Control system, and control method and computer readable storage medium

Abstract

A control system, a method, and a computer readable storage medium reduce oscillations in trace control and shorten the tact time in measurement. A PLC system (SYS) includes a displacement sensor (7),drives (30, 40), and a PLC (1). In the PLC system (SYS), the trace control unit (162) calculates a target position at which a distance between the displacement sensor (7) and the object (A) is constant based on measurement information (1D information) from which measurement noise (noise information) has been removed by the filter (162c) and positional information from the drives (30, 40).

Description

technical field [0001] The present invention relates to a control system of a control application program for measuring the shape of an object, a control method thereof, and a computer-readable storage medium. Background technique [0002] Many machines and equipment used at the production site are controlled by a control device such as a programmable logic controller (Programmable Logic Controller, hereinafter also referred to as PLC). There is known a control system that uses such a control device to control a measuring device to measure the shape of an object. For example, Patent Document 1 discloses an apparatus system that uses profiling control to control the movement of a profiling head equipped with a shape displacement sensor so as to profil the shape of a model surface based on signals from the shape displacement sensor. [0003] Patent Document 1: Japanese Patent Application Laid-Open No. 07-314295 [0004] However, in the device system disclosed in Patent Docum...

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Problems solved by technology

[0004] However, in the device system disclosed in Patent Document 1, when measurement noise is superimposed on the signal from the shape displacement sensor (measuring device), the movement of the profiling head is controlled based on the signal on which the measurement noise is superimposed. , so profiling control is affected by measurement noise and becomes vibratory control

In the conventional device system, in order to remove the measurement noise from the signal of the sensor for shape displacement (measuring device), a filter is installed in the controller of the measuring device, but the signal has a phase difference due to the processing in the filter. Delay, if the shape is measured based on a phase-delayed signal, there is a problem of producing measurement errors

Furthermore, in the conventional device system, the measurement tact time (tact time) becomes long due to the processing in the filter, so it is difficult to suppress the vibration in the profiling control and shorten the measurement tact time

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