Design And Development Of Intelligent Lighting System Based On Cloud Platform

At present,China’s lighting energy consumption accounts for about 15% of the total social power generation.At this stage,most buildings control indoor lighting by manually turning on/off the lights.There are a few buildings that are automatically controlled according to the preset time.Control,but can not optimize the feedback adjustment of the illuminance of the lamp according to the dynamic changes of natural light.There is a phenomenon of long lights,which causes a lot of waste of energy.Therefore,it is urgent to research and develop an intelligent dimming control system based on natural lighting.On the other hand,with the expansion of building scale,the geographical dispersion of lighting equipment has brought difficulties to management and control.Remote monitoring of building lighting control systems through cloud platforms has become the development direction of lighting technology.Because there are many types of lighting equipment and support for different lighting protocols,it is necessary to agree on the communication data format between the cloud platform and the lighting control system to improve management and control efficiency.Aiming at the problem of high energy consumption of the existing lighting control system,this thesis researched the intelligent lighting control algorithm.Since the delay of modern LED lighting control and information transmission is negligible relative to the human eye response,this paper uses linear programming to solve the optimization control of indoor lighting.The thesis first studies the intelligent direct dimming algorithm of the group control of lamps and lanterns,converts the position information such as room size,lamps,and stations into twodimensional coordinate data on the lighting plane,according to the illuminance contribution value and illuminance superposition of point light sources at a certain station According to the law,the most energy-efficient indoor lighting and the illuminance requirements that meet each station are set as the optimization control goal,and the linear programming optimization algorithm is used to calculate the dimming coefficient of each lamp.On this basis,the paper studies the indoor lighting control strategy combined with natural lighting,and establishes an indoor direct sunlight model and an indoor solar scattered light model.When natural light cannot provide illuminance requirements,the linear programming algorithm is used to solve to minimize energy consumption.The combination of the brightness of the lamps and lanterns achieves the control goal of using natural light to the maximum extent under the premise of meeting the indoor lighting requirements.In order to improve the management and control quality of the lighting control system and reduce the management cost,this paper proposes a cloud platform-based intelligent lighting communication transmission data format,which stipulates the information transmission method between the cloud platform and the underlying lighting equipment to achieve The goal of fine lighting management and control.The communication data is mainly composed of device addressing,control domain,and time domain.Among them,device addressing is used to transfer device address information,and the physical address of the device corresponds to the logical address,to facilitate the use and maintenance of the device,but also to facilitate the integration of the lighting control system and the BIM design of the building;the control domain acts as a cloud platform The function of instruction upload and release,the control domain contains 15 basic functions such as editing device address attributes,confirmation/denial commands,lighting control,scene control,etc.;in order to realize lighting energy consumption monitoring,the real-time operation and historical operation data of the equipment are specially set in the control domain The time zone is used to record the time when the message is sent,and plays a role in precise control of the system.The communication data format of the lighting control system proposed in this paper is easy to realize the data exchange between the cloud platform and the lighting control system,and it is convenient to realize the unified management of all the devices in the system.Based on the above research,this paper designs and develops an intelligent lighting control system based on a cloud platform for an office building in Beijing.The system consists of an intelligent lighting cloud platform system,an intelligent lighting controller and an underlying lighting controller,and an infrared/illuminance sensor It is composed of lighting equipment,etc.,and realizes the information sharing between the cloud platform and the lighting control system,as well as the lighting equipment.It also realizes the indoor lighting control strategy combined with natural lighting,as well as energy consumption measurement,scene control and other functions.The simulation and experimental results show that,compared with the traditional lighting control method,the intelligent lighting control method proposed in this paper can save more than 30% energy under the condition of meeting the minimum illumination requirement,and the algorithm calculation is small,which is easy to implement in engineering.At the same time,the system can use the intelligent lighting data communication transmission data format proposed in this paper,use the cloud platform to achieve unified management of the lighting control system,and implement the proposed intelligent lighting control strategy.