Charging equipment electric quantity metering method and electronic equipment

Abstract

The invention relates to a charging equipment electric quantity metering method and electronic equipment. The method comprises the steps of obtaining a first electric quantity measurement value corresponding to charging equipment according to an electric energy meter corresponding to the charging equipment; acquiring a second electric quantity measurement value corresponding to the charging equipment according to an electric measurement metering module corresponding to the charging equipment; a third electric quantity measurement value corresponding to the charging equipment is obtained according to the working parameters reported by the charging equipment, and the charging equipment obtains the working parameters of the charging equipment through an internal working parameter monitoring circuit; obtaining the absolute difference between every two of the first electric quantity measurement value, the second electric quantity measurement value and the third electric quantity measurement value; and obtaining one of the first electric quantity measurement value, the second electric quantity measurement value and the third electric quantity measurement value as a metering result of the charging equipment according to the absolute difference values in pairs. According to the invention, accurate metering of the charging process of the charging equipment can be realized.

Description

Technical Field

[0001] The present invention relates to the field of charging technology, and more particularly to a method for measuring the power consumption of a charging device and an electronic device. Background Art

[0002] With the rapid adoption of new energy vehicles, corresponding charging stations are increasingly being used. Accurate metering of charging stations has become a key industry requirement. Currently, DC charging station electricity metering primarily utilizes DC energy meters or electrical measurement modules, combined with high-precision sensors and communication technologies. For example, DC energy meters, typically built into DC charging stations, directly measure the DC voltage, current, power, and accumulated energy during the charging process and upload the data to a billing platform, enabling DC energy metering. Alternatively, embedded electrical measurement modules can be used to integrate voltage / current acquisition, power calculation, and energy accumulation functions, ultimately enabling electrical measurement module metering.

[0003] When an abnormality occurs in the working process of the electric energy meter and the electric measurement module, such as an abnormality in the data collection process or the data transmission process, it will eventually lead to inaccurate electricity measurement. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a charging device power metering method and electronic equipment in response to some of the above technical defects in the prior art.

[0005] The technical solution adopted by the present invention to solve the technical problem is to construct a charging device power measurement method, the method comprising:

[0006] Obtaining a first power measurement value corresponding to the charging device according to an electric energy meter corresponding to the charging device;

[0007] Obtaining a second power measurement value corresponding to the charging device according to the power measurement module corresponding to the charging device;

[0008] Obtaining a third power measurement value corresponding to the charging device according to the operating parameters reported by the charging device, wherein the charging device obtains the operating parameters of the charging device through an internal operating parameter monitoring circuit;

[0009] Obtaining pairwise absolute differences between the first power measurement value, the second power measurement value, and the third power measurement value;

[0010] One of the first power measurement value, the second power measurement value, and the third power measurement value is obtained according to the pairwise absolute differences as a measurement result of the charging device.

[0011] Preferably, in an embodiment of the charging device electricity metering method described in the present invention, the method further includes: obtaining current parameters, voltage parameters and electricity parameters of the electric energy meter corresponding to the charging device, so as to confirm the working status of the electric energy meter based on the current parameters, voltage parameters and electricity parameters of the electric energy meter, and obtaining the first electricity measurement value when the working status of the electric energy meter is normal.

[0012] Preferably, in an embodiment of the charging device electricity metering method of the present invention, the confirming the working status of the electric energy meter according to the current parameter, voltage parameter and electricity parameter of the electric energy meter includes:

[0013] Obtaining current parameters and voltage parameters of the device to be charged according to the output interface corresponding to the charging device; and obtaining a first absolute current difference and a first absolute voltage difference between the current parameters and voltage parameters of the electric energy meter and the current parameters and voltage parameters of the device to be charged, and confirming that the working state of the electric energy meter is normal when the first absolute current difference and the first absolute voltage difference are respectively less than corresponding threshold values; or

[0014] A first power calculation value is obtained based on the current parameter and voltage parameter of the electric energy meter to obtain a first absolute difference between the first power calculation value and the power parameter of the electric energy meter, and when the first absolute difference is less than the corresponding threshold value, it is confirmed that the working status of the electric energy meter is normal.

[0015] Preferably, in an embodiment of the charging device power metering method according to the present invention, the method further includes:

[0016] Obtain current parameters, voltage parameters, and power parameters of the electric measurement and metering module corresponding to the charging device, confirm the working status of the electric measurement and metering module based on the current parameters, voltage parameters, and power parameters of the electric measurement and metering module, and obtain the second power measurement value when the working status of the electric measurement and metering module is normal.

[0017] Preferably, in an embodiment of the charging device electricity metering method of the present invention, the confirming the working status of the electricity metering module according to the current parameter, voltage parameter and electricity parameter of the electricity metering module includes:

[0018] Obtaining current parameters and voltage parameters of the device to be charged according to the output interface corresponding to the charging device; and obtaining a second absolute current difference and a second absolute voltage difference between the current parameters and voltage parameters of the power measurement module and the current parameters and voltage parameters of the device to be charged, and confirming that the working state of the power measurement module is normal when the second absolute current difference and the second absolute voltage difference are respectively less than corresponding threshold values; or

[0019] A second power calculation value is obtained based on the current parameter and voltage parameter of the power measurement and metering module to obtain a second absolute difference between the second power calculation value and the power parameter of the power measurement and metering module, and when the second absolute difference is less than the corresponding threshold value, it is confirmed that the working status of the power measurement and metering module is normal.

[0020] Preferably, in an embodiment of the charging device power metering method according to the present invention, the method further includes:

[0021] Obtain current parameters, voltage parameters, and power parameters corresponding to the charging device to confirm the working status of the charging device based on the current parameters, voltage parameters, and power parameters corresponding to the charging device, and obtain the third power measurement value when the working status of the charging device is normal.

[0022] Preferably, in an embodiment of the method for measuring power consumption of a charging device according to the present invention, confirming the working status of the charging device according to the current parameter, voltage parameter, and power parameter corresponding to the charging device includes:

[0023] Obtaining current parameters and voltage parameters of the device to be charged according to the output interface corresponding to the charging device; and obtaining a third current absolute difference and a third voltage absolute difference between the current parameters and voltage parameters of the charging device and the current parameters and voltage parameters of the device to be charged, and confirming that the working state of the charging device is normal when the third current absolute difference and the third voltage absolute difference are respectively less than corresponding threshold values; or

[0024] A third power calculation value is obtained based on the current parameter and voltage parameter of the charging device to obtain a third absolute difference between the third power calculation value and the power parameter of the charging device, and when the third absolute difference is less than the corresponding threshold value, it is confirmed that the working status of the charging device is normal.

[0025] Preferably, in an embodiment of the charging device power measurement method of the present invention, obtaining one of the first power measurement value, the second power measurement value, and the third power measurement value as a measurement result of the charging device according to the pairwise absolute differences includes:

[0026] When the pairwise absolute differences are both smaller than a preset value, the power consumption of the charging device is measured by the power meter corresponding to the charging device;

[0027] When there are two groups of pairwise absolute differences that are smaller than the preset value,

[0028] If the two groups of absolute differences are both correlated with the first power measurement value, the first power measurement value is used as the measurement result of the charging device;

[0029] If the two groups of pairwise absolute differences are both correlated with the second power measurement value, the second power measurement value is used as the measurement result of the charging device;

[0030] If the two groups of pairwise absolute differences are both correlated with the third power measurement value, the third power measurement value is used as the measurement result of the charging device.

[0031] Preferably, in an embodiment of the charging device power metering method according to the present invention, the method further includes:

[0032] When only one group of the pairwise absolute differences or both of the pairwise absolute differences are not less than the preset value, the charging operation of the charging device is terminated.

[0033] The present invention also constructs an electronic device, which includes a module for executing the method described above.

[0034] The method for measuring the power consumption of a charging device and the electronic device according to the present invention have the following beneficial effects: accurate measurement of the charging process of the charging device can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0036] Figure 1 This is a flowchart of an embodiment of a method for measuring the amount of electricity in a charging device according to the present invention;

[0037] Figure 2 This is a flowchart of another embodiment of a method for measuring the amount of electricity in a charging device according to the present invention;

[0038] Figure 3 This is a flowchart of another embodiment of a method for measuring the amount of electricity in a charging device according to the present invention;

[0039] Figure 4 This is a flowchart of another embodiment of a method for measuring the amount of electricity in a charging device according to the present invention;

[0040] Figure 5 This is a program flow chart of another embodiment of a charging device power measurement method of the present invention. DETAILED DESCRIPTION

[0041] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described in detail with reference to the accompanying drawings.

[0042] like Figure 1 FIG. 1 shows an embodiment of a method for measuring the amount of electricity in a charging device according to the present invention. Figure 1In an embodiment of a charging device power metering method of the present invention shown, the method includes the following steps: S1. Obtaining a first power measurement value corresponding to the charging device according to the electric energy meter corresponding to the charging device; S2. Obtaining a second power measurement value corresponding to the charging device according to the electric metering module corresponding to the charging device; S3. Obtaining a third power measurement value corresponding to the charging device according to the working parameters reported by the charging device, wherein the charging device obtains the working parameters of the charging device through an internal working parameter monitoring circuit; S4. Obtaining the pairwise absolute differences of the first power measurement value, the second power measurement value and the third power measurement value; S5. Obtaining one of the first power measurement value, the second power measurement value and the third power measurement value as the metering result of the charging device according to the pairwise absolute differences.

[0043] In step S1, during the charging process of the charging device, the power level of the device to be charged, such as the vehicle to be charged (hereinafter referred to as the vehicle), can be monitored by the power meter provided in the charging pile to obtain a corresponding first power measurement value. Among them, when the charging pile is provided with multiple charging interfaces, such as multiple charging guns, it can be understood that the charging pile includes multiple charging devices, and the charging guns correspond to the charging devices one by one. The power meter provided in the charging pile can be understood as performing power detection on each charging device separately for the output of each charging interface. In one embodiment, the upper device, such as the billing unit, can communicate with the power meter through, but not limited to, RS232 / 485 / CAN and other communication methods to obtain relevant data of the power meter. Among them, the process of the upper device acquiring the data of the power meter can be updated according to the preset interval time according to the preset communication data transmission rule setting. In one embodiment, the first power measurement value can be directly obtained through the power reporting data of the power meter.

[0044] In step S2, during the charging process of the charging device, the power measurement module provided in the charging pile can monitor the power of the charging device, such as a vehicle, to obtain a corresponding second power measurement value. Specifically, when the charging pile is provided with multiple charging interfaces, such as multiple charging guns, it can be understood that the charging pile includes multiple charging devices, and the charging guns correspond to the charging devices one-to-one. The output of each charging interface by the power measurement module provided in the charging pile can also be understood as performing power detection for each charging device separately. In one embodiment, the upper device, such as the billing unit, can communicate with the power measurement module through, but not limited to, UART / RS232 / 485 / CAN / SPI / IIC and other communication methods to obtain relevant data of the power measurement module. Specifically, the process of the upper device acquiring data from the power measurement module can be updated according to a preset interval time according to a preset communication data transmission rule setting. In one embodiment, the second power measurement value can be directly obtained through the power reporting data of the power measurement module.

[0045] In step S3, during the charging process of the charging device, the power monitoring of the device to be charged, such as a vehicle, can be directly achieved through the reported parameters of the charging device in the charging pile to obtain the corresponding third power measurement value. Specifically, when the charging pile is provided with multiple charging interfaces, such as multiple charging guns, it can be understood that the charging pile includes multiple charging devices, and the charging guns correspond to the charging devices one by one. Each charging device reports its working parameters separately to further obtain the power monitoring data corresponding to each charging device. That is, each charging device is provided with a corresponding working parameter monitoring circuit to monitor the working parameters of each charging device separately to obtain the working parameters of the charging device. Specifically, the working parameter monitoring circuit provided in the charging device can be understood as a sampling circuit provided in the charging device for monitoring the working parameters such as voltage, current, and power of the charging device during operation. The working parameter monitoring circuit also includes a communication circuit to realize the reporting of the sampling results of the sampling circuit as the working parameters of the charging device, so as to finally obtain the working parameters of the charging device. In one embodiment, a host device, such as a billing unit, may communicate with a communication circuit via, but not limited to, UART / RS232 / 485 / CAN / SPI / IIC, to obtain operating parameters corresponding to the charging device and calculate corresponding power detection data based on the operating parameters. The host device may update the operating parameters reported by the charging device at preset intervals according to preset communication data transmission rules. In one embodiment, the third power measurement value may be obtained directly from the power data reported by the charging device.

[0046] Based on the above steps, there is no required order between steps S1 to S3; that is, the execution order can be adjusted arbitrarily or performed simultaneously as needed. However, it should be noted that the time periods corresponding to the first, second, and third power measurement values ​​are the same time period, which means that the power consumption of the charging device during the same charging process is obtained. The difference in the execution order only means that the data processing process may have a time difference, but the data used for processing must be relevant data of the charging device within the same time period.

[0047] After obtaining the first, second, and third power measurement values ​​based on steps S4 and S5, the absolute difference between each pair of the three data values ​​can be calculated to obtain a pairwise absolute difference, ultimately obtaining three pairwise absolute differences. A determination is made based on the three pairwise absolute differences to select an appropriate one of the first, second, and third power measurement values ​​as the metering result of the charging device.

[0048] In one embodiment, if Figure 2As shown, the charging device electricity metering method of the present invention further includes: S11, obtaining current parameters, voltage parameters, and electricity parameters of the electric energy meter corresponding to the charging device, and confirming the operating status of the electric energy meter based on the current parameters, voltage parameters, and electricity parameters of the electric energy meter. When the operating status of the electric energy meter is normal, step S1 is executed. That is, before obtaining the first electricity measurement value corresponding to the electric energy meter, the operating status of the electric energy meter must be confirmed. Step S1 is performed to obtain the first electricity measurement value only when the operating status of the electric energy meter corresponding to the charging device is normal. In one embodiment, the current parameters, voltage parameters, and electricity parameters of the electric energy meter can be obtained, and the operating status of the electric energy meter can be determined based on the obtained parameters. In one embodiment, the process of confirming the operating status of the electric energy meter can also include determining whether the current parameters, voltage parameters, and electricity parameters of the electric energy meter can be obtained. If the above parameters of the electric energy meter cannot be obtained, it can be directly determined that the operating status of the electric energy meter is abnormal.

[0049] Optionally, in step S11, the operating status of the energy meter is confirmed based on the current parameters, voltage parameters, and power parameters of the energy meter, including: obtaining the current parameters and voltage parameters of the device to be charged based on the output interface corresponding to the charging device; and obtaining a first absolute current difference and a first absolute voltage difference between the current parameters and voltage parameters of the energy meter and the current parameters and voltage parameters of the device to be charged, and confirming that the operating status of the energy meter is normal when the first absolute current difference and the first absolute voltage difference are respectively less than corresponding threshold values. Specifically, while the charging device is charging the vehicle, the current charging parameters of the vehicle, such as the current parameter and voltage parameter, can be obtained through the vehicle's charging interface, and the operating status of the energy meter can be confirmed by comparing the vehicle's charging parameters with the parameters reported by the energy meter. That is, the current parameters and voltage parameters in the parameters reported by the electric energy meter and the current parameters and voltage parameters in the charging parameters reported by the vehicle can be obtained, the absolute difference between the two current parameters, that is, the first current absolute difference, and the absolute difference between the two voltage parameters, that is, the first voltage absolute difference, can be obtained. It is confirmed whether the first current absolute difference is less than the corresponding threshold value, such as e01, and at the same time, it is confirmed whether the first voltage absolute difference is less than the corresponding threshold value, such as e02. When both are less than the state, it can be determined that the working state of the electric energy meter corresponding to the charging device is normal.

[0050] Optionally, in step S11, the working state of the electric energy meter is confirmed based on the current parameter, voltage parameter, and power parameter of the electric energy meter, including: obtaining a first power calculation value based on the current parameter and voltage parameter of the electric energy meter to obtain a first absolute difference between the first power calculation value and the power parameter of the electric energy meter, and confirming that the working state of the electric energy meter is normal when the first absolute difference is less than a corresponding threshold value. Specifically, it is also possible to directly integrate the voltage and current data obtained by the electric energy meter to calculate the power, that is, to obtain the first power calculation value, further calculate the absolute difference between the first power calculation value and the power uploaded by the electric energy meter, that is, the first absolute difference, and determine whether the first absolute difference is less than a corresponding threshold value, such as e03. If it is less than, it means that the working state of the electric energy meter is normal. Otherwise, it is determined that the working state of the electric energy meter is abnormal, the metering result is inaccurate, and confirmation is required.

[0051] In one embodiment, if Figure 3 As shown, the charging device electricity metering method of the present invention further includes: S21, obtaining current parameters, voltage parameters, and electricity parameters of the electricity measurement and metering module corresponding to the charging device, confirming the operating status of the electricity measurement and metering module based on the current parameters, voltage parameters, and electricity parameters of the electricity measurement and metering module, and executing step S2 when the operating status of the electricity measurement and metering module is normal. That is, before obtaining the second electricity measurement value corresponding to the electricity measurement and metering module, the operating status of the electricity measurement and metering module must be confirmed. Only when the electricity measurement and metering module corresponding to the charging device is normal can step S2 be performed to obtain the second electricity measurement value. In one embodiment, the current parameters, voltage parameters, and electricity parameters of the electricity measurement and metering module can be obtained, and the operating status of the electricity measurement and metering module can be determined based on the obtained parameters. In one embodiment, the process of confirming the operating status of the electricity measurement and metering module can also include determining whether the current parameters, voltage parameters, and electricity parameters of the electricity measurement and metering module can be obtained. If the above parameters of the electricity measurement and metering module cannot be obtained, it can be directly determined that the operating status of the electricity measurement and metering module is abnormal.

[0052] Optionally, in step S21, the working state of the electric measurement and metering module is confirmed based on the current parameters, voltage parameters, and power parameters of the electric measurement and metering module, including: obtaining the current parameters and voltage parameters of the device to be charged based on the output interface corresponding to the charging device; and obtaining a second current absolute difference and a second voltage absolute difference between the current parameters and voltage parameters of the electric measurement and metering module and the current parameters and voltage parameters of the device to be charged, and confirming that the working state of the electric measurement and metering module is normal when the second current absolute difference and the second voltage absolute difference are respectively less than corresponding threshold values. Specifically, during the process of charging the vehicle by the charging device, the current charging parameters of the vehicle, such as current parameters and voltage parameters, can be obtained through the charging interface of the vehicle, and the working state of the electric measurement and metering module can be confirmed by comparing the vehicle's charging parameters with the parameters reported by the electric measurement and metering module. That is, the current parameters and voltage parameters in the parameters reported by the electric measurement and metering module and the current parameters and voltage parameters in the charging parameters reported by the vehicle can be obtained, the absolute difference between the two current parameters, that is, the second current absolute difference, and the absolute difference between the two voltage parameters, that is, the second voltage absolute difference, can be obtained. It is confirmed whether the second current absolute difference is less than the corresponding threshold value, such as e11, and at the same time, it is confirmed whether the second voltage absolute difference is less than the corresponding threshold value, such as e12. When both are less than the threshold value, it can be determined that the working status of the electric measurement and metering module is normal.

[0053] In one embodiment, in step S21, the working state of the electric measurement and metering module is confirmed based on the current parameter, voltage parameter and power parameter of the electric measurement and metering module, including: obtaining a second power calculation value based on the current parameter and voltage parameter of the electric measurement and metering module, obtaining a second absolute difference between the second power calculation value and the power parameter of the electric measurement and metering module, and confirming that the working state of the electric measurement and metering module is normal when the second absolute difference is less than the corresponding threshold value. Specifically, it is also possible to directly integrate the voltage and current data obtained by the electric measurement and metering module to calculate the power, that is, to obtain the second power calculation value, further calculate the absolute difference between the second power calculation value and the power uploaded by the electric measurement and metering module, that is, the second absolute difference, and determine whether the second absolute difference is less than the corresponding threshold value, such as e13. If it is less than, it means that the working state of the electric measurement and metering module is normal. Otherwise, it is determined that the working state of the electric measurement and metering module is abnormal, the metering result is inaccurate, and confirmation is required.

[0054] In one embodiment, if Figure 4As shown, the charging device power measurement method of the present invention further includes: S31, obtaining current parameters, voltage parameters, and power parameters corresponding to the charging device, and confirming the operating status of the charging device based on the current parameters, voltage parameters, and power parameters corresponding to the charging device. If the operating status of the charging device is normal, step S3 is executed. That is, before obtaining the third power measurement value corresponding to the charging device, the operating status of the charging device must be confirmed. Only when the charging device is normal can step S3 be executed to obtain the third power measurement value. In one embodiment, the current parameters, voltage parameters, and power parameters of the charging device can be obtained, and the operating status of the charging device can be determined based on the obtained parameters. In one embodiment, the process of confirming the operating status of the charging device can also include determining whether the current parameters, voltage parameters, and power parameters of the charging device can be obtained. If the above parameters of the charging device cannot be obtained, it can be directly determined that the operating status of the charging device is abnormal.

[0055] Optionally, in step S31, the operating status of the charging device is confirmed based on the current parameters, voltage parameters, and power parameters corresponding to the charging device, including: obtaining the current parameters and voltage parameters of the device to be charged based on the output interface corresponding to the charging device; and obtaining a third absolute current difference and a third absolute voltage difference between the current parameters and voltage parameters of the charging device and the current parameters and voltage parameters of the device to be charged, and confirming that the operating status of the charging device is normal when the third absolute current difference and the third absolute voltage difference are respectively less than corresponding threshold values. Specifically, while the charging device is charging a vehicle, the current charging parameters of the vehicle, such as the current parameter and voltage parameter, can be obtained through the vehicle's charging interface, and the operating status of the charging device can be confirmed by comparing the vehicle's charging parameters with the parameters reported by the charging device. Specifically, the current and voltage parameters reported by the charging device and the current and voltage parameters reported by the vehicle can be obtained. The absolute difference between the two current parameters, i.e., a third current absolute difference, and the absolute difference between the two voltage parameters, i.e., a third voltage absolute difference, can be obtained. The third current absolute difference is then determined to be less than a corresponding threshold value, such as e21, and the third voltage absolute difference is also determined to be less than a corresponding threshold value, such as e22. If both are less than a threshold value, the charging device can be determined to be operating normally. In another embodiment, the process of determining the operating status of the charging device can further include determining whether the parameters reported by the operating parameter monitoring circuit in the charging device can be obtained. If the parameters reported by the operating parameter monitoring circuit in the charging device cannot be obtained, the third current absolute difference and the third voltage absolute difference cannot be obtained, and thus the determination that the charging device is operating normally cannot be made. Therefore, the charging device can be directly determined to be abnormal. It should be noted that because the operating parameter monitoring circuit is part of the charging device's operating circuitry, an abnormality in the operating parameter monitoring circuit can indicate a normal charging device abnormality.

[0056] Optionally, in step S31, the operating status of the charging device is confirmed based on the current parameters, voltage parameters, and power parameters corresponding to the charging device, including: obtaining a third calculated power value based on the current parameters and voltage parameters of the charging device, obtaining a third absolute difference between the third calculated power value and the power parameters of the charging device, and confirming that the operating status of the charging device is normal when the third absolute difference is less than a corresponding threshold value. Specifically, the voltage and current data obtained by the charging device can be directly integrated to calculate the power value, namely the third calculated power value, and further calculating the absolute difference between the third calculated power value and the power value uploaded by the charging device, namely the third absolute difference, to determine whether the third absolute difference is less than a corresponding threshold value, such as e23. If so, it indicates that the operating status of the charging device is normal. Otherwise, it is determined that the operating status of the charging device is abnormal, the measurement result is inaccurate, and confirmation is required.

[0057] Optional, such as Figure 5 As shown, in step S5, one of the first power measurement value, the second power measurement value and the third power measurement value is obtained as the measurement result of the charging device according to the pairwise absolute differences, including: S51. When the pairwise absolute differences are all less than the preset value, the power measurement of the charging device is performed by the electric energy meter corresponding to the charging device; S52. When there are two groups of pairwise absolute differences that are less than the preset value, if the two groups of pairwise absolute differences are both associated with the first power measurement value, the first power measurement value is used as the measurement result of the charging device; if the two groups of pairwise absolute differences are both associated with the second power measurement value, the second power measurement value is used as the measurement result of the charging device; if the two groups of pairwise absolute differences are both associated with the third power measurement value, the third power measurement value is used as the measurement result of the charging device.

[0058] Specifically, the absolute difference between the first and second power measurement values, i.e., a pairwise absolute difference, is set to e31; the absolute difference between the first and third power measurement values, i.e., another pairwise absolute difference, is set to e32; and the absolute difference between the second and third power measurement values, i.e., another pairwise absolute difference, is set to e33. If all three values ​​of e31, e32, and e33 are less than the set value e100 (corresponding to the preset value), the metering function of the energy meter is deemed to be normal and reliable. The first power measurement value obtained by the energy meter is used as the basis for billing, and the normal charging process is carried out. If only two of e31, e32, and e33 are less than the set value e100, further determination is required.

[0059] If only e31 and e32 are less than the set value e100, and e33 is greater than or equal to e100, because both e31 and e32 require the first power measurement value (i.e., they are both associated with the first power measurement value), the power data uploaded by the energy meter will be used as the basis for billing, without affecting the current charging or the next charging. At the same time, it indicates that the metering function of the charging device is abnormal and requires calibration and maintenance.

[0060] If only e32 and e33 are less than the set value e100, and the value of e31 is greater than or equal to e100, because both e32 and e33 require the third power measurement value, that is, they are both associated with the third power measurement value, the power data uploaded by the charging device will be used as the billing basis. At the same time, it will not affect the current charging. After the current charging is completed, the charging device enters the calibration and maintenance mode to calibrate the energy meter and power measurement module corresponding to the charging device.

[0061] If only e31 and e33 are less than the set value e100, and e32 is greater than or equal to e100, because both e31 and e33 require the second power measurement value, that is, they are both associated with the second power measurement value, the power data uploaded by the power metering module will be used as the basis for billing. In addition, a prompt message can be generated to indicate that the charging device's metering function requires calibration and maintenance. The generation of the prompt message does not affect the current charging process. After the current charging is completed, the charging device enters the calibration and maintenance mode to calibrate the corresponding power meter of the charging device and the various sampling circuits flowing into the charging device's internal circuits.

[0062] Optional, such as Figure 5 As shown, the charging device power metering method of the present invention further includes: S53, when only one or both of the pairwise absolute differences are not less than a preset value, terminating the charging operation of the charging device. That is, based on the above description, in other cases besides the above, it can be determined that the charging device metering function is abnormal, an alarm message is generated to indicate the abnormality of the relevant device, and the charging process is terminated.

[0063] In the above embodiment, a multi-dimensional cross-verification and hierarchical decision-making mechanism can be implemented in the billing process of charging equipment, which significantly improves the reliability and fault tolerance of the charging metering process of the charging equipment. In particular, a dual verification mode of three-module independent metering + superior integral verification is adopted, and the risk of single device failure is effectively eliminated through cross-comparison of heterogeneous data sources (e31 / e32 / e33) of electricity meters, electricity measurement modules, and charging equipment. Each device has built-in voltage / current real-time comparison and power integral verification, which can quickly identify potential problems such as sensor failure, communication anomalies, and algorithm defects. Build a variety of response plans for abnormal scenarios. Reduce abnormal interruptions in the charging process by reducing multi-module data to achieve the optimal balance between safety and service availability.

[0064] In addition, an electronic device of the present invention has the function of implementing the corresponding steps performed in the above-mentioned method. Each function can be implemented by hardware, or by hardware executing corresponding software implementations. The corresponding hardware or software includes one or more modules corresponding to the above-mentioned functions. That is, the steps of the above-mentioned method are respectively performed by one or more modules. The specific coordination operations between the various modules can be referred to the specific process of the above-mentioned method and will not be repeated here.

[0065] It is understandable that the above embodiments only express the preferred implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the present invention, the above technical features can be freely combined, and several deformations and improvements can be made, all of which fall within the scope of protection of the present invention. Therefore, all equivalent changes and modifications made to the scope of the claims of the present invention should fall within the scope of coverage of the claims of the present invention.

Claims

1. A method for measuring the power consumption of a charging device, characterized in that: The method comprises: Obtaining a first power measurement value corresponding to the charging device according to an electric energy meter corresponding to the charging device; Obtaining a second power measurement value corresponding to the charging device according to the power measurement module corresponding to the charging device; Obtaining a third power measurement value corresponding to the charging device according to the operating parameters reported by the charging device, wherein the charging device obtains the operating parameters of the charging device through an internal operating parameter monitoring circuit; Obtaining pairwise absolute differences between the first power measurement value, the second power measurement value, and the third power measurement value; One of the first power measurement value, the second power measurement value, and the third power measurement value is obtained according to the pairwise absolute differences as a measurement result of the charging device.

2. The charging equipment power measurement method according to claim 1, characterized in that: The method further comprises: Obtain current parameters, voltage parameters, and power parameters of the electric energy meter corresponding to the charging device, confirm the working status of the electric energy meter based on the current parameters, voltage parameters, and power parameters of the electric energy meter, and obtain the first power measurement value when the working status of the electric energy meter is normal.

3. The charging equipment power metering method according to claim 2, characterized in that: The confirming the working state of the electric energy meter according to the current parameter, voltage parameter and electric quantity parameter of the electric energy meter includes: Obtaining current parameters and voltage parameters of the device to be charged according to the output interface corresponding to the charging device; and obtaining a first absolute current difference and a first absolute voltage difference between the current parameters and voltage parameters of the electric energy meter and the current parameters and voltage parameters of the device to be charged, and confirming that the working state of the electric energy meter is normal when the first absolute current difference and the first absolute voltage difference are respectively less than corresponding threshold values; or A first power calculation value is obtained based on the current parameter and voltage parameter of the electric energy meter to obtain a first absolute difference between the first power calculation value and the power parameter of the electric energy meter, and when the first absolute difference is less than the corresponding threshold value, it is confirmed that the working status of the electric energy meter is normal.

4. The charging equipment power metering method according to claim 1, characterized in that: The method further comprises: Obtain current parameters, voltage parameters, and power parameters of the electric measurement and metering module corresponding to the charging device, confirm the working status of the electric measurement and metering module based on the current parameters, voltage parameters, and power parameters of the electric measurement and metering module, and obtain the second power measurement value when the working status of the electric measurement and metering module is normal.

5. The charging equipment power measurement method according to claim 4, characterized in that: The confirming the working state of the electric measurement module according to the current parameter, voltage parameter and electric quantity parameter of the electric measurement module includes: Obtaining current parameters and voltage parameters of the device to be charged according to the output interface corresponding to the charging device; and obtaining a second absolute current difference and a second absolute voltage difference between the current parameters and voltage parameters of the power measurement module and the current parameters and voltage parameters of the device to be charged, and confirming that the working state of the power measurement module is normal when the second absolute current difference and the second absolute voltage difference are respectively less than corresponding threshold values; or A second power calculation value is obtained based on the current parameter and voltage parameter of the power measurement and metering module to obtain a second absolute difference between the second power calculation value and the power parameter of the power measurement and metering module, and when the second absolute difference is less than the corresponding threshold value, it is confirmed that the working status of the power measurement and metering module is normal.

6. The charging equipment power metering method according to claim 1, characterized in that: The method further comprises: Obtain current parameters, voltage parameters, and power parameters corresponding to the charging device to confirm the working status of the charging device based on the current parameters, voltage parameters, and power parameters corresponding to the charging device, and obtain the third power measurement value when the working status of the charging device is normal.

7. The charging equipment power metering method according to claim 6, characterized in that: The determining the working status of the charging device according to the current parameter, voltage parameter, and power parameter corresponding to the charging device includes: Obtaining current parameters and voltage parameters of the device to be charged according to the output interface corresponding to the charging device; and obtaining a third current absolute difference and a third voltage absolute difference between the current parameters and voltage parameters of the charging device and the current parameters and voltage parameters of the device to be charged, and confirming that the working state of the charging device is normal when the third current absolute difference and the third voltage absolute difference are respectively less than corresponding threshold values; or A third power calculation value is obtained based on the current parameter and voltage parameter of the charging device to obtain a third absolute difference between the third power calculation value and the power parameter of the charging device, and when the third absolute difference is less than the corresponding threshold value, it is confirmed that the working status of the charging device is normal.

8. The method for measuring electricity quantity of a charging device according to claim 1, wherein: The acquiring, according to the pairwise absolute differences, one of the first power measurement value, the second power measurement value, and the third power measurement value as a measurement result of the charging device includes: When the pairwise absolute differences are both smaller than a preset value, the power consumption of the charging device is measured by the power meter corresponding to the charging device; When there are two groups of pairwise absolute differences that are smaller than the preset value, If the two groups of absolute differences are both correlated with the first power measurement value, the first power measurement value is used as the measurement result of the charging device; If the two groups of pairwise absolute differences are both correlated with the second power measurement value, the second power measurement value is used as the measurement result of the charging device; If the two groups of pairwise absolute differences are both correlated with the third power measurement value, the third power measurement value is used as the measurement result of the charging device.

9. The charging equipment power metering method according to claim 8, characterized in that: The method further comprises: When only one group of the pairwise absolute differences or both of the pairwise absolute differences are not less than the preset value, the charging operation of the charging device is terminated.

10. An electronic device, characterized in that: The electronic device comprises: a module for executing the method according to any one of claims 1 to 9.

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