Introduction
Omega Cubed is able to provide a complete Installation Service for both new network video solutions and for upgrading existing conventional analogue CCTV systems to the benefits of IP-Surveillance.
Existing IP Network
Axis network video applications may be added to an existing IP network infrastructure at minimum cost. The same network infrastructure currently used for document and data processing may be used for image and video transmission. Existing severs or workstations may be used for image storage and remote viewing of images.
Upgrade an Existing CCTV System
In traditional CCTV surveillance systems, cameras are connected to a monitor using dedicated coaxial cabling. If an analogue multiplexer is employed it is possible to display several cameras on a single monitor.
It is relatively simple to add one or two extra monitors within a building. Viewing images from additional outside locations becomes progressively more complex as additional dedicated coaxial cable is required to add a new monitor or camera to an existing installation.
Video servers or digital video recorders can be used to digitise analogue video sources and distribute digital images over an IP network, essentially turning a traditional analogue CCTV system into an IP network system. Professional network video application software is then installed onto a computer connected to the network in order to retrieve, manage and replay digital images from all cameras on the system. Digital images may be saved to a dedicated server or any hard disk on the network.
The flexibility and scalability of network video solutions enables piecemeal upgrades to be made to transform a conventional analogue CCTV system to an IP-Surveillance system.
Large Installations
Installing a small number of network camera on to an existing Fast Ethernet (100Mbit) office network requires little specialist expertise. In any large deployment of network cameras and video servers to develop a professional IP-Surveillance system serious consideration must be given to the issues of network bandwidth and security.
Bandwidth
Bandwidth utilisation for an office based Fast Ethernet network would typically be 60% to 80%. A single network camera, transmitting the highest resolution image at maximum frame rate can potentially consume 5Mbit. This implies that running an IP-Surveillance system on an office network, simultaneously with other data applications, is not viable. Potential bandwidth problems can normally be ameliorated by employing the following techniques:
|
