Optical Wireless Network Of Communication And The Application To Airfield Navaid Lighting Detecting

Airfield Navaid Lighting System is an essential part of an airfield. At night or bad visibility, it can help the pilot to take off and land the airplane and ensure the airplane safety. As the modernization of airfield management developing, it is required that Airfield Navaid Lighting System can provide intelligent detection and control. Airfield Navaid Lighting Detecting System is able to find out the faults and make sure the whole navaid lighting system running well. So it is good to save energy and ensure the safe take-off and landing of airplanes.At present there is little reference on the subject except several product specifications. All the products ask for the corresponding constant current lighting adjustor, which is too expensive for the current working airfields to apply. It is a great limit to develop the modernization of airfield management.In the thesis, some existent and adoptable projects are researched. Spend many time studying the system difficulties and get the first-hand and exact data. The problems, which must be considered and solved in design, were proposed, after studying and measuring the Xiamen Airfield and Shantou Airfield. Propose the new project that network of communication based on infrared ray. The new project breaks through the many restricts of conventional method, and thoroughly resolve some problems that are due to isolation transformer and different constant current lighting adjustor. The new infrared light transfer circulation circuit structure and access control method are proposed. Some key problems such as the communication distance of infrared light, interfering infrared sensor by reason of the natural and artificial ray and the information interference in identical communication circulation circuit because of several entrance-exit information are solved. Implement reliable localization and control of Airfield Navaid Lighting System troubles, and establish a low cost system that can be practical application.The new project based on infrared ray can reliably process the data transfers and state detection.