DVR, called digital video recorder (hard disk recorder), that is, compared to traditional analog video recorders, using hard disk video, so often known as hard disk recorders, also known as DVR. It is a set of image computing storage processing computer system, with the image/voice and dynamic frames, such as video, recording, remote monitoring and control functions, DVR assembled video recorder, screen separator, PTZ lens control, alarm control, network transmission, such as five functions in one, Using a device can replace the analog monitoring system a large pile of equipment functions, but also gradually occupy the price of advantage and popularity.
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