CCTV Systems

CCTV systems, or Closed Circuit Television systems, is a system of remote monitoring with the use of cameras. The video cameras are used to transmit signals to a specific location where they may be viewed by a limited set of monitors.

The difference between a Closed Circuit Television (CCTV) system and a television broadcast is that the number of receptors in case of a CCTV monitors are numbered or limited and are also known beforehand. Here the signal is not openly sent but sent to a limited number of monitors by employing point to point links which are generally wireless.

There are many ways through which CCTV systems can go about their job. They may both passively record videos and playback at certain intervals, or can be actively monitored by a group of security personnel. Further, a combination of the above two techniques can also be employed to increase the efficiency of the system. Digital Video Recorders are used in advanced form of CCTV systems using which we can record for several years at a stretch.

CCTV systems are often of much use in banks, casinos, airports, in shopping stores and in the military. Another very important use of CCTV systems is in environments which are not conducive for humans. Certain processes in the industry which are termed dangerous for humans are usually overlooked or supervised by video surveillance systems.

Closed Circuit Television systems are used to detect traffic congestions and accidents in many places. The data from this CCTV system can be sent to a driver’s Global Positioning system . These CCTV systems are often believed to be an effective tool for crime prevention. According to results, the crime rates in many countries have reduced with the installation of such systems. Further, the use of CCTV systems in schools has shown to decrease instances of graffiti, fights, thefts and drug usage.

The advantages and applications of such systems are innumerable. However, there are many who feel that their privacy is being lost by the extensive use of such systems. This has given rise to a debate on surveillance systems versus privacy. Those in favor of such systems advocate that private places are not being monitored y such systems. Rather, it is the public places which are being monitored and hence nobody’s privacy is being compromised with. Those against the use of such systems believe that these systems merely detect crimes rather than preventing them.

The possibilities which these systems have to offer are endless if they are combined with existing and upcoming technologies. However, its extensive usage can lead to the disruption of the privacy of people. So there should be a balanced approach in the application of this technology such that it used for the benefits of the people and prove to be a boon for the future.

Posted on February 27, 2009 with 1 Comment