通訊棧 的英文怎麼說
中文拼音 [tōngxùnzhàn]
通訊棧
英文
communication stack-
To oversee all the details yourself in person ; to be at once pilot and captain, and owner and underwriter ; to buy and sell and keep the accounts ; to read every letter received, and write or read every letter sent ; to superintend the discharge of imports night and day ; to be upon many parts of the coast almost at the same time ? often the richest freight will be discharged upon a jersey shore ; ? to be your own telegraph, unweariedly sweeping the horizon, speaking all passing vessels bound coastwise ; to keep up a steady despatch of commodities, for the supply of such a distant and exorbitant market ; to keep yourself informed of the state of the markets, prospects of war and peace everywhere, and anticipate the tendencies of trade and civilization ? taking advantage of the results of all exploring expeditions, using new passages and all improvements in navigation ; ? charts to be studied, the position of reefs and new lights and buoys to be ascertained, and ever, and ever, the logarithmic tables to be corrected, for by the error of some calculator the vessel often splits upon a rock that should have reached a friendly pier ? there is the untold fate of la prouse ; ? universal science to be kept pace with, studying the lives of all great discoverers and navigators, great adventurers and merchants, from hanno and the phoenicians down to our day ; in fine, account of stock to be taken from time to time, to know how you stand
親自照顧一切大小事務；兼任領航員與船長，業主與保險商；買進賣出又記賬；收到的信件每封都讀過，發出的信件每封都親自撰寫或審閱；日夜監督進口貨的卸落；幾乎在海岸上的許多地方，你都同時出現了似的； ? ?那裝貨最多的船總是在澤西岸上卸落的； ? ?自己還兼電報員，不知疲倦地發通訊到遠方去，和所有馳向海岸的船隻聯絡；穩當地售出貨物，供給遠方的一個無饜足的市場，既要熟悉行情，你還要明了各處的戰爭與和平的情況，預測貿易和文明的趨向； ? ?利用所有探險的成果，走最新的航道，利用一切航海技術上的進步； ? ?再要研究海圖，確定珊瑚礁和新的燈塔、浮標的位置，而航海圖表是永遠地改而又改，因為著計算上有了一點錯誤，船隻會沖撞在一塊巖石上而至於粉碎的，不然它早該到達了一個友好的碼頭了? ? ，此外，還有拉?貝魯斯的未知的命運； ? ?還得步步跟上字宙科學，要研究一切偉大的發現者、航海家、探險家和商人，從迦探險家飯能和腓尼基人直到現在所有這些人的一生，最後，時刻要記錄棧房中的貨物，你才知道自己處于什麼位置上。For this reason bridging the communications gap between serial - only devices to tcp / ip network hosts is a very important research topic. the thesis starts from the three research methods about gateway equipment, talks about the each characteristics, finally brings forward the material method how to implement the tcp / ip stack on the 51 mcu. at the same time, it uses the format of the callback function implementing the application layer protocol facing industrial real - time communication ( modbus protocol )
論文從目前國內主要的三種關于網關設備的研究方法談起，討論了各個方法的特點，提出了在常規的51單片機硬體上實現簡化的tcp / ip協議棧設計方法和具體實現，並利用回調函數的形式實現了面向工業實時通訊的應用層協議（ modbus協議） 。The high - level framework divides, as shown on the right, the solution stack into mobile middleware, internet protocol suite, operating system, and computing and communication hardware
該高層框架將解決方案棧分為，移動中間件，網際網路協議簇，操作系統，和計算和通訊硬體。Then, it analyzed can and canopen application layer, including : real - time characteristics of can, the core of canopen - od, all kinds of communication objects, the allocation of cob - id and some device profiles. and xcanopen was brought forward for implementing of canopen in power line communication. then, on the reference design platform of freescale - agilent, xcanopen ’ s two standard software interfaces, bottom driver and function of communication and network management based on canopen were implemented
本文詳細分析了低壓電力線通信數據機的結構與工作原理;分析了can協議及其可以保證數據實時可靠傳輸的實質，剖析了應用層協議canopen ，著重解釋了canopen的核心?對象字典od 、各類通訊對象、標識符的分配，以及一些設備子協議（ deviceprofiles ） ，並提出了在電力線通信上實現canopen的解決方案? xcanopen框架;在基於freescale - agilent電力線通信的參考設計平臺上實現了xcanopen的兩個標準軟體介面，電力線通信底層驅動軟體的設計以及基於canopen協議棧的節點通信和網路管理功能，達到了使用canopen協議來實現電力線通信的標準化模塊的目的;最後，在canopen數據通信的實時調度上做了進一步的改進探索研究。分享友人