Abstract: As the infrastructure in Internet of Things, wireless sensor networks must support, multiple application tasks to satisfy the rectuirement from diversified users. The current solution to wireless sensor networks middleware focuses mainly on a kind of applied domain. The architecture of middleware supporting multiple application tasks was proposed in this paper. Based on the architecture, the entire system and all relative components were designed and implemented.According to the diverse requirement, the middleware may support the different application tasks. Experiments based on simulative network prove that the middleware has good feasibility and practicability.

Key words: Wireless sensor networks, Middleware, Multiple application tasks