Method and apparatus for testing high frequency interference tolerance of power line carrier communication module

Abstract

This application provides a method and apparatus for testing the high-frequency interference tolerance of a power line carrier communication module. The method includes: acquiring the test configuration information and operating status information of the module under test to confirm that the module is under weak current power supply and the network is normal; controlling the interference source to inject a constant current mode high-frequency interference signal into the module; acquiring the status detection information of multiple designated protection devices; and acquiring the communication detection data of the module performing network communication operation with the central coordinator after power-on; and comprehensively judging the module's qualification based on the detection data. This method, by introducing a multi-dimensional detection mechanism and combining it with the standardized process steps of interference injection, power-off restart, and network verification, solves the problem of being unable to assess the actual tolerance capability of the module under high-frequency interference. It can quantitatively evaluate the device status, significantly improve the efficiency and accuracy of quality verification, and the unified test process and quantitative judgment standard ensure the repeatability and traceability of the test results, meeting the needs of R&D testing.

Description

Technical Field

[0001] This application relates to the field of power line carrier communication testing technology, and in particular to a method and apparatus for testing the high-frequency interference tolerance of a power line carrier communication module. Background Technology

[0002] With the rapid development of smart grids and electricity consumption information collection technologies, power line carrier communication (PLC) is widely used in scenarios such as distribution area electricity consumption data collection, load control, and remote meter reading due to its advantages such as no need for additional wiring and wide coverage. As the local communication unit of a single-phase meter, the operational stability of the PLC module directly affects the meter reading success rate and data acquisition quality of the entire distribution area. The gradual maturation of related technologies such as power grid harmonic analysis, high-frequency interference simulation, and device thermal characteristic testing provides a certain testing foundation for the reliability assessment of PLC modules.

[0003] However, traditional performance evaluation schemes for power line carrier communication modules in high-frequency interference environments still have significant shortcomings in practical applications. First, current mainstream testing schemes mostly use general-purpose instruments such as multimeters to measure the effective value of harmonics, only obtaining the vector sum of the fundamental and harmonic frequencies. They cannot decompose each harmonic component, simulate real power grid high-frequency interference signals, or assess their actual physical impact on the module's internal protection devices. They also ignore the state problems of protection devices after interference is applied, making it difficult for test results to reflect the module's tolerance under actual operating conditions. Second, traditional testing schemes lack complete standardized testing procedures and unified specifications, leading to poor comparability of test results due to differences in testing operations. Furthermore, traditional schemes lack unified pass / fail criteria, making it difficult to provide reliable quantitative basis for module design optimization during the R&D testing phase. Summary of the Invention

[0004] This application proposes a high-frequency interference tolerance test method and apparatus for power line carrier communication modules. The method aims to inject high-frequency interference in a constant current mode, combined with a standardized timing sequence of stopping output, power off, and power on again. It combines multi-dimensional detection and quantitative judgment based on apparent state, surface temperature, and network communication success rate. This solves the problem that existing solutions cannot simulate high-frequency interference and evaluate the actual physical impact of protection devices. It also eliminates the subjective interpretation differences among different testers and improves the efficiency of quality verification and the accuracy of reliability assessment during the module R&D testing phase.

[0005] In a first aspect, embodiments of this application provide a high-frequency interference tolerance test method for a power line carrier communication module, applied to a host computer in an electricity consumption information acquisition system. The electricity consumption information acquisition system further includes a central coordinator, a single-phase electricity meter, and a power line carrier communication module, wherein the power line carrier communication module is a local communication unit of the single-phase electricity meter; the method includes: Obtain test configuration information and operating status information for the power line carrier communication module. The operating status information includes at least the power supply status information and network communication status information of the power line carrier communication module. If the power supply status information indicates weak power supply, and the network communication status information indicates that the network communication function of the central coordinator is normal, then according to the test configuration information, the interference source is controlled to inject interference signals into the power input terminal of the power line carrier communication module. The frequency, current amplitude, and duration of the interference signal in constant current mode are determined by the test configuration information. Constant current mode refers to the output mode in which the current amplitude remains constant. After the preset time expires, the status detection information of multiple designated protection devices on the power line carrier communication module is obtained, and the communication detection data of the power line carrier communication module performing network communication operation with the central coordinator after power-on is obtained. The status detection information is used to indicate the physical status of multiple designated protection devices, and the communication detection data is used to indicate the success rate of network communication between the power line carrier communication module and the central coordinator. Based on the status detection information and communication detection data, the pass / fail determination result of the power line carrier communication module is output.

[0006] Secondly, embodiments of this application provide a high-frequency interference tolerance testing device for a power line carrier communication module, applied to a host computer in an electricity information acquisition system. The electricity information acquisition system further includes a central coordinator, a single-phase electricity meter, and a power line carrier communication module, wherein the power line carrier communication module is the local communication unit of the single-phase electricity meter; the device includes: The information acquisition unit is used to acquire test configuration information and working status information for the power line carrier communication module. The working status information includes at least the power supply status information and network communication status information of the power line carrier communication module. The interference injection unit is used to control the interference source to inject interference signals into the power input terminal of the power line carrier communication module according to the test configuration information if the power supply status information indicates weak power supply and the network communication status information indicates that the network communication function of the central coordinator is normal. The frequency, current amplitude, and duration of the interference signal in constant current mode are determined by the test configuration information. Constant current mode refers to the output mode in which the current amplitude remains constant. The data detection unit is used to acquire the status detection information of multiple designated protection devices on the power line carrier communication module after a preset time period, and to acquire the communication detection data of the power line carrier communication module performing network communication operation with the central coordinator after power-on. The status detection information is used to indicate the physical status of multiple designated protection devices, and the communication detection data is used to indicate the success rate of network communication between the power line carrier communication module and the central coordinator. The result determination unit is used to output the qualification determination result of the power line carrier communication module based on the status detection information and communication detection data.

[0007] Thirdly, embodiments of this application provide an electronic device including a processor, a memory, and one or more programs, the one or more programs being stored in the memory and configured to be executed by the processor, the programs including instructions for performing the steps as described in the first aspect of embodiments of this application.

[0008] Fourthly, embodiments of this application provide a computer-readable storage medium having a computer program / instructions stored thereon, which, when executed by a processor, implement the steps in the first aspect of embodiments of this application.

[0009] Fifthly, embodiments of this application provide a computer program product, including a computer program / instructions, which, when executed by a processor, implement some or all of the steps described in the first aspect of embodiments of this application.

[0010] As can be seen from the embodiments of this application, a high-frequency interference signal is injected into the power input terminal of the module in constant current mode to simulate the actual coupling path of high-frequency interference in the power grid. Combined with the standardized timing sequence of stopping the interference source output, powering off the module, and re-powering on via a single-phase meter after the interference ends, this solves the problems of large operational differences and poor comparability of results in existing test schemes. Furthermore, by acquiring apparent state detection data, surface temperature detection data, and network communication detection data with the central coordinator after power-on, a multi-dimensional comprehensive judgment system is constructed: a pass / fail judgment is output when all designated protection devices are free from physical damage, surface temperatures do not exceed preset temperature thresholds, and the network communication success rate reaches a preset success rate threshold; and targeted rectification suggestions are output based on different reasons for non-compliance, such as optimizing module wiring, changing the type of protection device, or adjusting the layout of protection devices. The unified quantitative judgment standard eliminates subjective differences in human judgment, providing a clear and reliable quantitative basis for module design optimization during the R&D and testing phase, effectively improving the reliability of the module in high-frequency interference environments. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of an electricity consumption information collection system provided in an embodiment of this application; Figure 2 This is a flowchart illustrating a high-frequency interference tolerance test method for a power line carrier communication module provided in an embodiment of this application. Figure 3 This is a functional unit block diagram of a high-frequency interference tolerance testing device for a power line carrier communication module provided in an embodiment of this application; Figure 4 This is a functional unit block diagram of another high-frequency interference tolerance testing device for a power line carrier communication module provided in this application embodiment; Figure 5 This is a structural block diagram of an electronic device provided in an embodiment of this application. Detailed Implementation

[0013] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0014] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0015] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0016] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of an electricity consumption information collection system provided in an embodiment of this application. Figure 1As shown, the electricity information acquisition system 100 includes a host computer 110, an interference source 120, a central coordinator 130, a single-phase electricity meter 140, and a power line carrier communication module 150. The interference source 120 includes a signal generator 121 and a power amplifier 122. The power line carrier communication module 150 is the local communication unit of the single-phase electricity meter 140, forming a complete test closed loop of "host computer control - interference injection - status detection - communication verification".

[0017] Specifically, the host computer 110 is the central control core of the test system, establishing communication connections with the interference source 120, the central coordinator 130, and the single-phase meter 140, respectively. It is responsible for acquiring test configuration instructions, monitoring the test status in real time, and outputting the final judgment result. The interference source 120 includes a signal generator 121 and a power amplifier 122. The output of the signal generator 121 is connected to the input of the power amplifier 122, and the output of the power amplifier 122 is connected to the L-phase terminal and N-phase terminal of the power line carrier communication module 150. The central coordinator 130 is used to perform network communication operations with the power line carrier communication module 150 after the interference ends and after it is re-powered, to verify whether the communication function of the module is normal. The single-phase meter 140 is used to provide low-voltage power to the power line carrier communication module 150 and to perform power-off and power-on operations on the power line carrier communication module 150 after the interference ends.

[0018] In the high-frequency interference tolerance test system, the host computer 110 is responsible for acquiring test configuration information and operating status information. The operating status information includes the power supply status information of the power line carrier communication module 150 obtained from the single-phase meter 140, and the network communication status information obtained from the central coordinator 130. After confirming that the power supply status information indicates weak current supply and that the network communication status information indicates normal network communication function with the central coordinator 130, the host computer 110 controls the interference source 120 to inject a high-frequency interference signal into the power input terminal of the power line carrier communication module 150. The host computer 110 is also used to acquire, after a preset time period, the apparent status detection data and surface temperature detection data of multiple designated protection devices on the power line carrier communication module 150, and the communication detection data of the power line carrier communication module 150 performing network communication operations with the central coordinator 130 after being powered on again. Finally, based on the apparent status detection data, surface temperature detection data, and communication detection data, the host computer 110 outputs a pass / fail judgment result.

[0019] Furthermore, after acquiring the test configuration information, the host computer 110 controls the signal generator 121 to output a sine wave signal with the corresponding frequency and amplitude to the power amplifier 122 based on the preset frequency and preset signal amplitude in the test configuration information. The host computer 110 also controls the power amplifier 122 to select constant current mode output based on the preset current amplitude in the test configuration information, and adjusts the gain of the power amplifier 122 so that its output current value reaches the preset current amplitude. The power amplifier 122 then injects the amplified high-frequency interference signal into the power line carrier communication module 150 through the L-phase and N-phase terminals on the high-voltage side.

[0020] Typically, the electricity information acquisition system 100 may include a host computer 110. The host computer 110 can simultaneously control one or more groups of interference sources 120 to perform parallel tests on multiple power line carrier communication modules 150. Each test system includes a central coordinator 130 and a single-phase meter 140. The single-phase meter 140 is responsible for providing working power to the module under test and performing a power-on operation. The central coordinator 130 is responsible for performing network communication tests with the module under test, realizing standardized and automated testing of the module's high-frequency interference tolerance. This ensures the consistency of the test process and meets the quality assessment requirements of the module during the R&D verification stage.

[0021] Based on this, the present application provides a high-frequency interference tolerance test method for a power line carrier communication module. The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0022] Please see Figure 2 , Figure 2 This is a flowchart illustrating a high-frequency interference tolerance test method for a power line carrier communication module provided in this application embodiment. The method is applied to the host computer 110 in an electricity information acquisition system 100. The electricity information acquisition system 100 also includes a central coordinator 130, a single-phase electricity meter 140, and a power line carrier communication module 150, whereby the power line carrier communication module 150 is the local communication unit of the single-phase electricity meter. The method includes: Step S201: Obtain test configuration information and working status information for the power line carrier communication module.

[0023] The operating status information includes at least the power supply status information and network communication status information of the power line carrier communication module.

[0024] For example, the test configuration information may include a preset frequency of 150kHz, a preset signal amplitude of 10Vpp, a preset current amplitude of 2A, and a preset duration of 10 minutes. The preset frequency corresponds to the characteristic frequency of high-frequency interference on the power line, the preset current amplitude corresponds to the constant current value output by the interference source, and the preset duration corresponds to the time required for the protection device to reach a stable temperature response.

[0025] Furthermore, when the preset frequency is set to 150kHz, this frequency point covers the specific operating frequency band (50kHz~200kHz) of power line carrier communication, which can simulate the impact of high-frequency interference in this band on the power line carrier communication module. In other test scenarios, the preset frequency can be adjusted according to the actual high-frequency interference characteristics under different application scenarios to adapt to the test requirements of modules of different specifications.

[0026] Step S202: If the power supply status information indicates weak power supply, and the network communication status information indicates that the network communication function of the central coordinator is normal, then according to the test configuration information, the interference source is controlled to inject interference signals into the power input terminal of the power line carrier communication module.

[0027] Among them, "normal network communication function" means that the power line carrier communication module and the central coordinator have completed the standard networking process, and the power line carrier communication module can respond to the meter reading instructions issued by the central coordinator and return the metering data; "weak power supply" means that the power line carrier communication module is powered by a 12V DC power supply and its internal circuit is in full working condition.

[0028] The frequency, current amplitude, and duration of the constant current mode for the interference signal are determined by the test configuration information. Constant current mode refers to an output mode where the current amplitude remains constant. Specifically, when the interference source injects an interference signal into the module under test, the output current amplitude remains constant and does not fluctuate with changes in load impedance. Unlike constant voltage mode (constant output voltage), constant current mode ensures that the amplitude of the interference current injected into the module remains stable even when the impedance at the module's power input changes, thus guaranteeing consistency in the interference energy experienced by different batches of modules under test. The test configuration information is preset by the tester according to the specifications of the module under test. The frequency is used to simulate the frequency of high-frequency interference on power lines, the current amplitude is used to control the energy intensity of the injected interference, and the duration is used to specify the period of interference application to ensure that the temperature response of the protection device reaches a stable state during the interference process.

[0029] As can be seen in this example, by first obtaining the test configuration information and working status information, and after confirming that the module is under low-voltage power supply and the network communication is normal, the interference source is controlled to inject an interference signal into the power input terminal of the module in constant current mode. This allows the interference signal to continuously and stably act on the internal protection device of the module within a preset time, providing a consistent and controllable interference application condition for the subsequent appearance status detection and surface temperature detection of the protection device. This ensures the repeatability of the test results and meets the requirements for test consistency in the R&D testing phase.

[0030] In one possible embodiment, the interference source includes a signal generator and a power amplifier; before controlling the interference source to inject an interference signal into the power input terminal of the power line carrier communication module according to the test configuration information, the method further includes: controlling the signal generator to output a sine wave signal; inputting the sine wave signal into the power amplifier, controlling the power amplifier to select a constant current mode output, and adjusting the gain of the power amplifier so that the current value output by the power amplifier reaches a preset current amplitude determined according to the test configuration information.

[0031] The frequency of the sine wave signal is a preset frequency determined according to the test configuration information, and the amplitude of the sine wave signal is a preset signal amplitude determined according to the test configuration information. Regarding the specific selection of components, a DG1062Z signal generator and an LYC-400C power amplifier can be used.

[0032] Furthermore, the power line carrier communication module is powered by a 12V power supply, and the signal generator and power amplifier are connected via DuPont wires.

[0033] The signal generator is used to generate low-power sine wave signals, and the frequency and amplitude of its output signal can be precisely adjusted according to the test configuration information. The power amplifier is used to amplify the low-power sine wave signal output by the signal generator into a high-frequency, high-power interference signal, and its working mode can be switched between constant voltage mode and constant current mode.

[0034] Furthermore, constant current mode output is chosen in this example because it ensures that the amplitude of the interference current injected into the module's power input remains constant, without fluctuating with changes in the equivalent impedance of the module's power input, thus ensuring consistency in the interference energy experienced by different modules under test. The sinusoidal signal output by the signal generator corresponds to the characteristic frequency of high-frequency interference on power lines, and its amplitude corresponds to the driving voltage at the power amplifier's input. By adjusting the gain of the power amplifier, the output current can reach a preset current amplitude, thereby simulating the actual interference path of high-frequency interference signals in the power grid coupled to the module's interior through the power port. This provides interference excitation that closely resembles actual operating conditions for the withstand capability testing of protection devices, thereby improving the accuracy and reliability of the test results.

[0035] As can be seen in this example, by cascading a signal generator and a power amplifier, the signal generator first generates a sine wave signal with precise controllable frequency and amplitude, and then the power amplifier amplifies the signal to the required current amplitude. This achieves independent and precise adjustment of the interference signal frequency and current amplitude, thereby adapting to the different requirements of power line carrier communication modules of different specifications for test parameters and improving the flexibility and versatility of the test system.

[0036] In one possible embodiment, according to the test configuration information, the interference source is controlled to inject an interference signal into the power input terminal of the power line carrier communication module, including: controlling the signal generator and the power amplifier to inject a sinusoidal interference signal between the L-phase terminal and the N-phase terminal on the high-voltage side of the power line carrier communication module, and the current amplitude of the interference signal is kept constant at a preset current amplitude.

[0037] The L-phase and N-phase terminals on the high-voltage side refer to the AC power input interfaces of the power line carrier communication module. These are the direct connection points between the module's internal protection devices (including TSS (Transient Surge Suppressor), TVS (Transient Voltage Suppressor Diode), diodes, coupling transformers, and safety capacitors) and the external power lines. High-frequency interference signals are injected into the module through the L-phase and N-phase terminals, simulating the physical path of high-frequency harmonic interference in the actual power grid coupled to the module's input ports via the power lines. A sine wave is chosen as the waveform for the interference signal because the high-frequency harmonic components in the power grid exhibit sinusoidal characteristics in the time domain. Using a sine wave signal can more realistically simulate the actual interference environment, making the test results closer to the module's tolerance performance under actual operating conditions. Specifically, the constant current mode is used to maintain a constant current in the loop between the L-phase and N-phase terminals on the high-voltage side of the power line carrier communication module. This constant current output is provided by a power amplifier.

[0038] As can be seen, in this example, by injecting a high-frequency interference signal in the form of a sine wave between the L-phase terminal and the N-phase terminal on the high-voltage side, the interference signal enters the internal circuit along the actual power input path of the module, thereby more realistically simulating the actual working condition of high-frequency interference from the power grid coupling to the internal protection devices of the module through the power port, and improving the correlation between the test results and the actual operating performance of the module.

[0039] Step S203: After the preset time expires, acquire the status detection information of multiple designated protection devices on the power line carrier communication module, and acquire the communication detection data of the power line carrier communication module performing network communication operation with the central coordinator after power-on.

[0040] Among them, the status detection information is used to indicate the physical status of multiple designated protection devices, and the communication detection data is used to indicate the success rate of network communication between the power line carrier communication module and the central coordinator.

[0041] The specified protection devices refer to those installed at the power input of the power line carrier communication module, including TSS, TVS, diodes, coupling transformers, and safety capacitors. These protection devices suppress surges and spikes on the power line during normal module operation. However, when high-frequency interference signals are injected, the interference energy concentrates on these devices, causing their temperature to rise and even resulting in physical damage. Therefore, by acquiring status detection information and communication detection data, the module's tolerance to high-frequency interference can be comprehensively evaluated. The status detection information includes apparent status detection data and surface temperature detection data. Apparent status detection data indicates whether there are physical damage phenomena such as bulging, cracking, or blackening on the surface of the protection devices. Surface temperature detection data indicates the surface temperature value of the protection devices, used to determine whether the devices have exceeded their safe operating range due to overheating. The communication detection data indicates whether the module can restore normal communication function after the interference ends, thus characterizing whether the interference has caused permanent damage to the internal circuitry of the module.

[0042] Furthermore, it is important to note that physical damage is distinct from soldering. Soldering refers to the melting of solder on the component's pads. After testing, the solder automatically returns to its original position, indicating that the component itself is not damaged. Soldering does not cause short circuits or open circuits in the component.

[0043] As can be seen, in this example, by simultaneously acquiring the status detection information of the protection device and the communication detection data after the module is powered on again after the interference ends, the module's tolerance is comprehensively evaluated from two dimensions: the physical state of the device (apparent damage and temperature) and the communication function of the module (networking success rate). This solves the problem that existing solutions only focus on electrical parameter values ​​while ignoring the actual physical damage and functional failure of the protection device.

[0044] In one possible embodiment, before acquiring the status detection information of multiple designated protection devices on the power line carrier communication module, the method further includes: controlling the signal generator and power amplifier to stop outputting at the end of a preset time period; controlling the power line carrier communication module to be powered off; controlling the power line carrier communication module to establish a connection with a single-phase meter, the connection including at least one of physical connection, electrical connection and communication connection; and powering the power line carrier communication module back on through the single-phase meter.

[0045] For example, in a specific test instance, the preset duration is 10 minutes. When the 10 minutes are up, the host computer first controls the signal generator and power amplifier to stop output simultaneously; then it controls the 12V low-voltage power supply of the power line carrier communication module to be disconnected; then the module is removed from the test environment and inserted into the standard interface of a single-phase meter, establishing a physical, electrical, and communication connection between the module and the single-phase meter; finally, the module is powered back on using the 220V AC power provided by the single-phase meter. In the above sequence, there is no additional time interval requirement between the interruption source stopping output and the module being powered back on; the module enters the functional verification state immediately after being powered back on.

[0046] The above steps define the timing control process from the end of the interference to the acquisition of status detection information. "Re-powering" means that during the interference application, the power line carrier communication module remains in a low-voltage (12V) operating state. After the interference ends, the interference source is first stopped, then the low-voltage power supply to the module is cut off, and then the module is reconnected to the single-phase meter and powered again through the 220V AC power provided by the single-phase meter, thus switching the module from the "interference application state" to the "functional verification state." The connection includes at least one of physical, electrical, and communication connections. This means that the module and the single-phase meter not only need physical connection and electrical conduction but also need to establish a communication handshake to ensure that the module can be normally recognized and powered by the single-phase meter. During the interference application process, the low-voltage power supply to the power line carrier communication module remains continuous, and the power line carrier communication module is in a fully operational state. After the preset duration ends, the interference source output is first shut off, then the low-voltage power supply to the power line carrier communication module is cut off. Next, the power line carrier communication module is inserted into a single-phase electricity meter, and the AC power supplied by the single-phase meter powers the module back on. Finally, a network communication test is performed. This scheme is a tolerance test, testing whether the module can still function normally after the high-frequency interference ends, rather than testing whether the module can maintain normal operation during the continuous interference. Therefore, stopping the interference source output and disconnecting the power after the interference ends, and then powering it back on for functional verification, simulates the scenario where the module experiences interference and then resumes operation in actual applications, making the test results more practically valuable. The single-phase electricity meter is a terminal device in the electricity information collection system, and it connects to the power line carrier communication module via a standard interface. When the module is inserted into the single-phase electricity meter, the single-phase electricity meter provides 220V operating power to the module through its power output terminal and establishes a communication connection to enable subsequent network and data collection operations.

[0047] As can be seen in this example, by executing the standardized sequence of "stopping the output of the interference source, powering off, establishing a connection with the single-phase meter, and powering back on" after the preset time has elapsed, the timing boundary between the end of interference and functional testing has been clarified. This avoids the impact of differences in the timing of operations by different testers on the test results, making the test process consistent and traceable, and ensuring the comparability of test results between different test batches.

[0048] In one possible embodiment, acquiring communication detection data of the power line carrier communication module performing network communication operation with the central coordinator after power-on includes: after the power line carrier communication module is powered on again, controlling the power line carrier communication module to perform network operation with the central coordinator, and performing data acquisition operation after successful network formation; repeating the network formation operation and data acquisition operation a preset number of times, recording whether each data acquisition operation is successful, and using the proportion of successful times out of the preset number of times as communication detection data.

[0049] The central coordinator is the network coordination node in the electricity information collection system. It is responsible for establishing a network connection with the local communication units (i.e., the power line carrier communication modules) of each single-phase electricity meter and issuing meter reading commands. Networking operation refers to the process of establishing a communication link between the power line carrier communication module and the central coordinator. Only after successful network establishment can the module receive data collection commands from the central coordinator and return meter reading data. Data collection operation refers to the module responding to the central coordinator's meter reading commands after successful network establishment and reporting the electricity meter reading data to the central coordinator.

[0050] In this example, the networking and data acquisition operations are repeated a preset number of times (e.g., 5 times), and the success rate of each data acquisition operation is recorded. The percentage of successful data acquisitions out of the total number of successful data acquisitions is used as communication detection data. This allows for a quantitative assessment of whether the module still possesses complete communication functionality after experiencing high-frequency interference. Successful networking only indicates that the module can establish a connection, while successful data acquisition proves that the module's communication function is completely normal. The closer the communication detection data is to 100%, the stronger the module's functional recovery capability after experiencing high-frequency interference; conversely, it indicates that the interference has caused permanent damage to the module's internal circuitry, preventing its communication function from being fully restored.

[0051] As can be seen, in this example, by repeatedly performing networking and data acquisition operations a total of a preset number of times and quantifying the degree of communication function recovery with the success rate, the communication test data can objectively and quantitatively reflect the communication function status of the module after experiencing high-frequency interference, providing a clear numerical basis for qualification judgment, eliminating the subjective judgment differences of different testers on "normal communication", and effectively improving the accuracy and consistency of the judgment results.

[0052] Step S204: Based on the status detection information and communication detection data, output the qualification judgment result of the power line carrier communication module.

[0053] In step S204, the module is powered off and its status is checked only after the interference source stops outputting. This ensures the operator's safety by eliminating the need to face the interference source during the inspection process.

[0054] In one possible embodiment, the pass / fail determination result includes a pass / fail determination result, the output conditions of which are: the appearance condition detection data indicates that none of the multiple designated protection devices have physical damage; the surface temperature detection data indicates that the surface temperature of the multiple designated protection devices does not exceed a preset temperature threshold; and the communication detection data indicates that the network communication success rate between the power line carrier communication module and the central coordinator is greater than or equal to a preset success rate threshold; when all output conditions are met, the pass / fail determination result of the power line carrier communication module is output.

[0055] The condition detection information includes apparent condition detection data and surface temperature detection data. The apparent condition detection data is used to indicate whether there is physical damage to multiple specified protective devices, and the surface temperature detection data is used to indicate the surface temperature value of multiple specified protective devices.

[0056] Further, the appearance state detection data refers to the surface physical state information of the plurality of specified protection devices (including TSS, TVS, diodes, coupling transformers and safety capacitors) obtained by visual inspection or image acquisition, which is used to indicate whether each protection device has physical damage such as bulging, cracking, blackening, etc. The physical damage refers to the irreversible physical change of the packaging material of the protection device caused by overheating or concentrated electrical stress after the device bears high-frequency interference energy—bulging is manifested as the bulge and deformation of the packaging surface, cracking is manifested as cracking or bursting of the package, and blackening is manifested as carbonization and discoloration of the packaging surface. Once the above physical damage occurs, it indicates that the protection device has been permanently damaged and cannot restore its original protection function. The surface temperature detection data refers to the surface temperature values of the plurality of specified protection devices measured by an infrared constant temperature tester or a hand-held temperature measuring gun immediately after the interference ends, which is used to determine whether each protection device exceeds its safe operating temperature range due to the concentration of high-frequency interference energy. The preset temperature threshold is set according to the device type with the highest temperature sensitivity among the plurality of specified protection devices (for example, the withstand limit of TSS devices is 260°C), and the temperature index is judged as qualified only when the surface temperature of all protection devices does not exceed this threshold. Among the plurality of specified protection devices, the temperature response is mainly concentrated on the TSS device, that is, the high-frequency interference energy should be dissipated by the TSS device preferentially, so as to avoid the overall temperature rise exceeding the standard caused by energy dispersion to other protection devices. The preset success rate threshold refers to the qualification standard that the ratio of the number of successful times to the total number of times shall meet when the networking operation and data acquisition operation are repeated for a preset number of times (for example, 5 times) (for example, 100%). The communication function index is judged as qualified only when the communication detection data reaches or exceeds this threshold.

[0057] For example, in a specific test, after a power line carrier communication module is subjected to 10 minutes of 2A constant current high-frequency interference, visual inspection shows that the TSS, TVS, diode, coupling transformer and safety capacitor all have no bulging, cracking or blackening, so the appearance state detection data is qualified; an infrared constant temperature tester measures that the surface temperature of the TSS device is 98°C and the surface temperature of the TVS device is 102°C, neither of which exceeds the preset temperature threshold of 260°C, so the surface temperature detection data is qualified; after powering on again, 5 times of networking and data acquisition operations are performed with the central coordinator, all 5 times of data acquisition are successful, and the communication success rate is 100%, which reaches the preset success rate threshold. All the above three conditions are satisfied, and the upper computer outputs the judgment result that the power line carrier communication module is qualified.

[0058] The pass / fail determination is set to only output a pass / fail result when all three conditions mentioned above are met. This is because, in the high-frequency interference tolerance test, the module's "pass" must simultaneously meet the following three levels of requirements: Device level—all designated protective devices show no physical damage, indicating that the module's hardware structure is not damaged; Thermal stress level—the surface temperature of all designated protective devices does not exceed the preset temperature threshold, indicating that the module is within a safe and controllable range in terms of thermal stress; Functional level—after power-on, the module can successfully network with the central coordinator and complete data acquisition, indicating that the module's communication function has been fully restored. These three conditions correspond to the three dimensions of device physical integrity, thermal safety, and functional availability, respectively. Only when all three dimensions are met simultaneously can it be proven that the module has complete tolerance capability under high-frequency interference. Failure to meet any condition indicates a defect in that dimension, requiring targeted rectification.

[0059] As can be seen, in this example, by setting three dimensions of pass / fail criteria—apparent state detection, surface temperature detection, and network communication success rate detection—a pass / fail result is only output when all three conditions are met simultaneously. This achieves a multi-dimensional quantitative assessment of the module's tolerance capability, avoiding misjudgments that may be caused by single-dimensional criteria, and improving the accuracy and reliability of the test results. At the same time, the unified quantitative criteria eliminate the subjective differences in "pass" and "fail" judgments among different testers, making the test results comparable and traceable.

[0060] In one possible embodiment, the pass / fail determination result also includes a fail / fail determination result. The output conditions for the fail / fail determination result are as follows: if the apparent condition detection data indicates that any of the multiple specified protection devices has physical damage, then the power line carrier communication module is output as a fail / fail determination result, and a first rectification suggestion for instructing the optimization of module routing is output; if the surface temperature detection data indicates that the surface temperature of the multiple specified protection devices exceeds a preset temperature threshold, then the power line carrier communication module is output as a fail / fail determination result, and a second rectification suggestion for instructing the replacement of the protection device type is output; if the communication detection data indicates that the network communication success rate between the power line carrier communication module and the central coordinator does not reach a preset success rate threshold, then the power line carrier communication module is output as a fail / fail determination result, and a third rectification suggestion for instructing the optimization of module routing or adjusting the layout of protection devices is output.

[0061] The three non-compliance scenarios mentioned above correspond to different physical mechanisms and rectification directions. The first scenario (physical damage to any protective device) indicates that high-frequency interference energy concentrates on a certain path at the module's power input, causing localized overheating exceeding the tolerance limit of the device's packaging material. This is usually caused by uneven impedance distribution of the protective device traces in the module's PCB (Printed Circuit Board) layout, concentrating interference energy on paths with lower impedance. The rectification suggestion for this scenario, "optimize module traces," refers to adjusting the PCB layout to make the parasitic inductance and resistance of each protective device's branch more consistent, thereby distributing interference energy evenly among the protective devices and preventing energy concentration leading to localized overheating and damage. For example, in one test, visual inspection revealed bulging and slight blackening on the surface of the TVS device, while the TSS, diodes, coupling transformer, and safety capacitors showed no obvious abnormalities. Based on the appearance inspection data, the host computer determined the module to be non-compliant and output the first rectification suggestion, "optimize module traces." Based on this suggestion, the R&D personnel adjusted the trace width and length of the branch containing the TVS device in the PCB layout to make the parasitic impedance of each protection device branch more balanced, so as to avoid interference energy being concentrated on the TVS device.

[0062] Furthermore, the second scenario (the surface temperature of the protection device exceeds the preset temperature threshold) indicates that the power dissipation capability of the selected protection device is insufficient to withstand high-frequency interference energy. This is usually due to insufficient selection margin of the protection device—its rated power or thermal resistance parameters cannot meet the heat dissipation requirements under actual interference conditions. The rectification suggestion of "replacing the type of protection device" for this scenario refers to replacing it with a similar protection device that has higher power dissipation capability or lower thermal resistance, thereby reducing the temperature rise of the device under the same interference energy. For example, in one test, visual inspection showed no physical damage such as bulging, cracking, or blackening on any of the protection devices. However, the infrared thermostat measured the surface temperature of the TSS device at 285℃, exceeding the preset temperature threshold of 260℃. Based on the surface temperature detection data, the host computer determined that the module was unqualified and output the second rectification suggestion of "replacing the type of protection device." The R&D personnel, based on this suggestion, replaced it with a similar TSS device with a higher rated power, reducing the temperature rise of the device under the same interference energy to below the threshold.

[0063] Furthermore, the third scenario (network communication success rate not reaching the preset success rate threshold) indicates that although high-frequency interference did not cause obvious apparent damage or temperature exceedances to the protection devices, the interference energy had already coupled to the internal communication circuit of the module through the power input terminal, causing permanent damage to the communication chip or signal link. This results in the module being able to power on but unable to communicate normally. The reason is usually that the layout of the protection devices failed to effectively block the conduction path of interference energy to the internal communication circuit. The proposed rectification suggestion for this scenario, "optimize module routing or adjust the layout of protection devices," refers to further adjusting the physical position of the protection devices based on optimized routing, so that the interference energy is fully absorbed and discharged by the protection devices before entering the internal communication circuit, thereby protecting the internal communication circuit from interference damage. For example, in one test, visual inspection showed no physical damage to any of the protection devices, and the surface temperature did not exceed the preset temperature threshold. However, after powering on again, five networking and data acquisition operations were performed with the central coordinator, with only three data acquisitions succeeding, resulting in a communication success rate of 50%, which did not reach the preset success rate threshold of 100%. The host computer determined that the module was unqualified based on the communication test data and output a third rectification suggestion: "Optimize the module wiring or adjust the layout of the protection devices." The R&D personnel adjusted the physical position of the protection devices according to this suggestion, ensuring that high-frequency interference energy was fully absorbed and discharged by the protection devices before entering the internal communication circuit, thereby protecting the communication circuit from interference damage.

[0064] As can be seen in this example, by outputting corresponding rectification suggestions for three different reasons for non-compliance, testers can directly locate the root cause of the problem and take targeted improvement measures based on the non-compliance judgment results. This provides clear directional guidance for hardware design optimization of the module during the R&D and testing phase, effectively shortens the cycle of problem location and solution iteration, and improves the R&D efficiency of the module.

[0065] In one possible embodiment, the host computer can simultaneously connect to multiple interference sources and multiple power line carrier communication modules to perform high-frequency interference tolerance tests on multiple modules under test in parallel. The host computer configures independent test configuration information for each module under test, and acquires the operating status information, status detection information, and communication detection data of each module, and outputs the pass / fail judgment results for each module.

[0066] Parallel execution refers to the host computer applying interference signals to multiple modules under test (DUTs) simultaneously using multi-threading or multi-task scheduling, and monitoring the test progress of each module separately. Each DUT corresponds to an independent set of interference sources (including signal generators and power amplifiers) and an independent test channel, with electrical isolation and no interference between the test channels. The host computer stores test configuration information, operating status information, status detection information, and communication detection data for each DUT, and performs pass / fail determination for each module separately.

[0067] In R&D testing scenarios, it is often necessary to perform batch testing on multiple power line carrier communication modules to verify consistency between different modules and to screen out defective products. Through parallel testing, the host computer can complete the testing of multiple modules in the same amount of time. Compared with the method of testing one by one, this significantly shortens the testing cycle of batch modules and improves the testing efficiency in the R&D testing phase.

[0068] As can be seen, in this example, by connecting multiple interference sources and multiple modules under test to the host computer simultaneously, the parallel execution of high-frequency interference tolerance testing is realized, which significantly improves the testing efficiency of batch modules and meets the actual needs of multi-module screening and consistency verification in the R&D testing phase.

[0069] In one possible embodiment, the host computer also generates a test report based on the pass / fail determination result. The test report includes the module identifier of the power line carrier communication module, test configuration information, appearance status detection data and surface temperature detection data of each protection device, network communication success rate, pass / fail determination result, and rectification suggestions. The test report can be output by the host computer to a display device or printing device via the communication interface for test personnel to view and archive.

[0070] The module identifier includes at least one of the following: module model, serial number, or batch number, used to uniquely identify the module under test; test configuration information includes preset frequency, preset signal amplitude, preset current amplitude, and preset duration; appearance status detection data includes records of physical damage phenomena such as bulging, cracking, or blackening of each protection device; surface temperature detection data includes the surface temperature measurement values ​​of each protection device; rectification suggestions are output according to the type of non-compliance judgment result (physical damage, excessive temperature, or communication failure), corresponding to suggestions for optimizing module wiring, changing the type of protection device, or optimizing module wiring / adjusting the layout of protection devices. Communication interfaces include wired interfaces (such as USB (Universal Serial Bus) interface, Ethernet interface) and wireless interfaces (such as Wi-Fi interface (Wireless Fidelity), Bluetooth interface), display devices include a monitor connected to the host computer, and printing devices include a printer connected to the host computer.

[0071] During the R&D testing phase, testers need to summarize, analyze, and trace a large amount of test data to evaluate the reliability and consistency of the module design. A host computer automatically generates test reports containing complete test information and outputs them to display or printing devices. Testers can directly view or print these reports for archiving, eliminating the need for manual recording and organization of test data. This avoids errors and omissions that may be introduced by manual recording and improves the efficiency and accuracy of test data management.

[0072] As can be seen in this example, the host computer automatically generates a test report containing module identifiers, test configuration information, status detection data, communication detection data, pass / fail judgment results, and rectification suggestions. This achieves automatic archiving and traceable management of test data, providing complete data support for subsequent quality analysis and design improvement, and meeting the management requirements for traceability of test data in the R&D testing phase.

[0073] As can be seen, in this application process, step S201 obtains test configuration information and working status information; step S202, after confirming that the module is under weak current power supply and the network is normal, injects a high-frequency interference signal into the module's power input terminal in constant current mode; step S203, after the interference ends, executes a standardized timing sequence of stopping output, power off, and power on again, and obtains apparent status detection data, surface temperature detection data, and network communication success rate; step S204, based on the detection data of the three dimensions, comprehensively judges the module's qualification and outputs corresponding rectification suggestions, forming a complete test method covering interference application, device testing, communication verification, comprehensive judgment, and rectification guidance. This method can simulate the actual coupling path of high-frequency interference in the power grid, quantitatively evaluate the physical damage and temperature response of protection devices, unify the test process and judgment standards, eliminate the subjective interpretation differences of different testers, and provide clear quantitative basis for the design optimization of the module in the R&D testing stage. This effectively improves the quality verification efficiency and reliability assessment accuracy of power line carrier communication modules in high-frequency interference environments, meeting the R&D testing needs of smart grid power line carrier communication modules.

[0074] The following are embodiments of the apparatus of this application. These embodiments of the apparatus and the embodiments of the method of this application belong to the same concept and are used to execute the methods described in the embodiments of this application. For ease of explanation, only the parts related to the apparatus embodiments of this application are shown in the embodiments of this application. For specific technical details not disclosed, please refer to the description of the embodiments of the method of this application, which will not be repeated here.

[0075] This application provides a high-frequency interference tolerance testing device for a power line carrier communication module, applied to a first server in a data processing system. Specifically, the high-frequency interference tolerance testing device for the power line carrier communication module is used to execute the steps performed by the first server in the above-described high-frequency interference tolerance testing method for the power line carrier communication module. The high-frequency interference tolerance testing device for the power line carrier communication module in this application may include modules corresponding to the respective steps.

[0076] This application embodiment can divide the high-frequency interference tolerance testing device for power line carrier communication modules into functional modules according to the above method example. For example, each function can be divided into its own functional module, or two or more functions can be integrated into one processing module. The integrated module can be implemented in hardware or as a software functional module. The module division in this application embodiment is illustrative and only represents one logical functional division; other division methods may be used in actual implementation.

[0077] When dividing each function into modules according to its corresponding function. Figure 3 This is a functional unit block diagram of a high-frequency interference tolerance testing device for a power line carrier communication module provided in this application embodiment; the high-frequency interference tolerance testing device for the power line carrier communication module is applied to... Figure 1 The power consumption information acquisition system 100 shown includes a host computer 110. The system also includes a central coordinator 130, a single-phase electricity meter 140, and a power line carrier communication module 150, where the power line carrier communication module 150 is the local communication unit of the single-phase electricity meter. The device includes: an information acquisition unit 301, used to acquire test configuration information and operating status information for the power line carrier communication module, the operating status information including at least the power supply status information and network communication status information of the power line carrier communication module; and an interference injection unit 302, used to, if the power supply status information indicates weak current power supply and the network communication status information indicates normal network communication function with the central coordinator, control an interference source to inject interference into the power input terminal of the power line carrier communication module according to the test configuration information. The frequency, current amplitude, and duration of the constant current mode are determined by the test configuration information. The constant current mode refers to the output mode in which the current amplitude remains constant. The data detection unit 303 is used to acquire the status detection information of multiple designated protection devices on the power line carrier communication module after the preset time has elapsed, and to acquire the communication detection data of the power line carrier communication module performing network communication operation with the central coordinator after power-on. The status detection information is used to indicate the physical status of multiple designated protection devices, and the communication detection data is used to indicate the success rate of network communication between the power line carrier communication module and the central coordinator. The result judgment unit 304 is used to output the qualification judgment result of the power line carrier communication module based on the status detection information and the communication detection data.

[0078] In one possible embodiment, the interference source includes a signal generator and a power amplifier; before controlling the interference source to inject an interference signal into the power input terminal of the power line carrier communication module according to the test configuration information, the interference injection unit 302 is further configured to: control the signal generator to output a sine wave signal, the frequency of the sine wave signal being a preset frequency determined according to the test configuration information, and the amplitude of the sine wave signal being a preset signal amplitude determined according to the test configuration information; input the sine wave signal into the power amplifier, control the power amplifier to select constant current mode output, and adjust the gain of the power amplifier so that the current value output by the power amplifier reaches the preset current amplitude determined according to the test configuration information.

[0079] In one possible embodiment, in controlling the interference source to inject interference signals into the power input terminal of the power line carrier communication module according to the test configuration information, the interference injection unit 302 is specifically used to: control the signal generator and the power amplifier to inject a sinusoidal interference signal between the high-voltage side L-phase terminal and N-phase terminal of the power line carrier communication module, and the current amplitude of the interference signal is constant at a preset current amplitude.

[0080] In one possible embodiment, before acquiring the status detection information of multiple designated protection devices on the power line carrier communication module, the data detection unit 303 is further configured to: control the signal generator and power amplifier to stop outputting at the end of a preset time period; control the power line carrier communication module to be powered off; control the power line carrier communication module to establish a connection with a single-phase meter, the connection including at least one of physical connection, electrical connection and communication connection; and power the power line carrier communication module back on through the single-phase meter.

[0081] In one possible embodiment, in acquiring communication detection data of the power line carrier communication module performing network communication operation with the central coordinator after power-on, the data detection unit 303 is specifically used to: control the power line carrier communication module to perform network operation with the central coordinator after power-on, and perform data acquisition operation after successful network formation; repeat the network formation operation and data acquisition operation a preset number of times, record whether each data acquisition operation is successful, and use the proportion of successful times out of the preset number of times as communication detection data.

[0082] In one possible embodiment, the status detection information includes apparent status detection data and surface temperature detection data. The apparent status detection data is used to indicate whether there is physical damage to multiple designated protective devices, and the surface temperature detection data is used to indicate the surface temperature values ​​of multiple designated protective devices. The pass / fail determination result includes a pass / fail determination result, the output conditions of which are: the apparent status detection data indicates that none of the multiple designated protective devices exhibit physical damage; the surface temperature detection data indicates that the surface temperatures of the multiple designated protective devices do not exceed a preset temperature threshold; and the communication detection data indicates that the network communication success rate between the power line carrier communication module and the central coordinator is greater than or equal to a preset success rate threshold. When all output conditions are met, a pass / fail determination result for the power line carrier communication module is output.

[0083] In one possible embodiment, the pass / fail determination result also includes a fail / fail determination result. The output conditions for the fail / fail determination result are as follows: if the apparent condition detection data indicates that any of the multiple specified protection devices has physical damage, then the power line carrier communication module is output as a fail / fail determination result, and a first rectification suggestion for instructing the optimization of module routing is output; if the surface temperature detection data indicates that the surface temperature of the multiple specified protection devices exceeds a preset temperature threshold, then the power line carrier communication module is output as a fail / fail determination result, and a second rectification suggestion for instructing the replacement of the protection device type is output; if the communication detection data indicates that the network communication success rate between the power line carrier communication module and the central coordinator does not reach a preset success rate threshold, then the power line carrier communication module is output as a fail / fail determination result, and a third rectification suggestion for instructing the optimization of module routing or adjusting the layout of protection devices is output.

[0084] When using integrated units, such as Figure 4 As shown, Figure 4 This is a functional unit block diagram of another high-frequency interference tolerance testing device for a power line carrier communication module provided in this application embodiment. Figure 4 The high-frequency interference tolerance testing device 30 for a power line carrier communication module includes a processing module 402 and a communication module 401. The processing module 402 controls and manages the operation of the high-frequency interference tolerance testing device 30, including, for example, the steps of the information acquisition unit 301, the interference injection unit 302, the data detection unit 303, and the result determination unit 304, and / or other processes for executing the techniques described herein. The communication module 401 supports interaction between the high-frequency interference tolerance testing device and other devices. Figure 4 As shown, the high-frequency interference tolerance test device for the power line carrier communication module may include a storage module 403, which is used to store the program code and data of the high-frequency interference tolerance test device for the power line carrier communication module.

[0085] The processing module 402 can be a processor or processing module, such as a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an ASIC, an FPGA, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. The processor can also be a combination that implements computational functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc. The communication module 401 can be a transceiver, RF circuitry, or a communication interface, etc. The storage module 403 can be a memory.

[0086] All relevant content in each scenario involved in the above method embodiments can be referenced from the functional descriptions of the corresponding functional modules, and will not be repeated here. The high-frequency interference tolerance testing device 30 for the above power line carrier communication module can perform the above... Figure 2 The method for testing the high-frequency interference tolerance of the power line carrier communication module is shown.

[0087] The above embodiments can be implemented, in whole or in part, by software, hardware, firmware, or any other combination thereof. When implemented using software, the above embodiments can be implemented, in whole or in part, as a computer program product. A computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, all or part of the processes or functions according to the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. Computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer instructions can be transmitted from one website, computer, electronic device, or data center to another website, computer, electronic device, or data center via wired or wireless means. A computer-readable storage medium can be any available medium that a computer can access or a data storage device such as an electronic device or data center that includes one or more sets of available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium. A semiconductor medium can be a solid-state drive.

[0088] Figure 5 This is a structural block diagram of an electronic device provided in an embodiment of this application. For example... Figure 5As shown, the electronic device 50 may include one or more of the following components: a processor 501 and a memory 502 coupled to the processor 501, wherein the memory 502 may store one or more computer programs 503, and the one or more computer programs 503 may be configured to implement the methods described in the above embodiments when executed by one or more processors 501. The electronic device 50 here is the host computer 110 in the above embodiments.

[0089] Processor 501 may include one or more processing cores. Processor 501 connects to various parts within the electronic device 50 using various interfaces and lines, and performs various functions and processes data of the electronic device 50 by running or executing instructions, programs, code sets, or instruction sets stored in memory 502, and by calling data stored in memory 502. Optionally, processor 501 may be implemented using at least one hardware form of Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), or Programmable Logic Array (PLA). Processor 501 may integrate one or more of the following: Central Processing Unit (CPU), Graphics Processing Unit (GPU), and modem. The CPU primarily handles the operating system, user interface, and applications; the GPU is responsible for rendering and drawing the displayed content; and the modem handles wireless communication. It is understood that the modem may also not be integrated into processor 501 and may be implemented separately using a communication chip.

[0090] The memory 502 may include random access memory (RAM) or read-only memory (ROM). The memory 502 can be used to store instructions, programs, code, code sets, or instruction sets. The memory 502 may include a program storage area and a data storage area. The program storage area may store instructions for implementing an operating system, instructions for implementing at least one function (such as touch functionality, sound playback functionality, image playback functionality, etc.), and instructions for implementing the various method embodiments described above. The data storage area may also store data created by the electronic device 50 during use.

[0091] It is understood that the electronic device 50 may include more or fewer structural elements than those shown in the above block diagram, and this is not limited thereto.

[0092] This application also provides a computer storage medium storing a computer program / instructions thereon, which, when executed by a processor, implements some or all of the steps of any of the methods described in the above method embodiments.

[0093] This application also provides a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps of any of the methods described in the above method embodiments.

[0094] It should be understood that in the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0095] In the several embodiments provided in this application, it should be understood that the disclosed methods, apparatuses, and systems can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for example, the division of units is merely a logical functional division, and there may be other division methods in actual implementation; for example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0096] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0097] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can be physically comprised separately, or two or more units can be integrated into one unit. The integrated unit described above can be implemented in hardware or in the form of hardware plus software functional units.

[0098] The integrated units implemented as software functional units described above can be stored in a computer-readable storage medium. These software functional units, stored in a storage medium, include several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute partial steps of the methods of the various embodiments of the present invention. The aforementioned storage medium includes: a USB flash drive, a portable hard drive, a magnetic disk, an optical disk, volatile memory, or non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of random access memory (RAM) are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous linked DRAM (SLDRAM), and direct rambus RAM (DR RAM), etc., which are various media capable of storing program code.

[0099] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can easily conceive of variations or substitutions without departing from the spirit and scope of the present invention, and various modifications and alterations can be made, including combinations of the different functions and implementation steps described above, as well as software and hardware implementation methods, all of which are within the protection scope of the present invention.

Claims

1. A method for testing the high-frequency interference tolerance of a power line carrier communication module, characterized in that, A host computer is used in an electricity consumption information collection system, the electricity consumption information collection system further includes a central coordinator, a single-phase electricity meter, and a power line carrier communication module, the power line carrier communication module being the local communication unit of the single-phase electricity meter; the method includes: Obtain test configuration information and operating status information for the power line carrier communication module, wherein the operating status information includes at least the power supply status information and network communication status information of the power line carrier communication module; If the power supply status information indicates weak power supply, and the network communication status information indicates that the network communication function with the central coordinator is normal, then according to the test configuration information, the interference source is controlled to inject an interference signal into the power input terminal of the power line carrier communication module. The frequency, current amplitude, and duration of the interference signal in constant current mode are determined by the test configuration information. The constant current mode refers to the output mode in which the current amplitude remains constant. After the preset time period ends, the status detection information of multiple designated protection devices on the power line carrier communication module is obtained, and the communication detection data of the power line carrier communication module performing network communication operation with the central coordinator after power-on is obtained. The status detection information is used to indicate the physical status of the multiple designated protection devices, and the communication detection data is used to indicate the success rate of network communication between the power line carrier communication module and the central coordinator. Based on the status detection information and the communication detection data, the pass / fail determination result of the power line carrier communication module is output.

2. The method according to claim 1, characterized in that, The interference source includes a signal generator and a power amplifier; Before controlling the interference source to inject interference signals into the power input terminal of the power line carrier communication module according to the test configuration information, the method further includes: The signal generator is controlled to output a sine wave signal, the frequency of which is a preset frequency determined according to the test configuration information, and the amplitude of which is a preset signal amplitude determined according to the test configuration information. The sinusoidal signal is input into the power amplifier, which is then controlled to select constant current mode for output. The gain of the power amplifier is adjusted so that the current value output by the power amplifier reaches the preset current amplitude determined according to the test configuration information.

3. The method according to claim 2, characterized in that, The step of controlling the interference source to inject interference signals into the power input terminal of the power line carrier communication module according to the test configuration information includes: The signal generator and the power amplifier are controlled to inject a sinusoidal interference signal between the L-phase terminal and the N-phase terminal on the high-voltage side of the power line carrier communication module, and the current amplitude of the interference signal is kept constant at the preset current amplitude.

4. The method according to claim 3, characterized in that, Before acquiring the status detection information of multiple designated protection devices on the power line carrier communication module, the method further includes: At the end of the preset duration, the signal generator and the power amplifier are controlled to stop outputting; and, Control the power line carrier communication module to power off; and, The system controls the establishment of a connection between the power line carrier communication module and the single-phase meter, the connection including at least one of physical connection, electrical connection and communication connection; The power line carrier communication module is repowered using the single-phase electricity meter.

5. The method according to claim 4, characterized in that, The acquisition of communication detection data of the power line carrier communication module performing network communication operations with the central coordinator after power-on includes: After the power line carrier communication module is powered on again, the system controls the power line carrier communication module to perform networking operations with the central coordinator, and performs data acquisition operations after the networking is successful. Repeat the networking operation and the data acquisition operation a preset number of times, record whether the data acquisition operation is successful each time, and use the proportion of the successful number of times out of the preset number of times as the communication detection data.

6. The method according to claims 1-5, characterized in that, The status detection information includes apparent status detection data and surface temperature detection data. The apparent status detection data is used to indicate whether there is physical damage to the plurality of designated protective devices, and the surface temperature detection data is used to indicate the surface temperature value of the plurality of designated protective devices. Furthermore, the conformity assessment result includes a conformity assessment result, and the output conditions for the conformity assessment result are: The apparent condition detection data indicates that none of the specified protective devices exhibit any physical damage; and... The surface temperature detection data indicates that the surface temperature of the plurality of designated protection devices does not exceed a preset temperature threshold. as well as, The communication detection data indicates that the success rate of the network communication between the power line carrier communication module and the central coordinator is greater than or equal to a preset success rate threshold. When all the output conditions are met, the power line carrier communication module is deemed qualified.

7. The method according to claim 6, characterized in that, The pass / fail judgment result also includes a fail / fail judgment result, and the output condition for the fail / fail judgment result is: If the apparent condition detection data indicates that any of the plurality of designated protection devices has physical damage, then the power line carrier communication module is deemed unqualified, and a first rectification suggestion for optimizing the module wiring is output. If the surface temperature detection data indicates that the surface temperature of the plurality of designated protection devices exceeds the preset temperature threshold, then the power line carrier communication module is deemed unqualified, and a second rectification suggestion is output to indicate the replacement of the protection device type. If the communication detection data indicates that the network communication success rate between the power line carrier communication module and the central coordinator has not reached the preset success rate threshold, then the power line carrier communication module is deemed unqualified, and a third rectification suggestion is output to indicate the optimization of module routing or adjustment of protection device layout.

8. A high-frequency interference tolerance testing device for a power line carrier communication module, characterized in that, A host computer is used in an electricity consumption information collection system. The electricity consumption information collection system also includes a central coordinator, a single-phase electricity meter, and a power line carrier communication module, wherein the power line carrier communication module is the local communication unit of the single-phase electricity meter. The device includes: The information acquisition unit is used to acquire test configuration information and working status information for the power line carrier communication module. The working status information includes at least the power supply status information and network communication status information of the power line carrier communication module. An interference injection unit is used to control an interference source to inject an interference signal into the power input terminal of the power line carrier communication module according to the test configuration information if the power supply status information indicates weak power supply and the network communication status information indicates normal network communication function with the central coordinator. The frequency, current amplitude, and duration of the interference signal in constant current mode are determined by the test configuration information. The constant current mode refers to an output mode in which the current amplitude remains constant. The data detection unit is used to acquire status detection information of multiple designated protection devices on the power line carrier communication module after the preset time period ends, and to acquire communication detection data of the power line carrier communication module performing network communication operation with the central coordinator after power-on. The status detection information is used to indicate the physical status of the multiple designated protection devices, and the communication detection data is used to indicate the success rate of network communication between the power line carrier communication module and the central coordinator. The result determination unit is used to output the qualification determination result of the power line carrier communication module based on the status detection information and the communication detection data.

9. An electronic device, characterized in that, The method includes a processor, a memory, a communication interface, and one or more programs, said programs being stored in the memory and configured to be executed by the processor, said programs including instructions for performing the steps of the method as described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, A computer program for storing electronic data interchange is provided, wherein the computer program causes a computer to perform the method as described in any one of claims 1-7.

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