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Cctv Camera



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The Benefits of

CCTV is the abbreviation for closed circuit television and it refers to transmitting a signal to specific monitors. The sets of monitors that receive the signal from a CCTV camera are specific and their number is limited. Unlike broadcast television, a CCTV security camera doesn’t transmit the signal openly. The most common feature of CCTV is that of being used for surveillance, and , therefore CCTV security cameras are most likely to be found in crowded places or places where security is a must, such as airports, banks, ATMs, military facilities, casinos, etc. A CCTV camera can also be found in a corner shop or a gas station, if the owner chooses to install one in order to ensure protection for customers.

But CCTV cameras are not limited to watching airports and banks. They can also be installed in environments that are not comfortable for people, or with the purpose to record a process that is observed and controlled from a control room. The conditions under which some industrial processes take place are dangerous for people and it is for this type of processes that CCTV cameras are designed. The law sometimes requires the installation of such CCTV cameras for industrial processes that take place inside reactors or inside the facilities that produce nuclear fuel.

A CCTV camera can now be found inside taxis as well, with the purpose to deter violence against the taxi driver. CCTV cameras are used in police vans when these are on a surveillance mission.

Although their primary purpose is that of ensuring security, the CCTV security cameras have caused an on-going debate, because of the fact that they are increasingly used in public places. The issue is that a CCTV camera violates the right to privacy, which some people consider more important than their own security.

CCTV cameras where initially used inside government facilities and when they began to be used outside these facilities, it was primarily for security inside banks. However, the system has experienced such a growth and the expenses of purchase and installation of a CCTV camera have dropped so much that it is now affordable and advisable for individuals to have their own CCTV security camera inside their homes. CCTV security cameras are now used successfully in parking lots and statistics show that car crime was significantly reduced after the installation of such cameras. However, as far as the other institutions are concerned, the installation of a CCTV security camera has yet to prove its benefits regarding crime deterring. Some communities have embraced this security system, others haven’t. In some cities, there are CCTV cameras everywhere, providing surveillance on estates, car parks, stations and so on. In other countries, CCTV security cameras are not so common because they meet strong opposition due to their lack of privacy.

Eventually it has been agreed that CCTV cameras don’t have a spectacular effect as far as crime prevention is concerned, especially if we consider the fact that these cameras often become targets of violence themselves. However, the effect on detecting criminals is the most considerable and the images caught by CCTV security cameras can be used to prosecute such criminals.

CCTV cameras can also be installed for safety, not just for security. Such cameras will be found in amusements parks, to make sure that no one is endangered when a ride starts, or on subway trains, to confirm that no person will be injured by the closing of the doors.

Traffic congestion and accidents are often noticed with the help of a CCTV camera, which is part of the system that monitors traffic. The registration plates of a car are sometimes read with the aid of a CCTV camera and the owner is fined in case of misconduct in traffic.

For more resources about CCTV camera and especially about CCTV security system please review this website http://www.securicorp.com



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What is the BEST CCTV Camera available?

I am looking for a CCTV camera, which would be able to capture video of proper HD quality, and which should be able to produce a very good quality of video during both day and night (so that it would be able to zoom in on faces at a distance of 10-20 metres). What is the best camera available at present, and how much does it cost?

Hello

Note: The DVR (digital video recorder) is just as important as the camera.

http://www.ascendentgroup.com/x4s.htm

Yes High definitions mega pixel cameras do offer some advantages but are extremely limited in there applications. and represent less then 1% of the total market yet are often touted as the main advantage IP cameras over analog cameras. Mega pixels cameras are limited because of there poor price to performance ratio, large file size, low signal to noise ratio, motion blur, and most are based on CMOS which means they inferior ability to cope with ambient lighting such as back light, bright, deep shadows contrasts, low light and IR this is also known as the real word so are often only used in non critical indoor applications. (why mega pixel cameras are less then 1% of the market)

CCTV HD cameras are based on CMOS what you want is CCD.

CCD image sensors contain hundreds
of thousands picture elements, called pixels. Each pixel contains a light sensitive element and a capacitor.

This means CMOS has some significant disadvantages compared to CCD, this means CMOS
have inferior ability to cope with ambient lighting such as back light, bright, deep shadows contrasts, low light and IR this is also known as the real word.

If you want a good image go CCD if you want a big image go IP CMOS.

In short unless you have perfect lighting a good CCD camera will outperform an equivalent CMOS camera.

IP cameras have up to a 5X larger file size then analog cameras. (at same resolution) I have seen MP cameras that on 2MP resolution are over 300X (%3000) then a CIF image. This is an extreme case but generally speaking IP cameras have a much larger file size.

If you compare a good D1 resolution image and compare it with a 2MP you will very little deliverance any many times I have had people who choose the D1 using out 550TVL camera due to its better color reproduction and its ability to handle changing ambient lighting conditions.

What I suggest. PTZ Camera
A Pan-Tilt-Zoom camera (PTZ Camera) is a closed-circuit television camera with remote directional and zoom control. PTZ cameras allow users to take the driver’s seat and aim cameras exactly where they want. The use of PTZ cameras is generally a very advantageous solution for the surveillance of a site since it makes it possible to cover a wide surface with only one camera. Ascendent’s PTZ line-up ranges from precise weather-proof domes to high performance, explosion-proof housings. These cameras give you full capability to maneuver your way to areas of concern with 360° panning, long-range optical zoom, and 180° or more tilt range.

If you want night vision you will need IR: http://www.ascendentgroup.com/downloads/cameraspecs/FLEX-23X-LIR.pdf

Unparalleled Active IR Imaging
Unlike traditional IR night vision cameras that use standard CCD lenses and LEDs that operate autonomously, Ascendent’s Active IR cameras have integrated AMC (Automatic Processor Control) and EPC (Electronic Photocell Control), MICF and a host of other technologies, to ensure the Optics, image sensor, lens, MICF and super bright IR LEDs work in tandem to eliminate hot-spots, washout, and under exposure usually associated with IR cameras. For flawless active IR performance up to 200m (650ft) Ascendent’s IRs are optimally spaced and use different sized and angled LEDs to provide evenly distributed IR to offer both long range and wide angle illumination. Ascendent’s IR cameras are designed to offer absolute performance and use the highest quality components and unique manufacturing processes to increase performance and reliability such as dual PC board design and hand welding of all the IR LEDs (Vista and Apex Series). All these components are integrated into rugged IP 66-68 Nema 4X enclosures constructed of extruded aluminum and thick, high- impact, optically pure polycarbonate to withstand the most brutal assaults and extreme climates for 24/7 surveillance in mission critical applications.

I would recommend using Ascendent CCTV Equipment http://www.ascendentgroup.com/

If you like send me an email ill show you a white paper about how to evaluate image quality.

Hope this helps
Will
williammorales93@ymail.com