Wireless Streetlight Monitoring System Based On Intelligent Strategy

With the rapid development of Chinese urbanization, strengthen urban infrastructure hasbecome increasingly widespread concern from the central attention and the whole society. Asa part of urban infrastructure construction, streetlights not only inextricably link with people’sdaily life, but also play an important role in the security management, transportation andappearance of the city, and the design level of streetlight monitoring system reflect the levelof urbanization. Currently, streetlight monitoring system has the shortage such as the outdatedlights switch, serious energy consumption after midnight and low maintenance efficiency.Based on the above reasons, this paper designed the streetlight energy monitoring systembased on the traffic flow detection. The system adopts three-layer monitoring structures whichincludes monitoring center, monitoring station and monitoring terminal, the system adoptstwo layer network which include GPRS and ZigBee. The overall design idea is thatmonitoring center controls the streetlights switch according to the natural environmentilluminance information. After opening the streetlights, monitoring stations introduce thesound detection technology in order to detect each entrance road traffic flow information inthe real time. The voltage and brightness of the streetlights are regulated according to thesound information.This thesis introduces the structure of the system and intelligent control strategy ingeneral firstly. According to the system design ideas, through comparative analysis of theexisting short-range wireless communications technology, this paper determines the ZigBeetechnology which is fit for the single streetlight control. The system of network topologywhich used ZigBee subnet has been designed. And then the paper introduces the softwaredesign of system communication module, the paper introduces the detailed software designprocesses of ZigBee module, which include ZigBee software development tools, ZigBee stack,ZigBee network settings, ZigBee routing algorithm, ZigBee communication frame format andZigBee application layer software design process of each monitoring node. The GPRSmodule software design process include the introduction of GPRS technique, system GPRSmodule AT command, GPRS module communication frame format and the GPRS module ofthe system software design process. And then introduces the intelligent lighting dimmingalgorithm based on fuzzy control, mainly from the choice of the control algorithm, fuzzycontrol system, fuzzy control algorithm and the basic principles of the system of intelligentdimming algorithm design is discussed in detail, then this paper introduced a data acquisitionand processing program design process. Finally introduced the streetlight control softwaredesign and implementation of control module of the streetlight node, monitoring station andthe monitoring center, and the monitoring software of monitoring center is designed.