Sensor information networking architecture and applications

This article introduces a sensor information networking architecture, calle d SINA, that facilitates querying, monitoring, and tasking of sensor networ ks. SINA serves the role of middleware that abstracts a network of sensor n odes as a collection of massively distributed objects. SINA's execution env ironment provides a set of configuration and communication primitives that enable scalable and energy-efficient organization of and interactions among sensor objects. On top the execution environment is a programmable substra te that provides mechanisms to create associations and coordinate activitie s among sensor nodes. Users then access information within a sensor network using declarative queries, or perform tasks using programming scripts.