What is the difference between a camera and a monitor?
Camera digital camera The wide range of cameras, the basic principles of its work are the same: the optical image signal into electrical signals, in order to facilitate storage or transmission. When we shoot an object, the light reflected on the object is collected by the camera lens, focusing it on the light receiving surface of the camera (such as the target surface of the camera tube), and then through the imaging device to light into electricity, that is, "Video signal". Photoelectric signal is very weak, need to be pre-amplifier circuit to enlarge, and then through a variety of circuits for processing and adjustment, the final standard signal can be sent to the recorder and other recording media recorded, or spread through the transmission system or sent to the monitor display.
You said the difference between the "camera and monitor", that is, family (professional) with the camera and monitor the difference between the camera, their biggest difference is the family (professional) with a camera with viewfinder (LCD or electronic images ) And the storage system (hard disk memory, flash memory, tape memory), and the monitoring camera does not.
Monitor (accurately should be called the monitoring system), including video surveillance system, infrared monitoring system, audio monitoring system and so on. Among them, the video surveillance system includes a camera (surveillance camera).
With the monitoring system in the commercial and civilian increasingly popular, surveillance cameras (surveillance cameras) are widely used in various fields, escort for social security. Video surveillance cameras are widely used in residential, real estate villas, shopping malls shops, financial room, to security.
Say a simple point, the family (professional) with a camera is a complete "camera, video, playback, display" device, while the surveillance camera is just "camera" device, and no video, playback, display function.
