集中運算器 的英文怎麼說
中文拼音 [jízhōngyùnsuànqì]
集中運算器
英文
central processing unit- 集 : gatherassemblecollect
- 運 : Ⅰ動詞1 (物體位置不斷變化) move; revolve 2 (搬運; 運輸) carry; transport 3 (運用) use; wield...
- 算 : Ⅰ動詞1 (計算數目) calculate; reckon; compute; figure 2 (計算進去) include; count 3 (謀劃;計...
- 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
- 集中 : concentratecentralizefocusamassgroupmassingput togather
- 運算 : [數學] operation; arithmetic; operating
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Second, the starting and stopping behaviors under disturbed condition are analyzed and calculated by using the dynamic concentrative parameter model, which gives some advice to better prescribe refrigeration system and set theoretic foundation for carrying out automatic control of refrigeration system. third, the normal running process is analyzed and calculated by means of rational matching theory, which gives some advice on how to better understand the parameter change under steady state and the affection of inlet - parameter on evaporator. fourth, the simulation software with dynamic characteristic is designed, which can be applied to calculate thernio - parameter of cryogen, air humidity and frost thickness under different initial and boundary conditions, and to carry out dynamic simulation under conditions of dryness, wetness and frostiness, at the same time, to achieve detection and simulation at any stage from starting to stopping
本文的主要內容如下: 1 )對翅片管蒸發器結構特點進行分析,選取適當的微元控制體,就干、濕和霜工況下對每個微元分別進行傳熱傳質分析,基於經驗關系式確定霜的有關參數,對于霜工況下的霜生長建立模型,經適當假設,運用質量守恆、能量守恆和動量守恆方程建立適合動態模擬的蒸發器數學模型,為系統模擬奠定基礎; 2 )對蒸發在大擾動下的開、停機過程,運用動態集中參數模型進行分析和計算,為更好地描述製冷系統運行的全過程奠定基礎,同時也為製冷系統實現自動控制提供一定的理論基礎; 3 )對蒸發器正常運行過程,運用動態分佈參數和參數間定量耦合的觀點來分析和計算,為更好地了解穩態工況下各點參數的變化情況及各入口參數對蒸發器動態特性的影響即蒸發器性能對各參數變化的敏感性; 4 )編寫翅片管蒸發器動態特性模擬計算程序,可以計算不同邊界條件和初始條件下的製冷劑熱力參數、空氣溫濕度和霜厚度分佈場,實現對翅片管蒸發器在干、濕和霜工況下的動態模擬。The distributing design reduce effectively spending of cpu. through following experiments in practice, the outcome indicate that this nav system can accomplish the reckoning on data information of vehicle and has the supernal precision
這樣有效的減少主處理器的開銷,集中進行卡爾曼濾波數據融合運算。測試結果表明該設計能夠實時完成對車輛的實時經緯度的測算,具有較高的精度。The former part, with the analysis and research of the meaning and the extension and the characters of industrial design, demonstrates the possibility and inevitability of applying computer and internet to aid industrial design and illustrates the state - of - the - art and usual technology. by analyzing the new development and new requests of caid ( computer - aided industrial design ) technology, the article raises the possibility and inevitability of developing internet - based icaid ( intelligent caid ) system, presuming the models and methods and illustrating the key technology of building iicaid, which includes extracting the knowledge of design and the knowledge of user and building the correlative model and studying and developing internet - based cooperative work of form design and the design and realization of software and hardware of iicaid system. finally with analyzing and summing up the correlative knowledge of design and the knowledge of user in nc machine tools form des ign and concluding and researching the results of the correlative experiments, the article raises and explains the researching points and key technology
論文分為上下篇,上篇通過對工業設計內涵、外延的分析和研究,提出了運用計算機、網際網路等智能機器、信息技術輔助工業設計的可能性和必然性以及目前的發展狀況和一般技術;分析了目前caid技術的新發展和新要求,提出了發展基於網路的智能化caid系統的可能性與必然性,並大膽推測了實現的方法和模型;歸納建立iicaid系統所需的關鍵技術,即工業設計的領域知識和用戶知識的提取及建立模型;網路協同造型設計的規劃、集成和優化;系統的軟硬體設計和完成;最後,通過對數控機床造型設計相關領域知識的分析和整理,以及相關的實驗的總結和研究,提出和解釋了在數控機床造型設計中運用iicaid技術的研究重點和關鍵技術。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。The digitizer based on pxi bus uses fpga ( field programmable gate array ) to implement 256 points, radix - 2 dit fft ( fast fourier transform algorithm ). the design uses pipelining for fft processing and can accomplish sampling and processing signals of two channels at the same time. in the signal acquisition circuit, - a / d convector is used to enhance the precision of the signal sampling
在本設計中,採用fpga ( fieldprogrammablegatearray )實現了256點基2dit演算法復數fft ( fastfouriertransformalgorithm快速傅氏變換演算法)處理器,具有較高的速度和運算精度fft ,設計採用流水線處理方式大大的提高了處理速度,可實現對兩個通道輸入信號的并行採集與處理。This control system adopts creditable plc for real control ; it sends many simulating signals collected by old sand temperature of inlet, suction opening temperature of double disk, inner sand temperature of double disk, current of mainframe and current of fan ; meanwhile, the operation signal and switching value signal outputted by material movement transducer is inputted to switching value module of plc ; it gets evidence of water feeding after cpu account ; the operation result of cpu is outputted by switching value of plc to control unlock combination of coarse, middle and thin water feeding electromagnetically operated valve and then gets different water feeding quantity
該控制系統採用高可靠性的plc可編程序控制器進行實時控制,傳感器所採集的入口舊砂溫度雙盤抽風口溫度雙盤內砂溫主電機電流及鼓風機電流等模擬量信號直接輸入plc的模擬量採集模塊,同時加砂設備運轉信號及加砂設備物料移動檢測傳感器發出的開關量信號輸入plc的開關量模塊,由cpu獲取經運算而得到加水計算依據, cpu運算結果直接由plc的開關量輸出控制粗中細加水電磁閥的開啟組合,而得到不同的加水量。Secondly, some encryption algorithms are introduced, with the analysis and comparison for these encryption algorithms, the author designs an appropriate project to accomplish the end - to - end encryption. thirdly, this paper accomplish the design of an encryption scheme which combining the strongpoint of the rsa algorithm and the idea algorithm. the main process is as following : first, input the digital signal to the encryption device, and then the digital signal exclusive or with the keying sequence which is generated by key stream generator ( ksg ) and the ksg is based on the idea encrypting and deciphering algorithm, the secret key synchronization is also studied
本課題主要研究的內容是數字集群通信系統加密機制的研究,首先介紹了數字集群通信系統的安全保密機制,講述了單向和雙向鑒權的過程、單呼和群呼的空中介面加密過程及其密鑰的選用和管理,特別介紹了端到端加密;然後介紹了幾種常用的加密演算法,通過分析其優劣,提出了端到端加密的解決方案;最後完成了基於rsa演算法和idea演算法的數字集群通信系統加密方案的設計,其具體過程為將經過數字信號送入加密器里,和以idea加密演算法為基礎設計的密碼流發生器( ksg )產生的密碼序列進行加解密運算,並且研究了此加密過程的密碼同步問題。In the selective calculation module, the calculations of heat exchanger design, the analysis of pipe setting patterns are combined with the database so that the selective calculation sub - system is developed. considering the factors such as uniform flowing of the fluid, smaller inner radius of the shell, the well heat exchanging effect and saving materials, the pipe setting module is developed based on the designing data. in the module for automatically generating parts and assembly drawings, the database of pattern sizes and the drawing libraries are established according to the classifications and series
在選型計算模塊中,通過換熱器設計計算、管束組件的布管方式分析、數據庫的檢索,開發了浮頭式換熱器輔助設計計運算元系統;在布管定型模塊中,按照確保殼程流體流動均勻、且換熱器殼體的內徑較小、管程殼程間換熱良好且節省材料的原則,根據設計計算參數建立了自動布管定型系統;在零部件圖和裝配圖自動生成模塊中,分級分類地開發了浮頭式換熱器所有零部件圖和裝配圖的圖紙尺寸數據庫和圖庫,運用「死圖活尺寸」的開發理念,開發了圖形自動生成與管束參數化設計的集成系統。Aiming at some problems about fly vision applying to imaging guidance, such as, algorithm and realization of motion - detectors array, image mosaic technique of imitating compound eyes, target detection of compound eyes, realization of compound eyes in missile, and so on, the main contents of this paper are as follows : 1
本文針對蠅視覺在成像制導應用中需要解決的問題,如蠅復眼運動檢測器陣列的演算法及實現、圖像的仿復眼鑲嵌整合、蠅復眼目標檢測機理、蠅仿生復眼的結構及在導彈上的配置等,集中研究了以下幾方面內容: 1In accordance with the technological difficulties encountered in the process of insulation supervision based on the dissolved gases analysis ( dga ), several kinds of model and method are presented to improve the reliability and precision of fault diagnosis of the power transformer. main research content includes : by deeply studying the common transformer faults diagnosing methods, such as three - ratio methods and improved electrical committee agreements, several shortcomings such as uncertainness judgment when the fault reasons, phenomenon and principles come out together while can not consistent to each other etc. for this reason, the old methods can not fully meet the need to engineering practical application. considering fuzzy relationship matrix can fully represents the causality between fault symptoms and fault types, when diagnosing complex equipments with multiple symptoms and fault causes such as power transformer, a synthetic fuzzy diagnosing model is firstly proposed to diagnose transformer ' s insulation faults based on dga in this paper
本文針對應用油中溶解氣體分析方法進行變壓器絕緣監督時所遇到的主要技術難點,提出了提高變壓器故障診斷的準確性、可靠性的幾種模診斷方法,主要研究內容有:通過對判斷變壓器故障常用的三比值法和改良電協研法的深入分析,其診斷準確率較高,但對故障原因、故障現象和故障機理間同時存在不確定性和模糊性的變壓器等電氣設備的故障診斷,難于滿足工程應用的需要;在處理變壓器等結構復雜設備的多癥狀、多原因故障診斷時,模糊關系矩陣可以全面反映這種癥狀與故障類型間的因果關系,進而提出了變壓器故障診斷的模糊綜合診斷模型;同時作者還深入分析了模糊運算元的特性;針對常用的模糊評判結果的模糊集的集化方法的不足性,提出了將模糊綜合診斷與模糊規則推理結合起來進行故障診斷的方法,能達到較好的效果。This thesis is composed of seven chapters : the first chapter is the introduction of this thesis. it is summary of the background, the technology method, and the significance of research ; in the second chapter, the writer propounded the new method for speed regulating to realize the mainland method. the introduction of the foundation of fuzzy control is the content of the third chapter. the main content of the fourth chapter is the theoretical foundation of fuzzy control ; in the fifth chapter, the writer propounded a kind of self - adaptive fuzzy controller according to the defnult of the conventional fuzzy controller and its properties and structure are alse illustrated at the same time ; the main content of the sixth chapter is the design of sa fuzzy controller ; the seventh chapter is the summary of hardware and software of vfsr for controlling system
本論文共分七章:第一章是緒論,簡介課題研究的背景、技術方法及研究意義;第二章簡單分析了傳統pid調速技術存在的問題,提出新的調速實現方案;第三章給出了模糊集合論中的一些基本概念、運算定理等;第四章主要介紹模糊控制的工作原理,並指出常規模糊控制的缺陷及其多種改進方案;在第五章中,作者根據常規模糊控制器的不足,設計了自適應模糊控制器,並闡述了它的性能結構和工作原理;第六章的主要內容是自適應模糊控制器的設計;第七章是船模純粹自航試驗調速系統的實現。Advanced fpga technology is introduced to improve the integration of digital circuits, and all digital circuits in the original module are integrated in the fpga chips, which could not only reduce the cost, but also improve the reliability and measurement precision of the circuits. high speed digital signal processor ( dsp ) is selected as the coprocessor instead of scm ; it can receive all kinds of commands sent from vxi, analyze and execute the commands, harmonize each section of the module and process the data. higher - conversion - speed comparator chip is adopted to convert the input signals being measured into square waveform signals which could be identified by fpga chip ; it can expand the measurement range of frequency dramatically
本文在原有vxi總線四通道計數器模塊的設計基礎上,通過對原模塊缺陷的分析,採用一些新的技術和新的電子器件來重新設計該計數器模塊:採用最新的fpga技術來提高數字電路的集成度,將原模塊中的所有數字電路全部集成在fpga晶元中,這樣不僅能節約成本,還能提高電路的可靠性和測量精度;採用高速的數字信號處理器( dsp )取代原有的單片機作為協處理器,來接收vxi發來的各種命令,分析命令、執行命令、協調模塊各部分的工作以及對數據的處理;採用轉換速率更高的比較器晶元將輸入的被測信號轉換為fpga晶元能夠識別的方波信號,能極大提高測量頻率的范圍;採用d / a轉換晶元和隔離運算放大器得到隔離通道所需的比較電平,該比較電平值能夠根據實際需求進行設置,能增強模塊的使用靈活性。Therefore, based on formers " research and recurring to the rather strong ability of holding mistakes possessed by rough set theory, this paper present a new attribute reduction arithmetic as well as an improved value reduction arithmetic based on the combination of rough set theory and duality boolean calculation, and use it to handle the reduction progress of the decision table including all kinds of fault cases which is established by considering the signals of protection relays and circuit breakers, then form the general mixed knowledge model and bring up an idea about automatic production of decision table
為此,本文在前人研究的基礎上嘗試藉助粗糙集理論所具有的較強的容錯能力,提出了基於粗糙集理論與二值邏輯運算相結合的屬性約簡演算法以及改進的值約簡演算法,並將其應用於由斷路器和保護為條件屬性,考慮各種故障情況所組成的診斷決策表的約簡過程中,形成了混合策略知識模型,同時提出了診斷決策表自生成的基本思想。The developed countries are rich in skilled work force and capital resources, so they can concentrate on producing many technology - intensive products such as computers, aircrafts, and so on
發達國家有豐富的技術人才和資金來源,所以他們能夠集中精力生產許多高科技產品如計算機,航空運輸器等等。After that, the chapter illuminates the asic project of synchronization. at last, the chart demonstrates two different implementation schemes that are hardware and asip ( application specific integrated processor ) for field sync correlative calculation
之後闡述了同步的asic實現,其中以場同步相關運算為例,提出了硬體及asip (應用專門指令集合處理器)的兩種實現方案,並對兩種方案進行比較。In the process of selection about cpu, i compared several projects, and select the project of " mcu based risc technology " to research. the project apply the mpc555 chip of motorola company. and emphasize to research the application of spi and canbus. 4. as the part of the hardware platform, the i / o model block is researched, and some new hardware design and selfchecking measure applied in it
3 .在邏輯運算模塊中,對保護cpu提出了幾種方案進行了比較,本文採取了"基於risc (精簡指令集結構)技術的微處理器"方案進行研究,該方案採用的是motorola公司的mpc555晶元,並重點對spi (串列外圍介面)和canbus現場總線在硬體平臺中的應用進行了探討。This microcomputer protector for the motor uses the dsp56f807 which is the series of the motorola ’ s dsp56800 as its kernel processor. the chipset not only has single chip ’ s great steering capability but also has digital signal processor ’ s arithmetic capability. it also has reasonable price and high performance
本微機保護裝置採用了motorola公司生產的dsp56800系列中的dsp56f807作為核心處理器,該晶元集合了單片機和數字信號處理器的優點,既具有強大的運算能力,又具有強大的控制能力,性能較強,價格也比較適當。The measuring instrument for blade resonant frequency mainly consists of a front end circuit, a signal collecting circuit, and a coiilputing and displaying circuit. this paper provides a detailed hardware diagran, software flow chart and design process, expounds the operation and calibration of the instrument, and analyses the measuring data in detail according to different conditions
葉片共振頻率測試儀主要由前置電路,信號採集電路及運算和顯示電路組成,文中給出了詳細的硬體電路圖、軟體流程圖及設計過程,闡述了該儀器的使用和校驗方法,並針對不同的狀況對測量數據進行詳細的分析。In the analog ic, one of the typical circuits is operational amplifier. therefore, the design of low - voltage and low - voltage operational amplifier is very necessary. while realizing low - voltage and low - power, it must be noticed for the implementing of the main function of the circuit. because the low supply voltage affects performances of circuits, it is not very good for just implementing low - voltage and low power but not implementing the good performances
在模擬集成電路中,運算放大器是最典型的電路之一,所以設計低電壓低功耗的運算放大器是非常必要的。在實現低電壓低功耗的過程中,必須考慮電路的主要性能的實現,因為電源電壓的降低將影響電路的性能,只是實現低壓低功耗而不實現良好的性能是不大妥當的。By designing the circuit structure of preamplifier and selecting new elements such as ultra low noise operational amplifier and linear opto - coupler, some difficulties in eeg acquisition is overcome and the common mode rejection ratio ( cmrr ) of preamplifier is highly increased. so eeg can be amplified and detected well
通過對前置放大器等電路結構的精心設計,選用超低噪聲的集成運算放大器以及線性光耦合器等新器件,克服了腦電信號採集中經常遇到的一些困難,使前置放大器具有較高的共模抑制比,從而能夠較好地放大檢測出所需的腦電信號。分享友人