Archive for May, 2011

CCTV – It’s Not Just About The Technology

Wednesday, May 25th, 2011

If you are considering a modern CCTV system, it is really important to ensure that you really maximise the benefits that it offers.

First and foremost consider the camera – this after all is the key component.  Consider not only the camera technology, but also where it is to be situated. Can it provide the coverage that you really need?  This becomes even more critical for systems that are detector activated – where the camera and the detector fields of view need to be carefully aligned.  Consider the case where an alert is triggered but a misaligned camera is not able to send an accurate view to the Remote Video Response Centre. This might seem to be stating the obvious but experience has shown that in many cases poorly sited cameras have resulted in some crimes going undetected and evidence not being collected.

Illumination is a further key factor for CCTV systems is, particularly when natural light is not available.  The use of artificial ‘white light’ or infrared is vital, but it needs to be there to enhance the CCTV and not detract from it. Poorly positioned or inadequate illumination will result in reduced quality images.

Given the technology now available, the multitude of standards and best practice guidance which refer explicitly to CCTV cameras – BS8418 being a case in point – and the options for illuminating the immediate area, there can really be no excuse today for poorly defined and implemented CCTV.

Care and consideration needs to be given to the overall field of view.  Not just to ensure all the required areas are protected, but to ensure that coverage does not stray into public or sensitive areas. As an example consider retail environments with chip and pin readers. It is important to protect customer’s security at the point of sale – while still protecting key areas such as tills.

Finally you have your system up and running with everything optimised, the last key issue is to make sure that it stays that way.  Ensure that regular checks are made across the entire system and that any faults are rectified at the earliest opportunity.  The best way to manage this is to ensure that you have a comprehensive maintenance and support agreement in place.

In conclusion modern CCTV cameras are very sophisticated, but it is not just about the technology. Selecting the right equipment, installing it correctly and then maintaining it are just as important and the best way to make the most from your investment in a CCTV system is to use a professional and accredited installation company.

Can Anyone Hear Paint?

Monday, May 23rd, 2011

Innovative electronic security and fire products manufacturer, Elmdene International a subsidiary of Potter Electric Signal, LLC – unveiled its unique Merlin MGD-S Graffiti Detector at the recent security show, IFSEC 2011.

The Merlin is designed to acoustically sense aerosol-propelled spray paints, and sound an alarm, so offering a real deterrent to what can be a costly form of anti-social behaviour. It can also be integrated with remote CCTV and alarm monitoring solutions.

The intelligent Merlin MGD-S Graffiti Detector, which Elmdene believes is the first product of its kind to be launched in the UK market, has already caught the attention of the judges for this year’s IFSEC 2011 Security Industry Awards, having been shortlisted in the key ‘Exterior Deterrent Product of the Year‘ category.

Typically, the compact – 120 x 80 x 50 mm, low visibility, Merlin MGD-S unit is wall-mounted with the range of detection tied in to the installed height. At 4.5 metres an individual unit can, potentially, cover out to 7.5 metres over a 120 degree field of coverage below the sensor. When it comes to its advanced acoustic detection capabilities, the Merlin MGD-S uses phase lock technology to maximise reliability, alarming, when a sound pattern associated with the use of aerosol spray paint is detected, in only 5-8 seconds. It also features tamper protection as standard, has a wide operational temperature range (-20 to 70 degrees C) so maximising potential applications and is straightforward to install with no manual detector configuration required.

Said Ian Moore, Managing Director, Elmdene International Limited: “We believe that there is tremendous potential for the Merlin MGD-S Graffiti Detector to be deployed in a wide range of graffiti prone locations – from the transport infrastructure to public buildings to stem, what can be, prohibitively expensive attacks. To put this into context, the financial burden of graffiti to local government alone, across the UK, is estimated to be over £1 billion, not withstanding the negative impact on the wider community.”

“There are, of course, other anti-graffiti measures available, such as special coatings for walls, but these are not foolproof and still require cleaning following an attack which obviously has financial implications. The real answer to this perennial problem, we contend, is to deploy an intelligent, cost effective, system like Merlin in hotspots to detect and stop graffiti attacks at the earliest possible stage before unsightly damage can be caused.”

Elmdene demonstrated a wired unit which allows the Merlin to be integrated into remote alarm and CCTV monitoring solutions. A standalone version is also to be rolled out shortly. This will deliver the flexibility for users to easily move the Graffiti Detector from one problem area to another.

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