等時系統 的英文怎麼說
中文拼音 [děngshíxìtǒng]
等時系統
英文
isochronous system- 等 : Ⅰ量詞1 (等級) class; grade; rank 2 (種; 類) kind; sort; type Ⅱ形容詞(程度或數量上相同) equa...
- 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...
- 系 : 系動詞(打結; 扣) tie; fasten; do up; button up
- 統 : Ⅰ名詞1 (事物間連續的關系) interconnected system 2 (衣服等的筒狀部分) any tube shaped part of ...
- 系統 : 1. (按一定關系組成的同類事物) system 2. (有條理的;有系統的) systematic
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As a new domain in the computer application, embedded real - time operation system is widely concerned by its concision and efficiency
嵌入式實時系統作為計算機應用的一個嶄新領域,以其簡潔、高效等特點越來越多地受到人們的廣泛關注。In the hardware design, the paper completes modules ’ design like outside memory, patulous a / d, patulous d / a, rs232 communication, ecan communication, led control, keyboard control, distant control, emulation, reset, logic voltage switch, dsp supply power regulate and ac - dc power circuit, as well as room layout design like anterior panel, back panel etc. and dsp transfers data with peripheral equipments except outside memory using serial ports. besides, the whole circuit is configured in interrupt response. thus, it can meet system demand as well as take full advantage of tms320f2812 ’ s hardware resource. in the software design, the paper finishs programs like the interface programms intercommunicates with people, the distant control program, ad and da modules ’ control program, in addition, the paper select the velocity and acceleration state - feedback algorithm and is written in the program. the software design uses dsp integrate exploiting environment named ccs2. 2 of ti inc. as software instrument, and programs with the combination of c language and assembly language. moreover, in order to maintenance or modify the software expediently and shorten software ’ s exploitation time, the design adopt software modularization technique. finally, some air cylinder experiments are carried out to proved that the pneumatic controller is very practical
在硬體設計中,本文完成了片外存儲器擴展、 a / d擴展、 d / a擴展、 rs232通信介面、 ecan通信總線介面、液晶顯示控制、鍵盤控制、遠程控制、模擬、復位、邏輯電平轉換、 dsp工作電源校正電路和ac - dc電源等模塊設計以及控制器前面板、後面板等的空間布局設計。其中dsp與除外部存儲器的外圍設備之間的數據傳送全部採用串口通信,同時系統電路配置成中斷響應方式,這樣既滿足了系統要求,又充分利用了tms320f2812的硬體資源。在軟體設計中,本文完成了人機界面功能模塊、遠程控制模塊、 ad擴展模塊、 da擴展模塊、速度和加速度狀態反饋的控制演算法的程序設計。Combining with knowledge representation and automatic reasoning principle of ai and generic paradigm, the system has these main functions : ? it is able to show different solutions of typical example ; ( 2 ) it can automatically generate problems similar to the example for students to solve by providing them with clues ; ( 3 ) these problems can be studied by demonstrating the complete solution process and answers with the help of automated reasoning, or by providing real - time prompts to students concurrent with the students " solution processes with the help of automated reasoning ; ? it provides exercises and is able to call a program produced by the group ( the translator ), which transfers apla programs to executable programs so as to verify its correctness ; ( 5 ) it let teacher to add examples in the database ; etc. hi the course of systematic research, we deeply investigated the relevant knowledge of the system and made some innovation : about teaching content, we select par method as the main content
本系統選用薛錦雲教授的par方法為主要教學內容,應用人工智慧的知識表示和自動推理原理及泛型思想,使得系統具有以下核心功能:展示幾種典型例題的解;以泛型思想為指導,實現了無限題庫,可以自動生成與典型例題類似的問題給學生求解並給予提示;對于這些題目,計算機可以自動推理出由問題到程序的全過程供學生學習;也可通過自動推理根據用戶的實際做題情況實時給出提示,互動式地幫助學生學習演算法程序設計;學生可以從問題庫中獲得練習,並調用轉換器,將自己的apla程序轉化為可執行語言程序,運行以檢驗其正確性;對教師而言,可以對已有的實例庫、問題庫進行添加操作等。在系統的研製過程中,我們深入研究了系統的各方面相關知識,並進行了多方面的創新:在教學內容方面,首次選用par方法為主要內容。First, under such background as satellite, spaceship, and aos system, with the characteristics of real - time system and distributed system, this paper is devoted to the vxworks kernel analyzing, which includes scheduling methods, kernel clipping design. then, on the basis of 1553b data bus technology and vxworks drive management theory, a 1553b driver is designed for the vxworks
首先,論文在研究了分散式實時系統特點和新一代航天星載、飛船及未來空間實驗室等應用系統基礎上,深入分析了航天應用系統目標機運行的主流操作系統vxworks內核的任務調度策略,論述了內核剪裁的原則,劃分了vxworks操作系統的功能界面,並對其進行了剪裁和優化。Analysis software. the analysis show : the gyroscope effect to the flywheel rotor ' s and the shaft ' s vibration character under high rotate speed should be considered. at this time, the system ' s normal frequency is the function of rotate speed ; the amplitude passing through the resonance field can be lowered obviously by improving the effective damping of the electro - magnetic bearing
建立了高速旋轉狀態下,採用磁軸承作支撐的飛輪轉子和轉軸的動力學模型,給出了有限元法在此問題中的具體應用,並利用i - deas有限元分析軟體具體分析了飛輪系統的共振頻率、系統振型,以及對偏心激勵的響應,分析表明:對于高速旋轉的飛輪轉子和轉軸,應考慮陀螺效應對其動力學特性的影響,此時系統的固有頻率是轉速的函數;通過提高磁軸承的等效阻尼可顯著降低系統通過共振區域時的振幅。The frequencies of translational actuation influence the stability of the tethered mass system. when the frequencies approach the natural frequency of the system, the period of energy exchange decreases and the amplitude of the pendulum increase. when the frequencies equal to the natural frequency of the system, resonance appears
變幅激勵的頻率對系統穩定性有較大影響,當變幅激勵頻率接近系統固有頻率時,系統面內外能量交換周期減小,擺幅增大;當變幅激勵頻率等於系統固有頻率時,系統面內外均出現共振現象。Then according to system simulation technology, the overall air - to - ground attack simulation plan is made with the thought of models and layers. after that, the mathematical models of main parts in the simulation are made such as aircraft body, propulsive system, flight control system, fire control system, bomb and air - to - ground missile. on the basis of these mathematical models, using the object - oriented design methodology, a set of air - to - ground attack real - time visual simulation software is developed. this software can be used to aid aircraft design, research of air - to - ground attack tactics and flight training
本文首先介紹了現代戰爭中空對地攻擊的技術裝備及其特點,計算機模擬技術的發展以及面向對象的軟體設計思想;而後使用系統模擬技術,依據分層、模塊化設計思想,制定了空對地攻擊模擬系統總體設計方案;之後根據目前技術狀況,建立了戰斗機機體、推進系統、飛控系統、火控系統、航空炸彈、空地導彈等子系統數學模型;在此基礎上,利用面向對象的軟體設計思想,在基於pc的平臺上開發了一套對地攻擊視景模擬軟體,實現了戰斗機對地攻擊實時視景模擬。This system presents us various kinds of user interfaces ( such as thin - client ui ), further more, to facilitate further research and provide a scientific foundation to ensure flight safety and daily monitor, other extended interfaces ( including network interface, data analysis interface, decode interface and etc ), are also provided by the system
該系統由數據採集、譯碼、實時數據處理、實時監控模擬再現等模塊組成,系統還提供用戶介面、網路介面,數據分析介面,譯碼擴展介面等。該系統可以應用於航空公司機務維修等部門,結合地空數據鏈系統,為保障飛機飛行安全以及日常監控提供科學的依據,同時也為飛機油耗優化、技術評估等提供數據支持。This system can well and truly reflect the real - time circulation status and energy - loss distribution, then provide the theory basic to economize on energy and direct how to operate power units economically. at the same time, the system is based on web and expediently combined to mis system with strong real - time character and alternation, which provides for long - distance automated manage of power industry
整個系統集合了機組運行監測、經濟性分析、運行優化指導等功能,能及時、準確地反映機組當前運行情況及能損分佈,為電廠的節能診斷提供依據,指導電廠的經濟運行;同時系統基於web模式,緊密地和廠內mis網路相聯接,使用方便,具有較強的實時性和交互性,為電力行業的遠程自動化管理提供了有力的幫助。Meanwhile, the composition of the motor system is also given while the motor works as a starter. a mathematics model for doubly salient permanent magnet motor is constructed from the view of conversation of energy. on the base of linear disposal for permanent magnetic flux, some control strategies are put forward such as control mode i, angular advance control mode and control mode ii
首先介紹了所研究的雙凸極電機結構以及電動運行時系統構成情況,從能量守恆的角度構建了永磁式雙凸極電機的數學模型,在永磁磁鏈線性化處理的基礎上提出了控制方式一、角度提前方式、控制方式二等電動運行方式,並建立了各電動運行方式的模態方程,是對雙凸極電機進行進一步研究的基礎。The use of mcu makes the induction cooker intelligence, mainly offers good man - machine interface, power automatic control and temperature automatic control, time control as well as various automatic detections alarm etc. this system covers many fields such as electronics, mechanicals, magnetic, algorithms etc. mcu program structure divides into two parts as main program and timer interrupt service program, after many times " testing and running, the program runs steadily and reliably
單片機的使用讓電磁爐實現了智能化,主要包括提供良好的人機界面、功率自動控制、溫度自動控制、定時控制以及各種自動檢測報警等。該系統覆蓋了電、機、磁、算等多個領域的知識。單片機程序結構分主程序和定時器中斷服務程序兩個部分,經過反復試驗運行,程序運行穩定可靠。They ensure the uninterrupted supply of high - quality power to such critical applications as telecom and media centers, timing systems and drug testing processes
這些設備確保為電信和媒體中心、計時系統和違禁藥品檢測程序等關鍵環節提供高質量的不間斷電源供應。Although many research results have been provided, there still are many fields need further research, such as remote access delay, system communication, false sharing of data
雖然已有許多研究成果,但仍在遠程訪問延時、系統的通訊量、數據的假共享等問題的解決方面不盡人意。During the course of information recommending, the thesis combines content - based filtering with collaborative filtering to find particular information for each user, and it also presents different collaborative filtering strategies. in personalized information retrieval, the thesis takes advantage of the user ' s profile which describes particular user ' s information needs to filter useful information from the retrieval results for particular user and to enhance the accuracy of retrieval
與以往系統不同,系統無需用戶直接反饋,而是通過其對文檔的訪問頻度、駐留時間及操作行為等來隱式獲取用戶的評價信息;同時,系統也利用用戶候選興趣特徵向量來記錄和累計用戶潛在的、非主要的興趣的變化過程,精度更高。Pole, thin plate, thin shell in the electromagnetic elastic system, etc. when there is no machinery to restrain, the system has an unstable movement mode at least, and while exists restrain, after up to a certain critical value in electric current or the magnetic fielding, buckling must take place in the system
電磁彈性系統中的桿、薄板、薄殼等,當沒有機械約束時,系統至少存在一個不穩定的運動模態,而存在約束時,當電流或磁場達到某一臨界值后,系統將發生屈曲。With the rapid development of real - time computing technology, the real - time system became crucial control component in more and more mission critical applications, such as medical devices, aircraft flight control, weapons, and nuclear systems
隨著實時計算的功能日益強大,應用成本的逐漸降低,實時計算技術廣泛應用於航空航天、交通運輸、核電能源和醫療衛生等諸多任務關鍵實時系統。In the second section, we study the multiplicity of weak focus in system ( 1 ) when b = 0, then system ( 1 ) becomes : in [ 7 ], the authors show that system ( 2 ) has rich global dynamics depending on all parameters, including a weak focus with multiplicity at least 2, but the authors did n ' t calculate the multiplicity. in the second section of this article, we calculate the order of the weak focus with formative series method and mathematica 4. 0, and show that the order of the weak focus is two for some parameters. we also get the stability, then by hopf bifurcation theorem, we show that system ( 2 ) has at least two limit cycles for some parameters
而且我們選擇了系統的原參數中的二個作為分支參數,可以使系統( 1 )進行bogdanov - takens余維2普適開折,從而證明系統( 1 )同宿軌的存在性。第二部分我們討論系統( 1 )當b = 0時細焦點的階數。當b = 0時,系統( 1 )為一文7對系統p )進行了全參數分析得到系統)豐富的全局動力學性質,但當參數取某些值時系統間出現了階數大於或等於2的細焦點,文沒有計算該細焦點的階數。Simultaneously the thesis gives a detailed introduction to estimation of software cost ; document administration ; the plan of quality administration and its realization and the design of database
同時文中詳細介紹了軟體成本的估算、文檔管理和質量管理等子系統的設計與實現,及數據庫的設計。The first class methods are the classical frequency domain - based equivalent system methods ( f - esm ) which recommended by mil - f - 8785c and mil - std - 1797a. five longitudinal low order equivalent systems and fourteen lateral ones are discussed in detail and some pieces of advice are given. also conduct an investigation in the time domain - based equivalent system methods ( t - esm ). and for longitude short period movement, two least square ( ls ) identification methods of estimating its parameters are studied
研究了求取高增穩飛機的低階等效系統的幾種方法:研究了經典的頻域等效系統方法,針對縱向5種、橫向14種構型的低階等效系統進行了擬配實踐,並提出一些有益的看法;以頻域等效系統方法為基礎,提出了時域等效系統新方法;以最小二乘辨識為基礎,提出了兩種縱向短周期低階等效系統時域辨識方法(等效延遲時間_ q參與或不參與) 。Secondly, introducs the main theory of sir ( stepped impedance resonator ), some characteristic of the sir has been discussed, such as resonance conditions, resonator length, spurious ( higher order ) responses, and equivalent circuits
其次,介紹了階躍阻抗諧振器( sir )結構和相關原理,同時系統的討論了sir一些基本特性如:諧振條件、諧振長度、雜散頻率和等效電路等。分享友人