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嵌入式新型機載實(shí)時(shí)數據處理系統的設計與實(shí)現
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中國飛行試驗研究院,中國飛行試驗研究院,中國飛行試驗研究院

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Design and implementation of a new embedded airborne real-time data processing system
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China Flight Test Establishment,China Flight Test Establishment

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    摘要:

    為滿(mǎn)足C919機上實(shí)時(shí)監控要求以及對試飛結果數據快速獲取的迫切需求,針對現今機載網(wǎng)絡(luò )數據包大流量、高速率的特點(diǎn),通過(guò)對傳統應用模式和系統結構的分析,指出傳統機載實(shí)時(shí)數據處理系統在功能和性能上的不足,并提出了一種基于嵌入式結構、具有實(shí)時(shí)監控和重要參數快速處理復合功能的新型機載實(shí)時(shí)數據處理系統設計方法。相比基于工控機的系統結構,采用嵌入式結構和實(shí)時(shí)操作系統工作模式可極大提高系統多任務(wù)實(shí)時(shí)數據處理能力。同時(shí),在系統中增加對重要參數在線(xiàn)處理和結果數據存儲功能,可使試飛工程師在任務(wù)結束后的便可拿到結果數據,以解決以往地面數據處理等待時(shí)間長(cháng)的難題。實(shí)際應用表明,新型系統很好滿(mǎn)足了C919型號任務(wù)需求,可顯著(zhù)加快試飛決策和提高試飛效率。該設計方法也可為其它機載實(shí)時(shí)數據處理系統的設計提供方法借鑒。

    Abstract:

    Aiming at the requirement of real-time monitoring and the urgent need for the rapid acquisition of results during the flight test of C919, in view of the characteristics of high flow and high rate of today's airborne network data packets , on the analysis of traditional application patterns and system structures ,the shortcomings of the traditional airborne real-time data processing system in function and performance are pointed out and a new design method of airborne real-time data processing system based on embedded structure, real-time monitoring to process complex functions quickly is put forward. Compared with the system based on IPC, embedded structure and real-time operation system can greatly improve the system's multitask real-time data processing capability.At the same time, the online processing of important parameters and the storage of result data are added in the system, which makes the test engineer get the result data after the task immediately , so as to solve the problem of long waiting time for ground data processing. The practice shows that the new system meets the requirements of the C919’s test, and can significantly accelerate the flight test decision and improve the efficiency of the flight test. This method provides a reference for the design of other airborne real-time data processing systems.

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祁春,聶瑤佳,周訓強.嵌入式新型機載實(shí)時(shí)數據處理系統的設計與實(shí)現計算機測量與控制[J].,2018,26(3):208-211.

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  • 收稿日期:2017-11-06
  • 最后修改日期:2017-12-10
  • 錄用日期:2017-12-11
  • 在線(xiàn)發(fā)布日期: 2018-03-29
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