CN110515085A - Ultrasonic processing method, device, electronic equipment and computer-readable medium - Google Patents

Ultrasonic processing method, device, electronic equipment and computer-readable medium Download PDF

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Publication number
CN110515085A
CN110515085A CN201910701486.4A CN201910701486A CN110515085A CN 110515085 A CN110515085 A CN 110515085A CN 201910701486 A CN201910701486 A CN 201910701486A CN 110515085 A CN110515085 A CN 110515085A
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China
Prior art keywords
frequency
ultrasonic
electronic equipment
amplitude
data
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CN201910701486.4A
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CN110515085B (en
Inventor
严锋贵
潘朝
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Priority to CN201910701486.4A priority Critical patent/CN110515085B/en
Publication of CN110515085A publication Critical patent/CN110515085A/en
Priority to PCT/CN2020/103323 priority patent/WO2021017950A1/en
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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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/521—Constructional features
    • 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/523—Details of pulse systems
    • G01S7/526—Receivers
    • G01S7/527—Extracting wanted echo signals
    • 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/534—Details of non-pulse systems
    • G01S7/536—Extracting wanted echo signals

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

The embodiment of the present application discloses a kind of ultrasonic processing method, device, electronic equipment and computer-readable medium, is related to technical field of mobile terminals.This method comprises: sending ultrasonic signal, and the ultrasonic signal returned after encountering object by ultrasonic probe, ultrasonic receiver received ultrasonic signal by ultrasonic wave sending device；Obtain the first amplitude-frequency data by the received ultrasonic signal of ultrasonic probe, ultrasonic receiver；According to the parameter of ultrasonic analysis model, the first amplitude-frequency data are mapped as the second amplitude-frequency data；Using the second amplitude-frequency data as the input of ultrasonic analysis model, to obtain the motion state of electronic equipment；Respective operations are executed according to motion state controlling electronic devices.Therefore, the second amplitude-frequency data that electronic equipment is used uniformly after ultrasonic analysis model and mapping determine the motion state of electronic equipment, can reduce the otherness of the ultrasonic analysis effect of distinct device.

Description

Ultrasonic processing method, device, electronic equipment and computer-readable medium
Technical field
This application involves technical field of mobile terminals, more particularly, to a kind of ultrasonic processing method, device, electronics Equipment and computer-readable medium.
Background technique
Prevalence with comprehensive screen design of mobile terminal has had more to save the headspace of mobile terminal Producer uses ultrasonic wave proximity test scheme on mobile terminals to replace traditional infrared proximity detection scheme.But it is different Mobile terminal equipment on difference, cause respective ultrasonic analysis effect difference larger.
Summary of the invention
Present applicant proposes a kind of ultrasonic processing method, device, electronic equipment and computer-readable mediums, on improving State defect.
In a first aspect, the embodiment of the present application provides a kind of ultrasonic processing method, it is applied to electronic equipment, the electronics Equipment includes ultrasonic wave sending device and ultrasonic probe, ultrasonic receiver, which comprises is sent out by the ultrasonic wave sending device Ultrasonic signal is sent, and the ultrasound that the ultrasonic signal returns after encountering object is received by the ultrasonic probe, ultrasonic receiver Wave signal；It obtains by the received ultrasonic signal of the ultrasonic probe, ultrasonic receiver, obtains the first amplitude-frequency of the ultrasonic signal Data；According to the parameter of ultrasonic analysis model, the first amplitude-frequency data are mapped as the second amplitude-frequency data；By described second Input of the amplitude-frequency data as the ultrasonic analysis model, to obtain the motion state of the electronic equipment；According to the fortune Dynamic state controls the electronic equipment and executes respective operations.
Second aspect, the embodiment of the present application also provides a kind of ultrasonications, are applied to electronic equipment, and the electronics is set Standby includes ultrasonic wave sending device and ultrasonic probe, ultrasonic receiver, and the ultrasonic treatment unit includes: receiving unit, obtains list Member, map unit, detection unit and processing unit.Receiving unit, for sending ultrasonic wave by the ultrasonic wave sending device Signal, and the ultrasonic signal that the ultrasonic signal returns after encountering object is received by the ultrasonic probe, ultrasonic receiver. Acquiring unit obtains the of the ultrasonic signal for obtaining by the received ultrasonic signal of the ultrasonic probe, ultrasonic receiver One amplitude-frequency data.The first amplitude-frequency data are mapped as second for the parameter according to ultrasonic analysis model by map unit Amplitude-frequency data.Detection unit, for using the second amplitude-frequency data as the input of the ultrasonic analysis model, to obtain State the motion state of electronic equipment.Processing unit executes corresponding behaviour for controlling the electronic equipment according to the motion state Make.
The third aspect, the embodiment of the present application also provides a kind of electronic equipment, comprising: one or more processors；Storage Device；Ultrasonic wave sending device and ultrasonic probe, ultrasonic receiver；One or more application program, wherein one or more of apply journey Sequence is stored in the memory and is configured as being executed by one or more of processors, one or more of programs It is configured to carry out the above method.
Fourth aspect, the embodiment of the present application also provides a kind of computers of program code that can be performed with processor can Medium is read, said program code makes the processor execute the above method.
Scheme provided by the present application sends ultrasonic signal by the ultrasonic wave sending device, and passes through the ultrasound Wave receiving device receives the ultrasonic signal that the ultrasonic signal returns after encountering object, then, sets getting electronics When the amplitude-frequency data of standby received ultrasonic signal, there is no the movement shapes for passing through the amplitude-frequency data acquisition electronics State, but according to the parameter of ultrasonic analysis model, the first amplitude-frequency data are mapped as the second amplitude-frequency data, then, In By ultrasonic analysis model, and using the second amplitude-frequency data as the motion state for inputting determining electronic equipment, therefore, electronics The second amplitude-frequency data that equipment is used uniformly after ultrasonic analysis model and mapping determine the motion state of electronic equipment, then are Keep the hardware facility of electronic equipment different and cause the parameter for acquiring ultrasonic signal different, due to using unified ultrasonic wavelength-division Model and unified mapping relations are analysed, can reduce the otherness of the ultrasonic analysis effect of distinct device.
Detailed description of the invention
In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application, for For those skilled in the art, without creative efforts, it can also be obtained according to these attached drawings other attached Figure.
Fig. 1 shows the schematic diagram of the propagation path of ultrasonic wave provided by the embodiments of the present application；
Fig. 2 shows ultrasonic wave provided by the embodiments of the present application transmission, reception and data processing flow schematic diagrams；
Fig. 3 shows a kind of method flow diagram of ultrasonic processing method provided by the embodiments of the present application；
Fig. 4 shows the schematic diagram of Doppler effect provided by the embodiments of the present application；
Fig. 5 shows audio data spectrogram provided by the embodiments of the present application；
Fig. 6 shows shelter and mobile terminal provided by the embodiments of the present application during being relatively close to, is static, separate Doppler_dif changing rule schematic diagram
Fig. 7 shows a kind of method flow diagram for ultrasonic processing method that another embodiment of the application provides；
Fig. 8 shows the method flow diagram of the step S703 in Fig. 7；
Fig. 9 shows the method flow diagram of the step S704 in Fig. 7；
Figure 10 shows the schematic diagram of the mapping of amp_b_calib to amp_a provided by the embodiments of the present application；
Figure 11 shows the schematic diagram of the amplitude frequency curve after fitting provided by the embodiments of the present application；
Figure 12 shows the module frame chart of ultrasonic treatment unit provided by the embodiments of the present application；
Figure 13 shows the module frame chart of the map unit 1230 in Figure 12；
Figure 14 shows the embodiment of the present application for executing the electronics of the ultrasonic processing method according to the embodiment of the present application The block diagram of equipment；
Figure 15 shows realizing for saving or carrying according to the ultrasonic wave of the embodiment of the present application for the embodiment of the present application The storage unit of the program code of processing method.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described.
Prevalence with comprehensive screen design of mobile terminal has had more to save the headspace of mobile terminal Producer uses ultrasonic wave on mobile terminals and substitutes traditional infrared proximity detection scheme close to monitoring scheme.Mobile terminal is logical Overshot wave sending device (such as earpiece, loudspeaker, special-purpose ultrasonic transmitter) transmitting ultrasonic wave is crossed, a part of ultrasonic wave passes through sky Gas is propagated in through ultrasonic probe, ultrasonic receiver (sound pick-up) (path 1 of such as Fig. 1), and a part of ultrasonic wave passes through air borne and blocks Object reaches ultrasonic probe, ultrasonic receiver (path 2 of such as Fig. 1) after forming reflection again.What ultrasonic probe, ultrasonic receiver picked up is direct sound wave With the superposed signal of reflected sound, as shown in Fig. 2, being converted into audio signal by A/D converter.Pass through algorithm process audio data The operating status of shelter relative movement terminal is obtained, and then the display screen of mobile terminal is instructed to be in bright screen state or breath screen shape State.
Specifically, when listen to mobile terminal it is on call when, can be sent out by the ultrasonic wave built in mobile terminal The ultrasonic signal for sending device to send fixed frequency, it is to be understood that in the ultrasonic signal that ultrasonic wave sending device is sent A part gone directly ultrasonic probe, ultrasonic receiver by air borne, after another part forms reflection by air borne and shelter Reach ultrasonic probe, ultrasonic receiver again, what ultrasonic probe, ultrasonic receiver picked up is the superposed signal of direct sound wave and reflected sound, by A/D Be converted to audio signal, wherein the shelter may include face, human body etc..For example, as shown in Fig. 2, by mobile terminal Earpiece, loudspeaker or the special-purpose ultrasonic transmitter set send the ultrasonic signal of fixed frequency, a part of ultrasonic signal It is gone directly sound pick-up by air borne, another part reaches sound pick-up after forming reflection by air borne and shelter again, picks up Sound device is that is gone to is the superposed signal of direct sound wave and reflected sound, is converted to audio signal by A/D.
Inventor has found that since electro-acoustic element difference, the structure design that different mobile terminal uses are different, Result in the frequency response in mobile terminal entire sound circuit from ultrasonic transmitter to sound pick-up different, it will usually which selection is in ultrasonic wave The higher frequency of mobile terminal frequency response is as ultrasonic wave tranmitting frequency in frequency range.Such benefit is that microphone pickup arrives The noise of ultrasonic signal is relatively high, is more advantageous to algorithm and exports correct judging result.There are one influence ultrasonic wave transmitting The factor of frequency selection is the interference noise that can have supersonic band inside mobile terminal, such as gyroscope, acceleration sensing The noise for the supersonic range that sensor can issue 21KHz or so when working therefore will be as far as possible when selecting ultrasonic wave tranmitting frequency Avoid the frequency of these interference noises.
Considered based on factors above, the mobile terminal of different model can use different ultrasonic wave tranmitting frequencies.Due to new The ultrasonic wave tranmitting frequency that old model mobile terminal uses is different, frequency response is also different, and current countermeasure is again new The training that data carry out disaggregated model is grabbed on mobile terminal.Since the sorting algorithm majority used is artificial neural network, because This, at least wants the label data of hundreds of thousands group or up to a million groups, and needs developer to iterate and train and test ability Reach preferable classifying quality, this needs a large amount of manpower and time that could complete, and also results in the end of different model in this way Hold recognition effect difference larger.
Therefore, in order to solve drawbacks described above, as shown in figure 3, the embodiment of the present application provides a kind of ultrasonic processing method, Applied to electronic equipment, the electronic equipment includes ultrasonic wave sending device and ultrasonic probe, ultrasonic receiver, wherein ultrasonic wave hair Sending device to can be earpiece built in it, loudspeaker or special-purpose ultrasonic transmitter, ultrasonic probe, ultrasonic receiver can be sound pick-up. Specifically, this method comprises: S301 to S305.
S301: ultrasonic signal is sent by the ultrasonic wave sending device, and is connect by the ultrasonic probe, ultrasonic receiver Receive the ultrasonic signal that the ultrasonic signal returns after encountering object.
In the present embodiment, mobile terminal includes simultaneously ultrasonic wave sending device and ultrasonic probe, ultrasonic receiver.In ultrasonic wave During sending device relative object movement, its essence is mobile terminal relative object movements, thus ultrasonic probe, ultrasonic receiver Also relative object movement.According to Doppler effect, the wavelength of object radiation is because of wave source (mobile terminal) and observer's (object) Relative motion and generate variation, Doppler effect formulas is as follows:
F' is the frequency observed；F is original transmitted frequency of the transmitting in the medium；V be wave in the medium Spread speed；v0For observer's movement speed, if close to emission source front oeprator be+number, otherwise for-number；vsFor hair Penetrate source movement speed, if close to observer front oeprator be-number, otherwise for+number.
As shown in figure 4, by Doppler effect formulas it is found that observer receives when emission source and observer are relatively close to To signal frequency can become larger；When emission source and observer are relatively distant from, the signal frequency that observer receives can become smaller；When When emission source and observer are opposing stationary, it is consistent with emission source that observer receives signal frequency.
In the embodiment of the present application, it is super that electronic equipment can execute the control ultrasonic wave sending device transmission based on request Acoustic signals, and the ultrasonic wave that the ultrasonic signal returns after encountering object is received by the ultrasonic probe, ultrasonic receiver and is believed Number operation, as an implementation, can be user input trigger request.For example, user passes through operation electronic equipment Physical button or display interface on electronic equipment and the instruction that inputs.Specifically, it can be user and answering call When, determination gets the request.Ultrasonic signal is then sent by the ultrasonic wave sending device, and passes through the ultrasonic wave A kind of embodiment that reception device receives the ultrasonic signal that the ultrasonic signal returns after encountering object can be, when When the mobile terminal is on call, ultrasonic signal is sent by the ultrasonic wave sending device, and by described super Acoustic receiver device receives the ultrasonic signal that the ultrasonic signal returns after encountering object.
In the present embodiment, electronic equipment to the incoming call of the electronic equipment or can remove electricity by built-in monitoring module It is monitored in real time, is in when jingle bell starts (CALL_STATE_RINGING) incoming call or dials operation when listening to electronic equipment When removing electricity, monitor whether the electronic equipment enters talking state.Wherein, it carries out dialing operation in electronic equipment and removes electricity When, system broadcasts can be issued, Broadcast Receiver can be used to monitor in electronic equipment, in addition, monitoring electronic equipment Whether it is on call can for monitor electronic equipment after sending a telegram here or removing electricity whether in call in interface, wherein when Listening to the electronic equipment when (CALL_STATE_OFFHOOK), can determine that electronic equipment is in call shape in call State.
In some embodiments, when listen to electronic equipment it is on call when, can be by built in electronic equipment Ultrasonic wave sending device send the ultrasonic signal of fixed frequency, it is to be understood that ultrasonic wave sending device is sent super For a part in acoustic signals by the through ultrasonic probe, ultrasonic receiver of air borne, another part passes through air borne and shelter Reach ultrasonic probe, ultrasonic receiver again after forming reflection, what ultrasonic probe, ultrasonic receiver picked up is the superposition letter of direct sound wave and reflected sound Number, audio signal is converted to by A/D, wherein the shelter may include face, human body etc..
In the present embodiment, when mobile terminal is on call, ultrasound can be sent by ultrasonic wave sending device Wave signal, and the ultrasonic signal returned after encountering object by ultrasonic probe, ultrasonic receiver received ultrasonic signal, Huo Zhecong Ultrasonic signal is extracted in the ultrasonic signal (direct sound wave and reflected sound) that ultrasonic probe, ultrasonic receiver receives after encountering object The ultrasonic signal (reflected sound) of return, it is not limited here.
S302: obtaining by the received ultrasonic signal of the ultrasonic probe, ultrasonic receiver, obtains the of the ultrasonic signal One amplitude-frequency data.
Specifically, when ultrasonic probe, ultrasonic receiver receives ultrasonic signal, the frequency spectrum of the ultrasonic signal is obtained, The frequency spectrum is as the first amplitude-frequency data.Wherein, the abbreviation of frequency spectral density is the distribution curve of frequency.
As an implementation, the first amplitude-frequency data can be obtained by discrete Fourier transform, specifically, obtains institute The audio data for stating ultrasonic probe, ultrasonic receiver acquisition, does discrete Fourier transform to the audio data to obtain the audio data Frequency spectrum data, as the first amplitude-frequency data.
Discrete Fourier transform (DFT) is that discrete form is all presented in Fourier transformation in time domain and frequency domain, by time domain The sampling transformation of signal is the sampling in discrete time Fourier transform (DTFT) frequency domain.For discrete audio data samples Point can obtain its frequency spectrum by discrete Fourier transform (DFT).As shown in figure 5, Fig. 5 shows the embodiment of the present application offer Audio data spectrogram, frequency spectrum be frequency spectrum abbreviation, be the distribution curve of frequency, for discrete audio data samples Point can be obtained by discrete Fourier transform, in Fig. 5, be obtained for a segment of audio data by discrete Fourier transform Spectrogram, each point of abscissa respectively corresponds to the frequency values in a reality, and ordinate represents the signal strength of the frequency.
S303: according to the parameter of ultrasonic analysis model, the first amplitude-frequency data are mapped as the second amplitude-frequency data.
Wherein, ultrasonic analysis model can be preset for analyzing the model of ultrasound data.Specifically, should Ultrasonic analysis model can be machine learning algorithm neural network based, and the model is by previously according to ultrasound information Amplitude-frequency data and corresponding motion state label and learnt, have can be obtained according to the amplitude-frequency data of ultrasound information Motion state between the object for emitting the device of ultrasonic signal and reflecting the ultrasonic signal.As a kind of embodiment party Formula, which includes feature extraction algorithm and disaggregated model.
That is, ultrasonic analysis model can obtain corresponding to the amplitude-frequency characteristic of the amplitude-frequency data of ultrasonic signal Motion state, therefore, if it is desirable to be accurately obtained institute using the first amplitude-frequency data as the input of the ultrasonic analysis model Corresponding motion state, need for the first amplitude-frequency data to be mapped as can as ultrasonic analysis model input and can obtain The amplitude-frequency data of corresponding motion state, i.e. the second amplitude-frequency data.That is, the second amplitude-frequency data are as ultrasonic wavelength-division Model is analysed, motion state can be accurately obtained by ultrasonic analysis model.
Wherein, the mode that the first amplitude-frequency data are mapped as the second amplitude-frequency data can be, by weighting or multiplied by some First amplitude-frequency data are changed to the second amplitude-frequency data by the mode of the data such as data change.For example, the first amplitude-frequency data are a, lead to It crosses and increases a constant, is i.e. the mode of a+c obtains the second amplitude-frequency data.In addition, wanting to use according to ultrasonic analysis model Parameter mode, the first amplitude-frequency data are mapped as the second amplitude-frequency data and are specifically introduced in subsequent embodiment.
S304: it using the second amplitude-frequency data as the input of the ultrasonic analysis model, is set with obtaining the electronics Standby motion state.
Wherein, relative motion relation of the motion state between electronic equipment and object, specifically, the ultrasound of electronic equipment The ultrasonic signal that wave sending device issues is received after the reflection of object by the ultrasonic probe, ultrasonic receiver of electronic equipment.
Mobile terminal by ultrasonic wave realize shelter and mobile terminal relative motion state identification may include as Lower method:
(1) time difference method
The scanning signal of the ultrasonic wave sending device interval transmitting supersonic range of mobile terminal, the ultrasonic wave of mobile terminal connect Receiving apparatus receives reflection and through ultrasonic signal, algorithm by compare receive time differences of different ultrasonic signals come It determines the relative distance between shelter and mobile terminal, relative velocity can also be calculated by relative distance, according to opposite Distance and relative velocity can further judge the relative motion state between mobile terminal and shelter.But this method is anti- Interference performance is poor, and when interfering in environment there are some ultrasonic hash, recognition result can generate large error.
(2) phase difference method
The ultrasonic wave sending device of mobile terminal sends continuous ultrasonic signal, receiving end by calculate send signal and The correlation metric between signal is received, determines that ultrasonic wave reaches the phase difference of ultrasonic probe, ultrasonic receiver generation after reflection, The relative distance that shelter and mobile terminal are determined according to phase difference can also calculate relative velocity by relative distance, The relative motion state of mobile terminal and shelter can be further judged according to relative distance and relative velocity.But this method Poor anti jamming capability, when in environment there are some ultrasonic hash interfere when, recognition result can generate large error.
(3) using Doppler effect difference in areas as the method for audio frequency characteristics
The spectrum intensity in frequency range by sending frequency above and below to ultrasonic wave asks poor, obtains Doppler's effect Answer difference in areas:
Doppler_dif=sum_up-sum_low
As shown in fig. 6, the shelter motion state different relative to mobile terminal can cause doppler_dif regular Variation, when shelter with certain speed close to mobile terminal when, doppler_dif obtains biggish positive value；Work as shelter When with certain speed far from mobile terminal, doppler_dif obtains lesser negative value；When shelter is opposite with mobile terminal quiet When only, doppler_dif obtains the value close to 0.
It is possible to further determine that shelter relatively moves the motion state of terminal by the way that positive negative threshold value is arranged.When When doppler_dif is greater than threshold1, it is judged as close state；When doppler_dif is less than threshold2, sentence Break as away state；When doppler_dif is between threshold1 and threshold2, it is judged as normal state.
S305: the electronic equipment is controlled according to the motion state and executes respective operations.
The motion state includes relatively close and is relatively distant from, and specifically, can preset motion state and operation Corresponding relationship.As an implementation, can be electronic equipment and start different application programs is, corresponding to the motion state Operation it is related to the application program.For example, determining electricity when user opens camera application program and enters self-timer mode When relatively close between the front camera and face of sub- equipment, shutter key is pressed, is taken pictures, is determining electronic equipment Front camera and face between when be relatively distant from, exit camera application program.
In the embodiment of the present application, ultrasonic processing method is used in the case where electronic equipment is in call mode, according to electronics The light on and off of the display screen of the distance controlling electronic equipment of equipment and user's ear, specifically, when the motion state is affiliated electricity It when sub- equipment and the object are relatively distant from, control the display screen and is in bright screen state, when the motion state is affiliated electricity When sub- equipment and the object are relatively distant from, control the display screen and be in breath screen state.Wherein, when motion state characterizes the electricity When sub- equipment and object are relatively close, the relative motion relation of characterization of electronic equipment and object is close to movement, that is to say, that when When electronic equipment is on call, ear which is close to the users, it can at the display screen of controlling electronic devices In breath screen state.When motion state characterizes the electronic equipment and object is relatively distant from, the phase of the electronic equipment with object is characterized It is back movement to movement relation, that is to say, that when electronic equipment is on call, ear of the electronic equipment far from user Piece, it can the display screen of controlling electronic devices is in bright screen state.
When the electronic equipment and the object are opposing stationary, control the display screen and keep previous state constant.
In some embodiments, it can be that electronic equipment and object keep quiet that electronic equipment is opposing stationary with object Only or the electronic equipment is identical as the motion state of object, for example, electronic equipment is identical as the movement velocity of object, movement Amplitude is identical, motion frequency is mutually same, it is not limited here.In the present embodiment, when judging result characterize the electronic equipment with When object is opposing stationary, the relative motion relation for characterizing the electronic equipment and object is constant, can control display screen and keeps previous Secondary state is constant, that is to say, that during electronic equipment is on call, when display screen is bright in previous state It when screen state, then keeps display screen to be in bright screen state constant, when display screen is when previous state is breath screen state, then protects It is constant in breath screen state to hold display screen.
Specifically, it is to obtain motion state mode as the method for audio frequency characteristics above by Doppler effect difference in areas Example, if algorithm is judged as close state, the display screen of controlling electronic devices is in breath screen state；Algorithm is judged as away When state, the display screen of controlling electronic devices is in bright screen state；When algorithm is judged as normal state, controlling electronic devices screen The state that tentiform state keeps last is constant.
Therefore, method provided by the present application sends ultrasonic signal by the ultrasonic wave sending device, and by described Ultrasonic probe, ultrasonic receiver receives the ultrasonic signal that the ultrasonic signal returns after encountering object, then, is getting electricity When the amplitude-frequency data of the sub- received ultrasonic signal of equipment, there is no the movements for passing through the amplitude-frequency data acquisition electronics State, but according to the parameter of ultrasonic analysis model, the first amplitude-frequency data are mapped as the second amplitude-frequency data, then, Passing through ultrasonic analysis model, and using the second amplitude-frequency data as the motion state for determining electronic equipment is inputted, therefore, electricity The second amplitude-frequency data that sub- equipment is used uniformly after ultrasonic analysis model and mapping determine the motion state of electronic equipment, then Cause the parameter for acquiring ultrasonic signal different even if the hardware facility of electronic equipment is different, due to using unified ultrasonic wave Analysis model and unified mapping relations can reduce the otherness of the ultrasonic analysis effect of distinct device.
Referring to Fig. 7, showing the embodiment of the present application provides a kind of ultrasonic processing method, set applied to above-mentioned electronics It is standby, this method comprises: S710 to S790.
S710: ultrasonic signal is sent by the ultrasonic wave sending device, and is connect by the ultrasonic probe, ultrasonic receiver Receive the ultrasonic signal that the ultrasonic signal returns after encountering object.
S720: obtaining by the received ultrasonic signal of the ultrasonic probe, ultrasonic receiver, obtains the of the ultrasonic signal One amplitude-frequency data.
S730: the frequency point ranges of the electronic equipment are obtained according to the relative velocity that can be identified.
Wherein, the ultrasonic analysis model is obtained by the training of standard ultrasonic detection device, wherein standard ultrasound Wave detection device can be pre-set ultrasonic detection device, and ultrasonic analysis mould is set in the ultrasonic detection device Type, and according to the characterisitic parameter of standard ultrasonic detection device to the ultrasonic analysis model training, so that the ultrasonic analysis Model can preferably be suitable for the ultrasonic wave tranmitting frequency of standard ultrasonic detection device, specifically, the ultrasonic analysis mould Type is it is contemplated that interference noise in standard ultrasonic detection device, the interference noise include can exist inside above-mentioned equipment The interference noise of supersonic band, such as the supersonic frequency of 21KHz or so can be issued when gyroscope, acceleration sensing sensor work The noise and other noises of section, can preferably obtain institute's testing result, i.e. motion state, specifically, the standard ultrasonic Detection device can be another electronic equipment, that is, the electronic equipment being calibrated.
The parameter of ultrasonic analysis model includes that capable of identifying for the standard ultrasonic detection device is maximum relatively fast Degree, the standard ultrasonic detection device ultrasonic wave tranmitting frequency at reference tranmitting frequency respond etc..
As an implementation, it is assumed that the standard ultrasonic detection device is terminal A, and terminal A also includes ultrasonic wave Sending device and ultrasonic probe, ultrasonic receiver, and can be and belong to same classification, such as electronic equipment and standard with electronic equipment Ultrasonic detection device is all mobile terminal.
Assuming that having completed ultrasonic analysis model (including feature extraction algorithm and disaggregated model) on model terminal A Exploitation, feature extraction algorithm and disaggregated model have completed the debugging of trained and effect.The ultrasonic wave tranmitting frequency of terminal A is f_ Ultrspnic_a, audio sample rate fs, from the ultrasonic wave sending device of terminal A to ultrasonic probe, ultrasonic receiver, i.e., from ultrasonic wave Transmitter to frequency response size of the entire acoustics circuit of sound pick-up at f_ultrspnic_a be amp_ultrspnic_a, algorithm energy The shelter maximum speed of related movement enough identified is vmax, and the data length for carrying out DFT transform is fftlen, is considered in algorithm Frequency range be [f_low_a, f_up_a], the frequency point data range used in DFT transform result be [point_low_a, Point_up_a], total n_a frequency point.
Then parameter of the above-mentioned parameters as ultrasonic analysis model, then the parameter of the ultrasonic analysis model include The ultrasonic wave of the relative velocity that can be identified of the standard ultrasonic detection device, the standard ultrasonic detection device Reference tranmitting frequency response at tranmitting frequency, the data of the discrete Fourier transform of the standard ultrasonic detection device are long Degree, wherein amp_ultrspnic_a is described with reference to tranmitting frequency response, and fftlen indicates the standard ultrasonic detection dress The data length for the discrete Fourier transform set, vmaxFor the relative velocity that can be identified.
The specific implementation of the frequency point ranges of the electronic equipment is then obtained according to the relative velocity that can be identified Mode may include S731 to S733, i.e. step S730 may include S731 to S733.
S731: the tranmitting frequency of the ultrasonic wave sending device is obtained
S732: it is obtained according to the tranmitting frequency of the ultrasonic wave sending device and the relative velocity that can be identified The frequency range of the electronic equipment.
S733: the frequency point of the electronic equipment is determined according to the audio sample rate of the frequency range and the electronic equipment Range.
Wherein, the tranmitting frequency of ultrasonic wave sending device is that the ultrasonic wave of the ultrasonic wave sending device of electronic equipment emits frequency Rate f_ultrspnic_b specifically can determine the every ultrasonic parameters for obtaining electronic equipment, specifically, including electronics is set Ultrasonic wave the tranmitting frequency f_ultrspnic_b, audio sample rate f of standby ultrasonic wave sending devices, from the ultrasound of terminal A Wave sending device to ultrasonic probe, ultrasonic receiver, i.e., from ultrasonic transmitter to sound pick-up entire acoustics circuit in f_ultrspnic_ Frequency response size at b is amp_ultrspnic_b, consistent with the recognition effect of terminal A in order to guarantee, therefore it is required that terminal B energy The shelter maximum speed of related movement enough identified is still vmax, the data length for carrying out DFT transform is also fftlen.
Wherein, the frequency range of electronic equipment is by the range that considers when electronic equipment received ultrasonic signal, i.e., Signal in the frequency range can be received by the ultrasonic probe, ultrasonic receiver of electronic equipment.Wherein, the frequency of the electronic equipment The frequency range that rate range considers when handling ultrasonic signal by the electronic equipment, the frequency point ranges of the electronic equipment are The frequency point ranges considered when the electronic equipment processing ultrasonic signal.
Specifically, which can determine according to above-mentioned formula (1).Specifically, since algorithm can imitate Doppler It should be used as one of the object of feature extraction, therefore, electronics can be obtained according to the relative velocity that algorithm can recognize and set The frequency range and frequency point ranges that standby algorithm should consider.When the shelter that can be recognized is relative to terminal largest motion speed Degree is vmaxWhen, then in above-mentioned formula (1), v0=2vmax, it is assumed that vs=0, and then obtain the ultrasonic probe, ultrasonic receiver of electronic equipment The ultrasonic frequency received are as follows:
Because the frequency range of electronic equipment can be obtained are as follows:
Therefore, by determining the frequency range [f_low_b, f_up_b] of electronic equipment according to above-mentioned formula (3) and (4), Wherein, f_ultrspnic_b is the tranmitting frequency of the ultrasonic wave sending device, vmaxIt is opposite for the maximum that can be identified Speed.
Then, the audio sample rate further according to the frequency range and the electronic equipment determines the frequency of the electronic equipment Point range.As an implementation, the frequency point model of electronic equipment is determined in conjunction with above-mentioned formula (3) and (4) and following formula It encloses.
Wherein, which is one group of audio data x comprising fftlen discrete data point, by discrete Fourier transform (DFT) its amplitude-frequency vector X is obtained.In above-mentioned formula (5), fs is sample rate, and X [n] represents the intensity of frequency fn, ceil indicate to Upper rounding.
The then frequency point ranges of identified electronic equipment are as follows:
It then can determine the frequency point ranges of electronic equipment according to above-mentioned formula (6) and (7), wherein the electronic equipment Frequency point ranges are [point_low_b, point_up_b], and ceil expression rounds up, and fftlen indicates the standard ultrasonic The data length of the discrete Fourier transform of detection device.
S740: according to the frequency point ranges of the electronic equipment, the reference tranmitting frequency response and the electronic equipment Ultrasonic wave tranmitting frequency at frequency response to the first amplitude-frequency data calibration, calibrate amplitude-frequency data to obtain.
Due to the ultrasonic analysis model training completion not yet of electronic equipment, if directly adopted using the electronic equipment If the audio data of collection carries out the prediction of motion state, not can avoid the interference of noise and cause result inaccurate, need by The first amplitude-frequency data calibration, i.e., according to the reference tranmitting frequency of terminal A response and the electronic equipment frequency point ranges and Frequency response at the ultrasonic wave tranmitting frequency of the electronic equipment is to the first amplitude-frequency data calibration, to the first amplitude-frequency number According to calibration, specifically, the difference characteristic between electronic equipment and terminal A can be determined, according to the difference characteristic to first width Frequency data calibration, so that the calibration amplitude-frequency data that the first amplitude-frequency data obtain after calibration can satisfy on terminal A Use the requirement of above-mentioned ultrasonic analysis model.For example, the difference characteristic is a compensation when obtaining above-mentioned difference characteristic First amplitude-frequency data are increased the offset by value, calibrate amplitude-frequency data to obtain.
Then according to frequency point ranges of the electronic equipment, described with reference to the super of tranmitting frequency response and the electronic equipment To the first amplitude-frequency data calibration, i.e. the step of S740 includes: S741 to S745 for frequency response at sound wave tranmitting frequency.
S741: the audio data of the ultrasonic signal is obtained.
Specifically, a part in ultrasonic signal that ultrasonic wave sending device is sent passes through the through ultrasonic wave of air borne Reception device, another part reach ultrasonic probe, ultrasonic receiver after forming reflection by air borne and shelter again, and ultrasonic wave connects What receiving apparatus picked up is the superposed signal of direct sound wave and reflected sound, is converted to audio data by A/D.
S742: the audio is intercepted according to the data length of the discrete Fourier transform of the standard ultrasonic detection device Data, to obtain the first amplitude-frequency data.
The audio data of terminal B is obtained into multiframe audio data by sub-frame processing, wherein the data of every frame audio data Length is fftlen, then does DFT transform to every frame audio data again and obtains the first amplitude-frequency data, is i.e. the length of DFT transform is fftlen。
S743: in interception the first amplitude-frequency data, the amplitude-frequency data between the frequency point ranges of the electronic equipment, As amplitude-frequency data to be calibrated.
Then the amplitude-frequency data composition of pth oint_low_b to point_up_b frequency points in the first amplitude-frequency data is intercepted again The amplitude-frequency vector of one n_b:
Amp_b=[X [point_low_b] X [point_low_b+1] ... X [point_up_b]]
Then the amplitude-frequency vector is the array for having multiple amplitude-frequency data to constitute, which is denoted as amplitude-frequency number to be calibrated According to.
S744: it obtains described with reference to tranmitting frequency response and the frequency sound at the ultrasonic wave tranmitting frequency of the electronic equipment Difference between answering, as calibration value.
S745: according to the calibration value to the amplitude-frequency data calibration to be calibrated, amplitude-frequency data are calibrated to obtain.
Calibration amplitude-frequency data are obtained according to the following formula:
Amp_b_calib [i]=amp_b [i]+calib i=1,2 ..., n_b (8)
Wherein, calib=amp_ulrtasonic_a-amp_ulrtasonic_b, amp_ultrspnic_a are the ginseng Tranmitting frequency response is examined, amp_ultrspnic_b is the frequency response at the ultrasonic wave tranmitting frequency of electronic equipment, amp_b [i] For amplitude-frequency data to be calibrated, amp_b_calib [i] is calibration amplitude-frequency data, then calib is above-mentioned calibration value.
S750: the amplitude frequency curve of the electronic equipment, the amplitude frequency curve distribution are determined according to the calibration amplitude-frequency data Multiple frequency points, and the corresponding amplitude of each frequency point.
By handling to have obtained the amplitude-frequency vector amp_b_calib of the electronic equipment by calibration above, next need The amplitude-frequency vector amp_a of n_a point is obtained by the amplitude-frequency vector amp_b_calib of n_b point.As an implementation, if A fixed polynomial curve, with polynomial curve fitting amplitude-frequency vector amp_b_calib, then, from the polynomial curve Interpolation obtains the amplitude-frequency vector amp_a of n_a point, so as to complete the mapping of amp_b_calib to amp_a, as shown in Figure 10.
Specifically, it is assumed that the multinomial is following form:
Y=ax3+bx2+cx+d (9)
Multinomial coefficient a, b, c and d can be calculated by amplitude-frequency vector amp_b_calib using least square method, Certainly the methods of interpolation method, polishing method can also be used.Interpolation method is estimated by value condition of the function at limited point Approximation of the function at other points.Different interpolation formulas is chosen in interpolation method to meet actual operation demand, such as three moments of flexure Method, method of three turning angles method etc..Polishing method is the data fitting method for adapting to convexity-preserving and requiring.Integral can change the smoothness of function, And differential is the inverse operation of integral, integrates to function, then carries out differential again, function can be restored.And difference approximation For differential, difference is being carried out to after functional integration, approximation to function can restored, this transformation is exactly to polish.Which is specifically used Kind method, can set according to actual needs.
Curve after being then fitted is as shown in figure 11, it can be seen that each amplitude-frequency vector of electronic equipment is respectively positioned on or closely Like being located on the curve, then the curve can be as the amplitude frequency curve of the electronic equipment.
S760: amplitude frequency curve of each sampling frequency point in the electronic equipment of the standard ultrasonic detection device is determined In corresponding target frequency point and the corresponding amplitude of target frequency point.
Assuming that the frequency point of terminal A is point_a, then point_a can be obtained by way of linear interpolation in electronic equipment Amplitude frequency curve in corresponding target frequency point specifically determine each of described standard ultrasonic detection device according to the following formula Sample frequency point target frequency point corresponding in the amplitude frequency curve of the electronic equipment:
Wherein, [point_low_b, point_up_b] is the frequency point ranges of electronic equipment, and point_a is super for the standard The sampling frequency point of acoustic detector, x_a are point_a target frequency point corresponding in the amplitude frequency curve of electronic equipment.
The then amplitude of target frequency point corresponding to point_a are as follows:
Amp_a [point_a]=a (x_a)3+b(x_a)2+c(x_a)+d (11)
S770: the second amplitude-frequency data are determined according to each target frequency point and the corresponding amplitude of target frequency point.
Then according to above-mentioned mode, determine that each sampling frequency point of the standard ultrasonic detection device is set in the electronics Corresponding target frequency point and the corresponding amplitude of target frequency point in standby amplitude frequency curve, to just can determine each target Frequency point and the corresponding amplitude of each target frequency point, then using each target frequency point and the corresponding amplitude of target frequency point as second Amplitude-frequency data.To which the second amplitude-frequency data are just set as each sampling frequency point of the standard ultrasonic detection device with electronics Amplitude-frequency data after the mapping of the first standby amplitude-frequency data, that is to say, that the ultrasonic probe, ultrasonic receiver institute of electronic equipment is received Frequency point number corresponding to each frequency point and the frequency point in the corresponding second amplitude-frequency data of ultrasonic signal, can be in standard It is determined in the amplitude-frequency data of ultrasonic detection device and arrives corresponding frequency point number and corresponding amplitude, is i.e. standard ultrasonic detection dress The each sampling frequency point set can find corresponding target frequency point and corresponding in the amplitude frequency curve of the electronic equipment Amplitude, i.e. the two complete frequency point mapping.
S780: it using the second amplitude-frequency data as the input of the ultrasonic analysis model, is set with obtaining the electronics Standby motion state.
Using amp_a as the input of ultrasonic analysis model, obtained by feature extraction algorithm on terminal A and disaggregated model Motion state judging result to shelter relative to electronic equipment.
S790: the electronic equipment is controlled according to the motion state and executes respective operations.
Therefore, the embodiment of the present application realizes the mapping of the frequency spectrum between different model terminal, can be by the spy in terminal A Levying extraction algorithm and disaggregated model, progress feature mentions again applied to being eliminated in terminal B in terminal B compared to existing scheme The work for taking algorithm debugging and model training, can greatly save manpower and time, while ensure that different model terminal recognition The consistency of effect.
Figure 12 is please referred to, it illustrates a kind of structural frames of ultrasonic treatment unit 1200 provided by the embodiments of the present application Figure, the apparatus may include: receiving unit 1210, acquiring unit 1220, map unit 1230, detection unit 1240 and processing are single Member 1250.
Receiving unit 1210 for sending ultrasonic signal by the ultrasonic wave sending device, and passes through the ultrasound Wave receiving device receives the ultrasonic signal that the ultrasonic signal returns after encountering object.
Acquiring unit 1220 obtains described super for obtaining by the received ultrasonic signal of the ultrasonic probe, ultrasonic receiver First amplitude-frequency data of acoustic signals.
The first amplitude-frequency data are mapped as the parameter according to ultrasonic analysis model by map unit 1230 Two amplitude-frequency data.
Specifically, as shown in figure 13, the map unit 1230, comprising: frequency point determines subelement 1231, calibration subelement 1232, subelement 12303, frequency point mapping subelement 1234 and amplitude-frequency are fitted and determines subelement 1235.
Frequency point determines subelement 1231, for obtaining the electronic equipment according to the relative velocity that can be identified Frequency point ranges, wherein considered when the frequency point ranges of electronic equipment electronic equipment processing ultrasonic signal Frequency point ranges.
Specifically, frequency point determines that subelement 1231 is also used to obtain the tranmitting frequency of the ultrasonic wave sending device；According to The tranmitting frequency of the ultrasonic wave sending device and the relative velocity that can be identified obtain the frequency of the electronic equipment Rate range, wherein the frequency that the frequency range of the electronic equipment considers when handling ultrasonic signal by the electronic equipment Range；The frequency point ranges of the electronic equipment are determined according to the audio sample rate of the frequency range and the electronic equipment.
Wherein, the frequency range of the electronic equipment is determined according to the following formula:
Wherein, the frequency range of the electronic equipment is [f_low_b, f_up_b], and f_ultrspnic_b is the ultrasound The tranmitting frequency of wave sending device, vmaxFor the relative velocity that can be identified；
The frequency point ranges of the electronic equipment are determined according to the following formula:
Wherein, the frequency point ranges of the electronic equipment are [point_low_b, point_up_b], and ceil expression takes upwards Whole, fftlen indicates the data length of the discrete Fourier transform of the standard ultrasonic detection device.
Calibrate subelement 1232, for according to the frequency point ranges of the electronic equipment, it is described with reference to tranmitting frequency respond with And the frequency response at the ultrasonic wave tranmitting frequency of the electronic equipment is to the first amplitude-frequency data calibration, to obtain calibration width Frequency evidence.
Specifically, calibration subelement 1232 is also used to obtain the audio data of the ultrasonic signal；According to the standard The data length of the discrete Fourier transform of ultrasonic detection device intercepts the audio data, to obtain the first amplitude-frequency data； It intercepts in the first amplitude-frequency data, the amplitude-frequency data between the frequency point ranges of the electronic equipment, as width to be calibrated Frequency evidence；It obtains between the frequency response with reference at the ultrasonic wave tranmitting frequency of tranmitting frequency response and the electronic equipment Difference, as calibration value；According to the calibration value to the amplitude-frequency data calibration to be calibrated, amplitude-frequency data are calibrated to obtain.
Wherein, calibration amplitude-frequency data are obtained according to the following formula:
Amp_b_calib [i]=amp_b [i]+calib i=1,2 ..., n_b
Wherein, calib=amp_ulrtasonic_a-amp_ulrtasonic_b, amp_ultrspnic_a are the ginseng Tranmitting frequency response is examined, amp_ultrspnic_b is the frequency response at the ultrasonic wave tranmitting frequency of electronic equipment, amp_b [i] For amplitude-frequency data to be calibrated, amp_b_calib [i] is calibration amplitude-frequency data.
It is fitted subelement 1233, for determining the amplitude frequency curve of the electronic equipment, institute according to the calibration amplitude-frequency data It states amplitude frequency curve and is distributed multiple frequency points, and the corresponding amplitude of each frequency point.
Frequency point maps subelement 1234, for determining each sampling frequency point of the standard ultrasonic detection device described Corresponding target frequency point and the corresponding amplitude of target frequency point in the amplitude frequency curve of electronic equipment.
Wherein, determine each sampling frequency point of the standard ultrasonic detection device in the electronic equipment according to the following formula Corresponding target frequency point in amplitude frequency curve:
Wherein, [point_low_b, point_up_b] is the frequency point ranges of electronic equipment, and point_a is super for the standard The sampling frequency point of acoustic detector, x_a are point_a target frequency point corresponding in the amplitude frequency curve of electronic equipment.
Amplitude-frequency determines subelement 1235, for determining institute according to each target frequency point and the corresponding amplitude of target frequency point State the second amplitude-frequency data.
Detection unit 1240, for using the second amplitude-frequency data as the input of the ultrasonic analysis model, to obtain Take the motion state of the electronic equipment.
Processing unit 1250 executes respective operations for controlling the electronic equipment according to the motion state.
Specifically, processing unit 1250 be also used to be controlled according to the motion state display screen be in bright screen state or Cease screen state.
It is apparent to those skilled in the art that for convenience and simplicity of description, foregoing description device and The specific work process of module, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, the mutual coupling of module can be electrical property, mechanical or other The coupling of form.
It, can also be in addition, can integrate in a processing module in each functional module in each embodiment of the application It is that modules physically exist alone, can also be integrated in two or more modules in a module.Above-mentioned integrated mould Block both can take the form of hardware realization, can also be realized in the form of software function module.
Figure 14 is please referred to, it illustrates the structural block diagrams of a kind of electronic equipment provided by the embodiments of the present application.The electronics is set Standby 100, which can be smart phone, tablet computer, e-book etc., can run the electronic equipment of application program.Electricity in the application Sub- equipment 100 may include one or more such as lower component: processor 110, memory 120, display screen 130, ultrasonic wave are sent Device 140, ultrasonic probe, ultrasonic receiver 150 and one or more application program, wherein one or more application programs can be by It is stored in memory 120 and is configured as being executed by one or more processors 110, one or more programs are configured to hold Row method as described in preceding method embodiment.
Processor 110 may include one or more processing core.Processor 110 is whole using various interfaces and connection Various pieces in a electronic equipment 100, by run or execute the instruction being stored in memory 120, program, code set or Instruction set, and the data being stored in memory 120 are called, execute the various functions and processing data of electronic equipment 100.It can Selection of land, processor 110 can use Digital Signal Processing (Digital Signal Processing, DSP), field-programmable Gate array (Field-Programmable Gate Array, FPGA), programmable logic array (Programmable Logic Array, PLA) at least one of example, in hardware realize.Processor 110 can integrating central processor (Central Processing Unit, CPU), in image processor (Graphics Processing Unit, GPU) and modem etc. One or more of combinations.Wherein, the main processing operation system of CPU, user interface and application program etc.；GPU is for being responsible for Show the rendering and drafting of content；Modem is for handling wireless communication.It is understood that above-mentioned modem It can not be integrated into processor 110, be realized separately through one piece of communication chip.
Memory 120 may include random access memory (Random Access Memory, RAM), also may include read-only Memory (Read-Only Memory).Memory 120 can be used for store instruction, program, code, code set or instruction set.It deposits Reservoir 120 may include storing program area and storage data area, wherein the finger that storing program area can store for realizing operating system Enable, for realizing at least one function instruction (such as touch function, sound-playing function, image player function etc.), be used for Realize the instruction etc. of following each embodiments of the method.Storage data area can also store the number that terminal 100 is created in use According to (such as phone directory, audio, video data, chat record data) etc..
Display screen 130 is used for the information and the electronic equipment 100 for showing information input by user, being supplied to user Various graphical user interface, these graphical user interface can be by figure, text, icon, number, video and any combination thereof It constitutes, in an example, which can be liquid crystal display (Liquid Crystal Display, LCD), May be Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED), it is not limited here.
Figure 15 is please referred to, it illustrates a kind of structural frames of computer readable storage medium provided by the embodiments of the present application Figure.Program code is stored in the computer-readable medium 1500, said program code can be called by processor and execute above-mentioned side Method described in method embodiment.
Computer readable storage medium 1500 can be (the read-only storage of electrically erasable of such as flash memory, EEPROM Device), the electronic memory of EPROM, hard disk or ROM etc.Optionally, computer readable storage medium 1500 includes non-volatile Property computer-readable medium (non-transitory computer-readable storage medium).It is computer-readable Storage medium 1500 has the memory space for the program code 1510 for executing any method and step in the above method.These programs Code can read or be written to this one or more computer program from one or more computer program product In product.Program code 1510 can for example be compressed in a suitable form.
Shown in sum up, method provided by the present application sends ultrasonic signal by the ultrasonic wave sending device, and passes through The ultrasonic probe, ultrasonic receiver receives the ultrasonic signal that the ultrasonic signal returns after encountering object, then, is obtaining To the received ultrasonic signal of electronic equipment amplitude-frequency data when, there is no by the amplitude-frequency data acquisition electronics Motion state, but according to the parameter of ultrasonic analysis model, the first amplitude-frequency data are mapped as the second amplitude-frequency data, so Afterwards, passing through ultrasonic analysis model, and using the second amplitude-frequency data as the motion state for inputting determining electronic equipment, because This, the second amplitude-frequency data that electronic equipment is used uniformly after ultrasonic analysis model and mapping determine the movement shape of electronic equipment State, even if then the hardware facility of electronic equipment is different and cause the parameter for acquiring ultrasonic signal different, due to using unified Ultrasonic analysis model and unified mapping relations can reduce the otherness of the ultrasonic analysis effect of distinct device.
By taking above-mentioned terminal A and electronic equipment are terminal B as an example, the embodiment of the present application is realized between different model terminal Frequency spectrum mapping, can by terminal A feature extraction algorithm and disaggregated model be applied to terminal B in, compared to existing scheme Eliminate in terminal B again carry out feature extraction algorithm debugging and model training work, can greatly save manpower and when Between, while ensure that the consistency of different model terminal recognition effect.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the application, rather than its limitations；Although The application is described in detail with reference to the foregoing embodiments, those skilled in the art are when understanding: it still can be with It modifies the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；And These are modified or replaceed, do not drive corresponding technical solution essence be detached from each embodiment technical solution of the application spirit and Range.

Claims (11)

1. a kind of ultrasonic processing method, which is characterized in that be applied to electronic equipment, the electronic equipment includes that ultrasonic wave is sent Device and ultrasonic probe, ultrasonic receiver, which comprises
Ultrasonic signal is sent by the ultrasonic wave sending device, and the ultrasound is received by the ultrasonic probe, ultrasonic receiver The ultrasonic signal that wave signal returns after encountering object；
It obtains by the received ultrasonic signal of the ultrasonic probe, ultrasonic receiver, obtains the first amplitude-frequency number of the ultrasonic signal According to；
According to the parameter of ultrasonic analysis model, the first amplitude-frequency data are mapped as the second amplitude-frequency data；
Using the second amplitude-frequency data as the input of the ultrasonic analysis model, to obtain the movement shape of the electronic equipment State；
The electronic equipment, which is controlled, according to the motion state executes respective operations.
2. according to the method described in claim 1, the ultrasonic analysis model is trained by standard ultrasonic detection device It arrives, the parameter of the ultrasonic analysis model includes the maximum speed relatively that the standard ultrasonic detection device can identify It spends, the reference tranmitting frequency response at the ultrasonic wave tranmitting frequency of the standard ultrasonic detection device；It is described according to ultrasonic wave The first amplitude-frequency data are mapped as the second amplitude-frequency data by the parameter of analysis model, comprising:
The frequency point ranges of the electronic equipment are obtained according to the relative velocity that can be identified, wherein the electronics is set The frequency point ranges that standby frequency point ranges consider when handling ultrasonic signal by the electronic equipment；
It is sent out according to the frequency point ranges of the electronic equipment, the ultrasonic wave with reference to tranmitting frequency response and the electronic equipment Frequency response at radio frequency rate calibrates amplitude-frequency data to the first amplitude-frequency data calibration to obtain；
Determine that the amplitude frequency curve of the electronic equipment, the amplitude frequency curve are distributed multiple frequency points according to the calibration amplitude-frequency data, And the corresponding amplitude of each frequency point；
Determine that each sampling frequency point of the standard ultrasonic detection device is corresponding in the amplitude frequency curve of the electronic equipment Target frequency point and the corresponding amplitude of target frequency point；
The second amplitude-frequency data are determined according to each target frequency point and the corresponding amplitude of target frequency point.
3. according to the method described in claim 2, it is characterized in that, described obtain according to the relative velocity that can be identified Take the frequency point ranges of the electronic equipment, comprising:
Obtain the tranmitting frequency of the ultrasonic wave sending device；
The electronics is obtained according to the tranmitting frequency of the ultrasonic wave sending device and the relative velocity that can be identified The frequency range of equipment, wherein the frequency range of the electronic equipment is that the electronic equipment handles ultrasonic signal Shi Suokao The frequency range of worry；
The frequency point ranges of the electronic equipment are determined according to the audio sample rate of the frequency range and the electronic equipment.
4. according to the method described in claim 3, it is characterized in that, the tranmitting frequency according to the ultrasonic wave sending device The frequency range of the electronic equipment is obtained with the relative velocity that can be identified；According to the frequency range and described The audio sample rate of electronic equipment determines the frequency point ranges of the electronic equipment, comprising:
The frequency range of the electronic equipment is determined according to the following formula:
Wherein, the frequency range of the electronic equipment is [f_low_b, f_up_b], and f_ultrspnic_b is ultrasonic wave hair Send the tranmitting frequency of device, vmaxFor the relative velocity that can be identified；
The frequency point ranges of the electronic equipment are determined according to the following formula:
Wherein, the frequency point ranges of the electronic equipment are [point_low_b, point_up_b], and ceil expression rounds up, Fftlen indicates the data length of the discrete Fourier transform of the standard ultrasonic detection device.
5. according to the method described in claim 2, it is characterized in that, the frequency point ranges according to the electronic equipment, described With reference to the frequency response at the ultrasonic wave tranmitting frequency of tranmitting frequency response and the electronic equipment to the first amplitude-frequency number According to calibration, comprising:
Obtain the audio data of the ultrasonic signal；
The audio data is intercepted according to the data length of the discrete Fourier transform of the standard ultrasonic detection device, with To the first amplitude-frequency data；
It intercepts in the first amplitude-frequency data, the amplitude-frequency data between the frequency point ranges of the electronic equipment, as to school Quasi- amplitude-frequency data；
It obtains between the frequency response with reference at the ultrasonic wave tranmitting frequency of tranmitting frequency response and the electronic equipment Difference, as calibration value；
According to the calibration value to the amplitude-frequency data calibration to be calibrated, amplitude-frequency data are calibrated to obtain.
6. according to the method described in claim 5, it is characterized in that, it is described according to the calibration value to the amplitude-frequency number to be calibrated According to calibration, amplitude-frequency data are calibrated to obtain, comprising:
Calibration amplitude-frequency data are obtained according to the following formula:
Amp_b_calib [i]=amp_b [i]+calib i=1,2 ..., n_b
Wherein, calib=amp_ulrtasonic_a-amp_ulrtasonic_b, amp_ultrspnic_a are described with reference to hair Penetrate frequency response, amp_ultrspnic_b is the frequency response at the ultrasonic wave tranmitting frequency of electronic equipment, amp_b [i] be to Amplitude-frequency data are calibrated, amp_b_calib [i] is calibration amplitude-frequency data.
7. according to the method described in claim 2, it is characterized in that, each of described standard ultrasonic detection device of the determination Sample frequency point target frequency point corresponding in the amplitude frequency curve of the electronic equipment, comprising:
Amplitude frequency curve of each sampling frequency point in the electronic equipment of the standard ultrasonic detection device is determined according to the following formula In corresponding target frequency point:
Wherein, [point_low_b, point_up_b] is the frequency point ranges of electronic equipment, and point_a is the standard ultrasonic The sampling frequency point of detection device, x_a are point_a target frequency point corresponding in the amplitude frequency curve of electronic equipment.
8. described according to institute the method according to claim 1, wherein the electronic equipment further includes display screen It states motion state and controls the electronic equipment execution respective operations, comprising:
The display screen, which is controlled, according to the motion state is in bright screen state or breath screen state.
9. a kind of ultrasonication, which is characterized in that be applied to electronic equipment, the electronic equipment includes ultrasonic wave sending device And ultrasonic probe, ultrasonic receiver, the ultrasonic treatment unit include:
Receiving unit for sending ultrasonic signal by the ultrasonic wave sending device, and receives dress by the ultrasonic wave It sets and receives the ultrasonic signal that the ultrasonic signal returns after encountering object；
Acquiring unit obtains the ultrasonic signal for obtaining by the received ultrasonic signal of the ultrasonic probe, ultrasonic receiver The first amplitude-frequency data；
The first amplitude-frequency data are mapped as the second amplitude-frequency number for the parameter according to ultrasonic analysis model by map unit According to；
Detection unit, for using the second amplitude-frequency data as the input of the ultrasonic analysis model, to obtain the electricity The motion state of sub- equipment；
Processing unit executes respective operations for controlling the electronic equipment according to the motion state.
10. a kind of electronic equipment characterized by comprising
One or more processors；
Memory；
Ultrasonic wave sending device and ultrasonic probe, ultrasonic receiver；
One or more application program, wherein one or more of application programs are stored in the memory and are configured To be executed by one or more of processors, one or more of programs are configured to carry out as claim 1-8 is any Method described in.
11. a kind of computer-readable medium, which is characterized in that be stored with program generation in the computer-readable storage medium Code, said program code can be called by processor and execute any one of claim 1-8 the method.
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