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介绍了ARINC429串行总线的数字信息传输规范和工作方式。结合EXC-2000型429卡在某型航姿测试系统中的应用,文中给出了相应的硬件接口设计和软件的实现方法。该系统能够实时高速采集航姿系统输出的航向角、横滚角和俯仰角等航姿信息,并计算出相应的均值和方差显示在测试界面上。实验证明,该系统可广泛应用于以ARINC429总线协议输出地高速数据采集领域,具有良好地通用性和可扩展性。
Introduced ARINC429 serial bus digital information transmission specifications and working methods. Combined with the application of EXC-2000 type 429 card in a navigation posture test system, the corresponding hardware interface design and software implementation are given. The system is capable of real-time high-speed navigation system to collect the heading angle, roll angle and pitch angle navigation attitude information, and calculate the corresponding mean and variance displayed in the test interface. The experiment proves that the system can be widely used in the field of high speed data acquisition with ARINC429 bus protocol output and has good versatility and scalability.