US 12,230,078 B2
Sound-source search system and sound-source search method
Atsushi Tabata, Okazaki (JP); Masafumi Yamamoto, Nagakute (JP); Koichi Okuda, Toyota (JP); and Yuuki Makino, Aichi-gun (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Nov. 2, 2021, as Appl. No. 17/517,411.
Claims priority of application No. 2020-209728 (JP), filed on Dec. 17, 2020.
Prior Publication US 2022/0198845 A1, Jun. 23, 2022
Int. Cl. B60W 40/10 (2012.01); G07C 5/08 (2006.01)
CPC G07C 5/0833 (2013.01) [B60W 40/10 (2013.01); B60W 2420/54 (2013.01); B60W 2554/4041 (2020.02)] 10 Claims
OG exemplary drawing
 
1. A sound-source search system for searching a sound source that causes a noise generated from a vehicle and propagated inside or outside a cabin of the vehicle,
the sound-source search system comprising:
a microphone configured to acquire sound data by collecting and measuring a sound;
a display configured to determine and notify a sound measuring position in which the microphone is to be installed for collecting and measuring the sound; and
a controller configured to acquire a driving information of a driving state of the vehicle upon generation of the noise,
wherein the controller is further configured to:
extract a sound-source candidate that is a candidate of the sound source causing the noise, based on the acquired driving information,
store a predetermined relationship between the extracted sound-source candidate and the sound measuring position,
set the sound measuring position based on the extracted sound-source candidate and the predetermined relationship, such that the sound measuring position is changed depending on the extracted sound-source candidate,
cause the display to notify the sound measuring position which is set based on the extracted sound-source candidate and the predetermined relationship, and
determine whether the sound-source candidate is the sound source or not, based on the sound data acquired when the sound is collected and measured by the microphone in a state in which the microphone is installed in the sound measuring position,
wherein the sound source is a device or a part of the vehicle.