Method and apparatus for cart navigation
US10429196B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2017 |
| Grant date | Oct 1, 2019 |
| Priority date | — |
| Expiry date | Sep 13, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P15/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus and method are disclosed for cart navigation using a portable device that is conveyed by the cart, but may be tethered or untethered and wherein mobility of the portable device may be constrained or unconstrained within the cart. The cart may be any apparatus propelled by on foot motion of a user. The portable device may have an integrated sensor assembly integrated with at least one sensor outputting data representing motion of the portable device. From the motion sensor data, it may be determined if the portable device is in a cart motion mode, if the cart is moving and an effective motion frequency for the portable device. Further, the motion sensor data may be reconstructed, a heading misalignment angle calculated and steps taken by the user detected. From this information, dead reckoning for the cart may be performed so that a navigation solution may be provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.