Expandable, decentralized position tracking systems and methods
US10444323B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2017 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Jul 10, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/765
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods for position tracking include at least three spatially separated radio-frequency (RF) sources of radio signals. Each RF source is disposed in an area at a location known to that RF source. Each RF source includes an RF transmitter configured to transmit radio signals that carry a unique identifier and the known location of that RF source. The position tracking system and method include at least one tag. Each tag is coupled to a different mobile object and includes a radio module with an RF receiver for receiving the radio signals transmitted by the at least three spatially separated RF sources. Each tag further includes memory and a processor that executes executable code stored in the memory to compute a range from that tag to each of the at least three RF sources and to compute a position of that tag based on at least three computed ranges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.