CN105204649B - A kind of method and device of mobile terminal unblock - Google Patents

A kind of method and device of mobile terminal unblock Download PDF

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Publication number
CN105204649B
CN105204649B CN201510671403.3A CN201510671403A CN105204649B CN 105204649 B CN105204649 B CN 105204649B CN 201510671403 A CN201510671403 A CN 201510671403A CN 105204649 B CN105204649 B CN 105204649B
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China
Prior art keywords
ultrasonic
signal
key position
mobile terminal
current
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CN201510671403.3A
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Chinese (zh)
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CN105204649A (en
Inventor
张海平
周意保
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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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
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/06—Systems determining the position data of a target
    • 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
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/04—Systems determining presence of a target
    • 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
    • G01S15/87—Combinations of sonar systems
    • G01S15/876—Combination of several spaced transmitters or receivers of known location for determining the position of a transponder or a reflector
    • 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

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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)
  • Telephone Function (AREA)
  • Position Input By Displaying (AREA)

Abstract

The invention discloses a kind of method and device of mobile terminal unblock.Methods described includes：By setting multiple ultrasonic sensors on mobile terminals to launch ultrasonic signal；It is determined that detecting the ultrasonic sensor of the ultrasonic reflections signal of signal value changes, the ultrasonic reflections signal detected according to the ultrasonic sensor of determination determines that the gesture of user corresponds to the key position of unlock interface；Determine whether to be unlocked mobile terminal according to the password factor on the key position of determination.Invention achieves the gesture of rapid, accurate identification user, the effect of maloperation caused by avoiding interference signal, the application experience of user is improved.

Description

A kind of method and device of mobile terminal unblock
Technical field
The present embodiments relate to unlocking screen technology, more particularly to a kind of method and device of mobile terminal unblock.
Background technology
At present, many electronic products are all equipped with intelligent identification technology, particularly gesture identification, and application is very universal, such as existing Some mobile phones, many mobile phone producers with the addition of gesture identification function in mobile phone, and user need not contact mobile phone, need to only make corresponding Gesture mobile phone can be operated, such as carry out mobile phone unblock every sky input password, pass through the non-contacting control page turning of gesture Deng.
In the mode of existing non-contact gesture control unblock, most of gestures that user is obtained using camera, lead to The mode for crossing image procossing extracts the gesture motion track of user to be unlocked operation.Which needs to handle substantial amounts of image Information, and algorithm is more complicated, the computing resource of occupancy mobile phone that will necessarily be excessively and cause the reduction of gesture identification speed.It is also favourable The mode of terminal unlocking is carried out with infrared sensor detection user gesture, infrared ray touches the finger of user in transmitting procedure Finger pulp can reflect, reflected signal transmits and returns to infrared sensor in atmosphere, pass through infrared emitting signal and reflection believe Number control mobile terminal be unlocked operation.But infrared ray can be by remaining in gesture in addition to the finger pulp of finger toward contact Position is reflected, and this mode easily produces interference signal because gesture area is larger, and then causes the recognition accuracy of gesture to be dropped It is low, maloperation is easily produced, user experience is bad.
The content of the invention
The present invention provides a kind of method and device of mobile terminal unblock, to realize rapid, accurately identification user hand Gesture, maloperation caused by avoiding interference signal, lift the application experience of user.
In a first aspect, the embodiments of the invention provide a kind of method of mobile terminal unblock, including：
By setting multiple ultrasonic sensors on mobile terminals to launch ultrasonic signal；
It is determined that detecting the ultrasonic sensor of the ultrasonic reflections signal of signal value changes, passed according to the ultrasonic wave of determination The ultrasonic reflections signal that sensor detects determines that the gesture of user corresponds to the key position of unlock interface；
Determine whether to be unlocked mobile terminal according to the password factor on the key position of determination.
Second aspect, the embodiment of the present invention additionally provide a kind of method of mobile terminal unblock, set on mobile terminals There are multiple ultrasonic sensors, and each ultrasonic sensor is initially in the dormancy shape do not launched and do not receive ultrasonic wave State；Methods described includes：
When detecting unlock instruction, the reading that the puts in order unblock of the password factor included according to unlocking pin is close It is right to wake up key position institute of the current password factor in unlock interface as the current password factor for a password factor in code The ultrasonic sensor group answered, make each ultrasonic sensor transmitting ultrasonic signal in the ultrasonic sensor group that is waken up；
It is super in preset threshold range according to whether the ultrasonic sensor of transmitting ultrasonic signal receives signal value Sound wave reflected signal, determines whether user correctly presses key position of the current password factor in unlock interface；
Whether mobile terminal is unlocked according to determination result judgement.
The third aspect, the embodiment of the present invention additionally provide a kind of device of mobile terminal unblock, and the device includes：
Ultrasonic signal transmitter unit, for by setting multiple ultrasonic sensors on mobile terminals to launch ultrasound Ripple signal；
Key position determining unit, the supersonic sensing of the ultrasonic reflections signal for determining to detect signal value changes Device, the ultrasonic reflections signal detected according to the ultrasonic sensor of determination determine that the gesture of user corresponds to unlock interface Key position；
Identifying unit is unlocked, the password factor on the key position according to determination determines whether to carry out mobile terminal Unblock.
Fourth aspect, the embodiment of the present invention additionally provide a kind of device of mobile terminal unblock, are configured on mobile terminal, Multiple ultrasonic sensors are additionally provided with mobile terminals, and each ultrasonic sensor is initially in and does not launch and do not connect Receive the resting state of ultrasonic wave；The device includes：
Ultrasonic sensor wakeup unit, for when detecting unlock instruction, according to the password that unlocking pin includes because A password factor in the reading unlocking pin that puts in order of son wakes up the current password factor as the current password factor Ultrasonic sensor group corresponding to key position in unlock interface, make each super in the ultrasonic sensor group that is waken up Sonic sensor launches ultrasonic signal；
Pressing keys determining unit, for whether receiving signal value according to the ultrasonic sensor of transmitting ultrasonic signal Ultrasonic reflections signal in preset threshold range, determines whether user correctly presses the current password factor in unlock interface Key position；
Unlocking unit, for whether being unlocked according to determination result judgement to mobile terminal.
The present invention is by setting multiple ultrasonic sensors on mobile terminals to launch ultrasonic signal, it is determined that detecting The ultrasonic sensor of the ultrasonic reflections signal of signal value changes, the ultrasonic wave detected according to the ultrasonic sensor of determination Reflected signal determines that the gesture of user corresponds to the key position of unlock interface, according to the password factor on the key position of determination Determine whether to be unlocked mobile terminal, solve the recognition speed caused by amount of calculation is larger in existing Gesture Recognition Algorithm The problem of slower, and because the presence of interference signal cause recognition accuracy not high the problem of, reached rapid, accurately identification The gesture of user, the effect of maloperation caused by avoiding interference signal, improve the application experience of user.
Brief description of the drawings
Fig. 1 a are a kind of flow charts of the method for mobile terminal unblock in the embodiment of the present invention one；
Fig. 1 b are the structural representations of ultrasonic sensor in the embodiment of the present invention；
Fig. 1 c are the positions that ultrasonic sensor is set in the method that a kind of mobile terminal in the embodiment of the present invention one unlocks Put schematic diagram；
Fig. 2 is stream the step of determining key position in a kind of method of mobile terminal unblock in the embodiment of the present invention two Cheng Tu；
Fig. 3 is a kind of structural representation of the device of mobile terminal unblock in the embodiment of the present invention three；
Fig. 4 is a kind of flow chart of the method for mobile terminal unblock in the embodiment of the present invention four；
Fig. 5 is to determine whether user inputs correctly in a kind of method of mobile terminal unblock in the embodiment of the present invention five The flow chart of the step of key position；
Fig. 6 is a kind of structural representation of the device of mobile terminal unblock in the embodiment of the present invention six.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that in order to just Part related to the present invention rather than entire infrastructure are illustrate only in description, accompanying drawing.
Embodiment one
Fig. 1 is a kind of flow chart of the method for mobile terminal unblock that the embodiment of the present invention one provides, and the present embodiment can fit For identifying the upper lift of finger and the action pushed in same gesture, gesture pair is determined according to the change of the gesture identified The key position answered, to control the situation that mobile terminal unlocks, this method can be performed by the device that mobile terminal unlocks, should Device is configured in mobile terminal, and the device passes through the non-contacting knowledge of the ultrasonic sensor being arranged on mobile terminal Other gesture.The method of the mobile terminal unblock specifically comprises the following steps：
Step 110, multiple ultrasonic sensors transmitting ultrasonic signal by setting on mobile terminals.
Wherein, the ultrasonic sensor includes at least one receiving terminal and at least one transmitting terminal, and receiving terminal with Transmitting terminal is arranged in pairs at least two faces in addition to the back side in the mobile terminal.For example, with reference to shown in Fig. 1 b, the transmitting The loudspeaker 101 for mobile terminal is held, the receiving terminal is the microphone 102 of mobile terminal.The loudspeaker 101 is launched super Acoustic signals are reflected by the barrier when by barrier, connect by microphone 102 by glass cover-plate outflow mobile terminal Receive ultrasonic reflections signal.In the mobile terminal, one or more ultrasounds are set respectively at least two faces in addition to the back side Wave sensor, and each key position in unlock interface is corresponding with least two ultrasonic sensors respectively.For example, Fig. 1 c Provide a kind of schematic diagram of the position of the ultrasonic sensor on mobile terminal.Set in the front of mobile terminal and side super Sonic sensor, it is appreciated that the position of the ultrasonic sensor is not limited to the position shown in Fig. 1 c, it can also be Ultrasonic sensor, or top surface, bottom surface and side is set to be respectively provided with a variety of settings such as ultrasonic sensor in bottom surface and side Mode, as long as be able to ensure that can be to should determine that a unlock interface in the presence of at least two ultrasonic sensors for the set-up mode On key position, wherein, can be shown round region or other shapes of figure for each key position Region, user is corresponded to key position and do gesture, avoid the error detection caused by user gesture deviates key position.In Fig. 1 c In, set ultrasonic sensor a, d to correspond to the numeral 1 in unlock interface, set ultrasonic sensor b, d to correspond in unlock interface Numeral 2, set ultrasonic sensor c, d to correspond to numeral 3 in unlock interface.Passed according to above rheme in positive ultrasonic wave Sensor is that starting point makees downwards vertical line along plane where screen, makees vertical line to the right as starting point using the ultrasonic sensor positioned at side, Rule using the intersection point of two vertical lines as the key position in unlock interface, numeral 4 and ultrasonic wave in unlock interface are set Sensor a, e are corresponded to, and numeral 5 is corresponding with ultrasonic sensor b, e, and numeral 6 is corresponding with ultrasonic sensor c, e, and numeral 7 is with surpassing Sonic sensor a, f are corresponding, and numeral 8 is corresponding with ultrasonic sensor b, f, and numeral 9 is corresponding with ultrasonic sensor c, f, numeral 0 is corresponding with ultrasonic sensor b, g.
Mobile terminal starts when obtaining unlock instruction and sets multiple ultrasonic sensors on the mobile terminal same Shi Chixu transmitting ultrasonic signal.
Step 120, determination detect the ultrasonic sensor of the ultrasonic reflections signal of signal value changes, according to determination The ultrasonic reflections signal that ultrasonic sensor detects determines that the gesture of user corresponds to the key position of unlock interface.
Wherein, the gesture of user includes upper lift of the finger above the key position of unlock interface and the action pushed.Example Such as, the gesture can be with the finger pulp part of finger every the numeral on the key position in empty alignment unlock interface (either The character styles such as letter, additional character), the action lifted and pushed on once is performed above the key position；It can also be By the finger pulp part of finger every the empty key position connected in the unlock interface, and the finger pulp part of finger is in the button The action lifted and pushed on once is performed during the top of position.
The ultrasonic signal of multiple ultrasonic sensors transmitting on mobile terminal is in communication process, the gesture through user Reflection obtains ultrasonic reflections signal, and the ultrasonic reflections signal is received by ultrasonic sensor.Because the gesture includes Upper lift of the finger above the key position of unlock interface and the action pushed, mobile terminal are detected by ultrasonic sensor Be ultrasonic reflections signal that signal value changes with the change of the position of finger.Further, since the hand of input password unblock The effective coverage of gesture is the end (such as finger pulp part of finger) of finger, and region of the finger in addition to end may also reflect institute State ultrasonic signal and produce ultrasonic reflections interference signal；Or the effective ultrasonic reflections letter of the end reflections through finger Number it is also possible to be received by adjacent multiple ultrasonic sensors.Therefore, mobile terminal is detected by ultrasonic sensor The ultrasonic reflections signal of signal value changes includes effective ultrasonic reflections signal and ultrasonic reflections interference signal.
The ultrasonic reflections signal that mobile terminal receives according to each ultrasonic sensor, it is determined that detecting that signal value becomes The ultrasonic sensor of change.The ultrasonic reflections signal that mobile terminal detects according to each ultrasonic sensor of determination it is strong The difference (or difference of propagation time maxima and minima) of maximum and minimum value is spent, it is determined that detecting the ultrasound of signal value changes There is the difference (or difference of propagation time maxima and minima) of maximum maximum of intensity and minimum value extremely in wave sensor Few two ultrasonic sensors.Closed according to each key position in the unlock interface pre-set is corresponding with ultrasonic sensor System, by having the difference of maximum maximum of intensity and minimum value in the above-mentioned ultrasonic sensor for detecting signal value changes At least two ultrasonic sensors of (or difference of propagation time maxima and minima) determine that the gesture of user corresponds to unblock The key position at interface.
Step 130, according to the password factor on the key position of determination determine whether to be unlocked mobile terminal.
Wherein, the password factor includes digital (or the character style such as letter, additional character) and/or trajectory diagram Point in case.Because unlocking pin includes the built-up sequence of password factor and password factor, and user inputs the group of password factor Conjunction order is relevant with the priority of the input time of the gesture of user, further detects that each gesture is corresponding with ultrasonic sensor It is relevant in the time sequencing of the key position of unlock interface.According to detect each gesture correspond to unlock interface key position Time sequencing determine the built-up sequence of password factor, according to described password factor and combinations thereof order and default unlocking pin Matching result determine whether to be unlocked mobile terminal.For example, when the password factor is digital, unlock interface is determined Numeral on upper key position corresponding with each gesture, according to detecting gesture corresponding to the suitable of the key position of unlock interface Numeral is arranged described in ordered pair, to determine built-up sequence digital corresponding to each gesture.By corresponding to each gesture Number combinatorics on words is matched with default unlocking pin in mobile terminal, if the match is successful, mobile terminal performs unblock behaviour Make；If it fails to match, mobile terminal prompting unlocking pin input error.
When the password factor is track pattern, key position corresponding with each gesture, root in unlock interface are determined According to detecting that each gesture corresponds to the time sequencing of key position of unlock interface and be sequentially connected the key position, to pass through The combination of key position determines track pattern corresponding to each gesture.Will be true by the combination of key position corresponding to each gesture Fixed track pattern is matched with default the unlocking pattern in mobile terminal, if the match is successful, mobile terminal performs unblock Operation；If it fails to match, mobile terminal prompting unlocking pin input error.
It is preferred that it can also automatically exit from unlocking when the number of mistake input unlocking pin exceedes default frequency threshold value Interface, control ultrasonic sensor is closed, and ignores unlock instruction within the default time, and then, within the default time not Start ultrasonic sensor further according to unlock instruction.Furthermore it is also possible to start alert program, for example, being sent by mobile terminal Alarm or the position that mobile terminal is sent to default telephone number, to avoid the privacy of user from being stolen by other people of no authority Take.
Further, unlocking pin can also be the combination of above-mentioned numeral and track pattern, digital according to corresponding to gesture Combination and track pattern are unlocked to mobile terminal, to improve the security of information in mobile terminal.
The technical scheme of the present embodiment, by setting multiple ultrasonic sensors on mobile terminals to launch ultrasonic wave letter Number, it is determined that the ultrasonic sensor of the ultrasonic reflections signal of signal value changes is detected, according to the ultrasonic sensor of determination The ultrasonic reflections signal detected determines that the gesture of user corresponds to the key position of unlock interface, and key mapping is pressed according to determination The password factor put determines whether to be unlocked mobile terminal, solves in existing Gesture Recognition Algorithm because amount of calculation is larger The problem of caused recognition speed is slower, and because the presence of interference signal cause recognition accuracy not high the problem of, reach Rapidly, the gesture of user is accurately identified, the effect of maloperation caused by avoiding interference signal, improve user applies body Test.
Embodiment two
Fig. 2 is stream the step of determining key position in a kind of method of mobile terminal unblock in the embodiment of the present invention two Cheng Tu.On the basis of above-described embodiment, preferred pair determines to detect the ultrasound of signal value changes the technical scheme of the present embodiment The ultrasonic sensor of wave reflection signal, the ultrasonic reflections signal detected according to the ultrasonic sensor of determination determine user Gesture correspond to unlock interface key position the step of be described further, specifically comprise the following steps：
Step 210, determination detect the ultrasonic sensor of the ultrasonic reflections signal of signal value changes.
Wherein, the signal value changes include change in signal strength or signal propagation time changes.Mobile terminal is examined one by one The ultrasonic reflections signal that each ultrasonic sensor receives is surveyed, determines that the signal of its ultrasonic reflections signal received is strong Whether degree is identical, if differing, it is the ultrasonic reflections signal for detecting signal value changes to illustrate current ultrasonic wave sensor Ultrasonic sensor.
Alternatively, it can also be that mobile terminal detects the ultrasound that each ultrasonic sensor receives one by one Wave reflection signal, determine whether the propagation time of its ultrasonic reflections signal received is identical, if differing, illustrate current Ultrasonic sensor is the ultrasonic sensor for the ultrasonic reflections signal for detecting signal value changes.
Step 220, the ultrasonic sensor for each ultrasonic reflections signal for detecting signal value changes, hold respectively The following operation of row：Compare the intensity for the ultrasonic reflections signal that current ultrasonic wave sensor receives, it is determined that current gesture distance Change amount signal between proximally and distally two ultrasonic reflections signals of screen.
Example, for the ultrasonic sensor of each ultrasonic reflections signal for detecting signal value changes, hold respectively The following operation of row：Compare the intensity for the ultrasonic reflections signal that current ultrasonic wave sensor receives, by the ultrasound of maximum intensity Ultrasonic reflections signal of the wave reflection signal as current gesture apart from the near-end of screen, the minimum ultrasonic reflections of intensity are believed Ultrasonic reflections signal number as current gesture apart from the distal end of screen, the ultrasonic wave by current gesture apart from the near-end of screen Letter of the signal difference of reflected signal and current gesture between the ultrasonic reflections signal of the distal end of screen as current gesture Number variable quantity, wherein, the signal difference includes intensity difference or time difference.
Wherein, because user is when inputting unlocking pin, the finger pulp part of finger is more closer than the other parts of finger to be moved The screen of dynamic terminal, therefore, the ultrasonic reflections signal intensity of the finger pulp part reflection of finger is maximum, and the propagation time is most short, hand The ultrasonic reflections signal intensity of the other parts reflection of finger is weaker, and the propagation time is longer.It is mobile for the gesture of user Terminal relatively detects the ultrasonic reflections signal that the ultrasonic sensor of the ultrasonic reflections signal of signal intensity receives Intensity, the ultrasonic reflections signal for the maximum intensity that each ultrasonic sensor is received shield as current gesture distance The ultrasonic reflections signal of the near-end of curtain, the minimum ultrasonic reflections of the intensity that each ultrasonic sensor is received are believed Ultrasonic reflections signal number as current gesture apart from the distal end of screen.Such as：The super of signal intensity is detected for each The ultrasonic sensor of sound wave reflected signal, the t1 moment can be connect according to the time difference for receiving ultrasonic reflections signal The ultrasonic reflections signal received is defined as C1, and C1 signal strength values are q1, the ultrasonic reflections letter that t2 receptions arrive Number be defined as C2, and C2 signal strength values are q2, t3 receptions to ultrasonic reflections signal be defined as C3, and C3 letter Number intensity level is q3, wherein t1<t2<T3, q1>q2>Q3, this sentences current ultrasonic sensor and receives three ultrasonic reflections Exemplified by signal, those skilled in the art should appreciate that quantity herein is not actual value, be used as illustrate use it is general Number.Compare q1, q2 and q3 numerical values recited, using the maximum ultrasonic reflections signal C1 of wherein intensity level as current gesture away from The ultrasonic reflections signal of the near-end of off screen curtain, using the minimum ultrasonic reflections signal C3 of wherein intensity level as current gesture away from The ultrasonic reflections signal of the distal end of off screen curtain.
Mobile terminal calculates ultrasonic reflections signal of the current gesture apart from the near-end of screen with current gesture apart from screen Distal end ultrasonic reflections signal between signal difference, using the signal difference as current gesture apart from the near-end of screen and remote Change amount signal between two ultrasonic reflections signals at end.
Step 230, the corresponding relation according to the key position on ultrasonic sensor and unlock interface, pass through signal intensity At least two maximum ultrasonic sensors of amount determine the key position that current gesture corresponds in unlock interface.
Example, the more current gesture of mobile terminal apart from the near-end of screen ultrasonic reflections signal and current gesture away from Intensity difference between the ultrasonic reflections signal of the distal end of off screen curtain, to determine at least two maximum supersonic sensings of intensity difference Device (the number of ultrasonic sensor to be determined ultrasound corresponding with each key position in unlock interface with what is pre-set The number of wave sensor is consistent).Alternatively, it can also be the current gesture of comparison apart from the super of the near-end of screen The propagation time difference of sound wave reflected signal and current gesture between the ultrasonic reflections signal of the distal end of screen, to determine to pass Broadcast at least two ultrasonic sensors of time difference maximum.According to pair of the key position on ultrasonic sensor and unlock interface It should be related to, determine current gesture corresponding to the key position in unlock interface by least two ultrasonic sensor.
The technical scheme of the present embodiment, by determining to detect that the ultrasonic wave of ultrasonic reflections signal of signal value changes passes Sensor, the current gesture that more each ultrasonic sensor receives is apart from the near-end of screen and the ultrasonic reflections of distal end The change amount signal of signal, the gesture of user is determined by least two maximum ultrasonic sensors of the change amount signal Corresponding to the key position of unlock interface, realize and distinguish effective ultrasonic reflections signal and ultrasonic reflections interference signal, When identifying the gesture of user, ignore ultrasonic reflections interference signal, improve the accuracy rate of gesture identification.
Embodiment three
Fig. 3 is a kind of structural representation of the device of mobile terminal unblock in the embodiment of the present invention three.Described device, bag Include：
Ultrasonic signal transmitter unit 310, for by setting multiple ultrasonic sensors on mobile terminals to launch Ultrasonic signal；
Key position determining unit 320, the ultrasonic wave of the ultrasonic reflections signal for determining to detect signal value changes Sensor, the ultrasonic reflections signal detected according to the ultrasonic sensor of determination determine that the gesture of user corresponds to unblock circle The key position in face；
Identifying unit 330 is unlocked, the password factor on the key position according to determination is determined whether to mobile terminal It is unlocked.
The technical scheme of the present embodiment, mobile terminal are mobile whole by being arranged on using ultrasonic signal transmitter unit 310 Multiple ultrasonic sensors transmitting ultrasonic signal on end, determines to detect signal value by key position determining unit 320 The ultrasonic sensor of the ultrasonic reflections signal of change, the ultrasonic reflections detected according to the ultrasonic sensor of determination are believed Number determine user gesture correspond to unlock interface key position, by unlocking identifying unit 330 according to determination by key mapping The password factor put determines whether to be unlocked mobile terminal, solves in existing Gesture Recognition Algorithm because amount of calculation is larger The problem of caused recognition speed is slower, and because the presence of interference signal cause recognition accuracy not high the problem of, reach Rapidly, the gesture of user is accurately identified, the effect of maloperation caused by avoiding interference signal, improve user applies body Test.
Further, one or more ultrasounds are set respectively in the mobile terminal at least two faces in addition to the back side Wave sensor, and each key position in unlock interface is corresponding with least two ultrasonic sensors respectively.
Further, the ultrasonic signal transmitter unit 310 is specifically used for：
When obtaining unlock instruction, start multiple ultrasonic sensors while the lasting transmitting set on mobile terminals Ultrasonic signal.
Further, the key position determining unit 320, including：
Ultrasonic sensor determination subelement, the ultrasound of the ultrasonic reflections signal for determining to detect signal value changes Wave sensor；
Change amount signal determination subelement, for for the super of each ultrasonic reflections signal for detecting signal value changes Sonic sensor, following operation is performed respectively：Compare the intensity for the ultrasonic reflections signal that current ultrasonic wave sensor receives, Using ultrasonic reflections signal of the ultrasonic reflections signal of maximum intensity as current gesture apart from the near-end of screen, by intensity most Ultrasonic reflections signal of the small ultrasonic reflections signal as current gesture apart from the distal end of screen, current gesture distance is shielded Signal difference of the ultrasonic reflections signal and current gesture of the near-end of curtain between the ultrasonic reflections signal of the distal end of screen As the change amount signal of current gesture, wherein, the signal difference includes intensity difference or time difference；
Key position determination subelement, for being closed according to ultrasonic sensor is corresponding with the key position in unlock interface System, determine current gesture corresponding to the button in unlock interface by least two maximum ultrasonic sensors of change amount signal Position.
Further, the password factor includes the point in numeral and/or track pattern；
And the unblock identifying unit 330 is specifically used for：
The numeral on each key position determined is obtained, fixes time sequentially to enter the numeral really according to each key position Row arrangement, to determine each digital built-up sequence, determines whether to be unlocked mobile terminal according to the numeral of combination；
And/or the point being sequentially connected with the key position of being fixed time really according to each key position, according to connection The track pattern that point afterwards is formed determines whether to be unlocked mobile terminal.
The device of above-mentioned mobile terminal unblock can perform the mobile terminal that the embodiment of the present invention one and embodiment two are provided The method of unblock, possess the corresponding functional module of execution method and beneficial effect.
Example IV
Fig. 4 is a kind of flow chart of the method for mobile terminal unblock in the embodiment of the present invention four, and the present embodiment is applicable In being provided with multiple ultrasonic sensors on mobile terminals, and each ultrasonic sensor is initially in and does not launch and do not connect The resting state of ultrasonic wave is received, the order for waking up ultrasonic sensor is set according to default unlocking pin, passes through what is waken up The situation of the gesture control mobile terminal unblock of ultrasonic sensor detection user, the dress that this method can be unlocked by mobile terminal Put to perform, the device is configured in mobile terminal, and the device passes through the supersonic sensing that is arranged on mobile terminal The non-contacting identification gesture of device.The method of the mobile terminal unblock specifically comprises the following steps：
Step 410, when detecting unlock instruction, institute is read in putting in order for the password factor that is included according to unlocking pin A password factor in unlocking pin is stated as the current password factor, wakes up button of the current password factor in unlock interface Ultrasonic sensor group corresponding to position, make each ultrasonic sensor transmitting ultrasound in the ultrasonic sensor group that is waken up Ripple signal.
Wherein, unlock instruction can be that mobile terminal detects main button (such as HOME keys) on the mobile terminal The control instruction generated when being pressed；Unlock instruction can also be when the screen of mobile terminal is lighted, according to being shown on screen Unblock prompting, slip into unlock interface up or down on screen using finger, while the control instruction generated, or make Unlock interface, while the control of the execution unblock operation such as control instruction generated are slipped into the left or to the right on screen with finger System instruction.
Unlocking pin includes the combination and/track pattern of digital (or the character style such as letter, additional character), accordingly , password factor can be the point in digital (or the character style such as letter, additional character) and/track pattern.
The ultrasonic sensor includes at least one receiving terminal and at least one transmitting terminal, and receiving terminal and transmitting terminal It is arranged in pairs at least two faces in addition to the back side in the mobile terminal.For example, with reference to shown in Fig. 1 b, the transmitting terminal is shifting The loudspeaker 101 of dynamic terminal, the receiving terminal are the microphone 102 of mobile terminal.The ultrasonic wave letter that the loudspeaker 101 is launched Number by glass cover-plate outflow mobile terminal, by being reflected during barrier by the barrier, ultrasound is received by microphone 102 Wave reflection signal.One or more supersonic sensings are set respectively at least two faces in addition to the back side in the mobile terminal Device, and each key position in unlock interface is corresponding with least two ultrasonic sensors respectively, wherein, with unlock interface On each key position respectively corresponding at least two ultrasonic sensor form one group of ultrasonic sensor.For example, figure 1c provides a kind of schematic diagram of the position of the ultrasonic sensor on mobile terminal.Set in the front of mobile terminal and side Ultrasonic sensor, can be with it is appreciated that the position of the ultrasonic sensor is not limited to the position shown in Fig. 1 c It is that ultrasonic sensor is set in bottom surface and side, or top surface, bottom surface and side are respectively provided with that ultrasonic sensor etc. is a variety of to be set Mode is put, as long as the set-up mode is able to ensure that can unlock boundary in the presence of at least two ultrasonic sensors to should determine that one Key position on face.Wherein, region or other shapes of figure can be shown round for each key position Shape region, user is corresponded to key position and do gesture, avoid the error detection caused by user gesture deviates key position.In Fig. 1 c In, set ultrasonic sensor a, d to correspond to the numeral 1 in unlock interface, set ultrasonic sensor b, d to correspond in unlock interface Numeral 2, set ultrasonic sensor c, d to correspond to numeral 3 in unlock interface.Passed according to above rheme in positive ultrasonic wave Sensor is that starting point makees downwards vertical line along plane where screen, makees vertical line to the right as starting point using the ultrasonic sensor positioned at side, Rule using the intersection point of two vertical lines as the key position in unlock interface, numeral 4 and ultrasonic wave in unlock interface are set Sensor a, e are corresponding, and numeral 5 is corresponding with ultrasonic sensor b, e, and numeral 6 is corresponding with ultrasonic sensor c, e, digital 7 and Ultrasonic sensor a, f are corresponding, and numeral 8 is corresponding with ultrasonic sensor b, f, and numeral 9 is corresponding with ultrasonic sensor c, f, number Word 0 is corresponding with ultrasonic sensor b, g.
For example, user preset unlocking pin is 1212, it is close to read the unblock when detecting unlock instruction for mobile terminal First 1 in code is used as the current password factor, wakes up corresponding to key position of the current password factor 1 in unlock interface Ultrasonic sensor group (ultrasonic sensor a, d in such as Fig. 1 c), make each super in the ultrasonic sensor group that is waken up Sonic sensor launches ultrasonic signal.
Step 420, according to transmitting ultrasonic signal ultrasonic sensor whether receive signal value in predetermined threshold value model Interior ultrasonic reflections signal is enclosed, determines whether user correctly presses key position of the current password factor in unlock interface.
Wherein, preset threshold range can be according to the finger pulp part of the finger of user on the key position in unlock interface Side, and minimal intensity value when being located away from ultrasonic sensor corresponding to the key position of the finger pulp of finger, and, finger Maximum intensity value when being located proximate to ultrasonic sensor corresponding to the key position of finger pulp determine；Or default threshold Being worth scope can be according to the finger pulp part of the finger of user above the key position in unlock interface, and the position of the finger pulp of finger Put away from the maximum propagation time corresponding to the key position during ultrasonic sensor, and, the finger pulp of finger is located proximate to Minimum propagation time determines during ultrasonic sensor corresponding to the key position.For example, as illustrated in figure 1 c, for unlock interface On numeral 1 key position (in Fig. 1 c numeral 1 where border circular areas), by the finger pulp part of finger on key position The key position for the numeral 1 that the position of side is projected in the screen plane, if described be projected as passing away from ultrasonic wave in Fig. 1 c Sensor a and d position, obtain the intensity for the ultrasonic reflections signal that current ultrasonic wave sensor a and d are received.Repeat to test Repeatedly, select the intensity level of one group of ultrasonic reflections signal minimum from multiple remote ultrasonic wave telegraphy the device a and d position Ultrasonic reflections signal (herein to determine the minimum ultrasonic reflections signal of the intensity that ultrasonic sensor a receives respectively, With the ultrasonic reflections signal for the intensity minimum that ultrasonic sensor d is received), then respectively by the super of intensity level minimum Lower threshold of the intensity level of sound wave reflected signal as ultrasonic sensor a and d preset threshold range.Similarly, by finger The key position of numeral 1 that projects in the screen plane of position of the finger pulp part above key position, if the throwing Shadow is the position of ultrasonic sensor a and d in Fig. 1 c, obtains the intensity of current ultrasonic reflections signal.Repeat to test Repeatedly, select the intensity level of one group of ultrasonic reflections signal maximum from multiple close ultrasonic wave telegraphy the device a and d position Ultrasonic reflections signal (herein to determine the ultrasonic reflections signal of maximum intensity that ultrasonic sensor a receives respectively, With the ultrasonic reflections signal for the maximum intensity that ultrasonic sensor d is received), then respectively by the super of intensity level maximum Upper limit threshold of the intensity level of sound wave reflected signal as ultrasonic sensor a and d preset threshold range.It can also use upper Method is stated, respectively the predetermined threshold value using the time of propagation time most short ultrasonic reflections signal as ultrasonic sensor a and d The lower threshold of scope, respectively using the time of propagation time most long ultrasonic reflections signal as ultrasonic sensor a and d The upper limit threshold of preset threshold range.
Acquisition for mobile terminal currently launches the ultrasonic reflections signal that the ultrasonic sensor group of ultrasonic signal receives, And by received ultrasonic reflections signal compared with preset threshold range.For example, it is assumed that the current password factor is 1, Such as Fig. 1 c, ultrasonic wave a, the d set on mobile terminal is corresponding with the key position of numeral 1 in unlock interface.Acquisition for mobile terminal The ultrasonic reflections signal that sensor a is received, by the ultrasonic reflections signal and ultrasonic sensor a predetermined threshold value model Enclose and be compared.If the ultrasonic reflections signal in ultrasonic sensor a preset threshold range be present, it is determined that ultrasonic wave passes It is anti-with the presence or absence of the ultrasonic wave in ultrasonic sensor d preset threshold range in the ultrasonic reflections signal that sensor d is received Penetrate signal.If the ultrasonic reflections signal in ultrasonic sensor d preset threshold range be present, determine that user correctly presses Key position of the current password factor 1 in unlock interface.
Step 430, according to determine result judgement whether mobile terminal is unlocked.
When the current password factor is not last password factor that the unlocking pin includes, however, it is determined that user is correct Key position of the current password factor in unlock interface is pressed, then judges not to be unlocked mobile terminal, and will be current close The Next Password factor of the code factor returns as the new current password factor and performs the wake-up current password factor in unlock interface On key position corresponding to ultrasonic sensor group operation；And perform step 420 and determine whether correctly user work as by pressing Key position of the preceding password factor in unlock interface；If it is determined that user does not press the current password factor correctly in unlock interface Key position, then control current ultrasonic sensor group continue launch ultrasonic signal.
When the current password factor is last password factor that the unlocking pin includes, however, it is determined that user correctly presses Key position of the current password factor in unlock interface is pressed, then judges to be unlocked mobile terminal, however, it is determined that user is not just Really key position of the pressing current password factor in unlock interface, then judge not to be unlocked mobile terminal.
It is preferred that detecting that correctly the number of key position of the pressing current password factor in unlock interface surpasses user When crossing default frequency threshold value, unlock interface is exited, controls the ultrasonic sensor of current transmitting ultrasonic signal to close, and Ignore unlock instruction in the default time, and then, the gesture of user is no longer detected within the default time, can also be pre- to user If telephone number send the current position of mobile terminal, avoid the privacy of user from being stolen by other people of no authority.
The technical scheme of the present embodiment, pass through the password factor when detecting unlock instruction, included according to unlocking pin The password factor read in the unlocking pin that puts in order be used as the current password factor, the wake-up current password factor exists Ultrasonic sensor group corresponding to key position in unlock interface, make each ultrasound in the ultrasonic sensor group that is waken up Wave sensor launches ultrasonic signal；Whether signal value is received default according to the ultrasonic sensor of transmitting ultrasonic signal Ultrasonic reflections signal in threshold range, determines whether user correctly presses button of the current password factor in unlock interface Position；Whether mobile terminal is unlocked according to determination result judgement.The technical scheme of the present embodiment is realized and passed with ultrasonic wave Sensor dominates the purpose of gesture identification, and in the password factor during previous gesture corresponds to correct unlocking pin, later group surpasses Sonic sensor can be just activated, and optimize the identification method of gesture identification, evaded interference of the malfunction to gesture identification, carried The accuracy rate of high gesture identification and the application experience of user.
Embodiment five
Fig. 5 is to determine whether user inputs correctly in a kind of method of mobile terminal unblock in the embodiment of the present invention five The flow chart of the step of key position.For the technical scheme of the present embodiment on the basis of example IV, preferred pair is super according to transmitting Whether the ultrasonic sensor of acoustic signals receives ultrasonic reflections signal of the signal value in preset threshold range, it is determined that with Family whether correctly pressing the current password factor is described further in the step of key position in unlock interface, specifically include as Lower step：
Step 510, obtain the ultrasonic reflections signal that the ultrasonic sensor of current transmitting ultrasonic signal receives.
Example, if, default unlocking pin is 1212, as illustrated in figure 1 c, launches the ultrasound of ultrasonic signal first Wave sensor is a and d, then, the ultrasonic reflections signal that acquisition for mobile terminal ultrasonic sensor a and d are received.Due to, The area of the finger of user is larger for the key position in unlock interface, and user may choose correct key position While cover in remaining key position, and then, ultrasonic sensor a and d is detecting effective ultrasonic reflections signal While, it is also possible to detect ultrasonic reflections interference signal.
Step 520, the ultrasonic reflections signal, determine the maximum ultrasonic reflections signal of signal intensity.
Using the example in step 510, ultrasonic reflections that acquisition for mobile terminal receives to ultrasonic sensor a and d After signal, compare the ultrasonic reflections signal that ultrasonic sensor a is received, and, compare ultrasonic sensor d receptions The ultrasonic reflections signal arrived, the maximum ultrasound of respective signal intensity is determined respectively for different ultrasonic sensors Wave reflection signal, using the maximum ultrasonic reflections signal of obtain two signal intensities as effective ultrasonic reflections signal, To distinguish effective ultrasonic reflections signal and ultrasonic reflections interference signal, ultrasonic reflections interference signal is avoided to know gesture Other interference.It can also be connect according to the time that ultrasonic wave is propagated in atmosphere according to the method described above from ultrasonic sensor a and d In the ultrasonic reflections signal received, determine two propagation times most short ultrasonic reflections signal as effective respectively Ultrasonic reflections signal.
Step 530, the ultrasonic reflections signal according to currently received signal intensity maximum, it is determined that corresponding to current gesture Key position in unlock interface, control key position flicker selected to show.
Mobile terminal inquires about the difference pre-set according to the maximum ultrasonic reflections signal of currently received signal intensity Threshold range corresponding to key position, to determine the key position corresponding to current gesture in unlock interface, and control the button Position flicker is selected to show, can also be and controls the numeral on the key position to flash.
Alternatively, this step can also be according to the most short ultrasonic wave of currently received signal propagation time Reflected signal, it is determined that the key position corresponding to current gesture in unlock interface, controls key position flicker selected to show In.Can be specifically that mobile terminal is advance according to the most short ultrasonic reflections signal of currently received signal propagation time, inquiry The threshold range of the different key position correspondence of setting, to determine the key position corresponding to current gesture in unlock interface, and Control key position flicker selected to show, can also be and control the numeral on the key position to flash.
Step 540, determine the maximum ultrasonic reflections signal of the signal intensity whether in default intensity threshold scope It is interior, if so, then performing step 550, step 510 is performed if it is not, then returning.
The maximum ultrasonic reflections signal of the more currently received signal intensity of mobile terminal and different key position correspondence Preset strength threshold range.If the signal intensity of the maximum ultrasonic reflections signal of the signal intensity is in default intensity threshold In the range of value, then step 550 is performed, if the signal intensity of the ultrasonic reflections signal of signal intensity maximum is not in default threshold In the range of value, it is determined that user does not press key position of the current password factor in unlock interface correctly, controls current transmitting The ultrasonic sensor of ultrasonic signal continues to launch ultrasonic signal, and returns and perform step 510.
Alternatively, it can also be the most short ultrasound of the more currently received signal propagation time of mobile terminal Wave reflection signal and the default time threshold scope of different key position correspondence.If the propagation time it is most short ultrasonic wave it is anti- The propagation time of signal is penetrated in the range of default time threshold, then performs step 550, if the propagation time most short super The propagation time of sound wave reflected signal is not in the range of default time threshold, it is determined that user correctly press current password because Key position of the son in unlock interface, the ultrasonic sensor of current transmitting ultrasonic signal is controlled to continue to launch ultrasonic wave letter Number, and return and perform step 510.
Step 550, determine that user correctly presses key position of the current password factor in unlock interface, control current hair The ultrasonic sensor for penetrating ultrasonic signal returns to resting state.
The technical scheme of the present embodiment, by determining the maximum ultrasonic reflections signal of the signal intensity whether default Intensity threshold in the range of, determine whether user correctly presses key position of the current password factor in unlock interface, evade Influence of the ultrasonic reflections interference signal to gesture identification, improves recognition accuracy.
Embodiment six
Fig. 6 is a kind of structural representation of the device of mobile terminal unblock in the embodiment of the present invention six.The present apparatus configures In on mobile terminal, being additionally provided with multiple ultrasonic sensors, and each ultrasonic sensor initial place on mobile terminals In the resting state for not launching and not receiving ultrasonic wave.
Described device includes：
Ultrasonic sensor wakeup unit 610, for the password when detecting unlock instruction, included according to unlocking pin The password factor read in the unlocking pin that puts in order of the factor is used as the current password factor, wake-up current password because Ultrasonic sensor group corresponding to key position of the son in unlock interface, make each in the ultrasonic sensor group that is waken up Ultrasonic sensor launches ultrasonic signal；
Pressing keys determining unit 620, for whether receiving letter according to the ultrasonic sensor of transmitting ultrasonic signal Number ultrasonic reflections signal of the value in preset threshold range, determines whether user correctly presses the current password factor on unblock circle Key position on face；
Unlocking unit 630, for whether being unlocked according to determination result judgement to mobile terminal.
The technical scheme of the present embodiment, by ultrasonic sensor wakeup unit 610 when detecting unlock instruction, according to A password factor in the reading unlocking pin that puts in order for the password factor that unlocking pin includes is as current password The factor, the ultrasonic sensor group corresponding to key position of the current password factor in unlock interface is waken up, makes what is be waken up Each ultrasonic sensor transmitting ultrasonic signal in ultrasonic sensor group；By pressing keys determining unit 620 according to hair Whether the ultrasonic sensor for penetrating ultrasonic signal receives ultrasonic reflections signal of the signal value in preset threshold range, really Determine whether user correctly presses key position of the current password factor in unlock interface；By unlocking unit 630 according to determination Whether result judgement is unlocked to mobile terminal.The technical scheme of the present embodiment realizes that dominating gesture with ultrasonic sensor knows Other purpose, in the password factor during previous gesture corresponds to correct unlocking pin, the just meeting of later group ultrasonic sensor It is activated, optimizes the identification method of gesture identification, evaded interference of the malfunction to gesture identification, improves the standard of gesture identification True rate and the application experience of user.
Further, one or more ultrasounds are set respectively in the mobile terminal at least two faces in addition to the back side Wave sensor, and each key position in unlock interface is corresponding with least two ultrasonic sensors respectively, wherein, with solution Lock at least two ultrasonic sensor corresponding to each key position on interface and form one group of ultrasonic sensor.
Further, the pressing keys determining unit 620 is specific, including：
Reflected signal obtains subelement, and the ultrasonic sensor for obtaining current transmitting ultrasonic signal receives super Sound wave reflected signal；
Reflected signal determination subelement, for the ultrasonic reflections signal, determine the maximum ultrasound of signal intensity Wave reflection signal or propagation time most short ultrasonic reflections signal；
Pressing keys determination subelement, for determining the maximum ultrasonic reflections signal of the signal intensity whether default Intensity threshold in the range of, if the signal intensity of the maximum ultrasonic reflections signal of the signal intensity is in default intensity threshold In the range of, it is determined that user correctly presses key position of the current password factor in unlock interface, if the signal intensity is most The signal intensity of big ultrasonic reflections signal is not in preset threshold range, it is determined that user correctly press current password because Key position of the son in unlock interface.
Or, pressing keys determination subelement, for determining propagation time most short ultrasonic reflections signal whether default Time threshold in the range of, if the propagation time of the propagation time most short ultrasonic reflections signal is in default time threshold In the range of, it is determined that user correctly presses key position of the current password factor in unlock interface, if the propagation time is most The propagation time of short ultrasonic reflections signal is not in the range of default time threshold, it is determined that correctly pressing is not current by user Key position of the password factor in unlock interface.
Further, the pressing keys determining unit 620 also includes：
Key flash controls subelement, in the ultrasonic reflections signal, determining maximum super of signal intensity After sound wave reflected signal or propagation time most short ultrasonic reflections signal, according to maximum super of currently received signal intensity Sound wave reflected signal, it is determined that the key position corresponding to current gesture in unlock interface, controls key position flicker to show It is selected；
Or, believed according to most short ultrasonic reflections signal of currently received propagation time and the ultrasonic wave currently launched Number, it is determined that the key position corresponding to current gesture in unlock interface, controls key position flicker selected to show.
Further, the unlocking unit 630 is specifically used for：
When the current password factor is not last password factor that the unlocking pin includes, however, it is determined that user is correct Key position of the current password factor in unlock interface is pressed, then judges not to be unlocked mobile terminal, and will be current close The Next Password factor of the code factor returns as the new current password factor and performs the wake-up current password factor in unlock interface On key position corresponding to ultrasonic sensor group operation；If it is determined that correctly the pressing current password factor is not solving user The key position on interface is locked, then controls current ultrasonic sensor group to continue to launch ultrasonic signal；
When the current password factor is last password factor that the unlocking pin includes, however, it is determined that user correctly presses Key position of the current password factor in unlock interface is pressed, then judges to be unlocked mobile terminal, however, it is determined that user is not just Really key position of the pressing current password factor in unlock interface, then judge not to be unlocked mobile terminal.
The device of above-mentioned mobile terminal unblock can perform the mobile terminal that the embodiment of the present invention four and embodiment five are provided The method of unblock, possess the corresponding functional module of execution method and beneficial effect.
Pay attention to, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes, Readjust and substitute without departing from protection scope of the present invention.Therefore, although being carried out by above example to the present invention It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also Other more equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.

Claims (16)

  1. A kind of 1. method of mobile terminal unblock, it is characterised in that including：
    By setting multiple ultrasonic sensors on mobile terminals to launch ultrasonic signal, wherein, in the mobile terminal One or more ultrasonic sensors, and each button in unlock interface are set respectively at least two faces in addition to the back side Position is corresponding with least two ultrasonic sensors respectively；
    It is determined that detect the ultrasonic sensor of the ultrasonic reflections signal of signal value changes；
    For the ultrasonic sensor of each ultrasonic reflections signal for detecting signal value changes, following operation is performed respectively： Compare the intensity for the ultrasonic reflections signal that current ultrasonic wave sensor receives, the ultrasonic reflections signal of maximum intensity is made Ultrasonic reflections signal for current gesture apart from the near-end of screen, using the minimum ultrasonic reflections signal of intensity as working as remote holder Gesture apart from the ultrasonic reflections signal of the near-end of screen and works as current gesture apart from the ultrasonic reflections signal of the distal end of screen Change amount signal of signal difference of the preceding gesture between the ultrasonic reflections signal of the distal end of screen as current gesture, its In, the signal difference includes intensity difference or time difference；
    It is maximum at least by change amount signal according to the corresponding relation of the key position on ultrasonic sensor and unlock interface Two ultrasonic sensors determine the key position that current gesture corresponds in unlock interface；
    Determine whether to be unlocked mobile terminal according to the password factor on the key position of determination.
  2. 2. according to the method for claim 1, it is characterised in that by setting multiple supersonic sensings on mobile terminals Device launches ultrasonic signal, including：
    When obtaining unlock instruction, start multiple ultrasonic sensors while the lasting transmitting ultrasound set on mobile terminals Ripple signal.
  3. 3. according to the method for claim 1, it is characterised in that the password factor is included in numeral and/or track pattern Point；
    And determine whether to be unlocked mobile terminal according to the password factor on the key position of determination, including：
    The numeral on each key position determined is obtained, is fixed time according to each key position and the numeral is arranged really sequentially Row, to determine each digital built-up sequence, determine whether to be unlocked mobile terminal according to the numeral of combination；
    And/or the point being sequentially connected with the key position of being fixed time really according to each key position, after connection The track pattern that point is formed determines whether to be unlocked mobile terminal.
  4. A kind of 4. method of mobile terminal unblock, it is characterised in that multiple ultrasonic sensors are provided with mobile terminals, and And each ultrasonic sensor is initially in the resting state do not launched and do not receive ultrasonic wave；Methods described includes：
    When detecting unlock instruction, the putting in order for password factor included according to unlocking pin is read in the unlocking pin A password factor as the current password factor, wake up corresponding to key position of the current password factor in unlock interface Ultrasonic sensor group, make each ultrasonic sensor transmitting ultrasonic signal in the ultrasonic sensor group that is waken up；
    Whether ultrasonic wave of the signal value in preset threshold range is received according to the ultrasonic sensor of transmitting ultrasonic signal Reflected signal, determines whether user correctly presses key position of the current password factor in unlock interface；
    Whether mobile terminal is unlocked according to determination result judgement.
  5. 5. according to the method for claim 4, it is characterised in that at least two faces of the mobile terminal in addition to the back side It is upper that one or more ultrasonic sensors are set respectively, and each key position in unlock interface is ultrasonic with least two respectively Wave sensor is corresponding, wherein, at least two ultrasonic sensors structure corresponding with each key position in unlock interface Into one group of ultrasonic sensor.
  6. 6. according to the method for claim 4, it is characterised in that according to transmitting ultrasonic signal ultrasonic sensor whether Ultrasonic reflections signal of the signal value in preset threshold range is received, determines whether user correctly presses the current password factor Key position in unlock interface, including：
    Obtain the ultrasonic reflections signal that the ultrasonic sensor of current transmitting ultrasonic signal receives；
    Compare the ultrasonic reflections signal, determine the maximum ultrasonic reflections signal of signal intensity or propagation time most short super Sound wave reflected signal；
    The maximum ultrasonic reflections signal of the signal intensity is determined whether in the range of default intensity threshold, if the signal The signal intensity of the ultrasonic reflections signal of maximum intensity is in the range of default intensity threshold, it is determined that user correctly work as by pressing Key position of the preceding password factor in unlock interface, if the signal intensity of the ultrasonic reflections signal of signal intensity maximum Not in preset threshold range, it is determined that user does not press key position of the current password factor in unlock interface correctly,
    Or, propagation time most short ultrasonic reflections signal is determined whether in the range of default time threshold, if the propagation The propagation time of time most short ultrasonic reflections signal is in the range of default time threshold, it is determined that user correctly work as by pressing Key position of the preceding password factor in unlock interface, if the propagation time of the propagation time most short ultrasonic reflections signal Not in the range of default time threshold, it is determined that correctly the pressing current password factor does not press key mapping to user in unlock interface Put.
  7. 7. according to the method for claim 6, it is characterised in that in the ultrasonic reflections signal, determine that signal is strong Spend after ultrasonic reflections signal or the ultrasonic reflections signal that the propagation time is most short of maximum, in addition to：
    According to the ultrasonic reflections signal that currently received signal intensity is maximum, it is determined that corresponding to current gesture in unlock interface Key position, control key position flicker selected to show；
    Or, according to most short ultrasonic reflections signal of currently received propagation time and the ultrasonic signal currently launched, really Key position corresponding to settled preceding gesture in unlock interface, control key position flicker selected to show.
  8. 8. according to the method for claim 4, it is characterised in that whether mobile terminal is solved according to determination result judgement Lock, including：
    When the current password factor is not last password factor that the unlocking pin includes, however, it is determined that user correctly presses Key position of the current password factor in unlock interface, then judge not to be unlocked mobile terminal, and by current password because The Next Password factor of son returns as the new current password factor and performs the wake-up current password factor in unlock interface The operation of ultrasonic sensor group corresponding to key position；If it is determined that user does not press the current password factor correctly on unblock circle Key position on face, then current ultrasonic sensor group is controlled to continue to launch ultrasonic signal；
    When the current password factor is last password factor that the unlocking pin includes, however, it is determined that user correctly work as by pressing Key position of the preceding password factor in unlock interface, then judge to be unlocked mobile terminal, however, it is determined that user does not press correctly Key position of the current password factor in unlock interface is pressed, then judges not to be unlocked mobile terminal.
  9. A kind of 9. device of mobile terminal unblock, it is characterised in that including：
    Ultrasonic signal transmitter unit, for by setting multiple ultrasonic sensors on mobile terminals to launch ultrasonic wave letter Number, wherein, one or more ultrasonic sensors are set respectively at least two faces in addition to the back side in the mobile terminal, And each key position in unlock interface is corresponding with least two ultrasonic sensors respectively；
    Key position determining unit, including ultrasonic sensor determination subelement, change amount signal determination subelement and by key mapping Put determination subelement：
    Ultrasonic sensor determination subelement, for determining to detect that the ultrasonic wave of ultrasonic reflections signal of signal value changes passes Sensor；
    Change amount signal determination subelement, for the ultrasonic wave for each ultrasonic reflections signal for detecting signal value changes Sensor, following operation is performed respectively：Compare the intensity for the ultrasonic reflections signal that current ultrasonic wave sensor receives, will be strong Ultrasonic reflections signal of the maximum ultrasonic reflections signal as current gesture apart from the near-end of screen is spent, intensity is minimum Ultrasonic reflections signal of the ultrasonic reflections signal as current gesture apart from the distal end of screen, by current gesture apart from screen Signal difference conduct of the ultrasonic reflections signal and current gesture of near-end between the ultrasonic reflections signal of the distal end of screen The change amount signal of current gesture, wherein, the signal difference includes intensity difference or time difference；
    Key position determination subelement, for the corresponding relation according to the key position in ultrasonic sensor and unlock interface, By at least two maximum ultrasonic sensors of change amount signal determine current gesture correspond in unlock interface by key mapping Put；
    Identifying unit is unlocked, the password factor on the key position according to determination determines whether to solve mobile terminal Lock.
  10. 10. device according to claim 9, it is characterised in that the ultrasonic signal transmitter unit is specifically used for：
    When obtaining unlock instruction, start multiple ultrasonic sensors while the lasting transmitting ultrasound set on mobile terminals Ripple signal.
  11. 11. device according to claim 9, it is characterised in that the password factor is included in numeral and/or track pattern Point；
    And the unblock identifying unit is specifically used for：
    The numeral on each key position determined is obtained, is fixed time according to each key position and the numeral is arranged really sequentially Row, to determine each digital built-up sequence, determine whether to be unlocked mobile terminal according to the numeral of combination；
    And/or the point being sequentially connected with the key position of being fixed time really according to each key position, after connection The track pattern that point is formed determines whether to be unlocked mobile terminal.
  12. 12. a kind of device of mobile terminal unblock, it is characterised in that be configured on mobile terminal, also set up on mobile terminals There are multiple ultrasonic sensors, and each ultrasonic sensor is initially in the dormancy shape do not launched and do not receive ultrasonic wave State；Described device includes：
    Ultrasonic sensor wakeup unit, for the password factor that when detecting unlock instruction, is included according to unlocking pin The password factor read in the unlocking pin that puts in order is solving as the current password factor, the wake-up current password factor The ultrasonic sensor group corresponding to the key position on interface is locked, makes each ultrasonic wave in the ultrasonic sensor group that is waken up Sensor emission ultrasonic signal；
    Pressing keys determining unit, for whether receiving signal value pre- according to the ultrasonic sensor of transmitting ultrasonic signal If the ultrasonic reflections signal in threshold range, determine user whether correctly press the current password factor in unlock interface by Key position；
    Unlocking unit, for whether being unlocked according to determination result judgement to mobile terminal.
  13. 13. device according to claim 12, it is characterised in that the mobile terminal in addition to the back side at least two One or more ultrasonic sensors are set respectively on face, and each key position in unlock interface is respectively with least two surpassing Sonic sensor is corresponding, wherein, at least two ultrasonic sensor corresponding with each key position in unlock interface Form one group of ultrasonic sensor.
  14. 14. device according to claim 12, it is characterised in that the pressing keys determining unit is specific, including：
    Reflected signal obtains subelement, the ultrasonic wave that the ultrasonic sensor for obtaining current transmitting ultrasonic signal receives Reflected signal；
    Reflected signal determination subelement, for the ultrasonic reflections signal, determine that the maximum ultrasonic wave of signal intensity is anti- Penetrate signal or propagation time most short ultrasonic reflections signal；
    Pressing keys determination subelement, for determining the maximum ultrasonic reflections signal of the signal intensity whether default strong Spend in threshold range, if the signal intensity of the ultrasonic reflections signal of signal intensity maximum is in default intensity threshold scope It is interior, it is determined that user correctly presses key position of the current password factor in unlock interface, if signal intensity maximum The signal intensity of ultrasonic reflections signal is not in preset threshold range, it is determined that correctly the pressing current password factor does not exist user Key position in unlock interface,
    Or, propagation time most short ultrasonic reflections signal is determined whether in the range of default time threshold, if the propagation The propagation time of time most short ultrasonic reflections signal is in the range of default time threshold, it is determined that user correctly work as by pressing Key position of the preceding password factor in unlock interface, if the propagation time of the propagation time most short ultrasonic reflections signal Not in the range of default time threshold, it is determined that correctly the pressing current password factor does not press key mapping to user in unlock interface Put.
  15. 15. device according to claim 14, it is characterised in that the pressing keys determining unit also includes：
    Key flash controls subelement, the ultrasonic wave maximum in the ultrasonic reflections signal, determining signal intensity After reflected signal or propagation time most short ultrasonic reflections signal, according to the ultrasonic wave that currently received signal intensity is maximum Reflected signal, it is determined that the key position corresponding to current gesture in unlock interface, controls key position flicker selected to show In；
    Or, according to most short ultrasonic reflections signal of currently received propagation time and the ultrasonic signal currently launched, really Key position corresponding to settled preceding gesture in unlock interface, control key position flicker selected to show.
  16. 16. device according to claim 12, it is characterised in that the unlocking unit is specifically used for：
    When the current password factor is not last password factor that the unlocking pin includes, however, it is determined that user correctly presses Key position of the current password factor in unlock interface, then judge not to be unlocked mobile terminal, and by current password because The Next Password factor of son returns as the new current password factor and performs the wake-up current password factor in unlock interface The operation of ultrasonic sensor group corresponding to key position；If it is determined that user does not press the current password factor correctly on unblock circle Key position on face, then current ultrasonic sensor group is controlled to continue to launch ultrasonic signal；
    When the current password factor is last password factor that the unlocking pin includes, however, it is determined that user correctly work as by pressing Key position of the preceding password factor in unlock interface, then judge to be unlocked mobile terminal, however, it is determined that user does not press correctly Key position of the current password factor in unlock interface is pressed, then judges not to be unlocked mobile terminal.
CN201510671403.3A 2015-10-15 2015-10-15 A kind of method and device of mobile terminal unblock Expired - Fee Related CN105204649B (en)

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CN108090336B (en) * 2017-12-19 2021-06-11 西安易朴通讯技术有限公司 Unlocking method applied to electronic equipment and electronic equipment
CN108255397A (en) * 2018-02-02 2018-07-06 中兴通讯股份有限公司 Control performs method, apparatus, storage medium and electronic device
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CN109240551B (en) * 2018-08-17 2021-06-15 Oppo（重庆）智能科技有限公司 Method for controlling electronic device by using gestures and related product
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