CN208351614U - A kind of charging heap Charging Detail Record unit based on CAN communication - Google Patents
A kind of charging heap Charging Detail Record unit based on CAN communication Download PDFInfo
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- CN208351614U CN208351614U CN201821170810.1U CN201821170810U CN208351614U CN 208351614 U CN208351614 U CN 208351614U CN 201821170810 U CN201821170810 U CN 201821170810U CN 208351614 U CN208351614 U CN 208351614U
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Abstract
The utility model discloses a kind of charging heap Charging Detail Record unit based on CAN communication, including data collector, variable gain control, AD converter, control follower, serial line interface, memory, microcontroller, power supply, CAN interface module, display, host computer, pay imformation confirmation module, power grid electric energy collection module, data collector is unidirectionally connect with variable gain control communication, variable gain control is unidirectionally connect with AD converter communication, AD converter is unidirectionally connect with micro-controller communications, microcontroller is unidirectionally connect with control follower communication, serial line interface is bi-directionally connected with micro-controller communications, memory is bi-directionally connected with micro-controller communications, CAN interface module is bi-directionally connected with micro-controller communications.The utility model provides expense for charge unit and checks mechanism, substantially increases the accuracy of pay imformation, while can also pass through；It goes wrong in the poor ratio in judgement system of two cost informations with the presence or absence of equipment, facilitates to maintain equipment.
Description
Technical field
The utility model relates to electric energy fields, and in particular to a kind of charging heap Charging Detail Record unit based on CAN communication.
Background technique
The function of charging pile is similar to the fuel charger inside gas station, can be fixed on ground or wall, be installed on public
It builds in (public building, market, Public Parking etc.) and residential area parking lot or charging station, it can be according to different voltage
Grade is that the electric car of various models charges.The input terminal of electronic dress is directly connected to AC network, and output end, which is equipped with, to be filled
Plug is used to charge for electric car.Traditional charging pile needs one, a vehicle, this means that a vehicle needs one and stops
Parking stall needs to occupy in this way the notch that a large amount of soil is just able to satisfy current charging pile, and current soil is resource most in short supply
One of.The heap that charges is opposite with charging pile, and the heap that charges is generally referred to as box charging equipment, that is, all the charging module at whole station
It concentrates in together, becomes the heap of the charging module of a concentration, charging module has reformed into centralized control, and charging heap is equivalent to
Multiple charging guns are set on a charging pile, the power of the charging gun of charging heap can not only be uniformly controlled in this way, moreover it is possible to subtract
Few occupied area, further improves the efficiency of electric car charging.Accuracy, the peace of the charging heap Charging Detail Record unit of charging heap
Full property and reliability are directly related to reliability service and the development in an all-round way of electric car, and charge system detection project before factory
Incomplete, the metering for relying solely on electric energy meter carries out charging, is detected, is caused again to Charging Detail Record unit without feedback system
The accuracy of user's charging is not high in actual use.
Utility model content
Technical problem to be solved in the utility model is that the charging system accuracy of charging heap in the prior art is lower,
The equivalence between charging charge is not can guarantee, the heap holder that either charges to user causes stealthy consumption, it is therefore intended that mentions
For a kind of charging heap Charging Detail Record unit based on CAN communication, the double-deck Expense Computing System is introduced, improves the charging system of charging heap
Accuracy.
The utility model is achieved through the following technical solutions:
A kind of charging heap Charging Detail Record unit based on CAN communication, including data collector, variable gain control, AD conversion
Device, control follower, serial line interface, memory, microcontroller, power supply, CAN interface module, display, host computer, charge letter
Cease confirmation module, power grid electric energy collection module, the data collector and variable gain control are communicated and are unidirectionally connect, it is described can
Gain-scheduling control device is unidirectionally connect with AD converter communication, and the AD converter is unidirectionally connect with micro-controller communications, described micro-
Controller is unidirectionally connect with control follower communication, and the serial line interface is bi-directionally connected with micro-controller communications, the memory
It is bi-directionally connected with micro-controller communications, the CAN interface module is bi-directionally connected with micro-controller communications, the host computer and CAN
Interface module communication is bi-directionally connected, and the pay imformation confirmation module is communicated with host computer to be bi-directionally connected, and the power grid electric energy is adopted
Collection module is communicated with pay imformation confirmation module to be bi-directionally connected, and the display is unidirectionally connect with micro-controller communications；The electricity
Source is connect with microcontroller；
The data collector is used to acquire the voltage and current information of charging pile；The variable gain control is for controlling
The gain of amplifier processed, to control the amplitude variable quantity of output signal；The AD converter is used for the conversion of modulus signal；Institute
The output that control follower is stated for external memory controls；The serial line interface is for connecting external equipment；The memory
For storing data；The CAN interface module is for the signal circulation between microcontroller and host computer；The power grid electric energy is adopted
Collection module is for acquiring power grid power consumption information；The pay imformation confirmation module by power grid electric energy collection module for being adopted
The information collected is calculated to obtain cost information B and is transmitted to host computer to expense；The display is for showing charging phase
The necessary information of pass；The power supply is used to provide electric energy for microcontroller；The microcontroller for receiving data adopt by collector
The voltage and current message that collects simultaneously is calculated to obtain cost information A and is transmitted to host computer to the expense of relevant information；Institute
Host computer is stated for receiving information and being handled information, send instruction, and receives cost information A and cost information B, and right
Cost information A and cost information B carry out accounting comparison, obtain ultimate cost information C.
User is electric car charging using charging heap, and the power consumption generated that charges is one-side by charging heap
Operator provide, the accuracy of data that operator provides directly determines that user will hand over how many charging expenses, if fortune
The accuracy for seeking the data that quotient provides is lower, and either data volume is on the high side or on the low side, for the fortune of charge user and charging heap
Seeking commercial city is a kind of loss.In the prior art, charge heap power consumption mainly for charging heap terminal output for measurement mesh
Mark, but the data sheet one measured, it is usual that a monitoring point is only set, if since the measuring device of terminal output generates event
Barrier, the error in data of output, it will be difficult to be found, to solve the above-mentioned problems, the utility model is provided with two monitoring points, produces
Raw two kinds of electricity consumption datas, to pass through the accuracy of the comparative further data for promoting power consumption of judgement.This
Utility model detects the power output in the single charging pile of charging heap using data collector, the data packet of detection
Electric current and voltage are included, the analog signal of collected voltage and current is promoted phase by variable gain control by data collector
The stability of data is answered, then analog signal transmission to AD converter is carried out to the conversion of analog to digital, microcontroller can be received
Data are digital signal, after microcontroller receives digital signal, to the digital signal of electric current and voltage carry out multiplication process according to
It is secondary to obtain energy information and cost information A；Meanwhile total electric energy input of charging heap, electricity is arranged in power grid electric energy collection module
Net electric energy collection module can acquire the power output of charging gun all in a charging heap, the acquisition of power grid electric energy collection module
Data and data collector acquisition data between there is no any association, belong to two independent acquisition devices, power grid electric energy
The collected energy information of acquisition module and corresponding single charging gun it is corresponding (such as a charging heap has 4 charging guns,
And the acquisition of power grid electric energy collection module be 4 charging guns output, generation is 4 independent data of charging gun, and
It is not the total data of 4 charging guns), calculate by the expense that pay imformation confirmation module generates single charging gun
To cost information B.The cost information A that microcontroller obtains is transmitted to host computer by CAN interface module, and pay imformation confirms mould
The cost information B that block generates is exported to host computer, and host computer is by comparing cost information A and cost information B, if taken
Equal with information A and cost information B, then host computer show that a cost information C, cost information C are equal to equal to cost information B and take
With information A, host computer exports cost information C to microcontroller, and microcontroller is exported as final result to display；
If cost information A and cost information B are unequal, two kinds of situations are generated, when cost information A and cost information B difference reaches
Certain ratio X, host computer prompt system break down, check equipment immediately, obtain reason, guarantee the normal operation shape of equipment
State；When cost information A and cost information B difference be less than the ratio X, then using the average value of cost information A and cost information B as
Cost information C, host computer export cost information C to microcontroller, and microcontroller is exported as final result to display
Device；Simultaneously cost information A and cost information B difference be less than the ratio such case can be used as system debug and overhaul of the equipments with
And the improved data of system are supported.
Further, data collector includes current sensor and voltage sensor, the current sensor be connected on by
In slowdown monitoring circuit, the voltage sensor is connected in parallel in circuit-under-test.
The utility model is acquired data using current sensor and voltage sensor, and the detailed of data can be improved
Degree can be used as the adjustment data of ratio X when later data is comprehensive.
Further, the memory includes SDRAM, NOR FLASH, NAND FLASH.SDRAM is big with capacity, deposits
The features such as taking speed fast and is at low cost executes code and variable etc. for storing, and FLASH, that is, nonvolatile memory is used to
It stores program code, constant table and needs data to be saved.SDRAM uses HY57V281620, NOR FLASH to use
AM29LV160DB, NAND FLASH use K9F1208U.
Further, the CAN interface module uses MCP2515.
Further, power grid electric energy collection module uses electric energy meter.
Further, pay imformation confirmation module uses multiplier.
The utility model compared with prior art, has the following advantages and benefits: the utility model uses data
Two independent data acquisition devices of collector and power grid electric energy collection module, two independent data acquisition devices respectively generate
One cost information, then two cost informations are analyzed and processed to obtain final cost information by host computer, for charge
Unit provides expense check mechanism, substantially increases the accuracy of pay imformation, while can also pass through；Two cost informations
Poor ratio in judgement system in go wrong with the presence or absence of equipment, facilitate to maintain equipment.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the utility model embodiment, constitutes the one of the application
Part does not constitute the restriction to the utility model embodiment.In the accompanying drawings:
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the utility model CAN interface electrical block diagram；
Fig. 3 is the utility model power module circuitry structural schematic diagram；
Fig. 4 is the utility model AD converter electrical block diagram.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below with reference to embodiment and attached drawing,
The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this
Utility model is not intended to limit the scope of the present invention.
Embodiment
As shown in Figure 1, a kind of charging heap Charging Detail Record unit based on CAN communication, including data collector, Distinct matrix
It is device, AD converter, control follower, serial line interface, memory, microcontroller, power supply, CAN interface module, display, upper
Machine, pay imformation confirmation module, power grid electric energy collection module, the data collector is communicated with variable gain control unidirectionally to be connected
It connects, the variable gain control is unidirectionally connect with AD converter communication, and the AD converter unidirectionally connects with micro-controller communications
It connects, the microcontroller is unidirectionally connect with control follower communication, and the serial line interface is bi-directionally connected with micro-controller communications, institute
It states memory to be bi-directionally connected with micro-controller communications, the CAN interface module is bi-directionally connected with micro-controller communications, described upper
Machine is communicated with CAN interface module and is bi-directionally connected, and the pay imformation confirmation module is communicated with host computer to be bi-directionally connected, the power grid
Electric energy collection module is communicated with pay imformation confirmation module and is bi-directionally connected, and the display is unidirectionally connect with micro-controller communications；
The power supply is connect with microcontroller；
The data collector is used to acquire the voltage and current information of charging pile；The variable gain control is for controlling
The gain of amplifier processed, to control the amplitude variable quantity of output signal, variable gain control uses digital variable charge
Amplifier；The AD converter is used for the conversion of modulus signal, as shown in figure 4, AD converter uses ADS7805；The control
Output of the follower for external memory controls, and controls and is completed between follower and microcontroller by one DAC712 of setting
Digital-to-analogue conversion；The serial line interface is for connecting external equipment；The memory is for storing data；The CAN interface module
For the signal circulation between microcontroller and host computer, it is illustrated in figure 2 the circuit diagram of CAN interface module；The electricity
Net electric energy collection module is for acquiring power grid power consumption information；The pay imformation confirmation module by power grid electric energy for being adopted
The collection collected information of module is calculated to obtain cost information B and is transmitted to host computer to expense；The display is for showing
Show the relevant necessary information of charging, the display uses T240128；The power supply is used to provide electric energy for microcontroller, such as
Fig. 3 is power circuit schematic diagram, and 8V is switched to the available 5V power supply of microcontroller；The microcontroller acquires for receiving data
The collected voltage and current message of device is simultaneously calculated to obtain cost information A and be transmitted to upper to the expense of relevant information
Machine, microcontroller use AT91RM9200；The host computer is used to receive information and handle information, send instruction, and
Cost information A and cost information B is received, and accounting comparison is carried out to cost information A and cost information B, show that ultimate cost is believed
Cease C.
User is electric car charging using charging heap, and the power consumption generated that charges is one-side by charging heap
Operator provide, the accuracy of data that operator provides directly determines that user will hand over how many charging expenses, if fortune
The accuracy for seeking the data that quotient provides is lower, and either data volume is on the high side or on the low side, for the fortune of charge user and charging heap
Seeking commercial city is a kind of loss.In the prior art, charge heap power consumption mainly for charging heap terminal output for measurement mesh
Mark, but the data sheet one measured, it is usual that a monitoring point is only set, if since the measuring device of terminal output generates event
Barrier, the error in data of output, it will be difficult to be found, to solve the above-mentioned problems, the present embodiment is provided with two monitoring points, generates
Two kinds of electricity consumption datas, to pass through the accuracy of the comparative further data for promoting power consumption of judgement.This reality
It applies example and the power output in the single charging pile of charging heap is detected using data collector, the data of detection include electricity
The analog signal of collected voltage and current is promoted respective counts by variable gain control by stream and voltage, data collector
According to stability, then analog signal transmission to AD converter is carried out to the conversion of analog to digital, microcontroller can received data
For digital signal, after microcontroller receives digital signal, multiplication process is carried out to the digital signal of electric current and voltage and is successively obtained
To energy information and cost information A；Meanwhile total electric energy input of charging heap, power grid electricity is arranged in power grid electric energy collection module
Energy acquisition module can acquire the power output of charging gun all in a charging heap, the number of power grid electric energy collection module acquisition
There is no any association between the data acquired according to data collector, belongs to two independent acquisition devices, power grid electric energy acquisition
The collected energy information of module and corresponding single charging gun are corresponding, and (such as a charging heap has 4 charging guns, and one
What a power grid electric energy collection module acquired is the output of 4 charging guns, and generation is 4 independent data of charging gun, rather than 4
The total data of a charging gun), by the expense that pay imformation confirmation module generates single charging gun carry out that expense is calculated
With information B.The cost information A that microcontroller obtains is transmitted to host computer by CAN interface module, and pay imformation confirmation module produces
Raw cost information B is exported to host computer, and host computer is by comparing cost information A and cost information B, if expense is believed
It is equal to cease A and cost information B, then host computer show that a cost information C, cost information C are equal to cost information B and believe equal to expense
A is ceased, host computer exports cost information C to microcontroller, and microcontroller is exported as final result to display；If
Cost information A and cost information B are unequal, then generate two kinds of situations, when cost information A and cost information B difference reaches certain
Ratio X, host computer prompt system break down, check equipment immediately, obtain reason, guarantee the normal operating condition of equipment；When
Cost information A and cost information B difference is less than the ratio X, then using the average value of cost information A and cost information B as expense
Information C, host computer export cost information C to microcontroller, and microcontroller is exported as final result to display；Together
When cost information A and cost information B difference be less than the ratio such case can be used as system debug and overhaul of the equipments and be
Improved data of uniting are supported.
Further, data collector includes current sensor and voltage sensor, the current sensor be connected on by
In slowdown monitoring circuit, the voltage sensor is connected in parallel in circuit-under-test.
The present embodiment is acquired data using current sensor and voltage sensor, and the detailed journey of data can be improved
Degree can be used as the adjustment data of ratio X when later data is comprehensive.
Further, the memory includes SDRAM, NOR FLASH, NAND FLASH.SDRAM is big with capacity, deposits
The features such as taking speed fast and is at low cost executes code and variable etc. for storing, and FLASH, that is, nonvolatile memory is used to
It stores program code, constant table and needs data to be saved.SDRAM uses HY57V281620, NOR FLASH to use
AM29LV160DB, NAND FLASH use K9F1208U.
Further, the CAN interface module uses MCP2515.
Further, power grid electric energy collection module uses electric energy meter.
Further, pay imformation confirmation module uses multiplier.
Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model
Determine the protection scope of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced
It changes, improve, should be included within the scope of protection of this utility model.
Claims (6)
1. a kind of charging heap Charging Detail Record unit based on CAN communication, which is characterized in that including data collector, Distinct matrix
It is device, AD converter, control follower, serial line interface, memory, microcontroller, power supply, CAN interface module, display, upper
Machine, pay imformation confirmation module, power grid electric energy collection module, the data collector is communicated with variable gain control unidirectionally to be connected
It connects, the variable gain control is unidirectionally connect with AD converter communication, and the AD converter unidirectionally connects with micro-controller communications
It connects, the microcontroller is unidirectionally connect with control follower communication, and the serial line interface is bi-directionally connected with micro-controller communications, institute
It states memory to be bi-directionally connected with micro-controller communications, the CAN interface module is bi-directionally connected with micro-controller communications, described upper
Machine is communicated with CAN interface module and is bi-directionally connected, and the pay imformation confirmation module is communicated with host computer to be bi-directionally connected, the power grid
Electric energy collection module is communicated with pay imformation confirmation module and is bi-directionally connected, and the display is unidirectionally connect with micro-controller communications；
The power supply is connect with microcontroller；
The data collector is used to acquire the voltage and current information of charging pile；The variable gain control is put for controlling
The gain of big device, to control the amplitude variable quantity of output signal；The AD converter is used for the conversion of modulus signal；The control
Output of the follower processed for external memory controls；The serial line interface is for connecting external equipment；The memory is used for
Storing data；The CAN interface module is for the signal circulation between microcontroller and host computer；The power grid electric energy acquisition mould
Block is for acquiring power grid power consumption information；The pay imformation confirmation module by power grid electric energy collection module for being collected
Information expense is calculated to obtain cost information B and is transmitted to host computer；The display is relevant for showing charging
Necessary information；The power supply is used to provide electric energy for microcontroller；Collector collects the microcontroller for receiving data
Voltage and current message and the expense of relevant information is calculated to obtain cost information A and is transmitted to host computer；On described
Position machine receives cost information A and cost information B, and to expense for receiving information and being handled information, send instruction
Information A and cost information B carry out accounting comparison, obtain ultimate cost information C.
2. a kind of charging heap Charging Detail Record unit based on CAN communication according to claim 1, which is characterized in that data acquisition
Device includes current sensor and voltage sensor, and the current sensor is connected in circuit-under-test, and the voltage sensor is simultaneously
It is associated in circuit-under-test.
3. a kind of charging heap Charging Detail Record unit based on CAN communication according to claim 1, which is characterized in that the storage
Device includes SDRAM, NOR FLASH, NAND FLASH.
4. a kind of charging heap Charging Detail Record unit based on CAN communication according to claim 1, which is characterized in that the CAN connects
Mouth mold block uses MCP2515.
5. a kind of charging heap Charging Detail Record unit based on CAN communication according to claim 1, which is characterized in that power grid electric energy
Acquisition module uses electric energy meter.
6. a kind of charging heap Charging Detail Record unit based on CAN communication according to claim 1, which is characterized in that the charge
Validation of information module uses multiplier.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821170810.1U CN208351614U (en) | 2018-07-23 | 2018-07-23 | A kind of charging heap Charging Detail Record unit based on CAN communication |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821170810.1U CN208351614U (en) | 2018-07-23 | 2018-07-23 | A kind of charging heap Charging Detail Record unit based on CAN communication |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110843576A (en) * | 2019-11-19 | 2020-02-28 | 安徽天鹏电子科技有限公司 | Fill electric pile with license plate number reads function |
| CN113570783A (en) * | 2021-08-04 | 2021-10-29 | 特瓦特能源科技有限公司 | Charging and billing method and related equipment |
-
2018
- 2018-07-23 CN CN201821170810.1U patent/CN208351614U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110843576A (en) * | 2019-11-19 | 2020-02-28 | 安徽天鹏电子科技有限公司 | Fill electric pile with license plate number reads function |
| CN110843576B (en) * | 2019-11-19 | 2021-02-23 | 安徽天鹏电子科技有限公司 | Fill electric pile with license plate number reads function |
| CN113570783A (en) * | 2021-08-04 | 2021-10-29 | 特瓦特能源科技有限公司 | Charging and billing method and related equipment |
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