DEFINITION
CCTV stands for closed-circuit television and is commonly known as video surveillance. It is defined as a TV system in which signals are not publicly distributed but are monitored, primarily for surveillance and security purposes.
USAGE
- Maintaining perimeter surveillance.
- Building and grounds security.
- Obtaining a visual record of activities in situations where it is necessary to maintain proper security
like:
- Banks
- Casinos
- Airports
- Hotels
- Hospitals
- Street traffic monitoring.
- Overseeing locations that would be hazardous to a human, for example, highly radioactive or toxic industrial environments.
APPLICATIONS
Crime Management
CCTV surveillance can deter potential criminals. When a crime does occur, video footage can help law enforcement to investigate and later provide evidence for the prosecution in a law court. For businesses, CCTV cameras can detect and monitor in-house criminal activities. Security cameras are able to monitor areas that are not easily accessible, e.g. rooftops.
Disaster Management
Using CCTV cameras, emergency services and rescue workers are able to assess and monitor events in real-time to relay a “situation” via video to disaster management teams, e.g. from inside a burning building, or from a helicopter flying over a scene.
City and Community Street Monitoring
Cameras at traffic lights and elsewhere in cities monitor people to gather traffic statistics as well as evidentiary footage for speeding. Some sensory nodes include security cameras that analyze the images they record but, in order to protect individuals’ privacy, do not transmit or store these images.