Abstract: Aiming at the diversity of wireless sensor network performance evaluation indicators and the lack of unified standards,an overall evaluate system to assess the performance of wireless sensor network is designed.The system includes spectrum analysis subsystem,current acquisition subsystem and wireless sensor monitoring subsystem.The air spectrum,working current,network packet loss and throughout characteristics are acquired,counted and analyzed,and the performance evaluation of wireless sensor networks is realized.

Key words: Wireless sensor network, Evaluation system, System design