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基于VxWorks的網(wǎng)絡(luò )數據實(shí)時(shí)處理軟件的設計與實(shí)現
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中國飛行試驗研究院 測試所

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TP274

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Design and Implementation of Real-time Network Data Processing Software Based on VxWorks
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    摘要:

    機載實(shí)時(shí)數據處理可以大幅提高數據處理的效率。為滿(mǎn)足機載網(wǎng)絡(luò )化測試系統架構下的實(shí)時(shí)數據處理的需求,設計并實(shí)現了一種基于VxWorks的網(wǎng)絡(luò )數據實(shí)時(shí)處理軟件。該軟件運行在多核嵌入式數據處理系統上,通過(guò)多任務(wù)并發(fā)執行的方法保證實(shí)時(shí)性。軟件運行過(guò)程中利用零拷貝技術(shù)實(shí)時(shí)接收機載測試系統發(fā)送的網(wǎng)絡(luò )包數據,然后按照自定義的文件格式存儲原始數據,同時(shí)將需要處理的網(wǎng)絡(luò )包存入數據處理緩存中,根據網(wǎng)絡(luò )數據協(xié)議實(shí)時(shí)解析網(wǎng)絡(luò )包數據,最后利用預留緩存的辦法將處理結果寫(xiě)入結果文件。實(shí)踐證明,該軟件能快速接收并實(shí)時(shí)處理網(wǎng)絡(luò )數據,同時(shí)將原始數據和結果數據進(jìn)行存儲,該方法有效提高了數據處理的效率,為飛行試驗數據處理提供了新的途徑。

    Abstract:

    Airborne real-time data processing can greatly improve the efficiency of data processing. In order to meet the needs of real-time data processing under the airborne networked test system architecture, a real-time network data processing software based on VxWorks was designed and implemented. The software runs on a multi-core embedded data processing system and ensures real-time performance through the multi-task concurrent execution method. During the software running process, the zero-copy technology is used to receive the network packet data sent by the test system in real time, and then the original data is stored in a custom file format. At the same time, the network packets that need to be processed are stored in the data processing buffer. Parse the network packet data, and finally use the reserved cache method to write the processing result to the result file. Practice has proved that the software can quickly receive and process network data in real time, while storing raw data and result data. This method effectively improves the efficiency of data processing and provides a new way for flight test data processing.

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王灝,郝朝,張國旺.基于VxWorks的網(wǎng)絡(luò )數據實(shí)時(shí)處理軟件的設計與實(shí)現計算機測量與控制[J].,2020,28(3):174-177.

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  • 收稿日期:2019-12-12
  • 最后修改日期:2020-01-08
  • 錄用日期:2020-01-09
  • 在線(xiàn)發(fā)布日期: 2020-03-30
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