- 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 prosecution in a law court. Used in conjunction with CCTV, audio, thermal and other types of sensors can alert officials to occurrences that are out of the ordinary, e.g. a fire or gun shots at a location. For businesses, CCTV cameras can detect and monitor in-house criminal activities. Prisons may use video surveillance to prevent drones from delivering drugs and other contraband to prisoners. 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, from a cave 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. An heir to the IoT, the AoT is a Chicago initiative to collect real-time data, primarily weather and environment, about the city. 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. In the main, a limited number are stored for use by senior researchers in order to “develop the computer vision software”. The project has met with some resistance from privacy watchdogs.
- Medical monitoring and diagnosis
There are about 43 facial muscles that express people’s thoughts and feelings. Smart software can identify these expressions, e.g. pain or anxiety, from images more easily that people can. CCTV cameras can also monitor patients – for instance children or the elderly – to identify potential medical crises, e.g. a stroke, or an epileptic or asthma attack.
- Behavioral research
CCTV used to research suicide found that 83 percent of people attempting to throw themselves in front of a train showed specific behaviors. These were later analyzed from CCTV footage and are now used to alert monitor watchers to potential suicides. Surveillance networks are also used by researchers to record crowd activities in public places and prevent anti-social behaviors. For instance, cameras have been used at schools for security, and to record bullying or playground incidents on video.
- Retail intelligence
Market intelligence garnered from video surveillance of customers is being used to analyze buying trends and enable enhanced strategizing, e.g. how do people shop, which aisles do they traverse the most, how likely are they to respond to calls to action within different store layouts. Heat maps can show the highs and lows of shopper traffic at specific locations in a store, helping stores to identify peak buying times, preferred promotion types, and staffing requirements for peak shopping periods.
CCTV, also known as closed-circuit television, is a security monitor system that enables you to always keep a watchful eye around or in your business. CCTV security systems contain monitors and cameras that allow you to view live events, as well as recorders that archive footage for later use.
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- One or more cameras (analog or digital), each with a lens equipped with an image sensor
- A recorder – Either a standard video tape recorder for analog systems, or a Direct Video Recorder (DVR) or Network Video Recorder (NVR) for digital systems
- Cables – Either RJ45 for digital or coaxial for analog
- One or more monitors to which the images are transmitted