What is the internal structure of the pan tilt? First of all, let’ s start with the purpose of the pan tilt.
 
The pan tilt is a supporting device for installing and fixing the camera. It can ensure that the camera can move in four directions, up, down, left and right, to obtain a wider viewing angle. The function and function of the surveillance PTZ is to support adjusting the camera focus, depth of field, and aperture to obtain better image collection effects at any time. The pan tilt and protective cover provide a suitable working environment for the camera and lens, and enable horizontal and vertical adjustment of the shooting angle. The PTZ decoder converts the digital signal from the control end into an electrical signal to drive the PTZ to operate. The decoder is the core equipment for pan tilt and lens control. It enables the use of a microcomputer interface to control the lens and pan tilt through software. After the camera is installed on a fixed pan tilt, the horizontal and pitch angles of the camera can be adjusted to achieve the calibrated angle. , this is the function and role of the monitoring PTZ.
 
The pan tilt carries the camera to rotate in both horizontal and vertical directions. The pan tilt is equipped with two motors. One of the two motors is responsible for the horizontal rotation and the other is responsible for the vertical rotation. The angle of horizontal rotation is generally 360 degrees unlimited rotation, and the vertical rotation is 30 degrees, 45 degrees, 60 degrees, etc. The angle of horizontal and vertical rotation can be adjusted through the limit switch. Its overall working voltage generally includes AC 24V, AC 220V and DC 24V. When receiving the upper and lower action voltages, the vertical motor rotates and drives the vertical transmission wheel through the reduction box to rotate; when receiving the left and right action voltages, the horizontal motor rotates and drives the horizontal gear plate at the bottom of the pan and tilt through the reduction box to rotate . The pan tilt has horizontal and vertical limit bolts, and the pan tilt has two micro switches to realize the limit function. When the rotation angle reaches the preset limit bolt, the micro switch cuts off the power and the pan tilt stops rotating.
 
The above are the main functions and internal structure of the pan tilt.