Transcription System Of The Aircraft Flight Parameters Based On The Embedded Computer Pc104 Developed

The research and development of the portable flight data trans-recorder system based on embedded computer PC 104 is described in this paper. The flight data which are recorded in the flight data recorder are of much importance to the analysis of the plane condition. The traditional trans-recorder has many limitations, such as inconvenience and long-time cost. Therefore we decide to develop a portable flight data trans-recorder system.At first, the designation and actualization of the flight data trans-recorder system is introduced in details. Besides describing the principle and function, hardware structure and software, the means used to make the trans-recorder more reliable as well as some features for the sake of anti-jamming and self-correction were depicted. Then the author depicts the debug method of the whole system, mainly the signal simulation of the flight data recorder, including the principle and the key technologies, such as the application of 8253 timer and interrupt. The last part of this paper is the brief summary and the reason why we will use Linux instead of DOS. The prospect of the embedded system is also given.