| 摘要 |
PROBLEM TO BE SOLVED: To provide a bloody-egg inspection mechanism which is mounted on an automatic egg sorting and packaging system, by which a bloody egg can be inspected with high accuracy irrespective of an eggshell color and which can be mounted in a plurality of rows of conveyance processes in the sorting and packaging system. SOLUTION: The bloody-egg inspection mechanism 1 is constituted of an automatic optical- path changeover part 20 in which eggs E1 arranged transversely in a group of eggs conveyed in a plurality of rows so as to constitute one row are irradiated sequentially with beams of white light 11; projection optical fibers 3b which guide the beams of white light 11; light receiving optical fibers 6 which receive beams of transmitted light 12 from the eggs so as to be transmitted to a spectral element 7; a light detecting element 8 which converts a light signal by wavelength so as to output an analog spectrum; an analog/digital converter 9 which converts the analog spectrum into a digital spectrum; a computing mechanism 10; and the like. A spectral spectrum of each egg is measured so as to create a quadratic differential curve, and eggshell colors are sorted. In each sorting operation, a spectral spectrum of an egg to be inspected is compared with spectral spectrum of a normal egg, similarities of patterns are classified by a correlation analytical method or the like, and the egg is identified whether bloody or not. Thereby, irrespective of the eggshell color, the bloody egg can be sorted out with high accuracy. COPYRIGHT: (C)2003,JPO
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