CAJ | 학술논문

无线传感器网络技术的引入，为中小型堤坝监测技术的发展提供了新思路。由于无线传感器网络节点采用电池供电，而堤坝环境中的数据监测条件比较苛刻，电源更换相对困难，无线传感器网络节点能耗的优化在延长整个无线传感器网络生命周期过程中显得尤为重要。本文介绍了无线传感器网络中节点能耗的主要分布，并提出了降低节点能量消耗的策略。借助半马尔可夫链理论建立了节点能耗的数学模型，分析了WSN节点的能耗情况，在保证正常数据通信的情况下，通过对节点状态的管理，延长节点的睡眠时间，从而达到降低整个网络能耗的目的。
무선전감기망락기술적인입，위중소형제패감측기술적발전제공료신사로。유우무선전감기망락절점채용전지공전，이제패배경중적수거감측조건비교가각，전원경환상대곤난，무선전감기망락절점능모적우화재연장정개무선전감기망락생명주기과정중현득우위중요。본문개소료무선전감기망락중절점능모적주요분포，병제출료강저절점능량소모적책략。차조반마이가부련이론건립료절점능모적수학모형，분석료WSN절점적능모정황，재보증정상수거통신적정황하，통과대절점상태적관리，연장절점적수면시간，종이체도강저정개망락능모적목적。
The wireless sensor network technology provides a new approach for the small and medium-sized dams' monitoring. Since WSN nodes are battery powered and updating batteries periodically in dam environments is diffi-cult, it's very important to optimize the energy consumption of WSN nodes in order to extend the whole life-cycle of WSN. This paper describes energy consumption distribution and strategies to reduce the energy consumption of WSN nodes. In addition, the algebraic model of the node energy consumption has been set up based on semi-Mar-kov chain theory. In order to ensure the whole network to survive as long as possible, the node sleeping time should be prolonged by managing their energy consumption so that the energy consumption of the whole WSN can be decreased accordingly.