CN112162232A - Remote verification device and method for alternating-current charging pile - Google Patents
Remote verification device and method for alternating-current charging pile Download PDFInfo
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- CN112162232A CN112162232A CN202010867386.1A CN202010867386A CN112162232A CN 112162232 A CN112162232 A CN 112162232A CN 202010867386 A CN202010867386 A CN 202010867386A CN 112162232 A CN112162232 A CN 112162232A
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- 230000010354 integration Effects 0.000 claims abstract description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 5
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
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Abstract
The invention discloses a remote calibration device and method for an alternating current charging pile, and belongs to the technical field of electric energy metering. The device of the invention comprises: the sampling module is used for collecting voltage/current signals in the charging process of the alternating-current charging pile to be tested and transmitting the voltage/current signals to the sampling CPU; the sampling CPU receives the voltage/current signals collected by the sampling module, performs electric energy integration on the voltage/current signals to obtain an electric energy value, and outputs standard electric energy meter pulses according to the electric energy value and preset turns; the verification module is used for acquiring the pulse number of the standard electric energy meter and the pulse number of the to-be-detected alternating-current charging pile, comparing the pulse number of the standard electric energy meter and the pulse number of the to-be-detected meter to obtain an error value, verifying the to-be-detected alternating-current charging pile according to the error value and obtaining a verification result. The device adopts an integrated design, has light weight, occupies small area, is light in weight, is more portable and has higher precision compared with the prior art.
Description
Technical Field
The invention relates to the technical field of electric energy metering, in particular to a remote calibrating device and method for an alternating current charging pile
Background
At present, electric automobile charging piles are listed in a catalogue of a metering device which is forcibly verified by a market supervision and management bureau, the requirement is listed in the catalogue of the metering device with a V (forcible verification) supervision mode, forcible verification is accepted in use, the charging piles serve as a new comprehensive industry, a plurality of new requirements are provided for metering and verification work, after a gun is designed, a current point is automatically selected by equipment according to a flow, metering parameters are automatically collected, errors are calculated, and a measuring result is uploaded to an integrated verification device of a management background in a wireless mode.
Disclosure of Invention
In order to solve the above problems, the present invention provides a remote calibration apparatus for an ac charging pile, including:
the sampling module is connected with the alternating current charging pile to be tested, the alternating current charging pile to be tested is in a charging state of a charging automobile, voltage/current signals in the charging process of the alternating current charging pile to be tested are collected, and the voltage/current signals are transmitted to the sampling CPU;
the sampling CPU receives the voltage/current signals collected by the sampling module, performs electric energy integration on the voltage/current signals to obtain an electric energy value, and outputs standard electric energy meter pulses according to the electric energy value and preset turns;
the verification module is used for acquiring the pulse number of the standard electric energy meter and the pulse number of the to-be-detected alternating-current charging pile, comparing the pulse number of the standard electric energy meter and the pulse number of the to-be-detected alternating-current charging pile to obtain an error value, verifying the to-be-detected alternating-current charging pile according to the error value and obtaining a verification result.
Optionally, the apparatus further includes a calibration module, where the calibration module includes:
the satellite time service unit is used for acquiring the satellite time service time of the alternating-current charging pile to be tested;
the temperature and humidity measuring unit is used for acquiring the temperature and humidity value of the alternating-current charging pile to be measured;
the main control CPU receives the IPAD instruction, reads an error value and an electric energy value determined by the sampling CPU, the satellite time service time of the alternating current charging pile and the temperature and humidity value of the alternating current charging pile, generates calibration data in a standard format by using the error value and the electric energy value determined by the sampling CPU, the satellite time service time of the alternating current charging pile and the temperature and humidity value of the alternating current charging pile, and transmits the calibration data to the IPAD unit;
the programmable load unit is used for loading the alternating current charging pile load to be tested;
and the IPAD unit outputs an IPAD command to be transmitted to the main control CPU, and calibrates the verification result according to the calibration data.
Optionally, the device further includes an isolation unit, where the isolation unit is configured to isolate interference signals other than the voltage/current signals when the sampling module collects the voltage/current signals.
Optionally, the sampling module includes: a three-phase voltage signal sampling circuit and a three-phase current signal sampling circuit;
the three-phase voltage signal sampling circuit comprises a three-phase voltage interface and three voltage signal sampling circuits, wherein each phase voltage interface is connected with one voltage signal sampling circuit;
the three-phase current signal sampling circuit comprises a three-phase current interface and three current signal sampling circuits, wherein each phase current interface is connected with one current signal sampling circuit.
Optionally, the device further comprises a cloud platform, and the cloud platform is used for storing the verification result and the calibration result and managing the device.
Optionally, the verification module comprises:
the standard meter pulse output circuit acquires the standard meter pulse number output by the sampling CPU and transmits the standard meter pulse number to the error meter;
the device comprises a detected meter pulse input circuit, a voltage detection circuit and an error meter, wherein the detected meter acquires the output pulse number of the detected meter of the alternating current charging pile to be detected and transmits the output pulse number to the error meter;
and the error meter compares the pulse number of the standard meter with the pulse number of the standard meter to obtain an error value.
Optionally, the device is an integrated device.
Optionally, the device housing is an aluminum abrasive tool case.
Optionally, the device communication adopts RS485 to wifi and RJ45 to communicate.
The invention also provides a remote verification method for the alternating-current charging pile, which comprises the following steps:
the control sampling module is connected with an alternating current charging pile to be detected, the alternating current charging pile to be detected is in a charging state of a charging automobile, a voltage/current signal in the charging process of the alternating current charging pile to be detected is collected, and the voltage/current signal is transmitted to the sampling CPU;
performing electric energy integration on the voltage/current signal to obtain an electric energy value, and outputting standard electric energy meter pulses according to the electric energy value and preset turns;
the method comprises the steps of collecting the pulse number of a standard electric energy meter and the pulse number of a to-be-detected alternating-current charging pile, comparing the pulse number of the standard electric energy meter and the pulse number of the to-be-detected alternating-current charging pile to obtain an error value, detecting the to-be-detected alternating-current charging pile according to the error value and obtaining a detection result.
The device adopts an integrated design, has light weight, occupies small area, is light in weight, is more portable and has higher precision compared with the prior art.
Drawings
Fig. 1 is a structural diagram of a remote verification device for an ac charging pile according to the present invention;
fig. 2 is a flowchart of a remote verification method for an ac charging pile according to the present invention.
Detailed Description
The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for complete and complete disclosure of the present invention and to fully convey the scope of the present invention to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, the same units/elements are denoted by the same reference numerals.
Unless otherwise defined, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Further, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
The invention provides a remote calibration device for an alternating-current charging pile, which comprises the following components as shown in figure 1:
the sampling module is connected with the alternating current charging pile to be tested, the alternating current charging pile to be tested is in a charging state of a charging automobile, voltage/current signals in the charging process of the alternating current charging pile to be tested are collected, and the voltage/current signals are transmitted to the sampling CPU;
the sampling CPU receives the voltage/current signals collected by the sampling module, performs electric energy integration on the voltage/current signals to obtain an electric energy value, and outputs standard electric energy meter pulses according to the electric energy value and preset turns;
the verification module is used for acquiring the pulse number of the standard electric energy meter and the pulse number of the to-be-detected alternating-current charging pile, comparing the pulse number of the standard electric energy meter and the pulse number of the to-be-detected alternating-current charging pile to obtain an error value, verifying the to-be-detected alternating-current charging pile according to the error value and obtaining a verification result.
And the isolation unit is used for isolating interference signals except the voltage/current signals when the sampling module collects the voltage/current signals.
And the cloud platform is used for storing the verification result and the calibration result and managing the device.
A calibration module, the calibration module comprising:
the satellite time service unit is used for acquiring the satellite time service time of the alternating-current charging pile to be tested;
the temperature and humidity measuring unit is used for acquiring the temperature and humidity value of the alternating-current charging pile to be measured;
the main control CPU receives the IPAD instruction, reads an error value and an electric energy value determined by the sampling CPU, the satellite time service time of the alternating current charging pile and the temperature and humidity value of the alternating current charging pile, generates calibration data in a standard format by using the error value and the electric energy value determined by the sampling CPU, the satellite time service time of the alternating current charging pile and the temperature and humidity value of the alternating current charging pile, and transmits the calibration data to the IPAD unit;
and the IPAD unit outputs an IPAD command to be transmitted to the main control CPU, and calibrates the verification result according to the calibration data.
A sampling module, comprising: a three-phase voltage signal sampling circuit and a three-phase current signal sampling circuit;
the three-phase voltage signal sampling circuit comprises a three-phase voltage interface and three voltage signal sampling circuits, wherein each phase voltage interface is connected with one voltage signal sampling circuit;
the three-phase current signal sampling circuit comprises a three-phase current interface and three current signal sampling circuits, wherein each phase current interface is connected with one current signal sampling circuit.
A certification module comprising:
the standard meter pulse output circuit acquires the standard meter pulse number output by the sampling CPU and transmits the standard meter pulse number to the error meter;
the device comprises a detected meter pulse input circuit, a voltage detection circuit and an error meter, wherein the detected meter acquires the output pulse number of the detected meter of the alternating current charging pile to be detected and transmits the output pulse number to the error meter;
and the error meter compares the pulse number of the standard meter with the pulse number of the standard meter to obtain an error value.
The device is an integrated device.
The device shell is an aluminum grinding tool case.
The communication of the device is carried out by converting RS485 into wifi and RJ 45.
The design of the invention adopts 3D modeling, the mechanism is compact, and the appearance is beautiful.
The case adopts aluminium system case, and light in weight, the connecting piece adopts copper bar machine tooling, and firm antidetonation is moved.
The circuit board is sprayed with three-proofing paint, so that the insulating property is good.
Voltage acquisition range: precision of 0-300V: 0.05%, current collection range: 0-70A, precision 0.05%, and electric energy collection precision: 0.05 percent, the highest frequency of output electric energy pulse is 66kHz, the frequency of input electric energy pulse is less than or equal to 500Hz, the level is 0-5V, and the clock accuracy is as follows: 2 x 10-7, can set parameters such as constant, number of turns, zero clearing, starting and the like
The invention also provides a remote verification method for the alternating-current charging pile, which comprises the following steps as shown in fig. 2:
the control sampling module is connected with an alternating current charging pile to be detected, the alternating current charging pile to be detected is in a charging state of a charging automobile, a voltage/current signal in the charging process of the alternating current charging pile to be detected is collected, and the voltage/current signal is transmitted to the sampling CPU;
performing electric energy integration on the voltage/current signal to obtain an electric energy value, and outputting standard electric energy meter pulses according to the electric energy value and preset turns;
the method comprises the steps of collecting the pulse number of a standard electric energy meter and the pulse number of a to-be-detected alternating-current charging pile, comparing the pulse number of the standard electric energy meter and the pulse number of the to-be-detected alternating-current charging pile to obtain an error value, detecting the to-be-detected alternating-current charging pile according to the error value and obtaining a detection result.
The device adopts an integrated design, has light weight, occupies small area, is light in weight, is more portable and has higher precision compared with the prior art.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein. The scheme in the embodiment of the application can be implemented by adopting various computer languages, such as object-oriented programming language Java and transliterated scripting language JavaScript.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. A remote verification device for an ac charging post, the device comprising:
the sampling module is connected with the alternating current charging pile to be tested, the alternating current charging pile to be tested is in a charging state of a charging automobile, voltage/current signals in the charging process of the alternating current charging pile to be tested are collected, and the voltage/current signals are transmitted to the sampling CPU;
the sampling CPU receives the voltage/current signals collected by the sampling module, performs electric energy integration on the voltage/current signals to obtain an electric energy value, and outputs standard electric energy meter pulses according to the electric energy value and preset turns;
the verification module is used for acquiring the pulse number of the standard electric energy meter and the pulse number of the to-be-detected alternating-current charging pile, comparing the pulse number of the standard electric energy meter and the pulse number of the to-be-detected alternating-current charging pile to obtain an error value, verifying the to-be-detected alternating-current charging pile according to the error value and obtaining a verification result.
2. The apparatus of claim 1, further comprising, a calibration module, the calibration module comprising:
the satellite time service unit is used for acquiring the satellite time service time of the alternating-current charging pile to be tested;
the temperature and humidity measuring unit is used for acquiring the temperature and humidity value of the alternating-current charging pile to be measured;
the main control CPU receives the IPAD instruction, reads an error value and an electric energy value determined by the sampling CPU, the satellite time service time of the alternating current charging pile and the temperature and humidity value of the alternating current charging pile, generates calibration data in a standard format by using the error value and the electric energy value determined by the sampling CPU, the satellite time service time of the alternating current charging pile and the temperature and humidity value of the alternating current charging pile, and transmits the calibration data to the IPAD unit;
and the IPAD unit outputs an IPAD command to be transmitted to the main control CPU, and calibrates the verification result according to the calibration data.
3. The device of claim 1, further comprising an isolation unit, wherein the isolation unit is configured to isolate interference signals other than the voltage/current signals when the sampling module collects the voltage/current signals.
4. The apparatus of claim 1, the sampling module, comprising: a three-phase voltage signal sampling circuit and a three-phase current signal sampling circuit;
the three-phase voltage signal sampling circuit comprises a three-phase voltage interface and three voltage signal sampling circuits, wherein each phase voltage interface is connected with one voltage signal sampling circuit;
the three-phase current signal sampling circuit comprises a three-phase current interface and three current signal sampling circuits, wherein each phase current interface is connected with one current signal sampling circuit.
5. The apparatus of claim 1, further comprising a cloud platform for storing verification and calibration results and managing the apparatus.
6. The apparatus of claim 1, the assay module, comprising:
the standard meter pulse output circuit acquires the standard meter pulse number output by the sampling CPU and transmits the standard meter pulse number to the error meter;
the device comprises a detected meter pulse input circuit, a voltage detection circuit and an error meter, wherein the detected meter acquires the output pulse number of the detected meter of the alternating current charging pile to be detected and transmits the output pulse number to the error meter;
and the error meter compares the pulse number of the standard meter with the pulse number of the standard meter to obtain an error value.
7. The device of claim 1, which is an integrated device.
8. The device of claim 1, wherein the device housing is an aluminum abrasive housing.
9. The device of claim 1, wherein the device communication is performed by RS485 to wifi and RJ 45.
10. A remote certification method for an ac charging post, the method comprising:
the control sampling module is connected with an alternating current charging pile to be detected, the alternating current charging pile to be detected is in a charging state of a charging automobile, a voltage/current signal in the charging process of the alternating current charging pile to be detected is collected, and the voltage/current signal is transmitted to the sampling CPU;
performing electric energy integration on the voltage/current signal to obtain an electric energy value, and outputting standard electric energy meter pulses according to the electric energy value and preset turns;
the method comprises the steps of collecting the pulse number of a standard electric energy meter and the pulse number of a to-be-detected alternating-current charging pile, comparing the pulse number of the standard electric energy meter and the pulse number of the to-be-detected alternating-current charging pile to obtain an error value, detecting the to-be-detected alternating-current charging pile according to the error value and obtaining a detection result.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010867386.1A CN112162232A (en) | 2020-08-25 | 2020-08-25 | Remote verification device and method for alternating-current charging pile |
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| CN202010867386.1A CN112162232A (en) | 2020-08-25 | 2020-08-25 | Remote verification device and method for alternating-current charging pile |
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| CN114325086A (en) * | 2021-12-31 | 2022-04-12 | 北京博电新力电气股份有限公司 | Charging electric energy metering method, device, equipment, medium and computer program product |
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Application publication date: 20210101 |