鍵控調制電路 的英文怎麼說

中文拼音 [jiànkòngdiàozhìdiànlù]
鍵控調制電路 英文
keying modulation circuit
  • 鍵 : 名詞1 [機械工程] （使軸與齒輪、皮帶輪等連接並固定在一起的零件） key 2 [書面語] （插門的金屬棍子）...
  • 控 : 動詞1 （告發;控告） accuse; charge 2 （控制） control; dominate 3 （使容器口兒朝下 讓裏面的液體慢...
  • 調 : Ⅰ動詞1 （配合得均勻合適） harmonize; suit well; fit in perfectly 2 （使配合得均勻合適） mix; adju...
  • 制 : Ⅰ動詞1 （製造） make; manufacture 2 （擬訂; 規定） draw up; establish 3 （用強力約束; 限定; 管束...
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 路 : 1 （道路） road; way; path 2 （路程） journey; distance 3 （途徑; 門路） way; means 4 （條理） se...
  • 電路 : [訊] circuit （ckt）; electric circuit; electrocircuit電路板 circuit board; 電路保持 guard of a c...
  1. This paper mainly aims at the characteristics of the hardware and software structure of the parallel computer on satellite, and has fulfilled researches of fault tolerant technique in three aspects of control theories and engineering : the first research of the system level fault - tolerant module is based on the system structure of the parallel computer on satellite, a kind of cold backup module and a kind of hot backup module for multiprocessor computer have been put forward. then the research of software fault tolerant technique which is based on the operate system named rtems has been carried, the mission level fault - tolerate arithmetic and the system level fault - tolerate mechanism and strategies based on the check point technique have been put forward, at the same time the self - repair technique of software which has used the technique of system re - inject has been studied. finally the technique of components level fault - tolerant based on fpga has been studied, a kind of two level fault - tolerant project which aims at the fault - tolerant module of the parallel computer on satellite has been put forward, and the augmentative of circuit that project design realization need is little, this project can avoid any breakdown of any part logic circuit of the fpga

    本課題主要針對星載并行計算機體系結構及軟體結構的特點，從如下三個方面進行了容錯控制理論研究和實踐工作:首先進行了基於星載多cpu并行計算機體系結構的系統級容錯模型研究，提出了一種多cpu冷備份容錯模型和一種多cpu熱備份容錯模型;然後進行了基於rtems操作系統的軟體容錯技術研究，提出了任務級容錯調度演算法以及基於檢查點技術的系統級容錯恢復機制和策略，同時研究了利用系統重注入進行軟體在線自修復的容錯技術;最後研究了基於fpga的部件級容錯技術，提出了對容錯模塊這一星載并行計算機關鍵部件的兩級容錯方案，實現該方案所需增加的電路少，可避免板級晶元以及fpga晶元內部任何邏輯發生單點故障。
  2. According to the system technology require, adopting singlechip realize open loop digital control of hdclsm ; using v / f conversion and complex key - control method realize digital setting of system parameter, such as velocity ; using micro - stepping control insure the motor running more smoothly ; adopting debasing speed control method to eliminate the mechanical impact of distance termination effectively ; at the same time, analyzing main power circuits drive circuit and protect circuit of system, completing hardware design and facture and software programming and debugging ; at last, making a whole test in hybrid rotary step motor. the experiment result indicates that this control system reaches the qualities required and run smoothly also

    根據系統技術要求，採用單片機實現了混合式直流直線步進電動機的開環數字控制；利用v f變換和復合鍵控方法實現了系統轉速等參數的數字設定；利用細分控制技術保證了電機運行的平穩性，並進行了波形分析和理論研究；採用單片機軟體降速控制策略解決直線步進電機行程末端的機械沖擊問題；同時對主功率電路、驅動電路和系統保護電路進行了分析，完成了硬體設計、製作和軟體編程、調試，最後在混合式旋轉步進電動機上進行了全面測試。
  3. After elaborating the principle of an 802. lib key modulation scheme - complementary code keying ( cck ), this paper proposes and realizes a hardware circuit solution of 802. 11b pcmcia wlan interface card, which can reliably offer a maximal 11mbps data rate and freely switch within 14 working channels in 2. 4ghz frequency band

    接著在詳細闡述了802 . 11b協議核心調制技術?互補碼鍵控（ cck ）的原理的基礎上，本文提出並實現了一種峰值傳輸速率為11mbps的802 . 11bpcmcia高速無線網卡的硬體電路設計方案，在2 . 4ghz頻段該網卡可在14個工作通道上自動切換，實現高速突發數據的可靠傳輸。
  4. It realizes the functions of storing and transferring the information of fire alarm, displaying time, scanning keyboards, the safe maintenance of system and so on. the part of wireless communication is controlled by at89c2051 mcu, mainly realizing transmitting and receiving data between controller and other detectors. the external signals received by a wireless module are transmitted to mcu through shaping circuit, and the signals of mcu are transmitted by a wireless module through tone modulation circuit

    人機交互部分以單片機c8051f020為核心，為用戶提供一個良好的操作環境，實現了火災報警信息的存儲及調用、時間的顯示、鍵盤的掃描、系統的安全維護等功能;無線通信部分由單片機at89c2051來控制，主要實現控制器與其它探測裝置之間信號的無線發射和接收，無線通訊模塊接收到的外部信號經過整形電路送入單片機，單片機發出的信號經過音頻調制再由無線通訊模塊發送出去，這樣實現了數據的無線傳輸;本文還從節能的角度出發，兼顧性能的可靠性，提出了一種合理的無線火災報警的信息傳輸模式。
  5. Then the paper analyzes control system of hybrid active power filter, the way of harmonic detecting and the principle of control system, digital low pass filter and the generation of pwm, on the base of which the paper designs a new parallel hybrid active power filter which is controlled by tms320lf2407, and detailedly introduces drive circuit of pwm, sampling circuit of current, voltage adjustment and protection circuit, communication circuit, liquid crystal display circuit

    分析了混合型有源濾波器的控制系統、諧波檢測方法及控制原理、數字低通濾波器和pwm信號的產生，在此基礎上設計了一種基於tms320lf2407為控制核心的並聯混合型有源電力濾波器硬體原理圖。並對pwm驅動電路、電流采樣電路、電壓調整、按鍵輸入和保護電路、通信模塊、液晶顯示模塊進行了較詳細的分析說明。
  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；主控晶元的選擇，我們選用了高集成度的混合信號系統級晶元c8051f021 ；實現了信號的採集和處理，包括信號的轉換和在單片機內的運算；高集成度16位模數轉換晶元ad7705在系統中的應用，我們完成了它與單片機的介面設計及程序編制任務；精確時鐘晶元ds1302在系統中的應用，在此，我們實現了用單片機的i o口與ds1302的連接和在軟體中對時序的模擬，該晶元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，還給系統加上了一路4 20ma模擬信號電流環的輸出電路來提供系統監測，該部分的實現是通過採用ad421晶元來完成的，本設計中完成了ad421與單片機的spi介面任務，協調了它與ad7705晶元和單片機共同構成的spi總線系統的關系，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路設計、操作鍵盤設計、電源監控電路設計、電壓基準電路的設計。
  7. The forming of signals, such as those employed in telegraph transmission, by the interruption of a direct current or modulation of a carrier between discrete values of some characteristics

    斷開或接通直流電路或者在具有某些特點的離散值之間對載波進行調制而形成信號的過程和方法。如電報傳輸中使用的就是鍵控法。
  8. To accept the current signal from high negative voltage circuit, the analog ground is raised to a certain positive voltage, which makes it possible for the signal amplitude to be compressed at the same time of its polarity reversion. a pi control program special for laser gyro current control is brought forward according to the conventional pid control method, in which the control signal is figured out corresponding to the difference between the sample and the reference value by turn of proportion - short step integral - long step integral. and at the end of this paper, a comparison of system performance on different conditions is made and the key elements influencing system performance are educed

    利用集成a / d 、 d / a轉換器的新型晶元aduc824 ，實現了電流（電壓）采樣?數據處理?電流控制的閉環控制結構；地電位的抬升解決了a / d轉換器對負高壓迴路電流采樣時的輸入范圍匹配問題；控制信號反相的同時進行幅度壓縮，使得輸出調整電壓的解析度提高；根據常規的比例?積分?微分（ pid ）調節模型，針對陀螺系統的特性，給出了一種可以滿足系統要求、據采樣值偏差大小進行的比例?大步長積分?小步長積分、分層次比例?積分演算法；不同條件下系統穩流性能的對比、分析在論文最後給出，並據此找出了決定該系統穩流精度的關鍵因素，提出了系統的改進意見。
  9. The system is based on chopper constant current drive technique, according to the top level design idea, adopting advanced specical subdivision control integrate circuit and powerful function 80c196kc to organize the system frame, desiging the minimum system of single - chip microcomputer, multifunction i / o interface circuit, relay switch circuit, keyboard and display circuit, multifunction digital setting interface circuit and so on, utilizing the hso and hsi interface circuit which are owned by this single - chip microcomputer exclusively and its powerful command system to realize dual - degree switch control, automation orientation, automatically searching zero position, locking machine when stopping, frequency to set digitally, automatically adjusting speed through changing frequency, swithing subdivision or squarewave control, on the basis of above, the system also have the function of running according to the setting steps and the frequency, voltage and current to display through the led, etc

    系統基於斬波恆流驅動技術，按照頂層設計思想，採用先進的專用細分控制電路和功能強大的80c196kc單片機來組建系統構架，設計了單片機最小系統、多功能i o介面電路、繼電器切換電路、鍵盤顯示電路和多功能數字設定介面電路等，利用該單片機獨有的hso和hsi介面及其強大的指令系統，實現了雙余度混合式步進電動機的余度切換控制、自動定位、零位自動搜索、停機鎖定、數字化頻率設定、自動調頻變速控制、細分方波切換控制，在此基礎上，該系統還設有按預置步運行、 led頻率電壓相電流顯示等功能。
  10. In the hardware design, the analog circuit, high - speed a / d convertor, storage control logic and vxibus interface are discussed. the results of the simulation and analysis of the circuits are given

    在模塊的硬體電路設計部分中，著重對信號調理電路、高速a / d轉換器、高速存儲邏輯控制以及vxi總線介面等內容進行了討論，給出了具體的電路設計和關鍵器件的說明，並對部分模擬電路和數字電路進行了模擬分析。
  11. 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

    本文在簡單的論述了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通訊介面的設計方案: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線介面晶元hs - 3282的工作原理做了說明;介紹了本設計所用的dsp和cpld的功能概況;詳細敘述了通訊板介面模塊的硬體結構設計，其中，對數據緩沖電路、數據傳輸速率選擇電路、邏輯控制電路等各關鍵點做了重點介紹;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;接著從埠譯碼單元、 i / o通道、電平轉換電路等方面進行了介面模塊的軟、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。
  12. The development of fieldbus and the protocol content of can are first presented in this paper, and the circumstance and performanceof real - time communication in modern industry control system are discussed. on a basis of the research founded by shaanxi project " design of smart electrical actuator based on fieldbus " and xi ' an project " design of intelligent measurement and control node based on can ", the following problems are studied : flexible control and real - time communication in modern factory automation ; the model and protocol in can circumstance, including several popular can highlayer protocol such as canopen, devicnet ; time trigger and event trigger schedule in can ; design of intelligent can node based on 80c51mcu

    結合陜西省火炬計劃項目「基於現場總線的智能電動執行器關鍵技術研製開發」和西安市科技攻關項目「現場總線智能電動執行器研製」 ，研究了現代工業系統的「柔性控制」和實時性問題；研究了Ｃ Ａ Ｎ現場總線網路環境相關的通訊協議和模型，其中包括了Ｃ Ａ Ｎ ｏ ｐ ｅ ｎ 、 Ｄ ｅ ｖ ｉ ｃ Ｎ ｅ ｔ等幾種流行的Ｃ Ａ Ｎ總線高層協議；研究了在現場總線網路環境中時間觸發和事件觸發的調度機制；研究了基於５ １單片機系統如何進行Ｃ Ａ Ｎ現場總線智能節點的設計。
  13. Extreme ultraviolet lithography is being developed as one of the most important candidates to fabricate a sub - o. lum - pattern. in recent years, several key technologies have been developed rapidly such as laser producing plasma source, extreme ultraviolet multilayer, optical fabrication and metrology, projection - camara alignment, low - defect mask and control technology of stage

    極紫外投影光刻（ extremeultravioletlithography簡稱euvl ）最有可能成為下一世紀生產線寬小於0 . 1 m集成電路的技術，近年來在激光等離子體光源、極紫外多層膜、光學加工和檢測、光學精密裝調、低缺陷掩模、光刻膠技術以及高穩定工作臺系統控制等關鍵技術方面得到了飛速發展。
  14. Moreover, a novel method is also proposed to using pdp driving ic to perform the traditional pwm modulation. the shared platform is also discussed. besides the circuit design and program, in the paper, according to the typical equivalent pixel unit circuit, analyze the key parameter of the circuit by the support of theory formula deduction, analysis and simulation. it ’ s favorable to improve the high - frequence property of fed sample and enhance the display quality

    實際上，文中還提出了採用pdp驅動晶元進行pwm調制的控制方法和相應驅動波形設計，並就與子行灰度調制方法共享有關硬體和軟體平臺來驅動fed顯示屏進行了有益的探討。除了電路製作和控制編程外，本文從fed顯示屏典型像元的等效電路入手，採用理論公式推導、分析和模擬結合，指出了驅動電路設計中的關鍵參數選擇準則。這有利於改善fed整機的高頻特性，提高fed的顯示質量。
  15. It consists of two parts : channel modulator ' s controlling system and the receiver ' s controlling system, including the interface designing of the demultiplexer, the controlling of the channel demultiplexer, if modulator, tuner, the setting and transmitting of the system parameters, and the real - time monitoring of the whole system, etc. based on the descriptions of the scheme of bdb - t and the principles of controlling circuits, this paper presents the hardware and software designing methods of the controlling circuits, and realizes a powerful, multifunctional and reliable controlling system which can automatically record the operational states of the system and communicate with other personal computers through a rs - 232 serial interface

    控制系統是實現整個傳輸系統的關鍵部分，它分為通道調制器控制系統和接收機控制系統兩大部分，其中包括了通道解復用器用戶介面設計、對通道解復用器的控制、系統傳輸參數的設置與傳送、中頻調制器的配置、數字調諧器的配置，以及對整個系統的實時監控。本文在闡述了bdb - t方案及其各部分電路的控制原理的基礎上，詳細描述了控制系統的硬體電路設計和軟體實現方法，實現了一套功能完善、性能穩定且具有自動記憶功能的控制系統，同時該系統通過rs - 232串列介面可以實現與計算機的串口通信。
  16. This paper designs a signal converter circuit for flow, and narrates its work principle, the parameters are calculated to importance devices. this circuit is designed for high precision, easy operating and simple struction

    設計了一種與流量控制系統配套的流量信號變送器電路，給出了電路的工作原理，計算了關鍵元件的參數.該電路具有性能好、簡單、調整容易等特點
  17. The article put forward the general plan to realize intelligent pneumatic actuator and studied and analyzed on some of key technical questions : low power - consumption electrical - pneumatic converting unit and low power - consumption control circuit solution which is based on piezo ceramic principle and meet the requirements of intrinsically safe explosion - proof ( ib ct5 ) ; general software solution which realizes the goal of intelligence and hart communication function ; reliability design solution which answers the purpose of mtbf 16000 hours and regard electrocircuit, machine unit and software as main parts

    本課題以氣動調節閥的智能化為研究目標，提出了實現氣動執行器智能化的總體方案。並對其中幾個關鍵技術難題進行了研究分析：以滿足本安型防爆要求（ ib ct5 ）的基於壓電陶瓷原理的電氣（ i / p ）轉換單元、低功耗的控制電路方案；以實現智能化和hart網路通訊功能為目標軟體總體設計方案；以mtbf 16000小時為目標和以電子電路、機械零部件、軟體為主體的整機可靠性設計方案。
  18. Millimeter - wave switch is a kind of the millimeter - wave control circuits, it is widely applied in receiving protection of pulse radar and radio modulator, and it ' s also one of the very important parts of radar and test system

    毫米波開關是毫米波控制電路的一種，它廣泛應用於脈沖雷達接收保護和射頻調制器，是雷達利測試系統中的關鍵部件之一。
  19. The computer control system of a high - speed industrial sewing machine is studied in the dissertation. the system ' s operation principle, the design nation with the core of 80c196kc mcu ( micro - chip computer ) also are discussed in the dissertation the methods of a minimum operation system of mcu, the principle circuit of signal adjusting, data collecting, keyboard controlling, led displaying, electromagnetic clutch and magnet valve power driver circuit etc. are proposed and realized

    論文分析了工業高速自動剪線縫紉機（簡稱工縫機）計算機控制系統的工作原理，提出了以80c196kc單片機為控制核心的系統設計方案，並詳述了關鍵部分的功能與實現方法。設計了電路原理圖，完成了系統軟硬體設計、安裝，調試，和對系統原理樣機的性能測試。
  20. Three kinds of solutions of the bluetooth keyboard mouse system were put forward in the paper. among them the solution selected in the subject was especially introduced, which includes overall conceptual design, development environment introduce, system circuit design, keyboard and mouse controller software design, pc end software design and system debug etc. the subject is a successful attempt to apply bluetooth wireless communication technology to computer peripheral

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