Digital video surveillance | Digital Security System


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Advantages of using digital video surveillance systems in London

For the City of London , Security system future is in digital video surveillance systems. Besides fighting terrorism, digital surveillance systems installed in public places, buses, or retail centres can deter crime, help citizens feel safer, provide the police with leads and improve the economy of a crime-stricken area. These IP-based digital security systems in London not only capture precise images, they do so in a way that is scalable within a company’s current IP network with pan-tilt-zoom (PTZ) video cameras that are fast and sophisticated.

These digital video surveillance systems in London can cost upwards of a million pounds since they include the digital surveillance cameras and the requisite connection to the IP based network. Although the cost of these security surveillance systems is much greater than traditional CCTV surveillance systems, the advantages of using digital surveillance systems far outweigh their initial start-up costs and most company’s CCTV analogue systems have now gone digital for improved performance, video surveillance camera manoeuvrability, and quick user feedback.

A digital security surveillance system consists of hardware and software components that collect and transmit the surveillance camera information via wireless technologies, fibre optic cable or over any IP-based network. Both power and data can be carried on the same wire by using PoE (power over Ethernet). Some digital video cameras in a digital system may also have their own IP address for full access to the Internet. These surveillance images or videos are then transferred to a PC or laptop in a centralized control room to be viewed by an observer using a compact, flat-screen monitor that offers multi-screen displays or for digital storage on digital data storage medium. An IP-based digital surveillance system in London is unlike the traditional closed CCTV system, whose images and videos must be monitored using multiple monitors, sites and personnel.

The digital system in London can store video surveillance data onto DVRs (digital video recorders), some of which can store data up to 12 weeks — far more than analogue CCTV systems. After the DVR has backed up the images or videos, they can be exported to discs using the CD-R or DVD-R drive. They can then be sent to remote PCs, laptops, or palm pilot devices within moments via the network. Digital video recording is done 24/7, without the need for cumbersome CCTV surveillance video tapes that have limited storage capacities.

When a company or business in London chooses to invest in digital video surveillance systems, they need to invest the time in finding out how large an area needs to be viewed, as well as the area’s situational parameters. A digital video surveillance system in London requires a large capital investment up front, but it is guaranteed to produce a positive ROI if the digital video cameras are properly placed and if the videos are consistently monitored.

One of the reasons for the increased cost of the digital surveillance systems over CCTV lies in the hi-tech video cameras, which greatly surpass the analogue CCTV cameras. These cameras available in London have features ranging from fixed models to direction-controlled or dome models with automatic pan, tilt and zooming functions that can create sharp images and videos in the 1600 x 1200 pixel resolution range. With the extra zooming and panning capabilities, one digital security camera in London can do the work of five, which is more efficient in the long run.

And at the highest end, there are digital video cameras with infra red capabilities to pick up motion and changes in light regardless of poor lighting conditions. Some of these high-end cameras even have 3-D imaging to better identify suspects. Companies investing in the digital security system in London should also consider purchasing surveillance camera accessories such as weather-proofing and added material that’s resistant to hazardous substances and tempering.