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Machine vision light source system capable of automatically switching light source forms and dimming method

A technology of machine vision and light source system, which is applied in the direction of photo interpretation and camera equipment, can solve the problems of insufficient light source and frequent replacement of light source, and achieve the effect of improving efficiency and increasing the degree of automation

Pending Publication Date: 2021-04-16
浙江泰瑞重型机械有限公司
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Problems solved by technology

[0003] The purpose of the present invention is to address the deficiencies in the prior art, provide a machine vision light source device and method that can adaptively switch the light source form according to different detection workpieces, and solve the problem that the light source is not universal enough and needs to be frequently replaced when detecting multiple types of workpieces

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  • Machine vision light source system capable of automatically switching light source forms and dimming method
  • Machine vision light source system capable of automatically switching light source forms and dimming method
  • Machine vision light source system capable of automatically switching light source forms and dimming method

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Embodiment

[0029] Example: detection of solder joints on the surface of the battery. The solder joints are located on the metal sheet. It is necessary to photograph and locate the solder joints to determine whether the solder joints are welded correctly. The steps of automatically switching the light source form: the battery workpiece is transported to the bottom of the light source device through the conveyor belt, the industrial camera 2 acquires images under the default light source, and transmits the pictures to the industrial computer 1, and the image processing module in the industrial computer 1 performs image preprocessing first, and then Use image recognition to perform feature extraction and classification of the obtained images. The classification labels of the obtained battery workpieces are strong reflection, smooth surface, and insufficient brightness. The type signal of the battery workpiece is imported into the decision maker for classification decisions, and high-angle ann...

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Abstract

The invention discloses a machine vision light source system capable of automatically switching light source forms and a dimming method, the light source system comprises an industrial camera, a detection workpiece, a switchable light source and an industrial personal computer, and the industrial camera is controlled by the industrial personal computer and transmits image information of the detection workpiece to the industrial personal computer; the detection workpiece is arranged on the transparent conveyor belt; the switchable light source can be directly controlled by an industrial personal computer, different light source combinations and brightness can be switched, and the switchable light source comprises four backlight light sources, namely a low-angle strip-shaped light source vertical irradiation annular light source and a high-angle diffuse reflection annular light source. The industrial personal computer can make decisions by detecting workpiece images, and then controls the switchable light source to select the light source combination meeting the illumination requirement. The light source system and the dimming method are suitable for product detection of multiple varieties and small-batch production modes, light source adjustment can be conducted according to different product types, and automatic switching of different light source forms such as high-angle light sources, low-angle light sources, backlight light sources, common light sources and diffuse reflection light sources is achieved.

Description

technical field [0001] The invention relates to a visual light source device and method, in particular to a light source system and a dimming method capable of adaptively switching machine vision lighting forms. Background technique [0002] The light source system is an important part that directly affects the image quality of machine vision. A suitable light source can enable industrial cameras to obtain pictures that are more suitable for image processing, which in turn can improve image recognition and detection efficiency and simplify system software complexity. However, the current enterprise competition is increasingly emphasizing the competition based on customer needs. Therefore, the production mode of enterprises is gradually shifting to the multi-variety and small-batch production mode based on flexible and automated production. The current light source technology is often only suitable for single product detection, and lacks technology that can be adjusted accord...

Claims

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Application Information

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IPC IPC(8): G01C11/02G01C11/04
Inventor 周宏伟刘志文丁玉梅陆晨风沈海波余露蓉邵水铭曾剑琴
Owner 浙江泰瑞重型机械有限公司
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