WO2006105948B1 - Active countersound system with special arrangement of the secondary actuators for reducing the passage of sound at an open boundary area of two volumes - Google Patents
Active countersound system with special arrangement of the secondary actuators for reducing the passage of sound at an open boundary area of two volumesInfo
- Publication number
- WO2006105948B1 WO2006105948B1 PCT/EP2006/003092 EP2006003092W WO2006105948B1 WO 2006105948 B1 WO2006105948 B1 WO 2006105948B1 EP 2006003092 W EP2006003092 W EP 2006003092W WO 2006105948 B1 WO2006105948 B1 WO 2006105948B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sound wave
- secondary actuators
- waves
- passage area
- countersound
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1785—Methods, e.g. algorithms; Devices
- G10K11/17857—Geometric disposition, e.g. placement of microphones
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1787—General system configurations
- G10K11/17879—General system configurations using both a reference signal and an error signal
- G10K11/17881—General system configurations using both a reference signal and an error signal the reference signal being an acoustic signal, e.g. recorded with a microphone
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/10—Applications
- G10K2210/12—Rooms, e.g. ANC inside a room, office, concert hall or automobile cabin
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Curtains And Furnishings For Windows Or Doors (AREA)
- Power-Operated Mechanisms For Wings (AREA)
- Pinball Game Machines (AREA)
Abstract
An active countersound system (10) for actively reducing the sound waves of primary sound waves (16), with a regulator unit (11), an error sensor (12), a reference sensor (13) and several secondary actuators (14). The secondary actuators (14) are designed to emit countersound waves (15), wherein the regulator unit (11), which is coupled to the secondary actuators (15), processes an error signal (F) and a reference signal (R), and generates a secondary signal (S), which by way of the coupling is conveyed to the secondary actuators (14) in order to control the secondary actuators (14) by means of the secondary signal (S) such that said secondary actuators (14) generate countersound waves (15) that reduce the error signal (F) so that optimal sound wave abatement is implemented, wherein the secondary actuators (14) are arranged such that they are located on the margin of an open passage area (21), which passage area (21) comprises a margin and is to be penetrated by the primary sound waves (16), in order to ensure active sound wave abatement of the open space that in the direction of passage is arranged behind the open passage area (21), of the countersound waves (15) in the manner of a curtain.
Claims
1. An active countersound system (10) for actively reducing the sound waves of at least one primary sound wave emanating from a primary actuator that emits primary sound waves (16), with at least one regulator unit (11); with at least one error sensor (12); with at least one reference sensor (13); with several secondary actuators (14); wherein the secondary actuators (14) are designed to emit countersound waves (15); wherein the error sensor (12), which is coupled to the regulator unit (11), acquires the superimposed sound waves (15, 16, 16'), which are conveyed as an error signal (F) to the regulator unit (11) by way of the coupling; wherein the reference sensor (13), which is coupled to the regulator unit (11), acquires the primary sound wave (16), of which there is at least one, which is conveyed to the regulator unit (11) by way of the coupling; wherein the reference sensor (13) and the error sensor are designed so as to be integrated in one sensor; wherein the regulator unit (11), which is coupled to the secondary actuators (15), processes the error signal (F) and the reference signal (R), and generates a secondary signal (S), which is conveyed to the secondary actuators (14) by way of the coupling in order to control the secondary actuators (14) , depending on the error signal (F), by means of the secondary signal (S) such that KK:FS:ps said secondary actuators (14) generate countersound waves (15) that reduce the error signal (F) so that optimum sound wave abatement is implemented; wherein the secondary actuators (14) are arranged such that they are located on the margin of a passage area that is at least partly open, which passage area comprises a margin and is to be penetrated by the primary sound waves (16), in order to ensure active sound wave abatement of at least part of the space arranged behind the open passage area (21), which space is at least partly open, of the countersound waves (15) in the manner of a curtain.
2. The active countersound system (10) of claim 1, in which the secondary actuators (14) are equidistant along the margin of the open passage area (21).
3. The active countersound system (10) of claim 1 or 2, in which the number of secondary actuators (14) has been selected depending on parameters such as the geometry of the space to be shielded, geometry of the open passage area (21), spectral composition of the primary sound wave(s) (16), amplitude and/or frequency of the primary sound wave(s) (16), degree of the desired sound wave abatement.
4. The active countersound system (10) of any one of claims 1 to 3, in which the type of secondary actuators (14) has been selected depending on parameters such as the geometry of the space to be shielded, geometry of the open passage area (21), spectral composition of the primary sound wave(s) (16), amplitude and/or frequency of the primary sound wave(s) (16), degree of the desired sound wave abatement.
5. The active countersound system (10) of any one of claims 1 to 4, -21-
in which several error sensors (12) are in place, wherein the number and/or the positioning of the error sensors (12) have/has been selected depending on parameters such as the geometry of the space to be shielded, geometry of the open passage area (21), spectral composition of the primary sound wave(s) (16), amplitude and/or frequency of the primary sound wave(s) (16), degree of the desired sound wave abatement.
6. A method for actively abating sound waves of at least one primary sound wave emanating from a primary actuator that emits primary sound waves, in which method by means of a reference sensor (13) a reference signal (R) of a primary sound wave (16) is acquired; by means of an error sensor (12) an error signal (F) of superimposed sound waves (15, 16, 16') is acquired; wherein the reference sensor (13) and the error sensor are designed so as to be integrated in one sensor; by means of couplings the error signal (F) and the reference signal (R) are transmitted to a regulator unit (11); the regulator unit (11) evaluates the transmitted signals (R, F), and a secondary signal (S) is generated; the secondary signal (S) is transmitted by means of coupling to secondary actuators (14); the secondary actuators (14) are arranged on the margin of an open passage area (21 ) for the primary sound waves (16); and the secondary actuators (14) from the transmitted secondary signal (S) generate countersound waves (15) which in the manner of a curtain are superimposed on the open passage area (21) so that the primary sound wave (16, -22-
16') that propagates through the open passage area is reduced or eliminated, wherein the steps are carried out repeatedly in a control circuit.
7. An active countersound system arrangement (30), comprising an at least partly open control volume (20) with an open passage area (21) with a margin; comprising an active countersound system (10) of one of claims 1 to 6 for actively reducing the sound waves of the primary sound waves (16) in the control volume (20).
8. The use of an active countersound system (10) for actively reducing sound waves for a control volume (20) that is at least partly open.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/908,383 US20080196967A1 (en) | 2005-04-07 | 2006-04-05 | Active Countersound System with Special Arrangement of the Secondary Actuators for Reducing the Passage of Sound at an Open Boundary Area of Two Volumes; Active Countersound Arrangement; Method for Actively Reducing Sound |
| JP2008504679A JP2008537166A (en) | 2005-04-07 | 2006-04-05 | Active anti-sound system, active anti-sound device, active reduction of sound waves using a specific arrangement of secondary actuators to reduce the amount of sound passing in the open boundary between the two volumes Method of using an active counter-sound system to actively reduce sound waves to an at least partially open control volume |
| CA002597636A CA2597636A1 (en) | 2005-04-07 | 2006-04-05 | Active countersound system with special arrangement of the secondary actuators for reducing the passage of sound at an open boundary area of two volumes |
| EP06724041A EP1866908A2 (en) | 2005-04-07 | 2006-04-05 | Active countersound system with special arrangement of the secondary actuators for reducing the passage of sound at an open boundary area of two volumes |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US66906105P | 2005-04-07 | 2005-04-07 | |
| DE102005016021A DE102005016021A1 (en) | 2005-04-07 | 2005-04-07 | Active counter sound system has secondary actuators arranged at edge of open depressing surface to be penetrable by primary sound wave |
| US60/669,061 | 2005-04-07 | ||
| DE102005016021.2 | 2005-04-07 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| WO2006105948A2 WO2006105948A2 (en) | 2006-10-12 |
| WO2006105948A3 WO2006105948A3 (en) | 2007-05-24 |
| WO2006105948B1 true WO2006105948B1 (en) | 2007-07-19 |
Family
ID=37026258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2006/003092 WO2006105948A2 (en) | 2005-04-07 | 2006-04-05 | Active countersound system with special arrangement of the secondary actuators for reducing the passage of sound at an open boundary area of two volumes |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20080196967A1 (en) |
| EP (1) | EP1866908A2 (en) |
| JP (1) | JP2008537166A (en) |
| CN (1) | CN101147189A (en) |
| CA (1) | CA2597636A1 (en) |
| DE (1) | DE102005016021A1 (en) |
| RU (1) | RU2411592C2 (en) |
| WO (1) | WO2006105948A2 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007012611A1 (en) | 2007-03-13 | 2009-01-08 | Airbus Deutschland Gmbh | Method for active soundproofing in closed inner chamber, involves identifying secondary modulator or transmission path of interfering signal and arranging secondary modulator |
| US8331577B2 (en) * | 2008-07-03 | 2012-12-11 | Hewlett-Packard Development Company, L.P. | Electronic device having active noise control with an external sensor |
| CN101521008B (en) * | 2009-04-02 | 2011-08-03 | 南京大学 | Active sound-absorption taper and manufacture method thereof |
| CN101902680B (en) * | 2010-07-05 | 2011-11-16 | 南京大学 | Design method of virtual coupled space based on active control |
| CN102184730B (en) * | 2011-02-17 | 2012-08-15 | 南京大学 | Feed-forward active noise barrier |
| US8933576B2 (en) | 2012-05-02 | 2015-01-13 | United Technologies Corporation | Hybrid friction wheel gearbox drivetrain for wind turbine applications |
| US9091250B2 (en) | 2012-05-02 | 2015-07-28 | United Technologies Corporation | Ultra high efficiency low friction drive chain for wind turbine applications |
| US8598725B1 (en) | 2012-06-11 | 2013-12-03 | United Technologies Corporation | Utilizing flux controllable PM electric machines for wind turbine applications |
| US10121464B2 (en) * | 2014-12-08 | 2018-11-06 | Ford Global Technologies, Llc | Subband algorithm with threshold for robust broadband active noise control system |
| US9779720B2 (en) * | 2015-04-08 | 2017-10-03 | Ford Global Technologies, Llc | Control system having active noise and vibration centralized control through digital network |
| EP3185240A1 (en) | 2015-12-22 | 2017-06-28 | Helmut-Schmidt-Universität | System and method for actively reducing noise passing through an opening in a sound barrier |
| CN108518258B (en) * | 2018-02-28 | 2020-09-08 | 付万贤 | Standing wave tube collecting, silencing and resonating system of vehicle silencing device |
| RU182230U1 (en) * | 2018-04-12 | 2018-08-08 | Александр Павлович Тюрин | NOISE PROTECTION DEVICE |
| MX2022006246A (en) | 2019-12-12 | 2022-06-22 | Shenzhen Shokz Co Ltd | Systems and methods for noise control. |
| DE102020100959A1 (en) | 2020-01-16 | 2021-07-22 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Active noise damping system and method for active damping of background noise |
| CN111339651B (en) * | 2020-02-22 | 2022-06-14 | 西北工业大学 | Secondary sound source layout optimization method for decoupling error sensor layout information |
| CN114543192B (en) * | 2022-02-24 | 2023-11-14 | 青岛海信日立空调系统有限公司 | Air conditioner outdoor unit |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2139941A1 (en) * | 1971-08-10 | 1973-03-01 | Messerschmitt Boelkow Blohm | NOISE SHIELDING BY SOUND GRILLE |
| US5024288A (en) * | 1989-08-10 | 1991-06-18 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Sound attenuation apparatus |
| JPH05310389A (en) * | 1992-05-08 | 1993-11-22 | Hitachi Ltd | Elevator with noise eliminating device |
| JP3634406B2 (en) * | 1993-09-17 | 2005-03-30 | 株式会社東芝 | Active silencer |
| US5872853A (en) * | 1993-12-10 | 1999-02-16 | Marquiss; Stanley Lynn | Noise abatement device |
| US5475761A (en) * | 1994-01-31 | 1995-12-12 | Noise Cancellation Technologies, Inc. | Adaptive feedforward and feedback control system |
| JPH10143167A (en) * | 1996-11-08 | 1998-05-29 | Fujitsu Ltd | Noise controller |
| DE19832517C2 (en) * | 1998-07-20 | 2003-03-20 | Ibs Ingenieurbuero Fuer Schall | Active silencing methods and silencers therefor |
| GB0004243D0 (en) * | 2000-02-24 | 2000-04-12 | Wright Selwyn E | Improvements in and relating to active noise reduction |
| JP3736790B2 (en) * | 2000-04-21 | 2006-01-18 | 三菱重工業株式会社 | Active sound insulation wall |
| US7352870B2 (en) * | 2002-03-29 | 2008-04-01 | Kabushiki Kaisha Toshiba | Active sound muffler and active sound muffling method |
| JP4086743B2 (en) * | 2002-09-20 | 2008-05-14 | 松下電器産業株式会社 | Noise control device |
| JP2004361938A (en) * | 2003-05-15 | 2004-12-24 | Takenaka Komuten Co Ltd | Noise reduction device |
-
2005
- 2005-04-07 DE DE102005016021A patent/DE102005016021A1/en not_active Ceased
-
2006
- 2006-04-05 RU RU2007139146/28A patent/RU2411592C2/en not_active IP Right Cessation
- 2006-04-05 EP EP06724041A patent/EP1866908A2/en not_active Withdrawn
- 2006-04-05 WO PCT/EP2006/003092 patent/WO2006105948A2/en active Application Filing
- 2006-04-05 CN CNA2006800098037A patent/CN101147189A/en active Pending
- 2006-04-05 US US11/908,383 patent/US20080196967A1/en not_active Abandoned
- 2006-04-05 JP JP2008504679A patent/JP2008537166A/en active Pending
- 2006-04-05 CA CA002597636A patent/CA2597636A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| DE102005016021A1 (en) | 2006-10-12 |
| JP2008537166A (en) | 2008-09-11 |
| CN101147189A (en) | 2008-03-19 |
| WO2006105948A3 (en) | 2007-05-24 |
| EP1866908A2 (en) | 2007-12-19 |
| CA2597636A1 (en) | 2006-10-12 |
| US20080196967A1 (en) | 2008-08-21 |
| WO2006105948A2 (en) | 2006-10-12 |
| RU2411592C2 (en) | 2011-02-10 |
| RU2007139146A (en) | 2009-05-20 |
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