CN108983148A - A kind of pivoting microphone array apparatus for auditory localization - Google Patents
A kind of pivoting microphone array apparatus for auditory localization Download PDFInfo
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- CN108983148A CN108983148A CN201810851739.1A CN201810851739A CN108983148A CN 108983148 A CN108983148 A CN 108983148A CN 201810851739 A CN201810851739 A CN 201810851739A CN 108983148 A CN108983148 A CN 108983148A
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- microphone
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/18—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using ultrasonic, sonic, or infrasonic waves
- G01S5/22—Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements
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- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The invention discloses a kind of pivoting microphone array apparatus for auditory localization, the microphone of microphone and rotary setting including static setting, the transmission of sound signals that each microphone acquires to data collector；The microphone of the rotary setting includes a rotation array frame, is fixedly installed several microphones on rotation array frame, rotation array frame is fixedly connected with the power output shaft of motor, is driven by a motor rotation array frame and is moved in a circle；The two sides of the rotation array frame are respectively arranged with signal trigger device, and rotation array frame is rotated between two signal trigger devices；The present apparatus can be in the case where guaranteeing certain acoustic source location accuracy, using a stationary microphone and a pivoting microphone, realization is accurately positioned in real time to comprising complex sound fields such as multiple frequencies, multi-acoustical, Frequencies, the present apparatus is relative to previous sound source locating device, microphone demand number greatly reduces, and can substantially reduce sound source locating device cost.
Description
Technical field
The present invention relates to field of acoustics, more particularly, to a kind of pivoting microphone array apparatus for auditory localization.
Background technique
Since the 1970s, microphone array starts to be applied to auditory localization, and from initial linear array, ring
Shape array develops to complicated two-dimensional and cubical array.Under normal circumstances, microphone number is more, and acoustic source location accuracy is higher.
Static wheat more demanding for microphone property on engineer application, being formed using big quantity high performance microphone
Although gram wind array can preferable localization of sound source, corresponding cost also greatly improves, is unfavorable for pushing away in actual scene
Extensively.
For ordinary consumption field, with the fast development of artificial intelligence technology in recent years, auditory localization technology is being based on
Further important in the smart machine of voice signal human-computer interaction, microphone number directly influences the cost of smart machine.It is more
Microphone number be unfavorable for the reduction of product cost.
Patent of invention (2014102675228) discloses a kind of indoor voice acquisition method based on adaptive rotary alignment
With device, patent of invention (2016103040955) discloses the sound source of the scheme by two-microphone array and loudspeaker cooperation
Positioning system and method, patent of invention (2016110469537) disclose the auditory localization that voice signal is obtained using microphone
Method, apparatus and system, patent of invention (201620716980X), which is disclosed, carries out auditory localization using distributed microphone array
System.
Summary of the invention
The object of the present invention is to provide a kind of sound source locating devices, it is ensured that in the same of higher auditory localization precision
When, greatly reduce microphone demand number, it is intended to solve in existing a large amount of microphone high-precision auditory localizations due to microphone number
The problem of higher cost caused by mesh demand is more.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of pivoting microphone array apparatus for auditory localization, the Mike of microphone and rotary setting including static setting
Wind, the transmission of sound signals that each microphone acquires to data collector；
The microphone of the rotary setting includes a rotation array frame, is fixedly installed several Mikes on rotation array frame
Wind, rotation array frame are fixedly connected with the power output shaft of motor, are driven by a motor rotation array frame and are moved in a circle；
The two sides of the rotation array frame are respectively arranged with signal trigger device, rotation array frame two signal trigger devices it
Between rotated.
In the above-mentioned technical solutions, the signal transmission between the microphone and data collector can be wire transmission,
Or wireless transmission.
In the above-mentioned technical solutions, when using wire transmission, it is provided with slip ring electrical feedthrough in the shaft of motor output,
Microphone on rotation array frame is connected on slip ring electrical feedthrough by signal transmssion line.
In the above-mentioned technical solutions, the slip ring electrical feedthrough include the inner ring being fixedly connected with motor output revolving shaft and with branch
The outer ring of support arrangement connection, the inner ring and shaft rotate synchronously.
In the above-mentioned technical solutions, when using wireless transmission, it is provided with wireless communication module on rotation array frame, revolves
Turn the signal module output by wireless communication of each microphone on array.
In the above-mentioned technical solutions, it has been arranged radially sliding slot along rotation on the rotation array frame, the microphone is logical
Connector is crossed to be connected in sliding slot.
In the above-mentioned technical solutions, the microphone can slide in sliding slot, can be consolidated microphone by connector
The different location being scheduled in sliding slot changes the radius of turn of microphone.
In the above-mentioned technical solutions, the signal trigger device includes a laser signal transmitter and a laser signal
Receiver, laser signal transmitter and the opposed setting of laser signal receivers are in rotation array frame two sides, data collector
It is acquired with laser signal and carries out signal connection.
In the above-mentioned technical solutions, laser signal transmitter continuously emits laser and is received by laser signal receivers, when
Rotation array frame rotates between laser signal transmitter and laser signal transmitter, and blocking laser signal receiver receives letter
Number, laser signal receivers trigger data acquisition device acquires the voice data of current microphone on rotation array frame.
In the above-mentioned technical solutions, rotation array frame continual rotation driven by the motor, data collector according to
The speed automatic data collection of rotation array frame.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
It is stationary microphone array with microphone majority employed in existing sound source locating device, in fixed spatial position
Cloth microphone obtains sound field information；When partial devices carry out acoustic field using microphone array, every one group of the acquisition of microphone
After data, data acquisition is carried out again behind mobile its position of change, which can not accomplish real-time movement of the microphone to data
Measurement.In sound field data acquisition, microphone array uninterruptedly rotates the present apparatus, obtains pivoting microphone measurement data,
The present apparatus provides a kind of completely new sound source locating device.
The present invention can be in the case where guaranteeing certain acoustic source location accuracy, using a stationary microphone and a rotation wheat
Gram wind, realization are accurately positioned in real time to comprising complex sound fields such as multiple frequencies, multi-acoustical, Frequencies.
Under the present invention can be required according to the acoustic source location accuracy of high-resolution, high dynamic range, a small amount of rotation wheat is added
Gram wind is realized and is positioned to the real-time high-precision of complicated sound source.
The present invention provides a kind of completely new sound source locating device compared with existing auditory localization technology.Existing sound source
Positioning device uses stationary microphone array, and acoustic source location accuracy is poor, and microphone demand number is big.The present invention is using rotation wheat
Sound source position can be accurately positioned while greatly reducing microphone using number in gram wind array sound source positioning device.It reduces
The cost of sound source locating device and the accuracy for improving auditory localization.
Detailed description of the invention
Examples of the present invention will be described by way of reference to the accompanying drawings, in which:
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is signal transmission connection schematic diagram；
Fig. 3 is signal trigger flow schematic diagram；
Wherein: 1 is motor, and 2 be slip ring electrical feedthrough, and 3 be machine shaft, and 4 be wireless module, and 5 be rotation array frame, and 6 be Mike
Wind, 7 be data collector.
Specific embodiment
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
Embodiment one
As shown in Figure 1, pivoting microphone array apparatus includes a motor, rotation array bracket and slip ring electrical feedthrough；Motor is
The motor of adjustable speed, for driving rotation array frame to be rotated, rotation array frame is fixed on the output revolving shaft of motor, motor
Can in certain range of speeds continuous speed adjustment, after speed regulation, revolving speed reaches setting speed within a short period of time, and motor speed is steady
It is fixed.
Rotation array frame is centrosymmetric distribution, and array center connects machine shaft.Sliding slot, wheat are provided on array
Gram wind is fixed with corresponding collet, and collet is connected in sliding slot, adjusts microphone rotation by the way that microphone collet is mobile in sliding slot
Radius.
Slip ring electrical feedthrough is as signal transmitting apparatus, for connecting pivoting microphone cable and data collector cable.It is sliding
Ring electrical feedthrough inner ring is fixed on adjustable speed motor shaft, slip ring electrical feedthrough inner ring and machine shaft synchronous rotary.Slip ring draws
Electric appliance cable port number meets needs, it is sufficient to guarantee multiple pivoting microphone signal transmission needs.Pivoting microphone signal passes through
Signal transmission cable is connected to slip ring electrical feedthrough inner ring signaling interface end, due to array and slip ring electrical feedthrough synchronous rotary, letter
Number transmission cable will not be wound.Realize that signal passes by slip-ring device and outer ring signaling interface end in inner ring signaling interface end
It is defeated.Outer ring signaling interface end is connected to data collector by signal transmission cable.
Microphone is respectively multiple pivoting microphones and single stationary microphone, for carrying out data acquisition, rotation Mike
Wind, which is centrosymmetric, is installed on rotation array frame, and distance of the microphone apart from rotation center has certain mathematical relationship, Mike
Wind is connected to slip ring electrical feedthrough inner ring cable through signal cable, and slip ring electrical feedthrough inner ring cable draws electricity by slip ring structure and slip ring
Device outer ring cable is connected, and outer ring cable is connected to data collector, to obtain pivoting microphone measuring signal.Static Mike
Wind is fixed on stationary apparatus, and microphone signal cable is directly connect with signal picker.
Laser flip flop is acquired for trigger signal, and real-time calibration array orientation, laser signal issuing side and receiving end
Array Plane of rotation two sides are located at, when array reaches specific position in rotary course, array can stop laser
Pass through, to realize that the triggering acquire to microphone signal and array reach the time record of special angle.
Data collector is rotated to for acquiring signal, and by laser triggering device triggering collection signal in array
Laser signal is triggered when special angle, realizes the triggering collection to microphone signal.And pass through the real-time record array of laser aid
Frame rotates again reaches the angle moment, and corresponding temporal information is transmitted to signal picker.
Embodiment two
On the basis of example 1, remove slip ring electrical feedthrough, by the signal transmission of pivoting microphone using the mould of wireless transmission
A wireless transport module is arranged in formula on rotation array frame, each microphone on rotation array frame is passed by signal
Defeated line is connected to wireless transport module and wirelessly transfers signals on data collector.
Either above-mentioned any signal transmission form requires to carry out when carrying out auditory localization by the present apparatus
Data trigger collection.Because what this programme was taken is motor, continual output power drives microphone ceaselessly to be rotated,
Therefore, extremely important for the data acquisition of the microphone in rotary course, it is to be ensured that the orientation and angle of each data.
Specific trigger flow is as shown in Figure 3:
By being triggered manually so that data collector acquires signal, after rotation array frame rotates and reaches special angle, laser is believed
Number stopped by array；
Data collector acquires signal, while by trigger signal input data collector again；
Data collector starts to control pivoting microphone and stationary microphone acquisition signal；
Gram elegance collection signal is input to data collector；
Constantly laser is hindered to pass through in array rotary course, laser is by the time-ofday signals input data collector at this time,
Recording the moment corresponds to the time, and the Labeling Coordinate to array can be completed.
In the present solution, stationary microphone is fixed on stationary apparatus, microphone signal cable directly connects with signal picker
It connects.When qualified relation, stationary microphone and pivoting microphone signal acquisition is not present in stationary microphone and pivoting microphone position
Mutual influence is not generated.
The invention is not limited to specific embodiments above-mentioned.The present invention, which expands to, any in the present specification to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (10)
1. a kind of pivoting microphone array apparatus for auditory localization, it is characterised in that the microphone including a static setting
With the microphone of several rotary settings, the transmission of sound signals that each microphone acquires to data collector；
The microphone of the rotary setting includes a rotation array frame, is fixedly installed several Mikes on rotation array frame
Wind, rotation array frame are fixedly connected with the power output shaft of motor, are driven by a motor rotation array frame and are moved in a circle；The rotation
The two sides for turning array are respectively arranged with signal trigger device, and rotation array frame is revolved between two signal trigger devices
Turn.
2. a kind of pivoting microphone array apparatus for auditory localization according to claim 1, it is characterised in that described
Signal transmission between microphone and data collector can be wire transmission, or wireless transmission.
3. a kind of pivoting microphone array apparatus for auditory localization according to claim 2, it is characterised in that when adopting
When with wire transmission, it is provided with slip ring electrical feedthrough in the shaft of motor output, the microphone on rotation array frame passes through signal
Transmission line is connected on slip ring electrical feedthrough.
4. a kind of pivoting microphone array apparatus for auditory localization according to claim 3, it is characterised in that described
Slip ring electrical feedthrough includes the inner ring being fixedly connected with motor output revolving shaft and the outer ring connecting with support device, the inner ring with turn
Axis rotates synchronously.
5. a kind of pivoting microphone array apparatus for auditory localization according to claim 2, it is characterised in that when adopting
When with wireless transmission, wireless communication module is provided on rotation array frame, the signal of each microphone on rotation array frame
Module exports by wireless communication.
6. a kind of pivoting microphone array apparatus for auditory localization according to claim 1, it is characterised in that described
It is arranged radially sliding slot along rotation on rotation array frame, the microphone is connected in sliding slot by connector.
7. a kind of pivoting microphone array apparatus for auditory localization according to claim 6, it is characterised in that described
Microphone can slide in sliding slot, the different location that can be fixed on microphone in sliding slot by connector, change Mike
The radius of turn of wind.
8. a kind of pivoting microphone array apparatus for auditory localization according to claim 1, it is characterised in that described
Signal trigger device includes a laser signal transmitter and a laser signal receivers, and laser signal transmitter and laser are believed
The opposed setting of number receiver carries out signal connection in rotation array frame two sides, data collector and laser signal acquisition.
9. a kind of pivoting microphone array apparatus for auditory localization according to claim 8, it is characterised in that laser
Signal projector continuously emits laser and is received by laser signal receivers, when rotation array frame rotates to laser signal transmitter
Between laser signal transmitter, blocking laser signal receiver receives signal, laser signal receivers trigger data acquisition device
Acquire the voice data of current microphone on rotation array frame.
10. a kind of pivoting microphone array apparatus for auditory localization according to claim 9, it is characterised in that rotation
Array continual rotation driven by the motor, data collector is according to the speed automatic collection number of rotation array frame
According to.
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| CN201810851739.1A CN108983148A (en) | 2018-07-30 | 2018-07-30 | A kind of pivoting microphone array apparatus for auditory localization |
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| CN201810851739.1A CN108983148A (en) | 2018-07-30 | 2018-07-30 | A kind of pivoting microphone array apparatus for auditory localization |
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Cited By (4)
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| WO2019178626A1 (en) * | 2018-03-19 | 2019-09-26 | Seven Bel Gmbh | Apparatus, system and method for spatially locating sound sources |
| CN113156372A (en) * | 2021-04-07 | 2021-07-23 | 深圳鱼亮科技有限公司 | Multi-microphone array data transmission system based on reliable channel |
| CN113758696A (en) * | 2021-09-08 | 2021-12-07 | 北京航空航天大学 | Three-dimensional stereo sound signal acquisition device |
| US11425496B2 (en) * | 2020-05-01 | 2022-08-23 | International Business Machines Corporation | Two-dimensional sound localization with transformation layer |
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| CN113156372A (en) * | 2021-04-07 | 2021-07-23 | 深圳鱼亮科技有限公司 | Multi-microphone array data transmission system based on reliable channel |
| CN113156372B (en) * | 2021-04-07 | 2023-12-19 | 深圳鱼亮科技有限公司 | Multi-microphone array data transmission system based on reliable channel |
| CN113758696A (en) * | 2021-09-08 | 2021-12-07 | 北京航空航天大学 | Three-dimensional stereo sound signal acquisition device |
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