System for indoor and outdoor position measurement
US10942241B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2017 |
| Grant date | Mar 9, 2021 |
| Priority date | — |
| Expiry date | Sep 1, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S5/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for measuring the position of one or more object in an area of interest. The system has a primary beacon located at a first fixed position in or near the area of interest which generates a time referenced primary signal, two or more secondary beacons located at different fixed positions in or near the area of interest which generate time referenced secondary signals and one or more portable tag, the portable tag being attachable to the object. The portable tag has a portable tag circuit for calculating the distance of the portable tag to the primary and secondary beacons by means of a time of flight calculation which uses, the known position of the primary and secondary beacons, time referenced signals and delay information associated with the time referenced signals, such that the portable tag calculates its own position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.