General principles of designing the digital video surveillance system with distributed architecture

The digital video surveillance system generally contains:

1. Servers – hardware and program platforms used to receive and process video and audio signals from analog and IP surveillance cameras.
2. Remote Admin Workstations – hardware and program platforms used for remote administering of the video surveillance system and as the specialized platforms for: video gateway, remote archive server, remote web server etc.
3. Remote Client – hardware and program platforms used as Operator’s workstations to realize remote video surveillance and audio monitoring:

Servers, Remote Admin Workstations and Remote Clients are integrated into the video surveillance system, fitting the system set of functions, safety requirements, specific features of the guarded location etc. The video surveillance system may include several subnets, that interact via selected (node) servers and Remote Admin Workstations. The distributed architecture of the video surveillance system provides synchro data exchange (events, commands, setting parameters, etc) among its components.

Servers, RAWs and ROWs communicate with each other in LAN, WAN, VPN, Wireless networks using TCP protocol.