VisionIP FAQS
What is the difference to a ‘normal’ CCTV system?
This system is basically a modern type of CCTV with none of the disadvantages and many advantages over video-based, conventional systems. It is a PC-based software solution that uses networked digital cameras.
When is CCTV not CCTV and when is it EDDS?
CCTV stands for ‘Closed Circuit Television’. The transmission of television signals along wires (rather than through the air) has been around for a long time and its disadvantages are well known. This system achieves a far better end result and at a reduced cost, through the use of modern digital techniques. Since pictures are only taken when the system is activated, then Event Driven Digital Surveillance is a better description of this system.
There are lots of digital systems around, why use this one?
Digital Video Systems use digital video recorders and require a large network bandwidth. Technology is changing fast and these can become obsolete. This system uses PC’s and normal network cabling so there is less risk to the customer.
Video systems need high bandwidth Networks don’t they?
Yes – normal digital video systems do require a high bandwidth network. And it is for this reason that Network Managers often won’t entertain Digital Video systems. This system doesn’t use Video signals. It takes 2 pictures (JPEGs) a second and only when the system is triggered. Therefore network bandwidth becomes a non-issue immediately.
2 Pictures per second? Is that enough?
If you watch normal digital video you will often see the picture jumping. This is because the network has to serve a number of activities rather than giving time to the camera system! This system acknowledges network performance in this respect and manages this jumping at 2 frames per second. At this rate no movement is missed, but the overhead on the network is small.
