| 摘要 |
<p>An inspection method of a product 1 in a packaging machine, in which the product can comprise a group of cigarettes or a group of packets of cigarettes and is wrapped at least partially in, or on which is positioned, at least one outer wrapper material 2, comprises the following steps: processing an acquired image of a face la of the product 1 to identify a reference axis B identified for said outer wrapper material 2 in the face la, which indicates an arrangement of the outer wrapper material in the face la; comparing the identified reference axis B with a corresponding ideal reference axis A identified in the face la of a product 1 devoid of defects, to evaluate if the outer wrapper material has been wrapped/positioned correctly in the made product; obtaining a value that indicates a shift S of the identified reference axis B with respect to the ideal reference axis A, wherein the shift S is equal to 0 if the identified reference axis B and the ideal reference axis A coincides and the shift S is positive or negative if respectively the shift S is greater than 0 or less than 0; assigning to the product a quality indicator selected from a plurality of quality indicators according to the shift value S, this plurality of quality indicators corresponding for example to: defective product because of positive excess, defective product because of negative excess, product devoid of defects but of dangerous quality because of positive excess, product devoid of defects but of dangerous quality because of negative excess, or product devoid of defects and of good quality.</p> |
