A CCTV (closed-circuit television) appliance system is a private video surveillance system that uses strategically placed cameras to capture and transmit footage to authorized users for real-time viewing or later playback. It consists of cameras, video recorders (like a DVR or NVR), monitors, and the necessary cables or wireless connections to link them. These systems enhance security by deterring crime, monitoring activities, and providing evidence for investigations by recording events on a closed loop that is not publicly broadcast.
*Cameras : These are the primary components that capture images of specific areas. They can be traditional analog cameras or digital IP cameras
*Video Recorders : These devices process and store the video footage. They can be:
*DVR (Digital Video Recorder) : For analog systems, it converts analog signals to digital format for storage.
*NVR (Network Video Recorder) : For digital (IP) systems, it records video streams directly over a network.
*Monitors : These display the real-time footage or recorded playback.
Capture : Cameras positioned in strategic locations capture a continuous sequence of images.
Transmission : These video signals are sent through cables or wirelessly to a central system.
Processing & Recording : The recorder (DVR or NVR) processes the signals, digitizes them, and stores them on internal storage for later viewing.
Viewing : Authorized users can view the live feed on monitors or access the recorded footage for playback.
*Deterrence : The visible presence of cameras can deter potential intruders and criminal activity.
*Monitoring : CCTV provides real-time surveillance of a property, both during and outside of operating hours.
*Evidence Collection : Recorded footage serves as crucial evidence for identifying criminals and resolving investigations.
*Process Optimization : In commercial and industrial settings, CCTV can monitor workflows, ensure safety compliance, and track logistics.