We know the word CCTV as a surveillance camera, but what is CCTV really? CCTV (Closed Circuit Television) is a closed television broadcast that serves as a surveillance camera system (camera surveillance) which means a camera system that records all forms of activity in a particular area and display it in video form broadcast television that can be accessed in private. Closed here means that television broadcasting is not openly accessible as we watch television shows, CCTV can only be accessed by certain people concerned.
History of CCTV
The inventor of the CCTV camera system was Walter Bruch in the year of this system designed and installed observe the VII rocket launch. The first closed-circuit television was installed by Siemens AG in Test stand VII.
Walter Bruch, the inventor of CCTV
In modern times still using this system to record the location of CCTV rocket launch they are used to be able to follow closely every step of the rocket to learn the trajectory and movement in order to find possible causes of error. Leading Usually larger rockets have already been inserted CCTV.
In 1960, UK officials began installing CCTV Camera systems in public places to monitor crowds during demonstrations and public figures. Camera mounting is becoming more popular, both in public spaces and retail stores, as the technology is being developed. Today in Britain, Camera CCTV monitors roads, sidewalks and pitches in the city center, railway and public bus stations, as well as in retail stores and other businesses. In 1996, government spending on CCTV technology accounted for three quarters of the UK crime prevention budget.
In the United States, the first CCTV Camera system was set up in a public building in 1969 in the New York City building. This practice quickly spread to other cities and was soon widely implemented. Unlike the UK, CCTV cameras in public spaces in the United States are rarely used. However, in the 1970s and 80s, CCTV use became more common in companies vulnerable to security threats, such as banks, department stores, and gas stations. Security cameras were installed at the World Trade Center as a precaution after the terrorist attacks in 1993. By doing so, ATMs of the mid-90s throughout the country were generally equipped with CCTV Camera cameras, and CCTV Camera retail stores were widely used to prevent theft. Until now not only shopping areas or important areas, CCTV also many in pairs for the security of residential areas or private homes.
Differences CCTV camera with other digital cameras
Basically CCTV cameras are not different from other digital cameras because the basic function of the camera is to capture images of certain objects and display them into video or image formats in certain formats. The fundamental difference between CCTV cameras with other digital cameras is If in digital cameras known term megapixel to determine the quality of the resulting image, then in the CCTV cameras known as TVL (TV Lines). Megapixel is a unit used to measure how many points are generated to create an image while TVL is the unit used to measure how many horizontal and vertical lines are generated to create an image. However, there are types of CCTV cameras that use the megapixel camera type CCTV IP.
In addition to resolution, another fundamental difference is the designation of the camera itself, digital cameras generally serve to take a picture of a particular object at a certain time while the CCTV camera serves as a surveillance camera that will certainly work all the time to supervise a particular object. Here it is clear that CCTV cameras have the ability to operate standby for 7 x 24 hours for a week without rest which this capability is not owned by other digital cameras.