CN211577410U - System for checking electric energy error of direct current charger - Google Patents
System for checking electric energy error of direct current charger Download PDFInfo
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Abstract
The utility model discloses a system for be used for carrying out the check-up to direct current charger's electric energy error, include: the calibration instrument is embedded in the charging gun and used for calculating the electric energy error of the direct-current charger according to the acquired electric energy pulse signal for charging the electric load and the measured electric energy pulse signal measured by a built-in electric energy meter of the direct-current charger and directly sending the electric energy error to the server when the current state of the wireless communication signal is stable; when the current state of the wireless communication signal is unstable, the electric energy error is sent to the mobile communication terminal; and the mobile communication terminal is used for receiving the electric energy error and sending the electric energy error to the server. The utility model overcomes charge machine inconvenient problem of information transmission under adverse circumstances, for different outdoor environment such as direct current charger installation site provide more possibilities, more can adapt to the needs of market development, use this technical scheme simultaneously and compare with traditional online check-up scheme and change remote monitoring.
Description
Technical Field
The utility model relates to a direct current charger on-the-spot check-up technical field to more specifically, relate to a system that is used for carrying out the check-up to direct current charger's electric energy error.
Background
With the development of times, electric automobiles are more and more widely used. Correspondingly, the charging station is rapidly constructed, and the installation of the charger is increased continuously. However, for the new product brought by the development of new energy, the field electric energy, charging and function tests of the charger are still incomplete.
The professional equipment that the scene was tested the machine that charges is the on-spot check gauge of machine that charges, and the on-spot check gauge of machine that charges is because need match with the machine that charges and the load case of waiting to examine, and the result in comparatively common on the market machine that charges on-the-spot check gauge all is the volume comparatively huge, and the structure is mostly the box, and the transport is inconvenient, and the rate of utilization is not high, and the site environment is complicated, damages easily, is unfavorable for the scene to detect and maintain the machine that charges.
Disclosure of Invention
The utility model provides a system for be used for carrying out the check-up to direct current charger's electric energy error to solve how high-efficiently to carry out the problem of check-up to direct current charger.
In order to solve the above problem, according to the utility model discloses an aspect provides a system for being used for carrying out the check-up to direct current charger's electric energy error, the system includes:
the calibration instrument is embedded in the charging gun and used for calculating the electric energy error of the direct-current charger according to the acquired electric energy pulse signal for charging the electric load and the measured electric energy pulse signal measured by a built-in electric energy meter of the direct-current charger, and directly sending the electric energy error to the server through the wireless module when the current wireless communication signal is stable; when the current state of the wireless communication signal is unstable, the electric energy error is sent to the mobile communication terminal through the Bluetooth module;
a server for receiving the power error;
and the mobile communication terminal is used for receiving the electric energy error and sending the electric energy error to the server through the wireless module.
Preferably, the calibrator comprises:
the electric energy metering module is connected with the electric energy pulse comparison module and is used for acquiring a standard electric energy pulse signal for charging the electric load;
the wireless pulse receiving module is connected with the electric energy pulse comparing module and is used for acquiring a measured electric energy pulse signal measured by a built-in electric energy meter of the direct current charger;
the electric energy pulse comparison module is connected with the main control module and used for calculating the electric energy error of the direct current charger according to the standard electric energy pulse signal and the measured electric energy pulse signal;
the main control module is used for directly sending the electric energy error to the server through the wireless module when the current state of the wireless communication signal is stable; and the power error is sent to the mobile communication terminal through the Bluetooth module when the current state of the wireless communication signal is unstable.
Preferably, the calibrator further comprises:
and the power supply module is connected with the main control module and used for providing electric energy support for the main control module when the calibrator is not supported by an external power supply, so that the main control module can send an electric energy error to the server.
Preferably, the calibrator further comprises:
the CAN communication module is connected to a CAN communication bus in a charging circuit between the direct current charger and the electric load, is connected with the main control module, and is used for sending the detected total electricity consumption and the detected total cost counted by the monitored direct current charger used by the electric load to the main control module;
the main control module is used for comparing the standard total power consumption sent by the electric energy metering module with the detected total power consumption to obtain an error value of the total power consumption; and calculating standard total cost according to the standard total power consumption, and comparing the detected total cost with the standard total cost to obtain an error value of the total cost.
Preferably, wherein the system further comprises:
the voltage sampling module and the current sampling module are respectively connected with the electric energy metering module, and are used for respectively acquiring an instantaneous direct current signal and an instantaneous direct current voltage signal on a charging circuit of an electric load supplied by a charger and transmitting the signals to the electric energy metering module;
the electric energy metering module is used for converting the received instantaneous direct current signal and instantaneous direct current voltage signal into a digital signal form, and performing operation to obtain a standard electric energy pulse signal and send the standard electric energy pulse signal to the electric energy pulse comparison module; and the device is used for calculating a standard instantaneous direct current value, a standard instantaneous direct current voltage value and an instantaneous power value according to the instantaneous direct current signal and the instantaneous direct current voltage signal.
Preferably, wherein the server is further configured to:
sending a detection task to a calibrator, wherein the detection task comprises: the method comprises the following steps of measuring point name, measuring point address, asset number, pulse constant and number of turns of an electric energy meter of a detected charger, uploading interval of real-time measuring data, rate setting, time period setting and changing time and date.
Preferably, the communication mode of the wireless module includes: bluetooth communication, WiFi communication, 4G communication, and/or 5G communication.
Preferably, the mobile communication terminal is a mobile phone, a notebook, a POS machine, a PAD, a vehicle-mounted computer or a bluetooth gateway.
The utility model provides a system for be used for carrying out the check-up to direct current charger's electric energy error, include: the calibration instrument is embedded in the charging gun and used for calculating the electric energy error of the direct-current charger according to the acquired electric energy pulse signal for charging the electric load and the measured electric energy pulse signal measured by a built-in electric energy meter of the direct-current charger, and directly sending the electric energy error to the server through the wireless module when the current wireless communication signal is stable; when the current state of the wireless communication signal is unstable, the electric energy error is sent to the mobile communication terminal through the Bluetooth module; and the mobile communication terminal is used for receiving the electric energy error and sending the electric energy error to the server through the wireless module. The utility model designs two schemes for transmitting data according to the field environment, overcomes the problem that the charger is inconvenient in information transmission under severe environment, provides more possibilities for different outdoor environments such as the installation field of the direct current charger and the like, can adapt to the needs of market development, and is easier to remotely monitor compared with the traditional on-line checking scheme by using the technical scheme; compared with the universal gun head of the traditional charger, the charging gun of the utility model has no special requirements, and the difference is only that the calibration instrument is different, so that the batch manufacturing cost of the scheme is lower; the utility model provides a field check gauge structure mostly be the box, bulky, transport inconvenient, the not high, the difficult problem of maintenance of rate of utilization.
Drawings
A more complete understanding of exemplary embodiments of the present invention may be had by reference to the following drawings:
fig. 1 is a schematic structural diagram of a system 100 for checking an electric energy error of a dc charger according to an embodiment of the present invention;
fig. 2 is a system block diagram for checking an electric energy error of the dc charger according to an embodiment of the present invention; and
fig. 3 is a schematic structural diagram of a calibrator according to an embodiment of the present invention.
Detailed Description
The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, which, however, may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of thoroughly and completely disclosing the present invention and fully conveying the scope of the present invention to those skilled in the art. The terminology used in the exemplary embodiments presented 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.
Fig. 1 is a schematic structural diagram of a system 100 for checking an electric energy error of a dc charger according to an embodiment of the present invention. As shown in fig. 1, the utility model discloses a system for carrying out calibration to dc charger's electric energy error that embodiment provided can design two kinds of transmission data's schemes according to site environment, has overcome the inconvenient problem of the machine information transmission under adverse circumstances of charging, provides more possibilities for different outdoor environment such as dc charger installation scene, more can adapt to the needs of market development, uses this technical scheme to compare with traditional online calibration scheme simultaneously and changes remote monitoring; compared with the universal gun head of the traditional charger, the charging gun of the utility model has no special requirements, and the difference is only that the calibration instrument is different, so that the batch manufacturing cost of the scheme is lower; the utility model provides a field check gauge structure mostly be the box, bulky, transport inconvenient, the not high, the difficult problem of maintenance of rate of utilization. The utility model discloses an embodiment provides a system 100 that is used for carrying out the check-up to direct current charger's electric energy error, include: a verifier 101, a mobile communication terminal 102, and a server 103.
Preferably, the calibrator 101 is embedded in the charging gun, and is configured to calculate an electric energy error of the dc charger according to the obtained electric energy pulse signal for charging the electric load and the measured electric energy pulse signal measured by a built-in electric energy meter of the dc charger, and directly send the electric energy error to the server through the wireless module when the current state of the wireless communication signal is stable; and when the current state of the wireless communication signal is unstable, the electric energy error is sent to the mobile communication terminal through the Bluetooth module.
Preferably, the server 103 is configured to receive the power error.
Preferably, the mobile communication terminal 102 is configured to receive the power error and send the power error to the server through the bluetooth module.
Preferably, wherein the system further comprises: and the wireless pulse transmitting unit is used for acquiring the measured electric energy pulse information measured by a built-in electric energy meter of the direct-current charger and sending the measured electric energy pulse information to the calibrator.
Fig. 2 is a system block diagram for checking the electric energy error of the direct current charger according to the embodiment of the present invention. As shown in fig. 2, in the embodiment of the present invention, the system for checking the electric energy error of the dc charger includes: the device comprises a direct current charger, a charging gun, a wireless pulse transmitting unit, a server and a mobile communication terminal.
The direct current charger is connected with the electric load through the charging gun, and one end of the charging gun connected with the direct current charger and one end of the charging gun connected with the electric load both accord with the relevant regulations of the national standard GB/T20234.3-2015 electric vehicle conduction charging connecting device part 3 direct current charging interface. The rifle that charges includes: the rifle plug and the rifle socket that charges, the rifle plug connection direct current that charges charge machine, the rifle socket connection power consumption load that charges, the check gauge is embedded to the rifle socket that charges in, the rate of utilization is high, small, light in weight, has replaced traditional direct current to fill electric pile verifying attachment bulky, and the scheme of independent design has promoted the portability and the ease for use of equipment by a wide margin.
The direct current charger is internally provided with a direct current electric energy meter, the wireless pulse transmitting unit captures a detected electric energy pulse signal of the charger in a photoelectric sampling or direct wiring mode, and the collected detected electric energy pulse signal is transmitted to the wireless pulse receiving module of the calibrator in a wireless communication mode.
The utility model discloses an in the embodiment, the standard electric energy pulse signal that the check gauge gathered for the electric load charges, compare with the measured electric energy pulse signal that does not have the receipt, calculate the electric energy error, the electric energy error of calculation is according to the different branch circumstances of the environment that the machine of charging is located and transmit, when the state of the current wireless communication signal of check gauge is stable, transmit the electric energy error of calculation to the server through wireless module to accomplish the on-the-spot check-up of machine of charging; when the current wireless communication signal state of the calibrator is unstable, the Bluetooth module is started, the calculated electric energy error is transmitted to the mobile communication terminal through the Bluetooth module, the stable signal is obtained by changing the position of the mobile communication terminal, and therefore the electric energy error is transmitted to the server through the wireless module.
Preferably, the calibrator 101 includes: the device comprises an electric energy metering module, a wireless pulse receiving module, an electric energy pulse comparing module and a main control module.
Preferably, the electric energy metering module is connected with the electric energy pulse comparing module and is used for acquiring a standard electric energy pulse signal for charging the electric load.
Preferably, the wireless pulse receiving module is connected with the electric energy pulse comparing module and is used for acquiring a measured electric energy pulse signal measured by a built-in electric energy meter of the direct current charger.
Preferably, the electric energy pulse comparison module is connected to the main control module and is configured to calculate an electric energy error of the dc charger according to the standard electric energy pulse signal and the measured electric energy pulse signal.
Preferably, the main control module is configured to directly send the power error to the server through the wireless module when the current state of the wireless communication signal is stable; and the power error is sent to the mobile communication terminal through the Bluetooth module when the current state of the wireless communication signal is unstable.
Preferably, the calibrator further comprises:
and the power supply module is connected with the main control module and used for providing electric energy support for the main control module when the calibrator is not supported by an external power supply, so that the main control module can send an electric energy error to the server.
Preferably, the calibrator further comprises:
the CAN communication module is connected to a CAN communication bus in a charging circuit between the direct current charger and the electric load, is connected with the main control module, and is used for sending the detected total electricity consumption and the detected total cost counted by the monitored direct current charger used by the electric load to the main control module;
the main control module is used for comparing the standard total power consumption sent by the electric energy metering module with the detected total power consumption to obtain an error value of the total power consumption; and calculating standard total cost according to the standard total power consumption, and comparing the detected total cost with the standard total cost to obtain an error value of the total cost.
Preferably, wherein the system further comprises:
the voltage sampling module and the current sampling module are respectively connected with the electric energy metering module, and are used for respectively acquiring an instantaneous direct current signal and an instantaneous direct current voltage signal on a charging circuit of an electric load supplied by a charger and transmitting the signals to the electric energy metering module;
the electric energy metering module is used for converting the received instantaneous direct current signal and instantaneous direct current voltage signal into a digital signal form, and performing operation to obtain a standard electric energy pulse signal and send the standard electric energy pulse signal to the electric energy pulse comparison module; and the device is used for calculating a standard instantaneous direct current value, a standard instantaneous direct current voltage value and an instantaneous power value according to the instantaneous direct current signal and the instantaneous direct current voltage signal.
Preferably, wherein the server is further configured to:
sending a detection task to a calibrator, wherein the detection task comprises: the method comprises the following steps of measuring point name, measuring point address, asset number, pulse constant and number of turns of an electric energy meter of a detected charger, uploading interval of real-time measuring data, rate setting, time period setting and changing time and date.
Preferably, the communication mode of the wireless module includes: bluetooth communication, WiFi communication, 4G communication, and/or 5G communication.
Preferably, the mobile communication terminal is a mobile phone, a notebook, a POS machine, a PAD, a vehicle-mounted computer or a bluetooth gateway.
Fig. 3 is a schematic structural diagram of a calibrator according to an embodiment of the present invention. As shown in fig. 3, in an embodiment of the present invention, the calibration apparatus includes: the device comprises an electric energy metering module, a wireless pulse receiving module, an electric energy pulse comparing module, an MCU (microprogrammed control unit) main control module, a CAN (controller area network) communication module, a voltage sampling module, a current sampling module, a Bluetooth module, a wireless module and a power supply module.
The electric energy metering module adopts ADE7753, and obtains a standard electric energy pulse signal according to the voltage sampling module and the current sampling module. The voltage sampling module selects a resistance voltage division network with 0.02% precision and 5ppm temperature coefficient to perform signal conditioning, the current sampling module adopts a zero magnetic flux current sensor of a broadband alternating current-direct current comparator technology, the rear end adopts a resistance with 0.02% precision and 5ppm temperature coefficient to perform sampling, and a current signal is converted into a voltage signal.
And the wireless pulse receiving module is connected with the electric energy pulse comparison module and used for acquiring a measured electric energy pulse signal measured by a built-in electric energy meter of the direct current charger according to the wireless pulse sending unit.
And the electric energy pulse comparison module is connected with the main control module and is used for calculating the electric energy error of the direct current charger according to the standard electric energy pulse signal and the measured electric energy pulse signal.
The MCU master control module adopts an ADSP-21483 chip, has strong calculation capability and can ensure that the accuracy of real-time measured electric energy parameters reaches 0.05 level, thereby increasing the measurement accuracy of electric energy error check.
CAN communication module adopts TCAN334GDR, is connected to the CAN communication bus in the charging circuit between machine and the power consumption load that charges on, CAN communication module CAN with the charger end statistics that the power consumption load that hears used to be surveyed total power consumption and to be sent to MCU host system by total expense, MCU host system compares the standard total power consumption that electric energy metering module sent with to be surveyed total power consumption and obtain total power consumption's error value, and MCU host system calculates through standard total power consumption and reachs standard total expense, MCU host system will be surveyed total expense and standard total expense and compare the error value that reachs the total expense.
The power supply module is used for providing electric energy for the calibrator, electricity is needed to be obtained from the detected charging equipment when the charging equipment is detected on site, after the charging equipment is powered off, the power supply module starts the built-in rechargeable battery, a certain time interval is set to wake up the MCU main control module to detect signals, the wireless module is controlled to be connected with the server, and all detection data are sent out.
The check meter is communicated with the server through the wireless module, and the communication content comprises parameter setting and measurement data returning. Before the check gauge measures a new charging pile, a detection task of the server is received through the wireless module, and the detection task comprises a measuring point name, a measuring point address, an asset number, a pulse constant and a number of turns of a to-be-detected charging pile electric energy meter, a real-time measuring data uploading interval, rate setting, time period setting and a date and time for changing the setting. After the check meter receives a new detection task, the electric vehicle is charged, the detection task is automatically executed, and if the abnormality such as incomplete detection within a specified time, obvious abnormal reminding (more out-of-tolerance) of detection data and the like occurs in the process, the abnormality is reminded to the server through the wireless module. If no abnormal condition occurs, the information is reported to the server in time after the detection is started, in the detection process and after the detection is finished. The check gauge executes single verification design, and the check can be stopped after the check is finished.
Specifically, the working principle is as follows: a direct current sampling module and a direct current voltage sampling module in the calibrator respectively collect instantaneous direct current signals and instantaneous direct current voltage signals on a charging circuit of an electric load supplied by a charger, the instantaneous direct current signals and the instantaneous direct current voltage signals are both transmitted to an electric energy metering module, and the instantaneous direct current signals and the instantaneous direct current voltage signals are both analog signals; the electric energy metering module processes the received instantaneous direct current signal and the instantaneous direct voltage signal into a digital signal form, then calculates to obtain a standard instantaneous direct current electric energy pulse signal and sends the standard instantaneous direct current electric energy pulse signal to the electric energy pulse comparison module, the electric energy metering module can calculate a standard instantaneous direct current value, a standard instantaneous direct current voltage value and an instantaneous power value through the instantaneous direct current signal and the instantaneous direct current voltage signal, and the electric energy metering module can send the standard instantaneous direct current value, the standard instantaneous direct current voltage value and the accumulated standard total power consumption consumed in the whole charging process to the MCU main control module; the wireless pulse sending module is connected with a direct current electric energy meter of a direct current charger, an electric energy pulse signal (digital signal) of the direct current electric energy meter of the charger is transmitted to the wireless pulse receiving module through the wireless pulse sending module, after the processing of filtering, shaping and electrical isolation is carried out, the wireless pulse receiving module transmits an output detected instantaneous direct current electric energy pulse signal (digital signal) to the electric energy pulse comparing module, the electric energy pulse comparing module compares and calculates a standard instantaneous direct current electric energy pulse signal and the detected instantaneous direct current electric energy pulse signal of the direct current electric energy meter of the direct current charger, an instantaneous electric energy error value in a percentage form is obtained, and the electric energy pulse comparing module sends the error value to the MCU main control module; CAN communication module is connected to the CAN communication bus in the charging circuit between machine and the power consumption load that charges, and CAN communication module CAN be with the charger end statistics that the power consumption load that hears uses by the prison to be detected total power consumption and to be detected total cost and send to MCU host system, MCU host system compares the error value that reachs total power consumption with the standard total power consumption that is sent electric energy metering module, and MCU host system calculates through standard total power consumption and reachs standard total cost, MCU host system will be detected total cost and standard total cost and compare the error value that reachs the total cost.
The utility model discloses embodiment can accurately confirm the electric energy error of direct current machine that charges to transmission data's scheme under two kinds of sight is provided, has overcome the inconvenient problem of machine that charges information transmission under adverse circumstances, fills different outdoor environment such as electric pile installation site and provides more possibilities for the direct current, more can adapt to the needs of market development, uses this technical scheme to compare with traditional online check-up scheme simultaneously and changes remote monitoring.
The invention has been described with reference to a few embodiments. However, other embodiments of the invention than the above disclosed are equally possible within the scope of the invention, as would be apparent to a person skilled in the art, as defined by the appended patent claims.
Generally, all terms used in the claims are to be interpreted according to their ordinary meaning in the technical field, unless explicitly defined otherwise herein. All references to "a/an/the [ device, component, etc ]" are to be interpreted openly as referring to at least one instance of said device, component, etc., unless explicitly stated otherwise. The steps of any method disclosed herein do not have to be performed in the exact order disclosed, unless explicitly stated.
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 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.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents of the embodiments of the invention may be made without departing from the spirit and scope of the invention, which should be construed as falling within the scope of the claims of the invention.
Claims (8)
1. A system for checking the power error of a dc charger, characterized in that it comprises:
the calibration instrument is embedded in the charging gun and used for calculating the electric energy error of the direct-current charger according to the acquired electric energy pulse signal for charging the electric load and the measured electric energy pulse signal measured by a built-in electric energy meter of the direct-current charger and directly sending the electric energy error to the server through the wireless module when the current state of the wireless communication signal is stable; when the current state of the wireless communication signal is unstable, the electric energy error is sent to the mobile communication terminal through the Bluetooth module;
a server for receiving the power error;
and the mobile communication terminal is used for receiving the electric energy error and sending the electric energy error to the server through the wireless module.
2. The system of claim 1, wherein the prover comprises:
the electric energy metering module is connected with the electric energy pulse comparison module and is used for acquiring a standard electric energy pulse signal for charging the electric load;
the wireless pulse receiving module is connected with the electric energy pulse comparing module and is used for acquiring a measured electric energy pulse signal measured by a built-in electric energy meter of the direct current charger;
the electric energy pulse comparison module is connected with the main control module and used for calculating the electric energy error of the direct current charger according to the standard electric energy pulse signal and the measured electric energy pulse signal;
the main control module is used for directly sending the electric energy error to the server through the wireless module when the current state of the wireless communication signal is stable; and the power error is sent to the mobile communication terminal through the Bluetooth module when the current state of the wireless communication signal is unstable.
3. The system of claim 2, wherein the prover further comprises:
and the power supply module is connected with the main control module and used for providing electric energy support for the main control module when the calibrator is not supported by an external power supply, so that the main control module can send an electric energy error to the server.
4. The system of claim 2, wherein the prover further comprises:
the CAN communication module is connected to a CAN communication bus in a charging circuit between the direct current charger and the electric load, is connected with the main control module, and is used for sending the detected total electricity consumption and the detected total cost counted by the monitored direct current charger used by the electric load to the main control module;
the main control module is used for comparing the standard total power consumption sent by the electric energy metering module with the detected total power consumption to obtain an error value of the total power consumption; and calculating standard total cost according to the standard total power consumption, and comparing the detected total cost with the standard total cost to obtain an error value of the total cost.
5. The system of claim 2, further comprising:
the voltage sampling module and the current sampling module are respectively connected with the electric energy metering module, and are used for respectively acquiring an instantaneous direct current signal and an instantaneous direct current voltage signal on a charging circuit of an electric load supplied by a charger and transmitting the signals to the electric energy metering module;
the electric energy metering module is used for converting the received instantaneous direct current signal and instantaneous direct current voltage signal into a digital signal form, and performing operation to obtain a standard electric energy pulse signal and send the standard electric energy pulse signal to the electric energy pulse comparison module; and the device is used for calculating a standard instantaneous direct current value, a standard instantaneous direct current voltage value and an instantaneous power value according to the instantaneous direct current signal and the instantaneous direct current voltage signal.
6. The system of claim 1, wherein the server is further configured to:
sending a detection task to a calibrator, wherein the detection task comprises: the method comprises the following steps of measuring point name, measuring point address, asset number, pulse constant and number of turns of an electric energy meter of a detected charger, uploading interval of real-time measuring data, rate setting, time period setting and changing time and date.
7. The system of claim 1, wherein the wireless module is configured to communicate in a manner comprising: bluetooth communication, WiFi communication, 4G communication, and/or 5G communication.
8. The system of claim 1, wherein the mobile communication terminal is a mobile phone, a notebook, a POS machine, a PAD, a car computer, or a bluetooth gateway.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112630492A (en) * | 2020-11-27 | 2021-04-09 | 中国电力科学研究院有限公司 | Electric energy metering device and method for electric automobile charging pile |
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2019
- 2019-10-18 CN CN201921756162.2U patent/CN211577410U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112630492A (en) * | 2020-11-27 | 2021-04-09 | 中国电力科学研究院有限公司 | Electric energy metering device and method for electric automobile charging pile |
| CN112630492B (en) * | 2020-11-27 | 2024-02-09 | 中国电力科学研究院有限公司 | Electric energy metering device and method for electric automobile charging pile |
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