CN104991198A - Battery tour inspection processing circuit based on ARM platform multichannel switching - Google Patents
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Abstract
The invention provides a battery tour inspection processing circuit based on ARM platform multichannel switching. The battery tour inspection processing circuit comprises an ARM controller, an ADDR module which is used for transmitting information to the ARM controller, an RS485 communication module which is used for data transmission, a power supply and an LED indication module which supply power to the ARM and display state respectively, an AD acquisition module and a temperature acquisition module which are connected with the input end of the ARM controller, and an output module and a channel switch selection module which are connected with the output end of the ARM controller. According to battery tour inspection processing circuit, electric quantity of multiple storage batteries can be high-efficiently acquired through single channel, and the battery tour inspection processing circuit is suitable for various industries and various types of storage battery management so that the battery tour inspection processing circuit is high in precision, high in anti-interference capability, adjustable in detection storage battery voltage range and small in equipment size and has great application prospect in the aspect of emergency standby power.
Description
Technical field
The present invention relates to a kind of product ensureing emergency service electrical domain, mainly be used in when device power supply (DPS) breaks down or under equipment needs uninterrupted power supply situation, timely restorer is powered, product is by carrying out daily state monitoring to often saving accumulator, safeguard the measures such as monitoring, abnormality alarming, ensure often to save battery-operated in normal range, thus make the reliable and stable operation of equipment, especially at the nucleus equipment that the fields such as similar electric power, bank, government use, this series products is used to become particularly important.
Background technology
Along with the economic fast development of China in recent years, in government, electric power, bank, the equipment that all trades and professions such as building use gets more and more, equipment is also more and more important, major part requires can power in time when uninterrupted power supply and emergency condition, current China uses more piece accumulator series system to solve problems substantially, but market generally adopts hyperchannel battery tension gather or often save accumulator and be equipped with testing fixture communication, in actual applications, can not be efficient, accurate collection accesses battery condition signal, between remote control device, communication is comparatively complicated, active can not send problem accumulator warning information.
Summary of the invention
In order to overcome above-mentioned prior art Problems existing, the invention provides a kind of battery inspection treatment circuit switched based on ARM platform hyperchannel.
The technical scheme that the present invention takes is: a kind of battery inspection treatment circuit switched based on ARM platform hyperchannel, it is characterized in that, comprise: ARM controller, for to ARM controller transmit information ADDR module, for data transmission RS485 communication module, to ARM power and state display power supply and LED indicating module, the AD acquisition module be connected with ARM controller input end and temperature collect module, be connected with ARM controller output terminal output module and channel switch selects module.
Further, described ADDR module adopts SW DIP-4/SM toggle switch, by the I/O pin of 44.7K pull-up resistor by toggle switch positional information input ARM controller, be respectively SS00_PCO, PE5, TM3_PB11 and TM2_PB10, pull-up resistor one termination+5V power supply, a termination toggle switch exports.
Further, described RS485 communication module comprises Magnetic isolation receiver, the input end decoupling circuit be made up of electric capacity CK4, CK7, CK8 and by input inductance BK2 and the output terminal decoupling circuit that is made up of electric capacity CK5, CK6, and described Magnetic isolation receiver is connected with the output terminal of described ARM controller.
Further, described Magnetic isolation receiver adopts ADM2582E chip.
Further, described LED indicating module, adopt straight cutting light emitting diode, anode connects+5V power supply through 4.7K resistance, negative terminal connects the I/O pin of ARM controller, and pin is CLK0_PC1, and ARM controller controls I/O pin low and high level and realizes light emitting diode light on and off, wherein high level is bright, and low level is for going out.
Further, described in output module and comprise relay drive circuit and relay, described relay drive circuit is connected with the output terminal of described ARM controller, and the output terminal of described relay crystal drive circuit connects relay.
Further, described AD acquisition module comprises AD8031 chip, electric capacity CD1 ~ CD5, stabilivolt D1 and resistance RC1, AD8031 chip OUT pin is output signal, being realize signal feedback, outputing signal through CD3, CD4, CD5 ground connection by being connected with AD8031 chip-IN pin, resistance RC1 is set in the output signal, AD8031 chip power supply employing+5V, through CD1, CD2 filtering and noise reduction electric capacity between+5V and ground, CPU_GPIO_AD connects ARM controller PA2_AIX2 pin.
Further, described channel switch selects module to comprise 74HC138 code translator, AD8031 chip and light coupling relay, and described 74HC138 code translator is connected with the input end of described light coupling relay by AD8031 chip.
Further, described temperature collect module adopts DS18B20 temperature sensor, and the output terminal of described DS18B20 temperature sensor connects the input end of ARM controller.
Beneficial effect of the present invention is: the battery inspection treatment circuit switched based on ARM platform hyperchannel that the invention provides a kind of advanced technology, possesses single channel highly effective gathering more piece accumulator electric-quantity, be applicable to all trades and professions and various types of battery management, there is precision high, antijamming capability is strong, detect battery tension scope adjustable, equipment volume is little, in emergency use electricity, have good application prospect.
The battery inspection equipment that the present invention is based on ARM platform can realize telecommunication, communication is carried out by MODBUS Standards Code, real time inspection accesses the information such as accumulator running status, historical information and alarm, this battery inspection equipment by greatly facilitate accumulator management, can increasing storage battery service life, improve equipment electricity consumption reliability.
The battery inspection equipment that the present invention is based on ARM platform can realize 2 road temperature acquisitions, has the direct collecting temperature sensor analog signals of main control chip, is directly changed into digital signal, and by remote communication module and opertaing device interaction data.
Accompanying drawing explanation
Fig. 1 is a kind of battery inspection treatment circuit structural drawing switched based on ARM platform hyperchannel provided by the invention;
Fig. 2 is the Magnetic isolation communication module circuit diagram of the battery inspection treatment circuit based on the switching of ARM platform hyperchannel provided by the invention;
Fig. 3 be provided by the invention based on ARM platform hyperchannel switch battery inspection treatment circuit output resume module circuit diagram;
Fig. 4 is the AD acquisition module treatment circuit figure of the battery inspection treatment circuit based on the switching of ARM platform hyperchannel that the present invention proposes;
Fig. 5 is the 74HC138 code translator treatment circuit figure of the channel switch selection module of the battery inspection treatment circuit based on the switching of ARM platform hyperchannel that the present invention proposes;
Fig. 6 is the A/D module circuit diagram of the channel switch selection module of the battery inspection treatment circuit based on the switching of ARM platform hyperchannel that the present invention proposes;
Fig. 7 is the optical coupling isolator circuit diagram of the channel switch selection module of the battery inspection treatment circuit based on the switching of ARM platform hyperchannel that the present invention proposes.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be described in detail.
See Fig. 1, it is a kind of battery inspection treatment circuit structural drawing switched based on ARM platform hyperchannel provided by the invention.
As shown in Figure 1, a kind of battery inspection treatment circuit switched based on ARM platform hyperchannel, it is characterized in that, comprise: ARM controller, for to ARM controller transmit information ADDR module, for data transmission RS485 communication module, to ARM power and state display power supply and LED indicating module, the AD acquisition module be connected with ARM controller input end and temperature collect module, be connected with ARM controller output terminal output module and channel switch selects module.
ARM controller selects module by enable channel switch, and inputs A, B, C signal, controls the passage needing to gather, more directly gathers reading voltage live signal by ARM controller, does not need through other peripheral circuit.When connecting channel voltage, this circuit can calculation process rapidly, obtains the digital signal that voltage is corresponding, and ARM controller passes through program and stipulations and other opertaing device communications, realizes the functions such as battery tension collection, alarm, temperature acquisition.Described CPU powers and LED indicating module controls low and high level by ARM main control chip I/O pin, realizes the control to the light on and off of straight cutting light emitting diode, proves ARM main control chip power supply state.This circuit it to have volume little, precision is high, and external interference is little, and be suitable for various model accumulator, reliability is high, and the high and circuit of security is simple and easy to the features such as practical.
Further, described ADDR module adopts SW DIP-4/SM toggle switch, by the I/O pin of 44.7K pull-up resistor by toggle switch positional information input ARM controller, be respectively SS00_PCO, PE5, TM3_PB11 and TM2_PB10, pull-up resistor one termination+5V power supply, a termination toggle switch exports.
In the embodiment of the present invention, described ADDR module adopts SW DIP-4/SM toggle switch, that manually dial-up directly changes ARM main control chip I/O pin level, ARM main control chip identification 4 bit address line states, combine with program realize battery inspection device address can manual dial-up function.ARM controller is according to pin level height, and judge 4 hexadecimal address codes of combination toggle switch composition, i.e. address realm 00-0F, realizes the addressing of ADDR address by toggle switch.
See Fig. 2, it is the Magnetic isolation communication module circuit diagram of the battery inspection treatment circuit based on the switching of ARM platform hyperchannel provided by the invention.
Further, described RS485 communication module comprises Magnetic isolation receiver, the input end decoupling circuit be made up of electric capacity CK4, CK7, CK8 and by input inductance BK2 and the output terminal decoupling circuit that is made up of electric capacity CK5, CK6, and described Magnetic isolation receiver is connected with the output terminal of described ARM controller.
Further, described Magnetic isolation receiver adopts ADM2582E chip.
In the embodiment of the present invention, described RS485 communication module the Transistor-Transistor Logic level signal of ARM main control chip by transferring RS485 differential signal to after coil Magnetic isolation, then can be drawn by the terminal of 9pin, 3.81mm spacing.
In the embodiment of the present invention, described RS485 communication module adopts model to be ADM2582 chip, its inner integrated insulating power supply, can the Transistor-Transistor Logic level signal of ARM controller by transferring RS485 signal to after coil Magnetic isolation by Magnetic isolation communication module, input VDD_5 and GND exports VCC_485 and GND_485 independent current source after isolation, the Transistor-Transistor Logic level exported from ARM controller is connected with collection of letters CPU_485_RXD pin with the signalling CPU_485_TXD pin of Magnetic isolation receiver, controlled by direction control signal CPU_485_DIR, Magnetic isolation receiver exports rear differential signal RS485_A and RS485_B of isolation.Denoising is carried out, guard signal stability by input decoupling circuit output decoupling circuit and inductance.
Further, described LED indicating module, adopt straight cutting light emitting diode, anode connects+5V power supply through 4.7K resistance, negative terminal connects the I/O pin of ARM controller, and pin is CLK0_PC1, and ARM controller controls I/O pin low and high level and realizes light emitting diode light on and off, wherein high level is bright, and low level is for going out.
See Fig. 3, for provided by the invention based on ARM platform hyperchannel switch battery inspection treatment circuit output resume module circuit diagram.
Further, described in output module and comprise relay drive circuit and relay, described relay drive circuit is connected with the output terminal of described ARM controller, and the output terminal of described relay crystal drive circuit connects relay.
In the embodiment of the present invention, described relay drive circuit UH2 adopts ULN2803 driving chip, comprise 8 NPN Darlington transistors (C1-C8), be 8 for RL1-RL8 and output relay, described relay model is HF46F 5-HS1, CPU_OUT0, CPU_OUT1, CPU_OUT2, CPU_OUT3, CPU_OUT4, CPU_OUT5, CPU_OUT6, CPU_OUT7 is ARM controller 8 tunnel I/O interface pin, through resistance R14, R15, R16, R17, R18, R19, R20, the drop-down 10K resistance of R21 carries out filtering process input ULN2803 relay driving chip input end to signal wire, pull down resistor one end ground connection, one terminated signal lines.ULN2803 relay driving chip output terminal is used to access HF46F 5-HS1 module input through pull-up resistor R6, R7, R8, R9, R10, R11, R12, R13, pull-up resistor one termination+5V voltage, one termination ULN2803 relay drive chip signal output, provides the driving force of signal by arranging pull-up resistor.
In the embodiment of the present invention, described module of outputing is controlled by ARM main control chip, realizes quickly opening and closing and outputs node, can be used as equipment alarm, signal controls use.
For RL1 unit HF46F 5-HS1 module, ULN2803 relay driving chip output terminal RELAY_CORE01 and VCC_RL inputs RL1 unit jointly, with control RELAY_C_1 and RELAY_O_1 output node, realize ARM controller 8 tunnel I/O pin and controlled 8 roads and output nodal function.
See Fig. 4, be the AD acquisition module treatment circuit figure of the battery inspection treatment circuit based on the switching of ARM platform hyperchannel that the present invention proposes.
Further, described AD acquisition module comprises AD8031 chip, electric capacity CD1 ~ CD5, stabilivolt D1 and resistance RC1, AD8031 chip OUT pin is output signal, being realize signal feedback, outputing signal through CD3, CD4, CD5 ground connection by being connected with AD8031 chip-IN pin, resistance RC1 is set in the output signal, AD8031 chip power supply employing+5V, through CD1, CD2 filtering and noise reduction electric capacity between+5V and ground, CPU_GPIO_AD connects ARM controller PA2_AIX2 pin.
In the embodiment of the present invention, described AD acquisition module UH3 is AD8031 chip, described AD acquisition module realizes the weak ac voltage signal of input to be gathered by ARM main control chip, and use related algorithm to obtain actual voltage numbers amount, this main circuit will realize voltage follow function, make outside collection signal through chip process input ARM controller, reduction external circuit and environment gather pin impact to AD.T6630AP_OUT is external voltage signal access AD8031 chip+IN pin, range of signal is 0 to+5V, AD8031 chip OUT pin is output signal, realize signal feedback by being connected with AD8031 chip-IN pin, keep constrained input signal conformance, output signal is through CD3, CD4, CD5 ground connection, realize output signal filtering and noise reduction, reduce output circuit to the impact of signal, RC1 is 1K resistance, ensure stable signal transmission, AD8031 chip power supply employing+5V, through CD1 between+5V and ground, CD2 filtering and noise reduction electric capacity, ensure for electrical stability, by realizing CPU_GPIO_AD signal stabilization above, CPU_GPIO_AD connects ARM controller PA2_AIX2 pin, ARM controller Real-time Collection pin signal, use carries ADC modular converter, realize changing between voltage analog signal and digital signal, convert the cognizable 12 bit binary number signals of ARM controller to.
See Fig. 5 to Fig. 7, wherein Fig. 5 is the 74HC138 code translator treatment circuit figure of the channel switch selection module of the battery inspection treatment circuit based on the switching of ARM platform hyperchannel that the present invention proposes; Fig. 6 is the A/D module circuit diagram of the channel switch selection module of the battery inspection treatment circuit based on the switching of ARM platform hyperchannel that the present invention proposes; Fig. 7 is the optical coupling isolator circuit diagram of the channel switch selection module of the battery inspection treatment circuit based on the switching of ARM platform hyperchannel that the present invention proposes.
Further, described channel switch selects module to comprise 74HC138 code translator, AD8031 chip and light coupling relay, and described 74HC138 code translator is connected with the input end of described light coupling relay by AD8031 chip.
74HC138 code translator is selected to be by using AD8031 chip 8 road pin (to be respectively CPU_SEL_1, CPU_SEL_2, CPU_SEL_3, CPU_SEL_4, CPU_SEL_5, CPU_SEL_6, CPU_SEL_7, CPU_SEL_ 8; For CPU_SEL_1 in figure, other element circuits are consistent with it), control 74HC138 code translator (is respectively UH1, UH2, UH3, UH4, UH5, UH6, UH7, UH 8, in figure, UH1 is example, other element circuits are consistent with it) code translator enable pin, enable control signal is through RK1(4.7K) resistance connects+5V power supply, ensures that enable signal is stablized with this, series connection DK3 light emitting diode simultaneously, whether real time reaction current chip is enable.
It is (be respectively CPU_GPIO_A0, CPU_GPIO_A1, CPU_GPIO_A2 by AD8031 chip 3 road pin that the input and output of 74HC138 code translator control; For CPU_GPIO_A0 in figure) export UH1, UH2, UH3, UH4 UH5, UH6, UH7 UH 8 position 74HC138 code translator input pin to through AD8031 chip respectively, this main circuit of AD8031 chip will realize voltage follow function, make CPU_GPIO_A0 signal through chip process input ARM controller, reduction external circuit and environment gather pin impact to AD.CPU_GPIO_A0 is external voltage signal access AD8031 chip+IN pin, range of signal be 0 to+5V, AD8031 chip OUT pin for output signal, be realize signal feedback by being connected with AD8031 chip-IN pin, keep constrained input signal conformance, output signal through CD24, CD25 ground connection, realizes output signal filtering and noise reduction, and reduce output circuit to the impact of signal, AD8031 chip power supply employing+5V, through CD16 between+5V and ground, CD17 filtering and noise reduction electric capacity, ensures for electrical stability, by realizing GPIO_A0 signal stabilization above, GPIO_A1, GPIO_A2 is consistent with its circuit, by changing GPIO_A0, GPIO_A1, GPIO_A2 and chip enable control to coordinate, and realize the input of single 74HC138 code translator, 74HC138 code translator internal control circuit, realizes 3 tunnels and input 8 tunnel output functions, for UH1, outputs signal as Crl_INPUT_11, Crl_INPUT_12, Crl_INPUT_13, Crl_INPUT_14, Crl_INPUT_15, Crl_INPUT_16, Crl_INPUT_17, Crl_INPUT_18.
Channel switch controls with Crl_INPUT_11, Crl_INPUT_12 is example, select and 74HC138 code translator input/output control section in conjunction with 74HC138 code translator, use OMRON352 light coupling relay, OMRON352 light coupling relay input end meets Crl_INPUT_11 respectively, Crl_INPUT_12 and+5V power supply, RH1, RH4 is 1K resistance, its effect is exactly stable+5V input source, when Crl_INPUT_11 or Crl_INPUT_12 is selection mode, the inner input diode conducting of OMRON352 light coupling relay is also luminous, output node is impelled to close, INPUT_01, INPUT_02 is respectively battery incoming end, pass through 3.81mm, 4P terminal is drawn.
By realizing the enable IO in ARM controller 8 tunnel and 3 tunnel control IO above, control 8 road 74HC138 code translators, the exportable 8 line state amounts of each 74HC138 code translator, this circuit switches so can realize 8*8=64 paths, and gathered by BD_GPIO_AD, if figure is to calculate the one or two batteries battery, when selecting INPUT_01, UD1=Uc(UD1 is first segment cell voltage, Uc is that AD pin gathers voltage), when selecting INPUT_02, UD2=Uc*(RZ1/ (RZ1+ RZ4)), all the other 62 paths cell voltages are by that analogy.
In the embodiment of the present invention, described temperature collect module adopts DS18B20 temperature sensor, and the output terminal of described DS18B20 temperature sensor connects the input end of ARM controller.
ARM controller is by PA0_ADC0, PA0_ADC1 pin, gather DS18B20 temperature sensing pin voltage, carry out communication with it, reading temperature sensor simulated data, and change by carrying ADC, convert digital quantity to, digital quantity scope is 0-4095, DS18B20 temperature sensing output voltage signal scope is 0-5V, and collecting temperature scope is-55 DEG C ~+125 DEG C, calculated by equal proportion, realize the collection of ARM controller temperature to external world.
The present invention relates to a kind of battery inspection treatment circuit switched based on ARM platform hyperchannel, achieve single channel highly effective gathering more piece accumulator electric-quantity and environment temperature enforcement collection, battery inspection equipment is based on the microcomputer chip programming Control of ARM platform, the outside multichannel light coupling relay that uses introduces simulating signal, realize ARM-M0 chip single channel I/O interface by ARM-M0 chip I/O control 74HC138 code translator and gather multichannel external analog signal, battery inspection equipment is mainly used to detect each joint accumulator anode and cathode voltage of access, battery environment temperature, by standard RS485 interface and MODBUS agreement, relevant alarm parameter is set alternately to main control equipment, if any overvoltage in accessed accumulator, under-voltage, temperature crosses high abnormal conditions, the battery inspection equipment meeting all battery conditions of real-time collecting and both positive and negative polarity voltage, and abnormal information is sent in active, what battery inspection equipment was convenient and reliable carries out enforcement daily servicing and urgent use to accessed accumulator, thus have very important effect to serviceable life of battery and equipment reliable power supply.Battery inspection equipment provided by the invention is applicable to all trades and professions and various types of accumulator.
Beneficial effect of the present invention is: the battery inspection treatment circuit switched based on ARM platform hyperchannel that the invention provides a kind of advanced technology, possesses single channel highly effective gathering more piece accumulator electric-quantity, be applicable to all trades and professions and various types of battery management.It effectively avoids the multichannel collecting problem of existing market, has precision high, and antijamming capability is strong, and detect battery tension scope adjustable, equipment volume is little, in emergency use electricity, have good application prospect.
The novel battery inspection equipment based on ARM platform can realize telecommunication, communication is carried out by MODBUS Standards Code, real time inspection accesses the information such as accumulator running status, historical information and alarm, this battery inspection equipment by greatly facilitate accumulator management, can increasing storage battery service life, improve equipment electricity consumption reliability.
The novel battery inspection equipment based on ARM platform can realize 2 road temperature acquisitions, has the direct collecting temperature sensor analog signals of main control chip, is directly changed into digital signal, and by remote communication module and opertaing device interaction data.
Above to invention has been detailed introduction, but the invention is not restricted to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, can also make a variety of changes under the prerequisite not departing from present inventive concept.Do not depart from the spirit and scope of the present invention and can make other changes many and remodeling.Should be appreciated that and the invention is not restricted to specific embodiment, scope of the present invention is defined by the following claims.
Claims (8)
1. the battery inspection treatment circuit switched based on ARM platform hyperchannel, it is characterized in that, comprise: ARM controller, for to ARM controller transmit information ADDR module, for data transmission RS485 communication module, to ARM power and state display power supply and LED indicating module, the AD acquisition module be connected with ARM controller input end and temperature collect module, be connected with ARM controller output terminal output module and channel switch selects module.
2. a kind of battery inspection treatment circuit switched based on ARM platform hyperchannel according to claim 1, it is characterized in that, described ADDR module adopts SW DIP-4/SM toggle switch, by the I/O pin of 44.7K pull-up resistor by toggle switch positional information input ARM controller, be respectively SS00_PCO, PE5, TM3_PB11 and TM2_PB10, pull-up resistor one termination+5V power supply, a termination toggle switch exports.
3. a kind of battery inspection treatment circuit switched based on ARM platform hyperchannel according to claim 1, it is characterized in that, described RS485 communication module comprises Magnetic isolation receiver, the input end decoupling circuit be made up of electric capacity CK4, CK7, CK8 and by input inductance BK2 and the output terminal decoupling circuit that is made up of electric capacity CK5, CK6, and described Magnetic isolation receiver is connected with the output terminal of described ARM controller.
4. a kind of battery inspection treatment circuit switched based on ARM platform hyperchannel according to claim 3, it is characterized in that, described Magnetic isolation receiver adopts ADM2582E chip.
5. a kind of battery inspection treatment circuit switched based on ARM platform hyperchannel according to claim 1, it is characterized in that, described module of outputing comprises relay drive circuit and relay, described relay drive circuit is connected with the output terminal of described ARM controller, and the output terminal of described relay crystal drive circuit connects relay.
6. a kind of battery inspection treatment circuit switched based on ARM platform hyperchannel according to claim 1, it is characterized in that, described AD acquisition module comprises AD8031 chip, electric capacity CD1 ~ CD5, stabilivolt D1 and resistance RC1, AD8031 chip OUT pin is output signal, realize signal feedback by being connected with AD8031 chip-IN pin, output signal is through CD3, CD4, CD5 ground connection, resistance RC1 is set in the output signal, AD8031 chip power supply employing+5V, through CD1 between+5V and ground, CD2 filtering and noise reduction electric capacity, CPU_GPIO_AD connects ARM controller PA2_AIX2 pin.
7. a kind of battery inspection treatment circuit switched based on ARM platform hyperchannel according to claim 1, it is characterized in that, described channel switch selects module to comprise 74HC138 code translator, AD8031 chip and light coupling relay, and described 74HC138 code translator is connected with the input end of described light coupling relay by AD8031 chip.
8. a kind of battery inspection treatment circuit switched based on ARM platform hyperchannel according to claim 1, it is characterized in that, described temperature collect module adopts DS18B20 temperature sensor, and the output terminal of described DS18B20 temperature sensor connects the input end of ARM controller.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105529827A (en) * | 2015-11-11 | 2016-04-27 | 国网山东省电力公司临沂供电公司 | Intelligent auxiliary processing device for regional intrusion prevention video |
| CN109765489A (en) * | 2019-01-22 | 2019-05-17 | 南京中感微电子有限公司 | Electricity and temperature sensing circuit and earphone |
| CN113376535A (en) * | 2021-06-18 | 2021-09-10 | 深圳市康奈特电子有限公司 | Automatic testing system of new energy battery |
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| CN102426339A (en) * | 2011-09-03 | 2012-04-25 | 镇江恒驰科技有限公司 | Voltage collecting circuit for monomer batteries of battery pack |
| CN203480003U (en) * | 2013-10-21 | 2014-03-12 | 国家电网公司 | Storage battery inspection device |
| CN104007391A (en) * | 2014-04-29 | 2014-08-27 | 江苏华东锂电技术研究院有限公司 | Temperature and voltage monitoring system of lithium battery pack |
| CN204855748U (en) * | 2015-07-11 | 2015-12-09 | 安徽继远电网技术有限责任公司 | Treatment circuit is patrolled and examined to battery based on many channel switching of ARM platform |
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| CN109765489B (en) * | 2019-01-22 | 2021-02-12 | 南京中感微电子有限公司 | Electric quantity and temperature detection circuit and earphone |
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