Design And Implementation Of Intelligent Street Light Control System Based On NB-IOT

The development of major science and technology has always brought about major changes in human social life.For a long time,street lamps have only been aimed at lighting.However,as technology changes with each passing day,especially after the emergence of Internet of Things technology,people’s consciousness Traditional street lamps have failed to meet the requirements of building smart cities and smart communities.Most of the traditional street lamps use manual,lighting control,clock control and ultra-high power operation in the middle of the night.The brightness cannot be adjusted as needed,which not only causes waste of energy but also reduces its service life.In addition,the distribution of street lamps is scattered,and the lack of effective positioning means increases the difficulty of maintenance management and wastes social resources.In this context,it is imperative to design and implement intelligent street lamps control systems.Based on the current status of street lighting system at home and abroad,this paper analyzes the necessity and feasibility of intelligent realization of street lamp system.Combined with embedded technology,cloud technology,Web technology and LPWAN,this paper designs and implements intelligent street lamp control system based on NB-IOT.The system includes a main control module,a street lamp field environment data acquisition module,a communication module,an output control module,a cloud platform,and a PC web management system.This system selects the 32-bit low-power microprocessor STM32L476RCT6 based on Cortex-M4 core as the master MCU,and selects the NB-IOT module BC95 with low power consumption,low cost,wide coverage and wide connection as the communication module,combining multiple The peripheral circuit modules such as sensors,GPS modules and relays implement data acquisition and output control,and finally realize the system hardware design.The FreeRTOS real-time operating system and state machine programming ideas are used to realize the system software design by using C language.At the same time,the current popular cloud technology is used to complete the connection of the device to the cloud platform,and the application server and PC Web management system are completed by using Java lang uage..The system improves the shortage of traditional street lamps and realizes the intelligent street lamp control system under the new era and new technology.Based on the improvement of lighting comfort,humanization and intelligence,resource conservation and system security,the system combines Web terminal,wireless communication technology,Internet of things technology and traditional street lamps to achieve on-demand illumination and data.Integration of acquisition,data transfer,data processing and control execution.At the end of the paper,the overall performance of the system is fully tested.The test results show that the system can accurately locate and accurately collect various data,and perform corresponding actions according to the data.At the same time,the data is uploaded to the application end and can be applied from the application side.Accurately issue commands to achieve remote control,meeting the demand for intelligent street lamps.