Detecting the position of articles in a blister pack

Task
In a relatively large blister pack, there are 64 articles in different colors. These articles must be checked in the blister for correct positioning before further processing.
Solution
The dimensions of the blister require a relatively large distance of the Vision Sensors in order to be able to detect all articles in the image field. Additional Power lighting supports the camera with its light, which is evenly distributed over the entire blister. The articles come in various colors, therefore a color is selected for the lighting that makes all articles appear in strong contrast to the blister. Using the Vision Sensor, each of the 64 articles is individually equipped with a query checking the position required for further processing. Incorrectly positioned articles are reported to the PLC.

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