设计一种基于μC/OS-Ⅱ的车载监控终端系统.介绍以S3C44BOX为控制核心的硬件系统设计方案.在移植μC/OS-Ⅱ操作系统的基础上,对系统软件结构和应用层多任务、优先级进行了设计,重点介绍使用信号量、邮箱和事件标志组实现任务间通信和同步的方法.经过实验测试,系统运行稳定可靠,实现了对车辆实时监控.系统设计方法对嵌入式系统应用开发有一定的参考意义.%A vehicle terminal monitoring system based on μC/OS-Ⅱ is designed. In the paper we introduce the hardware design scheme which uses S3C44BOX as the control core. Based on transplanting μC/OS-Ⅱ operating system, we design the system software structure, and multitasks and priority of the application layer. The communication and synchronisation methods between tasks implemented with semaphores, mailboxes and event flags group are emphatically introduced. Tested through the experiments, the system runs stably and reliably, and achieves real-time vehicle monitoring. The system design method has reference significance for the development and application of embedded systems.
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