Wireless control system for gas detection in limited space

Abstract

The invention relates to the field of space gas detection, in particular to a wireless control system for limited space gas detection, which comprises a wireless gas detection control system, the wireless gas detection control system comprises hardware circuit manufacturing and software development, and modularization processing is carried out on a circuit of a monitoring device. The monitoring device is mainly composed of a controller module, a sensor module, an image acquisition module, a wireless communication module, a motor driving module and a power supply module, and the sensor module comprises a gas concentration sensor module and a temperature sensor module. The control module is mainly used for analyzing and processing gas concentration acquired by the sensor module and field image data acquired by the camera and outputting a signal to control the motor driving module; therefore, advancing, retreating, left turning and right turning of the robot, detection of on-site harmful gas, real-time measurement of temperature, snapshot of on-site images and control of wireless transmission data are completed.

Description

Technical Field

[0001] This invention relates to the field of space gas detection, and more specifically to a wireless control system for gas detection in confined spaces. Background Technology

[0002] In traditional confined space gas detection operations, workers typically need to carry bulky wired gas detection equipment into utility tunnels. During the detection process, the long cables not only restrict the workers' freedom of movement but are also prone to tangling and damage in the narrow and complex environment of the tunnels, affecting the smooth progress of the detection work. In addition, wired transmission methods have significant limitations in terms of data real-time performance and remote monitoring. Ground monitoring personnel cannot obtain gas detection data from inside the tunnel in a timely manner, making it difficult to make timely decisions and ensure operational safety.

[0003] Currently, most gas detection instruments used in the power industry are either fixed or portable. Fixed instruments can only measure data at or near the installation point, resulting in a small detection range, significant limitations, and poor representativeness. Portable instruments still require personnel to operate them on-site, compromising personnel safety. Therefore, those skilled in the art have proposed a wireless control system for gas detection in confined spaces to address the problems mentioned in the background section. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a wireless control system for gas detection in confined spaces. The wireless gas detection control system includes hardware circuit fabrication and software development, and the circuitry of the monitoring device is modularized. The monitoring device mainly consists of a controller module, a sensor module, an image acquisition module, a wireless communication module, a motor drive module, and a power supply module.

[0005] Preferably, the sensor module includes a gas concentration sensor module and a temperature sensor module, which are mainly used to analyze and process the gas concentration data collected by the sensor module and the on-site image data collected by the camera, and output signals to control the motor drive module, thereby completing the control of the robot's forward, backward, left, and right turns, the detection of harmful gases on site, the real-time measurement of temperature, the capture of on-site images, and the wireless transmission of data.

[0006] Preferably, the wireless communication module adopts advanced wireless communication technologies such as LoRa and NB-IoT, featuring low power consumption, long-distance transmission, and strong anti-interference capabilities, ensuring stable and reliable transmission of gas detection data within the utility tunnel to the ground monitoring terminal. Even in the complex electromagnetic environment within the utility tunnel, data loss or transmission interruption can be effectively avoided.

[0007] The technical effects and advantages of this invention are as follows: 1. The brand-new electronic intelligent module design displays the status of the robot and gas detection components in real time, and predicts, prompts and issues alarm signals for deviations from normal working conditions and gas concentration exceeding limits, and pushes them to managers at all levels, which greatly improves the accuracy of gas detection in confined spaces and the safety of operators, and reduces the probability of accidents. 2. The ground monitoring terminal receives wireless data from various detection nodes within the utility tunnel and displays and analyzes it centrally. Monitoring personnel can view the changes in gas concentration at different locations within the utility tunnel in real time through the monitoring terminal. Once the gas concentration in a certain area exceeds the preset safety threshold, the monitoring terminal will immediately issue an audible and visual alarm signal and send a warning message to the mobile phones or handheld terminals of relevant personnel, reminding them to take appropriate safety measures in a timely manner, such as stopping work, strengthening ventilation, and evacuating personnel. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of a wireless control system for gas detection in a confined space provided in an embodiment of this application. Detailed Implementation

[0009] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose. Example

[0010] Please see Figure 1 This embodiment provides a wireless control system for gas detection in confined spaces. The wireless gas detection control system includes hardware circuit fabrication and software development. The circuit of the monitoring device is modularized. The monitoring device mainly consists of a controller module, a sensor module, an image acquisition module, a wireless communication module, a motor drive module, and a power supply module. The sensor module includes a gas concentration sensor module and a temperature sensor module. It is mainly used to analyze and process the gas concentration data collected by the sensor module and the on-site image data collected by the camera, and output signals to control the motor drive module, thereby completing the control of the robot's forward, backward, left, and right turns, the detection of harmful gases on-site, the real-time measurement of temperature, the capture of on-site images, and the wireless transmission of data. The wireless communication module employs advanced wireless communication technologies such as LoRa and NB-IoT, featuring low power consumption, long-distance transmission, and strong anti-interference capabilities. This ensures stable and reliable transmission of gas detection data from within the utility tunnel to the ground monitoring terminal. Even in the complex electromagnetic environment within the utility tunnel, data loss or transmission interruptions can be effectively avoided.

[0011] The working principle of this invention is: In a pre-defined inspection mode, the robot can travel along a designated route, detecting the concentration of harmful gases and ambient temperature along the route in real time, acquiring real-time images of the site, and uploading the data to the command center (backend) via wireless technology, achieving functions such as automatic detection and automatic alarm. It will alarm when harmful gases exceed the standard or the ambient temperature is abnormal, reporting the abnormal data to the command center (backend) and automatically switching to manual mode. In manual inspection mode, operators can remotely control the movement path of the mobile monitoring device from the control room, acquiring real-time parameters and on-site images at the required locations. Work supervisors, safety monitors, and inspection personnel can monitor real-time data within the confined space via a mobile app.

[0012] Big data analysis of accumulated gas detection data can provide more valuable decision-making support for the safety management of utility tunnels. For example, by analyzing the trends of gas concentration changes in different time periods and areas, potential gas leak risks can be predicted, allowing for advance planning of maintenance and repair work to prevent problems before they occur. Based on the patterns of gas concentration changes, the operation strategy of the utility tunnel's ventilation system can be optimized to improve ventilation efficiency and reduce the risk of harmful gas accumulation.

[0013] The application of wireless transmission devices for gas detection in confined spaces in the maintenance of urban underground utility tunnels effectively solves many problems associated with traditional wired gas detection methods. It enables real-time and remote monitoring of gas concentration within the tunnels, greatly improving the safety and efficiency of underground utility tunnel maintenance operations, and yielding significant economic and social benefits.

[0014] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A wireless control system for gas detection in a confined space, comprising a wireless gas detection and control system, characterized in that, The wireless gas detection and control system includes hardware circuit fabrication and software development, and the circuit of the monitoring device is modularized.

2. The wireless control system for gas detection in a confined space according to claim 1, characterized in that, The monitoring device mainly consists of a controller module, a sensor module, an image acquisition module, a wireless communication module, a motor drive module, and a power supply module.

3. The wireless control system for gas detection in a confined space according to claim 2, characterized in that, The sensor module includes a gas concentration sensor module and a temperature sensor module. It is mainly used to analyze and process the gas concentration data collected by the sensor module and the on-site image data collected by the camera, and output signals to control the motor drive module, thereby completing the control of the robot's forward, backward, left, and right movements, detection of harmful gases on site, real-time temperature measurement, on-site image capture, and wireless data transmission.

4. The wireless control system for gas detection in a confined space according to claim 2, characterized in that, The wireless communication module adopts advanced wireless communication technologies such as LoRa and NB-IoT, which have the characteristics of low power consumption, long-distance transmission and strong anti-interference ability. It can ensure that the gas detection data in the pipeline corridor is stably and reliably transmitted to the ground monitoring terminal. Even in the complex electromagnetic environment in the pipeline corridor, it can effectively avoid data loss or transmission interruption.

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