自整步器 的英文怎麼說

中文拼音 [zhěng]
自整步器 英文
self-synchronous device
  • : Ⅰ代詞(自己) self; oneself; one s own Ⅱ副詞(自然;當然) certainly; of course; naturally; willin...
  • : Ⅰ形容詞1 (全部在內; 完整) whole; all; complete 2 (整齊) neat; tidy; orderly Ⅱ動詞1 (整理; 整...
  • : Ⅰ名詞1 (步度; 腳步) pace; step 2 (階段) stage; step 3 (地步; 境地) condition; situation; st...
  • : 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 third, after theoretically analyzing, the following practicable methods are put forward : 1 ) automatically pick - up the synchronous information by analyzing the spectrum of intercepted video - leaking information ; 2 ) realizing the phase lock and the electronic image stabilization by integral - projection and differential - positioning ; 3 ) improving the effect of accumulation mean filter and the pectination filter by using electronic image stabilization ; 4 ) automatically adjusting image acquisition parameters by detecting the image entropy, therefore the quality acquired image is improved ; 5 ) to realize the quantitative test of a leaking extent, a standard test picture was designed. finally, a proto type for leaking information processing based on our techniques mentioned above and the virtual instrument principle was designed and tested

    在理論分析的基礎上,提出了以下的實用技術: 1 )用譜分析方法從截獲的信息中動提取同信息; 2 )用積分投影、微分定位的方法進行相位檢測,實現可靠的鎖相和電子穩像; 3 )將電子穩像技術用於重加濾波和梳狀濾波的濾波方法,改進了濾波效果; 4 )通過檢測圖像信息熵實現圖像採集參數的動調,改進了圖像採集的質量; 5 )設計了用於儀定標的標準測試圖,可以對泄漏信息進行定量檢測。
  2. During the procedure of system design and implementation, the author has made some innovative efforts such as : ( d establishing the user interest orientated model, the model receiving user interests continuously and conjecturing user interests by interaction with the user, accumulating user preferences in information demand, thereby achieving self - adaptive retrieval, ? roviding a feedback method which is based on the human - machine interaction, summarizing the user operations on the interface of result presentation, and designing an algorithm for capturing user operation behaviors, by which the changes in user interests and preferences can be learned potentially, ? ffering a method for user interest mining which can extract subjects of information confirmed by user, thereby conjecturing or predicting different kinds of expressions of the same interest or extracting the new interests or unexpressed interests, ? roposing a solution of personalized internet information retrieval based on the user interests in accordance with the above - mentioned work, the solution having very strong feasibility and practicality with taking user interest model as center, employing machine learning ( active learning and passive learning ) and data mining as tools, and being assisted with network robot,

    Piirs系統分析與設計過程中所做的創新性的嘗試主要有以下幾個方面:實現了基於用戶興趣的用戶模型,該模型通過與用戶的交互(主動交互和被動交互) ,不斷地接收用戶的興趣和推測用戶的興趣,積累用戶信息需求的偏好,實現適應的檢索;提供了一種基於人機交互的反饋方法,對用戶在結果呈現界面上的操作進行了歸納總結,設計了用戶操作捕獲演算法, 「隱性地」學習用戶興趣和偏好的變化;提供了一種用戶需求挖掘的方法,對用戶已確定的信息做進一的主題挖掘,由此推測或預測用戶同一興趣的不同表述方式或者挖掘出用戶新的或未表達出來的興趣;在上述工作基礎上提出了一套完的基於用戶興趣的個性化網路信息檢索的解決方案,該方案以用戶興趣模型為中心,以機學習(主動學習和被動學習)和數據挖掘為手段,輔以網路機人,具有很強的可行性和實用性。
  3. Abstract : based on the electronic focus technology development of state - of - the - art, the paper suggested a complete apparatus s cheme ofauto - focus based on sspd ( self - scanned photodiode array ) and 8098 singl e chipprocessor, giving out a focus criterion algorithm based on image high freq uencystatistics. the function of auto - focus of both reflected and transparent o pticalmicroscope was realized. meanwhile some corresponding problems such as sta bility of lightsource, step motor driving etc. were also discussed, which greatly improved the accuracy andreliability of the system

    文摘:在介紹與分析了國內外電子調焦系統的技術發展與現狀的基礎上,提出了一種基於sspd (掃描光電二極體列陣)與8098單片微處理動調焦的體技術方案,給出了基於圖像高頻成分統計的聚焦判識演算法,在此基礎上實現了反射式與透射式光學顯微鏡的動調焦,同時對系統的可靠性有關的其它相關問題如光源穩定性、進電機驅動等問題也進行了討論。
  4. In this dissertation, two kinds of optimization, methods are proposed. firstly, only these linking weights corresponding to the control rules that affect the control performance significantly are updated in order to reduce the compute works and speed up the training progress. secondly, the updating step is adjusted adaptively in accordance with the error and the change of error of the system based on the t - s model to get better performance

    針對模糊神經網路控制一般存在著在線權值調計算量大、訓練時間長、過度修正權值可能導致系統劇烈振蕩等缺點,提出了兩種模糊神經網路控制的優化方法:在線學習過程中僅對控制性能影響大的控制規則相關的權值進行修正,以減小計算量,加快訓練速度;基於t - s模糊模型,根據偏差及偏差變化率大小動態適應調節權值修正長,抑制控制輸出的劇烈變化,避免系統發生劇烈振蕩。
  5. For automactic programming of report form. the paper analyses general procedure of report form program generator and programming, which has been applied in practice

    摘要為了實現報表程序生成的動化,本文對報表程序生成體構思和實現方法作了分析探討,同時進行了初設計,現已投入使用。
  6. A pcc based stepping motor driven dual control governor for kaplan turbine is presented in this paper. the governor adds the function of adaptive control of blades and radius basis function cam network based on the current pcc based stepping motor driven single control governor

    該調速在當前pcc進式水輪機單調調速的基礎上引入了槳葉適應控制和基於rbf網路的協聯裝置,可定期對轉槳式水輪機協聯關系進行校正,保證水輪機始終運行在較高效率區。
  7. Aiming at weakness of the former excitation system of ball - mill machine synchronous motor in mill run factory, succeeds in digitization reconstruction for the excitation system by applying advanced siemens 6ra70 rectifier, s7 - 300 plc and profibus - dp fieldbus technique, constructs automation network of the workshop, and acquires better technique and economic benefit

    摘要針對選礦廠球磨機同電機原勵磁系統的缺點,運用西門子6ra70、 s7 ~ 300plc及profibus - dp現場總線技術對勵磁系統進行了數字化改造,構建了車間動化網路,取得了良好的技術和經濟效益。
  8. There is difference frequency measurement requirement for every part of pid regulating, difference between dynamic quality and static quality in response time and accuracy. according to these, it use the interrupt functions and high - speed counter of the simens s7 - 200 plc cpu226 basic unit and some peripheral circuit to measure frequency ; in software designed, the procedure frame of hydraulic - turbine governor and disperse process of parallel pid are analyzed, an improved pid algorithm is adopted to realize a pid regulation mode with variable structure and parameters ; the mechanical liquid - pressure system of the hydraulic - turbine governor is with electric - hydraulic converter unit of step motor. according to the drive character of five phase of response step motor, a variable frequency regulated voltage driver unit is designed in order to realize interface between plc and driver of step motor

    本文利用s7 - 200plc身的特點設計了頻率測量單元,根據pid調節各個環節的特點,以及調速動態特性、靜態特性對頻率測量的實時性和精度要求的不同,利用s7 - 200plc基本單元中內置的高速計數以及相應的外圍放大形、分頻電路,實現了水輪發電機組頻率的測量;在軟體上,對微機調速個程序框架、並聯pid的離散化過程進行了分析,選用改進的pid演算法實現了變參數、變結構的pid調節模式;調速的機械液壓隨動系統具有進電機電液轉換元件,採用五相反應式進電機,根據其驅動特性設計了變頻調壓驅動,實現plc與進電機驅動之間數字介面。
  9. The principles and characteristics of synchronous rectification ( sr ) are given, and advantages of self - driven sr in low power applications is detailed. review of several topologies which incorporate self - driven sr makes the constrains of conventional self - driven sr scheme apparent and thus a new scheme to drive srs is proposed. the developed single - winding self - driven synchronous rectification ( swsdsr ) scheme works properly in topologies that drive symmetrically the transformer ( push - pull, half bridge, . . ). it allows for maintaining the srs on even when the voltage in the transformer is zero, which is impossible to do in traditional self - driven approaches

    本文針對低壓/大電流輸出的小功率dc / dc變換,圍繞著變換的效率問題,分析了同流的原理和特點,重點闡述了驅動同流在低功率場合的優勢,在分析比較了多種與驅動同流相結合使用的電路拓撲后,指出常規的驅動同流方案限制了與之結合使用的電路拓撲的范圍這一局限性,從而給出了一種新穎的單繞組驅動同流方案。
  10. And power loss analysis of srs and the layout design related to srs are very important to the proper design. with a small signal mathematic model of half - bridge converter, the relationship between performance of power supply and frequency domain characteristics of the system is analyzed. based on the above study and some simulation the system design is completed

    文中在給出了結合單繞組驅動方案的對稱半橋變換穩態原理分析、同流管損耗分析暨選擇原則、同流管相關電路的布局設計后,建立了對稱半橋變換的小信號數學模型,分析了電源系統時域性能指標與頻域特性之間的聯系,在此基礎上完成了系統的設計。
  11. When unknown and bounded disturbance, parametric uncertainties and unmodelled dynamics exit at the same time, the system will automatically tune regulator parameters so as to guarantee robustness of speed synchronized control system and achieve indirectly position synchronized control

    對未知有界擾動、參數變化和未建模動態採用h _魯棒校正調節控制,可根據環境與特性變化定調節參數,有效抑制擾動、參數變化和未建模動態對系統同性能的影響。
  12. Aim at the dtc ' s blemish mentioned above and the direction of dtc technique development, the dissertation put great emphasis on the work as follows, with an eye to exalt dtc system function : ( 1 ) a new speed - flux observer of an induction motor is proposed to enhance the accuracy of flux observing, which is an adaptive closed - loop flux observer and different from the traditions. a new adaptive speed - observation - way is deduced out according to the popov ' s stability theories ; ( 2 ) to improve the performance of dtc at low speed operation, we have to exalt the accuracy of the stator flux estimation and a new way of bp neural network based on extended pidbp algorithm is given to estimate and tune the stator resistance of an induction motor to increase the accuracy of the stator flux estimation ; ( 3 ) digital signal processor is adopted to realize digital control. an device of direct torque control system is designed for experiment using tms320lf2407 chip produced by ti company ; ( 4 ) bring up a distributed direct torque control system based on sercos bus, sercos stand for serial real time communication system agreement which is most in keeping with synchronous with moderate motor control ; ( 5 ) the basic design frame of the hardware and software of the whole control system is given here and some concrete problem in the experiments is described here in detail

    針對上面提到的直接轉矩控制的缺陷和未來直接轉矩控制技術發展方向,本論文重點做了以下幾個方面的工作,目的在於提高dtc系統的綜合性能: ( 1 )提出一種新型的速度磁鏈觀測,新型的速度磁鏈觀測採用適應閉環磁鏈觀測代替傳統的積分從而提高磁鏈觀測的精度,並且根據popov超穩定性理論推導出轉速的新型適應收斂律; ( 2 )改善系統的低速運行性能,主要從提高低速時對定子磁鏈的估計精度入手,提出了一種提高定子磁鏈觀測精度的新思路? ?利用基於bp網路增廣pidbp學習演算法來實時在線地修正定子電阻參數; ( 3 )採用數字信號處理dsp實現系統全數字化硬體控制,結合ti公司生產的tms320lf2407晶元,設計了直接轉矩控制系統的實驗裝置; ( 4 )提出了基於sercos總線網路化分散式的直接轉矩控制系統, sercos ( serialrealtimecommunicationsystem )是目前最適合同和協調控制的串列實時通信協議; ( 5 )基本勾勒出個控制系統的硬體和軟體設計基本框架,詳細描述一些實驗中的具體的細節問題。
  13. Auto - disturbances - rejection controller and its parameter adjusting for asynchronous motor

    電動機的抗擾控制及其參數
  14. This kind of controller is easy to design and operate, and has improved convergence rates and less overshoot than pid controller, but has stable error. in order to improve the properties of the fuzzy controllers, fine - tune - rule fuzzy controller, fine - tuned parameter fuzzy controller and fuzzy - pi controller were designed respectively based on the simple fuzzy controller. then fuzzy logic inferential system is established by using toolbox of fuzzy logic in matlab7. 0. secondly, in simulink6. 0, through the instance of the template of s - function, the module of s - function for optimizing fuzzy control and corresponding control model are constructed, and the parameters of simulation are set

    這種控制易於設計、實現方便,較傳統pid控制有更快的響應速度和更小的超調,但其存在靜態誤差;為了進一提高模糊控制的控制特性,在此基礎上分別設計了可調控制規則模糊控制、參數定模糊控制和模糊- pid復合控制;然後利用matlab7 . 0模糊邏輯工具箱圖形用戶界面建立模糊邏輯推理系統,在simulink6 . 0系統模擬設計平臺中通過實例化s函數模板創建旨在優化模糊控制的s函數功能模塊,並構建模糊控制系統框圖模型,設置系統模擬參數,最終對系統進行動態模擬。
  15. Ltd founded in 1999, is a new high technology enterprise, specialized in researching, developing, manufacturing and selling of elevator weight - load system, elvator ic intelligent management system and the like of elevator dynamic static state data record management system and the like of elevator fittings. there are more than 100 experienced staff members including r d perpons, engineers and adminstrators who do their utmost to offer prompt, efficientand overall services for customers. our company manufactures six kinds of productions that hold autonomous. our company manufactures six kinds of production that hold autonomous intellectual property rights and has established long - term friendly cooperation with over one hundred ecactly elevator manufacturtures in china and abroad

    秦皇島開發區前景光電技術有限公司成立於一九九九年,是一家專業從事研製開發銷售電梯重量載荷控制系統電梯ic卡智能管理系統電梯遠程動報警安防管理系統和永磁同電梯專用變頻等電梯配件產品的高新技術企業。我公司擁有經驗豐富的科研工程技術管理人員一百余名,竭力為客戶提供迅速優質全面的服務。公司生產擁有主知識產權的九項專利產品,並與百余家梯生產企業建立了長期的友好合作關系。
  16. Through the control of 8098 monolithic processors and the power amplification function of the drivers, the signal is passed to the stepping - motor, which is connecting with load ( supports ) through the ball guide screw, and then supports are moved in axial direction. so automatic control of supports adjusting can be realized

    該系統通過8098單片機的控制,再經過驅動的功率放大作用,將信號傳給進電機,進電機通過滾珠絲杠與負載(支座)連接,以此帶動支座的軸向移動,實現支座調動控制。
  17. The real - time automatic gain control makes full use of the delay feature of signal channel, and controls the synchronization of adc precisely, and adjusts the signal gain in real - time, and compensates the error in digital domain, at last, this kind of technology expands the dynamic range of system adc

    採用的實時動增益控制電路利用信號通路的延遲特性,精確控制模數轉換,實時調信號增益,在數字域補償誤差,擴展系統動態范圍。
  18. According to the present problems and developing tendency of hydraulic turbine governor, four main issues of this field are studied in this paper. the content include hydraulic control system, frequency measurement unit, stability of the discrete control system, optimization of control parameters and self - adjusting pid control strategy based on fuzzy logic. several main achievement and results are obtained and shown as follows : the electric - hydraulic pilot valve driven by step - motor is firstly proposed, which solves the problem that the electric - hydraulic converter of hydraulic turbine governor hydraulic servo is prone to be stuck and blocked and improves the systemic stability greatly

    本文根據水輪機調節領域存在的問題和發展趨勢,對水輪機調速的液壓控制系統、頻率測量環節、離散調節系統穩定性與調節參數最優定以及適應式參數調pid控制策略進行了研究,得到以下主要成果和結論:首次提出了採用進電機驅動的進式電液引導閥,從根本上解決了水輪機調速電液隨動系統中存在的電液轉換元件發卡、堵塞問題,使電液隨動系統的可靠性大大提高。
  19. You might also want to customize report server e - mail delivery settings, set limits on the number of open connections, or adjust memory limits

    您可能還希望進一定義報表服務電子郵件傳遞設置、對打開的連接數設置限制或調內存限制。
  20. Finally, the production, which is designed and debugged all by myself, c band fine resolution low phase noise frequency synthesizer was introduced by module, including respective schedule, frequency distribution and phase noise experiment results. then whole circuit phase noise result, picture of spectrum with spur were presented, by which above theory was proved, analysis of the result was given, and the existing problem as well as methods to resolve it were motioned

    論文最後對己設計調試的樣機c波段小進低相噪頻率合成進行了分模塊介紹,包括各部分的原理框圖、頻率分配和相噪測試結果,然後給出了個樣機的相噪、雜散頻譜測試結果,對上面提到的理論進行驗證,並對結果進行了討論分析,提出了樣機現存的一些問題和幾點解決措施。
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