network video management system
How does a video management system work? What is the difference between NVR and VMS?

Network video recorder (NVR) is a specialized computer system that includes a software program that records video in a digital format to a disk drive, USB flash drive, SD memory card or other mass storage device.

VMS is video management software. It is a key part of the IP camera system. VMS is software that runs on your Windows computer. It provides a similar function as  
Camera integration — The latest version of ONVIF, Profile S, ensures greater compatibility between IP cameras and VM systems. However, high