Research On Distributed Intelligent Lighting System And Its Control Algorithm

The development of science and technology changes people's lives in many aspects,lighting field is no exception.In the traditional lighting system,when the switch device is turned on,the brightness of the lamp is kept constant,the system can not meet the diverse needs of different scenes.And in many cases the light produced by the lamp is beyond the actual lighting needs of the people,which brings the waste of energy.At present,the lighting control system which can adjust the brightness of the lamp appears in the field of lighting,but when the system is facing some large-scale lighting scene,often there are complex wiring layout,inflexible networking and other defects.For the above problems,this paper researches a distributed intelligent lighting system.The intelligent lighting system can automatically adjust the brightness of the lamp to meet people's diverse lighting needs.At the same time,the system can also be applied to large-scale lighting scene.And the system has the advantages of wireless data transmission,convenient layout,flexible networking,etc.This paper first designs the overall framework of the distributed intelligent lighting system.This paper presents the overall program design ideas based on partition of the total computing task of lighting system and the work process of the distributed intelligent lighting system.At the same time the paper also elaborates the frame structure of distributed intelligent lighting system,and describes in detail the functions of the upper computing control platform and the sub-computing control platform in the distributed intelligent lighting system and the relationship between them.Based on the overall framework of the distributed intelligent lighting systems,this paper designs and realizes the upper computing control platform and sub-computing control platform of the distributed intelligent lighting system respectively.The upper computing control platform is based on Matlab/Simulink component,sub-computing control platform is based on Intel Edison computing module.The paper gives the design principles and processes of the hardware system and the software system of the sub-computing control platform.The design and implementation of the hardware system of the sub-computing control platform includes the selection of the devices and the design of the hardware circuit.The software part includes the design of the software modules such as acquiring lighting data,adjusting LED brightness,and transmitting data.At the same time,in order to combine with the actual scene,to the actual housing as the prototype,this paper designs an experimental housing model according to a certain proportion.In this paper,the adaptive backstepping method is used as the control algorithm of intelligent lighting system.This paper introduces the basic principles of backstepping control method and adaptive control algorithm,then combines the adaptive control algorithm with the backstepping control method and designs a control law for a class of systems with unknown parameters.And then the paper proves the stability of the system,and then selects a specific system to simulate and analyzes the simulation results.Finally,the paper arranges the distributed intelligent lighting system in the experimental housing model,the adaptive backstepping method is used as the control algorithm of the distributed intelligent lighting system,and performs some sets of experiments.And the experimental results are analyzed to prove the feasibility of the distributed intelligent lighting system and the adaptive backstepping control algorithm.