Abstract: In order to cope with distributed display,race condition and failure detection issues of Cockpit Display System(CDS),this paper analyzes the ARINC661 specification,and on this basis proposes a distributed avionic display and control system scheme by integrating the network deduction algorithm and failure detection algorithm.The scheme implements data synchronization between display and control units by designing a resource pool for graphics widgets.Then the data recording race condition algorithm and the failure detection algorithm for display and control management are used to ensure the system reliability.Experimental results show that the proposed design scheme can effectively solve the problems of distributed display and system reliability of CDS.It also can meet the failure detection requirements of avionic distributed display and control in scenarios of different severity levels.

Key words: distributed display and control, ARINC661 specification, network deduction, race condition, failure detection

摘要： 为解决航电座舱显控系统（CDS）分布式显示、竞争条件和失效检测问题，分析ARINC661规范并结合网络推演算法和失效检测算法，提出一种航电分布式显控设计方案。通过对图形控件进行资源池化设计实现显控数据同步，并利用数据记忆竞争条件算法和显控管理失效检测算法保证系统可靠性。实验结果表明，该设计方案能有效解决CDS分布式显示和可靠性问题，并且满足航电分布式显控在不同严酷等级应用场景下的失效检测需求。

关键词: 分布式显控, ARINC661规范, 网络推演, 竞争条件, 失效检测

CLC Number: 

• TP311