晶體控制時鐘 的英文怎麼說

中文拼音 [jīngtǐkòngzhìshízhōng]
晶體控制時鐘 英文
crystal-controlled clock
  • 晶 : Ⅰ形容詞（光亮） brilliant; glittering Ⅱ名詞1. （水晶） quartz; （rock） crystal 2. （晶體） any crystalline substance
  • 體 : 體構詞成分。
  • 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...
  • 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...
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  • 鐘 : Ⅰ名詞1 （用銅或鐵製成的響器） bell 2 （計時器） clock 3 （指鐘點、時間） time 4 （沒有把兒的杯子...
  • 晶體 : [晶體學] crystal; vitrella; crystal body; crystalloid; x-tal
  • 控制 : control; dominate; regulate; govern; manage; check; cybernate; manipulate; encraty; rule; rein; c...
  • 時鐘 : [電學] [半] clock時鐘計數器 [自動化] clock counter
  1. The subject has mainly finished designing and debugging software and hardware of a / d decode module, fpga video processing module, video data frame deposit module, base clock produce module, d / a encode module, i2c bus control module, etc. a / d decode module gathers analog tv signals and realize video decode ; fpga video processing module deals with the data after decoding and produces systematic logic control signal ; video data frame deposit module offers the buffering area to a large n umber of high - speed video data ; base clock produce module through input basic video signal offers system accurate relevant synchronous signal ; under control of video processing module d / a decode module convert digital video data into compound tv signal which can be shown in tv directly ; i2c bus control module is used to initialize the chip of system by simulating i * c bus timing

    本課題主要完成了a d解碼模塊、 fpga視頻處理模塊、視頻數據幀存模塊、基準時鐘產生模塊、 d a編碼模塊、 i ~ 2c總線控制模塊等部分軟、硬體設計及調試。其中a d解碼模塊採集模擬電視信號實現視頻解碼； fpga視頻處理模塊對解碼后的數據進行去噪處理的同時還負責系統的邏輯控制；視頻數據幀存模塊為大量高速的視頻數據提供緩沖區；基準時鐘產生模塊通過輸入基準視頻信號為系統提供精確的相關同步信號； d a編碼模塊在視頻處理模塊的控制下把數字視頻數據轉換成復合電視信號供顯示用： i ~ 2c總線控制模塊模擬i ~ 2c總線時序實現對系統中編、解碼晶元的初始化。
  2. Gps is a planet wireless conductance system which is global and all - weather, gps can offer high precision time orientation information to infinite user, clock precision reachs 10 ? 6 magnitude 。 not only changes traditional time method of quartz crystal clock, but also replaces wireless shortwave and even more lowfrequency signal and tv signal whose overlay range is limited and low precision, offers advantage to geology field task, achieve automatization and high precision of seismic flow observation

    利用gps授時信號全方位、全天候、連續性、實時性和高精度的特點，以gps信號為基準來校準本地時鐘（晶體振蕩時鐘或原子鐘） ，將gps接收機輸出信號的長期穩定度和恆溫晶振的短期穩定度相結合，應用大規模可編程邏輯器件，設計和實現了由pc104控制的實時在線授時系統。
  3. The concept of " timing " in the article is not the clock in our ordinary living, but syntheses which is made up of some frequency source in the signal generator ( such as cs atom frequency standard, rb clock & high accuracy quartz crystal oscillator ) which produces the primary frequency, the matching input interface and the matching output interface and controlling circuit etc. for example, bits is a kind of timing equipment, which is used to control the timing of some functions

    本文論及的「時鐘」概念不是指日常生活中使用的鐘表，而是由產生基準頻率的信號發生器（如銫原子頻率標準、銣鐘及高精度石英晶體振蕩器等）中的某種頻率源以及相配套的輸入、輸出介面和控制電路等組成的一整套具有特定同步定時功能的綜合體。如bits就是一種時鐘設備，它提供用在通信系統中控制某些功能的定時的時間基準設備，時鐘提供的信號稱為基準信號、定時信號或同步信號。
  4. 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。
  5. And a kind of 16 - step automatic selective programmable amplifying circuit is designed in volume resistivity measuring circuit, so as to handle sampling little and broad signal. the control and disposal system with the core of microchip at89c55wd is analyzed on chapter 4. main function unit such as the interface circuit of lcd display and keyboard, the interface circuit of micro - printer, real time clock ds12c887, and hardware anti - jamming technique are discussed

    本文還設計了以at89c55wd單片機為核心的控制處理系統的外圍介面電路及其軟體，對主要功能部分進行了分析，主要包括：鍵盤液晶顯示介面及界面設計、微型印表機介面、實時日歷時鐘晶元ds12c887 、單片機與單片機及單片機與上位機的通信設計以及控制系統硬體抗干擾措施等。
  6. The vehicle video traveling data recorder based on arm is an intelligent device that can be used for monitoring and recording the situations during vehicle traveling. this device is a important improvement on the conventional devices of similarity which only record the basic vehicle traveling status such as speed, engine temperature, brake operation and so on. it is remarkable that this device offers video recording function that circularly record the environment inside and outside the vehicle for tens of minutes

    基於arm的汽車視頻行駛記錄儀系統，除了按照國家有關標準，對汽車的行駛狀態的數據（速度、時間、以及各種控制的開關量）進行實時保存外，與同能產品相比，還更加註重視頻方面特有的功能優勢，通過軟體和硬體晶元協調工作實現了視頻圖像的壓縮和存儲，能夠循環存儲數十分鐘的視頻圖像。
  7. In a book written by an electronics expert who once participated in the us star wars program, the author discussed his findings in his studies on several fallen ufos unidentified flying object. according to him, ufos do not look very big from the outside, but after entering them, one might spend twenty minutes walking without reaching the opposite end due to a conversion of time and space. unlike an aircraft cockpit with dashboards and maneuvering devices, the ufos have only a few seats, surrounded by walls which themselves serve as jumbo tv monitors

    他在對多種墜落的幽浮外星人飛行器考察研究時發現，從外面看幽浮並不很大，但進去后卻走二十多分鐘走不到頭時空轉換，而且裏面沒有像飛機駕駛艙內那樣眾多的儀表及操縱裝置，只有幾個坐椅，四周的墻壁就是大屏幕觀測電視，內部也沒有復雜的集成電路，只有大的晶體塊，整個飛行器完全是在外星人頭腦發出的電磁波控制下運行。
  8. An idea is brought forth to design the total structure of the usb interface ip, the main control logic, the mcu interface ( the function is the same as the pdiusbd12 chip of the philips semiconductor ) and a dpll which is used to synchronize data and separate the clock. this paper also introduces packet recognition, transaction sequencing, sop, eop, reset, resume signal detection / generation, nrzi data encoding / decoding and bit - stuffing, crc generation and checking ( token and data ), packet id ( pid ) generation and checking / decoding,

    提出設計了usb介面電路的整體構架，設計了usb的主要控制邏輯和與mcu的互連的介面（此介面與飛利普的usb介面晶元pdiusbd12兼容） ，也設計了一個數字鎖相環（ dpll ）來同步數據和分離時鐘，並對同步模式的識別、并行/串列轉換、位填充/解除填充、 crc校驗/產生、 pid校驗/產生、地址識別和握手評估/產生做了具體的分析。
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