Research And Development Of Control System Based On DALI

With the rapid development of science technology and society, even-developing diversity, reliability, effective and easy use were required by customer. Besides, because of large energy consumption, energy saving is regarded as one of important topics of the world's economy. Thus, intelligence and energy saving gradually become the main developing direction of current electric lighting equipments and systems. Intelligent lighting technologies emerge as the times require: intelligent lighting system based on micro-electronics technology, communications technology and control technology, which integrate lighting implements in buildings effectively. It may communicate with other electric equipments or sensors in real-time. The intelligent lighting system realizes telling management and control, utilizes sound dimming solution for farthest energy saving. This paper researches control system based on Digital Addressable Lighting Interface (DALI), understands and analyzes protocol deeply, derives essence from newest academic results in international lighting field and engineering experience of group, improves DALI in farther step: increases compatible local control function, proposes three-state feedback mechanism solution of intelligent lighting and vulnerable component separated framework of electronic dimming ballast, develops and designs related prototype machines.This paper analyzes development and actuality of lighting system of intelligent home, introduces high-influence intelligent home protocols at home and abroad, expounds important functions of intelligent lighting, then researches control system based on Digital Addressable Lighting Interface in innovation way as following: (Related patents authorized) Because traditional DALI intelligent lighting system lacks local control, simple local control slave unit and scene local control slave unit are increased. Chapter Three designs compatible solutions of intelligent lighting system based on DALI. Master unit with multi-functions is designed for intelligent scene control based on sensors.Work states in the feedback mechanism of control unit, implement unit and object controlled are researched. Chapter Four designs DALI implement unit based on special chip AT90PWM2 for realizing three-state feedback function. Vulnerable separated solution is adopted to decrease the whole possession cost.Chapter Five designs DALI system supervisory control software based LabVIEW which is a mainstream graphic programming language in IT field. It has many characteristics including short development cycle, easy maintenance and extension, and friendly operation.