We now find CCTV Cameras
being used in a number of different ways. As the cameras improve, they are used
not only for surveillance, but with better resolution and more available
bandwidth, you can find CCTV cameras being used in producing videos for
training, as well as recording perpetrators of criminal activity.
Over the last decade, the use of Closed-circuit television
(CCTV), has been expanded to include IP cameras in both closed and open
networks. Decentralized IP-based CCTV
cameras, equipped with sensors, can record and transmit images to storage
devices such as Hard Disk Drives, or even to flash memory.
As bandwidth has become more readily available, some CCTV
security cameras are able to capture and transmit High definition imagery over
local networks. There are additional benefits, with remote operational
capability, and resolutions that allow the discernment of license plate numbers
from distant and remote locations.
The cameras have found suitability in surveillance for law
enforcement where details are high -resolution is warranted. Many of the new
models include IR LED for better light, even in the dark.
The features
can include a progressive scan CMOS image sensor, with super high resolution of
1080p with an 3.7 mm lens. Much of the software included in the systems have
also improved to integrate analysis of both video and data.
Many thieves have been caught with CCTV Camera systems that were integrated into “bait cars” with
operational devices that shut the engines and lock the doors when it has been
activated
The camera networks are built to support a multiple number
of cameras, sometimes as much as 2000 cameras from different manufacturers.
Many of today's models are very easy to scale. The biggest advancements have
been made in integration, and the many sensors that have been included are able
to identify and resolve some incidents according to established priority.
What has become even more intriguing is the expanded use
of CCTV cameras into other areas, such as telemedicine or teleconferencing
In situations where high levels of security, networks
cameras can provide 360-degree views with amazing clarity. The occurrence of
blind spots are eliminated, and the need for a multiple number of units is also
eliminated. Images are captured and transmitted with minimal distortion. There
are some models that work in almost total darkness, while still delivering
images with 1920x1080 HD resolution, with
accurate color reproduction.
There is no longer a need to have separate cameras for
operation during the night or day. A new unit, designed for outdoor
surveillance includes auto adjust features for low light conditions. The camera
features a variable focus zoom lens and SRLED IR illuminators. The viewing
range of 30 meters with 1080p resolution HD, makes it easy to monitor outdoor areas
at night without the use of additional hardware
The only apparent disadvantage or perceptions to be
overcome, are the application of IP cameras in external environments. The
cameras need to be resistant to a wide range of temperatures, and varied
weather conditions along with electromagnetic interference. The need is for
hardened systems that can operate reliably to make the crooks job even more
difficult.