Execution mechanism visual calibration method
An actuator and calibration method technology, applied in the field of visual calibration, can solve the problems of long manual calibration time, heavy workload, low precision, etc., and achieve the effect of speeding up visual calibration time, improving calibration accuracy and consistency
Active Publication Date: 2017-03-22
WEIFANG LOKOMO PRECISION IND
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[0005] In view of the above problems, the purpose of the present invention is to provide a visual calibration m
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[0022] In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that these embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.
[0023] In order to describe the vision calibration method of the actuator in the embodiment of the present invention in detail, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0024] figure 1 The flowchart of the visual calibration method of the actuator according to the embodiment of the present invention is shown.
[0025] Such as figure 1 As shown, in the implementation mechanism vision calibration method of this embodiment, the implementation mechanism includes a work plat...
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An execution mechanism visual calibration method provided by the present invention comprises the steps of starting a test calibration program, using an execution unit to pick up a calibration film in a calibration tooling and returning to an imaging range of a component camera; enabling the execution unit to move along an X-axis direction of the execution mechanism, calibrating the included angle of the component camera and the X-axis direction of the execution mechanism and the proportion coefficient of the component camera; using the execution unit to drive the calibration film to rotate, and determining the rotation center data of the execution unit; placing the calibration film on a working platform via the execution unit, enabling a marking camera to move along the X-axis direction of the execution mechanism, and calibrating the proportion coefficient of the marking camera; determining the relative position data between the execution unit and the marking camera; comparing the difference value of the calibration data and the theoretical data, and ending a calibration process if the difference value accords with requirements; otherwise, circularly executing the above steps. By utilizing the above execution mechanism visual calibration method, the human intervention during the calibration process can be reduced, and the visual calibration precision of the execution mechanism is improved.
Description
technical field [0001] The present invention relates to the technical field of vision calibration, and more specifically, to a vision calibration method of an actuator. Background technique [0002] With the increasing application of machine vision technology, vision projects have become intricate and complex, and the precision requirements for vision systems are also getting higher and higher. High-precision system calibration is the premise and basis for machine vision systems to perform precise measurement and detection. [0003] In the application process of the XY platform of the universal actuator, it is usually necessary to visually calibrate multiple parameters of the actuator, such as the angle between the vision unit and the motion axis, the visual scale factor, the position of the rotation center of the actuator, etc., these Calibration is fundamental to realize automatic operation of equipment. [0004] At present, manual calibration is mainly used for the cali...
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Login to View More IPC IPC(8): G01B11/00G01B11/26
CPCG01B11/00G01B11/26
Inventor 彭建军
Owner WEIFANG LOKOMO PRECISION IND