Design And Realization Of Distributed Sunlight Intelligent Lighting System

At present,China’s social and economic development is very fast,the construction industry is booming,and almost all buildings require long-term lighting.Traditional architectural lighting has created stable home environment and office environment,which has led to increasing energy consumption and environmental pollution.As the main renewable energy source in nature,solar energy has many advantages,such as high energy,no pollution,and can be used in architectural lighting instead of traditional lighting.Therefore,the research and development of solar intelligent lighting system is of great significance to the development of energy conservation,emission reduction and green lighting technology.This paper analyzes the current situation of sunlight lighting,studies the related technology of the sunlight fiber lighting,and designs the sunlight tracking device.Then it analyzes the lighting requirements of the building environment and puts forward the overall scheme of distributed solar intelligent lighting system.Based on the scheme,the main contents of the research are as follows:(1)Study the sun sensor technology,the cooperative tracking control technology and the LED constant illumination supplemental lighting technology for sunlight collecting device in distributed layout:A new type of solar tracking sensor is designed,which uses BP neural network technique to complete the collection of solar deflection information.The rs-485 bus technology is used to realize the cooperative tracking control task of distributed system.The driving mode,dimming method and connection scheme of LED are determined.(2)The control system of distributed solar intelligent lighting system is designed on STM32 controller,which provides reliable hardware foundation and software environment for the system.The hardware system mainly includes three parts: the sunlight tracking sensor,the sun tracking control core board and the LED supplemental lighting system.The software is designed in the environment of Keil u Vision5.According to the functions required by the system,it includes the software design of distributed sun tracking control and indoor LED constant illumination supplementary light.The software architecture adopts the modular idea and is designed from the top down.In this paper,the function of the distributed sunlight intelligent lighting system is tested.The test results show that the sunlight intelligent lighting system designed in this paper can complete the task of indoor green lighting,and achieve the expected purpose.