數字干線網 的英文怎麼說

中文拼音 [shǔzìgānxiànwǎng]
數字干線網 英文
digital main network
  • 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 ...
  • 干 : 干Ⅰ名詞1 （事物的主體或 重要部分） trunk; main part 2 （幹部的簡稱） short for cadre Ⅱ動詞1 （做...
  • 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...
  • 網 : Ⅰ名詞1 （捕魚捉鳥的器具） net 2 （像網的東西） thing which looks like a net 3 （像網一樣的組織或...
  • 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
  1. Through analysising the characteristics of the power system with floating neutral point deeply, the paper puts forward a new plan of single - phase to ground fault line selection on the base of s ' s signal injecton method and gives the hardware and software design. in this design, the high speed sampling and data processing is carried out through using dsp processor ; the large electrice current is drived through the application of a high - performance audio power amplifier and transformer ; the communication between host computer and detectors is realized through rs485 bus technology ; the difference multilevel frequency - selected amplifier is designed and the feeble signal of space is sampled on the base of the theory of magnetic induction ; the interface between dsp and exterior chip and rs485 interface logical is designed through using fpga ; the using of lcd module and keyboard interfacing chip makes the interface between human and machine ; the programme of host computer and detectors is designed through using blocking design method

    在本設計中，採用高速的dsp處理器，實現了對故障特徵信息的高速採集與處理;採用大功率的功放晶元與變壓器配合的方法，實現了大電流信號的驅動輸出;採用485總線技術，組建了裝置主機與多探測器之間的主從式通訊網路，實現了多干擾條件下裝置主機與多探測器的可靠通訊;設計了差分式多級選頻放大電路，採用磁感應的方法實現了對空間微弱信號的接收;利用fpga技術，實現了控制器與多外設的介面及數字信號的串並轉換;採用了先進的lcd液晶顯示模塊及鍵盤介面晶元，設計了人機信息交互的介面;採用了模塊化的軟體設計方法，開發了裝置主機及探測器的軟體程序。
  2. Based on overall and detailed analysis of developing tendency and reliability, systematical discussion to the remote monitoring system, this dissertation focuses on the research of remote monitoring system. it gives a method to constitute remote monitoring system, which is on the base of controller area network ( can ), and its hardcore is digital signal processing ( dsp ). the choosing of the method, the realization of hardware and software, the reliability and anti - jamming characteristic of the whole system, and fault diagnosis are also proposed

    在全面、細致地分析了遠程監控系統的發展趨勢、可靠性的基礎上，根據遠程監控的特點及發展趨勢，提出了一種以數字信號處理器（ digitalsignalprocessing ，簡稱dsp ）為核心，以控制器局部網（ can - controllerareanetwork ）現場總線為基礎組建遠程監控系統的方案，並對該方案的選取、系統各部分的硬體和軟體實現、整個系統的可靠性、抗干擾性以及設備故障診斷等問題進行了系統、深入的研究。
  3. Fieldbus builds up interconnections among field instruments and field control units by providing a wholly digital, bi - directional and multi - variant communication path, which has no i only greatly improved the reliability and ability of anti - disturbance, but also sharply reduces the costs of installation and routine maintenance. can ( controller area bus ) belongs to the asynchronous communication network

    現場總線使得現場儀表之間、現場儀表與控制設備之間構成網路互連系統，實現全數字化、雙向、多變量的數字通訊，這大大地提高了系統的可靠性和抗干擾能力，同時節省了整個系統的投資、安裝及後期維護費用。
  4. At the same time, the performance and the security problems appear and cannot be ignored. so it ' s urgent to build a management system that can manage the analogous devices and digital devices together and can correspond with the catv trunk network management system. to meet the need analyzed above, we recommend using snmp to build the broadband hfc access network management system

    為了保障網路高效安全地運營，寬帶hfc接入網需要一套網管系統；為了與現代有線電視網路的干線網管系統相協調，寬帶hfc接入網需要一套標準的網管系統；為了能同時支持模擬業務和數字業務的管理，寬帶hfc接入網需要一套能同時管理模擬設備和數字設備的標準的網管系統。
  5. The controller takes full advantage of the features of ti tms3201f240xa processor, such as high performance processing capabilities, plenty of peripherals on chip and high real time control. by the vital of these features the fast ac sampling, synchronic pulse, digital shift phase trigger pulse, can bus communication, pid control method and excitation limitations are realized. the pretreatment of the switch signals and the test of the shift phase trigger pulses are realized by using the complex programmable device ( cpld )

    該勵磁控制器充分發揮了tms3201f240xadsp處理器的強大的數據運算能力、豐富的片內外設資源和較強實時控制能力，用單片系統結構實現了快速交流采樣，數字同步脈沖形成， can現場總線網路、以及pid控制演算法和各種勵磁限制等功能；用cpld器件實現了開關量抖動預處理和可控硅觸發脈沖遺漏的檢測，減輕了dsp處理器負擔，提高了勵磁控制器可靠性、抗干擾能力和控制能力；使用vc + + 6 . 0開發的基於windows操作系統的勵磁系統調試軟體，人機界面簡潔友好，使用操作靈活方便。
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