摘要
针对常规的大型猪舍场地面积大、环境复杂、控制对象多、布线杂乱等现象,提出了一种基于移动协调节点路由算法的猪舍环境监控系统。此系统包括一台ARM-Linux现场控制器,一台远程监控终端以及由各类传感器、加温器、加湿器等设备组成的无线传感网络。为了延长系统中无线传感网络的寿命,文中对网络的路由算法进行研究,在LEACH算法的基础上,对簇头与协调节点之间的传输距离上做了优化处理。通过协调节点的移动来缩短协调节点与簇头的通讯距离,从而改善了的簇头的能耗过快问题,形成了一个适合应用到猪舍环境监控系统中的新算法。仿真实验表明,该算法降低了簇头的能量消耗速率,最大程度避免了死亡节点的过早产生,提高了网络的寿命和传输效率。
According to the characteristics of piggery,such as complex environment,numerous control objects,complex wiring,a piggery environmental control system based on mobile sink routing algorithm was designed. This system consisted of the the control center with ARM- Linux, the remote control terminal and the wireless sensor network composed of various devices and sensors in piggery. This paper focuses on optimizing routing algorithm of the wireless sensor network in the system. In order to prolong the lifetime of the network,it optimized the transmission distance between CHs and sink based on LEACH algorithm. It used mobile sink and the data caching mechanism to shorten the distance between sink and CHs,it is good to improve the problem of excessive energy consumption of CHs. So,a new optimization algorithm called CLMS was proposed in the paper. The simulation results show that the algorithm reduces the rate of the energy consumption of CHs,delayed the appearance of death node, improved the lifetime of the network.
出处
《信息技术》
2017年第6期23-27,31,共6页
Information Technology
基金
国家自然科学基金资助项目(31172243)
江苏高校优势学科建设工程资助项目(苏政办发(2011)6号)
