SF6 gas quantitative live detection system based on ICD electric ion capture

Abstract

The invention discloses an SF6 gas quantitative live detection system based on ICD electric ion capture, relates to the technical field of SF6 gas live detection, and aims to solve the problem of inaccurate detection data during SF6 gas detection. High-energy electrons generated by high-voltage pulses can effectively ionize air molecules, and then interact with sampling gas molecules to form negative ions. By means of the process, even trace SF6 gas can be effectively detected, the sensitivity of the system is improved, in the SF6 gas detection process, the system can recognize the SF6 gas in a high-selectivity mode through the specific negative ion forming and migration process, interference of other gas is reduced, and due to the fact that the ionization and migration processes are very rapid, the detection accuracy is greatly improved. The existence and concentration change of the SF6 gas can be detected in real time, the concentration of the SF6 gas can be detected through conductivity calculation, and other physical or chemical properties of the gas can be indirectly reflected.

Description

Technical Field

[0001] The present invention relates to the technical field of SF6 gas charge detection, and in particular to a SF6 gas quantitative charge detection system based on ICD ion capture. Background Art

[0002] SF6 gas live detection refers to a technical means of conducting on-site detection of SF6 (sulfur hexafluoride) gas and its related parameters when power equipment is in operation.

[0003] The patent application with publication number CN116840340A discloses a gas detection device and method, which mainly uses a first sensor and a second sensor, and reduces the frequency of use of the first sensor by making the first sensor work intermittently, thereby extending the service life of the first sensor. The processing module for processing data can at least build a calibration model based on the first gas data and the second gas data collected at the same time point. The processing module calibrates the second gas data collected by the second sensor in real time based on the calibration model, thereby obtaining the detection result of the gas detection device for organic volatile gases. Although the above patent solves the problem of gas detection, it also includes the following problems in actual operation: 1. The patent with publication number CN116840340A uses photoelectric ionization technology to detect SF6 gas. Compared with ICD technology, this detection technology is different in principle and implementation method. In addition, the photoelectric ionization technology is not sensitive enough to the detected gas and is easily interfered by background gas.

[0004] 2. The detection gas is not effectively analyzed, resulting in an inability to make an accurate assessment based on the gas analysis results.

[0005] 3. There is no targeted early warning judgment on the detected SF6 gas, which results in the staff being unable to perform early warning operations in a timely manner. Summary of the invention

[0006] The purpose of the present invention is to provide a quantitative SF6 gas charge detection system based on ICD ion capture. The ICD ion capture technology has extremely high detection sensitivity for highly electronegative compounds such as SF6, and its detection limit can reach a very low concentration level. The ICD can accurately distinguish SF6 gas from other non-target gases, improving the selectivity of detection. Once the sampled gas enters the ion detection device, it can quickly react with positive ions and free electrons to form negative ions and be detected. This fast response mechanism enables the system to reflect the concentration changes of SF6 gas in real time. Through conductivity calculation, not only can the concentration of SF6 gas be detected, but also other physical or chemical properties of the gas can be indirectly reflected, which can solve the problems in the prior art.

[0007] To achieve the above object, the present invention provides the following technical solutions: The SF6 gas quantitative charge detection system based on ICD ion capture includes: SF6 gas sampling preparation unit for: Use ion detection equipment to sample gas in the gas monitoring area, and perform a functional test on the ion detection equipment before sampling gas, and perform gas sampling after the functional test is qualified; SF6 gas detection unit for: The sampled gas is detected by ICD, and the detected gas is marked as the target detection gas; SF6 gas analysis unit for: The target detection gas is subjected to signal data conversion, and the concentration data of the target detection gas is obtained after the signal data conversion. The data anomaly screening is performed according to the concentration data, and the SF6 gas analysis data is obtained after the data anomaly screening; SF6 gas alarm transmission unit for: The SF6 gas analysis data is differentiated according to the warning levels, a warning report is generated for the SF6 gas analysis data in different warning levels, and alarm processing is performed according to the warning report.

[0008] Preferably, the SF6 gas sampling preparation unit comprises: Testing equipment function testing module, used for: The ion detection equipment includes lighting, lithium battery, display screen, sensor, sampling probe and alarm; Before the sampling probe samples gas in the gas monitoring area, first perform a functional test on the lighting, lithium battery, display screen, sensor, sampling probe and alarm; Among them, the lighting lamp is tested for lighting status and darkness simulation; the lithium battery is tested for power, battery life and charging function; the display screen is tested for clarity, brightness and touch response; the sensor is tested for calibration, zero point and sensitivity; the sampling probe is tested for air tightness, cleanliness and sampling; the alarm is tested for threshold and response; After the lighting, lithium battery, display screen, sensor, sampling probe and alarm have been tested and found to be qualified, preparations for gas sampling will be carried out.

[0009] Preferably, the touch response detection of the display screen includes: Real-time acquisition of the corresponding touch response duration during the display screen touch process; Comparing the touch response duration corresponding to each touch of the display screen with a preset response duration threshold; When the touch response duration corresponding to the touch display screen exceeds a preset response duration threshold, the touch response duration corresponding to each touch of the display screen after the touch response duration exceeds the preset response duration threshold is recorded in real time; Acquire a touch response evaluation parameter using the touch response duration corresponding to each touch of the display screen after the touch response duration exceeds a preset response duration threshold; The touch response evaluation parameter is obtained by the following formula: ; Wherein, E represents a touch response evaluation parameter; n represents the number of times the display screen is touched after the touch response duration exceeds a preset response duration threshold; T i represents the touch response duration corresponding to the i-th touch of the display screen after the touch response duration exceeds the preset response duration threshold; T i-1 represents the touch response duration corresponding to the i-1th touch of the display screen after the touch response duration exceeds the preset response duration threshold; T y Indicates the preset response time threshold; T m Indicates the touch response duration corresponding to the touch display screen when the touch response duration corresponding to the touch display screen exceeds a preset response duration threshold; comparing the touch response evaluation parameter with a preset evaluation parameter threshold; When the touch response evaluation parameter exceeds a preset evaluation parameter threshold, a touch response abnormality alarm is issued; When the touch response evaluation parameter does not exceed the preset evaluation parameter threshold, the touch response duration corresponding to each touch of the display screen before the touch response duration exceeds the preset response duration threshold is used to perform a secondary touch response abnormality judgment.

[0010] Preferably, when the touch response evaluation parameter does not exceed the preset evaluation parameter threshold, the touch response duration corresponding to each touch of the display screen before the touch response duration exceeds the preset response duration threshold is used to perform a secondary touch response abnormality judgment, including: extracting the touch response evaluation parameter; Extract the preset response time threshold; Using the touch response evaluation parameter to adjust the preset response time threshold, obtaining the adjusted response time threshold, and using the adjusted response time threshold as the second response time threshold; The adjusted response time threshold is obtained by the following formula: ; Among them, T yt Represents the adjusted response time threshold; T yIndicates the preset response time threshold; T m represents the touch response duration corresponding to the touch display screen when the touch response duration corresponding to the touch display screen exceeds the preset response duration threshold; E represents a touch response evaluation parameter; E0 represents a preset evaluation parameter threshold; Extracting the touch response duration that does not exceed the preset response duration threshold, but exceeds the second response duration threshold, from the touch response duration corresponding to each display screen touch before the touch response duration exceeds the preset response duration threshold; The touch response duration that does not exceed the preset response duration threshold but exceeds the second response duration threshold is used as the second touch response duration data; The second touch response duration data is used to determine whether the secondary touch response is abnormal.

[0011] Preferably, using the second touch response duration data to perform secondary touch response abnormality judgment includes: Retrieve the second touch response duration data; Obtaining an evaluation parameter adjustment coefficient using the second touch response duration data; The evaluation parameter adjustment coefficient is obtained by the following formula: ; Wherein, ξ represents the evaluation parameter adjustment coefficient; m represents the number of data corresponding to the second touch response duration data; T y Indicates the preset response time threshold; T yt represents the adjusted response time threshold; E represents the touch response evaluation parameter; T j represents the data value corresponding to the j-th second touch response duration data; The touch response evaluation parameter is adjusted using the evaluation parameter adjustment coefficient to obtain the adjusted touch response evaluation parameter; wherein the adjusted touch response evaluation parameter is obtained by the following formula: ; Among them, E t represents the adjusted touch response evaluation parameter; E represents the touch response evaluation parameter; ξ represents the evaluation parameter adjustment coefficient; ε represents the preset minimum constant, which is used to prevent the value of the internal function of the square root from being 0; T yt Represents the adjusted response time threshold; T y Indicates the preset response time threshold; T m represents the touch response time corresponding to the touch display screen when the touch response time corresponding to the touch display screen exceeds the preset response time threshold; T max Indicates the maximum value of the touch response duration corresponding to each touch of the display screen before the touch response duration exceeds the preset response duration threshold; comparing the adjusted touch response evaluation parameter with a preset evaluation parameter threshold; When the adjusted touch response evaluation parameter exceeds a preset evaluation parameter threshold, a touch response abnormality alarm is issued.

[0012] Preferably, the SF6 gas sampling preparation unit further includes: Gas sampling modules for: The sampling pump is designed at the back end of the built-in sampling probe of the equipment. The gas sample collected by the sampling pump enters the ion detection equipment through the air inlet. The equipment will automatically perform initialization verification after the power is turned on. After the verification is completed, the sampling operation is confirmed on the display screen; Place the sampling probe in the gas monitoring area. After placement, the gas in the gas monitoring area will naturally diffuse into the sampling probe. After the gas diffuses to the sampling probe, the display shows that the sampling is completed, and then the sampled gas is tested.

[0013] Preferably, the SF6 gas detection unit is also used for: The sampled gas is tested by using ICD ion capture technology; Among them, the sampling gas detection process is: S1: The high voltage pulse generator in the electric ion detection equipment generates high voltage pulses, which serve as ion sources and simultaneously generate high energy electrons; S2: When the air in the ion detection device passes through the high-voltage pulse, the high-energy electrons ionize the air molecules, generating positive ions and free electrons; S3: When the sampled gas enters the ionization zone in the ion detection device through the vacuum pump, the free electrons interact with the sampled gas molecules and attach to the gas molecules to form negative ions; S4: Positive ions and negative ions migrate in opposite directions in the electric field, and current is obtained after migration. At the same time, negative ions recombine with positive ions after air ionization to form neutral molecules, which changes the current size. The SF6 gas concentration is detected according to the current size; Finally, the obtained current is marked as the target detection gas.

[0014] Preferably, the SF6 gas analysis unit comprises: Electrical signal conversion module, used for: Calculate the conductivity of the target detection gas; Among them, the conductivity detection sensor is used to confirm the current value in the target detection gas; The voltage signal in the target detection gas is calculated by Ohm's law; The voltage signal is amplified by an amplifier and then denoised by a filter; After denoising, the concentration data of the target detection gas is obtained.

[0015] Preferably, the SF6 gas analysis unit further comprises: Concentration data anomaly screening module, used for: Retrieve standard concentration data of the gas monitoring area from the database; Perform curve data conversion between standard concentration data and concentration data in target detection gas; After the curve data is converted, the curve overlap comparison is performed; According to the curve overlap comparison results, the maximum and average values ​​of SF6 gas ions in the gas monitoring area are obtained; When the curves overlap and compare, the average value of each overlapping curve interaction point is taken as the average value of the ion of SF6 gas, and the value that is not within the preset range of the standard concentration data curve data is taken as the highest value of the ion of SF6 gas, and the highest value is abnormal data; The highest value and the average value are stored independently, and unique numbers are generated when they are stored independently; The maximum and average values ​​are marked as SF6 gas analysis data.

[0016] Preferably, the SF6 gas alarm transmission unit comprises: Warning level differentiation module, used for: Calculate the leakage velocity and annual leakage rate of SF6 gas analysis data; The calculation results of leakage velocity and annual leakage rate are used as early warning data; Compare the warning data with the safety data; Determine the warning level of the warning data based on the comparison results; The warning levels are divided into level one, level two and level three; Report generation transport module for: Generate text and images of warning data in the warning level, wherein the images include bar graphs, curve graphs and pie charts; The generated text and image signals are transmitted to the handheld monitoring terminal and the ion detection device for display. At the same time, different types of alarms are issued on the handheld monitoring terminal and the ion detection device according to different warning levels.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The SF6 gas quantitative charge detection system based on ICD ion capture provided by the present invention ensures the integrity and reliability of the entire detection system through comprehensive detection of each component, realizes comprehensive and real-time monitoring of SF6 gas concentration, automatically initializes the verification function, simplifies the operation process, and reduces human errors. At the same time, after the sampling is completed, the system automatically performs detection without manual intervention, which improves work efficiency.

[0018] 2. The SF6 gas quantitative charged detection system based on ICD ion capture provided by the present invention can effectively ionize air molecules through high-energy electrons generated by high-voltage pulses, and then interact with sampled gas molecules to form negative ions. This process allows even trace amounts of SF6 gas to be effectively detected, improving the sensitivity of the system. In the detection of SF6 gas, the specific negative ion formation and migration process enables the system to highly selectively identify SF6 gas, reducing interference from other gases. Since the ionization and migration process occurs very quickly, the presence and concentration changes of SF6 gas can be detected in real time.

[0019] 3. The SF6 gas quantitative charge detection system based on ICD ion capture provided by the present invention can not only detect the concentration of SF6 gas through conductivity calculation, but also indirectly reflect other physical or chemical properties of the gas. The conductivity detection sensor is highly sensitive to current changes and can capture tiny changes in gas concentration, thereby realizing accurate detection of SF6 gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the SF6 gas quantitative charge detection unit of the present invention; Figure 2 It is a schematic diagram of the SF6 gas ICD ion capture steps of the present invention. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments 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.

[0022] In order to solve the problem that the detection method used in the prior art for detecting ions in SF6 is not accurate enough, thus causing the SF6 gas components to be destroyed, please refer to Figure 1 and Figure 2 , this embodiment provides the following technical solutions: The SF6 gas quantitative charge detection system based on ICD ion capture includes: SF6 gas sampling preparation unit for: Use ion detection equipment to sample gas in the gas monitoring area, and perform a functional test on the ion detection equipment before sampling gas, and perform gas sampling after the functional test is qualified; SF6 gas detection unit for: The sampled gas is detected by ICD, and the detected gas is marked as the target detection gas; SF6 gas analysis unit for: The target detection gas is subjected to signal data conversion, and the concentration data of the target detection gas is obtained after the signal data conversion. The data anomaly screening is performed according to the concentration data, and the SF6 gas analysis data is obtained after the data anomaly screening; SF6 gas alarm transmission unit for: The SF6 gas analysis data is differentiated according to the warning levels, a warning report is generated for the SF6 gas analysis data in different warning levels, and alarm processing is performed according to the warning report.

[0023] Specifically, the SF6 gas sampling preparation unit conducts comprehensive inspection of each component to ensure the integrity and reliability of the entire detection system. The positive ions and free electrons in the SF6 gas detection unit have a specific capture effect on the SF6 molecules in the sampled gas to form negative ions. This specific capture mechanism enables the ICD to accurately distinguish SF6 gas from other non-target gases, thereby improving the selectivity of detection. The SF6 gas analysis unit can be adjusted according to different monitoring needs and safety standards to ensure that the system can accurately capture abnormal situations. The SF6 gas alarm transmission unit can alarm in different ways on the handheld monitoring terminal and the ion detection device according to different warning levels. Among them, the ICD is an ion capture device, and the SF6 gas is detected according to the ion capture technology in the ion capture device.

[0024] SF6 gas sampling preparation unit, including: Testing equipment function testing module, used for: The ion detection equipment includes lighting, lithium battery, display screen, sensor, sampling probe and alarm; Before the sampling probe samples gas in the gas monitoring area, first perform a functional test on the lighting, lithium battery, display screen, sensor, sampling probe and alarm; Among them, the lighting lamp is tested for lighting status and darkness simulation; the lithium battery is tested for power, battery life and charging function; the display screen is tested for clarity, brightness and touch response; the sensor is tested for calibration, zero point and sensitivity; the sampling probe is tested for air tightness, cleanliness and sampling; the alarm is tested for threshold and response; After the lighting, lithium battery, display screen, sensor, sampling probe and alarm have been tested and found to be qualified, preparations for gas sampling will be carried out.

[0025] Specifically, ion detection equipment is mainly used for leakage detection of GIS and SF6 gas-filled equipment in the power industry. The ion detection equipment detects the trace concentration ratio (ppm) of the leaked gas, and can also be converted into gas flow ml / s to display the size of the leakage.

[0026] Specifically, the touch response detection of the display screen includes: Real-time acquisition of the corresponding touch response duration during the display screen touch process; Comparing the touch response duration corresponding to each touch of the display screen with a preset response duration threshold; When the touch response duration corresponding to the touch display screen exceeds a preset response duration threshold, the touch response duration corresponding to each touch of the display screen after the touch response duration exceeds the preset response duration threshold is recorded in real time; Acquire a touch response evaluation parameter using the touch response duration corresponding to each touch of the display screen after the touch response duration exceeds a preset response duration threshold; The touch response evaluation parameter is obtained by the following formula: ; Wherein, E represents a touch response evaluation parameter; n represents the number of times the display screen is touched after the touch response duration exceeds a preset response duration threshold; T i represents the touch response duration corresponding to the i-th touch of the display screen after the touch response duration exceeds the preset response duration threshold; T i-1 represents the touch response duration corresponding to the i-1th touch of the display screen after the touch response duration exceeds the preset response duration threshold; T y Indicates the preset response time threshold; T m Indicates the touch response duration corresponding to the touch display screen when the touch response duration corresponding to the touch display screen exceeds a preset response duration threshold; comparing the touch response evaluation parameter with a preset evaluation parameter threshold; When the touch response evaluation parameter exceeds a preset evaluation parameter threshold, a touch response abnormality alarm is issued; When the touch response evaluation parameter does not exceed the preset evaluation parameter threshold, the touch response duration corresponding to each touch of the display screen before the touch response duration exceeds the preset response duration threshold is used to perform a secondary touch response abnormality judgment.

[0027] The technical effect of the above technical solution is: by real-time acquisition of the touch response duration during the touch process of the display screen, the changes in touch response can be quickly captured, so as to detect problems in a timely manner. By setting a preset response duration threshold and comparing it with the response duration of each touch, abnormal touch responses can be preliminarily screened out. When the touch response duration exceeds the threshold, further recording and analyzing the response duration of subsequent touches will help to more accurately determine whether the abnormality persists.

[0028] By introducing the touch response evaluation parameter E, the abnormal degree of touch response is quantitatively evaluated. This parameter comprehensively considers the duration of multiple touch responses after the abnormality occurs, as well as the touch response duration and preset threshold when the abnormality occurs, and can more comprehensively reflect the abnormal condition of the touch response. When the touch response evaluation parameter exceeds the preset evaluation parameter threshold, a touch response abnormality alarm is issued to remind the user or maintenance personnel to deal with it in time. If the touch response evaluation parameter does not exceed the threshold, a secondary judgment is made using the previous touch response duration to further ensure the accuracy and reliability of the judgment. By timely detecting and alarming touch response abnormalities, the user experience can be avoided due to problems such as touch insensitivity or delay. At the same time, through quantitative evaluation and secondary judgment, problems can be located and handled more accurately, reducing false alarms and missed alarms.

[0029] In summary, this technical solution realizes the effective monitoring and processing of the touch response of the display screen through real-time acquisition, anomaly detection, quantitative evaluation, alarm and secondary judgment, thereby improving the reliability of the display screen and user experience.

[0030] Specifically, when the touch response evaluation parameter does not exceed the preset evaluation parameter threshold, the touch response duration corresponding to each touch of the display screen before the touch response duration exceeds the preset response duration threshold is used to perform a secondary touch response abnormality judgment, including: extracting the touch response evaluation parameter; Extract the preset response time threshold; Using the touch response evaluation parameter to adjust the preset response time threshold, obtaining the adjusted response time threshold, and using the adjusted response time threshold as the second response time threshold; The adjusted response time threshold is obtained by the following formula: ; Among them, T yt Represents the adjusted response time threshold; T y Indicates the preset response time threshold; T mrepresents the touch response duration corresponding to the touch display screen when the touch response duration corresponding to the touch display screen exceeds the preset response duration threshold; E represents a touch response evaluation parameter; E0 represents a preset evaluation parameter threshold; Extracting the touch response duration that does not exceed the preset response duration threshold, but exceeds the second response duration threshold, from the touch response duration corresponding to each display screen touch before the touch response duration exceeds the preset response duration threshold; The touch response duration that does not exceed the preset response duration threshold but exceeds the second response duration threshold is used as the second touch response duration data; The second touch response duration data is used to determine whether the secondary touch response is abnormal.

[0031] The technical effect of the above technical solution is: by introducing the touch response evaluation parameter, the preset response time threshold is dynamically adjusted to obtain the adjusted response time threshold. This dynamic adjustment method takes into account the previous touch response situation, so that the threshold is more in line with the touch response characteristics of the current display screen, and improves the accuracy and flexibility of the judgment. In the touch data before the touch response time exceeds the preset response time threshold, the touch response time that does not exceed the preset threshold but exceeds the adjusted threshold is further screened out as the second touch response time data. This step helps to distinguish different degrees of touch response anomalies in detail, avoids overreaction to minor anomalies, and can also capture touch responses that are close to abnormal states.

[0032] By using the second touch response duration data to make a secondary touch response abnormality judgment, it is possible to further confirm whether there is an abnormality in the touch response. Since this judgment is based on more detailed screening and dynamically adjusted thresholds, the accuracy of the judgment is improved. After the initial judgment of the touch response abnormality, this technical solution does not immediately draw a conclusion, but adjusts the threshold according to the touch response evaluation parameters and makes a secondary judgment. This processing method makes the entire judgment process more rigorous and comprehensive, avoiding false alarms or missed alarms caused by a single misjudgment. Through timely touch response abnormality detection and a detailed judgment process, touch response problems can be discovered and handled in a timely manner, avoiding a decline in user experience due to problems such as insensitive or delayed touch. At the same time, dynamically adjusting the threshold and carefully screening the abnormalities also help reduce false alarms and missed alarms, further improving user satisfaction.

[0033] In summary, this technical solution achieves more accurate and comprehensive monitoring and processing of the touch response of the display screen through steps such as dynamically adjusting the threshold, carefully screening anomalies and secondary judgment, thereby improving the reliability of the display screen and user experience.

[0034] Specifically, using the second touch response duration data to determine whether the secondary touch response is abnormal includes: Retrieve the second touch response duration data; Obtaining an evaluation parameter adjustment coefficient using the second touch response duration data; The evaluation parameter adjustment coefficient is obtained by the following formula: ; Wherein, ξ represents the evaluation parameter adjustment coefficient; m represents the number of data corresponding to the second touch response duration data; T y Indicates the preset response time threshold; T yt represents the adjusted response time threshold; E represents the touch response evaluation parameter; T j represents the data value corresponding to the j-th second touch response duration data; The touch response evaluation parameter is adjusted using the evaluation parameter adjustment coefficient to obtain the adjusted touch response evaluation parameter; wherein the adjusted touch response evaluation parameter is obtained by the following formula: ; Among them, E t represents the adjusted touch response evaluation parameter; E represents the touch response evaluation parameter; ξ represents the evaluation parameter adjustment coefficient; ε represents the preset minimum constant, which is used to prevent the value of the internal function of the square root from being 0; T yt Represents the adjusted response time threshold; T y Indicates the preset response time threshold; T m represents the touch response time corresponding to the touch display screen when the touch response time corresponding to the touch display screen exceeds the preset response time threshold; T max Indicates the maximum value of the touch response duration corresponding to each touch of the display screen before the touch response duration exceeds the preset response duration threshold; comparing the adjusted touch response evaluation parameter with a preset evaluation parameter threshold; When the adjusted touch response evaluation parameter exceeds a preset evaluation parameter threshold, a touch response abnormality alarm is issued.

[0035] The technical effect of the above technical solution is: by introducing the evaluation parameter adjustment coefficient, the original touch response evaluation parameter is finely adjusted to obtain the adjusted touch response evaluation parameter. This adjustment method takes into account the characteristics of the second touch response duration data, so that the evaluation parameter is more in line with the touch response state of the current display screen, and improves the accuracy of the judgment. In the calculation formula of the evaluation parameter adjustment coefficient, multiple factors such as the number of data of the second touch response duration data, the preset response duration threshold, the adjusted response duration threshold, the touch response evaluation parameter, and the data value of the second touch response duration data are comprehensively considered. This comprehensive consideration makes the adjustment coefficient more comprehensive and accurate, which helps to improve the reliability of the secondary judgment. When calculating the adjusted touch response evaluation parameter, a preset minimum constant is introduced to prevent the value of the internal function of the square root from being 0, thereby avoiding calculation errors and abnormal situations. This processing method enhances the robustness and stability of the algorithm.

[0036] By comparing the adjusted touch response evaluation parameters with the preset evaluation parameter thresholds, it is possible to more sensitively determine whether the touch response is abnormal. Since the evaluation parameters have been finely adjusted, the judgment results are more accurate and reliable. Through timely touch response anomaly detection and accurate judgment process, touch response problems can be discovered and handled in a timely manner to avoid a decline in user experience caused by problems such as touch insensitivity or delays. At the same time, fine-tuning the evaluation parameters and comprehensively considering multiple factors can also help reduce false positives and false negatives, further improving user satisfaction.

[0037] In summary, this technical solution achieves a more accurate and comprehensive secondary judgment of the touch response of the display screen by introducing evaluation parameter adjustment coefficients, comprehensively considering multiple factors, preventing numerical anomalies, and improving the sensitivity of abnormal judgment, thereby improving the reliability of the display screen and user experience.

[0038] Gas sampling modules for: The sampling pump is designed at the back end of the built-in sampling probe of the equipment. The gas sample collected by the sampling pump enters the ion detection equipment through the air inlet. The equipment will automatically perform initialization verification after the power is turned on. After the verification is completed, the sampling operation is confirmed on the display screen; Place the sampling probe in the gas monitoring area. After placement, the gas in the gas monitoring area will naturally diffuse into the sampling probe. After the gas diffuses to the sampling probe, the display shows that the sampling is completed, and then the sampled gas is tested.

[0039] Specifically, through calibration, zero point and sensitivity detection, it is ensured that the sensor can accurately capture the concentration changes of SF6 gas, thereby improving the accuracy of the entire detection system. Air tightness, cleanliness and sampling detection ensure the reliability of the sampling probe and avoid sampling errors caused by probe problems. The detection of power, battery life and charging function ensures the stability of the equipment during long-term use and avoids detection interruptions or inaccurate data due to battery problems. The detection of clarity, brightness and touch response ensures that the operator can read the detection data clearly and accurately, thereby improving the overall stability of the system. The lighting status and dark simulation detection enable the equipment to maintain a good working condition under different lighting conditions, providing operators with a better visual experience. The threshold and response detection ensures that when the SF6 gas concentration exceeds the safety threshold, the alarm can be issued in a timely and accurate manner to remind the operator to take corresponding measures to ensure personnel safety. Through comprehensive detection of each component, the integrity and reliability of the entire detection system are ensured, and comprehensive and real-time monitoring of SF6 gas concentration is achieved. The automatic initialization verification function simplifies the operation process and reduces human errors. At the same time, after sampling is completed, the system automatically detects without manual intervention, which improves work efficiency. The sampling and detection results are displayed in real time on the display screen, and the operator can quickly understand the SF6 concentration in the gas monitoring area. This is of great significance for timely discovery and handling of potential gas leakage problems. At the same time, the front end of the detector is equipped with a lighting lamp, which is suitable for use in dark indoor GIS environments.

[0040] SF6 gas detection unit is also used for: The sampled gas is tested by using ICD ion capture technology; Among them, the sampling gas detection process is: S1: The high voltage pulse generator in the electric ion detection equipment generates high voltage pulses, which serve as ion sources and simultaneously generate high energy electrons; S2: When the air in the ion detection device passes through the high-voltage pulse, the high-energy electrons ionize the air molecules, generating positive ions and free electrons; S3: When the sampled gas enters the ionization zone in the ion detection device through the vacuum pump, the free electrons interact with the sampled gas molecules and attach to the gas molecules to form negative ions; S4: Positive ions and negative ions migrate in opposite directions in the electric field, and current is obtained after migration. At the same time, negative ions recombine with positive ions after air ionization to form neutral molecules, which changes the current size. The SF6 gas concentration is detected according to the current size; Finally, the obtained current is marked as the target detection gas.

[0041] Specifically, the high-energy electrons generated by high-voltage pulses can effectively ionize air molecules, and then interact with the sampled gas molecules to form negative ions. This process allows even trace amounts of SF6 gas to be effectively detected, improving the sensitivity of the system. ICD technology can distinguish between different types of gas molecules because each gas molecule interacts with electrons differently. In the detection of SF6 gas, the specific negative ion formation and migration process enables the system to identify SF6 gas with high selectivity and reduce interference from other gases. Since the ionization and migration processes occur very quickly, the system can detect the presence and concentration changes of SF6 gas in real time. This is particularly important for monitoring scenarios that require a quick response. By measuring the current obtained after migration, the system can quantitatively determine the concentration of SF6 gas. This is crucial for application scenarios that require precise measurement of gas concentrations (such as environmental monitoring, industrial safety, etc.). Due to the detection principle of ICD technology, the background noise is usually low, which can improve the signal-to-noise ratio and thus improve the accuracy of detection. At the same time, when there is a serious leak or the SF5 concentration reaches 100%, it will not contaminate or damage the detector, and the high-sensitivity detection leak reaches 0.1ppm. The technical parameters of the high-voltage pulse are voltage DC1500V and frequency 1.5K.

[0042] In order to solve the problem in the prior art that the detected gas is not effectively analyzed, resulting in the inability to accurately evaluate the gas analysis results, please refer to Figure 1 and Figure 2 , this embodiment provides the following technical solutions: SF6 gas analysis unit, including: Electrical signal conversion module, used for: Calculate the conductivity of the target detection gas; Among them, the conductivity detection sensor is used to confirm the current value in the target detection gas; The voltage signal in the target detection gas is calculated by Ohm's law; The voltage signal is amplified by an amplifier and then denoised by a filter; After denoising, the concentration data of the target detection gas is obtained.

[0043] Specifically, conductivity calculation can not only detect the concentration of SF6 gas, but also indirectly reflect other physical or chemical properties of the gas, such as purity, temperature effect, etc. (although the direct relationship between conductivity and SF6 concentration may not be direct, it can be used as an auxiliary detection method). The conductivity detection sensor is highly sensitive to current changes and can capture tiny changes in gas concentration, thereby achieving accurate detection of SF6 gas. By amplifying the voltage signal through an amplifier and using a filter for denoising, the system can significantly improve the signal-to-noise ratio of the signal, reduce the impact of external interference on the detection results, and improve the accuracy and reliability of detection.

[0044] Concentration data anomaly screening module, used for: Retrieve standard concentration data of the gas monitoring area from the database; Perform curve data conversion between standard concentration data and concentration data in target detection gas; After the curve data is converted, the curve overlap comparison is performed; According to the curve overlap comparison results, the maximum and average values ​​of SF6 gas ions in the gas monitoring area are obtained; When the curves overlap and compare, the average value of each overlapping curve interaction point is taken as the average value of the ion of SF6 gas, and the value that is not within the preset range of the standard concentration data curve data is taken as the highest value of the ion of SF6 gas, and the highest value is abnormal data; The highest value and the average value are stored independently, and unique numbers are generated when they are stored independently; The maximum and average values ​​are marked as SF6 gas analysis data.

[0045] Specifically, the standard concentration data is retrieved from the database to ensure the consistency and accuracy of the data benchmark during the analysis process. Through curve data conversion and overlap comparison, the difference between the target detection gas concentration and the standard concentration can be intuitively observed, providing a reliable basis for subsequent abnormal identification and risk assessment. Through curve overlap comparison, the system can accurately calculate the maximum and average values ​​of SF6 gas ions. The maximum value, as the identification standard for abnormal data, helps to promptly detect potential gas leaks or exceeding the standard. The calculation of the average value provides an overall trend and stability assessment of the gas concentration. In the process of curve overlap comparison, the maximum value (abnormal data) is identified through a preset range. This method has high flexibility and accuracy. It can be adjusted according to different monitoring needs and safety standards to ensure that the system can accurately capture abnormal situations, store the maximum and average values ​​independently, and generate unique numbers, which is conducive to centralized management and long-term traceability of data. This provides great convenience for subsequent data analysis, report generation and troubleshooting.

[0046] In order to solve the problem in the prior art that there is no targeted early warning judgment for the detected SF6 gas, which results in the staff being unable to perform early warning operations in a timely manner, please refer to Figure 1 and Figure 2 , this embodiment provides the following technical solutions: SF6 gas alarm transmission unit, comprising: Warning level differentiation module, used for: Calculate the leakage velocity and annual leakage rate of SF6 gas analysis data; The calculation results of leakage velocity and annual leakage rate are used as early warning data; Compare the warning data with the safety data; Determine the warning level of the warning data based on the comparison results; The warning levels are divided into level one, level two and level three.

[0047] Report generation transport module for: Generate text and images of warning data in the warning level, wherein the images include bar graphs, curve graphs and pie charts; The generated text and image signals are transmitted to the handheld monitoring terminal and the ion detection device for display. At the same time, different types of alarms are issued on the handheld monitoring terminal and the ion detection device according to different warning levels.

[0048] Specifically, the SF6 gas is quantitatively analyzed, and the leakage rate and annual leakage rate are immediately calculated. This immediacy allows any potential leakage to be quickly discovered and handled, thereby avoiding the accumulation and expansion of leakage problems. The warning data is divided into primary, secondary and tertiary alarms according to the leakage rate and annual leakage rate. This multi-level warning mechanism helps to grade leaks of different severity. High-level alarms can attract more attention and faster response, thereby more effectively controlling leakage problems. The warning data is not only presented in text form, but also in graphical form such as bar charts, curve charts and pie charts. This intuitive display method enables staff to understand the data more quickly and make accurate judgments. The generated text and image signals can be transmitted to handheld monitoring terminals and ion detection equipment to achieve remote monitoring and real-time feedback. This greatly enhances the flexibility and convenience of the system, allowing staff to grasp the monitoring situation anytime and anywhere. According to different warning levels, the system can alarm in different ways on handheld monitoring terminals and ion detection equipment. This diversified alarm method ensures the timeliness and effectiveness of the alarm, and further improves the emergency response capability of the system.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. SF6 gas quantitative charge detection system based on ICD ion capture, characterized in that: include: SF6 gas sampling preparation unit for: Use ion detection equipment to sample gas in the gas monitoring area, and perform a functional test on the ion detection equipment before sampling gas, and perform gas sampling after the functional test is qualified; SF6 gas detection unit for: The sampled gas is detected using the ICD principle, and the detected gas is marked as the target detection gas; SF6 gas analysis unit for: The target detection gas is subjected to signal data conversion, and the concentration data of the target detection gas is obtained after the signal data conversion. The data anomaly screening is performed according to the concentration data, and the SF6 gas analysis data is obtained after the data anomaly screening; SF6 gas alarm transmission unit for: The SF6 gas analysis data is differentiated according to the warning levels, a warning report is generated for the SF6 gas analysis data in different warning levels, and alarm processing is performed according to the warning report.

2. The SF6 gas quantitative charge detection system based on ICD ion capture according to claim 1 is characterized in that: The SF6 gas sampling preparation unit comprises: Testing equipment function testing module, used for: The ion detection equipment includes lighting, lithium battery, display screen, sensor, sampling probe and alarm; Before the sampling probe samples gas in the gas monitoring area, first perform a functional test on the lighting, lithium battery, display screen, sensor, sampling probe and alarm; Among them, the lighting lamp is tested for lighting status and darkness simulation; the lithium battery is tested for power, battery life and charging function; the display screen is tested for clarity, brightness and touch response; the sensor is tested for calibration, zero point and sensitivity; the sampling probe is tested for air tightness, cleanliness and sampling; the alarm is tested for threshold and response; After the lighting, lithium battery, display screen, sensor, sampling probe and alarm have been tested and found to be qualified, preparations for gas sampling will be carried out.

3. The SF6 gas quantitative charge detection system based on ICD ion capture according to claim 2 is characterized in that: The touch response detection of the display screen includes: Real-time acquisition of the corresponding touch response duration during the display screen touch process; Comparing the touch response duration corresponding to each touch of the display screen with a preset response duration threshold; When the touch response duration corresponding to the touch display screen exceeds a preset response duration threshold, the touch response duration corresponding to each touch of the display screen after the touch response duration exceeds the preset response duration threshold is recorded in real time; Acquire a touch response evaluation parameter using the touch response duration corresponding to each touch of the display screen after the touch response duration exceeds a preset response duration threshold; The touch response evaluation parameter is obtained by the following formula: ； Wherein, E represents a touch response evaluation parameter; n represents the number of times the display screen is touched after the touch response duration exceeds a preset response duration threshold; T i represents the touch response duration corresponding to the i-th touch of the display screen after the touch response duration exceeds the preset response duration threshold; T i-1 represents the touch response duration corresponding to the i-1th touch of the display screen after the touch response duration exceeds the preset response duration threshold; T y Indicates the preset response time threshold; T m Indicates the touch response duration corresponding to the touch display screen when the touch response duration corresponding to the touch display screen exceeds a preset response duration threshold; comparing the touch response evaluation parameter with a preset evaluation parameter threshold; When the touch response evaluation parameter exceeds a preset evaluation parameter threshold, a touch response abnormality alarm is issued; When the touch response evaluation parameter does not exceed the preset evaluation parameter threshold, the touch response duration corresponding to each touch of the display screen before the touch response duration exceeds the preset response duration threshold is used to perform a secondary touch response abnormality judgment.

4. The SF6 gas quantitative charge detection system based on ICD ion capture according to claim 3 is characterized in that: When the touch response evaluation parameter does not exceed the preset evaluation parameter threshold, the touch response duration corresponding to each touch of the display screen before the touch response duration exceeds the preset response duration threshold is used to perform a secondary touch response abnormality judgment, including: extracting the touch response evaluation parameter; Extract the preset response time threshold; Using the touch response evaluation parameter to adjust the preset response time threshold, obtaining the adjusted response time threshold, and using the adjusted response time threshold as the second response time threshold; The adjusted response time threshold is obtained by the following formula: ； Among them, T yt Represents the adjusted response time threshold; T y Indicates the preset response time threshold; T m represents the touch response duration corresponding to the touch display screen when the touch response duration corresponding to the touch display screen exceeds the preset response duration threshold; E represents a touch response evaluation parameter; E0 represents a preset evaluation parameter threshold; Extracting the touch response duration that does not exceed the preset response duration threshold, but exceeds the second response duration threshold, from the touch response duration corresponding to each display screen touch before the touch response duration exceeds the preset response duration threshold; taking the touch response duration that does not exceed the preset response duration threshold but exceeds the second response duration threshold as the second touch response duration data; The second touch response duration data is used to determine whether the secondary touch response is abnormal.

5. The SF6 gas quantitative charge detection system based on ICD ion capture according to claim 4 is characterized in that: Using the second touch response duration data to determine whether the secondary touch response is abnormal includes: Retrieve the second touch response duration data; Obtaining an evaluation parameter adjustment coefficient using the second touch response duration data; The evaluation parameter adjustment coefficient is obtained by the following formula: ； Wherein, ξ represents the evaluation parameter adjustment coefficient; m represents the number of data corresponding to the second touch response duration data; T y Indicates the preset response time threshold; T yt represents the adjusted response time threshold; E represents the touch response evaluation parameter; T j represents the data value corresponding to the j-th second touch response duration data; The touch response evaluation parameter is adjusted using the evaluation parameter adjustment coefficient to obtain the adjusted touch response evaluation parameter; wherein the adjusted touch response evaluation parameter is obtained by the following formula: ； Among them, E t represents the adjusted touch response evaluation parameter; E represents the touch response evaluation parameter; ξ represents the evaluation parameter adjustment coefficient; ε represents the preset minimum constant, which is used to prevent the value of the internal function of the square root from being 0; T yt Represents the adjusted response time threshold; T y Indicates the preset response time threshold; T m represents the touch response time corresponding to the touch display screen when the touch response time corresponding to the touch display screen exceeds the preset response time threshold; T max Indicates the maximum value of the touch response duration corresponding to each touch of the display screen before the touch response duration exceeds the preset response duration threshold; comparing the adjusted touch response evaluation parameter with a preset evaluation parameter threshold; When the adjusted touch response evaluation parameter exceeds a preset evaluation parameter threshold, a touch response abnormality alarm is issued.

6. The SF6 gas quantitative charge detection system based on ICD ion capture according to claim 2 is characterized in that: The SF6 gas sampling preparation unit further includes: Gas sampling modules for: The sampling pump is designed at the back end of the built-in sampling probe of the equipment. The gas sample collected by the sampling pump enters the ion detection equipment through the air inlet. The equipment will automatically perform initialization verification after the power is turned on. After the verification is completed, the sampling operation is confirmed on the display screen; Place the sampling probe in the gas monitoring area. After placement, the gas in the gas monitoring area is sucked into the sampling probe through the sampling pump. After the gas is inhaled into the sampling probe, the display shows that the sampling is completed, and then the sampled gas is tested.

7. The SF6 gas quantitative charge detection system based on ICD ion capture according to claim 6 is characterized in that: The SF6 gas detection unit is also used for: The sampled gas is tested by using ICD ion capture technology; Among them, the sampling gas detection process is: S1: The high voltage pulse generator in the electric ion detection equipment generates high voltage pulses, which serve as ion sources and simultaneously generate high energy electrons; S2: When the air in the ion detection device passes through the high-voltage pulse, the high-energy electrons ionize the air molecules, generating positive ions and free electrons; S3: When the sampled gas enters the ionization zone in the ion detection device through the vacuum pump, the free electrons interact with the sampled gas molecules and attach to the gas molecules to form negative ions; S4: Positive ions and negative ions migrate in opposite directions in the electric field, and current is obtained after migration. At the same time, negative ions recombine with positive ions after air ionization to form neutral molecules, which changes the current size. The SF6 gas concentration is detected according to the current size; Finally, the obtained current is marked as the target detection gas.

8. The SF6 gas quantitative charge detection system based on ICD ion capture according to claim 7 is characterized in that: The SF6 gas analysis unit comprises: Electrical signal conversion module, used for: Calculate the conductivity of the target detection gas; Among them, the conductivity detection sensor is used to confirm the current value in the target detection gas; The voltage signal in the target detection gas is calculated by Ohm's law; The voltage signal is amplified by an amplifier and then denoised by a filter; After denoising, the concentration data of the target detection gas is obtained.

9. The SF6 gas quantitative charge detection system based on ICD ion capture according to claim 8, characterized in that: The SF6 gas analysis unit further comprises: Concentration data anomaly screening module, used for: Retrieve standard concentration data of the gas monitoring area from the database; Perform curve data conversion between standard concentration data and concentration data in target detection gas; After the curve data is converted, the curve overlap comparison is performed; The maximum and average values ​​of SF6 gas ions in the gas monitoring area are obtained based on the curve overlap comparison results; When the curves overlap and compare, the average value of each overlapping curve interaction point is taken as the average value of the ion of SF6 gas, and the value that is not within the preset range of the standard concentration data curve data is taken as the highest value of the ion of SF6 gas, and the highest value is abnormal data; The highest value and the average value are stored independently, and unique numbers are generated when they are stored independently; The maximum and average values ​​are marked as SF6 gas analysis data.

10. The SF6 gas quantitative charge detection system based on ICD ion capture according to claim 9, characterized in that: The SF6 gas alarm transmission unit comprises: Warning level differentiation module, used for: Calculate the leakage velocity and annual leakage rate of SF6 gas analysis data; The calculation results of leakage velocity and annual leakage rate are used as early warning data; Compare the warning data with the safety data; Determine the warning level of the warning data based on the comparison results; The warning levels are divided into level one, level two and level three; Report generation transport module for: Generate text and images of warning data in the warning level, wherein the images include bar graphs, curve graphs and pie charts; The generated text and image signals are transmitted to the handheld monitoring terminal and the ion detection device for display. At the same time, different types of alarms are issued on the handheld monitoring terminal and the ion detection device according to different warning levels.

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