A video security camera is most of the time used in a CCTV circuit. The closed
circuit system makes extensive use of video cameras to provide up to date and
detailed shots of almost every angle under security. The video security camera
is thus linked to others in a circuit, its feeds coming across a monitor from
where the person keeping an eye on the security can view all the different
images.
This type of system often makes use of a quad, a device whereby the screen of
a monitor is split in four to allow for four different recording camera images.
Video security camera also comes as wireless or wired. The wireless video
security camera transmits images through a built-in transmitter, and the
receiving device picks up the signal to record or play the feed. Standard
wireless cameras can transmit to up to a thousand feet, while more powerful
cameras can even cross the two thousand feet line. When the camera is wired, it
can be connected to a recording device and its images transferred this way, to
be stored on disk or on tape.
For this purpose, the DVR- digital video recorder- is slowly but surely
shoving the analog video recorder box out of the picture. DVR allow for the
recording of high resolution digital images to a hard disk drive. This
eliminates the need for VHS tapes, while also eliminating the damage factor of
the tape. Digital images can be stored indefinitely with no change in the
quality, and DVR recording capacity can be increased using a bigger hard disk.
DVR also allows for easier search parameters, and has the convenience that it
can be accessed anywhere around the globe using the Internet.
Video security cameras can come equipped with IR illuminators and motion
sensors for added accuracy, as well asnight vision properties that provide a
reconstructed live image even in pitch black night.
Security Video Cameras are becoming standard issue when it comes to Security
Camera Systems.
