Monitoring usage or status of cart retrievers
US-9403548-B2 · Aug 2, 2016 · US
Navigation systems and methods for wheeled objects
US9630639B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9630639-B2 |
| Application number | US-201414299957-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 9, 2014 |
| Priority date | Mar 18, 2005 |
| Publication date | Apr 25, 2017 |
| Grant date | Apr 25, 2017 |
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Abstract
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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.
First claim
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What is claimed is: 1. A system for training a non-motorized retail cart, the system comprising: a portable training object positioned on a first non-motorized cart, the portable training object comprising a dead reckoning navigation system that is configured to determine, record, and store coordinate data related to the shape and extent of a confinement area of a retail environment, the dead reckoning navigation system comprising: a magnetic sensor configured to measure at least…
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Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Operations & Transport · mapped topic
Physics · mapped topic
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- What does patent US9630639B2 cover?
- 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 m…
- Who is the assignee on this patent?
- Gatekeeper Systems Inc
- What technology area does this patent fall under?
- Primary CPC classification B62B3/1404. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Apr 25 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).