CN103646468A - Measuring and billing system and electric energy measuring and billing method for wireless charging of electric vehicles - Google Patents

Measuring and billing system and electric energy measuring and billing method for wireless charging of electric vehicles Download PDF

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Publication number
CN103646468A
CN103646468A CN201310446569.6A CN201310446569A CN103646468A CN 103646468 A CN103646468 A CN 103646468A CN 201310446569 A CN201310446569 A CN 201310446569A CN 103646468 A CN103646468 A CN 103646468A
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charging
single
module
controlling unit
chip controlling
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CN201310446569.6A
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CN103646468B (en
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姬军鹏
李金刚
宋辉
陈桂涛
苟俊杰
郑东坡
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西安理工大学
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Abstract

The invention discloses a measuring and billing system and an electric energy measuring and billing method for wireless charging of electric vehicles. The system comprises an electric energy measuring device and a billing and charging system which are connected. The electric energy measuring device comprises a single-chip microcomputer control unit A and a wireless communication module A which are connected. The billing and charging system comprises a single-chip microcomputer control unit B and a wireless communication module B which are connected. The electric energy measuring device is connected with a transmission end which comprises a mains supply, a rectifier and filter circuit A and a resonance inverter which are connected successively. The billing and charging system is further connected with a receiving end which comprises a rectifier and filter circuit B, a DC/DC convertor and a battery which are connected successively. According to the method, charging output power is measured accurately, and the charging amount is calculated accurately; besides, a wireless deduction function is achieved through the wireless communication module, and current charging information and charging expenses are displayed through a liquid crystal display module, accordingly, problems of electric energy measuring and billing and charging during wireless charging of electric vehicles are solved.

Description

The metering and billing system of electric automobile wireless charging and electric energy metrical charging method

Technical field

The invention belongs to electric automobile wireless power transmission technical field, be specifically related to a kind of metering and billing system of electric automobile wireless charging, the invention still further relates to the method that adopts said system to carry out electric energy metrical charging.

Background technology

In recent years, under the pressure of the dual-pressure of energy crisis and environmental protection, pure electric automobile is confirmed as one of main trend of future automobile development.But charging electric vehicle mode and efficiency are a great problems facing now, wireless power transmission mode is because the advantages such as its charging convenience, actual time safety are the inexorable trends of future development.

Relatively traditional charging modes, novel electric automobile wireless charging technology, has the advantages such as convenience, real-time, security.Wireless charging technology tends to maturing day by day, but supporting Electric Energy Metering Technology is still blank with it, the Electric Energy Metering Technology of electric automobile wireless power transmission is different from general Electric Energy Metering Technology, the particular problem that it exists the wireless chargings such as the radio communication of the collection of electrical quantity precise and safety, information data, the metering algorithm based on wireless transmission feature, metering reliability to cause, emphasis of the present invention solves these problems.

Meanwhile, the development need of electric automobile wireless charging technology is equipped with its charging method and corresponding charge system thereof, the certainty that the exploitation definite and system of this charging method is also development.

Summary of the invention

The metering and billing system that the object of this invention is to provide a kind of electric automobile wireless charging, has solved the problem that cannot carry out electric energy metrical and electric energy tariffing in existing electric automobile wireless charging process.

Another object of the present invention is that the method that adopts said system to carry out electric energy metrical charging is provided.

The technical solution used in the present invention is, the metering and billing system of electric automobile wireless charging, comprise the electric power meter and the charging Fare Collection System that are connected, electric power meter comprises Single-chip Controlling unit A and the wireless communication module A being connected, on Single-chip Controlling unit A, be also connected with respectively temperature collect module and electric energy acquisition module, charging Fare Collection System comprises Single-chip Controlling unit B and the wireless communication module B being connected, in Single-chip Controlling unit B, be also connected with respectively IC-card module for reading and writing, data memory module, LCD MODULE, voice cue module, keyboard input module, test circuit for cell status, wireless communication module A is connected communication with wireless communication module B, electric power meter is also connected with sending end, sending end comprises civil power, current rectifying and wave filtering circuit A and the resonance inverter connecting successively, charging Fare Collection System is also connected with receiving end, and receiving end comprises current rectifying and wave filtering circuit B, DC/DC converter and the battery connecting successively.

Another technical scheme of the present invention is, the electric energy metrical charging method of electric automobile wireless charging is specifically implemented according to following steps:

Step 1: electric energy metrical;

Step 2: charging charge.

Step 1 electric energy metrical wherein is specifically implemented according to following steps:

User swipes the card IC-card before IC-card module for reading and writing, IC-card module for reading and writing carries out IC-card identification, if can not identify this card, this card of voice cue module prompting user can not be identified, if can identify, IC-card module for reading and writing is read card information and is sent Single-chip Controlling unit B to, and Single-chip Controlling unit B sends instruction to Single-chip Controlling unit A, Single-chip Controlling unit A controls electric energy acquisition module, and temperature collect module and current rectifying and wave filtering circuit A start working; In electric energy acquisition module collection sending end, voltage, the current analog signal of current rectifying and wave filtering circuit A and resonance inverter, then flow to Single-chip Controlling unit A; Temperature is adopted module and is gathered device and the radiator temperature in current rectifying and wave filtering circuit A and resonance inverter in sending end, flows to Single-chip Controlling unit A; The A/D change-over circuit of A inside, Single-chip Controlling unit is converted to digital signal by simulating signal, and according to the phase relation of the voltage obtaining, current signal, by formula rated output factor, wherein I 1for fundamental current effective value, I is total current effective value, for the phase differential of fundamental current and voltage, power consumption computing formula then: obtain power consumption electric weight=voltage * electric current * power factor * service time; According to the temperature data decision circuitry obtaining overtemperature whether, by judging whether device and radiator temperature surpass rated temperature more than 3 times, judge whether charging circuit exists fault, if circuit abnormality, voice cue module prompting subscriber's line circuit is abnormal, Single-chip Controlling unit A controls charging circuit and quits work, if non-fault Single-chip Controlling unit A transmission instruction charges normal to other modules, and within the set time, current signal and voltage signal are carried out to Fourier transform analysis and find out its fundamental voltage electric current, utilize formula calculate first-harmonic and each harmonic active power, utilize formula S=UI calculating applied power, utilize formula calculate reactive power, utilize formula P=Σ P ncalculate useful power, utilize formula: calculate power consumption power consumption=useful power * service time.

Step 2 charging charge wherein is specifically implemented according to following steps:

After the electric weight of test circuit for cell status detection battery is full of, Single-chip Controlling unit B by wireless communication module A and wireless communication module B radio communication to Single-chip Controlling unit A, Single-chip Controlling unit A turn-offs resonance inverter charging is finished, simultaneously, Single-chip Controlling unit A is by the voltage of being adopted by electric energy acquisition module, the phase difference calculating power factor pf of current signal, and specific formula for calculation is: i wherein 1for fundamental current effective value, I is total current effective value, phase differential for fundamental current and voltage; The voltage of adopting by electric energy acquisition module, current value and power factor formula: obtain power consumption electric weight=voltage * electric current * power factor * service time, then by wireless communication module A and wireless communication module B, transfer to Single-chip Controlling unit B, Single-chip Controlling unit B is information such as charge Customs Assigned Number and name, charging beginning and ending time, charging duration, charge capacity, charging consumption charge, IC-card residue remaining sums, output to LCD MODULE and show, and this information is stored in data memory module;

When Single-chip Controlling unit A judges the temperature overtemperature collecting by temperature collect module, Single-chip Controlling unit A sends delivery of electrical energy shutdown signal first to current rectifying and wave filtering circuit A, stops the transmission of electric energy; Then, by wireless communication module A and wireless communication module B by formula: the power consumption calculating electric weight=voltage * electric current * power factor * service time is by radioing to Single-chip Controlling unit B; Finally, the overtemperature signal wireless Single-chip Controlling unit B of communicating by letter, Single-chip Controlling unit B is sent fault alerting signal to voice cue module, and in LCD MODULE, show the information of this charging process, in user's IC-card, deduct the expense that this charging occurs, meanwhile, store this information to data memory module.

The invention has the beneficial effects as follows: measuring apparatus of the present invention has circuit working state testing circuit, whether extremely can monitor in real time charging circuit, having when abnormal can automatic shutdown circuit, the equipment of protection charging.There is the measuring parameters such as electric current, voltage, power, electric weight, timing, charging expense and can on LCD, show, facilitating user to understand charge information and the charge condition of electric automobile wireless charging.Adopt single-chip computer control system, realized electric energy metrical charging charge intelligent, improved the antijamming capability of device simultaneously.Adopt modular design, reduced the coupling between each function, simplify whole electric power meter and Fare Collection System, reduce costs.The present invention can be widely used in various wireless charging automobiles.

Accompanying drawing explanation

Fig. 1 is the theory diagram of the metering and billing system of electric automobile wireless charging of the present invention;

Fig. 2 is the structural representation of the metering and billing system of electric automobile wireless charging of the present invention;

Fig. 3 is the electric energy metrical charging method process flow diagram of electric automobile wireless charging of the present invention.

In figure, 1. electric power meter, 2. charging Fare Collection System, 3. sending end, 4. receiving end, 5. Single-chip Controlling unit A, 6. wireless communication module A, 7. temperature collect module, 8. electric energy acquisition module, 9. single chip control module B, 10. wireless communication module B, 11.IC card module for reading and writing, 12. data memory modules, 13. LCD MODULE, 14. voice cue module, 15. keyboard input modules, 16. test circuit for cell status, 17. civil powers, 18. current rectifying and wave filtering circuit A, 19. resonance inverters, 20. batteries, 21. current rectifying and wave filtering circuit B, 22.DC/DC converter.

Embodiment

Below in conjunction with the drawings and the specific embodiments, the present invention is described in detail.

The structure of the metering and billing system of electric automobile wireless charging of the present invention, as shown in Figures 1 and 2, comprise the electric power meter 1 and the charging Fare Collection System 2 that are connected, electric power meter 1 comprises Single-chip Controlling unit A5 and the wireless communication module A6 being connected, on Single-chip Controlling unit A5, be also connected with temperature collect module 7 and electric energy acquisition module 8, charging Fare Collection System 2 comprises Single-chip Controlling unit B 9 and the wireless communication module B10 being connected, in Single-chip Controlling unit B 9, be also connected with IC-card module for reading and writing 11, data memory module 12, LCD MODULE 13, voice cue module 14, keyboard input module 15, test circuit for cell status 16, electric power meter 1 is also connected with sending end 3, sending end 3 comprises civil power 17, current rectifying and wave filtering circuit A18 and the resonance inverter 19 connecting successively, charging Fare Collection System 2 is also connected with receiving end 4, and receiving end 4 comprises current rectifying and wave filtering circuit B21, DC/DC converter 22 and the battery 20 connecting successively.

The electric parameters such as the voltage of electric energy acquisition module 8 collection sending ends 3 wherein, electric current, temperature collect module 7 gathers the temperature of current rectifying and wave filtering circuit A power devices.

Electric energy acquisition module 8 and temperature collect module 7 send the simulating signal collecting to Single-chip Controlling unit A5, the A/D change-over circuit of A5 inside, Single-chip Controlling unit is converted to digital signal by simulating signal, and the calculating of being correlated with according to the digital signal obtaining, analyze and judge whether charging circuit exists fault, if non-fault Single-chip Controlling unit A5 transmission instruction charges normal to other modules, and within fixing break period, current signal and voltage signal are carried out to Fourier transform analysis and obtain its fundamental voltage electric current, calculate the active power of first-harmonic and each harmonic, applied power, reactive power, draw useful power and power consumption.

Single-chip Controlling unit A5 wherein sends the performance number, power consumption and the temperature signal that whether there are fault-signal and calculate of its Treatment Analysis judgement to Single-chip Controlling unit B 9 by wireless communication module A6 and wireless communication module B10.

Wireless communication module A6 wherein and wireless communication module B10 application ZigBee wireless communication technology, be characterized in closely, low complex degree, high precision, low-power consumption, low cost.

Test circuit for cell status 16 wherein, is for the detection to battery status, and the information of detection is fed back to Single-chip Controlling unit B 9.

Single-chip Controlling unit B 9 wherein will send instruction to IC-card module for reading and writing 11, LCD MODULE 13, voice cue module 14, wireless communication module B10 after resulting signal processing analysis.

The IC-card that IC-card module for reading and writing 11 wherein is first brushed user carries out identification, read IC-card internal information and feed back to Single-chip Controlling unit B 9, then according to Single-chip Controlling unit B 9 power consumption that transmits, the data such as electricity consumption volume are deducted fees in IC-card, and remaining sum in card is fed back to Single-chip Controlling unit B 9.

LCD MODULE wherein 13 adopts LCD liquid crystal displays for showing the information such as the charging Customs Assigned Number of Single-chip Controlling unit B 9 outputs and name, charging beginning and ending time, charging duration, charge capacity, charging consumption charge, IC-card residue remaining sum.

Voice cue module 14 wherein can be warned prompting to user when charging circuit breaks down or when battery electric quantity is full of, the holding circuit so that user takes appropriate measures.

When circuit breaks down, Single-chip Controlling unit A5 can control the current rectifying and wave filtering circuit termination work of the sending end of wireless charging device, protection charging device automatically.

When battery charging state testing circuit detection battery electric quantity is full of, Single-chip Controlling unit B 9 can be controlled the DC/DC converter 22 circuit termination work of the receiving end 4 of wireless charging device automatically, termination signal is sent to the current rectifying and wave filtering circuit A18 termination work that Single-chip Controlling unit A5 controls the sending end 3 of wireless charging transposition simultaneously.

The electric energy metrical charging method of electric automobile wireless charging of the present invention, as shown in Figures 2 and 3, specifically according to following steps, implement:

Step 1: electric energy metrical;

User swipes the card IC-card before IC-card module for reading and writing 11, IC-card module for reading and writing 11 carries out IC-card identification, if can not identify this card, voice cue module 14 can not be identified by this card of prompting user, if can identify, IC-card module for reading and writing 11 will be read card information and send Single-chip Controlling unit B 9 to, Single-chip Controlling unit B 9 will send instruction to Single-chip Controlling unit A5, Single-chip Controlling unit A5 controls electric energy acquisition module 8, temperature collect module 7, and current rectifying and wave filtering circuit A18 starts working.In electric energy acquisition module 8 collection sending ends 3, voltage, the current analog signal of current rectifying and wave filtering circuit A18 and resonance inverter 19, then flow to Single-chip Controlling unit A5; Temperature is adopted module 7 and is gathered device and the radiator temperature in current rectifying and wave filtering circuit A18 and resonance inverter 19 in sending ends 3, flows to Single-chip Controlling unit A5.The A/D change-over circuit of A5 inside, Single-chip Controlling unit is converted to digital signal by simulating signal, and according to the phase relation of the voltage obtaining, current signal, first by formula (I wherein 1for fundamental current effective value, I is total current effective value, phase differential for fundamental current and voltage) rated output factor, then power consumption computing formula: electric weight (degree)=voltage (kilovolt) * electric current (ampere) * power factor * service time (hour) power consumption obtained; According to the temperature data decision circuitry obtaining overtemperature whether, by judging whether device and radiator temperature surpass rated temperature more than 3 times, just can judge whether charging circuit exists fault, if circuit abnormality, voice cue module prompting subscriber's line circuit is abnormal, Single-chip Controlling unit A5 controls charging circuit and quits work, if non-fault Single-chip Controlling unit A5 transmission instruction charges normal to other modules, and within the set time, current signal and voltage signal are carried out to Fourier transform analysis and find out its fundamental voltage electric current, utilize formula calculate first-harmonic and each harmonic active power, utilize formula S=UI calculating applied power, utilize formula calculate reactive power, utilize formula P=Σ P ncalculate useful power, utilize formula: calculate power consumption power consumption=useful power (P) * service time (t).

Step 2: charging charge.

After the electric weight of test circuit for cell status 16 detection batteries 20 is full of, Single-chip Controlling unit B 9 by wireless communication module A6 and wireless communication module B10 radio communication to Single-chip Controlling unit A5, Single-chip Controlling unit A5 finishes charging shutoff resonance inverter 19, simultaneously, Single-chip Controlling unit A5 is by the voltage of being adopted by electric energy acquisition module 8, the phase difference calculating power factor pf of current signal, and specific formula for calculation is: (I wherein 1for fundamental current effective value, I is total current effective value, phase differential for fundamental current and voltage), the voltage of adopting by electric energy acquisition module 8, current value and power factor formula: electric weight (degree)=voltage (kilovolt) * electric current (ampere) * power factor * service time (hour) power consumption obtained, then by wireless communication module A6 and wireless communication module B10, transfer to Single-chip Controlling unit B 9, Single-chip Controlling unit B 9 is charging Customs Assigned Number and name, the charging beginning and ending time, charging duration, charge capacity, charging consumption charge, the information such as IC-card residue remaining sum, outputing to LCD MODULE 13 shows, and this information is stored in data memory module.

When Single-chip Controlling unit A5 judges the temperature overtemperature collecting by temperature collect module 7, Single-chip Controlling unit A5 sends delivery of electrical energy shutdown signal first to current rectifying and wave filtering circuit A18, stops the transmission of electric energy; Then, by wireless communication module A6 and wireless communication module B10 by formula: electric weight (degree)=voltage (kilovolt) * electric current (ampere) * power factor * service time (hour) obtain power consumption by radioing to Single-chip Controlling unit B 9.Finally, the overtemperature signal wireless Single-chip Controlling unit B 9 of communicating by letter, Single-chip Controlling unit B 9 sends fault alerting signal to voice cue module 14, and in LCD MODULE 13, show the information of this charging process, in user's IC-card, deduct the expense that this charging occurs, meanwhile, store this information to data memory module 12.

The invention solves the measurement problem of electric automobile wireless charging process electric energy, expanded the function of electric automobile wireless charging device, met the technical requirement of electric automobile wireless charging developing direction.Also solved electric energy tariffing problem in wireless charging process, for charging electric vehicle, popularize on a large scale and established billing technology basis simultaneously.

Claims (6)

1. the metering and billing system of electric automobile wireless charging, it is characterized in that, comprise the electric power meter (1) and the charging Fare Collection System (2) that are connected, described electric power meter (1) comprises the Single-chip Controlling unit A(5 being connected) and wireless communication module A(6), described charging Fare Collection System (2) comprises Single-chip Controlling unit B (9) and the wireless communication module B(10 being connected), described wireless communication module A(6) with wireless communication module B(10) be connected communication; Described electric power meter (1) is also connected with sending end (3), sending end (3) comprises civil power (17), the current rectifying and wave filtering circuit A(18 connecting successively) and resonance inverter (19), described charging Fare Collection System (2) is also connected with receiving end (4), and receiving end (4) comprises successively the current rectifying and wave filtering circuit B(21 connecting), DC/DC converter (22) and battery (20).
2. the metering and billing system of electric automobile wireless charging according to claim 1, is characterized in that, described Single-chip Controlling unit A(5) on be also connected with respectively temperature collect module (7) and electric energy acquisition module (8).
3. the metering and billing system of electric automobile wireless charging according to claim 1, it is characterized in that, in described Single-chip Controlling unit B (9), be also connected with respectively IC-card module for reading and writing (11), data memory module (12), LCD MODULE (13), voice cue module (14), keyboard input module (15), test circuit for cell status (16).
4. the electric energy metrical charging method of electric automobile wireless charging, it is characterized in that, adopt the metering and billing system of electric automobile wireless charging, it is characterized in that, comprise the electric power meter (1) and the charging Fare Collection System (2) that are connected, described electric power meter (1) comprises the Single-chip Controlling unit A(5 being connected) and wireless communication module A(6), Single-chip Controlling unit A(5) on, be also connected with respectively temperature collect module (7) and electric energy acquisition module (8), described charging Fare Collection System (2) comprises Single-chip Controlling unit B (9) and the wireless communication module B(10 being connected), in Single-chip Controlling unit B (9), be also connected with respectively IC-card module for reading and writing (11), data memory module (12), LCD MODULE (13), voice cue module (14), keyboard input module (15), test circuit for cell status (16), described wireless communication module A(6) with wireless communication module B(10) be connected communication, described electric power meter (1) is also connected with sending end (3), sending end (3) comprises civil power (17), the current rectifying and wave filtering circuit A(18 connecting successively) and resonance inverter (19), described charging Fare Collection System (2) is also connected with receiving end (4), and receiving end (4) comprises successively the current rectifying and wave filtering circuit B(21 connecting), DC/DC converter (22) and battery (20),
Specifically according to following steps, implement:
Step 1: electric energy metrical;
Step 2: charging charge.
5. the electric energy metrical charging method of electric automobile wireless charging according to claim 4, is characterized in that, described step 1 electric energy metrical is specifically implemented according to following steps:
User by IC-card front the swiping the card of IC-card module for reading and writing (11), IC-card module for reading and writing (11) carries out IC-card identification, if can not identify this card, this card of voice cue module (14) prompting user can not be identified, if can identify, IC-card module for reading and writing (11) is read card information and is sent Single-chip Controlling unit B (9) to, Single-chip Controlling unit B (9) sends instruction to Single-chip Controlling unit A(5), Single-chip Controlling unit A(5) control electric energy acquisition module (8), temperature collect module (7) and current rectifying and wave filtering circuit A(18) start working; Electric energy acquisition module (8) gathers current rectifying and wave filtering circuit A(18 in sending end (3)) with voltage, the current analog signal of resonance inverter (19), then flow to Single-chip Controlling unit A(5); Temperature is adopted module (7) and is gathered current rectifying and wave filtering circuit A(18 in sending end (3)) with resonance inverter (19) in device and radiator temperature, flow to Single-chip Controlling unit A(5); Single-chip Controlling unit A(5) inner A/D change-over circuit is converted to digital signal by simulating signal, and according to the phase relation of the voltage obtaining, current signal, by formula rated output factor, wherein I 1for fundamental current effective value, I is total current effective value, for the phase differential of fundamental current and voltage, power consumption computing formula then: obtain power consumption electric weight=voltage * electric current * power factor * service time; According to the temperature data decision circuitry obtaining overtemperature whether, by judging whether device and radiator temperature surpass rated temperature more than 3 times, judge whether charging circuit exists fault, if circuit abnormality, voice cue module prompting subscriber's line circuit is abnormal, Single-chip Controlling unit A(5) controlling charging circuit quits work, if non-fault is Single-chip Controlling unit A(5) send instruction and charge normal to other modules, and within the set time, current signal and voltage signal are carried out to Fourier transform analysis and find out its fundamental voltage electric current, utilize formula calculate first-harmonic and each harmonic active power, utilize formula S=UI calculating applied power, utilize formula calculate reactive power, utilize formula P=Σ P ncalculate useful power, utilize formula: calculate power consumption power consumption=useful power * service time.
6. the electric energy metrical charging method of electric automobile wireless charging according to claim 4, is characterized in that, described step 2 charging charge is specifically implemented according to following steps:
After the electric weight of test circuit for cell status (16) detection battery (20) is full of, Single-chip Controlling unit B (9) is by wireless communication module A(6) with wireless communication module B(10) radio communication is to Single-chip Controlling unit A(5), Single-chip Controlling unit A(5) turn-offing resonance inverter (19) finishes charging, simultaneously, Single-chip Controlling unit A(5) by the voltage of being adopted by electric energy acquisition module (8), the phase difference calculating power factor pf of current signal, specific formula for calculation is: i wherein 1for fundamental current effective value, I is total current effective value, phase differential for fundamental current and voltage, the voltage of adopting by electric energy acquisition module (8), current value and power factor formula: obtain power consumption electric weight=voltage * electric current * power factor * service time, then by wireless communication module A(6) with wireless communication module B(10) transfer to Single-chip Controlling unit B (9), Single-chip Controlling unit B (9) is charging Customs Assigned Number and name, the charging beginning and ending time, charging duration, charge capacity, charging consumption charge, the information such as IC-card residue remaining sum, outputing to LCD MODULE (13) shows, and this information is stored in data memory module,
As Single-chip Controlling unit A(5) judgement by temperature collect module (7), collect temperature overtemperature time, Single-chip Controlling unit A(5) first to current rectifying and wave filtering circuit A(18) send delivery of electrical energy shutdown signal, stop the transmission of electric energy; Then, by wireless communication module A(6) with wireless communication module B(10) by formula: the power consumption calculating electric weight=voltage * electric current * power factor * service time is by radioing to Single-chip Controlling unit B (9); Finally, the overtemperature signal wireless Single-chip Controlling unit B (9) of communicating by letter, Single-chip Controlling unit B (9) sends fault alerting signal to voice cue module (14), and in the upper information that shows this charging process of LCD MODULE (13), in user's IC-card, deduct the expense that this charging occurs, meanwhile, store this information to data memory module (12).
CN201310446569.6A 2013-09-26 2013-09-26 The metering and billing system of electric automobile wireless charging and electric energy metrical charging method CN103646468B (en)

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CN104037918A (en) * 2014-07-08 2014-09-10 江苏天行健汽车科技有限公司 Wireless charging system and method for magnetic resonance type vehicle-mounted mobile terminal
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CN106787035A (en) * 2015-11-20 2017-05-31 沈阳新松机器人自动化股份有限公司 Wireless charging dispensing device, reception device, system and method
CN108575109A (en) * 2016-04-20 2018-09-25 株式会社日立产机系统 Power inverter and power inverter manage system
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