1. Industry background
In the production process of general industrial production departments, the toxic and harmful gases discharged into the air of the workplace not only directly affect the safety and health of the operator, but also pollute the surrounding environment. Especially in the production process with outdated equipment and backward technology, the problem of toxic gas hazards is particularly prominent. Acute poisoning accidents occur frequently in the production process of enterprises. The concentration of toxic and harmful gases in many workplaces greatly exceeds the national standards, which seriously threatens the health of the workers.
In order to control the impact of toxic and harmful gases on the health of workers and take effective measures to control the hazards of toxic gases, the composition, nature, and quantity of toxic and harmful gases in the workplace and the toxic and harmful gases discharged into the atmosphere must first be tested and analyzed. According to the analysis results of the gas detector, take targeted measures to control and effectively control environmental pollution. Use gas detector technology to detect and analyze the concentration of toxic and harmful gases discharged into the dust after purification, evaluate the purification results, find problems, and improve in time to make the concentration of toxic and harmful gases discharged into the atmosphere meet national standards.
The monitoring of toxic and harmful gases is a red line related to environmental protection and production safety in the fields of oil, natural gas and chemical industry. In the traditional way, although the monitoring effect can be achieved by manually holding a gas monitor or installing a fixed gas detection alarm, it is more time-consuming It is laborious and time-efficient. However, traditional monitoring equipment can analyze the gas monitoring data in real time through the Internet of Things monitoring platform by means of Internet of Things communication means, thus effectively solving the environmental protection and safety problems in industrial gas monitoring.
Second, the solution
In response to the above-mentioned industry pain points and different scenarios in industry and home, some people have combined solutions based on the accumulation of networking communication technology for many years, and have formulated different scenarios of toxic and harmful gas detection solutions.
(1) Industrial hazardous gas detection solution
Aiming at the production environment of the chemical industry, the industrial environment monitoring system is adopted. By installing various sensors such as combustible gas and toxic gas detection alarms, real-time monitoring of various gases and environmental parameters in chemical sites, the following two are proposed according to different networking methods. Program:
1) Wired networking: The gas controller outputs RS485 signal, which is connected to the bus controller through the 485 bus. The bus controller is converted into a network signal through the serial server and transmitted to the manned cloud Internet of things monitoring system platform, thereby achieving toxic to the on-site environment Real-time monitoring and remote alarm function of harmful gas concentration.
2) Wireless networking: The gas controller outputs RS485 signals, and connects to a multi-bus controller via the 485 bus. The bus controller aggregates the real-time information such as gas detectors, fans, cameras, solenoid valves, and alarm indicators. ， Transmit the collected data to the man cloud IoT monitoring system platform via 4G DTU or 4G router, so as to realize the effective monitoring of the toxic and harmful gases in the on-site environment. Send an alarm message to the person in charge.
(2) Home intelligent gas alarm solution
The home smart gas alarm solution is to detect whether the home gas leaks through real-time intelligence. When a leak is detected, it can be linked to the alarm and cut off the gas source, thereby avoiding the occurrence of dangerous accidents such as gas poisoning and gas explosion caused by gas leakage. The following are network solutions for different application scenarios:
1) The gas alarm has a built-in NB module. When the gas concentration exceeds the standard, the alarm will immediately alarm and send the alarm information through the NB network to the man cloud IoT monitoring system platform, and the platform will notify the user of the alarm information.
2) As a part of the smart home, the gas alarm is embedded with a wifi module. The alarm is connected to the router in the user's home through wireless wifi. When the natural gas concentration reaches the alarm value, the alarm immediately sends an alarm and sends it to the mobile APP Call the police.
(The module is inside the built-in device, you can use the explosion diagram to show)
Three, program advantages
Advantage 1: Help traditional gas detector manufacturers realize rapid intelligent transformation and upgrade, and realize remote sensor data collection through different networking solutions.
Advantage 2: It can realize the unified monitoring and management of the equipment for all the control points of toxic and harmful gas detection.
Advantage 3: Through the multi-level user rights management function of the monitoring management platform, the hierarchical management of the monitoring system is realized, and the different responsibilities of key link personnel are highlighted.
Advantage 4: Both the alarm information and the real-time status of the device can be notified to the person in charge by the platform through WeChat, email, telephone voice, etc. as soon as possible.
Advantage 5: Integration of software and hardware. When purchasing hardware, you can choose a cloud-based IoT monitoring system platform to help enterprises quickly go to the cloud. You can use a public cloud platform or customize it for private deployment.
4. Industry Application
The toxic and harmful gas detection solution monitors the on-site environmental gas and displays a large amount of data information through data modeling in a timely and accurate manner, which can reflect the growth and distribution of data and distribution characteristics, etc., and provide emergency support for enterprise safety management. Through risk analysis and early warning, all kinds of dangerous accidents can be effectively avoided. The scheme can be widely used in various industries where flammable or toxic gases exist in gas, petrochemical, metallurgy, steel, coking, electricity, etc.
In addition, with the improvement of people's safety awareness and the development of smart homes, this solution can be applied to families as part of smart homes.
