換碼器 的英文怎麼說

中文拼音 [huànmǎqì]
換碼器 英文
code converter
  • 換 : 動詞1. （給人東西同時從他那裡取得別的東西） exchange; barter; trade 2. （變換; 更換） change 3. （兌換） exchange; cash
  • 碼 : Ⅰ名詞（表示數目的符號或用具） a sign or object indicating number; code Ⅱ量詞1 （指一件事或一類的...
  • 器 : 名詞1. （器具） implement; utensil; ware 2. （器官） organ 3. （度量; 才能） capacity; talent 4. （姓氏） a surname
  1. The system is formed with explosion - proof kinescope, explosion - proof braket, explosion - proof decode, matrix controller, keyboard controller, 232 to 485 switch, color kinescope, digital harddisk kinescope system, display, manostat, explosion - proof junction boxes and special cable

    該系統由防爆攝像儀、防爆雲臺、防爆解碼器、矩陣控制器、鍵盤控制器、 232轉485轉換器、彩色攝像機、數字硬盤錄像系統、監視器、穩壓電源、防爆接線箱及專用電纜等組成。
  2. Coders, converters, keyers, spgs and screen displays

    編碼器解碼器傳輸器轉換器色鍵器
  3. In addition, make out in detail the design on inner combination logic and time logic of fpga, including series - parallel conversion, data selector, counter, flip - latch, timer, encoder, etc. at one time, not only pursuit flow of the data gathering system is illuminated, but also make use of in reason and effectively inner ram resource of fpga and build it in ping - pong framework

    另外，詳細的介紹了fpga內部的組合邏輯和時序邏輯的設計方案，包括串並轉換、數據選擇器、計數器、鎖存器、定時器、譯碼器等。並闡述了數據採集系統的工作流程，而且合理有效地使用了fpga內部的ram資源，將其構建成乒乓式結構。
  4. Support for transcoding all supported audio formats using the converter component ( requires external commandline encoder executables for different output formats )

    使用內建的轉換組件可以轉換所以支持的音頻格式（不同的輸出格式需要外部命令行編碼器可執行程序）
  5. The encoder and decoder used in atm switcher are designed using specific error correcting 1c

    設計了atm交換機中編譯碼器模塊。
  6. For the avoidance of doubt, electronic records coded in extended binary - coded decimal interchange code ebcdic, which is a character encoding standard commonly used in ibm mainframe machines, will not be accepted

    為免生疑問，利用擴充的二-一十進制交換碼（ extendedbinary - codeddecimalinterchangecode （ ebcdic ） ） （萬國商業機器（ ibm ）主機電腦常用的字元編碼標準）編制的電子紀錄，將不予接納；
  7. For the avoidance of doubt, electronic records coded in extended binary - coded decimal interchange code ( ebcdic ), which is a character encoding standard commonly used in ibm mainframe machines, will not be accepted

    為免生疑問，利用擴充的二-一十進制交換碼（ extendedbinary - codeddecimalinterchangecode （ ebcdic ） ） （萬國商業機器（ ibm ）主機電腦常用的字元編碼標準）編制的電子紀錄，將不予接納；
  8. The format transcoding includes the frame size conversion, frame rate or field rate conversion, and interlaced / progressive video conversion. in this chapter, the frame size trancoding with arbitrary rational number ratio of l / m is put forward

    提出了變換比例為任意有理數l m時的空域任意尺寸轉碼，以及針對任意尺寸轉碼器的運動矢量重用演算法。
  9. At the aspect of hardware design, it adopts pulse distributor and the technology of single polar voltage drive to accomplish the function of controlling and driving stepmotor ; it adopts the technology of pulse width modulation and cmos h - bridge drive to accomplish the function of controlling and driving dc servomotor ; it adopts d / a convertor to accomplish the function of controlling ac transducer ; it adopts the technology of digital phase detection to accomplish the function of detecting the feedback position signal of induction phase shifter ; it adopts dsp ’ s capture cell to accomplish the function of detecting the feedback position signal of photoelectric coder

    硬體方面，採用脈沖分配器和單極性電壓驅動技術實現了步進電機的控制和驅動功能;採用脈寬調制技術和cmos互補h橋驅動技術實現了直流伺服電機的控制和驅動功能;採用d / a轉換器實現了交流變頻器的控制功能;採用數字化相位檢測技術實現了感應移相器位置反饋信號的檢測功能;採用dsp的捕獲單元實現了光電編碼器位置反饋信號的檢測功能。
  10. In the transmiting port, optical encoder turns data bits into spread spectrum sequences, then, optical decoder retverts it to data bits with the theory of correlation decoding in the receiving port

    在發送端光編碼器將數據比特轉換成擴頻序列，在接收端光解碼器利用相關解碼原理將擴頻序列恢復為數據比特。
  11. The distributed plc system of the floodgate ' s opening measuring presented by the paper has many advantages such as high reliable operation, high measuring precision, having the network communication function, convenient installation and correction, etc. this thesis further studies the key device for the floodgate ' s opening measuring, the rotary encoder, selects the absolute rotary encoder adopting the binary cyclic code, studies the method for transforming the cyclic code to the binary data and according to the transforming formula designs the ladder diagram program

    本論文研製的分散式plc閘門開度測量系統具有工作可靠、測量精度高、具有聯網通信功能、安裝和校正方便等特點。本論文深入研究了閘門開度檢測的關鍵器件? ?旋轉編碼器，選用了採用二進制循環碼編碼的絕對式旋轉編碼器，研究了將二進制循環碼轉換為二進制數的方法，根據轉換公式設計了plc的梯形圖轉換程序。
  12. Although there have been many application instances in the field of input / output device technology, we need an specific project and technology route aimed at an given application. in this thesis, we combine the introduction and analysis of relative technology to describe the accomplishment of a coordinate collecting device which is based on incremental rotary encoder. this device is an specific device applied to collect the corrdinate displacement of ground image ’ s three - dimensional model created by full digital photogrammetric station. cpld chip and vhdl are applied in this device to carry out the following work : phase control of the electrical pulse created by incremental rotary encoder, counting the number of electrical pulse, controling the state of signal processing circuit, exchanging data between this circuit and pci control

    本文結合相關技術的介紹和分析，描述了一個基於增量式旋轉編碼器的坐標參量採集介面卡的實現，此介面卡是一種用於採集全數字攝影測量系統地面影像模型坐標位移量的專用設備，該設備採用cpld器件和vhdl語言實現增量式旋轉編碼器的脈沖信號鑒相和計數、信號處理部分的狀態控制以及和pci總線晶元ch365之間的數據交換和通信功能，同時該設備的驅動程序基於wdm模式，並且配置有結構良好的動態鏈接庫程序作為系統軟體和驅動程序之間的數據和控制交互中間介面，能夠方便地運行在windows98 / 2000 / xp操作系統平臺上，具有實時性強、工作穩定、通用性較好和性價比高等特點。
  13. 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。
  14. Now with oil, chemicals, power, shipping, coal, and other industries are developing rapidly, from not satisfied with the status quo of the company has with the relevant scientific research institutes, institutions of higher learning and the joint development of anti - corrosion experts to develop new products and train a large number of high - quality technical and management talent now, the public secretary of technologies and products not only be used for oil, gas pipelines, ships, docks, marine facilities, and other traditional applications industries, and is to increasingly broad new areas extend and expand, such as heat exchangers, heaters, bridges and high - rise buildings, such as the underground foundation

    目前隨著石油、化工、電力、船舶、煤炭等各個行業的迅猛發展，本公司從不滿足現狀，先後同有關科研院所、大專院校及防腐專家聯合研製開發新產品，培養了一大批高素質的技術和管理人才，如今，公司的技術和產品不僅被用於油、氣輸送管道，船舶、碼頭、海洋設施等傳統應用行業，而且正在向越來越廣泛的新的領域延伸和拓展，如換熱器、電熱水器、橋梁和高層建築的地下基礎等。
  15. The characteristic of h. 264 standard can be concluded mainly into three aspects. it is more practicable, more adaptive to ip net and mobile system and it improves the key components of coding structure based on hybrid video coding framework. for example, it adds coding mode decision, multi frame prediction, context - based adaptive variable length coding ( cavlc ), 4x4 integer transform, loopfilter, etc. the improvement in performance leads to higher computational complexity in the new standard

    H . 264的技術特點可以歸納為三個方面，一是注重實用；二是注重對移動和ip網路的適應；三是在混合編碼器的基本框架下，對其主要關鍵部件都做了重大改進，如多模式運動估計、幀內預測、多幀預測、基於內容的變長編碼、 4 4二維整數變換等。
  16. In the encoder, if the incoming block is intercoded, no dct coefficients are computed after the eob of the incoming blocks is performing a dct

    在該編碼器部分，假如輸入區塊是交互編碼模式，則僅需對輸入離散餘弦轉換區塊進行解量化及再量化之程序，無需其它任何離散餘弦轉換及反向離散餘弦轉換之運算。
  17. In the decoder, an end - of - block ( eob ) position of an incoming block received by the decoder is determined and a discrete cosine transform ( dct ) block type is determined based on the determined eob position

    在該解碼器部分，將收到的輸入區塊中決定一區塊終止的位置，並根據此區塊終止位置決定一種離散餘弦轉換區塊形式。
  18. Further, in the encoder when the incoming block is intercoded, an algorithm is applied to predict which dct coefficients may become zero after a subsequent quantization operation, and only dct coefficients that may not become zero are computed in performing the dct

    再者，在該編碼器中，當輸入區塊是交互編碼模式，則應用一種計算方法來預測經由后續的量化運算后那一些離散餘弦轉換系數可能變為零，而只有那些可能不會變為零的離散餘弦轉換系數會用在執行離散餘弦轉換的計算中。
  19. ( 3 ) study deeply the structure of fat 16 file system and the characteristic of flash disk, and develop the file management software of flash disk to manage nc files effectively according to the management idea of fat 16 file system. ( 4 ) research the module and protocol of reliable communication in serial network, which are composed of arm main control board, dsp motion control board, keyboard board, i / o control board and encoder signal collection board, and then develop communication software of the serial network. ( 5 ) study the principle of displaying char in lcd and the method of embedding font library into operating system, and research deeply the method of embedding chinese font library into os in the light of the characteristic of chinese

    本論文的主要研究內容如下： （ 1 ）研究uc os -實時嵌入式操作系統在硬體平臺上的移植及其佔先式內核的任務調度原理，合理分割銑床控制系統的管理任務，根據任務的要求賦予不同的優先級和調度時間，保證任務的執行效率和實時性； （ 2 ）開發底層設備驅動程序和應用程序介面（ api ）函數，以便於進行系統應用軟體的開發； （ 3 ）深入研究fat16文件系統的結構和固態盤的硬體特性，參照fat16文件系統的管理思路，開發固態盤文件管理軟體以有效管理nc代碼文件； （ 4 ）深入研究由arm主控板、鍵盤板、 i o控制板、編碼器信號採集板等裝置組成的串口通訊網路可靠通信的模型及其通訊協議，開發串口通訊網路通信軟體； （ 5 ）研究字元的顯示原理和在操作系統中嵌入字庫的方法，在此基礎上結合漢字的特性深入研究中文字庫的嵌入方法，開發中文字庫嵌入軟體，滿足開發操作界面的信息要求； （ 6 ）深入研究三維圖形坐標變換的原理，開發實用的三維加工軌跡顯示軟體，便於操作者對零件的加工過程進行監控和診斷。
  20. Hence, the requirements of the servo control card are getting much sophisticated. in this thesis, the research work and implementation details of a 6 axes servo control card are discussed. this card is based on the ti company ? dsp chip tms320f240 and has realized the following functions : a ) signal encoder, b ) position limit, c ) dual ram communication with cpu, d ) coordinated control e ) dia conversion

    該卡以ti公司的16位定點數字信號處理器tms320f240為核心晶元，實現6路編碼器信號輸入處理，軸限位中斷處理，通過雙埠ram與pc進行通訊，接收pc發送過來的控制指令和數據，完成插補運算、聯動運算等控制，通過d / a轉換電路，將結果轉化為模擬電壓送伺服放大器驅動電機。
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