Method and system for positional finding using RF, continuous and/or combined movement
US8423042B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2006 |
| Grant date | Apr 16, 2013 |
| Priority date | — |
| Expiry date | Jan 3, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/74
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for determining location of an object, the system including a Master Unit having an RF transceiver and adapted to measure distance to the Tag. The Master Unit has a first input from which it can derive its current position. The Master Unit transmits instructions to the Tag for movement in a predetermined direction. The Master Unit measures distance to the Tag after the movement in the predetermined direction. The Master Unit determines position of the Tag after the movement in the predetermined direction. The Tag can include a compass, a pedometer, and optionally an accelerometer, a solid-state gyroscope, an altimeter inputs for determining its current position by the Master Unit. The Master can optionally include a compass as well as a pedometer, an altimeter, an accelerometer, a solid-state gyroscope, an altimeter and a GPS receiver. Also, the Tag movement does not have to follow the Master's direction. However, the Master Unit still will be able to determine the Tag location(s). Also, the roles of the Master Unit and Tag can be reversed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.