Underground space combustible gas monitoring signal acquisition and transmission system

Abstract

The invention relates to the technical field of combustible gas monitoring, in particular to an underground space combustible gas monitoring signal acquisition and transmission system. The underground space combustible gas monitoring signal acquisition and transmission system comprises an acquisition and transmission system, a system management and maintenance unit, an energy management unit and a server. According to the invention, by arranging the distributed sensor network module to cooperate with the gas sensor module, large-range and full-coverage monitoring of an underground space can be realized, a monitoring blind area is effectively avoided, and meanwhile, by arranging the adaptive signal node module and the low-power wide area network module, a transmission mode can be intelligently selected according to an environment; according to the system, stable signal transmission in a complex underground environment is ensured, long-distance and low-energy-consumption transmission can be carried out, the data reliability is effectively improved, and in addition, by arranging the data intelligent correction module and the adaptive algorithm module, the system can keep the accuracy of sensor data unchanged in the complex and variable underground environment.

Description

Technical Field

[0001] The present invention relates to the technical field of combustible gas monitoring, and in particular to an underground space combustible gas monitoring signal acquisition and transmission system. Background Art

[0002] In the fast-paced development of modern society, underground space is being used more and more widely, such as subways, underground commercial areas, mines, etc. However, the underground space environment is complex, the gas distribution is uneven, and the concentration of combustible gas in particular fluctuates violently.

[0003] However, due to technical limitations, the existing monitoring signal acquisition and transmission systems often have difficulty accurately capturing weak gas signals, resulting in inaccurate monitoring data, which directly affects the effectiveness of safety warnings. In addition, due to the harsh communication environment in underground space, severe electromagnetic wave attenuation, interference factors such as metal structures, water, and soil make monitoring signals susceptible to interference during transmission, unstable communication quality, and even data loss in severe cases. At the same time, traditional sensors often lose data accuracy due to temperature changes and humidity in complex and changeable underground environments.

[0004] Therefore, there is an urgent need for a new type of combustible gas monitoring signal acquisition and transmission system, which should have high sensitivity and communication quality, strong anti-interference ability, adapt to complex underground space working environment, and maintain data accuracy. Summary of the invention

[0005] The purpose of the present invention is to provide an underground combustible gas monitoring signal acquisition and transmission system to solve the problem that the existing acquisition and transmission system proposed in the above background technology is difficult to accurately capture weak gas signals, has poor anti-interference ability and cannot adapt to the complex underground space working environment, resulting in reduced data accuracy.

[0006] To achieve the above-mentioned object, the present invention aims to provide an underground space combustible gas monitoring signal acquisition and transmission system, including an acquisition and transmission system, a system management and maintenance unit for managing and maintaining the acquisition and transmission system, an energy management unit for providing energy to the acquisition and transmission system, and a server for collecting acquisition and transmission system data; The acquisition and transmission system includes a gas detection unit, a data acquisition and processing unit, a signal transmission unit, an environmental adaptability unit, and an alarm and feedback unit.

[0007] The gas detection unit is internally provided with a gas sensor module, a distributed sensor network module and a sensor health monitoring module; An adaptive signal node module is provided inside the signal transmission unit; The environmental adaptability unit is internally provided with a data intelligent correction module and an adaptability algorithm module.

[0008] As a further improvement of the technical solution, the gas detection unit is used to detect the concentration of various combustible gases in the underground space in real time and convert it into an electrical signal that can be collected and processed; The data acquisition and processing unit is used to collect the signal output by the gas detection unit, perform data processing operations at the same time, and convert it into a data format suitable for transmission; The signal transmission unit is used to transmit the data processed by the data acquisition and processing unit to the server through a reliable communication method; The environmental adaptability unit is used to monitor the environmental parameters of the underground space (such as temperature, humidity, pressure, etc.), and automatically adjust the parameters of the gas detection unit and the signal transmission unit according to environmental changes to ensure the accuracy and reliability of the detection data; The alarm and feedback unit is used to set the alarm threshold and send out an alarm signal in time according to the collected combustible gas concentration data.

[0009] As a further improvement of the technical solution, the gas sensor module is used to detect the concentration of various combustible gases in the underground space in real time through multiple gas sensors and convert them into electrical signals to ensure accurate monitoring of gas concentration; The distributed sensor network module is used to realize the networking of multiple gas sensors, and to aggregate the detection data of multiple sensors to a central node through wireless or wired communication, thereby enhancing the coverage and flexibility of the system and supporting the monitoring of a large range of underground spaces; The sensor health monitoring module is used to monitor the working status and performance of the gas sensor, including the response time, sensitivity and drift parameters of the sensor, to ensure that the sensor is in good working condition, and to promptly detect and report faulty or poorly performing sensors for easy maintenance or replacement.

[0010] As a further improvement of the technical solution, the data acquisition and processing unit is internally provided with an edge computing module, a data compression and encoding module, and a data anomaly detection module; The edge computing module is used to perform preliminary processing on the raw data collected by the gas sensor module, such as data filtering, outlier removal, and simple algorithm operations, to reduce the amount of data transmitted, reduce the pressure on network bandwidth, and improve the real-time performance of data processing; The data compression and encoding module is used to compress and encode the data processed by the edge computing module to reduce the bandwidth and storage space required for data transmission, improve data transmission efficiency, and ensure the reliability of data transmission; The data anomaly detection module is used to monitor the collected data in real time, determine whether the data has anomalies, such as mutations, drifts, etc., and issue alarms in time to prevent abnormal data from affecting system analysis results and ensure the accuracy and reliability of the data.

[0011] As a further improvement of the technical solution, a low power consumption wide area network module is also provided inside the signal transmission unit; The adaptive signal node module is used to dynamically adjust signal transmission parameters, such as transmission power, modulation mode, etc., according to the network environment and signal strength of the underground space, so as to ensure the reliability and stability of data transmission, adapt to the complex wireless propagation environment of the underground space, and maximize the battery life; The low-power wide area network module is used to transmit the data processed by the data acquisition and processing unit to the server through the low-power wide area network, thereby meeting the low-power consumption requirements for long-term monitoring of underground spaces.

[0012] As a further improvement of the technical solution, a composite environment monitoring module is also provided inside the environmental adaptability unit; The composite environment monitoring module is used to monitor the environmental parameters of temperature, humidity and pressure of the underground space in real time, provide environmental information for the correction and analysis of combustible gas concentration data, and determine the impact of the environment on sensor performance; The data intelligent correction module is used to perform intelligent correction on the combustible gas concentration data according to the environmental parameters collected by the composite environmental monitoring module and the preset correction model, so as to improve the accuracy and reliability of the data and reduce the influence of environmental factors on the measurement results; The adaptive algorithm module is used to automatically adjust the system's monitoring parameters and algorithms, such as sensor sampling frequency, data processing methods, etc., according to the dynamic changes of the underground space environment, so as to adapt to different environmental conditions and ensure the stable operation and data quality of the system in various environments.

[0013] As a further improvement of the technical solution, the alarm and feedback unit is internally provided with an abnormal alarm module and a remote feedback module; The abnormal alarm module is used to perform sensor health abnormality alarm according to the sensor health abnormality information; The remote feedback module is used to transmit sensor health abnormality alarm information to the server in real time.

[0014] As a further improvement of the technical solution, the system management and maintenance unit is internally provided with a user interface module, an intelligent diagnosis module and a database management module; The user interface module is connected to each module in the acquisition and transmission system, and is used to receive status information of each module and feed back user instructions to the corresponding module; The intelligent diagnosis module is connected to each module in the acquisition and transmission system to receive the operation status of each module. The output end of the intelligent diagnosis module is connected to the user interface module to feed back the fault information to the user through the user interface module. The database management module is connected to each module in the collection and transmission system and is used to periodically receive and store data from each module.

[0015] As a further improvement of the technical solution, the energy management unit is internally provided with a solar power supply module, a backup power supply module and an energy management module; The solar power supply module is connected to each module inside the collection and transmission system to provide a continuous green power source for the entire system; The backup power supply module is connected to each module in the collection and transmission system, and is used to provide backup power when the solar power supply module is insufficient. The output end of the energy management module is connected to the solar power supply module and the backup power supply module respectively, so as to monitor and manage the energy consumption of the two.

[0016] As a further improvement of the technical solution, the output end of the gas sensor module is connected to the distributed sensor network module on the one hand, for transmitting the concentration data of the monitored target combustible gas to the distributed sensor network module for integration and aggregation, and is connected to the sensor health monitoring module on the other hand, for providing a sensor health status monitoring channel; The output end of the sensor health monitoring module is connected to the data anomaly detection module for feeding back the health status information of the sensor, the output end of the data anomaly detection module is connected to the anomaly alarm module, the output end of the anomaly alarm module is connected to the remote feedback module, and the output end of the remote feedback module is connected to the server for transmitting the sensor information of health anomaly; The output end of the distributed sensor network module is connected to the edge computing module for transmitting the integrated and converged multi-point data, the output end of the edge computing module is connected to the data compression and encoding module for transmitting the preliminarily processed data, and the output end of the data compression and encoding module is connected to the data intelligent correction module for transmitting the compressed and encoded data; The output end of the composite environment monitoring module is connected to the data intelligent correction module on the one hand, and is connected to the adaptive algorithm module on the other hand, for transmitting the monitored underground space environmental parameters, and the output end of the adaptive algorithm module is connected to the gas sensor module, for adjusting the monitoring parameters and algorithms of the gas sensor module according to the underground space environmental parameters; The output end of the data intelligent correction module is connected to the adaptive signal node module for transmitting the data after intelligent correction. The output end of the adaptive signal node module is connected to the low power wide area network module for transmitting the data after the signal transmission parameters are adjusted. The output end of the low power wide area network module is connected to the server for transmitting the data using the low power wide area network.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The underground space combustible gas monitoring signal acquisition and transmission system has all-round monitoring capabilities. By setting up a distributed sensor network module in conjunction with a gas sensor module, it can achieve large-scale, full-coverage monitoring of underground spaces, effectively avoiding monitoring blind spots. At the same time, the sensor health monitoring module can be used to check the sensor status in real time to avoid inaccurate monitoring data due to sensor damage, which affects the safety warning effect.

[0018] 2. The underground combustible gas monitoring signal acquisition and transmission system has stable monitoring signal transmission quality. By setting up an adaptive signal node module, it can intelligently select the transmission method according to the environment, ensuring stable signal transmission in a complex underground environment and effectively improving data reliability. At the same time, by setting up a low-power wide area network module, the system can perform long-distance, low-energy transmission, thereby greatly reducing the data transmission burden and improving the real-time and efficiency of monitoring data.

[0019] 3. The underground combustible gas monitoring signal acquisition and transmission system can maintain the accuracy of sensor data in a complex and changeable underground environment. By setting up a data intelligent correction module and an adaptive algorithm module, the gas measurement results can be automatically corrected according to environmental data during gas monitoring. At the same time, the acquisition frequency and sensitivity can be dynamically adjusted for different climates and environments, so as to adapt to different environmental conditions and improve accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the overall principle block diagram of the underground space combustible gas monitoring signal acquisition and transmission system of the present invention.

[0021] Figure 2 It is a specific operation flow chart of the underground space combustible gas monitoring signal acquisition and transmission system of the present invention. DETAILED DESCRIPTION

[0022] 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.

[0023] In a specific embodiment, Figure 1 As shown, a system for collecting and transmitting combustible gas monitoring signals in an underground space includes a collection and transmission system, a system management and maintenance unit for managing and maintaining the collection and transmission system, an energy management unit for providing energy to the collection and transmission system, and a server for collecting data of the collection and transmission system.

[0024] The system management and maintenance unit is internally provided with a user interface module, an intelligent diagnosis module, and a database management module. The user interface module is connected to each module in the acquisition and transmission system, and is used to receive the status information of each module and feed back the user's instructions to the corresponding module; the intelligent diagnosis module is connected to each module in the acquisition and transmission system, and is used to receive the operating status of each module. The output end of the intelligent diagnosis module is connected to the user interface module, and is used to feed back the fault information to the user through the user interface module; the database management module is connected to each module in the acquisition and transmission system, and is used to regularly receive and store the data of each module.

[0025] The energy management unit is internally provided with a solar power supply module, a backup power supply module and an energy management module. The solar power supply module is connected to each module inside the collection and transmission system to provide a continuous green power source for the entire system; the backup power supply module is connected to each module inside the collection and transmission system to provide a backup power supply when the solar power supply module is insufficient; the output end of the energy management module is respectively connected to the solar power supply module and the backup power supply module to monitor and manage the energy consumption of the two.

[0026] The acquisition and transmission system includes a gas detection unit, a data acquisition and processing unit, a signal transmission unit, an environmental adaptability unit, and an alarm and feedback unit. The gas detection unit is internally provided with a gas sensor module, a distributed sensor network module, and a sensor health monitoring module; the data acquisition and processing unit is internally provided with an edge computing module, a data compression and encoding module, and a data anomaly detection module; the signal transmission unit is internally provided with an adaptive signal node module and a low-power wide area network module; the environmental adaptability unit is internally provided with a composite environment monitoring module, a data intelligent correction module, and an adaptive algorithm module; the alarm and feedback unit is internally provided with an abnormal alarm module and a remote feedback module.

[0027] In addition, the output end of the gas sensor module is connected to the distributed sensor network module on the one hand, for transmitting the concentration data of the monitored target combustible gas to the distributed sensor network module for integration and aggregation, and is connected to the sensor health monitoring module on the other hand, for providing a sensor health status monitoring channel; The output end of the sensor health monitoring module is connected to the data anomaly detection module for feeding back the health status information of the sensor. The output end of the data anomaly detection module is connected to the anomaly alarm module. The output end of the anomaly alarm module is connected to the remote feedback module. The output end of the remote feedback module is connected to the server for transmitting the sensor information of health anomaly. The output end of the distributed sensor network module is connected to the edge computing module for transmitting the integrated and converged multi-point data. The output end of the edge computing module is connected to the data compression and encoding module for transmitting the preliminarily processed data. The output end of the data compression and encoding module is connected to the data intelligent correction module for transmitting the compressed and encoded data. The output end of the composite environment monitoring module is connected to the data intelligent correction module on the one hand, and is connected to the adaptive algorithm module on the other hand, for transmitting the monitored underground space environmental parameters. The output end of the adaptive algorithm module is connected to the gas sensor module, for adjusting the monitoring parameters and algorithms of the gas sensor module according to the underground space environmental parameters. The output end of the data intelligent correction module is connected to the adaptive signal node module for transmitting the data after intelligent correction. The output end of the adaptive signal node module is connected to the low-power wide area network module for transmitting the data after the signal transmission parameters are adjusted. The output end of the low-power wide area network module is connected to the server for transmitting data using the low-power wide area network.

[0028] In addition, the specific operation process of this system is as follows Figure 2 In the actual application process: 1. Gas concentration detection: Multiple gas sensors (gas sensor modules) monitor the concentration of various combustible gases in the underground space in real time and convert the data into electrical signals.

[0029] 2. Data aggregation and preprocessing: Gas sensor data is aggregated to the central node through the distributed sensor network module. Subsequently, the edge computing module performs preliminary processing on the data (filtering, outlier removal, etc.) to reduce the amount of data.

[0030] 3. Data compression, coding and correction: The processed data is compressed and encoded by the data compression and coding module to improve transmission efficiency. After that, the data is sent to the data intelligent correction module, which uses the temperature, humidity, pressure and other environmental information provided by the composite environment monitoring module for intelligent correction to improve data accuracy.

[0031] The specific steps of the data intelligent correction module for intelligent correction are as follows: A. Receiving data: The data intelligent correction module receives data from the data compression and encoding module. These data are combustible gas concentration data that have been preliminarily processed.

[0032] B. Receiving environmental parameters: At the same time, the module receives environmental parameters such as temperature, humidity and pressure from the composite environment monitoring module.

[0033] C. Applying the correction model: Based on the received environmental parameters and the preset correction model, the data intelligent correction module performs intelligent correction. The correction model can be a regression model based on historical data, a machine learning algorithm, or other statistical models.

[0034] D. Calculate the correction value: Calculate the corresponding correction value according to the environmental parameters and model, for example: The effect of temperature on the output value of gas sensors; The effect of humidity on sensor sensitivity; Correction of concentration readings for pressure changes.

[0035] E. Update data: Combine the original combustible gas concentration data with the calculated correction value and output the corrected data to ensure the accuracy and reliability of the data.

[0036] F. Transfer correction data: transfer the corrected data to the adaptive signal node module to prepare for subsequent data transmission.

[0037] 4. Signal transmission and adaptive adjustment: The corrected data is adjusted through the adaptive signal node module for transmission parameters (power, modulation mode, etc.) to adapt to the complex environment of the underground space. Then, the data is transmitted to the server through the low-power wide area network module via the low-power wide area network. The adaptive algorithm module dynamically adjusts the sensor sampling frequency and algorithm according to environmental parameters.

[0038] The specific steps for the adaptive signal node module to adjust the transmission parameters are as follows: A. Receiving corrected data: The adaptive signal node module receives corrected data from the data intelligent correction module.

[0039] B. Monitoring network environment: This module monitors the network environment of the underground space in real time, including signal strength, noise level and communication quality.

[0040] C. Evaluate transmission parameters: Evaluate whether existing transmission parameters (such as transmission power, modulation mode, etc.) are suitable for effective data transmission based on the current network environment.

[0041] D. Dynamic adjustment parameters: If the signal strength is low, you may need to increase the transmission power; If the network environment is complex, you may need to select a more robust modulation method to ensure data integrity; Adaptively adjust the data transmission rate according to the real-time signal quality.

[0042] E. Optimize configuration: Optimize transmission parameters and prepare to transmit corrected data. These configurations should improve the reliability and efficiency of data transmission while meeting the battery life.

[0043] F. Perform data transmission: Use the optimized transmission parameters to transmit the corrected data to the server through the low-power wide area network module.

[0044] The specific steps of the adaptive algorithm module to dynamically adjust the sensor sampling frequency and algorithm according to environmental parameters are as follows: A. Receiving environment parameters: The adaptive algorithm module receives real-time environmental parameters from the composite environmental monitoring module, including temperature, humidity, pressure, and any other environmental factors that may affect the performance of the sensor.

[0045] B. Set initial parameters and thresholds: According to the system design specifications, set the initial sensor sampling frequency and data processing algorithm, and define the threshold for adaptive adjustment. For example: Set a temperature threshold and adjust the sampling frequency when the ambient temperature is higher or lower than this value; Set humidity and pressure thresholds to evaluate the optimal working state of the sensor.

[0046] C. Real-time monitoring of environmental changes: Continuously monitor received environmental parameters for deviations from set thresholds and record any significant changes.

[0047] D. Evaluation sampling frequency: High ambient pressure or high humidity: If the ambient conditions are not good, the accuracy and response speed of the sensor may decrease. The sampling frequency can be appropriately reduced to reduce the error (for example, from once per second to once every two seconds).

[0048] Good environmental conditions: If the environmental conditions are stable and good (for example, temperature, humidity, and pressure are within normal ranges), the sampling frequency can be increased to obtain more accurate real-time monitoring (for example, from once every two seconds to once every second).

[0049] E. Select data processing algorithm: Choose the appropriate algorithm according to the changes in environmental parameters: In complex and extreme environments, choose more robust algorithms (such as median filtering, Kalman filtering, etc.) to process data to enhance anti-interference capabilities.

[0050] When environmental conditions are good, lighter computing algorithms are used to improve system response speed and reduce energy consumption.

[0051] F. Execution parameter adjustment: According to the above evaluation results, dynamically adjust the sampling frequency and data processing algorithm of the sensor. Update the configuration and parameters of the sensor.

[0052] 5. Data storage and alarm: The server receives data and uses the database management module to store the data. At the same time, the sensor health monitoring module continuously monitors the sensor status and passes the health information to the data anomaly detection module. If abnormal information is found, the data anomaly detection module will pass the sensor health anomaly information to the anomaly alarm module, and the anomaly alarm module will issue an alarm. At the same time, the sensor health anomaly information will be sent to the server through the remote feedback module.

[0053] At the same time, the system management and maintenance unit is used for system management and maintenance. The user interface module of the system management and maintenance unit displays the system status and data, and the intelligent diagnosis module performs fault diagnosis and feedback to the user. The energy management unit is used for energy supply and management. The solar power supply module provides the main energy for the entire system, and the backup power module provides backup power when solar energy is insufficient. At the same time, the energy management module is used to monitor and manage energy consumption.

[0054] To sum up, the underground space combustible gas monitoring signal acquisition and transmission system provided by the present invention can achieve large-scale, full-coverage monitoring of underground space by setting up a distributed sensor network module in conjunction with a gas sensor module, effectively avoiding monitoring blind spots, and at the same time, by setting up an adaptive signal node module and a low-power wide area network module, it can intelligently select the transmission mode according to the environment to ensure stable signal transmission in a complex underground environment, and can perform long-distance, low-energy transmission, effectively improving data reliability. In addition, by setting up a data intelligent correction module and an adaptive algorithm module, the system can maintain the accuracy of sensor data in a complex and changeable underground environment.

[0055] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An underground space combustible gas monitoring signal acquisition and transmission system, characterized in that: It includes a collection and transmission system, a system management and maintenance unit for managing and maintaining the collection and transmission system, an energy management unit for providing energy to the collection and transmission system, and a server for collecting data of the collection and transmission system; The acquisition and transmission system includes a gas detection unit, a data acquisition and processing unit, a signal transmission unit, an environmental adaptability unit, and an alarm and feedback unit; The gas detection unit is internally provided with a gas sensor module, a distributed sensor network module and a sensor health monitoring module; An adaptive signal node module is provided inside the signal transmission unit; The environmental adaptability unit is internally provided with a data intelligent correction module and an adaptability algorithm module.

2. The underground space combustible gas monitoring signal acquisition and transmission system according to claim 1 is characterized in that: The gas detection unit is used to detect the concentration of various combustible gases in the underground space in real time and convert it into an electrical signal that can be collected and processed; The data acquisition and processing unit is used to collect the signal output by the gas detection unit, perform data processing operations at the same time, and convert it into a data format suitable for transmission; The signal transmission unit is used to transmit the data processed by the data acquisition and processing unit to the server through a reliable communication method; The environmental adaptability unit is used to monitor the environmental parameters of the underground space and automatically adjust the parameters of the gas detection unit and the signal transmission unit according to environmental changes; The alarm and feedback unit is used to set the alarm threshold and send out an alarm signal in time according to the collected combustible gas concentration data.

3. The underground space combustible gas monitoring signal acquisition and transmission system according to claim 1 is characterized in that: The gas sensor module is used to detect the concentration of various combustible gases in the underground space in real time through multiple gas sensors and convert them into electrical signals; The distributed sensor network module is used to realize networking of multiple gas sensors and aggregate the detection data of multiple sensors to a central node through wireless or wired communication; The sensor health monitoring module is used to monitor the working status and performance of the gas sensor, including the response time, sensitivity and drift parameters of the sensor.

4. The underground space combustible gas monitoring signal acquisition and transmission system according to claim 1 is characterized in that: The data acquisition and processing unit is internally provided with an edge computing module, a data compression and encoding module, and a data anomaly detection module; The edge computing module is used to perform preliminary processing on the raw data collected by the gas sensor module; The data compression and encoding module is used to compress and encode the data processed by the edge computing module; The data anomaly detection module is used to monitor the collected data in real time and determine whether there is an anomaly in the data.

5. The underground space combustible gas monitoring signal acquisition and transmission system according to claim 4 is characterized in that: The signal transmission unit is also provided with a low power consumption wide area network module; The adaptive signal node module is used to dynamically adjust signal transmission parameters according to the network environment and signal strength of the underground space; The low-power wide area network module is used to transmit the data processed by the data acquisition and processing unit to the server through the low-power wide area network.

6. The underground space combustible gas monitoring signal acquisition and transmission system according to claim 5 is characterized in that: A composite environment monitoring module is also provided inside the environmental adaptability unit; The composite environment monitoring module is used to monitor the environmental parameters of temperature, humidity and pressure of the underground space in real time; The data intelligent correction module is used to perform intelligent correction on the combustible gas concentration data according to the environmental parameters collected by the composite environment monitoring module and the preset correction model; The adaptive algorithm module is used to automatically adjust the monitoring parameters and algorithms of the system according to the dynamic changes of the underground space environment.

7. The underground space combustible gas monitoring signal acquisition and transmission system according to claim 6 is characterized in that: The alarm and feedback unit is internally provided with an abnormal alarm module and a remote feedback module; The abnormal alarm module is used to perform sensor health abnormality alarm according to the sensor health abnormality information; The remote feedback module is used to transmit sensor health abnormality alarm information to the server in real time.

8. The underground space combustible gas monitoring signal acquisition and transmission system according to claim 7 is characterized in that: The system management and maintenance unit is internally provided with a user interface module, an intelligent diagnosis module and a database management module; The user interface module is connected to each module in the acquisition and transmission system, and is used to receive status information of each module and feed back user instructions to the corresponding module; The intelligent diagnosis module is connected to each module in the acquisition and transmission system to receive the operation status of each module. The output end of the intelligent diagnosis module is connected to the user interface module to feed back the fault information to the user through the user interface module. The database management module is connected to each module in the collection and transmission system and is used to periodically receive and store data from each module.

9. The underground space combustible gas monitoring signal acquisition and transmission system according to claim 8 is characterized in that: The energy management unit is internally provided with a solar power supply module, a backup power supply module and an energy management module; The solar power supply module is connected to each module inside the collection and transmission system to provide a continuous green power source for the entire system; The backup power supply module is connected to each module in the collection and transmission system, and is used to provide backup power when the solar power supply module is insufficient. The output end of the energy management module is connected to the solar power supply module and the backup power supply module respectively, so as to monitor and manage the energy consumption of the two.

10. The underground space combustible gas monitoring signal acquisition and transmission system according to claim 9 is characterized in that: The output end of the gas sensor module is connected to the distributed sensor network module on the one hand, for transmitting the concentration data of the monitored target combustible gas to the distributed sensor network module for integration and aggregation, and is connected to the sensor health monitoring module on the other hand, for providing a sensor health status monitoring channel; The output end of the sensor health monitoring module is connected to the data anomaly detection module for feeding back the health status information of the sensor, the output end of the data anomaly detection module is connected to the anomaly alarm module, the output end of the anomaly alarm module is connected to the remote feedback module, and the output end of the remote feedback module is connected to the server for transmitting the sensor information of health anomaly; The output end of the distributed sensor network module is connected to the edge computing module for transmitting the integrated and converged multi-point data, the output end of the edge computing module is connected to the data compression and encoding module for transmitting the preliminarily processed data, and the output end of the data compression and encoding module is connected to the data intelligent correction module for transmitting the compressed and encoded data; The output end of the composite environment monitoring module is connected to the data intelligent correction module on the one hand, and is connected to the adaptive algorithm module on the other hand, for transmitting the monitored underground space environmental parameters, and the output end of the adaptive algorithm module is connected to the gas sensor module, for adjusting the monitoring parameters and algorithms of the gas sensor module according to the underground space environmental parameters; The output end of the data intelligent correction module is connected to the adaptive signal node module for transmitting the data after intelligent correction. The output end of the adaptive signal node module is connected to the low power wide area network module for transmitting the data after the signal transmission parameters are adjusted. The output end of the low power wide area network module is connected to the server for transmitting the data using the low power wide area network.

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