A position calibration method, system and automatic monitoring method

Abstract

The present invention belongs to the field of the control technology and discloses a position calibration method and system and an automatic monitoring method. The monitoring method comprises the following steps: arranging a position encoder to move with a control object, and feeding back the real position information in real time; arranging a calibration section, wherein a calibration value is located in the calibration section; arranging a state detection section, wherein the calibration value is located in the state detection section which is located in the calibration section; in the condition that an identification switch feeds back the calibration value, when the real position information fed back by the position encoder is located in the calibration section, allowing the controller to execute the position calibration; or else, allowing the controller not to execute the position calibration; in the condition that the identification switch feeds back the calibration value, when the real position information fed back by the position encoder is located out of the calibration section, allowing the position controller to execute position calibration detection operation, and triggering the maintenance alarm; and or else, allowing the position controller not to execute position calibration detection operation. The monitoring method of an automatic calibration function is realized to improve the reliability and the safety of the position control and reduce the investment cost of the maintenance of devices.

Description

technical field [0001] The invention relates to the field of control technology, in particular to a position calibration method, system and automatic monitoring method. Background technique [0002] Position control is an important control method for automated production lines, generally used for precise positioning, and the calculation of the actual position is usually done using an encoder. [0003] When the object is moving, there will be certain errors in mechanical transmission, such as slight slipping errors or errors in gear meshing. After a long period of accumulation, the actual position calculation will be inaccurate. In order to solve this problem, a calibration function is often added when calculating the actual position, that is, a position identification switch is installed on the running track of the control object, and the actual position of the switch on the running track is measured at the same time, as a calibration value, when the control object runs Whe...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a position calibration method, system and automatic monitoring method, which solves the technical problems that the calibration function itself has a reliability risk in the prior art, and at the same time, it will cover up the deterioration trend of the equipment and make maintenance difficult

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