Electromagnetic compatibility test data processing method and system based on Internet of Things

Abstract

The invention provides an electromagnetic compatibility test data processing method and system based on the Internet of Things, and relates to the technical field of electromagnetic compatibility test data processing. The method comprises the following steps: acquiring electromagnetic compatibility test data of the electromagnetic range; analyzing electromagnetic compatibility test data of the electromagnetic range; and the electromagnetic compatibility test accuracy of the electromagnetic range is comprehensively analyzed, optimized and adjusted. By collecting and processing electromagnetic compatibility test data of the electromagnetic range, the electromagnetic compatibility test data of the electromagnetic range is analyzed, the electromagnetic compatibility test accuracy evaluation index of the electromagnetic range is obtained through comprehensive analysis, and the electromagnetic compatibility test accuracy of the electromagnetic range is optimized and adjusted; the accuracy of the electromagnetic compatibility test data processing method based on the Internet of Things is improved, and the problem that the accuracy of the electromagnetic compatibility test data processing method based on the Internet of Things is insufficient in the prior art is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of electromagnetic compatibility test data processing, and in particular to an electromagnetic compatibility test data processing method and system based on the Internet of Things. Background Art

[0002] With the rapid development of electronic technology, the electromagnetic environment has become increasingly complex, and electromagnetic compatibility issues have continued to emerge. Electromagnetic compatibility is a key indicator for evaluating the ability of electronic equipment to work normally in an electromagnetic environment. It includes two parts: electromagnetic interference and electromagnetic sensitivity, which are intended to evaluate the electromagnetic interference generated by equipment or systems during normal operation and their immunity to electromagnetic interference in the environment. With the rapid development of scientific and technological information, the application of electronic technology and computer technology has become more and more extensive, the number of electrical and electronic equipment used in a system has greatly increased, the frequency band of electronic equipment has also become increasingly widened, the power has gradually increased, the sensitivity has increased, and the cable network used to connect various devices has become increasingly complex. The electromagnetic compatibility of the system is very important.

[0003] In the existing electromagnetic compatibility test data processing methods based on the Internet of Things, the electromagnetic compatibility and interference coordination problems in the Internet of Things are studied through actual spectrum measurement and system simulation methods; through the electromagnetic compatibility and anti-interference of the wireless Internet of Things, the causes of interference and anti-interference measures are analyzed, and the efficiency comparison of communication anti-interference technology and anti-interference evaluation methods are studied; through the wireless terminal electromagnetic compatibility performance test platform, a wireless terminal electromagnetic compatibility performance test platform is built in the mobile network and Internet of Things environment to evaluate the electromagnetic compatibility performance of wireless terminal equipment.

[0004] However, in the process of implementing the technical solution of the present invention, the present invention finds that the above technology has at least the following technical problems:

[0005] There is a problem of insufficient accuracy assessment in the electromagnetic compatibility test data processing in the induction cooker application scenario. The induction cooker is subject to external electromagnetic interference during operation, which causes signal fluctuations in the internal circuit and affects the normal operation of the induction cooker. There is a problem of insufficient accuracy in the electromagnetic compatibility test data processing method based on the Internet of Things. Summary of the invention

[0006] The embodiments of the present invention provide an electromagnetic compatibility test data processing method and system based on the Internet of Things, thereby solving the problem of insufficient accuracy of the electromagnetic compatibility test data processing method based on the Internet of Things in the prior art and improving the accuracy of the electromagnetic compatibility test data processing method based on the Internet of Things.

[0007] In order to solve the above-mentioned invention object, the technical solution provided by the present invention is as follows:

[0008] An electromagnetic compatibility test data processing method and system based on the Internet of Things, comprising the following steps: collecting and processing electromagnetic compatibility test data of an electromagnetic cooker; analyzing the electromagnetic compatibility test data of the electromagnetic cooker to obtain an electromagnetic compatibility test anti-interference evaluation index of the electromagnetic cooker and an electromagnetic compatibility test signal volatility evaluation index of the electromagnetic cooker; comprehensively analyzing to obtain an electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker; comparing and analyzing the electromagnetic compatibility test anti-interference evaluation index of the electromagnetic cooker with a first threshold of the electromagnetic compatibility test anti-interference evaluation index of the electromagnetic cooker, and optimizing and adjusting the electromagnetic compatibility test anti-interference ability of the electromagnetic cooker; comparing and analyzing the electromagnetic compatibility test signal volatility evaluation index of the electromagnetic cooker with a second threshold of the electromagnetic compatibility test signal volatility evaluation index of the electromagnetic cooker, and optimizing and adjusting the electromagnetic compatibility test signal fluctuation of the electromagnetic cooker; comparing and analyzing the electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker with a comprehensive threshold of the electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker, and optimizing and adjusting the electromagnetic compatibility test accuracy of the electromagnetic cooker.

[0009] Optionally, the specific steps of collecting and processing the electromagnetic compatibility test data of the electromagnetic cooker are: collecting the original electromagnetic compatibility test data of the electromagnetic cooker through a sensor device; cleaning and denoising the original electromagnetic compatibility test data of the electromagnetic cooker to obtain the electromagnetic compatibility test data of the electromagnetic cooker, and the electromagnetic compatibility test data of the electromagnetic cooker includes the electromagnetic compatibility test anti-interference data of the electromagnetic cooker and the electromagnetic compatibility test signal volatility data of the electromagnetic cooker.

[0010] Optionally, the specific steps of obtaining the electromagnetic cooker electromagnetic compatibility test anti-interference evaluation index are: recording the electromagnetic cooker electromagnetic compatibility test anti-interference detection time as the first preset time electromagnetic cooker electromagnetic compatibility test anti-interference detection point; obtaining the power supply voltage fluctuation of the electromagnetic cooker electromagnetic compatibility test anti-interference detection point at the first preset time through the EMC test equipment; obtaining the filter cutoff frequency of the electromagnetic cooker electromagnetic compatibility test anti-interference detection point at the first preset time through the spectrum analyzer; obtaining the temperature of the electromagnetic cooker electromagnetic compatibility test anti-interference detection point at the first preset time through the temperature sensor; obtaining the humidity of the electromagnetic cooker electromagnetic compatibility test anti-interference detection point at the first preset time through the humidity sensor; obtaining the electromagnetic interference intensity of the electromagnetic cooker electromagnetic compatibility test anti-interference detection point at the first preset time through the current probe; obtaining the signal power of the electromagnetic cooker electromagnetic compatibility test anti-interference detection point at the first preset time through the spectrum analyzer; obtaining the noise power of the electromagnetic cooker electromagnetic compatibility test anti-interference detection point at the first preset time through the spectrum analyzer; the electromagnetic cooker electromagnetic compatibility test anti-interference data includes power supply voltage fluctuation, filter cutoff frequency, temperature, humidity, electromagnetic interference intensity, signal power and noise power; and obtaining the electromagnetic cooker electromagnetic compatibility test anti-interference evaluation index according to the electromagnetic cooker electromagnetic compatibility test anti-interference data analysis.

[0011] Optionally, the specific steps of obtaining the electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index are: recording the electromagnetic cooker electromagnetic compatibility test signal volatility detection time as the second preset time electromagnetic cooker electromagnetic compatibility test signal volatility detection point; obtaining the signal drift rate of the electromagnetic cooker electromagnetic compatibility test signal volatility detection point at the second preset time through an oscilloscope; obtaining the electronic component thermal noise of the electromagnetic cooker electromagnetic compatibility test signal volatility detection point at the second preset time through an oscilloscope; obtaining the signal positive peak amplitude of the electromagnetic cooker electromagnetic compatibility test signal volatility detection point at the second preset time through a voltmeter; obtaining the signal negative peak amplitude of the electromagnetic cooker electromagnetic compatibility test signal volatility detection point at the second preset time through a voltmeter; The power supply voltage fluctuation at the electromagnetic cooker electromagnetic compatibility test signal volatility detection point at the second preset time is obtained through the EMC testing equipment; the mechanical vibration frequency at the electromagnetic cooker electromagnetic compatibility test signal volatility detection point at the second preset time is obtained through the signal conditioner; the electromagnetic interference intensity at the electromagnetic cooker electromagnetic compatibility test signal volatility detection point at the second preset time is obtained through the current probe; the electromagnetic cooker electromagnetic compatibility test signal volatility data includes signal drift rate, electronic component noise, signal positive peak amplitude, signal negative peak amplitude, power supply voltage fluctuation, mechanical vibration frequency and electromagnetic interference intensity; the electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index is obtained according to the electromagnetic cooker electromagnetic compatibility test signal volatility data analysis.

[0012] Optionally, the specific steps of the comprehensive analysis to obtain the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index are: recording the electromagnetic cooker electromagnetic compatibility test accuracy detection time as the electromagnetic cooker electromagnetic compatibility test accuracy detection point at the third preset time; obtaining the grounding resistance value of the electromagnetic cooker electromagnetic compatibility test accuracy detection point at the third preset time by a grounding resistance tester; obtaining the temperature of the electromagnetic cooker electromagnetic compatibility test accuracy detection point at the third preset time by an infrared thermometer; and obtaining the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index by comprehensive analysis of the electromagnetic cooker electromagnetic compatibility test anti-interference evaluation index, the electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index, the grounding resistance value and the temperature.

[0013] Optionally, the specific steps of optimizing and adjusting the electromagnetic cooker's electromagnetic compatibility test anti-interference capability are as follows: if the electromagnetic cooker's electromagnetic compatibility test anti-interference evaluation index is greater than or equal to the first threshold value of the electromagnetic cooker's electromagnetic compatibility test anti-interference evaluation index, there is no need to optimize and adjust the electromagnetic cooker's electromagnetic compatibility test anti-interference capability; if the electromagnetic cooker's electromagnetic compatibility test anti-interference evaluation index is lower than the first threshold value of the electromagnetic cooker's electromagnetic compatibility test anti-interference evaluation index, the electromagnetic compatibility analysis software is used to control the filter's cutoff frequency and bandwidth, and the electromagnetic interference is compensated and filtered through the software.

[0014] Optionally, the specific steps of optimizing and adjusting the electromagnetic compatibility test signal fluctuation of the electromagnetic cooker are: if the electromagnetic compatibility test signal volatility assessment index of the electromagnetic cooker is lower than or equal to the second threshold value of the electromagnetic compatibility test signal volatility assessment index of the electromagnetic cooker, there is no need to optimize and adjust the electromagnetic compatibility test signal fluctuation of the electromagnetic cooker; if the electromagnetic compatibility test signal volatility assessment index of the electromagnetic cooker is greater than the second threshold value of the electromagnetic compatibility test signal volatility assessment index of the electromagnetic cooker, a filter is added to reduce the noise and interference in the signal, and the electromagnetic interference caused by the cable is reduced through wireless technology.

[0015] Optionally, the specific steps of comparing and analyzing the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index with the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index comprehensive threshold are: extracting the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index comprehensive threshold in the electromagnetic compatibility database, comparing the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index with the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index comprehensive threshold; if the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index is greater than or equal to the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index comprehensive threshold, then the electromagnetic compatibility data processing is accurate; if the electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker is less than the electromagnetic compatibility test accuracy evaluation index comprehensive threshold, then the electromagnetic compatibility data processing is inaccurate; if the electromagnetic compatibility data processing is accurate, there is no need to optimize and adjust the electromagnetic compatibility test accuracy of the electromagnetic cooker; if the electromagnetic compatibility data processing is inaccurate, adjust the filter settings to remove noise and interference, adjust the grounding resistance value, and adjust the distance between the electromagnetic cooker and the receiving antenna to a specified value.

[0016] Optionally, the specific steps of analyzing and obtaining the electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker are:

[0017]

[0018] σ1+σ2=1; φ1+φ2=1;

[0019] Optionally, η represents the electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker It represents the ground resistance value correction coefficient at the S0th electromagnetic compatibility test accuracy detection point of the electromagnetic cooker; It represents the temperature correction coefficient at the S0th electromagnetic compatibility test accuracy detection point of the electromagnetic cooker; It represents the electromagnetic compatibility test anti-interference evaluation index of the electromagnetic cooker at the K0th electromagnetic compatibility test anti-interference detection point; The electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index representing the electromagnetic cooker electromagnetic compatibility test signal volatility detection point T0; It represents the grounding resistance value at the S0th electromagnetic compatibility test accuracy detection point of the electromagnetic cooker; P1 represents the standard value of the grounding resistance value, which is the preset standard value of the grounding resistance value obtained from the electromagnetic compatibility database; represents the temperature at the S0th electromagnetic compatibility test accuracy detection point of the electromagnetic cooker; W1 represents the temperature standard value, which is the preset temperature standard value obtained from the electromagnetic compatibility database; σ1 is the preset electromagnetic cooker electromagnetic compatibility test anti-interference evaluation index influencing weight factor obtained from the electromagnetic compatibility database; σ2 is the preset electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index influencing weight factor obtained from the electromagnetic compatibility database; φ1 is the preset grounding resistance value correction factor obtained from the electromagnetic compatibility database; φ2 is the preset temperature correction factor obtained from the electromagnetic compatibility database.

[0020] The embodiment of the present invention provides an electromagnetic compatibility test data processing system based on the Internet of Things, including: an electromagnetic cooker electromagnetic compatibility test data collection module, an electromagnetic cooker electromagnetic compatibility test data analysis module, a comprehensive analysis module and an electromagnetic cooker electromagnetic compatibility test optimization and adjustment module: an electromagnetic cooker electromagnetic compatibility test data collection module: used for collecting and processing electromagnetic cooker electromagnetic compatibility test data; an electromagnetic cooker electromagnetic compatibility test data analysis module: used for analyzing the electromagnetic cooker electromagnetic compatibility test data, obtaining an electromagnetic cooker electromagnetic compatibility test anti-interference evaluation index and obtaining an electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index; a comprehensive analysis module: used for comprehensive analysis to obtain an electromagnetic cooker electromagnetic compatibility test accuracy evaluation index; an electromagnetic cooker electromagnetic compatibility test optimization and adjustment module: used for comparing and analyzing the electromagnetic cooker electromagnetic compatibility test anti-interference evaluation index with a first threshold value of the electromagnetic cooker electromagnetic compatibility test anti-interference evaluation index, and optimizing and adjusting the electromagnetic cooker electromagnetic compatibility test anti-interference ability; comparing and analyzing the electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index with a second threshold value of the electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index, and optimizing and adjusting the electromagnetic cooker electromagnetic compatibility test signal fluctuation; comparing and analyzing the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index with a comprehensive threshold value of the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index, and optimizing and adjusting the electromagnetic cooker electromagnetic compatibility test accuracy.

[0021] The above technical solution provided by the present invention has at least the following beneficial effects compared with the prior art:

[0022] In the above scheme, electromagnetic compatibility test data of electromagnetic cookers are collected; electromagnetic compatibility test data of electromagnetic cookers are analyzed; comprehensive analysis is performed and the accuracy of electromagnetic compatibility test of electromagnetic cookers is optimized and adjusted. The present invention collects and processes electromagnetic compatibility test data of electromagnetic cookers, analyzes electromagnetic compatibility test data of electromagnetic cookers, obtains electromagnetic compatibility test accuracy evaluation index of electromagnetic cookers through comprehensive analysis and optimizes and adjusts the accuracy of electromagnetic compatibility test of electromagnetic cookers, thereby improving the accuracy of electromagnetic compatibility test data processing method based on Internet of Things and solving the problem of insufficient accuracy of electromagnetic compatibility test data processing method based on Internet of Things in the prior art.

[0023] By analyzing the electromagnetic compatibility test data of induction cookers and identifying potential sources of electromagnetic interference, these problems can be avoided in the design stage and failures caused by electromagnetic interference can be reduced. This can extend the product's service life, reduce maintenance costs, quickly locate problems, and reduce debugging and testing time.

[0024] Through comprehensive analysis, the electromagnetic compatibility test accuracy evaluation index of the induction cooker is obtained and the electromagnetic compatibility test accuracy of the induction cooker is optimized and adjusted. By optimizing the test accuracy, it is ensured that the test results are closer to the actual situation, thereby improving the reliability of the test results, reducing misjudgments caused by test errors, and avoiding misjudgment of non-standard induction cookers as qualified, or misjudgment of qualified products as unqualified. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a structural schematic diagram of an electromagnetic compatibility test data processing method based on the Internet of Things of the present invention;

[0027] Figure 2 A schematic diagram of an index function for evaluating the accuracy of an electromagnetic compatibility test of an electromagnetic cooker provided by an embodiment of the present invention;

[0028] Figure 3 A schematic diagram of the structure of an electromagnetic compatibility test data processing system based on the Internet of Things provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one", "one" or "the" do not indicate a quantitative limitation, but indicate the existence of at least one. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0031] It should be noted that the terms "up", "down", "left", "right", "front", "back", etc. used in the present invention are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0032] like Figure 1 As shown, an embodiment of the present invention provides an electromagnetic compatibility test data processing method and system based on the Internet of Things, including collecting and processing electromagnetic compatibility test data of an electromagnetic cooker; analyzing the electromagnetic compatibility test data of the electromagnetic cooker to obtain an electromagnetic compatibility test anti-interference evaluation index of the electromagnetic cooker and an electromagnetic compatibility test signal volatility evaluation index of the electromagnetic cooker; comprehensively analyzing to obtain an electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker; comparing and analyzing the electromagnetic cooker electromagnetic compatibility test anti-interference evaluation index with a first threshold of the electromagnetic compatibility test anti-interference evaluation index of the electromagnetic cooker, and optimizing and adjusting the electromagnetic compatibility test anti-interference ability of the electromagnetic cooker; comparing and analyzing the electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index with a second threshold of the electromagnetic compatibility test signal volatility evaluation index of the electromagnetic cooker, and optimizing and adjusting the electromagnetic compatibility test signal fluctuation of the electromagnetic cooker; comparing and analyzing the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index with a comprehensive threshold of the electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker, and optimizing and adjusting the electromagnetic compatibility test accuracy of the electromagnetic cooker.

[0033] In this embodiment, electromagnetic compatibility data is collected by sensor equipment, and the collected data is transmitted to the central processing system through a wireless or wired network. The electromagnetic compatibility test data of the electromagnetic cooker is analyzed to obtain the electromagnetic compatibility test anti-interference evaluation index of the electromagnetic cooker and the electromagnetic compatibility test signal volatility evaluation index of the electromagnetic cooker. The electromagnetic compatibility test anti-interference evaluation index of the electromagnetic cooker is used to measure the anti-interference ability of the electromagnetic cooker in an electromagnetic environment. By testing the performance of the electromagnetic cooker under different electromagnetic interference conditions, its anti-interference ability is evaluated to ensure that it can work stably in a complex electromagnetic environment. The electromagnetic compatibility test signal volatility evaluation index of the electromagnetic cooker is used to measure the stability of the electromagnetic signal of the electromagnetic cooker during operation. By testing the fluctuation of the electromagnetic signal of the electromagnetic cooker during operation, the signal stability is evaluated. A comprehensive analysis is performed to obtain the electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker. The electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker is used to quantify the accuracy of the electromagnetic compatibility test results of the electromagnetic cooker to ensure the reliability of the test results.

[0034] Among them, the specific steps of collecting and processing the electromagnetic compatibility test data of the electromagnetic cooker are: collecting the original electromagnetic compatibility test data of the electromagnetic cooker through the sensor equipment; cleaning and denoising the original electromagnetic compatibility test data of the electromagnetic cooker to obtain the electromagnetic compatibility test data of the electromagnetic cooker, and the electromagnetic compatibility test data of the electromagnetic cooker includes the electromagnetic compatibility test anti-interference data of the electromagnetic cooker and the electromagnetic compatibility test signal volatility data of the electromagnetic cooker.

[0035] Among them, the specific steps of obtaining the electromagnetic cooker electromagnetic compatibility test anti-interference evaluation index are: recording the electromagnetic cooker electromagnetic compatibility test anti-interference detection time as the first preset time electromagnetic cooker electromagnetic compatibility test anti-interference detection point; obtaining the power supply voltage fluctuation of the electromagnetic cooker electromagnetic compatibility test anti-interference detection point at the first preset time through the EMC test equipment; obtaining the filter cutoff frequency of the electromagnetic cooker electromagnetic compatibility test anti-interference detection point at the first preset time through the spectrum analyzer; obtaining the temperature of the electromagnetic cooker electromagnetic compatibility test anti-interference detection point at the first preset time through the temperature sensor; obtaining the humidity of the electromagnetic cooker electromagnetic compatibility test anti-interference detection point at the first preset time through the humidity sensor; obtaining the electromagnetic interference intensity of the electromagnetic cooker electromagnetic compatibility test anti-interference detection point at the first preset time through the current probe; obtaining the signal power of the electromagnetic cooker electromagnetic compatibility test anti-interference detection point at the first preset time through the spectrum analyzer; obtaining the noise power of the electromagnetic cooker electromagnetic compatibility test anti-interference detection point at the first preset time through the spectrum analyzer; the electromagnetic cooker electromagnetic compatibility test anti-interference data includes power supply voltage fluctuation, filter cutoff frequency, temperature, humidity, electromagnetic interference intensity, signal power and noise power; and obtaining the electromagnetic cooker electromagnetic compatibility test anti-interference evaluation index according to the electromagnetic cooker electromagnetic compatibility test anti-interference data analysis.

[0036] In this embodiment, the specific method of analyzing and obtaining the electromagnetic compatibility test anti-interference evaluation index of the electromagnetic cooker is as follows:

[0037]

[0038]

[0039]

[0040] λ1+λ2+λ3+λ4=1;

[0041] θ1+θ2=1;

[0042] The preset electromagnetic cooker electromagnetic compatibility test anti-interference detection points are numbered in sequence, K0 represents the number of the electromagnetic cooker electromagnetic compatibility test anti-interference detection point under the L0th electromagnetic cooker electromagnetic compatibility test anti-interference detection section, K0=1,2,...,K, K represents the total number of electromagnetic cooker electromagnetic compatibility test anti-interference detection points.

[0043] The preset electromagnetic cooker electromagnetic compatibility test anti-interference time is divided into preset electromagnetic cooker electromagnetic compatibility test anti-interference detection segments of the same time length, L0 represents the number of the preset electromagnetic cooker electromagnetic compatibility test anti-interference detection segment, L0=1,2,...,L, L represents the total number of the preset electromagnetic cooker electromagnetic compatibility test anti-interference detection segments.

[0044] It represents the electromagnetic cooker electromagnetic compatibility test anti-interference evaluation index at the K0th electromagnetic cooker electromagnetic compatibility test anti-interference detection point.

[0045] It represents the signal-to-noise ratio coefficient at the K0th electromagnetic cooker electromagnetic compatibility test anti-interference detection point.

[0046] A1 represents the standard value of power supply voltage fluctuation, which is the preset standard value of power supply voltage fluctuation obtained from the electromagnetic compatibility database and is used to describe the influence of the stability of power supply voltage at the anti-interference detection point of the electromagnetic compatibility test of a certain electromagnetic cooker on the performance of the electromagnetic cooker.

[0047] It represents the power supply voltage fluctuation in the L0th electromagnetic cooker electromagnetic compatibility test anti-interference detection section, and represents the difference between the maximum and minimum power supply voltage in the electromagnetic cooker electromagnetic compatibility test anti-interference detection section.

[0048] It represents the filter cutoff frequency at the K0th electromagnetic cooker electromagnetic compatibility test anti-interference detection point.

[0049] B1 represents the standard value of the filter cutoff frequency, which is the preset standard value of the filter cutoff frequency obtained from the electromagnetic compatibility database and is used to describe the filter cutoff frequency at the anti-interference detection point of the electromagnetic compatibility test of a certain electromagnetic cooker.

[0050] It represents the temperature correction coefficient of the K0th electromagnetic cooker electromagnetic compatibility test anti-interference detection point.

[0051] It represents the humidity correction coefficient at the K0th electromagnetic compatibility test anti-interference detection point of the electromagnetic cooker. It indicates the electromagnetic intensity at the anti-interference detection point of the electromagnetic compatibility test of the K0th electromagnetic cooker.

[0052] D1 represents the standard value of electromagnetic field strength, which is the preset standard value of electromagnetic field strength obtained from the electromagnetic compatibility database, and represents the electromagnetic field strength value at the anti-interference detection point of the electromagnetic compatibility test of a certain electromagnetic cooker.

[0053] It represents the signal power at the K0th electromagnetic cooker electromagnetic compatibility test anti-interference detection point.

[0054] It represents the noise power at the K0th electromagnetic cooker electromagnetic compatibility test anti-interference detection point.

[0055] It indicates the ambient humidity at the K0th electromagnetic compatibility test anti-interference detection point of the electromagnetic cooker.

[0056] G1 represents the standard value of ambient humidity, which is the preset standard value of ambient humidity obtained from the electromagnetic compatibility database. It represents the ambient humidity value at the anti-interference detection point of an electromagnetic compatibility test of an electromagnetic cooker, and is the ambient humidity value most suitable for the equipment to work.

[0057] It indicates the ambient temperature at the anti-interference detection point of the K0th electromagnetic compatibility test of the induction cooker.

[0058] Q1 represents the standard value of ambient temperature, which is the preset standard value of ambient temperature obtained from the electromagnetic compatibility database. It represents the ambient temperature value at the anti-interference detection point of an electromagnetic compatibility test of an electromagnetic cooker, and is the ambient temperature value most suitable for the equipment to work.

[0059] λ1 is a preset signal-to-noise ratio coefficient influence weight factor obtained from the electromagnetic compatibility database.

[0060] λ2 is the preset power supply voltage fluctuation influence weight factor obtained from the electromagnetic compatibility database.

[0061] λ3 is the influence weight factor of the preset filter cutoff frequency obtained from the electromagnetic compatibility database.

[0062] λ4 is a preset electromagnetic interference intensity influence weight factor obtained from the electromagnetic compatibility database.

[0063] θ1 is the preset ambient humidity correction factor obtained from the electromagnetic compatibility database.

[0064] θ2 is the preset ambient temperature correction factor obtained from the electromagnetic compatibility database.

[0065] The preset signal-to-noise ratio coefficient influence weight factor, the preset power supply voltage fluctuation influence weight factor, the preset filter cutoff frequency influence weight factor and the preset electromagnetic interference intensity influence weight factor respectively represent the numerical values ​​of the influence of power supply stability on the signal-to-noise ratio coefficient, power supply voltage fluctuation, filter cutoff frequency and electromagnetic interference intensity on the anti-interference evaluation index of the electromagnetic compatibility test of the electromagnetic cooker.

[0066] When in use, the preset signal-to-noise ratio coefficient influence weight factor, the preset power supply voltage fluctuation influence weight factor, the preset filter cutoff frequency influence weight factor and the preset electromagnetic interference intensity influence weight factor can be directly obtained from the electromagnetic compatibility database according to the value of power supply stability, and the corresponding relationship can be a pre-set mapping relationship. For example, a mapping set of power supply stability and its corresponding preset signal-to-noise ratio coefficient influence weight factor, preset power supply voltage fluctuation influence weight factor, preset filter cutoff frequency influence weight factor and preset electromagnetic interference intensity influence weight factor is constructed, and the real-time power supply stability value is input into the mapping set to obtain the preset signal-to-noise ratio coefficient influence weight factor, preset power supply voltage fluctuation influence weight factor, preset filter cutoff frequency influence weight factor and preset electromagnetic interference intensity influence weight factor. Optionally, the mapping relationship can be one-to-one or many-to-one.

[0067] The preset ambient humidity correction factor and the preset ambient temperature correction factor respectively represent the numerical values ​​of the influence of the equipment use time on the ambient humidity and ambient temperature on the anti-interference evaluation index of the electromagnetic compatibility test of the induction cooker.

[0068] During use, the preset ambient humidity correction factor and the preset ambient temperature correction factor can be directly obtained from the electromagnetic compatibility database according to the value of the device usage time. The corresponding relationship can be a preset mapping relationship. For example, a mapping set of the device usage time and its corresponding preset ambient humidity correction factor and preset ambient temperature correction factor is constructed, and the real-time device usage time value is input into the mapping set to obtain the preset ambient humidity correction factor and the preset ambient temperature correction factor. The mapping relationship can be a one-to-one correspondence or a many-to-one relationship.

[0069] The higher the signal-to-noise ratio coefficient, the better the signal quality. Changes in the filter cutoff frequency and ambient temperature affect the signal-to-noise ratio coefficient. The lower the filter cutoff frequency, the more useful information in the signal is filtered out, thereby reducing the signal-to-noise ratio coefficient. Excessively high ambient temperature increases the thermal noise of electronic equipment, thereby reducing the signal-to-noise ratio coefficient. Power supply voltage fluctuations affect the performance of electronic equipment. The filter cutoff frequency reduces the impact of power supply voltage fluctuations on the signal. The greater the electromagnetic interference intensity, the smaller the power supply voltage fluctuation. The stronger the electromagnetic interference intensity, the lower the filter cutoff frequency. The ambient humidity affects the performance of electronic equipment. The higher the ambient humidity, the more corrosion of internal components of the equipment, thereby reducing the signal-to-noise ratio coefficient.

[0070] In the electromagnetic compatibility test, the higher the signal-to-noise ratio coefficient, the stronger the anti-interference ability of the equipment. There is a positive correlation between the signal-to-noise ratio coefficient and the electromagnetic compatibility test anti-interference evaluation index of the electromagnetic compatibility test of the electromagnetic cooker, and the larger the electromagnetic compatibility test anti-interference evaluation index of the electromagnetic compatibility test of the electromagnetic cooker; the power supply voltage fluctuation affects the stability and performance of electronic equipment. In the electromagnetic compatibility test, the equipment needs to be able to work normally within a certain power supply voltage fluctuation range. The smaller the difference between the power supply voltage fluctuation and the standard value of the power supply voltage fluctuation, the negative relationship between the power supply voltage fluctuation and the electromagnetic compatibility test anti-interference evaluation index of the electromagnetic compatibility test of the electromagnetic cooker, and the larger the electromagnetic compatibility test anti-interference evaluation index of the electromagnetic cooker; the larger the filter cutoff frequency, the positive relationship between the filter cutoff frequency and the electromagnetic compatibility test anti-interference evaluation index of the electromagnetic cooker, and the electromagnetic cooker The larger the compatibility test anti-interference evaluation index is; the smaller the difference between the electromagnetic interference intensity and the standard value of the electromagnetic interference intensity, the square of the difference between the electromagnetic interference intensity and the standard value of the electromagnetic interference intensity has a negative relationship with the electromagnetic compatibility test anti-interference evaluation index of the electromagnetic cooker, and the larger the electromagnetic compatibility test anti-interference evaluation index of the electromagnetic cooker is; the smaller the square of the difference between the ambient humidity and the standard value of the ambient humidity, the square of the difference between the ambient humidity and the standard value of the ambient humidity has a negative relationship with the electromagnetic compatibility test anti-interference evaluation index of the electromagnetic cooker, and the larger the electromagnetic compatibility test anti-interference evaluation index of the electromagnetic cooker is; the smaller the square of the difference between the ambient temperature and the standard value of the ambient temperature, the square of the difference between the ambient temperature and the standard value of the ambient temperature has a negative relationship with the electromagnetic compatibility test anti-interference evaluation index of the electromagnetic cooker, and the larger the electromagnetic compatibility test anti-interference evaluation index of the electromagnetic cooker is.

[0071] Among them, the specific steps of obtaining the electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index are: recording the electromagnetic cooker electromagnetic compatibility test signal volatility detection time as the second preset time electromagnetic cooker electromagnetic compatibility test signal volatility detection point; obtaining the signal drift rate of the electromagnetic cooker electromagnetic compatibility test signal volatility detection point at the second preset time through an oscilloscope; obtaining the electronic component thermal noise of the electromagnetic cooker electromagnetic compatibility test signal volatility detection point at the second preset time through an oscilloscope; obtaining the signal positive peak amplitude of the electromagnetic cooker electromagnetic compatibility test signal volatility detection point at the second preset time through a voltmeter; obtaining the signal negative peak amplitude of the electromagnetic cooker electromagnetic compatibility test signal volatility detection point at the second preset time through a voltmeter; The power supply voltage fluctuation at the electromagnetic cooker electromagnetic compatibility test signal volatility detection point at the second preset time is obtained through the EMC testing equipment; the mechanical vibration frequency at the electromagnetic cooker electromagnetic compatibility test signal volatility detection point at the second preset time is obtained through the signal conditioner; the electromagnetic interference intensity at the electromagnetic cooker electromagnetic compatibility test signal volatility detection point at the second preset time is obtained through the current probe; the electromagnetic cooker electromagnetic compatibility test signal volatility data includes signal drift rate, electronic component noise, signal positive peak amplitude, signal negative peak amplitude, power supply voltage fluctuation, mechanical vibration frequency and electromagnetic interference intensity; the electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index is obtained according to the electromagnetic cooker electromagnetic compatibility test signal volatility data analysis.

[0072] In this embodiment, the specific method for analyzing and obtaining the electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index is as follows:

[0073]

[0074]

[0075]

[0076] ρ1+ρ2=1;

[0077] The preset electromagnetic cooker electromagnetic compatibility test signal fluctuation detection points are numbered in sequence, T0 represents the number of the electromagnetic cooker electromagnetic compatibility test signal fluctuation detection point under the N0th electromagnetic cooker electromagnetic compatibility test signal fluctuation detection segment, T0=1,2,...,T, T represents the total number of the electromagnetic cooker electromagnetic compatibility test signal fluctuation detection points.

[0078] The preset electromagnetic cooker electromagnetic compatibility test signal fluctuation time is divided into electromagnetic cooker electromagnetic compatibility test signal fluctuation detection segments of the same time length, N0 represents the number of the electromagnetic cooker electromagnetic compatibility test signal fluctuation detection segment, N0=1,2,...,N, N represents the total number of the electromagnetic cooker electromagnetic compatibility test signal fluctuation detection segments.

[0079] Represents the electromagnetic cooker electromagnetic compatibility test signal volatility assessment index of the T0th electromagnetic cooker electromagnetic compatibility test signal volatility detection point.

[0080] It represents the mechanical vibration correction frequency coefficient at the T0th electromagnetic compatibility test signal fluctuation detection point of the electromagnetic cooker.

[0081] It represents the electromagnetic interference intensity correction coefficient at the T0th electromagnetic cooker electromagnetic compatibility test signal fluctuation detection point.

[0082] It represents the signal frequency drift rate at the T0th electromagnetic cooker electromagnetic compatibility test signal fluctuation detection point.

[0083] Q1 represents the signal frequency drift rate threshold, which is a preset signal frequency drift rate threshold obtained from the electromagnetic compatibility database, and represents the signal frequency drift rate at a signal volatility detection point of an electromagnetic compatibility test of an electromagnetic cooker.

[0084] It represents the thermal noise of electronic components at the T0th electromagnetic compatibility test signal fluctuation detection point of the electromagnetic cooker. Electronic component noise refers to the signal fluctuation generated by the electronic component during operation. This fluctuation usually manifests itself as a change in voltage or current. The noise is caused by many factors, including thermal noise, shot noise, flicker noise, etc.

[0085] Y1 represents the electronic component thermal noise threshold, which is a preset electronic component thermal noise threshold obtained from the electromagnetic compatibility database, and represents the electronic component thermal noise at a fluctuation detection point of an electromagnetic compatibility test signal of an electromagnetic cooker.

[0086] It represents the positive peak amplitude of the signal corresponding to the maximum absolute value of the power signal in the N0th electromagnetic compatibility test signal fluctuation detection section.

[0087] It represents the negative peak amplitude of the signal corresponding to the minimum absolute value of the power signal in the N0th electromagnetic compatibility test signal fluctuation detection section.

[0088] R1 represents the signal amplitude threshold, which is a preset signal amplitude threshold obtained from the electromagnetic compatibility database, and represents the signal amplitude at a fluctuation detection point of an electromagnetic compatibility test signal of an electromagnetic cooker.

[0089] A1 represents the standard value of power supply voltage fluctuation, which is a preset standard value of power supply voltage fluctuation obtained from the electromagnetic compatibility database and is used to describe the influence of the stability of the power supply voltage at a fluctuation detection point of the electromagnetic compatibility test signal of a certain electromagnetic cooker on the performance of the electromagnetic cooker.

[0090] It indicates the power supply voltage fluctuation at the T0th electromagnetic compatibility test signal fluctuation detection point of the electromagnetic cooker.

[0091] It indicates the mechanical vibration frequency at the T0th electromagnetic compatibility test signal fluctuation detection point of the electromagnetic cooker.

[0092] M1 represents the standard value of mechanical vibration frequency, which is a preset standard value of mechanical vibration frequency obtained from the electromagnetic compatibility database, and represents the mechanical vibration frequency within the normal range of a certain electromagnetic compatibility test signal volatility detection point of an electromagnetic cooker.

[0093] It indicates the electromagnetic intensity at the T0th electromagnetic cooker electromagnetic compatibility test signal fluctuation detection point.

[0094] D1 represents the standard value of electromagnetic field strength, which is the preset standard value of electromagnetic field strength obtained from the electromagnetic compatibility database, and represents the standard value of electromagnetic field strength at a fluctuation detection point of an electromagnetic compatibility test signal of an electromagnetic cooker.

[0095] It is the preset signal frequency drift rate influence weight factor obtained from the electromagnetic compatibility database.

[0096] is the thermal noise impact weight factor of the preset electronic components obtained from the electromagnetic compatibility database.

[0097] It is the preset signal amplitude impact weight factor obtained from the electromagnetic compatibility database.

[0098] is the preset power supply voltage fluctuation impact weight factor obtained from the electromagnetic compatibility database.

[0099] ρ1 is the preset mechanical vibration frequency correction factor obtained from the electromagnetic compatibility database.

[0100] ρ2 is the preset electromagnetic interference intensity correction factor obtained from the electromagnetic compatibility database.

[0101] The preset signal frequency drift rate influence weight factor, the preset electronic component thermal noise influence weight factor, the preset signal amplitude influence weight factor and the preset power supply voltage fluctuation influence weight factor respectively represent the numerical values ​​of the influence of the signal frequency drift rate, electronic component thermal noise, signal amplitude and power supply voltage fluctuation on the electromagnetic compatibility test signal volatility assessment index of the induction cooker.

[0102] When in use, the preset signal frequency drift rate influence weight factor, the preset electronic component thermal noise influence weight factor, the preset signal amplitude influence weight factor and the preset power supply voltage fluctuation influence weight factor can be directly obtained from the electromagnetic compatibility database according to the value of temperature change, and the corresponding relationship can be a pre-set mapping relationship. For example, a mapping set of temperature change and its corresponding preset signal frequency drift rate influence weight factor, preset electronic component thermal noise influence weight factor, preset signal amplitude influence weight factor and preset power supply voltage fluctuation influence weight factor is constructed, and the real-time temperature change value is input into the mapping set to obtain the preset signal frequency drift rate influence weight factor, the preset electronic component thermal noise influence weight factor, the preset signal amplitude influence weight factor and the preset power supply voltage fluctuation influence weight factor, and the mapping relationship can be one-to-one or many-to-one.

[0103] The preset mechanical vibration frequency correction factor and the preset electromagnetic interference intensity correction factor respectively represent the numerical values ​​of the influence of the filter bandwidth on the mechanical vibration frequency and the electromagnetic interference intensity on the fluctuation evaluation index of the electromagnetic compatibility test signal of the electromagnetic cooker.

[0104] When in use, the preset mechanical vibration frequency correction factor and the preset electromagnetic interference intensity correction factor can be directly obtained from the electromagnetic compatibility database according to the value of the filter bandwidth, and the corresponding relationship can be a preset mapping relationship. For example, a mapping set of the filter bandwidth and its corresponding preset mechanical vibration frequency correction factor and preset electromagnetic interference intensity correction factor is constructed, and the real-time filter bandwidth value is input into the mapping set to obtain the preset mechanical vibration frequency correction factor and the preset electromagnetic interference intensity correction factor. The mapping relationship can be a one-to-one correspondence or a many-to-one relationship.

[0105] Mechanical vibration affects the connection and performance of electronic components, and thus affects the signal quality. Vibration increases the thermal noise of electronic components, resulting in a decrease in the signal-to-noise ratio. The intensity of electromagnetic interference affects the transmission quality of the signal and increases the thermal noise of electronic components. The higher the electromagnetic interference intensity, the greater the impact on the performance of the equipment. Voltage fluctuations cause unstable operation of the equipment and increase the thermal noise of electronic components, thereby affecting the signal quality. Power supply voltage fluctuations affect the performance of the filter and thus affect the signal frequency drift rate. The difference between the positive peak amplitude of the signal and the negative peak amplitude of the signal is too large, indicating that the signal is interfered with or the equipment performance is poor. The asymmetry of the signal affects the signal-to-noise ratio and reduces the anti-interference ability of the equipment.

[0106] The larger the square of the difference between the mechanical vibration frequency and the mechanical vibration frequency, the positive relationship exists between the square of the difference between the mechanical vibration frequency and the electromagnetic compatibility test signal volatility assessment index of the electromagnetic cooker, and the larger the electromagnetic compatibility test signal volatility assessment index of the electromagnetic cooker; the larger the square of the difference between the electromagnetic interference intensity and the electromagnetic interference intensity, the positive relationship exists between the square of the difference between the electromagnetic interference intensity and the electromagnetic interference intensity and the electromagnetic compatibility test signal volatility assessment index of the electromagnetic cooker, and the larger the electromagnetic compatibility test signal volatility assessment index of the electromagnetic cooker; the larger the signal frequency drift rate, the positive relationship exists between the signal frequency drift rate and the electromagnetic compatibility test signal volatility assessment index of the electromagnetic cooker, and the larger the electromagnetic compatibility test signal volatility assessment index of the electromagnetic cooker; the larger the thermal noise of the electronic component, the positive relationship exists between the thermal noise of the electronic component and the electromagnetic compatibility test signal volatility assessment index of the electromagnetic cooker, and the larger the electromagnetic compatibility test signal volatility assessment index of the electromagnetic cooker; the larger the difference between the positive peak amplitude of the signal and the negative peak amplitude of the signal, the positive relationship exists between the positive peak amplitude of the signal and the negative peak amplitude of the signal and the electromagnetic compatibility test signal volatility assessment index of the electromagnetic cooker, and the larger the electromagnetic compatibility test signal volatility assessment index of the electromagnetic cooker.

[0107] Among them, the specific steps of comprehensive analysis to obtain the electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker are: recording the electromagnetic compatibility test accuracy detection time of the electromagnetic cooker as the electromagnetic compatibility test accuracy detection point of the third preset time; obtaining the grounding resistance value of the electromagnetic compatibility test accuracy detection point of the electromagnetic cooker at the third preset time by a grounding resistance tester; obtaining the temperature of the electromagnetic compatibility test accuracy detection point of the electromagnetic cooker at the third preset time by an infrared thermometer; and obtaining the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index by comprehensive analysis of the electromagnetic cooker electromagnetic compatibility test anti-interference evaluation index, the electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index, the grounding resistance value and the temperature.

[0108] In this embodiment, the specific method of analyzing and obtaining the electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker is as follows:

[0109]

[0110]

[0111] σ1+σ2=1; φ1+φ2=1;

[0112] The preset electromagnetic compatibility test accuracy detection points of the electromagnetic cooker are numbered in sequence, S0 represents the number of the electromagnetic compatibility test accuracy detection point of the electromagnetic cooker, S0=1,2,...,S, S represents the total number of the electromagnetic compatibility test accuracy detection points of the electromagnetic cooker.

[0113] η represents the accuracy evaluation index of electromagnetic compatibility test of induction cooker.

[0114] It represents the ground resistance correction factor of the S0th electromagnetic compatibility test accuracy detection point of the electromagnetic cooker.

[0115] It represents the temperature correction coefficient at the S0th induction cooker electromagnetic compatibility test accuracy detection point.

[0116] It represents the electromagnetic cooker electromagnetic compatibility test anti-interference evaluation index at the K0th electromagnetic cooker electromagnetic compatibility test anti-interference detection point.

[0117] Represents the electromagnetic cooker electromagnetic compatibility test signal volatility assessment index of the T0th electromagnetic cooker electromagnetic compatibility test signal volatility detection point.

[0118] It represents the grounding resistance value at the S0th electromagnetic compatibility test accuracy detection point of the electromagnetic cooker.

[0119] P1 represents the standard value of grounding resistance, which is a preset standard value of grounding resistance obtained from the electromagnetic compatibility database, and represents the standard value of grounding resistance at an electromagnetic compatibility test accuracy detection point of a certain electromagnetic cooker.

[0120] It indicates the temperature at the S0th electromagnetic compatibility test accuracy detection point of the induction cooker.

[0121] W1 represents the temperature standard value, which is the preset temperature standard value obtained from the electromagnetic compatibility database, and represents the temperature standard value at the accuracy detection point of the electromagnetic compatibility test of a certain electromagnetic cooker.

[0122] σ1 is the influencing weight factor of the electromagnetic compatibility test anti-interference evaluation index of the preset electromagnetic cooker obtained from the electromagnetic compatibility database.

[0123] σ2 is the influencing weight factor of the preset electromagnetic cooker electromagnetic compatibility test signal volatility assessment index obtained from the electromagnetic compatibility database.

[0124] φ1 is the preset ground resistance value correction factor obtained from the electromagnetic compatibility database.

[0125] φ2 is the preset temperature correction factor obtained from the electromagnetic compatibility database.

[0126] The preset electromagnetic cooker electromagnetic compatibility test anti-interference evaluation index influence weight factor and the preset electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index influence weight factor respectively represent the numerical values ​​of the influence of the vibration phase on the electromagnetic cooker electromagnetic compatibility test anti-interference evaluation index and the electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index on the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index.

[0127] When in use, the preset electromagnetic cooker electromagnetic compatibility test anti-interference evaluation index influencing weight factor and the preset electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index influencing weight factor can be directly obtained from the electromagnetic compatibility database according to the value of the vibration phase, and the corresponding relationship can be a pre-set mapping relationship. For example, a mapping set of the vibration phase and its corresponding preset electromagnetic cooker electromagnetic compatibility test anti-interference evaluation index influencing weight factor and the preset electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index influencing weight factor is constructed, and the real-time vibration phase value is input into the mapping set to obtain the preset electromagnetic cooker electromagnetic compatibility test anti-interference evaluation index influencing weight factor and the preset electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index influencing weight factor, and the mapping relationship can be one-to-one or many-to-one.

[0128] The preset grounding resistance value correction factor and the preset temperature correction factor respectively represent the numerical values ​​of the influence of the power spectrum density on the grounding resistance value and the temperature on the accuracy evaluation index of the electromagnetic compatibility test of the electromagnetic cooker.

[0129] When in use, the preset grounding resistance value correction factor and the preset temperature correction factor can be directly obtained from the electromagnetic compatibility database according to the value of the power spectrum density, and the corresponding relationship can be a preset mapping relationship. For example, a mapping set of power spectrum density and its corresponding preset grounding resistance value correction factor and preset temperature correction factor is constructed, and the real-time power spectrum density value is input into the mapping set to obtain the preset grounding resistance value correction factor and the preset temperature correction factor. The mapping relationship can be a one-to-one correspondence or a many-to-one relationship.

[0130] Table 1 is an example table of electromagnetic cooker electromagnetic compatibility test accuracy evaluation index. The example parameters in Table 1 only take the parameters of one electromagnetic cooker electromagnetic compatibility test accuracy detection point for example. The weight factor σ1 is set to 0.6, and the weight factor σ2 is set to 0.4. The ground resistance correction factor is 1. The temperature correction factor is 1, as shown in Table 1.

[0131] Table 1 Example of accuracy evaluation index of electromagnetic compatibility test for electromagnetic cooker

[0132]

[0133] It can be seen from Table 1 that the grounding resistance value affects the grounding effect of the electromagnetic cooker. The smaller the difference between the grounding resistance value and the standard value of the grounding resistance value, the better the electromagnetic compatibility. The smaller the difference between the grounding resistance value and the standard value of the grounding resistance value, the better the grounding performance of the electromagnetic cooker, and the anti-interference ability is improved. There is a positive correlation between the difference between the grounding resistance value and the standard value of the grounding resistance value and the electromagnetic compatibility test anti-interference evaluation index of the electromagnetic cooker; the increase in temperature leads to an increase in the thermal noise of electronic components and increases the volatility of the signal. There is a negative correlation between the temperature and the electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index. The higher the temperature and the temperature standard deviation, the greater the electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index; the greater the difference between the grounding resistance value and the standard value of the grounding resistance value, the electromagnetic cooker cannot discharge the interference current when it is subjected to external electromagnetic interference, which increases the volatility of the signal. There is a negative correlation between the difference between the grounding resistance value and the standard value of the grounding resistance value and the electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index; the stronger the anti-interference ability of the electromagnetic cooker, the smaller the volatility of the signal when it is subjected to external electromagnetic interference, and there is a negative correlation between the electromagnetic cooker electromagnetic compatibility test anti-interference evaluation index and the electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index.

[0134] There is a negative relationship between the difference between the grounding resistance value and the standard value of the grounding resistance value and the electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker. The smaller the difference between the grounding resistance value and the standard value of the grounding resistance value, the larger the electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker; there is a negative relationship between the difference between the temperature and the standard value of the temperature and the electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker. The smaller the difference between the temperature and the standard value of the temperature, the larger the electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker; there is a positive relationship between the electromagnetic compatibility test anti-interference evaluation index of the electromagnetic compatibility test of the electromagnetic cooker and the electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker. The larger the electromagnetic compatibility test anti-interference evaluation index of the electromagnetic compatibility test of the electromagnetic cooker, the larger the electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker; there is a negative relationship between the electromagnetic compatibility test signal volatility evaluation index of the electromagnetic cooker and the electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker. The larger the electromagnetic compatibility test signal volatility evaluation index of the electromagnetic cooker, the smaller the electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker.

[0135] like Figure 2 As shown, curve a indicates that if the electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index is a fixed value of 1, the electromagnetic cooker electromagnetic compatibility test anti-interference evaluation index is x, and the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index is y, the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index increases with the increase of the electromagnetic cooker electromagnetic compatibility test anti-interference evaluation index.

[0136] Curve b indicates that if the electromagnetic cooker electromagnetic compatibility test anti-interference evaluation index is a fixed value of 1, the electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index is x, and the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index is y, the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index decreases as the electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index increases.

[0137] Among them, the specific steps for optimizing and adjusting the anti-interference capability of the electromagnetic compatibility test of the electromagnetic cooker are as follows: if the anti-interference evaluation index of the electromagnetic compatibility test of the electromagnetic cooker is greater than or equal to the first threshold value of the anti-interference evaluation index of the electromagnetic compatibility test of the electromagnetic cooker, there is no need to optimize and adjust the anti-interference capability of the electromagnetic compatibility test of the electromagnetic cooker; if the anti-interference evaluation index of the electromagnetic compatibility test of the electromagnetic cooker is lower than the first threshold value of the anti-interference evaluation index of the electromagnetic compatibility test of the electromagnetic cooker, the cutoff frequency and bandwidth of the filter are controlled through the electromagnetic compatibility analysis software, and the electromagnetic interference is compensated and filtered through the software.

[0138] In this embodiment, it is assumed that the electromagnetic compatibility test anti-interference evaluation index of the electromagnetic cooker is 0.7, and the first threshold value of the electromagnetic compatibility test anti-interference evaluation index of the electromagnetic cooker is 0.8. The cutoff frequency and bandwidth of the filter are adjusted by the electromagnetic compatibility analysis software to compensate and filter the electromagnetic interference. For example, a low-pass filter is selected to filter out interference signals above a certain frequency. It is assumed that the main frequency range of electromagnetic interference is between 10kHz and 20kHz. In order to filter out these interference signals, the cutoff frequency is selected as 10kHz, the attenuation of useful signals is reduced, and a wider bandwidth is selected. Assuming that the bandwidth is selected as 5kHz, the parameters of the filter are set using the electromagnetic compatibility analysis software. In the software, the cutoff frequency is input as 10kHz and the bandwidth is 5kHz. The software will generate a corresponding filter based on these parameters and apply the filter to the electromagnetic compatibility test data of the electromagnetic cooker. The data is filtered by the software to remove interference signals above 10kHz, thereby improving the anti-interference evaluation index until the threshold standard is reached.

[0139] Among them, the specific steps of optimizing and adjusting the electromagnetic compatibility test signal fluctuation of the electromagnetic cooker are as follows: if the electromagnetic compatibility test signal volatility assessment index of the electromagnetic cooker is lower than or equal to the second threshold value of the electromagnetic compatibility test signal volatility assessment index of the electromagnetic cooker, there is no need to optimize and adjust the electromagnetic compatibility test signal fluctuation of the electromagnetic cooker; if the electromagnetic compatibility test signal volatility assessment index of the electromagnetic cooker is greater than the second threshold value of the electromagnetic compatibility test signal volatility assessment index of the electromagnetic cooker, a filter is added to reduce the noise and interference in the signal, and the electromagnetic interference caused by cables is reduced through wireless technology.

[0140] In this embodiment, assuming that the electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index is 1.2, and the electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index second threshold is 1.0, the cutoff frequency of the filter is determined. The cutoff frequency refers to the frequency point at which the filter starts to attenuate. In this example, it is assumed that the signal frequency range of the electromagnetic cooker is between 0Hz and 1kHz, and the noise and interference signals are mainly above 1kHz. In order to filter out these noise and interference signals, the cutoff frequency can be selected as 1kHz, and the bandwidth of the filter is determined. The bandwidth refers to the frequency range allowed by the filter. In this example, the attenuation of the useful signal is reduced and a wider bandwidth is selected. Assume that the bandwidth is selected as 500Hz, the input cutoff frequency is 1kHz, and the bandwidth is 500Hz. The software will generate corresponding filters based on these parameters, and reduce the electromagnetic interference caused by cables through wireless technology. In this example, wireless sensors are used to replace traditional wired sensors. Wireless sensors transmit data through wireless signals, reduce the use of cables, and thus reduce the electromagnetic interference caused by cables. The filter is applied to the electromagnetic compatibility test data of the electromagnetic cooker, and data is collected through wireless sensors. The data is filtered by software to remove noise and interference signals above 1kHz, thereby reducing the signal volatility assessment index until the threshold standard is reached.

[0141] Among them, the specific steps of comparing and analyzing the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index with the comprehensive threshold of the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index are as follows: extracting the comprehensive threshold of the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index in the electromagnetic compatibility database, and comparing the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index with the comprehensive threshold of the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index; if the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index is greater than or equal to the comprehensive threshold of the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index, then the electromagnetic compatibility data processing is accurate; if the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index is less than the comprehensive threshold of the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index, then the electromagnetic compatibility data processing is inaccurate.

[0142] Among them, the specific steps for optimizing and adjusting the accuracy of the electromagnetic compatibility test of the induction cooker are as follows: if the electromagnetic compatibility data processing is accurate, there is no need to optimize and adjust the accuracy of the electromagnetic compatibility test of the induction cooker; if the electromagnetic compatibility data processing is inaccurate, adjust the filter settings to remove noise and interference, adjust the grounding resistance value, and adjust the distance between the induction cooker and the receiving antenna to the specified value.

[0143] In this embodiment, it is assumed that a low-pass filter is used to remove high-frequency noise, and the cutoff frequency of the filter is set to 10kHz to remove noise above 10kHz. The original signal is a mixed signal containing useful signals and noise, and the filtered signal is a signal after passing through the low-pass filter, and the noise above 10kHz is removed; it is assumed that a ground resistance tester is used to measure the ground resistance, and it is found that its value is higher than the standard requirement. The ground resistance value is adjusted to meet the electromagnetic compatibility test accuracy standard of the electromagnetic cooker. The standard ground resistance value is 4 ohms, the measured ground resistance value is 6 ohms, and the adjusted ground resistance value is to reduce the ground resistance value to 4 ohms by improving the grounding system; it is assumed that a radiation emission test is performed, and the correct test distance needs to be set. According to the standard, the test distance should be set to 3 meters, the standard test distance is 3 meters, and the actual test distance is 2.5 meters. The adjusted test distance is to adjust the test distance to 3 meters. It is assumed that the radiation emission level of an electromagnetic cooker is measured, and the original measurement value is 65dBμV / m, the adjusted measurement value needs to be calculated, assuming that the noise level is reduced by 4dB after the filter is adjusted, the adjusted signal strength = original signal strength - noise reduction, the adjusted signal strength = 65dBμV / m-4dB = 61dBμV / m, the grounding resistance adjustment has little effect on the radiation emission level, assuming that the measurement value does not change after the grounding resistance is adjusted, the adjusted signal strength = 50dBμV / m, according to the standard, the adjustment of the test distance will affect the measurement value, assuming that the test distance is adjusted from 2.5 meters to 3 meters, the radiation emission level is reduced by 3dB, the adjusted signal strength = adjusted signal strength - test distance adjustment impact, adjusted signal strength = 50dBμV / m-3dB = 47dBμV / m, by adjusting the filter settings, grounding resistance value and test distance, the radiation emission level of the induction cooker is reduced from the original 65dBμV / m to 47dBμV / m, and the accuracy of the electromagnetic compatibility test of the induction cooker is improved.

[0144] like Figure 3As shown, it is a structural diagram of the electromagnetic compatibility test data processing system of the Internet of Things provided by an embodiment of the present invention. The electromagnetic compatibility test data processing system of the Internet of Things provided by an embodiment of the present invention includes: an electromagnetic compatibility test data collection module for electromagnetic cookers, an electromagnetic compatibility test data analysis module for electromagnetic cookers, a comprehensive analysis module and an electromagnetic compatibility test module for optimizing and adjusting the electromagnetic cooker: an electromagnetic compatibility test data collection module for electromagnetic cookers: used to collect and process the electromagnetic compatibility test data of electromagnetic cookers; an electromagnetic compatibility test data analysis module for electromagnetic cookers: used to analyze the electromagnetic compatibility test data of electromagnetic cookers to obtain the electromagnetic compatibility test anti-interference evaluation index of the electromagnetic cooker and the electromagnetic compatibility test signal volatility evaluation index of the electromagnetic cooker; a comprehensive analysis module Block: used for comprehensive analysis to obtain the electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker; optimize and adjust the electromagnetic compatibility test module of the electromagnetic cooker: used to compare and analyze the electromagnetic cooker electromagnetic compatibility test anti-interference evaluation index with the first threshold of the electromagnetic compatibility test anti-interference evaluation index, and optimize and adjust the electromagnetic cooker electromagnetic compatibility test anti-interference ability; compare and analyze the electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index with the second threshold of the electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index, and optimize and adjust the electromagnetic cooker electromagnetic compatibility test signal fluctuation; compare and analyze the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index with the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index comprehensive threshold, and optimize and adjust the electromagnetic cooker electromagnetic compatibility test accuracy.

[0145] There are a few points to note:

[0146] (1) The drawings of the embodiments of the present invention only relate to the structures related to the embodiments of the present invention, and other structures may refer to the general design.

[0147] (2) For the sake of clarity, in the drawings used to describe the embodiments of the present invention, the thickness of the layers or regions is exaggerated or reduced, that is, these drawings are not drawn according to the actual scale. It is understood that when an element such as a layer, film, region or substrate is referred to as being "on" or "under" another element, the element may be "directly" "on" or "under" the other element or there may be intermediate elements.

[0148] (3) In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to obtain new embodiments.

[0149] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. The protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A method for processing electromagnetic compatibility test data based on the Internet of Things, characterized in that: The following steps are involved: Collect and process electromagnetic compatibility test data of induction cookers; Analyze the electromagnetic compatibility test data of the electromagnetic cooker to obtain the electromagnetic compatibility test anti-interference evaluation index of the electromagnetic cooker and the electromagnetic compatibility test signal volatility evaluation index of the electromagnetic cooker; Comprehensive analysis yields the electromagnetic compatibility test accuracy evaluation index for electromagnetic cookers; Compare and analyze the electromagnetic cooker electromagnetic compatibility test anti-interference evaluation index with the first threshold of the electromagnetic cooker electromagnetic compatibility test anti-interference evaluation index, and optimize and adjust the electromagnetic cooker electromagnetic compatibility test anti-interference ability; Compare and analyze the electromagnetic cooker electromagnetic compatibility test signal volatility assessment index and the electromagnetic cooker electromagnetic compatibility test signal volatility assessment index second threshold, and optimize and adjust the electromagnetic cooker electromagnetic compatibility test signal volatility; Compare and analyze the electromagnetic compatibility test accuracy evaluation index of induction cookers with the comprehensive threshold of the electromagnetic compatibility test accuracy evaluation index of induction cookers, and optimize and adjust the electromagnetic compatibility test accuracy of induction cookers.

2. The electromagnetic compatibility test data processing method based on the Internet of Things according to claim 1 is characterized in that: The specific steps of collecting and processing electromagnetic compatibility test data of electromagnetic cookers are as follows: Collect the original data of electromagnetic compatibility test of electromagnetic cooker through sensor equipment; The electromagnetic cooker electromagnetic compatibility test raw data is cleaned and denoised to obtain the electromagnetic cooker electromagnetic compatibility test data, wherein the electromagnetic cooker electromagnetic compatibility test data includes the electromagnetic cooker electromagnetic compatibility test anti-interference data and the electromagnetic cooker electromagnetic compatibility test signal volatility data.

3. The electromagnetic compatibility test data processing method based on the Internet of Things according to claim 1 is characterized in that: The specific steps of obtaining the electromagnetic cooker electromagnetic compatibility test anti-interference evaluation index are as follows: Recording the electromagnetic cooker electromagnetic compatibility test anti-interference detection time as the first preset time electromagnetic cooker electromagnetic compatibility test anti-interference detection point; Obtaining power supply voltage fluctuation at an electromagnetic cooker electromagnetic compatibility test anti-interference detection point at a first preset time through an EMC test device; Obtaining the filter cutoff frequency of the electromagnetic cooker electromagnetic compatibility test anti-interference detection point at the first preset time through a spectrum analyzer; The temperature of the electromagnetic cooker electromagnetic compatibility test anti-interference detection point at the first preset time is obtained by the temperature sensor; The humidity of the electromagnetic cooker electromagnetic compatibility test anti-interference detection point at the first preset time is obtained through the humidity sensor; The electromagnetic interference intensity of the electromagnetic cooker electromagnetic compatibility test anti-interference detection point at the first preset time is obtained by the current probe; The signal power of the electromagnetic cooker electromagnetic compatibility test anti-interference detection point at the first preset time is obtained by a spectrum analyzer; The noise power of the electromagnetic cooker electromagnetic compatibility test anti-interference detection point at the first preset time is obtained by a spectrum analyzer; The electromagnetic compatibility test anti-interference data of the electromagnetic cooker includes power supply voltage fluctuation, filter cut-off frequency, temperature, humidity, electromagnetic interference intensity, signal power and noise power; The electromagnetic compatibility test anti-interference evaluation index of the electromagnetic cooker is obtained based on the electromagnetic compatibility test anti-interference data analysis of the electromagnetic cooker.

4. The electromagnetic compatibility test data processing method based on the Internet of Things according to claim 1 is characterized in that: The specific steps of obtaining the electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index are as follows: Recording the electromagnetic cooker electromagnetic compatibility test signal fluctuation detection time as the second preset time electromagnetic cooker electromagnetic compatibility test signal fluctuation detection point; Obtaining the signal drift rate of the electromagnetic cooker electromagnetic compatibility test signal volatility detection point at a second preset time through an oscilloscope; The thermal noise of the electronic components at the second preset time electromagnetic compatibility test signal fluctuation detection point is obtained by an oscilloscope; Obtaining the positive peak amplitude of the signal at the second preset time electromagnetic compatibility test signal fluctuation detection point by a voltmeter; Obtaining the negative peak amplitude of the signal at the second preset time electromagnetic compatibility test signal fluctuation detection point by a voltmeter; Obtaining power supply voltage fluctuation at a second preset time electromagnetic compatibility test signal fluctuation detection point of the electromagnetic cooker through the EMC test equipment; The mechanical vibration frequency of the electromagnetic cooker electromagnetic compatibility test signal fluctuation detection point at the second preset time is obtained by the signal conditioner; The electromagnetic interference intensity of the electromagnetic cooker electromagnetic compatibility test signal fluctuation detection point at the second preset time is obtained by the current probe; The electromagnetic compatibility test signal volatility data of the electromagnetic cooker includes signal drift rate, electronic component noise, signal positive peak amplitude, signal negative peak amplitude, power supply voltage fluctuation, mechanical vibration frequency and electromagnetic interference intensity; The electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index is obtained based on the electromagnetic cooker electromagnetic compatibility test signal volatility data analysis.

5. The electromagnetic compatibility test data processing method based on the Internet of Things according to claim 2 is characterized in that: The specific steps of obtaining the electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker through comprehensive analysis are as follows: Recording the electromagnetic cooker electromagnetic compatibility test accuracy detection time as the third preset time electromagnetic cooker electromagnetic compatibility test accuracy detection point; The ground resistance value of the electromagnetic compatibility test accuracy detection point of the electromagnetic cooker at the third preset time is obtained by a ground resistance tester; The temperature of the electromagnetic cooker electromagnetic compatibility test accuracy detection point at the third preset time is obtained by an infrared thermometer; The electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker is obtained through comprehensive analysis of the electromagnetic compatibility test anti-interference evaluation index, the electromagnetic compatibility test signal volatility evaluation index, the grounding resistance value and the temperature.

6. The electromagnetic compatibility test data processing method based on the Internet of Things according to claim 1 is characterized in that: The specific steps of optimizing and adjusting the electromagnetic cooker's electromagnetic compatibility test anti-interference ability are as follows: If the electromagnetic compatibility test anti-interference evaluation index of the electromagnetic cooker is greater than or equal to the first threshold value of the electromagnetic compatibility test anti-interference evaluation index of the electromagnetic cooker, there is no need to optimize and adjust the electromagnetic compatibility test anti-interference capability of the electromagnetic cooker; If the electromagnetic compatibility test anti-interference evaluation index of the electromagnetic cooker is lower than the first threshold value of the electromagnetic compatibility test anti-interference evaluation index of the electromagnetic cooker, the cutoff frequency and bandwidth of the filter are controlled through the electromagnetic compatibility analysis software, and the electromagnetic interference is compensated and filtered through the software.

7. The electromagnetic compatibility test data processing method based on the Internet of Things according to claim 1 is characterized in that: The specific steps of optimizing and adjusting the electromagnetic compatibility test signal fluctuation of the electromagnetic cooker are: If the electromagnetic cooker electromagnetic compatibility test signal volatility assessment index is lower than or equal to the electromagnetic cooker electromagnetic compatibility test signal volatility assessment index second threshold value, then there is no need to optimize and adjust the electromagnetic cooker electromagnetic compatibility test signal volatility; If the electromagnetic cooker electromagnetic compatibility test signal volatility assessment index is greater than the electromagnetic cooker electromagnetic compatibility test signal volatility assessment index second threshold, a filter is added to reduce noise and interference in the signal, and wireless technology is used to reduce electromagnetic interference caused by cables.

8. The electromagnetic compatibility test data processing method based on the Internet of Things according to claim 1 is characterized in that: The specific steps of comparing and analyzing the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index with the electromagnetic cooker electromagnetic compatibility test accuracy evaluation index comprehensive threshold are as follows: Extracting the comprehensive threshold of the electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker from the electromagnetic compatibility database, comparing the electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker with the comprehensive threshold of the electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker, if the electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker is greater than or equal to the comprehensive threshold of the electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker, then the electromagnetic compatibility data processing is accurate; if the electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker is less than the comprehensive threshold of the electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker, then the electromagnetic compatibility data processing is inaccurate; If the EMC data processing is accurate, there is no need to optimize and adjust the accuracy of the EMC test of the induction cooker; If the EMC data processing is inaccurate, adjust the filter settings to remove noise and interference, adjust the grounding resistance value, and adjust the distance between the induction cooker and the receiving antenna to the specified value.

9. The electromagnetic compatibility test data processing method based on the Internet of Things according to claim 1 is characterized in that: The specific steps of analyzing and obtaining the electromagnetic compatibility test accuracy evaluation index of the electromagnetic cooker are: σ1+σ2=1; φ1+φ2=1; Wherein, η represents the accuracy evaluation index of electromagnetic compatibility test of electromagnetic cooker; It represents the ground resistance value correction coefficient at the S0th electromagnetic compatibility test accuracy detection point of the electromagnetic cooker; It represents the temperature correction coefficient at the S0th electromagnetic compatibility test accuracy detection point of the electromagnetic cooker; It represents the electromagnetic compatibility test anti-interference evaluation index of the electromagnetic cooker at the K0th electromagnetic compatibility test anti-interference detection point; The electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index representing the electromagnetic cooker electromagnetic compatibility test signal volatility detection point T0; Indicates the grounding resistance value at the S0th electromagnetic compatibility test accuracy detection point of the electromagnetic cooker; P1 represents the standard value of grounding resistance, which is the preset standard value of grounding resistance obtained from the electromagnetic compatibility database; Indicates the temperature at the S0th electromagnetic compatibility test accuracy detection point of the electromagnetic cooker; W1 represents the temperature standard value, which is the preset temperature standard value obtained from the electromagnetic compatibility database; σ1 is the influencing weight factor of the electromagnetic compatibility test anti-interference evaluation index of the preset electromagnetic cooker obtained from the electromagnetic compatibility database; σ2 is the influence weight factor of the preset electromagnetic cooker electromagnetic compatibility test signal volatility assessment index obtained from the electromagnetic compatibility database; φ1 is the preset ground resistance value correction factor obtained from the electromagnetic compatibility database; φ2 is the preset temperature correction factor obtained from the electromagnetic compatibility database.

10. An electromagnetic compatibility test data processing system based on the Internet of Things, characterized in that: include: Module for collecting electromagnetic compatibility test data of electromagnetic cookers, module for analyzing electromagnetic compatibility test data of electromagnetic cookers, comprehensive analysis module and module for optimizing and adjusting electromagnetic compatibility test of electromagnetic cookers: The module for collecting electromagnetic compatibility test data of electromagnetic cookers is used to collect and process electromagnetic compatibility test data of electromagnetic cookers; Electromagnetic compatibility test data analysis module for electromagnetic cookers: used to analyze electromagnetic compatibility test data for electromagnetic cookers, obtain electromagnetic cooker electromagnetic compatibility test anti-interference evaluation index and electromagnetic cooker electromagnetic compatibility test signal volatility evaluation index; Comprehensive analysis module: used for comprehensive analysis to obtain the accuracy evaluation index of electromagnetic compatibility test of electromagnetic cooker; Optimize and adjust the electromagnetic compatibility test module of the electromagnetic cooker: it is used to compare and analyze the electromagnetic cooker electromagnetic compatibility test anti-interference evaluation index with the first threshold of the electromagnetic cooker electromagnetic compatibility test anti-interference evaluation index, and optimize and adjust the electromagnetic cooker electromagnetic compatibility test anti-interference capability; compare and analyze the electromagnetic cooker electromagnetic compatibility test signal volatility assessment index with the second threshold of the electromagnetic cooker electromagnetic compatibility test signal volatility assessment index, and optimize and adjust the electromagnetic cooker electromagnetic compatibility test signal fluctuation; compare and analyze the electromagnetic cooker electromagnetic compatibility test accuracy assessment index with the electromagnetic cooker electromagnetic compatibility test accuracy assessment index comprehensive threshold, and optimize and adjust the electromagnetic cooker electromagnetic compatibility test accuracy.

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