CN108389571A - Active noise reducing device - Google Patents
Active noise reducing device Download PDFInfo
- Publication number
- CN108389571A CN108389571A CN201810318837.9A CN201810318837A CN108389571A CN 108389571 A CN108389571 A CN 108389571A CN 201810318837 A CN201810318837 A CN 201810318837A CN 108389571 A CN108389571 A CN 108389571A
- Authority
- CN
- China
- Prior art keywords
- hemisphere face
- cylindrical tube
- sound
- sonic generator
- array
- 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.)
- Pending
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
- G10K11/1781—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 characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions
- G10K11/17821—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 characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions characterised by the analysis of the input signals only
-
- 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
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
A kind of active noise reducing device, it is made of the hemisphere face sound transducer array, hemisphere face sonic generator array and the micro computer module that are mounted on the base, the hemispherical centre of sphere where each hemisphere face sound transducer array corresponds to a spatial value, each sound transducer on hemisphere face sound transducer array is in the identical cylindrical tube of size, cylindrical tube is equidistantly evenly distributed on a hemisphere face, the nozzle of cylindrical tube is outside, its center line is directed toward the centre of sphere, sound transducer is mounted on the bottom of cylindrical tube, and induction end faces nozzle；The hemispherical centre of sphere where each hemisphere face sonic generator array corresponds to a spatial value, each sonic generator on hemisphere face sonic generator array is in the identical cylindrical tube of size, cylindrical tube is equidistantly evenly distributed on a hemisphere face, the nozzle of cylindrical tube is outside, its center line is directed toward the centre of sphere, sonic generator is mounted on the bottom of cylindrical tube, and sound wave occurs to rectify against nozzle.
Description
Technical field
A kind of active noise reducing device.
Background technology
Currently, existing active noise reducing device is received simply by single sound transducer and sonic generator and counteracting is made an uproar
Sound can only select a kind of sound of frequency and intensity to carry out noise reduction in synchronization, and cannot for the direction where sound source into
Row is reversed to offset, and noise reduction is not ideal enough.
Invention content
In order to overcome the shortcomings of that existing active noise reducing device, the present invention provide a kind of active noise reducing device.The active noise reduction
Device can by position where each sound source of hemisphere face sound transducer array detection that is made of multiple sound transducers and
The intensity and frequency of its sound generated, then control from the hemisphere face sonic generator array that multiple sonic generators form to phase
The sound source in direction is answered to send out the sound wave of same intensity and frequency, to offset the sound that each sound source transmits.
The technical solution adopted by the present invention to solve the technical problems is：The active noise reducing device is by being mounted on the base
Hemisphere face sound transducer array, hemisphere face sonic generator array and micro computer module composition, each hemisphere face sound sensor
The hemispherical centre of sphere where device array corresponds to a spatial value, and each sound on hemisphere face sound transducer array passes
Sensor is mounted in the identical cylindrical tube of size, and cylindrical tube is equidistantly evenly distributed on a hemisphere face, the pipe of cylindrical tube
Outward, center line is directed toward the centre of sphere to mouth, and sound transducer is mounted on the bottom of cylindrical tube, and induction end faces nozzle；It is each
The hemispherical centre of sphere where hemisphere face sonic generator array corresponds to a spatial value, hemisphere face sonic generator array
On each sonic generator in the identical cylindrical tube of size, cylindrical tube is equidistantly evenly distributed on a hemisphere face
On, the nozzle of cylindrical tube is outside, and center line is directed toward the centre of sphere, and sonic generator is mounted on the bottom of cylindrical tube, sound wave hair
It causes trouble and faces nozzle；The signal output end of all sound transducers is connected with the signal input part of micro computer module, often
Position coordinates where a sound transducer corresponds to it on hemisphere face；The signal input part of all sonic generators with micro- electricity
The signal output end of brain module is connected, the position coordinates where each sonic generator corresponds to it on hemisphere face.
The intensity and frequency of the position coordinates of oneself and the sound received are transmitted to micro- electricity by each sound transducer simultaneously
Brain module, micro computer module calculate sound source with respect to residing for sonic generator array according to the position coordinates of each sound transducer
Direction, then the sonic generator of the corresponding Sounnd source direction of each direction on sonic generator array is controlled, to each sound source institute
Direction send out the sound wave of same intensity and frequency.
The invention has the advantages that the strong of multi-acoustical can be detected simultaneously by its hemisphere face sound transducer array
Degree, frequency and place direction, and sent out to the sound source of multiple directions by its hemisphere face sonic generator array and they
The noise same intensity of generation and the sound wave of frequency, to offset the noise that each sound source generates.
Description of the drawings
The following further describes the present invention with reference to the drawings.
Fig. 1 is the composed structure schematic diagram of the present invention.
In figure（1）Sound transducer,（2）Cylindrical tube,（3）Sonic generator,（4）Cylindrical tube,（5）Pedestal.
Specific implementation mode
The active noise reducing device is by being mounted on pedestal（5）On hemisphere face sound transducer array, hemisphere face sound wave occur
Device array and micro computer module composition, the hemispherical centre of sphere where each hemisphere face sound transducer array correspond to a space
Coordinate value, each sound transducer on hemisphere face sound transducer array（1）Mounted in the identical cylindrical tube of size（2）In,
Cylindrical tube is equidistantly evenly distributed on a hemisphere face, and the nozzle of cylindrical tube is outside, and center line is directed toward the centre of sphere, and sound passes
Sensor is mounted on the bottom of cylindrical tube, and induction end faces nozzle；Hemisphere where each hemisphere face sonic generator array
The centre of sphere in face corresponds to a spatial value, each sonic generator on hemisphere face sonic generator array（3）Mounted in size
Identical cylindrical tube（4）In, cylindrical tube is equidistantly evenly distributed on a hemisphere face, and the nozzle of cylindrical tube is outside,
Center line is directed toward the centre of sphere, and sonic generator is mounted on the bottom of cylindrical tube, and sound wave occurs to rectify against nozzle；All sound pass
The signal output end of sensor is connected with the signal input part of micro computer module, and each sound transducer corresponds to half where it
Position coordinates on spherical surface；The signal input part of all sonic generators is connected with the signal output end of micro computer module,
Position coordinates where each sonic generator corresponds to it on hemisphere face.
The intensity and frequency of the position coordinates of oneself and the sound received are transmitted to micro- electricity by each sound transducer simultaneously
Brain module, micro computer module calculate sound source with respect to residing for sonic generator array according to the position coordinates of each sound transducer
Direction, then the sonic generator of the corresponding Sounnd source direction of each direction on sonic generator array is controlled, to each sound source institute
Direction send out the sound wave of same intensity and frequency.
Disclosed above is only the specific embodiment of the application, and however, this application is not limited to this, any this field
The thinkable variation of technical staff, should all fall into the protection domain of the application.
Claims (2)
1. a kind of active noise reducing device, by hemisphere face sound transducer array, the hemisphere face sonic generator being mounted on the base
Array and micro computer module composition, it is characterized in that：The hemispherical centre of sphere where each hemisphere face sound transducer array corresponds to
One spatial value, each sound transducer on hemisphere face sound transducer array are mounted in the identical cylindrical tube of size
In, cylindrical tube is equidistantly evenly distributed on a hemisphere face, and the nozzle of cylindrical tube is outside, and center line is directed toward the centre of sphere, sound
Sound sensor is mounted on the bottom of cylindrical tube, and induction end faces nozzle；Where each hemisphere face sonic generator array
The hemispherical centre of sphere corresponds to a spatial value, and each sonic generator on hemisphere face sonic generator array is mounted in size
In identical cylindrical tube, cylindrical tube is equidistantly evenly distributed on a hemisphere face, and the nozzle of cylindrical tube is outside, center
Line is directed toward the centre of sphere, and sonic generator is mounted on the bottom of cylindrical tube, and sound wave occurs to rectify against nozzle；All sound transducers
Signal output end be connected with the signal input part of micro computer module, each sound transducer corresponds to hemisphere face where its
On position coordinates；The signal input part of all sonic generators is connected with the signal output end of micro computer module, each
Position coordinates where sonic generator corresponds to it on hemisphere face.
2. active noise reducing device according to claim 1, it is characterized in that：Each sound transducer is simultaneously by the position of oneself
The intensity and frequency of coordinate and the sound received are transmitted to micro computer module, and micro computer module is according to the position of each sound transducer
It sets coordinate and calculates sound source with respect to the direction residing for sonic generator array, then control each direction on sonic generator array
The sonic generator of corresponding Sounnd source direction, the sound wave of same intensity and frequency is sent out to the direction where each sound source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810318837.9A CN108389571A (en) | 2018-04-11 | 2018-04-11 | Active noise reducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810318837.9A CN108389571A (en) | 2018-04-11 | 2018-04-11 | Active noise reducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108389571A true CN108389571A (en) | 2018-08-10 |
Family
ID=63073753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810318837.9A Pending CN108389571A (en) | 2018-04-11 | 2018-04-11 | Active noise reducing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108389571A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050246167A1 (en) * | 2002-08-30 | 2005-11-03 | Hirofumi Nakajima | Sound source search system |
| CN102981145A (en) * | 2012-11-12 | 2013-03-20 | 李良杰 | Sound source locator |
| CN106328118A (en) * | 2016-08-31 | 2017-01-11 | 江苏大学 | Sound attenuation device and method |
-
2018
- 2018-04-11 CN CN201810318837.9A patent/CN108389571A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050246167A1 (en) * | 2002-08-30 | 2005-11-03 | Hirofumi Nakajima | Sound source search system |
| CN102981145A (en) * | 2012-11-12 | 2013-03-20 | 李良杰 | Sound source locator |
| CN106328118A (en) * | 2016-08-31 | 2017-01-11 | 江苏大学 | Sound attenuation device and method |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180810 |
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| WD01 | Invention patent application deemed withdrawn after publication |