線路介面單元 的英文怎麼說

中文拼音 [xiànjièmiàndānyuán]
線路介面單元 英文
liu line interface 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...
  • : Ⅰ名詞1 (頭的前部; 臉) face 2 (物體的表面) surface; top 3 (外露的一層或正面) outside; the ri...
  • 線路 : 1. [電學] circuit; line 2. [交通運輸] line; route
  • 介面 : joggle; nozzle; mouthpiece; [計算機] interface
  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。它是一種能支持雙向、多節點、總式的全數字通信網。基於現場總技術的控制系統是一種新型的控制系統,它採用總方式將現場控制、現場監視、操作站、通信連接起來,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. 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,本文簡要紹了常用的幾種現場總的概況以及lonworks技術在現場總技術中的地位和影響,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;重點紹了集先進的計算機技術、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集、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中心控制室之間的通信工作。
  3. 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:紹了一個基於標準布圖模式的電源/地的輔助設計集成工具.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的不同需求.實驗結果表明,文中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
  4. Linear induction motor is an important kind of machines which have some merits such as simple structure, low cost, durability, convenience for maintenance etc. the subject of this thesis is to study a big circular ring linear induction motor, and the major works in this thesis are summarized as follows : ( 1 ) considering the effects of the finite length of primary core, one - dimension analytical solution for the air gap field is cited in this paper. based on it, the single layer winding magnetic field is studied. considering whole - pitched and short - pitched winding configuration with odd poles and half - fulled slots in both ends, the double - layer winding magnetic field is analyzed, respectively

    本文對大圓環直感應電機進行了深入細致研究,內容包括: ( 1 )本文採用有限長行波電流作用於有限長鐵芯上的模型,引用了氣隙磁場一維解,研究了層繞組磁場,奇數極半填槽雙層繞組在採用整距和短距時磁場的分析、比較,簡紹了二維解; ( 2 )用有限軟體ansoft對大圓環直感應電機空載氣隙磁場進行了靜態分析,並分析了結果; ( 3 )用軟體進行了額定電壓下的瞬態分析,得到了轉矩,位移,轉速隨時間變化曲圖,利用極性霍爾件測定轉速並與軟體計算結果進行了比較,採用等效電法計算了堵轉時的最大電磁力並做實驗進行了驗證,由實驗測得了三相電流波形,並與計算結果進行了比較,對其不對稱性進行了定性分析。
  5. In order to make the sensitivity of 2 - demension accelerometer along the two main arbors almost identical, symmetric four - beam structure that embeds a double - sides interdigitated differential capacitive with puckered beam in two directions was used as sensitive component. in addition, the differential capacitive accelerometer fabricated by bulky silicon micromechanical technique has high sensitivity, wide measurement scope, less nonlinear error, and simple converting circuit. then, the structure parameters of the sensitive component were calculated and stimulated, which results in a set of the optimized structure design parameters, main fabrication procedure and several key fabrication technology

    為使二維振動傳感器在兩主軸方向的靈敏度大致相同,敏感件採用高度對稱的四梁結構,其中每個軸向上均採用帶折疊梁的雙側叉指電容結構,採用體硅微機械工藝製作的高深寬比叉指電容式敏感件,具有高靈敏度、寬量程、非性誤差小、外圍電等優點;對設計的敏感件結構參數進行了計算,並利用有限法進行了模擬分析,根據模擬結果得出了優化參數;在確定敏感結構的基礎上,研究了敏感件採用體硅微機械加工工藝製作的工藝流程和關鍵工藝技術;對敏感晶內部的c - v進行了原理設計與分析,利用差動測量技術得到由振動引起的微小電容變化量,經c - v進行相位調制處理,然後通過解調輸出與加速度成正比的電壓信號。
  6. 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,其中所作的具體工作包括:測量原理的研究和在系統中的實現,在本次設計中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,我們選用了高集成度的混合信號系統級晶c8051f021 ;實現了信號的採集和處理,包括信號的轉換和在片機內的運算;高集成度16位模數轉換晶ad7705在系統中的應用,我們完成了它與片機的設計及程序編制任務;精確時鐘晶ds1302在系統中的應用,在此,我們實現了用片機的i o口與ds1302的連接和在軟體中對時序的模擬,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,本設計中完成了ad421與片機的spi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。
  7. Concretely, on the basis of describing the communication specification of arinc 429 with enhanced parallel port ( epp ), the standard and the module application of dsp and cpld, the thesis has proposed the design of the arinc 429 technology based on dsp system. at first, the function and the application of each module of the system and the operation principle of high - performance cmos bus interface circuit hs - 3282 chip which forms the main body of the data diversion of the interface module are introduced. secondly, the hardware structure of the interface module is described in detail, mainly including data latch and buffer circuit, choice circuit of transmission rate, etc. and then the design philosophy and flow charts of the software are fully discussed, such as the basic requirement of software, the design and realization of the function

    本文在簡的論述了pc並口協議( epp )與dsp之間的通信方法、 cpld模塊邏輯控制應用和arinc429的通訊規范的基礎上,給出了基於dsp的arinc429通訊的設計方案:對通訊板中各模塊的功能和應用以及構成數據轉換主體的總hs - 3282的工作原理做了說明;紹了本設計所用的dsp和cpld的功能概況;詳細敘述了通訊板模塊的硬體結構設計,其中,對數據緩沖電、數據傳輸速率選擇電、邏輯控制電等各關鍵點做了重點紹;具體闡述了軟體設計思想及流程圖,包括軟體的基本要求和功能的設計與實現;接著從埠譯碼、 i / o通道、電平轉換電等方進行了模塊的軟、硬體調試;最後,給出了測試結果,對研製工作做了總結,對本設計的優缺點各做了評述。
  8. This thesis gives the design of an airborne datum communication board based on arinc429 bus, which is adopted dsp as controller, utilized bus interface chip hs - 3282 and use self - designed 429 electronic conversion circuit, then form a simple structure datum communication board with high dependability

    該通訊板實現了pc並口( epp )與arinc429協議間的通訊,採用dsp控制,利用arinc429總hs - 3282和自行設計的電平轉換電,構成了一款結構簡、可靠性高的數據通訊板。
  9. On - line monitoring of hvcb is the precondition of predicting maintenance, is the key element of reliable run, and is the important supplement to the traditional off - line preventive maintenance in fact, the faults are made by hvcb, no matter in number or in times, is over 60 % of total faults so it has determinative importance for improving the reliability of power supply and this can greatly decrease the capital waste used by - dating overhaul in this paper, the inspecting way of hvcb mechanism characteristic is discussed the concept of sub - circuit protector is presented, the scheme that we offered has been combined with sub - circuit integrality monitoring theory, to ensure that it has the two functions as a whole according the shut - off times at rated short circuit given by hvcb manufacturer, the electricity longevity loss can be calculated in each operation, and the remained longevity can be forecast too an indirect way for calculating main touch ' s temperature by using breaker shell temperature, air circumference temperature and breaker ' s heat resistance is improved in this paper, and main touch resistance can be calculated if providing the load current msp430, a new single chip microcomputer made by ti company, is engaged to develop the hardware system of the on - line monitoring device, and special problem brought by the lower supply voltage range of this chip is considered fully

    高壓斷器所造成的事故無論是在次數,還是在事故所造成的停電時間上都占據總量60以上。因此,及時了解斷器的工作狀態對提高供電可靠性有決定性意義;並可以大大減少盲目定期檢修帶來的資金浪費。本文論述了斷器機械特性參數監測方法;提出了二次迴保護器的概念,並將跳、合閘圈完整性監視和二次迴保護結合起來,給出具有完整性監視功能的二次迴保護器實現方案;根據斷器生產廠家提供的斷器額定短電流分斷次數,計算每次分閘對應的觸頭電壽命損耗,預測觸頭電壽命;提出根據斷器殼體溫度和斷器周圍空氣溫度結合斷器熱阻來計算斷器主觸頭穩態溫升的方法,並根據此時的負荷電流間接計算主觸頭迴的電阻;在硬體電設計上,採用美國ti公司最新推出的一種功能強大的片機msp430 ,並充分考慮該晶的適用電壓范圍給設計帶來的特殊問題;在通信模塊的設計中,解決了不同工作電壓晶之間的問題,並給出了直接聯接的接方案。
  10. Integrating boiler control computer reconstructing, the paper presents the solution of adopting shcan2000 system to realize auto control, including loop auto control, test data auto - collection, friendly human - machine interface, test reports auto building, etc. the function configuration realization of operation station and field control unit is discussed in this paper

    結合鍋爐控制系統改造項目的應用背景,提出了採用shcan2000型現場總控制系統實現鍋爐生產的自動控制,包括各種迴自動控制、數據自動採集、友好的人機、試驗報表的自動生成等,並紹了上位機操作站和現場控制的功能組態實現。
  11. Based on s698 technology, obt - devsys - s698 is one of the serial s698 - mil application development systems including 32 - bit embedded processor with 32 64 - bit fpu 160mhz processing speed sram memory controller flash memory controller uart ps 2 led interrupter controller, etc. the bus interfaces is composed of i2c spi magnetic card interface and ic card interface. obt - devsys - s698 carries on the advantages of s698 serial module such as compact structure and reasonable composition

    Obt - devsys - s698是s698系列嵌入式處理器開發板中的一員,其上包括:具有32 64 - bit浮點運算的32 - bit嵌入式處理器,主頻160mhz , sram存儲器, flash存儲器具有三uart,一ps 2, led發光二極體控制電,中斷操作按鈕其外擴總包括i2c總spi總磁卡智能卡等。
  12. 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中存在技術相對陳舊、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設計,本文提出基於「片機+ cpld fpga體系結構」的集成化設計方案:在cpld中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;人機的lcd菜操作方式。
  13. This paper sums the situations and trends of domestic and international engineering machinery firstly, discusses the demands and implements of intelligent and long - range monitoring and controlling, and constructs a three - layer model of the engineering machinery long - range monitorin and control system : the front unit control systems, the machine - mounted monitoring system and the long - range control center ; proposes a kind of structure of embedded system based on c / os - ; dissects the characteristics, structure, operation and schedule principle of c / os -, modified the kernel, and improves dependability of the schedule algorithm ; designs the hardware in detail : the microprocessor at91rm9200, the store unit, the serial interface, the human - computer interaction interface, the can bus control module, the debug interface and the reset circuit etc. ; on this basis, succeeds in transplanting c / os - to the system, sets up the operating system framework, designs the driver, sets up the institutional framework of upper user ' s application, provides the method and concrete application process of the graphical user interface module based on c / os -. the system designed in this paper, not only has the functions of local control, friendly human - computer interface, but also has various interfaces which make the system can be managed by the long - rang center

    本文首先綜述了國內外工程機械行業發展的現狀和趨勢,闡明了實施工程機械智能化及遠程監控的意義和需求,並為此構建了工程機械遠程監控系統三層結構模型:前端控制系統、車載監控系統和遠程監控中心;提出了一種基於c / os -的嵌入式車載監控系統構建方案;深刻剖析了c / os -的特點、內核結構、運作機理、調度演算法,在此基礎上對其內核進行移植前的必要修改,並對其調度演算法進行了可靠性改進;對構成嵌入式系統硬體的各個主要部分:嵌入式微處理器at91rm9200 、存儲、串列、人機交互、 can總控制模塊、調試以及復位電等做了詳細的設計;在此基礎上,成功地將c / os -實時內核移植到本文研發的嵌入式硬體系統中,建立了車載監控系統的操作系統體系結構,編寫了該操作系統的底層硬體驅動程序,建立了上層用戶應用程序的組織結構,並給出了圖形用戶界模塊化應用程序在c / os -操作系統上的建立方法和具體應用過程。
  14. The method of realizing pci bus interface circuit is analyzed. the method of using universal interface chip pci9052 to realize it is presented. the questions that should be considered in the side of

    分析了實現pci總的方法,提出了採用通用的pcipci9052的方法來設計,把設計時需要考慮的pci側的問題,轉移到局部側來,問題變得簡而直接。
  15. Discussions and preliminary experiments are given for some potential applications of left - handed materials. experimental results which are in accordance with expects for the focusing of plane wave using symmetric rings and the focusing of radiate source using rings are obtained. simulation results are also obtained concerning the - like structure based backward radiate antenna and transmission line based left - handed structures

    對稱環結構異向質凹透鏡的平波聚焦、結構異向質的點源會聚等實驗都得到了和預期接近的初步結果;對基於結構全固態異向質後向波質天微波異向質的實驗研究和基於微帶電結構的異向質進行了計算機模擬研究,也取得了較好的結果。
  16. Line interface unit

    線路介面單元
  17. With the thread of the data structure and the communication of the information, this paper designs the hardware and software of the system and implements the functions of the thin server by using the soc scm extended network interface chips

    本論文以數據結構和信息傳遞為索,利用soc片機擴展網,在硬體和軟體上進行了系統設計,實現了瘦服務器的功能。
  18. In the multi - module mode both trig signal and reference clock are used for synchronization. the functional module supports dma with the dsp, which frees the dsp ' s core processor and entitles the real - time digital signal processing

    在數據傳輸方無論是通過外部總還是數據鏈,功能模塊與dsp之間都支持dma方式,解放了母板處理器的核心運算,使實時信號處理成為可能。
  19. Microprocessor ' s i / 0 is the seria1 interface chip, making the system simplified and reliability increased. the state and seat of throttle. clutch and brake, the rotates speed of engine, the direction of motive force etc are the paraneters

    自動控制系統硬體電以at89c52為核心,沒有外擴ram 、 rom , i / o採用串列工作方式,接,可靠性高;設置油門、離合器、剎車狀態和位置,發動機轉速,動力流向等傳感器獲取運行參數。
  20. This paper firstly discusses the characteristics and advantages of the information transmission through sms provided by gsm network theoretically and systemically, discusses the necessity and possibility of the application of the technology into the power network detection information system, demonstrates the specifications and standards of the wireless communication interfaces used in the systems ; then, it demonstrates the constitution of the power network information system based on gsm network and the process of the operation of the system, based on this, proposes the project of one small size, cost - effective, convenient and high reliability remote detection and control unit

    本文首先從理論上系統地論述了通過gsm網提供的簡訊息服務sms進行信息傳輸的特點,討論了將該技術應用於電力網檢測信息系統中的可能性,對系統中用到的無通信規范及標準進行了說明。闡述了基於gsm網的電力網信息系統的組成,以及其工作過程。提出了一個體積小、經濟,方便用戶使用,可靠性高的遠端檢測控制實現方案。
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