Archive for April, 2011

Raytec Promotes ‘Tailored Illumination’

Friday, April 29th, 2011

Without light and illumination CCTV is completely ineffectual. Lighting is a pre-requisite for ensuring that video footage is effective on a 24/7 basis, 365 days a year. Appropriately designed lighting will have a significant impact on CCTV performance.

Illumination, Camera and Lens are essential to any CCTV System. The camera relies on the quantity, quality and distribution of available light, as light controls the appearance of the subject.

CCTV cameras have the ability to detect light outside the range of the human eye which allows cameras to be used with both White-Light and also Infra Red in night-time surveillance applications.

Tailored Products

Lighting specialists Raytec take a tailored approach at lighting and provide security professionals, such as AlertSystems with the products to deliver the full lighting solution for any site requirement including; lighting for CCTV, lighting for Urban environments such as pathways and car parks and lighting for specialist applications such as number plate capture, hazardous areas, or Power over Ethernet (PoE) installations. Raytec are showcasing how these products can be designed into a single lighting installation.

Raytec not only provide security professionals with a comprehensive product range, but every illuminator also has the option to be tailored on-site to suit the specific installation requirements.

Tailored Demonstration

Raytec are showcasing the power and endless possibilities of tailored illumination at IFSEC 2011 through three separate demonstrations.

• One demonstration will show how a modern, high performance lighting system, of up to 100 illuminators can be controlled remotely, either as single illuminators, batches of illuminators or as an entire system, via a single remote IP platform. The lamps can be altered to respond to changes on scene, operating conditions and operational requirements, improving performance for the end user and reducing installation time for the installer.

• Raytec are also running a live demonstration showing how professional lighting can be used with any network camera to reduce both bandwidth and storage by up to 90% and significantly improve image quality at night.

• The new Technology Alliance Partner Programme (TAPP) is also being showcased at IFSEC. The TAPP programme is designed to show how Raytec illuminators can be used alongside specific cameras and other security technologies to achieve best practise in night time performance. TAPP offers installers recommended guidelines and installation tips to maximise the performance of their chosen system.

The Power of a Network

Tuesday, April 26th, 2011

In a recent article David Hammond, European sales manager for Sanyo, provided an overview of Power over Ethernet (PoE).

The opportunity to provide power to network security devices such as cameras over the same cable that carries data has been possible for some time, but the acceleration in the number of IP network based security systems has seen an increasing number of manufacturers building the option of PoE into their equipment.

PoE technology allows DC power and data transmitted at high frequency to utilise the same ‘Ethernet’ cable without interference.

One of the main benefits is the fact that separate power cables and power supplies do not have to be installed for each camera. This can represent quite significant cost savings in terms of the cost of installing a new IP network based surveillance system or retrofitting additional cameras to an existing system.

On large projects, further cost savings can be achieved by employing non-certified electricians to install the cameras, and PoE provides an additional advantage for multi-national companies who require an integrated networked security system in that variations in power standards do not have to be taken into account.

PoE can improve camera reliability as it is designed to prevent power surges or under powering and the centrally supplied power can be backed-up by an uninterrupted power supply (UPS).  Care needs to be taken as the batteries which support the UPS are only be able to provide back-up power for a limited time.

The consequences of a loss of power to cameras and recording devices, as a result of a network failure has to be taken into consideration for ‘business critical’ security projects.

If you are considering a PoE option it is important to use an experienced installation company, who use can supply quality equipment. There is a risk when using ‘budget’ level equipment that it is not able to supply full power for all outputs.

©2013 AlertSystems Ltd