Comprehensive monitoring system for high-risk nodes of underground pipe network

Abstract

The invention belongs to the technical field of urban underground pipe network monitoring, and particularly relates to an underground pipe network high-risk node comprehensive monitoring system. A data acquisition and transmission module; a data terminal processing module; an alarm and emergency response module; by arranging a displacement sensor switch, when an intact well lid is arranged on a well and is in a closed state, a data terminal processing module is in a closed state under the gravity pressing effect of the well lid, and at the moment, an alarm and emergency response module is in a normal defense state; when the displacement sensor switch is in an off state, it is indicated that the well lid is lost in the well, and the alarm and emergency response module acquires and senses that the well lid is abnormally damaged or lost and immediately triggers the data terminal processing module; abnormal conditions of the well lids at the corresponding longitude and latitude positions are transmitted to the management and control platform through the data analysis unit and the wireless communication unit, electric energy consumption is not needed, and a powerful guarantee is provided for safe and stable operation of an urban underground pipe network.

Description

Technical Field

[0001] The invention belongs to the technical field of urban underground pipe network monitoring, in particular to a comprehensive monitoring system for high-risk nodes of underground pipe networks. Background Art

[0002] With the acceleration of urbanization, underground pipeline networks, as an important part of urban infrastructure, are directly related to the normal operation of the city and public safety. Their safe and stable operation is an important infrastructure and "lifeline" to ensure the operation of the city. At present, my country is building a relatively complete urban underground pipeline system to enable the construction and management level of underground pipelines to meet the needs of economic and social development and greatly enhance the emergency disaster prevention capabilities. The urban underground pipeline safety monitoring system has become an urgent need.

[0003] The comprehensive monitoring system for high-risk nodes in underground pipeline networks is a system that integrates modern technical means to monitor and manage high-risk nodes in urban underground pipeline networks in real time. When the existing urban underground pipeline network safety monitoring system is in use, with the modernization of cities, there will be more and more underground designs, but the chaos of urban construction has led to urban planning with multiple departments managing their own urban underground pipelines, and the monitoring is chaotic. The urban underground pipeline network safety monitoring system fails to quickly provide real and accurate underground pipeline network data, and cannot realize functions such as rapid query, comprehensive analysis, and rapid emergency response. At the same time, it cannot provide measures for the exchange and sharing of underground pipeline information.

[0004] Moreover, high-risk nodes in underground pipelines, such as manhole covers, liquid levels, gas concentrations, etc., often cause safety accidents due to various reasons. Therefore, it is of great significance to develop an efficient and reliable monitoring system to conduct real-time and comprehensive monitoring of underground pipelines.

[0005] To this end, the present invention provides a comprehensive monitoring system for high-risk nodes in underground pipe networks. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a comprehensive monitoring system for high-risk nodes of underground pipe networks described in the present invention comprises:

[0008] A sensor monitoring module is used to monitor the position status of the manhole cover;

[0009] The data acquisition and transmission module is used to receive the signal monitored by the sensor monitoring module and convert the signal into a data signal to be transmitted to the next module;

[0010] The data terminal processing module is used to process the received data and obtain the abnormal status of the manhole cover through analysis;

[0011] The alarm and emergency response module is used to feed back abnormal status information to the management and control platform and take emergency response measures;

[0012] The sensor monitoring module includes a manhole cover status monitoring unit; the manhole cover status monitoring unit includes a displacement sensor switch for monitoring the change of the manhole cover position and converting it into electrical data;

[0013] One end of the sensor monitoring module is connected to the pipe network body; the pipe network body includes a shaft and an anti-fall net, and the outer wall of the anti-fall net is fixedly connected with four telescopic brackets arranged in a circle; four telescopic rails are fixedly connected to the inner wall of the shaft through a plurality of fixing buckles; the telescopic brackets are respectively slidably connected to the telescopic rails, and a plurality of limit grooves are provided on both sides of the telescopic rails, and the limit grooves are threadedly connected with fastening bolts and are connected to the outer side of the telescopic brackets through fixing nuts; the bottom of the anti-fall net is fixedly connected with a data collector body and a battery, and the data collector body is electrically connected to the data terminal processing module, and the telescopic brackets are installed with solar flashing indicator lights; the displacement sensor switch is installed on one of the telescopic brackets through a torsion spring.

[0014] Preferably, the data acquisition and transmission module includes a data receiving unit, a wireless communication unit and a management and control platform, the data receiving unit is used to receive data from the sensor monitoring module; the input ends of the wireless communication units are connected to the data acquisition device body, and the output ends of the wireless communication units are connected to the management and control platform.

[0015] Preferably, the data terminal processing module also includes a data acquisition and processing unit, a GPS positioning unit and a data analysis unit. The data acquisition and processing unit is used to clean, denoise and normalize the data of the data receiving unit; the GPS positioning unit is used to locate the position coordinates of the shaft; the data analysis unit uses statistics and machine learning algorithms to process data, and discovers patterns and anomalies in the data through analysis.

[0016] Preferably, the management and control platform adopts an NB-IoT module for communication between the data acquisition and transmission module and the data terminal processing module; the output end of the management and control platform is electrically connected to the alarm and emergency response module.

[0017] Preferably, the alarm and emergency response module includes an alarm prompt unit, which includes a communication alarm unit, a buzzer unit and a warning light unit. The communication alarm unit is connected to the management and control platform to send alarm information to the management and control platform; the buzzer unit and the warning light unit are connected to the management and control platform to prompt the alarm information through buzzing and flashing lights respectively; the communication alarm unit, the buzzer unit and the warning light unit cooperate with each other.

[0018] Preferably, the alarm and emergency response module also includes an emergency response unit, which includes an alarm receiving unit, an alarm processing unit and an alarm feedback unit. The input end of the alarm receiving unit is connected to the output end of the data analysis unit, the output end of the alarm receiving unit is connected to the input end of the alarm processing unit, the output end of the alarm processing unit is connected to the input end of the alarm feedback unit, and the output end of the alarm feedback unit is connected to the management and control platform.

[0019] Preferably, the sensor monitoring module also includes a gas concentration monitoring unit and a temperature and liquid level monitoring unit; the gas concentration monitoring unit includes a hydrogen sulfide sensor, an oxygen sensor, a carbon monoxide sensor and a methane sensor, which are used to monitor the concentration of harmful gases in the pipeline network; the temperature and liquid level monitoring unit includes a temperature sensor and a liquid level sensor, which are used to monitor the temperature and liquid level conditions in the pipeline network.

[0020] Preferably, the sensor monitoring module is installed on the inner wall of the well using a cross bracket, and the cross bracket is arranged on the anti-fall net.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. The present invention discloses a comprehensive monitoring system for high-risk nodes of underground pipe networks. By setting a displacement sensor switch, the displacement sensor switch is connected to the data acquisition and processing unit in the data terminal processing module. When the intact manhole cover is placed on the shaft and is in a closed state, the data terminal processing modules are in a closed state under the gravity pressure of the manhole cover. At this time, the alarm and emergency response module is in a normal deployment state. When the displacement sensor switch is in a disconnected state, it indicates that there is a missing manhole cover in the shaft. The alarm and emergency response module collects and senses that the manhole cover is abnormally damaged or missing, and immediately triggers the data terminal processing module. The abnormal situation of the manhole cover at the corresponding longitude and latitude position is transmitted to the management and control platform through the data analysis unit and the wireless communication unit. The management and control platform processes and analyzes the received data to timely discover and warn of potential safety hazards. The anti-fall net is used to protect when someone falls due to the missing manhole cover. When the manhole cover is missing, the solar strobe indicator light on the telescopic bracket will automatically light up at night to indicate that it is dangerous and should be kept away.

[0023] 2. The comprehensive monitoring system for high-risk nodes in underground pipelines described in the present invention realizes comprehensive and real-time monitoring of key parameters in underground pipelines by integrating multiple sensors and advanced communication technologies. The system not only improves the accuracy and reliability of monitoring, but also effectively prevents the occurrence of safety hazards such as loss of manhole covers, leakage and water accumulation in pipelines, and accumulation and explosion of gas leaks through intelligent data processing and analysis, thus providing a strong guarantee for the safe and stable operation of urban underground pipelines.

[0024] 3. The comprehensive monitoring system for high-risk nodes of an underground pipeline network described in the present invention receives data from a sensor monitoring module through a data receiving unit, and a collection and processing unit collects data from the data receiving unit. The collection and processing unit is connected to the data collector body in the pipeline network body, and can transmit the monitoring data to the wireless communication unit as soon as possible, and send it to the management and control platform through the wireless communication unit as soon as possible, so as to ensure that the management and control platform understands the data information as soon as possible; wherein the data will also be connected to the positioning information and transmitted to the data analysis unit, and the data analysis unit will send the abnormal data to the wireless communication unit again, and then send the detailed data to the management and control platform again, so as to ensure that the management and control platform understands the abnormal data information as soon as possible; by cleaning, denoising and normalizing the data of the data receiving unit, and then analyzing the data processed by statistics and machine learning algorithms, the patterns and anomalies in the data are found, and the abnormal information is quickly sent out. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] Figure 1 It is a framework diagram of the monitoring system of the present invention;

[0027] Figure 2 It is a framework diagram of a sensor monitoring module in one embodiment of the present invention;

[0028] Figure 3 This is a framework diagram of an alarm and emergency response module in an embodiment of the present invention;

[0029] Figure 4 This is a data acquisition and transmission module framework diagram of an embodiment of the present invention;

[0030] Figure 5 It is a structural schematic diagram of the well in the present invention;

[0031] Figure 6 It is a structural schematic diagram of the anti-falling net in the present invention;

[0032] Figure 7 It is a schematic diagram of the structure of the telescopic track and the telescopic bracket in the present invention;

[0033] In the figure: 1. Hoistway; 2. Anti-fall net; 3. Telescopic rail; 4. Fastening bolts; 5. Fixing nuts; 6. Telescopic bracket; 7. Fixing buckle; 8. Solar flashing indicator light; 9. Data logger body; 10. Battery; 11. Displacement sensor switch; 12. Limit slot. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0035] like Figures 1 to 7 As shown, an integrated monitoring system for high-risk nodes of underground pipe networks according to an embodiment of the present invention includes a sensor monitoring module for monitoring the position status of a manhole cover; a data acquisition and transmission module for receiving a signal detected by the sensor monitoring module and converting the signal into a data signal for transmission to the next module; a data terminal processing module for processing the received data and obtaining the abnormal state of the manhole cover after analysis; an alarm and emergency response module for feeding back abnormal state information to a management and control platform and taking emergency response measures; the sensor monitoring module includes a manhole cover state monitoring unit; the manhole cover state monitoring unit includes a displacement sensor switch 11 for monitoring changes in the position of the manhole cover and converting it into electrical data; one end of the sensor monitoring module is connected to the main body of the pipe network. The main body of the pipe network includes a shaft 1 and an anti-fall net 2, and the outer wall of the anti-fall net 2 is fixedly connected with four telescopic brackets 6 arranged in a circle; four telescopic rails 3 are fixedly connected to the inner wall of the shaft 1 through multiple fixing buckles 7; the telescopic brackets 6 are respectively slidably connected to the telescopic rails 3, and multiple limiting grooves 12 are provided on both sides of the telescopic rails 3, and the limiting grooves 12 are threadedly connected with fastening bolts 4, and are connected to the outer side of the telescopic bracket 6 through fixing nuts 5; the bottom of the anti-fall net 2 is fixedly connected with a data collector body 9 and a battery 10, and the data collector body 9 is electrically connected to the data terminal processing module, and the telescopic brackets 6 are installed with solar flashing indicator lights 8; the displacement sensor switch 11 is installed on one of the telescopic brackets 6 through a torsion spring.

[0036] During operation, the position status of the manhole cover is monitored by the sensor monitoring module; the signal monitored by the sensor monitoring module is received by the data acquisition and transmission module, and the signal is converted into a data signal and transmitted to the data terminal processing module, and the received data is processed by the data terminal processing module, and the abnormal state of the manhole cover is obtained after analysis; finally, the abnormal state information is fed back to the management and control platform through the alarm and emergency response module, and emergency response measures are taken; when the displacement sensor switch 11 provided by the present invention is in use, the displacement sensor switch 11 is connected to the data acquisition and processing unit in the data terminal processing module, and when the intact manhole cover is placed on the shaft 1 in a closed state, the data terminal processing module is under the gravity pressure of the manhole cover. All are in the closed state, at this time the alarm and emergency response module is in the normal deployment state; when the displacement sensor switch 11 is in the disconnected state, it means that there is a missing manhole cover in the well 1. The alarm and emergency response module collects and senses that the manhole cover is abnormally damaged or missing, and immediately triggers the data terminal processing module, and transmits the abnormal situation of the manhole cover at the corresponding longitude and latitude position to the control platform through the data analysis unit and the wireless communication unit. The control platform processes and analyzes the received data, and promptly discovers and warns of potential safety hazards; the anti-fall net 2 is used to protect when someone falls when the manhole cover is missing; when the manhole cover is missing, the solar flashing indicator light 8 on the telescopic bracket 6 will automatically light up at night to indicate that it is dangerous and should be kept away;

[0037] The battery 10 adopts a detachable rechargeable power supply battery 10, and is fixed to the bottom of the anti-fall net 2 with a snap screw; the telescopic bracket 6 performs a telescopic action by sliding on the telescopic rail 3, and the adaptation installation of wells 1 of different diameters is achieved by adjusting the telescopic bracket 6, and the fixing buckle 7 is fixed to the inner wall of the well 1 by an expansion screw. When the length needs to be adjusted, the position of the telescopic bracket 6 on the telescopic rail 3 is adjusted, and then it is tightened by the fixing nut 5 and the fastening bolt 4 to prevent the telescopic bracket 6 from slipping.

[0038] like Figure 1 and Figure 4 As shown, the data acquisition and transmission module includes a data receiving unit, a wireless communication unit and a management and control platform. The data receiving unit is used to receive data from the sensor monitoring module; the input ends of the wireless communication units are connected to the data acquisition device body 9, and the output ends of the wireless communication units are connected to the management and control platform.

[0039] When the data acquisition and transmission module provided by the present invention is in use, the data of the sensor monitoring module is received through the data receiving unit, the acquisition processing unit acquires the data of the data receiving unit, and the acquisition processing unit is connected with the data acquisition device body 9 in the main body of the pipe network, and the monitoring data can be transmitted to the wireless communication unit as soon as possible, and sent to the management and control platform as soon as possible through the wireless communication unit, so as to ensure that the management and control platform understands the data information as soon as possible; wherein the data will also be connected with the positioning information and transmitted to the data analysis unit, and the data analysis unit will send the abnormal data to the wireless communication unit again, and then send the detailed data to the management and control platform again, so as to ensure that the management and control platform understands the abnormal data information as soon as possible.

[0040] like Figure 1 and Figure 4 As shown, the data terminal processing module also includes a data acquisition processing unit, a GPS positioning unit and a data analysis unit. The data acquisition processing unit is used to clean, denoise and normalize the data of the data receiving unit; the GPS positioning unit is used to locate the position coordinates of the shaft 1; the data analysis unit uses statistics and machine learning algorithms to process data, and discovers patterns and anomalies in the data through analysis.

[0041] When in use, the data terminal processing module provided by the present invention cleans, denoises and normalizes the data of the data receiving unit, and then analyzes the data after statistics and machine learning to find out the patterns and anomalies in the data, and quickly sends out the abnormal information; wherein the GPS positioning unit is used to locate the position coordinates of the shaft 1, so that the management and control platform can collect the position of the manhole cover, and transmit the information to the maintenance personnel, so that the maintenance personnel can quickly lock the position and go for maintenance; in addition, the GPS positioning information is transmitted to the specific street through the management and control platform, so that the staff can go to check and set up warning signs.

[0042] like Figure 1 As shown, the control platform adopts the NB-IoT module to realize the communication between the data acquisition and transmission module and the data terminal processing module; the output end of the control platform is electrically connected to the alarm and emergency response module.

[0043] When in use, the management and control platform provided by the present invention adopts the NB-IoT module to realize the communication between the data acquisition and transmission module and the data terminal processing module, so as to ensure that the data is transmitted to the management and control platform stably, safely and efficiently; the management and control platform processes and analyzes the received data, and promptly discovers and warns of potential safety hazards.

[0044] like Figure 1 and Figure 3As shown, the alarm and emergency response module includes an alarm prompt unit, which includes a communication alarm unit, a buzzer unit and a warning light unit. The communication alarm unit is connected to the management and control platform to send alarm information to the management and control platform; the buzzer unit and the warning light unit are connected to the management and control platform to prompt the alarm information through buzzing and flashing lights respectively; the communication alarm unit, the buzzer unit and the warning light unit cooperate with each other.

[0045] When the alarm prompt unit provided by the present invention is in use, when the data analysis unit analyzes the data and finds patterns and anomalies in the data, the abnormal information will be quickly sent to the management and control platform in the form of text messages at the first time, and at the same time, the buzzer unit and the warning light unit will prompt the alarm information through buzzing sounds and flashing lights respectively, so that the management and control platform can receive the alarm information at the first time and take corresponding emergency measures.

[0046] like Figure 1 and Figure 3 As shown, the alarm and emergency response module also includes an emergency response unit, which includes an alarm receiving unit, an alarm processing unit and an alarm feedback unit. The input end of the alarm receiving unit is connected to the output end of the data analysis unit, the output end of the alarm receiving unit is connected to the input end of the alarm processing unit, the output end of the alarm processing unit is connected to the input end of the alarm feedback unit, and the output end of the alarm feedback unit is connected to the management and control platform.

[0047] When the alarm and emergency response module provided by the present invention is in use, the alarm receiving unit receives the abnormal information from the data analysis unit, and the alarm receiving unit transmits the abnormal information to the alarm processing unit, which analyzes and evaluates the abnormal information and finally transmits it to the management and control platform through the alarm feedback unit, and judges whether the manhole cover is abnormally damaged, missing or an alarm signal is caused by on-site construction. If it is an alarm signal caused by normal on-site construction, the management and control platform will not take the next step. If it is determined that the manhole cover is abnormally damaged or missing, the management and control platform will give corresponding emergency response measures.

[0048] like Figure 1 and Figure 2 As shown, the sensor monitoring module also includes a gas concentration monitoring unit and a temperature and liquid level monitoring unit; the gas concentration monitoring unit includes a hydrogen sulfide sensor, an oxygen sensor, a carbon monoxide sensor and a methane sensor, which are used to monitor the concentration of harmful gases in the pipeline network; the temperature and liquid level monitoring unit includes a temperature sensor and a liquid level sensor, which are used to monitor the temperature and liquid level conditions in the pipeline network.

[0049] When in use, the gas concentration monitoring unit and the temperature and liquid level monitoring unit provided by the present invention monitor the concentration of harmful gases in the pipeline network in real time by configuring hydrogen sulfide sensors, oxygen sensors, carbon monoxide sensors and methane sensors. When any concentration value of hydrogen sulfide, oxygen, carbon monoxide or methane in the pipeline network is too high, corresponding maintenance measures will be taken through the sensor monitoring module, data acquisition and transmission module, data terminal processing module and alarm and emergency response module to prevent safety accidents such as explosions; by configuring temperature sensors and liquid level sensors, the temperature and liquid level conditions in the pipeline network are monitored to prevent problems such as leakage and water accumulation.

[0050] like Figure 1 and Figure 5 As shown, the sensor monitoring module is installed on the inner wall of the shaft 1 using a cross bracket, and the cross bracket is arranged on the anti-fall net 2.

[0051] When the anti-fall net 2 provided by the present invention is in use, multiple sensors are installed on the well wall using a cross-structure bracket. The bracket has strong fixing support and can withstand a static gravity of 150 kg to ensure stable operation of the sensor. The cross-structure bracket is integrated with the anti-fall net 2 to prevent passers-by from accidentally falling into the well 1 when the well cover is damaged or missing.

[0052] Working principle: by setting the displacement sensor switch 11, the displacement sensor switch 11 is connected to the data acquisition processing unit in the data terminal processing module. When the intact manhole cover is placed on the shaft 1 and is in a closed state, the data terminal processing modules are in a closed state under the gravity pressure of the manhole cover. At this time, the alarm and emergency response module is in a normal deployment state; when the displacement sensor switch 11 is in a disconnected state, it means that there is a missing manhole cover in the shaft 1. The alarm and emergency response module collects and senses that the manhole cover is abnormally damaged or missing, and immediately triggers the data terminal processing module. The abnormal situation of the manhole cover at the corresponding longitude and latitude position is transmitted to the management and control platform through the data analysis unit and the wireless communication unit. The management and control platform processes and analyzes the received data to timely discover and warn of potential safety hazards; the anti-fall net 2 is used to protect when someone falls when the manhole cover is missing; when the manhole cover is missing, the solar flashing indicator light 8 on the telescopic bracket 6 will automatically light up at night to indicate that it is dangerous and should be kept away;

[0053] By configuring hydrogen sulfide sensors, oxygen sensors, carbon monoxide sensors and methane sensors, the concentration of harmful gases in the pipeline network is monitored in real time. When the concentration of hydrogen sulfide, oxygen, carbon monoxide or methane in the pipeline network is too high, the sensor monitoring module, data acquisition and transmission module, data terminal processing module and alarm and emergency response module will be used to take corresponding maintenance measures to prevent safety accidents such as explosions; by configuring temperature sensors and liquid level sensors, the temperature and liquid level in the pipeline network are monitored to prevent problems such as leakage and water accumulation;

[0054] The data of the sensor monitoring module is received by the data receiving unit, and the data of the data receiving unit is collected by the collection and processing unit. The collection and processing unit is connected with the data collector body 9 in the main body of the pipe network, and the monitoring data can be transmitted to the wireless communication unit at the first time, and sent to the management and control platform at the first time through the wireless communication unit, so as to ensure that the management and control platform understands the data information at the first time; wherein the data will also be connected to the positioning information and transmitted to the data analysis unit, and the data analysis unit will send the abnormal data to the wireless communication unit again, and then send the fine data to the management and control platform again, so as to ensure that the management and control platform understands the abnormal data information at the first time; by cleaning, denoising and normalizing the data of the data receiving unit, and then using statistics and machine learning to analyze the data, find the rules and anomalies in the data, and quickly send out the abnormal information; wherein the GPS positioning unit is used to locate the position coordinates of the well 1, so that the management and control platform can collect the manhole cover position, and transmit the information to the maintenance personnel, so that the maintenance personnel can quickly lock the position and go for maintenance; in addition, the GPS positioning information is transmitted to the specific street through the management and control platform, so that the staff can go to check and set up warning signs;

[0055] When the data analysis unit analyzes the data and finds patterns and anomalies in the data, it will immediately send an alarm message to the management and control platform in the form of a text message for the abnormal information. At the same time, the buzzer unit and the warning light unit will prompt the alarm information through buzzing sound and flashing light respectively, so that the management and control platform can receive the alarm information in the first time and take corresponding emergency measures. The alarm receiving unit receives the abnormal information from the data analysis unit, and the alarm receiving unit transmits the abnormal information to the alarm processing unit. The alarm processing unit analyzes and evaluates the abnormal information and finally transmits it to the management and control platform through the alarm feedback unit. It judges whether the manhole cover is abnormally damaged, missing or caused by on-site construction. If it is an alarm signal caused by normal on-site construction, the management and control platform will not take the next step. If it is determined that the manhole cover is abnormally damaged or missing, the management and control platform will give corresponding emergency response measures.

[0056] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of 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. A comprehensive monitoring system for high-risk nodes of underground pipe networks, comprising: A sensor monitoring module is used to monitor the position status of the manhole cover; The data acquisition and transmission module is used to receive the signal monitored by the sensor monitoring module and convert the signal into a data signal to be transmitted to the next module; The data terminal processing module is used to process the received data and obtain the abnormal status of the manhole cover through analysis; The alarm and emergency response module is used to feed back abnormal status information to the management and control platform and take emergency response measures; The invention is characterized in that: the sensor monitoring module comprises a manhole cover status monitoring unit; the manhole cover status monitoring unit comprises a displacement sensor switch (11) for monitoring the change of the manhole cover position and converting it into electrical data; One end of the sensor monitoring module is connected to the pipe network body; the pipe network body comprises a well (1) and an anti-fall net (2); the outer wall of the anti-fall net (2) is circumferentially arranged and fixedly connected with four telescopic brackets (6); the inner wall of the well (1) is fixedly connected with four telescopic rails (3) through a plurality of fixing buckles (7); the telescopic brackets (6) are respectively slidably connected to the telescopic rails (3); a plurality of limiting grooves (12) are provided on both sides of the telescopic rails (3); the limiting grooves (12) are threadedly connected with fastening bolts (4) and are connected to the outer side of the telescopic brackets (6) through fixing nuts (5); the bottom of the anti-fall net (2) is fixedly connected with a data acquisition device body (9) and a battery (10); the data acquisition device body (9) is electrically connected to a data terminal processing module; the telescopic brackets (6) are each installed with a solar flash indicator light (8); the displacement sensor switch (11) is installed on one of the telescopic brackets (6) through a torsion spring.

2. According to claim 1, a comprehensive monitoring system for high-risk nodes of underground pipe networks is characterized by: The data acquisition and transmission module comprises a data receiving unit, a wireless communication unit and a control platform. The data receiving unit is used to receive data from the sensor monitoring module. The input end of the wireless communication unit is connected to the data acquisition device body (9), and the output end of the wireless communication unit is connected to the control platform.

3. The high-risk node comprehensive monitoring system for underground pipe network according to claim 2 is characterized by: The data terminal processing module comprises a data acquisition processing unit, a GPS positioning unit and a data analysis unit. The data acquisition processing unit is used to clean, denoise and normalize the data received by the data receiving unit; the GPS positioning unit is used to locate the position coordinates of the shaft (1); and the data analysis unit uses statistics and machine learning algorithms to process data and discover patterns and anomalies in the data through analysis.

4. The high-risk node comprehensive monitoring system for underground pipe network according to claim 3 is characterized by: The control platform adopts the NB-IoT module to realize the communication between the data acquisition and transmission module and the data terminal processing module; the output end of the control platform is electrically connected to the alarm and emergency response module.

5. The high-risk node comprehensive monitoring system for underground pipe network according to claim 4 is characterized by: The alarm and emergency response module includes an alarm prompt unit, which includes a communication alarm unit, a buzzer unit and a warning light unit. The communication alarm unit is connected to the management and control platform and is used to send alarm information to the management and control platform; the buzzer unit and the warning light unit are connected to the management and control platform and prompt the alarm information through buzzing and flashing lights respectively; the communication alarm unit, the buzzer unit and the warning light unit cooperate with each other.

6. The high-risk node comprehensive monitoring system for underground pipe network according to claim 5, characterized in that: The alarm and emergency response module also includes an emergency response unit, which includes an alarm receiving unit, an alarm processing unit and an alarm feedback unit. The input end of the alarm receiving unit is connected to the output end of the data analysis unit, the output end of the alarm receiving unit is connected to the input end of the alarm processing unit, the output end of the alarm processing unit is connected to the input end of the alarm feedback unit, and the output end of the alarm feedback unit is connected to the management and control platform.

7. The underground pipe network high-risk node comprehensive monitoring system according to claim 6, characterized in that: The sensor monitoring module also includes a gas concentration monitoring unit and a temperature and liquid level monitoring unit; the gas concentration monitoring unit includes a hydrogen sulfide sensor, an oxygen sensor, a carbon monoxide sensor and a methane sensor, which are used to monitor the concentration of harmful gases in the pipeline network; the temperature and liquid level monitoring unit includes a temperature sensor and a liquid level sensor, which are used to monitor the temperature and liquid level conditions in the pipeline network.

8. The high-risk node comprehensive monitoring system for underground pipe network according to claim 7, characterized in that: The sensor monitoring module is installed on the inner wall of the well (1) by using a cross bracket, and the cross brackets are all arranged on the anti-fall net (2).

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