Calibration method, system and equipment of magnetic induction plumb coordinatograph and medium

The invention provides a calibration method, system and equipment of a magnetic induction plumb coordinatograph and a medium, and relates to the field of plumb coordinatographs. A plurality of grid lines are divided in the X direction and the Y direction in the measuring plane measuring range of the magnetic induction plumb line coordinatograph, so that the measuring plane measuring range of the magnetic induction plumb line coordinatograph is divided into a plurality of grid intervals, and a corresponding grid chart is obtained. Thirdly, on the basis of the grid lines in the X direction and the Y direction of the grid chart, constructing a displacement-voltage value calibration equation corresponding to each grid line; and finally, carrying out loop iteration processing so as to improve the measurement precision of the plumb line coordinatograph. Namely, the scheme can simply and efficiently calibrate the magnetic induction plumb line coordinatograph to improve the measurement precision of the magnetic induc