The functional types and characteristics of surveillance cameras are as follows:
1. Integrated camera: built-in lens, can automatically focus, easy to control the lens, easy to install and debug;
2. Infrared day and night dual-purpose camera: the camera, protective cover, infrared lamp, and power supply and heat dissipation unit are integrated into an integrated camera device, which has the advantages of long night vision, strong concealment, and stable performance;
3. Bolt camera: It is cheap, but it does not have zoom and rotation functions, and can only complete surveillance at a fixed angle at a fixed distance, and has poor concealment.
4. Dome camera: It has a certain degree of concealment*, and at the same time it has a small and beautiful appearance, and can be hoisted on the ceiling to make up for some of the shortcomings of the camera;
5. Network camera: also known as IP camera. It can digitally process and compress the image after it is collected, and send the compressed video signal to the server or client side through the IP network; on the server or client side, the remote image can be viewed in real time through software
6. High-speed dome camera: a device that integrates an integrated camera and a pan/tilt. It also has the characteristics and functions of fast tracking, 360° horizontal rotation, no blind spots for surveillance, and shielding of privacy areas;
