Research On The Bus Protocol Of The Airborne Electromechanical Communication System Based On PLC

With the development of avionic technology and computer technology, how to improve the airplane capacity doing battle becomes the main goal of our country and overseas, which is the study resource of this paper. This paper studys the bus protocol of the airborne electromechanical communication system based on PLC, and the research has pratical value to improve the modernization jf aeronautic equipments of our country.Firstly, this dissertation describes the airborne electromechanical system, the development of bus protocol, power line channel and power system; secondly, compares and discusses several bus protocols, and then proposes p-persist CSMA/CD protocol with PRI; thirdly, methods in designing the board's hardware and software based on DSP are fully discussed; finally test results are given.The end of this paper, the researching direction of the development of high-speed data transporting card of airborne electromechanical communication system, which is based on PLC in our country are put forward.