Design method based on machine vision inspection centring control device

Abstract

The invention relates to a design method based on a machine vision inspection centring control device; a line scanning sensor senses wide long banding surfaces, and the result is output to an image acquisition module; LED linear light source generates convergent linear light which is irradiated on the object to be inspected, and surface condition is sent to the line scanning sensor; the image acquisition module carries out bottom layer treatment conversion on input signals of the line scanning sensor; a PCIe bus image transmission module provides point-to-point independent bandwidth bus channels for two routes of data of the image acquisition module; a machine vision margin automatically positioning software carries out positioning tracking on belting margin and calculates belt material centre deviation value; a digital controller determines parameters of the digital controller according to signals introduced by an interface module, and control signals are output to the interface module; the interface module inputs the signals of a system to the digital controller, and the result is output to a hydraulic servo system; the hydraulic servo system adjusts load moving speed according to the control signals output by the interface module; and a power unit supplies stressor.

Description

technical field [0001] The invention relates to a design method of a centering control device based on machine vision detection and belongs to the technical field of vision measurement and control. Background technique [0002] On the running production line, the strip should be aligned with the center line of the unit (or the set position) within a certain lateral tolerance range, otherwise it will cause damage to the equipment, stop production due to broken belt, and affect product quality. In order to ensure the safe operation of the strip on the production line, the centering control of the strip is required. The main components of the strip automatic centering control device include: detection system, microprocessor control device, driver and hydraulic control (or mechanical transmission) system . At present, there are several forms of centering and deviation correction: photoelectric, inductive, capacitive, and CCD. The detection device using CCD mostly adopts the way...

AI Technical Summary

Problems solved by technology

This detection method can meet the alignment needs of production, but its structure is complex, the failure rate is high, and the detection position needs to be manually adjusted according to the strip width, and positioning and driving devices need to be configured

In the case of continuous production, the production efficiency is affected. The main reason is that the detection device has a small visual range and the automatic positioning of the edge of the strip is not realized.

At the same time, the processing platform of this type of device is mainly based on hardware, which lacks flexibility and cannot realize complex intelligent detection and control algorithms.

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