Electromagnetic interference analysis method and system for digital office equipment

Abstract

The invention relates to the technical field of electromagnetic interference, in particular to an electromagnetic interference analysis method and system for digital office equipment. The method comprises the following steps: acquiring equipment operation information; analyzing the equipment operation information, and determining an operation mode; determining an operation result according to the operation mode; acquiring operation electromagnetic data; analyzing the operation electromagnetic data, and determining a frequency spectrum change; and determining change time according to the frequency spectrum change, analyzing the operation result according to the change time, and determining whether electromagnetic interference exists or not. The real-time operation state of the tested equipment is collected, and by comparing expected results and actual results in different operation modes, abnormity can be found more easily, and a basis is provided for judging whether interference exists or not. The electromagnetic monitoring device monitors the electromagnetic signals transmitted and received by the tested device in real time, finally judges whether the device is subjected to electromagnetic interference or not, and provides a decision basis for taking measures for reducing or eliminating interference.

Description

Technical Field

[0001] The present application relates to the field of electromagnetic interference technology, and in particular to an electromagnetic interference analysis method and system for digital office equipment. Background Art

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

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

[0004] The present application provides an electromagnetic interference analysis method and system for digital office equipment to solve the above-mentioned problems.

[0005] In a first aspect, the present application provides an electromagnetic interference analysis method for digital office equipment, the method comprising: Acquire equipment operation information; analyze the equipment operation information to determine an operation mode; and determine an operation result according to the operation mode; Acquiring operation electromagnetic data; analyzing the operation electromagnetic data to determine spectrum changes; The change time is determined according to the frequency spectrum change, and the operation result is analyzed according to the change time to determine whether there is electromagnetic interference.

[0006] Through this solution, the real-time operating status of the equipment is collected to provide basic data for subsequent analysis, which helps to identify the behavior of the equipment under normal operating conditions. Identifying the current working status of the equipment makes interference analysis more targeted and accurate. By comparing the expected results with the actual results under different operating modes, it is easier to find anomalies and provide a basis for judging whether interference exists. Real-time monitoring of the electromagnetic signals emitted and received by the equipment provides raw data for spectrum analysis. Through spectrum analysis, abnormal changes in electromagnetic signals can be identified. Determining the specific time point when the interference occurs helps to track the interference source and interference events, and provides a time reference for subsequent interference analysis. By analyzing the operating results at a specific time point, it can be determined whether the interference has affected the normal function of the equipment and the extent of the impact. Based on the previous analysis, it is finally determined whether the equipment has been subjected to electromagnetic interference, which provides a decision-making basis for taking measures to reduce or eliminate interference.

[0007] Optionally, analyzing the operating electromagnetic data to determine spectrum changes includes: Analyze the operation electromagnetic data to determine the real-time environmental electromagnetic; Separate the spectrum of the real-time environmental electromagnetic to obtain environmental spectrum changes; Get the device's established electromagnetics; Determining the real-time operating impact of the environment on the device during the operation of the device according to the environmental spectrum change; Determine the real-time device electromagnetic during 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 device spectrum changes; The environment spectrum change and the device spectrum change are determined as the spectrum change.

[0008] Through this solution, the electromagnetic background of the environment where the equipment is located is identified and quantified. By real-time monitoring of the environmental electromagnetic field, it is helpful to distinguish the electromagnetic radiation generated by the equipment itself from the environmental electromagnetic interference. Spectral separation can reveal the composition of the environmental electromagnetic field, including electromagnetic interference sources of different frequencies. It helps to analyze the characteristics of environmental electromagnetic interference and provide a basis for subsequent interference source identification. The established electromagnetic data of the equipment is the electromagnetic radiation data obtained under the conditions of no interference or minimal interference, which provides a reference standard for analyzing the electromagnetic characteristics of the equipment under normal working conditions. It can reveal the specific effects of environmental electromagnetic interference on the frequency offset, amplitude change and other specific effects of the equipment's operating state, thereby providing a basis for adjusting the electromagnetic radiation of the real-time equipment. Combining the effects of environmental electromagnetic interference and the established electromagnetic data of the equipment, the electromagnetic radiation of the equipment in the real-time environment can be more accurately determined, which helps to identify electromagnetic interference. Spectral separation can reveal the electromagnetic radiation spectrum of the equipment 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 changes in the environmental spectrum and the changes in the equipment spectrum, the total spectrum changes can be determined, which helps to comprehensively evaluate the impact of electromagnetic interference on equipment performance and provide guidance for subsequent interference suppression and electromagnetic compatibility design.

[0009] Optionally, analyzing the operation result according to the change time to determine whether electromagnetic interference exists includes: Determine the time series when the waveform changes according to the change time; Analyze the operation results to determine the output content corresponding to the time series; Analyzing the output content to determine content integrity; Whether electromagnetic interference exists is determined based on the content integrity.

[0010] Through this solution, determine the time when key events or anomalies occur during the operation of the equipment, providing a time reference for subsequent analysis. Identify abnormal situations that may occur during the operation of the equipment. Identify the output characteristics of the equipment at a specific time point. Determine whether the output content of the equipment is affected by electromagnetic interference. Determine the presence or absence of electromagnetic interference and evaluate the degree of impact of electromagnetic interference on the operation of the equipment.

[0011] Optionally, analyzing the operation result according to the change time to determine whether electromagnetic interference exists includes: Determine the running node according to the change time; Analyze the operation nodes and determine the operation logic; Determine whether electromagnetic interference exists according to the operation logic and the operation result.

[0012] Through this solution, real-time monitoring is used to record the key time points in the operation of the equipment. Identifying the key nodes in the operation of the equipment helps to analyze the behavior and status of the equipment at these time points. Collecting the output results of the equipment at each operation node provides a data basis for analyzing equipment performance and detecting electromagnetic interference.

[0013] Optionally, determining whether electromagnetic interference exists according to the operation logic and the operation result includes: Based on the operation logic, analyzing the operation result, and determining the response speed of the operation node; Determine the response delay duration according to the response speed; Comparing the response delay time with a preset delay threshold to obtain a comparison result; According to the comparison result, if the response delay time is greater than the preset delay threshold, it is determined that electromagnetic interference exists.

[0014] Through this solution, the expected behavior of the device at key nodes is analyzed to provide a basis for judging whether the actual operation results meet expectations. The response speed of the device is calculated to help determine whether the device can respond to external changes in a timely manner. The response delay of the device is quantified to provide a quantitative indicator for judging whether there is electromagnetic interference. It provides a standard for judging whether the device response is normal. Exceeding the preset delay threshold indicates the presence of electromagnetic interference. By comparison, it can be directly judged whether the response delay of the device exceeds the normal range. According to the comparison result of the response delay time and the preset delay threshold, it is determined whether the device is subject to electromagnetic interference.

[0015] Optionally, before obtaining the device operation information, the step further includes: Obtain device information; analyze the device information to determine device application scenarios and device application conditions; Determine the electromagnetic interference scenario according to the device application scenario and the device application condition; Analyze the electromagnetic interference scenario and determine the interference test plan; Testing the device according to the device information and the interference test plan to determine whether the device is qualified; The obtaining of equipment operation information includes: If the device is determined to be qualified, the device operation information is obtained.

[0016] Through this plan, the focus and purpose of the research are clarified. Create a test environment that simulates actual working conditions to ensure the validity and reliability of the test results. By installing equipment such as sensors and data acquisition cards, electromagnetic data during the operation of the equipment can be captured in real time. Ensure that the monitoring equipment can accurately measure the electromagnetic field and 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 requirements of the analysis. Start the equipment and set the working mode so that the equipment is in a stable working state for data collection. Verify the working status of the equipment and the functions of the data acquisition system through preliminary tests to ensure that reliable data can be obtained in formal tests. Ensure that there is enough storage space and recording equipment to save the collected data and 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.

[0017] Optionally, analyzing the electromagnetic interference scenario and determining an interference test scheme includes: Analyze the electromagnetic interference scenario to determine the operating status of several devices and several interfering devices; Analyze the several interference devices and determine the interference operation form; 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; The interference test plan is determined according to the interference operation form and the electromagnetic change.

[0018] Through this solution, the source of electromagnetic interference can be identified, providing targeted targets for subsequent interference analysis and testing. Analyzing how interference signals propagate can help design effective interference suppression measures and test methods. Evaluating the frequency range and equipment range that interference may affect can provide a basis for the formulation of test plans. By collecting electromagnetic data in the actual environment, a real data basis can be provided for interference analysis and testing. Simulating the generation and propagation of interference signals through models can help predict and evaluate the impact of interference. Analyzing the sensitivity of the equipment to interference can provide a reference for determining the focus and test conditions of the test. Designing test scenarios based on the analysis results can ensure that the test can cover the interference conditions that may be encountered in actual use. Selecting appropriate test equipment and instruments according to test requirements can ensure the accuracy and efficiency of the test. Formulating detailed test steps and processes can ensure the standardization and repeatability of the test. Verifying the performance of the test plan and equipment through preliminary tests can provide a basis for adjustment for formal tests. Adjusting the test plan based on the results of preliminary tests can improve the pertinence and effectiveness of the test. Collecting data through actual tests can provide empirical evidence for the analysis and evaluation of electromagnetic interference. Analyzing the test results, identifying interference characteristics, and 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.

[0019] Optionally, testing the device according to the device information and the interference test scheme to determine whether the device is qualified includes: According to the interference test scheme, an interference simulation test is performed on the device, and a simulation test result is obtained; Determine a qualified state in each electromagnetic interference scenario according to the device information; Compare each simulation test result with the corresponding qualified state to obtain a comparison result; According to the comparison result, determine whether the equipment is qualified.

[0020] Through this solution, we ensure that all equipment and resources required for the test are ready to ensure the smooth progress of the test. Set the equipment to a specific test state to simulate actual use conditions and improve the reliability of the test results. Control the electromagnetic background and other conditions of the test environment to ensure the consistency and repeatability of the test results. Collect electromagnetic data during the operation of the equipment to provide a data basis for subsequent spectrum analysis and interference evaluation. By separating the spectrum of environmental electromagnetic data, the electromagnetic interference characteristics in the environment are revealed, providing a reference for equipment interference analysis. Evaluate the impact of the environment on equipment operation to help understand the interference that the equipment may encounter in actual use. Collect the electromagnetic data of the equipment itself to provide a direct basis for equipment interference analysis and spectrum changes. By separating the spectrum of equipment electromagnetic data, analyze the electromagnetic characteristics of the equipment itself and identify potential sources of electromagnetic interference. Compare the changes in the environmental spectrum with the changes in the equipment spectrum to determine whether the equipment is affected by the environmental electromagnetic interference. By analyzing the test results, evaluate the electromagnetic compatibility of the equipment and provide a basis for determining the qualification of the equipment. Determine whether the equipment is qualified based on the electromagnetic compatibility standards and test results.

[0021] Optionally, determining the real-time device electromagnetic during 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 currently operating as a single module; If it is not a single module running, get the module information; Analyze the module information to determine the module impact during operation; The real-time device electromagnetic during operation is determined according to the real-time operation impact, the module impact and the set electromagnetic of the device.

[0022] Through this solution, real-time environmental electromagnetic data is obtained during the operation of the equipment, providing a basis for analyzing the impact of the environment on the equipment. Analyze the impact of environmental electromagnetics on equipment operation and identify the characteristics and strength of environmental electromagnetic interference. Extract the electromagnetic characteristics of the equipment from the established electromagnetic data of the equipment to provide a reference for real-time equipment electromagnetic 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 operating state to simulate the actual operating environment. Analyze the real-time equipment electromagnetic signal, evaluate the electromagnetic compatibility of the equipment, and identify potential sources of electromagnetic interference. Through spectrum separation, analyze the changes in different frequency components, identify the characteristics of electromagnetic interference and the electromagnetic characteristics of the equipment itself. Identify the interference characteristics in the real-time equipment electromagnetic signal and the electromagnetic characteristics of the equipment itself, and provide a basis for improving electromagnetic compatibility. According to the analysis results of the real-time equipment electromagnetic signal, evaluate the electromagnetic compatibility of the equipment in the current operating state, and provide guidance for equipment improvement.

[0023] In a second aspect, the present application provides an electromagnetic interference analysis system for digital office equipment, the system comprising: An information analysis module, used to obtain equipment operation information; analyze the equipment operation information to determine an operation mode; and determine an operation result according to the operation mode; A spectrum analysis module, used to obtain operation electromagnetic data; analyze the operation electromagnetic data to determine spectrum changes; The interference analysis module is used to determine the change time according to the frequency spectrum change, and analyze the operation result according to the change time to determine whether electromagnetic interference exists.

[0024] Optionally, when the spectrum analysis module analyzes the operating electromagnetic data and determines the spectrum change, it is used to: Analyze the operation electromagnetic data to determine the real-time environmental electromagnetic; Separate the spectrum of the real-time environmental electromagnetic to obtain environmental spectrum changes; Get the device's established electromagnetics; Determining the real-time operating impact of the environment on the device during the operation of the device according to the environmental spectrum change; Determine the real-time device electromagnetic during 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 device spectrum changes; The environment spectrum change and the device spectrum change are determined as the spectrum change.

[0025] Optionally, when the interference analysis module analyzes the operation result according to the change time to determine whether electromagnetic interference exists, it is used to: Determine the time series when the waveform changes according to the change time; Analyze the operation results to determine the output content corresponding to the time series; Analyzing the output content to determine content integrity; Whether electromagnetic interference exists is determined based on the content integrity.

[0026] Optionally, when the interference analysis module analyzes the operation result according to the change time to determine whether electromagnetic interference exists, it is used to: Determine the running node according to the change time; Analyze the operation nodes and determine the operation logic; Determine whether electromagnetic interference exists according to the operation logic and the operation result.

[0027] Optionally, when the interference analysis module determines whether electromagnetic interference exists according to the operation logic and the operation result, it is used to: Based on the operation logic, analyzing the operation result, and determining the response speed of the operation node; Determine the response delay duration according to the response speed; Comparing the response delay time with a preset delay threshold to obtain a comparison result; According to the comparison result, if the response delay time is greater than the preset delay threshold, it is determined that electromagnetic interference exists.

[0028] Optionally, the electromagnetic interference analysis system further includes a qualified test module, which is used to: Obtain device information; analyze the device information to determine device application scenarios and device application conditions; Determine the electromagnetic interference scenario according to the device application scenario and the device application condition; Analyze the electromagnetic interference scenario and determine the interference test plan; Testing the device according to the device information and the interference test plan to determine whether the device is qualified; When the information analysis module obtains the equipment operation information, it is used to: If the device is determined to be qualified, the device operation information is obtained.

[0029] Optionally, when the qualified test module analyzes the electromagnetic interference scenario and determines the interference test scheme, it is used to: Analyze the electromagnetic interference scenario to determine the operating status of several devices and several interfering devices; Analyze the several interference devices and determine the interference operation form; 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; The interference test plan is determined according to the interference operation form and the electromagnetic change.

[0030] Optionally, the qualified test module tests the device according to the device information and the interference test scheme to determine whether the device is qualified, and is used to: According to the interference test scheme, an interference simulation test is performed on the device, and a simulation test result is obtained; Determine a qualified state in each electromagnetic interference scenario according to the device information; Compare each simulation test result with the corresponding qualified state to obtain a comparison result; According to the comparison result, determine whether the equipment is qualified.

[0031] 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 to: Analyze the operation mode to determine whether the device is currently operating as a single module; If it is not a single module running, get the module information; Analyze the module information to determine the module impact during operation; The real-time device electromagnetic during operation is determined according to the real-time operation impact, the module impact and the set electromagnetic of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0033] Figure 1 A schematic diagram of an application scenario provided for an embodiment of the present application; Figure 2 A flowchart of an electromagnetic interference analysis method for digital office equipment provided in one embodiment of the present application; Figure 3 A schematic diagram of the structure of an electromagnetic interference analysis system for digital office equipment provided in one embodiment of the present application. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0035] In addition, the term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article, unless otherwise specified, generally means that the associated objects before and after are in an "or" relationship.

[0036] The embodiments of the present application are further described in detail below in conjunction with the drawings in the specification.

[0037] With the widespread application of these devices, the electromagnetic interference (EMI) problem they generate has become increasingly prominent, posing a potential impact on the normal operation of surrounding equipment and system stability.

[0038] Electromagnetic interference may not only affect the functional performance of the equipment, but may also cause system failure, data loss, and even affect the safety of the equipment. Therefore, how to effectively analyze and identify the electromagnetic interference problems of digital office equipment has become one of the key technical challenges in the design, production and use of electronic equipment.

[0039] Based on this, the present application provides an electromagnetic interference analysis method and system for digital office equipment, which obtains equipment operation information; analyzes the equipment operation information to determine the operation mode; determines the operation result according to the operation mode; obtains operation electromagnetic data; analyzes the operation electromagnetic data to determine the spectrum change; determines the change time according to the spectrum change, and analyzes the operation result according to the change time to determine whether electromagnetic interference exists. The real-time operation status of the equipment is collected to provide basic data for subsequent analysis, which helps to identify the behavior of the equipment under normal operating conditions. The current working status of the equipment is identified, making the interference analysis more targeted and accurate. By comparing the expected results with the actual results under different operation modes, it is easier to find anomalies and provide a basis for judging whether there is interference. The electromagnetic signals emitted and received by the equipment are monitored in real time to provide raw data for spectrum analysis. Through spectrum analysis, abnormal changes in electromagnetic signals can be identified. Determining the specific time point when the interference occurs helps to track the interference source and interference event, and provides 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 equipment and the extent of the impact. Based on the previous analysis, it is finally determined whether the equipment is affected by electromagnetic interference, providing a decision-making basis for taking measures to reduce or eliminate the interference.

[0040] Figure 1A schematic diagram of an application scenario provided by the present application is used when measuring digital office equipment. Specifically, the method provided by the present application is applied to any server, and the server interacts with the device under test and the electromagnetic monitoring device to collect the device operation information of the device under test, provide basic data for subsequent analysis, and help identify the behavior of the device under normal operating conditions. Identify the current working state of the device, so that the interference analysis is more targeted and accurate. By comparing the expected results with the actual results under different operating modes, it is easier to find anomalies and provide a basis for judging whether there is interference. The electromagnetic monitoring device monitors the operating electromagnetic data transmitted and received by the device under test in real time to provide raw data for spectrum analysis. Through spectrum analysis, abnormal changes in electromagnetic signals can be identified. Determining the specific time point when the interference occurs helps to track the interference source and interference events, and provides a time reference for subsequent interference analysis. By analyzing the operating results at a specific time point, it can be determined whether the interference affects the normal function of the device and the extent of the impact. Based on the previous analysis, it is finally determined whether the device is subject to electromagnetic interference, which provides a decision-making basis for taking measures to reduce or eliminate interference.

[0041] For specific implementation methods, please refer to the following embodiments.

[0042] Figure 2 This is a flow chart of an electromagnetic interference analysis method for digital office equipment provided in one embodiment of the present application. The method of this embodiment can be applied to the server in the above scenario. Figure 2 As shown, the method includes: S201, acquiring device operation information; analyzing the device operation information to determine an operation mode; and determining an operation result according to the operation mode; Equipment operation information may be data and information reflecting the status, performance, and operation of digital office equipment during operation, such as CPU load, memory usage, hard disk activity, network traffic, temperature, etc.

[0043] The operation mode may be the operating state of the digital office equipment under specific working conditions, such as startup mode, standby mode, normal working mode, energy-saving mode, fault detection mode, etc.

[0044] Operational results can be the output or status of a device after performing a specific operation or task to evaluate device performance and diagnose potential problems.

[0045] Specifically, the operating information of the device under test is collected through sensors, monitoring software or other data collection methods, including but not limited to CPU usage, memory usage, network traffic, temperature and other parameters. The collected operating information is analyzed in real time to identify the current operating mode of the device. According to the operating mode of the device, the corresponding operating results are analyzed.

[0046] S202, acquiring operation electromagnetic data; analyzing the operation electromagnetic data to determine spectrum changes; The operation electromagnetic data may be information related to electromagnetic signals generated during the operation of the digital office equipment.

[0047] Spectrum changes can be changes in electromagnetic data in the frequency domain, which are usually detected by equipment such as spectrum analyzers, including changes in spectrum peaks, bandwidths, harmonic components, etc.

[0048] Specifically, built-in or external electromagnetic monitoring equipment is used to obtain real-time electromagnetic radiation data of the equipment under test during operation. The acquired electromagnetic data is subjected to spectrum analysis, and mathematical processing such as Fourier transform is used to identify changes and anomalies in the spectrum.

[0049] S203: Determine a change time according to the frequency spectrum change, and analyze the operation result according to the change time to determine whether electromagnetic interference exists.

[0050] Electromagnetic interference can be any unwanted electromagnetic energy that may interfere with or damage the normal operation of electronic equipment, including radiated interference and conducted interference.

[0051] Specifically, analyze the time point when the spectrum changes to determine the exact moment when the interference occurs. Combined with the time point of the change, analyze whether the operation results of the equipment are affected by the interference, such as whether there are data errors, slow operation, etc. Based on the above analysis results, determine whether the equipment is affected by electromagnetic interference, as well as the degree and impact of the interference.

[0052] Through this solution, the real-time operating status of the equipment is collected to provide basic data for subsequent analysis, which helps to identify the behavior of the equipment under normal operating conditions. Identifying the current working status of the equipment makes interference analysis more targeted and accurate. By comparing the expected results with the actual results under different operating modes, it is easier to find anomalies and provide a basis for judging whether interference exists. Real-time monitoring of the electromagnetic signals emitted and received by the equipment provides raw data for spectrum analysis. Through spectrum analysis, abnormal changes in electromagnetic signals can be identified. Determining the specific time point when the interference occurs helps to track the interference source and interference events, and provides a time reference for subsequent interference analysis. By analyzing the operating results at a specific time point, it can be determined whether the interference has affected the normal function of the equipment and the extent of the impact. Based on the previous analysis, it is finally determined whether the equipment has been subjected to electromagnetic interference, which provides a decision-making basis for taking measures to reduce or eliminate interference.

[0053] In some embodiments, the operating electromagnetic data is analyzed to determine the real-time environmental electromagnetic; the real-time environmental electromagnetic is spectrally separated to obtain environmental spectrum changes; the device's predetermined electromagnetic is acquired; based on the environmental spectrum changes, the real-time operating impact of the environment on the device during the device's operation is determined; based on the real-time operating impact and the device's predetermined electromagnetic, the real-time device electromagnetic during the operation is determined; and the real-time device electromagnetic is spectrally separated to obtain device spectrum changes; the environmental spectrum changes and the device spectrum changes are determined as the spectrum changes.

[0054] Real-time environmental electromagnetics can be real-time data of electromagnetic fields or electromagnetic radiation in the surrounding environment when digital office equipment is running.

[0055] The electromagnetic radiation level that a device should generate under normal operating conditions is the electromagnetic radiation level that the device should generate according to the device's specifications and design expectations.

[0056] Real-time device electromagnetics can be real-time data of electromagnetic radiation actually generated by digital office equipment during operation.

[0057] Environmental spectrum changes can be spectrum changes caused by changes in the electromagnetic field in the environment where the device is located over time or under different conditions.

[0058] The device spectrum variation may be a variation in the spectrum of electromagnetic radiation generated by the device in a real-time environment as time or conditions change.

[0059] Specifically, use a high-sensitivity electromagnetic field detection device to monitor the electromagnetic field in the environment where the equipment is located in real time. Through the data acquisition system, synchronously record the intensity and phase information of the environmental electromagnetic field at different frequencies. Perform fast Fourier transform (FFT) or similar spectrum analysis technology on the collected environmental electromagnetic data to obtain the environmental electromagnetic spectrum. Analyze the environmental electromagnetic spectrum to identify and separate the main electromagnetic interference sources in the environment. Continuously monitor the environmental electromagnetic spectrum and record the spectrum changes at different time points. By comparing the spectrum data of different time periods, analyze the change trend and characteristics of the environmental spectrum. Under normal operating conditions of the equipment, use the same electromagnetic monitoring equipment to obtain the electromagnetic radiation data of the equipment. Determine the established electromagnetic of the equipment in the standard working mode, compare the environmental electromagnetic spectrum changes with the equipment electromagnetic radiation baseline, and analyze the impact of environmental changes on the electromagnetic radiation of the equipment. Identify the environmental changes in the actual operation of the equipment, and synchronously collect the electromagnetic radiation data of the equipment. Considering the impact of environmental electromagnetic interference, adjust the collected equipment electromagnetic data to reflect the electromagnetic radiation of the equipment in the real-time environment. The possible impact of environmental electromagnetic interference on the working state of the equipment, perform spectrum analysis on the adjusted real-time equipment electromagnetic data, and obtain its spectrum distribution. Analyze the electromagnetic spectrum of real-time equipment and identify spectrum changes caused by environmental interference. Perform a comprehensive analysis of environmental spectrum changes and real-time equipment spectrum changes to determine the total spectrum changes. Identify the characteristics of electromagnetic interference through comparison and analysis. Based on the results of spectrum change analysis, determine whether electromagnetic interference exists and evaluate the degree of interference. If electromagnetic interference is determined to exist, further analyze the source of the interference and possible impact.

[0060] Through this solution, the electromagnetic background of the environment where the equipment is located is identified and quantified. By real-time monitoring of the environmental electromagnetic field, it is helpful to distinguish the electromagnetic radiation generated by the equipment itself from the environmental electromagnetic interference. Spectral separation can reveal the composition of the environmental electromagnetic field, including electromagnetic interference sources of different frequencies. It helps to analyze the characteristics of environmental electromagnetic interference and provide a basis for subsequent interference source identification. The established electromagnetic data of the equipment is the electromagnetic radiation data obtained under the conditions of no interference or minimal interference, which provides a reference standard for analyzing the electromagnetic characteristics of the equipment under normal working conditions. It can reveal the specific effects of environmental electromagnetic interference on the frequency offset, amplitude change and other specific effects of the equipment's operating state, thereby providing a basis for adjusting the electromagnetic radiation of the real-time equipment. Combining the effects of environmental electromagnetic interference and the established electromagnetic data of the equipment, the electromagnetic radiation of the equipment in the real-time environment can be more accurately determined, which helps to identify electromagnetic interference. Spectral separation can reveal the electromagnetic radiation spectrum of the equipment 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 changes in the environmental spectrum and the changes in the equipment spectrum, the total spectrum changes can be determined, which helps to comprehensively evaluate the impact of electromagnetic interference on equipment performance and provide guidance for subsequent interference suppression and electromagnetic compatibility design.

[0061] In some embodiments, based on the change time, a time series when the waveform changes is determined; the operation results are analyzed to determine the output content corresponding to the time series; the output content is analyzed to determine the content integrity; and based on the content integrity, it is determined whether there is electromagnetic interference.

[0062] A waveform can be a graph of electromagnetic variations over time.

[0063] A time series can be a sequence of data points arranged in the order in which they occurred.

[0064] Specifically, when spectrum analysis detects a spectrum change, the time point at which the change occurs is recorded. The operation result data corresponding to the change time point is extracted from the equipment operation information. The extracted operation result data is checked for data errors or abnormal behaviors. The equipment performance indicators are analyzed to see if there are abnormalities near the change time point. The operation results before and after the change time point are compared to determine whether there is obvious performance degradation or functional failure. Based on the analysis of the operation results, determine whether interference has caused a degradation in equipment performance. Determine whether interference has caused data loss or system failure. Compare the analyzed operation results with the established electromagnetic standards of the equipment to determine whether the operation results meet expectations. Based on the above analysis, determine whether electromagnetic interference does exist at the change time point. If the operation results are abnormal and correspond to the spectrum change time point, electromagnetic interference exists. If the operation results are not abnormal, or the abnormality is not directly related to the spectrum change, electromagnetic interference does not exist.

[0065] Through this solution, determine the time when key events or anomalies occur during the operation of the equipment, providing a time reference for subsequent analysis. Identify abnormal situations that may occur during the operation of the equipment. Identify the output characteristics of the equipment at a specific time point. Determine whether the output content of the equipment is affected by electromagnetic interference. Determine the presence or absence of electromagnetic interference and evaluate the degree of impact of electromagnetic interference on the operation of the equipment.

[0066] In some embodiments, an operation node is determined according to the change time; an operation logic is determined by analyzing the operation node; and whether there is electromagnetic interference is determined according to the operation logic and the operation result.

[0067] The operation node may be a key point where the electromagnetic radiation characteristics change during the operation of the device.

[0068] Operation logic can be the rules and algorithms that the device follows during operation.

[0069] Operational results can be the output or status of a device after evaluating device performance and diagnosing potential problems.

[0070] Specifically, the operation information of the equipment is collected through monitoring. The collected operation information is analyzed to identify the current working status of the equipment. According to the operation mode of the equipment, the performance indicators of the equipment are evaluated to determine the operation results. The electromagnetic signals generated by the equipment are monitored in real time using a spectrum analyzer. Spectrum analysis is performed on the electromagnetic data to identify any abnormal spectrum changes. The time points when the spectrum changes occur are recorded, which are related to electromagnetic interference events. The change time points are synchronized with the equipment operation result data to ensure that the analyzed data are corresponding. The operation results corresponding to the change time points are analyzed to check whether there are abnormal behaviors or performance degradations. The operation results obtained by the analysis are compared with the normal working standards or historical data of the equipment to identify possible interference effects. Based on the spectrum changes, the analysis of the operation results, and the comparison with the normal standards, it is determined whether there is electromagnetic interference.

[0071] Through this solution, real-time monitoring is used to record the key time points in the operation of the equipment. Identifying the key nodes in the operation of the equipment helps to analyze the behavior and status of the equipment at these time points. Collecting the output results of the equipment at each operation node provides a data basis for analyzing equipment performance and detecting electromagnetic interference.

[0072] In some embodiments, based on the operating logic, the operating results are analyzed to determine the response speed of the operating node; based on the response speed, the response delay duration is determined; the response delay duration is compared with a preset delay threshold to obtain a comparison result; based on the comparison result, if the response delay duration is greater than the preset delay threshold, it is determined that electromagnetic interference exists.

[0073] Response speed can be how quickly a device responds to an input signal or command.

[0074] The response delay can be the length of time from the input signal reaching the device to the device generating the output result.

[0075] The preset delay threshold may be a preset time value used to determine whether the response of the device is within an acceptable range.

[0076] Comparative results can be the process or result of drawing conclusions by comparing two or more data sets, performance indicators or parameters.

[0077] Specifically, analyze the expected behavior and logic of the device on the running node to understand how the device should respond at these key time points. Calculate the time interval from the start of the running node to the device generating a response to determine the response speed of the device. Based on the response speed, calculate the duration of the response delay, that is, the difference between the actual response time and the expected response time. The preset delay threshold is used as a criterion for judging whether the device 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.

[0078] Through this solution, the expected behavior of the device at key nodes is analyzed to provide a basis for judging whether the actual operation results meet expectations. The response speed of the device is calculated to help determine whether the device can respond to external changes in a timely manner. The response delay of the device is quantified to provide a quantitative indicator for judging whether there is electromagnetic interference. It provides a standard for judging whether the device response is normal. Exceeding the preset delay threshold indicates the presence of electromagnetic interference. By comparison, it can be directly judged whether the response delay of the device exceeds the normal range. According to the comparison result of the response delay time and the preset delay threshold, it is determined whether the device is subject to electromagnetic interference.

[0079] In some embodiments, device information is obtained; the device information is analyzed to determine device application scenarios and device application conditions; based on the device application scenarios and the device application conditions, an electromagnetic interference scenario is determined; the electromagnetic interference scenario is analyzed to determine an interference test plan; based on the device information and the interference test plan, the device is tested to determine whether the device is qualified; if the device is determined to be qualified, device operation information is obtained.

[0080] Equipment information may be basic data and characteristics about digital office equipment, including equipment model, specifications, working principle, technical parameters, performance indicators, etc.

[0081] Device application scenarios can be the specific environments and situations in which digital office equipment is actually used, describing how the equipment interacts with users and its role in work.

[0082] Equipment application conditions may be the external environment and working conditions in which digital office equipment operates.

[0083] An electromagnetic interference scenario may be a specific environment or situation that may cause or generate electromagnetic interference, including mutual interference between devices, interference from external electromagnetic sources, etc.

[0084] An interference test program 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.

[0085] Specifically, determine the digital office equipment to be analyzed and the types of electromagnetic interference it may be subject to. Place the equipment in a controllable test environment that should be able to simulate actual working conditions. Install necessary monitoring instruments on the equipment to capture electromagnetic data and operating information in real time. Calibrate the monitoring instruments to ensure that the collected data is accurate and reliable. Set up data acquisition for hardware equipment and supporting software to collect and analyze electromagnetic data during equipment operation in real time. Define data acquisition parameters based on analysis objectives. Start the equipment and run it in a stable mode to begin data collection. Before formal data collection, conduct preliminary tests to verify the working status of the equipment and the function of data collection. Prepare equipment for recording and storing collected electromagnetic data and operating information. Ensure that the test process complies with all relevant safety standards and regulatory requirements.

[0086] Through this plan, the focus and purpose of the research are clarified. Create a test environment that simulates actual working conditions to ensure the validity and reliability of the test results. By installing equipment such as sensors and data acquisition cards, electromagnetic data during the operation of the equipment can be captured in real time. Ensure that the monitoring equipment can accurately measure the electromagnetic field and 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 requirements of the analysis. Start the equipment and set the working mode so that the equipment is in a stable working state for data collection. Verify the working status of the equipment and the functions of the data acquisition system through preliminary tests to ensure that reliable data can be obtained in formal tests. Ensure that there is enough storage space and recording equipment to save the collected data and 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.

[0087] In some embodiments, the electromagnetic interference scenario is analyzed to determine the operating states of several devices and several interfering devices; the several interfering devices are analyzed to determine the interference operating form; the operating state of each device and the device information are analyzed to determine the electromagnetic changes in the operating state of each device when there is no electromagnetic interference; and the interference test plan is determined based on the interference operating form and the electromagnetic changes.

[0088] Interference equipment may be other equipment that may cause electromagnetic interference to digital office equipment.

[0089] Electromagnetic changes can be any changes in parameters such as the intensity, frequency, phase, etc. of the electromagnetic field or electromagnetic signal.

[0090] The interference operation form can be the manifestation of electromagnetic interference, including the frequency, intensity, duration of the interference signal and the propagation mode of the interference.

[0091] Specifically, investigate and identify the sources that may cause electromagnetic interference, including potential interference sources inside and outside the equipment. Study how interference signals propagate from interference sources to sensitive equipment, including through space radiation, conductor coupling, etc. Evaluate the frequency range and operating range of the equipment that may be affected by interference signals. Collect electromagnetic data of the equipment in different working modes and environments, including interference signals and environmental electromagnetic background. Based on the collected data, establish a mathematical model of electromagnetic interference to simulate the generation and propagation of interference signals. Through testing or simulation, evaluate the sensitivity of the equipment to electromagnetic interference and determine which components or functions are most susceptible to interference. Based on the analysis results, design a series of interference test scenarios to simulate the interference conditions 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 test steps, parameter settings, data acquisition and processing methods. Before the formal test, conduct preliminary tests to verify the feasibility of the test procedure and the accuracy of the test equipment. Based on the results of the preliminary test, adjust and optimize the test plan to ensure that the test can effectively evaluate electromagnetic interference. According to the final test plan, implement interference testing and record test data and observed phenomena. Analyze the test results to determine the characteristics and impact of electromagnetic interference and the response of the equipment to interference. Based on the test results and analysis, put forward suggestions and measures to improve the electromagnetic compatibility of the equipment.

[0092] Through this solution, the source of electromagnetic interference can be identified, providing targeted targets for subsequent interference analysis and testing. Analyzing how interference signals propagate can help design effective interference suppression measures and test methods. Evaluating the frequency range and equipment range that interference may affect can provide a basis for the formulation of test plans. By collecting electromagnetic data in the actual environment, a real data basis can be provided for interference analysis and testing. Simulating the generation and propagation of interference signals through models can help predict and evaluate the impact of interference. Analyzing the sensitivity of the equipment to interference can provide a reference for determining the focus and test conditions of the test. Designing test scenarios based on the analysis results can ensure that the test can cover the interference conditions that may be encountered in actual use. Selecting appropriate test equipment and instruments according to test requirements can ensure the accuracy and efficiency of the test. Formulating detailed test steps and processes can ensure the standardization and repeatability of the test. Verifying the performance of the test plan and equipment through preliminary tests can provide a basis for adjustment for formal tests. Adjusting the test plan based on the results of preliminary tests can improve the pertinence and effectiveness of the test. Collecting data through actual tests can provide empirical evidence for the analysis and evaluation of electromagnetic interference. Analyzing the test results, identifying interference characteristics, and 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.

[0093] In some embodiments, according to the interference test scheme, an interference simulation test is performed on the device, and a simulation test result is obtained; according to the device information, a qualified state in each electromagnetic interference scenario is determined; each simulation test result is compared with the corresponding qualified state to obtain a comparison result; and according to the comparison result, whether the device is qualified is determined.

[0094] 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 environmental electromagnetic background data in real time. Perform spectrum separation on the collected real-time environmental electromagnetic data and analyze the changes in the environmental spectrum. According to the changes in the environmental spectrum, 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 equipment electromagnetic data and analyze the changes in the equipment spectrum. Compare the changes in the environmental spectrum and the changes in the equipment spectrum to determine the real-time interference impact on the equipment. Analyze the test results such as the spectrum diagram and time series data to determine whether the equipment is subject to electromagnetic interference. According to the qualified standards defined in the interference test plan, judge whether the equipment meets the electromagnetic compatibility requirements.

[0095] Through this solution, we ensure that all equipment and resources required for the test are ready to ensure the smooth progress of the test. Set the equipment to a specific test state to simulate actual use conditions and improve the reliability of the test results. Control the electromagnetic background and other conditions of the test environment to ensure the consistency and repeatability of the test results. Collect electromagnetic data during the operation of the equipment to provide a data basis for subsequent spectrum analysis and interference evaluation. By separating the spectrum of environmental electromagnetic data, the electromagnetic interference characteristics in the environment are revealed, providing a reference for equipment interference analysis. Evaluate the impact of the environment on equipment operation to help understand the interference that the equipment may encounter in actual use. Collect the electromagnetic data of the equipment itself to provide a direct basis for equipment interference analysis and spectrum changes. By separating the spectrum of equipment electromagnetic data, analyze the electromagnetic characteristics of the equipment itself and identify potential sources of electromagnetic interference. Compare the changes in the environmental spectrum with the changes in the equipment spectrum to determine whether the equipment is affected by the environmental electromagnetic interference. By analyzing the test results, evaluate the electromagnetic compatibility of the equipment and provide a basis for determining the qualification of the equipment. Determine whether the equipment is qualified based on the electromagnetic compatibility standards and test results.

[0096] In some embodiments, the operating mode is analyzed to determine whether the device is currently operating as a single module; if it is not operating as a single module, the module information is obtained; the module information is analyzed to determine the module impact during the operation process; and the real-time device electromagnetic during the operation process is determined based on the real-time operating impact, the module impact and the established electromagnetic of the device.

[0097] Single module operation means that only one module (or functional unit) in the device is working, while other modules are in shutdown or standby state.

[0098] The device's established electromagnetic signal can be the electromagnetic signal generated by the device under standard working conditions, and is usually used as a reference signal when analyzing electromagnetic interference.

[0099] Specifically, electromagnetic field probes, spectrum analyzers and other equipment are used to collect electromagnetic data of the equipment in real time during operation. Real-time environmental electromagnetic data is analyzed to determine the degree and characteristics of environmental electromagnetic influence on equipment operation. Electromagnetic characteristics such as spectrum characteristics and signal strength of the equipment are extracted from the established electromagnetic data of the equipment. The real-time electromagnetic signal of the equipment in the current operating state is synthesized by combining the environmental electromagnetic influence and the established electromagnetic characteristics of the equipment. The synthesized real-time equipment electromagnetic signal such as spectrum analysis and time series analysis is analyzed to identify the electromagnetic characteristics of the equipment. The real-time equipment electromagnetic signal is spectrally separated to analyze the changes and interference characteristics of different frequency components. Through spectrum separation and analysis, the interference characteristics in the real-time equipment electromagnetic signal and the electromagnetic characteristics of the equipment itself are identified. Based on the analysis results of the real-time equipment electromagnetic signal, the electromagnetic compatibility of the equipment in the current operating state is evaluated.

[0100] Through this solution, real-time environmental electromagnetic data is obtained during the operation of the equipment, providing a basis for analyzing the impact of the environment on the equipment. Analyze the impact of environmental electromagnetics on equipment operation and identify the characteristics and strength of environmental electromagnetic interference. Extract the electromagnetic characteristics of the equipment from the established electromagnetic data of the equipment to provide a reference for real-time equipment electromagnetic 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 operating state to simulate the actual operating environment. Analyze the real-time equipment electromagnetic signal, evaluate the electromagnetic compatibility of the equipment, and identify potential sources of electromagnetic interference. Through spectrum separation, analyze the changes in different frequency components, identify the characteristics of electromagnetic interference and the electromagnetic characteristics of the equipment itself. Identify the interference characteristics in the real-time equipment electromagnetic signal and the electromagnetic characteristics of the equipment itself, and provide a basis for improving electromagnetic compatibility. According to the analysis results of the real-time equipment electromagnetic signal, evaluate the electromagnetic compatibility of the equipment in the current operating state, and provide guidance for equipment improvement.

[0101] Figure 3 A schematic diagram of the structure of an electromagnetic interference analysis system for digital office equipment provided in one embodiment of the present application is shown in FIG. Figure 3 As shown, the electromagnetic interference analysis system 300 of digital office equipment in this embodiment includes: an information analysis module 301 , a spectrum analysis module 302 , and an interference analysis module 303 .

[0102] The information analysis module 301 is used to obtain equipment operation information; analyze the equipment operation information to determine the operation mode; and determine the operation result according to the operation mode; The spectrum analysis module 302 is used to obtain operation electromagnetic data; analyze the operation electromagnetic data to determine spectrum changes; The interference analysis module 303 is used to determine the change time according to the frequency spectrum change, and analyze the operation result according to the change time to determine whether electromagnetic interference exists.

[0103] Optionally, when the spectrum analysis module 302 analyzes the operation electromagnetic data and determines the spectrum change, it is used to: Analyze the operation electromagnetic data to determine the real-time environmental electromagnetic; Separate the spectrum of the real-time environmental electromagnetic to obtain environmental spectrum changes; Get the device's established electromagnetics; Determining the real-time operating impact of the environment on the device during the operation of the device according to the environmental spectrum change; Determine the real-time device electromagnetic during 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 device spectrum changes; The environment spectrum change and the device spectrum change are determined as the spectrum change.

[0104] Optionally, when the interference analysis module 303 analyzes the operation result according to the change time to determine whether electromagnetic interference exists, it is used to: Determine the time series when the waveform changes according to the change time; Analyze the operation results to determine the output content corresponding to the time series; Analyzing the output content to determine content integrity; Whether electromagnetic interference exists is determined based on the content integrity.

[0105] Optionally, when the interference analysis module 303 analyzes the operation result according to the change time to determine whether electromagnetic interference exists, it is used to: Determine the running node according to the change time; Analyze the operation nodes and determine the operation logic; Determine whether electromagnetic interference exists according to the operation logic and the operation result.

[0106] Optionally, when the interference analysis module 303 determines whether electromagnetic interference exists according to the operation logic and the operation result, it is used to: Based on the operation logic, analyzing the operation result, and determining the response speed of the operation node; Determine the response delay duration according to the response speed; Comparing the response delay time with a preset delay threshold to obtain a comparison result; According to the comparison result, if the response delay time is greater than the preset delay threshold, it is determined that electromagnetic interference exists.

[0107] Optionally, the electromagnetic interference analysis system 300 further includes a qualified test module 304, which is used to: Obtain device information; analyze the device information to determine device application scenarios and device application conditions; Determine the electromagnetic interference scenario according to the device application scenario and the device application condition; Analyze the electromagnetic interference scenario and determine the interference test plan; Testing the device according to the device information and the interference test plan to determine whether the device is qualified; When the information analysis module obtains the equipment operation information, it is used to: If the device is determined to be qualified, the device operation information is obtained.

[0108] Optionally, when the qualified test module 304 analyzes the electromagnetic interference scenario and determines the interference test scheme, it is used to: Analyze the electromagnetic interference scenario to determine the operating status of several devices and several interfering devices; Analyze the several interference devices and determine the interference operation form; 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; The interference test plan is determined according to the interference operation form and the electromagnetic change.

[0109] Optionally, the qualified test module 304 tests the device according to the device information and the interference test scheme to determine whether the device is qualified, and is used to: According to the interference test scheme, an interference simulation test is performed on the device, and a simulation test result is obtained; Determine a qualified state in each electromagnetic interference scenario according to the device information; Compare each simulation test result with the corresponding qualified state to obtain a comparison result; According to the comparison result, determine whether the equipment is qualified.

[0110] 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 electromagnetic of the device, it is used to: Analyze the operation mode to determine whether the device is currently operating as a single module; If it is not a single module running, get the module information; Analyze the module information to determine the module impact during operation; The real-time device electromagnetic during operation is determined according to the real-time operation impact, the module impact and the set electromagnetic of the device.

[0111] The system of this embodiment can be used to execute the method of any of the above embodiments. The implementation principles and technical effects are similar and will not be described in detail here.

Claims

1. A method for analyzing electromagnetic interference of digital office equipment, characterized in that: include: Get equipment operation information; Analyze the equipment operation information and determine the operation mode; Determine an operation result according to the operation mode; Acquire operational electromagnetic data; Analyzing the operating electromagnetic data to determine spectrum changes; The change time is determined according to the frequency spectrum change, and the operation result is analyzed according to the change time to determine whether there is electromagnetic interference.

2. The method according to claim 1, characterized in that The step of analyzing the operating electromagnetic data to determine spectrum changes includes: Analyze the operation electromagnetic data to determine the real-time environmental electromagnetic; Separate the spectrum of the real-time environmental electromagnetic to obtain environmental spectrum changes; Get the device's established electromagnetics; Determining the real-time operating impact of the environment on the device during the operation of the device according to the environmental spectrum change; Determine the real-time device electromagnetic during 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 device spectrum changes; The environment spectrum change and the device spectrum change are determined as the spectrum change.

3. The method according to claim 1, characterized in that: 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 results to determine the output content corresponding to the time series; Analyzing the output content to determine content integrity; Whether electromagnetic interference exists is determined based on the content integrity.

4. The method according to claim 1, characterized in that: Analyzing the operation result according to the change time to determine whether there is electromagnetic interference includes: Determine the running node according to the change time; Analyze the operation nodes and determine the operation logic; Determine whether electromagnetic interference exists according to the operation logic and the operation result.

5. The method according to claim 4, characterized in that The determining whether there is electromagnetic interference according to the operation logic and the operation result includes: Based on the operation logic, analyzing the operation result, and determining the response speed of the operation node; Determine the response delay duration according to the response speed; Comparing the response delay time with a preset delay threshold to obtain a comparison result; According to the comparison result, if the response delay time is greater than the preset delay threshold, it is determined that electromagnetic interference exists.

6. The method according to claim 1, characterized in that Before obtaining the device operation information, the method further includes: Obtain device information; analyze the device information to determine device application scenarios and device application conditions; Determine the electromagnetic interference scenario according to the device application scenario and the device application condition; Analyze the electromagnetic interference scenario and determine the interference test plan; Testing the device according to the device information and the interference test plan to determine whether the device is qualified; The obtaining of equipment operation information includes: If the device is determined to be qualified, the device operation information is obtained.

7. The method according to claim 6, characterized in that The analyzing the electromagnetic interference scenario and determining the interference test scheme includes: Analyze the electromagnetic interference scenario to determine the operating status of several devices and several interfering devices; Analyze the several interference devices and determine the interference operation form; 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; The interference test plan is determined according to the interference operation form and the electromagnetic change.

8. The method according to claim 6, characterized in that The step of testing the device according to the device information and the interference test scheme to determine whether the device is qualified includes: According to the interference test scheme, an interference simulation test is performed on the device, and a simulation test result is obtained; Determine a qualified state in each electromagnetic interference scenario according to the device information; Compare each simulation test result with the corresponding qualified state to obtain a comparison result; According to the comparison result, determine whether the equipment is qualified.

9. The method according to claim 2, characterized in that: Determining the real-time device electromagnetic during operation according to the real-time operation impact and the set electromagnetic of the device includes: Analyze the operation mode to determine whether the device is currently operating as a single module; If it is not a single module running, get the module information; Analyze the module information to determine the module impact during operation; The real-time device electromagnetic during operation is determined according to the real-time operation impact, the module impact and the set electromagnetic of the device.

10. An electromagnetic interference analysis system for digital office equipment, characterized in that: The method as claimed in any one of claims 1 to 9 comprises: An information analysis module, used to obtain equipment operation information; analyze the equipment operation information to determine an operation mode; and determine an operation result according to the operation mode; A spectrum analysis module, used to obtain operation electromagnetic data; analyze the operation electromagnetic data to determine spectrum changes; The interference analysis module is used to determine the change time according to the frequency spectrum change, and analyze the operation result according to the change time to determine whether electromagnetic interference exists.

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