Vehicle-mounted measuring device for monitoring three-dimensional deformation of subway tunnel based on reference transmission

The utility model belongs to the technical field of metro tunnel three-dimensional detection, and discloses a metro tunnel three-dimensional deformation monitoring vehicle-mounted measuring device based on reference transmission, which comprises a laser range finder, an inclination angle sensor, a high-precision rotary table and a PLC (Programmable Logic Controller) which are jointly integrated into a rotatable laser range finding system for high-speed range finding and angle measurement, measuring the tunnel section profile in a discrete multi-point mode; meanwhile, in combination with photoelectric encoders installed on distance measuring wheels at the bottom of the tunnel detection vehicle, the fixed displacement between the starting position and the driving position of the detection vehicle in the axis direction of the tunnel is obtained, a program is triggered, and detected data at the specific position in the tunnel are transmitted to an upper computer through a wireless communicator. According to the u