Title:
ENVIRONMENTAL PARAMETER DETERMINATION DEVICE AND METHOD USING ACOUSTICS
Document Type and Number:
WIPO Patent Application WO/2013/179202
Kind Code:
A3
Abstract:
Properties of the air such as temperature, pressure, humidity and air flow can modify the propagation pathway of an acoustic signal. By making acoustic measurements of a known acoustic path it is possible to estimate at least one of the temperature, the pressure, the humidity and the air flow using perturbations present in the measured signal. Moreover, by combining data from several acoustic pathways topographical reconstruction of profiles of at least one of the temperature, the pressure, the humidity and air flow can be obtained. Profiling these data over an extended volume such as an office or green house is particularly important for local control.
Inventors:
SIMONS PAUL RICHARD (NL)
PITCHERS STEPHEN MICHAEL (NL)
CHIAU CHOO CHIAP (NL)
AARTS RONALDUS MARIA (NL)
LAMB WILLIAM JOHN (NL)
OUWELTJES OKKE (NL)
PITCHERS STEPHEN MICHAEL (NL)
CHIAU CHOO CHIAP (NL)
AARTS RONALDUS MARIA (NL)
LAMB WILLIAM JOHN (NL)
OUWELTJES OKKE (NL)
Application Number:
PCT/IB2013/054361
Publication Date:
March 13, 2014
Filing Date:
May 27, 2013
Export Citation:
Assignee:
KONINKL PHILIPS NV (NL)
International Classes:
G01N29/02; F24F11/00; G01K11/22; G01N29/46; G01W1/02
Foreign References:
| US20070256491A1 | 2007-11-08 | |||
| JP2008032442A | 2008-02-14 | |||
| US6681635B1 | 2004-01-27 |
Other References:
"ACOUSTICS - ATTENUATION OF SOUND DURING PROPAGATION OUTDOORS - PART 1: CALCULATION OF THE ABSORPTION OF SOUND BY THE ATMOSPHERE. ACOUSTIQUE - ATTENUATION DU SON LORS DE SA PROPAGATION A L'AIR LIBRE - PARTIE 1: CALCUL DE L'ABSORPTION ATMOSPHERIQUE", INTERNATIONAL STANDARD - ISO, ZUERICH, CH, vol. 9613-1, 1 June 1993 (1993-06-01), pages I - III,01, XP000669451
Attorney, Agent or Firm:
VAN EEUWIJK, Alexander Henricus Walterus et al. (AE Eindhoven, NL)
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