Patent ID: 6330488
Filing Date: 2001-12-11
Classification: G05B,Y02P,Y10T

Abstract:
A method for controlling a machining process of a workpiece comprising the steps of:measuring amounts of machining of the workpiece by a plurality of sensors located at different positions on the workpiece, said sensors providing detection signals which represent respective measured amounts;removing a detection signal when the detection signal has an abnormal value which is extremely different in comparison with values of the other detection signals by using a smoothing method; andcontrolling the machining of the workpiece depending upon the remaining detection signals from said sensors, wherein said removing step includes a step of calculating each rate of change between values of the detection signals of adjacent two sensors with respect to a distance between said adjacent two sensors, and a step of determining removal of the detection signal of each sensor depending upon a difference in the rates of change of said each sensor with respect to two sensors adjacent to said each sensor.