Over-constraint judgment method applied to multi-point supporting system

The invention discloses an over-constraint judgment method applied to a multi-point supporting system. The over-constraint judgment method comprises the following steps that supporting point signals on planes of multiple supporting points are connected to corresponding channels for measurement; the phase of one point is compared with the phase of other supporting points; a balance equation of theelectromagnetic force is established; the over-constraint point is judged; and the current of other supporting points is adjusted so as to provide conditions for the implementation of the magnetic damping. The adjusting method comprises the following steps that a displacement signal is measured; the support force increment of each point is calculated; the consistency of the point A and the increment direction of other points is judged; when the point A is consistent with the increment direction of other points, the new increment is reserved, and the loop variables are added to 1; when the point A is inconsistent with