數字通信線路 的英文怎麼說

中文拼音 [shǔzìtōngxìnxiànlù]
數字通信線路 英文
digital line
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 字 : Ⅰ名詞1 （文字） character; word 2 （字音） pronunciation 3 （字體） form of a written or printed ...
  • 通 : 通量詞（用於動作）
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  • 路 : 1 （道路） road; way; path 2 （路程） journey; distance 3 （途徑; 門路） way; means 4 （條理） se...
  • 數字 : 1. （表示數目的文字; 表示數目的符號） figure; digit; numeral; character; numeric character 2. （數量） quantity; amount
  • 通信 : communication; communicate by letter; correspond
  • 線路 : 1. [電學] circuit; line 2. [交通運輸] line; route
  1. Fieldbus is a kind of communication network which is a whole digitial communication multi _ embranchment data bus between intelligential field device and auto _ system. control system based on pcs ( fieldbus control system ) is a new kind of system which connect field control unit, field monitor unit, operation unit, communication interface uint with databus. lt integrates computer technology, communication technology and process cnotrol technology to adjust to demand of high standard productive control and enterprise management. lt developments and follows the advantage of traditional instrument control system and computer central control system and make up for their disadvantage so that it is applied in different industrial cnotrol area

    現場總線是連接智能現場設備和自動化系統的數字式、雙向傳輸、多分支的通信網路。它是一種能支持雙向、多節點、總線式的全數字通信網路。基於現場總線技術的控制系統是一種新型的控制系統，它採用總線方式將現場控制單元、現場監視單元、操作站、通信介面單元連接起來，綜合了計算機技術、通信技術和過程式控制制技術，以適應現代高水平生產控制與企業管理的需要。
  2. Digital intermediate frequency system is one of the hotspots in radio communication and military research, it provided a superexcellent way for high - speed double direction digital communication

    數字中頻系統是當前軍事與移動通信領域的研究熱點之一，它為高速雙向無線數據通信提供了思路與方案[ 1 ] 。
  3. This project focus on r & d of remote information transfer between some device, especially in the water - quality monitoring system. after learning the architecture of the popular pstn dial - up network. vpn broadband network and gsm wireless network, a new solution for remote communication was proposed. under this idea frame a communication hardware platform and software was developed

    本課題主要針對環境水質在線監控系統中的信息傳輸問題，對遠距離設備之間的信息傳輸方式及發展進行了研究，結合目前流行的pstn撥號上網方式、 vpn組網技術和gsm無線數字通訊技術，提出了一種新型的遠程設備之間信息傳輸與互聯的方案，並按照這個思路搭建出系統所需的硬體平臺，設計出實現這個方案的應用程序。
  4. Fully considering the system ' s reliabilty, being real - time, speed and extensibility, it finally chooses the sdh as the system network of cors through deep compration and alalysis of four special data lines supplied by china telecom, so that an effective interconnection among the stations and the workstations in the control - center comes true

    摘要充分考慮系統可靠性、實時性、通信速率、可擴充性等因素，通過對中國電信提供的4種數據專線服務的綜合分析比較，選擇了同步數字體系作為系統通信網路，實現了控制中心各工作站和各基準站之間的高速互聯。
  5. It ' s well known that the project documentations " storage and management have an very important effect on the development of all kinds of project, and as the information age is coming, network technology has been applied to this procedure gradually. this article mainly introduces the study and realization of a internet - based project documentation storage and management system which application programming frame is built with delphi6. 0 and sql server2000. based on the tcp / ip protocol, the system try to establish a c / s model with connection - oriented, dependable stream sockets and multithread technology to complete some especial data communications by networks, such as the files of project, directory of user, all self - defined commands or messages and their parameters, and so on

    本文所研究的《基於internet的項目文檔存儲管理系統》通過delphi6 . 0和visualc + + 6 . 0相結合的開發平臺，結合sqlserver2000 ，將client server模式的數據庫技術和windowssocket網路通信技術進行集成，遵循tcp ip協議，同樣採用c s結構運行於internet ，通過服務器將處于各個不同物理位置的客戶機連接起來，形成一個交流平臺；其中，引入了目前國際上流行的先進的安全管理控制方法? ?角色控制理論對用戶進行權限分配，使擁有相應角色的人具有相應權限；然後系統自動根據組織部門或用戶的設立在服務器端生成相應的網路「虛擬文件櫃」 ，使擁有相應權限的人可以對相應文件櫃中的文檔進行整理；再通過多線程技術和windows套接字通信機制在tcp ip協議上實現了單個文件及目錄的傳輸。
  6. Considering the requirement of communication network, a local area computer communication system of plc based on usb interface was given after analyzing the application model of plc. then after theoretical analysis and digital simulation, the plc modem and the computer interface models were designed. the design of software about the two models was also finished

    本文首先介紹了電力線通信技術在國內外的研究概況，分析了電力線載波通道的傳輸特性，討論了適合於電力線通信的擴頻載波通信方式，然後結合通信網路的要求，在分析電力線通信應用模式的基礎上，提出了一種基於usb介面的室內計算機電力線通信方案，進行了理論上的分析和數字模擬，設計了電力線modem模塊和計算機介面模塊，編制了相應的軟體程序，並對軟體進行了測試分析。
  7. The long - awaited day of fast, cheap bandwidth to the home and small office appears to be just around the corner as phone companies and cable companies scramble to deliver high - speed, low - cost telecommunications, running any of a slew of digital subscriber link ( dsl ) technologies and fiber / coaxial cable hybrids up to your front door

    人們等待已久的、快速廉價的帶寬線路接進家庭和小型辦公室的日子，看來為期不遠了，因為電話公司和有線電視公司爭相要把高速、低價的通信線路送到你的大門上，這些線路採用數字用戶線（ dsl ）技術中的任何一種和光纜/同軸電纜混合線路的形式。
  8. Connectors for electronic equipment - tests and measurements - part 14 - 6 : sealing tests - test 14f : interfacial sealing iec 60512 - 14 - 6 : 2006 ; german version en 60512 - 14 - 6 : 2006

    測量和控制數字數據通信工業控制系統用現場總線類型3 ： profibus規范第4部分：數據鏈路層協議規范
  9. With the use of new mcu p87c591, as the techiniques of serial communication and negative display of lcd, the dashboard has a very beautiful apearence and the system is simplified. not only the analogy signal and the pulse signal can be sampled into the instrument, but also the datum on the can - bus should be transferred into the system whit the connection to the in - vechile network. under the guindance of the idea of " informatic design ", the digital lcd dashboard system is developed, and the professional manufacturer of lcd display device is directed to develop and to design the special lcd module, by which the new lcd production is greatly optimized. all these intentions bing about a very well goal

    在研製數字液晶儀表過程中，應用了新型單片機p87c591 、串口驅動技術和負顯技術，使該數字液晶組合儀表結構簡單，視覺美觀，既可以通過模擬通道、數字通道測量車輛傳感器的信號，又具備接入車輛總線、從can總線上獲得相關數據的能力。在項目開發過程中，運用「信息化設計」的觀點開展液晶顯示模塊的開發和設計工作；並根據軟體工程的原則，優化了液晶模塊的電路設計，使該項產品的開發取得了好的效果。
  10. Electrical and mechanical interface characteristics and line control protocol using communication control characters for serial data link between a direct numerical control system and numerical control equipment employing asynchronous full duplex transmission

    電子和機械界面特性和在直接數字控制系統與用同步完全雙向傳輸的數字控制設備之間的系列數據鏈接的通信控制字元的線路控制協議
  11. On the basis of confirming the plan of the whole design, the technique of modern digital communication, computer and electronic technique are supplied to design the hardware of the large - scale telephone line expander and program the software, also the debugged and the tested experiment are done

    在確定總體設計方案的基礎上，本文採用現代數字通信技術、計算機技術、電子技術研製了大規模電話線路擴容器的硬體，編制了相應的運行軟體，並進行了調試和試運行試驗。
  12. Essential requirements for terminal equipment intended for connection to digital leased circuits of the public telecommunications network using a ccitt recommendation x. 21bis interface

    使用ccitt推薦標準x . 21bis規定的介面與公共通信網路數字租借線路終端設備相連接的基本要求
  13. The device can measure reactive parameters in distribution power net which are generally considered to he difficultly measured the paper also introduces the calculating method of the reactive compensation capacity and its optimal location, the design method and realization principle of the series devices, such as the reactive power acquisition device, the reactive power optimized controller and the compensation capacitor operator, is seated in detail through economic and technical comparison, a realistic hardware scheme of reactive power compensation system is proposed

    文章利用電磁感應原理和數字通訊技術結合試驗設計出電源自給式高壓線路無線信號採集裝置，解決了配電網分支線路無功參數不易測量的問題。文章還介紹了系統無功補償容量及安裝位置的計算方法，較為具體的講述了無功功率採集器、無功優化控制器以及補償電容操作器等一系列裝置的設計方法和製作原理。通過經濟技術比較提出了一整套切實可行的無功補償系統硬體製作方案。
  14. 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。
  15. Based on an analysis on the present situation and development of three kinds of signal systems ( the point system based on interrogator responsor, the quasi - moving block system based on digital track circuit and the moving block system based on wireless data transmission ) in urban rail transit, some suggestions on the localization of signal system of urban rail transit are put forward

    摘要在分析三種城市軌道交通信號系統制式（基於查詢應答器的點式系統、基於數字軌道電路的?移動閉塞和基於無線數據傳輸的移動閉塞）的現狀和發展基礎上，對實現我國城市軌道交通信號系統國產化提出建議。
  16. Suitable for the microwave equipment and body of the digital communication system and join the body in the cable or the micro - strip line frequently in the loop frequently

    適用於微波設備和數字通信系統的射頻迴路中連接射頻電纜或微帶線。
  17. Multi - element metallic cables used in analogue and digital communication and control - sectional specification for unscreened cables - work area and patch cord cables

    模擬和數字通信及控制中使用的多元件金屬電纜.非屏蔽電纜分規范.工作區域和臨時線路的軟線電纜
  18. Multi - element metallic cables used in analogue and digital communication and control - part 3 - 2 : sectional specification for unscreened cables characterised up to 100 mhz - work area and patch cord cables

    用於模擬與數字通信和控制的多元件金屬電纜.第3 - 2部分: 100mhz及以下非屏蔽電纜分規范.工作區域和臨時線路軟線電纜
  19. Fieldbus is a digital, bi - directional, poly - branched communication network connecting field devices in automation control system

    現場總線是連接現場設備和自動化系統的數字式、雙向傳輸、多分支結構的通信網路。
  20. The present dissertation is based on an automation revamping project in which the latest fieldbus control system ( fcs ) and control network techniques of mitsubishi electric are adopted, in a paint - coating workshop of chang ' an automobile company, chongqing

    作為近年來國際上迅速發展起來的、備受關注的控制網路新技術，現場總線是一種應用於生產現場、在微機化測量控制設備之間實現開放式、雙向串列多節點數字通信的底層控制網路。
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