An online monitoring system for confined space operations

Abstract

This utility model discloses an online monitoring system for confined space operations, including a confined mine shaft, a command center, and a control terminal. The confined mine shaft is equipped with ventilation ducts and multiple integrated detection devices, a wireless broadband self-organizing network, and ventilation openings. Negative pressure fans are installed at the air outlets of the ventilation ducts. Multiple wireless broadband self-organizing networks form a mesh network controlled by the command center. The integrated detection devices are wirelessly connected to the wireless broadband self-organizing network. The command center receives and transmits signals from the integrated detection devices through the mesh network. This online monitoring system for confined space operations achieves wireless transmission by establishing a mesh network controlled by the command center through multiple wireless broadband self-organizing networks. It controls the opening of electric air valves at each ventilation opening by controlling the composition of the circulating airflow, promoting circulation in zones to expel hazardous gases, and treating common flammable and toxic gases.

Description

Technical Field

[0001] This utility model relates to the field of environmental monitoring equipment technology, specifically an online monitoring system for confined space operations. Background Technology

[0002] Environmental monitoring equipment is an instrument used to monitor and analyze the environmental quality. It includes atmospheric environmental monitoring equipment, water environmental monitoring equipment, and soil environmental monitoring equipment.

[0003] Environmental monitoring equipment has many improvement needs in application scenarios, especially in confined space operations such as mines, tunnels, and underground wells. In these scenarios, environmental monitoring equipment transmits data via cables. While cable data transmission is stable, it requires maintenance, upkeep, and installation. Furthermore, confined spaces often contain flammable and harmful gases, making it impossible to process the monitoring data. The system is not perfect, including ventilation and circulation. Therefore, technical improvements are needed to the existing monitoring system technology of environmental monitoring equipment. Utility Model Content

[0004] The purpose of this invention is to provide an online monitoring system for confined space operations to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A confined space operation online monitoring system includes a confined mine shaft, a command post, and a control terminal. The confined mine shaft is equipped with ventilation ducts, multiple integrated detection devices, a wireless broadband self-organizing network, and ventilation openings. Negative pressure fan units are installed at the air outlets of the ventilation ducts. The multiple wireless broadband self-organizing networks form a mesh network controlled by the command post. The integrated detection devices are wirelessly connected to the wireless broadband self-organizing network. The command post receives and transmits signals from the integrated detection devices through the mesh network built by the wireless broadband self-organizing network.

[0007] As a further improvement of this utility model: the negative pressure fan unit sends airflow from the ventilation duct into the detection chamber, the detection chamber is equipped with an electrochemical oxygen sensor, and the control terminal controls the air supply volume of the negative pressure fan unit through the detection data of the electrochemical oxygen sensor.

[0008] As a further improvement of this utility model, the integrated detection device integrates multiple functional modules, including gas detection, data processing, alarm prompting, wireless communication, and camera functions.

[0009] As a further improvement of this utility model: an electric air valve is provided on the vent, and the control console controls the opening degree of the vent and the operating power of the negative pressure fan unit through gas detection data from the integrated detection device.

[0010] As a further improvement of this utility model: the output end of the detection chamber is equipped with an venting pipeline and a combustible gas pipeline through a three-way valve, an absorption tank is set on one side of the confined mine tunnel, and an aeration device is installed at the bottom of the absorption tank. The combustible gas pipeline is evenly distributed into the absorption tank through the aeration device.

[0011] As a further improvement of this utility model: the top of the absorption tank is provided with a top cover for sealing, and the top cover is connected to the combustion pipeline and connected to the burner.

[0012] As a further improvement of this utility model, a combustible gas fan is installed on the combustion pipeline.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This confined space operation online monitoring system establishes a mesh network controlled by a command center through multiple wireless broadband self-organizing networks to achieve wireless transmission. It controls the opening of electric air valves at each ventilation opening by circulating airflow components, promotes circulation in zones to expel hazardous gases, and treats common flammable and toxic gases. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of an online monitoring system for confined space operations.

[0016] In the diagram: 1. Confined mine shaft; 2. Command post; 3. Control terminal; 4. Ventilation duct; 5. Ventilation opening; 6. Integrated detection device; 7. Wireless broadband self-organizing network; 8. Negative pressure fan unit; 9. Detection room; 10. Electrochemical oxygen sensor; 11. Exhaust pipeline; 12. Combustible gas pipeline; 13. Absorption tank; 14. Aeration equipment; 15. Combustion pipeline; 16. Combustible gas fan; 17. Burner. Detailed Implementation

[0017] Please see Figure 1In this embodiment of the present invention, an online monitoring system for confined space operations includes a confined mine shaft 1, a command post 2, and a control terminal 3. Ventilation ducts 4 are laid inside the confined mine shaft 1. The confined mine shaft 1 is also equipped with multiple integrated detection devices 6, a wireless broadband self-organizing network 7, and ventilation openings 5. Negative pressure fan units 8 are installed at the outlets of the ventilation ducts 4. Multiple wireless broadband self-organizing networks 7 establish a mesh network controlled by the command post 2. The integrated detection devices 6 are wirelessly connected to the wireless broadband self-organizing networks 7. The command post 2 receives and transmits signals from the integrated detection devices 6 through the mesh network built by the wireless broadband self-organizing networks 7. The wireless broadband self-organizing networks 7 utilize wireless communication technologies, such as microwave and radio frequency, to establish communication links between nodes. Nodes can automatically discover each other and form a network topology through a self-organizing algorithm, achieving multi-hop data transmission. This method does not rely on pre-laid wired infrastructure, possessing strong flexibility and rapid deployment capabilities. The wireless broadband self-organizing networks 7 establish connections with the integrated detection devices 6 within range. The command post 2 controls the integrated detection devices 6 and transmits data through the wireless broadband self-organizing networks 7, achieving wireless transmission and control.

[0018] In a preferred embodiment, the negative pressure fan unit 8 sends airflow from the ventilation duct 4 into the detection chamber 9. An electrochemical oxygen sensor 10 is installed in the detection chamber 9. The control terminal 3 controls the airflow of the negative pressure fan unit 8 based on the detection data of the electrochemical oxygen sensor 10. In this application, the negative pressure method allows gas to enter the confined mine shaft 1 from the outside and then circulate out of the confined mine shaft 1 through the ventilation duct 4.

[0019] In a preferred embodiment, the integrated detection device 6 integrates multiple functional modules, including gas detection, data processing, alarm prompting, wireless communication, and camera functions;

[0020] The integrated detection device 6 integrates multiple existing technologies that can achieve specific functions onto a single carrier, including gas detection, data processing, alarm prompts, and wireless communication, thereby improving the overall performance and ease of use of the device.

[0021] Specifically, it includes the following modules;

[0022] High-definition video surveillance and AI recognition technology:

[0023] 1. Equipped with a high-definition camera, supporting 1080P resolution, providing clear and detailed images, and capable of capturing real-time work conditions in confined spaces;

[0024] By integrating AI recognition technology, it can automatically identify the identity of workers, detect abnormal situations such as falls, and issue alarm signals in a timely manner, thereby improving rescue efficiency;

[0025] 2. Multi-gas online detection technology:

[0026] The device integrates multiple gas sensors, enabling it to detect the concentration of toxic, flammable and explosive gases and oxygen in confined spaces in real time.

[0027] The gas sensor has high concentration protection and fault self-checking functions, and can automatically calibrate to reduce detection errors and ensure the accuracy of detection results.

[0028] 3. Internet of Things and Cloud Platform Technologies:

[0029] By leveraging IoT and cloud platform technologies, monitoring devices at multiple confined space work sites can be connected into a mesh network, enabling centralized management and analysis of data. Through the cloud platform, large amounts of monitoring data can be stored, processed, and mined to provide decision support for safety management, such as risk warning, trend analysis, and accident prediction.

[0030] In a preferred embodiment, an electric air valve is installed on the vent 5. The control console 2 controls the opening degree of the vent 5 and the operating power of the negative pressure fan unit 8 through the gas detection data of the integrated detection device 6. The gas detection module equipped in the integrated detection device 6 detects the gas in the area. When the concentration of harmful gas or flammable gas reaches a certain level or increases, reaching the preset peak value of the control console 2, the control console 2 increases the operating power of the negative pressure fan unit 8 and adjusts the opening degree of the electric air valve in the area to accelerate the airflow circulation in the area.

[0031] In a preferred embodiment, the output end of the detection chamber 9 is equipped with an exhaust pipeline 11 and a combustible gas pipeline 12 via a three-way valve. An absorption tank 13 is set on one side of the confined mine shaft 1, and an aeration device 14 is installed at the bottom of the absorption tank 13. The combustible gas pipeline 12 is evenly distributed into the absorption tank 13 through the aeration device 14. After the air is circulated out, it is further tested to analyze the amount and concentration of hazardous gases contained inside. The gas is then selectively sent into the exhaust pipeline 11 or the combustible gas pipeline 12. The switching of the pipeline is achieved through a three-way valve, which is controlled by a control terminal 3. The control terminal 3 controls the switching of the pipeline by the value detected by the electrochemical oxygen sensor 10.

[0032] In a preferred embodiment, the top of the absorption tank 13 is sealed with a top cover, which is connected to the combustion pipeline 15 and the burner 17. The confined space may produce combustible gases such as methane and carbon monoxide, toxic and harmful gases such as hydrogen sulfide or sulfur dioxide, and other gases such as carbon dioxide. This application performs simple treatment on these gases. The toxic and harmful gases such as hydrogen sulfide or sulfur dioxide are fused with water in the absorption tank 13 through aeration and can be recycled. Combustible gases such as carbon monoxide are insoluble in water, so after aeration, they are sent from the combustion pipeline 15 to the burner 17 for ignition.

[0033] In a preferred embodiment, a combustible gas fan 16 is provided on the combustion line 15.

[0034] It should be noted that all the above embodiments belong to the same utility model concept, and the descriptions of each embodiment have different focuses. Where the description in a particular embodiment is not detailed, please refer to the description in other embodiments.

[0035] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A confined space operation online monitoring system, comprising a confined mine shaft (1), a command platform (2), and a control terminal (3), characterized in that, Ventilation ducts (4) are laid inside the restricted mine shaft (1). The restricted mine shaft (1) is also equipped with multiple integrated detection devices (6), wireless broadband self-organizing networks (7) and ventilation openings (5). Negative pressure fan units (8) are installed at the air outlets of the ventilation ducts (4). Multiple wireless broadband self-organizing networks (7) establish a Mesh network controlled by the command center (2). The integrated detection devices (6) are wirelessly connected to the wireless broadband self-organizing networks (7). The command center (2) receives and transmits signals from the integrated detection devices (6) through the Mesh network built by the wireless broadband self-organizing networks (7).

2. The online monitoring system for confined space operations according to claim 1, characterized in that, The negative pressure fan unit (8) sends airflow from the ventilation duct (4) into the detection chamber (9). An electrochemical oxygen sensor (10) is installed in the detection chamber (9). The control terminal (3) controls the air supply volume of the negative pressure fan unit (8) through the detection data of the electrochemical oxygen sensor (10).

3. The online monitoring system for confined space operations according to claim 2, characterized in that, The integrated detection device (6) integrates multiple functional modules, including gas detection, data processing, alarm prompts, wireless communication and camera functions.

4. The online monitoring system for confined space operations according to claim 3, characterized in that, An electric air valve is installed on the ventilation opening (5). The control console (2) controls the opening degree of the ventilation opening (5) and the operating power of the negative pressure fan unit (8) through the gas detection data of the integrated detection device (6).

5. A confined space operation online monitoring system according to any one of claims 2-4, characterized in that, The output end of the detection chamber (9) is equipped with an venting pipeline (11) and a combustible gas pipeline (12) through a three-way valve. An absorption tank (13) is set on one side of the restricted mine tunnel (1). An aeration device (14) is installed at the bottom of the absorption tank (13). The combustible gas pipeline (12) is evenly distributed into the absorption tank (13) through the aeration device (14).

6. The online monitoring system for confined space operations according to claim 5, characterized in that, The top of the absorption tank (13) is sealed with a top cover, and the top cover is connected to the combustion pipeline (15) and connected to the burner (17).

7. The online monitoring system for confined space operations according to claim 6, characterized in that, A combustible gas fan (16) is installed on the combustion pipeline (15).

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