An electromagnetic interference analysis method and system for digital office equipment

Abstract

This application relates to the field of electromagnetic interference technology, and particularly to a method and system for analyzing electromagnetic interference of digital office equipment. The method includes: obtaining device operation information; analyzing the device operation information to determine the operation mode; determining the operation result according to the operation mode; obtaining operation electromagnetic data; analyzing the operation electromagnetic data to determine the spectrum change; determining the change time according to the spectrum change, and analyzing the operation result according to the change time to determine whether there is electromagnetic interference. By collecting the real-time operation status of the device under test, it is easier to detect anomalies by comparing the expected results with the actual results under different operation modes, providing a basis for judging whether there is interference. By operating such as real-time monitoring of the electromagnetic signals transmitted and received by the device under test through an electromagnetic monitoring device, it is ultimately judged whether the device is affected by electromagnetic interference, providing a decision-making basis for taking measures to mitigate or eliminate the interference.

Description

Technical Field

[0001] This application relates to the field of electromagnetic interference technology, and particularly to a method and system for analyzing electromagnetic interference of digital office equipment. Background Art

[0002] With the wide application of these devices, the problem of electromagnetic interference (EMI) generated by them has become increasingly prominent, posing a potential impact on the normal operation of surrounding devices and system stability.

[0003] Electromagnetic interference may not only affect the functional performance of devices, but also lead to system failures, data loss, and even affect the security of devices. Therefore, how to effectively analyze and identify electromagnetic interference problems of digital office equipment has become one of the key technical challenges in the design, production, and use of electronic devices. Summary of the Invention

[0004] This application provides a method and system for analyzing electromagnetic interference of digital office equipment to solve the above problems.

[0005] In a first aspect, this application provides a method for analyzing electromagnetic interference of digital office equipment, the method including:

[0006] Obtain device operation information; analyze the device operation information to determine the operation mode; determine the operation result according to the operation mode;

[0007] Obtain operation electromagnetic data; analyze the operation electromagnetic data to determine the spectrum change;

[0008] Determine the change time according to the spectrum change, and analyze the operation result according to the change time to determine whether there is electromagnetic interference.

[0009] Through this solution, the real-time operation status of the device is collected, providing basic data for subsequent analysis and helping to identify the behavior of the device under normal operating conditions. Identifying the current working state of the device makes the interference analysis more targeted and accurate. By comparing the expected result and the actual result under different operation modes, it is easier to discover anomalies and provide a basis for judging whether there is interference. Real-time monitoring of the electromagnetic signals transmitted and received by the device provides raw data for spectrum analysis. Through spectrum analysis, abnormal changes in the electromagnetic signals can be identified. Determining the specific time point when the interference occurs helps to trace the interference source and interference events, providing a time reference for subsequent interference analysis. By analyzing the operation result at a specific time point, it can be judged whether the interference affects the normal function of the device and the degree of influence. Based on the above analysis, it is finally judged whether the device is affected by electromagnetic interference, providing a decision basis for taking measures to mitigate or eliminate the interference.

[0010] Optionally, analyzing the operating electromagnetic data to determine the spectrum change includes:

[0011] Analyze the operating electromagnetic data to determine the real-time ambient electromagnetic field;

[0012] Perform spectrum separation on the real-time ambient electromagnetic field to obtain the ambient spectrum change;

[0013] Obtain the established electromagnetic field of the device;

[0014] Based on the ambient spectrum change, determine the real-time impact of the environment on the device during operation;

[0015] Based on the real-time operating impact and the established electromagnetic field of the device, determine the real-time device electromagnetic field during operation; and perform spectrum separation on the real-time device electromagnetic field to obtain the device spectrum change;

[0016] Determine the spectrum change by using the ambient spectrum change and the device spectrum change.

[0017] Through this solution, the electromagnetic background of the environment where the device is located can be identified and quantified. By real-time monitoring the ambient electromagnetic field, it helps to distinguish the electromagnetic radiation generated by the device itself and the ambient electromagnetic interference. Spectrum separation can reveal the composition of the ambient electromagnetic field, including electromagnetic interference sources at different frequencies. It helps to analyze the characteristics of the ambient electromagnetic interference and provides a basis for subsequent identification of interference sources. The established electromagnetic data of the device is the electromagnetic radiation data obtained under no interference or minimal interference conditions, which provides a reference standard for analyzing the electromagnetic characteristics of the device under normal operating conditions. It can reveal the specific impacts of ambient electromagnetic interference on the frequency shift, amplitude change, etc. of the device operating state, thus providing a basis for adjusting the real-time device electromagnetic radiation. Combining the impact of ambient electromagnetic interference and the established electromagnetic data of the device can more accurately determine the electromagnetic radiation situation of the device in the real-time environment, which helps to identify electromagnetic interference. Spectrum separation can reveal the electromagnetic radiation spectrum of the device in the real-time environment, including the spectrum change caused by ambient interference. It helps to identify and evaluate the degree and characteristics of electromagnetic interference. By comprehensively analyzing the ambient spectrum change and the device spectrum change, the total spectrum change can be determined, which helps to comprehensively evaluate the impact of electromagnetic interference on the device performance and provides guidance for subsequent interference suppression and electromagnetic compatibility design.

[0018] Optionally, analyzing the operation result according to the change time to determine whether there is electromagnetic interference includes:

[0019] According to the change time, determine the time series when the waveform changes;

[0020] Analyze the operation result to determine the output content corresponding to the time series;

[0021] Analyze the output content to determine the content integrity;

[0022] Based on the content integrity, determine whether there is electromagnetic interference.

[0023] Through this solution, determine the time when key events or anomalies occur during the operation of the device, providing a time reference for subsequent analysis. Identify possible abnormal situations during the operation of the device. Identify the output characteristics of the device at specific time points. Determine whether the device output content is affected by electromagnetic interference. Determine the presence or absence of electromagnetic interference and evaluate the degree of influence of electromagnetic interference on the device operation.

[0024] Optionally, the determining whether there is electromagnetic interference according to the change time includes:

[0025] Determine the operation node according to the change time;

[0026] Analyze the operation node to determine the operation logic;

[0027] Determine whether there is electromagnetic interference according to the operation logic and the operation result.

[0028] Through this solution, record the key time points during the operation of the device through real-time monitoring. Identifying the key nodes during the operation of the device helps to analyze the behavior and state of the device at these time points. Collect the output results of the device at each operation node, providing a data basis for analyzing the device performance and detecting electromagnetic interference.

[0029] Optionally, the determining whether there is electromagnetic interference according to the operation logic and the operation result includes:

[0030] Based on the operation logic, analyze the operation result to determine the response speed of the operation node;

[0031] Determine the response delay duration according to the response speed;

[0032] Compare the response delay duration with a preset delay threshold to obtain a comparison result;

[0033] According to the comparison result, if the response delay duration is greater than the preset delay threshold, determine that there is electromagnetic interference.

[0034] Through this solution, analyze the expected behavior of the device at key nodes to provide a basis for judging whether the actual operation results meet the expectations. Calculate the response speed of the device to help determine whether the device can respond to external changes in a timely manner. Quantify the response delay duration of the device to provide a quantitative index for judging whether there is electromagnetic interference. Provide a standard for judging whether the device response is normal. If it exceeds the preset delay threshold, it indicates the existence of electromagnetic interference. Through comparison, it is possible to directly judge whether the response delay duration of the device exceeds the normal range. Determine whether the device is affected by electromagnetic interference based on the comparison result of the response delay duration and the preset delay threshold.

[0035] Optionally, before obtaining the device operation information, it further includes:

[0036] Obtain device information; analyze the device information to determine the device application scenario and device application conditions;

[0037] Determine the electromagnetic interference scenario according to the device application scenario and the device application conditions;

[0038] Analyze the electromagnetic interference scenario to determine the interference test plan;

[0039] Test the device according to the device information and the interference test plan to determine whether the device is qualified;

[0040] The obtaining of the device operation information includes:

[0041] If it is determined that the device is qualified, then obtain the device operation information.

[0042] Through this solution, clarify the focus and purpose of the research. Create a test environment that simulates actual working conditions to ensure the effectiveness and reliability of the test results. By installing devices such as sensors and data acquisition cards, electromagnetic data during the device operation can be captured in real time. Ensure that the monitoring device can accurately measure the electromagnetic field and improve the accuracy of data analysis. Set the parameters for data acquisition according to the analysis requirements to ensure that the collected data can meet the analysis requirements. Start the device and set the working mode to make the device in a stable working state for data acquisition. Verify the working state of the device and the function of the data acquisition system through preliminary tests to ensure that reliable data can be obtained in the formal test. Ensure that there is sufficient storage space and recording devices to save the collected data to provide data support for subsequent analysis. Ensure that the test process complies with safety standards and regulatory requirements to ensure the legality and safety of the test.

[0043] Optionally, the analyzing the electromagnetic interference scenario to determine the interference test plan includes:

[0044] Analyze the electromagnetic interference scenario to determine several device operation states and several interfering devices;

[0045] Analyze the several interference devices and determine the interference operation form;

[0046] Analyze the operating status of each device and the device information to determine the electromagnetic changes in the operating status of each device when there is no electromagnetic interference;

[0047] The interference test plan is determined according to the interference operation form and the electromagnetic change.

[0048] This plan identifies potential sources of electromagnetic interference, providing targeted targets for subsequent interference analysis and testing. Analyzing how interference signals propagate helps design effective interference suppression measures and test methods. Evaluating the frequency range and device range potentially affected by interference provides a basis for developing a test plan. Collecting electromagnetic data from real-world environments provides a realistic data foundation for interference analysis and testing. Modeling the generation and propagation of interference signals helps predict and assess the impact of interference. Analyzing the device's sensitivity to interference provides a reference for determining test focus and test conditions. Based on the analysis results, test scenarios are designed to ensure that the test covers the interference conditions likely to be encountered in actual use. Appropriate test equipment and instrumentation are selected based on test requirements to ensure test accuracy and efficiency. Detailed test steps and processes are developed to ensure standardized and repeatable testing. Preliminary testing verifies the test plan and equipment performance, providing a basis for adjustments to the formal test. Based on the results of the preliminary tests, the test plan is adjusted to improve its relevance and effectiveness. Actual testing collects data, providing empirical evidence for analyzing and evaluating electromagnetic interference. Analyzing the test results identifies interference characteristics, providing a basis for improving electromagnetic compatibility. Based on the test results and analysis, specific electromagnetic compatibility improvement measures are proposed to guide equipment design and production.

[0049] Optionally, testing the device according to the device information and the interference test scheme to determine whether the device is qualified includes:

[0050] Performing interference simulation testing on the device according to the interference testing scheme and obtaining simulation test results;

[0051] Determining a qualified status in each electromagnetic interference scenario based on the device information;

[0052] Compare each simulation test result with the corresponding qualified state to obtain a comparison result;

[0053] According to the comparison result, determine whether the equipment is qualified.

[0054] Through this solution, ensure that all the equipment and resources required for testing are ready, providing guarantee for the smooth progress of the test. Set the equipment to a specific test state to simulate actual usage conditions and improve the reliability of test results. Control the electromagnetic background and other conditions of the test environment to ensure the consistency and repeatability of test results. Collect electromagnetic data during the operation of the equipment to provide a data basis for subsequent spectrum analysis and interference evaluation. Through the spectrum separation of environmental electromagnetic data, reveal the electromagnetic interference characteristics in the environment and provide reference for equipment interference analysis. Evaluate the impact of the environment on the equipment operation to help understand the possible interference situations that the equipment may encounter in actual use. Collect the electromagnetic data of the equipment itself to provide direct basis for equipment interference analysis and spectrum change. Through the spectrum separation of the equipment electromagnetic data, analyze the electromagnetic characteristics of the equipment itself and identify potential electromagnetic interference sources. Compare the environmental spectrum change and the equipment spectrum change to determine whether the equipment is affected by environmental electromagnetic interference. Through the analysis of test results, evaluate the electromagnetic compatibility of the equipment and provide basis for the determination of equipment qualification. Determine whether the equipment is qualified according to the electromagnetic compatibility standard and test results.

[0055] Optionally, determining the real-time equipment electromagnetism during the operation according to the real-time operation impact and the established electromagnetism of the equipment includes:

[0056] Analyze the operation mode to determine whether the equipment is operating in a single module at the current moment;

[0057] If it is not operating in a single module, obtain the module information;

[0058] Analyze the module information to determine the module impact during the operation;

[0059] According to the real-time operation impact, the module impact and the established electromagnetism of the equipment, determine the real-time equipment electromagnetism during the operation.

[0060] Through this solution, obtain the real-time environmental electromagnetic data during the operation of the equipment to provide a basis for analyzing the impact of the environment on the equipment. Analyze the impact of environmental electromagnetism on the equipment operation to identify the characteristics and intensity of environmental electromagnetic interference. Extract the electromagnetic characteristics of the equipment from the established electromagnetic data of the equipment to provide reference for real-time equipment electromagnetism analysis. Combine the environmental electromagnetic impact and the established electromagnetic characteristics of the equipment to synthesize the real-time electromagnetic signal of the equipment in the current operation state and simulate the actual operation environment. Analyze the real-time equipment electromagnetic signal, evaluate the electromagnetic compatibility of the equipment, and identify potential electromagnetic interference sources. Through spectrum separation, analyze the changes of different frequency components to identify the characteristics of electromagnetic interference and the electromagnetic characteristics of the equipment itself. Identify the interference characteristics and the electromagnetic characteristics of the equipment itself in the real-time equipment electromagnetic signal to provide basis for electromagnetic compatibility improvement. According to the analysis results of the real-time equipment electromagnetic signal, evaluate the electromagnetic compatibility of the equipment in the current operation state and provide guidance for the improvement of the equipment.

[0061] In a second aspect, the present application provides an electromagnetic interference analysis system for digital office equipment, and the system includes:

[0062] An information analysis module, configured to obtain device operation information; analyze the device operation information to determine an operation mode; and determine an operation result according to the operation mode;

[0063] A spectrum analysis module, configured to obtain operation electromagnetic data; analyze the operation electromagnetic data to determine a spectrum change;

[0064] An interference analysis module, configured to determine a change time according to the spectrum change, and analyze the operation result according to the change time to determine whether there is electromagnetic interference.

[0065] Optionally, when the spectrum analysis module analyzes the operation electromagnetic data to determine a spectrum change, it is used for:

[0066] Analyze the operation electromagnetic data to determine real-time environmental electromagnetism;

[0067] Perform spectrum separation on the real-time environmental electromagnetism to obtain an environmental spectrum change;

[0068] Obtain the established electromagnetism of the device;

[0069] Determine the real-time operation impact of the environment on the device during the device operation according to the environmental spectrum change;

[0070] Determine the real-time device electromagnetism during the operation according to the real-time operation impact and the established electromagnetism of the device; and perform spectrum separation on the real-time device electromagnetism to obtain a device spectrum change;

[0071] Determine the environmental spectrum change and the device spectrum change as the spectrum change.

[0072] Optionally, when the interference analysis module analyzes the operation result according to the change time to determine whether there is electromagnetic interference, it is used for:

[0073] Determine a time series when a waveform change exists according to the change time;

[0074] Analyze the operation result to determine the output content corresponding to the time series;

[0075] Analyze the output content to determine content integrity;

[0076] Determine whether there is electromagnetic interference according to the content integrity.

[0077] Optionally, when the interference analysis module analyzes the operation result according to the change time to determine whether there is electromagnetic interference, it is used for:

[0078] Determine the operation node according to the change time;

[0079] Analyze the operation node to determine the operation logic;

[0080] Determine whether there is electromagnetic interference according to the operation logic and the operation result.

[0081] Optionally, when the interference analysis module determines whether there is electromagnetic interference according to the operation logic and the operation result, it is used for:

[0082] Analyze the operation result based on the operation logic to determine the response speed of the operation node;

[0083] Determine the response delay duration according to the response speed;

[0084] Compare the response delay duration with a preset delay threshold to obtain a comparison result;

[0085] According to the comparison result, if the response delay duration is greater than the preset delay threshold, it is determined that there is electromagnetic interference.

[0086] Optionally, the electromagnetic interference analysis system further includes a qualification test module, which is used for:

[0087] Obtain device information; analyze the device information to determine the device application scenario and device application conditions;

[0088] Determine the electromagnetic interference scenario according to the device application scenario and the device application conditions;

[0089] Analyze the electromagnetic interference scenario to determine the interference test plan;

[0090] Test the device according to the device information and the interference test plan to determine whether the device is qualified;

[0091] When the information analysis module obtains the device operation information, it is used for:

[0092] If it is determined that the device is qualified, obtain the device operation information.

[0093] Optionally, when the qualification test module analyzes the electromagnetic interference scenario to determine the interference test plan, it is used for:

[0094] Analyze the electromagnetic interference scenario to determine several device operation states and several interfering devices;

[0095] Analyze the several interfering devices to determine the interference operation form;

[0096] Analyze the operating status of each device and the device information, and determine the electromagnetic changes in the operating status of each device when there is no electromagnetic interference;

[0097] Determine the interference test plan according to the interference operation form and the electromagnetic changes.

[0098] Optionally, when the qualified test module tests the device according to the device information and the interference test plan to determine whether the device is qualified, it is used for:

[0099] Conduct an interference simulation test on the device according to the interference test plan, and obtain the simulation test result;

[0100] Determine the qualified status under each electromagnetic interference scenario according to the device information;

[0101] Compare each simulation test result with the corresponding qualified status to obtain a comparison result;

[0102] Determine whether the device is qualified according to the comparison result.

[0103] Optionally, when the spectrum analysis module determines the real-time device electromagnetic during operation according to the real-time operation impact and the established electromagnetic of the device, it is used for:

[0104] Analyze the operation mode to determine whether the device is operating in a single module at the current moment;

[0105] If it is not operating in a single module, obtain the module information;

[0106] Analyze the module information to determine the module impact during operation;

[0107] Determine the real-time device electromagnetic during operation according to the real-time operation impact, the module impact, and the established electromagnetic of the device. Description of the Drawings

[0108] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0109] Figure 1 It is a schematic diagram of an application scenario provided by an embodiment of the present application;

[0110] Figure 2 It is a flowchart of a method for analyzing electromagnetic interference of a digital office device provided by an embodiment of the present application;

[0111] Figure 3 This is a schematic structural diagram of an electromagnetic interference analysis system for a digital office device provided by an embodiment of the present application. Specific implementation manners

[0112] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0113] In addition, the term "and / or" in this article is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. These three situations. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after, unless otherwise specified.

[0114] The embodiments of the present application will be further described in detail below with reference to the accompanying drawings of the specification.

[0115] With the wide application of these devices, the problem of electromagnetic interference (EMI) generated by them has become increasingly prominent, posing a potential impact on the normal operation of surrounding devices and system stability.

[0116] Electromagnetic interference may not only affect the functional performance of the device, but also lead to system failures, data loss, and even affect the security of the device. Therefore, how to effectively analyze and identify the electromagnetic interference problems of digital office devices has become one of the key technical challenges in the design, production and use of electronic devices.

[0117] Based on this, the present application provides a method and system for electromagnetic interference analysis of digital office equipment, which includes obtaining device operation information; analyzing the device operation information to determine the operation mode; determining the operation result according to the operation mode; obtaining operation electromagnetic data; analyzing the operation electromagnetic data to determine the spectrum change; determining the change time according to the spectrum change, and analyzing the operation result according to the change time to determine whether there is electromagnetic interference. Collecting the real-time operation status of the device provides basic data for subsequent analysis and helps to identify the behavior of the device under normal operating conditions. Identifying the current working state of the device makes the interference analysis more targeted and accurate. By comparing the expected results and the actual results under different operation modes, it is easier to detect abnormalities and provide a basis for judging whether there is interference. Real-time monitoring of the electromagnetic signals transmitted and received by the device provides raw data for spectrum analysis. Through spectrum analysis, abnormal changes in the electromagnetic signals can be identified. Determining the specific time point when the interference occurs helps to trace the interference source and interference events and provides a time reference for subsequent interference analysis. By analyzing the operation result at a specific time point, it can be judged whether the interference affects the normal function of the device and the degree of influence. Through the comprehensive analysis above, it is finally determined whether the device is affected by electromagnetic interference, providing a decision-making basis for taking measures to reduce or eliminate the interference.

[0118] Figure 1 FIG. 4 is a schematic diagram of an application scenario provided by the present application. When measuring digital office equipment, the method provided by the present application is applied. Specifically, the method provided by the present application is applied to any server. The server interacts with the device under test and the electromagnetic monitoring device, collects the device operation information of the device under test, provides basic data for subsequent analysis, and helps to identify the behavior of the device under normal operating conditions. Identifying the current working state of the device makes the interference analysis more targeted and accurate. By comparing the expected results and the actual results under different operation modes, it is easier to detect abnormalities and provide a basis for judging whether there is interference. The operation electromagnetic data transmitted and received by the device under test is real-time monitored by the electromagnetic monitoring device, providing raw data for spectrum analysis. Through spectrum analysis, abnormal changes in the electromagnetic signals can be identified. Determining the specific time point when the interference occurs helps to trace the interference source and interference events and provides a time reference for subsequent interference analysis. By analyzing the operation result at a specific time point, it can be judged whether the interference affects the normal function of the device and the degree of influence. Through the comprehensive analysis above, it is finally determined whether the device is affected by electromagnetic interference, providing a decision-making basis for taking measures to reduce or eliminate the interference.

[0119] For the specific implementation manner, reference may be made to the following embodiments.

[0120] Figure 2The flowchart of a method for analyzing electromagnetic interference of a digital office device provided by an embodiment of the present application. The method of this embodiment can be applied to the server in the above scenario. As Figure 2 shown, the method includes:

[0121] S201. Obtain device operation information; analyze the device operation information to determine the operation mode; determine the operation result according to the operation mode;

[0122] The device operation information can be data and information reflecting the status, performance, and operations of the digital office device during operation, such as CPU load, memory usage, hard disk activity, network traffic, temperature, etc.

[0123] The operation mode can be the operation state of the digital office device under specific working conditions, such as startup mode, standby mode, normal working mode, energy-saving mode, fault detection mode, etc.

[0124] The operation result can be the output or state of the device after performing a specific operation or task to evaluate the device performance and diagnose potential problems.

[0125] Specifically, collect the operation information of the device under test through sensors, monitoring software, or other data collection means, including but not limited to parameters such as CPU usage, memory occupancy, network traffic, temperature, etc. Analyze the collected operation information in real time to identify the current operation mode of the device. Analyze the corresponding operation result according to the operation mode of the device.

[0126] S202. Obtain operation electromagnetic data; analyze the operation electromagnetic data to determine the spectrum change;

[0127] The operation electromagnetic data can be the relevant information of the electromagnetic signals generated during the operation of the digital office device.

[0128] The spectrum change can be the change situation of the electromagnetic data in the frequency domain, usually detected by devices such as spectrum analyzers, including changes in spectrum peak value, bandwidth, harmonic components, etc.

[0129] Specifically, use built-in or external electromagnetic monitoring devices to obtain the electromagnetic radiation data of the device under test during operation in real time. Perform spectrum analysis on the obtained electromagnetic data, and use mathematical processing such as Fourier transform to identify the changes and anomalies in the spectrum.

[0130] S203. Determine the change time according to the spectrum change, and analyze the operation result according to the change time to determine whether there is electromagnetic interference.

[0131] Electromagnetic interference can be any unwanted electromagnetic energy, which may interfere with or damage the normal operation of electronic devices, including radiation interference and conduction interference, etc.

[0132] Specifically, analyze the time point when the spectrum change occurs to determine the exact moment of interference. Combine the change time point to analyze whether the operation result of the device is affected by the interference, such as whether there are problems like data errors or slow operations. Based on the above analysis results, judge whether the device is affected by electromagnetic interference, as well as the degree and impact of the interference.

[0133] Through this solution, the real-time operation status of the device is collected, providing basic data for subsequent analysis and helping to identify the behavior of the device under normal operating conditions. Identifying the current working state of the device makes the interference analysis more targeted and accurate. By comparing the expected results with the actual results under different operating modes, it is easier to detect abnormalities and provide a basis for judging whether there is interference. Real-time monitoring of the electromagnetic signals transmitted and received by the device provides raw data for spectrum analysis. Through spectrum analysis, abnormal changes in the electromagnetic signals can be identified. Determining the specific time point when the interference occurs helps to trace the interference source and interference events, providing a time reference for subsequent interference analysis. By analyzing the operation results at a specific time point, it can be judged whether the interference affects the normal function of the device and the degree of the impact. Based on the above analysis, finally judge whether the device is affected by electromagnetic interference, providing a decision basis for taking measures to mitigate or eliminate the interference.

[0134] In some embodiments, analyze the operating electromagnetic data to determine the real-time environmental electromagnetic; perform spectrum separation on the real-time environmental electromagnetic to obtain environmental spectrum changes; obtain the established electromagnetic of the device; according to the environmental spectrum changes, determine the real-time impact of the environment on the real-time operation of the device during the operation of the device; according to the real-time operation impact and the established electromagnetic of the device, determine the real-time device electromagnetic during the operation process; and perform spectrum separation on the real-time device electromagnetic to obtain device spectrum changes; determine the environmental spectrum changes and the device spectrum changes as the spectrum changes.

[0135] The real-time environmental electromagnetic can be the real-time data of the electromagnetic field or electromagnetic radiation existing in the surrounding environment when the digital office device is operating.

[0136] The established electromagnetic of the device can be the level of electromagnetic radiation that the device should generate under normal operating conditions according to the specifications and design expectations of the device.

[0137] The real-time device electromagnetic can be the real-time data of the electromagnetic radiation actually generated by the digital office device during the operation process.

[0138] The environmental spectrum changes can be the spectrum changes generated by the electromagnetic field in the environment where the device is located as it changes over time or conditions.

[0139] The spectrum change of a device can be the change in the spectrum of the electromagnetic radiation generated by the device in a real-time environment over time or conditions.

[0140] Specifically, use a high-sensitivity electromagnetic field detection device to monitor the electromagnetic field in the environment where the device is located in real time. Through a data acquisition system, synchronously record the intensity and phase information of the environmental electromagnetic field at different frequencies. Perform a fast Fourier transform (FFT) or similar spectrum analysis techniques on the collected environmental electromagnetic data to obtain the environmental electromagnetic spectrum. Analyze the environmental electromagnetic spectrum to identify and isolate the main electromagnetic interference sources in the environment. Continuously monitor the environmental electromagnetic spectrum and record the spectrum change conditions at different time points. By comparing the spectrum data of different time periods, analyze the change trend and characteristics of the environmental spectrum. Under the normal operating conditions of the device, use the same electromagnetic monitoring device to obtain the electromagnetic radiation data of the device. Determine the established electromagnetic of the device in the standard operating mode, compare the environmental electromagnetic spectrum change with the electromagnetic radiation baseline of the device, and analyze the impact of environmental changes on the electromagnetic radiation of the device. Identify the environmental changes during the actual operation of the device and synchronously collect the electromagnetic radiation data of the device. Considering the influence of environmental electromagnetic interference, adjust the collected electromagnetic data of the device to reflect the electromagnetic radiation situation of the device in the real-time environment. Analyze the possible impact of environmental electromagnetic interference on the working state of the device, perform spectrum analysis on the adjusted real-time device electromagnetic data to obtain its spectrum distribution. Analyze the real-time device electromagnetic spectrum to identify the spectrum changes caused by environmental interference. Conduct a comprehensive analysis of the environmental spectrum change and the real-time device spectrum change to determine the total spectrum change. Through comparison and analysis, identify the characteristics of electromagnetic interference. Based on the results of the spectrum change analysis, determine whether there is electromagnetic interference and evaluate the degree of interference. If it is determined that there is electromagnetic interference, further analyze the source and possible impact of the interference.

[0141] Through this solution, the electromagnetic background of the environment where the device is located is identified and quantified. By continuously monitoring the environmental electromagnetic field, it helps to distinguish the electromagnetic radiation generated by the device itself from environmental electromagnetic interference. Spectrum separation can reveal the composition of the environmental electromagnetic field, including electromagnetic interference sources at different frequencies. It helps to analyze the characteristics of environmental electromagnetic interference and provides a basis for subsequent identification of interference sources. The established electromagnetic data of the device is the electromagnetic radiation data obtained under interference-free or minimal interference conditions, which provides a reference standard for analyzing the electromagnetic characteristics of the device under normal operating conditions. It can reveal the specific impacts of environmental electromagnetic interference on the operating state of the device, such as frequency shift and amplitude change, thus providing a basis for adjusting the real-time electromagnetic radiation of the device. By combining the impact of environmental electromagnetic interference and the established electromagnetic data of the device, the electromagnetic radiation situation of the device in the real-time environment can be determined more accurately, which helps to identify electromagnetic interference. Spectrum separation can reveal the electromagnetic radiation spectrum of the device in the real-time environment, including spectrum changes caused by environmental interference. It helps to identify and evaluate the degree and characteristics of electromagnetic interference. By comprehensively analyzing the environmental spectrum changes and the device spectrum changes, the total spectrum changes can be determined, which helps to comprehensively evaluate the impact of electromagnetic interference on the device performance and provides guidance for subsequent interference suppression and electromagnetic compatibility design.

[0142] In some embodiments, according to the change time, a time series when the waveform changes is determined; the operation result is analyzed to determine the output content corresponding to the time series; the output content is analyzed to determine the content integrity; and according to the content integrity, whether there is electromagnetic interference is determined.

[0143] The waveform can be a graph of the electromagnetic change over time.

[0144] The time series can be a series of data points arranged in the order of their occurrence time.

[0145] Specifically, when spectrum analysis detects a spectrum change, record the time point when this change occurs. Extract the operation result data corresponding to the change time point from the device operation information. Check the extracted operation result data for data errors or abnormal behaviors. Analyze the device performance indicators to see if there are any abnormalities near the change time point. Compare the operation results before and after the change time point to determine if there is a significant performance degradation or functional failure. Based on the analysis of the operation results, determine whether the interference has caused a decline in the device performance. Judge whether the interference has caused data loss or system failure. Compare the analyzed operation results with the established electromagnetic standards of the device to determine whether the operation results meet the expectations. Through the above comprehensive analysis, judge whether there is indeed electromagnetic interference at the change time point. If the operation results are abnormal and correspond to the spectrum change time point, there is electromagnetic interference. If the operation results are not abnormal, or the abnormality has no direct association with the spectrum change, there is no electromagnetic interference.

[0146] Through this solution, determine the time when key events or anomalies occur during the operation of the device, providing a time reference for subsequent analysis. Identify possible abnormal situations during the operation of the device. Identify the output characteristics of the device at specific time points. Determine whether the output content of the device is affected by electromagnetic interference. Determine the presence or absence of electromagnetic interference and evaluate the degree of influence of electromagnetic interference on the operation of the device.

[0147] In some embodiments, according to the change time, determine the operation nodes; analyze the operation nodes to determine the operation logic; according to the operation logic and the operation result, determine whether there is electromagnetic interference.

[0148] The operation nodes can be key points where the electromagnetic radiation characteristics change during the operation of the device.

[0149] The operation logic can be the rules and algorithms followed by the device during operation.

[0150] The operation result can be the output or state of the device after evaluating the device performance and diagnosing potential problems.

[0151] Specifically, monitor and collect the operation information of the device. Analyze the collected operation information to identify the current working state of the device. According to the operation mode of the device, evaluate the performance indicators of the device to determine the operation result. Use a spectrum analyzer to monitor the electromagnetic signals generated by the device in real time. Perform spectrum analysis on the electromagnetic data to identify any abnormal spectrum changes. Record the time points when the spectrum changes occur, and these time points are related to electromagnetic interference events. Synchronize the change time points with the device operation result data to ensure that the analyzed data corresponds. Analyze the operation result corresponding to the change time point to check for any abnormal behavior or performance degradation. Compare the analyzed operation result with the normal working standard or historical data of the device to identify possible interference effects. Determine whether there is electromagnetic interference based on the spectrum changes, operation result analysis, and comparison with the normal standard.

[0152] Through this solution, record the key time points during the operation of the device through real-time monitoring. Identifying the key nodes during the operation of the device helps analyze the behavior and state of the device at these time points. Collect the output results of the device at each operation node, providing a data basis for analyzing the device performance and detecting electromagnetic interference.

[0153] In some embodiments, based on the operation logic, analyze the operation result to determine the response speed of the operation node; according to the response speed, determine the response delay duration; compare the response delay duration with a preset delay threshold to obtain a comparison result; according to the comparison result, if the response delay duration is greater than the preset delay threshold, determine that there is electromagnetic interference.

[0154] The response speed can be the degree of how quickly a device responds to an input signal or instruction.

[0155] The response delay duration can be the time length from when the input signal reaches the device until the device generates an output result.

[0156] The preset delay threshold can be a pre-set time value used to determine whether the device's response is within an acceptable range.

[0157] The comparison result can be the process or its result of drawing a conclusion by comparing two or more data sets, performance metrics, or parameters.

[0158] Specifically, analyze the expected behavior and logic of the device on the operating node to understand how the device should respond at these critical time points. Calculate the time interval from the start of the operating node to when the device generates a response to determine the response speed of the device. Based on the response speed, calculate the duration of the response delay, which is the difference between the actual response time and the expected response time. The preset delay threshold is used as a criterion to judge whether the device's response is normal. Compare the calculated response delay duration with the preset delay threshold to determine whether there is a delay. If the response delay duration is greater than the preset delay threshold, it is determined that the device may be subject to electromagnetic interference.

[0159] Through this solution, analyze the expected behavior of the device at critical nodes to provide a basis for judging whether the actual operation results meet the expectations. Calculate the response speed of the device to help judge whether the device can respond to external changes in a timely manner. Quantify the response delay duration of the device to provide a quantitative indicator for judging whether there is electromagnetic interference. Provide a criterion for judging whether the device's response is normal, and exceeding the preset delay threshold indicates the existence of electromagnetic interference. Through comparison, it can directly be judged whether the response delay duration of the device exceeds the normal range. Based on the comparison result of the response delay duration and the preset delay threshold, determine whether the device is subject to electromagnetic interference.

[0160] In some embodiments, obtain device information; analyze the device information to determine the device application scenario and device application conditions; based on the device application scenario and the device application conditions, determine the electromagnetic interference scenario; analyze the electromagnetic interference scenario to determine the interference test plan; according to the device information and the interference test plan, test the device to determine whether the device is qualified; if it is determined that the device is qualified, obtain the device operation information.

[0161] Device information can be the basic data and characteristics of a digital office device, including the device model, specifications, working principle, technical parameters, performance metrics, etc.

[0162] The device application scenario can be the specific environment and situation in the actual use of digital office equipment, describing how the device interacts with users and its role in work.

[0163] The device application conditions can be the external environment and working conditions when the digital office equipment is running.

[0164] The electromagnetic interference scenario can be the specific environment and situation that may cause or generate electromagnetic interference, including mutual interference between devices, interference from external electromagnetic sources, etc.

[0165] The interference test scheme can be a series of test methods and steps designed to detect and evaluate the electromagnetic interference generated by digital office equipment, including the purpose, method, equipment, and evaluation criteria of the test.

[0166] Specifically, determine the digital office equipment to be analyzed and the types of electromagnetic interference it may be subject to. Place the device in a controllable test environment that can simulate actual working conditions. Install necessary monitoring instruments on the device to capture electromagnetic data and operating information in real time. Calibrate the monitoring instruments to ensure the accuracy and reliability of the collected data. Set up the data acquisition of the hardware device and supporting software to collect and analyze the electromagnetic data during the operation of the device in real time. Define the parameters of data acquisition according to the analysis objectives. Start the device and make it run in a stable mode to start data acquisition. Before the formal data acquisition, conduct preliminary tests to verify the working status of the device and the function of data acquisition. Prepare a device for recording and storing the collected electromagnetic data and operating information. Ensure that the test process complies with all relevant safety standards and regulatory requirements.

[0167] Through this scheme, clarify the focus and purpose of the research. Create a test environment that simulates actual working conditions to ensure the effectiveness and reliability of the test results. By installing devices such as sensors and data acquisition cards, it is possible to capture the electromagnetic data during the operation of the device in real time. Ensure that the monitoring device can accurately measure the electromagnetic field to improve the accuracy of data analysis. Set the parameters of data acquisition according to the analysis requirements to ensure that the collected data can meet the analysis requirements. Start the device and set the working mode to make the device in a stable working state for data acquisition. Verify the working status of the device and the function of the data acquisition system through preliminary tests to ensure that reliable data can be obtained in the formal test. Ensure that there is sufficient storage space and recording devices to save the collected data to provide data support for subsequent analysis. Ensure that the test process complies with safety standards and regulatory requirements to ensure the legality and safety of the test.

[0168] In some embodiments, analyze the electromagnetic interference scenario to determine the operating states of a number of devices and a number of interfering devices; analyze the number of interfering devices to determine the interference operating mode; analyze the operating state of each device and the device information to determine the electromagnetic changes in the operating state of each device without electromagnetic interference; and determine the interference test plan according to the interference operating mode and the electromagnetic changes.

[0169] The interfering device can be other devices that may cause electromagnetic interference to digital office equipment.

[0170] The electromagnetic change can be any change in parameters such as the intensity, frequency, and phase of the electromagnetic field or electromagnetic signal.

[0171] The interference operating mode can be the manifestation form of electromagnetic interference, including the frequency, intensity, duration of the interference signal, and the propagation mode of the interference, etc.

[0172] Specifically, investigate and identify the sources that may cause electromagnetic interference, including potential interference sources inside and outside the device. Study how the interference signal propagates from the interference source to the sensitive device, including through space radiation, conductor coupling, etc. Evaluate the frequency range that the interference signal may affect and the operating range of the device. Collect the electromagnetic data of the device in different operating modes and environments, including the interference signal and the environmental electromagnetic background. According to the collected data, establish a mathematical model of electromagnetic interference to simulate the generation and propagation of the interference signal. Through testing or simulation, evaluate the sensitivity of the device to electromagnetic interference and determine which components or functions are most vulnerable to interference. According to the analysis results, design a series of interference test scenarios to simulate the interference situations that may be encountered in the actual working environment. According to the requirements of the test scenario, select appropriate test equipment and instruments. Develop detailed test procedures such as the test steps, parameter settings, data acquisition, and processing methods. Before the formal test, conduct a preliminary test to verify the feasibility of the test procedure and the accuracy of the test equipment. According to the results of the preliminary test, adjust and optimize the test plan to ensure that the test can effectively evaluate the electromagnetic interference. Implement the interference test according to the final test plan, record the test data and the observed phenomena. Analyze the test results to determine the characteristics and effects of the electromagnetic interference, as well as the response of the device to the interference. According to the test results and the analysis, propose suggestions and measures to improve the electromagnetic compatibility of the device.

[0173] Through this solution, the sources that may cause electromagnetic interference are identified, providing targeted objectives for subsequent interference analysis and testing. Analyzing how interference signals propagate helps in designing effective interference suppression measures and testing methods. Evaluating the frequency range and equipment range that the interference may affect provides a basis for formulating the testing plan. By collecting electromagnetic data in the actual environment, a real data foundation is provided for interference analysis and testing. Simulating the generation and propagation of interference signals through models helps in predicting and evaluating the impact of interference. Analyzing the sensitivity of the equipment to interference provides a reference for determining the key points and testing conditions of the test. Designing test scenarios based on the analysis results ensures that the tests can cover the interference situations that may be encountered in actual use. Selecting appropriate test equipment and instruments according to the test requirements ensures the accuracy and efficiency of the tests. Formulating detailed test steps and procedures ensures the standardization and repeatability of the tests. Verifying the performance of the test plan and equipment through preliminary tests provides a basis for adjustment in the formal test. According to the results of the preliminary tests, the test plan is adjusted to improve the pertinence and effectiveness of the tests. Through actual tests, data is collected to provide evidence for analyzing and evaluating electromagnetic interference. Analyzing the test results to identify interference characteristics provides a basis for improving electromagnetic compatibility. Based on the test results and analysis, specific electromagnetic compatibility improvement measures are proposed to guide equipment design and production.

[0174] In some embodiments, according to the interference test plan, an interference simulation test is performed on the equipment, and a simulation test result is obtained; according to the equipment information, the qualified state under each electromagnetic interference scenario is determined; each simulation test result is compared with the corresponding qualified state to obtain a comparison result; according to the comparison result, it is determined whether the equipment is qualified.

[0175] Specifically, according to the interference test plan, prepare the required test equipment and instruments such as spectrum analyzers, electromagnetic field probes, and data acquisition systems. According to the equipment information, configure the equipment to the test states of normal working mode and standby mode. Ensure that the test environment meets the requirements of the interference test plan such as the stability of the electromagnetic environment, temperature, and humidity control. During the operation of the equipment, use the monitoring system to collect electromagnetic data and ambient electromagnetic background data in real time. Perform spectrum separation on the collected real-time ambient electromagnetic data and analyze the ambient spectrum changes. According to the ambient spectrum changes, evaluate the impact of the environment on the operation of the equipment and determine the characteristics of the interference signal. Under the same test conditions, collect the electromagnetic data of the equipment. Perform spectrum separation on the collected electromagnetic data of the equipment and analyze the equipment spectrum changes. Compare the ambient spectrum changes and the equipment spectrum changes to determine the real-time interference impact on the equipment. Analyze the test results such as spectrograms and time series data to determine whether the equipment is affected by electromagnetic interference. According to the qualified criteria defined in the interference test plan, determine whether the equipment meets the electromagnetic compatibility requirements.

[0176] Through this solution, ensure that all the equipment and resources required for testing are ready, providing guarantee for the smooth progress of the test. Set the equipment to a specific test state to simulate actual usage conditions and improve the reliability of test results. Control the electromagnetic background and other conditions of the test environment to ensure the consistency and repeatability of test results. Collect electromagnetic data during the operation of the equipment to provide a data basis for subsequent spectrum analysis and interference assessment. Through the spectrum separation of environmental electromagnetic data, reveal the electromagnetic interference characteristics in the environment and provide reference for equipment interference analysis. Evaluate the impact of the environment on the operation of the equipment to help understand the possible interference situations that the equipment may encounter in actual use. Collect the electromagnetic data of the equipment itself to provide direct basis for equipment interference analysis and spectrum changes. Through the spectrum separation of the equipment's electromagnetic data, analyze the electromagnetic characteristics of the equipment itself and identify potential electromagnetic interference sources. Compare the spectrum changes of the environment and the equipment to determine whether the equipment is affected by environmental electromagnetic interference. By analyzing the test results, evaluate the electromagnetic compatibility of the equipment and provide basis for the determination of the equipment's compliance. According to the electromagnetic compatibility standard and the test results, determine whether the equipment is qualified.

[0177] In some embodiments, analyze the operating mode to determine whether the equipment is operating in a single-module mode at the current moment; if it is not operating in a single-module mode, obtain module information; analyze the module information to determine the module impact during operation; according to the real-time operation impact, the module impact, and the equipment's established electromagnetic, determine the real-time equipment electromagnetic during operation.

[0178] Single-module operation can mean that only one module (or functional unit) in the equipment is working while other modules are in the off or standby state.

[0179] The equipment's established electromagnetic can be the electromagnetic signal generated by the equipment under standard operating conditions, usually used as a reference signal when analyzing electromagnetic interference.

[0180] Specifically, use equipment such as electromagnetic field probes and spectrum analyzers to collect electromagnetic data of the equipment in real time during operation. Analyze the real-time environmental electromagnetic data to determine the degree and characteristics of the impact of environmental electromagnetic on the equipment operation. Extract electromagnetic characteristics such as the spectrum characteristics and signal intensity of the equipment from the equipment's established electromagnetic data. Combine the environmental electromagnetic impact and the equipment's established electromagnetic characteristics to synthesize the real-time electromagnetic signal of the equipment in the current operating state. Analyze the synthesized real-time equipment electromagnetic signals such as spectrum analysis and time series analysis to identify the electromagnetic characteristics of the equipment. Perform spectrum separation on the real-time equipment electromagnetic signals to analyze the changes and interference characteristics of different frequency components. Through spectrum separation and analysis, identify the interference characteristics and the electromagnetic characteristics of the equipment itself in the real-time equipment electromagnetic signals. According to the analysis results of the real-time equipment electromagnetic signals, evaluate the electromagnetic compatibility of the equipment in the current operating state.

[0181] Through this solution, real-time environmental electromagnetic data during device operation is obtained, providing a basis for analyzing the impact of the environment on the device. Analyze the impact of environmental electromagnetic on device operation, and identify the characteristics and intensity of environmental electromagnetic interference. Extract the electromagnetic characteristics of the device from the established electromagnetic data of the device, providing a reference for real-time device electromagnetic analysis. Combine the environmental electromagnetic impact and the established electromagnetic characteristics of the device to synthesize the real-time electromagnetic signal of the device in the current operating state and simulate the actual operating environment. Analyze the real-time device electromagnetic signal, evaluate the electromagnetic compatibility of the device, and identify potential electromagnetic interference sources. Through spectrum separation, analyze the changes in different frequency components to identify the characteristics of electromagnetic interference and the electromagnetic characteristics of the device itself. Identify the interference characteristics and the electromagnetic characteristics of the device itself in the real-time device electromagnetic signal, providing a basis for improving electromagnetic compatibility. According to the analysis results of the real-time device electromagnetic signal, evaluate the electromagnetic compatibility of the device in the current operating state and provide guidance for device improvement.

[0182] Figure 3 The following is a schematic structural diagram of an electromagnetic interference analysis system for a digital office device provided by an embodiment of the present application, as Figure 3 shown, the electromagnetic interference analysis system 300 of the digital office device in this embodiment includes: an information analysis module 301, a spectrum analysis module 302, and an interference analysis module 303.

[0183] The information analysis module 301 is used to obtain device operation information; analyze the device operation information to determine the operation mode; and determine the operation result according to the operation mode.

[0184] The spectrum analysis module 302 is used to obtain operation electromagnetic data; analyze the operation electromagnetic data to determine the spectrum change.

[0185] The interference analysis module 303 is used to determine the change time according to the spectrum change, and analyze the operation result according to the change time to determine whether there is electromagnetic interference.

[0186] Optionally, when the spectrum analysis module 302 analyzes the operation electromagnetic data to determine the spectrum change, it is used for:

[0187] Analyze the operation electromagnetic data to determine the real-time environmental electromagnetic.

[0188] Perform spectrum separation on the real-time environmental electromagnetic to obtain the environmental spectrum change.

[0189] Obtain the established electromagnetic of the device.

[0190] Determine the real-time operation impact of the environment on the device during device operation according to the environmental spectrum change.

[0191] Determine the real-time device electromagnetic field during operation based on the real-time operation impact and the established electromagnetic field of the device; and perform spectral separation on the real-time device electromagnetic field to obtain the device spectral change;

[0192] Determine the environmental spectral change and the device spectral change as the spectral change.

[0193] Optionally, when the interference analysis module 303 analyzes the operation result according to the change time to determine whether there is electromagnetic interference, it is used for:

[0194] Determine the time series when the waveform changes according to the change time;

[0195] Analyze the operation result to determine the output content corresponding to the time series;

[0196] Analyze the output content to determine the content integrity;

[0197] Determine whether there is electromagnetic interference according to the content integrity.

[0198] Optionally, when the interference analysis module 303 analyzes the operation result according to the change time to determine whether there is electromagnetic interference, it is used for:

[0199] Determine the operation node according to the change time;

[0200] Analyze the operation node to determine the operation logic;

[0201] Determine whether there is electromagnetic interference according to the operation logic and the operation result.

[0202] Optionally, when the interference analysis module 303 determines whether there is electromagnetic interference according to the operation logic and the operation result, it is used for:

[0203] Based on the operation logic, analyze the operation result to determine the response speed of the operation node;

[0204] Determine the response delay duration according to the response speed;

[0205] Compare the response delay duration with a preset delay threshold to obtain a comparison result;

[0206] According to the comparison result, if the response delay duration is greater than the preset delay threshold, it is determined that there is electromagnetic interference.

[0207] Optionally, the electromagnetic interference analysis system 300 further includes a pass test module 304 for:

[0208] Obtain device information; analyze the device information to determine the device application scenario and device application conditions;

[0209] Determine the electromagnetic interference scenario according to the device application scenario and the device application conditions;

[0210] Analyze the electromagnetic interference scenario to determine the interference test plan;

[0211] Test the device according to the device information and the interference test plan to determine whether the device is qualified;

[0212] When the information analysis module obtains the device operation information, it is used for:

[0213] If it is determined that the device is qualified, obtain the device operation information.

[0214] Optionally, when the qualification test module 304 analyzes the electromagnetic interference scenario to determine the interference test plan, it is used for:

[0215] Analyze the electromagnetic interference scenario to determine several device operation states and several interfering devices;

[0216] Analyze the several interfering devices to determine the interference operation form;

[0217] Analyze each device operation state and the device information to determine the electromagnetic change under each device operation state without electromagnetic interference;

[0218] Determine the interference test plan according to the interference operation form and the electromagnetic change.

[0219] Optionally, when the qualification test module 304 tests the device according to the device information and the interference test plan to determine whether the device is qualified, it is used for:

[0220] Conduct an interference simulation test on the device according to the interference test plan and obtain the simulation test result;

[0221] Determine the qualified state under each electromagnetic interference scenario according to the device information;

[0222] Compare each simulation test result with the corresponding qualified state to obtain a comparison result;

[0223] Determine whether the device is qualified according to the comparison result.

[0224] Optionally, when the spectrum analysis module 302 determines the real-time device electromagnetic during operation according to the real-time operation impact and the established electromagnetism of the device, it is used for:

[0225] Analyze the operation mode to determine whether the device is operating in a single module at the current moment;

[0226] If it is not a single module running, obtain module information;

[0227] Analyze the module information to determine the module impact during operation;

[0228] Based on the real-time operation impact, the module impact, and the established electromagnetic of the device, determine the real-time device electromagnetic during operation.

[0229] The system of this embodiment can be used to execute the method of any of the above embodiments. The implementation principle and technical effects are similar and will not be elaborated here.

Claims

1. An electromagnetic interference analysis method for digital office equipment, characterized in that Including: Obtain device information; analyze the device information to determine the device application scenario and device application conditions; Determine the electromagnetic interference scenario according to the device application scenario and the device application conditions; Analyze the electromagnetic interference scenario to determine several device operating states and several interfering devices; Analyze the several interfering devices to determine the interference operation form; Analyze each device operating state and the device information to determine the electromagnetic change under each device operating state without electromagnetic interference; Determine the interference test plan according to the interference operation form and the electromagnetic change; Test the device according to the device information and the interference test plan to determine whether the device is qualified; If it is determined that the device is qualified, obtain the device operation information; Analyze the device operation information to determine the operation mode; Determine the operation result according to the operation mode; Obtain the operating electromagnetic data; Analyze the operating electromagnetic data to determine the spectrum change; Determine the change time according to the spectrum change, and analyze the operation result according to the change time to determine whether there is electromagnetic interference; The analyzing the operating electromagnetic data to determine the spectrum change includes: Analyze the operating electromagnetic data to determine the real-time environmental electromagnetic; Perform spectrum separation on the real-time environmental electromagnetic to obtain the environmental spectrum change; Obtain the established electromagnetic of the device; Determine the real-time operation impact of the environment on the device during the device operation according to the environmental spectrum change; Determine the real-time device electromagnetic during the operation according to the real-time operation impact and the established electromagnetic of the device; and perform spectrum separation on the real-time device electromagnetic to obtain the device spectrum change; Determine the environmental spectrum change and the device spectrum change as the spectrum change; The testing the device according to the device information and the interference test plan to determine whether the device is qualified includes: Perform an interference simulation test on the device according to the interference test plan and obtain the simulation test result; Determine the qualified state under each electromagnetic interference scenario according to the device information; Compare each simulation test result with the corresponding qualified state to obtain a comparison result; Determine whether the device is qualified according to the comparison result; The determining the real-time device electromagnetic during the operation according to the real-time operation impact and the established electromagnetic of the device includes: Analyze the operation mode to determine whether the device is operating in a single module at the current moment; If it is not operating in a single module, obtain the module information; Analyze the module information to determine the module impact during the operation; Determine the real-time device electromagnetic during the operation according to the real-time operation impact, the module impact and the established electromagnetic of the device.

2. The method according to claim 1, wherein The analyzing the operation result according to the change time to determine whether there is electromagnetic interference includes: Determine the time series when the waveform changes according to the change time; Analyze the operation result to determine the output content corresponding to the time series; Analyze the output content to determine the content integrity; Determine whether there is electromagnetic interference according to the content integrity.

3. The method according to claim 1, characterized in that, The analyzing the operation result according to the change time to determine whether there is electromagnetic interference includes: Determine the operating node according to the change time; Analyze the operating node to determine the operating logic; Determine whether there is electromagnetic interference according to the operating logic and the operating result.

4. The method according to claim 3, wherein The determining whether there is electromagnetic interference according to the operating logic and the operating result includes: Based on the operating logic, analyze the operating result to determine the response speed of the operating node; Determine the response delay duration according to the response speed; Compare the response delay duration with a preset delay threshold to obtain a comparison result; According to the comparison result, if the response delay duration is greater than the preset delay threshold, determine that there is electromagnetic interference.

5. An electromagnetic interference analysis system for a digital office device, characterized in that, Applied to the method according to any one of claims 1-4, including: An information analysis module, configured to obtain device operation information; analyze the device operation information to determine an operation mode; determine an operation result according to the operation mode; A spectrum analysis module, configured to obtain operating electromagnetic data; analyze the operating electromagnetic data to determine a spectrum change; An interference analysis module, configured to determine a change time according to the spectrum change, and analyze the operating result according to the change time to determine whether there is electromagnetic interference.

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