SpaceWire冗余網(wǎng)絡(luò )故障檢測恢復技術(shù)實(shí)現

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SpaceWire冗余網(wǎng)絡(luò )故障檢測恢復技術(shù)實(shí)現
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作者單位:北京航空航天大學(xué) 儀器科學(xué)與光電工程學(xué)院,北京航空航天大學(xué) 儀器科學(xué)與光電工程學(xué)院,北京航空航天大學(xué) 儀器科學(xué)與光電工程學(xué)院,北京航空航天大學(xué) 儀器科學(xué)與光電工程學(xué)院,北京航空航天大學(xué) 儀器科學(xué)與光電工程學(xué)院
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中圖分類(lèi)號:V443
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Implementation of Fault Detection and Recovery Technique in SpaceWire Redundant Network

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School of Instrumentation Science and Opto-electrionics Engineering,Beijing University of Aeronautics and Astronautics,,School of Instrumentation Science and Opto-electrionics Engineering,Beijing University of Aeronautics and Astronautics,School of Instrumentation Science and Opto-electrionics Engineering,Beijing University of Aeronautics and Astronautics,School of Instrumentation Science and Opto-electrionics Engineering,Beijing University of Aeronautics and Astronautics

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摘要:

為提高SapceWire網(wǎng)絡(luò )可靠性,基于SpaceWire-D提出了一種應用于SpaceWire冗余網(wǎng)絡(luò )的故障檢測恢復技術(shù)。網(wǎng)絡(luò )節點(diǎn)通過(guò)比較主、備份端口收到的時(shí)間碼來(lái)判斷鏈路故障狀態(tài),在確認主鏈路發(fā)生故障后,節點(diǎn)自動(dòng)啟用備份端口工作。通過(guò)引入時(shí)間碼抖動(dòng)容限參數,提高了節點(diǎn)對故障判斷的準確性,避免了故障誤判。測試結果表明,即使故障鏈路未與節點(diǎn)直接連接,節點(diǎn)也能夠在一個(gè)時(shí)間槽長(cháng)度內檢測到鏈路故障并自動(dòng)切換至備份鏈路。此技術(shù)保證了網(wǎng)絡(luò )故障情況下的數據正確傳輸,提高了SpaceWire網(wǎng)絡(luò )的可靠性,是一種穩定可靠的故障檢測恢復技術(shù)。

Abstract:

A fault detection and recovery method based on SpaceWire-D for SpaceWire redundant network was proposed to improve the reliability of SpaceWire network. In the method, nodes detect link fault through comparing Time-Codes received from primary and redundant link, and enable redundant link automatically after confirming the fault of primary link. By introducing Time-Code jitter tolerance parameter, the fault detection accuracy is improved and the fault misjudgement is avoided. The experiment result shows that each node can detect link fault and switch to redundant link automatically within one Time-Slot, even the faulty link was not connected to the node directly. Therefore, the proposed method can ensure the data transmission when link faults occur, and improve the reliability of the SpaceWire network.

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曾華菘,張春熹,伊小素,陶聰凌,劉文莉. SpaceWire冗余網(wǎng)絡(luò )故障檢測恢復技術(shù)實(shí)現計算機測量與控制[J].,2016,24(8):12.

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收稿日期:2016-03-02
最后修改日期:2016-03-02
錄用日期:2016-03-24
在線(xiàn)發(fā)布日期: 2016-08-18
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