Study of control and measurement system for levelling machine based on laser

This paper researched the software and hardware composing and control mode of levelling machine based on laser emitter. After the laser receiver accepts the laser signal, the laser signal is carried through the light filter treatment to reduce the sunlight interference, and then amplified and modulated, last transmitted to the control system. The control system adopts the automatic laser scanner to form the datum plane. Controller controls hydraulic system to driver the executive part to make levelling machine work on a plane that parallels with the datum plane. The test result shows that the levelling precision can satisfy with the request of levelling machine.