Closed Circuit Surveillance Systems, CCTV, Security Cameras

Closed Circuit Surveillance Systems, CCTV, Security Cameras

Security cameras come in all shapes and sizes. They can be remotely observed via smart phone, a component of a CCTV system, and / or a part of a wireless system. Whichever of these options you may choose, you can be assured that security cameras are a one up in the notch of your security system comfort.

About Closed-Circuit Television

Closed-Circuit television, or video surveillance, is the use of security cameras to transmit a signal to a specific place, on a limited set of monitors. The first CCTV system was installed by Siemens AG at Test Stand VII in Peenemünde, Germany in 1942.

At the beginning of video surveillance is was nearly impossible to save the video since there was no digital video recorders and no way to actually save the video until the development of reel-to-reel media. The reel-to-reel media required magnetic tapes that needed to be changed manually which was time consuming, unreliable, and expensive. Video surveillance did not become widespread until VCR / Betamax technology became available in the 1970’s.

CCTV Systems Times Square 1970

The first application on video surveillance in the United States occurred in September of 1968 in Olean, NY. Video cameras where installed along the main business street in an effort to fight crime. The NYPD installed surveillance camera in Times Square in an effort to deter crime, in 1973 it didn’t appear to have any affect on the crime rate. In 1998 there were some 3,000 CCTV systems in use in New York City.

Uses of CCTV Systems

There are a number of other applications for CCTV systems besides just the detriment of crime. Some of the other applications are transportation safety where a CCTV system is installed where an operator of a machine cannot directly observe people who may be injured by some unexpected machine operation, an example of this is a subway train that has cameras so that the operator may confirm that people are clear of doors before closing them.

There is also the control of retail where the CCTV is used to monitor the actions of retail workers. Every action is recorded as an information block with subtitles that explain the performed operation. This helps track employee actions, especially those that are making financial transactions like correcting or canceling a sale, withdrawing money or altering personal information.

According to CCTV Image Magazine the estimated number of surveillance cameras in the United Kingdom in 2011 was 1.85 million or about an average of one camera for every 32 people in the UK.

CCTV System Technological Developments

The advancement of technology has brought about the advancement of video surveillance which allowed for the development of Video Content Analysis or VCA. The VCA system automatically analyzes video to detect and determine temporal events not based on a single image. The VCA can recognize changes in the environment and even identify and compare objects in the database using size, speed, and color. The system can then be programmed to issue and alarm if a particular area has changed or if the system recognizes any unusual patterns in the environment.

There is also the development of facial recognition system where a computer application automatically identifying or verifies a person from a digital image or a video frame from a video space.

The retention, preservation and storage of the video can be recorded directly to a server that is either on-site or off-site. There are a number of different proprietary file formats in which the video is saved from the DVRs and they can be preset to retain a certain amount of time and then automatically archived, overwritten or deleted, the period being determined by the organization that owns the system. The videos and images may be monitored remotely when the computer is connected to a network.

IP Cameras, Wireless Security Cameras and Integrated Systems

There are a growing branch of CCTV that is IP (internet protocol). These cameras use the internet protocol of LANs to transmit video across data networks in digital form. The video can also be transmitted across the public internet allowing people to view these video feeds directly from their computers or mobile device. IP Cameras

Wireless security cameras have become used more frequently by consumers for home surveillance. The wireless cameras are either hard wired only for power or run off of batteries. This makes them inexpensive to install and the digital technology delivers crisper audio, sharper video, and a secure and interference free signal.

Contact Us

If you are interested in a new video surveillance system or maybe you are looking to upgrade your existing security system and you are not sure where to begin you can either give us a call at 646-781-7001 or you can complete the contact us form below and someone will be in contact with you.

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