Design Of LED Intelligent Lighting System Based On DALI And WiFi

According to the development demand for intelligent lighting,in this paper,a set of LED intelligent lighting system is designed based on DALI and Wi Fi technology,which aims to provide people with hig h quality light environment and provide a convenient method of control of indoor light environment.In order to achieve the design purpose,the specific researches are as following:Firstly,this article introduces the domestic and international intelligen t lighting technology,especially the communication technology involved in domestic intelligent lighting industry.Finally,on the base of the comparison of various intelligent lighting technologies and analysis of the advantages and disadvantages of the technologies,the final choice of combining with DALI and Wi Fi technology was made to approach system development.Following the comparative analysis for the different technologies,a brief analysis of DALI protocol and UDP protocol was made in the paper.In order to achieve the simplicity of communication data,a set of own private protocol based on DALI protocol and UDP protocol was defined in this paper.Then,based on the private protocol,this paper completes the design of the communication mechanism between the lamp and the client.The whole design process of communication mechanism includes the design of the main controller,PC-side software design and mobile terminal software design.After the whole system frame was built,considering the applicabilit y and intelligence of the system,this paper provides an automatic address allocation method and network full coverage technology.The automatic address allocation method is mainly used in the automatic allocation of lamp addresses of the lighting system,reducing the cumbersome nature of manual allocation of address.Network coverage technology has two meanings,one is that DALI network covers all the corner of the required lighting place,and the other is that the Ethernet used in the DALI master communication with the client the paper in this article should cover the every corner of the required lighting place.The technology not only enhances the capacity of the system for the number of lamps,but also extends the range of customer’s indoor activities.Finally,by the system designed in this article,users can easily control all indoor LED lights through a smart phone or computer,via wireless or wired method to achieve the goal of individual dimming control,combination dimming control and scene switching.