ULB location system for rescuing avalanche victims

US7612717B2 · kind B2 · utility

Assignee

• COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR

Inventors

• Norbert Daniele · Meylan, FR
• Benoit Denis · Grenoble, FR

Key dates

• Filing date: Jun 7, 2005
• Grant date: Nov 3, 2009
• Expiry date: Oct 30, 2025

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A63B29/021
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for locating a UWB transmitter, without a previously-set reference, using at least one first set of at least three UWB searching transceivers, including first, second, and third transceivers. The method a) synchronizes the three UWB searching transceivers, arranged at three different points, and estimates the relative position of these three points; b) receives, by the three transceivers, signals transmitted by the transmitter to be located; and c) calculates the relative position, with respect to the three searching transceivers, of the transmitter to be located according to the time of travel of the signals, transmitted by the transmitter to be located, to the three searching transceivers.