嵌入式机载综合信息处理系统软件设计

Embedded Airborne Integrated Information Processing System Software Design

为有效降低飞行员在飞行任务中的多任务并行处理时的繁重精神和工作负担,研究了机载嵌入式综合信息处理系统软件设计,包括数据处理及显示部分。态势处理软件采用了消息队列的方式,合理分配了各任务的优先级。采用了看门狗机制,增加了机载信息处理系统软件的自适应重启功能。数据显示软件采用了类的思想对界面进行了设计。使飞行员直观、方便地对接收到的信息进行观察、处理,与地面通信站或其它平台进行有效交流,及数据共享。设计的嵌入式系统软件已成功运行于VxWorks平台上,并在机载信息处理系统中稳定、可靠地工作。软件平均失效时间MTTF超过1 000h。

In order to effectively reduce the heavy mental workload and the workload of pilots in flight tasks,the airborne integrated information processing system software design is researched,including the data processing and display,which can effectively reduce the financial burden on the pilots.The message queue is used.Then the priorities of each task are allocated and the watchdog mechanism are used which can automatically restart equipment if necessary.The class to design the software is used.Then the pilots can easily observe and deal with the received message,communicate with the land station and other planes.The embedded system software has been successfully run on the VxWorks platform,and has been working stably and reliably in the airborne information processing system.The mean time to failure is over 1 000 hours.