bus circuit 中文意思是什麼
bus circuit
解釋
母線電路-
As a new interface caters for rapid development of computer peripheral equipment, universal serial bus ( for short usb ) dispels astriction of communication through traditional serial port and parallel port. it is very suitable for real time image data transmission, which requires high speed. this theme describes two - circuit systems, which utilize usb interface to data from a digital image sensor to pc
為了迎合計算機上設的快速發展以及消除計算機外設通過串、並口的通訊的局限性，出現了新的計算機外設介面usb （通用串列總線） ，這種新型介面對于實時的視頻傳輸很適用，本文設計了兩套電腦眼基於ez - usb2131q的usb介面系統。 -
Js6606d2 adopt independence pairs of return circuit vacuum, wide board and axle, improved the stability and dependability greatly of the completed bus. the appearance of the completed bus is slim and graceful, have the style of the modern europe
原來金聯合汽車工業有限公司是生產大客車的，俗稱「大金」金旅行車有限公司是生產旅行車的，俗稱「小金」 ，是「廈汽」的子公司。 -
The fourth chapter : in this chapter, it introduces the hardware designing of the dsp system based on pci bus and states every module of the hardware designing : circuit of signal adjusting, filter circuit of anti - overlap, circuit of data - acquisition automatically, expanding circuit of dsp memory, circuit of voltage matching, interfaces circuit of pci etc. it also includes theoretic basis and procedure of pcb designing
第四章介紹基於pci總線的dsp系統硬體設計。敘述了硬體設計的各個模塊：信號調理電路、抗混疊濾波電路、自動數據採集電路、 dsp存儲器擴展電路、電平匹配電路、 pci介面電路等，以及pcb設計的理論基礎和設計過程，並給出了設計和調試的結果。 -
The application of i2c bus in the led digital screen control circuit
數碼顯示屏控制電路中的應用 -
The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault ， researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system ， a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows ： this paper compared some existing methods in excitation control ， fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 ， indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which ， discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations ， made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations ， which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations ， there were several very important parameters of power system - - rotor angle ( ) ， rotor speed ( ) ， generator q axis voltage ( eq ) ， transient voltage ( e ' q ) ， active power ( pe ) ， mechanical input power ( pm ) ， valve opening ( ) ， generator terminal voltage ( vt ) ， based on the model ， nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault ， which achieved better postfault regulation compared with another two routine methods ， one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either
在介紹逆系統理論的基礎上，詳細介紹了dfl理論，通過比較闡明了dfl理論其本質是逆系統方法的一類，並結合具體課題推導出的模型方程將dfl理論進行了擴展，使之適應于電力系統這個強非線性對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程，此模型方程涵蓋了電力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ，在此基礎上建立了實用的電力系統簡化的數學模型，並將擴展的dfl理論應用於此模型系統，結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器，通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型性能指標設計的最優快控汽門（考慮發電機的飽和因素）進行了對比，證實了採用此種控制器可以有效地提高電力系統的暫態穩定性，並且在電力系統遭受小干擾時同樣具有良好的調節性能。 -
Integrated circuit design has entered into the era of system on chip ( soc ), the bus interconnect architecture of system on board have also developed into a kind of hierarchy architecture - on chip bus ( ocb )
隨著集成電路設計進入到系統晶元（ soc ）時代，板極系統的總線互連結構也發展成為系統晶元的層次化總線體系一片上總線。 -
Key problems in design of can bus interface circuit
總線介面電路設計中的關鍵問題 -
With an aim at this problem, this paper suggests the modulation scheme with dc bus voltage ripple by using the front - end active power factor correct circuit based on the analysis of necessary conditions of producing acoustic resonances
針對這一現象，在分析產生聲諧振的必要條件的基礎上，重點提出了利用前級有源功率因數校正電路的直流母線脈動電壓的調制方案。 -
The demodulation circuit interfaced with the local bus, demodulates the signals transmitted on the pstn and restores the acquired data. in order to work nomally, hardware needs cooperation with software. the driver for pci demodulator has been developed
本地總線上掛接解調電路，對傳輸來的信號進行解調，恢復採集的數據。硬體需有軟體的配合才能正常的工作，因此為pci解調器設計了驅動程序。 -
The whole part of the data acquisition is build in a computer as two data acquisition cards. they are front card and rear card. the front card composed of four modules. they are : coin circuit module, data flow controller module, sdram array module and system bus interface module. the rear card composed of four odules. they are : asynchronous serial port interface module, adc control odule, ecg signal process module and gate control data produce module
數據採集模式實現部分的大部分工作是在前面板上完成的，後面板主要是一些外圍電路。前面板採集卡上從物理上來說主要有四塊電路:符合電路，數據流控制器電路， sdram陣列和系統總線介面電路組成。後面板採集卡從總體物理上主要有四塊電路組成: 485串列通信電路， adc控制電路，心電數據處理電路和門控信號產生電路。 -
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。 -
Based on these characteristics we adopted a project which combines the wire and wireless technology when it is in research. the design of image processing card which is used to process the data of monitoring site with the technology of pci bus is completed. the design of the circuit of sending and receiving information which is the analogue measuring date of temperature and humidity of monitoring site with blue - tooth technology and the design of circuit of sending and receiving & processing alarm data which is generated when emergency happens in monitoring site with rf technology are completed
根據家庭安全系統應具備點位布控靈活、明線不宜太多以及架設與拆卸必須方便的要求與特點，本系統在研製時採用了有線與無線技術相結合的解決方案：利用pci總線技術完成了用於監控場所景況數據處理的圖像採集處理板的設計；利用藍牙技術完成了用於監控場所溫度、濕度等模擬量測量的信息發送電路和信息接收處理電路的設計；利用rf技術完成了用於監控場所緊急情況報警的告警發送電路和告警接收處理電路的設計。 -
At the same time, essential protective electro circuit is designed for safe. it chooses pc bus industry programmable computer and programmable controller as the host computer and designs two independent systems to control hoist or lower the stage and orchestra separately. for the sake of running safely, it applies ac motor with brake as the power device that adopt frequency conversion mode and inter lock and journey switch in electric circuit
設計中選擇了pc總線工業控制機和可編程序控制器作為控制系統的主機，設計了兩個獨立的系統分別控制升降舞臺和升降樂池，採用了制動電機作為舞臺升降的拖動裝置，電機的調速方法選擇了可以無級平滑調速、經濟節能的變頻調速方法，並在電氣上採用互鎖和行程開關來保證舞臺機械設備的安全運行。 -
Based on lon field - bus ' s technology characteristic, criterion of protocol and intelligent communication, this paper gives a reading meter module designed project based on automatic meter reading ( amr ) system, which depend on lonworks technology, and designed project of lon bus networking administrating and software of related watching and administrating. this paper ' s designing object is automatic reading meter system ' s reading meter collection device, and raise whole designed project of reading meter system, on the other hand, achieve hardware circuit design of collecting device, software design of communication and system design of watching and administrating
本文在研究lon總線的技術特點、協議規范、智能通信的基礎上，提出了基於lonworks技術的自動抄表系統的抄表模塊的設計方案、 lon總線網路管理和相應監控管理軟體的設計方案，以自動抄表系統的抄表模塊為設計對象，提出了抄表系統的整體設計方案，主要實現其中抄表模塊硬體電路設計和通信軟體設計功能及監控系統設計，同時部分實現lon網路管理功能。 -
A new full - wave measurement circuit structure is put forward that would increase distribution automation system reliability and veracity. the distributed protection and monitoring unit in this paper can instead of general instruments of low voltage distribution system. it not only combines ampere meter, voltage meter, active power meter, reactive power meter and power meter, frequency meter into a meter, but also increases monitoring position switch, control bus switching alternately and monitoring energy
本文研製的保護和測控單元，可替代低壓配電系統中所使用的常規儀表，將原來迴路需要的電流表、電壓表、有功功率表、無功功率表和功率因數表、頻率表簡化為一塊表，並增加了位置開關量檢測，控制母線投切和電度監測功能，從而極大的簡化了低壓配電二次儀表設計、安裝調試，提高了運行、維護和管理水平。 -
Concretely, on the basis of describing the communication specification of arinc 429 with enhanced parallel port ( epp ), the standard and the module application of dsp and cpld, the thesis has proposed the design of the arinc 429 technology based on dsp system. at first, the function and the application of each module of the system and the operation principle of high - performance cmos bus interface circuit hs - 3282 chip which forms the main body of the data diversion of the interface module are introduced. secondly, the hardware structure of the interface module is described in detail, mainly including data latch and buffer circuit, choice circuit of transmission rate, etc. and then the design philosophy and flow charts of the software are fully discussed, such as the basic requirement of software, the design and realization of the function
本文在簡單的論述了pc並口協議（ epp ）與dsp之間的通信方法、 cpld模塊邏輯控制應用和arinc429的通訊規范的基礎上，給出了基於dsp的arinc429通訊介面的設計方案:對通訊板中各模塊的功能和應用以及構成數據轉換主體的總線介面晶元hs - 3282的工作原理做了說明;介紹了本設計所用的dsp和cpld的功能概況;詳細敘述了通訊板介面模塊的硬體結構設計，其中，對數據緩沖電路、數據傳輸速率選擇電路、邏輯控制電路等各關鍵點做了重點介紹;具體闡述了軟體設計思想及流程圖，包括軟體的基本要求和功能的設計與實現;接著從埠譯碼單元、 i / o通道、電平轉換電路等方面進行了介面模塊的軟、硬體調試;最後，給出了測試結果，對研製工作做了總結，對本設計的優缺點各做了評述。 -
This thesis gives the design of an airborne datum communication board based on arinc429 bus, which is adopted dsp as controller, utilized bus interface chip hs - 3282 and use self - designed 429 electronic conversion circuit, then form a simple structure datum communication board with high dependability
該通訊板實現了pc並口（ epp ）與arinc429協議間的通訊，採用dsp控制，利用arinc429總線介面晶元hs - 3282和自行設計的電平轉換電路，構成了一款結構簡單、可靠性高的數據通訊板。 -
In data sampling circuit, high - speed, complex programmable logic device cpld technique is used. high - speed double - port ram, control sampling time sequence logic, cpu interfaces and bus circuit are implemented in cpld. sampling speed is up to 80mhz, sampling depth is ik - byte, and cpld can fulfill the requirement of the software arithmetic to sampling
在數據採集電路中採用了高速復雜可編程邏輯器件cpld技術，晶元內設計有高速雙埠ram 、控制采樣時序邏輯及cpu介面、總線等電路，采樣速率高達80mhz ，采樣深度1k位元組，很好地解決了超聲波微位移傳感器軟體演算法對采樣的要求，並可實現在線升級，大大提高了系統的整體性能。 -
3 can check address bus or data bus circuit open short or not
3可知address bus或data bus信號本身有無開短路情形 -
5. execute single step function, use digits display pci bus ad0 - ad31 in hexadecimal, it can judge the pci ad - bus circuit open short or not, or whether shortage with other
5 . ad0 - ad31採用數字型顯示器做十六進位碼顯示，如此可以很容易的判斷pci bus
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