能量约束无线传感器网络节能策略与状态估计协同研究  

Collaborative Research for Energy Conservation and State Estimation over Wireless Sensor Network under Energy Constraints

作　　者：王宝成[1] 王宝凤[2] 

机构地区：[1]北方工业大学计算机学院,北京110000 [2]大连大学信息工程学院,辽宁大连116622

出　　处：《控制工程》2015年第2期296-300,共5页Control Engineering of China

基　　金：国家自然科学基金(61371142);辽宁省教育厅科学研究一般项目(L201245)

摘　　要：随着传感器技术的快速发展以及在各行业的广泛应用,能量约束问题逐渐显现,成为制约无线传感器网络技术发展与应用的瓶颈之一,因此,网络环境中的状态估计必须考虑网络能耗所带来的新问题。首先从提高网络能效、延长网络寿命的角度,讨论了无线传感器网络中能量消耗的主要因素和已有的几种节能策略,包括优化介质访问控制(MAC)技术、数据融合技术与节能路由协议等。进一步,基于对状态估计问题的考虑,给出分布式传感器网络中的状态估计框架图,在考虑节点失效、链接失败等原因的基础之上,分析了基于节约能耗的传感器调度策略及无线传感器网络系统中存在的不确定性问题。最后,总结能量约束下分布式状态估计进一步研究的关注点。With the rapid development and wide application of sensor technology in industries, energy constraint problems gradually appear and become one of the bottlenecks restricting the development and application of wireless sensor network technology, so state estimation over network must consider the energy consumption problem. Firstly, the main factors of energy consumption and several existing energy saving strategies such as medium access control technology, data fusion technology and energy saving routing protocol are discussed from the perspective of improving network energy efficiency, prolonging the life of the network. Furthermore, the fiamework of state estimation is proposed over distributed sensor network, and the sensor scheduling strategy and uncertainty problems are analyzed based on energy conservation, considering the reason of node failure, link failure etc. Finally, the further research focus for distributed state estimation under energy constraints is summarized.

关 键 词：状态估计 能量受限 分布式滤波 无线传感器网络 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置]