Environmental parameter monitoring using wireless sensor network

The paper presents the design and deployment of Wireless Sensor Network (WSN) for monitoring environmental parameters. The system measures air temperature, relative humidity, solar radiation and barometric pressure. The system consists of a base station and a wireless sensor node. WSN ethernet gateway attached to a host PC serves as the base station in the network. WSN measurement node with necessary sensors and signal conditioners serves as the wireless sensor node. The wireless sensor node measures the parameters and transfers the data to the base station. An application program has been developed on LabVIEW platform and executed in the host PC for data acquisition, processing, and plotting of the measurement data on a graphical chart. The program also saves the data in a file for history review and analysis. Hardware and software development of the system are discussed. Typical measurements with the present system are reported.