An underground pipe gallery water collecting well wireless intelligent monitoring system

Abstract

This invention discloses a wireless intelligent monitoring system for underground utility tunnel sump wells, belonging to the field of intelligent safety production. The system employs an integrated intelligent sensor and controller with "sensing-analysis-assessment-decision-execution-data identification-wireless transmission" as a ubiquitous sensing and distributed control intelligent equipment. It senses the water level in the utility tunnel sump well and the surrounding environmental risks in real time, analyzes and assesses whether the monitored parameter values ​​exceed limits, and immediately activates the actuator to eliminate the risk if limits are exceeded. Using cascaded wireless data acquisition and forwarding intelligent devices to reduce redundant data transmission as transmission nodes, it sends real-time underground utility tunnel safety production status data to the cloud platform for safety risk prediction and prevention management. The intelligent sensor and controller are numerous and widely distributed, and the low-power wireless data transmission is energy-efficient. The wireless data acquisition and forwarding intelligent devices, through cascaded acquisition and control of intelligent sensor and controller scenarios, enable green, low-carbon, and digital safety production monitoring.

Description

Technical Field

[0001] This invention belongs to the field of intelligent safety production, and more specifically, relates to a wireless intelligent monitoring system for underground utility tunnel water collection wells. Background Technology

[0002] Underground utility tunnels face risks of water accumulation and the accumulation of hazardous gases, which could lead to flooding, fires, explosions, poisoning, and asphyxiation, endangering urban operational safety and social harmony and stability. Strengthening the prevention and control of safety risks and hidden dangers in underground utility tunnels has significant socio-economic implications.

[0003] The operation and shutdown of drainage pumps in underground utility tunnel sump pits involve multiple factors, including hazardous gases present in the tunnel environment, water levels in the sump pits, and the pump's operational status. To ensure safe production, companies typically rely on manual inspections of sump pit water levels and pump status. This increases the risk of gas hazards and drowning for inspection personnel. To facilitate seepage collection, multiple sump pits are often installed within the utility tunnel, spreading out along its length. The longer the tunnel, the more sump pits are needed, making digital monitoring of sump pit water levels challenging. Summary of the Invention

[0004] To address the aforementioned deficiencies or improvement needs of existing technologies, this invention provides a wireless intelligent monitoring system for underground utility tunnel water collection wells. Through the Internet of Things, sensor networks, and controllers, it enables distributed management and control of multi-source risks within the scenario. By collaboratively sensing, real-time fusion analysis, decision-making, execution, data identification, and wireless transmission of identified data from multiple sources and types of risk factors, it achieves intelligent and digitalized safe production in utility tunnels.

[0005] To achieve the above objectives, according to a first aspect of the present invention, a wireless intelligent monitoring system for underground utility tunnel water collection wells is provided. The underground utility tunnel is equipped with N water collection wells. The system includes N intelligent sensors, M wireless data acquisition and forwarding devices, a data aggregation and forwarding device, a wireless router, and an intelligent cloud platform. The N intelligent sensors are deployed one-to-one with the N water collection wells in the underground pipe gallery. They are used to collect the water level and ambient gas concentration of the water collection wells in real time, and automatically adjust them when the water level or ambient gas concentration exceeds the corresponding threshold to ensure that it returns to the corresponding threshold range. The ambient gas is a combustible gas. The N intelligent sensors are sequentially divided into M intelligent sensor groups along their arrangement direction. T m A wireless data acquisition and relay device is used to collect monitoring data from the m-th intelligent sensor group, and the T-th... m-1 The data sent by the wireless data acquisition and forwarding device is forwarded to the Tth wireless data acquisition and forwarding device. m+1A wireless data acquisition and forwarding device; wherein, the wireless data acquisition and forwarding device is numbered as follows: the module farthest from the entrance / exit of the underground utility tunnel is designated as T1, and starting from this module, along the direction approaching the entrance / exit, the remaining modules are sequentially numbered T2, T3, ..., T... M ; The data collection and forwarding device is installed at the entrance and exit sides of the underground utility tunnel to receive the Tth data. M The data is sent by a wireless data acquisition and forwarding device and forwarded to a wireless router, which then uploads it to the intelligent cloud platform.

[0006] In summary, compared with the prior art, the above-described technical solutions conceived by this invention can achieve the following beneficial effects: The wireless intelligent monitoring system for underground utility tunnel sump wells provided by this invention includes intelligent sensors, wireless data acquisition and forwarding devices, data aggregation and forwarding devices, wireless routers, and an intelligent cloud platform. The intelligent sensors adopt an integrated mode of multi-factor collaborative perception, real-time analysis, evaluation, decision-making, execution, data identification, and transmission of perceived data. It can perceive the status of the sump well in real time and collaboratively perceive risk factors affecting the operation of the sump well drainage pump. Under the condition that the risk factors are controlled, it can make front-end decisions and distributed control when the sump well water level exceeds the limit. The intelligent sensors are numerous and widely distributed, and transmit data wirelessly with low power, which is conducive to energy saving. The wireless data acquisition and forwarding intelligent device transmits data through cascaded acquisition and control of intelligent sensors in the scenario, which can reduce data duplication and ensure reliable data forwarding, thereby realizing the greening, low-carbonization, and digitalization of safety production monitoring. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the structure of the wireless intelligent monitoring system for underground utility tunnel water collection wells provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the intelligent sensor provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the wireless data acquisition and forwarding intelligent device provided in an embodiment of the present invention; Figure 4 A hierarchical diagram of the wireless intelligent monitoring system for underground utility tunnel water collection wells provided in an embodiment of the present invention; Figure 5 This is an equipment layout diagram of a wireless intelligent monitoring system for a water collection well in an underground utility tunnel, provided in an embodiment of the present invention. Detailed Implementation

[0008] In order to make the objectives, technical solutions and advantages of the present invention more clear and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0009] Aiming at the water damage risks brought by the seepage of surrounding rock water in the underground pipe gallery, the seepage of surface rainwater, and the leakage of the water supply and drainage pipe network, as well as the explosion risk brought by the combustible gas rich in the pipe gallery environment, the embodiment of the present invention provides a wireless intelligent monitoring system for the sump in the underground pipe gallery, as Figure 1 shown, including end-layer devices---N intelligent sensors, side-layer devices---M wireless data acquisition and forwarding devices, data aggregation and forwarding devices, and wireless routers, cloud-layer devices---intelligent cloud platforms: N>0, M>0, N>M; The N intelligent sensors are respectively arranged in the N sumps of the underground pipe gallery, and are used to collect the water level and environmental gas concentration of the sumps in real time, and automatically adjust when the water level or environmental gas concentration exceeds the corresponding threshold to ensure that it is restored within the corresponding threshold range; the environmental gas is combustible gas; the N intelligent sensors are sequentially divided into M intelligent sensor groups along their arrangement direction; The T m th wireless data acquisition and forwarding device is used to collect the monitoring data of the mth intelligent sensor group, as well as the data sent by the T m-1 th wireless data acquisition and forwarding device, and forward the above data to the T m+1 th wireless data acquisition and forwarding device; wherein, the numbering method of the wireless data acquisition and forwarding device is: define the serial number of the module farthest from the entrance and exit of the underground pipe gallery (by default, the underground pipe gallery has only one entrance and exit) as T1, starting from this module, along the direction approaching the entrance and exit, the serial numbers of the remaining modules are sequentially taken as T2, T3,..., T M ; m = 1, 2,..., M; that is, the closer to the entrance and exit of the underground pipe gallery, the larger the device number of the wireless data acquisition and forwarding device; to ensure green and intelligent, usually M < N, that is, one wireless data acquisition and forwarding intelligent device collects the monitoring data wirelessly sent by multiple intelligent sensors.

[0010] The data aggregation and forwarding device is arranged on the side of the entrance and exit of the underground pipe gallery, and is used to receive the data sent by the T M th wireless data acquisition and forwarding device and forward it to the wireless router, and the wireless router uploads it to the intelligent cloud platform.

[0011] The intelligent sensor is used to sense the water level in the collection well, the concentration of ambient gas in the collection well, and the working status of the water pump. When the water level or ambient gas concentration is abnormal, the actuator is activated in real time to eliminate the risk, and the real-time monitoring data is wirelessly transmitted after being identified.

[0012] The intelligent sensor includes a sensing module, a controller, a driver, an actuator, a wireless transmission module, a data identification module, and a wireless transmission module. The sensing module is used to sense the water level of the collection well, the concentration of ambient gas, and the operating status of the drainage pump in real time. The actuator includes an exhaust fan and a drainage pump. The controller is used to drive the exhaust fan through a driver to ventilate the pipe gallery when the ambient gas concentration in the collection well exceeds the concentration threshold, thereby reducing the risk of fire caused by the accumulation of combustible gases. When the water level in the collection well exceeds the water level threshold, the controller determines whether the ambient gas concentration in the collection well exceeds the concentration threshold. If so, the controller first drives the exhaust fan through a driver to ventilate, and then, in conjunction with the operating status of the drainage pump, drives the drainage pump through a driver to discharge the water accumulated in the collection well. Otherwise, the controller directly drives the drainage pump through a driver to discharge the water accumulated in the collection well (for example, if the drainage pump is on at this time, the driver does not need to operate). The wireless transmission module is used to broadcast the water level of the collection well and the ambient gas concentration to the outside.

[0013] The water level sensing element of the water collection well can be a high-precision pull-wire displacement meter, laser displacement meter, or liquid level meter to measure the water level, or it can be a float switch sensor. When the water level exceeds the preset height, the float floats up and the switch logic value changes.

[0014] The sensing element for combustible gases in the environment surrounding the water collection well is a semiconductor gas sensor.

[0015] The driver can be a relay or a thyristor. For drainage pumps and exhaust fans with a power of less than 1kW and a 220V rating, a relay can be used as the driver; for three-phase motors and high-power motors, a thyristor device should be used as the driver.

[0016] Preferably, the intelligent sensor is also used to issue an early warning when the water level in the collection well or the concentration of ambient gas exceeds a corresponding threshold.

[0017] Preferably, after the intelligent sensor collects the water level and ambient gas concentration of the collection well, it also adds a data identifier to it; the data identifier includes the device number and parameter code of the intelligent sensor (for example: water level data is 01, ambient gas concentration is 02); that is, the data format of the collection well status safety risk monitoring is: collection well status intelligent sensor code + parameter code + parameter real-time status value.

[0018] The intelligent sensors are numbered as follows: the module furthest from the entrance / exit of the underground utility tunnel is designated as Sc1. Starting from this module, the remaining modules are numbered sequentially as Sc2, Sc3, ..., Sc1 along the direction approaching the entrance / exit. N .

[0019] The N intelligent sensors are sequentially divided into M intelligent sensor groups along their arrangement direction. It can be understood that the division method is based on satisfying the wireless transmission distance of the wireless data acquisition and forwarding device, that is, ensuring that the Tth... m A wireless data acquisition and relay device can collect monitoring data from each smart sensor in the m-th smart sensor group.

[0020] Preferably, the Tth m A wireless data acquisition and forwarding device includes a wireless transceiver module and a controller; the controller embeds a data acquisition and forwarding model to characterize the Tth... m A wireless data acquisition and forwarding device and each intelligent sensor in the m-th intelligent sensor group, and the T-th... m-1 One wireless data acquisition and forwarding device and the Tth m+1 The mapping relationship between the device number of each wireless data acquisition and forwarding device and the data transmission direction.

[0021] Specifically, the wireless data acquisition and forwarding device collects in real time the tagged data wirelessly transmitted by each intelligent sensor in the corresponding intelligent sensor group, as well as the data transmitted by the adjacent previous wireless data acquisition and forwarding device, and forwards the above data to the next adjacent wireless data acquisition and forwarding device. Adjacent wireless data acquisition and forwarding intelligent devices form a cascade relationship, and the cascade relationship model is embedded in the control module of the wireless data acquisition and forwarding intelligent device. Through cascading, the wireless data acquisition and forwarding intelligent devices can realize the T... m Collect monitoring data wirelessly transmitted by each smart sensor in the m-th smart sensor group and the T-th smart sensor group. m-1 The wireless data acquisition and forwarding intelligent devices forward the monitoring data wirelessly transmitted by the underlying intelligent sensors and controllers, and jointly forward them to the Tth... m-1 A wireless data acquisition and forwarding device can effectively avoid unnecessary data duplication and redundancy, and realize green, low-carbon and digital data acquisition.

[0022] Preferably, as shown in the figure, the Tth m Each data acquisition and forwarding device also includes a function selection key, used by the user to input the information of each intelligent sensor in the m-th intelligent sensor group, and the T-th intelligent sensor group. m-1 A data acquisition and forwarding device (i.e.) Figure 5 (lower-level machine in the middle) and the Tth m+1 A data acquisition and forwarding device (i.e.) Figure 5 The device number of the host computer in the system.

[0023] Preferably, the intelligent cloud platform is used to analyze and process the received monitoring data in order to manage the safety risks of underground utility tunnels.

[0024] Specifically, the intelligent cloud platform performs big data analysis on the received monitoring data to formulate safety risk response strategies for underground utility tunnels. It uses the water level in the tunnel's sump pits for predictive and preventative management, achieving digital management of safety risks associated with these pits. For example, if big data trends and weather forecasts predict that the water level in the sump pits is about to exceed a threshold, drainage pumps can be activated in advance to mitigate the risk. Any existing prediction method can be used for this purpose.

[0025] The system provided by the present invention will be further illustrated below with a specific example.

[0026] Taking an underground utility tunnel as an example, the tunnel's exit section is 150 meters long and contains two water collection wells; the right-angle bend section is 100 meters long and has no water collection wells; the innermost section is 450 meters long and has four water collection wells evenly distributed throughout, for a total of six water collection wells. Figure 5 As shown.

[0027] The utility tunnel provides protection for large transportation hubs, housing water supply, drainage, heating, cooling, and power lines. Analysis shows that common risk factors in underground utility tunnels include toxic and harmful gases, rainwater, and pipe network seepage. Disasters caused by these factors can disrupt the operation and maintenance of the transportation hubs, while the accumulation of toxic and harmful gases poses a threat to the lives of inspection personnel. To mitigate these risks, the underground utility tunnel at this large transportation hub has undergone intelligent and digital upgrades, automatically monitoring water levels in collection wells and the risk of toxic and harmful gases, with immediate control measures in place for exceeding limits. The end-level intelligent sensor controller uses high-precision laser displacement gauges to monitor water levels and semiconductor sensors for carbon monoxide, hydrogen sulfide, and combustible gases to monitor gas concentrations. Once limits are exceeded, real-time warnings are issued, and exhaust fans are activated for ventilation, and drainage pumps are used for drainage. This distributed control approach, which uses risk perception to control, not only eliminates the control delays associated with traditional sensing-transmission-application methods but also eliminates cybersecurity risks.

[0028] To achieve distributed control, an integrated intelligent sensor controller, encompassing sensing, analysis, evaluation, execution, and data identification transmission, is deployed at all water collection well points. Data acquisition and transmission utilizes a cascaded wireless data acquisition and forwarding intelligent device to eliminate redundant data transmission. This device is deployed in the middle of the pipe gallery section, at both ends of the right-angle section in the middle of the pipe gallery, and at the pipe gallery entrance. The wireless data acquisition and forwarding intelligent device at the pipe gallery entrance is directly connected to a wireless router, transmitting identification data to the cloud platform in real time.

[0029] Starting from the innermost water collection well, the coded intelligent sensors are Sc1, Sc2, ..., Sc6; the coded wireless data acquisition and forwarding intelligent devices are T1, T2, T3, T4.

[0030] The cascading rules for the wireless data acquisition and forwarding intelligent devices are as follows: T1 collects wireless data transmitted by intelligent sensors Sc1 and Sc2 in this area and forwards it to T2; T2 collects wireless data transmitted by intelligent sensors Sc3 and Sc4 in this area and the sensing data of intelligent sensors Sc1 and Sc2 forwarded by T1; T3 collects wireless data transmitted by intelligent sensor Sc5 in this area and the sensing data of intelligent sensors Sc1, Sc2, Sc3, and Sc4 forwarded by T2; T4 collects wireless data transmitted by intelligent sensor Sc6 in this area and the sensing data of intelligent sensors Sc1, Sc2, Sc3, Sc4, and Sc5 forwarded by T3. The data aggregation module TZ receives the data forwarded by T4 and sends it to the 4G / 5G wireless mobile router via wired or wireless transmission. The 4G / 5G wireless mobile router then sends it to the cloud platform. The cloud platform listens to the transmitted data and uses big data analysis to predict and prevent safety risks in the pipe gallery's water collection well.

[0031] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A wireless intelligent monitoring system for underground utility tunnel water collection wells, wherein the underground utility tunnel is equipped with N water collection wells, characterized in that, The system includes N intelligent sensors, M wireless data acquisition and forwarding devices, a data aggregation and forwarding device, a wireless router, and an intelligent cloud platform. The N intelligent sensors are deployed one-to-one with the N water collection wells in the underground pipe gallery. They are used to collect the water level and ambient gas concentration of the water collection wells in real time, and automatically adjust them when the water level or ambient gas concentration exceeds the corresponding threshold to ensure that it returns to the corresponding threshold range. The ambient gas is a combustible gas. The N intelligent sensors are sequentially divided into M intelligent sensor groups along their arrangement direction. T m A wireless data acquisition and relay device is used to collect monitoring data from the m-th intelligent sensor group, and the T-th... m-1 The data sent by the wireless data acquisition and forwarding device is forwarded to the Tth wireless data acquisition and forwarding device. m+1 A wireless data acquisition and forwarding device; wherein, the wireless data acquisition and forwarding device is numbered as follows: the module farthest from the entrance / exit of the underground utility tunnel is designated as T1, and starting from this module, along the direction approaching the entrance / exit, the remaining modules are sequentially numbered T2, T3, ..., T... M ; The data collection and forwarding device is installed at the entrance and exit sides of the underground utility tunnel to receive the Tth data. M The data is sent by a wireless data acquisition and forwarding device and forwarded to a wireless router, which then uploads it to the intelligent cloud platform.

2. The system as described in claim 1, characterized in that, The intelligent sensor includes a sensing module, a controller, a driver, an actuator, a wireless transmission module, a data identification module, and a wireless transmission module. The sensing module is used to sense the water level of the collection well, the concentration of ambient gas, and the operating status of the drainage pump in real time. The actuator includes an exhaust fan and a drainage pump. The controller is used to drive the exhaust fan to ventilate when the concentration of ambient gas in the collection well exceeds a concentration threshold, and to determine whether the concentration of ambient gas in the collection well exceeds a concentration threshold when the water level in the collection well exceeds a water level threshold. If so, the controller first drives the exhaust fan to ventilate, and then drives the drainage pump to discharge the water in the collection well based on the operating status of the drainage pump. Otherwise, the controller directly drives the drainage pump to discharge the water in the collection well based on the operating status of the drainage pump. The wireless transmission module is used to transmit the water level and ambient gas concentration of the collection well to the outside.

3. The apparatus as described in claim 1, characterized in that, The intelligent sensor also includes an early warning unit, which is used to issue an early warning when the water level in the collection well or the concentration of ambient gas exceeds the corresponding threshold.

4. The apparatus as described in claim 1 or 3, characterized in that, The intelligent sensor also includes a data identification unit, which is used to add data identification to the water level and ambient gas concentration of the collection well after they are collected and before they are sent out; the data identification includes the device number and parameter code of the intelligent sensor. The intelligent sensors are numbered as follows: the module furthest from the entrance / exit of the underground utility tunnel is designated as Sc1. Starting from this module, the remaining modules are numbered sequentially as Sc2, Sc3, ..., Sc1 along the direction approaching the entrance / exit. N .

5. The apparatus as claimed in claim 1, characterized in that, T m A wireless data acquisition and forwarding device includes a wireless transceiver module and a controller; the controller embeds a data acquisition and forwarding model to characterize the Tth... m A wireless data acquisition and forwarding device and each intelligent sensor in the m-th intelligent sensor group, and the T-th... m-1 One wireless data acquisition and forwarding device and the Tth m+1 The mapping relationship between the device number of each wireless data acquisition and forwarding device and the data transmission direction.

6. The apparatus as claimed in claim 5, characterized in that, T m Each wireless data acquisition and forwarding device also includes a function selection key, used by the user to input the information of each smart sensor in the m-th smart sensor group, and the T-th smart sensor... m-1 One wireless data acquisition and forwarding device and the Tth m+1 The device number of the wireless data acquisition and forwarding device.

7. The apparatus as claimed in claim 1, characterized in that, The intelligent cloud platform is used to analyze and process the received monitoring data in order to manage the safety risks of underground utility tunnels.

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