面向三峡库区水环境监测的混合网络构建

针对三峡库区分布广,面积大的特殊应用背景,提出了一种新的适合三峡库区水环境监测网络构建的组网策略——"一网多PAN(Personal Area Network),一PAN多簇",构建了一个包含WSN、GPRS和Internet的三层混合网络模型,并采用"告警上报,点播访问"的数据访问流程实现了监测网络数据传输。实验表明:该混合网络可以满足三峡库区水环境监测的应用需求;同时,"告警上报,点播访问"的数据传输流程可以有效降低节点能量消耗,延长网络生存周期。

A Hybrid Network Construction for Water Environmental Monitoring of Three Gorges Reservoir

Aim at the wide distribution and large area of Three Gorges Reservoir,a new network strategy- for its water environment monitoring network,one network containing muhi-PAN （Personal Area Network） and one PAN containing multi-clusters ,is put torward. A three-hy- brid network model including WSN, GPRS and Internet is constructed. And the data transmission of monitoring network is implemented by the data access process of alairm reporting and on-demand access. Researches indicate that the hybrid network could meet the need of water environment monitoring of Three Gorges;with the help of this data transmission process,the energy consumption is reduced and network lifetime is prolonged.