CN106815546A - fingerprint identification method and device - Google Patents
fingerprint identification method and device Download PDFInfo
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- CN106815546A CN106815546A CN201510862402.7A CN201510862402A CN106815546A CN 106815546 A CN106815546 A CN 106815546A CN 201510862402 A CN201510862402 A CN 201510862402A CN 106815546 A CN106815546 A CN 106815546A
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- processing unit
- pressure
- sensor
- fingerprint
- fingerprint identification
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1306—Sensors therefor non-optical, e.g. ultrasonic or capacitive sensing
Abstract
The disclosure belongs to technical field of touch control on a kind of fingerprint identification method and device.Methods described is used in mobile terminal, and methods described includes：Finger is gathered by pressure sensor and acts on the pressure parameter of pressure sensor, and pressure parameter is sent to processing unit, pressure sensor is electrical connected with processing unit；Detect whether pressure parameter meets predetermined condition by processing unit；When pressure parameter meets predetermined condition, fingerprint Identification sensor is started by processing unit, processing unit is electrical connected with fingerprint Identification sensor；The fingerprint of finger is recognized by fingerprint Identification sensor, finger acts on pressure sensor and fingerprint Identification sensor simultaneously.The disclosure solves the problems, such as to be controlled by waking up CPU the fingerprint Identification sensor carry out fingerprint recognition, it is necessary to consume compared with multiple resource, has reached the effect of save resources.
Description
Technical field
This disclosure relates to technical field of touch control, more particularly to a kind of fingerprint identification method and device.
Background technology
The fingerprint Identification sensor set in terminal can be acquired to the fingerprint of user, and terminal is according to collection
To fingerprint authentication is carried out to user, to improve the security of terminal.
Generally fingerprint Identification sensor is arranged in touch key-press, now touch key-press includes：It is arranged on PCB
Physical button on (Printed Circuit Board, printed circuit board (PCB)) plate and it is suspended in above physical button
Fingerprint Identification sensor, the fingerprint Identification sensor is located in the perforate of cover-plate glass, when user touches fingerprint
During identification sensor, the operation of user is identified as fingerprint collecting；When user presses fingerprint Identification sensor,
And when controlling fingerprint Identification sensor to move certain stroke and be pressed into physical button, the operation of user is recognized
It is fingerprint collecting and pressing physical button.
The content of the invention
Present disclose provides a kind of fingerprint identification method and device.
According to the first aspect of the embodiment of the present disclosure, there is provided a kind of fingerprint identification method, for mobile terminal in,
Methods described includes：
Finger is gathered by pressure sensor and acts on the pressure parameter of the pressure sensor, and by the pressure
Force parameter is sent to processing unit, and the pressure sensor is electrical connected with the processing unit；
Detect whether the pressure parameter meets predetermined condition by the processing unit；
When the pressure parameter meets the predetermined condition, fingerprint recognition is started by the processing unit and is passed
Sensor, the processing unit is electrical connected with the fingerprint Identification sensor；
The fingerprint of the finger is recognized by the fingerprint Identification sensor, the finger acts on described simultaneously
Pressure sensor and the fingerprint Identification sensor.
Optionally, it is described that the fingerprint Identification sensor is started by the processing unit, including：
Hardware interrupt is generated by the processing unit；
The hardware interrupt is sent to by the fingerprint Identification sensor by the processing unit, it is described
Hardware interrupt carries out fingerprint recognition for indicating the fingerprint Identification sensor.
Optionally, methods described, also includes：
Detect whether the finger acts on fingerprint collecting region, the fingerprint collecting by the processing unit
Region is the fingerprint Identification sensor accurate acquisition to the region of fingerprint；
When the finger acts on the fingerprint collecting region, triggered by the processing unit described in performing
The step of fingerprint Identification sensor is started by the processing unit.
It is optionally, described to detect whether the finger acts on fingerprint collecting region by the processing unit,
Including：
When the mobile terminal includes capacitance type touch key, and the capacitance type touch key and the pressure
When the distance between sensor is less than first threshold, sensed in the finger by the capacitance type touch key
The capacitance during pressure sensor is acted on, the capacitance is sent to the processing unit, it is described
Capacitance type touch key is electrical connected with the processing unit；
Detect whether the capacitance is less than predetermined capacitance threshold value by the processing unit；
When the capacitance is less than the predetermined capacitance threshold value, the finger is determined by the processing unit
Act on the fingerprint collecting region.
It is optionally, described to detect whether the finger acts on fingerprint collecting region by the processing unit,
Including：
When the mobile terminal includes pressure type touch key-press, and the pressure type touch key-press and the pressure
When the distance between sensor is less than Second Threshold, sensed in the finger by the pressure type touch key-press
The induction pressure parameter during pressure sensor is acted on, the induction pressure parameter is sent to the place
Reason unit, the pressure type touch key-press is electrical connected with the processing unit；
Detect whether the induction pressure parameter is less than predetermined pressure threshold by the processing unit；
When the induction pressure parameter is less than the predetermined pressure threshold, institute is determined by the processing unit
State finger and act on the fingerprint collecting region.
According to the second aspect of the embodiment of the present disclosure, there is provided a kind of fingerprint identification device, for mobile terminal in,
Described device includes：
Parameter collection module, is configured to pressure sensor collection finger and acts on the pressure sensor
Pressure parameter, and the pressure parameter is sent to processing unit, the pressure sensor and the treatment
Unit is electrical connected；
First detection module, is configured to the processing unit and detects what the parameter collection module was obtained
Whether the pressure parameter meets predetermined condition；
Sensor starting module, is configured as the first detection module and detects that the pressure parameter meets
During the predetermined condition, fingerprint Identification sensor, the processing unit and institute are started by the processing unit
Fingerprint Identification sensor is stated to be electrical connected；
Fingerprint identification module, is configured to the fingerprint that the fingerprint Identification sensor recognizes the finger,
The finger acts on the pressure sensor and the fingerprint Identification sensor simultaneously.
Optionally, the sensor starting module, including：
Signal generation submodule, is configured to the processing unit generation hardware interrupt；
Sensor starts submodule, is configured to the processing unit and gives birth to the signal generation submodule
Into the hardware interrupt be sent to the fingerprint Identification sensor, the hardware interrupt is used to refer to
Show that the fingerprint Identification sensor carries out fingerprint recognition.
Optionally, described device, also includes：
Second detection module, is configured to the processing unit and detects whether the finger acts on fingerprint
Pickup area, the fingerprint collecting region is the fingerprint Identification sensor accurate acquisition to the region of fingerprint；
Operation trigger module, being configured as second detection module, to detect that the finger is acted on described
During fingerprint collecting region, trigger described by processing unit startup described in performing by the processing unit
The operation of fingerprint Identification sensor.
Optionally, second detection module, including：
First collection submodule, being configured as the mobile terminal includes capacitance type touch key, and described
When the distance between capacitance type touch key and described pressure sensor are less than first threshold, by the electric capacity
Formula touch key-press senses the capacitance when the finger acts on the pressure sensor, by the capacitance
The processing unit is sent to, the capacitance type touch key is electrical connected with the processing unit；
First detection sub-module, is configured to the processing unit detection the first collection submodule and obtains
Whether the capacitance for arriving is less than predetermined capacitance threshold value；
First determination sub-module, is configured as first detection sub-module and detects that the capacitance is less than
During the predetermined capacitance threshold value, determine that the finger acts on the fingerprint collecting area by the processing unit
Domain.
Optionally, second detection module, including：
Second collection submodule, being configured as the mobile terminal includes pressure type touch key-press, and described
When the distance between pressure type touch key-press and described pressure sensor are less than Second Threshold, by the pressure
Formula touch key-press senses the induction pressure parameter when the finger acts on the pressure sensor, will be described
Induction pressure parameter is sent to the processing unit, and the pressure type touch key-press is electrical with the processing unit
It is connected；
Second detection sub-module, is configured to the processing unit detection the second collection submodule and obtains
Whether the pressure parameter for arriving is less than predetermined pressure threshold；
Second determination sub-module, is configured as second detection sub-module and detects that the pressure parameter is small
When the predetermined pressure threshold, determine that the finger acts on the fingerprint collecting by the processing unit
Region.
The technical scheme provided by this disclosed embodiment can include the following benefits：
Finger is gathered by pressure sensor and acts on the pressure parameter of pressure sensor, and by the pressure parameter
It is sent to processing unit；When detecting that pressure parameter meets predetermined condition by processing unit, by treatment
Unit starting fingerprint Identification sensor；The fingerprint of finger is recognized by fingerprint Identification sensor, can be by place
Manage unit to start fingerprint Identification sensor, control fingerprint Identification sensor carries out fingerprint recognition, solves logical
Wake-up CPU (Central Processing Unit, CPU) is crossed to control fingerprint Identification sensor to enter
Row fingerprint recognition has reached the effect of save resources, it is necessary to consume the problem compared with multiple resource.
It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary, can not
The limitation disclosure.
Brief description of the drawings
Accompanying drawing herein is merged in specification and constitutes a part for present disclosure specification, shows and meets this
Disclosed embodiment, and it is used to explain the principle of the disclosure together with specification.
Fig. 1 is a kind of flow chart of the fingerprint identification method according to an exemplary embodiment.
Fig. 2A is a kind of flow chart of the fingerprint identification method according to another exemplary embodiment.
Fig. 2 B are the schematic diagrames of the predetermined key according to exemplary embodiment.
Fig. 2 C are the flow charts of the first detection method according to exemplary embodiment.
Fig. 2 D are the flow charts of second detection method according to exemplary embodiment.
Fig. 2 E are the interface schematic diagrams of the mobile terminal according to exemplary embodiment.
Fig. 3 is a kind of block diagram of the fingerprint identification device according to an exemplary embodiment.
Fig. 4 is a kind of block diagram of the fingerprint identification device according to an exemplary embodiment.
Fig. 5 is a kind of block diagram of the device for fingerprint recognition according to an exemplary embodiment.
Specific embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following retouches
State when being related to accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.
Implementation method described in following exemplary embodiment does not represent all embodiment party consistent with the disclosure
Formula.Conversely, they be only with described in detail in such as appended claims, disclosure some in terms of phase one
The example of the apparatus and method of cause.
Fig. 1 is a kind of flow chart of the fingerprint identification method according to an exemplary embodiment, and the fingerprint is known
Other method is applied in mobile terminal, as shown in figure 1, the fingerprint identification method is comprised the following steps.
In a step 101, the pressure parameter that finger acts on pressure sensor is gathered by pressure sensor,
And the pressure parameter is sent to processing unit, pressure sensor is electrical connected with processing unit.
In a step 102, detect whether pressure parameter meets predetermined condition by processing unit.
In step 103, when pressure parameter meets predetermined condition, fingerprint recognition is started by processing unit
Sensor, processing unit is electrical connected with fingerprint Identification sensor.
At step 104, the fingerprint of finger is recognized by fingerprint Identification sensor, finger acts on pressure simultaneously
Force snesor and fingerprint Identification sensor.
In sum, the fingerprint identification method that the disclosure is provided, gathers finger and acts on by pressure sensor
The pressure parameter of pressure sensor, and the pressure parameter is sent to processing unit；Examined when by processing unit
When measuring pressure parameter and meeting predetermined condition, fingerprint Identification sensor is started by processing unit；By fingerprint
Identification sensor recognizes the fingerprint of finger, and fingerprint Identification sensor can be started by processing unit, controls
Fingerprint Identification sensor carries out fingerprint recognition, solves by waking up CPU to control fingerprint Identification sensor to enter
Row fingerprint recognition has reached the effect of save resources, it is necessary to consume the problem compared with multiple resource.
Fig. 2A is a kind of flow chart of the fingerprint identification method according to another exemplary embodiment, the fingerprint
Recognition methods is applied in mobile terminal, and as shown in Figure 2 A, the fingerprint identification method comprises the following steps.
In step 201, the pressure parameter that finger acts on pressure sensor is gathered by pressure sensor,
And the pressure parameter is sent to processing unit, pressure sensor is electrical connected with processing unit.
In the present embodiment, mobile terminal includes touch screen areas and key zone, and touch screen areas and key zone all lead to
Processing unit control is crossed, processing unit can be touch chip, or general processor, the present embodiment
It is not construed as limiting.In the first implementation, touch screen areas one processing unit of correspondence, key zone correspondence is another
One processing unit, now, by the corresponding processing unit of the corresponding processing unit in touch screen areas or key zone
Perform this step；In second implementation, touch screen areas and key zone one processing unit of common correspondence,
Now, this step is performed by the processing unit.
In the present embodiment, pressure sensor and fingerprint Identification sensor be implemented as one of key zone it is predetermined by
Key, refer to the schematic diagram of the predetermined key shown in Fig. 2 B, wherein, pressure sensor is passed positioned at fingerprint recognition
Around sensor.The left side view of Fig. 2 B is refer to, wherein, pressure sensor is with fingerprint Identification sensor simultaneously
It is arranged in the lower section of transparent cover plate；The right side view of Fig. 2 B is refer to, wherein, pressure sensor is located at and refers to
The lower section of line identification sensor, the present embodiment is only illustrated with above two implementation, is not limited
The arrangement mode of level pressure force snesor and fingerprint Identification sensor.
When finger acts on pressure sensor, the state of pressure sensor is changed, and now, pressure is passed
Sensor can collect the pressure parameter that finger acts on pressure sensor, and the pressure parameter is sent into place
Reason unit.Wherein, pressure parameter can be effect dynamics, pressure duration, the instantaneous pressure change of operation
Change etc., the present embodiment is not construed as limiting.
In step 202., detect whether pressure parameter meets predetermined condition by processing unit.
When pressure parameter is effect dynamics, predetermined condition finger pressure force parameter is met more than effect dynamics threshold value；
When pressure parameter is pressure duration, it is that finger pressure duration exceedes pressure duration to meet predetermined condition
Threshold value；When pressure parameter is that instantaneous pressure changes, it refers to that instantaneous pressure change exceedes wink to meet predetermined condition
When pressure change threshold value.
In step 203, detect whether finger acts on fingerprint collecting region by processing unit, fingerprint is adopted
Collection region is fingerprint Identification sensor accurate acquisition to the region of fingerprint.
Because fingerprint Identification sensor can carry out fingerprint recognition to the finger being applied to it, when the work of finger
When being deviateed with position, fingerprint Identification sensor cannot collect complete fingerprint, or even cannot collect
Fingerprint, causes fingerprint recognition to fail.Therefore, it will usually which fingerprint collecting region is set to fingerprint Identification sensor,
When finger acts on fingerprint recognition region, fingerprint Identification sensor can accurate acquisition to fingerprint.
In the present embodiment, processing unit can first detect whether finger acts on fingerprint collecting region, when it is determined that
When finger acts on fingerprint collecting region, control fingerprint Identification sensor carries out fingerprint recognition, solves finger
Do not act on fingerprint collecting region, cause fingerprint recognition failure problem, reached improve fingerprint recognition into
The effect of power.
Wherein, step 203 is optional step, i.e. can only carry out step 202, it is also possible to both perform step
202, step 203 is also performed, now, the present embodiment does not limit the priority between step 202 and step 203
Execution sequence.
Processing unit can detect whether finger acts on finger by other buttons around predetermined key
Line pickup area.When other buttons are capacitance type touch keys, the detection mode shown in Fig. 2 C is refer to；
When other buttons are pressure type touch key-press, the detection mode shown in Fig. 2 D is refer to.Wherein, pressure type
Touch key-press refers to the button only realized by pressure sensor.Refer to the boundary of the mobile terminal shown in Fig. 2 E
Face schematic diagram, assumes that homepage key 11 is predetermined key in Fig. 2 E, Menu key 12 and return key 12 are electric capacity
Formula touch key-press, or, Menu key 12 and return key 12 are pressure type touch key-press, or, the He of Menu key 12
One in return key 12 is capacitance type touch key, and another is pressure type touch key-press.
Fig. 2 C are refer to, in the first possible implementation, detects whether finger is made by processing unit
For fingerprint collecting region, including：
In step 2031, when mobile terminal includes capacitance type touch key, and capacitance type touch key and pressure
When the distance between force snesor is less than first threshold, is sensed by capacitance type touch key and acted in finger
Capacitance during pressure sensor, processing unit, capacitance type touch key and the place are sent to by capacitance
Reason unit is electrical connected；
In step 2032, detect whether capacitance is less than predetermined capacitance threshold value by processing unit；
In step 2033, when capacitance is less than predetermined capacitance threshold value, determine that finger is made by processing unit
For fingerprint collecting region.
When finger acts on fingerprint collecting region, capacitance type touch key, now, electric capacity will not be touched
The capacitance that formula touch key-press is sensed is zero or capacitance is smaller；When finger does not act on fingerprint collecting region
When, capacitance type touch key can be touched, now, the capacitance that capacitance type touch key is sensed is larger,
Therefore, processing unit can be by detecting whether capacitance less than predetermined capacitance threshold value detects whether finger is made
For fingerprint collecting region.Wherein, predetermined capacitance threshold value can voluntarily set and change, and the present embodiment is not made
Limit.
Fig. 2 D are refer to, in second possible implementation, detects whether finger is made by processing unit
For fingerprint collecting region, including：
In step 2034, when mobile terminal includes pressure type touch key-press, and pressure type touch key-press and pressure
When the distance between force snesor is less than Second Threshold, is sensed by pressure type touch key-press and acted in finger
Induction pressure parameter during pressure sensor, processing unit is sent to by induction pressure parameter, and pressure type is touched
Button is electrical connected with processing unit；
In step 2035, detect whether induction pressure parameter is less than predetermined pressure threshold by processing unit；
In step 2036, when induction pressure parameter is less than predetermined pressure threshold, determined by processing unit
Finger acts on fingerprint collecting region.
When finger acts on fingerprint collecting region, pressure type touch key-press, now, pressure will not be touched
The induction pressure parameter that formula touch key-press is sensed is zero or induction pressure parameter is smaller；When finger is not acted on
During fingerprint collecting region, pressure type touch key-press can be touched, now, pressure type touch key-press is sensed
Induction pressure parameter is larger, therefore, whether processing unit can be by detecting induction pressure parameter less than predetermined
Pressure threshold detects whether finger acts on fingerprint collecting region.Wherein, predetermined pressure threshold can be voluntarily
Set and change, the present embodiment is not construed as limiting.
That is, when in the border circular areas around finger acts on homepage key 11, the Menu key 12 on both sides and return
The capacitance or induction pressure parameter that the square region returned around key 12 is sensed are smaller, can now determine hand
Finger acts on fingerprint collecting region.
In step 204, when pressure parameter meets predetermined condition and finger acts on fingerprint collecting region,
Hardware interrupt is generated by processing unit.
When the present embodiment performs step 202 and do not perform step 203, this step is：When pressure parameter is full
During sufficient predetermined condition, hardware interrupt is generated by processing unit.
In the present embodiment, fingerprint identification module is started by processing unit generation hardware interrupt and is referred to
Line recognizes that starting fingerprint Identification sensor without waking up CPU carries out fingerprint recognition, can save and call out
Awake CPU and the resource of consumption required for operation CPU, have reached the effect of save resources.
In step 205, hardware interrupt is sent to by fingerprint Identification sensor by processing unit, firmly
Part interrupt signal carries out fingerprint recognition, processing unit and fingerprint recognition sensing for indicating fingerprint Identification sensor
Device is electrical connected.
Fingerprint Identification sensor switches to working condition after hardware interrupt is received from resting state.
In step 206, the fingerprint of finger is recognized by fingerprint Identification sensor, finger acts on pressure simultaneously
Force snesor and fingerprint Identification sensor.
In running order fingerprint Identification sensor can be acquired and recognize to the fingerprint of finger.
In sum, the fingerprint identification method that the disclosure is provided, gathers finger and acts on by pressure sensor
The pressure parameter of pressure sensor, and the pressure parameter is sent to processing unit；Examined when by processing unit
When measuring pressure parameter and meeting predetermined condition, fingerprint Identification sensor is started by processing unit；By fingerprint
Identification sensor recognizes the fingerprint of finger, and fingerprint Identification sensor can be started by processing unit, controls
Fingerprint Identification sensor carries out fingerprint recognition, solves by waking up CPU to control fingerprint Identification sensor to enter
Row fingerprint recognition has reached the effect of save resources, it is necessary to consume the problem compared with multiple resource.
In addition, detecting whether finger acts on fingerprint collecting region by processing unit, finger work is being detected
During for fingerprint collecting region, it is determined that control fingerprint Identification sensor carries out fingerprint recognition, finger is solved not
Fingerprint collecting region is acted on, causes the problem of fingerprint recognition failure, reached the success for improving fingerprint recognition
The effect of rate.
Fig. 3 is a kind of block diagram of the fingerprint identification device according to an exemplary embodiment, the fingerprint recognition
Device is applied in mobile terminal, as shown in figure 3, the fingerprint identification device includes：Parameter collection module 310,
First detection module 320, sensor starting module 330 and fingerprint identification module 340；
The parameter collection module 310, is configured to pressure sensor collection finger and acts on pressure sensor
Pressure parameter, and pressure parameter is sent to processing unit, pressure sensor is electrical connected with processing unit；
The first detection module 320, is configured to what processing unit detection parameter collection module 310 was obtained
Whether pressure parameter meets predetermined condition；
The sensor starting module 330, is configured as first detection module 320 and detects that pressure parameter meets
During predetermined condition, fingerprint Identification sensor, processing unit and fingerprint Identification sensor are started by processing unit
It is electrical connected；
The fingerprint identification module 340, is configured to the fingerprint that fingerprint Identification sensor recognizes finger, finger
Act on pressure sensor and fingerprint Identification sensor simultaneously.
In sum, the fingerprint identification device that the disclosure is provided, gathers finger and acts on by pressure sensor
The pressure parameter of pressure sensor, and the pressure parameter is sent to processing unit；Examined when by processing unit
When measuring pressure parameter and meeting predetermined condition, fingerprint Identification sensor is started by processing unit；By fingerprint
Identification sensor recognizes the fingerprint of finger, and fingerprint Identification sensor can be started by processing unit, controls
Fingerprint Identification sensor carries out fingerprint recognition, solves by waking up CPU to control fingerprint Identification sensor to enter
Row fingerprint recognition has reached the effect of save resources, it is necessary to consume the problem compared with multiple resource.
Fig. 4 is a kind of block diagram of the fingerprint identification device according to an exemplary embodiment, the fingerprint recognition
Device is applied in mobile terminal, as shown in figure 4, the fingerprint identification device includes：Parameter collection module 410,
First detection module 420, sensor starting module 430 and fingerprint identification module 440；
The parameter collection module 410, is configured to pressure sensor collection finger and acts on pressure sensor
Pressure parameter, and pressure parameter is sent to processing unit, pressure sensor is electrical connected with processing unit；
The first detection module 420, is configured to what processing unit detection numerical value acquisition module 410 was obtained
Whether pressure parameter meets predetermined condition；
The sensor starting module 430, is configured as first detection module 420 and detects that pressure parameter meets
During predetermined condition, fingerprint Identification sensor, processing unit and fingerprint Identification sensor are started by processing unit
It is electrical connected；
The fingerprint identification module 440, is configured to the fingerprint that fingerprint Identification sensor recognizes finger, finger
Act on pressure sensor and fingerprint Identification sensor simultaneously.
Optionally, sensor starting module 430, including：Signal generation submodule 431 and sensor promoter
Module 432；
The signal generation submodule 431, is configured to processing unit generation hardware interrupt；
The sensor starts submodule 432, is configured to processing unit and gives birth to signal generation submodule 431
Into hardware interrupt be sent to fingerprint Identification sensor, hardware interrupt is used to indicate fingerprint recognition to pass
Sensor carries out fingerprint recognition.
Optionally, the device that the present embodiment is provided, also includes：Second detection module 450 and operation trigger mode
Block 460；
Second detection module 450, is configured to whether processing unit detection finger acts on fingerprint collecting
Region, fingerprint collecting region is fingerprint Identification sensor accurate acquisition to the region of fingerprint；
The operation trigger module 460, is configured as the second detection module 450 and detects that finger acts on fingerprint
During pickup area, triggered by processing unit and perform the operation for starting fingerprint Identification sensor by processing unit.
Optionally, the second detection module 450, including：First collection submodule 451, the first detection sub-module
452 and first determination sub-module 453；
The first collection submodule 451, being configured as mobile terminal includes capacitance type touch key, and electric capacity
When the distance between formula touch key-press and pressure sensor are less than first threshold, by capacitance type touch key sense
Capacitance that should be when finger acts on pressure sensor, processing unit, capacitive touch are sent to by capacitance
Button is touched to be electrical connected with processing unit；
First detection sub-module 452, is configured to processing unit detection the first collection submodule 451 and obtains
Whether the capacitance for arriving is less than predetermined capacitance threshold value；
First determination sub-module 453, is configured as the first detection sub-module 452 and detects that capacitance is less than
During predetermined capacitance threshold value, determine that finger acts on fingerprint collecting region by processing unit.
Optionally, the second detection module 450, including：Second collection submodule 454, the second detection sub-module
455 and second determination sub-module 456；
The second collection submodule 454, being configured as mobile terminal includes pressure type touch key-press, and pressure
When the distance between formula touch key-press and pressure sensor are less than Second Threshold, by pressure type touch key-press sense
Induction pressure parameter that should be when finger acts on pressure sensor, is sent to treatment single by induction pressure parameter
Unit, pressure type touch key-press is electrical connected with processing unit；
Second detection sub-module 455, is configured to processing unit detection the second collection submodule 454 and obtains
Whether the induction pressure parameter for arriving is less than predetermined pressure threshold；
Second determination sub-module 456, is configured as the second detection sub-module 455 and detects that induction pressure is joined
When number is less than predetermined pressure threshold, determine that finger acts on fingerprint collecting region by processing unit.
In sum, the fingerprint identification device that the disclosure is provided, gathers finger and acts on by pressure sensor
The pressure parameter of pressure sensor, and the pressure parameter is sent to processing unit；Examined when by processing unit
When measuring pressure parameter and meeting predetermined condition, fingerprint Identification sensor is started by processing unit；By fingerprint
Identification sensor recognizes the fingerprint of finger, and fingerprint Identification sensor can be started by processing unit, controls
Fingerprint Identification sensor carries out fingerprint recognition, solves by waking up CPU to control fingerprint Identification sensor to enter
Row fingerprint recognition has reached the effect of save resources, it is necessary to consume the problem compared with multiple resource.
In addition, detecting whether finger acts on fingerprint collecting region by processing unit, finger work is being detected
During for fingerprint collecting region, it is determined that control fingerprint Identification sensor carries out fingerprint recognition, finger is solved not
Fingerprint collecting region is acted on, causes the problem of fingerprint recognition failure, reached the success for improving fingerprint recognition
The effect of rate.
On the device in above-described embodiment, wherein modules perform the concrete mode of operation relevant
It has been described in detail in the embodiment of the method, explanation will be not set forth in detail herein.
Fig. 5 is a kind of block diagram of the device 500 for fingerprint recognition according to an exemplary embodiment.
For example, device 500 can be mobile phone, computer, digital broadcast terminal, messaging devices, trip
Play console, tablet device, Medical Devices, body-building equipment, personal digital assistant etc..
Reference picture 5, device 500 can include following one or more assemblies：Processing assembly 502, memory
504, power supply module 506, multimedia groupware 508, audio-frequency assembly 510, the interface of input/output (I/O)
512, sensor cluster 514, and communication component 516.
The integrated operation of the usual control device 500 of processing assembly 502, such as with display, call, number
According to communication, the operation that camera operation and record operation are associated.Processing assembly 502 can include one or many
Individual processor 518 carrys out execute instruction, to complete all or part of step of above-mentioned method.Additionally, treatment
Component 502 can include one or more modules, be easy to the interaction between processing assembly 502 and other assemblies.
For example, processing assembly 502 can include multi-media module, to facilitate multimedia groupware 508 and processing assembly
Interaction between 502.
Memory 504 is configured as storing various types of data supporting the operation in device 500.These
The example of data includes the instruction for any application program or method for operating on device 500, contact person
Data, telephone book data, message, picture, video etc..Memory 504 can be by any kind of volatile
Property or non-volatile memory device or combinations thereof realize, such as static RAM (SRAM),
Electrically Erasable Read Only Memory (EEPROM), Erasable Programmable Read Only Memory EPROM (EPROM),
Programmable read only memory (PROM), read-only storage (ROM), magnetic memory, flash memory,
Disk or CD.
Power supply module 506 provides electric power for the various assemblies of device 500.Power supply module 506 can include electricity
Management system, one or more power supplys, and other with generate, manage and distribute electric power phase for device 500
The component of association.
Multimedia groupware 508 is included in one screen of output interface of offer between described device 500 and user
Curtain.In certain embodiments, screen can include liquid crystal display (LCD) and touch panel (TP).Such as
Fruit screen includes touch panel, and screen may be implemented as touch-screen, to receive the input signal from user.
Touch panel includes one or more touch sensors with the gesture on sensing touch, slip and touch panel.
The touch sensor can not only sensing touch or sliding action border, but also detection and the touch
Or slide related duration and pressure.In certain embodiments, multimedia groupware 508 includes one
Individual front camera and/or rear camera.When device 500 is in operator scheme, such as screening-mode or video
During pattern, front camera and/or rear camera can receive outside multi-medium data.Each is preposition to take the photograph
As head and rear camera can be a fixed optical lens systems or with focal length and optical zoom energy
Power.
Audio-frequency assembly 510 is configured as output and/or input audio signal.For example, audio-frequency assembly 510 includes
One microphone (MIC), when device 500 is in operator scheme, such as call model, logging mode and voice
During recognition mode, microphone is configured as receiving external audio signal.The audio signal for being received can be entered
The storage of one step sends in memory 504 or via communication component 516.In certain embodiments, audio-frequency assembly
510 also include a loudspeaker, for exports audio signal.
I/O interfaces 512 are that interface, above-mentioned peripheral interface are provided between processing assembly 502 and peripheral interface module
Module can be keyboard, click wheel, button etc..These buttons may include but be not limited to：Home button, sound
Amount button, start button and locking press button.
Sensor cluster 514 includes one or more sensors, for providing various aspects for device 500
State estimation.For example, sensor cluster 514 can detect the opening/closed mode of device 500, component
Relative positioning, such as described component for device 500 display and keypad, sensor cluster 514 also
Can be with the change of the position of 500 1 components of detection means 500 or device, user and depositing that device 500 is contacted
Or do not exist, the temperature change of the orientation of device 500 or acceleration/deceleration and device 500.Sensor cluster 514
Proximity transducer can be included, be configured to detect when without any physical contact near object deposit
.Sensor cluster 514 can also include optical sensor, such as CMOS or ccd image sensor, be used for
Used in imaging applications.In certain embodiments, the sensor cluster 514 can also be passed including acceleration
Sensor, gyro sensor, Magnetic Sensor, pressure sensor or temperature sensor.
Communication component 516 is configured to facilitate the logical of wired or wireless way between device 500 and other equipment
Letter.Device 500 can access the wireless network based on communication standard, such as WiFi, 2G or 3G, or they
Combination.In one exemplary embodiment, communication component 516 is received from outside wide via broadcast channel
The broadcast singal or broadcast related information of broadcast management system.In one exemplary embodiment, the communication set
Part 516 also includes near-field communication (NFC) module, to promote junction service.For example, can in NFC module
Based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra wide band (UWB) skill
Art, bluetooth (BT) technology and other technologies are realized.
In the exemplary embodiment, device 500 can by one or more application specific integrated circuits (ASIC),
Digital signal processor (DSP), digital signal processing appts (DSPD), PLD (PLD),
Field programmable gate array (FPGA), controller, microcontroller, microprocessor or other electronic component realities
It is existing, for performing the above method.
In the exemplary embodiment, a kind of non-transitory computer-readable storage medium including instructing is additionally provided
Matter, such as, including the memory 504 for instructing, above-mentioned instruction can be performed with complete by the processor 518 of device 500
Into the above method.For example, the non-transitorycomputer readable storage medium can be ROM, arbitrary access
Memory (RAM), CD-ROM, tape, floppy disk and optical data storage devices etc..
Those skilled in the art will readily occur to the disclosure after considering specification and putting into practice disclosure herein
Other embodiments.The application is intended to any modification, purposes or the adaptations of the disclosure, this
A little modification, purposes or adaptations follow the general principle of the disclosure and undocumented including the disclosure
Common knowledge or conventional techniques in the art.Description and embodiments be considered only as it is exemplary,
The true scope and spirit of the disclosure are pointed out by following claim.
It should be appreciated that the disclosure is not limited to the accurate knot for being described above and being shown in the drawings
Structure, and can without departing from the scope carry out various modifications and changes.The scope of the present disclosure is only by appended
Claim is limited.
Claims (10)
1. a kind of fingerprint identification method, in mobile terminal, it is characterised in that methods described includes：
Finger is gathered by pressure sensor and acts on the pressure parameter of the pressure sensor, and by the pressure
Force parameter is sent to processing unit, and the pressure sensor is electrical connected with the processing unit；
Detect whether the pressure parameter meets predetermined condition by the processing unit；
When the pressure parameter meets the predetermined condition, fingerprint recognition is started by the processing unit and is passed
Sensor, the processing unit is electrical connected with the fingerprint Identification sensor；
The fingerprint of the finger is recognized by the fingerprint Identification sensor, the finger acts on described simultaneously
Pressure sensor and the fingerprint Identification sensor.
2. method according to claim 1, it is characterised in that described to be started by the processing unit
Fingerprint Identification sensor, including：
Hardware interrupt is generated by the processing unit；
The hardware interrupt is sent to by the fingerprint Identification sensor by the processing unit, it is described
Hardware interrupt carries out fingerprint recognition for indicating the fingerprint Identification sensor.
3. method according to claim 1 and 2, it is characterised in that methods described, also includes：
Detect whether the finger acts on fingerprint collecting region, the fingerprint collecting by the processing unit
Region is the fingerprint Identification sensor accurate acquisition to the region of fingerprint；
When the finger acts on the fingerprint collecting region, triggered by the processing unit described in performing
The step of fingerprint Identification sensor is started by the processing unit.
4. method according to claim 3, it is characterised in that described to be detected by the processing unit
Whether the finger acts on fingerprint collecting region, including：
When the mobile terminal includes capacitance type touch key, and the capacitance type touch key and the pressure
When the distance between sensor is less than first threshold, sensed in the finger by the capacitance type touch key
The capacitance during pressure sensor is acted on, the capacitance is sent to the processing unit, it is described
Capacitance type touch key is electrical connected with the processing unit；
Detect whether the capacitance is less than predetermined capacitance threshold value by the processing unit；
When the capacitance is less than the predetermined capacitance threshold value, the finger is determined by the processing unit
Act on the fingerprint collecting region.
5. method according to claim 3, it is characterised in that described to be detected by the processing unit
Whether the finger acts on fingerprint collecting region, including：
When the mobile terminal includes pressure type touch key-press, and the pressure type touch key-press and the pressure
When the distance between sensor is less than Second Threshold, sensed in the finger by the pressure type touch key-press
The induction pressure parameter during pressure sensor is acted on, the induction pressure parameter is sent to the place
Reason unit, the pressure type touch key-press is electrical connected with the processing unit；
Detect whether the induction pressure parameter is less than predetermined pressure threshold by the processing unit；
When the induction pressure parameter is less than the predetermined pressure threshold, institute is determined by the processing unit
State finger and act on the fingerprint collecting region.
6. a kind of fingerprint identification device, it is characterised in that in mobile terminal, described device to include：
Parameter collection module, is configured to pressure sensor collection finger and acts on the pressure sensor
Pressure parameter, and the pressure parameter is sent to processing unit, the pressure sensor and the treatment
Unit is electrical connected；
First detection module, is configured to the processing unit and detects what the parameter collection module was obtained
Whether the pressure parameter meets predetermined condition；
Sensor starting module, is configured as the first detection module and detects that the pressure parameter meets
During the predetermined condition, fingerprint Identification sensor, the processing unit and institute are started by the processing unit
Fingerprint Identification sensor is stated to be electrical connected；
Fingerprint identification module, is configured to the fingerprint that the fingerprint Identification sensor recognizes the finger,
The finger acts on the pressure sensor and the fingerprint Identification sensor simultaneously.
7. device according to claim 6, it is characterised in that the sensor starting module, including：
Signal generation submodule, is configured to the processing unit generation hardware interrupt；
Sensor starts submodule, is configured to the processing unit and gives birth to the signal generation submodule
Into the hardware interrupt be sent to the fingerprint Identification sensor, the hardware interrupt is used to refer to
Show that the fingerprint Identification sensor carries out fingerprint recognition.
8. the device according to claim 6 or 7, it is characterised in that described device, also includes：
Second detection module, is configured to the processing unit and detects whether the finger acts on fingerprint
Pickup area, the fingerprint collecting region is the fingerprint Identification sensor accurate acquisition to the region of fingerprint；
Operation trigger module, being configured as second detection module, to detect that the finger is acted on described
During fingerprint collecting region, trigger described by processing unit startup described in performing by the processing unit
The operation of fingerprint Identification sensor.
9. device according to claim 8, it is characterised in that second detection module, including：
First collection submodule, being configured as the mobile terminal includes capacitance type touch key, and described
When the distance between capacitance type touch key and described pressure sensor are less than first threshold, by the electric capacity
Formula touch key-press senses the capacitance when the finger acts on the pressure sensor, by the capacitance
The processing unit is sent to, the capacitance type touch key is electrical connected with the processing unit；
First detection sub-module, is configured to the processing unit detection the first collection submodule and obtains
Whether the capacitance for arriving is less than predetermined capacitance threshold value；
First determination sub-module, is configured as first detection sub-module and detects that the capacitance is less than
During the predetermined capacitance threshold value, determine that the finger acts on the fingerprint collecting area by the processing unit
Domain.
10. device according to claim 8, it is characterised in that second detection module, including：
Second collection submodule, being configured as the mobile terminal includes pressure type touch key-press, and described
When the distance between pressure type touch key-press and described pressure sensor are less than Second Threshold, by the pressure
Formula touch key-press senses the induction pressure parameter when the finger acts on the pressure sensor, will be described
Induction pressure parameter is sent to the processing unit, and the pressure type touch key-press is electrical with the processing unit
It is connected；
Second detection sub-module, is configured to the processing unit detection the second collection submodule and obtains
Whether the induction pressure parameter for arriving is less than predetermined pressure threshold；
Second determination sub-module, is configured as second detection sub-module and detects the induction pressure ginseng
When number is less than the predetermined pressure threshold, determine that the finger acts on the fingerprint by the processing unit
Pickup area.
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| CN201510862402.7A CN106815546B (en) | 2015-12-01 | 2015-12-01 | Fingerprint identification method and device |
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