Wireless Sensor Networks (WSN) are an important technological support for smart environments and ambient assisted applications. Up to now most applications are based on ad hoc solutions for WSN, and attempts to provide uniform and reusable application are still in their youth. Among these attempts, those integrating database technologies and WSN appear the most promising. Under this trend of research we propose a general framework to be used in context aware architectures aimed at integrating wireless sensor networks by exploiting a distributed query processor approach. In the proposed approach the WSN can be programmed using a query language (MW-SQL) which offers constructs specialized for sensor networks. The query language is offered by a JDBC driver which is encapsulated within the OSGi framework
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