How CableFree is assiting worldwide security and traffic management with city-wide wireless CCTV networks

18 Jan 2008

CableFree is deploying major wireless transmission networks for CCTV security applications. Major government, police and corporate customers are turning to Wireless transmission which offers far more flexible, rapid-deployment, low cost and low-distruption deployment compared to traditional leased line, fibre-optic or copper cabled solutions.

Closed Circuit Television is an increasingly powerful tool in many security applications – whether deterring town-centre crime, monitoring remote premises, motor traffic violation policing, providing evidence for criminal prosecution, counter-terrorism or for covert surveillance smuggling operations, CCTV increases coverage, provides evidence and cuts manpower costs.

In City Centres and large campus sites, remote monitoring and perimeter defences, cabling can become a real problem – typical methods of getting pictures from a remote camera to observation point involve trench-digging, laying fibre-optic or copper cables, or expensive leased-line connections – all of which have associated limitations and costs.

CableFree solves the problem with high-capacity, highly reliable wireless solutions with low cost of ownership. CableFree products offer up to hundreds of cameras with Gigabit capacity links which are installed in hours, not weeks. Modern IP networks are now the standard for CCTV deployments. Legacy or even modern analogue CCTV cameras are equipped with efficient MPEG2/4 or JPEG2000 codecs to transform pictures into IP packets. At central monitoring stations, digital video recorders, and large digital displays are used to display and record images for later reference or processing.

CableFree offers a complete range of wireless transmission solutions, including Point-to-Multipoint radio, Point-to-Point Radio, Microwave, Free Space Optics and Millimeter Wave backhaul, and WiFi or WiMax for non-line-of-sight and indoor/in-building connectivity. Systems integrators now enjoy the benefits of an experienced wireless company who assists in design, architecture, supply and implementation of complete wireless networks with services such as training and optimisation support across all platforms.

Typical real-world wireless CCTV networks may be deployed like this:

In this deployment, CableFree OFDM radios are used for high quality point-to-multipoint connection of multiple remote cameras to centralised base stations. Using CableFree's all-outdoor Base Station and Subscriber units, radios can be co-located with CCTV cameras on existing locations such as street-lighting poles, rooftop poles and traffic light gantries. CableFree radios are ruggedised, low profile and low-visual impact and ideally suited to urban as well as rural deployment. They can often be run from existing lighting and building power supplies, and even solar, wind or battery sources.

From the base sites, FSO or Millimeter-wave links are used for short (1-5km) links across to central sites, or to aggregate multiple base station feeds, with 100Mbps or Gigabit throughput
For long distances between cities, or rural locations, licensed microwave can offer up to 60km transmission, still with high speeds up to 622Mbps
With each camera feed between 2-5Mbps compressed, these backbones can carry hundreds of cameras worth of traffic, and allow upgrade to future multi-megapixel high-definition cameras.
Network architecture can include resilient or Mesh design to ensure that any single point-of-failure, or even hostile attack of the network does not cause downtime or loss of real-time vision of images from the cameras.
CableFree's existing wireless CCTV deployments include Motor Vehicle Traffic Violation management, Automatic Number Plate Recognition, Face Recognition, Crime Prevention and Deterrence and Counter-Terrorism, with leading governmental and police customers in Europe, Middle East and Asia.

For more information on CableFree's CCTV solutions please Contact us

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