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An Intelligent and Portable Air Pollution Monitoring System Based on Chemical Sensor Array

With the development of urbanization, more and more attention has been paid to the problem of urban air pollution. The expansion of city scale results in the dynamic change of pollutant distribution. The monitoring equipment based on optical analysis instrument cannot meet the new demand of spatiotemporal dynamic monitoring of pollution gas distribution in the region. The portable air pollution monitoring equipment can realize the regional monitoring of pollutants and is easy to form a monitoring network. A prototype of a portable air pollution monitoring system based on chemical sensor array is designed in this paper. The monitoring system is mounted in a portable case and can monitor the working state of the system and the process of gas measurement through the touch screen. The instrument can monitor the concentration of environmental pollution gas in real time and display the concentration change curve. It is also equipped with 4G wireless module, which can transmit the pollution gas information remotely. The reliability and effectiveness of the designed monitoring system are proved by testing under laboratory conditions.