阅读说明：本技术 智能拐杖振动信号测量电路 (Intelligent walking stick vibration signal measuring circuit ) 是由 熊浩 温长康 胡鹏 张洋 杨津听 于 2019-11-23 设计创作，主要内容包括：本发明提供智能拐杖振动信号测量电路,其包括电阻R1(1)、电阻R4(2)、电阻R5(3)、比较器U1(4)、电阻R6(5)、与门U2(6)、电阻R2(7)、电容C1(8)、复合三极管Q1(9)、可控硅Q2(10)、电容C2(11)、电阻R3(12)、电阻R7(13)。本发明当智能拐杖跌落时,振动信号经过电阻R2(7)、电容C1(8)、电容C2(11)滤波将频率10Hz左右的信号传输给复合三极管Q1(9)放大之后与比较器U1(4)引脚4的Vref比较,如果大于Vref,引脚2输出高电平,此时如与门U2(6)引脚1也为高电平说明老人可能跌倒,门U2(6)引脚3输入高电平脉冲,触发可控硅Q2(10)导通,拐杖上面的摄像头得电工作摄录周围环境。(The invention provides a vibration signal measuring circuit of an intelligent crutch, which comprises a resistor R1 (1), a resistor R4 (2), a resistor R5 (3), a comparator U1 (4), a resistor R6 (5), an AND gate U2 (6), a resistor R2 (7), a capacitor C1 (8), a compound triode Q1 (9), a silicon controlled rectifier Q2 (10), a capacitor C2 (11), a resistor R3 (12) and a resistor R7 (13). When the intelligent crutch falls, a vibration signal is filtered by a resistor R2 (7), a capacitor C1 (8) and a capacitor C2 (11) to transmit a signal with frequency of about 10Hz to a compound triode Q1 (9) and then is amplified and compared with Vref of a pin 4 of a comparator U1 (4), if the signal is greater than Vref, a pin 2 outputs a high level, and at the moment, if a pin 1 of an AND gate U2 (6) is also high level, the old man possibly falls down, a pin 3 of a gate U2 (6) inputs a high level pulse to trigger the conduction of a silicon controlled transistor Q2 (10), and a camera on the crutch is electrified to work to record the surrounding environment.)

1. Intelligence walking stick vibration signal measurement circuit, its characterized in that: the circuit comprises a resistor R1 (1), a resistor R4 (2), a resistor R5 (3), a comparator U1 (4), a resistor R6 (5), an AND gate U2 (6), a resistor R2 (7), a capacitor C1 (8), a composite triode Q1 (9), a controllable silicon Q2 (10), a capacitor C2 (11), a resistor R3 (12) and a resistor R7 (13); the 5V connection resistor is connected with the upper end of a resistor R1 (1), the upper end of a resistor R4 (2), a pin 3 of a comparator U1 (4) and the upper end of a resistor R6 (5); the left end of the resistor R2 (7) is connected with a vibration signal input end; the positive electrode of the capacitor C1 (8) is connected with the right end of the resistor R2 (7) and the negative electrode of the capacitor C2 (11); the base of the composite triode Q1 (9) is connected with the negative electrode of the capacitor C1 (8), the lower end of the resistor R1 (1), the left end of the resistor R5 (3) and the upper end of the resistor R3 (12); the collector of the composite triode Q1 (9) is connected with the lower end of a resistor R4 (2), the left end of a resistor R5 (3), a pin 5 of a comparator U1 (4) and the right end of a resistor R7 (13); the left end of the resistor R7 (13) is connected with the anode of the capacitor C2 (11); pin 4 of the comparator U1 (4) is connected with a reference voltage Vref; pin 2 of the comparator U1 (4) is connected with pin 1 of the AND gate U2 (6) and the lower end of the resistor R6 (5); pin 2 of the AND gate U2 (6) is connected with a crutch state signal input end; pin 3 of the AND gate U2 (6) is connected with pin G of a thyristor Q2 (10); the pin A of the controllable silicon Q2 (10) is connected with the power supply end of the camera; the ground is connected with a pin K of a controllable silicon Q2 (10), the lower end of a resistor R3 (12), a pin 12 of a comparator U1 (4) and an emitter of a compound triode Q1 (9); when the intelligent crutch falls, a vibration signal is filtered by a resistor R2 (7), a capacitor C1 (8) and a capacitor C2 (11) to transmit a signal with frequency of about 10Hz to a compound triode Q1 (9) and then is amplified and compared with Vref of a pin 4 of a comparator U1 (4), if the signal is greater than Vref, a pin 2 outputs a high level, and at the moment, if a pin 1 of an AND gate U2 (6) is also high level, the old man possibly falls down, a pin 3 of a gate U2 (6) inputs a high level pulse to trigger the conduction of a silicon controlled transistor Q2 (10), and a camera on the crutch is electrified to work to record the surrounding environment.

2. The intelligent crutch vibration signal measurement circuit of claim 1 wherein: the model of the composite triode Q1 (9) is FZT 605.

3. The intelligent crutch vibration signal measurement circuit of claim 1 wherein: the model of the comparator U1 (4) is LM 339M.

4. The intelligent crutch vibration signal measurement circuit of claim 1 wherein: the model of the AND gate U2 (6) is 74LS 08N.

5. The intelligent crutch vibration signal measurement circuit of claim 1 wherein: the model of the controllable silicon Q2 (10) is 2N 6027.

6. The intelligent crutch vibration signal measurement circuit of claim 1 wherein: the circuit is matched with other peripheral circuits, can transmit video signals and positioning signals to mobile phones of children and women, and simultaneously dials 110 for alarming.

7. The intelligent crutch vibration signal measurement circuit of claim 6 wherein: the other peripheral circuits comprise a satellite positioning circuit, an alarm circuit and an external communication circuit.

8. The intelligent crutch vibration signal measurement circuit of claim 7 wherein: and the other peripheral circuits and the circuit are directly interconnected and intercommunicated through the singlechip.

Technical Field

The invention relates to a vibration signal measuring circuit of an intelligent crutch.

Background

China gradually enters an aging society, children and women are born with the opportunity, the care of the old is always a difficult problem, and many old people are in great trouble and even lose lives because the old people cannot be rescued in time due to accidental falls.

Disclosure of Invention

The invention provides a vibration signal measuring circuit of an intelligent crutch to solve the problems. The circuit is simple in design, intelligent walking stick vibration signal detection is achieved with few devices, small size and low cost, whether the old man falls down or not is judged by detecting the walking stick vibration frequency and the walking stick state when the old man falls down through the circuit, meanwhile, a camera on the walking stick is activated, the scene environment where the old man falls down is recorded, video signals and positioning signals can be transmitted to a child mobile phone by matching with other peripheral circuits, and meanwhile 110 alarming is carried out. Thereby greatly reducing the possibility of serious consequences of the old due to the rescue.

In order to achieve the purpose, the invention adopts the technical scheme that: the circuit comprises a resistor R1 (1), a resistor R4 (2), a resistor R5 (3), a comparator U1 (4), a resistor R6 (5), an AND gate U2 (6), a resistor R2 (7), a capacitor C1 (8), a composite triode Q1 (9), a controllable silicon Q2 (10), a capacitor C2 (11), a resistor R3 (12) and a resistor R7 (13); when the intelligent crutch falls, a vibration signal is filtered by a resistor R2 (7), a capacitor C1 (8) and a capacitor C2 (11) to transmit a signal with frequency of about 10Hz to a compound triode Q1 (9) and then is amplified and compared with Vref of a pin 4 of a comparator U1 (4), if the signal is greater than Vref, a pin 2 outputs a high level, and at the moment, if a pin 1 of an AND gate U2 (6) is also high level, the old man possibly falls down, a pin 3 of a gate U2 (6) inputs a high level pulse to trigger the conduction of a silicon controlled transistor Q2 (10), and a camera on the crutch is electrified to work to record the surrounding environment.

Further, the 5V connection resistor R1 (1) is connected with the upper end of the resistor R4 (2), the comparator U1 (4) is connected with the pin 3, and the resistor R6 (5) is connected with the upper end of the resistor; the left end of the resistor R2 (7) is connected with a vibration signal input end; the positive electrode of the capacitor C1 (8) is connected with the right end of the resistor R2 (7) and the negative electrode of the capacitor C2 (11); the base of the composite triode Q1 (9) is connected with the negative electrode of the capacitor C1 (8), the lower end of the resistor R1 (1), the left end of the resistor R5 (3) and the upper end of the resistor R3 (12); the collector of the composite triode Q1 (9) is connected with the lower end of a resistor R4 (2), the left end of a resistor R5 (3), a pin 5 of a comparator U1 (4) and the right end of a resistor R7 (13); the left end of the resistor R7 (13) is connected with the anode of the capacitor C2 (11); pin 4 of the comparator U1 (4) is connected with a reference voltage Vref; pin 2 of the comparator U1 (4) is connected with pin 1 of the AND gate U2 (6) and the lower end of the resistor R6 (5); pin 2 of the AND gate U2 (6) is connected with a crutch state signal input end; pin 3 of the AND gate U2 (6) is connected with pin G of a thyristor Q2 (10); the pin A of the controllable silicon Q2 (10) is connected with the power supply end of the camera; the ground is connected with a pin K of a controllable silicon Q2 (10), the lower end of a resistor R3 (12), a pin 12 of a comparator U1 (4) and an emitter of a compound triode Q1 (9).

The model of the composite triode Q1 (9) is FZT 605.

The model of the comparator U1 (4) is LM 339M.

The model of the AND gate U2 (6) is 74LS 08N.

The model of the controllable silicon Q2 (10) is 2N 6027.

Furthermore, the circuit is matched with other peripheral circuits, so that video signals and positioning signals can be transmitted to the mobile phones of children, and 110 alarms are dialed at the same time.

The other peripheral circuits comprise a satellite positioning circuit, an alarm circuit and an external communication circuit.

And the other peripheral circuits and the circuit are directly interconnected and intercommunicated through the singlechip.

The invention has the following beneficial effects: the invention realizes the fall signal detection of the old people at lower cost, can design a crutch with the functions of camera shooting, alarming, positioning and the like by matching with other peripheral circuits, and has very high popularization and use values.

Drawings

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

FIG. 1 is a schematic structural diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, a resistor R1 (1), a resistor R4 (2), a resistor R5 (3), a comparator U1 (4), a resistor R6 (5), an and gate U2 (6), a resistor R2 (7), a capacitor C1 (8), a compound triode Q1 (9), a thyristor Q2 (10), a capacitor C2 (11), a resistor R3 (12), and a resistor R7 (13). When the intelligent crutch falls, a vibration signal is filtered by a resistor R2 (7), a capacitor C1 (8) and a capacitor C2 (11) to transmit a signal with frequency of about 10Hz to a compound triode Q1 (9) and then is amplified and compared with Vref of a pin 4 of a comparator U1 (4), if the signal is greater than Vref, a pin 2 outputs a high level, and at the moment, if a pin 1 of an AND gate U2 (6) is also high level, the old man possibly falls down, a pin 3 of a gate U2 (6) inputs a high level pulse to trigger the conduction of a silicon controlled transistor Q2 (10), and a camera on the crutch is electrified to work to record the surrounding environment. The 5V connection resistor is connected with the upper end of a resistor R1 (1), the upper end of a resistor R4 (2), a pin 3 of a comparator U1 (4) and the upper end of a resistor R6 (5); the left end of the resistor R2 (7) is connected with a vibration signal input end; the positive electrode of the capacitor C1 (8) is connected with the right end of the resistor R2 (7) and the negative electrode of the capacitor C2 (11); the base of the composite triode Q1 (9) is connected with the negative electrode of the capacitor C1 (8), the lower end of the resistor R1 (1), the left end of the resistor R5 (3) and the upper end of the resistor R3 (12); the collector of the composite triode Q1 (9) is connected with the lower end of a resistor R4 (2), the left end of a resistor R5 (3), a pin 5 of a comparator U1 (4) and the right end of a resistor R7 (13); the left end of the resistor R7 (13) is connected with the anode of the capacitor C2 (11); pin 4 of the comparator U1 (4) is connected with a reference voltage Vref; pin 2 of the comparator U1 (4) is connected with pin 1 of the AND gate U2 (6) and the lower end of the resistor R6 (5); pin 2 of the AND gate U2 (6) is connected with a crutch state signal input end; pin 3 of the AND gate U2 (6) is connected with pin G of a thyristor Q2 (10); the pin A of the controllable silicon Q2 (10) is connected with the power supply end of the camera; the ground is connected with a pin K of a controllable silicon Q2 (10), the lower end of a resistor R3 (12), a pin 12 of a comparator U1 (4) and an emitter of a compound triode Q1 (9). The model of the composite triode Q1 (9) is FZT 605. The model of the comparator U1 (4) is LM 339M. The model of the AND gate U2 (6) is 74LS 08N. The model of the controllable silicon Q2 (10) is 2N 6027.

Furthermore, the circuit is matched with other peripheral circuits, so that video signals and positioning signals can be transmitted to the mobile phones of children, and 110 alarms are dialed at the same time.

The other peripheral circuits comprise a satellite positioning circuit, an alarm circuit and an external communication circuit.

And the other peripheral circuits and the circuit are directly interconnected and intercommunicated through the singlechip.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.