Design Of Intelligent Street Lamp Control System Based On LoRa Technology

At this stage,the level of urbanization in China is constantly improving,and the construction of "smart city" is gradually included in the ranks of national urban planning.In the process of urban modernization,the role of street lighting system as a public infrastructure is self-evident.It not only has important significance for the city’s social security and travel safety,but also directly reflects the development level of an urbanization construction.The current mainstream street lamp control mostly uses relay control,which turns on and off regularly.This kind of lighting system lacks flexibility and causes unnecessary power loss.Urban lighting management is still manual management,and the daily maintenance of street lights is mainly done by manpower.Inspection,or the way in which citizens report sudden emergencies,restricts the efficiency of urban lighting system supervision,ranging from affecting road traffic,or causing traffic accidents,causing loss of personnel and property.Therefore,efficient and intelligent control and supervision of street lights is of great significance to urban development and residents’ daily lives.The advantages and disadvantages of Bluetooth,WiFi,ZigBee,NB-Iot and other wireless communication technologies used in smart lighting systems at present are compared and analyzed in this paper.The LoRa wireless transmission technology is applied to the design of street lamp lighting system based on the advantages of LoRa wireless transmission technology such as low power consumption,low cost and long transmission distance.The real-time control strategy used for the street lamp lighting system is realized,i.e.the circuit is then completed when someone is coming,and the circuit is then denergized slowly when someone is leaving.The problem of power loss caused by traditional timing control system for the street lamps is overcome.In the aspect of the street lamps management,the cloud technology is used to calibrate the geographic location information and working status information of each street lamp.The real-time and efficient intelligent supervision is obtained,and the management level is improved.This article mainly does the following research:1)A new type of intelligent lighting scheme is proposed.This solution keeps the street lights in a low power consumption state when there is no vehicle driving and pedestrian information in the second half of the night;when vehicles or pedestrians pass,it can realize the time-varying control of the number and brightness of street lights based on information such as vehicle driving and pedestrian speed to save The purpose of electrical energy.2)The fuzzy control is adopted in this paper.It adapts to the nonlinear time-varying system.The located area data is collected by the sensors,and then the brightness,the delayed off time and the number being to be turned on at downstream of the street lamps are controlled.3)The LoRa street light controller is designed.The main function of the LoRa street light controller is to realize the collection and processing of field data,and upload the data to the gateway coordinator through the LoRa controller module.4)An information management cloud platform is designed,through which the uploaded data is collected and managed centrally,and the real-time location of street lights is calibrated on the map to facilitate the maintenance and management of street lights.The information data of some community road is used as the data source.The fuzzy control algorithm designed for the intelligent lighting system is simulated based on the MATLAB platform in this paper.The energy-saving effect of the control algorithm is analyzed.It is proved that the power consumption after midnight can be reduced greatly by the control algorithm,and the electric power is saved effectively.