Design Of Intelligent Control System For Commercial Lighting Base On DALI

As an emerging industry which is improving day by day,the intelligent lighting industry makes the market demand of the industry rising,because of its excellent lighting effect and highly targeted personalized linghting plan.According to the product characteristics of the industry,and aiming at the lighting demand of the hotel industry,this paper designed a commercial intelligent lighting system based on the DALI communication protocol.The system consisted of upper computer,main host and slave computer(DALI slave computer),in which the main host used STM32 microcontroller as the core,and loaded a number of necessary modules to realized its control function.The main modules included the main control module(STM32),power conversion module,WIFI communication module,USB-232 communication module and DALI port.The host communicates with the slave computer through the DALI port,and implements the control function of the lower computer based on the DALI protocol.The machine is equipped with a ballast by lighting and LED DALI communication module through a DALI signal transmitting and receiving system of the host,open and close and its modulation of brightness and color,so as to achieve the lighting effect of the user's needs.The upper computer of the system is composed of the mobile phone APP control program and the control program of PC,and the control program of PC uses the USB communication port carried by the PC terminal.Based on the RS23 communication standard,the communication between the USB data line and the system host is realized.The mobile phone APP control program uses WIFI module of mobile,based on the UDP protocol,through the environment WIFI network to achieve communication with the system host.After the communication between the host computer and the host of the system,the user can set the basic parameters of the system through the control interface of the PC terminal control program,such as WIFI parameters,lighting parameters,scene parameters,etc..After setting,the user can download the parameters set on the PC end through the APP control terminal of the mobile phone,and use and change it.Each change of the user will be sent to the PC control program by the system host,and the PC back-end processing program records its change content,and classifies it according to the user's personal information.Then,the similarity between the users of the same type is compared by the collaborative filtering algorithm,and the modulation preference is predicted to realize the personalized recommendation function.At the same time,the system build process,through particle swarm optimization algorithm,the hotel industry lighting standard based on the daily lighting scheme is optimized,provides five different lighting schemes for use when the system is initialized.Finally,the system can realize the wired and wireless dimming settings of the lamp,and the mobile APP control terminal supports one-key open scene and single lamp modulation function,especially the personalized scene recommendation function.