programmable logic 中文意思是什麼

The circuits driving the ccd and processing the video signal are implemented by means of cpld ( complex programmable logic device ) and hdl ( hardvvare description language ). the solution to solve the problem of multi - level logical competitive risks that occur in cpld circuits frequently was provided in details in the thesis

Ccd的驅動電路和視頻信號處理電路採用cpld （可編程邏輯器件）和hdl （硬體描述語言）實現，文章對cpld電路中容易出現的多級邏輯冒險競爭情況作了專門的敘述和提出相應的解決方法。

Cooperating the reform in experiment teaching, and associating with the present situation of electrotechnics teaching and experiments in physics major in teachers colleges, and the importance of introducing programmable logic control ( plc ) is used in electrotechnics, and methods are discussed

摘要配合實驗教學改革，結合師范院校物理專業電工學教學、實驗現狀，論述了引進plc的必要性和引進方法。

The core of the control system of soft water treatment is a programmable logic controller ( plc )

軟水處理控制系統的核心是可編程序控制器（ plc ） 。

This thesis presents pc - base model motor automated testing system whose control part is consisted of pc and programmable logic device ( plc ) : pc controls the test process, intelligence measure instrument ; the plc executes the commands sent from pc. common three - coil motor, frequency motor, synchronal perpetuation magnetism motor can be tested by this system

本文介紹的電機測試系統是pc - base類型電機型式自動測試系統，它的邏輯控制部分由上位機（ pc機）和可編程邏輯控制器（ plc ）構成： pc機主要實現對整個試驗過程的控制、智能儀器控制和邏輯運算， plc主要執行pc機命令，實現對系統的繼電控制。

In this paper, based on the study of vga graphic displaying theory and the theory of synchronizing display between led large - screen display system and crt image, a method, bit plane addressing method which has good effect -. high ratio of performance to price and can be implemented easily in circuits is discussed. and the principle and the implementation of the multi - gray led display system with programmable logic devices cpld and fpga are analyzed in detail

本文在分析vga圖象顯示原理和led大屏幕與crt視頻圖像同步顯示原理的基礎上，論述了一種顯示效果較好、性能價格比高、電路上易於實現的方法? ?位平面尋址法實現多灰度圖象，並詳細分析了應用復雜可編程邏輯器件cpld和在線可編程邏輯器件fpga實現多灰度彩色led大屏幕圖像顯示的原理及電路實現。

The user can adjust the system according to the touchscreen display. 2. mechatronics - based control was realized by combining programmable logic controler ( plc ) and human - machine interface technology, which can control the cn2006 bioartificial liver supporting device and has advantages such as being reliable, stable, safe, and easy to develop and expand

2 .應用可編程式控制制器（ plc ）與人機界面的技術組合，實現機電一體化控制，能滿足cn2006型生物人工肝支持裝置控制系統要求，具有成熟可靠、穩定性好、安全性高、開發容易、擴展性好等諸多優點。

The programmable logic controller ( plc ) is dealt with in terms of application of engineering and the practice in the sampling control system of coal conveyer

摘要從工程應用的角度，簡述了可編程序控制器（ plc ）在實際的輸煤采樣控制系統中的具體應用。

Abstract : it is an efficient method that realizing the contro l circuit of a power source system with fplds ( field programmable logic devices )

文摘:使用現場可編程邏輯器件實現各種電源控制電路是一種非常有效的設計方法。

The electric control section with the programmable logic control adopted well - known imported meters and control components

電器控制採用進口名牌儀表及控制元件，實現自動控制。

Further investigated and analyzed composition structure and flow data that dsa ' s formation of image is systematic at first in this paper, carried on intact summing up to the data in the system, having given out the plan of design of high speed and large capacity data channel of digital formation of image system of x - ray ; deeper discussion of control way on sdram, give solution that many pieces of sdram works togetherses of realizing heavy capacity, designing of heavy capacity deposit board realize storing at a high speed to vision data by frame on the basis of this ; through further investigations of interface of pci bus, optimize back end state machine design and urge procedure making with lower, giving intact pci interface scheme that realize high speed dma data transmission and satisfy request of video transmitting ; further investigate the figure systematic design method of programmable logic devices, due to the difficult point of drifting about of enabled signal in fifo in common use and setting up and keeping of output signal, method has been proposed of improving stability of system making use of signal utilizing the phase locking ring in fpga to offer a lot of clocks to move thus realize coordinating the data between every module of system to transmit at a high speed by making use of fifo

本文首先對數字減影血管造影（ dsa ）成像系統的組成結構和數據流向進行了深入研究和分析，並對系統中的數據流向進行了完整的歸納和總結，給出了x線數字成像系統中的高速大容量數據通道的設計方案；在對sdram的控制方式做了深入探討后，給出了實現大容量多條sdram共同工作的解決方案，在此基礎上設計了大容量幀存板實現對圖象數據進行高速存儲；通過對pci總線介面的深入研究，優化後端狀態機設計和低層驅動程序開發，給出了完整的pci介面方案實現高速dma數據傳輸，完全可以滿足視頻傳輸要求；深入研究了基於大規模可編程器件的數字系統設計方法，針對通用fifo使能信號漂移、輸出數據難于建立和保持等設計難點，提出了利用fpga中的鎖相環提供多個時鐘相移的信號來提高系統穩定性的解決方案，從而實現利用fifo來協調系統各模塊之間的數據高速傳輸。

A distributing hardware control system of the stretch - bending machine is designed by combining the advanced industry control computer and plc ( programmable logic controller )

採用先進的工業控制計算機與plc相結合的方式設計了分散式拉彎機硬體控制系統。

Implementation of programmable logic device in timing control circuit

定時控制電器的可編程邏輯器件的實現

Realization of digital clock control system by complex programmable logic device

實現的數字鐘控系統

Complex programmable logic device ( cpld ), usually used to develop asic, is widely used in digital system to accomplish complex combinational and sequential logic

復雜的可編程邏輯器件（ cpld ）廣泛地用於數字系統中，常用作設計自己的專用集成電路，可實現復雜的組合邏輯和時序邏輯。

According to the requirements of static compensator ( statcom ) to triggering pulse generator, an autonomous triggering system for statcom was developed based on complex programmable logic device ( cpld )

針對靜止無功補償器（ statcom ）對觸發脈沖發生電路的要求，利用復雜可編程邏輯器件（ cpld ）開發了一種自治型statcom觸發系統。

Abstract : this paper introduces the unavoidable disadvantages of the the marine cargo crane ' s relay - contactor control system and the utilizing of the programmable logic controller （ plc ） and frequency conversion control technology for the marine cargo crane, and describes the main features of the marine cargo crane ' s frequency conversion control system with programmable logic controller such as energy economization and reliable protection

文摘:介紹了傳統的船用起貨機繼電器?接觸器控制系統及其存在的問題和可編程式控制器及交流變頻控制技術在船用起貨機上的應用，描述船用起貨機plc變頻控制系統的主要特性，如節能和可靠性保護。

Harmonized system of quality assessment for electronic components programmable logic arrays. blank detail specification

電子元件統一質量評審體系.可編程序邏輯網路范圍.空白詳細規范

Programmable logic design on pci9054 local bus control

9054本地總線控制可編程邏輯設計

Programmable logic types

可程序規劃邏輯型式

Abstract : this article retrospects the development of sequence control system in thermal power plants at home and abroad ， especially introduces the three developmental stages of sequence control system in china over the past 35 years ， i. e. ： 1. starting stage ； 2. the second stage with programmable logic controller ( plc ) as core hardwares ； and 3. the third stage with sequence control systems of main and auxiliary equipment incorporated into the distributed control system ( dcs ) and with field bus control system ( fcs ) got involved. this article also appraises the features of sequence control system composed of different configurations and looks forward to the developmental tendency of this system for the next century

文摘:回顧國內、外火電廠順序控制系統的發展，特別介紹35a來我國順序控制系統經歷的起步階段、以程序控制器（ plc ）為核心硬體的中期階段和主、輔機順序控制系統融入分散控制系統（ dcs ）階段、現場總線控制系統（ fcs ）介入階段，並對由不同形式組成的順序控制系統的特點進行評價，展望下一世紀該系統的發展趨勢。