Patent ID: 11900349
Assignee: BIZERBA SE & CO. KG
Field: Control (Instruments)
Classification: CPC G  A | IPC G

Claim 0:
1. A method for operating a sales device for goods, the method comprising:
detecting, using a shelf with automatic removal monitoring, a removed item and determining item data of the removed item;
reading out a customer identification number of a customer in a vicinity of the shelf from which the removed item has been removed;
receiving, by a controller, the item data of the removed item and the customer identification number;
adding, with the controller, the item data of the removed item and the customer identification number to a list of items intended for payment; and
detecting, with a detector, items for which a payment transaction is to be executed, the detector comprising at least one sensor and an evaluator and for detecting articles, at least the data of the sensor and the list of items intended for payment are being made available to the evaluator as input variables,
wherein the at least one shelf with automatic removal monitoring for detecting the removed item performs the following:
receiving a signal from at least two weighing cells arranged in corners of a rigid body forming a display area with at least two product areas, wherein the signals correspond to weight forces in an area of the corners of the rigid body;
determining, with an evaluator, coordinates of a center of gravity and a total weight force from the received signals;
receiving a signal corresponding to a new weight force of at least one of the weighing cells, and determining, with the evaluator, coordinates of the new center of gravity from the data currently received by the weighing cells;
determining a product area, of the product areas, and a weight of the items removed from the determined product area; and
determining the item data of the item removed from the shelf on the basis of the determined product area, and determining the number of items removed on the basis of the weight removed from the product area and a specific weight of the item.