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August 12, 2015 by Personal Sec Leave a Comment

Simplifying Multi Cam CCTV Playback

video surveillance camera on a wall

Simplifying the playback of complex video feeds from a multitude of cameras has always been a problem. I’m talking about street level CCTV security or large corporation security whereby you would have a control room with an army of monitors streaming live footage from a multitude of locations. Usually due to analogue technology you’d run into these problems.

 

Inefficient Analogue Technology

Simplifying the display of multiple cameras from multiple sources has always been a challenge. Early analogue system used multiplexers and matrix switches coupled with many monitors. This created great complexity and cost. Control rooms were very large areas that required many operators. Energy to operate these control rooms was very high. Today, modern technology has enabled the simplification of the control room and the display of video sources along with other vital information. – courtesy of Source Security

 

So what’s the solution?

Splicing video walls normally use LCD screens (LED backlight) with a very slim physical bezel, which is quite important when displaying an image across several monitors. The most common bezel in the market is around 5.5 millimetres. Dahua is proud to offer industry leading bezel sizes from 3.5mm. Dahua video wall monitors are available in 46” and 55” panel sizes. The displays have brightness levels from 500 nits to 700 nits to ensure a good view in all ambient light settings. All of the display panels are designed for 24/7 operation.

The surveillance industry requirement for video splicing walls far exceeds the requirements of digital signage applications. The surveillance application requires many types of inputs from devices including: IPCs, DVRs, NVRs; local HDMI/DVI/VGA video signals; and the number of the channels are often above 200. The ability to view many inputs with a single output or arrange inputs and outputs to meet the specific requirement can be challenging. Read more here.

CCTV Monitor For Security Surveillance To Prevent Crimes

Sounds like a plan. Now that 4k has arrived monitors need to be upgraded to cope and display all the footage that security personnel need to keep an eye on. When they are doing it live for the security forces or police, it will make spotting potential offenders much easier and it will also be useful for convictions, as the resolution will be a lot higher.

These upgrades might take a while before they drop down in price for the average consumer to be able to instal them. 4K monitors are not really a necessity for the home market just yet, unless you like everything to be high end and can afford to pay for it. A lot of people use the smaller screens of their smart phones for monitoring only when they get a motion alert, or after a crime has happened. Not many homeowners need a dedicated control room yet,unless they also have to hire a close protection operative due to the nature of their work, title or accrued fame. That means not a very large lot of us.

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