移動裝備對遠(yuǎn)程監(jiān)控要求越來越多，監(jiān)控系統(tǒng)具有的多任務(wù)特性越來越明顯。多任
務(wù)與系統(tǒng)運(yùn)行穩(wěn)定性之間存在一定矛盾，通過對移動裝備遠(yuǎn)程監(jiān)控系統(tǒng)的多任務(wù)分析，確立了基于任務(wù)優(yōu)先級的調(diào)度機(jī)制。該文采用ARM 處理器和實(shí)時(shí)操作系統(tǒng)μC/OS-Ⅱ進(jìn)行了對移動裝備的多任務(wù)遠(yuǎn)程監(jiān)控系統(tǒng)的設(shè)計(jì)和開發(fā)。為了避免系統(tǒng)因任務(wù)進(jìn)程之間出現(xiàn)死鎖或其它原因而無法運(yùn)行，采用硬件看門狗對系統(tǒng)進(jìn)行復(fù)位處理。
關(guān)鍵詞: ARM；μC/OS-Ⅱ；全球定位系統(tǒng)；通用分組無線業(yè)務(wù)
Abstract: Motional equipment requires more and more in remote monitoring, the system’s
characteristic of multi-task becomes more obviously. There is some contradiction between
multi-task and the running stability of system. Through doing a task analysis for the remote
monitoring system, the schedule mechanism is established based on the priority of task. This paper designs a multi-task remote monitoring system of motional equipment based on ARM processor and μC/OS-Ⅱ. In order to avoid the system’s operation failing, the system would be reset via hardware watchdog.
Key words: ARM；μC/OS-Ⅱ；GPS；GPRS