Design And Implementation Of The Indoor Lighting Control System Based On Expert System

Energy is one of the important factors of economic development.At the present stage of modern society,the shortage of energy is becoming more serious,which restricts the economic development.At the same time,the excessive use of energy makes the environmental pollution more serious.Therefore,people have to research clean energy.People pay more attention to natural light,which is an inexhaustible source of clean energy,and hope that it can be used for social development.Indoor lighting is an important part of building construction and also a major part of energy consumption.At present,indoor lighting in most buildings is still under the traditional control.The consumption of electrical energy is particularly serious,on condition that lights are turned on when work started and turned off when work finished.What's worse,it wastes a large amount of electrical energy.Therefore,people in the lighting field propose to use natural light for indoor lighting and the indoor lighting system to reduce the consumption of electrical energy.Taking the office building interior lighting system as an object,this paper designs an indoor lighting control system which based on expert system.This article started from the composition of indoor lighting.Besides,combined with the current LED dimming technology and the functional requirements of control system this paper established the general framework of indoor lighting control system based on expert system,through the analysis of the impact of natural light and the effect of venetian shade.For the complex features of natural light,introducing the basic knowledge of natural light and related laws,as well as analyzing the attenuation of natural light in the room,this article established natural direct light indoor attenuation model,natural scattering light indoor attenuation model,and the relationship model between the shutter angle and the amount of natural light entering the room.According to the variability of natural light,a control algorithm based on expert classification was proposed.Shutters were used to classify control natural light according to changes of outdoor environment.Through the analysis of the illumination distribution of indoor roof lamps,an illumination distribution model of indoor lamps was established.In order to quickly obtain the optimal illumination combination of the lamps,an optimization method of the illuminance parameters of the luminaire based on the improved particle swarm algorithm was established,by using the illuminance distribution model.Finally,based on the established mathematical model and the functional requirements of the control system,an indoor lighting control system was designed and the control effect was experimentally verified on the built hardware platform.Comparing the theoretical data with the actually detected data,and conducting energy-saving analysis,the results show that the indoor lighting control system achieved the expected results and the error was within the allowable range,which can greatly reduce the energy consumption of the indoor lighting system of a building.