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MACHINE VISION UNIT |
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1. PURPOSE OF USE |
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This automatic inspection machine is designed for sorting tablets in real
time by shape and shade of coloring with a digital photo method with the following processing of
images. The suitable and rejected tablets are divided into two streams for the further participation
in workflow. There is a possibility of remote control via local area network.
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2. TECHNICAL CHARACTERISTICS |
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Tablet shape and type
Speed of processing Engine power Power supply Local area network interface Case material |
Lenticular, glossy
Up to 90000 tablets per hour 0,25 kilovolt-ampere 220 V, 50/60 Hz CAN Stainless steel |
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3. REMARKS |
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The equipment for creating negative pressure with suction force up to 10 kPa
and air consumption up to 76 cubic meters per hour is used in this automatic tablet video inspection system.
The video information analysis system includes two computing modules, receiving images from video cameras and processing them at speed of 25 frames per second. Each computing module is designed on the basis of Texas Instruments microprocessor TMS320VC5509A. In the below figures is shown how automatic tablet video inspection system detects various parameters of rejects. The result of window search by means of tablet video inspection machine in which the following search of an image of a tablet will be carried out is shown in figure 1. |
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Figure 1 – the result of the coordinate calculation of a search window of an image of a tablet by means of
tablet video inspection machine.
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The result of a search by means of tablet video inspection machine for the contour of
an image of a tablet and calculation of parameters which will be used for further definition whether a tablet
is defective or not is shown in figure 2.
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Figure 2 – the result of a search by means of tablet video inspection machine for the contour of an image of a
tablet and calculation of its parameters.
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One of the stages of a search by means of automatic tablet video inspection system for
the maximum color differences on a surface of an image of a tablet is shown in figure 3.
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Figure 3 – the result of a search for the maximum color differences on a surface of an image of a tablet
by means of automatic tablet video inspection machine.
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The rejected and not rejected tablets sorted with the machine vision
unit are shown in figure 4.
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Figure 4 – the result of automatic tablet sorting by means of tablet video inspection machine.
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