Object cluster detection and estimation
US8718923B2 · kind B2 · utility
14Cited by
66References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 2013 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | May 28, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49826
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle tracking system includes a wheel unit containing RF communication circuitry. The wheel units communicate with fixed nodes of a monitoring system. In some embodiments, the wheel units are placed on shopping carts and are used to track the shopping carts in a vicinity of a store. The system may implement a variety of tracking-relating features, including detecting unauthorized store exit events, estimating the number of shopping carts that are clustered together, and inhibiting shopping cart theft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.