Electric energy meter function testing device and system
By designing a functional testing device for electricity meters, the device automatically configures and triggers the functional testing parameters of electricity meters and collects operational data, thus solving the problems of low efficiency and poor accuracy in electricity meter testing and achieving efficient and accurate automated testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN CLOU ELECTRONICS
- Filing Date
- 2025-04-17
- Publication Date
- 2026-05-19
AI Technical Summary
Existing electricity meter functional testing is inefficient and inaccurate, and manual operation is prone to errors and delays, making it difficult to achieve consistency.
Design a functional testing device for electricity meters, including a parameter configuration module, a control module, and a data reading module. The device automatically configures test parameters and triggers the operation function of the electricity meter. Combined with the data reading module, it automatically collects and transmits the operation data to a data analysis platform.
The system automates the functional testing of electricity meters, improving testing efficiency and accuracy, reducing errors and delays caused by manual operation, and ensuring the consistency of test results.
Smart Images
Figure CN224263388U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electricity meter technology, and in particular to an electricity meter function testing device and system. Background Technology
[0002] An electricity meter is an instrument used to measure electrical energy, and it is the main basis for electricity users and power supply departments to settle electricity bills.
[0003] Currently, the functionality of electricity meters is typically tested manually. However, due to the numerous functions of electricity meters and the complexity of the testing process, it usually requires professionals to spend a significant amount of time and effort to complete the tests. This not only results in low testing efficiency but also makes manual testing prone to errors and delays, leading to poor test accuracy. Utility Model Content
[0004] The main purpose of this utility model is to provide a device and system for testing the function of electricity meters, which aims to automatically test the function of electricity meters in order to improve the testing efficiency and accuracy of electricity meter function.
[0005] To achieve the above objectives, this utility model proposes a device for testing the function of an electricity meter, comprising:
[0006] A parameter configuration module, which is connected to the electricity meter, is used to output a configuration signal carrying the test parameters of the target function to the electricity meter after receiving the target function test command signal from the electricity meter.
[0007] A control module, connected to the electricity meter, is used to output a target function operation signal to the electricity meter after receiving a target function test parameter configuration completion signal from the electricity meter, so as to trigger the electricity meter to run the target function;
[0008] A data reading module, the input end of which is connected to the electricity meter, and the output end of which is connected to a data analysis platform, is used to read the operating data of the electricity meter during the operation of the target function, and transmit the operating data to the data analysis platform.
[0009] In one embodiment, the parameter configuration module includes a signal recognition unit, a memory, and a signal output unit;
[0010] The memory includes multiple storage areas, each of which stores different test parameters for the functions of the electricity meter.
[0011] The signal input terminal of the signal output unit is connected to the output terminal of the signal recognition unit, the data input terminal of the signal output unit is used to connect to the data channels of each storage area in the memory, and the output terminal of the signal output unit is connected to the energy meter.
[0012] The signal identification unit is used to decode the target function test command signal after receiving the target function test command signal of the energy meter, so as to output the decoded address signal to the signal output unit.
[0013] The signal output unit is configured to, upon receiving the address signal, connect to the data channel of the storage area corresponding to the target function to convert the test parameters stored in the storage area corresponding to the target function into the configuration signal.
[0014] In one embodiment, the signal recognition unit is a signal decoder.
[0015] In one embodiment, the signal output unit includes a multiplexer and a signal converter;
[0016] The signal input terminal of the multiplexer is connected to the signal identification unit, and each data input terminal of the multiplexer is used to connect to the data channel of each storage area in the memory. The input terminal of the signal converter is connected to the output terminal of the multiplexer, and the output terminal of the signal converter is connected to the energy meter.
[0017] The multiplexer is used to connect the data channel of the storage area corresponding to the target function after receiving the address signal, so as to output the test parameters stored in the storage area corresponding to the target function to the signal converter.
[0018] The signal converter is used to convert the test parameters stored in the storage area corresponding to the target function into the configuration signal.
[0019] In one embodiment, the control module is a first controller.
[0020] In one embodiment, the data reading module is a communication interface chip.
[0021] In one embodiment, the energy meter function testing device further includes a power control module;
[0022] The control module is connected to the verification device connected to the energy meter. After receiving the target function test command signal of the energy meter, it outputs a trigger signal carrying the power consumption scenario information corresponding to the target function to the verification device, so as to trigger the verification device to adjust the power consumption scenario of the energy meter.
[0023] In one embodiment, the source control module is a second controller.
[0024] In one embodiment, the source control module and the verification device are connected via a network cable.
[0025] In addition, to achieve the above objectives, this utility model also provides an electricity meter function testing system, which includes an electricity meter, a calibration device, and the electricity meter function testing device as described above.
[0026] The energy meter function testing device is connected to the energy meter and the calibration device respectively, and the energy meter is connected to the calibration device.
[0027] This utility model provides a device for testing the function of an electricity meter, including a parameter configuration module, a control module, and a data reading module. The parameter configuration module is connected to the electricity meter and, after receiving a target function test command signal from the electricity meter, outputs a configuration signal carrying the test parameters for the target function to the electricity meter. The control module is also connected to the electricity meter and, after receiving a target function test parameter configuration completion signal from the electricity meter, outputs a target function operation signal to the electricity meter to trigger the electricity meter to operate the target function. The input end of the data reading module is connected to the electricity meter, and the output end is connected to a data analysis platform. The data reading module reads the operating data during the operation of the target function of the electricity meter and transmits the operating data to the data analysis platform.
[0028] Therefore, this invention connects a parameter configuration module and a control module to the electricity meter, respectively. When testing the electricity meter's functionality, the parameter configuration module automatically configures the test parameters for the corresponding functions. After the test parameters are configured, the control module automatically triggers the meter to run the corresponding function, thus automatically testing the meter's functionality. Furthermore, this invention also includes a data reading module connected to both the electricity meter and a data analysis platform. This module automatically reads the operating data during the meter's function execution and transmits the read data to the data analysis platform. By analyzing the received operating data on the data analysis platform, it can be determined whether the tested electricity meter is functioning correctly.
[0029] In summary, the energy meter function testing device provided by this utility model can automatically test the function of the energy meter. Compared with conventional testing methods that require manual configuration of parameters, control of function operation and data collection, it is not only more efficient but also more accurate. Attached Figure Description
[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0031] Figure 1 This is a schematic diagram of the structure of the energy meter function testing device provided in the first embodiment of the present invention;
[0032] Figure 2 A schematic diagram of the specific structure of the energy meter function testing device provided in the first embodiment of this utility model;
[0033] Figure 3 This is a schematic diagram of the structure of the signal output unit provided in the first embodiment of the present invention;
[0034] Figure 4 This is a schematic diagram of the structure of the energy meter function testing device provided in the second embodiment of the present invention;
[0035] Figure 5 A schematic diagram of the specific structure of the energy meter function testing device provided in the second embodiment of this utility model;
[0036] Figure 6 A schematic diagram of the structure of the electricity meter function testing system provided in this embodiment of the utility model.
[0037] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.
[0038] Explanation of icon numbers:
[0039] 10. Parameter configuration module; 20. Control module; 30. Data reading module; 40. Control source module; 100. Energy meter; 200. Verification device; 11. Signal identification unit; 12. Signal output unit; M1. Memory; M2. Multiplexer; M3. Signal converter; U1. First controller; U2. Second controller; Ux. Communication interface chip. Detailed Implementation
[0040] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0042] It should be noted that the descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.
[0043] An electricity meter is an instrument used to measure electrical energy, and it is the main basis for electricity users and power supply departments to settle electricity bills.
[0044] Currently, the functionality of electricity meters is typically tested manually. However, due to the numerous functions of electricity meters and the complexity of the testing process, it usually requires professionals to spend a significant amount of time and effort to complete the tests. This not only results in low testing efficiency but also makes manual testing prone to errors and delays, leading to poor test accuracy.
[0045] In addition, manual testing has poor repeatability, and it is difficult to achieve consistency in test results.
[0046] Based on this, the present invention provides a device for testing the function of an electricity meter. In the first embodiment of the present invention, please refer to... Figure 1 The energy meter function testing device may include a parameter configuration module 10, a control module 20 and a data reading module 30;
[0047] The parameter configuration module 10 is connected to the energy meter 100 and is used to output a configuration signal carrying the test parameters of the target function to the energy meter 100 after receiving the target function test command signal from the energy meter 100.
[0048] The control module 20 is connected to the energy meter and is used to output a target function operation signal to the energy meter 100 after receiving the target function test parameter configuration completion signal output by the energy meter 100, so as to trigger the energy meter 100 to run the target function.
[0049] The input end of the data reading module 30 is connected to the electricity meter, and the output end of the data reading module 30 is connected to the data analysis platform. It is used to read the operating data of the electricity meter 100 during the operation of the target function and transmit the operating data to the data analysis platform.
[0050] It should be noted that the target function refers to the function of the electricity meter to be tested. The target function can be Bluetooth communication, 485 / carrier communication, event full recording, electricity and demand metering, time-of-use rate metering, etc. This embodiment does not specifically limit this. The test parameters that need to be configured for the electricity meter 100 are different depending on the electricity meter function being tested. For example, if the target function is 485 / carrier communication, the required test parameters may include the baud rate to be tested; if the target function is event full recording, the required test parameters may include the lower limit value of the overcurrent event trigger and the delay time; if the target function is electricity and demand metering, the required test parameters may include the number of time zone periods, the current time zone table, the current time period table, and the demand cycle; if the target function is time-of-use rate metering, the required test parameters may include the number of time zone periods, the current time zone table, the standby time zone table, the time zone table switching time, weekends and current time period tables, and may also include the public holiday table and the daytime table number used for weekends.
[0051] Additionally, it should be noted that the target function test instruction signal is used to indicate that the target function of the energy meter needs to be tested; the target function test parameter configuration completion signal is used to indicate that the energy meter has completed the configuration of the test parameters for the target function; and the target function operation signal is used to trigger the energy meter 100 to run the target function.
[0052] In one feasible implementation, please refer to Figure 2 The control module 20 can be the first controller U1.
[0053] In other feasible embodiments, the control module 20 may also include a voltage comparator, an AND / OR gate logic circuit, and a relay drive circuit connected in sequence. The input terminal of the voltage comparator is connected to the energy meter 100, and the output terminal of the relay drive circuit is connected to the energy meter 100. The voltage comparator can determine whether the electrical signal output by the energy meter 100 to the control module 20 is valid by comparing the voltage magnitudes of the electrical signals, thereby determining whether the energy meter 100 outputs a target function test parameter configuration completion signal. The AND / OR gate logic circuit can convert the target function test parameter configuration completion signal into trigger logic and generate a drive signal accordingly. The relay drive circuit can convert the drive signal into a drive signal recognizable by the energy meter 100 (such as a high level, pulse, etc.) to obtain the target function operation signal and output the target function operation signal to the energy meter 100. This embodiment does not specifically limit the specific structure of the control module 20.
[0054] In one feasible implementation, please refer to Figure 2 The data reading module 30 can be a communication interface chip Ux.
[0055] It should be noted that the communication interface chip Ux can be an RS485 interface chip (suitable for energy meters that support the RS485 communication protocol), an SPI (Serial Peripheral Interface) interface chip (suitable for energy meters that support the SPI communication protocol), or an RS232 chip (suitable for energy meters that support the RS232 communication protocol), etc. This embodiment does not make specific limitations on it.
[0056] In one feasible implementation, please refer to Figure 2 The parameter configuration module 10 may include a signal recognition unit 11, a memory M1, and a signal output unit 12;
[0057] The memory M1 includes multiple storage areas, each storing different test parameters for the functions of the energy meter.
[0058] The signal input terminal of the signal output unit 12 is connected to the output terminal of the signal recognition unit 11, the data input terminal of the signal output unit 12 is used to connect to the data channels of each storage area in the memory M1, and the output terminal of the signal output unit 12 is connected to the power supply 100.
[0059] The signal recognition unit 11 is used to decode the target function test command signal after receiving the target function test command signal from the energy meter 100, so as to output the decoded address signal to the signal output unit 12.
[0060] The signal output unit 12 is used to connect to the data channel of the storage area corresponding to the target function after receiving the address signal, so as to convert the test parameters stored in the storage area corresponding to the target function into configuration signals.
[0061] It should be noted that the address signal is used to indicate the address of the storage area for the test parameters of the target function. The memory M1 can be a read-only memory (ROM), a programmable read-only memory (PROM), or an electrically erasable programmable read-only memory (EEPROM), etc., and this embodiment does not specifically limit its type. The signal identification unit 11 can be a signal decoder or other devices or circuits with decoding functions. For example, the signal frequencies of test command signals for different functions may be different; therefore, the signal identification unit 11 can be a frequency detection circuit composed of a filter circuit and a flip-flop. Similarly, the voltages of test command signals for different functions may be different; therefore, the signal identification unit 11 can be a comparator circuit. This embodiment does not specifically limit the specific structure of the signal identification unit 11.
[0062] In one feasible implementation, please refer to Figure 3 The signal output unit 12 may include a multiplexer M2 and a signal converter M3;
[0063] The signal input terminal of the multiplexer M2 is connected to the signal identification unit 11. Each data input terminal of the multiplexer M2 is used to connect to the data channel of each storage area in the memory M1. The input terminal of the signal converter M3 is connected to the output terminal of the multiplexer M2. The output terminal of the signal converter M3 is connected to the energy meter 100.
[0064] Multiplexer M2 is used to connect the data channel of the storage area corresponding to the target function after receiving the address signal, so as to output the test parameters stored in the storage area corresponding to the target function to signal converter M3.
[0065] The signal converter M3 is used to convert the test parameters stored in the storage area corresponding to the target function into configuration signals.
[0066] It should be noted that after the signal input terminal of the multiplexer (MUX) is connected to the signal identification unit 11, the address signal received by the multiplexer M2 at its signal input terminal will serve as the address line of the multiplexer M2. Therefore, the multiplexer M2 will select the data channel of the corresponding memory region for connection through this address line. For example, if the address signal is "00", the multiplexer M2 will select the data channel of the memory region corresponding to address line "00"; if the address signal is "01", the multiplexer M2 will select the data channel of the memory region corresponding to address line "01".
[0067] In other feasible implementations, combinational logic circuits (such as logic circuits formed by combining NAND gates and NOR gates) can be used instead of multiplexer M1. This embodiment does not specifically limit the structural composition of signal output unit 12.
[0068] Additionally, it should be noted that the signal converter M3 can be a digital-to-analog converter (DAC) or other devices or circuits with digital-to-analog conversion functions, and this embodiment does not specifically limit it.
[0069] As described above, this embodiment connects the parameter configuration module 10 and the control module 20 to the electricity meter, respectively. When testing the function of the electricity meter 100, the parameter configuration module 10 automatically configures the test parameters for the corresponding function. After the electricity meter 100 has completed the configuration, the control module 20 automatically triggers the electricity meter 100 to run the corresponding function, thus automatically testing the electricity meter's function. Furthermore, this embodiment also includes a data reading module 30 connected to both the electricity meter 100 and the data analysis platform. This module can automatically read the operating data of the electricity meter 100 during the operation of its corresponding function and transmit the read operating data to the data analysis platform. Therefore, by analyzing the received operating data on the data analysis platform, it can be determined whether the tested electricity meter function is normal.
[0070] In summary, the electricity meter function testing device provided in this embodiment can automatically test the electricity meter function. Compared with conventional testing methods that require manual configuration of parameters, control of function operation and data collection, it is not only more efficient but also more accurate.
[0071] For example, assuming the target function is Bluetooth communication, based on the energy meter function testing device provided in this embodiment, when the control module 20 triggers the energy meter 100 to run the Bluetooth communication function, and when the data reading module 30 reads the running data, the specific operation process and running data recording process will include:
[0072] Step a1: Reset the Bluetooth converter;
[0073] Step b1: Connect to the energy meter 100 via Bluetooth;
[0074] Step c1 involves repeatedly performing the operation of "outputting relevant instructions to the electricity meter 100 via Bluetooth communication and reading the response data from the electricity meter 100";
[0075] In step d1, the data reading module 30 transmits all the read response data to the data analysis platform. By analyzing the ratio of the total number of response data to the number of times relevant instructions are output to the energy meter 100, the pass rate is determined. Then, by comparing the pass rate with the set pass rate threshold, it is determined whether the Bluetooth communication function of the energy meter 100 is normal.
[0076] For example, assuming the target function is 485 / carrier communication, based on the energy meter function testing device provided in this embodiment, the specific operation process and operation data recording process when the control module 20 triggers the energy meter 100 to run the 485 / carrier communication function and the data reading module 30 reads the operation data will include:
[0077] Step a2: Modify the baud rate of the electricity meter 100 to the baud rate to be measured, 1;
[0078] Step b2 involves repeatedly performing the operation of "outputting relevant instructions to the electricity meter 100 via 485 / carrier communication and reading the response data from the electricity meter 100";
[0079] Step c2: Repeat steps a2 to b2 until all baud rates to be tested are completed;
[0080] In step d2, the data reading module 30 transmits all the read response data to the data analysis platform. By analyzing the ratio of the total number of response data to the number of times relevant instructions are output to the energy meter 100, the pass rate is determined. Then, by comparing the pass rate with the set pass rate threshold, it is determined whether the 485 / carrier communication function of the energy meter 100 is normal.
[0081] For example, assuming the target function is time-of-use rate metering, based on the electricity meter function testing device provided in this embodiment, the specific operation process and operation data recording process when the control module 20 triggers the time-of-use rate metering function of the electricity meter 100 and the data reading module 30 reads the operation data will include:
[0082] Step a3: Set the time of electricity meter 100 to 01:00:00 on January 1st, and read the positive active power of rate 1 three times during the reading test.
[0083] Step b3: Set the time of electricity meter 100 to 02:00:00 on January 1st, and read the positive active power of rate 2 three times during the reading test.
[0084] Step c3: Continue with the rate test for the next period, that is, repeat the above operation of "setting the time of the electricity meter 100 to January 1st 0N:00:00, and reading the positive active power of rate N three times during the reading test" until the rate test for all periods is completed.
[0085] Step d3: Set the time of electricity meter 100 to 01:00:00 on February 1st, and read the positive active power of rate 1 three times during the reading test.
[0086] Step e3: Set the time of electricity meter 100 to 01:00:00 on March 1st, and read the positive active power of rate 1 three times during the reading test.
[0087] Step f3: Continue with the rate test for the next month, that is, repeat the above operation of "setting the time of electricity meter 100 to 01:00:00 on the 1st of month N, and reading the positive active power of rate 1 three times during the reading test" until the rate test for all months is completed.
[0088] Step g3: Read the current time of the electricity meter 100 and set the second set of switching time to 00:00 on January 1, 2024; for example, if the current time of the electricity meter 100 is December 1, 2023, then the second set of switching time is set to 00:00 on January 1, 2024.
[0089] Step h3: Set the time of the electricity meter to 23:59:50 on December 31, 2023, wait 30 seconds, and the reading switch freeze is normal;
[0090] Step i3: Set the time of electricity meter 100 to 01:00:00 on January 1st, and read the positive active power of rate 1 three times during the reading test.
[0091] Step j3: Set the time of electricity meter 100 to 01:00:00 on February 1st, and read the positive active power of rate 1 three times during the reading test.
[0092] Step k3: Continue with the rate test for the next month, that is, repeat the above operation of "calibrating the electricity meter 100 to 01:00:00 on the first day of month N, and reading the positive active power of rate 1 three times during the reading test" until the rate test for all months is completed.
[0093] Step 13: The data reading module 30 transmits the rate test data for each time period to the data analysis platform to determine whether the time-period rate metering function of the electricity meter 100 is normal by determining whether the electricity consumption read in each time period has increased.
[0094] Furthermore, if the configured test parameters also include the daytime meter number used for public holidays and weekends, then the specific operating procedures and operating data recording procedures when the control module 20 triggers the operating rate metering function of the electricity meter 100 and when the data reading module 30 reads the operating data may also include:
[0095] Step m3: During the data transfer test, based on the configured time zone table and time period table, the positive active power of the relevant time zone and time period rate is read three times.
[0096] If public holidays, weekends, and regular hours overlap, public holidays take priority (i.e., the electricity consumption is processed according to the public holiday rate), and the corresponding electricity consumption rate for public holidays will increase normally. If weekends and regular hours overlap, weekends take priority (i.e., the electricity consumption is processed according to the weekend rate), and the corresponding electricity consumption rate for weekends will increase normally. If none of these overlap, the corresponding electricity consumption rate for regular hours will increase normally.
[0097] Based on the first embodiment described above, a second embodiment of the energy meter function testing device of this utility model is proposed. For the second embodiment, please refer to... Figure 4 The energy meter function testing device may also include a control source module 40;
[0098] The power control module 40 is connected to the verification device 200 connected to the energy meter 100. After receiving the target function test command signal from the energy meter 100, it outputs a trigger signal carrying the power consumption scenario information corresponding to the target function to the verification device 200, so as to trigger the verification device 200 to adjust the power consumption scenario of the energy meter.
[0099] It should be noted that the power consumption scenarios involved in testing different functions are different, and different electrical parameters correspond to different power consumption scenarios. These electrical parameters may include, but are not limited to, the magnitude of the current, the magnitude of the voltage, the phase angle of the current, and / or the phase angle of the voltage, etc., but this embodiment does not impose specific limitations on them. Based on this, the power consumption scenario information can be used to record the electrical parameters required when the energy meter 100 operates the target function.
[0100] For example, assuming the target function is a full event recording function, the power consumption scenarios involved could be overvoltage, overcurrent, or undervoltage scenarios. Therefore, the calibration device 200 can adjust the voltage or current of the energy meter 100 to adapt the power consumption scenarios of the energy meter 100 to the power consumption scenarios required when testing the full event recording function.
[0101] For example, assuming the target function is the metering of electricity consumption and demand, the electricity usage scenarios involved can include the reading scenarios in different quadrants (i.e., the first quadrant, the second quadrant, the third quadrant, and the fourth quadrant). Therefore, the calibration device 200 can adjust the phase angle of the current and / or the phase angle of the voltage of the electricity meter 100 to adapt the electricity usage scenarios of the electricity meter 100 to the electricity usage scenarios required when testing the metering function of electricity consumption and demand.
[0102] In one feasible implementation, to reduce latency, the control source module 40 can quickly transmit the trigger signal to the verification device 200 to quickly trigger the verification device 200 to adjust the power consumption scenario of the energy meter 100. The control source module 40 can be connected to the verification device 200 via a network cable.
[0103] In other feasible implementations, the source control module 40 can also be connected to the verification device 200 via a serial port, and this embodiment does not specifically limit this.
[0104] In one feasible implementation, please refer to Figure 5 The source control module 40 can be the second controller U2.
[0105] It should be noted that after receiving the target function test command signal from the energy meter 100, the second controller U2 can obtain the power consumption scenario information corresponding to the target function from the internal storage area or the external storage device; then, the second controller U2 can send the trigger signal carrying the power consumption scenario information to the verification device 200 through the corresponding communication interface.
[0106] In other feasible embodiments, the structure of the control source module 40 can be similar to that of the parameter configuration module 10 mentioned in the previous embodiment, that is, it can also include a signal decoder, a memory, a multiplexer, and a signal converter. Similarly, the signal decoder can be replaced by a frequency detection circuit or a comparator circuit, and the multiplexer can be replaced by a combinational logic circuit. This embodiment does not specifically limit the specific structure of the control source module 40.
[0107] As can be seen from the above, this embodiment connects the control module 40 to the verification device 200 connected to the electricity meter 100. Therefore, when testing the electricity meter's function involving adjustments to the electricity usage scenario, the control module 40 can automatically trigger the verification device 200 to adjust the electricity usage scenario without manual intervention. Thus, compared to conventional testing methods, this embodiment further improves the testing efficiency and accuracy of the electricity meter's function.
[0108] For example, assuming the target function is the event full recording function, the configured overcurrent event trigger lower limit is 1.2 times the rated current of the energy meter 100, and the delay time is 30 seconds, then based on the energy meter function testing device provided in this embodiment, when the control module 20 triggers the energy meter 100 to run the event full recording function, and when the data reading module 30 reads the running data, the specific operation process and running data recording process will include:
[0109] Step a4: The control source module 40 triggers the verification device 200 to adjust the current of the energy meter 100 to 1.4 times the rated current, and then delays for 30 seconds and then waits for an additional 5 seconds to make the energy meter 100 generate an overcurrent event.
[0110] Step b4: The control source module 40 triggers the verification device 200 to adjust the current of the energy meter 100 to the rated current, and then delays for 30 seconds and then waits for an additional 5 seconds to allow the energy meter 100 to end the overcurrent event.
[0111] Step c4: The data reading module 30 reads the recorded data of the most recent overcurrent event recorded by the energy meter;
[0112] Step d4: Repeat steps a4 to c4 until the number of executions reaches 11 (the maximum number of overcurrent events that the electricity meter 100 can record is 10).
[0113] In step e4, the data reading module 30 transmits all the recorded data of each overcurrent event to the data analysis platform to determine whether the event full recording function of the energy meter 100 is normal by analyzing whether the record number, event start time, event end time and positive active power of these overcurrent events are correct.
[0114] For example, assuming the target function is the metering function of electricity and demand, then based on the electricity meter function testing device provided in this embodiment, when the control module 20 triggers the electricity meter 100 to operate the electricity and demand metering function, and when the data reading module 30 reads the operating data, the specific operating process and operating data recording process will include:
[0115] Step a5: The control source module 40 triggers the verification device 200 to adjust the voltage phase angle and / or current phase angle of the energy meter 100 to any phase angle in the first quadrant (e.g., 45 degrees).
[0116] Step b5: Set the time of electricity meter 100 to 01:00:00, and during the reading test, read the positive active power, reactive power in the first quadrant, positive active demand, and reactive demand in the first quadrant for rate 1 in three separate readings.
[0117] Step c5: Set the time of electricity meter 100 to 02:00:00, and during the reading test, read the positive active power, reactive power in the first quadrant, positive active demand, and reactive demand in the first quadrant for rate 2 in three separate readings.
[0118] Step d5: Continue with the rate test for the next time period, that is, repeat the above operation of "setting the electricity meter 100 to 0N:00:00 and reading the positive active power, reactive power in the first quadrant, positive active demand, and reactive demand in the first quadrant for rate N in three separate readings during the reading test" until the rate test for all time periods is completed.
[0119] Step e5: Following the steps for testing the first quadrant, proceed with the word-walking tests in the second, third, and fourth quadrants in sequence.
[0120] In step f5, the data reading module 30 transmits the rate test data of each quadrant to the data analysis platform to determine whether the metering function of the electricity meter 100 is normal by determining whether the electricity consumption read in each time period has increased.
[0121] Furthermore, if the configured test parameters also include three settlement days (e.g., 00:00 on the 1st, 00:00 on the 10th, and 00:00 on the 28th), and the configured demand cycle is 1 minute, then when the control module 20 triggers the electricity meter 100 to operate the electricity and demand metering function, and when the data reading module 30 reads the operating data, the specific operating process and operating data recording process may also include:
[0122] Step g5: The control module 40 triggers the verification device 200 to adjust the voltage of the energy meter 100 to the rated voltage and the current to the rated current. After the energy meter 100 has been running for 2 minutes (1 minute longer than the demand cycle), the current is disconnected, and the current positive active power and active demand are read.
[0123] Step h5: Set the time of the electricity meter 100 (it can be set to 10 seconds before the current settlement day being tested), so that the electricity meter 100 automatically passes settlement day 1 after power-on and reads the settlement data (electricity consumption, demand) and current demand;
[0124] Step i5: Following the test steps for settlement date 1, conduct tests for settlement date 2 and settlement date 3 in sequence;
[0125] In step j5, the data reading module 30 transmits the settlement data and current demand for each settlement day to the data analysis platform to determine whether the metering function of the electricity meter 100 is normal by analyzing the settlement data and current demand.
[0126] Step k5: The control source module 40 triggers the verification device 200 to adjust the voltage of the energy meter 100 to the rated voltage and the current to the rated current. After the energy meter 100 has been running for 2 minutes, the current is disconnected and the current positive active power and active demand are read.
[0127] Step 15: Set the time of electricity meter 100 so that electricity meter 100 automatically passes settlement day 1 when power is off, and then power it on to read the settlement data and current demand.
[0128] Step m5: Following the test steps for settlement date 1, conduct tests for settlement date 2 and settlement date 3 in sequence;
[0129] Step n5: The data reading module 30 transmits the settlement data and current demand for each settlement day to the data analysis platform to determine whether the electricity meter 100's electricity and demand metering functions are normal when the power is off by analyzing the settlement data and current demand.
[0130] This utility model embodiment also provides an electricity meter function testing system, please refer to... Figure 6 The electricity meter function testing system may include an electricity meter 100, a calibration device 200, and the aforementioned electricity meter function testing device; the electricity meter function testing device is connected to both the electricity meter 100 and the calibration device 200, and the electricity meter 100 is connected to the calibration device 200. The structure of this electricity meter function testing device can be referred to the above embodiment, and will not be repeated here.
[0131] It should be noted that the calibration device 200 can be a portable calibration device. The electricity meter 100 and the calibration device 200 can be connected via voltage and current lines.
[0132] The electricity meter function testing system provided in this embodiment can automatically test the functions of electricity meters, thereby improving the testing efficiency and accuracy. Since the electricity meter function testing system in this embodiment includes all the technical solutions of all the above-described embodiments of the electricity meter function testing device, and the achieved technical effects are exactly the same, it will not be repeated here.
[0133] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A device for testing the function of an electricity meter, characterized in that, include: A parameter configuration module, which is connected to the electricity meter, is used to output a configuration signal carrying the test parameters of the target function to the electricity meter after receiving the target function test command signal from the electricity meter. A control module, connected to the electricity meter, is used to output a target function operation signal to the electricity meter after receiving a target function test parameter configuration completion signal from the electricity meter, so as to trigger the electricity meter to run the target function; A data reading module, the input end of which is connected to the electricity meter, and the output end of which is connected to a data analysis platform, is used to read the operating data of the electricity meter during the operation of the target function, and transmit the operating data to the data analysis platform.
2. The energy meter function testing device as described in claim 1, characterized in that, The parameter configuration module includes a signal recognition unit, a memory, and a signal output unit; The memory includes multiple storage areas, each of which stores different test parameters for the functions of the electricity meter. The signal input terminal of the signal output unit is connected to the output terminal of the signal recognition unit, the data input terminal of the signal output unit is used to connect to the data channels of each storage area in the memory, and the output terminal of the signal output unit is connected to the energy meter. The signal identification unit is used to decode the target function test command signal after receiving the target function test command signal of the energy meter, so as to output the decoded address signal to the signal output unit. The signal output unit is configured to, upon receiving the address signal, connect to the data channel of the storage area corresponding to the target function to convert the test parameters stored in the storage area corresponding to the target function into the configuration signal.
3. The energy meter function testing device as described in claim 2, characterized in that, The signal recognition unit is a signal decoder.
4. The energy meter function testing device as described in claim 2, characterized in that, The signal output unit includes a multiplexer and a signal converter; The signal input terminal of the multiplexer is connected to the signal identification unit, and each data input terminal of the multiplexer is used to connect to the data channel of each storage area in the memory. The input terminal of the signal converter is connected to the output terminal of the multiplexer, and the output terminal of the signal converter is connected to the energy meter. The multiplexer is used to connect the data channel of the storage area corresponding to the target function after receiving the address signal, so as to output the test parameters stored in the storage area corresponding to the target function to the signal converter. The signal converter is used to convert the test parameters stored in the storage area corresponding to the target function into the configuration signal.
5. The energy meter function testing device as described in claim 1, characterized in that, The control module is the first controller.
6. The energy meter function testing device as described in claim 1, characterized in that, The data reading module is a communication interface chip.
7. The energy meter function testing device as described in any one of claims 1 to 6, characterized in that, The energy meter function testing device also includes a power control module; The control module is connected to the verification device connected to the energy meter. After receiving the target function test command signal of the energy meter, it outputs a trigger signal carrying the power consumption scenario information corresponding to the target function to the verification device, so as to trigger the verification device to adjust the power consumption scenario of the energy meter.
8. The energy meter function testing device as described in claim 7, characterized in that, The source control module is the second controller.
9. The energy meter function testing device as described in claim 7, characterized in that, The source control module and the verification device are connected via a network cable.
10. A functional testing system for an electricity meter, characterized in that, The electricity meter function testing system includes an electricity meter, a calibration device, and an electricity meter function testing device as described in any one of claims 1 to 9; The energy meter function testing device is connected to the energy meter and the calibration device respectively, and the energy meter is connected to the calibration device.