Portable alarm analyzer for gesture recognition and gas detection

文档序号：697994 发布日期：2021-05-04 浏览：5次中文

阅读说明：本技术 一种姿态识别及气体检测的便携式报警分析仪 (Portable alarm analyzer for gesture recognition and gas detection ) 是由刘小红张奇崔殿于 2020-04-03 设计创作，主要内容包括：一种姿态识别及气体检测的便携式报警分析仪,包括MCU,与MCU相连的姿态采集单元、气体采集单元以及报警输出单元,姿态采集单元用于采集报警分析仪的当前姿态,气体采集单元用于采集当前所需要的检测气体,姿态采集单元将采集的报警分析仪的姿态信号传送至MCU,气体采集单元将采集的检测气体信号传送至MCU,MCU对姿态信号与检测气体信号进行分析,如果姿态信号的数值超过指定范围,则MCU发送报警信号至报警输出单元,或检测气体信号的数值超过指定范围,则MCU发送报警信号至报警输出单元,或姿态信号与检测气体信号相结合的数值超过指定范围,则MCU发送报警信号至报警输出单元,报警输出单元根据接收到的不同等级的报警信号输出声光报警或震动报警。(A portable alarm analyzer for posture recognition and gas detection comprises an MCU, a posture acquisition unit connected with the MCU, a gas acquisition unit and an alarm output unit, wherein the posture acquisition unit is used for acquiring the current posture of the alarm analyzer, the gas acquisition unit is used for acquiring the currently required detected gas, the posture acquisition unit transmits the acquired posture signal of the alarm analyzer to the MCU, the gas acquisition unit transmits the acquired detected gas signal to the MCU, the MCU analyzes the posture signal and the detected gas signal, if the numerical value of the posture signal exceeds a specified range, the MCU transmits an alarm signal to the alarm output unit, or the numerical value of the detected gas signal exceeds the specified range, the MCU transmits the alarm signal to the alarm output unit, or the numerical value of the posture signal combined with the detected gas signal exceeds the specified range, the MCU transmits the alarm signal to the alarm output unit, the alarm output unit outputs sound-light alarm or vibration alarm according to the received alarm signals of different grades.)

1. A portable alarm analyzer for gesture recognition and gas detection is characterized by comprising an MCU, a gesture acquisition unit, a gas acquisition unit and an alarm output unit which are connected with the MCU, wherein the gesture acquisition unit is used for acquiring the current gesture of the alarm analyzer, the gas acquisition unit is used for acquiring the currently required detected gas, the gesture acquisition unit transmits the acquired gesture signal of the alarm analyzer to the MCU, the gas acquisition unit transmits the acquired detected gas signal to the MCU, the MCU analyzes the gesture signal and the detected gas signal, if the value of the gesture signal exceeds a specified range, the MCU transmits an alarm signal to the alarm output unit, or if the value of the detected gas signal exceeds the specified range, the MCU transmits an alarm signal to the alarm output unit, or the numerical value of the combination of the attitude signal and the detected gas signal exceeds a specified range, the MCU sends an alarm signal to the alarm output unit, and the alarm output unit outputs sound-light alarm or vibration alarm according to the received alarm signals of different grades.

2. The portable alarm analyzer for gesture recognition and gas detection according to claim 1, wherein the gesture collection unit comprises a gyroscope chip U31, resistors R8, R16, R83, R147, R148 and R151, capacitors C99, C100, C101 and C102; the gyroscope chip U31 is used for acquiring current attitude signals of the alarm analyzer, including angular velocity and acceleration; pin 1 and pin 25 of the gyroscope chip U31 are connected and then grounded, pin 8 of the gyroscope chip U31 is connected with one end of the capacitor C101, pin 10 of the gyroscope chip U31 is connected with one end of the resistor R8, pin 11 of the gyroscope chip U31 is connected with one end of the capacitor C102, the other end of the capacitor C101, the other end of the resistor R8 and the other end of the capacitor C102 are connected and then grounded, pin 12 of the gyroscope chip U31 is connected with one end of the resistor R16, the other end of the resistor R16 is connected with a terminal, pin 13 of the gyroscope chip U31 is respectively connected with circuit voltage 3.3V and one end of the capacitor C100, the other end of the capacitor C100 is grounded, pin 18 of the gyroscope chip U31 is grounded, pin 21 of the gyroscope chip U31 is connected with one end of the capacitor C99, and the other end of the capacitor C99 is grounded, pin 23 of gyroscope chip U31 connects the one end of resistance R147, the other end of resistance R147 is connected respectively MCU's clock line interface with the one end of resistance R148, pin 24 of gyroscope chip U31 is connected the one end of resistance R83, the other end of resistance R83 is connected respectively MCU's data line interface with the one end of resistance R151, the other end of resistance R148 with the other end of resistance R151 links to each other the back and connects circuit voltage 3.3V.

3. The portable alarm analyzer for gesture recognition and gas detection according to claim 1, wherein the gas collection unit comprises an oxygen collection unit, a combustible gas collection unit and a toxic gas collection unit, the oxygen collection unit is used for collecting the oxygen concentration in the detection gas, the combustible gas collection unit is used for collecting the two combustible gas concentrations in the detection gas, and the toxic gas collection unit is used for collecting the six toxic gas concentrations in the detection gas.

4. The portable alarm analyzer for gesture recognition and gas detection according to claim 3, wherein said oxygen collection unit comprises operational amplifiers U611 and U612, transistor Q2, capacitors C4 and C58, resistors R13, R15, R25, R27, R54, R124 and R163; the non-inverting input end of the operational amplifier U611 is grounded, the output end of the operational amplifier U611 is connected with one end of the resistor R13 and then connected with the inverting input end of the operational amplifier U611 and then connected with the base of the triode Q2, the collector of the triode Q2 is connected with one end of the resistor R54, the other end of the resistor R54 is connected with the power supply voltage of 3.3V, the emitter of the triode Q2 is connected with one end of the resistor R15 and one end of the resistor R25 respectively, the other end of the resistor 15 is connected with one end of the resistor R27, one end of the capacitor C4, one end of the resistor R163 and the inverting input end of the operational amplifier U612 respectively, the other end of the resistor R27 is connected with one end of the resistor R124, the other end of the resistor R124 is grounded, the other end of the capacitor C4 is connected with the other end of the resistor R163 and then connected with the output end of the operational amplifier U612 and one end, the other end of the capacitor C58 is grounded, and the other end of the resistor R25 is connected with the other end of the resistor R13 and then connected with the non-inverting input end of the operational amplifier U612.

5. The portable alarm analyzer for gesture recognition and gas detection according to claim 3, wherein the flammable gas collecting unit comprises operational amplifiers U61, U62, U28 and U29, resistors R1, R2, R3, R4, R206, R207, R208 and R209, a capacitor C5; one end of the resistor R1 is respectively connected with a terminal and a first combustible gas input cathode, the other end of the resistor R1 is respectively connected with one end of the resistor R2 and a non-inverting input end of the operational amplifier U61, the other end of the resistor R2 is grounded, and an inverting input end of the operational amplifier U61 is connected with an output end and then connected with a first combustible gas output cathode; one end of the resistor R3 is respectively connected with a terminal and a first combustible gas input anode, the other end of the resistor R3 is respectively connected with one end of the resistor R4 and a non-inverting input end of the operational amplifier U62, the other end of the resistor R4 is connected with a negative power supply of the operational amplifier U62 and then grounded, an inverting input end of the operational amplifier U62 is connected with an output end and then connected with a first combustible gas output anode, a positive power supply of the operational amplifier U62 is respectively connected with a power supply voltage of 3.3V and one end of the capacitor C5, and the other end of the capacitor C5 is grounded; one end of the resistor R206 is respectively connected with a terminal and a second combustible gas input negative electrode, the other end of the resistor R206 is respectively connected with one end of the resistor R209 and a non-inverting input end of the operational amplifier U28, the other end of the resistor R209 is grounded, and an inverting input end of the operational amplifier U28 is connected with an output end and then is respectively connected with the terminal and a second combustible gas output negative electrode; one end of the resistor R207 is respectively connected with the terminal and the positive input electrode of the second combustible gas, the other end of the resistor R207 is respectively connected with one end of the resistor R208 and the non-inverting input end of the operational amplifier U29, the other end of the resistor R208 is grounded, and the inverting input end of the operational amplifier U29 is connected with the output end and then is respectively connected with the terminal and the positive output electrode of the second combustible gas.

6. The portable alarm analyzer for gesture recognition and gas detection according to claim 3, wherein the toxic gas collecting unit comprises a polarity switch U20, an operational amplifier U71, an operational amplifier U72, an operational amplifier U73, a transistor Q3, a capacitor C9, a capacitor C10, a capacitor C23, a capacitor C59, a capacitor C60, a resistor R31, a resistor R33, a resistor R55, a resistor R214, a resistor R215, a resistor R30, a resistor R44, a resistor R63, a resistor R50, a resistor R51, a resistor R161, a polarity switch U19, an operational amplifier U51, an operational amplifier U52, an operational amplifier U53, a transistor Q4, a capacitor C24, a capacitor C16, a capacitor C15, a resistor R216, a resistor R217, a resistor R15, a resistor R251, a resistor R15, operational amplifier U252, operational amplifier U253, transistor Q16, capacitor C56, capacitor C57, capacitor C63, capacitor C64, capacitor C65, resistor R38, resistor R84, resistor R20, resistor R57, resistor R117, resistor R58, resistor R164, resistor R96, resistor R116, polarity switch U34, operational amplifier U281, operational amplifier U282, operational amplifier U283, NMOS transistor Q18, capacitor C83, capacitor C84, capacitor C9, resistor R172, resistor R174, resistor R175, resistor R176, resistor R177, resistor R182, resistor R184, resistor R185, resistor R188, polarity switch U35, operational amplifier U291, operational amplifier U292, operational amplifier U293, transistor Q23, capacitor C85, capacitor C86, capacitor C89, resistor R173, resistor R178, resistor R179, resistor R187, resistor R183, resistor R189, operational amplifier U189, resistor R183, resistor R189, and resistor R189, The circuit comprises an operational amplifier U7, a triode Q9, a capacitor C50, a capacitor C51, a capacitor C67, a capacitor C68, a resistor R5, a resistor R6, a resistor R7, a resistor R41, a resistor R61, a resistor R74, a resistor R75, a resistor R76 and a resistor R165;

a termination power voltage 3.3V of resistance R214, the other end of resistance R214 with the tie point of the one end of resistance R215 is connected respectively resistance R30's one end with operational amplifier U73's homophase input end, resistance R215's other end ground connection, operational amplifier U73's inverting input end is connected resistance R31's one end, operational amplifier U73's output is connected capacitance C23's one end, capacitance C23's the other end with resistance R31's the other end links to each other the back and connects resistance R33's one end, resistance R33's the other end is connected triode Q3's base, triode Q3's collecting electrode is connected resistance R55's one end, power voltage 3.3V is connected to resistance R55's the other end, resistance R3's projecting pole is connected resistance R51's one end, resistance R51's the other end is connected respectively capacitance C10's one end, One end of the resistor R161 and an inverting input terminal of the operational amplifier U72, the other end of the capacitor C10, the other end of the resistor R161, and the output terminal of the operational amplifier U72 are connected and then connected to the first input terminal of the polarity switch U20, the other end of the resistor R30 is connected to the second input terminal of the polarity switch U20 and the inverting input terminal of the operational amplifier U71, the non-inverting input terminal of the operational amplifier U71 is connected to one end of the resistor R44 and one end of the resistor R63, the other end of the resistor R63 is grounded, the other end of the resistor R44 is connected to the power supply voltage 3.3V, one end of the resistor R45, and one end of the resistor R57, the negative power supply of the operational amplifier U71 is grounded, the positive power supply of the operational amplifier U71 is connected to the power supply voltage 3.3V and one end of the capacitor C9, and the other end of the capacitor C9 is grounded, the output end of the operational amplifier U71 is connected to one end of the resistor R50, the other end of the resistor R50 is connected to the non-inverting input end of the operational amplifier U72, the first output end of the polarity switch U20 is connected to one end of the capacitor C59 and then connected to the positive electrode of the first toxic gas signal channel, the second output end of the polarity switch U20 is connected to one end of the capacitor C60 and then connected to the negative electrode of the first toxic gas signal channel, and the other end of the capacitor C59 and the other end of the capacitor C60 are grounded, respectively;

one end of the resistor R216 is connected to the power supply voltage 3.3V, a connection point between the other end of the resistor R216 and one end of the resistor R217 is respectively connected to one end of the resistor R37 and the non-inverting input end of the operational amplifier U53, the other end of the resistor R217 is grounded, the inverting input end of the operational amplifier U53 is connected to one end of the resistor R32, the output end of the operational amplifier U53 is connected to one end of the capacitor C24, the other end of the capacitor C24 is connected to the other end of the resistor R32 and then connected to one end of the resistor R34, the other end of the resistor R34 is connected to the base of the triode Q4, the collector of the triode Q4 is connected to one end of the resistor R56, the other end of the resistor R56 is connected to the power supply voltage 3.3V, the emitter of the triode Q4 is connected to one end of the resistor R53, and the other end of the resistor R53 is, One end of the resistor R162 and an inverting input end of the operational amplifier U52, the other end of the capacitor C16, the other end of the resistor R162 and the output end of the operational amplifier U52 are connected and then connected to the first input end of the polarity switch U19, the other end of the resistor R37 is connected to the second input end of the polarity switch U19 and the inverting input end of the operational amplifier U51, the non-inverting input end of the operational amplifier U51 is connected to the other end of the resistor R45 and the one end of the resistor R64, the other end of the resistor R64 is grounded, the negative power supply of the operational amplifier U51 is grounded, the positive power supply of the operational amplifier U51 is connected to the power supply voltage 3.3V and the one end of the capacitor C15, the other end of the capacitor C15 is grounded, the output end of the operational amplifier U51 is connected to the one end of the resistor R52, and the other end of the resistor R52 is connected to the non-inverting input end of the, a first output end of the polarity switch U19 is connected to one end of the capacitor C61 and then connected to the anode of the second toxic gas signal channel, a second output end of the polarity switch U19 is connected to one end of the capacitor C62 and then connected to the cathode of the second toxic gas signal channel, and the other end of the capacitor C61 and the other end of the capacitor C62 are respectively grounded;

one end of the resistor R172 is connected to a power supply voltage of 3.3V, the other end of the resistor R172 is connected to one end of the resistor R182 and a non-inverting input terminal of the operational amplifier U281, the other end of the resistor R182 is grounded, a negative power supply of the operational amplifier U281 is grounded, a positive power supply of the operational amplifier U281 is connected to the power supply voltage of 3.3V and one end of the capacitor C83, the other end of the capacitor C83 is grounded, an inverting input terminal of the operational amplifier U281 is connected to one end of the resistor R174 and a second input terminal of the polarity switch U34, an output terminal of the operational amplifier U281 is connected to one end of the resistor R184, the other end of the resistor R184 is connected to a non-inverting input terminal of the operational amplifier U282, the other end of the resistor R174 is connected to a non-inverting input terminal 283 of the operational amplifier U, and the inverting input terminal of the operational amplifier U is connected, the output end of the operational amplifier U283 is connected to one end of the capacitor C88, the other end of the capacitor C88 is connected to the other end of the resistor R175 and one end of the resistor R176, the other end of the resistor R176 is connected to the drain of the NMOS transistor Q18, the gate of the NMOS transistor Q18 is connected to one end of the resistor R188, the other end of the resistor R188 is connected to the 3.3V power supply voltage, the source of the NMOS transistor Q18 is connected to one end of the resistor R185, the other end of the resistor R185 is connected to one end of the capacitor C84, one end of the resistor R177 and the inverting input end of the operational amplifier U282, the output end of the operational amplifier U282 is connected to the other end of the capacitor C84 and the other end of the resistor R177 and then connected to the first input end of the polarity switch U34, the first output end of the polarity switch U34 is connected to the positive pole of the toxic gas signal channel, the second output end of the polarity switch U34 is connected with the negative electrode of the third toxic gas signal channel;

one end of the resistor R173 is connected to a power supply voltage of 3.3V, the other end of the resistor R173 is connected to one end of the resistor R183 and a non-inverting input end of the operational amplifier U291, the other end of the resistor R183 is grounded, a negative power supply of the operational amplifier U291 is grounded, a positive power supply of the operational amplifier U291 is connected to the power supply voltage of 3.3V and one end of the capacitor C85, the other end of the capacitor C85 is grounded, an inverting input end of the operational amplifier U291 is connected to one end of the resistor R178 and a second input end of the polarity switch U35, an output end of the operational amplifier U291 is connected to one end of the resistor R186, the other end of the resistor R186 is connected to a non-inverting input end of the operational amplifier U292, the other end of the resistor R178 is connected to a non-inverting input end of the operational amplifier U293, and the inverting input end of the operational amplifier U293 is, the output end of the operational amplifier U293 is connected to one end of the capacitor C89, the other end of the capacitor C89 is connected to the other end of the resistor R179 and one end of the resistor R180, the other end of the resistor R180 is connected to the base of the transistor Q23, the collector of the transistor Q23 is connected to one end of the resistor R189, the other end of the resistor R189 is connected to a power supply voltage of 3.3V, the emitter of the transistor Q23 is connected to one end of the resistor R187, the other end of the resistor R187 is connected to one end of the capacitor C86, one end of the resistor R181 and the inverting input end of the operational amplifier U292, the output end of the operational amplifier U292 is connected to the other end of the capacitor C86 and the other end of the resistor R181 and then connected to the first input end of the polarity switch U35, the first output end of the polarity switch U35 is connected to the positive pole of the fourth toxic gas signal channel, the second output end of the polarity switch U35 is connected with the negative electrode of the fourth toxic gas signal channel;

one end of the resistor R41 is connected to a power supply voltage of 3.3V, the other end of the resistor R41 is connected to one end of the resistor R76 and a non-inverting input terminal of the operational amplifier U5, the other end of the resistor R76 is grounded, an inverting input terminal of the operational amplifier U5 is connected to one end of the resistor R5 and a second input terminal of the polarity switch U27, an output terminal of the operational amplifier U5 is connected to one end of the resistor R61, the other end of the resistor R61 is connected to a non-inverting input terminal of the operational amplifier U25, the other end of the resistor R5 is connected to a non-inverting input terminal of the operational amplifier U7, an inverting input terminal of the operational amplifier U7 is connected to one end of the resistor R6, an output terminal of the operational amplifier U7 is connected to one end of the capacitor C67, and the other end of the capacitor C67 is connected to the other end of the resistor R6 and one, the other end of the resistor R7 is connected to the base of the triode Q9, the collector of the triode Q9 is connected to one end of the resistor R75, the other end of the resistor R75 is connected to the power voltage 3.3V, the emitter of the triode Q9 is connected to one end of the resistor R74, the other end of the resistor R74 is connected to one end of the capacitor C50, one end of the resistor R165 and the inverting input end of the operational amplifier U25, the output end of the operational amplifier U25 is connected to the other end of the capacitor C50 and the other end of the resistor R165 and then connected to the first input end of the polarity switch U27, the first output end of the polarity switch U27 is connected to one end of the capacitor C68 and then connected to the positive pole of the fifth toxic gas signal channel, the second output end of the polarity switch U27 is connected to one end of the capacitor C51 and then connected to the negative pole of the fifth toxic gas signal channel, the other end of the capacitor C68 and the other end of the capacitor C51 are respectively grounded;

the other end of the resistor R57 is connected to one end of the resistor R117 and the non-inverting input terminal of the operational amplifier U251, the other end of the resistor R117 is grounded, the negative power supply of the operational amplifier U251 is grounded, the positive power supply of the operational amplifier U251 is connected to a power supply voltage of 3.3V and one end of the capacitor C56, the other end of the capacitor C56 is grounded, the inverting input terminal of the operational amplifier U251 is connected to one end of the resistor R20 and the second input terminal of the polarity switching switch U26, the output terminal of the operational amplifier U251 is connected to one end of the resistor R58, the other end of the resistor 5639 is connected to the non-inverting input terminal of the operational amplifier U252, the other end of the resistor R20 is connected to the non-inverting input terminal of the operational amplifier U253, the inverting input terminal of the operational amplifier U253 is connected to one end of the capacitor C65, the other end of the capacitor C65 is connected to the other end of the resistor R84 and one end of the resistor R38, the other end of the resistor R38 is connected to the base of the transistor Q16, the collector of the transistor Q16 is connected to one end of the resistor R116, the other end of the resistor R116 is connected to the power supply voltage 3.3V, the emitter of the transistor Q16 is connected to one end of the resistor R96, the other end of the resistor R96 is connected to one end of the capacitor C57, one end of the resistor R164 and the inverting input terminal of the operational amplifier U252, the output terminal of the operational amplifier U252 is connected to the other end of the capacitor C57 and the other end of the resistor R164 and then connected to the first input terminal of the polarity switch U26, the first output terminal of the polarity switch U26 is connected to one end of the capacitor C63 and then connected to the positive terminal of the sixth toxic gas signal channel, the second output terminal of the polarity switch U26 is connected to one end of the capacitor C64 and then connected to the sixth toxic gas signal The other end of the capacitor C63 and the other end of the capacitor C64 are respectively grounded.

7. The portable alarm analyzer for gesture recognition and gas detection according to claim 1, further comprising a power supply unit, a communication interface recognition unit, a wireless communication unit, a storage unit and a human-computer interaction unit connected with the MCU, wherein the power supply unit is used for providing a working power supply for the alarm analyzer, the communication interface recognition power supply is used for connecting the alarm analyzer with an external device to realize data interaction and export, the wireless communication unit is used for remote data transmission of the alarm analyzer, the storage unit is used for storing data in the alarm analyzer, and the human-computer interaction unit is used for human-computer interaction operation between a user and the alarm analyzer.

8. The portable alarm analyzer for gesture recognition and gas detection according to claim 7, wherein the power supply unit comprises a charging circuit and a power management circuit; the charging circuit is used for charging a lithium battery of the alarm analyzer so as to enable the alarm analyzer to realize a portable working mode; the power supply management circuit is used for providing stable working voltage for the alarm analyzer;

the charging circuit comprises a battery charging management chip U8, an adjustable resistor RP1, a triode Q1, a voltage stabilizing diode D20, a light emitting diode D2, capacitors C1 and C2, resistors R17, R24, R26, R59, R60 and R123; pin 1 of the battery charging management chip U8 is connected to the emitter of the triode Q1 and one end of the resistor R59, the other end of the resistor R59 is connected to the USB input power source, one end of the resistor R123 and one end of the capacitor C1, pin 2 of the battery charging management chip U8 is connected to the negative electrode of the zener diode D20 and one end of the capacitor C2, one end of the capacitor C2 is also connected to the external charging power source, the other end of the capacitor C2 is grounded, pin 3 of the battery charging management chip U8 is connected to the other end of the resistor R123, pin 4 of the battery charging management chip U8 is connected to one end of the resistor R24, one end of the adjustable resistor RP1 and one end of the resistor R26, the other end of the resistor R24 is connected to the USB input power source, pin 5 of the battery charging management chip U8 is connected to the positive electrode of the light emitting diode D2, the negative electrode of the light emitting diode D2 is connected to one end of the resistor R17, the other end of the resistor R17, the other end of the resistor R26 and the other end of the adjustable resistor RP1 are connected and then grounded, the pin 6 of the battery charging management chip U8 is connected to the other end of the capacitor C1 and then grounded, the pin 7 of the battery charging management chip U8 is connected to one end of the resistor R60, the other end of the resistor R60 is connected to the base of the triode Q1, the collector of the triode Q1 is connected to the positive electrode of the zener diode D20, and the pin 8 of the battery charging management chip U8 is connected to a USB input power supply;

the power management circuit comprises power management chips U1 and U2, a switch chip U23, magnetic core inductors L1, L2, L5 and L8, polarity capacitors E4, E5 and E2, capacitors C70, C77, C76, C75, C74, C71 and C3, resistors R115, R47, R140, R139, R42, R46, R138, R94, R68, R65, R11, R62, R95 and R48, a triode Q10, diodes D4 and D15, KEYs KEY8 and a fuse F1; pin 1 of the power management chip U1 is connected with one end of the capacitor C78 and the anode of the polar capacitor E5, the other end of the capacitor C78 is connected with the cathode of the polar capacitor and then is grounded, the anode of the polar capacitor E5 is connected with one end of the resistor R42 and one end of the capacitor C74, the other end of the capacitor C74 is grounded, one end of the capacitor C74 is connected with the power voltage 3.3V and the circuit voltage terminal, the pin 1, pin 2 and pin 3 of the switch chip U23 are connected with the circuit voltage terminal and one end of the resistor R94, the pin 4 of the switch chip U23 is connected with the other end of the resistor R94, one end of the resistor R68 and one end of the resistor R65, the other end of the resistor R68 is connected with one end of the capacitor C47, one end of the KEY8 and the other end of the resistor R65, the other end of the resistor R65 is further connected with the collector of the triode Q10 and the cathode of the diode D4, the anode of the diode D4 is connected with one end of the resistor R11 and the power supply of the KEY KEY8, the other end of the resistor R11 is connected with the circuit voltage of 3.3V, the base of the triode Q10 is connected with one end of the resistor R95 and the cathode of the diode D15, the cathode of the diode D15 is also connected with one end of the resistor R62, the other end of the resistor R62 is connected with an external power supply, the anode of the diode D15 is connected with one end of the resistor R48, the other end of the resistor R48 is connected with the 3.3V output, the other end of the capacitor C47, the other end of the KEY KEY8, the emitter of the triode Q10 and the other end of the resistor R95 are connected and then grounded, and the pin 5, pin 6, pin 7 and pin 8 of the switch chip 23 are connected and then connected with the circuit voltage terminal of 3.3V and 3.3V 3, One end of the inductor with magnetic core L8, one end of the inductor with magnetic core L5 and a connection point of one end of the capacitor C71, the other end of the capacitor C71 is grounded, the other end of the inductor with magnetic core L5 is connected with a power voltage of 3.3V and one end of the capacitor C3, the other end of the capacitor C3 is grounded, the pin 2 of the power management chip U1 is connected with one end of the inductor with magnetic core L1, the pin 3 of the power management chip U1 is grounded, the pin 4 of the power management chip U1 is connected with the other end of the inductor with magnetic core U1, the pin 5 of the power management chip U1 is connected with the pin 6 and the pin 8 of the power management chip U1, the positive electrode of the polar capacitor E2, one end of the capacitor C75, the pin 5 of the power management chip U2 and one end of the F fuse 1, and the other external power source of the fuse F1 is connected with the external power source, the other end of the capacitor C75 is connected to the negative electrode of the polar capacitor E2 and then grounded, the pin 7 of the power management chip U1 is connected to one end of the resistor R138, the other end of the resistor R138 is grounded, the pin 9 of the power management chip U1 is connected to one end of the resistor R46 and ground, the pin 10 of the power management chip U1 is connected to the other end of the resistor R42 and the other end of the resistor R46, the pin 11 of the power management chip U1 is grounded, the pin 5 of the power management chip U2 is also connected to one end of the capacitor C76 and the pin 8 of the power management chip U2, the other end of the capacitor C76 is grounded, the pin 1 of the power management chip U2 is connected to one end of the capacitor C77, the positive electrode of the polar capacitor E4, one end of the resistor R115 and the power supply 3.3V terminal, and the power supply 3.3V terminal is also connected to one end of the capacitor C70, the other end of the capacitor C70 is grounded, the other end of the capacitor C77 is grounded after being connected with the negative electrode of the polar capacitor E4, a pin 2 of the power management chip U2 is connected with one end of the inductor with magnetic core L2, a pin 3 of the power management chip U2 is grounded, a pin 4 of the power management chip U2 is connected with the other end of the inductor with magnetic core L2, a pin 6 of the power management chip U2 is connected with one end of the resistor R139, a pin 7 of the power management chip U2 is connected with one end of the resistor R140, the other end of the resistor R139 is grounded after being connected with the other end of the resistor R140, a pin 9 of the power management chip U2 is grounded respectively and one end of the resistor R47, and the other end of the resistor R47 is connected with a pin 10 of the power management chip U2 and the other end of the resistor R115 respectively.

9. The portable alarm analyzer for gesture recognition and gas detection according to claim 7, wherein the communication interface recognition unit comprises an interface selection circuit, a USB interface, an RS232 interface and a bluetooth interface; the interface selection circuit is used for identifying the connection mode of an external device and the alarm analyzer through a USB interface, an RS232 interface or a Bluetooth interface, the USB interface is used for connecting the alarm analyzer with the external device through the USB interface, the RS232 interface is used for connecting the alarm analyzer with the external device through the RS232 interface, and the Bluetooth interface is used for connecting the alarm analyzer with the external device through the Bluetooth interface;

the interface selection circuit comprises an analog switch and multiplexer U21, a capacitor C26 and a resistor R80; the analog switch and multiplexer U21 is used for switching the alarm analyzer to be connected with external equipment through different interfaces; pin 1 of the analog switch and multiplexer U21 is connected with the input end of the USB interface, pin 16 of the analog switch and multiplexer U21 is connected with one end of the resistor R80, pin 2 of the analog switch and multiplexer U21 is connected with the other end of the resistor R80 and then is connected with circuit voltage 3.3V, pin 3 of the analog switch and multiplexer U21 is connected with pin 15 and then is grounded, pin 4 of the analog switch and multiplexer U21 is connected with the data output end of the RS232 interface, pin 5 and pin 7 of the analog switch and multiplexer U21 are connected, pin 8 of the analog switch and multiplexer U21 is connected with the data output end of the MCU, pin 9 of the analog switch and multiplexer U21 is connected with the data input end of the MCU, pin 10 of the analog switch and multiplexer U21 is connected with pin 12, the pin 11 of the analog switch and multiplexer U21 is connected with the data output end of the Bluetooth interface, the pin 6 of the analog switch and multiplexer U21 is connected with the data input end of the Bluetooth interface, the pin 13 of the analog switch and multiplexer U21 is connected with the data input end of the RS232 interface, the pin 14 of the analog switch and multiplexer U21 is respectively connected with the circuit voltage 3.3V and one end of the capacitor C26, and the other end of the capacitor C26 is grounded;

when the level of the pin 1 of the analog switch and multiplexer U21 is 1, and the level of the pin 16 of the analog switch and multiplexer U21 is 0, the interface selection circuit selects an external device to be connected with the alarm analyzer through the Bluetooth interface;

when the level of the pin 1 of the analog switch and multiplexer U21 is 1, and the level of the pin 16 of the analog switch and multiplexer U21 is 1, the interface selection circuit selects an external device to be connected with the alarm analyzer through the USB interface;

when the level of the pin 1 of the analog switch and multiplexer U21 is 0, the level of the pin 16 of the analog switch and multiplexer U21 is 0, and the interface selection circuit selects an external device to be connected with the alarm analyzer through the RS232 interface;

when the level of the pin 1 of the analog switch and multiplexer U21 is 0, the level of the pin 16 of the analog switch and multiplexer U21 is 1, and the interface selection circuit selects an external device to be connected with the alarm analyzer through the USB interface and the RS232 interface;

the USB interface comprises an interface conversion chip U10, inductors L6 and L13 with magnetic cores, a polar capacitor E1, triodes Q19, Q20, Q21 and Q22, piezoresistors R131, R132 and R133, a socket J1, resistors R125, R126, R127, R129 and R130, and capacitors C6 and C7; the interface conversion chip U10 realizes the conversion from USB to serial UART interface, and can also convert to synchronous and asynchronous Bit-Bang interface mode; pin 1 of the socket J1 is connected to a USB power supply, one end of the varistor R133 and the positive electrode of the polar capacitor E1, pin 2 of the socket J1 is connected to one end of the varistor R132, pin 3 of the socket J1 is connected to one end of the varistor R131, pin 5 of the socket J1 is connected to ground, the other end of the varistor R131, the other end of the varistor R132, the other end of the varistor R133 and the negative electrode of the polar capacitor, pin 8 and pin 9 of the socket J1 are connected to one end of the iron core-containing inductor L13, and the other end of the iron core-containing inductor L13 is connected to ground; pin 1 of the interface conversion chip U10 is a data output terminal, pin 5 of the interface conversion chip U10 is a data input terminal, pin 4 of the interface conversion chip U10 is connected to a 3.3V output, pin 16 of the interface conversion chip U10 is connected to a negative terminal of a USB data line, pin 15 of the interface conversion chip U10 is connected to a positive terminal of the USB data line, pin 25, pin 7, pin 18, pin 21 and pin 26 of the interface conversion chip U10 are connected, pin 20 of the interface conversion chip U10 is connected to one end of the inductor with iron core L6 and one end of the capacitor C6 respectively, the other end of the capacitor C6 is grounded, the other end of the inductor with iron core L6 is connected to a USB input power supply, pin 17 of the interface conversion chip U10 is connected to one end of the capacitor C7, and the other end of the capacitor C7 is grounded; one end of the resistor R125 is connected with a data output end of the MCU, the other end of the resistor R125 is connected with a base electrode of the triode Q19, the emitter electrode of the triode Q19 and the emitter electrode of the triode Q20 are connected and then grounded, a collector electrode of the triode Q19 is respectively connected with one end of the resistor R127 and the base electrode of the triode Q20, the other end of the resistor R127 and one end of the resistor R129 are connected and then connected with a 3.3V output, and the other end of the resistor R129 and the collector electrode of the triode Q20 are connected and then connected with a data input end of the interface conversion chip U10; one end of the resistor R126 is connected with a data output end of the interface conversion chip U10, the other end of the resistor R126 is connected with a base electrode of the triode Q21, a collector electrode of the triode Q21 is connected with a collector electrode of the triode Q22 and then grounded, an emitter electrode of the triode Q21 is respectively connected with one end of the resistor R128 and a base electrode of the triode Q22, the other end of the resistor R128 is connected with one end of the resistor R130 and then connected with a circuit voltage of 3.3V, and the other end of the resistor R130 is connected with an emitter electrode of the triode Q22 and then connected with a data input end of the MCU;

the RS232 interface comprises a transceiver U15, a protection end U22, an RS232 port J11, capacitors C27, C28, C29, C30 and C31; the transceiver U15 is an RS232 driving chip, and the protection end U22 is used for avoiding damage of surge current to an RS232 port; pin 1 of the RS232 port J11 is connected with pin 3 of the protection terminal U22 and then grounded, pin 2 of the RS232 port J11 is connected with pin 2 of the protection terminal U22, pin 3 of the RS232 port J11 is connected with pin 1 of the protection terminal U22, and pin 4 of the RS232 port J11 is connected with the 232 data transmission terminal of the MCU; pin 1 of the transceiver U15 is connected to one end of the capacitor C28, pin 3 of the transceiver U15 is connected to the other end of the capacitor C28, pin 2 of the transceiver U15 is connected to one end of the capacitor C29, the other end of the capacitor C29 is connected to circuit voltage 3.3V, pin 4 of the transceiver U15 is connected to one end of the capacitor C30, pin 5 of the transceiver U15 is connected to the other end of the capacitor C30, pin 6 of the transceiver U15 is connected to one end of the capacitor C31, the other end of the capacitor C31 is grounded, pin 11 of the transceiver U15 is connected to the 232 data transmitting terminal of the MCU, pin 12 of the transceiver U15 is connected to the 232 data receiving terminal of the MCU, pin 13 of the transceiver U15 is connected to the data receiving terminal of the MCU, pin 14 of the transceiver U15 is connected to the data transmitting terminal of the MCU, and pin 15 of the transceiver U15 is grounded, the pin 16 of the transceiver U15 is respectively connected with the circuit voltage of 3.3V and one end of the capacitor C27, and the other end of the capacitor C27 is grounded;

the Bluetooth interface comprises a Bluetooth module U16, capacitors C18 and C180; pin 1 of bluetooth module U16 connects the bluetooth data transmitting terminal of MCU, pin 2 of bluetooth module U16 connects the bluetooth data receiving terminal of MCU, bluetooth module U16's pin 10 connects the network end of MCU, bluetooth module U16's pin 12 connects respectively electric capacity C180's one end with electric capacity C18's one end, electric capacity C18's one end is still connected circuit voltage 3.3V, electric capacity C18's the other end with electric capacity C180's the other end ground connection respectively, bluetooth module U16's pin 13 ground connection, bluetooth module U16's pin 21 ground connection, bluetooth module U16's pin 22 ground connection, bluetooth module U16's pin 33 connects the connection status end of MCU.

10. The portable alarm analyzer for gesture recognition and gas detection according to claim 7, wherein the wireless communication unit comprises a GPRS circuit and a ZigBee circuit; the GPRS circuit is used for data transmission of the alarm analyzer in a GPRS mode, and the ZigBee circuit is used for data transmission of the alarm analyzer in a ZigBee mode;

the GPRS circuit comprises a GPRS module J17, a switch chip U30, a triode Q24, a capacitor C90, resistors R153, R154, R155, R156, R200, R201, R202, R204 and R205; pin 1 of the GPRS module J11 is connected to one end of the resistor R153, the other end of the resistor R153 is connected to 232 data receiving end of the MCU, pin 2 of the GPRS module J11 is connected to one end of the resistor R154, the other end of the resistor R154 is connected to 232 data transmitting end of the MCU, pin 3 of the GPRS module J11 is grounded, pin 5 and pin 6 of the GPRS module J11 are connected to circuit voltage, respectively, pin 7 of the GPRS module J11 is connected to one end of the resistor R156, and the other end of the resistor R156 is connected to circuit voltage 3.3V; pin 1, pin 2 and pin 3 of switch chip U30 connect respectively after being connected the one end of resistance R200, the one end of resistance R201 and the one end of resistance R204, the other end of resistance R200 is connected circuit voltage 5V, the other end of resistance R210 is connected with the sensor power, the other end of resistance R204 is connected respectively triode Q24's collecting electrode and switch chip U30's pin 4, triode Q24's base is connected respectively resistance R205's one end and resistance R203's one end, the other end of resistance R205 connects the GPRS power, the other end of resistance R203 and triode Q24's emitter connect the back ground connection, connect after pin 5, pin 6, pin 7 and pin 8 of switch chip U30 connect the one end of resistance R202, the other end of resistance R202 connects the GPRS voltage respectively and the one end of electric capacity C90, the other end of the capacitor C90 is grounded;

the ZigBee circuit comprises a ZigBee communication module U17, a pin 1 of the ZigBee communication module U17 is connected with a circuit voltage of 3.3V, a pin 2 of the ZigBee communication module U17 is connected with a Bluetooth data sending end of the MCU, a pin 3 of the ZigBee communication module U17 is connected with a Bluetooth data receiving end of the MCU, a pin 4 of the ZigBee communication module U17 is connected with a network end of the MCU, a pin 5 of the ZigBee communication module U17 is connected with a connection state end of the MCU, and a pin 6 of the ZigBee communication module U17 is grounded.

Technical Field

The invention relates to the technical field of gas detectors, in particular to a portable alarm analyzer for gesture recognition and gas detection.

Background

Many toxic, harmful, flammable and explosive gases generated in industrial production processes are important rings which must be prevented in industrial safety production. The gas detection and monitoring can effectively carry out pre-disaster inhibition, so that possible accidents are controlled in advance, and the personal safety is protected at the same time; however, due to the complexity of the production environment, besides the known gas poisoning and explosion risks, the operators have some potential unknown safety hazards during working, which cause accidents such as falling down, falling down and falling into a pit, and the operators cannot give an alarm for a long time to cause excessive toxic gas poisoning, thereby causing casualty accidents.

Therefore, there is a need for an alarm analyzer with both gesture recognition and gas detection, which can alarm when an operator is in an accident by detecting the movement trajectory of the operator and the concentration of gas.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a portable alarm analyzer for gesture recognition and gas detection, which has the functions of gesture recognition and gas detection and can alarm when an operator has an accident by detecting the motion track of the operator and the concentration of gas.

In order to achieve the purpose, the invention adopts the technical scheme that: the portable alarm analyzer comprises an MCU, an attitude acquisition unit, a gas acquisition unit and an alarm output unit, wherein the attitude acquisition unit, the gas acquisition unit and the alarm output unit are connected with the MCU, the attitude acquisition unit is used for acquiring the current attitude of the alarm analyzer, the gas acquisition unit is used for acquiring the currently required detected gas, the attitude acquisition unit transmits the acquired attitude signal of the alarm analyzer to the MCU, the gas acquisition unit transmits the acquired detected gas signal to the MCU, the MCU analyzes the attitude signal and the detected gas signal, if the numerical value of the attitude signal exceeds a specified range, the MCU transmits an alarm signal to the alarm output unit, or if the numerical value of the detected gas signal exceeds the specified range, the MCU transmits an alarm signal to the alarm output unit, or the numerical value of the combination of the attitude signal and the detected gas signal exceeds a specified range, the MCU sends an alarm signal to the alarm output unit, and the alarm output unit outputs sound-light alarm or vibration alarm according to the received alarm signals of different grades.

Further, the attitude acquisition unit comprises a gyroscope chip U31, resistors R8, R16, R83, R147, R148 and R151, capacitors C99, C100, C101 and C102; the gyroscope chip U31 is used for acquiring current attitude signals of the alarm analyzer, including angular velocity and acceleration; pin 1 and pin 25 of the gyroscope chip U31 are connected and then grounded, pin 8 of the gyroscope chip U31 is connected with one end of the capacitor C101, pin 10 of the gyroscope chip U31 is connected with one end of the resistor R8, pin 11 of the gyroscope chip U31 is connected with one end of the capacitor C102, the other end of the capacitor C101, the other end of the resistor R8 and the other end of the capacitor C102 are connected and then grounded, pin 12 of the gyroscope chip U31 is connected with one end of the resistor R16, the other end of the resistor R16 is connected with a terminal, pin 13 of the gyroscope chip U31 is respectively connected with circuit voltage 3.3V and one end of the capacitor C100, the other end of the capacitor C100 is grounded, pin 18 of the gyroscope chip U31 is grounded, pin 21 of the gyroscope chip U31 is connected with one end of the capacitor C99, and the other end of the capacitor C99 is grounded, pin 23 of gyroscope chip U31 connects the one end of resistance R147, the other end of resistance R147 is connected respectively the clock line interface SCL of MCU with the one end of resistance R148, pin 24 of gyroscope chip U31 is connected the one end of resistance R83, the other end of resistance R83 is connected respectively the data line interface SDA of MCU with the one end of resistance R151, the other end of resistance R148 with the other end of resistance R151 links to each other the back circuit voltage 3.3V.

Further, gaseous collection unit includes oxygen collection unit, combustible gas collection unit and toxic gas collection unit, oxygen collection unit is arranged in gathering the oxygen concentration in the testing gas, combustible gas collection unit is arranged in gathering two kinds of combustible gas concentration in the testing gas, toxic gas collection unit is arranged in gathering six kinds of toxic gas concentration in the testing gas.

Further, the oxygen collecting unit comprises operational amplifiers U611 and U612, a triode Q2, capacitors C4 and C58, resistors R13, R15, R25, R27, R54, R124 and R163; the non-inverting input end of the operational amplifier U611 is grounded, the output end of the operational amplifier U611 is connected with one end of the resistor R13 and then connected with the inverting input end of the operational amplifier U611 and then connected with the base of the triode Q2, the collector of the triode Q2 is connected with one end of the resistor R54, the other end of the resistor R54 is connected with the power supply voltage of 3.3V, the emitter of the triode Q2 is connected with one end of the resistor R15 and one end of the resistor R25 respectively, the other end of the resistor 15 is connected with one end of the resistor R27, one end of the capacitor C4, one end of the resistor R163 and the inverting input end of the operational amplifier U612 respectively, the other end of the resistor R27 is connected with one end of the resistor R124, the other end of the resistor R124 is grounded, the other end of the capacitor C4 is connected with the other end of the resistor R163 and then connected with the output end of the operational amplifier U612 and one end, the other end of the capacitor C58 is grounded, and the other end of the resistor R25 is connected with the other end of the resistor R13 and then connected with the non-inverting input end of the operational amplifier U612.

Further, the combustible gas collecting unit comprises operational amplifiers U61, U62, U28 and U29, resistors R1, R2, R3, R4, R206, R207, R208 and R209, and a capacitor C5; one end of the resistor R1 is respectively connected with a terminal and a first combustible gas input cathode, the other end of the resistor R1 is respectively connected with one end of the resistor R2 and a non-inverting input end of the operational amplifier U61, the other end of the resistor R2 is grounded, and an inverting input end of the operational amplifier U61 is connected with an output end and then connected with a first combustible gas output cathode; one end of the resistor R3 is respectively connected with a terminal and a first combustible gas input anode, the other end of the resistor R3 is respectively connected with one end of the resistor R4 and a non-inverting input end of the operational amplifier U62, the other end of the resistor R4 is connected with a negative power supply of the operational amplifier U62 and then grounded, an inverting input end of the operational amplifier U62 is connected with an output end and then connected with a first combustible gas output anode, a positive power supply of the operational amplifier U62 is respectively connected with a power supply voltage of 3.3V and one end of the capacitor C5, and the other end of the capacitor C5 is grounded; one end of the resistor R206 is respectively connected with a terminal and a second combustible gas input negative electrode, the other end of the resistor R206 is respectively connected with one end of the resistor R209 and a non-inverting input end of the operational amplifier U28, the other end of the resistor R209 is grounded, and an inverting input end of the operational amplifier U28 is connected with an output end and then is respectively connected with the terminal and a second combustible gas output negative electrode; one end of the resistor R207 is respectively connected with the terminal and the positive input electrode of the second combustible gas, the other end of the resistor R207 is respectively connected with one end of the resistor R208 and the non-inverting input end of the operational amplifier U29, the other end of the resistor R208 is grounded, and the inverting input end of the operational amplifier U29 is connected with the output end and then is respectively connected with the terminal and the positive output electrode of the second combustible gas.

Further, the toxic gas collecting unit includes a polarity switch U20, an operational amplifier U71, an operational amplifier U72, an operational amplifier U73, a transistor Q3, a capacitor C9, a capacitor C10, a capacitor C23, a capacitor C59, a capacitor C60, a resistor R31, a resistor R33, a resistor R55, a resistor R214, a resistor R215, a resistor R30, a resistor R44, a resistor R63, a resistor R50, a resistor R51, a resistor R161, a polarity switch U51, an operational amplifier U51, a transistor Q51, a capacitor C51, a resistor R216, a resistor R217, a resistor R51, a resistor U51, a capacitor C51, a capacitor U36251, a capacitor C51, a capacitor C64, a capacitor C65, a resistor R38, a resistor R84, a resistor R20, a resistor R57, a resistor R117, a resistor R58, a resistor R164, a resistor R96, a resistor R116, a polarity-switching switch U34, an operational amplifier U281, an operational amplifier U282, an operational amplifier U283, an NMOS transistor Q18, a capacitor C83, a capacitor C84, a capacitor C88, a resistor R172, a resistor R174, a resistor R175, a resistor R176, a resistor R177, a resistor R182, a resistor R184, a resistor R185, a resistor R188, a polarity-switching switch U35, an operational amplifier U291, an operational amplifier U292, an operational amplifier U293, a transistor Q23, a capacitor C85, a capacitor C86, a capacitor C89, a resistor R173, a resistor R178, a resistor R179, a resistor R180, a resistor R181, a resistor R187, a resistor R189, a resistor R183, a polarity-switching switch U27, a capacitor U27, an operational amplifier U27, a capacitor C27, a transistor 363672, a, The resistor R5, the resistor R6, the resistor R7, the resistor R41, the resistor R61, the resistor R74, the resistor R75, the resistor R76 and the resistor R165;

Further, the alarm analyzer further comprises a power supply unit, a communication interface identification unit, a wireless communication unit, a storage unit and a human-computer interaction unit, wherein the power supply unit is connected with the MCU, the power supply unit is used for providing a working power supply for the alarm analyzer, the communication interface identification power supply is used for connecting the alarm analyzer with external equipment so as to realize data interaction and derivation, the wireless communication unit is used for remotely transmitting data to the alarm analyzer, the storage unit is used for storing the data to the alarm analyzer, and the human-computer interaction unit is used for a user and human-computer interaction operation of the alarm analyzer.

Further, the power supply unit includes a charging circuit and a power management circuit; the charging circuit is used for charging a lithium battery of the alarm analyzer so as to enable the alarm analyzer to realize a portable working mode; the power supply management circuit is used for providing stable working voltage for the alarm analyzer;

Furthermore, the communication interface identification unit comprises an interface selection circuit, a USB interface, an RS232 interface and a Bluetooth interface; the interface selection circuit is used for identifying the connection mode of an external device and the alarm analyzer through a USB interface, an RS232 interface or a Bluetooth interface, the USB interface is used for connecting the alarm analyzer with the external device through the USB interface, the RS232 interface is used for connecting the alarm analyzer with the external device through the RS232 interface, and the Bluetooth interface is used for connecting the alarm analyzer with the external device through the Bluetooth interface;

Further, the wireless communication unit comprises a GPRS circuit and a ZigBee circuit; the GPRS circuit is used for data transmission of the alarm analyzer in a GPRS mode, and the ZigBee circuit is used for data transmission of the alarm analyzer in a ZigBee mode;

Compared with the prior art, the portable alarm analyzer for posture recognition and gas detection comprises an MCU, a posture acquisition unit, a gas acquisition unit and an alarm output unit, wherein the posture acquisition unit, the gas acquisition unit and the alarm output unit are connected with the MCU, the posture acquisition unit is used for acquiring the current posture of the alarm analyzer, the gas acquisition unit is used for acquiring currently required detection gas, the posture acquisition unit transmits acquired posture signals of the alarm analyzer to the MCU, the gas acquisition unit transmits acquired detection gas signals to the MCU, the MCU analyzes the posture signals and the detection gas signals, if the numerical value of the posture signals exceeds a specified range, the MCU transmits alarm signals to the alarm output unit, or the numerical value of the detection gas signals exceeds the specified range, the MCU transmits alarm signals to the alarm output unit, or the numerical value of the combination of the posture signals and the detection gas signals exceeds the specified range, the MCU sends an alarm signal to the alarm output unit, and the alarm output unit outputs sound-light alarm or vibration alarm according to the received alarm signals of different grades; the gas detection device has the functions of gesture recognition and gas detection, so that the alarm can be given when an accident happens to an operator by detecting the motion track of the operator and the concentration of gas.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a block diagram of a system of a portable alarm analyzer for gesture recognition and gas detection according to an embodiment of the present invention.

Fig. 2 is a schematic circuit diagram of a posture collecting unit of a portable alarm analyzer for posture recognition and gas detection according to an embodiment of the present invention.

Fig. 3 is a schematic circuit diagram of an oxygen collection unit of a portable alarm analyzer for gesture recognition and gas detection according to an embodiment of the present invention.

Fig. 4 is a schematic circuit diagram of a combustible gas collecting unit of the portable alarm analyzer for gesture recognition and gas detection according to the embodiment of the present invention.

Fig. 5 is a schematic circuit diagram of a toxic gas collection unit of a portable alarm analyzer for gesture recognition and gas detection according to an embodiment of the present invention.

Fig. 6 is a schematic diagram of a charging circuit of a portable alarm analyzer for gesture recognition and gas detection according to an embodiment of the present invention.

Fig. 7 is a schematic diagram of a power management circuit of a portable alarm analyzer for gesture recognition and gas detection according to an embodiment of the present invention.

Fig. 8 is a schematic diagram of an interface selection circuit of a portable alarm analyzer for gesture recognition and gas detection according to an embodiment of the present invention.

Fig. 9 is a schematic circuit diagram of a USB interface of a portable alarm analyzer for gesture recognition and gas detection according to an embodiment of the present invention.

Fig. 10 is a schematic circuit diagram of an RS232 interface of a portable alarm analyzer for gesture recognition and gas detection according to an embodiment of the present invention.

Fig. 11 is a schematic circuit diagram of a bluetooth interface of a portable alarm analyzer for gesture recognition and gas detection according to an embodiment of the present invention.

Fig. 12 is a schematic diagram of a GPRS circuit of a portable alarm analyzer for gesture recognition and gas detection according to an embodiment of the present invention.

Fig. 13 is a schematic diagram of a ZigBee circuit of a portable alarm analyzer for gesture recognition and gas detection according to an embodiment of the present invention.

FIG. 14 is a schematic circuit diagram of a memory cell of a portable alarm analyzer for gesture recognition and gas detection according to an embodiment of the present invention.

Fig. 15 is a schematic diagram of a key circuit of a portable alarm analyzer for gesture recognition and gas detection according to an embodiment of the present invention.

Fig. 16 is a schematic circuit diagram of an alarm output unit of a portable alarm analyzer for gesture recognition and gas detection according to an embodiment of the present invention.

The mark in the above figure is 1, MCU; 2. an attitude acquisition unit; 3. a gas collection unit; 31. an oxygen collection unit; 32. a combustible gas collection unit; 33. a toxic gas collection unit; 4. an alarm output unit; 41. a vibration alarm circuit; 42. an audible and visual alarm circuit; 5. a power supply unit; 51. a charging circuit; 52. a power management circuit; 6. a human-computer interaction unit; 61. a display circuit; 62. a key circuit; 7. a communication interface identification unit; 71. an interface selection circuit; 72. a USB interface; 73. an RS232 interface; 74. a Bluetooth interface; 8. a wireless communication unit; 81. a GPRS circuit; 82. a ZigBee circuit; 9. a storage unit; 91. a Micro SD card circuit; 92. a FLASH circuit; 93. a chip memory circuit.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.

The technical solution of the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

Fig. 1 to 16 show a preferred embodiment of the present invention.

Referring to fig. 1, the portable alarm analyzer for gesture recognition and gas detection provided in this embodiment includes a MCU1, a gesture collection unit 2 connected to a MCU1, a gas collection unit 3, and an alarm output unit 4, where the gesture collection unit 2 is configured to collect a current gesture of the alarm analyzer, the gas collection unit 3 is configured to collect a currently required detection gas, the gesture collection unit 2 transmits a collected gesture signal of the alarm analyzer to the MCU1, the gas collection unit 3 transmits a collected detection gas signal to the MCU1, the MCU1 analyzes the gesture signal and the detection gas signal, if a value of the gesture signal exceeds a specified range, the MCU1 transmits an alarm signal to the alarm output unit 4, or if a value of the detection gas signal exceeds the specified range, the MCU1 transmits an alarm signal to the alarm output unit 4, or a value obtained by combining the gesture signal and the detection gas signal exceeds the specified range, the MCU1 sends an alarm signal to the alarm output unit 4, and the alarm output unit 4 outputs an audible and visual alarm or a vibration alarm according to the received alarm signals of different levels.

According to the portable alarm analyzer for posture recognition and gas detection, a posture acquisition unit 2 transmits acquired posture signals of the alarm analyzer to an MCU1, a gas acquisition unit 3 transmits acquired detection gas signals to an MCU1, the MCU1 analyzes the posture signals and the detection gas signals, if the numerical values of the posture signals exceed a specified range, the MCU1 transmits alarm signals to an alarm output unit 4, or the numerical values of the detection gas signals exceed the specified range, the MCU1 transmits alarm signals to the alarm output unit 4, or the numerical values of the posture signals combined with the detection gas signals exceed the specified range, the MCU1 transmits the alarm signals to the alarm output unit 4, and the alarm output unit 4 outputs sound alarm, light alarm or vibration alarm according to the received alarm signals of different levels; the gas detection device has the functions of gesture recognition and gas detection, so that the alarm can be given when an accident happens to an operator by detecting the motion track of the operator and the concentration of gas.

As an embodiment of the present invention, referring to fig. 2, the posture-acquiring unit 2 includes a gyro chip U31, resistors R8, R16, R83, R147, R148, and R151, capacitors C99, C100, C101, and C102; the gyroscope chip U31 is used for acquiring current attitude signals of the alarm analyzer, including angular velocity and acceleration; pin 1 and pin 25 of gyro chip U31 are connected and then grounded, pin 8 of gyro chip U31 is connected to one end of capacitor C101, pin 10 of gyro chip U31 is connected to one end of resistor R8, pin 11 of gyro chip U31 is connected to one end of capacitor C102, the other end of capacitor C101, the other end of resistor R8 and the other end of capacitor C102 are connected and then grounded, pin 12 of gyro chip U31 is connected to one end of resistor R16, the other end of resistor R16 is connected to a terminal, pin 13 of gyro chip 31 is connected to circuit voltage 3.3V and one end of capacitor C100 respectively, the other end of capacitor C100 is grounded, pin 18 of gyro chip U31 is grounded, pin 21 of gyro chip U31 is connected to one end of capacitor C99, the other end of capacitor C99 is grounded, pin 23 of gyro chip U31 is connected to one end of resistor R147, the other end of resistor R147 is connected to clock line interface 148 of MCU1 and one end of resistor R148 respectively, the pin 24 of the gyroscope chip U31 is connected with one end of a resistor R83, the other end of the resistor R83 is respectively connected with the data line interface SDA of the MCU1 and one end of a resistor R151, and the other end of the resistor R148 and the other end of the resistor R151 are connected with the circuit voltage of 3.3V.

Referring to fig. 1, the gas collection unit 3 includes an oxygen collection unit 31, a combustible gas collection unit 323, and a toxic gas collection unit 333, wherein the oxygen collection unit 31 is configured to collect oxygen concentrations in the test gas, the combustible gas collection unit 323 is configured to collect two combustible gas concentrations in the test gas, and the toxic gas collection unit 333 is configured to collect six toxic gas concentrations in the test gas.

Specifically, referring to fig. 3, the oxygen collection unit 31 includes operational amplifiers U611 and U612, a transistor Q2, capacitors C4 and C58, resistors R13, R15, R25, R27, R54, R124, and R163; the non-inverting input end of the operational amplifier U611 is grounded, the output end of the operational amplifier U611 is connected with one end of a resistor R13 and then connected with the inverting input end of the operational amplifier U611 and then connected with the base of a triode Q2, the collector of the triode Q2 is connected with one end of a resistor R54, the other end of the resistor R54 is connected with the power voltage of 3.3V, the emitter of the triode Q2 is respectively connected with one end of a resistor R15 and one end of a resistor R25, the other end of the resistor 15 is respectively connected with one end of the resistor R27 and one end of a capacitor C4, one end of the resistor R163 and the inverting input end of the operational amplifier U612, the other end of the resistor R27 is connected with one end of the resistor R124, the other end of the resistor R124 is grounded, the other end of the capacitor C4 is connected with the other end of the resistor R163 and then is respectively connected with the output end of the operational amplifier U612 and one end of the capacitor C58, the other end of the capacitor C58 is grounded, and the other end of the resistor R25 is connected with the other end of the resistor R13 and then is connected with the non-inverting input end of the operational amplifier U612.

Specifically, referring to fig. 4, the combustible gas collection unit 323 includes operational amplifiers U61, U62, U28, and U29, resistors R1, R2, R3, R4, R206, R207, R208, and R209, a capacitor C5; one end of the resistor R1 is respectively connected with the terminal and the input cathode of the first combustible gas, the other end of the resistor R1 is respectively connected with one end of the resistor R2 and the non-inverting input end of the operational amplifier U61, the other end of the resistor R2 is grounded, and the inverting input end of the operational amplifier U61 is connected with the output end and then connected with the output cathode of the first combustible gas; one end of a resistor R3 is respectively connected with a terminal and a first combustible gas input anode, the other end of a resistor R3 is respectively connected with one end of a resistor R4 and a non-inverting input end of an operational amplifier U62, the other end of the resistor R4 is connected with a negative power supply of the operational amplifier U62 and then grounded, an inverting input end of the operational amplifier U62 is connected with an output end and then connected with a first combustible gas output anode, a positive power supply of the operational amplifier U62 is respectively connected with a power supply voltage of 3.3V and one end of a capacitor C5, and the other end of a capacitor C5 is grounded; one end of the resistor R206 is respectively connected with the terminal and the input cathode of the second combustible gas, the other end of the resistor R206 is respectively connected with one end of the resistor R209 and the non-inverting input end of the operational amplifier U28, the other end of the resistor R209 is grounded, and the inverting input end of the operational amplifier U28 is connected with the output end and then is respectively connected with the terminal and the output cathode of the second combustible gas; one end of the resistor R207 is respectively connected with the terminal and the input anode of the second combustible gas, the other end of the resistor R207 is respectively connected with one end of the resistor R208 and the non-inverting input end of the operational amplifier U29, the other end of the resistor R208 is grounded, and the inverting input end of the operational amplifier U29 is connected with the output end and then is respectively connected with the terminal and the output anode of the second combustible gas.

Specifically, referring to fig. 5, the toxic gas collecting unit 333 includes a polarity switch U20, an operational amplifier U71, an operational amplifier U72, an operational amplifier U73, a transistor Q3, a capacitor C9, a capacitor C10, a capacitor C23, a capacitor C59, a capacitor C60, a resistor R31, a resistor R33, a resistor R55, a resistor R214, a resistor R215, a resistor R30, a resistor R44, a resistor R63, a resistor R50, a resistor R51, a resistor R161, a polarity switch U19, an operational amplifier U51, a transistor Q51, a capacitor C51, a resistor R216, a resistor R217, a resistor R51, a resistor U51, a capacitor C51, a capacitor U51, a capacitor, A capacitor C63, a capacitor C64, a capacitor C65, a resistor R38, a resistor R84, a resistor R20, a resistor R57, a resistor R117, a resistor R58, a resistor R164, a resistor R96, a resistor R116, a polarity-switching switch U34, an operational amplifier U281, an operational amplifier U282, an operational amplifier U283, an NMOS transistor Q18, a capacitor C83, a capacitor C84, a capacitor C88, a resistor R172, a resistor R174, a resistor R175, a resistor R176, a resistor R177, a resistor R182, a resistor R184, a resistor R185, a resistor R188, a polarity-switching switch U35, an operational amplifier U291, an operational amplifier U292, an operational amplifier U293, a triode Q23, a capacitor C85, a capacitor C86, a capacitor C89, a resistor R173, a resistor R178, a resistor R179, a resistor R180, a resistor R181, a resistor R186, a resistor R189, a resistor R183, a polarity-switching switch U89, a capacitor U89, an operational amplifier U89, a capacitor C363672, a, The circuit comprises a capacitor C68, a resistor R5, a resistor R6, a resistor R7, a resistor R41, a resistor R61, a resistor R74, a resistor R75, a resistor R76 and a resistor R165;

one end of the resistor R214 is connected with the power supply voltage of 3.3V, the connection point of the other end of the resistor R214 and one end of the resistor R215 is respectively connected with one end of the resistor R30 and the non-inverting input end of the operational amplifier U73, the other end of the resistor R215 is grounded, the inverting input end of the operational amplifier U73 is connected with one end of the resistor R31, the output end of the operational amplifier U73 is connected with one end of the capacitor C23, the other end of the capacitor C23 is connected with the other end of the resistor R31 and then connected with one end of the resistor R33, the other end of the resistor R33 is connected with the base of the triode Q3, the collector of the triode Q3 is connected with one end of the resistor R55, the other end of the resistor R55 is connected with the power supply voltage of 3.3V, the emitter of the triode Q3 is connected with one end of the resistor R51, the other end of the resistor R51 is respectively connected with one end of the capacitor C10, one end of the resistor R161 and the inverting input end of the, the other end of the resistor R30 is respectively connected with a second input end of a polarity switch U20 and an inverting input end of an operational amplifier U71, a non-inverting input end of the operational amplifier U71 is respectively connected with one end of a resistor R44 and one end of a resistor R63, the other end of the resistor R63 is grounded, the other end of the resistor R44 is respectively connected with a power voltage of 3.3V, one end of a resistor R45 and one end of a resistor R57, a negative power source of the operational amplifier U71 is grounded, a positive power source of the operational amplifier U71 is respectively connected with the power voltage of 3.3V and one end of a capacitor C9, the other end of the capacitor C9 is grounded, an output end of the operational amplifier U71 is connected with one end of the resistor R50, the other end of the resistor R50 is connected with a non-inverting input end of the operational amplifier U72, a first output end of the polarity switch U20 is connected with one end of a capacitor C59 and then connected with a first toxic gas signal channel anode, a second output end, the other end of the capacitor C59 and the other end of the capacitor C60 are respectively grounded;

one end of the resistor R216 is connected with the power supply voltage of 3.3V, the connection point of the other end of the resistor R216 and one end of the resistor R217 is respectively connected with one end of the resistor R37 and the non-inverting input end of the operational amplifier U53, the other end of the resistor R217 is grounded, the inverting input end of the operational amplifier U53 is connected with one end of the resistor R32, the output end of the operational amplifier U53 is connected with one end of the capacitor C24, the other end of the capacitor C24 is connected with the other end of the resistor R32 and then connected with one end of the resistor R34, the other end of the resistor R34 is connected with the base of the triode Q4, the collector of the triode Q4 is connected with one end of the resistor R56, the other end of the resistor R56 is connected with the power supply voltage of 3.3V, the emitter of the triode Q4 is connected with one end of the resistor R53, the other end of the resistor R53 is respectively connected with one end of the capacitor C16, one end of the resistor R162 and the inverting input end of the, the other end of the resistor R37 is respectively connected with a second input end of a polarity switch U19 and an inverting input end of an operational amplifier U51, a non-inverting input end of the operational amplifier U51 is respectively connected with the other end of a resistor R45 and one end of a resistor R64, the other end of the resistor R64 is grounded, a negative power supply of the operational amplifier U51 is grounded, a positive power supply of the operational amplifier U51 is respectively connected with a power supply voltage of 3.3V and one end of a capacitor C15, the other end of the capacitor C15 is grounded, an output end of the operational amplifier U51 is connected with one end of a resistor R52, the other end of the resistor R52 is connected with a non-inverting input end of an operational amplifier U52, a first output end of the polarity switch U19 is connected with one end of the capacitor C61 and then connected with a positive electrode of a second toxic gas signal channel, a second output end of the polarity switch U19 is connected with one end of the capacitor C62 and then connected with;

one end of the resistor R172 is connected with the power supply voltage 3.3V, the other end of the resistor R172 is respectively connected with one end of the resistor R182 and one end of the non-inverting input end of the operational amplifier U281, the other end of the resistor R182 is grounded, the negative power supply of the operational amplifier U281 is grounded, the positive power supply of the operational amplifier U281 is respectively connected with the power supply voltage 3.3V and one end of the capacitor C83, the other end of the capacitor C83 is grounded, the inverting input end of the operational amplifier U281 is respectively connected with one end of the resistor R174 and the second input end of the polarity switch U34, the output end of the operational amplifier U281 is connected with one end of the resistor R184, the other end of the resistor R184 is connected with the non-inverting input end of the operational amplifier U282, the other end of the resistor R174 is connected with the non-inverting input end of the operational amplifier U283, the inverting input end of the operational amplifier U283 is connected with one end of the resistor R175, the, the other end of the resistor R176 is connected with the drain of an NMOS tube Q18, the gate of an NMOS tube Q18 is connected with one end of a resistor R188, the other end of the resistor R188 is connected with a power supply voltage of 3.3V, the source of the NMOS tube Q18 is connected with one end of a resistor R185, the other end of the resistor R185 is respectively connected with one end of a capacitor C84, one end of a resistor R177 and the inverting input end of an operational amplifier U282, the output end of the operational amplifier U282 is connected with the other end of a capacitor C84 and the other end of the resistor R177 and then connected with the first input end of a polarity switch U34, the first output end of the polarity switch U34 is connected with the positive electrode of a third toxic gas signal channel, and the second output end of the polarity switch U34;

one end of a resistor R173 is connected with a power supply voltage of 3.3V, the other end of the resistor R173 is respectively connected with one end of a resistor R183 and a non-inverting input end of an operational amplifier U291, the other end of the resistor R183 is grounded, a negative power supply of the operational amplifier U291 is grounded, a positive power supply of the operational amplifier U291 is respectively connected with the power supply voltage of 3.3V and one end of a capacitor C85, the other end of a capacitor C85 is grounded, an inverting input end of the operational amplifier U291 is respectively connected with one end of a resistor R178 and a second input end of a polarity switch U35, an output end of the operational amplifier U291 is connected with one end of a resistor R186, the other end of the resistor R186 is connected with a non-inverting input end of the operational amplifier U292, the other end of a resistor R178 is connected with a non-inverting input end of the operational amplifier U293, an inverting input end of the operational amplifier U293 is connected with one end of a resistor R179, an output, the other end of the resistor R180 is connected with a base electrode of the triode Q23, a collector electrode of the triode Q23 is connected with one end of the resistor R189, the other end of the resistor R189 is connected with the power supply voltage of 3.3V, an emitter electrode of the triode Q23 is connected with one end of the resistor R187, the other end of the resistor R187 is respectively connected with one end of the capacitor C86, one end of the resistor R181 and an inverting input end of the operational amplifier U292, an output end of the operational amplifier U292 is connected with the other end of the capacitor C86 and the other end of the resistor R181 and then connected with a first input end of the polarity switch U35, a first output end of the polarity switch U35 is connected with a positive electrode of a fourth toxic gas signal channel, and a second output end of the polarity switch;

one end of a resistor R41 is connected with a power supply voltage of 3.3V, the other end of the resistor R41 is respectively connected with one end of a resistor R76 and a non-inverting input end of an operational amplifier U5, the other end of the resistor R76 is grounded, an inverting input end of an operational amplifier U5 is respectively connected with one end of a resistor R5 and a second input end of a polarity switch U27, an output end of an operational amplifier U5 is connected with one end of a resistor R61, the other end of the resistor R61 is connected with a non-inverting input end of an operational amplifier U25, the other end of a resistor R5 is connected with a non-inverting input end of an operational amplifier U7, an inverting input end of an operational amplifier U7 is connected with one end of a resistor R6, an output end of an operational amplifier U7 is connected with one end of a capacitor C67, the other end of a capacitor C67 is respectively connected with the other end of a resistor R6 and one end of a resistor R7, the other end of a resistor R7 is connected, an emitter of the triode Q9 is connected with one end of a resistor R74, the other end of the resistor R74 is connected with one end of a capacitor C50, one end of a resistor R165 and an inverting input end of an operational amplifier U25, an output end of the operational amplifier U25 is connected with the other end of the capacitor C50 and the other end of the resistor R165 and then connected with a first input end of a polarity switch U27, a first output end of the polarity switch U27 is connected with one end of a capacitor C68 and then connected with a positive electrode of a fifth toxic gas signal channel, a second output end of the polarity switch U27 is connected with one end of a capacitor C51 and then connected with a negative electrode of the fifth toxic gas signal channel, and the other end of the capacitor C68 and the other end of the capacitor C685;

the other end of the resistor R57 is respectively connected with one end of the resistor R117 and the non-inverting input end of the operational amplifier U251, the other end of the resistor R117 is grounded, the negative power supply of the operational amplifier U251 is grounded, the positive power supply of the operational amplifier U251 is respectively connected with the power supply voltage of 3.3V and one end of the capacitor C56, the other end of the capacitor C56 is grounded, the inverting input end of the operational amplifier U251 is respectively connected with one end of the resistor R20 and the second input end of the polarity switch U26, the output end of the operational amplifier U251 is connected with one end of the resistor R58, the other end of the resistor R58 is connected with the non-inverting input end of the operational amplifier U252, the other end of the resistor R20 is connected with the non-inverting input end of the operational amplifier U253, the inverting input end of the operational amplifier U253 is connected with one end of the resistor R84, the output end of the operational amplifier U253 is connected, the other end of the resistor R38 is connected with the base of the triode Q16, the collector of the triode Q16 is connected with one end of the resistor R116, the other end of the resistor R116 is connected with the power voltage of 3.3V, the emitter of the triode Q16 is connected with one end of the resistor R96, the other end of the resistor R96 is respectively connected with one end of the capacitor C57, one end of the resistor R164 and the inverting input end of the operational amplifier U252, the output end of the operational amplifier U252 is connected with the other end of the capacitor C57 and the other end of the resistor R164 and then connected with the first input end of the polarity switch U26, the first output end of the polarity switch U26 is connected with one end of the capacitor C63 and then connected with the positive electrode of the sixth toxic gas signal channel, the second output end of the polarity switch U26 is connected with one end of the capacitor C64 and then connected with the negative electrode of the sixth toxic gas signal.

Referring to fig. 1, the alarm analyzer further includes a power supply unit 5 connected to the MCU1, a communication interface recognition unit 7, a wireless communication unit 8, a storage unit 9, and a human-computer interaction unit 6, where the power supply unit 5 is configured to provide operating power for the alarm analyzer, the communication interface recognition unit is configured to connect the alarm analyzer to an external device for data interaction and export, the wireless communication unit 8 is configured to remotely transmit data to the alarm analyzer, the storage unit 9 is configured to store data in the alarm analyzer, and the human-computer interaction unit 6 is configured to perform human-computer interaction between a user and the alarm analyzer.

As an embodiment of the present invention, referring to fig. 1, the power supply unit 5 includes a charging circuit 51 and a power supply management circuit 52; the charging circuit 51 is used for charging the lithium battery of the alarm analyzer so as to enable the alarm analyzer to realize a portable working mode; the power management circuit 52 is used to provide a stable operating voltage for the alarm analyzer.

Specifically, referring to fig. 6, the charging circuit 51 includes a battery charging management chip U8, an adjustable resistor RP1, a transistor Q1, a zener diode D20, a light emitting diode D2, capacitors C1 and C2, resistors R17, R24, R26, R59, R60, and R123; a pin 1 of a battery charging management chip U8 is respectively connected with an emitter of a triode Q1 and one end of a resistor R59, the other end of the resistor R59 is respectively connected with a USB input power supply, one end of a resistor R123 and one end of a capacitor C1, a pin 2 of a battery charging management chip U8 is respectively connected with a cathode of a voltage stabilizing diode D20 and one end of a capacitor C2, one end of a capacitor C2 is also connected with an external charging power supply, the other end of the capacitor C2 is grounded, a pin 3 of the battery charging management chip U8 is connected with the other end of the resistor R123, a pin 4 of a battery charging management chip U8 is respectively connected with one end of a resistor R24, one end of an adjustable resistor RP1 and one end of a resistor R26, the other end of the resistor R24 is connected with the USB input power supply, a pin 5 of the battery charging management chip U5 is connected with an anode of a light emitting diode D2, a cathode of the light emitting diode D2 is connected with one end of a resistor R17, the other, the pin 6 of the battery charging management chip U8 is connected with the other end of the capacitor C1 and then grounded, the pin 7 of the battery charging management chip U8 is connected with one end of a resistor R60, the other end of the resistor R60 is connected with the base electrode of a triode Q1, the collector electrode of the triode Q1 is connected with the anode of a voltage stabilizing diode D20, and the pin 8 of the battery charging management chip U8 is connected with a USB input power supply.

Specifically, referring to fig. 7, the power management circuit 52 includes power management chips U1 and U2, a switch chip U23, magnetic core-carrying inductors L1, L2, L5, and L8, polarity capacitors E4, E5, and E2, capacitors C70, C77, C76, C75, C74, C71, and C3, resistors R115, R47, R140, R139, R42, R46, R138, R94, R68, R65, R11, R62, R95, and R48, a transistor Q10, diodes D4 and D15, a KEY8, a fuse F1; pin 1 of the power management chip U1 is connected to one end of a capacitor C78 and the anode of a polar capacitor E5, respectively, the other end of a capacitor C78 is connected to the negative electrode of the polar capacitor and then grounded, the anode of the polar capacitor E5 is connected to one end of a resistor R42 and one end of a capacitor C74, the other end of the capacitor C74 is grounded, one end of a capacitor C74 is connected to a power voltage 3.3V and a circuit voltage terminal, pin 1, pin 2 and pin 3 of the switch chip U23 are connected to the circuit voltage terminal and one end of a resistor R94, pin 4 of the switch chip U23 is connected to the other end of a resistor R94, one end of a resistor R68 and one end of a resistor R65, the other end of a resistor R68 is connected to one end of a capacitor C9, one end of a KEY8 and the other end of a resistor R65, the other end of a resistor R65 is connected to the collector of a transistor Q10 and the cathode of a diode D4, the anode of a diode D4 is connected to the power supply 8 and one end of a, the other end of the resistor R11 is connected with the circuit voltage of 3.3V, the base of the triode Q10 is respectively connected with one end of the resistor R95 and the cathode of the diode D15, the cathode of the diode D15 is also connected with one end of the resistor R62, the other end of the resistor R62 is connected with an external power supply, the anode of the diode D15 is connected with one end of the resistor R48, the other end of the resistor R48 is connected with the 3.3V output, the other end of the capacitor C47, the other end of the KEY8, the emitter of the triode Q10 and the other end of the resistor R95 are connected and then grounded, the pin 5, the pin 6, the pin 7 and the pin 8 of the switch chip U23 are respectively connected with the circuit voltage 3.3V and 3.3V terminals, one end of the inductor with magnetic core L8, one end of the inductor with magnetic core L5 and the connection point of one end of the capacitor C71, the other end of the capacitor C71 is grounded, the other end of the inductor with magnetic core L5 is respectively connected with, pin 2 of the power management chip U1 is connected with one end of the belt core inductor L1, pin 3 of the power management chip U1 is grounded, pin 4 of the power management chip U1 is connected with the other end of the belt core inductor U1, pin 5 of the power management chip U1 is connected with pin 6 and pin 8 of the power management chip U1, the positive electrode of the polar capacitor E2, one end of the capacitor C75, pin 5 of the power management chip U2 and one end of the fuse F1 respectively, the other end of the fuse F1 is connected with an external power supply, the other end of the capacitor C75 and the negative electrode of the polar capacitor E2 are connected and then grounded, pin 7 of the power management chip U1 is connected with one end of the resistor R138, the other end of the resistor R138 is grounded, pin 9 of the power management chip U1 is connected with one end of the resistor R46 and ground respectively, pin 10 of the power management chip U1 is connected with the other end of the resistor R42 and the other end of the resistor R39 46, pin 5 of power management chip U2 is further connected to pin 8 of power management chip U2 and one end of capacitor C76, respectively, the other end of capacitor C76 is grounded, pin 1 of power management chip U2 is connected to one end of capacitor C77, the positive electrode of polar capacitor E4, one end of resistor R115 and the 3.3V terminal of power supply, the 3.3V terminal of power supply is further connected to one end of capacitor C70, the other end of capacitor C70 is grounded, the other end of capacitor C77 is connected to the negative electrode of polar capacitor E4 and then grounded, pin 2 of power management chip U2 is connected to one end of tape core inductor L2, pin 3 of power management chip U2 is grounded, pin 4 of power management chip U2 is connected to the other end of tape core inductor L2, pin 6 of power management chip U2 is connected to one end of resistor R139, pin 7 of power management chip U2 is connected to one end of resistor R140, the other end of resistor R139 is connected to the other end of resistor R140 and then grounded, the pin 9 of the power management chip U2 is connected to ground and one end of the resistor R47, and the other end of the resistor R47 is connected to the pin 10 of the power management chip U2 and the other end of the resistor R115.

Referring to fig. 1, the communication interface recognition unit 7 includes an interface selection circuit 71, a USB interface 72, an RS232 interface 73, and a bluetooth interface 74; the interface selection circuit 71 is used for identifying the connection mode between the external device and the alarm analyzer through a USB interface 72, an RS232 interface 73 or a bluetooth interface 74, the USB interface 72 is used for connecting the alarm analyzer with the external device through the USB interface 72, the RS232 interface 73 is used for connecting the alarm analyzer with the external device through the RS232 interface 73, and the bluetooth interface 74 is used for connecting the alarm analyzer with the external device through the bluetooth interface 74.

Specifically, referring to fig. 8, the interface selection circuit 71 includes an analog switch and multiplexer U21, a capacitor C26, and a resistor R80; the analog switch and multiplexer U21 is used for switching the alarm analyzer to be connected with external equipment through different interfaces; the pin 1 of the analog switch and multiplexer U21 is connected with the input end of the USB interface 72, the analog switch and the pin 16 of the multiplexer U21 are connected with one end of a resistor R80, the analog switch and the pin 2 of the multiplexer U21 are connected with the other end of a resistor R80 and then are connected with the circuit voltage of 3.3V, the analog switch and the pin 3 of the multiplexer U21 are connected with a pin 15 and then are grounded, the analog switch and the pin 4 of the multiplexer U21 are connected with the data output end of an RS232 interface 73, the pin 5 of the analog switch and the multiplexer U21 is connected with a pin 7, the analog switch and the pin 8 of the multiplexer U21 are connected with the data output end of an MCU1, the pin 9 of the analog switch and the multiplexer U21 is connected with the data input end of the MCU1, the pin 10 of the analog switch and the multiplexer U21 is connected with a pin 12, the analog switch and the pin 11 of the multiplexer U21 are connected with, the analog switch and the multiplexer U21 are connected with a pin 6 of the Bluetooth interface 74, the analog switch and the multiplexer U21 are connected with a pin 13 of the RS232 interface 73, the analog switch and the multiplexer U21 are respectively connected with a circuit voltage of 3.3V and one end of a capacitor C26, and the other end of the capacitor C26 is grounded;

when the level of the pin 1 of the analog switch and multiplexer U21 is 1, and the level of the pin 16 of the analog switch and multiplexer U21 is 0, the interface selection circuit 71 selects an external device to connect with the alarm analyzer through the bluetooth interface 74;

when the level of the pin 1 of the analog switch and multiplexer U21 is 1, and the level of the pin 16 of the analog switch and multiplexer U21 is 1, the interface selection circuit 71 selects the external device to be connected with the alarm analyzer through the USB interface 72;

when the level of the pin 1 of the analog switch and multiplexer U21 is 0, and the level of the pin 16 of the analog switch and multiplexer U21 is 0, the interface selection circuit 71 selects an external device to connect with the alarm analyzer through the RS232 interface 73;

when the level of the pin 1 of the analog switch and multiplexer U21 is 0, the level of the pin 16 of the analog switch and multiplexer U21 is 1, and the interface selection circuit 71 selects an external device to be connected with the alarm analyzer through the USB interface 72 and the RS232 interface 73.

Specifically, referring to fig. 9, the USB interface 72 includes an interface conversion chip U10, magnetic core inductors L6 and L13, a polar capacitor E1, triodes Q19, Q20, Q21, and Q22, voltage dependent resistors R131, R132, and R133, a socket J1, resistors R125, R126, R127, R129, and R130, and capacitors C6 and C7; the interface conversion chip U10 realizes the conversion from USB to serial UART interface, and can also convert to synchronous and asynchronous Bit-Bang interface mode; pin 1 of socket J1 is connected to the USB power supply, one end of varistor R133 and the positive pole of polar capacitor E1, pin 2 of socket J1 is connected to one end of varistor R132, pin 3 of socket J1 is connected to one end of varistor R131, pin 5 of socket J1 is grounded, the other end of varistor R131, the other end of varistor R132, the other end of varistor R133 and the negative pole of polar capacitor, pin 8 and pin 9 of socket J1 are connected to one end of iron core inductor L13, and the other end of iron core inductor L13 is grounded; pin 1 of the interface conversion chip U10 is a data output terminal, pin 5 of the interface conversion chip U10 is a data input terminal, pin 4 of the interface conversion chip U10 is connected to a 3.3V output, pin 16 of the interface conversion chip U10 is connected to a negative terminal of a USB data line, pin 15 of the interface conversion chip U10 is connected to a positive terminal of the USB data line, pin 25, pin 7, pin 18, pin 21 and pin 26 of the interface conversion chip U10 are connected, pin 20 of the interface conversion chip U10 is connected to one end of the iron core inductor L6 and one end of the capacitor C6 respectively, the other end of the capacitor C6 is grounded, the other end of the iron core inductor L6 is connected to a USB input power supply, pin 17 of the interface conversion chip U10 is connected to one end of the capacitor C7, and the other end of the capacitor C7 is; one end of the resistor R125 is connected with a data output end of the MCU1, the other end of the resistor R125 is connected with a base electrode of the triode Q19, the emitter electrodes of the triode Q19 and the triode Q20 are connected and then grounded, a collector electrode of the triode Q19 is respectively connected with one end of the resistor R127 and a base electrode of the triode Q20, the other end of the resistor R127 is connected with one end of the resistor R129 and then connected with a 3.3V output, and the other end of the resistor R129 is connected with a collector electrode of the triode Q20 and then connected with a data input end of the interface conversion chip U39; one end of the resistor R126 is connected with a data output end of the interface conversion chip U10, the other end of the resistor R126 is connected with a base electrode of the triode Q21, a collector electrode of the triode Q21 is connected with a collector electrode of the triode Q22 and then grounded, an emitter electrode of the triode Q21 is respectively connected with one end of the resistor R128 and a base electrode of the triode Q22, the other end of the resistor R128 is connected with one end of the resistor R130 and then connected with the circuit voltage of 3.3V, and the other end of the resistor R130 is connected with an emitter electrode of the triode Q22 and then connected with a data input end of.

Specifically, referring to fig. 10, the RS232 interface 73 includes a transceiver U15, a guard terminal U22, an RS232 port J11, capacitors C27, C28, C29, C30, and C31; the transceiver U15 is an RS232 driving chip, and the protection end U22 is used for avoiding damage of surge current to an RS232 port; pin 1 of the RS232 port J11 is connected with pin 3 of the protection end U22 and then grounded, pin 2 of the RS232 port J11 is connected with pin 2 of the protection end U22, pin 3 of the RS232 port J11 is connected with pin 1 of the protection end U22, and pin 4 of the RS232 port J11 is connected with a 232 data transmission end of the MCU 1; pin 1 of the transceiver U15 is connected to one end of a capacitor C28, pin 3 of the transceiver U15 is connected to the other end of a capacitor C28, pin 2 of the transceiver U15 is connected to one end of a capacitor C29, the other end of the capacitor C29 is connected to the circuit voltage 3.3V, pin 4 of the transceiver U15 is connected to one end of a capacitor C30, pin 5 of the transceiver U15 is connected to the other end of a capacitor C30, pin 6 of the transceiver U15 is connected to one end of a capacitor C31, the other end of the capacitor C31 is grounded, pin 11 of the transceiver U15 is connected to the 232 data transmitting terminal of the MCU1, pin 12 of the transceiver U15 is connected to the 232 data receiving terminal of the MCU1, pin 13 of the transceiver U15 is connected to the data receiving terminal of the MCU1, pin 14 of the transceiver U15 is connected to the data transmitting terminal of the MCU1, pin 15 of the transceiver U1 is grounded, and pin 16 of the transceiver U1 is connected to the circuit voltage 3.3V and the other end of the capacitor.

Specifically, referring to fig. 11, the bluetooth interface 74 includes a bluetooth module U16, capacitors C18 and C180; pin 1 of bluetooth module U16 connects the bluetooth data transmitting terminal of MCU1, pin 2 of bluetooth module U16 connects the bluetooth data receiving terminal of MCU1, pin 10 of bluetooth module U16 connects the network end of MCU1, pin 12 of bluetooth module U16 connects the one end of electric capacity C180 and the one end of electric capacity C18 respectively, the one end of electric capacity C18 still connects circuit voltage 3.3V, the other end of electric capacity C18 and the other end of electric capacity C180 ground respectively, pin 13 of bluetooth module U16 ground, pin 21 of bluetooth module U16 ground, pin 22 of bluetooth module U16 ground, pin 33 of bluetooth module U16 connects the connection status end of MCU 1.

As an embodiment of the present invention, referring to fig. 1, the wireless communication unit 8 includes a GPRS circuit 81 and a ZigBee circuit 82; the GPRS circuit 81 is used for data transmission of the alarm analyzer in a GPRS mode, and the ZigBee circuit 82 is used for data transmission of the alarm analyzer in a ZigBee mode.

Specifically, referring to fig. 12, the GPRS circuit 81 includes a GPRS module J17, a switch chip U30, a transistor Q24, a capacitor C90, resistors R153, R154, R155, R156, R200, R201, R202, R204, and R205; pin 1 of the GPRS module J11 is connected to one end of a resistor R153, the other end of the resistor R153 is connected to a 232 data receiving terminal of the MCU1, pin 2 of the GPRS module J11 is connected to one end of a resistor R154, the other end of the resistor R154 is connected to a 232 data transmitting terminal of the MCU1, pin 3 of the GPRS module J11 is grounded, pin 5 and pin 6 of the GPRS module J11 are connected to circuit voltage, pin 7 of the GPRS module J11 is connected to one end of the resistor R156, and the other end of the resistor R156 is connected to circuit voltage 3.3V; the terminal 1, the terminal 2 and the terminal 3 of the switch chip U30 are connected and then respectively connected with one end of a resistor R200, one end of a resistor R201 and one end of a resistor R204, the other end of the resistor R200 is connected with circuit voltage 5V, the other end of a resistor R210 is connected with a sensor power supply, the other end of the resistor R204 is respectively connected with a collector of a triode Q24 and a terminal 4 of a switch chip U30, a base of a triode Q24 is respectively connected with one end of a resistor R205 and one end of a resistor R203, the other end of the resistor R205 is connected with a GPRS power supply, the other end of the resistor R203 is connected with an emitter of a triode Q24 and then grounded, the terminal 5, the terminal 6, the terminal 7 and the terminal 8 of the switch chip U30 are connected and then connected with one end of a resistor R202, the other end of the resistor R202 is respectively connected.

Specifically, referring to fig. 13, the ZigBee circuit 82 includes a ZigBee communication module U17, pin 1 of the ZigBee communication module U17 is connected to the circuit voltage 3.3V, pin 2 of the ZigBee communication module U17 is connected to the bluetooth data transmitting terminal of the MCU1, pin 3 of the ZigBee communication module U17 is connected to the bluetooth data receiving terminal of the MCU1, pin 4 of the ZigBee communication module U17 is connected to the network terminal of the MCU1, pin 5 of the ZigBee communication module U17 is connected to the connection state terminal of the MCU1, and pin 6 of the ZigBee communication module U17 is grounded.

Referring to fig. 1, the storage unit 9 includes a Micro SD card circuit 91, a FLASH circuit 92, and a chip storage circuit 93, where the Micro SD card circuit 91 is used to store data in a Micro SD card manner, the FLASH circuit 92 is used to store data in a FLASH manner, and the chip storage circuit 93 is used to store data in a large-capacity chip manner.

Specifically, referring to FIG. 14, the Micro SD card circuit 91 includes a connector U18, a capacitor C36, resistors R100, R101, R102 and R108; pin 9 and pin 11 of connector U18 are connected and then grounded, pin 10 and pin 12 of connector U18 are connected and then grounded, pin 3 of connector U18 is connected with one end of resistor R101, pin 5 of connector U18 is connected with one end of resistor R100, pin 7 of connector U18 is connected with one end of resistor R108, the other end of resistor R101, the other end of resistor R100 and the other end of resistor R108 are connected and then circuit voltage 3.3V, pin 6 of connector U18 is grounded, pin 4 of connector U18 is connected with circuit voltage 3.3V and one end of capacitor C36 respectively, the other end of capacitor C36 is grounded, pin 2 of connector U18 is connected with SD card data terminal of MCU1 and resistor R102 respectively, and the other end of resistor R102 is connected with circuit voltage 3.3V.

Specifically, referring to fig. 14, the FLASH circuit 92 includes a memory chip U14, resistors R106, R107, and R143; pin 1 of the memory chip U14 is connected to one end of the resistor R107, pin 8 of the memory chip U14 is connected to the other end of the resistor R107, the circuit voltage is 3.3V and one end of the resistor R106, pin 7 of the memory chip U14 is connected to the other end of the resistor R106, pin 4 of the memory chip U14 is grounded, pin 5 of the memory chip U14 is connected to the FLASH signal line output terminal, pin 6 of the memory chip U14 is connected to the clock line, pin 2 of the memory chip U14 is connected to the FLASH signal line input terminal, pin 3 of the memory chip U14 is connected to one end of the resistor R143, and the other end of the resistor R143 is grounded.

Specifically, referring to fig. 14, the chip memory circuit 93 includes mass memory chips U11 and U12, capacitors C34 and C35, resistors R39 and R144; pin 1 and pin 2 of the large-capacity memory chip U11 are connected and then grounded, pin 3 of the large-capacity memory chip U11 is connected with the circuit voltage of 3.3V, pin 4 of the large-capacity memory chip U11 is grounded, pin 5 of the large-capacity memory chip U11 is connected with the data line of the MCU1, pin 6 of the large-capacity memory chip U11 is connected with the control line of the MCU1, pin 7 of the large-capacity memory chip U11 is connected with one end of a resistor R144, the other end of the resistor R144 is connected with the circuit voltage of 3.3V, pin 8 of the large-capacity memory chip U11 is respectively connected with the circuit voltage of 3.3V and one end of a capacitor C35, and the other end of;

pin 1 of the mass storage chip U12 is connected with one end of a resistor R39, pin 8 of the mass storage chip U11 is connected with the other end of the resistor R39, one end of a circuit voltage 3.3V and one end of a capacitor C34 respectively, the other end of the capacitor C34 is grounded, pin 3 of the mass storage chip U11 is connected with the circuit voltage 3.3V, pin 4 of the mass storage chip U11 is grounded, pin 5 of the mass storage chip U11 is connected with a data line of the MCU1, pin 6 of the mass storage chip U11 is connected with a control line of the MCU1, and pin 7 of the mass storage chip U11 is connected with a terminal of the MCU 1.

Referring to fig. 1, the human-computer interaction unit 6 includes a display circuit 61 and a key circuit 62, the display circuit 61 is a high-definition liquid crystal display, and the key circuit 62 is used for operating the alarm analyzer by pressing a key.

Specifically, referring to fig. 15, the KEY circuit 62 includes KEYs KEY1, KEY2, KEY3, KEY4, KEY5, KEY6, and KEY7, resistors R86, R87, R88, R89, R90, R91, and R92; one end of a KEY1, one end of a KEY2, one end of a KEY3, one end of a KEY4, one end of a KEY5, one end of a KEY6, and one end of a KEY7 are connected and then grounded, the other end of the KEY1 is connected to one end of a resistor R86, the other end of the KEY2 is connected to one end of a resistor R87, the other end of the KEY3 is connected to one end of a resistor R88, the other end of the KEY4 is connected to one end of a resistor R89, the other end of the KEY5 is connected to one end of a resistor R90, the other end of the KEY6 is connected to one end of a resistor R91, the other end of the KEY7 is connected to one end of a resistor R92, the other end of the resistor R86, the other end of a resistor R87, the other end of a resistor R88, the other end of the resistor R89, the other end of the resistor R90, the other end of the resistor R91, and the other end of the resistor R92 are.

Referring to fig. 1, the alarm output unit 4 includes a vibration alarm circuit 41 and an acousto-optic alarm circuit 42, the vibration alarm circuit 41 is used for giving an alarm by a vibration mode, and the acousto-optic alarm circuit 42 is used for giving an alarm by a sound and light mode.

Specifically, referring to fig. 16, the shock alarm circuit 41 includes a transistor Q6, resistors R21 and R69; the collector of the triode Q6 is connected with the vibration motor, the base of the triode Q6 is respectively connected with one end of the resistor R21 and one end of the resistor R69, the other end of the resistor R69 is connected with the emitter of the triode Q6 and then grounded, and the other end of the resistor R21 is connected with the vibration alarm signal of the MCU 1.

Specifically, referring to fig. 16, the acousto-optic alarm circuit 42 includes a buzzer SP2, triodes Q8, Q14, Q15, Q11, Q12 and Q13, a polar capacitor E13, resistors R23, R43, R118, R110, R112, R113, R109, R111, R114, R28, R18, R97, R98, R99 and R136, light emitting diodes D3, D11, D12, D13, D14, D1, D5 and D6, three-color light emitting diodes D8 and D10; one end of a resistor R28 is connected with an audio alarm signal of the MCU1, the other end of the resistor R28 is connected with a base of a triode Q12, an emitter of the triode Q12 is grounded, a collector of the triode Q12 is respectively connected with one end of a resistor R99 and one end of a buzzer SP2, the other end of a resistor R99 is connected with the other end of the buzzer SP2 and one end of a resistor R98 and then connected with one end of a resistor R97, the other end of the resistor R97 is connected with an anode of a polar capacitor E13, a cathode of the polar capacitor E13 is respectively connected with one end of a resistor R136 and an emitter of a triode Q11, an emitter of the triode Q11 is also grounded, a base of the triode Q11 is connected with one end of the resistor R11, the other end of the resistor R11 is connected with an illumination alarm signal of the MCU 11, a collector of the resistor R11 and the other end of the resistor R36136 are respectively connected with one end of the collector of the triode Q11 and then connected with a collector of the triode Q365V voltage V365, the collector of the triode Q3 is connected with the other end of the resistor R98; pin 1 of tristimulus led D8, pin 1 of tristimulus led D10, the anode of led D3, the anode of led D11, the anode of led D12, the anode of led D13, the anode of led D14, the anode of led D1, the anode of led D5 and the anode of led D6 are connected to a rear circuit voltage of 5V, pin 4 of tristimulus led D8 and pin 4 of tristimulus led D10 are connected to a rear end of a resistor R109, the other end of the resistor R109 is connected to the collector of a transistor Q14, the emitter of the transistor Q14 is connected to one end of a resistor R111 and then grounded, the base of the transistor Q14 is connected to the other end of the resistor R111 and one end of a resistor R114, the other MCU of the resistor R114 is connected to a green light control signal of 1, pin 2 of tristimulus D8 and one end of pin 2 of tristimulus led D10 are connected to a rear end of the resistor R110, the other end of the resistor R110 is connected with the collector of a triode Q15, the emitter of the triode Q15 is connected with one end of the resistor R112 and then grounded, the base of the triode Q15 is respectively connected with the other end of the resistor R112 and one end of the resistor R113, the other end of the resistor R113 is connected with the yellow light control signal of the MCU1, the pin 3 of the three-color LED D8, the pin 3 of the three-color LED D10, the cathode of the LED D3, the cathode of the LED D11, the cathode of the LED D12, the cathode of the LED D13, the cathode of the LED D14, the cathode of the LED D1, the cathode of the LED D5 and the cathode of the LED D6 are connected with one end of a rear resistor R118, the other end of the resistor R118 is connected with the collector of a triode Q8, the emitter of the triode Q8 is connected with one end of the resistor R43 and then grounded, the base of the triode Q8 is respectively connected with one end, the other end of the resistor R23 is connected with the blue light control signal of the MCU 1.

The embodiments of the present invention have been described in detail, but the invention is not limited to the embodiments, and those skilled in the art can make many equivalent modifications or substitutions without departing from the spirit of the present invention, and the equivalents or substitutions are included in the scope of protection defined by the claims of the present application.

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