Design Of ARINC429 Bus Measurement System Based On Embedded Linux

In the modern aviation industry, the aircraft data between the electronic aviation equipment need quickly and efficiently transmission. At present, a considerable number of military aircraft and civil aircraft data communication using ARINC429 bus standard developed by American Airlines Wireless (ARINC), it defines a standard on the communications between avionics and systems. Aimed at ARINC429 bus standard on data communication of electronic aviation equipment of civil aircraft, this article introduces a design of ARINC429 bus measurement system based on embedded linux, which receive ARINC429 bus data sent from electronic aviation equipment for testing and calibration, and aim to the aircraft inertial navigation systems,Inertial Attitude Heading Reference System and radar altimeters for joint debugging on the ground. The system can be applied to a variety of occasions, high-speed data acquisition, not only can be achieved in various aviation electronic systems for information sharing and integrated functions, and also send data about equipment working status and fault information, realize the avionics testing and maintenance.The system using a 32-bit ARM microprocessor for control core, and the hardware platform is composed of core unit and the external analog circuit system. The core unit constituted by ARM,SDRAM and Flash. The software architecture, To the Linux operating system as the basic platform, is composed of hardware drivers and GUI. In the way of Combination of hardware and software, it achieves a low-power, intelligence, hardware and software can be measured in accordance with the specific mission of an appropriate reduction of high-speed data bus detected platform.In this paper, introduces a design of ARINC429 bus measurement system based on embedded linux, including hardware design and software architecture. In the hardware of the system, it focused on the proposal selection and design, System principles and processes, as well as the hardware device functions. In the software of the system, aim to the software architecture base on Linux operating system platform, it introduces the building of Linux operating system platform and QT software development.