PTZ camera is composed of a car DVR, a monitor, a control keyboard and a 3G 4G wireless video transmission device to form an in-vehicle monitoring system.. With the development of monitoring systems, vehicle-mounted PTZ cameras are widely used in field military exercises, police, fire scene command and exploration, as well as road emergency, urban management inspectors, airports and other emergency command systems, The 360 ° horizontal operation design is very suitable for temporary emergency deployment and mobile surveillance requirements.