Design and implementation of ZigBee based gateway for environmental monitoring system

This paper proposed a three-part framework for deploying an environmental monitoring system (EMS). An enhanced gateway which supports Bluetooth based local wireless access and GPRS based remote communication is designed to be an interface between the client tier and a deployed ZigBee wireless sensor network. The binding mechanism which associates a service on one node with a service on another node is used so as to allow communication between two services to be performed without the need to specify the address. An implementation for verifying the EMS including the gateway as well as the sMotes is presented, and experimental results show that, the proposed architecture can achieve the environmental monitoring performance, and except the gateway, other nodes in the system work on sleep mode at most of the time, which will improve the lifetime of the whole system efficiently.