An embedded machine vision led light source controller

Abstract

The invention discloses an embedded machine vision LED (light-emitting diode) light source controller. The controller comprises an embedded control module, a data communication module, an external control signal trigger module and a LED light source driving output module. The embedded control module is used for receiving upper computer control signals sent by the data communication module or lower computer control signals sent by the external control signal trigger module, the LED light source driving output module is controlled to output a driving voltage required by a LED light source. Besides, the controller further comprises a power supply module used for providing working voltage to the embedded control module and the LED light source driving output module. The embedded machine vision LED light source controller is applied to a machine vision system in an industrial field, and upper computer control and external trigger control can be selected for controlling on-off and luminance of the LED light source to meet various actual demands. The controller is capable of quickly controlling on-off and luminance of multipath light source channels in real-time as needed and is diversified in control methods.

Description

technical field [0001] The invention belongs to the field of LED light source controllers, in particular to an embedded LED light source controller applied to machine vision systems on industrial sites. Background technique [0002] Machine vision is a system that uses computers to simulate human visual functions, extracts information from images of objective things, processes, analyzes and understands them, and is finally applied to the detection, identification, measurement and control of actual objects. [0003] A typical machine vision system generally includes light source, light source controller, lens, camera, image acquisition card, image processing and decision-making module. The processing results have an impact, but the performance of the light source controller is the most important factor affecting the image processing results in the machine vision system. It not only directly affects the quality of the collected images, but also further affects the image proces...

AI Technical Summary

Problems solved by technology

[0003] A typical machine vision system generally includes light source, light source controller, lens, camera, image acquisition card, image processing and decision-making module. The processing results have an impact, but the performance of the light source controller is the most important factor affecting the image processing results in the machine vision system. It not only directly affects the quality of the collected images, but also further affects the image processing results and Operational quality of the entire machine vision system

[0004] The light source controller in the prior art has the problems of being unable to control the light source quickly and on-demand in real time and with a single control method, which cannot meet the high-speed and high-precision requirements of the machine for the performance of the vision system.

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