关键词: 无线传感网络, 服务质量, 保障机制

Abstract: Considering the recent achievements of QoS support mechanism, the characteristics of wireless sensor network, and the actual demands of Qinghai-Tibet permafrost temperature detection, the paper puts forward that key points and requirements of the QoS support mechanism for Qinghai-Tibet permafrost temperature detection are efficient use of energy , reliable data transmission, and effective extension of network life cycle. Base on that, it analyzes the energy optimization strategy of QoS guarantee mechanism for the Qinghai-Tibet permafrost ground temperature monitoring wireless sensor network. A non-uniform sub-cluster routing algorithm is presented as well. Lastly, with simulation and pilot application in the Qinghai-Tibet permafrost automatic monitoring, it demonstrates that the routing algorithm can effectively improve the network life cycle and data transmission reliability. This study provides theoretical support and a model reference for establishing related wireless sensor network application systems.

Key words: wireless sensor network, quality of service, guarantee mechanism