CN208459500U - The acquisition of charger operating state data and transmission circuit - Google Patents

Abstract

The utility model discloses a kind of acquisition of charger operating state data and transmission circuits, including ARM microcontroller module and power circuit, and the SD card data memory module and WIFI module that connect with ARM microcontroller module；The input of ARM microcontroller module is terminated with voltage signal conditioning circuit, current signal conditioning circuit and temperature signal regulation circuit, the input of voltage signal conditioning circuit is terminated with voltage sensor, the input of current signal conditioning circuit is terminated with current sensor, two input terminals of temperature signal regulation circuit are connected to reference voltage circuit and temperature sensor respectively, and the output of ARM microcontroller module is terminated with LCD display module.The utility model circuit structure is simple, and novel in design rationally it is convenient and at low cost to realize, functional reliability is high, ensure that the reliable and stable upload of acquisition data, and practical, using effect is good, convenient for promoting the use of.

Description

The acquisition of charger operating state data and transmission circuit

Technical field

The utility model belongs to charger technical field, and in particular to a kind of acquisition of charger operating state data and transmission Circuit.

Background technique

Urban track traffic has capacity is big, land occupation saves, it is low to consume energy, pollution is small etc. compared with other public transport modes Feature is a kind of intensive mode of transportation for meeting Modern Urban Development.Charger is as the important of urban rail transit vehicles Component devices are not only responsible for charging for Vehicular accumulator cell, while also to mention for direct-flow electricity utilization apparatus such as control system, lighting systems For electric energy.Therefore, the whole equipment for the research of charger and Optimization Work for raising city rail vehicle accelerates core The production domesticization of technology, or even promote the development of entire urban track traffic industry suffers from particularly significant and profound significance.

In China, there are about more than 20 years times for the research and development of charger, still, up to the present, rail transit train The charging machine equipment equipped depends on offshore company, or provides key technology production, higher cost by offshore company. The quality of charger performance will directly influence the safe operation of urban railway transit train vehicle.Not with power electronic equipment Break and develop to high frequency, lightweight direction, switching loss problem is got worse, and the higher charger of power density is often because opening Pass device temperature is excessively high and damages, and lengthy and jumbled absorbing circuit is more reduction of system reliability, and whole efficiency is by extreme influence. In the case, soft switch technique is receive more and more attention, it can effectively reduce switching loss, fundamentally overcomes Absorbing circuit redundancy, MOS switch dissipation are serious existing for hard switching current transformer, electromagnetic compatible environment is severe etc. many intrinsic lacks It falls into.It is all to mostly use soft switch technique although the country is in Switching Power Supply design studies, towards intelligent, efficient, highly reliable Property aspect development, but be confined to small-power power more, fail the practical application in high power converters such as EMU chargers On have breakthrough.

In order to solve problem above, there has been proposed charging to realize to Vehicular accumulator cell safe and efficiently, from charging electricity From the perspective of stream, it is necessary to take measures effectively to limit excessive charging current；From the perspective of charging voltage, it is necessary to right The method that existing charging voltage is converted to obtain best float charge voltage；In addition, it is also proposed that charger output voltage according to The method that battery temp takes temperature-compensating measure will realize these methods, it is necessary to the operating state data (electricity of charger Pressure, electric current, temperature etc.) data acquisition and transmission are carried out, still, it is simple, novel in design that circuit structure is also lacked in the prior art Rationally, the acquisition of charger operating state data and transmission circuit that convenient, functional reliability is high, practical are realized.

Utility model content

The technical problem to be solved by the utility model is in view of the deficiency of the prior art, provide a kind of charging The acquisition of machine operating state data and transmission circuit, circuit structure is simple, novel in design reasonable, realizes convenient and at low cost, work Make high reliablity, ensure that the reliable and stable upload of acquisition data, practical, using effect is good, convenient for promoting the use of.

In order to solve the above technical problems, the technical solution adopted in the utility model is: a kind of charger operating state data Acquisition and transmission circuit, it is characterised in that: including ARM microcontroller module and for the charger operating state data acquisition and The power circuit of each electricity consumption module for power supply in transmission circuit, and the SD card data storage mould to connect with ARM microcontroller module Block and for passing through WIFI wireless router and the WIFI module that is communicated of monitoring computer；The ARM microcontroller module Input be terminated with voltage signal conditioning circuit, current signal conditioning circuit and temperature signal regulation circuit, the voltage signal The input of conditioning circuit is terminated with the voltage sensor detected for the charging voltage to charger, the current signal tune The input of reason circuit is terminated with the current sensor detected for the charging current to charger, the temperature signal regulation Two input terminals of circuit are connected to reference voltage circuit respectively and carry out for the temperature to the battery for needing charger to charge The output of the temperature sensor of real-time detection, the ARM microcontroller module is terminated with LCD display module；The power circuit Including 15V Switching Power Supply and 15V to the 5V voltage conversion circuit being connect with the output end of 15V Switching Power Supply, and with 15V to 5V 5V to the 3.3V voltage conversion circuit of the output end connection of voltage conversion circuit；The ARM microcontroller module, SD card data are deposited Store up the 3.3V of module, WIFI module, temperature signal regulation circuit and reference voltage circuit with 5V to 3.3V voltage conversion circuit Voltage output end connection, the current signal conditioning circuit are connect with the output end of 15V Switching Power Supply, the voltage signal conditioning Circuit, voltage sensor, current sensor, temperature sensor and LCD display module are defeated with 15V to 5V voltage conversion circuit Outlet connection.

Above-mentioned charger operating state data acquisition and transmission circuit, it is characterised in that: 15V to the 5V voltage turns Changing circuit includes voltage stabilizing chip LM7805, nonpolarity capacitor C11 and nonpolar capacitor C12, the voltage stabilizing chip LM7805's Vin pin is connect with the output end of 15V Switching Power Supply, and is grounded by nonpolarity capacitor C11, the voltage stabilizing chip LM7805's Vout pin is the 5V voltage output end of 15V to 5V voltage conversion circuit, and passes through nonpolarity capacitor C12 ground connection, the pressure stabilizing The GND pin of chip LM7805 is grounded；5V to the 3.3V voltage conversion circuit includes voltage stabilizing chip SGM2019, nonpolarity electricity Hold the 1st pin and 15V to 5V voltage of C13, nonpolarity capacitor C14 and nonpolar capacitor C15, the voltage stabilizing chip SGM2019 The 5V voltage output end of conversion circuit connects, and is grounded by nonpolarity capacitor C13, and the 2nd of the voltage stabilizing chip SGM2019 is drawn Foot and the 3rd pin are grounded, and the 4th pin of the voltage stabilizing chip SGM2019 is the 3.3V electricity of 5V to 3.3V voltage conversion circuit Output end is pressed, and is grounded by nonpolarity capacitor C15, the 5th pin of the voltage stabilizing chip SGM2019 passes through nonpolar capacitor C14 ground connection.

Above-mentioned charger operating state data acquisition and transmission circuit, it is characterised in that: the ARM microcontroller mould Block include ARM microcontroller LPC2131 and with the ARM microcontroller LPC2131 crystal oscillating circuit to connect and reset circuit, it is described The 23rd pin of ARM microcontroller LPC2131 is connect with the 3.3V voltage output end of 5V to 3.3V voltage conversion circuit；It is described Crystal oscillating circuit includes one end and non-pole of crystal oscillator XTAL, nonpolarity capacitor Cap1 and nonpolar capacitor Cap2, the crystal oscillator XTAL One end of property capacitor Cap1 is connect with the 61st pin of the ARM microcontroller LPC2131, the other end of the crystal oscillator XTAL It is connect with the 62nd pin of the ARM microcontroller LPC2131 with one end of nonpolar capacitor Cap2, the nonpolarity electricity The other end of the other end and nonpolar capacitor Cap2 that hold Cap1 is grounded；The reset circuit includes reset key RST, institute The one end for stating reset key RST is connect with the 57th pin of the ARM microcontroller LPC2131, the reset key RST's Other end ground connection.

Above-mentioned charger operating state data acquisition and transmission circuit, it is characterised in that: the SD card data store mould Block includes the 1st pin, the 2nd pin, the 3rd pin, the 5th pin, the 7th of SDCARD-M and 12 pin plug P4, the SDCARD-M Pin and the 8th pin be corresponding in turn to the 6th pin of 12 pin plug P4, the 5th pin, the 4th pin, the 3rd pin, the 2nd pin and The connection of 1st pin, the 1st pin, the 2nd pin, the 3rd pin, the 4th pin, the 5th pin and the 6th pin of the 12 pin plug P4 Pass through resistance R29, resistance R24, resistance R30, resistance R26, resistance R27 and resistance R28 and 5V to 3.3V voltage conversion electricity respectively The 3.3V voltage output end on road connects；The 4th pin of the SDCARD-M and the 3.3V voltage of 5V to 3.3V voltage conversion circuit Output end connection, and be grounded by nonpolarity capacitor C28；The 6th pin of the SDCARD-M, the 10th pin and the 11st pin are equal Ground connection；The 8th pin, the 9th pin, the 10th pin and the 11st pin of the 12 pin plug P4 is corresponding in turn to and the ARM micro-control The 29th pin, the 27th pin, the 30th pin and the connection of the 31st pin of device LPC2131 processed.

Above-mentioned charger operating state data acquisition and transmission circuit, it is characterised in that: the WIFI module includes ESP8266 serial ports WIFI module, power pins VCC and 5V to 3.3V voltage the conversion electricity of the ESP8266 serial ports WIFI module The 3.3V voltage output end on road connects, the ground terminal pin GND ground connection of the ESP8266 serial ports WIFI module, described The 34th pin of the signal sending end pin UART_TX of ESP8266 serial ports WIFI module and the ARM microcontroller LPC2131 Connection, the signal receiving end pin UART_RX of the ESP8266 serial ports WIFI module and the ARM microcontroller LPC2131's The connection of 33rd pin.

Above-mentioned charger operating state data acquisition and transmission circuit, it is characterised in that: the voltage signal conditioning electricity Road include linear optical coupling isolation chip HCPL-7840, amplifier chip AD8607, nonpolar capacitor C16, nonpolar capacitor C17, Nonpolar capacitor C18, nonpolar capacitor C19, slide rheostat Rv1, slide rheostat Rv2, resistance R11, resistance R12, resistance R13, resistance R14, resistance R15 and resistance R16, the resistance R11 one end be voltage signal inputs VIN and and voltage sensor The output end of device connects, and a fixing end of the other end of the resistance R11 and slide rheostat Rv1 are and slide rheostat The sliding end of Rv1 connects, and is grounded by resistance R12, the IN+ pin and cunning of the linear optical coupling isolation chip HCPL-7840 Another fixing end connection of dynamic rheostat Rv1, and be grounded by nonpolarity capacitor C16, the linear optical coupling isolation chip IN- pin, GND1 pin and the GND2 pin of HCPL-7840 is grounded, the linear optical coupling isolation chip HCPL-7840's VDD1 pin is connect with the 5V voltage output end of 15V to 5V voltage conversion circuit, and is grounded by nonpolarity capacitor C17, described The VDD2 pin of linear optical coupling isolation chip HCPL-7840 is connect with the 5V voltage output end of 15V to 5V voltage conversion circuit, And be grounded by nonpolarity capacitor C18, the VOUT+ pin of the linear optical coupling isolation chip HCPL-7840 by resistance R14 and The 3rd pin of amplifier chip AD8607 connects, and is grounded by resistance R15, the linear optical coupling isolation chip HCPL-7840 VOUT- pin connect with the 2nd pin of amplifier chip AD8607 by resistance R13, the amplifier chip AD8607's The one end of one end of 2nd pin and resistance R16 with nonpolar capacitor C19 is all connected with, and the 1st of the amplifier chip AD8607 the The other end of pin, the other end of resistance R16 and nonpolar capacitor C19 is solid with the sliding end of slide rheostat Rv2 and one Fixed end connection, another fixing end of the slide rheostat Rv2 are the output end VOUT and and ARM of voltage signal conditioning circuit The 13rd pin of microcontroller LPC2131 connects, and the 8th pin and 15V to 5V voltage of the amplifier chip AD8607 is converted The 5V voltage output end of circuit connects, the 4th pin ground connection of the amplifier chip AD8607.

Above-mentioned charger operating state data acquisition and transmission circuit, it is characterised in that: the current signal conditioning electricity Road include operational amplifier chip LM358, zener diode D11, nonpolar capacitor C20, nonpolar capacitor C21, resistance R17, Resistance R18, resistance R19 and resistance R20, the 3rd pin of the operational amplifier chip LM358 are connect with one end of resistance R18, And be grounded by nonpolarity capacitor C20, the other end of the resistance R18 is current signal input IIN and and current sensor Output end connection, the other end of the resistance R18 is grounded by resistance R17, the 2nd of the operational amplifier chip LM358 the One end of pin and resistance R20 are connect with one end of resistance R19, and the other end of the resistance R19 is with nonpolar capacitor C21's One end connection, the 1st pin of the operational amplifier chip LM358, the other end of resistance R20, nonpolar capacitor C21 it is another End and zener diode D11 cathode be current signal conditioning circuit output end IOUT and with ARM microcontroller LPC2131 The 14th pin connection, the plus earth of the zener diode D11, the 8th pin of the operational amplifier chip LM358 with The output end of 15V Switching Power Supply connects, the 4th pin ground connection of the operational amplifier chip LM358.

Above-mentioned charger operating state data acquisition and transmission circuit, it is characterised in that: the temperature signal regulation electricity Road includes the-IN pin of amplifier chip AD623, nonpolarity capacitor C22 and resistance R24, the amplifier chip AD623 for temperature It spends the first signal input part TIN1 of signal conditioning circuit and is connect with the output end of reference voltage circuit, the amplifier core + IN the pin of piece AD623 is the first signal input part TIN2 of temperature signal regulation circuit and the output end with temperature sensor - RG the pin of connection, the amplifier chip AD623 is connect by resistance R24 with the+RG pin of amplifier chip AD623, + Vs the pin of the amplifier chip AD623 is connect with the 3.3V voltage output end of 5V to 3.3V voltage conversion circuit, and is passed through Nonpolar capacitor C22 the ground connection ,-Vs pin and REF pin of the amplifier chip AD623 are grounded, the amplifier chip The OUTPUT pin of AD623 be temperature signal regulation circuit output end TOUT and with ARM microcontroller LPC2131 the 15th Pin connection.

Above-mentioned charger operating state data acquisition and transmission circuit, it is characterised in that: the reference voltage circuit packet Concatenated resistance R22 and resistance R23 is included, one end of resistance R22 and resistance R23 after series connection and 5V to 3.3V voltage conversion electricity The 3.3V voltage output end on road connects, the other end ground connection of resistance R22 and resistance R23 after series connection, the resistance R22 and resistance The connecting pin of R23 is the output end of reference voltage circuit.

Above-mentioned charger operating state data acquisition and transmission circuit, it is characterised in that: the LCD display module packet 12864 liquid crystal displays and slide rheostat Rv5 are included, VDD pin, PSB pin and the LEA of 12864 liquid crystal display draw A fixing end of foot and slide rheostat Rv5 are connect with the 5V voltage output end of 15V to 5V voltage conversion circuit, institute State another fixing end ground connection of slide rheostat Rv5, the VO pin and slide rheostat Rv5 of 12864 liquid crystal display Sliding end connection, the VSS pin and LEK pin of 12864 liquid crystal display be grounded, 12864 liquid crystal display RS pin, R/W pin, E pin, DB0 pin, DB1 pin, DB2 pin, DB3 pin, DB4 pin, DB5 pin, DB6 draw Foot, DB7 pin and RST pin be corresponding in turn to the 36th pin of ARM microcontroller LPC2131, the 37th pin, the 38th pin, 39th pin, the 40th pin, the 41st pin, the 44th pin, the 45th pin, the 46th pin, the 47th pin, the 48th pin and The connection of 52 pins.

Compared with the prior art, the utility model has the following advantages:

1, the utility model uses modular design, and circuit structure is simple, it is novel in design rationally, realize it is convenient and at This is low.

2, the utility model uses ARM microcontroller module collection voltages signal conditioning circuit, current signal conditioning circuit With the signal of temperature signal regulation circuit output, the operating state data (voltage, electric current, temperature etc.) of charger can be realized Acquisition, fast response time, stability is good, high reliablity, convenient for charger realize over-voltage, overcurrent protection and temperature-compensating.

3, the utility model carries out data storage using SD card data memory module, and data storage capacity is big, it is not easy to lose It loses, high reliablity.

4, the utility model is carried out wireless communication using WIFI module and monitoring computer, is not necessarily to wiring, and communicate and stablize Reliably, it ensure that the reliable and stable upload of acquisition data.

5, the utility model can charge safe and efficiently for charger provide circuit structure it is simple, it is novel in design rationally, Realize the operating state data acquisition and transmission circuit that convenient, functional reliability is high, practical, the practicability of the utility model By force, using effect is good, convenient for promoting the use of.

In conclusion the circuit structure of the utility model is simple, novel in design rationally it is convenient and at low cost to realize, works High reliablity ensure that the reliable and stable upload of acquisition data, and practical, using effect is good, convenient for promoting the use of.

Below by drawings and examples, the technical solution of the utility model is described in further detail.

Detailed description of the invention

Fig. 1 is the schematic block circuit diagram of the utility model.

Fig. 2 is the circuit diagram of the utility model 15V to 5V voltage conversion circuit.

Fig. 3 is the circuit diagram of the utility model 5V to 3.3V voltage conversion circuit.

Fig. 4 is the circuit diagram of the utility model ARM microcontroller module.

Fig. 5 is the circuit diagram of the utility model SD card data memory module.

Fig. 6 is the circuit diagram of the utility model WIFI module.

Fig. 7 is the circuit diagram of the utility model voltage signal conditioning circuit.

Fig. 8 is the circuit diagram of the utility model current signal conditioning circuit.

Fig. 9 is the circuit connection diagram of the utility model temperature signal regulation circuit and reference voltage circuit.

Figure 10 is the circuit diagram of the utility model LCD display module.

Description of symbols:

1-voltage sensor；2-ARM microcontroller modules；

3-power circuits；3-1-15V Switching Power Supply；

3-2-15V to 5V voltage conversion circuit；3-3-5V to 3.3V voltage conversion circuit；

3-4-5V to 1.8V voltage conversion circuit；4-voltage signal conditioning circuits；

5-current signal conditioning circuits；6-temperature signal regulation circuits；

7-current sensors；8-LCD display modules；9-temperature sensors；

10-reference voltage circuits；11-SD card data memory modules；12-WIFI modules.

Specific embodiment

As shown in Figure 1, a kind of charger operating state data acquisition of the utility model and transmission circuit, including ARM are micro- Controller module 2 and for the charger operating state data acquisition and transmission circuit in each electricity consumption module for power supply power circuit 3, and the SD card data memory module 11 that connects with ARM microcontroller module 2 and for passing through WIFI wireless router and prison The WIFI module 12 that control computer is communicated；The input of the ARM microcontroller module 2 is terminated with voltage signal conditioning electricity The input of road 4, current signal conditioning circuit 5 and temperature signal regulation circuit 6, the voltage signal conditioning circuit 4 is terminated with use Use is terminated in the input of the voltage sensor 1 that the charging voltage to charger is detected, the current signal conditioning circuit 5 In the current sensor 7 that the charging current to charger is detected, two input terminals point of the temperature signal regulation circuit 6 The temperature for not being connected to reference voltage circuit 10 and being measured in real time for the temperature to the battery for needing charger to charge passes The output of sensor 9, the ARM microcontroller module 2 is terminated with LCD display module 8；The power circuit 3 is switched including 15V Power supply 3-1 and 15V to the 5V voltage conversion circuit 3-2 being connect with the output end of 15V Switching Power Supply 3-1, and with 15V to 5V 5V to the 3.3V voltage conversion circuit 3-3 of the output end connection of voltage conversion circuit 3-2；The ARM microcontroller module 2, SD Card data memory module 11, WIFI module 12, temperature signal regulation circuit 6 and reference voltage circuit 10 are electric with 5V to 3.3V The 3.3V voltage output end of voltage conversion circuit 3-3 connects, the output of the current signal conditioning circuit 5 and 15V Switching Power Supply 3-1 End connection, the voltage signal conditioning circuit 4, voltage sensor 1, current sensor 7, temperature sensor 9 and LCD display module 8 connect with the output end of 15V to 5V voltage conversion circuit 3-2.

In the present embodiment, as shown in Fig. 2, 15V to the 5V voltage conversion circuit 3-2 include voltage stabilizing chip LM7805, it is non- The output of the Vin pin and 15V Switching Power Supply 3-1 of polar capacitor C11 and nonpolar capacitor C12, the voltage stabilizing chip LM7805 End connection, and be grounded by nonpolarity capacitor C11, the Vout pin of the voltage stabilizing chip LM7805 is the conversion of 15V to 5V voltage The 5V voltage output end of circuit 3-2, and be grounded by nonpolarity capacitor C12, the GND pin of the voltage stabilizing chip LM7805 connects Ground；As shown in figure 3,5V to the 3.3V voltage conversion circuit 3-3 include voltage stabilizing chip SGM2019, it is nonpolar capacitor C13, non- The 1st pin and 15V to 5V voltage conversion circuit of polar capacitor C14 and nonpolar capacitor C15, the voltage stabilizing chip SGM2019 The 5V voltage output end of 3-2 connects, and is grounded by nonpolarity capacitor C13, the 2nd pin of the voltage stabilizing chip SGM2019 with 3rd pin is grounded, and the 4th pin of the voltage stabilizing chip SGM2019 is the 3.3V voltage of 5V to 3.3V voltage conversion circuit 3-3 Output end, and be grounded by nonpolarity capacitor C15, the 5th pin of the voltage stabilizing chip SGM2019 passes through nonpolar capacitor C14 Ground connection.

In the present embodiment, as shown in figure 4, the ARM microcontroller module 2 include ARM microcontroller LPC2131 and with The crystal oscillating circuit and reset circuit that ARM microcontroller LPC2131 connects, the 23rd pin of the ARM microcontroller LPC2131 with The 3.3V voltage output end of 5V to 3.3V voltage conversion circuit 3-3 connects；The crystal oscillating circuit includes crystal oscillator XTAL, nonpolarity One end of one end and nonpolarity capacitor Cap1 of capacitor Cap1 and nonpolar capacitor Cap2, the crystal oscillator XTAL with the ARM The 61st pin of microcontroller LPC2131 connects, one end of the other end of the crystal oscillator XTAL and nonpolarity capacitor Cap2 with The 62nd pin of the ARM microcontroller LPC2131 connects, the other end and nonpolar capacitor of the nonpolarity capacitor Cap1 The other end of Cap2 is grounded；The reset circuit includes reset key RST, one end of the reset key RST and the ARM The 57th pin of microcontroller LPC2131 connects, the other end ground connection of the reset key RST.

In the present embodiment, as shown in figure 5, the SD card data memory module 11 includes SDCARD-M and 12 pin plug P4, The 1st pin, the 2nd pin, the 3rd pin, the 5th pin, the 7th pin and the 8th pin of the SDCARD-M is corresponding in turn to and 12 needles The 6th pin, the 5th pin, the 4th pin, the 3rd pin, the 2nd pin and the connection of the 1st pin of plug P4, the 12 pin plug P4 The 1st pin, the 2nd pin, the 3rd pin, the 4th pin, the 5th pin and the 6th pin pass through resistance R29, resistance R24, electricity respectively Resistance R30, resistance R26, resistance R27 and resistance R28 are connect with the 3.3V voltage output end of 5V to 3.3V voltage conversion circuit 3-3； The 4th pin of the SDCARD-M is connect with the 3.3V voltage output end of 5V to 3.3V voltage conversion circuit 3-3, and by non- Polar capacitor C28 ground connection；The 6th pin, the 10th pin and the 11st pin of the SDCARD-M is grounded；The 12 pin plug P4 The 8th pin, the 9th pin, the 10th pin and the 11st pin be corresponding in turn to and draw with the 29th of the ARM microcontroller LPC2131 Foot, the 27th pin, the 30th pin and the connection of the 31st pin.

In the present embodiment, as shown in fig. 6, the WIFI module 12 includes ESP8266 serial ports WIFI module, it is described The 3.3V voltage output end of the power pins VCC and 5V to 3.3V voltage conversion circuit 3-3 of ESP8266 serial ports WIFI module connect It connects, the ground terminal pin GND ground connection of the ESP8266 serial ports WIFI module, the signal hair of the ESP8266 serial ports WIFI module Sending end pin UART_TX is connect with the 34th pin of the ARM microcontroller LPC2131, the ESP8266 serial ports WIFI mould The signal receiving end pin UART_RX of block is connect with the 33rd pin of the ARM microcontroller LPC2131.

In the present embodiment, as shown in fig. 7, the voltage signal conditioning circuit 4 includes linear optical coupling isolation chip HCPL- 7840, amplifier chip AD8607, nonpolar capacitor C16, nonpolar capacitor C17, nonpolar capacitor C18, nonpolar capacitor C19, slide rheostat Rv1, slide rheostat Rv2, resistance R11, resistance R12, resistance R13, resistance R14, resistance R15 and resistance One end of R16, the resistance R11 are voltage signal inputs VIN and connect with the output end of voltage sensor 1, the resistance The other end of R11 and a fixing end of slide rheostat Rv1 are connect with the sliding end of slide rheostat Rv1, and pass through electricity Hinder R12 ground connection, another of the IN+ pin of the linear optical coupling isolation chip HCPL-7840 and slide rheostat Rv1 are fixed End connection, and be grounded by nonpolarity capacitor C16, IN- pin, the GND1 of the linear optical coupling isolation chip HCPL-7840 draws Foot and GND2 pin are grounded, and the VDD1 pin and 15V to 5V voltage of the linear optical coupling isolation chip HCPL-7840 is converted The 5V voltage output end of circuit 3-2 connects, and is grounded by nonpolarity capacitor C17, the linear optical coupling isolation chip HCPL- 7840 VDD2 pin is connect with the 5V voltage output end of 15V to 5V voltage conversion circuit 3-2, and passes through nonpolar capacitor C18 The VOUT+ pin of ground connection, the linear optical coupling isolation chip HCPL-7840 passes through resistance R14's and amplifier chip AD8607 The connection of 3rd pin, and be grounded by resistance R15, the VOUT- pin of the linear optical coupling isolation chip HCPL-7840 passes through Resistance R13 is connect with the 2nd pin of amplifier chip AD8607, the 2nd pin and resistance R16 of the amplifier chip AD8607 One end with nonpolar capacitor C19 of one end be all connected with, the 1st pin of the amplifier chip AD8607, resistance R16 it is another The other end of one end and nonpolar capacitor C19 are connect with the sliding end of slide rheostat Rv2 and a fixing end, the sliding Another fixing end of rheostat Rv2 be voltage signal conditioning circuit 4 output end VOUT and with ARM microcontroller LPC2131 The connection of the 13rd pin, the 5V voltage of the 8th pin of the amplifier chip AD8607 and 15V to 5V voltage conversion circuit 3-2 Output end connection, the 4th pin ground connection of the amplifier chip AD8607.

In the present embodiment, as shown in figure 8, the current signal conditioning circuit 5 include operational amplifier chip LM358, it is steady Diode D11, nonpolar capacitor C20, nonpolar capacitor C21, resistance R17, resistance R18, resistance R19 and resistance R20 are pressed, it is described The 3rd pin of operational amplifier chip LM358 is connect with one end of resistance R18, and is grounded by nonpolarity capacitor C20, described The other end of resistance R18 connect for current signal input IIN and with the output end of current sensor 7, the resistance R18's The other end is grounded by resistance R17, and one end of the 2nd pin of the operational amplifier chip LM358 and resistance R20 are and resistance One end of R19 connects, and the other end of the resistance R19 is connect with one end of nonpolar capacitor C21, the operational amplifier chip The 1st pin of LM358, the other end of resistance R20, the cathode of the other end of nonpolar capacitor C21 and zener diode D11 are equal For current signal conditioning circuit 5 output end IOUT and connect with the 14th pin of ARM microcontroller LPC2131, the pressure stabilizing The plus earth of diode D11, the 8th pin of the operational amplifier chip LM358 and the output end of 15V Switching Power Supply 3-1 Connection, the 4th pin ground connection of the operational amplifier chip LM358.

In the present embodiment, as shown in figure 9, the temperature signal regulation circuit 6 includes amplifier chip AD623, nonpolarity - IN the pin of capacitor C22 and resistance R24, the amplifier chip AD623 are that the first signal of temperature signal regulation circuit 6 is defeated Enter to hold TIN1 and connect with the output end of reference voltage circuit 10 ,+IN the pin of the amplifier chip AD623 is temperature signal It first signal input part TIN2 of conditioning circuit 6 and is connect with the output end of temperature sensor 9, the amplifier chip AD623 - RG pin connect with+RG the pin of amplifier chip AD623 by resistance R24 ,+the Vs of the amplifier chip AD623 draws Foot is connect with the 3.3V voltage output end of 5V to 3.3V voltage conversion circuit 3-3, and is grounded by nonpolarity capacitor C22, described - Vs the pin and REF pin of amplifier chip AD623 is grounded, and the OUTPUT pin of the amplifier chip AD623 is temperature It the output end TOUT of signal conditioning circuit 6 and is connect with the 15th pin of ARM microcontroller LPC2131.

In the present embodiment, as shown in figure 9, the reference voltage circuit 10 includes concatenated resistance R22 and resistance R23, string One end of resistance R22 and resistance R23 after connection are connect with the 3.3V voltage output end of 5V to 3.3V voltage conversion circuit 3-3, string The other end of resistance R22 and resistance R23 after connection are grounded, and the connecting pin of the resistance R22 and resistance R23 are reference voltage circuit 10 output end.

In the present embodiment, as shown in Figure 10, the LCD display module 8 includes 12864 liquid crystal displays and slide rheostat Rv5, VDD pin, PSB pin and the LEA pin of 12864 liquid crystal display and one of slide rheostat Rv5 consolidate Fixed end is connect with the 5V voltage output end of 15V to 5V voltage conversion circuit 3-2, and another of the slide rheostat Rv5 is solid Fixed end ground connection, the VO pin of 12864 liquid crystal display are connect with the sliding end of slide rheostat Rv5,12864 liquid The VSS pin and LEK pin of crystal display screen are grounded, the RS pin of 12864 liquid crystal display, R/W pin, E pin, DB0 pin, DB1 pin, DB2 pin, DB3 pin, DB4 pin, DB5 pin, DB6 pin, DB7 pin and RST pin are successively Corresponding the 36th pin, the 37th pin, the 38th pin, the 39th pin, the 40th pin, the 41st with ARM microcontroller LPC2131 Pin, the 44th pin, the 45th pin, the 46th pin, the 47th pin, the 48th pin and the connection of the 52nd pin.

When the utility model is used, voltage sensor 1 detects the charging voltage of charger, voltage signal conditioning electricity The signal that road 4 is used to export voltage sensor 1 improves, and the signal after conditioning is exported and gives ARM microcontroller module 2；Current sensor 7 detects the charging current of charger, and current signal conditioning circuit 5 exports current sensor 7 Signal is improved, and the signal after conditioning is exported to ARM microcontroller module 2, and temperature sensor 9 is used for needing to charge The temperature of the battery of machine charging is measured in real time, and temperature signal regulation circuit 6 carries out the signal that temperature sensor 9 exports Conditioning, and the signal after conditioning is exported to ARM microcontroller module 2；ARM microcontroller module 2 is to received signal It after carrying out A/D conversion, is stored in SD card data memory module 11, the current voltage of charger is shown by LCD display module 8 The working conditions such as signal, current signal and temperature signal, and monitoring is transferred to by WIFI module 12 and WIFI wireless router Processing is further analyzed to data for monitoring computer in computer.

The above is only the preferred embodiment of the utility model, not imposes any restrictions to the utility model, all According to any simple modification to the above embodiments of the utility model technical spirit, change and equivalent structural changes, still Belong in the protection scope of technical solutions of the utility model.

Claims (10)

1. a kind of charger operating state data acquisition and transmission circuit, it is characterised in that: including ARM microcontroller module (2) With the power circuit (3) for each electricity consumption module for power supply in charger operating state data acquisition and transmission circuit, Yi Jiyu SD card data memory module (11) that ARM microcontroller module (2) connects and based on through WIFI wireless router and monitoring The WIFI module (12) that calculation machine is communicated；The input of the ARM microcontroller module (2) is terminated with voltage signal conditioning circuit (4), current signal conditioning circuit (5) and temperature signal regulation circuit (6), the input terminal of the voltage signal conditioning circuit (4) Be connected to the voltage sensor (1) detected for the charging voltage to charger, the current signal conditioning circuit (5) it is defeated Enter the current sensor (7) for being terminated with and being detected for the charging current to charger, the temperature signal regulation circuit (6) Two input terminals be connected to respectively reference voltage circuit (10) and for need charger charge battery temperature carry out The output of the temperature sensor (9) of real-time detection, the ARM microcontroller module (2) is terminated with LCD display module (8)；It is described Power circuit (3) includes 15V Switching Power Supply (3-1) and 15V to the 5V voltage that connect with the output end of 15V Switching Power Supply (3-1) Conversion circuit (3-2), and 5V to the 3.3V voltage conversion electricity being connect with the output end of 15V to 5V voltage conversion circuit (3-2) Road (3-3)；The ARM microcontroller module (2), SD card data memory module (11), WIFI module (12), temperature signal regulation Circuit (6) and reference voltage circuit (10) are connect with the 3.3V voltage output end of 5V to 3.3V voltage conversion circuit (3-3), institute Current signal conditioning circuit (5) is stated to connect with the output end of 15V Switching Power Supply (3-1), the voltage signal conditioning circuit (4), Voltage sensor (1), current sensor (7), temperature sensor (9) and LCD display module (8) are converted with 15V to 5V voltage The output end of circuit (3-2) connects.

2. charger operating state data acquisition described in accordance with the claim 1 and transmission circuit, it is characterised in that: the 15V It include voltage stabilizing chip LM7805, nonpolarity capacitor C11 and nonpolar capacitor C12, the pressure stabilizing to 5V voltage conversion circuit (3-2) The Vin pin of chip LM7805 is connect with the output end of 15V Switching Power Supply (3-1), and is grounded by nonpolarity capacitor C11, institute The Vout pin for stating voltage stabilizing chip LM7805 is the 5V voltage output end of 15V to 5V voltage conversion circuit (3-2), and passes through non-pole Property capacitor C12 ground connection, the voltage stabilizing chip LM7805 GND pin ground connection；5V to 3.3V voltage conversion circuit (3-3) packet Include voltage stabilizing chip SGM2019, nonpolar capacitor C13, nonpolarity capacitor C14 and nonpolar capacitor C15, the voltage stabilizing chip The 1st pin of SGM2019 is connect with the 5V voltage output end of 15V to 5V voltage conversion circuit (3-2), and passes through nonpolar capacitor C13 ground connection, the 2nd pin and the 3rd pin of the voltage stabilizing chip SGM2019 are grounded, and the 4th of the voltage stabilizing chip SGM2019 the Pin is the 3.3V voltage output end of 5V to 3.3V voltage conversion circuit (3-3), and is grounded by nonpolarity capacitor C15, described The 5th pin of voltage stabilizing chip SGM2019 is grounded by nonpolarity capacitor C14.

3. charger operating state data acquisition described in accordance with the claim 1 and transmission circuit, it is characterised in that: the ARM Micro controller module (2) include ARM microcontroller LPC2131 and with the ARM microcontroller LPC2131 crystal oscillating circuit to connect and Reset circuit, the 23rd pin of the ARM microcontroller LPC2131 and the 3.3V electricity of 5V to 3.3V voltage conversion circuit (3-3) Press output end connection；The crystal oscillating circuit includes crystal oscillator XTAL, nonpolarity capacitor Cap1 and nonpolar capacitor Cap2, the crystal oscillator One end of XTAL and one end of nonpolar capacitor Cap1 are connect with the 61st pin of the ARM microcontroller LPC2131, described One end of the other end of crystal oscillator XTAL and nonpolar capacitor Cap2 connect with the 62nd pin of the ARM microcontroller LPC2131 It connects, the other end of the other end of the nonpolarity capacitor Cap1 and nonpolar capacitor Cap2 are grounded；The reset circuit includes Reset key RST, one end of the reset key RST is connect with the 57th pin of the ARM microcontroller LPC2131, described The other end of reset key RST is grounded.

4. charger operating state data acquisition described in accordance with the claim 3 and transmission circuit, it is characterised in that: the SD card Data memory module (11) includes the 1st pin of SDCARD-M and 12 pin plug P4, the SDCARD-M, the 2nd pin, the 3rd draws Foot, the 5th pin, the 7th pin and the 8th pin are corresponding in turn to the 6th pin, the 5th pin, the 4th pin, the 3rd with 12 pin plug P4 Pin, the 2nd pin and the connection of the 1st pin, the 1st pin, the 2nd pin, the 3rd pin, the 4th pin, the 5th of the 12 pin plug P4 Pin and the 6th pin pass through resistance R29, resistance R24, resistance R30, resistance R26, resistance R27 and resistance R28 and 5V respectively and arrive 3.3V the 3.3V voltage output end of voltage conversion circuit (3-3) connects；The 4th pin and 5V to the 3.3V electricity of the SDCARD-M The 3.3V voltage output end of voltage conversion circuit (3-3) connects, and is grounded by nonpolarity capacitor C28；The 6th of the SDCARD-M Pin, the 10th pin and the 11st pin are grounded；The 8th pin, the 9th pin, the 10th pin and the 11st of the 12 pin plug P4 Pin is corresponding in turn to be connected with the 29th pin of the ARM microcontroller LPC2131, the 27th pin, the 30th pin and the 31st pin It connects.

5. charger operating state data acquisition described in accordance with the claim 3 and transmission circuit, it is characterised in that: the WIFI Module (12) includes ESP8266 serial ports WIFI module, and the power pins VCC and 5V of the ESP8266 serial ports WIFI module is arrived The 3.3V voltage output end of 3.3V voltage conversion circuit (3-3) connects, the ground terminal pin of the ESP8266 serial ports WIFI module GND ground connection, the signal sending end pin UART_TX of the ESP8266 serial ports WIFI module and the ARM microcontroller The 34th pin of LPC2131 connects, the signal receiving end pin UART_RX and the ARM of the ESP8266 serial ports WIFI module The 33rd pin of microcontroller LPC2131 connects.

6. charger operating state data acquisition described in accordance with the claim 3 and transmission circuit, it is characterised in that: the voltage Signal conditioning circuit (4) include linear optical coupling isolation chip HCPL-7840, amplifier chip AD8607, nonpolar capacitor C16, Nonpolar capacitor C17, nonpolar capacitor C18, nonpolar capacitor C19, slide rheostat Rv1, slide rheostat Rv2, resistance R11, resistance R12, resistance R13, resistance R14, resistance R15 and resistance R16, the resistance R11 one end be voltage signal input It holds VIN and is connect with the output end of voltage sensor (1), the other end of the resistance R11 and one of slide rheostat Rv1 consolidate Fixed end is connect with the sliding end of slide rheostat Rv1, and is grounded by resistance R12, the linear optical coupling isolation chip HCPL- 7840 IN+ pin is connect with another fixing end of slide rheostat Rv1, and is grounded by nonpolarity capacitor C16, the line IN- pin, GND1 pin and the GND2 pin of property light-coupled isolation chip HCPL-7840 is grounded, the linear optical coupling isolation core The VDD1 pin of piece HCPL-7840 is connect with the 5V voltage output end of 15V to 5V voltage conversion circuit (3-2), and passes through non-pole Property capacitor C17 ground connection, the VDD2 pin of the linear optical coupling isolation chip HCPL-7840 and 15V to 5V voltage conversion circuit (3- 2) 5V voltage output end connection, and be grounded by nonpolarity capacitor C18, the linear optical coupling isolation chip HCPL-7840's VOUT+ pin is connect by resistance R14 with the 3rd pin of amplifier chip AD8607, and is grounded by resistance R15, the line Property light-coupled isolation chip HCPL-7840 VOUT- pin connect by resistance R13 with the 2nd pin of amplifier chip AD8607, The one end of the 2nd pin of the amplifier chip AD8607 and one end of resistance R16 with nonpolar capacitor C19 is all connected with, institute The other end for stating the 1st pin of amplifier chip AD8607, the other end of resistance R16 and nonpolar capacitor C19 becomes with sliding The sliding end and a fixing end connection, another fixing end of the slide rheostat Rv2 for hindering device Rv2 are voltage signal conditioning It the output end VOUT of circuit (4) and is connect with the 13rd pin of ARM microcontroller LPC2131, the amplifier chip AD8607 The 8th pin connect with the 5V voltage output end of 15V to 5V voltage conversion circuit (3-2), the amplifier chip AD8607's 4th pin ground connection.

7. charger operating state data acquisition described in accordance with the claim 3 and transmission circuit, it is characterised in that: the electric current Signal conditioning circuit (5) includes operational amplifier chip LM358, zener diode D11, nonpolar capacitor C20, nonpolar capacitor The 3rd pin and resistance of C21, resistance R17, resistance R18, resistance R19 and resistance R20, the operational amplifier chip LM358 One end of R18 connects, and is grounded by nonpolarity capacitor C20, and the other end of the resistance R18 is current signal input IIN And connect with the output end of current sensor (7), the other end of the resistance R18 is grounded by resistance R17, the operation amplifier The 2nd pin of device chip LM358 and one end of resistance R20 are connect with one end of resistance R19, the other end of the resistance R19 It is connect with one end of nonpolar capacitor C21, the other end, non-of the 1st pin of the operational amplifier chip LM358, resistance R20 The other end of polar capacitor C21 and the cathode of zener diode D11 be the output end IOUT of current signal conditioning circuit (5) and It is connect with the 14th pin of ARM microcontroller LPC2131, the plus earth of the zener diode D11, the operational amplifier The 8th pin of chip LM358 is connect with the output end of 15V Switching Power Supply (3-1), and the 4th of the operational amplifier chip LM358 the Pin ground connection.

8. charger operating state data acquisition described in accordance with the claim 3 and transmission circuit, it is characterised in that: the temperature Signal conditioning circuit (6) includes amplifier chip AD623, nonpolarity capacitor C22 and resistance R24, the amplifier chip AD623 - IN pin the first signal input part TIN1 for being temperature signal regulation circuit (6) and output with reference voltage circuit (10) End the connection ,+IN pin of the amplifier chip AD623 are the first signal input part TIN2 of temperature signal regulation circuit (6) And connect with the output end of temperature sensor (9) ,-RG pin of the amplifier chip AD623 passes through resistance R24 and amplifier + RG the pin of chip AD623 connects ,+Vs the pin and 5V to 3.3V voltage conversion circuit (3- of the amplifier chip AD623 3) 3.3V voltage output end connection, and by nonpolarity capacitor C22 be grounded ,-Vs the pin of the amplifier chip AD623 with REF pin is grounded, and the OUTPUT pin of the amplifier chip AD623 is the output end of temperature signal regulation circuit (6) It TOUT and is connect with the 15th pin of ARM microcontroller LPC2131.

9. the acquisition of charger operating state data and transmission circuit according to claim 8, it is characterised in that: the reference Potential circuit (10) includes concatenated resistance R22 and resistance R23, and one end of resistance R22 and resistance R23 after series connection are arrived with 5V The 3.3V voltage output end of 3.3V voltage conversion circuit (3-3) connects, another termination of resistance R22 and resistance R23 after series connection The connecting pin of ground, the resistance R22 and resistance R23 are the output end of reference voltage circuit (10).

10. charger operating state data acquisition described in accordance with the claim 3 and transmission circuit, it is characterised in that: the LCD Display module (8) include 12864 liquid crystal displays and slide rheostat Rv5, the VDD pin of 12864 liquid crystal display, One fixing end of PSB pin and LEA pin and slide rheostat Rv5 with 15V to 5V voltage conversion circuit (3-2) The connection of 5V voltage output end, another fixing end ground connection of the slide rheostat Rv5, the VO of 12864 liquid crystal display Pin is connect with the sliding end of slide rheostat Rv5, and the VSS pin and LEK pin of 12864 liquid crystal display are grounded, RS pin, R/W pin, E pin, DB0 pin, DB1 pin, DB2 pin, the DB3 pin, DB4 of 12864 liquid crystal display Pin, DB5 pin, DB6 pin, DB7 pin and RST pin be corresponding in turn to the 36th pin of ARM microcontroller LPC2131, 37th pin, the 38th pin, the 39th pin, the 40th pin, the 41st pin, the 44th pin, the 45th pin, the 46th pin, the 47th Pin, the 48th pin and the connection of the 52nd pin.