Design And Implementation Of Smart City Street Light Control System Based On Internet + WSN

Smart City is a new concept of city management appearing along the rise of new technologies such as Internet of Things and Cloud Computing.As a basic public service facility,the City Street Light System should also uphold this idea and provide more humanized,intelligentized and scientific services.Considering these needs above,this thesis studies some related technologies such as sensor technology,Internet of things technology,Internet technology and Beidou Positioning technology,and then designs and implements the Smart City Street Light System based on "Internet + WSN + Road Lighting Control",which combines automatic time-sharing control mode,real-time control mode,and light and microwave detection control mode together.For the remote,centralized and intelligent management of the street lights,this system connects the street light nodes to the Internet with Zig Bee and a variety of sensors,which also contains the ieda of “Internet+”.In this thesis,Zig Bee is used to realize the telecommunication among street light nodes,and the Internet technology is used to achieve remote access to the intelligent monitoring system of LED street light,it is obvious to embody the idea of networking and intelligent with "Internet + WSN".Apart from this,kinds of sensor technologies such as photosensitive sensors and Doppler microwave radar are used to collect diverse data,Beidou satellite and Zig Bee network positioning technologies are used to quickly and accurately locate the failing node,and finally Beidou module is also used to obtain the precise time from Beidou satellite system,which ensures the timeliness of the sensor information.The system of this thesis has been rigorously designed by hardware and software,which connects street nodes to the remote server through the gateway,so as to realize the remote uploading of data and the remote management of nodes.This thesis has carried on the hardware module function test and the system parameters test for the street light system,and completes the comprehensive debugging of the hardware and software parts,which includes the multi-control mode test,the feedback test of falling nodes,and the communication test between the previous and the next position nodes.Results show that the street light system has realized expected functions such as remote control,data acquisition,fault locating and automatic control.In addition,the performance of the street light system is tested,and the results show that the power consumption of the system is in the milliwatt level,achieving the goal of low power consumption.At the same time,its hierarchical and modular design style makes it easier to maintain,upgrade and expand functions.Therefore,the Smart City Street Light System based on "Internet + WSN + Road Lighting Control" proposed in this thesis has been complately finished.which has a certain practical value and economic value,and it will provide a good reference value for the batch design in the future.