| 发明名称 |
NOISE SOURCE IDENTIFICATION SYSTEM |
| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a noise source identification system to be easily arranged concerning the noise source identification system for identifying a noise source on a vehicle traveling road. <P>SOLUTION: A noise source identification system includes: a microphone array 20 constituted by multiple microphones arrayed for sound source measurement by beam forming and sound source measurement by acoustic intensity; a support stand 10 arranged on the side of a vehicle traveling road and supporting the microphone array 20 to be in a diagonally downward posture to watch the vehicle traveling road; and a noise source detection device for detecting a noise source on the vehicle traveling road based on an original sound signal which is obtained by receiving sound issued from a vehicle which travels on the vehicle traveling road by the microphone array 20. <P>COPYRIGHT: (C)2013,JPO&INPIT |
| 申请公布号 |
JP2012202958(A) |
申请公布日期 |
2012.10.22 |
| 申请号 |
JP20110070677 |
申请日期 |
2011.03.28 |
| 申请人 |
ONO SOKKI CO LTD;NATIONAL TRAFFIC SAFETY & ENVIRONMENT LABORATORY;ISHIHAMA MASAO |
发明人 |
SARUWATARI KATSUMI;ISHIHAMA MASAO;SAKAMOTO ICHIRO;TANAKA TAKEHARU;HOUZU HIROYUKI;MURAKAMI TAKAYUKI |
| 分类号 |
G01S3/808;G01S3/82;G01S7/521;H04R1/00;H04R1/40;H04R3/00 |
主分类号 |
G01S3/808 |
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