Close-circuit television or CCTV is the technology which transmits videos from mounted cameras to remote monitors, commonly for security and safety reasons. The transmission can take place either through cables connecting the video camera to the monitors or through wireless connection.

Developed originally in Germany in 1942 to observe the V2-rocket launch by German engineer Walter Bruch, the CCTV system was installed in main business streets to prevent crimes. Banks and stores followed suit, to monitor the activities within the establishment and as a record of evidence of criminal activity. Today, CCTV systems are available for a private individual to install for the security of their homes and properties.

The system works by installing video cameras, which often tilts and pans the room, in strategic places that can give a wide view of the location. These video cameras transmit and record these images to a remote monitor or set of monitors usually observed by security personnel.

CCTV video cameras are installed in many public locations. In banks, airports, subways, stores and malls, police and military facilities and even in the streets. These highly-crowded locations are hotspots for crimes like theft, terrorism and other acts of violence. Studies reveal that a criminal is less likely to commit personal crimes such as physical assault within the view or proximity of a camera. The fact that the suspect’s details can be recorded in the cameras and can be used to warrant his arrest can greatly deter someone from committing an offense.

While it is still being questioned whether CCTV can actually reduce crimes, it has provided help in detecting crimes. The video recordings of the CCTV installed in shops can provide identification to shop-lifters and burglars or clues to crimes done within the vicinity. Other than monitoring criminal acts, the surveillance systems are also being used to combat anti-social behaviours which include minor offenses such as littering, urinating in public, drunkenness, traffic violations and other public order offenses.

Although it is most commonly associated with surveillance and security, there are other uses of CCTV. Electron microscopy, medical imaging and robotics are few other applications. Live on-site video displays for conferences, concerts and sporting events such as boxing and wrestling are also an application of the CCTV technology, as these footages are broadcasted to small and specific areas.

The CCTV systems have various types. Some cameras capture only images, while some can record sounds as well. The type of CCTV camera for a particular business depends on its main usage. If the main purpose is for surveillance or traffic control, it is not required to have coloured cameras; black and white images have better resolution. However, if the main purpose of the CCTV system is criminal identification and deterrence, a coloured system is essential.

CCTV can offer a sense of peace and safety to the everyday citizen; the knowledge that criminals and terrorists are unlikely to commit offenses when there are cameras around help calm people’s minds.

Lessening crime rates and bringing peace of mind to citizens only shows how valuable CCTV systems are these modern times.

Tags: Home Security