阅读说明：本技术 无线充电用户的身份识别方法及实现该方法的电路 (Identity recognition method for wireless charging user and circuit for realizing same ) 是由 王万辉 于 2020-11-06 设计创作，主要内容包括：本发明公开了一种无线充电用户的身份识别方法及实现该方法的电路,按照如下步骤顺次实现的,接收适配器主程序开始工作,谐振线圈收到测距扰动脉冲,建立谐振电压、谐振电流,适配器原边启动、适配器BMS启动,稳定输出,调整BMS PWM发送联机信号,联机信号判断,提取本机信息,本机各项信息回传,稳定充电状态,适配器充电各项参数检测,当前电瓶充电参数检测处理,本次充电时间到,结束充电。本实发明具有：安全高效的,能避免非法的用户和车载充电设备盗电的优点。(The invention discloses an identity recognition method of a wireless charging user and a circuit for realizing the method, which are sequentially realized according to the following steps that a main program of an adapter is received to start working, a resonance coil receives a distance measurement disturbance pulse, resonance voltage and resonance current are established, the primary side of the adapter is started, the BMS of the adapter is started, stable output is realized, BMS PWM is adjusted to send an online signal, online signal judgment is carried out, local information is extracted, all information of the local is transmitted back, the charging state is stable, all parameters of adapter charging are detected, the current battery charging parameter is detected and processed, the charging time is up, and the charging is finished. The invention has the following advantages: safe efficient can avoid illegal user and on-vehicle battery charging outfit to steal the advantage of electricity.)

1. The identity recognition method of the wireless charging user is characterized in that: the method comprises the following steps of receiving a main program of an adapter to start working, receiving a ranging disturbance pulse by a resonant coil, establishing resonant voltage and resonant current, starting the primary side of the adapter and the BMS of the adapter, stably outputting, adjusting BMS PWM to send an online signal, judging the online signal, extracting information of the local machine, returning various information of the local machine, stabilizing a charging state, detecting various parameters of the adapter during charging, detecting and processing current battery charging parameters, and ending charging when the current charging time is up.

2. The method for identifying the identity of the wireless charging user according to claim 1, wherein: if the online signal is abnormal in the online signal judging step, returning to the step of adjusting BMS PWM to send the online signal again; feeding back to the step of re-returning to regulate BMS PWM to send on-line signals in real time in the step of detecting various parameters of the adapter charging; and the step of feeding back to the step of re-returning to regulate BMS PWM to send on-line signals in real time in the current battery charging parameter detection processing step.

3. The method for identifying the identity of the wireless charging user according to claim 1, wherein: the step of extracting the information of the machine comprises the step of detecting the battery type information, the battery voltage information, the battery capacity, the charging identification code, the charging current record, the charging voltage record and the adapter temperature in real time.

4. The method for identifying the identity of the wireless charging user according to claim 3, wherein: the charging identification code is the only identification code of the machine.

5. Wireless charging user's identity identification method circuit, its characterized in that: when D7 and D15 are conducted in the positive direction, the charging voltage output and the voltage of rear-end BMS working are established, and the direct-current 24V voltage output by D7 is filtered by a C01 high-frequency filtering C11 electrolytic capacitor to generate working voltage; the first route is subjected to current limiting by R39 and R40 and is added to the positive pole of a cooling fan, the second route is loaded to the base of Q3 by R38, the control end of the base of Q3 obtains a conducting voltage, a switch is formed, the fan is turned on, the third route is loaded to the collector of Q2, R31 is an upper bias resistor and a 5V working voltage output by a V2F reference, R32 and R29 divide the voltage to obtain a 2.5V reference voltage, C04 is a reference voltage noise elimination capacitor, the fourth route is loaded to R12, R12 and R11 are controlled by the reference voltage of V1F, and the voltage rise or reduction caused by the output load change achieves the purpose of adjusting by the voltage division duty ratio output of the primary side controlled by the feedback of a PC817 optical couple; RT2 is close to D15, the temperature of RT2 gradually increases along with the increase of time after the temperature control thermistor RT2 is charged, and the caused voltage change offsets the influence caused by the temperature change by outputting a control PC817 to adjust the PWM output of the primary side through UE1 BMS OUT 3; c18 and R50 are used for the protection of the RC absorption circuit D15; the 85V voltage output after the D15 rectification is superposed with the D7 voltage after being filtered by C17 and divided by R24, R25, R21, R22, R23 and R23 to provide a working voltage for the UE1 BMS, and simultaneously forms a V1F reference voltage with the R17, R18, R16, R15, R14, R13 and R13 voltages to form PWM feedback control of the PC1 on the primary side, and C9 and C12 are high-frequency desizing capacitors and used for purifying the V1F reference voltage so as to prevent noise interference.

6. The circuit of claim 5, wherein the circuit comprises: when the initial charging period is formed, entering a steady state period, the adapter control unit UE1 BMS MCU outputs an adjusting instruction, and the output of the charging to the battery is controlled through the BUCK synchronous rectification circuit; the BUCK synchronous BUCK rectifying circuit consisting of Q4, L2, Q5, Q6 and Q7 controls charging current and voltage, R621 k is a Q4 gate driving resistor R63 gate pull-up resistor R64 is a gate pull-down resistor, Q6 is a gate driving pulse control R61 is a Q6 base driving resistor; r661 k is Q5 grid drive resistance R67 grid pull-up resistance R68 is grid pull-down resistance, Q6 is grid drive pulse control R65 is Q6 base drive resistance, D16 is anti-reverse diode, protect not because the storage battery positive negative pole is connected but burns out the power adapter.

Technical Field

The invention relates to the technical field of wireless charging, in particular to an identity identification method of a wireless charging user and a circuit for realizing the method.

Background

In recent years, wireless charging core technology is mature day by day, wireless charging efficiency can exceed 90%, wireless charging power can reach 30kw, and wireless charging distance can reach the meter level. However, how to solve the compatibility between the vehicle-mounted device and the charging pile to improve the charging safety and avoid accidents, how to manage the vehicle-mounted charging device and avoid illegal users and the vehicle-mounted charging device from stealing electricity are still the problems faced by the wireless charging industry.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a safe and efficient identity identification method of a wireless charging user and a circuit for realizing the method, wherein the identity identification method can avoid illegal users and vehicle-mounted charging equipment from stealing electricity.

In order to realize the purpose, the invention is realized by adopting the following technical scheme: the identity recognition method of the wireless charging user is characterized in that: the method comprises the following steps of receiving a main program of an adapter to start working, receiving a ranging disturbance pulse by a resonant coil, establishing resonant voltage and resonant current, starting the primary side of the adapter and the BMS of the adapter, stably outputting, adjusting BMS PWM to send an online signal, judging the online signal, extracting information of the local machine, returning various information of the local machine, stabilizing a charging state, detecting various parameters of the adapter during charging, detecting and processing current battery charging parameters, and ending charging when the current charging time is up.

The identity recognition method for the wireless charging user is characterized in that: if the online signal is abnormal in the online signal judging step, returning to the step of adjusting BMS PWM to send the online signal again; feeding back to the step of re-returning to regulate BMS PWM to send on-line signals in real time in the step of detecting various parameters of the adapter charging; and the step of feeding back to the step of re-returning to regulate BMS PWM to send on-line signals in real time in the current battery charging parameter detection processing step.

The identity recognition method for the wireless charging user is characterized in that: the step of extracting the information of the machine comprises the step of detecting the battery type information, the battery voltage information, the battery capacity, the charging identification code, the charging current record, the charging voltage record and the adapter temperature in real time.

The identity recognition method for the wireless charging user is characterized in that: the charging identification code is the only identification code of the machine.

Wireless charging user's identity identification method circuit, its characterized in that: when D7 and D15 are conducted in the positive direction, the charging voltage output and the voltage of rear-end BMS working are established, and the direct-current 24V voltage output by D7 is filtered by a C01 high-frequency filtering C11 electrolytic capacitor to generate working voltage; the first route is subjected to current limiting by R39 and R40 and is added to the positive pole of a cooling fan, the second route is loaded to the base of Q3 by R38, the control end of the base of Q3 obtains a conducting voltage, a switch is formed, the fan is turned on, the third route is loaded to the collector of Q2, R31 is an upper bias resistor and a 5V working voltage output by a V2F reference, R32 and R29 divide the voltage to obtain a 2.5V reference voltage, C04 is a reference voltage noise elimination capacitor, the fourth route is loaded to R12, R12 and R11 are controlled by the reference voltage of V1F, and the voltage rise or reduction caused by the output load change achieves the purpose of adjusting by the voltage division duty ratio output of the primary side controlled by the feedback of a PC817 optical couple; RT2 is close to D15, the temperature of RT2 gradually increases along with the increase of time after the temperature control thermistor RT2 is charged, and the caused voltage change offsets the influence caused by the temperature change by outputting a control PC817 to adjust the PWM output of the primary side through UE1 BMS OUT 3; c18 and R50 are used for the protection of the RC absorption circuit D15. The 85V voltage output after the D15 rectification is superposed with the D7 voltage after being filtered by C17 and divided by R24, R25, R21, R22, R23 and R23 to provide a working voltage for the UE1 BMS, and simultaneously forms a V1F reference voltage with the R17, R18, R16, R15, R14, R13 and R13 voltages to form PWM feedback control of the PC1 on the primary side, and C9 and C12 are high-frequency desizing capacitors and used for purifying the V1F reference voltage so as to prevent noise interference.

The identity recognition method circuit of the wireless charging user is characterized in that: when the initial charging period is formed, entering a steady state period, the adapter control unit UE1 BMS MCU outputs an adjusting instruction, and the output of the charging to the battery is controlled through the BUCK synchronous rectification circuit; the BUCK synchronous BUCK rectifying circuit consisting of Q4, L2, Q5, Q6 and Q7 controls charging current and voltage, R621 k is a Q4 gate driving resistor R63 gate pull-up resistor R64 is a gate pull-down resistor, Q6 is a gate driving pulse control R61 is a Q6 base driving resistor; r661 k is Q5 grid drive resistance R67 grid pull-up resistance R68 is grid pull-down resistance, Q6 is grid drive pulse control R65 is Q6 base drive resistance, D16 is anti-reverse diode, protect not because the storage battery positive negative pole is connected but burns out the power adapter.

The invention has the following advantages: safe efficient can avoid illegal user and on-vehicle battery charging outfit to steal the advantage of electricity.

Drawings

FIG. 1 is a block diagram of the steps of the method of the present invention.

Fig. 2 is a schematic circuit diagram of the present invention.

Detailed Description

The invention is further elucidated with reference to the description of the drawings.

Fig. 1 to fig. 2 illustrate a preferred embodiment of the present invention, which shows an identification method for a wireless charging user, wherein the method comprises: the method comprises the following steps of receiving a main program of an adapter to start working, receiving a ranging disturbance pulse by a resonant coil, establishing resonant voltage and resonant current, starting the primary side of the adapter and the BMS of the adapter, stably outputting, adjusting BMS PWM to send an online signal, judging the online signal, extracting information of the local machine, returning various information of the local machine, stabilizing a charging state, detecting various parameters of the adapter during charging, detecting and processing current battery charging parameters, and ending charging when the current charging time is up.

The identity recognition method for the wireless charging user is characterized in that: if the online signal is abnormal in the online signal judging step, returning to the step of adjusting BMS PWM to send the online signal again; feeding back to the step of re-returning to regulate BMS PWM to send on-line signals in real time in the step of detecting various parameters of the adapter charging; and the step of feeding back to the step of re-returning to regulate BMS PWM to send on-line signals in real time in the current battery charging parameter detection processing step.

The identity recognition method for the wireless charging user is characterized in that: the step of extracting the information of the machine comprises the step of detecting the battery type information, the battery voltage information, the battery capacity, the charging identification code, the charging current record, the charging voltage record and the adapter temperature in real time.

The identity recognition method for the wireless charging user is characterized in that: the charging identification code is the only identification code of the machine.

Wireless charging user's identity identification method circuit, its characterized in that: when D7 and D15 are conducted in the positive direction, the charging voltage output and the voltage of rear-end BMS working are established, and the direct-current 24V voltage output by D7 is filtered by a C01 high-frequency filtering C11 electrolytic capacitor to generate working voltage; the first route is subjected to current limiting by R39 and R40 and is added to the positive pole of a cooling fan, the second route is loaded to the base of Q3 by R38, the control end of the base of Q3 obtains a conducting voltage, a switch is formed, the fan is turned on, the third route is loaded to the collector of Q2, R31 is an upper bias resistor and a 5V working voltage output by a V2F reference, R32 and R29 divide the voltage to obtain a 2.5V reference voltage, C04 is a reference voltage noise elimination capacitor, the fourth route is loaded to R12, R12 and R11 are controlled by the reference voltage of V1F, and the voltage rise or reduction caused by the output load change achieves the purpose of adjusting by the voltage division duty ratio output of the primary side controlled by the feedback of a PC817 optical couple; RT2 is close to D15, the temperature of RT2 gradually increases along with the increase of time after the temperature control thermistor RT2 is charged, and the caused voltage change offsets the influence caused by the temperature change by outputting a control PC817 to adjust the PWM output of the primary side through UE1 BMS OUT 3; c18 and R50 are used for the protection of the RC absorption circuit D15. The 85V voltage output after the D15 rectification is superposed with the D7 voltage after being filtered by C17 and divided by R24, R25, R21, R22, R23 and R23 to provide a working voltage for the UE1 BMS, and simultaneously forms a V1F reference voltage with the R17, R18, R16, R15, R14, R13 and R13 voltages to form PWM feedback control of the PC1 on the primary side, and C9 and C12 are high-frequency desizing capacitors and used for purifying the V1F reference voltage so as to prevent noise interference.

The identity recognition method circuit of the wireless charging user is characterized in that: when the initial charging period is formed, entering a steady state period, the adapter control unit UE1 BMS MCU outputs an adjusting instruction, and the output of the charging to the battery is controlled through the BUCK synchronous rectification circuit; the BUCK synchronous BUCK rectifying circuit consisting of Q4, L2, Q5, Q6 and Q7 controls charging current and voltage, R621 k is a Q4 gate driving resistor R63 gate pull-up resistor R64 is a gate pull-down resistor, Q6 is a gate driving pulse control R61 is a Q6 base driving resistor; r661 k is Q5 grid drive resistance R67 grid pull-up resistance R68 is grid pull-down resistance, Q6 is grid drive pulse control R65 is Q6 base drive resistance, D16 is anti-reverse diode, protect not because the storage battery positive negative pole is connected but burns out the power adapter.

During the working process, the adapter is connected into a voltage division circuit consisting of R355.1M, R35 5.1M, R35 220K of the storage battery to detect the voltage of the current storage battery, whether the voltage type of the current storage battery is 48V, 60V or 72V is distinguished, the type codes of the storage battery can be downloaded together when the identification code is downloaded, and the current stage of the AH number of the storage battery is not paid attention. Because the adapter is in a state of being always connected with the battery, the adapter is loaded with a unique identification code and a characteristic code at the initial installation stage, the identification code is generated by a random number, is locally stored in the adapter UE1 BMS EEPRO, is loaded by an upper computer and is uploaded to a background database at a far end. When charging, the unique identification code and the feature code identity authentication are carried out on the group of storage batteries, if the unique identification code is not available, only the feature code is available, the charging is allowed for 3 minutes, short message notification is carried out, and the unique identification code can be downloaded online by opening the WeChat applet; if the situation is cracked, the system locks the mobile phone according to the use condition of the previous charging user, and when a second identical user is found, the background alarms to send out a person for on-site confirmation. Therefore, convenience is brought to the identification of the adapter, and the problem that different electric vehicles are charged by users in charge, people and vehicles are moved away to be changed into the vehicles to be charged at the same position is solved.

If the system has power failure due to some reason in the charging process, the user who is not finished or leaves the charging area in the charging process will continue to finish the rest charging when the system is powered on again.