LED道路照明无线组网研究

发布时间：2018-01-13 22:21

本文关键词：LED道路照明无线组网研究　出处：《哈尔滨工业大学》2014年硕士论文　论文类型：学位论文

【摘要】：LED照明是一项新兴的照明技术，LED照明智能控制系统是一项研究的热点。传统的有线照明控制技术具有布线困难、可扩展性差等缺点，本文着眼于LED道路照明智能控制系统中无线组网以及无线节点硬件和软件设计等问题。本文分析了目前照明控制技术存在的一些问题，归纳了无线组网网络协议的分类。根据道路照明系统的特点，分析路灯网络拓扑特性。提出了在网状场合、链路场合和双链路场合下的拓扑覆盖算法。分析了拓扑覆盖度对网络性能的影响，主要体现在吞吐量和网络延时的影响。将拓扑覆盖度算法和ZigBee协议(简称ZBR)相结合，，提出了一种改进的协议，称为CZBR协议。CZBR协议建立在ZBR基础上，网络中的节点根据拓扑覆盖度和预设覆盖度值比较来决定是否开启路由功能。通过CZBR协议，节点可以得知所在区域的覆盖度，通过对覆盖度的得知，节点可以自主选择是否开启路由功能，这使得在保持低覆盖度的同时能增强网络冗余性，保持高的网络吞吐量。设计了面向LED照明应用的无线节点，并进行了硬件测试。节点的发射功率为16dBm。在ZigBee协议栈上进行开发，可以通过上位机观察网络的拓扑。将ZBR协议以及CZBR协议被移植到NS2中，在NS2中搭建了各种拓扑下路灯节点无线组网的仿真环境。在三种情况下，对CZBR和ZBR协议进行仿真对比。仿真得出CZBR协议比ZBR协议具有更高的吞吐量。
[Abstract]:LED lighting is an emerging lighting technology , and the LED lighting intelligent control system is a hotspot of research . The traditional wired lighting control technology has the disadvantages of difficult wiring , poor scalability , etc . The paper focuses on the problems of wireless networking and hardware and software design of wireless node in LED road lighting intelligent control system . This paper analyzes some problems existing in the current lighting control technology , sums up the classification of the network protocols of the wireless networking . According to the characteristics of the road lighting system , the topological properties of the street lamps are analyzed . The influence of the topological coverage on the network performance is analyzed . The influence of the topological coverage on the network performance is analyzed . By combining the topological coverage algorithm and ZigBee protocol ( ZBR ) , an improved protocol called CZBR protocol is proposed . The CZBR protocol is established on the basis of the ZBR . The nodes in the network decide whether to turn on the routing function according to the topological coverage and the preset coverage value . Through the CZBR protocol , the node can know the coverage of the region , and the node can independently choose whether to turn on the routing function through the CZBR protocol . A wireless node for LED lighting applications is designed and hardware test is carried out . The transmission power of the node is 16 dBm . The topology of the network can be observed through the host computer . The ZBR protocol and CZBR protocol are transplanted into the network . In three cases , the CZBR and ZBR protocols are simulated . The simulation results show that the CZBR protocol has higher throughput than the ZBR protocol .

【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM923;TN92

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