線路集中單元 的英文怎麼說

中文拼音 [xiànzhōngdānyuán]
線路集中單元 英文
line concentrating unit
  • : 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 (道路) road; way; path 2 (路程) journey; distance 3 (途徑; 門路) way; means 4 (條理) se...
  • : gatherassemblecollect
  • 線路 : 1. [電學] circuit; line 2. [交通運輸] line; route
  • 集中 : concentratecentralizefocusamassgroupmassingput togather
  1. The development of fieldbus technology made lonworks field bus outstanding in all kinds of fieldbus. this paper simply introduces some kinds of common using fieldbus and the important position and influence of lonworks fieldbus in all kinds of fieldbus, carefully describes the technology core of lonworks technology, puts great emphasis on the introduction of the development and design of public security node of intelligent district which adopts computer, communication and control technology, carefully designs the interfaces of hardware circuits. the public security node of intelligent adopts 8031 single chip as its main processor to complete the application program of user, which mainly collects, process and control all kinds of field signal, and neuron chip 3150 as its slave processor to communicate with other nodes on field network, which works under parrel slave a mode

    現場總技術的發展使得lonworks技術脫穎而出,本文簡要介紹了常用的幾種現場總的概況以及lonworks技術在現場總技術的地位和影響,對lonworks技術的技術核心:神經、 lontalk協議、 lonworks收發器、 lonbuilder及nodebuilder進行詳盡的描述;重點介紹了先進的計算機技術、通信技術、控制技術為一體的智能小區安防節點的開發與研製,對節點硬體電的各種介面進行了詳盡的設計。本文設計的智能小區安防節點採用片機8031作為主處理器來完成用戶的應用程序,主要負責對各種現場信號進行採、處理及控制,工作在并行從a方式下的神經mc3150作為從處理器,主要完成與現場網上的各節點及心控制室之間的通信工作。
  2. Abstract : a cad tool based on a group of efficient algorithms to verify, design, and optimize power / ground networks for standard cell model is presented. nonlinear programming techniques, branch and bound algorithms and incomplete cholesky decomposition conjugate gradient method ( iccg ) are the three main parts of our work. users can choose nonlinear programming method or branch and bound algorithm to satisfy their different requirements of precision and speed. the experimental results prove that the algorithms can run very fast with lower wiring resources consumption. as a result, the cad tool based on these algorithms is able to cope with large - scale circuits

    文摘:介紹了一個基於標準布圖模式的電源/地的輔助設計成工具.它應用了一系列高效的演算法,為用戶提供了電源/地的設計、優化和驗證的功能.非性優化技術、分枝定界演算法和不完全喬萊斯基分解的預優共軛梯度法是該工作的三個主體部分.用戶可以選擇使用非性規劃的方法或者幾種分枝定界方法來滿足他們對于精度和速度方面的不同需求.實驗結果表明,文所提供的演算法可以在很快的運行速度下實現更低的布資源佔用.因此,在這些有效演算法基礎上實現的輔助設計工具具有處理大規模電的能力
  3. This thesis explains the necessity of the character recognition technology of the computer at first, describe the meaning in which the handwritten numeral discerns ; pretreatment technology of handwritten numeral recognition, including two value, line segmentation, word segmentation smooth, removing noising, standardization and thinning are discussed two value concretely discusses whole threshold value, some threshold value, dynamic threshold value and utilize space information to carry on threshold, which are several kinds of common method of choosing threshold value, especially utilize space information to carry on threshold value is describe in detail ; adopting to the foundation of thinning based on mathematics morphology, thinning algorithm of serials same and thinning algorithm of protecting shape are discussed ; afterwards, according to principle ' s diagram of the on - line character recognition, by analyzing the structure feature of the handwritten numeral, this thesis has proposed the online recognition te chnology of the free handwritten numeral based on the stroke feature and the online recognition technology of the free handwritten numeral based on the multistage classifying device. detail narrated noise removing, stroke characteristic definition and discernment, distance criterion of whole word match ; then under the foundation of handwritten numeral segmentation, off - line handwritten numeral recognition is researched. especially minimum distance classifying device, tree classifying device and adaptive resonance ( art ) network classifying device is discussed at the same time, believes degree analyses are introduced to integrate a lot of classifying devices ; at the end, the typical application of the handwritten numeral recognition was briefly narrated, its application in extensive data statistics, financial affairs, tax, finance and mail sorting have been explored

    二值化時對整體閾值二值化、局部閾值二值化、動態閾值二值化和利用空間信息進行閾值選取幾種常用的閾值選取方法進行討論,特別對利用空間信息進行閾值選取進行了詳細論述;在對通過對基於數學形態學的細化的基礎上,討論序貫同倫形態細化演算法和保形的快速形態細化演算法;然後依據聯機字識別原理框圖,分析了手寫數字的結構特點,提出了基於筆劃特徵的任意手寫數字在識別技術和基於多級分類器任意手寫數字在識別技術,對其涉及的筆劃識別前的噪聲處理、筆劃間特徵量的定義及識別、整字匹配的距離準則進行了詳細敘述;繼而在對手寫數字的分割的基礎下對脫機手寫數字識別進行了研究,對基於最小距離分類器字識別、基於樹分類器的字識別、基於自適應共振( art )網的字識別分別進行了詳細討論,並引入置信度分析將多個分類器進行了混合成;最後簡闡述了手寫數字識別的典型應用,對其在大規模數據統計、財務、稅務、金融及郵件分揀的應用進行了探索。
  4. It possesses not only the self - learning ability and adaptability, but also the function of self - adjusting factors. based on fuzzy set, neural network theory, the fuzzy control model and fuzzy neural network control model of multi variable system are presented. based on the automatic core - welding line of shop floor control system in yangzhou radiator plant computer integrated manufacturing system ( ys - cims / sfcs ), the fuzzy logic theory was applied to the controlling device and established the main heating room fuzzy temperature controller and finally was put into practical use

    本文採用了基於神經網技術的智能pid控制策略,設計了一類具有自學習和自調整比例因子功能的神經自適應pid控制器的結構及演算法;為解決結構不確定性的復雜多變量系統的控制,基於模糊及模糊系統、神經網理論,建立了多變量系統的模糊控制模型及模糊神經網控制模型;針對揚州水箱廠計算機成製造系統車間管理與控制系統( ys - cims sfcs )的實際工程問題,設計和開發了散熱器芯子烘焊自動主烘腔溫度模糊控制器,解決了生產長期存在的老大難問題,提高了產品質量,降低了產能耗。
  5. According to the request of this subject, we have developed the system hardware and software for the slave device and the inspection software running on the pc. in this paper all of the followings is illustrated detailedly, such as the research on the principles of measurement and its realization, three means of water - level measurement that are separately based on photo electricity coder, pressure sensor and potentiometer ; selection of the microchip, we choose an advanced integrated soc ( system on chip ) microchip c8051f021 as the main controller ; realization of signal sampling, processing and its conversion in the mcu ; application of high precision 16 bits adc cmos chip - - ad7705 in our system, designing its interface with the microchip and relevant program ; using a trickle charge timekeeping chip ds1302 in the system which can provide time norm and designing of its i / o interface and program ; additionally, a 4 ~ 20ma current output channel to provide system check - up using ad421. in the system, ad421, ad7705 and the microchip compose spi bus ; to communicate with the master pc, here we use two ways which are separately rs232 and rs485 ; moreover, there are alarm unit, keyboard unit, power supply inspection unit and voltage norm providing unit in the system

    針對研製任務的要求,課題期間研製了下位機系統硬體和軟體,開發了上位機監控軟體,其所作的具體工作包括:測量原理的研究和在系統的實現,在本次設計用三種方法來進行水位測量,分別是旋轉編碼器法、液位壓力傳感器法和可變電阻器法;主控晶的選擇,我們選用了高成度的混合信號系統級晶c8051f021 ;實現了信號的採和處理,包括信號的轉換和在片機內的運算;高成度16位模數轉換晶ad7705在系統的應用,我們完成了它與片機的介面設計及程序編制任務;精確時鐘晶ds1302在系統的應用,在此,我們實現了用片機的i o口與ds1302的連接和在軟體對時序的模擬,該晶的應用給整臺儀器提供了時間基準,方便了儀器的使用;另外,針對研製任務的要求,還給系統加上了一4 20ma模擬信號電流環的輸出電來提供系統監測,該部分的實現是通過採用ad421晶來完成的,本設計完成了ad421與片機的spi介面任務,協調了它與ad7705晶片機共同構成的spi總系統的關系,並完成了程序設計;與上位機的通信介面設計,該部分通過兩種方法實現: rs232通信方式和rs485通信方式;系統設計方面還包括報警電設計、操作鍵盤設計、電源監控電設計、電壓基準電的設計。
  6. According to the fact that power factor of low voltage power networks is very low in china and field bus technology is developing in the world, in order to enhance power factor of low voltage power networks, on the basis of central transmitting and controlling information among every compensation equipment, the author of this dissertation studies systematically the design principles of power factor dynamic compensation system. based on analyzing structure of control system at present, the author of the dissertation puts forward a distributed completely and multi - layer structure framework based on field bus technology and builds a power factor intelligent dynamic compensation system. the functions of compensation unit, intelligent node, host computer, are presented

    根據目前低壓電網用電負載功率因數偏低和國內外現場總技術的應用現狀,立足於提高交流電機的功率因數,基於將每個補償裝置進行監控、信息傳遞的思,本文作者在分析現有的控制系統體系結構的基礎上,提出了基於現場總技術的全分散式多層控制系統的體系結構,構建了功率因素智能動態補償系統;對補償執行子系統、智能節點子系統、上位機子系統三部分進行了功能分析。
  7. The paper discusses the work princinple of ldcsm, adopts singlechip as core control cell, puts forward two kinds of control schemes, analyzes and study the technique scheme, hardware and software design of each control system separately in detail, on the basis of the centralized winding electrifying trait and pulse stepping control method of two phase hybrid linear dc step motor ( hdclsm )

    論文在討論了直直流步進電動機工作機理的基礎上,根據兩相混合式直直流步進電動機( hdclsm )繞組的通電特點和脈沖步進控制方法,採用片機為核心控制,提出了兩種數字控制方案,分別就每種控制系統技術方案、硬體電、控制軟體設計等技術內容進行了詳細地分析和研究。
  8. The commonly used designing flow and basic technology of integrated circuit, such as the cell layout, synthesis, simulation, fpga verification, automatic layout & routing of the digital circuit, are introduced and analyzed in detail. the layout designing and simulation of the analog circuit are also introduced and analyzed in detail

    論文對成電常用設計流程和基本技術作了詳細介紹和分析,其包括數字電的基本版圖、綜合、模擬、 fpga驗證和自動布局布,也包括常用模擬電的版圖設計和模擬。
  9. Advanced fpga technology is introduced to improve the integration of digital circuits, and all digital circuits in the original module are integrated in the fpga chips, which could not only reduce the cost, but also improve the reliability and measurement precision of the circuits. high speed digital signal processor ( dsp ) is selected as the coprocessor instead of scm ; it can receive all kinds of commands sent from vxi, analyze and execute the commands, harmonize each section of the module and process the data. higher - conversion - speed comparator chip is adopted to convert the input signals being measured into square waveform signals which could be identified by fpga chip ; it can expand the measurement range of frequency dramatically

    本文在原有vxi總四通道計數器模塊的設計基礎上,通過對原模塊缺陷的分析,採用一些新的技術和新的電子器件來重新設計該計數器模塊:採用最新的fpga技術來提高數字電成度,將原模塊的所有數字電全部成在fpga晶,這樣不僅能節約成本,還能提高電的可靠性和測量精度;採用高速的數字信號處理器( dsp )取代原有的片機作為協處理器,來接收vxi發來的各種命令,分析命令、執行命令、協調模塊各部分的工作以及對數據的處理;採用轉換速率更高的比較器晶將輸入的被測信號轉換為fpga晶能夠識別的方波信號,能極大提高測量頻率的范圍;採用d / a轉換晶和隔離運算放大器得到隔離通道所需的比較電平,該比較電平值能夠根據實際需求進行設置,能增強模塊的使用靈活性。
  10. It has been playing an important role in equipping all kinds of arms and services for campaigns, tactical exercises and emergent actions etc. based on the detailed analysis of the exchange ' s architecture and implementing, this thesis points out some disadvantages of the device, such as too many absolute components, not very high enough reliability and security, very large size and weight, operating and maintaining difficultly. considering low power requirement and man - machine interface optimizing design at the same time, the thesis come up with an integrated design scheme to the previous device based on " mcu + cpld / fpga architecture " : ( 1 ) signal frequency dividing, timing frequency producing, 20 customers " led states controlling are implemented in cpld ; ( 2 ) decoding, latching data and controlling signals are implemented in cpld by bus interface between mcu and cpld ; ( 3 ) chip selecting principles and mcu idle mode design are completed under the consideration of low power requirement ; ( 4 ) operation by chinese lcd menus is adopted in the man - machine interface

    本項目以該交換機為研究對象,在詳細分析原設備的系統結構和功能實現方式的基礎上,指出該機型在使用過程存在技術相對陳舊、分立件過多、可靠性和保密性不夠、體積大、重量大、維修困難等問題,同時結合系統的低功耗需求和優化人機介面設計,本文提出基於「片機+ cpld fpga體系結構」的成化設計方案:在cpld實現信號音分頻和計時頻率生成電、 20用戶led狀態控制電; cpld與片機以總介面方式實現譯碼、數據和控制信號鎖存功能的vhdl設計;基於低功耗設計的器件選型方案和片機待機模式設計;人機介面的lcd菜操作方式。
  11. To date, most research on cmos rf circuits is focused on cmos rf front - end including some key building blocks such as low - noise amplifier ( lna ), mixer, bandpass filters, voltage control oscillators and power amplifiers. in si rf 1c, inductors need be realized on a silicon substrate along with all of the other devices in a single chip. in fact, the need for high q integrated inductors in rfics is increasing

    在無通信技術對cmos射頻成電需求的大背景下,本論文在大量深入調研的基礎上,圍繞射頻成電必不可少的、有多種應用的無源器件?硅成電感及其相關的cmos射頻,先後在上海冶金所微電子分部工藝上及利用上海市科委的多目標晶項目( mpw )在無錫華晶上華半導體有限公司進行了大量的實驗研究,得到了一些新的結果。
  12. Using the high - performance digital signal processor ( dsp ) as cpu, the author designs the medium - speed sampling and processing unit of the fault locator. on the one hand, this unit can sample voltages and currents of the line synchronously ; on the other hand, this unit can start the fault locator up and select the fault lines when faults occur

    本文作者還以高性能的數字信號處理器( dsp )為cpu設計了測距裝置的速采樣處理,該處理一方面可以實現電流電壓信號的同步數據採,另一方面可以完成測距裝置的故障啟動和故障選任務。
  13. Related elucidation : in the above data, from the entry - level pure water to pure water, it measures to 75 % for. namely each 1. 25 rise the entry - level pure water can produce pure water 1 rise, the running water system is pure aqueous of parameter is also such, from above the data can see, in make take the circuit plank the production have to of the purely aqueous process, adoption collections waste water of way, make the waste water get and return and use in water, reduce waste water and exhaust in the meantime, in this process, not only a great deal of decrease the waste water exhaust quantity, and list make water cost but talk, use waste water each time produce on signing square and pure water, can decline low cost 0. 34 dollars at least, more important can lower waste water and exhaust quantity consumedly

    相關說明:以上數據,從初級純水到純水,其為出量為75 % .即每1 . 25升初級純水可以產純水1升,自來水制純水的參數也是如此,由以上數據可以看出,在制取板生產所必須的純水的過程,採用收廢水的方式,使廢水得到水回用,同時減少廢水排放,在此過程,不但大量減少了廢水排放量,並且就制水成本而言,用廢水每生產一立方純水,可至少降低成本0 . 34,更重要的是可以大大降低廢水的排放量
  14. At the same time, using two - terminal voltages and currents sampled by the medium - speed sampling and processing unit synchronized by the pulse per second ( 1pps ) of gps, the fault locator can realize accurate double - ended steady - state location

    同時,兩端的測距裝置利用gps的同步秒脈沖信號( 1pps )控制各自的速采樣處理的電壓、電流信號進行同步采樣,用這些同步採到的數據還可以實現精確的雙端穩態法測距。
  15. As one of the fcs standards, can field - bus is more highly reliable and low priced, and being used more and more extensively. shcan2000 field - bus control system adopts the can field - bus network structure, and its field control cell centralizes the advantages both of the traditional plc and regulator

    Shcan2000型現場總控制系統採用了can總結構,現場控制了傳統plc 、調節器的功能優勢,控制功能強大且具有極高的可靠性和可觀的經濟性,充分體現了現場總的先進性。
  16. In the theory sustentation, the thesis offers the integration of the subsystems to the integration of the big whole system from three parts : the integration of hardware system, the network technology and the network security, the integration of software system. in the integration of hardware system, the measure control unit is concretely introduced and the intelligent instruments is educed, and then diversified pivotal technology of the instruments are studied deeply through the depiction of the conception and structural character of the intelligent instruments. in the network technology and the network security, the definition and character of the fieldbus is educed firstly, after the actuality and the developing foreground and the faced problems during the developing course are discussed, the network communication protocols cored by the open system interconnect reference model and the industry ethemet which is most widely applied in practice are dissertated emphatically, the problem of the network security is discussed lastly

    在理論支持方面,論文從硬體系統成、網技術和網安全、軟體系統成三個部分對整個大系統的成提供子系統的成:在硬體系統成部分,具體介紹了測量控制mcu ,然後引出智能儀器,通過對智能儀器概念和結構特點的敘述,深入研究了智能儀器的各項關鍵技術;在網技術和網安全部分,首先引入現場總的定義和特點,在探討了現場總的現狀、發展前景及發展所遇到的問題后,重點論述了以osi參考模型為核心的網通信協議和實際應用最廣泛的工業以太網,最後討論了網安全問題;在軟體系統成部分,首先從軟體成的標準問題出發,在探討了軟體成的框架設計思想和開發平臺及開發工具的選擇之後,重點研究了組態軟體在安全監測系統的應用。
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