【摘要】：在控制器局域網(wǎng)(CAN)消息集固定優(yōu)先級非搶占式調(diào)度(FPNS)的研究中,現(xiàn)有的CAN報(bào)文的最差響應(yīng)時(shí)間(WCRT)分析方法會(huì)對某些消息集的可調(diào)度性做出錯(cuò)誤判斷。為此,本文根據(jù)CAN消息FPNS的報(bào)文忙期的定義重新分析了報(bào)文首次與其余各次進(jìn)入相關(guān)節(jié)點(diǎn)的發(fā)送隊(duì)列的情況,修正了其響應(yīng)時(shí)間的最差假設(shè)。根據(jù)該最差假設(shè)所計(jì)算的WCRT修正了傳統(tǒng)的WCRT分析方法的過優(yōu)估計(jì),消除了修正的WCRT分析方法引入的過差估計(jì)。
[Abstract]:In the research of fixed priority non-preemptive scheduling (FPNS) in (CAN) message set of controller local area network, the worst response time (WCRT) analysis method of existing CAN packets will make a wrong judgment on the schedulability of some message sets. Therefore, according to the definition of the busy period of CAN message FPNS, this paper reanalyzes the case of the first time and the other times entering the relevant node's sending queue, and corrects its worst hypothesis of response time. According to the worst assumption, the WCRT is used to correct the over-optimal estimation of the traditional WCRT analysis method, and the over-difference estimation introduced by the modified WCRT analysis method is eliminated.
【作者單位】： 吉林大學(xué)計(jì)算機(jī)科學(xué)與技術(shù)學(xué)院;吉林大學(xué)汽車動(dòng)態(tài)模擬國家重點(diǎn)實(shí)驗(yàn)室;吉林省電力有限公司信息通信公司;
【基金】：國家重大科技專項(xiàng)項(xiàng)目(2009ZX01038-002-001) 國家自然科學(xué)基金項(xiàng)目(61034001)
【分類號】：TP393.1;TP273
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本文編號：2419870