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CCTV Surveillance Digital Recording
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Advances in Digital Recording technology over recent years have been of immense benefit to users of CCTV.
A DVR (Digital Video Recorder) is a recording device which stores all the images onto internal Hard Drives and presents views of all cameras on a display. All recorded footage can be viewed simultaneously across all the cameras on the system. A user can go back to any time in the recording and playback a recording in a matter of seconds. The recorded images can be stored to hard drives or CDs and archived for as long as necessary.
A few of the Digital Video Recorders we use;
Avalon S & Avalon T
SDR
Linearis LE
Linearis RM
Linearis Net
Spectiva RT & RTL
Spectiva Net
360 Hybrid DVR
Avalon Open Vision IP
Avalon Vision Scan
Grandeye Halocorder
Dallmeier DMS 80
Dallmeier DMS 160
Dallmeier DMS 240
Dallmeier DMS 240 HS
Dallmeier DMS 240 IPS
Adpro Fast Trace
DM Sprite D4
DM Sprite DV IP
The DVRs can be controlled, and live and recorded footage can be viewed over the Internet using an Internet Browser or Client software. This allows you to view your premises from anywhere in the world, additionally, PTZ cameras can also be controlled remotely over the internet.
Although digital surveillance technology has revolutionised the CCTV security industry, “caveat emptor”, let the buyer beware. All Digital Video Recorders (DVR) are not alike. Digital video surveillance technology could use either stand alone units or PC-based software which operates in conjunction with DVR cards (video cards which plug into computer terminals).
PC-based systems, while less expensive than a quality stand alone DVR, are easily compromised by hackers, are prone to viruses, and are often rendered useless after operating software upgrades.
Digital video recording security systems provide a wide array of features and benefits.
The Benefits of Digital Recording - depending on the DVR specification
User friendly - simple to use.
No more video tape management problems.
Constant recording.
Improved image quality.
You determine how individual cameras are recorded by choosing the "images per second".
"Event recording". Enable built-in motion detection features and alarm activation options.
Fast image search and retrieval.
For instant playback select either "time and date" or search the event log.
"Live" images are still recorded when viewing playback.
Networking
With "networking" features available Digital Recording allows you far greater flexibilty of viewing and control of your sites.
Images can be networked onto different PCs around your site.
Images can also be viewed remotely "off-site", on your PC at home or a Lap-top.
Dial up your site by modem and telephone line or via the internet.
Police guidelines on Digital CCTV
Linearis LC - DVR
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