Noise testing methods, systems and electronic equipment

Abstract

This application provides a noise testing method, system, and electronic device, relating to the field of power communication. The method includes: acquiring noise testing requirements and noise data to be tested, comprising broadband noise data and narrowband noise data; determining broadband and narrowband noise coupling characteristics matching the noise testing requirements based on the configuration of various mode structures in a multi-mode noise database and their mappings, the broadband and narrowband noise coupling characteristics including noise coupling operation modes, noise coupling data structures, and noise coupling condition parameters; coupling the noise data to be tested based on the broadband and narrowband noise coupling characteristics to generate broadband and narrowband coupled noise data; determining the network noise topology corresponding to the broadband and narrowband coupled noise data, enabling testing and analysis of the broadband and narrowband coupled noise data based on the network noise topology. This application solves the problem of low accuracy in existing broadband and narrowband coupled noise testing technologies.

Description

Technical Field

[0001] This application relates to the field of power communication technology, and more specifically, to a noise testing method, system, and electronic device. Background Technology

[0002] With the construction of new power systems, distributed photovoltaics, energy storage, and charging piles are being connected to low-voltage distribution networks on a large scale, introducing noise signals generated by various power electronic devices. In order to accurately estimate the power line carrier communication environment, it is necessary to generate noise topology information through noise testing technology and analyze the impact of broadband noise and narrowband noise coupling on power line communication performance.

[0003] Traditional wide and narrow band coupled noise testing devices and methods directly use the collected noise information for power line performance analysis, ignoring the impact of factors such as different operating modes during noise injection processing on performance analysis, which greatly affects the accuracy of noise test results. Summary of the Invention

[0004] This application provides a noise testing method, system, and electronic device to address the problem of low accuracy in existing wide-band and narrow-band coupled noise testing techniques.

[0005] According to one aspect of the embodiments of this application, a noise testing method is provided, comprising:

[0006] Obtain noise testing requirements and test noise data, including broadband noise data and narrowband noise data;

[0007] Based on the configuration of each mode structure and the mapping between them in the multi-mode noise database, the wide and narrow band noise coupling characteristics that match the noise testing requirements are determined. The wide and narrow band noise coupling characteristics include noise coupling operation mode, noise coupling data structure and noise coupling condition parameters.

[0008] Based on the wide and narrow band noise coupling characteristics, the noise data to be tested is coupled to generate wide and narrow band coupled noise data;

[0009] Determine the network noise topology corresponding to the wide and narrow band coupled noise data, and then test and analyze the wide and narrow band coupled noise data based on the network noise topology.

[0010] In one possible implementation, determining the wideband and narrowband noise coupling characteristics that match the noise testing requirements based on the mode structures configured in the multi-mode noise database and their mappings includes:

[0011] Based on the comparison between the external mode in the multi-mode noise database and the broadband noise data and the narrowband noise data, a noise coupling operation mode that matches the noise test requirements is determined. The external mode is used to characterize the coupling operation mode of storing broadband noise and narrowband noise.

[0012] Based on the mapping between the external modes and conceptual modes in the multi-mode noise database, the noise coupling data structure for the noise testing requirements under different noise coupling operation modes is determined. The conceptual mode is used to characterize the data structure for storing broadband noise and narrowband noise.

[0013] Based on the mapping between the conceptual patterns and internal patterns in the multi-mode noise database, noise coupling condition parameters for the noise testing requirements under different noise coupling data structures are determined. The internal patterns are used to characterize the noise characteristic parameters of stored broadband noise and narrowband noise.

[0014] In one possible implementation, determining the network noise topology corresponding to the wideband and narrowband coupled noise data, and then testing and analyzing the wideband and narrowband coupled noise data based on the network noise topology, includes:

[0015] Based on a network noise knowledge graph that indicates historical noise data and the interference of noise on power line communication, the network noise topology corresponding to the broadband and narrowband coupled noise data is determined.

[0016] Based on the correspondence between the device under test and the noise data to be tested in the network noise topology, a noise test network is formed, and noise testing is performed on the wide-band and narrow-band coupled noise data based on the noise test network.

[0017] Based on the noise test results, the power line communication performance indicators after injecting the wide and narrow band coupled noise data are analyzed.

[0018] In one possible implementation, the method further includes:

[0019] The network noise knowledge graph is updated using the wide and narrow band coupled noise data, the noise test results, and the analyzed power line communication performance indicators.

[0020] According to another aspect of the embodiments of this application, a noise testing system is provided, comprising:

[0021] The control module is used to acquire noise test requirements and test noise data, including broadband noise data and narrowband noise data.

[0022] A multi-mode noise database, connected to the control module, is used to determine the wide and narrow band noise coupling characteristics that match the noise testing requirements based on the configured mode structures and their mappings. The wide and narrow band noise coupling characteristics include noise coupling operation modes, noise coupling data structures, and noise coupling condition parameters.

[0023] A wide-narrow band coupled noise injection module is connected to the multi-mode noise database and is used to couple the noise data to be tested based on the wide-narrow band noise coupling characteristics to generate wide-narrow band coupled noise data.

[0024] The noise test and analysis module is connected to the wide and narrow band coupled noise injection module. It is used to determine the network noise topology corresponding to the wide and narrow band coupled noise data, so as to test and analyze the wide and narrow band coupled noise data based on the network noise topology.

[0025] In one possible implementation, the multimodal noise database is configured with an external mode, a conceptual mode, and an internal mode;

[0026] The external mode is used to characterize the coupled operation mode of storing broadband noise and narrowband noise, the conceptual mode is used to characterize the data structure of storing broadband noise and narrowband noise, and the internal mode is used to characterize the noise characteristic parameters of storing broadband noise and narrowband noise.

[0027] The multimode noise database is also used to compare the external mode with the broadband noise data and the narrowband noise data to determine the noise coupling operation mode that matches the noise testing requirements.

[0028] Based on the mapping between the external mode and the conceptual mode, the noise coupling data structure for the noise testing requirements under different noise coupling operation modes is determined; and,

[0029] Based on the mapping between the conceptual pattern and the internal pattern, noise coupling condition parameters for the noise testing requirements are determined under different noise coupling data structures.

[0030] In one possible implementation, the noise test analysis module includes:

[0031] A network noise knowledge graph used to indicate historical noise data and the extent of noise interference with power line communication;

[0032] A network noise topology generation unit, connected to the network noise knowledge graph and the wide-narrowband coupled noise injection module, is used to determine the network noise topology corresponding to the wide-narrowband coupled noise data based on the network noise knowledge graph.

[0033] The noise testing unit is connected to the network noise topology generation unit and the wide-narrow band coupled noise injection module. It is used to form a noise testing network based on the correspondence between the device under test and the noise data under test in the network noise topology, so that noise testing is performed on the wide-narrow band coupled noise data based on the noise testing network.

[0034] A noise analysis unit, connected to the noise testing unit, is used to analyze the power line communication performance indicators after injecting the wide and narrow band coupled noise data based on the noise test results.

[0035] In one possible implementation, the network noise knowledge graph, connected to the noise testing unit and the noise analysis unit, is further used to update the network noise knowledge graph using the wideband and narrowband coupled noise data, the noise test results, and the analyzed power line communication performance indicators.

[0036] In one possible implementation, the noise testing system further includes a device-under-test (DUT) connection module;

[0037] The device under test (DUT) connection module is connected to the device under test and is used to acquire the noise test requirements and the noise to be tested sent by the device under test. The noise to be tested includes broadband noise and narrowband noise to be tested.

[0038] The control module is connected to the device under test connection module and is used to extract signal features from the noise to be tested to obtain the noise data to be tested.

[0039] According to another aspect of the present application, an electronic device is provided, including a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement the steps of the noise testing method described in the above embodiments.

[0040] The beneficial effects of the technical solutions provided in this application are:

[0041] The noise testing method provided in this application obtains noise testing requirements and noise data to be tested, including broadband and narrowband noise data. Based on the configuration of various mode structures in a multi-mode noise database and their mappings, it determines broadband and narrowband noise coupling characteristics that match the noise testing requirements. The broadband and narrowband noise coupling characteristics include noise coupling operation modes, noise coupling data structures, and noise coupling condition parameters. Based on the broadband and narrowband noise coupling characteristics, the noise data to be tested is coupled to generate broadband and narrowband coupled noise data. The network noise topology corresponding to the broadband and narrowband coupled noise data is determined, and the broadband and narrowband coupled noise data is tested and analyzed based on the network noise topology. In this way, the influence of different noise coupling operation modes, noise coupling data structures, and noise coupling condition parameters is considered during noise coupling, which improves the accuracy of the injected broadband and narrowband coupled noise characteristics. Furthermore, considering the influence of the above factors on noise performance testing and analysis, the accuracy of the noise testing results is improved, thereby solving the problem of low accuracy in existing broadband and narrowband coupled noise testing technologies. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments of this application will be briefly introduced below.

[0043] Figure 1 A flowchart illustrating a noise testing method provided in an embodiment of this application;

[0044] Figure 2 This is a schematic diagram of the structure of a noise testing system provided in an embodiment of this application;

[0045] Figure 3 A schematic diagram of the structure of a noise testing system provided in an exemplary embodiment of this application;

[0046] Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0047] The embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the embodiments described below with reference to the accompanying drawings are exemplary descriptions for explaining the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions of the embodiments of this application.

[0048] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the terms “comprising” and “including” as used in embodiments of this application mean that the corresponding feature can be implemented as the presented feature, information, data, step, operation, element, and / or component, but do not exclude implementation as other features, information, data, step, operation, element, component, and / or combinations thereof supported by the art. It should be understood that when we say that an element is “connected” or “coupled” to another element, the one element can be directly connected or coupled to the other element, or it can mean that the one element and the other element establish a connection relationship through an intermediate element. Furthermore, “connected” or “coupled” as used herein can include wireless connection or wireless coupling. The term “and / or” as used herein indicates at least one of the items defined by the term; for example, “A and / or B” can be implemented as “A,” or as “B,” or as “A and B.”

[0049] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0050] Figure 1 This is a flowchart illustrating a noise testing method provided in an embodiment of this application. The noise testing method includes steps S101 to S104.

[0051] S101. Obtain the noise test requirements and the noise data to be tested, including broadband noise data and narrowband noise data.

[0052] In this application, the noise test requirements and the noise to be tested transmitted by the device under test are obtained. The noise to be tested includes broadband noise and narrowband noise, and the device under test can be a power line communication device under test. Subsequently, signal feature extraction or signal analysis processing is performed on the broadband and narrowband noise to obtain corresponding noise data. This noise data includes time-domain sequence features, broadband and narrowband spectral features, energy features, power features, noise type, noise data structure, noise data operation mode, injection time, injection location, and other feature information. Specifically, Fourier transform is performed on the broadband and narrowband noise to be tested for frequency domain analysis to obtain broadband and narrowband spectral features, and noise data operation mode is obtained through data query, data operation, data definition, and data control operations. Therefore, this application, by extracting signal features from the test signal, facilitates the extraction of key information from the noise signal under test and the extraction of relationships between different features in the noise, thereby facilitating subsequent noise coupling processing.

[0053] S102. Based on the configuration of each mode structure and the mapping between them in the multi-mode noise database, determine the wide and narrow band noise coupling characteristics that match the noise test requirements. The wide and narrow band noise coupling characteristics include noise coupling operation mode, noise coupling data structure and noise coupling condition parameters.

[0054] S103. Based on the wide and narrow band noise coupling characteristics, the noise data to be tested is coupled to generate wide and narrow band coupled noise data.

[0055] It should be noted that the multi-mode noise database stores data resources related to the coupling operation modes, coupling data structures, and characteristic parameters of broadband and narrowband noise. The multi-mode noise database is divided into three levels: user-level, conceptual-level, and physical-level. Each level has its own logical description of the data, i.e., a schema structure, corresponding to the external schema, conceptual schema, and internal schema. In this application, the external schema describes the coupling operation modes of broadband and narrowband noise, the conceptual schema describes the data structures of broadband and narrowband noise, and the internal schema describes the noise characteristic parameters of broadband and narrowband noise. Therefore, this application, through the external schema, conceptual schema, and internal schema and their mapping relationships, considers the correlation between data, generating the broadband and narrowband noise coupling characteristics corresponding to the coupling of broadband and narrowband noise. It can consider the influence of noise coupling operation modes, noise coupling data structures, and noise coupling condition parameters on noise coupling, thus improving the accuracy of the synthesized noise data.

[0056] In some embodiments, determining the wideband and narrowband noise coupling characteristics that match the noise testing requirements based on the mode structures configured in the multimode noise database and the mappings between them includes:

[0057] Based on the comparison between the external mode in the multi-mode noise database and the broadband noise data and the narrowband noise data, a noise coupling operation mode that matches the noise test requirements is determined. The external mode is used to characterize the coupling operation mode of storing broadband noise and narrowband noise.

[0058] Based on the mapping between the external modes and conceptual modes in the multi-mode noise database, the noise coupling data structure for the noise testing requirements under different noise coupling operation modes is determined. The conceptual mode is used to characterize the data structure for storing broadband noise and narrowband noise.

[0059] Based on the mapping between the conceptual patterns and internal patterns in the multi-mode noise database, noise coupling condition parameters for the noise testing requirements under different noise coupling data structures are determined. The internal patterns are used to characterize the noise characteristic parameters of stored broadband noise and narrowband noise.

[0060] In this embodiment, for the external mode, each noise data corresponds to a wide-band and narrow-band noise coupling operation mode. Then, by comparing the similarity between the wide-band and narrow-band noise data in the noise data to be tested and the coupling operation modes stored in the external mode, the coupling operation mode of the noise data to be tested is determined, thereby selecting a noise coupling operation mode that matches the noise testing requirements. Secondly, regarding the mapping between the external mode and the conceptual mode, and combined with the noise testing requirements, the noise coupling data structure after wide-band and narrow-band noise coupling under different coupling operation modes is determined. Furthermore, regarding the mapping between the conceptual mode and the internal mode, and combined with the noise testing requirements, noise coupling condition parameters required for wide-band and narrow-band noise coupling under different noise coupling data structures are generated, such as spectral range, frequency point, amplitude, etc. Further, based on the noise coupling operation mode, noise coupling data structure, and noise coupling condition parameters, wide-band and narrow-band noise data are noise-coupled to obtain the corresponding wide-band and narrow-band coupled noise data. Therefore, this embodiment maps the noise coupling operation mode, noise coupling data structure, and noise coupling condition parameters through the external mode, conceptual mode, and internal mode, in order to perform noise coupling between broadband noise data and narrowband noise data. This ensures that the obtained broadband and narrowband coupled noise data takes into account the influence of factors such as coupling operation mode, data structure, and coupling condition parameters, and has higher accuracy.

[0061] S104. Determine the network noise topology corresponding to the wide and narrow band coupled noise data, and perform testing and analysis on the wide and narrow band coupled noise data based on the network noise topology.

[0062] The noise testing method provided in this embodiment obtains noise testing requirements and test noise data containing broadband and narrowband noise data. Based on the configuration of various mode structures in a multi-mode noise database and their mappings, it determines broadband and narrowband noise coupling characteristics that match the noise testing requirements. These broadband and narrowband noise coupling characteristics include noise coupling operation modes, noise coupling data structures, and noise coupling condition parameters. The test noise data is coupled based on these broadband and narrowband noise coupling characteristics to generate broadband and narrowband coupled noise data. The network noise topology corresponding to the broadband and narrowband coupled noise data is determined, and the broadband and narrowband coupled noise data is tested and analyzed based on the network noise topology. This method considers the influence of different noise coupling operation modes, noise coupling data structures, and noise coupling condition parameters during noise coupling, improving the accuracy of the injected broadband and narrowband coupled noise characteristics. Furthermore, considering the influence of these factors on noise performance testing and analysis, it improves the accuracy of the noise testing results, thereby solving the problem of low accuracy in existing broadband and narrowband coupled noise testing techniques.

[0063] In some embodiments, determining the network noise topology corresponding to the wideband and narrowband coupled noise data, and then testing and analyzing the wideband and narrowband coupled noise data based on the network noise topology, includes:

[0064] Based on a network noise knowledge graph that indicates historical noise data and the interference of noise on power line communication, the network noise topology corresponding to the broadband and narrowband coupled noise data is determined.

[0065] Based on the correspondence between the device under test and the noise data to be tested in the network noise topology, a noise test network is formed, and noise testing is performed on the wide-band and narrow-band coupled noise data based on the noise test network.

[0066] Based on the noise test results, the power line communication performance indicators after injecting the wide and narrow band coupled noise data are analyzed.

[0067] In this embodiment, a network noise knowledge graph is constructed based on historical noise data and the interference of noise on power line communication. Then, the network noise knowledge graph is used to generate a network noise topology corresponding to the current broadband and narrowband coupled noise data. Based on the corresponding relationship of the device under test in the network noise topology, a noise test network under broadband and narrowband coupled noise injection is formed to simulate noise testing and obtain noise test results, such as communication frequency, signal strength, and data packet integrity during data transmission and reception. Furthermore, the noise test results are used to analyze power line communication performance indicators, such as signal-to-interference-plus-noise ratio, bit error rate, packet loss rate, broadband and narrowband frequency attenuation, and transmission frequency variation. Therefore, this application improves the accuracy of the generated network noise topology through the network noise knowledge graph, further enhancing the accuracy of noise testing and analysis.

[0068] In some embodiments, the method further includes:

[0069] The network noise knowledge graph is updated using the wide and narrow band coupled noise data, the noise test results, and the analyzed power line communication performance indicators.

[0070] In this embodiment, the wide and narrow band coupled noise data, along with their corresponding noise test results and performance index analysis results, are used to update the current network noise knowledge graph. This expands the content of the network noise knowledge graph, making the subsequently generated network noise topology more accurate and improving the accuracy of power line communication performance test results under noise injection.

[0071] Figure 2 This is a schematic diagram of a noise testing system provided in an embodiment of this application. The noise testing system 2 includes:

[0072] Control module 21 is used to acquire noise test requirements and test noise data including broadband noise data and narrowband noise data;

[0073] A multi-mode noise database 22, connected to the control module 21, is used to determine the wide and narrow band noise coupling characteristics that match the noise test requirements based on the configured mode structures and their mappings. The wide and narrow band noise coupling characteristics include noise coupling operation modes, noise coupling data structures, and noise coupling condition parameters.

[0074] The wide and narrow band coupled noise injection module 23 is connected to the multimode noise database 22 and is used to couple the noise data to be tested based on the wide and narrow band noise coupling characteristics to generate wide and narrow band coupled noise data.

[0075] The noise test and analysis module 24 is connected to the wide and narrow band coupled noise injection module 23 and is used to determine the network noise topology corresponding to the wide and narrow band coupled noise data, so as to test and analyze the wide and narrow band coupled noise data based on the network noise topology.

[0076] The noise testing system provided in this application acquires noise testing requirements and test noise data containing broadband and narrowband noise data through a control module. A multi-mode noise database, based on its configured mode structures and mappings, determines broadband and narrowband noise coupling characteristics matching the noise testing requirements. These broadband and narrowband noise coupling characteristics include noise coupling operation modes, noise coupling data structures, and noise coupling condition parameters. A broadband and narrowband coupled noise injection module couples the test noise data based on these characteristics to generate broadband and narrowband coupled noise data. A noise testing and analysis module determines the network noise topology corresponding to the broadband and narrowband coupled noise data, enabling testing and analysis of the data based on this topology. This approach considers the influence of different noise coupling operation modes, noise coupling data structures, and noise coupling condition parameters during noise coupling, improving the accuracy of the injected broadband and narrowband coupled noise characteristics. Furthermore, by considering the impact of these factors on noise performance testing and analysis, the accuracy of the noise testing results is improved, thus solving the problem of low accuracy in existing broadband and narrowband coupled noise testing technologies.

[0077] In some embodiments, Figure 3 This is a schematic diagram of a noise testing system provided in an exemplary embodiment of the present application. The noise testing system 2 further includes a device under test connection module 25.

[0078] The device under test connection module 25 is connected to the device under test 3 and is used to acquire the noise test requirements and the noise to be tested sent by the device under test. The noise to be tested includes broadband noise and narrowband noise to be tested.

[0079] The control module 21 is connected to the device under test connection module 25 and is used to extract signal features from the noise to be tested to obtain the noise data to be tested.

[0080] In some embodiments, the multimode noise database 22 is configured with an external mode, a conceptual mode, and an internal mode;

[0081] The outer mode is used to store the coupled operation mode of broadband noise and narrowband noise, the conceptual mode is used to store the data structure of broadband noise and narrowband noise, and the inner mode is used to store the noise characteristic parameters of broadband noise and narrowband noise.

[0082] The multimode noise database is also used to compare the external mode with the broadband noise data and the narrowband noise data to determine the noise coupling operation mode that matches the noise testing requirements.

[0083] Based on the mapping between the external mode and the conceptual mode, the noise coupling data structure for the noise testing requirements under different noise coupling operation modes is determined; and,

[0084] Based on the mapping between the conceptual pattern and the internal pattern, noise coupling condition parameters for the noise testing requirements are determined under different noise coupling data structures.

[0085] In some embodiments, such as Figure 3 As shown, the noise test and analysis module 24 includes:

[0086] Network noise knowledge graph 241 is used to indicate historical noise data and the interference of noise on power line communication;

[0087] The network noise topology generation unit 242 is connected to the network noise knowledge graph 241 and the wide and narrow band coupled noise injection module 23, and is used to determine the network noise topology corresponding to the wide and narrow band coupled noise data based on the network noise knowledge graph.

[0088] The noise testing unit 243 is connected to the network noise topology generation unit 242 and the wide and narrow band coupled noise injection module 23. It is used to form a noise testing network based on the correspondence between the device under test 3 and the noise data under test in the network noise topology, so that noise testing is performed on the wide and narrow band coupled noise data based on the noise testing network.

[0089] The noise analysis unit 244 is connected to the noise test unit 243 and is used to analyze the power line communication performance indicators after injecting the wide and narrow band coupled noise data based on the noise test results.

[0090] In some embodiments, the network noise knowledge graph 241, connected to the noise testing unit 243 and the noise analysis unit 244, is further used to update the network noise knowledge graph using the wide and narrow band coupled noise data, the noise test results, and the analyzed power line communication performance indicators.

[0091] See also in this application. Figure 3 The noise testing system 2 also includes a communication module 26, which communicates with the upper-level server to receive broadband and narrowband noise signals and upload noise test results and noise analysis results. Additionally, the noise testing system 2 includes a power supply module 27, which supplies power to all modules in the noise testing system.

[0092] The system of this application embodiment can execute the method provided in this application embodiment. The implementation principle is similar. The actions performed by each module in the system of each embodiment of this application correspond to the steps in the method of each embodiment of this application. For detailed functional descriptions of each module of the system, please refer to the descriptions in the corresponding methods shown above, which will not be repeated here.

[0093] This application provides an electronic device including a memory, a processor, and a computer program stored in the memory. The processor executes the computer program to implement the steps of a noise testing method. Compared with related technologies, this method can achieve the following: it considers the influence of different noise coupling operation modes, noise coupling data structures, and noise coupling condition parameters during noise coupling, thereby improving the accuracy of the injected wide and narrow band coupled noise characteristics. Furthermore, considering the influence of the above factors on noise performance testing and analysis, it improves the accuracy of the noise test results, thus solving the problem of low accuracy in existing wide and narrow band coupled noise testing technologies.

[0094] In one alternative embodiment, an electronic device is provided, such as Figure 4 As shown, Figure 4 The illustrated electronic device 4000 includes a processor 4001 and a memory 4003. The processor 4001 and the memory 4003 are connected, for example, via a bus 4002. Optionally, the electronic device 4000 may further include a transceiver 4004, which can be used for data interaction between the electronic device and other electronic devices, such as sending and / or receiving data. It should be noted that in practical applications, the transceiver 4004 is not limited to one type, and the structure of the electronic device 4000 does not constitute a limitation on the embodiments of this application.

[0095] Processor 4001 may be a CPU (Central Processing Unit), a general-purpose processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), 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. Processor 4001 may also be a combination that implements computational functions, such as including one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc.

[0096] Bus 4002 may include a pathway for transmitting information between the aforementioned components. Bus 4002 may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. Bus 4002 can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 4 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0097] The memory 4003 may be ROM (Read Only Memory) or other types of static storage devices capable of storing static information and instructions, RAM (Random Access Memory) or other types of dynamic storage devices capable of storing information and instructions, or EEPROM (Electrically Erasable Programmable Read Only Memory), CD-ROM (Compact Disc Read Only Memory) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), magnetic disk storage media, other magnetic storage devices, or any other medium capable of carrying or storing computer programs and capable of being read by a computer, without limitation herein.

[0098] The memory 4003 stores computer programs that execute embodiments of this application, and its execution is controlled by the processor 4001. The processor 4001 executes the computer programs stored in the memory 4003 to implement the steps shown in the foregoing method embodiments.

[0099] The above description is only an optional implementation method for some implementation scenarios of this application. It should be noted that for those skilled in the art, other similar implementation methods based on the technical concept of this application without departing from the technical concept of this application also fall within the protection scope of the embodiments of this application.

Claims

1. A noise testing method, characterized by, The method comprises the following steps: acquiring noise test requirements and to-be-tested noise data containing wideband noise data and narrowband noise data; determining wide-narrow band noise coupling characteristics matched with the noise test requirements based on mode structures configured in a multimode noise database and mappings between the mode structures, wherein the wide-narrow band noise coupling characteristics comprise noise coupling operation modes, noise coupling data structures and noise coupling condition parameters; coupling the to-be-tested noise data based on the wide-narrow band noise coupling characteristics to generate wide-narrow band coupled noise data; determining a network noise topology corresponding to the wide-narrow band coupled noise data, and testing and analyzing the wide-narrow band coupled noise data based on the network noise topology.

2. The noise testing method of claim 1, wherein, The step of determining the wide-narrow band noise coupling characteristics matched with the noise test requirements based on the mode structures configured in the multimode noise database and the mappings between the mode structures comprises the following steps: comparing an external mode in the multimode noise database with the wideband noise data and the narrowband noise data to determine noise coupling operation modes corresponding to the noise test requirements, wherein the external mode is used to represent coupling operation modes of wideband noise and narrowband noise; determining noise coupling data structures for different noise coupling operation modes corresponding to the noise test requirements based on mappings between the external mode and a concept mode in the multimode noise database, wherein the concept mode is used to represent data structures of wideband noise and narrowband noise; determining noise coupling condition parameters for different noise coupling data structures corresponding to the noise test requirements based on mappings between the concept mode and an internal mode in the multimode noise database, wherein the internal mode is used to represent noise characteristic parameters of wideband noise and narrowband noise.

3. The noise testing method of claim 1, wherein, The step of determining the network noise topology corresponding to the wide-narrow band coupled noise data comprises the following steps: determining the network noise topology corresponding to the wide-narrow band coupled noise data based on a network noise knowledge graph used to indicate interference of historical noise data and noise on power line communication; forming a noise test network for a corresponding relationship of to-be-tested equipment corresponding to the to-be-tested noise data in the network noise topology, and testing the wide-narrow band coupled noise data based on the noise test network; analyzing power line communication performance indexes after the wide-narrow band coupled noise data is injected based on a noise test result.

4. The noise testing method of claim 3, wherein, The method further comprises the following steps: updating the network noise knowledge graph by using the wide-narrow band coupled noise data, the noise test result and the analyzed power line communication performance indexes.

5. A noise testing system characterized by, The system comprises the following components: a control module configured to acquire noise test requirements and to-be-tested noise data containing wideband noise data and narrowband noise data; a multimode noise database connected to the control module and configured to determine wide-narrow band noise coupling characteristics matched with the noise test requirements based on mode structures configured in the multimode noise database and mappings between the mode structures, wherein the wide-narrow band noise coupling characteristics comprise noise coupling operation modes, noise coupling data structures and noise coupling condition parameters. The wide-narrow band coupling noise injection module is connected to the multi-mode noise database and is configured to couple the to-be-tested noise data based on the wide-narrow band noise coupling characteristics to generate wide-narrow band coupling noise data. The noise test analysis module is connected to the wide-narrow band coupling noise injection module and is configured to determine a network noise topology corresponding to the wide-narrow band coupling noise data and to test and analyze the wide-narrow band coupling noise data based on the network noise topology.

6. The noise testing system of claim 5, wherein, The multi-mode noise database is configured with an external schema, a conceptual schema and an internal schema. The external schema is used to represent a coupling operation mode of the wide band noise and the narrow band noise, the conceptual schema is used to represent a data structure of the wide band noise and the narrow band noise, and the internal schema is used to represent noise characteristic parameters of the wide band noise and the narrow band noise. The multi-mode noise database is further configured to compare the external schema with the wide band noise data and the narrow band noise data to determine a noise coupling operation mode that meets the noise test requirement. Based on a mapping between the external schema and the conceptual schema, noise coupling data structures for the noise test requirement under different noise coupling operation modes are determined. Based on a mapping between the conceptual schema and the internal schema, noise coupling condition parameters for the noise test requirement under different noise coupling data structures are determined.

7. The noise testing system of claim 5, wherein, The noise test analysis module includes: A network noise knowledge graph is used to indicate historical noise data and interference of noise on power line communication. A network noise topology generation unit is connected to the network noise knowledge graph and the wide-narrow band coupling noise injection module and is configured to determine a network noise topology corresponding to the wide-narrow band coupling noise data based on the network noise knowledge graph. A noise test unit is connected to the network noise topology generation unit and the wide-narrow band coupling noise injection module and is configured to form a noise test network for a corresponding relationship of a to-be-tested device corresponding to the to-be-tested noise data in the network noise topology and to perform noise test on the wide-narrow band coupling noise data based on the noise test network. A noise analysis unit is connected to the noise test unit and is configured to analyze a power line communication performance index after the wide-narrow band coupling noise data is injected based on a noise test result.

8. The noise testing system of claim 7, wherein, The network noise knowledge graph is connected to the noise test unit and the noise analysis unit and is further configured to update the network noise knowledge graph by using the wide-narrow band coupling noise data, the noise test result and the analyzed power line communication performance index.

9. The noise testing system of claim 5, wherein, The noise test system further includes a device under test connection module. The device under test connection module is connected to a to-be-tested device and is configured to acquire a noise test requirement and to-be-tested noise sent by the to-be-tested device, wherein the to-be-tested noise includes to-be-tested wide band noise and to-be-tested narrow band noise. The control module is connected to the device under test connection module and is configured to perform signal feature extraction on the to-be-tested noise to obtain the to-be-tested noise data.

10. An electronic device comprising a memory, a processor, and a computer program stored on the memory, wherein the computer program, when executed by the processor, is arranged to perform the method of any one of claims 1 to 8. The processor executes the computer program to implement the steps of the noise test method of any one of claims 1-4.

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