Security
Caught on camera
Paul Dawson, Managing Director of ESPlooks at how installers can take advantage of the continued growth in the CCTV sector by adopting the latest technologies.
A
ccording to a recent research study, the market for global CCTV is expected to grow at a compound
annual growth rate (CAGR) of around 12% during 2015-2020. In the UK in the short to medium term future, the prospects for the overall electronic security market are positive. While there have been a number of budget cuts which will continue to impact, on large scale projects in the public sector, the improving economic climate should support installations in some private end-use sectors, with overall market growth of over 10% forecast for 2014-2018. To date, analogue CCTV has been more appealing due to its low cost and simpler installation and the fact that virtually any analogue CCTV camera can be plugged into any analogue DVR using the same camera to DVR cabling. This means that CCTV installation has literally been as simple as plugging and playing. However, there is a growing demand in the
CCTV sector for systems with high definition image resolution and there are now several options available, which installers can consider for those customers looking for an upgrade to
their existing analogue solution, or those wanting to adopt a CCTV system for the first time.
HD-SDI (High Definition Serial Digital Interface)
This is the most mature HD option available
and produces 1080P HD resolution images. This can be considered when upgrading from a standard analogue CCTV system to a HD system,
because it can operate on the same cabling already installed. What must be considered before installation is the fact that the DVR to camera cable run has a limitation of 100m (this can be increased using extender units) and the grade and quality of the cable must be high in order to successfully carry the HD-SDI video signal. In system upgrades both the DVR and the cameras will need replacing with HD-SDI units.
IP (Internet Protocol) IP CCTV is producing images of great quality
in a convenient and energy efficient manner. IP cameras work by turning images and audio into data and transmitting this data over a network or Internet connection. The ultimate benefit of this over analogue CCTV systems is the potential to integrate IP CCTV into existing IT networks and CAT5 cabling infrastructure. This solution is especially beneficial when
tackling coverage of much larger areas such as university campuses, multi-level buildings and multi-site retail stores. IP also offers the highest resolution cameras, albeit at the highest cost, and it is important to consider that regardless of a camera’s image quality claims, the video signal
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