Navigation systems and methods for wheeled objects
US9630639B2 · kind B2 · utility
25Cited by
141References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 9, 2014 |
| Grant date | Apr 25, 2017 |
| Priority date | — |
| Expiry date | Jan 16, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49826
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A navigation system uses a dead reckoning method to estimate an object's present position relative to one or more prior positions. In some embodiments, the dead reckoning method determines a change in position from the object's heading and speed during an elapsed time interval. In embodiments suitable for use with wheeled objects, the dead reckoning method determines the change in position by measuring the heading and the amount of wheel rotation. Some or all of the components of the navigation system may be disposed within a wheel, such as a wheel of a shopping cart.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.