Abstract
This paper describes the development of a wireless sensor network for remote water vapor detection. The network is composed of three parts: the base station, the router node, and the end node. The end node is fabricated from distributed-feed-back (DFB) laser water vapor detection systems. Multi-node topology is adopted among the water vapor detection nodes with ZigBee multi-hop mesh routing protocol for communication, and acquisition data are transmitted to the data center through wireless communication. The network can detect water vapor down to 1ppm, and an excellent stability is observed in 100 days. The system has been put into an actual test application, and it will be used to monitor environment change with a high precision.
Published Version
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