鏈環總線 的英文怎麼說

中文拼音 [liànhuánzǒngxiàn]
鏈環總線 英文
busing daisy chair
  • 鏈 : Ⅰ名詞1. （鏈子） chain Ⅱ動詞（用鏈栓住） chain; enchain Ⅲ量詞（計量海洋上距離的長度單位） cable length
  • 環 : Ⅰ名詞1 （環子） ring; hoop 2 （環節） link 3 （姓氏） a surname Ⅱ動詞（圍繞） surround; encircle;...
  • 總 : Ⅰ動詞（總括; 匯集） assemble; gather; put together; sum up Ⅱ形容詞1 （全部的; 全面的） general; o...
  • 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...
  1. This thesis has introduced the development of the traditional wireless sensor network and current situation at first, then analyzed the principle an framework of the wireless sensor network, and the challenge to the traditional wireless sensor network technology for environmental monitoring, put forward the novel environmental monitoring system based on wireless sensor network technology, have recommended a kind of brand - new wireless node design plan of framework of wireless sensor network and node hardware to be designed and realized, then based on ieee 802. 15. 4 standard, this thesis analysed the design faces the wireless communication protocol stack used in environmental monitoring, have introduced the realize of physics layer, data chain layer, network layer, application layer. have solved the wireless sensor network data sampling, systematic energy - conservation optimize, this thesis summarized the preceding work finally, have looked forward to the development, application and commoditization in the future

    本文首先介紹了傳統無線傳感器網路的發展概況及現狀，然後分析了無線傳感器網路的原理與架構及其在環境監測對傳統無線傳感器網路技術的挑戰，接著本文提出了新穎的基於無線傳感器網路技術的環境監測系統架構設計，介紹了一種針對大氣環境監測的全新的無線傳感器網路節點的構架設計方案以及節點的硬體設計和實現，然後本文以ieee802 . 15 . 4標準為基礎分析設計了面向環境監測應用的無線通信網路協議棧，從工程角度介紹了物理層、數據鏈路層、網路層、應用層的設計實現，解決了無線傳感器網路節點的數據採集、節點互聯以及系統節能優化等問題，最後本文總結了前面的工作，展望了基於無線傳感器網路技術的環境監測系統在未來的發展方向和應用方式等幾個方面的發展遠景。
  2. Aim at the dtc ' s blemish mentioned above and the direction of dtc technique development, the dissertation put great emphasis on the work as follows, with an eye to exalt dtc system function : ( 1 ) a new speed - flux observer of an induction motor is proposed to enhance the accuracy of flux observing, which is an adaptive closed - loop flux observer and different from the traditions. a new adaptive speed - observation - way is deduced out according to the popov ' s stability theories ; ( 2 ) to improve the performance of dtc at low speed operation, we have to exalt the accuracy of the stator flux estimation and a new way of bp neural network based on extended pidbp algorithm is given to estimate and tune the stator resistance of an induction motor to increase the accuracy of the stator flux estimation ; ( 3 ) digital signal processor is adopted to realize digital control. an device of direct torque control system is designed for experiment using tms320lf2407 chip produced by ti company ; ( 4 ) bring up a distributed direct torque control system based on sercos bus, sercos stand for serial real time communication system agreement which is most in keeping with synchronous with moderate motor control ; ( 5 ) the basic design frame of the hardware and software of the whole control system is given here and some concrete problem in the experiments is described here in detail

    針對上面提到的直接轉矩控制的缺陷和未來直接轉矩控制技術發展方向，本論文重點做了以下幾個方面的工作，目的在於提高dtc系統的綜合性能： （ 1 ）提出一種新型的速度磁鏈觀測器，新型的速度磁鏈觀測器採用自適應閉環磁鏈觀測器代替傳統的積分器從而提高磁鏈觀測的精度，並且根據popov超穩定性理論推導出轉速的新型自適應收斂律； （ 2 ）改善系統的低速運行性能，主要從提高低速時對定子磁鏈的估計精度入手，提出了一種提高定子磁鏈觀測精度的新思路? ?利用基於bp網路增廣pidbp學習演算法來實時在線地修正定子電阻參數； （ 3 ）採用數字信號處理器dsp實現系統全數字化硬體控制，結合ti公司生產的tms320lf2407晶元，設計了直接轉矩控制系統的實驗裝置； （ 4 ）提出了基於sercos總線網路化分散式的直接轉矩控制系統， sercos （ serialrealtimecommunicationsystem ）是目前最適合同步和協調控制的串列實時通信協議； （ 5 ）基本勾勒出整個控制系統的硬體和軟體設計基本框架，詳細描述一些實驗中的具體的細節問題。
  3. Also combining strategy management theory, this paper presents the analysis on both external environment ( including macroscopic environment, trade state, trade chance, challenges and prospect ) and internal conditions ( including resources, operation, competitive force ) on some qualitative and quantitative methods such as pest analysis, swot analysis, five - competitive force model, line chart model, value chain, etc. the conclusion is that external environment and the operative condition of donghua is well presently, it is competitive among competitors in this domestic field depending on its strong basement. but enterprise management upon the going one at the same time, there exists some defects such as the lack of market exploitation ability and human resource management, the jump to the track of information technology, the inchoateness of core competitive force, the lagging of financial management, the needing improve of enterprise culture and so on

    本文以武漢東環車身系統有限公司為研究對象，結合戰略管理理論，採用pest分析、 swot分析、五種競爭力模型、折線圖模型、價值鏈等定量與定性的方法對其外部環境（包括宏觀環境，行業狀況，行業機會、威脅及前景）和內部條件（包括資源，經營管理，競爭能力）進行了分析，總結出東環公司目前外部環境和經營狀況良好，自身擁有堅實的基礎，在國內同行中具有一定的競爭實力；但同時公司經營管理中存在著市場開拓能力差、與信息技術脫軌、核心競爭力尚未形成、人力資源管理缺乏、財務管理體系滯后、企業文化急待改進等問題。
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