Context-Aware Applications in Mobile Sink of Wireless Sensor Networks

The paper uses Zigbee wireless sensor networks to implement Context awareness through measuring the RSSI values for position. To decrease the situation of sensor failure, it is used low consumption in Zigbee wireless sensor networks. Since the transmission range of each sensor node is limited for low consumption, the transmission distance would be constrained severely. Thus, we propose that the mobile data collection device is used to collect each node´s data and then aggregate data to the host side. We use RSSI indicator of each nodes to judge the relative position of this mobile sink to make context-aware services.