Method and system for finding handling trolleys
US11709057B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 13, 2017 |
| Grant date | Jul 25, 2023 |
| Priority date | — |
| Expiry date | Nov 7, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D1/028
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
System for finding at least one mobile trolley in a locale, the system including at least one communication beacon which has a range covering the locale and which is connected to a computer control unit, and at least one electronic module mounted on the trolley and including a transmission device arranged to transmit position data to the communication beacon, and an inertial motion detection hub that includes a device for detecting linear motion along axes of a detection reference system and a device for detecting angular motion about the axes of the detection reference system and that is arranged to provide position data on the basis of linear motion measurement data and angular motion measurement data, the module being mounted on an element of the trolley such that any movement of the trolley within the locale causes angular movement of the element, the system being arranged to detect when the trolley is stopped when the angular motion measurement data correspond to zero angular motion at one measurement instant and being arranged to set to zero speeds calculated on the basis of the linear motion measurement data corresponding to the same measurement instant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.