Lighting Control System Of Wireless LED Landscape Lamp Based On DSP

With the accelerated process of urban infrastructure and people's living standards,the urban landscape lighting has become a symbolic art of urban civilization,which is a significant value of the charming city.In the meanwhile,people are increasingly demanding of the urban environment and the quality of lighting.As the matter stands,there are still many shortcomings of researching on landscape lighting control system at present.On the one side,most of it is wired control rather than wireless communication technology.On the other side,the control mode of it is time-sharing decentralized management or timing independent control,which is already unable to meet the development requirements of the current large-scale landscape lighting.Therefore,the target of this research is focus on centralized and effective automation control.Against this background,a high-power LED landscape lighting wireless control system based on DSP is designed in this paper,which is applied in urban landscape lighting,architectural lighting,and interior decorative lighting,etc.Firstly,this paper systematically introduces the development process of the landscape lighting,including the general framework,the control mode,and the design approach,etc.Then,the landscape lighting is modularly designed in two aspects(the hardware and software),analyzing and debugging the working principle.The main function is to achieve its full-color LED control effect that is real-time,high-speed,scalable,multi-changing,which use the PC online control sending the lighting control data compliance with DMX512 protocol to DSP by means of the Zigbee wireless communication transmission network.DSP receives and decodes the lighting data to transform into the corresponding PWM,which drives the driving circuit that need receive the related control command which is corresponding with its own address and send it to the RGB LED to achieve the brightness and color adjustment.In this way,It can realize large-scale landscape lighting's control effect that is high-speed,extensible,multi-changing.And besides,the system create WSN(wireless sensor networks)via Zigbee wireless communication technology,which may contain dozens or even hundreds of sub-controllers and control a large number of LED landscape lights.Because of its simple wiring and easy maintenance,this design is so ideal for outdoor applications.Finally,by debugging and analyzing the entire system of hardware and software,this research can provide a reference value for the future work.The data illustrate that the program is feasible and stable,which is fully integrated the advantages of both Embedded and IOT(Internet of Things),improves reliability,availability and flexibility of the entire lighting control system.It also meets market trends of intelligent,networking and modular of landscape lighting system,which has broad development prospects.