A common application scenario for WSNs is that the sensor nodes sense the physical environment, process the sensed data and transmit them to remote user periodically. However, in most scenarios, client user is not interested in all the sensed data pushed by the gateway. Too much unnecessary sensed data may make a burden on the communication. In this paper, based on the OSGi (Open Service Gateway Initiative) platform, we propose an extensible and configurable WSN gateway with Data Process Engine. The sensed data can be examined, analyzed and filtered within the Data Process Engine, according to the queries that deployed by the client user. Furthermore, a gateway access method via web browser using XMLSocket is introduced in this paper. Finally we implement and deploy the gateway on the TI OMAP 3530 platform and an implementation scenario has been conducted to confirm the feasibility of this solution in an indoor environment.
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