关键词: 事件, 查询处理, 无线传感器网络, 移动性, 数据聚集

Abstract: In the hybrid sensor network, the mobility of sensors creates dynamic changes of query areas. Aiming at the problems that data gathered inquires in the dynamic inquires areas can not be handled effectively, this paper puts forward a processing method based on the location of the events related query（ELAQ）. It includes the query distribution algorithm, the maximum distance projection agent selection algorithm, query propagation in network and aggregation algorithm. The model of ELAQ has the character that it is triggered by events inquires, and the results of inquires depend on the position of moving sensor. The results show that, compared with the TinyDB query processing methods, this method increases the search results accuracy, and shortens the response time of inquires.

Key words: event, query processing, wireless sensor networks, mobility, data aggregation