Design of a portable toxic gas monitor

To solve the problem of real-time monitoring of the distribution of toxic gases in high-risk pollution areas and ensure the safety of field workers, a portable toxic gas monitoring system based on u/COS-II is designed by combining embedded system and Internet of things technology. The system can collect six kinds of toxic gases such as carbon monoxide and sulfur dioxide in the environment in real-time; display the gas concentration through the human-computer interface, set the gas alarm threshold; and use the wireless transmission unit to upload the data to the cloud server. The experimental data show that the system has stable performance and small error, which can meet the requirements of real-time, accurate and comprehensive monitoring of gas distribution in high-risk pollution sites, and remind the site staff to evacuate in time.