Abstract
An environmental monitoring system based on wireless sensor networks can monitor in real time of toxic gases which exist industrial emissions from the industrial field. It focuses on the hardware structure of the system, and some specific design was carried out against problems of high-temperature and uneven distribution of gas concentration in industrial field: by the redundant design of a single-node to solve the problem of uneven distribution; by adding semiconductor constant-temperature apparatus in the system to overcome the problem of high-temperature. Experimental results show that the system could meet the requirements of monitoring in real time of toxic gases in adverse industrial field. Consequently, it has a high practical value.
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