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- Electricity control technique developed from the relay system to the direct digit control( DDC) system the disperse control system( DCS) to the fieldbus control system ( FCS). 电气控制从继电器控制系统发展到直接数字控制(DDC)系统、集散控制系统(DCS)到目前的现场总线控制系统(FCS)。
- unit direct digital control system 装置直接数字控制系统
- This paper introduces a DDC(Direct Digital Control) temperature system. 介绍一种 DDC(直接数字控制 )温度系统。
- This paper discusses the direct digital control (DDC) in the air-handing unit of air-conditioning system. 本文将讨论空调系统中空气处理机组的直接数字控制(DDC)设计。
- A new DDC (Direct Digital Control) system won't improve the operation of malfunctioning or inoperable devices! 一套新的DDC系统不可能改善系统的运行故障或损坏的设备。
- Applications of Object-Oriented Technology in Direct Digital Control Systems 面向对象技术在直接数字控制系统中的应用
- direct digital control system 直接数字控制系统
- By using microprocessor technology, this system realized direct digit control (DDC) of the constant strain test, the constant revolution test, and digital measurement of testing parameters. 该系统运用微处理机技术实现了恒应变试验、恒转速试验的直接数字控制(DDC)和试验数据的数字测量。 文章阐述了系统的控制方式和功能模块化的硬、软件结构及设计要点,并对系统的功能、特点作出结论。
- Direct digital controller(DDC) is the basic control unit of building automation system(BAS). 直接数字控制器(DDC)是楼宇自动化系统(BAS)的基本控制单元。
- The robot control system is designed based on direct digital frequency synthesizer (DDS), which is consisting of C8051F040 embedded processor, FPGA and high voltage amplifiers. 基于DDS波形发生原理，为机器人设计了由C8051F040高速单片处理器、FPGA和功率放大器所构成的机器人驱动控制系统。
- Simplifying is basis of analysis and design of linear digital control System. 摘要在线性离散控制系统分析与设计中，都需要对离散系统进行简化。
- This paper is mainly about the application of DDC(Direct Digital Control)process control in polymerizer forced condensation and the results. 本文主要论述了聚合釜冷凝强制投用的DDC过程控制应用。
- Finally, the digital control system based on TMS320LF2407 is dissertated. 最后，本文介绍了以TMS320LF2407为核心的数字控制系统。
- This paper further presents the principle and ways of direct digital control(DDC) used single-board-computer.Program block diagrams and interface circuits are given. 文中进一步介绍了采用单板机进行直接数字 控制（DDC）的原理、方法，并给出了程序框图和接口电路。
- In this thesis, direct digital control (DDC) system of the DC motor speed regulation is designed, with the use of MOSFET, a kind of silicon power field controlled devices. Obvious effect has been achieved when applied in testing site. 本课题应用先进的功率场控器件MOSFET为控制器件，根据加工工艺的要求，设计出直接数字控制型直流调速计算机控制系统，并应用于现场，取得明显的效果。
- direct digital control systems 直接数字控制系统
- This paper proposes a practical method on simplifying linear digital control system in the Z domain with pertect derivation in theory. 提出了一种在Z域中简化线性离散系统的实用简便的方法，并有完善的理论推导。
- Expatiate on application of DDC(Direct Digital Control)of BAS(Building Automation System)to measure and control the data of constant air volume system,and finally achieve energy saving. 阐述采用楼宇自动化系统的 DDC直接数字控制器监测和控制定风量空调系统的运行参数 ,达到节能目的
- Methods The system was a distributed digital control system consisting of a computer and zeitgeber generators. 方法生物节律测控及分析系统采用分布式控制方案，由测控计算机和授时因子发生仪组成。
- This paper introduces the main composition of direct digital control (DDC) system and presents some typical control examples of air conditioning system in hotel, indicates applying this system can improving running quality and saving energy. 通过介绍直接数字控制(DDC)系统的基本构成,并结合饭店空调系统特点,介绍某些典型的控制实例,指出饭店空调设备采用DDC系统进行控制管理,可有效改善系统的运行品质,节省运行能耗。
