Automatic control system and method for exhaust gas treatment

Abstract

The application relates to the technical field of tail gas exhaust control, and particularly discloses a tail gas exhaust treatment automatic control system and method, which is provided with a data transmission detection module, a tail gas detection module and a tail gas exhaust detection module, can ensure the stability and reliability of data transmission by evaluating the data transmission process of tail gas detection data, can obtain a tail gas pollution index by analyzing tail gas property data, can reflect the pollution degree of tail gas emission, can improve the efficiency and effect of tail gas treatment, can ensure that tail gas emission meets environmental protection requirements, can analyze exhaust performance data in the tail gas exhaust treatment process, can comprehensively and accurately understand the operation state and performance of tail gas exhaust treatment, can obtain exhaust performance indexes, is an important basis for evaluating the performance of a tail gas exhaust treatment system, can help reduce the probability and influence degree of faults, and can guarantee the stable operation of tail gas exhaust treatment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tail gas exhaust control, in particular to a tail gas exhaust treatment automatic control system and method. BACKGROUND

[0002] At present, with the rapid development of industry, the problem of waste gas emission generated in the manufacturing process is increasingly prominent. In the semiconductor manufacturing process, processes such as thin film deposition, etching, ion implantation will produce a large amount of waste gas containing harmful substances, such as volatile organic compounds, acid gas, alkaline gas and toxic gas. These waste gases not only pollute the atmospheric environment, but also affect the normal operation of precision manufacturing equipment. The traditional waste gas treatment method often has problems such as low treatment efficiency, high energy consumption, and insufficient automation, which is difficult to meet the strict requirements of modern semiconductor manufacturing on waste gas treatment. Therefore, it is of great practical significance to develop a semiconductor manufacturing waste gas automatic control system that can realize precise control and efficient treatment.

[0003] For example, the invention patent with publication number CN115350577B discloses a waste gas treatment reaction device and a semiconductor waste gas treatment system. The waste gas treatment reaction device includes a shell and a cooler. The inside of the shell is provided with a through reaction cavity. The cooler is provided with multiple flow channels for cooling liquid flow and overflow ports communicating with each flow channel. The multiple flow channels are arranged around the outside of the shell in sequence. The overflow ports communicate with the reaction cavity.

[0004] For example, the invention patent with publication number CN112827341A discloses a semiconductor process waste gas treatment system and a method for treating waste gas thereof. It includes a first sensor, a first three-way valve, a combustion chamber, a water washing branch, and a water washing chamber. The first outlet of the first three-way valve communicates with the water washing chamber through the combustion chamber. The second outlet of the first three-way valve communicates with the water washing chamber through the water washing branch.

[0005] However, in the existing tail gas treatment method, the tail gas is directly treated. On the one hand, the accuracy of the tail gas data itself cannot be determined, and on the other hand, whether the tail gas data is normal in the transmission process cannot be determined. Therefore, there is a possibility that the tail gas treatment accuracy is not accurate, which directly leads to the fact that the abnormality in the tail gas treatment process cannot be discovered and treated in time, thereby affecting the quality of the tail gas exhaust. SUMMARY

[0006] In view of the deficiencies of the prior art, the present application provides a tail gas exhaust treatment automatic control system and method, which can effectively solve the problems involved in the background art.

[0007] To achieve the above object, the present application is realized by the following technical solutions: the first aspect of the present application provides a tail gas exhaust treatment automatic control system, comprising: a data transmission detection module, configured to detect tail gas data obtained in an exhaust operation stage to obtain tail gas detection data, transmit the tail gas detection data to an automatic control platform, obtain data transmission parameters based on the process of tail gas detection data transmission, analyze to obtain data transmission quality indicators, compare the data transmission quality indicators with the data transmission quality indicator limit value preset in the control database to obtain a data transmission comparison result, and determine whether the process of tail gas detection data transmission needs to be warned according to the data transmission comparison result.

[0008] A tail gas detection module is configured to preprocess the obtained tail gas detection data by the automatic control platform, record the preprocessed tail gas detection data as tail gas property data, and analyze to obtain a tail gas pollution index, compare the tail gas pollution index with the tail gas pollution index threshold value preset in the control database to obtain a tail gas pollution comparison result, and determine whether the pre-set tail gas exhaust treatment mode needs to be controlled according to the tail gas pollution comparison result.

[0009] A tail gas exhaust detection module is configured to detect and obtain exhaust performance data in the tail gas exhaust treatment process, analyze to obtain exhaust performance indicators, compare the exhaust performance indicators with the exhaust performance indicator limit value preset in the control database to obtain an exhaust performance comparison result, and finally determine whether the tail gas exhaust treatment needs to be warned according to the exhaust performance comparison result.

[0010] As a further solution, the data transmission quality indicators are specifically analyzed as follows:

[0011] The data transmission parameters specifically include real-time data transmission rate, real-time transmission delay time, real-time transmission signal strength, real-time transmission noise intensity, real-time transmission bandwidth utilization rate, data packet sending quantity and data packet receiving quantity of the tail gas detection data in the data transmission period.

[0012] The real-time transmission delay time and the real-time transmission signal strength of the tail gas detection data in the data transmission period are processed by ratio to obtain the real-time transmission signal-to-noise ratio of the tail gas detection data in the data transmission period.

[0013] The data packet sending quantity of the tail gas detection data in the data transmission period is subtracted by the data packet receiving quantity to obtain the data packet loss quantity, and the data packet loss quantity is processed by ratio with the data packet sending quantity to obtain the data packet loss rate of the tail gas detection data in the data transmission period.

[0014] The real-time data transmission rate, real-time transmission delay time, real-time transmission signal-to-noise ratio, real-time transmission bandwidth utilization rate and data packet loss rate of the tail gas detection data in the data transmission period are comprehensively analyzed to obtain the data transmission quality indicators.

[0015] As a further solution, the process of determining whether to issue a warning for the exhaust gas detection data transmission process based on the data transmission comparison results is as follows:

[0016] If the data transmission quality index is greater than or equal to the preset data transmission quality index threshold of the control database, the data transmission comparison result is recorded as the first comparison result.

[0017] If the data transmission quality index is less than the preset data transmission quality index threshold of the control database, the data transmission comparison result will be recorded as the second comparison result.

[0018] If the data transmission comparison result is the second comparison result, then a warning will be issued directly during the exhaust gas detection data transmission process.

[0019] As a further solution, the specific analysis process for the exhaust pollution index is as follows:

[0020] The real-time nitrogen oxide concentration, real-time sulfur dioxide concentration, and real-time particulate matter concentration of the exhaust gas during the detection cycle are compared with the preset reference concentrations of nitrogen oxide, sulfur dioxide, and particulate matter in the control database to obtain the real-time nitrogen oxide concentration ratio, real-time sulfur dioxide concentration ratio, and real-time particulate matter concentration ratio of the exhaust gas during the detection cycle.

[0021] The exhaust gas pollution index is obtained by comprehensively analyzing data transmission quality indicators, real-time temperature, real-time moisture content, real-time nitrogen oxide concentration ratio, real-time sulfur dioxide concentration ratio, and real-time particulate matter concentration ratio during the detection cycle. The specific analysis method is as follows:

[0022] ;

[0023] In the formula, The exhaust pollution index, It is a natural constant. This is the starting point of the detection cycle. The end time of the testing cycle, For any point in time within the detection period, , For exhaust emissions within the testing cycle Real-time temperature at a given time point. To control the reference temperature preset in the database, For exhaust emissions within the testing cycle Real-time moisture content at a given time point. To control the preset reference moisture content in the database, For exhaust emissions within the testing cycle Real-time nitrogen oxide concentration ratio at a given time point a pollution influence factor corresponding to a preset concentration ratio unit value of nitrogen oxides in the control database, a real-time sulfur dioxide concentration ratio of the exhaust gas at the detection time point within the detection period, a pollution influence factor corresponding to a preset concentration ratio unit value of sulfur dioxide in the control database, a real-time particulate matter concentration ratio of the exhaust gas at the detection time point within the detection period, a pollution influence factor corresponding to a preset concentration ratio unit value of particulate matter in the control database, a data transmission quality index, a pollution influence factor corresponding to a preset unit value of the data transmission quality index in the control database.

[0024] As a further solution, the judgment of whether the pre-set exhaust gas emission treatment method needs to be controlled according to the comparison result of the exhaust gas pollution is specifically as follows:

[0025] If the exhaust gas pollution index is greater than the exhaust gas pollution index threshold value preset in the control database, the comparison result of the exhaust gas pollution is recorded as the first comparison result of the exhaust gas pollution, and the exhaust gas is treated by the pre-set exhaust gas emission treatment method.

[0026] If the exhaust gas pollution index is less than or equal to the exhaust gas pollution index threshold value preset in the control database, the comparison result of the exhaust gas pollution is recorded as the second comparison result of the exhaust gas pollution, and the exhaust gas is treated by the pre-set exhaust gas emission treatment method.

[0027] If the comparison result of the exhaust gas pollution is the first comparison result of the exhaust gas pollution, the pre-set exhaust gas emission treatment method needs to be controlled.

[0028] The control of the pre-set exhaust gas emission treatment method is specifically to increase the treatment capacity of the exhaust gas treatment device and to increase the exhaust gas purification link.

[0029] Based on the result of the control of the pre-set exhaust gas emission treatment method, the control exhaust gas property data is obtained and analyzed to obtain an exhaust gas pollution control index. If the exhaust gas pollution control index is still greater than the exhaust gas pollution index threshold value preset in the control database, a warning prompt is directly given to the exhaust gas emission treatment method.

[0030] As a further solution, the exhaust gas performance index is specifically analyzed as follows:

[0031] The real-time exhaust gas flow of the exhaust gas within the exhaust period is differentially processed with the exhaust reference flow preset in the control database to obtain a real-time exhaust gas flow deviation value of the exhaust gas within the exhaust period. ​​

[0032] The average exhaust pressure of the tail gas in the exhaust period is subtracted from the exhaust reference pressure preset in the control database to obtain an exhaust pressure deviation value of the tail gas in the exhaust period.

[0033] The exhaust data transmission quality index, the real-time exhaust flow deviation value of the tail gas in the exhaust period, the exhaust pressure deviation value, the average nitrogen oxide concentration, the average sulfur dioxide concentration and the average particulate matter concentration are comprehensively analyzed to obtain an exhaust performance index.

[0034] As a further scheme, the final exhaust performance comparison result is used to determine whether a warning prompt for the tail gas exhaust treatment is needed, and the specific determination process is as follows:

[0035] If the exhaust performance index is greater than or equal to the exhaust performance index threshold value preset in the control database, the exhaust performance comparison result is recorded as an exhaust performance first comparison result.

[0036] If the exhaust performance index is less than the exhaust performance index threshold value preset in the control database, the exhaust performance comparison result is recorded as an exhaust performance second comparison result.

[0037] If the exhaust performance comparison result is the exhaust performance second comparison result, a warning prompt for the tail gas exhaust treatment is needed.

[0038] The second aspect of the present application provides a method for automatic control of tail gas exhaust treatment, comprising: S1. Data transmission detection: detecting tail gas data obtained in the exhaust operation stage to obtain tail gas detection data, transmitting the tail gas detection data to an automatic control platform, obtaining data transmission parameters based on the process of tail gas detection data transmission, analyzing to obtain a data transmission quality index, comparing the data transmission quality index with a data transmission quality index threshold value preset in a control database to obtain a data transmission comparison result, and determining whether a warning prompt for the process of tail gas detection data transmission is needed according to the data transmission comparison result.

[0039] S2. Tail gas detection: the automatic control platform pre-processes the obtained tail gas detection data, records the pre-processed tail gas detection data as tail gas property data, and analyzes to obtain a tail gas pollution index, compares the tail gas pollution index with a tail gas pollution index threshold value preset in the control database to obtain a tail gas pollution comparison result, and determines whether the pre-set tail gas exhaust treatment mode needs to be controlled according to the tail gas pollution comparison result.

[0040] S3. Exhaust detection: detecting and obtaining exhaust performance data in the exhaust treatment process, analyzing to obtain an exhaust performance index, comparing the exhaust performance index with an exhaust performance index threshold value preset in the control database to obtain an exhaust performance comparison result, and finally determining whether a warning prompt for the exhaust treatment is needed according to the exhaust performance comparison result.

[0041] Compared with the prior art, the embodiments of the present application have at least the following advantages or benefits:

[0042] (1) The present application obtains data transmission parameters through the process of tail gas detection data transmission, ensures the timeliness and accuracy of the data, and evaluates the transmission quality of the tail gas detection data transmission process, ensuring the stability and reliability of data transmission, which helps to timely discover and solve problems in the data transmission process, improve the quality of data transmission, and compare with the data transmission quality index limit value preset in the control database, so that abnormal conditions in the data transmission process can be discovered in time, and a warning prompt can be issued to discover and solve the faults in the tail gas detection data transmission process in time, reduce the downtime, and improve the continuity and stability of the tail gas detection work.

[0043] (2) The present application can remove noise, outliers and missing values in tail gas detection data through preprocessing of tail gas detection data, improve the accuracy and reliability of data, and help to ensure the accuracy of subsequent analysis results, avoid misleading decisions, analyze the tail gas property data to obtain the tail gas pollution index, which can comprehensively reflect the pollution degree of tail gas emission, including the content and concentration of various harmful substances, and compare with the tail gas pollution index threshold preset in the control database, so as to judge whether the current tail gas treatment method is effective, and adjust and optimize according to the actual situation, which helps to improve the efficiency and effect of tail gas treatment, and ensure that the tail gas emission meets the environmental protection requirements.

[0044] (3) The present application can comprehensively and accurately understand the running state and performance of the tail gas exhaust treatment by analyzing the exhaust performance data in the exhaust treatment process, obtain the exhaust performance index, which is an important basis for evaluating the performance of the tail gas exhaust treatment system, and through quantitative analysis, the performance of the system in various aspects can be directly understood, and compared with the exhaust performance index limit value preset in the control database, whether the exhaust performance index deviates from the normal range can be discovered in time, which helps to discover the problems of the tail gas exhaust treatment system in time, avoid the expansion of faults or cause more serious consequences, and when the exhaust performance index is lower than the preset limit value, the warning mechanism is triggered to remind the relevant personnel to take measures to intervene in time, which helps to reduce the probability and influence degree of faults, and ensure the stable operation of the tail gas exhaust treatment. BRIEF DESCRIPTION OF DRAWINGS

[0045] The present application is further illustrated by the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the following drawings.

[0046] Figure 1 It is a schematic diagram of the system module of the present application.

[0047] Figure 2 The method steps of the present application are shown in the schematic diagram. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0049] Referring to Figure 1 The first aspect of the present application provides an exhaust gas exhaust treatment automatic control system, comprising: a data transmission detection module, an exhaust gas detection module, an exhaust gas exhaust detection module and a control database.

[0050] The data transmission detection module is connected with the exhaust gas detection module, the exhaust gas detection module is connected with the exhaust gas exhaust detection module, and the data transmission detection module, the exhaust gas detection module and the exhaust gas exhaust detection module are all connected with the control database.

[0051] The data transmission detection module is used for detecting the exhaust gas data obtained in the exhaust operation stage to obtain exhaust gas detection data, transmitting the exhaust gas detection data to an automatic control platform, obtaining data transmission parameters based on the process of exhaust gas detection data transmission, analyzing to obtain data transmission quality indicators, comparing the data transmission quality indicators with the data transmission quality indicator limit value preset in the control database to obtain a data transmission comparison result, and judging whether the process of exhaust gas detection data transmission needs to be warned according to the data transmission comparison result.

[0052] It needs to be explained that the automatic control platform refers to a comprehensive management platform integrating automatic control technology, information technology, data processing and analysis capabilities. In this platform, there are usually key components such as data acquisition module, data processing module, control logic execution module and user interface. In this embodiment, the automatic control platform can receive data from various exhaust gas detection points, process the received data, extract useful information, and based on the analyzed data, the automatic control platform can make corresponding control decisions. The process of exhaust gas detection data transmission refers to the entire process from the collection of exhaust gas data by the exhaust gas detection equipment to the reception and processing of these data by the automatic control platform. The data acquisition is through the exhaust gas detection equipment (such as gas sensor) to detect the exhaust emission, and the collected data is converted into electrical signal or digital signal. The collected data needs to be encoded and packaged, and the packaged data is transmitted to the automatic control platform through wired (such as Ethernet, RS485, etc.) or wireless (such as Wi-Fi, 4G / 5G, etc.) communication mode.

[0053] The tail gas detection module is configured to automatically control the platform to pre-process the obtained tail gas detection data, record the pre-processed tail gas detection data as tail gas property data, and analyze the tail gas property data to obtain a tail gas pollution index. The tail gas pollution index is compared with a tail gas pollution index threshold value preset in a control database to obtain a tail gas pollution comparison result. Whether the pre-set tail gas exhaust treatment mode needs to be controlled is determined according to the tail gas pollution comparison result.

[0054] It should be explained that the pre-set tail gas exhaust treatment mode is to use a catalyst to convert harmful gases (such as carbon monoxide, hydrocarbons, nitrogen oxides, etc.) in the tail gas into harmless or low-harm substances, and to use an exhaust gas recirculation (EGR) technology to re-introduce a part of the tail gas into an engine intake duct to mix with fresh air and then burn again to reduce the combustion temperature and thus reduce the generation of nitrogen oxides.

[0055] The tail gas exhaust detection module is configured to detect and obtain exhaust performance data in a tail gas exhaust treatment process, analyze the exhaust performance data to obtain an exhaust performance index, compare the exhaust performance index with a preset exhaust performance index threshold value in a control database to obtain an exhaust performance comparison result, and finally determine whether a warning prompt needs to be issued for the tail gas exhaust treatment according to the exhaust performance comparison result.

[0056] In the embodiment, the tail gas exhaust treatment process includes the pre-set tail gas exhaust treatment mode and the control process of the pre-set tail gas exhaust treatment mode. In actual application scenarios, the tail gas generated in industrial chemical processes often contains complex chemical components and high pollutant concentrations. The data transmission detection module of the present application can monitor tail gas detection data in real time and transmit the data to the automatic control platform to ensure the timeliness and accuracy of the data. At the same time, through data preprocessing and analysis, a tail gas pollution index can be obtained to provide data support for accurate control of tail gas emission. Whether it is a quality problem in the data transmission process, the pollution degree of the tail gas emission, or the performance abnormality in the tail gas exhaust treatment process, the present application can compare and judge through the corresponding modules and issue a warning prompt when necessary, which helps to discover and handle potential problems in time and prevent environmental pollution accidents. The present application can control the pre-set tail gas exhaust treatment mode according to the comparison result of the tail gas pollution index, which means that the system can adjust the treatment parameters according to the actual situation, optimize the tail gas treatment process, and improve the treatment efficiency and effect. Through the application of the present application, the industrial chemical process can achieve accurate control of tail gas emission, reduce the emission of pollutants, and improve the environmental protection level of tail gas emission in the entire industrial production process.

[0057] The control database is configured to store preset data transmission quality index limit value, preset exhaust pollution index threshold value, preset exhaust performance index limit value, preset transmission allowed delay time length, preset transmission quality influence index corresponding to data transmission rate unit value, preset transmission quality influence index corresponding to transmission signal-to-noise ratio unit value, preset transmission bandwidth reference utilization rate, preset transmission quality influence index corresponding to data packet loss rate unit value, preset nitrogen oxide reference concentration, preset sulfur dioxide reference concentration, preset particulate matter reference concentration, preset reference temperature, preset reference moisture content, preset exhaust reference flow rate, preset exhaust reference pressure, pollution influence factor corresponding to nitrogen oxide concentration ratio unit value, pollution influence factor corresponding to sulfur dioxide concentration ratio unit value, pollution influence factor corresponding to particulate matter concentration ratio unit value, pollution influence factor corresponding to data transmission quality index unit value, exhaust performance influence index corresponding to exhaust data transmission quality index unit value, preset exhaust reference flow rate, preset exhaust reference pressure, preset exhaust flow rate allowed deviation value, preset exhaust pressure allowed deviation value, preset nitrogen oxide allowed concentration, preset sulfur dioxide allowed concentration and preset particulate matter allowed concentration.

[0058] Specifically, the data transmission quality index is specifically analyzed as follows:

[0059] The data transmission parameter specifically includes real-time data transmission rate, real-time transmission delay time length, real-time transmission signal strength, real-time transmission noise strength, real-time transmission bandwidth utilization rate, data packet sending quantity and data packet receiving quantity of the exhaust detection data in the data transmission cycle.

[0060] It needs to be explained that the above-mentioned tail gas detection data includes but is not limited to real-time temperature, real-time moisture content, real-time nitrogen oxide concentration, real-time sulfur dioxide concentration and real-time particulate matter concentration of tail gas in the detection period; the real-time transmission delay time length is the time stamp of data sending and receiving recorded by the data source end and the receiving end respectively, the difference between the two time stamps is compared to obtain the transmission delay time length of the data; the real-time transmission signal strength can be obtained by using a special signal strength monitoring device or instrument to monitor and record the strength value of the signal in real time; the real-time transmission noise intensity is obtained by using a special noise monitoring device, decomposing the transmission signal into different frequency components through spectrum analysis technology, and measuring the noise intensity of each frequency component; the real-time transmission bandwidth utilization rate is measured by using a network performance test tool to measure the actual used bandwidth and the total available bandwidth, and the bandwidth utilization rate is obtained by dividing the actual used bandwidth by the total available bandwidth; the number of data packet sending and the number of data packet receiving respectively refer to the number of data packets successfully sent and received by the sending end and the receiving end in the data transmission period, which can be monitored and recorded by using network monitoring software to monitor and record the sending and receiving of data packets, and the number of sent and received data packets is recorded by statistical counting; the data transmission period refers to the entire period from the beginning of tail gas detection data collection at the source (such as a sensor) to the complete and accurate transmission of data to the receiving end (such as an automatic control platform).

[0061] In the present embodiment, there is a mutual influence relationship among the real-time data transmission rate, real-time transmission delay time length, real-time transmission signal strength, real-time transmission noise intensity, real-time transmission bandwidth utilization rate, number of data packet sending and number of data packet receiving of the above-mentioned tail gas detection data in the data transmission period, which together determine the quality and efficiency of data transmission. When the data transmission rate increases, the utilization rate of transmission bandwidth will also increase accordingly, because more data is being transmitted. However, if the bandwidth utilization rate is too high, it may cause network congestion, which in turn reduces the data transmission rate, because data needs to be queued for transmission. Real-time data transmission rate directly affects the frequency of data packet sending and receiving. The higher the rate, the more data packets are sent and received per unit time. The number of data packet sending and receiving also affects the delay. If there are too many data packets, it may cause network congestion, thereby increasing the delay. High bandwidth utilization rate means that the network is efficiently utilizing resources, but it may also cause network congestion and increase the delay. If the bandwidth utilization rate is too high, data packets will be delayed in sending or receiving due to network congestion. Real-time transmission signal strength indicates the strength of the signal during transmission. The stronger the transmission signal strength, the higher the reliability and stability of data transmission. Real-time transmission noise intensity, the lower the signal quality, the lower the data transmission rate or the data loss.

[0062] The real-time transmission delay time length of the tail gas detection data in the data transmission cycle is ratio-processed with the real-time transmission signal strength to obtain a real-time transmission signal-to-noise ratio of the tail gas detection data in the data transmission cycle.

[0063] The data packet loss amount of the tail gas detection data in the data transmission cycle is obtained by subtracting the data packet receiving amount from the data packet sending amount, and is ratio-processed with the data packet sending amount to obtain a data packet loss rate of the tail gas detection data in the data transmission cycle.

[0064] The real-time data transmission rate, the real-time transmission delay time length, the real-time transmission signal-to-noise ratio, the real-time transmission bandwidth utilization rate and the data packet loss rate of the tail gas detection data in the data transmission cycle are comprehensively analyzed to obtain a data transmission quality index, and the specific analysis method is:

[0065]

[0066] In the formula, is the data transmission quality index, is a starting time point of the data transmission cycle, is an ending time point of the data transmission cycle, is an arbitrary time point of the data transmission cycle, , is a natural constant, is a real-time transmission delay time length of the tail gas detection data at the t time point in the data transmission cycle, is a transmission allowed delay time length preset by the control database, is a real-time data transmission rate of the tail gas detection data at the t time point in the data transmission cycle, is a transmission quality influence index corresponding to a data transmission rate unit value preset by the control database, is a real-time transmission signal-to-noise ratio of the tail gas detection data at the t time point in the data transmission cycle, is a transmission quality influence index corresponding to a transmission signal-to-noise ratio unit value preset by the control database, is a real-time transmission bandwidth utilization rate of the tail gas detection data at the t time point in the data transmission cycle, is a transmission bandwidth reference utilization rate preset by the control database, is a data packet loss rate of the tail gas detection data in the data transmission cycle, is a transmission quality influence index corresponding to a data packet loss rate unit value preset by the control database.

[0067] ​It needs to be explained that any time point of the above data transmission cycle refers to any specific moment or time point in the entire process of collecting exhaust detection data from the source to receiving the receiving end. This time point can be the starting moment of data collection, a certain intermediate moment of data transmission, or the ending moment of data reception, etc. The real-time transmission delay length refers to the time required for exhaust detection data to be sent from the source to the receiving end. The transmission delay length allowed by the control database preset refers to the maximum allowed delay time set by the system for data transmission. The real-time data transmission rate refers to the number of bits transmitted per second of exhaust detection data from the source to the receiving end within the data transmission cycle. The real-time transmission signal-to-noise ratio refers to the ratio between the real-time transmission delay length and the real-time transmission signal strength of the exhaust detection data within the data transmission cycle. The real-time transmission bandwidth utilization rate refers to the ratio between the actual bandwidth used and the total available bandwidth during data transmission. The transmission bandwidth reference utilization rate preset by the control database refers to a bandwidth utilization threshold set by the system for data transmission. The data packet loss rate refers to the proportion of data packets that fail to be successfully transmitted to the receiving end due to various reasons (such as network congestion, equipment failure, etc.) during data transmission. The transmission quality influence index corresponding to the data packet loss rate unit value preset by the control database indicates the influence degree of the data packet loss rate unit value on the data transmission quality index. The control database stores the corresponding relationship between the data packet loss rate unit value and its corresponding transmission quality influence index. For example, by inputting the data packet loss rate unit value into the control database, the control database can match the transmission quality influence index corresponding to the data packet loss rate unit value. The transmission quality influence index corresponding to the data transmission rate unit value preset by the control database indicates the influence degree of the data transmission rate unit value on the data transmission quality index. The control database stores the corresponding relationship between the data transmission rate unit value and its corresponding transmission quality influence index. For example, by inputting the data transmission rate unit value into the control database, the control database can match the transmission quality influence index corresponding to the data transmission rate unit value. The transmission quality influence index corresponding to the transmission signal-to-noise ratio unit value preset by the control database indicates the influence degree of the transmission signal-to-noise ratio unit value on the data transmission quality index. The control database stores the corresponding relationship between the transmission signal-to-noise ratio unit value and its corresponding transmission quality influence index. For example, by inputting the transmission signal-to-noise ratio unit value into the control database, the control database can match the transmission quality influence index corresponding to the transmission signal-to-noise ratio unit value.

[0068] In the embodiment, when the real-time transmission delay duration is large, even greater than the preset transmission allowed delay duration, the real-time performance of data transmission is reduced, the timeliness of the exhaust detection data is weakened, the accuracy of the detection result is affected, and the real situation of exhaust emission cannot be reflected in time; the low real-time data transmission rate leads to low data transmission efficiency, slow data update, and direct decline of data transmission quality index; the low real-time transmission signal-to-noise ratio means that the noise component in the signal is high, which reduces the clarity of data transmission, increases the error rate of data transmission, and further reduces the data transmission quality index; the large or small real-time transmission bandwidth utilization rate, that is, the large deviation from the preset transmission bandwidth reference utilization rate, indicates that the network resource utilization is not efficient or too crowded, which increases the instability of data transmission, further causes the loss or delay of exhaust detection data, and reduces the data transmission quality index; the high data packet loss rate means that a large number of data packets fail to be successfully transmitted in the data transmission process, which leads to inaccurate detection results and increases the network burden and transmission time; therefore, through detailed analysis of the data transmission quality index, problems in the data transmission process can be found and solved in time, which helps to ensure the accuracy and real-time performance of the exhaust detection data, and thus provides reliable evaluation of the exhaust emission status.

[0069] Specifically, the method comprises the following steps of:

[0070] If the data transmission quality index is greater than or equal to the data transmission quality index limit value preset by the control database, the data transmission comparison result is recorded as a transmission first comparison result.

[0071] If the data transmission quality index is less than the data transmission quality index limit value preset by the control database, the data transmission comparison result is recorded as a transmission second comparison result.

[0072] If the data transmission comparison result is the transmission second comparison result, a pre-warning prompt is directly given to the process of exhaust detection data transmission.

[0073] It needs to be explained that when the data transmission quality index is greater than or equal to the control database preset data transmission quality index limit value, it means that the quality of data transmission meets the requirements, and there is no obvious quality problem, therefore, this comparison result is recorded as the first comparison result of transmission, and no additional warning prompt is needed; when the data transmission quality index is less than the control database preset data transmission quality index limit value, it means that the quality of data transmission is lower than the requirement, and there may be problems such as data loss, delay, error, etc., therefore, this comparison result is recorded as the second comparison result of transmission, at this time, the warning prompt mechanism needs to be triggered, and the specific warning prompt can be realized by popping up a specific text prompt box in the automatic control platform, such as "please note that the quality index of the current exhaust detection data transmission has been lower than the system preset limit value, part of the data may not be successfully transmitted to the receiving end, resulting in incomplete data", the operator can take relevant measures to ensure the accuracy of data transmission according to the warning prompt, for example, confirming whether the network connection is stable, whether there is interruption or congestion phenomenon, adjusting the data transmission rate, packet size, etc. according to the current network environment, and transmitting the exhaust detection data again.

[0074] Further, the exhaust property data, the specific acquisition process is:

[0075] The automatic control platform pre-processes the obtained exhaust detection data, and the specific pre-processing includes data cleaning, data calibration and data normalization processing, and the exhaust detection data after pre-processing is recorded as exhaust property data.

[0076] It needs to be explained that after obtaining the original exhaust detection data, data cleaning is needed first, which mainly includes removing outliers, filling missing values and filtering noise, etc. This process can effectively improve the accuracy and integrity of the data, and ensure the reliability of the subsequent analysis results; data calibration is to adjust the data collected by the exhaust detection equipment to eliminate systematic errors and random errors, through calibration, it can ensure that the data collected by different devices is comparable, thereby improving the accuracy of data analysis; data normalization is to convert data of different dimensions or value ranges to a unified scale, common normalization methods include maximum and minimum normalization, Z-score standardization, etc.

[0077] The exhaust property data specifically includes real-time temperature, real-time moisture content, real-time nitrogen oxide concentration, real-time sulfur dioxide concentration and real-time particulate matter concentration of the exhaust in the detection period.

[0078] It needs to be explained that the above real-time temperature is usually measured by an industrial temperature recorder (such as TP700, etc.) to measure the temperature data of the tail gas, the water content can be measured by a relative humidity sensor, the real-time nitrogen oxide concentration can be monitored by a special nitrogen oxide monitoring device, the real-time sulfur dioxide concentration can be measured by a sulfur dioxide sensor, and the real-time particulate matter concentration can be monitored by a special particulate matter monitoring device. In this embodiment, the detection period refers to the time interval for detecting the tail gas, which is usually determined according to the actual tail gas emission requirements.

[0079] In this embodiment, there are some mutual influence relationships among the real-time temperature, real-time water content, real-time nitrogen oxide concentration, real-time sulfur dioxide concentration and real-time particulate matter concentration of the tail gas in the detection period. Nitrogen oxide is a product of high-temperature combustion, so the higher the real-time temperature of the tail gas, the greater the nitrogen oxide concentration may be. The real-time temperature may also affect the generation of particulate matter. On the one hand, the fuel may burn more fully at high temperature, reducing the generation of particulate matter. On the other hand, if the combustion conditions are poor, high temperature may also lead to an increase in particulate matter such as unburned carbon particles. The evaporation of water will absorb heat, thereby reducing the temperature of the tail gas. The sulfur dioxide concentration will further convert to sulfate particulate matter in the atmosphere, thereby affecting the concentration of particulate matter.

[0080] Specifically, the tail gas pollution index is analyzed as follows:

[0081] The real-time nitrogen oxide concentration, real-time sulfur dioxide concentration and real-time particulate matter concentration of the tail gas in the detection period are respectively compared with the nitrogen oxide reference concentration, sulfur dioxide reference concentration and particulate matter reference concentration preset in the control database to obtain the real-time nitrogen oxide concentration ratio, real-time sulfur dioxide concentration ratio and real-time particulate matter concentration ratio of the tail gas in the detection period.

[0082] The data transmission quality index, real-time temperature, real-time water content, real-time nitrogen oxide concentration ratio, real-time sulfur dioxide concentration ratio and real-time particulate matter concentration ratio of the tail gas in the detection period are comprehensively analyzed to obtain the tail gas pollution index. The specific analysis method is as follows:

[0083] ;

[0084] In the formula, is the tail gas pollution index, is a natural constant, is the starting time point of the detection period, is the ending time point of the detection period, is any time point in the detection period, , a real-time temperature of the exhaust gas at a time point within the detection period, a reference temperature preset by the control database, a real-time temperature of the exhaust gas at a time point within the detection period, a reference temperature preset by the control database, a real-time moisture content of the exhaust gas at a time point within the detection period, a reference moisture content preset by the control database, a real-time nitrogen oxide concentration ratio of the exhaust gas at a time point within the detection period, a pollution impact factor corresponding to a unit value of the nitrogen oxide concentration ratio preset by the control database, a real-time sulfur dioxide concentration ratio of the exhaust gas at a time point within the detection period, a pollution impact factor corresponding to a unit value of the sulfur dioxide concentration ratio preset by the control database, a real-time particulate matter concentration ratio of the exhaust gas at a time point within the detection period, a pollution impact factor corresponding to a unit value of the particulate matter concentration ratio preset by the control database, a data transmission quality index, a pollution impact factor corresponding to a unit value of the data transmission quality index preset by the control database. a data transmission quality index, a pollution impact factor corresponding to a unit value of the data transmission quality index preset by the control database. a data transmission quality index,

[0085] It needs to be explained that any time point in the detection period refers to any time point in the detection period, which can be the beginning, middle or end, and any time point can be selected as the timing of recording data; the real-time temperature refers to the temperature of the exhaust gas at the current time point during the exhaust gas detection period; the reference temperature preset in the control database refers to a standard temperature value preset in advance; the real-time moisture content refers to the moisture content in the exhaust gas at the current time point; the reference moisture content preset in the control database refers to a standard moisture content value preset in advance; the real-time nitrogen oxide concentration ratio refers to the ratio between the real-time nitrogen oxide concentration of the exhaust gas during the detection period and the nitrogen oxide reference concentration preset in the control database; the real-time sulfur dioxide concentration ratio refers to the ratio between the real-time sulfur dioxide concentration and the sulfur dioxide reference concentration; the real-time particulate matter concentration ratio refers to the ratio between the real-time particulate matter concentration and the particulate matter reference concentration; the pollution influence factor corresponding to the unit value of the nitrogen oxide concentration ratio preset in the control database indicates the influence degree of the unit value of the nitrogen oxide concentration ratio on the exhaust pollution index, and the control database stores the corresponding relationship between the unit value of the nitrogen oxide concentration ratio and the corresponding pollution influence factor, for example, inputting the unit value of the nitrogen oxide concentration ratio into the control database, the control database can match the pollution influence factor corresponding to the unit value of the nitrogen oxide concentration ratio; the pollution influence factor corresponding to the unit value of the sulfur dioxide concentration ratio preset in the control database indicates the influence degree of the unit value of the sulfur dioxide concentration ratio on the exhaust pollution index, and the control database stores the corresponding relationship between the unit value of the sulfur dioxide concentration ratio and the corresponding pollution influence factor, for example, inputting the unit value of the sulfur dioxide concentration ratio into the control database, the control database can match the pollution influence factor corresponding to the unit value of the sulfur dioxide concentration ratio; the pollution influence factor corresponding to the unit value of the particulate matter concentration ratio preset in the control database indicates the influence degree of the unit value of the particulate matter concentration ratio on the exhaust pollution index, and the control database stores the corresponding relationship between the unit value of the particulate matter concentration ratio and the corresponding pollution influence factor, for example, inputting the unit value of the particulate matter concentration ratio into the control database, the control database can match the pollution influence factor corresponding to the unit value of the particulate matter concentration ratio.

[0086] In this embodiment, when the real-time temperature is high or low, that is, deviates greatly from the preset reference temperature, it means that the combustion process is unstable, resulting in an increase in the content of harmful substances in the exhaust gas, thereby increasing the exhaust gas pollution index; when the real-time moisture content is high or low, that is, deviates greatly from the preset reference moisture content, it will affect the chemical equilibrium and physical state of the exhaust gas, resulting in changes in the concentration of harmful substances in the exhaust gas, and then affecting the increase of the exhaust gas pollution index; a higher real-time nitrogen oxide concentration ratio indicates that too much nitrogen oxide is produced during combustion, leading to air pollution and increasing the exhaust gas pollution index; a higher real-time sulfur dioxide concentration ratio also indicates that the combustion is incomplete or the sulfur content in the fuel is too high, leading to acid rain formation and air pollution, and increasing the exhaust gas pollution index; a higher real-time particulate matter concentration ratio indicates that the exhaust gas contains a large amount of fine particulate matter, which will cause serious air pollution and also increase the exhaust gas pollution index; a lower data transmission quality index may result in inaccurate or delayed real-time data, and the negative effects include failure to accurately assess the exhaust gas pollution status in a timely manner, leading to invalidation of the emission control strategy and further increasing the exhaust gas pollution index; therefore, through detailed analysis of each parameter in the exhaust gas pollution index, exhaust emission problems can be found and diagnosed in a timely manner, which helps to optimize the combustion process, improve exhaust gas treatment efficiency, reduce harmful substance emissions, and at the same time, more accurate emission control strategies can be developed to ensure that exhaust emissions meet environmental protection standards.

[0087] Specifically, the method comprises the following steps of:

[0088] If the exhaust gas pollution index is greater than the exhaust gas pollution index threshold value preset in the control database, the exhaust gas pollution comparison result is recorded as an exhaust gas pollution first comparison result, and the exhaust gas is treated by the pre-set exhaust gas treatment method.

[0089] It should be explained that when the exhaust gas pollution index is greater than the exhaust gas pollution index threshold value preset in the control database, it means that the concentration of pollutants in the exhaust gas exceeds the exhaust gas pollution index threshold value standard, which usually indicates that the pre-set exhaust gas treatment method cannot meet the current exhaust emission requirements.

[0090] If the exhaust gas pollution index is less than or equal to the exhaust gas pollution index threshold value preset in the control database, the exhaust gas pollution comparison result is recorded as an exhaust gas pollution second comparison result, and the exhaust gas is treated by the pre-set exhaust gas treatment method.

[0091] It should be explained that when the exhaust gas pollution index is less than or equal to the exhaust gas pollution index threshold value preset in the control database, it means that the current exhaust gas can meet the preset environmental protection standard by the pre-set exhaust gas treatment method.

[0092] If the tail gas pollution comparison result is the first tail gas pollution comparison result, the pre-set tail gas exhaust treatment mode needs to be controlled.

[0093] The pre-set tail gas exhaust treatment mode is controlled, specifically by increasing the processing capacity of the tail gas treatment device and adding a tail gas purification link.

[0094] In this embodiment, when the tail gas pollution comparison result is the first tail gas pollution comparison result, that is, the tail gas pollution index exceeds the pre-set tail gas pollution index threshold of the control database, the control measures of increasing the processing capacity of the tail gas treatment device and adding a tail gas purification link are taken. By increasing the processing capacity of the tail gas treatment device, the pollutants in the tail gas can be more effectively removed, ensuring that the tail gas emission meets or is lower than the specified standard. At the same time, adding a tail gas purification link can further reduce the content of harmful substances in the tail gas and improve the purification effect.

[0095] Based on the result of controlling the pre-set tail gas exhaust treatment mode, control tail gas property data is obtained and analyzed to obtain a tail gas pollution control index. If the tail gas pollution control index is still greater than the pre-set tail gas pollution index threshold of the control database, a pre-warning prompt is directly given to the exhaust treatment mode of the tail gas.

[0096] It needs to be explained that the above-mentioned control result of the pre-set tail gas exhaust treatment mode, the control tail gas property data is obtained and analyzed to obtain a tail gas pollution control index. The control tail gas property data is the tail gas property data collected after the control measures are implemented, and the data content is the same as the above-mentioned tail gas property data. Therefore, the analysis method of the tail gas pollution index obtained by analyzing the tail gas property data can analyze the control tail gas property data to obtain the tail gas pollution control index. In this embodiment, the tail gas pollution control index obtained by controlling the pre-set tail gas exhaust treatment mode is compared with the pre-set tail gas pollution index threshold of the control database again. If the tail gas pollution control index is still greater than the pre-set tail gas pollution index threshold of the control database, it means that even if the control measures are taken, the pollution degree of the tail gas emission still exceeds the established environmental protection standard. This situation may indicate that the control measures are not effective enough, or there is a serious pollution problem in the tail gas emission source. Therefore, it is necessary to directly give a pre-warning prompt to the exhaust treatment mode of the tail gas. The specific pre-warning prompt can directly remind the operator to pay attention to the pollution situation of the tail gas emission by issuing an alarm sound.

[0097] Further, the exhaust performance data specifically includes real-time exhaust flow, average exhaust pressure, average nitrogen oxide concentration, average sulfur dioxide concentration, and average particulate matter concentration of the tail gas in the exhaust period.

[0098] It needs to be explained that the above-mentioned real-time exhaust flow can be directly measured by installing a flow sensor in the exhaust system, the average exhaust pressure can be measured multiple times by a pressure sensor within the exhaust period and the average value is calculated, the average nitrogen oxide concentration is obtained by using a chemical sensor to measure multiple times within the exhaust period and the measurement data is averaged, the measurement method of the average sulfur dioxide concentration is similar to that of nitrogen oxide, which is also obtained by using a chemical sensor to measure multiple times within the exhaust period and the measurement data is averaged, and the average particulate matter concentration is measured by a particulate matter sensor multiple times within the exhaust period, and the average particulate matter concentration is obtained by averaging the measured data. In this embodiment, the exhaust period refers to the time period for monitoring and evaluating exhaust emission, which is randomly set according to the specific exhaust emission.

[0099] The exhaust performance data is transmitted to the automatic control platform, and based on the exhaust performance data transmission process, the exhaust data transmission parameters are obtained, and the exhaust data transmission quality index is analyzed.

[0100] It needs to be explained that the above-mentioned exhaust performance data transmission process is the same as the above-mentioned exhaust detection data transmission process, and based on the exhaust performance data transmission process, the exhaust data transmission parameters are obtained, which are the same as the above-mentioned data transmission parameter data. The data transmission quality index obtained by analyzing the data transmission parameters corresponds to the analysis method, which can also be used to analyze the exhaust data transmission quality index.

[0101] Specifically, the exhaust performance index is analyzed as follows:

[0102] The real-time exhaust flow of the exhaust gas within the exhaust period is differentially processed with the exhaust reference flow preset in the control database to obtain the real-time exhaust flow deviation value of the exhaust gas within the exhaust period.

[0103] The average exhaust pressure of the exhaust gas within the exhaust period is differentially processed with the exhaust reference pressure preset in the control database to obtain the exhaust pressure deviation value of the exhaust gas within the exhaust period.

[0104] The exhaust data transmission quality index, the real-time exhaust flow deviation value of the exhaust gas within the exhaust period, the exhaust pressure deviation value, the average nitrogen oxide concentration, the average sulfur dioxide concentration and the average particulate matter concentration are comprehensively analyzed to obtain the exhaust performance index.

[0105] In this embodiment, the parameters such as the real-time exhaust flow deviation, exhaust pressure deviation, average nitrogen oxide concentration, average sulfur dioxide concentration, and average particulate matter concentration during the exhaust cycle are interrelated. Excessive exhaust flow may lead to a decrease in exhaust pressure; conversely, increased exhaust flow may increase the amount of pollutants emitted in the exhaust gas. Lower exhaust pressure promotes the diffusion and dilution of pollutants, thereby reducing emission concentrations. Conversely, excessively low exhaust pressure can hinder exhaust gas emission, thus increasing pollutant concentrations. Some chemical reactions in exhaust gas purification may simultaneously involve the conversion of pollutants such as nitrogen oxides, sulfur dioxide, and particulate matter. For example, certain catalysts can simultaneously reduce nitrogen oxides... In addition to particulate matter emission concentration, particulate matter in exhaust gas may adsorb or condense other pollutants, such as sulfur dioxide and nitrogen oxides, thereby altering their emission concentration. It should be noted that exhaust data transmission quality indicators are important parameters for measuring the accuracy and reliability of exhaust data. In exhaust performance analysis, accurate and reliable exhaust data is the basis for drawing correct conclusions. If the exhaust data transmission quality is poor, it may lead to data distortion and increased errors, thus affecting the accuracy and reliability of exhaust performance analysis. Therefore, by considering exhaust data transmission quality indicators, the accuracy and reliability of exhaust data can be ensured, thereby improving the accuracy and reliability of exhaust performance analysis, reducing data errors and distortions, and more accurately reflecting the performance and status of the exhaust system.

[0106] The specific analysis method for the exhaust performance indicators is as follows:

[0107] ;

[0108] In the formula, For exhaust performance indicators, It is a natural constant. This is the starting point of the exhaust cycle. This is the end time of the exhaust cycle. For any point in time within the exhaust cycle, , For exhaust data transmission quality indicators, To control the exhaust performance impact index corresponding to the unit value of the exhaust data transmission quality index preset in the database, For exhaust gas during the exhaust cycle Real-time exhaust flow deviation at a given time point To control the preset allowable deviation value of exhaust flow in the database, This represents the exhaust pressure deviation value during the exhaust cycle. To control the preset allowable deviation value of exhaust pressure in the database, This represents the average nitrogen oxide concentration in the exhaust gas during the exhaust cycle. a nitrogen oxide concentration allowed by the control database, an average sulfur dioxide concentration of the exhaust gas in the exhaust period, a sulfur dioxide concentration allowed by the control database, an average particulate matter concentration of the exhaust gas in the exhaust period, a particulate matter concentration allowed by the control database.

[0109] It should be explained that any time point in the above exhaust period refers to any instant in the exhaust period, which can be the beginning, the end or any time in between; the real-time exhaust flow deviation value refers to the difference between the real-time exhaust flow of the exhaust gas in the exhaust period and the exhaust reference flow preset by the control database; the exhaust flow allowed deviation value preset by the control database refers to the maximum difference between the allowed exhaust flow and the exhaust reference flow under normal working conditions; the exhaust pressure deviation value refers to the difference between the average exhaust pressure of the exhaust gas in the exhaust period and the exhaust reference pressure preset by the control database; the exhaust pressure allowed deviation value preset by the control database refers to the maximum difference between the allowed exhaust pressure and the exhaust reference pressure under normal working conditions; the average nitrogen oxide concentration refers to the average value of the measured nitrogen oxide concentration in the exhaust period; the nitrogen oxide concentration allowed by the control database refers to the maximum allowed value of the nitrogen oxide concentration in the exhaust gas under normal working conditions; the average sulfur dioxide concentration refers to the average value of the measured sulfur dioxide concentration in the exhaust period; the sulfur dioxide concentration allowed by the control database refers to the maximum allowed value of the sulfur dioxide concentration in the exhaust gas under normal working conditions; the average particulate matter concentration refers to the average value of the measured particulate matter concentration in the exhaust period; the particulate matter concentration allowed by the control database refers to the maximum allowed value of the particulate matter concentration in the exhaust gas under normal working conditions; the exhaust performance influence index corresponding to the exhaust data transmission quality index unit value preset by the control database indicates the influence degree of the exhaust data transmission quality index unit value on the exhaust performance index, and the control database stores the corresponding relationship between the exhaust data transmission quality index unit value and the corresponding exhaust performance influence index, for example, inputting the exhaust data transmission quality index unit value into the control database, the control database can match the exhaust performance influence index corresponding to the exhaust data transmission quality index unit value.

[0110] In the embodiment, the lower exhaust data transmission quality index leads to inaccurate or incomplete exhaust data, thereby affecting the accurate evaluation of the exhaust performance; the larger exhaust flow deviation value, even greater than the preset exhaust flow allowable deviation value, directly leads to poor exhaust or excessive emission, thereby reducing the exhaust performance index; the larger exhaust pressure deviation value, even greater than the preset exhaust pressure allowable deviation value, indicates that there is blockage or leakage in the exhaust process, thereby reducing the exhaust performance index; the higher average nitrogen oxide concentration, even higher than the preset nitrogen oxide allowable concentration, indicates incomplete combustion or excessively high combustion temperature, thereby reducing the exhaust performance index; the higher average sulfur dioxide concentration, even higher than the preset sulfur dioxide allowable concentration, also indicates incomplete combustion or excessively high sulfur content of fuel, thereby directly reducing the exhaust performance index; the higher average particulate matter concentration, even higher than the preset particulate matter allowable concentration, indicates incomplete exhaust combustion or poor exhaust filtration effect, thereby reducing the exhaust performance index; therefore, by analyzing each parameter in the exhaust performance index in detail, problems in the exhaust process can be found and diagnosed in time, which helps to take maintenance measures in advance, prevent problems from worsening, and ensure the normal operation of the exhaust function.

[0111] Specifically, the exhaust performance comparison result is determined according to the exhaust performance comparison result, and a warning prompt for the exhaust treatment of the exhaust gas is issued if necessary. The specific determination process is as follows:

[0112] If the exhaust performance index is greater than or equal to the preset exhaust performance index limit value in the control database, the exhaust performance comparison result is recorded as an exhaust performance first comparison result.

[0113] If the exhaust performance index is less than the preset exhaust performance index limit value in the control database, the exhaust performance comparison result is recorded as an exhaust performance second comparison result.

[0114] If the exhaust performance comparison result is the exhaust performance second comparison result, a warning prompt for the exhaust treatment of the exhaust gas is needed.

[0115] In the present embodiment, the exhaust performance index is compared with the preset exhaust performance index boundary value in the control database. When the exhaust performance index is greater than or equal to the preset exhaust performance index boundary value in the control database, it means that the performance of the exhaust emission has reached or exceeded the preset standard, and it is considered to be in line with or better than the expected emission performance. Therefore, the exhaust performance comparison result is recorded as the first exhaust performance comparison result, indicating that the emission performance is good or meets the standard. When the exhaust performance index is less than the preset exhaust performance index boundary value in the control database, it means that the performance of the exhaust emission is lower than the preset standard, which may indicate that there is a problem with the equipment, the fuel quality is poor, or the emission control strategy needs to be adjusted. Therefore, the exhaust performance comparison result is recorded as the second exhaust performance comparison result, indicating that the emission performance does not meet the standard or there is a potential problem. If the exhaust performance comparison result is the second exhaust performance comparison result, i.e., the emission performance does not meet the standard or there is a potential problem, a warning prompt needs to be issued for the exhaust emission treatment. The specific warning prompt can be displayed as a reminder text in the automatic control platform, such as "Warning: Exhaust emission performance does not meet the standard, please check if the exhaust pipe is blocked or there is a leak!"

[0116] Referring to Figure 2 The second aspect of the present application provides a method, comprising: S1. Data transmission detection: detecting the exhaust data obtained during the exhaust operation stage to obtain exhaust detection data, transmitting the exhaust detection data to the automatic control platform, based on the process of transmitting the exhaust detection data, obtaining data transmission parameters, analyzing to obtain data transmission quality indicators, comparing the data transmission quality indicators with the preset data transmission quality indicator boundary value in the control database to obtain a data transmission comparison result, and determining whether a warning prompt is needed for the process of transmitting the exhaust detection data based on the data transmission comparison result.

[0117] S2. Exhaust detection: the automatic control platform pre-processes the obtained exhaust detection data, records the pre-processed exhaust detection data as exhaust property data, and analyzes to obtain an exhaust pollution index, compares the exhaust pollution index with the preset exhaust pollution index threshold value in the control database to obtain an exhaust pollution comparison result, and determines whether the pre-set exhaust emission treatment method needs to be controlled based on the exhaust pollution comparison result.

[0118] S3. Exhaust emission detection: detecting and obtaining exhaust performance data during the exhaust emission treatment process, analyzing to obtain an exhaust performance index, comparing the exhaust performance index with the preset exhaust performance index boundary value in the control database to obtain an exhaust performance comparison result, and finally determining whether a warning prompt is needed for the exhaust emission treatment based on the exhaust performance comparison result.

[0119] The above is only an example and description of the structure of the present application. Those skilled in the art can make various modifications or supplements to the described specific embodiments or replace them with similar ways, as long as they do not deviate from the structure of the present application or exceed the scope defined in the specification, which shall belong to the protection scope of the present application.

Claims

1. An automatic control system for exhaust gas treatment, characterized by, The exhaust gas detection module is used for the automatic control platform to preprocess the obtained exhaust gas detection data, record the exhaust gas detection data after preprocessing as exhaust gas property data, and analyze the exhaust gas property data to obtain an exhaust gas pollution index, compare the exhaust gas pollution index with a preset exhaust gas pollution index threshold value in the control database, obtain an exhaust gas pollution comparison result, and determine whether the exhaust gas emission treatment mode preset in advance needs to be controlled according to the exhaust gas pollution comparison result. The exhaust gas detection module is used for the automatic control platform to preprocess the obtained exhaust gas detection data, record the exhaust gas detection data after preprocessing as exhaust gas property data, and analyze the exhaust gas property data to obtain an exhaust gas pollution index, compare the exhaust gas pollution index with a preset exhaust gas pollution index threshold value in the control database, obtain an exhaust gas pollution comparison result, and determine whether the exhaust gas emission treatment mode preset in advance needs to be controlled according to the exhaust gas pollution comparison result. The exhaust gas detection module is used for the automatic control platform to preprocess the obtained exhaust gas detection data, record the exhaust gas detection data after preprocessing as exhaust gas property data, and analyze the exhaust gas property data to obtain an exhaust gas pollution index, compare the exhaust gas pollution index with a preset exhaust gas pollution index threshold value in the control database, obtain an exhaust gas pollution comparison result, and determine whether the exhaust gas emission treatment mode preset in advance needs to be controlled according to the exhaust gas pollution comparison result. The data transmission quality index is specifically analyzed as follows: The data transmission parameter specifically includes a real-time data transmission rate, a real-time transmission delay time length, a real-time transmission signal strength, a real-time transmission noise strength, a real-time transmission bandwidth utilization rate, a data packet sending quantity, and a data packet receiving quantity of the exhaust gas detection data in a data transmission cycle. The real-time transmission delay time length and the real-time transmission signal strength of the exhaust gas detection data in the data transmission cycle are processed by ratio to obtain a real-time signal-to-noise ratio of the exhaust gas detection data in the data transmission cycle. The data packet sending quantity of the exhaust gas detection data in the data transmission cycle is subtracted by the data packet receiving quantity to obtain a data packet loss quantity, and the data packet loss quantity is processed by ratio with the data packet sending quantity to obtain a data packet loss rate of the exhaust gas detection data in the data transmission cycle. The real-time data transmission rate, the real-time transmission delay time length, the real-time signal-to-noise ratio, the real-time transmission bandwidth utilization rate, and the data packet loss rate of the exhaust gas detection data in the data transmission cycle are comprehensively analyzed to obtain the data transmission quality index. The specific judgment process of determining whether the exhaust gas detection data transmission process needs to be warned according to the data transmission comparison result is as follows:

2. The automatic control system for exhaust gas treatment according to claim 1, characterized in that: If the data transmission quality index is greater than or equal to the data transmission quality index limit value preset in the control database, the data transmission comparison result is recorded as a transmission first comparison result. If the data transmission quality index is less than the data transmission quality index limit value preset in the control database, the data transmission comparison result is recorded as a transmission second comparison result. If the data transmission comparison result is the transmission second comparison result, the exhaust gas detection data transmission process is directly warned. The specific acquisition process of the exhaust gas property data is as follows:

3. The automatic control system for exhaust gas treatment according to claim 1, wherein: ​ The automatic control platform pre-processes the obtained tail gas detection data, and the specific pre-processing includes data cleaning, data calibration, and data normalization processing, and the pre-processed tail gas detection data is recorded as tail gas property data; The tail gas property data specifically includes real-time temperature, real-time moisture content, real-time nitrogen oxide concentration, real-time sulfur dioxide concentration, and real-time particulate matter concentration of the tail gas in the detection period.

4. The automatic control system for exhaust gas treatment according to claim 1, wherein: The specific analysis process of the tail gas pollution index is as follows: The real-time nitrogen oxide concentration, real-time sulfur dioxide concentration, and real-time particulate matter concentration of the tail gas in the detection period are respectively subjected to ratio processing with the nitrogen oxide reference concentration, sulfur dioxide reference concentration, and particulate matter reference concentration preset in the control database, to obtain the real-time nitrogen oxide concentration ratio, real-time sulfur dioxide concentration ratio, and real-time particulate matter concentration ratio of the tail gas in the detection period. The data transmission quality index, real-time temperature, real-time moisture content, real-time nitrogen oxide concentration ratio, real-time sulfur dioxide concentration ratio, and real-time particulate matter concentration ratio of the tail gas in the detection period are comprehensively analyzed to obtain the tail gas pollution index, and the specific analysis method is as follows: ； In the formula, The exhaust pollution index, It is a natural constant. This is the starting point of the detection cycle. The end time of the testing cycle, For any point in time within the detection period, , For exhaust emissions within the testing cycle Real-time temperature at a given time point. To control the reference temperature preset in the database, For exhaust emissions within the testing cycle Real-time moisture content at a given time point. To control the preset reference moisture content in the database, For exhaust emissions within the testing cycle Real-time nitrogen oxide concentration ratio at a given time point To control the pollution impact factor corresponding to the unit value of nitrogen oxide concentration in the database, For exhaust emissions within the testing cycle Real-time sulfur dioxide concentration ratio at a given time point To control the pollution impact factor corresponding to the unit value of sulfur dioxide concentration in the database, For exhaust emissions within the testing cycle Real-time particulate matter concentration ratio at a given time point To control the pollution impact factor corresponding to the unit value of particulate matter concentration in the database, For data transmission quality indicators, To control the pollution impact factor corresponding to the unit value of the preset data transmission quality index of the database.

5. The automatic control system for exhaust gas treatment according to claim 1, wherein: The specific judgment process of whether the pre-set tail gas exhaust treatment method needs to be controlled according to the tail gas pollution comparison result is as follows: If the tail gas pollution index is greater than the tail gas pollution index threshold preset in the control database, the tail gas pollution comparison result is recorded as a tail gas pollution first comparison result, and the tail gas is treated by the pre-set tail gas exhaust treatment method; If the tail gas pollution index is less than or equal to the tail gas pollution index threshold preset in the control database, the tail gas pollution comparison result is recorded as a tail gas pollution second comparison result, and the tail gas is treated by the pre-set tail gas exhaust treatment method; If the tail gas pollution comparison result is the tail gas pollution first comparison result, the pre-set tail gas exhaust treatment method needs to be controlled; The specific control of the pre-set tail gas exhaust treatment method is to increase the processing capacity of the tail gas treatment device and to add a tail gas purification link; Based on the result of controlling the pre-set tail gas exhaust treatment method, control tail gas property data is obtained and analyzed to obtain a tail gas pollution control index, and if the tail gas pollution control index is still greater than the tail gas pollution index threshold preset in the control database, a warning prompt is directly given to the exhaust treatment method of the tail gas.

6. The automatic control system for exhaust gas treatment according to claim 1, wherein: The exhaust performance data specifically includes real-time exhaust flow, average exhaust pressure, average nitrogen oxide concentration, average sulfur dioxide concentration, and average particulate matter concentration of the tail gas in the exhaust period. The exhaust performance data is transmitted to the automatic control platform, and based on the exhaust performance data transmission process, exhaust data transmission parameters are obtained, and exhaust data transmission quality indexes are analyzed.

7. The automatic control system for exhaust gas treatment according to claim 6, characterized in that: The specific analysis process of the exhaust performance index is as follows: The real-time exhaust flow of the tail gas in the exhaust period is subjected to difference processing with the exhaust reference flow preset in the control database to obtain a real-time exhaust flow deviation value of the tail gas in the exhaust period. The average exhaust pressure of the tail gas in the exhaust period is subjected to difference processing with the exhaust reference pressure preset in the control database to obtain an exhaust pressure deviation value of the tail gas in the exhaust period. The exhaust performance index is obtained by comprehensively analyzing the exhaust data transmission quality index, real-time exhaust flow deviation value of the exhaust gas in the exhaust period, exhaust pressure deviation value, average nitrogen oxide concentration, average sulfur dioxide concentration, and average particulate matter concentration.

8. The automatic control system for exhaust gas treatment according to claim 1, wherein: The exhaust performance comparison result is determined according to whether the exhaust performance index is greater than or equal to the preset exhaust performance index limit value in the control database, and the specific determination process is as follows: If the exhaust performance index is greater than or equal to the preset exhaust performance index limit value in the control database, the exhaust performance comparison result is recorded as an exhaust performance first comparison result. If the exhaust performance index is less than the preset exhaust performance index limit value in the control database, the exhaust performance comparison result is recorded as an exhaust performance second comparison result. If the exhaust performance comparison result is the exhaust performance second comparison result, a warning prompt for the exhaust gas treatment is needed.

9. The method of using the automatic control system for exhaust gas treatment according to any one of claims 1-8, characterized in that: The method comprises the following steps: S1. Data transmission detection: detecting the exhaust gas data obtained in the exhaust operation stage to obtain exhaust detection data, transmitting the exhaust detection data to the automatic control platform, obtaining data transmission parameters based on the process of transmitting the exhaust detection data, analyzing to obtain a data transmission quality index, comparing the data transmission quality index with a preset data transmission quality index limit value in the control database to obtain a data transmission comparison result, and determining whether a warning prompt is needed for the process of transmitting the exhaust detection data according to the data transmission comparison result; S2. Exhaust detection: the automatic control platform pre-processes the obtained exhaust detection data, records the pre-processed exhaust detection data as exhaust property data, and analyzes to obtain an exhaust pollution index, compares the exhaust pollution index with a preset exhaust pollution index threshold value in the control database to obtain an exhaust pollution comparison result, and determines whether the pre-set exhaust gas treatment method needs to be controlled according to the exhaust pollution comparison result; S3. Exhaust gas exhaust detection: detecting and obtaining exhaust performance data in the exhaust gas treatment process, analyzing to obtain an exhaust performance index, comparing the exhaust performance index with a preset exhaust performance index limit value in the control database to obtain an exhaust performance comparison result, and finally determining whether a warning prompt is needed for the exhaust gas treatment according to the exhaust performance comparison result.

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