Research And Development Of Digital Lighting System Based On DALI

According to "demands of the national civil construction engineering design technology", we should promote and implement the saving energy policy, in the civil project electricity design work. In order to saving energy, and creating different lighting scenes, the dissertation designs the intelligent lighting system based on DALI.This article introduces the basic concept of the intelligent lighting control, the system composition and the function of the intelligent lighting control system. It elaborates the basic content and the application of the DALI agreement, constructs the lighting system with three-tier configuration by the RS-485 network. So, it completes centralized control and management in the lighting control system based on DALI, which has various functions, such as digital addressing, step less dimming, grouping, query and preset lighting scene, etc.This article introduces the principle of the electronic ballast, and the digital addressable ballast based on the DALI, in which digital addressable ballast including the EMI filter, the PFC section, the light control electric circuit, the micro control module electric circuit, the switching circuit and the intelligence modules.The dissertation develops the surface of the center control software system using the Visual Basic, and uses Microsoft Access to establish the related database. So it complete the center control software system based on the DALI, achieves the intelligence controls and saves energy.Finally the dissertation gives the application design of the intelligent illumination control system in actual project.