WHAT IS CCTV?
CCTV (Closed Circuit Television) is a visual surveillance
technology designed for monitoring a variety of environments and activities.
CCTV systems typically involve a fixed communications link between
cameras and
monitors.
In the past decade,
the use of CCTV has grown to unprecedented levels. Most US towns and cities are
moving to CCTV surveillance of public areas, housing estates, car parks and
public facilities. Growth in the market is estimated at 20% to 25% annually.
Many central
business districts are now covered by surveillance camera systems.Their use on
private property is also becoming popular. Increasingly, police and local
councils are placing camera systems into housing estates and red light
districts. Tens of thousands of
cameras operate in public places,; in phone
booths, vending machines, buses, trains, taxis, alongside motorways and inside
ATMs.
The video
surveillance boom is likely to extend even inside the home.
The limits of
CCTV are constantly extended.
Originally installed to deter burglary, assault and car
theft, in practice most camera systems have been used to combat 'anti-social
behavior', including many such minor offenses as littering, traffic violations,
obstruction, drunkenness, and evading meters in town parking lots.
CCTV is very quickly becoming an integral part of crime
control policy. It is promoted by police and politicians as primary solution
for urban dysfunction. It is no exaggeration to conclude that the technology
has had more of an impact on the evolution of law enforcement policy than just
about any technology initiative in the past two decades.
2. What sort of technology
is used in CCTV systems?
The modern CCTV system involves a linked system of cameras
with full pan, tilt, and zoom able to be operated remotely from a control room.
These systems may
involve sophisticated technology. Features can include night vision, computer
assisted operation, and motion detection facilities which allows the operator
to instruct the system to go on red alert when anything moves in view of the
cameras. Camera systems increasingly employ bullet-proof casing, and automated
self defense mechanisms which ensure that cameras under attack are covered by
neighboring cameras. These can be legitimately described as military style
systems.
The clarity of the
pictures is often excellent, with many systems being able to recognize a
cigarette packet at a hundred meters, like
Hikvision DS-2CE16C8T-IW3Z The systems can often work in pitch
blackness, bringing images up to daylight level.
A security camera can come in many different styles including
dome,
bullet, infrared and c-mount. The security camera that will work best for your application will depend on several factors such as whether you will use the security cameras inside or out, during the day, nighttime, or both.
3. Can CCTV reduce crime?
As a conclusion, let’s
see main privileges of CCTv technologies:
1. Analogue CCTV is a stable and well-established robust
technology which is supported by all major CCTV manufacturers
2. Simple and easy to install, setup, operate and maintain
3. No compatibility issues among the cameras and
DVRs
4. Video signal is transmitted directly from the camera to the DVR with no
delay
5. There is 100 per cent guarantee for no loss of frames or any video
recordings in general
6. Operators can observe live view of all connected cameras with no delay
7. Full frame rate of 25 frames per second recording with a full video
resolution is easily achievable
8. Analogue CCD cameras demonstrate better performance in low light conditions,
than megapixel CMOS cameras
9. Video transmission for up to 300m distance can be achieved with standard RG59
coax and no additional signal boosters
10. The total cost to build, setup as well as to maintain an analogue CCTV
system, is very affordable – this is the most economical of CCTV technologies
Technology moves rapidly ahead these days, with many ways of increasing the effectiveness of both new and existing systems. Multiplex recording, video transmission, color cameras, detection of movement, etc. are all very much more advanced than only one year ago. Even so, products with apparently similar specifications to the layperson can differ dramatically in actual performance under particular circumstances. This is especially true today in the case of digital recording and so called digital cameras. Here again, objective advice can be invaluable in the selection of the right equipment for the job. So, if you are looking for guidance on the purchase of a
CCTV system for your organisation,
KOA CCTV is here to help You, with its wide arrangement of security systems from leading manufacturers, such as
Hikvision,
Denon,
Middle Atlantic,
Ring, etc.
nk of CCTV
