JP2007114052A5 - - Google Patents
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- JP2007114052A5 JP2007114052A5 JP2005305971A JP2005305971A JP2007114052A5 JP 2007114052 A5 JP2007114052 A5 JP 2007114052A5 JP 2005305971 A JP2005305971 A JP 2005305971A JP 2005305971 A JP2005305971 A JP 2005305971A JP 2007114052 A5 JP2007114052 A5 JP 2007114052A5
- Authority
- JP
- Japan
- Prior art keywords
- sound
- waveform
- abnormal
- abnormal noise
- predetermined parameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000002159 abnormal effect Effects 0.000 claims 11
- 238000007689 inspection Methods 0.000 claims 5
- 238000000034 method Methods 0.000 claims 1
- 238000003672 processing method Methods 0.000 claims 1
Claims (2)
外部からの音の進入を抑制する防音構造を備え、内部に前記被検査対象が設置される防
音箱と、
該防音箱内に配設された集音手段と、
該集音手段で取り込んだ前記被検査対象の作動音に含まれる、前記防音箱で遮断しきれ
ない外部からの音の成分を除去する外部音成分除去手段と、
該外部音成分除去手段により外部からの音の成分が除去された前記被検査対象の作動音
の時間軸波形を２乗平均し、該２乗平均後の波形の形態に基づいて、前記被検査対象の作
動音に含まれる異音の有無、及び／又は該異音の発生部位を判定する異音判定処理手段と
を備え、
前記異音判定処理手段が、
前記２乗平均後の波形を、レベルが低い方の第１の波形と、該第１の波形から突出して
いる第２の波形とに分け、これら第１及び第２の波形の形態から前記２乗平均後の波形の
特徴を数値化するための所定のパラメータを算出するパラメータ算出手段を備え、
該パラメータ算出手段により算出された前記所定のパラメータの値に基づいて、前記被
検査対象の作動音に異音が含まれているか否かを判定する処理を行うものであることを特
徴とする異音検査装置。 An abnormal noise inspection device for inspecting abnormal noise included in the operating sound of an inspection target,
A soundproof box that has a soundproof structure that suppresses the entry of sound from outside, and in which the object to be inspected is installed;
Sound collecting means disposed in the soundproof box;
An external sound component removing unit that removes an external sound component that cannot be blocked by the soundproof box, included in the operation sound of the inspection target captured by the sound collecting unit;
The time axis waveform of the operation sound of the test object from which the external sound component is removed by the external sound component removing means is square-averaged, and based on the form of the waveform after the square average, the test object An abnormal sound determination processing means for determining presence / absence of abnormal noise included in the target operating sound and / or a site where the abnormal noise is generated ,
The abnormal sound determination processing means,
The waveform after the mean square is projected from the first waveform having a lower level and the first waveform.
The second waveform is divided into the waveform of the waveform after the mean square from the first and second waveform forms.
Parameter calculating means for calculating a predetermined parameter for digitizing the feature;
Based on the value of the predetermined parameter calculated by the parameter calculating means,
An abnormal sound inspection apparatus for performing a process of determining whether or not an abnormal sound is included in an operation sound to be inspected.
理方法であって、
演算処理手段が、前記被検査対象の作動音の時間軸波形を２乗平均するステップと、
該２乗平均後の波形を、レベルが低い方の第１の波形と、該第１の波形から突出してい
る第２の波形とに分け、これら第１及び第２の波形の形態から前記２乗平均後の波形の特
徴を数値化するための所定のパラメータを算出するステップと、
該算出された前記所定のパラメータの値に基づいて、前記被検査対象の作動音に異音が
含まれているか否かを判定するステップとを実行することを特徴とする異音判定処理方法。 An abnormal sound determination processing method for determining an abnormal sound included in an operation sound of an inspection target captured via a sound collecting means,
An arithmetic processing means that squares the time axis waveform of the operating sound of the test object;
The waveform after the mean square is divided into a first waveform having a lower level and a second waveform protruding from the first waveform, and the above-mentioned 2 from the form of the first and second waveforms. Calculating a predetermined parameter for quantifying the characteristic of the waveform after the multiplication average;
And a step of determining whether or not the operation sound to be inspected includes abnormal noise based on the calculated value of the predetermined parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005305971A JP2007114052A (en) | 2005-10-20 | 2005-10-20 | Strange sound inspection system and strange sound decision processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005305971A JP2007114052A (en) | 2005-10-20 | 2005-10-20 | Strange sound inspection system and strange sound decision processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2007114052A JP2007114052A (en) | 2007-05-10 |
| JP2007114052A5 true JP2007114052A5 (en) | 2008-11-13 |
Family
ID=38096379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005305971A Pending JP2007114052A (en) | 2005-10-20 | 2005-10-20 | Strange sound inspection system and strange sound decision processing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2007114052A (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5307496B2 (en) * | 2008-09-30 | 2013-10-02 | Ｎｅｃパーソナルコンピュータ株式会社 | Inspection system, inspection system inspection method, and program |
| JP5860655B2 (en) * | 2011-10-07 | 2016-02-16 | 綜合警備保障株式会社 | Detection apparatus and detection method |
| KR101321264B1 (en) | 2012-03-20 | 2013-10-28 | 삼성전기주식회사 | Pure tone test apparatus and control method thereof |
| JP2014093739A (en) * | 2012-11-06 | 2014-05-19 | Nagase Techno-Engineering Co Ltd | Sound collection device |
| JP5958362B2 (en) * | 2013-01-25 | 2016-07-27 | 富士通株式会社 | Abnormal sound inspection apparatus and abnormal sound inspection method |
| JP6165043B2 (en) * | 2013-12-13 | 2017-07-19 | 三菱重工業株式会社 | Noise evaluation apparatus and noise evaluation method |
| CN110907192B (en) * | 2019-11-18 | 2021-05-11 | 东风商用车有限公司 | Method for reducing passing noise of whole vehicle |
| CN111491248A (en) * | 2020-04-07 | 2020-08-04 | 深圳回收宝科技有限公司 | Audio detection system and audio detection method of electronic product |
| TWI754384B (en) * | 2020-09-21 | 2022-02-01 | 華碩電腦股份有限公司 | Noise measuring device |
| CN113483884B (en) * | 2021-06-21 | 2023-09-26 | 深圳市优瑞特检测技术有限公司 | Vibration abnormal sound testing device for package detection and detection method thereof |
| CN116125275B (en) * | 2023-04-04 | 2023-06-30 | 常州市美特精密电机有限公司 | Reducing motor test system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0718746B2 (en) * | 1985-05-21 | 1995-03-06 | 株式会社明電舍 | Rotor abnormality detection device |
| JP2004333199A (en) * | 2003-05-01 | 2004-11-25 | Nidec Copal Corp | Apparatus and method for determining abnormal sound |
-
2005
- 2005-10-20 JP JP2005305971A patent/JP2007114052A/en active Pending
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