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direct-digital control system

См. также в других словарях:

  • Direct digital control — (DDC) is the automated control of a condition or process by a digital device (computer).[1][2] A very early example of a DDC system meeting the above requirements was completed by the Australian business Midac in 1981 1982 using R Tec Australian… …   Wikipedia

  • Direct Digital Control — (DDC) refers to the ability to control HVAC (Heating, Ventilating, and Air Conditioning) devices via microprocessors containing a software performing the control logic. DDC receive analog and digital inputs from the sensors and devices installed… …   Wikipedia

  • Direct Digital Control — DDC GA Komponente Draufsicht Eine Komponente der Direct Digital Control Gebäudeautomation, kurz DDC GA, ist eine einem Computer ähnliche elektronische Baugruppe, die für Steuerungs und Regelungsaufgaben in der Gebäudeautomatisierung eingesetzt… …   Deutsch Wikipedia

  • direct digital control — (DDC) Use of digital computer to perform required automatic control operations in a total energy management system …   Dictionary of automotive terms

  • control system — Means by which a set of variable quantities is held constant or caused to vary in a prescribed way. Control systems are intimately related to the concept of automation but have an ancient history. Roman engineers maintained water levels in… …   Universalium

  • Distributed control system — Part of a series of articles on Industry Manufacturing methods Batch production • Job production Continuous production Improvement method …   Wikipedia

  • Direct torque control — (DTC) is one method used in variable frequency drives to control the torque (and thus finally the speed) of three phase AC electric motors. This involves calculating an estimate of the motor s magnetic flux and torque based on the measured… …   Wikipedia

  • Direct digital synthesis — (DDS) is an electronic method for digitally creating arbitrary waveforms and frequencies from a single, fixed source frequency. OverviewA basic DDS circuit consists of an electronic controller, a random access memory, a frequency reference… …   Wikipedia

  • Digital Command System — (DCS) is an electronic control system for O scale 3 rail and now HO scale model trains and toy trains, developed by MTH Electric Trains as a rival to Lionel s Trainmaster Command Control [Lionel is currently working on the second generation of… …   Wikipedia

  • Direct digital synthesizer — A DDS function generator. Direct Digital Synthesizer (DDS) is a type of frequency synthesizer used for creating arbitrary waveforms from a single, fixed frequency reference clock. Applications of DDS include: signal generation, local oscillators… …   Wikipedia

  • Control system — For other uses, see Control system (disambiguation). A control system is a device, or set of devices to manage, command, direct or regulate the behavior of other devices or system. There are two common classes of control systems, with many… …   Wikipedia

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