CCTV Systems Example

CCTV Systems Example CCTV Systems â€" Essay Example > Role of human operators in CCTV surveillance systemsIntroductionCCT stands for closed circuit television which basically refers to the use of video cameras in signal transmission to particular places (Bogard 1996). The difference between broadcast television and CCT is that in CCTV the signal is not transmitted openly even though it may use links such as point to multipoint, point to point and mesh wireless. Almost every video camera can fit in this definition but the term CCTV applied to those used in surveillance areas where monitoring is needed like in Banks, airports, casinos, convenience stores and military installations. Video-telephony is not commonly called CCTV but when video is used in distance education it is called so since video is a critical tool there. This essay is a discussion of the roles played by the CCTV operator and how these roles relate to the defined role of the CCTV system. Roles of CCTV systemCCTV equipment when placed in a control room is often used in observing various processes for example in a place that is not suitable for people. The systems can be used in a continuous way or can be allowed to operate only for a certain period when a particular event needs to be monitored. There is another form of CCTV that is more advanced and it utilizes digital video recorders to provide recording for many years and has a variety of options of performance and quality as well as extra features such as email alerts and motion detection (Cieszynsky 2008). IP based decentralized CCTV cameras came it use in recent times. Some of them have megapixel censors, support direct recording to devices attached to network or internal flash for total stand alone operations. Public surveillance by use of CCTV is done in many places in the world with the United Kingdom included where the cameras per person are more compared to any other country around the world. However the use of CCTV in the United Kingdom and other places as well has sparked debates abo ut privacy versus security (Bruce, Henderson, and Burton 2001). In the CCTV system there is no public distribution of signals but instead these signals are monitored for purposes of security and surveillance. The CCTV system is supported by cameras placed strategically so that they deliver some input to monitors that are observed somewhere else. Since these cameras are in communication with monitors and video recorders through wireless communication links or private coaxial cable runs they qualify to be called ‘closed circuit’ because there is limited access to the content within them and only those who can access them can see it (Collins, Truett, Van 2000). Older systems of CCTV made use of small black and white monitors with low resolution and no capability to interact. Today’s CCTV displays may be color with high resolution and may have the features and the ability to track someone or something or zoom on an image. Talk CCTV makes it possible for the one overseeing to tal k to people that are within the range of the associated speakers of the cameras (Aldridge 1994).