vxWorks下基于緩沖隊列的全雙工網(wǎng)絡(luò)通訊

文章針對半自動大型儀器使用半~K．．T--網(wǎng)絡(luò)通訊造成的效率下降問題，建立了在嵌入式實(shí)時操作系統(tǒng)vxWorks下全雙工網(wǎng)絡(luò)通訊的模式，并特別提出了雙緩沖隊列的流水線處理方法和通訊死時J"l的概念。該方法充分利用vxWorks對多任務(wù)和網(wǎng)絡(luò)的良好支持，做到了在操作人員層面上的軟件零死時間，在改善系統(tǒng)響應(yīng)特性，提高軟件效率上都很有幫助。因此比半雙工通訊方式更加適用于半自動控制。

Generally。half duplex net communication method decreases the eficiency of semiautomatic devices．To solve this problem，a mode of full duplex is developed，under the embedded RealTime Operating System vxWorks．Specially，the method 0f pipeline based on multi—bufering queues and the concept of communication dead—time are introduced．This
method makes the best of vxWorks's support on multi—tasks and network programming．It achieves near ~lt'O software
dead—time on ope rational level，improves the response characteristic，an d increases software eficiency．Comparing with half
duplex mod e，it is more applicable to semiautomatic contro1．