CN106772247A - A kind of terminal and sound localization method - Google Patents
A kind of terminal and sound localization method Download PDFInfo
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- CN106772247A CN106772247A CN201611083709.8A CN201611083709A CN106772247A CN 106772247 A CN106772247 A CN 106772247A CN 201611083709 A CN201611083709 A CN 201611083709A CN 106772247 A CN106772247 A CN 106772247A
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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)
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Abstract
The invention discloses a kind of terminal and sound localization method, the terminal includes：Acquisition module, acquisition module and locating module.Harvester is by default acoustic information of the Mike MIC array acquisitions from sound source in terminal；Wherein MIC arrays include at least 3 MIC.Acquisition module obtains the difference of the acoustic information that MIC array acquisitions are arrived.Locating module is positioned according to the difference of acoustic information to sound source.By embodiment of the present invention scheme, can gather the acoustic information of sound source by default MIC in terminal, and the difference value of the acoustic information collected according to different MIC calculates the orientation of sound source, realizes and is positioned by terminal-pair sound source, the demand of user is solved, Consumer's Experience sense is improve.
Description
Technical field
The present invention relates to terminal applies field, more particularly to a kind of terminal and sound localization method.
Background technology
At present, user needs to position sound source by sound in various occasions, to determine the position of sound source.Example
Such as, when waiting train at the train station, if it is possible to by train to blow a whistle sound how far apart from railway platform to determine current train, then may be used
So that obtain user carries out preparation of getting on the bus in the suitable time；If the position of school can be determined by the tinkle of bells in campus, can
To help where user is quickly found out school；In addition, for the bad user of hearing, if can be by vehicle whistle
Sound is positioned to vehicle, can also be reduced the bad user of hearing and the probability of traffic accident is occurred.But do not deposit still on the market at present
Instrument in this respect, needs person skilled exploitation related device or instrument badly, to solve the demand of active user.
The content of the invention
It is a primary object of the present invention to propose a kind of terminal and sound localization method, can be carried out by terminal-pair sound source
Positioning, solves the demand of user, improves Consumer's Experience sense.
To achieve the above object, the invention provides a kind of terminal, the terminal includes：Acquisition module, acquisition module and fixed
Position module.
Harvester, for by default acoustic information of the Mike MIC array acquisitions from sound source in terminal；Wherein,
MIC arrays include at least 3 MIC.
Acquisition module, the difference for obtaining the acoustic information that MIC array acquisitions are arrived.
Locating module, positions for the difference according to acoustic information to sound source.
Alternatively, acoustic information includes：Sound frequency.
The terminal also includes：Selecting module.
Selecting module, at least 3 MIC of the first sound frequency are collected for any selection from MIC arrays, and should
At least 3 MIC are defined as positioning MIC.
Alternatively, acoustic information also includes：Phase information.
Acquisition module obtain MIC array acquisitions to the difference of acoustic information include：
The sound that the phase information of the first sound frequency that the positioning MIC in MIC arrays is collected calculates sound source is arrived
Up to the phase difference of positioning MIC.
First sound cycle was obtained according to the first sound frequency.
The sound of phase difference and the first sound computation of Period sound source according to positioning MIC reaches the time difference of positioning MIC.
Alternatively, positioning MIC includes the first positioning MIC, the second positioning MIC and the 3rd positioning MIC.
The device also includes：Computing module and setup module.
Computing module, for before being positioned to sound source according to the difference of acoustic information, the sound according to sound source to be arrived
Sound up to the time difference calculating sound source of positioning MIC reaches the range difference of positioning MIC.
Setup module, for the distance between the first positioning MIC and the second positioning MIC difference to be defined as into the first range difference,
The poor second distance that is defined as of the distance between second positioning MIC and the 3rd positioning MIC is poor, and position MIC and the 3rd by first
The distance between positioning MIC difference is defined as the 3rd range difference.
Alternatively, locating module carries out positioning according to the difference of acoustic information to sound source includes：
In default fitting system, the position of the first positioning MIC, the second positioning MIC and the 3rd positioning MIC is determined；Its
Fitting has position assumption diagram of the MIC arrays in terminal in advance in middle fitting system.
Based on the position of the first positioning MIC, the second positioning MIC and the 3rd positioning MIC, it is fitted to up to the first positioning
The distance difference of the positioning of MIC and second MIC is the first hyperboloid of the first range difference；It is fitted to up to the second positioning MIC and the
The distance difference of three positioning MIC is the second hyperboloid of second distance difference；It is fixed with the described 3rd up to the first positioning MIC to be fitted to
The distance difference of position MIC is the 3rd hyperboloid of the 3rd range difference；
Obtain the first hyperboloid, the second hyperboloid and the 3rd bi-curved intersection point；
The intersection point is defined as position of the sound source in fitting system.
Alternatively, locating module is positioned to sound source according to the difference of acoustic information and also included：
In fitting system, the position of position and terminal according to sound source in fitting system in fitting system determines
The relative distance and orientation of sound source and terminal.
Alternatively, the terminal also includes：Display module.
Display module, for the relative distance and orientation of sound source and terminal to be included the display interface in terminal；With/
Or, the fit procedure of the system of fitting is included on the display interface of terminal.
Additionally, to achieve the above object, the invention allows for a kind of sound localization method, the method includes：
By default acoustic information of the Mike MIC array acquisitions from sound source in terminal；Wherein, MIC arrays include
At least 3 MIC；
Obtain the difference of the acoustic information that MIC array acquisitions are arrived；
Difference according to acoustic information is positioned to sound source.
Alternatively, acoustic information includes：Sound frequency.
The method also includes：Any selection collects at least 3 MIC of the first sound frequency from MIC arrays, and should
At least 3 MIC are defined as positioning MIC.
Alternatively, acoustic information also includes：Phase information.
Obtain MIC array acquisitions to the difference of acoustic information include：
The sound that the phase information of the first sound frequency that the positioning MIC in MIC arrays is collected calculates sound source is arrived
Up to the phase difference of positioning MIC；
First sound cycle was obtained according to the first sound frequency；
The sound of phase difference and the first sound computation of Period sound source according to positioning MIC reaches the time difference of positioning MIC.
Alternatively, positioning MIC includes the first positioning MIC, the second positioning MIC and the 3rd positioning MIC.
The method also includes：Before being positioned to sound source according to the difference of acoustic information, the sound according to sound source is arrived
Sound up to the time difference calculating sound source of positioning MIC reaches the range difference of positioning MIC；
The distance between first positioning MIC and the second positioning MIC difference are defined as the first range difference, MIC is positioned by second
It is poor with the poor second distances that are defined as of the distance between the 3rd positioning MIC, and by between the first positioning MIC and the 3rd positioning MIC
Range difference is defined as the 3rd range difference.
Alternatively, the difference according to acoustic information carries out positioning to sound source includes：
In default fitting system, the position of the first positioning MIC, the second positioning MIC and the 3rd positioning MIC is determined；Its
Fitting has position assumption diagram of the MIC arrays in the terminal in advance in middle fitting system；
Based on the position of the first positioning MIC, the second positioning MIC and the 3rd positioning MIC, it is fitted to up to the first positioning
The distance difference of the positioning of MIC and second MIC is the first hyperboloid of the first range difference；It is fitted to up to the second positioning MIC and the
The distance difference of three positioning MIC is the second hyperboloid of second distance difference；It is fitted to up to the first positioning MIC and the 3rd positioning
The distance difference of MIC is the 3rd hyperboloid of the 3rd range difference；
Obtain the first hyperboloid, the second hyperboloid and the 3rd bi-curved intersection point；
The intersection point is defined as position of the sound source in fitting system.
Alternatively, the difference according to acoustic information is positioned to sound source and also included：
In fitting system, the position of position and terminal according to sound source in fitting system in fitting system determines
The relative distance and orientation of sound source and terminal.
Alternatively, the method also includes：
The relative distance and orientation of sound source and terminal are included on the display interface of terminal；And/or, by the system of fitting
Fit procedure is displayed on the display interface of terminal.
The present invention proposes a kind of terminal and sound localization method, and the terminal includes：Acquisition module, acquisition module and positioning
Module.Harvester is by default acoustic information of the Mike MIC array acquisitions from sound source in terminal；Wherein in MIC arrays
Including at least 3 MIC.Acquisition module obtains the difference of the acoustic information that MIC array acquisitions are arrived.Locating module is according to acoustic information
Difference sound source is positioned.By embodiment of the present invention scheme, the sound of sound source can be gathered by the default MIC in terminal
Message cease, and the acoustic information collected according to different MIC difference value calculate sound source orientation, realize by terminal-pair sound
Source is positioned, and solves the demand of user, improves Consumer's Experience sense.
Brief description of the drawings
Fig. 1 is the hardware architecture diagram for realizing the optional mobile terminal of each embodiment one of the invention；
Fig. 2 is the wireless communication system schematic diagram of mobile terminal as shown in Figure 1；
Fig. 3 is the composition frame chart of the terminal of the embodiment of the present invention；
Fig. 4 is the sound localization method flow chart of the embodiment of the present invention；
Fig. 5 is the MIC installation site embodiment schematic diagrams of the embodiment of the present invention；
Fig. 6 is positioning MIC positions embodiment schematic diagram in the fitting system of the embodiment of the present invention；
Fig. 7 is the first hyperboloid embodiment schematic diagram in the fitting system of the embodiment of the present invention.
The realization of the object of the invention, functional characteristics and advantage will be described further referring to the drawings in conjunction with the embodiments.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The optional mobile terminal of each embodiment one of the invention is realized referring now to Description of Drawings.In follow-up description
In, using the suffix of such as " module ", " part " or " unit " for representing element only for being conducive to explanation of the invention,
Itself do not have specific meaning.Therefore, " module " can be used mixedly with " part ".
Mobile terminal can be implemented in a variety of manners.For example, the terminal described in the present invention can include such as moving
Phone, smart phone, notebook computer, digit broadcasting receiver, PDA (personal digital assistant), PAD (panel computer), PMP
The mobile terminal of (portable media player), guider etc. and such as numeral TV, desktop computer etc. are consolidated
Determine terminal.Hereinafter it is assumed that terminal is mobile terminal.However, it will be understood by those skilled in the art that, except being used in particular for movement
Outside the element of purpose, construction according to the embodiment of the present invention can also apply to the terminal of fixed type.
Fig. 1 is that the hardware configuration of the mobile terminal for realizing each embodiment of the invention is illustrated.
Mobile terminal 1 00 can include wireless communication unit 110, A/V (audio/video) input block 120, user input
Unit 130, sensing unit 140, output unit 150, memory 160, interface unit 170, controller 180 and power subsystem 190
Etc..Fig. 1 shows the mobile terminal with various assemblies, it should be understood that being not required for implementing all groups for showing
Part.More or less component can alternatively be implemented.The element of mobile terminal will be discussed in more detail below.
Wireless communication unit 110 generally includes one or more assemblies, and it allows mobile terminal 1 00 and wireless communication system
Or the radio communication between network.For example, wireless communication unit can include broadcasting reception module 111, mobile communication module
112nd, at least one of wireless Internet module 113, short range communication module 114 and location information module 115.
Broadcasting reception module 111 receives broadcast singal and/or broadcast via broadcast channel from external broadcast management server
Relevant information.Broadcast channel can include satellite channel and/or terrestrial channel.Broadcast management server can be generated and sent
The broadcast singal and/or broadcast related information generated before the server or reception of broadcast singal and/or broadcast related information
And send it to the server of terminal.Broadcast singal can include TV broadcast singals, radio signals, data broadcasting
Signal etc..And, broadcast singal may further include the broadcast singal combined with TV or radio signals.Broadcast phase
Pass information can also be provided via mobile communications network, and in this case, broadcast related information can be by mobile communication mould
Block 112 is received.Broadcast singal can exist in a variety of manners, for example, it can be with the electronics of DMB (DMB)
The form of program guide (EPG), the electronic service guidebooks (ESG) of digital video broadcast-handheld (DVB-H) etc. and exist.Broadcast
Receiver module 111 can receive signal and broadcast by using various types of broadcast systems.Especially, broadcasting reception module 111
Can be wide by using such as multimedia broadcasting-ground (DMB-T), DMB-satellite (DMB-S), digital video
Broadcast-hand-held (DVB-H), forward link media (MediaFLO@) Radio Data System, received terrestrial digital broadcasting integrated service
Etc. (ISDB-T) digit broadcasting system receives digital broadcasting.Broadcasting reception module 111 may be constructed such that and be adapted to provide for extensively
Broadcast the various broadcast systems and above-mentioned digit broadcasting system of signal.Via broadcasting reception module 111 receive broadcast singal and/
Or broadcast related information can be stored in memory 160 (or other types of storage medium).
Mobile communication module 112 sends radio signals to base station (for example, access point, node B etc.), exterior terminal
And at least one of server and/or receive from it radio signal.Such radio signal can be logical including voice
Words signal, video calling signal or the various types of data for sending and/or receiving according to text and/or Multimedia Message.
Wireless Internet module 113 supports the Wi-Fi (Wireless Internet Access) of mobile terminal.The module can be internally or externally
It is couple to terminal.Wi-Fi (Wireless Internet Access) technology involved by the module can include WLAN (WLAN) (Wi-Fi), Wibro
(WiMAX), Wimax (worldwide interoperability for microwave accesses), HSDPA (high-speed downlink packet access) etc..
Short range communication module 114 is the module for supporting junction service.Some examples of short-range communication technology include indigo plant
ToothTM, radio frequency identification (RFID), Infrared Data Association (IrDA), ultra wide band (UWB), purple honeybeeTMEtc..
Location information module 115 is the module for checking or obtaining the positional information of mobile terminal.Location information module
Typical case be GPS (global positioning system).According to current technology, GPS module 115 is calculated and comes from three or more satellites
Range information and correct time information and the Information application triangulation for calculating, so as to according to longitude, latitude
Highly accurately calculate three-dimensional current location information.Currently, defended using three for calculating the method for position and temporal information
Star and the position that is calculated by using other satellite correction and the error of temporal information.Additionally, GPS module 115
Can be by Continuous plus current location information in real time come calculating speed information.
A/V input blocks 120 are used to receive audio or video signal.A/V input blocks 120 can include the He of camera 121
Microphone 1220, the static map that 121 pairs, camera is obtained in Video Capture pattern or image capture mode by image capture apparatus
The view data of piece or video is processed.Picture frame after treatment may be displayed on display unit 151.At camera 121
Picture frame after reason can be stored in memory 160 (or other storage mediums) or carried out via wireless communication unit 110
Send, two or more cameras 1210 can be provided according to the construction of mobile terminal.Microphone 122 can be in telephone relation mould
Sound (voice data) is received via microphone in formula, logging mode, speech recognition mode etc. operational mode, and can be by
Such acoustic processing is voice data.Audio (voice) data after treatment can be changed in the case of telephone calling model
For the form that can be sent to mobile communication base station via mobile communication module 112 is exported.Microphone 122 can implement all kinds
Noise eliminate (or suppress) algorithm eliminating (or suppression) in the noise for receiving and producing during sending audio signal or
Person disturbs.
User input unit 130 can generate key input data to control each of mobile terminal according to the order of user input
Plant operation.User input unit 130 allows the various types of information of user input, and can include keyboard, metal dome, touch
Plate (for example, detection due to being touched caused by resistance, pressure, electric capacity etc. change sensitive component), roller, rocking bar etc.
Deng.Especially, when touch pad is superimposed upon on display unit 151 in the form of layer, touch-screen can be formed.
Sensing unit 140 detects the current state of mobile terminal 1 00, (for example, mobile terminal 1 00 opens or closes shape
State), the presence or absence of the contact (that is, touch input) of the position of mobile terminal 1 00, user for mobile terminal 1 00, mobile terminal
The acceleration or deceleration movement of 100 orientation, mobile terminal 1 00 and direction etc., and generate for controlling mobile terminal 1 00
The order of operation or signal.For example, when mobile terminal 1 00 is embodied as sliding-type mobile phone, sensing unit 140 can be sensed
The sliding-type phone is opened or closed.In addition, sensing unit 140 can detect power subsystem 190 whether provide electric power or
Whether person's interface unit 170 couples with external device (ED).Sensing unit 140 can will be combined below including proximity transducer 1410
Touch-screen is described to this.
Interface unit 170 is connected the interface that can pass through with mobile terminal 1 00 as at least one external device (ED).For example,
External device (ED) can include wired or wireless head-band earphone port, external power source (or battery charger) port, wired or nothing
Line FPDP, memory card port, the port for connecting the device with identification module, audio input/output (I/O) end
Mouth, video i/o port, ear port etc..Identification module can be that storage uses each of mobile terminal 1 00 for verifying user
Kind of information and subscriber identification module (UIM), client identification module (SIM), Universal Subscriber identification module (USIM) can be included
Etc..In addition, the device (hereinafter referred to as " identifying device ") with identification module can take the form of smart card, therefore, know
Other device can be connected via port or other attachment means with mobile terminal 1 00.Interface unit 170 can be used for reception and come from
The input (for example, data message, electric power etc.) of the external device (ED) and input that will be received is transferred in mobile terminal 1 00
One or more elements can be used for transmitting data between mobile terminal and external device (ED).
In addition, when mobile terminal 1 00 is connected with external base, interface unit 170 can serve as allowing by it by electricity
Power provides to the path of mobile terminal 1 00 from base or can serve as allowing the various command signals being input into from base to pass through it
It is transferred to the path of mobile terminal.Be can serve as recognizing that mobile terminal is from the various command signals or electric power of base input
The no signal being accurately fitted within base.Output unit 150 is configured to provide defeated with vision, audio and/or tactile manner
Go out signal (for example, audio signal, vision signal, alarm signal, vibration signal etc.).Output unit 150 can include display
Unit 151, dio Output Modules 152, alarm unit 153 etc..
Display unit 151 may be displayed on the information processed in mobile terminal 1 00.For example, when mobile terminal 1 00 is in electricity
During words call mode, display unit 151 can show and converse or other communicate (for example, text messaging, multimedia file
Download etc.) related user interface (UI) or graphic user interface (GUI).When mobile terminal 1 00 is in video calling pattern
Or during image capture mode, display unit 151 can show the image of capture and/or the image of reception, show video or figure
UI or GUI of picture and correlation function etc..
Meanwhile, when display unit 151 and touch pad in the form of layer it is superposed on one another to form touch-screen when, display unit
151 can serve as input unit and output device.Display unit 151 can include liquid crystal display (LCD), thin film transistor (TFT)
In LCD (TFT-LCD), Organic Light Emitting Diode (OLED) display, flexible display, three-dimensional (3D) display etc. at least
It is a kind of.Some in these displays may be constructed such that transparence to allow user to be watched from outside, and this is properly termed as transparent
Display, typical transparent display can be, for example, TOLED (transparent organic light emitting diode) display etc..According to specific
Desired implementation method, mobile terminal 1 00 can include two or more display units (or other display devices), for example, moving
Dynamic terminal can include outernal display unit (not shown) and inner display unit (not shown).Touch-screen can be used to detect touch
Input pressure and touch input position and touch input area.
Dio Output Modules 152 can mobile terminal be in call signal reception pattern, call mode, logging mode,
It is that wireless communication unit 110 is received or in memory 160 when under the isotypes such as speech recognition mode, broadcast reception mode
The voice data transducing audio signal of middle storage and it is output as sound.And, dio Output Modules 152 can be provided and movement
The audio output (for example, call signal receives sound, message sink sound etc.) of the specific function correlation that terminal 100 is performed.
Dio Output Modules 152 can include loudspeaker, buzzer etc..
Alarm unit 153 can provide output and be notified to mobile terminal 1 00 with by event.Typical event can be with
Including calling reception, message sink, key signals input, touch input etc..In addition to audio or video is exported, alarm unit
153 can in a different manner provide output with the generation of notification event.For example, alarm unit 153 can be in the form of vibrating
Output is provided, when calling, message or some other entrance communication (incoming communication) are received, alarm list
Unit 153 can provide tactile output (that is, vibrating) to notify to user.Exported by providing such tactile, even if
When in pocket of the mobile phone of user in user, user also can recognize that the generation of various events.Alarm unit 153
The output of the generation of notification event can be provided via display unit 151 or dio Output Modules 152.
Memory 160 can store software program for the treatment and control operation performed by controller 180 etc., Huo Zheke
Temporarily to store oneself data (for example, telephone directory, message, still image, video etc.) through exporting or will export.And
And, memory 160 can store the vibration of various modes on being exported when touching and being applied to touch-screen and audio signal
Data.
Memory 160 can include the storage medium of at least one type, and the storage medium includes flash memory, hard disk, many
Media card, card-type memory (for example, SD or DX memories etc.), random access storage device (RAM), static random-access storage
Device (SRAM), read-only storage (ROM), Electrically Erasable Read Only Memory (EEPROM), programmable read only memory
(PROM), magnetic storage, disk, CD etc..And, mobile terminal 1 00 can perform memory with by network connection
The network storage device cooperation of 160 store function.
The overall operation of the generally control mobile terminal of controller 180.For example, controller 180 is performed and voice call, data
Communication, video calling etc. related control and treatment.In addition, controller 180 can be included for reproducing (or playback) many matchmakers
The multi-media module 1810 of volume data, multi-media module 1810 can be constructed in controller 180, or can be structured as and control
Device processed 180 is separated.Controller 180 can be with execution pattern identifying processing, the handwriting input that will be performed on the touchscreen or figure
Piece draws input and is identified as character or image.
Power subsystem 190 receives external power or internal power under the control of controller 180 and provides operation each unit
Appropriate electric power needed for part and component.
Various implementation methods described herein can be with use such as computer software, hardware or its any combination of calculating
Machine computer-readable recording medium is implemented.Implement for hardware, implementation method described herein can be by using application-specific IC
(ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), scene can
Programming gate array (FPGA), processor, controller, microcontroller, microprocessor, it is designed to perform function described herein
At least one in electronic unit is implemented, and in some cases, such implementation method can be implemented in controller 180.
For software implementation, the implementation method of such as process or function can with allow to perform the single of at least one function or operation
Software module is implemented.Software code can be come by the software application (or program) write with any appropriate programming language
Implement, software code can be stored in memory 160 and performed by controller 180.
So far, oneself according to its function through describing mobile terminal.Below, for the sake of brevity, will description such as folded form,
Slide type mobile terminal in various types of mobile terminals of board-type, oscillating-type, slide type mobile terminal etc. is used as showing
Example.Therefore, the present invention can be applied to any kind of mobile terminal, and be not limited to slide type mobile terminal.
Mobile terminal 1 00 as shown in Figure 1 may be constructed such that using via frame or packet transmission data it is all if any
Line and wireless communication system and satellite-based communication system are operated.
The communication system that mobile terminal wherein of the invention can be operated is described referring now to Fig. 2.
Such communication system can use different air interface and/or physical layer.For example, used by communication system
Air interface includes such as frequency division multiple access (FDMA), time division multiple acess (TDMA), CDMA (CDMA) and universal mobile communications system
System (UMTS) (especially, Long Term Evolution (LTE)), global system for mobile communications (GSM) etc..As non-limiting example, under
The description in face is related to cdma communication system, but such teaching is equally applicable to other types of system.
With reference to Fig. 2, cdma wireless communication system can include multiple mobile terminal 1s 00, multiple base station (BS) 270, base station
Controller (BSC) 275 and mobile switching centre (MSC) 280.MSC280 is configured to and Public Switched Telephony Network (PSTN)
290 form interface.MSC280 is also structured to form interface with the BSC275 that can be couple to base station 270 via back haul link.
If any one in the interface that back haul link can be known according to Ganji is constructed, the interface includes such as E1/T1, ATM, IP,
PPP, frame relay, HDSL, ADSL or xDSL.It will be appreciated that system can include multiple BSC2750 as shown in Figure 2.
Each BS270 can service one or more subregions (or region), by multidirectional antenna or the day of sensing specific direction
Each subregion of line covering is radially away from BS270.Or, each subregion can be by two or more for diversity reception
Antenna is covered.Each BS270 may be constructed such that the multiple frequency distribution of support, and the distribution of each frequency has specific frequency spectrum
(for example, 1.25MHz, 5MHz etc.).
What subregion and frequency were distributed intersects can be referred to as CDMA Channel.BS270 can also be referred to as base station transceiver
System (BTS) or other equivalent terms.In this case, term " base station " can be used for broadly representing single
BSC275 and at least one BS270.Base station can also be referred to as " cellular station ".Or, each subregion of specific BS270 can be claimed
It is multiple cellular stations.
As shown in Figure 2, broadcast singal is sent to broadcsting transmitter (BT) 295 mobile terminal operated in system
100.Broadcasting reception module 111 as shown in Figure 1 is arranged at mobile terminal 1 00 to receive the broadcast sent by BT295
Signal.In fig. 2 it is shown that several global positioning system (GPS) satellites 300.Satellite 300 helps position multiple mobile terminals
At least one of 100.
In fig. 2, multiple satellites 300 are depicted, it is understood that be, it is possible to use any number of satellite obtains useful
Location information.GPS module 115 as shown in Figure 1 is generally configured to coordinate with satellite 300 to be believed with obtaining desired positioning
Breath.Substitute GPS tracking techniques or outside GPS tracking techniques, it is possible to use other of the position of mobile terminal can be tracked
Technology.In addition, at least one gps satellite 300 can optionally or additionally process satellite dmb transmission.
Used as a typical operation of wireless communication system, BS270 receives the reverse link from various mobile terminal 1s 00
Signal.Mobile terminal 1 00 generally participates in call, information receiving and transmitting and other types of communication.Each of the reception of certain base station 270 is anti-
Processed in specific BS270 to link signal.The data of acquisition are forwarded to the BSC275 of correlation.BSC provides call
Resource allocation and the mobile management function of the coordination including the soft switching process between BS270.The number that BSC275 will also be received
According to MSC280 is routed to, it provides the extra route service for forming interface with PSTN290.Similarly, PSTN290 with
MSC280 forms interface, and MSC and BSC275 form interface, and BSC275 correspondingly controls BS270 with by forward link signals
It is sent to mobile terminal 1 00.
Based on above-mentioned optional mobile terminal hardware configuration and communication system, the inventive method each embodiment is proposed.
As shown in figure 3, first embodiment of the invention proposes a kind of terminal 1, the terminal includes：Acquisition module 11, acquisition
Module 12 and locating module 13.
Harvester 11, for by default acoustic information of the Mike MIC array acquisitions from sound source in terminal；Its
In, MIC arrays include at least 3 MIC.
Acquisition module 12, the difference for obtaining the acoustic information that MIC array acquisitions are arrived.
Locating module 13, positions for the difference according to acoustic information to sound source.
Alternatively, acoustic information includes：Sound frequency.
The terminal also includes：Selecting module 14.
Selecting module 14, at least 3 MIC of the first sound frequency are collected for any selection from MIC arrays, and will
At least 3 MIC are defined as positioning MIC.
Alternatively, acoustic information also includes：Phase information.
Acquisition module 12 obtain MIC array acquisitions to the difference of acoustic information include：
The sound that the phase information of the first sound frequency that the positioning MIC in MIC arrays is collected calculates sound source is arrived
Up to the phase difference of positioning MIC.
First sound cycle was obtained according to the first sound frequency.
The sound of phase difference and the first sound computation of Period sound source according to positioning MIC reaches the time difference of positioning MIC.
Alternatively, positioning MIC includes the first positioning MIC, the second positioning MIC and the 3rd positioning MIC.
The terminal also includes：Computing module 15 and setup module 16.
Computing module 15, for before being positioned to sound source according to the difference of acoustic information, according to the sound of sound source
The sound for reaching the time difference calculating sound source of positioning MIC reaches the range difference of positioning MIC.
Setup module 16, for the distance between the first positioning MIC and the second positioning MIC difference to be defined as into the first distance
Difference, is defined as second distance poor by the second positioning MIC and the 3rd positioning the distance between MIC difference, and positions MIC and the by first
The distance between three positioning MIC difference is defined as the 3rd range difference.
Alternatively, locating module 13 carries out positioning according to the difference of acoustic information to sound source includes：
In default fitting system, the position of the first positioning MIC, the second positioning MIC and the 3rd positioning MIC is determined；Its
Fitting has position assumption diagram of the MIC arrays in terminal in advance in middle fitting system.
Based on the position of the first positioning MIC, the second positioning MIC and the 3rd positioning MIC, it is fitted to up to the first positioning
The distance difference of the positioning of MIC and second MIC is the first hyperboloid of the first range difference；It is fitted to up to the second positioning MIC and the
The distance difference of three positioning MIC is the second hyperboloid of second distance difference；It is fixed with the described 3rd up to the first positioning MIC to be fitted to
The distance difference of position MIC is the 3rd hyperboloid of the 3rd range difference；
Obtain the first hyperboloid, the second hyperboloid and the 3rd bi-curved intersection point；
The intersection point is defined as position of the sound source in fitting system.
Alternatively, locating module 13 is positioned to sound source according to the difference of acoustic information and also included：
In fitting system, the position of position and terminal according to sound source in fitting system in fitting system determines
The relative distance and orientation of sound source and terminal.
Alternatively, the terminal also includes：Display module 17.
Display module 17, for the relative distance and orientation of sound source and terminal to be included the display interface in terminal；With/
Or, the fit procedure of the system of fitting is included on the display interface of terminal.
Additionally, to achieve the above object, the invention allows for a kind of sound localization method, as shown in Figure 4, it is necessary to illustrate
, any embodiment in the method embodiment is applied to above-mentioned device embodiment, repeated no more in text.The method bag
Include S101-S103：
S101, by default acoustic information of the Mike MIC array acquisitions from sound source in terminal；Wherein, in MIC arrays
Including at least 3 MIC.
In embodiments of the present invention, the need for being positioned to sound source by source sound to solve active user to need
Ask, embodiment of the present invention scheme gives the method for carrying out auditory localization by terminal (such as mobile phone).Due to various terminals, example
Such as, mobile phone, Ipad, wearable device, portable notebook computer etc. have become the free articles under passenger of numerous users, by sound source
Positioning is integrated in these terminals, realizes that auditory localization is i.e. conveniently and light and handy by these terminals, is not required to user and is further added by taking
Band other instruments, improve the experience sense of user.
In embodiments of the present invention, it is necessary to install multiple in terminal in advance before carrying out auditory localization by terminal
MIC, is acquired with will pass through the plurality of MIC to the acoustic information of sound source.It should be noted that in order to accurate status sound source is fixed
Position, the plurality of MIC is at least 3.In addition, the plurality of MIC may be mounted at any position of terminal, for its particular location
Do not limit.It should be noted that because the position difference of each MIC determines that the acoustic information that it is received is also different, and
And the embodiment of the present invention scheme difference value of acoustic information that is received with each MIC carries out auditory localization, it is poor
Different value is more big, calculates more accurate.Therefore, sound source is positioned in order to exact, when the position of each MIC is set, as far as possible
Disperse the location comparison between the plurality of MIC.Alternatively, 4 MIC can be set in terminal, and 4 MIC difference are very
Extremely on four frames of terminal, as shown in Figure 5.
In embodiments of the present invention, MIC is mature technology to the acquisition method of acoustic information, be will not be repeated here, at this
In embodiment, sound can be acquired and be processed using any method that can implement and algorithm, be not limited herein.Separately
Outward, before the embodiment of the present invention is implemented, in addition it is also necessary to which the sound gathered to MIC carries out denoising, desired to isolate
Main sound, the technology is also mature technology, be will not be repeated here, and in the present embodiment, can be able to be implemented using any
Method and algorithm carry out denoising to the acoustic information for gathering, and are not limited herein.
Alternatively, acoustic information includes：Sound frequency.
The method also includes：Any selection collects at least 3 MIC of the first sound frequency from MIC arrays, and should
At least 3 MIC are defined as positioning MIC.
In embodiments of the present invention, because different frequencies is different to the ride-through capability of barrier, frequency is lower to pass through
Ability is stronger, and frequency is higher, and ride-through capability is poorer.Therefore, because the MIC of diverse location, when the transfer voice of sound source is to terminal
Afterwards, the MIC not blocked typically receives almost most of frequency of sound source, and for by terminal in itself block that
For a little MIC, due to this barrier of terminal so that some sound frequencies cannot be transferred to and receive these MIC that terminal is blocked
In.Based on the principle, then each MIC in the MIC arrays being arranged in terminal can receive the sound of the different frequency range that sound source sends
Voice frequency, therefore, it is necessary to determine the sound for itself being collected respectively after each MIC collects the sound frequency from sound source
The frequency range of voice frequency.
In embodiments of the present invention, due to needing the phase information according to the source sound of collection to calculate in following proposal
Source sound reaches the phase difference of each MIC, and the time of each MIC is further reached according to phase difference acquisition source sound
Difference, the range difference that source sound reaches each MIC is calculated according to the time difference, and the position of source sound is fitted according to the range difference
Put, therefore, the phase difference that calculating source sound reaches each MIC is the basis of embodiment of the present invention scheme.But, phase difference is
For based on same frequency, its phase difference cannot be determined for different frequencies, therefore each is reached source sound is calculated
It needs to be determined that going out a sound frequency as with reference to basis before the phase difference of MIC.In the embodiment of the present invention, at each MIC points
Do not determine on the basis of the frequency range of sound frequency for itself being collected, the first sound frequency can be selected to make from these frequency ranges
For this is with reference to basis.It should be noted that first sound frequency can be any one frequency in the sound frequency of sound source,
But can just determine the particular location of sound source, therefore first sound because embodiment of the present invention scheme needs at least three MIC
Voice frequency needs to be at least three MIC are collected in MIC arrays frequency.On the basis of the first frequency is determined, can
At least 3 MIC for collecting first sound frequency are selected with any from MIC arrays, and at least 3 MIC are determined
It is positioning MIC.Positioning MIC actually used MIC for arriving when being specific bit.Alternatively, positioning MIC includes：First positioning MIC,
Second positioning MIC and the 3rd positioning MIC.
In embodiments of the present invention, when there is the MIC of more than 3 in terminal, can using wherein any three MIC as
One group of positioning MIC, and the sound source position that different groups of positioning MIC is oriented is averaged or be fitted its center,
To obtain more accurately sound source position information.
S102, the difference for obtaining the acoustic information that MIC array acquisitions are arrived.
In embodiments of the present invention, after the first sound frequency is determined just can according to obtain and first sound
The corresponding phase information of frequency calculates the phase difference that source sound reaches each positioning MIC.Specifically can be by with lower section
Case is realized.
Alternatively, acoustic information also includes：Phase information.
The difference for obtaining the acoustic information that MIC array acquisitions are arrived includes S201-S203：
The phase information of the first sound frequency that S201, the positioning MIC in MIC arrays are collected calculates the sound of sound source
Sound reaches the phase difference of positioning MIC.
In embodiments of the present invention, the phase information corresponding with the first sound frequency for different positioning MIC being collected
Difference is sought respectively, for example, the second phase letter that the first phase information of the first positioning MIC collections is gathered with the second positioning MIC
It is poor that breath asks difference to obtain first phase；By the second phase information of the second positioning MIC collections and the 3rd of the 3rd positioning MIC collections
It is poor that phase information asks difference to obtain second phase；By the first phase information of the first positioning MIC collections and the 3rd positioning MIC collections
Third phase information ask difference obtain third phase potential difference.
S202, according to the first sound frequency obtain the first sound cycle.
In embodiments of the present invention, because frequency is the inverse in cycle, therefore, ask inverse just may be used first sound frequency
To obtain the corresponding first sound cycle.
S203, according to positioning MIC phase difference and the first sound computation of Period sound source sound reach positioning MIC when
Between it is poor.
In embodiments of the present invention, on the basis of the known sound cycle (i.e. the first sound cycle), by phase difference just
The different period position residing for the sound wave of the first sound frequency that different positioning MIC are obtained can be obtained, according to the difference
Period position just can determine sound source sound reach positioning MIC time difference.
S103, sound source is positioned according to the difference of acoustic information.
In embodiments of the present invention, the sound for obtaining sound source by above scheme was reached after the time difference of positioning MIC, just
Source of students can be located according to the time difference.
The method also includes：Before being positioned to sound source according to the difference of acoustic information, the sound according to sound source is arrived
Sound up to the time difference calculating sound source of positioning MIC reaches the range difference of positioning MIC；
The distance between first positioning MIC and the second positioning MIC difference are defined as the first range difference, MIC is positioned by second
It is poor with the poor second distances that are defined as of the distance between the 3rd positioning MIC, and by between the first positioning MIC and the 3rd positioning MIC
Range difference is defined as the 3rd range difference.
In embodiments of the present invention, after the time difference of sound arrival positioning MIC for obtaining sound source, according to away from discrete time
Formula S=VT, wherein, S is distance, and V is speed, and T is the time, and (the aerial propagation speed of sound can be taken here in the velocity of sound
Degree 340m/s) and in the case of the time difference is known, the sound that just can calculate sound source reaches each range difference for positioning MIC.
For the ease of follow-up calculating, the first above-mentioned range difference, second distance difference and the 3rd range difference can be respectively defined as.
Alternatively, the difference according to acoustic information carries out positioning to sound source includes S301-S303：
S301, in default fitting system, determine the first positioning MIC, second positioning MIC and the 3rd positioning MIC position
Put；Fitting has position assumption diagram of the MIC arrays in the terminal in advance wherein in fitting system.
In embodiments of the present invention, in order to be accurately positioned to sound source according to above-mentioned range information, can build in advance
Vertical fitting system, has fitted the position and structure figure of terminal, and fitted MIC in advance in the fitting system
Each MIC in array position assumption diagram on the terminal.The fitting system can be obtained according to related modeling algorithm modeling
.
It was used as positioning MIC, it is necessary to be determined in fitting system before continuing to position to sound source by the fitting system
Particular locations of each MIC in terminal.As shown in Figure 6.
S302, by first positioning MIC, second positioning MIC and the 3rd positioning MIC position based on, be fitted to up to first
The distance difference of the positioning of positioning MIC and second MIC is the first hyperboloid of the first range difference；It is fitted to up to the second positioning MIC
Distance difference with the 3rd positioning MIC is the second poor hyperboloid of second distance；It is fitted to up to the first positioning MIC and the 3rd and determines
The distance difference of position MIC is the 3rd hyperboloid of the 3rd range difference.
In embodiments of the present invention, the sound for obtaining sound source by such scheme reaches the range difference of each positioning MIC,
MIC is positioned for any two, we just can get multiple points that two range differences of the position of MIC are definite value.Example
Such as, illustrated by taking the first positioning MIC and the second positioning MIC as an example, when it is determined that to the first positioning MIC's and the second positioning MIC
After range difference is the first above-mentioned range difference, just can acquire between the distance of the positioning of the first positioning MIC and second MIC
Difference is multiple points of the first range difference.Due to being constant to two absolute values of the difference of the distance of fixed point in one plane
The track of point be referred to as hyperbola, therefore be the rail of the point of constant to two absolute values of the difference of the distance of fixed point in space
Mark is referred to as hyperboloid.In embodiments of the present invention, the position of the first positioning MIC and the second positioning MIC is considered as two fixed points,
Difference to two distances of fixed point is the first above-mentioned range difference, therefore, the first positioning MIC just can be acquired by the principle
The range difference for positioning MIC with second is the set of the point of the first range difference, and the collection is combined into a hyperboloid, i.e., above-mentioned first pair
Curved surface, sound source position inherently falls on first hyperboloid, as shown in Figure 7.Similarly, determined according to the second positioning MIC and the 3rd
The position of position MIC and second distance difference can also be fitted to up to the second positioning MIC and be with the distance difference of the 3rd positioning MIC
Second hyperboloid of second distance difference, can be with according to the position and the 3rd range difference that the first positioning MIC positions MIC with the 3rd
The distance difference being fitted to up to the first positioning MIC and the 3rd positioning MIC is the 3rd hyperboloid of the 3rd range difference, sound source position
Can equally fall on the second hyperboloid and the 3rd hyperboloid.
S303, the first hyperboloid of acquisition, the second hyperboloid and the 3rd bi-curved intersection point.
In embodiments of the present invention, cross one another three hyperboloids just can be obtained by the fitting of step S302, by
Can draw a curve in two surface intersections, three curved surfaces inherently compared to a bit, such that it is able to obtain the first hyperboloid,
Second hyperboloid and the 3rd bi-curved intersection point.
S304, the intersection point is defined as position of the sound source in fitting system.
In embodiments of the present invention, because the sound source of the first positioning MIC, the second positioning MIC and the 3rd positioning MIC is same
Sound source, then this intersection point is the position of source of students, therefore the intersection point can be defined as into position of the sound source in fitting system.
Alternatively, the difference according to acoustic information is positioned to sound source and also included：
In fitting system, the position of position and terminal according to sound source in fitting system in fitting system determines
The relative distance and orientation of sound source and terminal.
In embodiments of the present invention, after fitting position of the sound source in fitting system by aforementioned schemes, just can be with
The distance and bearing of the position relative to terminal location of the source of students is determined according to position of the terminal in you and system.
Alternatively, the method also includes：
The relative distance and orientation of sound source and terminal are included on the display interface of terminal；And/or, by the system of fitting
Fit procedure is displayed on the display interface of terminal.
In embodiments of the present invention, the specific location information of sound source is well understood to for the ease of user, will can be passed through
The sound source that calculates of simulation to present terminal distance and residing orientation with numeral, alphabetical, figure and/or three-dimensional display
Form shows, improves the experience sense of user.In addition, the fit procedure of the system of fitting can also be shown in other embodiments
Show on the display interface of terminal so that user's viewing is more directly perceived, further improves the experience sense of user.
The present invention proposes a kind of terminal and sound localization method, and the terminal includes：Acquisition module, acquisition module and positioning
Module.Harvester is by default acoustic information of the Mike MIC array acquisitions from sound source in terminal；Wherein in MIC arrays
Including at least 3 MIC.Acquisition module obtains the difference of the acoustic information that MIC array acquisitions are arrived.Locating module is according to acoustic information
Difference sound source is positioned.By embodiment of the present invention scheme, the sound of sound source can be gathered by the default MIC in terminal
Message cease, and the acoustic information collected according to different MIC difference value calculate sound source orientation, realize by terminal-pair sound
Source is positioned, and solves the demand of user, improves Consumer's Experience sense.
It should be noted that herein, term " including ", "comprising" or its any other variant be intended to non-row
His property is included, so that process, method, article or device including a series of key elements not only include those key elements, and
And also include other key elements being not expressly set out, or also include for this process, method, article or device institute are intrinsic
Key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including this
Also there is other identical element in the process of key element, method, article or device.
The embodiments of the present invention are for illustration only, and the quality of embodiment is not represented.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably implementation method.Based on such understanding, technical scheme is substantially done to prior art in other words
The part for going out contribution can be embodied in the form of software product, and the computer software product is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), including some instructions are used to so that a station terminal equipment (can be mobile phone, computer, clothes
Business device, air-conditioner, or network equipment etc.) perform method described in each embodiment of the invention.
The preferred embodiments of the present invention are these are only, the scope of the claims of the invention is not thereby limited, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of terminal, it is characterised in that the terminal includes：Acquisition module, acquisition module and locating module；
The harvester, for by default acoustic information of the Mike MIC array acquisitions from sound source in terminal；Wherein,
The MIC arrays include at least 3 MIC；
The acquisition module, the difference for obtaining the acoustic information that the MIC array acquisitions are arrived；
The locating module, positions for the difference according to the acoustic information to the sound source.
2. terminal as claimed in claim 1, it is characterised in that the acoustic information includes：Sound frequency；
The terminal also includes：Selecting module；
The selecting module, at least 3 MIC of the first sound frequency are collected for any selection from the MIC arrays, and
At least 3 MIC are defined as to position MIC.
3. terminal as claimed in claim 2, it is characterised in that the acoustic information also includes：Phase information；
The acquisition module obtain the MIC array acquisitions to the difference of the acoustic information include：
Described in the phase information of first sound frequency that the positioning MIC in the MIC arrays is collected is calculated
The sound of sound source reaches the phase difference of the positioning MIC；
First sound cycle was obtained according to first sound frequency；
The sound of sound source reaches the positioning according to the phase difference and the first sound computation of Period of the positioning MIC
The time difference of MIC.
4. terminal as claimed in claim 3, it is characterised in that the positioning MIC includes the first positioning MIC, the second positioning MIC
With the 3rd positioning MIC；
The terminal also includes：Computing module and setup module；
The computing module, for before the difference according to the acoustic information is positioned to the sound source, according to described
The sound of sound source reaches the range difference of the sound arrival positioning MIC of the time difference calculating sound source of the positioning MIC；
The setup module, for the distance between the described first positioning MIC and the second positioning MIC difference to be defined as into the first distance
Difference, the poor second distance that is defined as of the distance between the described second positioning MIC and the 3rd positioning MIC is poor, and described first is determined
The distance between the positioning of position MIC and the 3rd MIC difference is defined as the 3rd range difference.
5. terminal as claimed in claim 4, it is characterised in that the locating module is according to the difference of the acoustic information to institute
Stating sound source and carrying out positioning includes：
In default fitting system, determine that the first positioning MIC, the second positioning MIC and the described 3rd position MIC's
Position；Fitting has position assumption diagram of the MIC arrays in the terminal in advance in wherein described fitting system；
Based on the position of the described first positioning MIC, the second positioning MIC and the 3rd positioning MIC, it is fitted to up to institute
State the first hyperboloid that the first positioning MIC is first range difference with the distance difference of the described second positioning MIC；It is fitted to
Up to the described second positioning MIC the second poor hyperboloid of the second distance is with the distance difference of the described 3rd positioning MIC；Intend
Close and reach the 3rd hyperbolic that the first positioning MIC is the 3rd range difference with the distance difference of the described 3rd positioning MIC
Face；
Obtain first hyperboloid, second hyperboloid and the 3rd bi-curved intersection point；
The intersection point is defined as position of the sound source in the fitting system；
The position of position and the terminal according to the sound source in the fitting system in the fitting system determines
The relative distance and orientation of the sound source and the terminal.
6. a kind of sound localization method, it is characterised in that methods described includes：
By default acoustic information of the Mike MIC array acquisitions from sound source in terminal；Wherein, the MIC arrays include
At least 3 MIC；
Obtain the difference of the acoustic information that the MIC array acquisitions are arrived；
Difference according to the acoustic information is positioned to the sound source.
7. target students method as claimed in claim 6, it is characterised in that the acoustic information includes：Sound frequency；
Methods described also includes：Any selection collects at least 3 MIC of the first sound frequency from the MIC arrays, and will
At least 3 MIC are defined as positioning MIC.
8. target students method as claimed in claim 6, it is characterised in that the acoustic information also includes：Phase information；
It is described obtain the MIC array acquisitions to the difference of the acoustic information include：
Described in the phase information of first sound frequency that the positioning MIC in the MIC arrays is collected is calculated
The sound of sound source reaches the phase difference of the positioning MIC；
First sound cycle was obtained according to first sound frequency；
The sound of sound source reaches the positioning according to the phase difference and the first sound computation of Period of the positioning MIC
The time difference of MIC.
9. target students method as claimed in claim 8, it is characterised in that the positioning MIC includes the first positioning MIC, the
Two positioning MIC and the 3rd positioning MIC；
Methods described also includes：Before the difference according to the acoustic information is positioned to the sound source, according to the sound
The sound in source reaches the range difference of the sound arrival positioning MIC of the time difference calculating sound source of the positioning MIC；
The distance between described first positioning MIC and the second positioning MIC difference are defined as the first range difference, by the described second positioning
The distance between the positioning of MIC and the 3rd MIC is poor, and the second distance that is defined as is poor, and the described first positioning MIC and the 3rd are positioned into MIC
The distance between difference be defined as the 3rd range difference.
10. target students method as claimed in claim 9, it is characterised in that the difference pair according to the acoustic information
The sound source carries out positioning to be included：
In default fitting system, determine that the first positioning MIC, the second positioning MIC and the described 3rd position MIC's
Position；Fitting has position assumption diagram of the MIC arrays in the terminal in advance in wherein described fitting system；
Based on the position of the described first positioning MIC, the second positioning MIC and the 3rd positioning MIC, it is fitted to up to institute
State the first hyperboloid that the first positioning MIC is first range difference with the distance difference of the described second positioning MIC；It is fitted to
Up to the described second positioning MIC the second poor hyperboloid of the second distance is with the distance difference of the described 3rd positioning MIC；Intend
Close and reach the 3rd hyperbolic that the first positioning MIC is the 3rd range difference with the distance difference of the described 3rd positioning MIC
Face；
Obtain first hyperboloid, second hyperboloid and the 3rd bi-curved intersection point；
The intersection point is defined as position of the sound source in the fitting system；
The position of position and the terminal according to the sound source in the fitting system in the fitting system determines
The relative distance and orientation of the sound source and the terminal.
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| CN108958255A (en) * | 2018-07-23 | 2018-12-07 | 珠海格力电器股份有限公司 | Control method of electric appliance and electric appliance |
| CN111751786A (en) * | 2020-07-01 | 2020-10-09 | 北京小米移动软件有限公司 | Acoustic wave measuring method, acoustic wave measuring apparatus, acoustic wave measuring device, and storage medium |
| CN112185354A (en) * | 2020-09-17 | 2021-01-05 | 浙江同花顺智能科技有限公司 | Voice text display method, device, equipment and storage medium |
| CN112367473A (en) * | 2021-01-13 | 2021-02-12 | 北京电信易通信息技术股份有限公司 | Rotatable camera device based on voiceprint arrival phase and control method thereof |
| CN112526453A (en) * | 2019-09-17 | 2021-03-19 | 深圳Tcl数字技术有限公司 | User positioning method and intelligent terminal |
| WO2022111579A1 (en) * | 2020-11-27 | 2022-06-02 | 华为技术有限公司 | Voice wakeup method and electronic device |
| US12119004B2 (en) | 2020-09-17 | 2024-10-15 | Zhejiang Tonghuashun Intelligent Technology Co., Ltd. | Systems and methods for voice audio data processing |
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| CN112526453A (en) * | 2019-09-17 | 2021-03-19 | 深圳Tcl数字技术有限公司 | User positioning method and intelligent terminal |
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| WO2022111579A1 (en) * | 2020-11-27 | 2022-06-02 | 华为技术有限公司 | Voice wakeup method and electronic device |
| CN112367473A (en) * | 2021-01-13 | 2021-02-12 | 北京电信易通信息技术股份有限公司 | Rotatable camera device based on voiceprint arrival phase and control method thereof |
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Application publication date: 20170531 |
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| RJ01 | Rejection of invention patent application after publication |