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在飞行试验中,采集ARINC429总线数据时,如何高效实时检索数据字极其重要。基于传统的检索方法,循环查找法和查表法,本文提出了一种基于Hash算法的数据检索方法,详细论述了该方法实现ARINC429总线数据字检索的具体内容和步骤。该方法直接应用到了ARINC429总线采集模块研制中。经飞行试验验证,得到了良好的运行效果。同时,该方法也适用于其它此类总线的实时数据检索。
In flight tests, it is extremely important how to efficiently retrieve data words in real time when collecting ARINC429 bus data. Based on the traditional search method, round-robin search method and look-up table method, this paper presents a data retrieval method based on Hash algorithm, and discusses in detail the specific content and steps of this method to achieve ARINC429 bus data word retrieval. The method is directly applied to the ARINC429 bus acquisition module development. After flight test verification, got good running effect. At the same time, this method is also suitable for real-time data retrieval of other such buses.