Plateau high-altitude railway tunnel air valve intelligent monitoring device

Abstract

The utility model discloses an intelligent air valve monitoring device for a plateau high-altitude railway tunnel. The intelligent air valve monitoring device comprises intelligent air valve monitoring equipment, a displacement sensor, a collapse sensor and a detection target, the intelligent monitoring equipment for the air valve comprises a processor module, a communication module, a power supply module and an information acquisition module, the processor module is respectively connected with the communication module, the power supply module and the information acquisition module; the information acquisition module is connected with the displacement sensor and the collapse sensor; the displacement sensor and the collapse sensor are arranged on one side surface of the air valve; the detection target comprises a displacement detection target and a collapse detection target; wherein the displacement detection target is mounted on the opposite surface of the displacement sensor; the collapse detection target is mounted on an opposite surface of the collapse sensor. According to the device, the operation and maintenance state of the air valve can be monitored in real time through intelligent analysis and judgment, and full-intelligent monitoring management of the air valve in the tunnel is achieved. Scientific rescue planning and task arrangement with clear targets can be helped to be carried out, so that the rescue efficiency and the success rate are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of disaster prevention, evacuation and rescue of railway tunnels, and more specifically, to an intelligent monitoring device for air valves in high-altitude railway tunnels on the plateau. Background Technique

[0002] So far, many tragic accidents of subway and tunnel fires and group deaths and injuries have occurred at home and abroad. Through the observation and analysis of existing railways and highways in China, the occupancy ratio of tunnels has reached a very high level, and the safety role and energy consumption of the ventilation and smoke exhaust systems in tunnels account for a very high proportion.

[0003] During subway and tunnel fires, the effective control of smoke by the ventilation and smoke exhaust systems, timely and effectively controlling the smoke flow, exhausting the smoke, and reducing the influence range of the smoke are important means to prevent major accidents. The purposes to be achieved by smoke exhaust and air supply in fire accidents are to maintain a tolerable environment within a certain period of time, which must be conducive to the escape and refuge of personnel. The magnitude of the wind speed should minimize the heat load transmitted to the human body and avoid the diffusion of smoke on the evacuation route due to the generation of turbulence and eddy currents caused by air make-up, so as to create conditions for personnel refuge to the greatest extent. Avoid and minimize the diffusion of high-temperature gas in the fire field, and discharge the hot smoke generated during the fire process as soon as possible through effective smoke exhaust facilities, prevent the hot air flow from igniting the items around the fire field and expanding the fire field, and facilitate the firefighters to approach the fire field and carry out fire-fighting work.

[0004] As an important part of the tunnel ventilation system, whether the air valve can work normally is closely related to the operating environmental conditions, operating efficiency, and operating safety in the tunnel. With the rapid development of the railway industry and the construction and renovation of long tunnels, the requirements for the management and monitoring of air valve equipment in tunnels are getting higher and higher. In recent years, potential hazards in the operation of existing air valve equipment have gradually emerged, and accidents such as air valve displacement, falling off, and collapse occur from time to time.

[0005] Therefore, how to design an intelligent monitoring device for air valves in high-altitude railway tunnels on the plateau is an urgent problem to be solved by those skilled in the art. Content of the Utility Model

[0006] In view of this, the utility model provides an intelligent monitoring device for air valves in high-altitude railway tunnels on the plateau, which realizes the full-intelligent monitoring and management of air valves in the tunnel. Accordingly, it can help with scientific and targeted rescue planning and task arrangement to improve the rescue efficiency and success rate.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] The utility model provides an intelligent monitoring device for air valves in high-altitude railway tunnels on the plateau, including: an air valve intelligent monitoring device, a displacement sensor, a collapse sensor, and a detection target;

[0009] The intelligent air valve monitoring device includes: a processor module, a communication module, a power supply module, and an information acquisition module;

[0010] The processor module is respectively connected to the communication module, the power supply module, and the information acquisition module; the power supply module is connected to the communication module and the information acquisition module;

[0011] The information acquisition module is connected to a displacement sensor and a collapse sensor; the displacement sensor and the collapse sensor are arranged on one side of the air valve;

[0012] The detection target includes: a displacement detection target and a collapse detection target; wherein, the displacement detection target is installed on the opposite side of the displacement sensor; the collapse detection target is installed on the opposite side of the collapse sensor.

[0013] Among them, the processor module uses a 32-bit MCU for information processing.

[0014] The communication module communicates with a third-party device and adopts the RJ45 form.

[0015] The power supply module supplies power to the processor module, the communication module, and the signal acquisition module, and supports DC20.4 - 26.4V and AC187 - 253V power input.

[0016] The information acquisition module includes: an AD conversion module and a digital quantity acquisition module;

[0017] The AD conversion module is connected to the displacement sensor, and the digital quantity acquisition module is connected to the collapse sensor.

[0018] The displacement sensor uses an ultrasonic sensor, and the interface adopts the 4 - 20ma current mode.

[0019] The collapse sensor adopts the form of a diffuse reflection photoelectric switch.

[0020] The displacement detection target and the collapse detection target adopt a 10cm * 15cm white flame-retardant PVC plastic board.

[0021] Through the above technical solutions, compared with the prior art, the technical solutions of the present utility model have the following beneficial effects:

[0022] This device monitors information such as the displacement and collapse of the air valve through the intelligent air valve monitoring device. Through intelligent analysis and judgment, it can monitor the operation and maintenance status of the air valve in real time, and realize the fully intelligent monitoring and management of the air valve in the tunnel. Based on this, it can help with scientific and targeted rescue planning and task arrangement to improve the rescue efficiency and success rate. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the attached drawings required for the description of the embodiments or the prior art. Obviously, the attached drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other attached drawings can also be obtained according to the provided attached drawings.

[0024] Figure 1 Front view of the intelligent air valve monitoring device provided by the embodiment of the present invention;

[0025] Figure 2 Top view of the intelligent air valve monitoring device provided by the embodiment of the present invention;

[0026] Figure 3 Structural schematic diagram of the intelligent air valve monitoring device provided by the embodiment of the present invention. Specific embodiments

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the attached drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0028] This embodiment provides an intelligent air valve monitoring device for high-altitude railway tunnels, as Figure 1 and Figure 2 shown, including: an intelligent air valve monitoring device 2, a displacement sensor 3, a collapse sensor 4, and a detection target;

[0029] The intelligent air valve monitoring device 2 is installed near the air valve.

[0030] The detection targets are divided into a displacement detection target 5 and a collapse detection target 6, and are made of a 10 cm * 15 cm white flame-retardant PVC plastic board, which is used to improve the detection accuracy of the sensor. The detection targets are all installed on the air valve body and are installed opposite to the sensors. The displacement sensor 3 is installed on the side of the air valve and is installed opposite to the displacement detection target 5. The collapse sensor 4 is installed on the side of the air valve and is installed opposite to the collapse detection target 6.

[0031] After the air valve is installed and fixed, the displacement sensor 3 calculates by receiving the ultrasonic wave reflected by the detection target, and measures the distance between the air valve and the wall 7 as displacement data. During the real-time monitoring process, if the position of the air valve changes slowly, the displacement data will also change. The information acquisition module transmits the displacement data information measured by the displacement sensor 3 to the processor module. The processor compares the change value with the initial value, forms a trend record, and achieves early detection and early warning of the air valve displacement, and processes the air valve failure in advance.

[0032] The collapse sensor 4 irradiates the detection target with a light beam to detect whether an object exists or is out of the effective detection range. After logical judgment, it gives a high level (+24VDC) or a low level (-24VDC), a passive switch quantity continuous signal. Under normal conditions, it outputs a normally open signal. If the position of the air valve changes greatly, or falls off or collapses, the output signal of the collapse sensor 4 becomes a normally closed signal. The signal acquisition module transmits the data to the processor module, and the processor analyzes and processes the collapse data and can transmit it to a third-party device through the communication module.

[0033] As Figure 3 shown, the air valve intelligent monitoring device 2 includes: a processor module, a communication module, a power module and an information acquisition module; the processor module is respectively connected to the communication module, the power module and the information acquisition module; the power module is connected to the communication module and the information acquisition module;

[0034] The information acquisition module is connected to the displacement sensor 3 and the collapse sensor 4;

[0035] The detection target includes: a displacement detection target 5 and a collapse detection target 6; the displacement sensor 3 and the collapse sensor 4 are arranged on the side of the air valve and are relatively installed with the displacement detection target 5 and the collapse detection target 6 respectively.

[0036] The following makes further detailed descriptions for each of the above structures:

[0037] The processor module uses a 32-bit MCU (ESP32) to process and analyze the collected air valve displacement and collapse data.

[0038] The communication module adopts the RJ45 form for communication with third-party devices and supports MQTT, FTP and Modbus TCP communication protocols.

[0039] The power module supplies power to the processor module, the communication module and the signal acquisition module, and supports DC20.4~26.4V and AC187~253V power input.

[0040] The information acquisition module includes: an AD conversion module and a digital quantity acquisition module; the AD conversion module uses a 24-bit (AD7606) to convert analog signals into digital signals and acquire the displacement data information of the air valve; the digital quantity acquisition module is used to acquire the collapse data.

[0041] The displacement sensor 3 uses an ultrasonic type sensor (12GM55) to measure the distance data information between the air valve and the wall 7. The ultrasonic sensor emits ultrasonic signals in the direction of the displacement detection target 5, and starts timing at the same time when the ultrasonic wave is emitted. The ultrasonic wave propagates through the air and will be immediately reflected and propagated back when it encounters the displacement detection target 5 on the way. The ultrasonic sensor stops timing when it receives the return wave. The propagation speed of the ultrasonic wave in the air is 340 m / s. By recording the time t with the timer, the distance length (s) from the emission point to the obstacle can be calculated, that is: s = 340t. The information output interface of the displacement sensor 3 adopts a 4-20 mA current mode and is transmitted to the processor module through the information acquisition module. The processor module analyzes and discriminates the change of the displacement data, and plays a role in early detection and early warning of the air valve displacement phenomenon.

[0042] The collapse sensor 4 adopts a diffuse reflection photoelectric switch form (CDD-11N). During use, the light source component of the diffuse reflection photoelectric switch sensor emits light signals towards the collapse detection target 6. The light signals are immediately reflected and propagated back when they encounter the collapse detection target 6. The photosensitive element of the photoelectric switch can receive the reflected light signals of the collapse detection target 6, and judges whether the collapse detection target 6 is within the detection range according to the strength change of the reflected light signals. The signal output of the collapse sensor 4 adopts a digital quantity signal and is transmitted to the processor module through the information acquisition module. The processor module identifies and judges the collapse signal and gives a real-time alarm for potential hazards such as the air valve falling off and collapsing.

[0043] The air valve intelligent monitoring device in this embodiment monitors the displacement or collapse state of the air valve to meet the requirements of intelligent, information-based and full-time monitoring of the air valve state. It plays a role in early warning and real-time alarm for potential hazards such as the possible displacement or collapse of the air valve in the tunnel, so as to achieve the purpose of improving driving safety. The utility model adopts industrial-grade accessories, is easy to install, and operates stably and reliably, meeting the specification requirements for air valve monitoring in the tunnel. It has a significant effect on improving the operation and maintenance mode and enhancing the operation safety of the air valve, and is a highly efficient device that successfully solves the problem of air valve monitoring.

[0044] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other. For the system disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method part.

[0045] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An intelligent monitoring device for air valves in high-altitude railway tunnels, characterized in that, Including: An intelligent air valve monitoring device, a displacement sensor, a collapse sensor, and a detection target; The intelligent air valve monitoring device includes: a processor module, a communication module, a power supply module, and an information acquisition module; The processor module is respectively connected to the communication module, the power supply module, and the information acquisition module; the power supply module is connected to the communication module and the information acquisition module; The information acquisition module is connected to the displacement sensor and the collapse sensor; the displacement sensor and the collapse sensor are arranged on one side of the air valve; The detection target includes: a displacement detection target and a collapse detection target; wherein, the displacement detection target is installed on the opposite side of the displacement sensor; the collapse detection target is installed on the opposite side of the collapse sensor.

2. The intelligent monitoring device for a plateau and high altitude railway tunnel air valve according to claim 1, wherein, The processor module uses a 32-bit MCU for information processing.

3. An intelligent monitoring device for a high-altitude railway tunnel air valve according to claim 1, characterized in that, The communication module communicates with a third-party device in the form of RJ45.

4. An intelligent monitoring device for a plateau and high-altitude railway tunnel air valve according to claim 1, characterized in that, The power supply module supplies power to the processor module, the communication module, and the signal acquisition module, and supports DC20.4 - 26.4V and AC187 - 253V power input.

5. The intelligent monitoring device for the air valve of a high - altitude railway tunnel according to claim 1, wherein, The information acquisition module includes: an AD conversion module and a digital quantity acquisition module; The AD conversion module is connected to the displacement sensor, and the digital quantity acquisition module is connected to the collapse sensor.

6. The intelligent monitoring device for the air valve of a high - altitude railway tunnel according to claim 1, wherein, The displacement sensor uses an ultrasonic sensor, and the interface uses a 4 - 20ma current mode.

7. An intelligent monitoring device for a plateau and high-altitude railway tunnel air valve according to claim 1, characterized in that The collapse sensor uses a diffuse reflection photoelectric switch form.

8. An intelligent monitoring device for a plateau and high-altitude railway tunnel air valve according to claim 1, characterized in that The displacement detection target and the collapse detection target use a 10cm * 15cm white flame-retardant PVC plastic board.

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