CN104502892A - Positioning method, positioning device and user equipment - Google Patents
Positioning method, positioning device and user equipment Download PDFInfo
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- CN104502892A CN104502892A CN201410756930.XA CN201410756930A CN104502892A CN 104502892 A CN104502892 A CN 104502892A CN 201410756930 A CN201410756930 A CN 201410756930A CN 104502892 A CN104502892 A CN 104502892A
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- electromagnetic wave
- reflection
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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
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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
- G01S5/16—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using electromagnetic waves other than radio waves
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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
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- Electromagnetism (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The embodiment of the invention discloses a positioning method, a positioning device and user equipment. The positioning method comprises the following steps of obtaining at least three electromagnetic wave reflected signals corresponding to at least three positions, wherein the at least three electromagnetic wave reflected signals are formed by reflecting electromagnetic wave signals through at least three electromagnetic wave reflection modules on at least three positions under a state of responding to sound emitted by a sound source to produce vibration; according to the at least three electromagnetic wave reflected signals, obtaining three pieces of vibration strength information, caused by the sound source, of the at least three electromagnetic wave reflection modules; according to corresponding relation of each piece of vibration strength information among the at least three pieces of vibration strength information, the sound source sound strength information of the sound source, and the sound source position information of the sound source, obtaining the sound source position information. According to the technical scheme adopted by the embodiment of the invention, the electromagnetic waves in the environment can be utilized to position a sounding object, the energy can be saved and the system complexity can be lowered.
Description
Technical field
The application relates to location technology, particularly relates to a kind of localization method, locating device and subscriber equipment.
Background technology
Along with the quick increase of data service and multimedia service, the demand of people to position & navigation increases day by day, especially in the indoor environment of complexity, as in the environment such as airport hall, exhibition room, warehouse, supermarket, library, underground parking, mine, usually need to determine the positional information of object at fixed-sites such as indoor.
Summary of the invention
The object that the embodiment of the present application is possible is: provide a kind of location technology scheme.
First aspect, a possible embodiment of the application provides a kind of localization method, comprising:
Obtain at least three reflection of electromagnetic wave signals that at least three positions are corresponding; Wherein: described at least three reflection of electromagnetic wave signals are reflected to form electromagnetic wave signal under vibrative state at the sound sent in response to a sound source by least three reflection of electromagnetic wave modules of described at least three positions;
According to described at least three reflection of electromagnetic wave signals, obtain at least three oscillation intensity information of described at least three reflection of electromagnetic wave modules that described sound source causes;
Described sound source position information is obtained according to the corresponding relation between the sound source position information of each oscillation intensity information in described at least three oscillation intensity information and the source sound strength information of described sound source, described sound source.
In conjunction with first aspect, in the embodiment that the second is possible,
The reflection of electromagnetic wave characteristic of described at least three reflection of electromagnetic wave modules is different;
Described at least three reflection of electromagnetic wave signals corresponding at least three positions described in described acquisition comprise:
Corresponding reflection of electromagnetic wave characteristic, at least three positions described in determining and the one-to-one relationship between described at least three reflection of electromagnetic wave signals is distinguished according to described at least three reflection of electromagnetic wave signals and described at least three reflection of electromagnetic wave modules.
In conjunction with any one possible embodiment above-mentioned of first aspect, in the embodiment that the third is possible, described electromagnetic wave signal comprises: environmental electromagnetic wave signal.
In conjunction with any one possible embodiment above-mentioned of first aspect, in the 4th kind of possible embodiment, described at least three reflection of electromagnetic wave signals described in described basis obtain, at least three oscillation intensity information comprise:
At least three vibration informations that described in obtaining according to described at least three reflection of electromagnetic wave signals, at least three positions are corresponding;
At least three oscillation intensity information described in obtaining according to described at least three vibration informations.
In conjunction with any one possible embodiment above-mentioned of first aspect, in the 5th kind of possible embodiment, obtain described sound source position information according to the corresponding relation between described each oscillation intensity information and described source sound strength information, described sound source position information and comprise:
According to described at least three oscillation intensity information, obtain at least three corresponding with described at least three positions respectively group intensity locations relations, often group intensity locations relation comprises the multiple intensity locations relations between multiple possibility source sound intensity of the position corresponding with described at least three positions and possibility sound source position;
According to described multiple may in source sound intensity one may under source sound intensity described at least three positions the common factor of at least three intensity locations relations that all positions are corresponding obtain described sound source position information.
In conjunction with any one possible embodiment above-mentioned of first aspect, in the 6th kind of possible embodiment, be three dimensional local information corresponding to described sound source position information, described at least three positions are:
At least four positions.
Second aspect, a possible embodiment of the application provides a kind of locating device, comprising:
Electromagnetic wave signal acquisition module, for obtaining at least three reflection of electromagnetic wave signals corresponding at least three positions; Wherein: described at least three reflection of electromagnetic wave signals are reflected to form electromagnetic wave signal under vibrative state at the sound sent in response to a sound source by least three reflection of electromagnetic wave modules of described at least three positions;
Oscillation intensity acquisition module, for according to described at least three reflection of electromagnetic wave signals, obtains at least three oscillation intensity information of described at least three reflection of electromagnetic wave modules that described sound source causes;
Sound source position acquisition module, for obtaining described sound source position information according to the corresponding relation between the sound source position information of each oscillation intensity information in described at least three oscillation intensity information and the source sound strength information of described sound source, described sound source.
In conjunction with second aspect, in the embodiment that the second is possible, described electromagnetic wave signal acquisition module comprises:
Electromagnetic wave receiving element, at least three reflection of electromagnetic wave signals described in gathering.
In conjunction with any one possible embodiment above-mentioned of second aspect, in the embodiment that the third is possible, the reflection of electromagnetic wave characteristic of described at least three reflection of electromagnetic wave modules is different;
Described electromagnetic wave signal acquisition module comprises:
Signal source position determining unit, for reflection of electromagnetic wave characteristic, at least three positions described in determining and the one-to-one relationship between described at least three reflection of electromagnetic wave signals according to described at least three reflection of electromagnetic wave signals and described at least three reflection of electromagnetic wave modules difference correspondence.
In conjunction with any one possible embodiment above-mentioned of second aspect, in the 4th kind of possible embodiment, described electromagnetic wave signal comprises: environmental electromagnetic wave signal.
In conjunction with any one possible embodiment above-mentioned of second aspect, in the 5th kind of possible embodiment, described oscillation intensity acquisition module comprises:
Vibration information acquiring unit, at least three vibration informations that at least three positions described in obtaining according to described at least three reflection of electromagnetic wave signals are corresponding;
Intensity of sound acquiring unit, at least three oscillation intensity information described in obtaining according to described at least three vibration informations.
In conjunction with any one possible embodiment above-mentioned of second aspect, in the 6th kind of possible embodiment, described sound source position acquisition module comprises:
Intensity locations Relation acquisition unit, for according to described at least three oscillation intensity information, obtain at least three corresponding with described at least three positions respectively group intensity locations relations, often group intensity locations relation comprises the multiple intensity locations relations between multiple possibility source sound intensity of the position corresponding with described at least three positions and possibility sound source position;
Sound source position acquiring unit, for according to described multiple may in source sound intensity one may under source sound intensity described at least three positions the common factor of at least three intensity locations relations that all positions are corresponding obtain described sound source position information.
In conjunction with any one possible embodiment above-mentioned of second aspect, in the 7th kind of possible embodiment, at least three reflection of electromagnetic wave modules described in described device also comprises.
In conjunction with any one possible embodiment above-mentioned of second aspect, in the 8th kind of possible embodiment, be three dimensional local information corresponding to described sound source position information, described at least three positions are:
At least four positions.
The third aspect, a possible embodiment of the application provides a kind of subscriber equipment, comprises locating device recited above.
At least one embodiment of the embodiment of the present application, by obtaining and analyzing the reflection of electromagnetic wave signal of multiple position by the acoustic impacts in environment, obtains the oscillation intensity information that described sound causes in described multiple position, and then positions sound source.This location technology can utilize the electromagnetic wave in environment, energy-conservation and reduce system complexity, be particularly suitable for being used in number voice collection position and be not suitable for occasion that active device uses and the occasion that the acoustic information that will gather multiple position in a space positions positions sounding object.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of a kind of localization method of the embodiment of the present application;
Fig. 2 is the application scenarios schematic diagram of a kind of localization method of the embodiment of the present application;
Fig. 3 is the structural schematic block diagram of a kind of locating device of the embodiment of the present application;
Fig. 4 a and 4b is the structural schematic block diagram of two kinds of locating devices of the embodiment of the present application;
Fig. 5 is the structural schematic block diagram of a kind of locating device of the embodiment of the present application;
Fig. 6 is the structural schematic block diagram of a kind of subscriber equipment of the embodiment of the present application.
Embodiment
Below in conjunction with accompanying drawing (label identical in some accompanying drawings represents identical element) and embodiment, the embodiment of the application is described in further detail.Following examples for illustration of the application, but are not used for limiting the scope of the application.
It will be understood by those skilled in the art that the terms such as " first ", " second " in the application are only for distinguishing different step, equipment or module etc., neither represent any particular technology implication, also do not represent the inevitable logical order between them.
In the following description of the embodiment of the present application, described " sound " is not limited to the sound of the scope that people's ear can be heard, the sound that corresponding reflection of electromagnetic wave module can be caused to vibrate can be included in the protection domain of the application.
As shown in Figure 1, the embodiment of the present application provides a kind of localization method, comprising:
S110 obtains at least three reflection of electromagnetic wave signals corresponding at least three positions; Wherein: described at least three reflection of electromagnetic wave signals are reflected to form electromagnetic wave signal under vibrative state at the sound sent in response to a sound source by least three reflection of electromagnetic wave modules of described at least three positions;
S120, according to described at least three reflection of electromagnetic wave signals, obtains at least three the oscillation intensity information of described sound source in described at least three positions;
S130 obtains described sound source position information according to the corresponding relation between the sound source position information of each oscillation intensity information in described at least three oscillation intensity information and the source sound strength information of described sound source, described sound source.
For example, locating device provided by the invention, as the executive agent of the present embodiment, performs S110 ~ S130.Particularly, described locating device can be arranged in a user device in the mode of software, hardware or software and hardware combining, or described locating device is described subscriber equipment inherently; Described subscriber equipment includes but not limited to: mobile phone, computer, panel computer, home gateway, intelligent robot etc.
The embodiment of the embodiment of the present application, by obtaining and analyzing the reflection of electromagnetic wave signal of multiple position by the acoustic impacts in environment, obtains the oscillation intensity information that described sound causes in described multiple position, and then positions sound source.This localization method can utilize the electromagnetic wave in environment, energy-conservation and reduce system complexity, be particularly suitable for being used in number voice collection position and be not suitable for occasion that active device uses and the occasion that the acoustic information that will gather multiple position in a space positions positions sounding object.
By each embodiment below, further illustrate each step of the embodiment of the present application:
When needing to obtain the two-dimensional position information of described sound source at two-dimensional space, described at least three positions be three or more all right, can be such as three positions; When needs obtain described sound source at three-dimensional three dimensional local information, described at least three positions are then at least four positions, and in a kind of possible embodiment, such as, described in, four positions can be got at least four positions.
Each embodiment is below to need to obtain the two-dimensional position information of described sound source at two-dimensional space, and described at least three positions are described three positions is that example is described.
S110 obtains three reflection of electromagnetic wave signals corresponding to described three positions.
Wherein, described three reflection of electromagnetic wave signals are reflected to form electromagnetic wave signal under vibrative state at the sound sent in response to a sound source by three reflection of electromagnetic wave modules of described three positions.
As shown in Figure 2, at primary importance (x
1, y
1), the second place (x
2, y
2) and the 3rd position (x
3, y
3) place is respectively equipped with the first reflection of electromagnetic wave module 211, second reflection of electromagnetic wave module 212 and the 3rd reflection of electromagnetic wave module 213, these three reflection of electromagnetic wave modules are respectively to an electromagnetic wave receiving position reflection electromagnetic wave signal, such as, can by executive agent three the reflection of electromagnetic wave signals 241 ~ 243 this receiving position place obtain described three reflection of electromagnetic wave modules reflection after of a mobile terminal 220 as present embodiment.
Alternatively, the reflecting surface of described three reflection of electromagnetic wave modules distributes in an irregular pattern, and such as, be not parallel to each other distribution etc. mutually.
The voice signal 231 that one sound source 230 sends transfers to described primary importance (x respectively
1, y
1), the second place (x
2, y
2) and the 3rd position (x
3, y
3) place, cause the vibration of described first reflection of electromagnetic wave module 211, second reflection of electromagnetic wave module 212 and the 3rd reflection of electromagnetic wave module 213.Can be known by the Doppler effect of sound, the spectral characteristic of the reflection of electromagnetic wave signal that the vibration of described three reflection of electromagnetic wave modules can cause described electromagnetic wave receiving position place to receive changes.
In a kind of possible embodiment, described reflection of electromagnetic wave module can be such as reflection of electromagnetic wave film.
In a kind of possible embodiment, in order to obtain corresponding reflection of electromagnetic wave characteristic, described reflection of electromagnetic wave film also has printed antenna.
In a kind of possible embodiment, described reflection of electromagnetic wave film can be such as metallic film.In the embodiment that other are possible, described reflection of electromagnetic wave film can be the film of other material, and reflecting surface is provided with printed antenna.
In a kind of possible embodiment, described reflection comprises orienting reflex.That is, to reflection of electromagnetic wave signal described in described electromagnetic wave receiving position orienting reflex.
In a kind of possible embodiment, described orienting reflex can be realized by the shape of described reflection of electromagnetic wave module, such as, in a kind of possible embodiment, described reflection of electromagnetic wave module is the reflection of electromagnetic wave film of the reflecting surface with curved surface, and described electromagnetic wave receiving position is positioned at the reflection zone of convergence of described curved surface.In a kind of possible embodiment, described curved surface can be such as parabola or ellipsoidal surface.
In a kind of possible embodiment, described electromagnetic wave signal comprises: environmental electromagnetic wave signal, such as, and the radiowave in environment, light signal etc.That is, in the present embodiment, do not need other electromagnetic signals for reflection, but described reflection of electromagnetic wave signal can be reflected to form to the environmental electromagnetic wave signal existed in environment.Those skilled in the art can find out, present embodiment can reuse the electromagnetic field information that existed in space and without the need to transmitting, and both energy-conservationly again reduce system complexity.
In a kind of possible embodiment, such as, described at least one reflection of electromagnetic wave signal can be received by the mode of signals collecting.Such as, by receiving described three reflection of electromagnetic wave signals at the receiver module of described electromagnetic wave receiving position.
In the embodiment that another kind is possible, can also communication module be passed through, obtain described three reflection of electromagnetic wave signals from an external unit (such as receiver module recited above).
In a kind of possible embodiment, in order to three reflection of electromagnetic wave signals will receiving and described three reflection of electromagnetic wave module one_to_one corresponding, the reflection of electromagnetic wave characteristic of described three reflection of electromagnetic wave modules is different, such as, can realize different reflection of electromagnetic wave characteristics by different printed antenna in described reflection of electromagnetic wave module.
In the present embodiment, described step S110 comprises:
Distinguish corresponding reflection of electromagnetic wave characteristic according to described three reflection of electromagnetic wave signals and described three reflection of electromagnetic wave modules, determine the one-to-one relationship between described three positions and described three reflection of electromagnetic wave signals.
In the embodiment that other is possible, by alternate manner, described three positions can also be mated with described three reflection of electromagnetic wave signals, such as, three reflection of electromagnetic wave signals that described three positions reflect can be received at multiple receiver modules that described electromagnetic wave receiving position place setting position is different, again by such as vertical-bell laboratory layered space-time code (Vertical-Bell Labs Layered Space-Time, multiple-input and multiple-output (the Multiple-Input Multiple-Output such as V-BLAST), MIMO) receiving algorithm determines the position that each reflection of electromagnetic wave signal is corresponding.
S120, according to described three reflection of electromagnetic wave signals, obtains three the oscillation intensity information of described sound source in described three positions.
In a kind of possible embodiment, described step S120 comprises:
Three vibration informations corresponding to described three positions are obtained according to described three reflection of electromagnetic wave signals;
Described three oscillation intensity information are obtained according to described three vibration informations.
For the scene shown in Fig. 2, in a kind of possible embodiment, by the change of the spectrum distribution of described three reflection of electromagnetic wave signals, classical fm demodulation method or machine learning method can be utilized, obtain three vibration informations that described three reflection of electromagnetic wave modules are corresponding respectively.
S130 obtains described sound source position information according to the corresponding relation between the sound source position information of each oscillation intensity information in described three oscillation intensity information and the source sound strength information of described sound source, described sound source.
In a kind of possible embodiment, described step S130 comprises:
According to described three oscillation intensity information, obtain three groups of corresponding with described three positions respectively intensity locations relations, often group intensity locations relation comprises the multiple intensity locations relations between multiple possibility source sound intensity corresponding to the position corresponding with described three positions and possibility sound source position;
According to described multiple may in source sound intensity one may under source sound intensity in described three positions the common factor of three intensity locations relations that all positions are corresponding obtain described sound source position information.
In a kind of possible embodiment, according to the propagation principle of sound, the intensity of sound of a position and this position to the distance of sound source and the source sound intensity of sound source relevant.In addition, the angle between the normal of the oscillation intensity causing the reflection of electromagnetic wave module of a position (such as reflection of electromagnetic wave film) to vibrate and the intensity of sound of this position and the vibration plane of direction of sound propagation and reflection of electromagnetic wave module is relevant.Therefore, by these principles, can, according to the oscillation intensity information of a position in described three positions, obtain causing the intensity locations relation between the possible source sound intensity of this oscillation intensity of this position and possible sound source position.
In a kind of possible embodiment, can by the method for study, training, multiple intensity locations relations corresponding under obtaining each position each oscillation intensity information.
Described intensity locations relation such as can be represented by the iso-intensity curve 251 ~ 253,251 ' ~ 253 ' in Fig. 2, here, each point on same iso-intensity curve corresponds to the strength of sound source information of same intensity, the diverse location information of the positional representation sound source at some places different on described iso-intensity curve.
As shown in Figure 2, be described for primary importance, the reflection of electromagnetic wave signal 241 corresponding according to the first reflection of electromagnetic wave module 211 with first position obtains the first oscillation intensity I of described first reflection of electromagnetic wave module 211
f1.If need to cause described first reflection of electromagnetic wave module 211 to produce described first oscillation intensity I in described first position
f1vibration, sentence the first sound source intensity of sound I with regard to needing the various point locations of described sound source 230 on iso-intensity curve 251
s1sounding, or the various point locations on iso-intensity curve 251 ' sentences the second sound source intensity of sound I
s2sounding.Certainly, merely illustrate in Fig. 2 and described primary importance, described first oscillation intensity I
f1two relevant iso-intensity curves, those skilled in the art can know, have an iso-intensity curve corresponding to each source sound intensity, and therefore corresponding with an oscillation intensity of position iso-intensity curve can be many arbitrarily.
Equally, the second oscillation intensity I of described second reflection of electromagnetic wave module 212 is obtained according to reflection of electromagnetic wave signal 242
f2.Obtain and the described second place and described second oscillation intensity I again
f2corresponding iso-intensity curve 252 and 252 '.Wherein, described iso-intensity curve 252 corresponds to described first sound source intensity of sound I
s1, described iso-intensity curve 252 ' is corresponding to described second sound source intensity of sound I
s2.
The 3rd oscillation intensity I of described 3rd reflection of electromagnetic wave module 213 is obtained according to reflection of electromagnetic wave signal 243
f3.Obtain and described 3rd position and described 3rd oscillation intensity I again
f3corresponding iso-intensity curve 253 and 253 '.Wherein, described iso-intensity curve 253 corresponds to described first sound source intensity of sound I
s1, described iso-intensity curve 253 ' is corresponding to described second sound source intensity of sound I
s2.
In present embodiment, described according to described multiple may in source sound intensity one may under source sound intensity in described three positions the common factor of three intensity locations relations that all positions are corresponding obtain the intersection point that described sound source position information is the iso-intensity curve finding each position under identical source sound intensity corresponding.
Such as, in the present embodiment, be the second sound source intensity of sound I in described source sound intensity
s2time, not having intersection point between the iso-intensity curve 251 ' ~ 253 ' that each position is corresponding, is the first sound source intensity of sound I in described source sound intensity
s1time, have the intersection point that is common between the iso-intensity curve 251 ~ 253 that each position is corresponding, the position of this intersection point is the position at described sound source place.
Iso-intensity curve described in Fig. 2 is a kind of possible manifestation mode of the relation of intensity locations described in the embodiment of the present application.In other embodiments, iso-intensity curve corresponding to described intensity locations relation may be also other shape, such as, and can be different along with the difference of the shape of described reflection of electromagnetic wave module 213.
Certainly, those skilled in the art can know, when described sound source position information is three dimensional local information, what the intensity locations relation obtained according at least four oscillation intensity information of at least four positions and correspondence was corresponding may be equal strength curved surface.
Can be known by description above, in the present embodiment, described electromagnetic wave signal receiving position can be unknown, and therefore, described receiver module can be the receiver module on mobile device.
It will be appreciated by those skilled in the art that, in the said method of the application's embodiment, the sequence number size of each step does not also mean that the priority of execution sequence, the execution sequence of each step should be determined with its function and internal logic, and should not form any restriction to the implementation process of the application's embodiment.
As shown in Figure 3, a kind of possible embodiment of the embodiment of the present application provides a kind of locating device 300, comprising:
Electromagnetic wave signal acquisition module 310, for obtaining at least three reflection of electromagnetic wave signals corresponding at least three positions; Wherein: described at least three reflection of electromagnetic wave signals are reflected to form electromagnetic wave signal under vibrative state at the sound sent in response to a sound source by least three reflection of electromagnetic wave modules of described at least three positions;
Oscillation intensity acquisition module 320, for according to described at least three reflection of electromagnetic wave signals, obtains at least three oscillation intensity information of described at least three reflection of electromagnetic wave modules that described sound source causes;
Sound source position acquisition module 330, for obtaining described sound source position information according to the corresponding relation between the sound source position information of each oscillation intensity information in described at least three oscillation intensity information and the source sound strength information of described sound source, described sound source.
The embodiment of the embodiment of the present application, by obtaining and analyzing the reflection of electromagnetic wave signal of multiple position by the acoustic impacts in environment, obtains the oscillation intensity information that described sound causes in described multiple position, and then positions sound source.This locating device can utilize the electromagnetic wave in environment, energy-conservation and reduce system complexity, be particularly suitable for being used in number voice collection position and be not suitable for occasion that active device uses and the occasion that the acoustic information that will gather multiple position in a space positions positions sounding object.
Each module and the unit of the embodiment of the present application is further illustrated by embodiment below.
Identical with the embodiment shown in Fig. 1, in the present embodiment, when needing to obtain the two-dimensional position information of described sound source at two-dimensional space, described at least three positions be three or more all right, can be such as three positions; When needs obtain described sound source at three-dimensional three dimensional local information, described at least three positions are then at least four positions, and in a kind of possible embodiment, such as, described in, four positions can be got at least four positions.
As shown in fig. 4 a, in a kind of possible embodiment, at least three reflection of electromagnetic wave modules 340 described in described device also comprises.
In a kind of possible embodiment, described reflection of electromagnetic wave module 340 can be such as reflection of electromagnetic wave film.
In a kind of possible embodiment, in order to obtain corresponding reflection of electromagnetic wave characteristic, described reflection of electromagnetic wave film also has printed antenna.
In a kind of possible embodiment, described reflection of electromagnetic wave film can be such as metallic film.In the embodiment that other are possible, described reflection of electromagnetic wave film can be the film of other material, and reflecting surface is provided with printed antenna.
In a kind of possible embodiment, described reflection comprises orienting reflex.That is, to reflection of electromagnetic wave signal described in described electromagnetic wave receiving position orienting reflex.
In a kind of possible embodiment, described orienting reflex can be realized by the shape of described reflection of electromagnetic wave module, such as, in a kind of possible embodiment, described reflection of electromagnetic wave module is the reflection of electromagnetic wave film of the reflecting surface with curved surface, and described electromagnetic wave receiving position is positioned at the reflection zone of convergence of described curved surface.In a kind of possible embodiment, described curved surface can be such as parabola or ellipsoidal surface.
In a kind of possible embodiment, described electromagnetic wave signal comprises: environmental electromagnetic wave signal, such as, and the radiowave in environment, light signal etc.That is, in the present embodiment, do not need other electromagnetic signals for reflection, but described reflection of electromagnetic wave signal can be reflected to form to the environmental electromagnetic wave signal existed in environment.Those skilled in the art can find out, present embodiment can reuse the electromagnetic field information that existed in space and without the need to transmitting, and both energy-conservationly again reduce system complexity.
As shown in fig. 4 a, in a kind of possible embodiment, described electromagnetic wave signal acquisition module 310 can comprise:
Electromagnetic wave receiving element 311, at least three reflection of electromagnetic wave signals described in gathering.
As shown in Figure 4 b, in the embodiment that another kind is possible, described electromagnetic wave acquisition module 310 can comprise:
Communication unit 312, for obtaining described three reflection of electromagnetic wave signals from an external unit (such as electromagnetic wave receiving element 311 recited above).
In the present embodiment, the relation between described at least three reflection of electromagnetic wave signals, described at least three positions and described sound source is see the description of Fig. 1 and middle correspondence embodiment illustrated in fig. 2.
In a kind of possible embodiment, the reflection of electromagnetic wave characteristic of described at least three reflection of electromagnetic wave modules 340 is different, such as, can realize different reflection of electromagnetic wave characteristics by described reflection of electromagnetic wave module 340 being formed different printed antennas.
Now, in a kind of possible embodiment, as shown in fig. 4 a, described electromagnetic wave signal acquisition module 310 also comprises:
Signal source position determining unit 313, for reflection of electromagnetic wave characteristic, at least three positions described in determining and the one-to-one relationship between described at least three reflection of electromagnetic wave signals according to described at least three reflection of electromagnetic wave signals and described at least three reflection of electromagnetic wave modules difference correspondence.
In the embodiment that other is possible, with other module or unit, described three positions can also be mated with described three reflection of electromagnetic wave signals.Such as, in a kind of possible embodiment, described electromagnetic wave receiving element 311 can be an electromagnetic wave receiving array, wherein comprises multiple electromagnetic wave receiving antenna.At least three the reflection of electromagnetic wave signals received according to each electromagnetic wave receiving antenna again determine by MIMO receiving algorithms such as such as V-BLAST the position that each reflection of electromagnetic wave signal is corresponding.
As shown in fig. 4 a, in a kind of possible embodiment, described oscillation intensity acquisition module 320 comprises:
Vibration information acquiring unit 321, at least three vibration informations that at least three positions described in obtaining according to described at least three reflection of electromagnetic wave signals are corresponding;
Intensity of sound acquiring unit 322, at least three oscillation intensity information described in obtaining according to described at least three vibration informations.
The description further described see Fig. 1 and middle correspondence embodiment illustrated in fig. 2 of at least three vibration informations described in being obtained by described vibration information acquiring unit 321.
In a kind of possible embodiment, as shown in fig. 4 a, described sound source position acquisition module 330 comprises:
Intensity locations Relation acquisition unit 331, for according to described at least three oscillation intensity information, obtain at least three corresponding with described at least three positions respectively group intensity locations relations, often group intensity locations relation comprises the multiple intensity locations relations between multiple possibility source sound intensity of the position corresponding with described at least three positions and possibility sound source position;
Sound source position acquiring unit 332, for according to described multiple may in source sound intensity one may under source sound intensity described at least three positions the common factor of at least three intensity locations relations that all positions are corresponding obtain described sound source position information.
Described intensity locations Relation acquisition unit 331 and the further functional realiey of described sound source position acquiring unit 332 are see Fig. 1 and middle corresponding description embodiment illustrated in fig. 2.
The structural representation of another locating device 500 that Fig. 5 provides for the embodiment of the present application, the application's specific embodiment does not limit the specific implementation of locating device 500.As shown in Figure 5, this locating device 500 can comprise:
Processor (processor) 510, communication interface (Communications Interface) 520, storer (memory) 530 and communication bus 540.Wherein:
Processor 510, communication interface 520 and storer 530 complete mutual communication by communication bus 540.
Communication interface 520, for the net element communication with such as client etc.
Processor 510, for executive routine 532, specifically can correlation step to perform the above method in embodiment.
Particularly, program 532 can comprise program code, and described program code comprises computer-managed instruction.
Processor 510 may be a central processor CPU, or specific integrated circuit ASIC (Application Specific Integrated Circuit), or is configured to the one or more integrated circuit implementing the embodiment of the present application.
Storer 530, for depositing program 532.Storer 530 may comprise high-speed RAM storer, still may comprise nonvolatile memory (non-volatile memory), such as at least one magnetic disk memory.Program 532 specifically may be used for making described locating device 500 perform following steps:
Obtain at least three reflection of electromagnetic wave signals that at least three positions are corresponding; Wherein: described at least three reflection of electromagnetic wave signals are reflected to form electromagnetic wave signal under vibrative state at the sound sent in response to a sound source by least three reflection of electromagnetic wave modules of described at least three positions;
According to described at least three reflection of electromagnetic wave signals, obtain at least three the oscillation intensity information of described sound source in described at least three positions;
Described sound source position information is obtained according to the corresponding relation between the sound source position information of each oscillation intensity information in described at least three oscillation intensity information and the source sound strength information of described sound source, described sound source.
In program 532, the specific implementation of each step see description corresponding in the corresponding steps in above-described embodiment and unit, can be not repeated herein.Those skilled in the art can be well understood to, and for convenience and simplicity of description, the equipment of foregoing description and the specific works process of module, can describe with reference to the corresponding process in preceding method embodiment, not repeat them here.
As shown in Figure 6, the embodiment of the present application additionally provides a kind of subscriber equipment 600, comprises the locating device 610 described in Fig. 3, Fig. 4 a or Fig. 4 b illustrated embodiment.
Described subscriber equipment 610 includes but not limited to: mobile phone, computer, panel computer, home gateway, intelligent robot etc.
The subscriber equipment 600 of the embodiment of the present application can utilize the electromagnetic wave in environment to position sound source by described locating device 610, energy-conservation and reduce system complexity, be particularly suitable for being used in number voice collection position and be not suitable for occasion that active device uses and the occasion that the acoustic information that will gather multiple position in a space positions positions sounding object.
Those of ordinary skill in the art can recognize, in conjunction with unit and the method step of each example of embodiment disclosed herein description, can realize with the combination of electronic hardware or computer software and electronic hardware.These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can use distinct methods to realize described function to each specifically should being used for, but this realization should not think the scope exceeding the application.
If described function using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, the part of the part that the technical scheme of the application contributes to prior art in essence in other words or this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the application.And aforesaid storage medium comprises: USB flash disk, portable hard drive, ROM (read-only memory) (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. various can be program code stored medium.
Above embodiment is only for illustration of the application; and the restriction not to the application; the those of ordinary skill of relevant technical field; when not departing from the spirit and scope of the application; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to the category of the application, and the scope of patent protection of the application should be defined by the claims.
Claims (10)
1. a localization method, is characterized in that, comprising:
Obtain at least three reflection of electromagnetic wave signals that at least three positions are corresponding; Wherein: described at least three reflection of electromagnetic wave signals are reflected to form electromagnetic wave signal under vibrative state at the sound sent in response to a sound source by least three reflection of electromagnetic wave modules of described at least three positions;
According to described at least three reflection of electromagnetic wave signals, obtain at least three oscillation intensity information of described at least three reflection of electromagnetic wave modules that described sound source causes;
Described sound source position information is obtained according to the corresponding relation between the sound source position information of each oscillation intensity information in described at least three oscillation intensity information and the source sound strength information of described sound source, described sound source.
2. the method for claim 1, is characterized in that,
The reflection of electromagnetic wave characteristic of described at least three reflection of electromagnetic wave modules is different;
Described at least three reflection of electromagnetic wave signals corresponding at least three positions described in described acquisition comprise:
Corresponding reflection of electromagnetic wave characteristic, at least three positions described in determining and the one-to-one relationship between described at least three reflection of electromagnetic wave signals is distinguished according to described at least three reflection of electromagnetic wave signals and described at least three reflection of electromagnetic wave modules.
3. the method for claim 1, is characterized in that,
Described electromagnetic wave signal comprises: environmental electromagnetic wave signal.
4. the method for claim 1, is characterized in that, described at least three reflection of electromagnetic wave signals described in described basis obtain, at least three oscillation intensity information comprise:
At least three vibration informations that described in obtaining according to described at least three reflection of electromagnetic wave signals, at least three positions are corresponding;
At least three oscillation intensity information described in obtaining according to described at least three vibration informations.
5. the method for claim 1, is characterized in that, obtains described sound source position information comprise according to the corresponding relation between described each oscillation intensity information and described source sound strength information, described sound source position information:
According to described at least three oscillation intensity information, obtain at least three corresponding with described at least three positions respectively group intensity locations relations, often group intensity locations relation comprises the multiple intensity locations relations between multiple possibility source sound intensity of the position corresponding with described at least three positions and possibility sound source position;
According to described multiple may in source sound intensity one may under source sound intensity described at least three positions the common factor of at least three intensity locations relations that all positions are corresponding obtain described sound source position information.
6. a locating device, is characterized in that, comprising:
Electromagnetic wave signal acquisition module, for obtaining at least three reflection of electromagnetic wave signals corresponding at least three positions; Wherein: described at least three reflection of electromagnetic wave signals are reflected to form electromagnetic wave signal under vibrative state at the sound sent in response to a sound source by least three reflection of electromagnetic wave modules of described at least three positions;
Oscillation intensity acquisition module, for according to described at least three reflection of electromagnetic wave signals, obtains at least three oscillation intensity information of described at least three reflection of electromagnetic wave modules that described sound source causes;
Sound source position acquisition module, for obtaining described sound source position information according to the corresponding relation between the sound source position information of each oscillation intensity information in described at least three oscillation intensity information and the source sound strength information of described sound source, described sound source.
7. device as claimed in claim 6, is characterized in that,
The reflection of electromagnetic wave characteristic of described at least three reflection of electromagnetic wave modules is different;
Described electromagnetic wave signal acquisition module comprises:
Signal source position determining unit, for reflection of electromagnetic wave characteristic, at least three positions described in determining and the one-to-one relationship between described at least three reflection of electromagnetic wave signals according to described at least three reflection of electromagnetic wave signals and described at least three reflection of electromagnetic wave modules difference correspondence.
8. device as claimed in claim 6, it is characterized in that, described oscillation intensity acquisition module comprises:
Vibration information acquiring unit, at least three vibration informations that at least three positions described in obtaining according to described at least three reflection of electromagnetic wave signals are corresponding;
Intensity of sound acquiring unit, at least three oscillation intensity information described in obtaining according to described at least three vibration informations.
9. device as claimed in claim 6, it is characterized in that, described sound source position acquisition module comprises:
Intensity locations Relation acquisition unit, for according to described at least three oscillation intensity information, obtain at least three corresponding with described at least three positions respectively group intensity locations relations, often group intensity locations relation comprises the multiple intensity locations relations between multiple possibility source sound intensity of the position corresponding with described at least three positions and possibility sound source position;
Sound source position acquiring unit, for according to described multiple may in source sound intensity one may under source sound intensity described at least three positions the common factor of at least three intensity locations relations that all positions are corresponding obtain described sound source position information.
10. a subscriber equipment, is characterized in that, comprises the locating device according to any one of claim 6-9.
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