Solutions for Efficient Networked Surveillance

Three factors in particular are decisive for networked video surveillance: compression of video signals, the cabling requirement and the number of cameras used.


H.264 compression
The most efficient compression method at the moment is H.264. It gives a high picture quality with low occupied bandwidth. This means the costs for storage and bandwidth usage are reduced by at least 20% for a volume of video data compressed with H.264 compression as compared to usual compression methods.


Power-over-Ethernet



Power over Ethernet delivers power to cameras over the same cable that is also used for the network connection. Sockets are therefore no longer needed at camera locations and the cabling requirement is halved. Additionally, an uninterrupted power supply assures continuous operation.


RoI (Region of Interest) function



A camera with the RoI function can replace two cameras that would otherwise have to be used for monitoring an area with the same size. RoI allows particularly important areas to be designated. The corresponding signals are then transmitted at a high frame rate, resolution, bit rate and picture quality in the primary stream. Therefore, for instance, a camera can capture and transmit the complete point of sale in a supermarket. Simultaneously though, the cash register itself can be defined as a region of interest so that the transactions made there are displayed from the same camera but on a different monitor.

Products for Efficient Networked Surveillance (Selection)

NXC Series		NXD Series