Minibar for hotel bedroom has electronic sensors which detect removal of items and automatically add charges to guest's bill

摘要

The minibar (1) has an upper room-temperature section with a shelf (17) with recesses (18) for objects (A). The refrigerated compartment (3) has a number of shelves (5) in which there are many recesses (6) for objects (A). The door also carries two shelves (15) with recesses (16). Each recess (6, 16, 18) has a capacitive detector linked to a central computer (8). The computer registers the removal of any object and adds the cost to the gust's bill.