Vehicle-mounted mobile mapping is on the motor vehicle assembly GNSS (global positioning system (GPS) CCD (video system) INS/DR (inertial navigation system or traffic prediction system) advanced sensors and equipment, such as the vehicle high speed, fast road and terrain on both sides of the space data and attribute data, and synchronizing storage in the on-board computer, through the special data processing software to edit processing, forming all kinds of useful thematic data results With field data acquisition speed The characteristics of high precision.