This document describes how to set up the NVR and cameras to work in the ideal state when the number of cameras connected to NVR approaches or reaches the maximum number of channels and other recommendations when operating NVRs. If the build date of the current firmware version is earlier than If the build date of the current firmware version is or laterupgrade the following firmware directly. The new preview interface is called to quickly restore the previous video live view, not one by one to get the stream, and at the same time the interface is called to do some locking processing to avoid resource conflicts.
The main features of HDCS are listed as below.