Title:
POSITION ESTIMATION DEVICE, AIR CONDITIONING SYSTEM, POSITION ESTIMATION METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2019/216027
Kind Code:
A1
Abstract:
A position estimation device according to the present invention is provided with: an arrival time estimation unit for acquiring a waveform signal of a sound detected by a sensor, estimating a detection start time or a detection end time of the sound on the basis of the waveform signal, and estimating a time of arrival of the sound at the sensor on the basis of the detection start time or the detection end time; and a position estimation unit for estimating the output position of the sound on the basis of a time difference in times of arrival of the sound at a plurality of sensors, estimated by the arrival time estimation unit.
Inventors:
MIZUNO HISAO (JP)
KONDO SEIJI (JP)
NISHIKAWA NAOKI (JP)
MARUYAMA MASANORI (JP)
SAKURAI TAKAO (JP)
SHIMIZU KENJI (JP)
IWATA HISAO (JP)
ONOGAWA EI (JP)
KONDO SEIJI (JP)
NISHIKAWA NAOKI (JP)
MARUYAMA MASANORI (JP)
SAKURAI TAKAO (JP)
SHIMIZU KENJI (JP)
IWATA HISAO (JP)
ONOGAWA EI (JP)
Application Number:
PCT/JP2019/011128
Publication Date:
November 14, 2019
Filing Date:
March 18, 2019
Export Citation:
Assignee:
MITSUBISHI HEAVY IND THERMAL SYSTEMS LTD (JP)
International Classes:
G01S5/22
Foreign References:
| JPS5327088A | 1978-03-13 | |||
| JPH06222130A | 1994-08-12 | |||
| JPH09127244A | 1997-05-16 | |||
| JPS60138422A | 1985-07-23 | |||
| JP2004028967A | 2004-01-29 | |||
| JP2003222675A | 2003-08-08 | |||
| JPH02161383A | 1990-06-21 | |||
| JP4867836B2 | 2012-02-01 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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