Vending machine and vending method and vending system therefor
US11501594B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 23, 2019 |
| Grant date | Nov 15, 2022 |
| Priority date | — |
| Expiry date | May 23, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G19/42
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A vending machine (100) and a vending method and vending system (1000) therefor, the vending machine (100) comprising a machine body (10), a door body (20), and at least one layer of shelves (30) and a weighing device (40) that are installed inside the machine body (10). The vending method comprises: collecting the weight of products on a shelf before and after vending (S1); calculating the difference of the change between the weight of the products on the shelf before vending and the weight of the products on the shelf after vending (S2); and if the difference of the change is less than a first weight change threshold, issuing an alarm prompt (S3), wherein the first weight change threshold is less than or equal to zero. Using the present invention may promptly determine the misplacement and replacement of the products without relying on an RFID tag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.