A MULTIPLE DUPLEXED NETWORK VIDEO RECORDER AND THE RECORDING METHOD THEREOF

摘要

The present invention relates to a multiple-duplex network video recorder and a recording method thereof and, more specifically, to a composition for a multiple-duplex network video recorder (MD-NVR) and a recording method by the composition. Even though multiple MD-NVRs are mutually connected in various forms including a cascading, a circular shape, a star shape, a mesh shape, or a set thereof and recording is stopped by a malfunction or error of two or more MD-NVRs of the multiple MD-NVRs at the same time, another multiple-duplex network video recorder takes over recording work which needs to be performed by the two or more stopped MD-NVRs, and performs recording, and returns the recording work to the MD-NVRs that were stopped before if the corresponding MD-NVRs are recovered.