數字反饋系統 的英文怎麼說
中文拼音 [shǔzìfǎnkuìxìtǒng]
數字反饋系統
英文
digital feedback system- 數 : 數副詞(屢次) frequently; repeatedly
- 字 : Ⅰ名詞1 (文字) character; word 2 (字音) pronunciation 3 (字體) form of a written or printed ...
- 反 : Ⅰ名詞1 (方向相背) reverse side 2 (造反) rebellion 3 (指反革命、反動派) counterrevolutionari...
- 饋 : 動詞(饋贈) make a present of
- 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 ...
- 數字 : 1. (表示數目的文字; 表示數目的符號) figure; digit; numeral; character; numeric character 2. (數量) quantity; amount
- 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
-
The control system cpu process remote control for the equipments mentioned above through prodibus - dp, receiving operation and handclap status which feed back by control equipment, using the style of control word in the data format
通過profibus ? dp總線,控制系統cpu對上述控制裝置進行遠程控制,並接收控制裝置反饋的運行狀態和故障狀態,數據格式採用控制字方式。Compared with primary second sampling a / d converter, it realizes digital feedback by digital circuit and does n ' t adopt high accuracy d / a converter with complex technology and high price. it has many excellent qualities, such as high - integration, high - accuracy, widely used, low - price. it can be widely used in test and measure system, scientific instrument, iatric instrument, automatic test system etc. so popularizing this new type a / d converter has very significant meaning
與原有的兩次采樣a / d轉換器相比,用數字電路實現數字反饋可不用技術復雜、價格昂貴的高準確度d / a轉換器,具有集成度高、準確度高、適用性強、價格低等優點,可廣泛應用於測量測試系統、科學儀器、醫療儀器、稱重儀器、自動測試系統等。Redundant detecting method of feedback signal in hoist digital control system
提升機數字控制系統反饋信號冗餘檢測演算法( 4 ) to record the running situation. and this software was developed by c + + under microsoft vc + + 6. 0 and is composed of 5 modules : the initial module to finish the video card and i / o card initializations ; the start - stop module to create and destroy the thread used to supervise light room and process image ; the image - capturing module to capture the image from ccd to ram ; the image processing module to get classified information through analysis ; the signal i / o module to send the signals to the outside and also to send outer information to the inside ; the system log module to record the running situation of the system and the quantity of detected eggs
系統由5個模塊組成:初始化模塊完成圖像採集卡和數字量i o卡的初始化;啟動停止模塊建立和消亡用於監控光室狀況和進行圖像處理與分析的線程;圖像採集模塊將光室中所成的像通過ccd經由圖像採集卡採集到主機內存中;圖像處理模塊對主機內存2001碩士論文摘要中的圖像進行分析,得出所需要的分級信息;信號1 / 0模塊將得出的分級信號送出至計算機外部,同時也將計算機外部的控制反饋信息傳至計算機內部;系統日誌模塊記錄系統的啟動運行情況和當前系統檢測鴨蛋的數量。Firstly introduces the requirement of networked manufacturing, and then illustrates the key technology of manufacturing execution system supporting networked manufacturing, such as distributed numeric control, tools engraving and identifying technology, and plan scheduling and dispatching in terms of information feedback
摘要介紹了網路化製造對製造執行系統的需求,介紹了網路化製造環境下製造執行系統的關鍵技術:分散式數字控制技術、工裝標刻及自動識別技術以及基於信息反饋的計劃調度等。Become a kind of new electronics circuit - current - mode circuit. it is replacing the traditional design method of the voltage - mode in the high frequency high - speed signal processing realm 。 this thesis mainly discussed the modified second - generation current conveyors based on the current - mode kinds of new cuicuit components, they are stronger modified standard current - mode parts in fuctions on this foundation. mainly including the modified differential difference current conveyor ( mddccii ) 、 the fully balanced second generation current conveyor ( fbccii ) 、 ( full balances ) four - terminal floating nullor ( fbftfn ) and the current differencing buffered amplifier ( cdba ), they are all function very strong standard current - mode parts, they all can provide some circuit functions of better than general operation amplifier, because they have the voltage importation and the current importation, therefore use it since can carry out the voltage - mode signal processing circuit expediently, can also carry out the current - mode signal processing circuit expediently, and have to increase the benefit bandwidth to accumulate more widely than the voltage - mode, but have their advantages more according to the current - mode filter of the modified current conveyor, because it constitutes in brief, the filter wave function is stronger and they are better than in general use operation amplifier of many advantages, be easy to composing for example 、 high speed 、 frequency bandwidth 、 the power supply voltage requests low 、 consume small, the impedance is different from etc. advantages, otherwise they have biggish dynamic range, and flexible circuit synthesize, so they are the best active parts
從第二代電流傳輸器ccii入手,重點研究了以下幾種改進型的第二代電流傳輸器:改進的差動差分電流傳輸器mddccii 、全平衡第二代電流傳輸器fbccii 、多輸出四端浮地零器ftfn 、全平衡四端浮地零器fbftfn 、電流差分緩沖放大器cdba的電路結構及其模型。然後在此基礎上系統地研究了基於這幾種改進型的第二代電流傳輸器的濾波器的設計方法,主要方法和結果如下:利用mddccii設計了差分式連續時間電流模式低通、帶通濾波器;電流模式跳耦結構考爾低通濾波器;利用fbccii設計了帶通二階節濾波器及電流模式雙二階通用濾波器;設計了基於多輸出端ftfn的電流模式二階通用濾波器電路;通過數字化開關選擇的基於fbftfn的電流模式通用濾波器;設計了基於最少個數電流緩沖放大器(兩個cdba )的多功能通用電流模式濾波器及其在非理想因素情況下分析。設計濾波器的主要方法是採用級聯設計、運算模擬(信號流圖法)和反饋設計(跳耦法) 。The pid control of output voltage feedback is easy to give attention to static and dynamic performance of the control system. output performance of inverter of ups is improved when rms of output voltage feedback is added to pid control system. the hardware and software is designed in order to achieve the digital pid control of inverter of ups
設計了用於逆變器數字化控制的采樣調理電路,結合tms320f240的硬體資源,通過軟體實現了ups系統的緩起動和市電跟蹤,並改進了逆變器電壓瞬時值控制,通過引入輸出電流中心值檢測,對反饋電壓進行補償,解決了逆變器輸出的偏磁問題。From a modeling of an active magnetic bearing ( amb ), a numeric controller was designed with degrade observer and optimized feedback control. it was proved out with simulink in matlab
本文通過對主動磁懸浮軸承系統的建模,設計了帶降維觀測器的最優反饋數字控制器,並在模擬中驗證了控制器的正確性。We design inversion control circuit with cmos figure pll cd4046 act as core and microprocessor 80c196kc act as assistant controller. adopting a control method that combine fuzzy controller and pll control, improve induction heating power succeed in startup. adopting electric current voltage pair closed loop feedback design, with trough route capacitance voltage and trough route electric current act as pair closed loop feedback signal, guarantee induction heating power output accuracy
並對系統主電路的元器件參數進行了詳細的計算;設計了以cmos數字鎖相環cd4046為核心、以80c196kc作為輔助控制器的逆變控制電路;採用了模糊邏輯與鎖相環相結合的控制技術,提高了電源的啟動成功率;採用電流、電壓雙閉環反饋方案,採用槽路電容電壓和槽路電流作為反饋信號,從而保證了電源功率的輸出精度。With the fast development of computer technology and the specialization trend of 3d gis, it is necessary and realizable to building a visible, digital, informational and intelligentized system with the three - dimensional visualization foundation, only in which variable of data and information can be fed back to users in time, dynamic and straight
隨著計算機技術的快速發展以及三維地理信息系統的部門化的發展趨勢,構建一個可視化、數字化、信息化、智能化的水利領域三維可視化系統不僅是必要的而且是可行的,要實現這樣一個系統,三維可視化是基礎,只有在可視化的環境中才能將各種數據和信息及時、動態、直觀地反饋給用戶。According to this control model this text has already carried on the direct feedback control, conventional digitized pid control system analog simulation. determined the convention control mode controlled parameter and its the control effect. and uses the neural network inversion control method based on this, recognizing and controlling leveling system and has carried on the training and the computer simulation to it
依據其控制模型,文中進行了直接反饋控制、常規數字pid控制系統的模擬模擬,確定了常規控制方式的控制參數及其控制效果,並在此基礎上採用神經網路逆控制方法,對調平系統進行辨識和控制,並對其進行了訓練和計算機模擬。A system design of the circulation function therapeutic instrument of brain is presented in this paper. an integrated prototype is composed of at89c55 used as system controlling module and a / d, d / a converter and liquid crystal display device used as a terminal display module to realize the output of dynamic load and permanent flow through digital synthesis
本文提出了一種設計智能腦電治療儀的系統方案,以at89c55為核心控制模塊,輔以d / a 、 a / d成為全反饋閉環系統,使用液晶顯示器為終端顯示設備,實現數字合成動態負載恆流輸出。Through simulation and calculating the four models, the influence on proportion coefficient, integral time constant, derivative time constant and partial feedback coefficient for system performance is analyzed. the ideal reference value of every parameters and step respond curves are given. the simulation result may be used as reference for making analogue controller or digital controller
通過對這四種模型的模擬研究,分析了各模型中比例系數、積分時間常數,微分時間常數及局部反饋系數對系統性能的影響,並給出了各參數較為理想的參考值及階躍響應曲線,模擬結果對製作模擬控制器及數字控制器有一定的借鑒作用。Firstly, design the software phase - closed loops ; secondly, realize the double closed loops control of the instantaneous value and the virtual value. furthermore, the dynamic flux imbalance of the output transformer caused by ordinary pi arithmetic is analyzed in detail. a new solution for flux balance by sampling the instantaneous primary current of the output transformer and introducing the on - line calculated bias current component into the voltage regulation arithmetic is presented
系統軟體實現了ups的各個功能模塊,首先設計了軟體鎖相環;然後實現了輸出電壓瞬時值和有效值雙閉環反饋控制;並且在深入分析基本數字pi演算法所引起的輸出變壓器動態偏磁問題的基礎上,提出了一種改進演算法,實時消除了變壓器的偏磁。Using square error function and the barycenter algorithm of light intensity as the merit function of focusing and alignment respectively, the system analyzed the images captured by charge coupled device ( ccd ) in the projection screen to produce feedback signals
該系統運用數字圖像處理技術,以方差函數和光強重心演算法分別作為清晰度調節和三色和色調節的評價函數,分析電荷藕合器件( ccd )採集的局部圖像,產生反饋信號。Contrasting this, in feedback control the most majority of complex systems are controlled using sampled observations of system behavior taken at discrete time instants. thus the resulting controlled systems are hybrid systems, which are called sampled - data systems, involving both continuous - time and discrete - time signals. the investigation of sampled - data systems is motivated primarily due to the widespread use of digitally implemented controller in present - day feedback control of continuous - time systems
工程實踐中遇到的動態系統通常是連續時間系統,與此相反,大多數復雜系統的反饋控制卻是通過觀察采樣點上的系統行為來進行控制的,結果所得到的反饋控制系統是個混合系統,它含有連續信號和離散信號,這樣的系統稱之為采樣系統,當今連續受控系統中數字控制器的廣泛運用促進了對采樣系統的研究,已有的線性采樣系統理論顯然不能滿足處理非線性采樣系統的需要,因此近年來非線性采樣系統的分析與設計已經成為國際控制論界的持續的研究熱點之一。Taking the industrial computer as the kernel, the system structure was simplified by extending the multi - channel in one piece of cpld, the servo - control precision and working stability were improved effectively by the full digital sample of the signal for speed circuit and position circuit. and the advantages of the system are simple 、 low ? cost and stable
以工控機為核心,在位置反饋信號採集調理過程中對單片cpld進行多通道擴展以簡化系統結構,並通過對速度迴路和位置迴路的信號的全數字采樣,有效的提高了伺服控制精度及工作穩定性,使系統具有結構簡單、成本低廉、性能可靠等特點。We develop and produce the equipment of amplifiers. the main products are as follows : digital conference system, digital frequency shift amplifiers for teaching, long distance network conference system, simultaneous interpretation system and microphone for conference and special purpose. haisheng company has been dedicating to producing professional audio frequency equipment for conference and teaching
主要產品有:數字移頻擴聲設備dsp聲反饋抑制擴聲設備數字化會議系統同聲傳譯系統網會通網路會議用usb speaker phone回聲消除器界面話筒會議式鵝頸話筒高保真會議音柱專業麥克風等。The paper describes a cw, non - cooling, digital all - solid - stated ld pumped nd : yvo4 driver which adopts microprocessor control, stability power of laser feedback and laser output power about 10mw. the system is composed of constant current source, soft diagram, protection, pulse schematic and laser power feedback loop. by combining appropriate hardware and software, we achieved, in our driver, a variety of protection features including the ability to suppress transients and reduce noise, relay soft and hardware over - current protection and overvoltage shut - off, we have obtained a continuously adjustable laser power output with high accuracy and stability
介紹一種採用單片機控制的連續運轉無製冷、數字式光反饋穩功率全固態激光器驅動電源,其輸出激光功率在10mw左右,系統包括恆流源、保護電路、脈沖驅動控制、光反饋穩功率控制等部分,結合硬體及軟體實現了激光二極體的可靠保護以及光功率穩定、準確輸出及在穩光輸出情況下,實現激光器的內外調制,並取得了一些有價值的研究成果。Digital feedback system
數字反饋系統分享友人