Cameras: CCTV systems use cameras to capture video images. These cameras can be placed in various locations like homes, businesses, public places, and more.
Closed-Circuit: Unlike regular television broadcasting, where anyone with the right equipment can tune in, CCTV is a closed system. This means that the video feeds are not accessible to the general public. Only authorized users can view or record the footage.
Television: The captured video footage is displayed on a television screen, monitor, or computer. This allows users to watch what the cameras are recording in real time.
Security and Surveillance: CCTV systems are commonly used for security and surveillance purposes. They help monitor areas to prevent theft, vandalism, and other criminal activities. For example, a store might use CCTV to keep an eye on its merchandise or to identify shoplifters.
Recording: In addition to real-time monitoring, CCTV systems often have the capability to record video footage. This means that even if no one is actively watching the screens, the recorded footage can be reviewed later.
Storage: Recorded video footage is stored on devices like hard drives, DVRs (Digital Video Recorders), or NVRs (Network Video Recorders). This storage allows users to access and review past footage when needed.
Remote Access: Many modern CCTV systems can be accessed remotely via the internet. This means that authorized users can view live or recorded footage on their computers or smartphones from anywhere with an internet connection.
Cameras come in various types: CCTV cameras can vary in size, shape, and capabilities. Some are fixed in place, while others can pan, tilt, and zoom to capture different angles. There are also specialized cameras for specific purposes like night vision cameras for low-light conditions.
Widespread Use: CCTV systems are commonly used for various purposes, including home security, monitoring public spaces like airports and train stations, traffic surveillance, and in businesses like retail stores, banks, and factories.
In essence, CCTV is a system of cameras that record and display video footage for security and monitoring purposes, and it's an important tool for keeping people and property safe.