| 摘要 |
<p>This invention has an object to provide a POS system, a weight checker, and a POS-system control method capable of improving the work efficiency regarding the item verification. The POS system includes: input means (40) for receiving an input of an order; memory means (31) for storing item information containing an individual theoretical weight of each item; calculating means (34a) for calculating, based on input information containing item types and item quantities of ordered items and on the item information, a theoretical total weight of the ordered items; weight measuring means (81) for measuring an actual total weight of the ordered items, which are put in a bag; judging means (74a) for comparing the theoretical total weight and the actual total weight, and when there is a weight difference therebetween, identifying a side item and/or included item close in weight to the weight difference from among the ordered items; and output means (73a) for outputting the identified side item and/or included item as an item candidate corresponding to the weight difference.</p> |
