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1. WO2006036482 - DETERMINING THE LOCATION OF AN ACOUSTIC EVENT

Publication Number WO/2006/036482
Publication Date 06.04.2006
International Application No. PCT/US2005/031823
International Filing Date 08.09.2005
Chapter 2 Demand Filed 02.02.2007
IPC
H04B 1/59 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
59Responders; Transponders
CPC
G01S 5/22
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
5Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
18using ultrasonic, sonic, or infrasonic waves
22Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements
Applicants
  • MCGINN-HARVEY HOLDINGS, LLC [US]/[US] (AllExceptUS)
Inventors
  • HARVEY, Edward, P., Jr.
  • MCGINN, Jack
Agents
  • HARPER, M. Bruce
Priority Data
11/221,54107.09.2005US
60/607,89108.09.2004US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DETERMINING THE LOCATION OF AN ACOUSTIC EVENT
(FR) SYSTEME ET PROCEDE DE DETERMINATION DE L'EMPLACEMENT D'UN EVENEMENT ACOUSTIQUE
Abstract
(EN)
A system and method is provided for determining the three dimensional location of an acoustic event (30) using a system of five or more sound sensing elements (100). The sensing elements are positioned at substantially the same elevation and in spatially distributed locations with respect to the acoustic event. The sensing elements generate notification signals indicating occurrence of the acoustic event. A central processor (20) receives the notification signals, associates the locations of each of the sensing elements with the time at which each sensing element sensed the sound, determines the speed of sound for the medium, and calculates a three dimensional location for the acoustic event using a linear error minimization algorithm. A system of six or more sensing elements enables the processor further to discriminate between near simultaneous acoustic events.
(FR)
L'invention porte sur un système et un procédé permettant de déterminer l'emplacement en 3D d'un événement acoustique à l'aide d'un système d'au moins cinq capteurs. Les capteurs, placés sensiblement au même niveau et répartis spatialement par rapport à l'événement acoustique, produisent des signaux de notification indiquant la présence de l'événement acoustique. Un processeur central: reçoit les signaux de notification; associe les emplacements de chacun des capteurs avec le moment où ils détectent le son; détermine la vitesse du son dans le milieu; et calcule en 3D l'emplacement de l'événement acoustique à l'aide d'un algorithme de réduction d'erreur linéaire. Un système de six capteurs ou plus permet de plus de distinguer entre des événements acoustiques quasi simultanés.
Also published as
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