无线传感器网络资源一致访问中间件

Uniform Resource-Accessing Middleware for Wireless Sensor Network

资源一致访问中间件URAM引入资源命名管理和数据封装与解封等机制,从硬件,数据,通信三方面屏蔽差异,向应用层提供资源访问原语,使应用层软件能以一致方式访问无线传感器网络中的数据资源。实验表明,URAM在存储上仅占12.2KB,增加的本地传感器数据采集时延和远程节点资源访问时延小于0.2%,可用于Micaz,Tmote和EASI210等主流无线传感器节点。

Generic sensor nodes provide a rich expansion interface for making flexible connections with an array of simple sensors.The diversities of expansion interface controls and sensor data packet forms make upper development difficult.To address this issue,we propose the Uniform Resource-Accessing Middleware(URAM),a middleware architecture for Resource-Accessing in wireless sensor networks.URAM consists of a resource-naming management model,a data pack and unpack model,as well as a set of resource-accessing primitives.Experimental results show that URAM only occupies 12.2 KB memory space,while increasing less than 0.2%resource-accessing delay.URAM can be used on mainstream nodes,such as Micaz,Tmote and EASI210.