航天控制
航天控製
항천공제
AEROSPACE CONTROL
2010年
1期
74-77,85
,共5页
电子水平状态指示仪%消息模型%多线程%同步机制%互斥锁
電子水平狀態指示儀%消息模型%多線程%同步機製%互斥鎖
전자수평상태지시의%소식모형%다선정%동보궤제%호척쇄
Message model%Multithreading%Synchronization mechanism%Mutex lock
针对液晶式电子水平状态指示仪应用时图形显示速度慢的问题,提出基于嵌入式Linux实时系统的软件设计方案.消息处理方式是该方案的关键,经过分析,采用多线程技术建立消息模型,通过互斥锁机制实现同步,并给出了具体的实现过程.对软件运行结果进行详细分析,软件在显示速度和显示质量方面均能达到较好效果,能够满足设计需求.
針對液晶式電子水平狀態指示儀應用時圖形顯示速度慢的問題,提齣基于嵌入式Linux實時繫統的軟件設計方案.消息處理方式是該方案的關鍵,經過分析,採用多線程技術建立消息模型,通過互斥鎖機製實現同步,併給齣瞭具體的實現過程.對軟件運行結果進行詳細分析,軟件在顯示速度和顯示質量方麵均能達到較好效果,能夠滿足設計需求.
침대액정식전자수평상태지시의응용시도형현시속도만적문제,제출기우감입식Linux실시계통적연건설계방안.소식처리방식시해방안적관건,경과분석,채용다선정기술건립소식모형,통과호척쇄궤제실현동보,병급출료구체적실현과정.대연건운행결과진행상세분석,연건재현시속도화현시질량방면균능체도교호효과,능구만족설계수구.
On the basis of embedded real-time linux operating system, an electronic horizontal situation in-dicator (EHSI) software in aircraft cockpit is designed to solve the problems of lag in graphics display, which can be deployed in the systems of LCD EHSI. The key to the project is the means of message process-ing. The message model is designed by multithreading and the synchronization mechanism is realized by mutex lock. The processing of message transmission is introduced and running results are analyzed at length. Both display rate and presentation quality of the software is achieved and promoted, and also the design requirements is fulfilled.
