An enhancement of the ZigBee wireless sensor network using bluetooth for industrial field measurement

The main node (router, coordinator, gateway) of ZigBee based wireless sensor network enhanced by adoption of Bluetooth module is proposed in this paper to provide easy way for industrial field measurement with low-cost and portability. Only a Bluetooth module and basic circuits are required to be added to the original ZigBee network and a simplified physical model is designed and verified in wireless sensor network. The developed main node can be monitored and controlled wirelessly in real time through the designed android based application, which can be setup in a smart phone for communication, monitoring and controlling. The measured distance between the main node and the user is up to 60 meters thus greatly facilitate the industrial field measurement based on the smart phone.