Each camera was connected to an IndigoVision 8000 transmitter/receiver module, which encoded the analogue signal into MPEG-4 digital video, and was then transmitted to several security command centres via the IP network. Site-wide video recording was achieved using IndigoVision's Windows based Networked Video Recorders (NVRs). Recording and playing back high-quality 25 fps video, the NVRs were installed independent of camera positions in various locations around the network providing a high level of redundancy, a recording solution that cannot be achieved using traditional DVR technology.
The ‘Control Center' software and the network combined together to create a ‘virtual matrix' that ensured the correct camera feeds were available at the appropriate command centres. ‘Control Center' also provided all the management and analysis of recorded video from the NVR. Video analytics were used to automate the low-level scene monitoring functions, freeing the operators to monitor higher risk areas.
By implementing a CCTV system based on IP Video technology, the organisers were ensured a high-degree of flexibility. Existing cameras could easily be moved and new cameras added if needed, all that was required was a connection to any point on the network. This type of wide area CCTV surveillance is just not possible using traditional analogue equipment ; IP Video was the only practical solution.
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