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Synchronization method of online vision positioning system

A technology for visual positioning and locating objects, applied in the direction of using feedback control, etc., to achieve the effects of wide application in the market, shortening the rotation angle of the spindle, and improving the accuracy

Active Publication Date: 2017-10-03
苏州西斯派克检测科技有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

Difficult to integrate positioning system into existing small labeling machines

Method used

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  • Synchronization method of online vision positioning system
  • Synchronization method of online vision positioning system
  • Synchronization method of online vision positioning system

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Experimental program
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Embodiment Construction

[0024] The online visual positioning system is applied to the labeling machine, and the function of positioning and straightening can be completed by cooperating with the servo motor of the labeling machine. The realization of the system is divided into three steps. The first step is to capture the 360-degree image. The second step is to process the image signal to find the characteristic position. The third step is to control the rotation of the servo motor to drive the container to the desired position through the result of the search. For occasions with relatively high precision requirements, a fine positioning module can be added to capture images again and control the positioning of the servo system.

[0025] Such as figure 1 Shown is a schematic diagram of the vision positioning system applied to a rotary labeling machine. First the containers enter the labeling machine via the infeed star wheel on the left. After entering the labeling machine, the tray is pressed and ...

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Abstract

The invention discloses a synchronization method of an online vision positioning system. The synchronization method comprises the steps of triggering a camera to photograph by a camera trigger signal output from the vision positioning system, transmitting the camera trigger signal to a servo control system so as to initiate interruption of the servo control system, recording a real-time position of a servo motor corresponding to a camera trigger moment through communicating the servo control system with the servo motor by means of a real-time bus, and ensuring that an absolute position of the servo motor is recorded by the servo control system at any moment when the camera photographs a picture, thereby realizing true synchronization between a servo controller and the vision positioning system. By adopting the synchronization method, a labeling machine main shaft rotating angle required for 360-degree imaging is reduced, thus the positioning system requires smaller installation space, the control errors of camera mechanical installation and the servo system are eliminated, the prepositioning precision is improved, the online vision positioning system is more compact, and the market application of the online vision positioning system is wider.

Description

technical field [0001] The invention relates to an automatic production line, in particular to a synchronization method for an online visual positioning system. Background technique [0002] Manufacturers of beverages and beverages often launch beautifully designed and unique containers when producing products, in conjunction with marketing promotion and brand display, so as to meet the individual needs of end customers. For example, embossing, brand marks, windows and other features appear on more and more beer, wine, liquor and beverage containers on the market. In order to improve the aesthetics of the product, the label needs to be attached to a specific position on the container, such as directly under the relief or in a designated window. In order to meet this demand, a vision-based positioning and alignment system has appeared in the labeling machine. Compared with the traditional mechanical positioning system, it has the characteristics of high efficiency and good ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D3/12
CPCG05D3/12
Inventor 张翔
Owner 苏州西斯派克检测科技有限公司
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