CN108090438A - fingerprint collecting method and device - Google Patents
fingerprint collecting method and device Download PDFInfo
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- CN108090438A CN108090438A CN201711334505.1A CN201711334505A CN108090438A CN 108090438 A CN108090438 A CN 108090438A CN 201711334505 A CN201711334505 A CN 201711334505A CN 108090438 A CN108090438 A CN 108090438A
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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
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Abstract
The embodiment of the present disclosure is on a kind of fingerprint collecting method and device, belongs to fingerprint collecting technical field.The described method includes：Receive the finger down event that the fingerprint sensor reports；The contact area that the fingerprint sensor reports is obtained, the contact area is the contact area of the finger and the contact surface of the fingerprint sensor；When the contact area is not up to the preset area, every the contact area that the preset duration acquisition fingerprint sensor reports；When the contact area reaches the preset area, the fingerprint sensor is controlled to gather the fingerprint image of the finger.Since key-course can receive a contact area every preset duration, user, which only needs to translate on the contact surface to correct finger position and can trigger key-course, receives the contact area, can improve the efficiency of fingerprint recognition.
Description
Technical field
This disclosure relates to fingerprint collecting technical field, more particularly to a kind of fingerprint collecting method and device.
Background technology
Fingerprint recognition is widely used in as a kind of identity identifying technology of high reliability in terminal.Fingerprint recognition mistake
Journey includes fingerprint collecting stage and fingerprint matching stage.
In the fingerprint collecting stage, if fingerprint sensor detects finger down, the finger down is reported to key-course
Event, at this point, key-course starts to receive the fingerprint related data that fingerprint sensor reports.Then, key-course is passed according to fingerprint
The contact area for the finger that sense chip reports, detects whether the contact area reaches preset area；If not up to preset area,
Key-course stops receiving the fingerprint related data that fingerprint sensor reports, until being received when receiving finger down event again
The fingerprint related data；If reaching preset area, key-course triggering fingerprint sensor carries out fingerprint image acquisition.
If user, when carrying out fingerprint recognition for the first time, the contact area of finger and fingerprint sensor is less than preset area,
Then user needs to lift finger and falls amendment finger position again, could trigger the contact surface that key-course detects finger again
Whether product reaches preset area, at this point, user needs at least to perform the process once lifted finger and fallen, the effect of fingerprint recognition
Rate is relatively low.
The content of the invention
The embodiment of the present disclosure provides a kind of fingerprint collecting method and device, and technical solution is as follows：
According to the embodiment of the present disclosure in a first aspect, a kind of fingerprint collecting method is provided, for being provided with fingerprint sensing
The terminal of chip, this method include：
The finger down event that the fingerprint sensor reports is received, the finger down event is the fingerprint sensing
Chip detects the presence of what is reported during finger down；
The contact area that the fingerprint sensor reports is obtained, the contact area passes for the finger and the fingerprint
The contact area of the contact surface of sense chip；
When the contact area is not up to the preset area, obtained every preset duration on the fingerprint sensor
The contact area of report；
When the contact area reaches the preset area, the fingerprint sensor is controlled to gather the finger of the finger
Print image.
Optionally, the method further includes：
If after the finger down event is received, the number for obtaining the contact area reaches preset times, then
Stop receiving the contact area that the fingerprint sensor reports.
Optionally, the value range of the preset duration is：More than or equal to 5 milliseconds and less than or equal to 10 milliseconds.
Optionally, the contact area reported every the preset duration reception fingerprint sensor, including：
Fingerprint sensor contact surface described in long scan when scanning is controlled, obtains the contact area, it is described
It scans duration and is less than or equal to the preset duration；
Every preset duration the fingerprint sensor is controlled to report the last contact area collected.
Optionally, the method further includes：
The preset duration is configured according to the chip parameter of the fingerprint sensor.
Optionally, the method further includes：
Show that duration sets interface；
Setting signal according in the duration interface being set to receive determines the preset duration.
According to the second aspect of the embodiment of the present disclosure, a kind of fingerprint acquisition device is provided, for being provided with fingerprint sensing
The terminal of chip, the device include：
Event receiving module is configured as receiving the finger down event that the fingerprint sensor reports, the finger
The event of pressing is that the fingerprint sensor reports when detecting the presence of finger down；
Area acquisition module, the finger down event for being configured as being reported according to the event receiving module obtain institute
The contact area that fingerprint sensor reports is stated, the contact area is the finger and the contact surface of the fingerprint sensor
Contact area；
Area receiving module is additionally configured to be not up to institute in the contact area that the area acquisition module is got
When stating preset area, every the contact area that the preset duration acquisition fingerprint sensor reports；
Finger print acquisition module is configured as reaching described pre- in the contact area that the area receiving module is got
If during area, the fingerprint sensor is controlled to gather the fingerprint image of the finger.
Optionally, described device further includes：
Number acquisition module is configured as after the finger down event is received, and is obtaining the contact area
Number when reaching preset times, stop receiving the contact area that the fingerprint sensor reports.
Optionally, the value range of the preset duration is：More than or equal to 5 milliseconds and less than or equal to 10 milliseconds.
Optionally, the area receiving module, including：
Control unit is configured as controlling fingerprint sensor contact surface described in long scan when scanning, obtain
The contact area, the scanning duration are less than or equal to the preset duration；
Receiving unit is configured as every preset duration the fingerprint sensor being controlled to report what the last time collected
Contact area.
Optionally, described device further includes：
Time-length configuration module is configured as configuring the preset duration according to the chip parameter of the fingerprint sensor.
Optionally, described device further includes：
Interface display module is configured as display duration and sets interface；
Duration determining module is configured as being determined according to the setting signal in the duration interface being set to receive described pre-
If duration.
The third aspect, provides a kind of terminal, and the terminal includes processor and memory, is stored in the memory
At least one instruction, described instruction are loaded by the processor and are performed to realize fingerprint collecting side as described in relation to the first aspect
Method.
Fourth aspect provides a kind of computer readable storage medium, which is characterized in that is stored in the storage medium
At least one instruction, described instruction are loaded by processor and are performed to realize fingerprint collecting method as described in relation to the first aspect.
The technical solution that the embodiment of the present disclosure provides can include the following benefits：
By after finger down event is received, if the contact area of finger and contact surface is not up to preset area,
The contact area then reported every preset duration reception fingerprint sensor so that user does not reach in the contact area of finger for the first time
During to preset area, triggering fingerprint sensor generation finger down event is pressed down again without finger is lifted, so as to trigger
Key-course obtains contact area again；Since key-course can receive a contact area every preset duration, user only needs
It to translate on the contact surface and correct finger position and can trigger key-course and receive the contact area, fingerprint recognition can be improved
Efficiency.
It should be appreciated that above general description and following detailed description are only exemplary and explanatory, not
The disclosure can be limited.
Description of the drawings
Attached drawing herein is merged in specification and forms the part of this specification, shows the implementation for meeting the disclosure
Example, and for explaining the principle of the disclosure together with specification.
Fig. 1 is the structure diagram of fingerprint acquisition system in the terminal that an illustrative examples provide；
Fig. 2 is the method flow diagram according to the fingerprint collecting method shown in one exemplary embodiment of the disclosure；
Fig. 3 is the method flow diagram according to the fingerprint collecting method shown in disclosure another exemplary embodiment；
Fig. 4 is the signal of the fingerprint image collected according to the fingerprint sensor shown in one exemplary embodiment of the disclosure
Figure；
Fig. 5 is the block diagram according to the fingerprint acquisition device shown in one exemplary embodiment of the disclosure；
Fig. 6 is the structure diagram according to a kind of terminal shown in an exemplary embodiment.
Specific embodiment
Here exemplary embodiment will be illustrated in detail, example is illustrated in the accompanying drawings.Following description is related to
During attached drawing, unless otherwise indicated, the same numbers in different attached drawings represent the same or similar element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the disclosure.On the contrary, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects be described in detail in claims, the disclosure.
Refer to the program stored in memory that can realize some functions or instruction in " module " being mentioned above；
" multiple " mentioned in this article refer to two or more."and/or", describes the incidence relation of affiliated partner, and expression can be with
There are three kinds of relations, for example, A and/or B, can represent：Individualism A exists simultaneously A and B, these three feelings of individualism B
Condition.It is a kind of relation of "or" that character "/", which typicallys represent forward-backward correlation object,.
Fingerprint module includes fingerprint sensor.There are multiple sensing units (Pixel), multiple senses on fingerprint sensor
Unit is answered to arrange in matrix, sensing unit is used to sense fingerprint signal and output data, the depth of the fingerprint signal, that is, fingerprint texture
Spend information.
Optionally, fingerprint module further includes protection cap, which is located on fingerprint sensor.Protection cap for pair
Fingerprint sensor in fingerprint module is protected.
Optionally, the one side that protection is placed on the outside of terminal is the contact surface of fingerprint sensor, and user should by touching
Contact surface triggering fingerprint sensor acquisition fingerprint.
In correlation technique, fingerprint sensor detects finger down, and after key-course sends finger down event,
Key-course can only receive a fingerprint related data, and the contact area of finger and contact surface is determined according to the fingerprint related data
Whether preset area is greater than or equal to.In this case, if user carries out fingerprint recognition, finger passes for the first time with fingerprint
The contact area of the contact surface of sense chip is not up to preset area, and key-course can stop receiving the finger that fingerprint sensor reports
Line related data.User needs to lift finger to press again, to trigger the finger that key-course receives fingerprint sensor and reports again
Line related data.In a fingerprint identification process, user needs to perform the process that finger is lifted and pressed at least twice, fingerprint
What is identified is less efficient.
Based on above-mentioned technical problem, in the embodiment of the present disclosure, after key-course receives finger down event, can repeatedly connect
The contact area that reports of fingerprint sensor is received, is lifted without user by finger and is pressed down triggering key-course again and connect
Contacting surface is accumulated, and can improve the efficiency of fingerprint recognition.It is illustrated below using schematical embodiment.
The fingerprint collecting method that each embodiment of the disclosure provides is suitable for the terminal for configuring fingerprint sensor, the end
It holds as smart mobile phone, tablet computer, E-book reader etc..
As shown in Figure 1, terminal includes fingerprint module 100 and key-course 120.
Wherein, fingerprint module 100 includes fingerprint sensor 101 and is arranged on the guarantor of 110 top of fingerprint sensor
Protecting cover 102, and adhesive bonding is used between fingerprint sensor 101 and protection cap 102.Protection cap 102 is using glass, Lan Bao
Stone or monocrystalline silicon material.The fingerprint module can be that push type fingerprint module, touch fingerprint module, and the fingerprint module can be with
It is provided in the front fingerprint module of terminal screen side or is arranged on the back side fingerprint module of terminal back cover side, may be used also
To be provided in the fingerprint module inside terminal screen, the embodiment of the present disclosure is defined not to this.Protection cap 102 the upper surface of
For contact surface.
Optionally, fingerprint module 110 is when detecting the presence of finger down, generates finger down event, and by the finger
The event of pressing is sent to key-course 120.
Optionally, fingerprint module 110 is communicated with key-course 120 by process.
Optionally, key-course 120 can be the operating system in terminal；Alternatively, the key-course should for what is installed in terminal
Use program；Alternatively, the key-course is for driving the driver of the fingerprint sensor 101, the present embodiment does not limit this
It is fixed.
After key-course 120 receives finger down event, determine finger and contact surface contact area whether be more than or
Equal to preset area；If the contact area is greater than or equal to preset area, the fingerprint of fingerprint sensor acquisition finger is controlled
Image；If the contact area is less than or equal to preset area, fingerprint sensor is controlled to continue to gather finger and contact surface
Contact area, and the contact area that the fingerprint sensor reports is obtained every preset duration, until the contact area be more than or
The fingerprint image of fingerprint sensor acquisition finger is controlled during equal to preset area, alternatively, until obtaining the number of contact area
When reaching preset times, stop receiving the contact area that fingerprint sensor reports, and terminate this fingerprint identification process.
Optionally, finger down event includes the contact area of finger and contact surface.
Fig. 2 is the flow chart according to the fingerprint collecting method shown in one exemplary embodiment of the disclosure.The present embodiment is with each
To be illustrated exemplified by the key-course in terminal, this method may include steps of the executive agent of step.
In step 201, the finger down event that fingerprint sensor reports is received, which is that fingerprint passes
Sense chip detects the presence of what is reported during finger down.
Optionally, fingerprint sensor includes but not limited to：Optical finger print chip, capacitive fingerprint chip and ultrasonic fingerprint
At least one of chip.Fingerprint sensor, which has, to be detected whether there are object contact, and detects whether the object is finger
Function.
By fingerprint sensor for exemplified by optical finger print chip, which includes the light arranged in two dimensions
Sensing unit array.When being contacted there are finger with the contact surface of optical finger print chip, in optical finger print chip with contact portion
The energy value of the optical signal of corresponding light sensing unit is higher than default light energy value, at this point, optical finger print chip detects exist
Object is contacted with contact surface, and then, which determines whether the object is hand according to the energy value tag of optical signal
Refer to, and finger down event is generated when determining that the object is finger.
By fingerprint sensor for exemplified by capacitive fingerprint chip, which includes the electricity arranged in two dimensions
Hold sensing unit array.When being contacted there are finger with the contact surface of capacitive fingerprint chip, in capacitive fingerprint chip with contact site
The capacitance for dividing corresponding capacitor sensing unit is no longer default capacitance value, at this point, capacitive fingerprint chip detects that there are fingers
It is contacted with contact surface, and generates finger down event.Wherein, default capacitance value is：There is no contacted with capacitive fingerprint chip
Object when, the capacitance of each capacitor sensing unit in the capacitive fingerprint chip.
By fingerprint sensor for exemplified by ultrasonic fingerprint chip, which includes arranging in two dimensions
Phonoreception survey cell array.When being contacted there are finger with the contact surface of ultrasonic fingerprint chip, in ultrasonic fingerprint chip with
The energy value of the acoustical signal of the corresponding sound sensing unit of contact portion is higher than default acoustic energy magnitude, at this point, ultrasonic fingerprint chip
It detects to contact with contact surface there are object, then, which determines this according to the energy value tag of acoustical signal
Whether object is finger, and generates finger down event when determining that the object is finger.
Optionally, after fingerprint sensor generation finger down event, send the fingerprint to key-course and press event.
Optionally, finger down event includes the contact area of finger and contact surface.
In step 202, the contact area that fingerprint sensor reports is obtained, which is finger and fingerprint sensing
The contact area of the contact surface of chip.
Optionally, when finger down event includes the contact area of finger and contact surface, key-course is from the finger down
The contact area is obtained in event；Alternatively, when finger down event does not include the contact area of finger and contact surface, key-course
After finger down event is received, control fingerprint sensor reports the contact area, correspondingly, fingerprint sensor root
The contact area is obtained according to the control of key-course, and the contact area is reported into key-course.
In step 203, when contact area is not up to preset area, obtained every preset duration on fingerprint sensor
The contact area of report.
Optionally, preset duration is that key-course is configured according to the chip parameter of fingerprint sensor.In this way, at end
When fingerprint sensor in end is replaced, key-course can be determined to close according to the chip parameter of the fingerprint sensor after replacement
Suitable preset duration.
Optionally, chip parameter includes but not limited to：At least one in the model of fingerprint sensor, size and type
Kind.
Optionally, key-course configures preset duration according to the chip parameter of fingerprint sensor, including：Obtain fingerprint sensing
The chip parameter of chip；According to the correspondence of chip parameter and preset duration, determine that the fingerprint sensor in terminal corresponds to
Preset duration.
Optionally, preset duration can also be user setting.At this point, terminal can show that duration sets interface；Key-course
Setting signal according in duration interface being set to receive determines the preset duration.
Optionally, preset duration can also be default setting in terminal；Alternatively, be that server is sent, the present embodiment
The mode for not obtaining preset duration to key-course is construed as limiting.
Optionally, the value range of preset duration is：More than or equal to 5 milliseconds and less than or equal to 10 milliseconds, the present embodiment is not
The numerical value of preset duration is construed as limiting.
Optionally, key-course control fingerprint sensor long scan contact surface when scanning, obtains contact area, scans
Duration is less than or equal to preset duration；Key-course reports what the last time collected every preset duration control fingerprint sensor
The contact area scanned.
Optionally, when scanning duration less than preset duration, key-course controls fingerprint sensor to obtain the last time
To contact area report to key-course；When scanning duration equal to preset duration, fingerprint sensor obtains contact area
Before moment is located at the time of key-course reception contact surface is accumulated.
In step 204, when contact area reaches preset area, the fingerprint image of control fingerprint sensor acquisition finger
Picture.
Optionally, after fingerprint sensor collects fingerprint image, which is reported into key-course, key-course pair
The fingerprint image is parsed to obtain fingerprint characteristic；The fingerprint characteristic is matched with template characteristic；In fingerprint characteristic and mould
When plate features match, fingerprint recognition success；When fingerprint characteristic and template characteristic mismatch, fingerprint recognition failure.
Optionally, if the number that key-course obtains contact area reaches preset times, stop receiving the fingerprint sensing core
The contact area that piece reports.
In conclusion fingerprint collecting method provided in this embodiment, by after finger down event is received, if hand
Refer to and be not up to preset area with the contact area of contact surface, then the contact surface reported every preset duration reception fingerprint sensor
Product so that user presses down triggering and refer to again when the contact area of finger for the first time is not up to preset area without finger is lifted
Line sensing chip generates finger down event, and contact area is obtained again so as to trigger key-course；Since key-course can be every pre-
If duration receives a contact area, therefore, user, which only needs to translate on the contact surface, to be corrected finger position and can trigger control
Preparative layer receives the contact area, can improve the efficiency of fingerprint recognition.
In addition, preset duration is less than or equal to by the scanning duration that fingerprint sensor is set to scan contact surface so that refer to
When line sensing chip needs the reception contact surface to accumulate every time, the data that fingerprint sensor reports can be got, can improve and refer to
Line sensing chip obtains the validity of contact area.
In addition, by after finger down event is received, if the number for obtaining contact area reaches preset times,
Stop receiving the contact area that fingerprint sensor reports, avoid key-course and constantly connect when finger false touch is to fingerprint module
The problem of contact area of receipts finger and contact surface, saves the resource of terminal.
In addition, preset duration is set by the chip parameter according to fingerprint sensor so that the fingerprint in terminal passes
When sense chip is replaced, when key-course can determine suitably default according to the chip parameter of the fingerprint sensor after replacement
It is long, realize the dynamic configuration to preset duration.
Fig. 3 is the method flow diagram according to the fingerprint collecting method shown in disclosure another exemplary embodiment.This implementation
Exemplified by example is used in terminal shown in FIG. 1 in this way, this method may include steps of.
In step 301, fingerprint sensor detects whether that there are finger downs；Detect exist in fingerprint sensor
During finger down, step 302 is performed；When fingerprint sensor does not detect that finger is close, this step is continued to execute.
In step 302, fingerprint sensor generation finger down event.
Optionally, finger down event includes the contact area of the contact surface of finger and fingerprint sensor.
In step 303, fingerprint sensor reports the finger down event to key-course.
In step 304, key-course receives the finger down event that fingerprint sensor reports.
In step 305, key-course obtains contact area, and by the contact area compared with preset area；It is connecing
When contacting surface product is less than preset area, step 306 is performed；When the contact area of finger is greater than or equal to preset area, step is performed
Rapid 311.
Optionally, when including the contact area of contact surface of finger and fingerprint sensor in finger down event, control
Layer obtains contact area from finger down event.
Within step 306, whether the number of key-course detection acquisition contact area reaches preset times；Reaching default time
During number, terminate flow；In not up to preset times, step 307 is performed.
Optionally, preset times can be that key-course is configured according to the chip parameter of fingerprint sensor；Alternatively, it is logical
It crosses and in number interface is set to receive what number setting signal was determined；Alternatively, it is default setting in terminal；Alternatively, it is
What server was sent, the present embodiment is not construed as limiting the acquisition modes of preset times.
In step 307, key-course control fingerprint sensor long scan contact surface when scanning, obtains contact surface
Product, the scanning duration are less than or equal to preset duration.
In step 308, fingerprint sensor according to the control of key-course long scan contact surface when scanning, connect
Contacting surface is accumulated.
In a step 309, duration of the key-course after determining that contact area is less than preset area reaches preset duration
When, control fingerprint sensor reports the last contact area collected.
In the step 310, fingerprint sensor reports contact area according to the control of key-course, and correspondingly, key-course is held
Row step 305.
In step 311, the fingerprint image of key-course control fingerprint sensor acquisition finger.
Optionally, after fingerprint sensor collects fingerprint image, which is reported into key-course, key-course pair
The fingerprint image is parsed to obtain fingerprint characteristic；The fingerprint characteristic with template characteristic is matched, obtains fingerprint recognition knot
Fruit.Schematically, fingerprint sensor collect fingerprint image it is as shown in Figure 4 in 41, in Fig. 4, crosspoint 411 and terminate
Point 412 is fingerprint characteristic.Certainly, which can also be other types, and therefore not to repeat here for the present embodiment.
In conclusion fingerprint collecting method provided in this embodiment, by after finger down event is received, if hand
Refer to and be not up to preset area with the contact area of contact surface, then the contact surface reported every preset duration reception fingerprint sensor
Product so that user presses down triggering and refer to again when the contact area of finger for the first time is not up to preset area without finger is lifted
Line sensing chip generates finger down event, and contact area is obtained again so as to trigger key-course；Since key-course can be every pre-
If duration receives a contact area, therefore, user, which only needs to translate on the contact surface, to be corrected finger position and can trigger control
Preparative layer receives the contact area, can improve the efficiency of fingerprint recognition.
In addition, preset duration is less than or equal to by the scanning duration that fingerprint sensor is set to scan contact surface so that refer to
When line sensing chip needs the reception contact surface to accumulate every time, the data that fingerprint sensor reports can be got, can improve and refer to
Line sensing chip obtains the validity of contact area.
In addition, by after finger down event is received, if the number for obtaining contact area reaches preset times,
Stop receiving the contact area that fingerprint sensor reports, avoid key-course and constantly connect when finger false touch is to fingerprint module
The problem of contact area of receipts finger and contact surface, saves the resource of terminal.
In addition, preset duration is set by the chip parameter according to fingerprint sensor so that the fingerprint in terminal passes
When sense chip is replaced, when key-course can determine suitably default according to the chip parameter of the fingerprint sensor after replacement
It is long, realize the dynamic configuration to preset duration.
Following is embodiment of the present disclosure, can be used for performing embodiments of the present disclosure.It is real for disclosure device
The details not disclosed in example is applied, refer to embodiments of the present disclosure.
Fig. 5 is the block diagram according to the fingerprint acquisition device shown in one exemplary embodiment of the disclosure.The device can pass through
Hardware or software and hardware combining are implemented as terminal all or part of.The device includes：Event receiving module 510, area obtain
Modulus block 520, area receiving module 530 and finger print acquisition module 540.
Event receiving module 510 is configured as receiving the finger down event that the fingerprint sensor reports, the hand
It is that the fingerprint sensor reports when detecting the presence of finger down that finger, which presses event,；
Area acquisition module 520 is configured as the finger down event reported according to the event receiving module 510
The contact area that the fingerprint sensor reports is obtained, the contact area is the finger and the fingerprint sensor
The contact area of contact surface；
Area receiving module 530 is additionally configured to the contact area got in the area acquisition module 520 not
When reaching the preset area, every the contact area that the preset duration acquisition fingerprint sensor reports；
Finger print acquisition module 540 is configured as reaching in the contact area that the area receiving module 530 is got
During the preset area, the fingerprint sensor is controlled to gather the fingerprint image of the finger.
Optionally, described device further includes：Number acquisition module.
Number acquisition module is configured as after the finger down event is received, and is obtaining the contact area
Number when reaching preset times, stop receiving the contact area that the fingerprint sensor reports.
Optionally, the value range of the preset duration is：More than or equal to 5 milliseconds and less than or equal to 10 milliseconds.
Optionally, the area receiving module 530, including：Control unit and receiving unit.
Control unit is configured as controlling fingerprint sensor contact surface described in long scan when scanning, obtain
The contact area, the scanning duration are less than or equal to the preset duration；
Receiving unit is configured as every preset duration the fingerprint sensor being controlled to report what the last time collected
Contact area.
Optionally, described device further includes：
Time-length configuration module is configured as configuring the preset duration according to the chip parameter of the fingerprint sensor.
Optionally, described device further includes：
Interface display module is configured as display duration and sets interface；
Duration determining module is configured as being determined according to the setting signal in the duration interface being set to receive described pre-
If duration.
Correlative detail refers to above method embodiment.
In conclusion fingerprint acquisition device provided in this embodiment, by after finger down event is received, if hand
Refer to and be not up to preset area with the contact area of contact surface, then the contact surface reported every preset duration reception fingerprint sensor
Product so that user presses down triggering and refer to again when the contact area of finger for the first time is not up to preset area without finger is lifted
Line sensing chip generates finger down event, and contact area is obtained again so as to trigger key-course；Since key-course can be every pre-
If duration receives a contact area, therefore, user, which only needs to translate on the contact surface, to be corrected finger position and can trigger control
Preparative layer receives the contact area, can improve the efficiency of fingerprint recognition.
In addition, preset duration is less than or equal to by the scanning duration that fingerprint sensor is set to scan contact surface so that refer to
When line sensing chip needs the reception contact surface to accumulate every time, the data that fingerprint sensor reports can be got, can improve and refer to
Line sensing chip obtains the validity of contact area.
In addition, by after finger down event is received, if the number for obtaining contact area reaches preset times,
Stop receiving the contact area that fingerprint sensor reports, avoid key-course and constantly connect when finger false touch is to fingerprint module
The problem of contact area of receipts finger and contact surface, saves the resource of terminal.
In addition, preset duration is set by the chip parameter according to fingerprint sensor so that the fingerprint in terminal passes
When sense chip is replaced, when key-course can determine suitably default according to the chip parameter of the fingerprint sensor after replacement
It is long, realize the dynamic configuration to preset duration.
Fig. 6 shows the structure diagram for the terminal 600 that an illustrative embodiment of the invention provides.The terminal 600 can be with
It is portable mobile termianl, such as：Smart mobile phone, tablet computer, MP3 player (Moving Picture Experts
Group Audio Layer III, dynamic image expert's compression standard audio level 3), MP4 (Moving Picture
Experts Group Audio Layer IV, dynamic image expert's compression standard audio level 4) player.Terminal 600 may be used also
It can be referred to as other titles such as user equipment, portable terminal.
In general, terminal 600 includes：Processor 601 and memory 602.
Processor 601 can include one or more processing cores, such as 4 core processors, 8 core processors etc..Place
DSP (Digital Signal Processing, Digital Signal Processing), FPGA (Field- may be employed in reason device 601
Programmable Gate Array, field programmable gate array), PLA (Programmable Logic Array, may be programmed
Logic array) at least one of example, in hardware realize.Processor 601 can also include primary processor and coprocessor, main
Processor is the processor for being handled data in the awake state, also referred to as CPU (Central Processing
Unit, central processing unit)；Coprocessor is the low power processor for being handled data in the standby state.
In some embodiments, processor 601 can be integrated with GPU (Graphics Processing Unit, image processor),
GPU is used to be responsible for rendering and drawing for content to be shown needed for display screen.In some embodiments, processor 601 can also wrap
AI (Artificial Intelligence, artificial intelligence) processor is included, which is used to handle related machine learning
Calculating operation.
Memory 602 can include one or more computer readable storage mediums, which can
To be tangible and non-transient.Memory 602 may also include high-speed random access memory and nonvolatile memory,
Such as one or more disk storage equipments, flash memory device.In some embodiments, it is non-transient in memory 602
Computer readable storage medium for storing at least one instruction, at least one instruction for by processor 601 it is performed with
Realize fingerprint collecting method provided herein.
In some embodiments, terminal 600 is also optional includes：Peripheral device interface 603 and at least one peripheral equipment.
Specifically, peripheral equipment includes：Radio circuit 604, touch display screen 605, camera 606, voicefrequency circuit 607, positioning component
At least one of 608 and power supply 609.
Peripheral device interface 603 can be used for I/O (Input/Output, input/output) is relevant at least one outer
Peripheral equipment is connected to processor 601 and memory 602.In some embodiments, processor 601, memory 602 and peripheral equipment
Interface 603 is integrated on same chip or circuit board；In some other embodiments, processor 601, memory 602 and outer
Any one or two in peripheral equipment interface 603 can realize on individual chip or circuit board, the present embodiment to this not
It is limited.
Radio circuit 604 is also referred to as electromagnetic signal for receiving and emitting RF (Radio Frequency, radio frequency) signal.It penetrates
Frequency circuit 604 is communicated by electromagnetic signal with communication network and other communication equipments.Radio circuit 604 turns electric signal
It is changed to electromagnetic signal to be sent, alternatively, the electromagnetic signal received is converted to electric signal.Optionally, radio circuit 604 wraps
It includes：Antenna system, RF transceivers, one or more amplifiers, tuner, oscillator, digital signal processor, codec chip
Group, user identity module card etc..Radio circuit 604 can be carried out by least one wireless communication protocol with other terminals
Communication.The wireless communication protocol includes but not limited to：WWW, Metropolitan Area Network (MAN), Intranet, each third generation mobile communication network (2G, 3G,
4G and 5G), WLAN and/or WiFi (Wireless Fidelity, Wireless Fidelity) network.In some embodiments, penetrate
Frequency circuit 604 can also include the related circuits of NFC (Near Field Communication, wireless near field communication), this
Application is not limited this.
Touch display screen 605 is used to show UI (User Interface, user interface).The UI can include figure, text
Sheet, icon, video and its their any combination.Touch display screen 605 also have acquisition on the surface of touch display screen 605 or
The ability of the touch signal of surface.The touch signal can be inputted to processor 601 as control signal and handled.It touches
Display screen 605 is touched for providing virtual push button and/or dummy keyboard, also referred to as soft button and/or soft keyboard.In some embodiments
In, touch display screen 605 can be one, set the front panel of terminal 600；In further embodiments, touch display screen 605
It can be at least two, be separately positioned on the different surfaces of terminal 600 or in foldover design；In still other embodiments, touch
Display screen 605 can be flexible display screen, be arranged on the curved surface of terminal 600 or on fold plane.Even, touch display screen
605 can also be arranged to non-rectangle irregular figure namely abnormity screen.LCD (Liquid may be employed in touch display screen 605
Crystal Display, liquid crystal display), OLED (Organic Light-Emitting Diode, Organic Light Emitting Diode)
Etc. materials prepare.
CCD camera assembly 606 is used to gather image or video.Optionally, CCD camera assembly 606 include front camera and
Rear camera.In general, front camera is used to implement video calling or self-timer, rear camera is used to implement photo or video
Shooting.In some embodiments, rear camera at least two are main camera, depth of field camera, wide-angle imaging respectively
Any one in head, to realize that main camera and the fusion of depth of field camera realize background blurring function, main camera and wide-angle
Pan-shot and VR (Virtual Reality, virtual reality) shooting function are realized in camera fusion.In some embodiments
In, CCD camera assembly 606 can also include flash lamp.Flash lamp can be monochromatic warm flash lamp or double-colored temperature is glistened
Lamp.Double-colored temperature flash lamp refers to the combination of warm light flash lamp and cold light flash lamp, can be used for the light compensation under different-colour.
Voicefrequency circuit 607 is used to provide the audio interface between user and terminal 600.Voicefrequency circuit 607 can include wheat
Gram wind and loud speaker.Microphone is used to gather the sound wave of user and environment, and converts sound waves into electric signal and input to processor
601 are handled or are inputted to radio circuit 604 to realize voice communication.For stereo acquisition or the purpose of noise reduction, wheat
Gram wind can be multiple, be separately positioned on the different parts of terminal 600.Microphone can also be array microphone or omnidirectional's acquisition
Type microphone.Loud speaker is then used to the electric signal from processor 601 or radio circuit 604 being converted to sound wave.Loud speaker can
To be traditional wafer speaker or piezoelectric ceramic loudspeaker.When loud speaker is piezoelectric ceramic loudspeaker, not only may be used
To convert electrical signals to the audible sound wave of the mankind, the sound wave that the mankind do not hear can also be converted electrical signals to be surveyed
Away from etc. purposes.In some embodiments, voicefrequency circuit 607 can also include earphone jack.
Positioning component 608 is used for the current geographic position of positioning terminal 600, to realize navigation or LBS (Location
Based Service, location based service).Positioning component 608 can be the GPS (Global based on the U.S.
Positioning System, global positioning system), China dipper system or Russia Galileo system positioning group
Part.
Power supply 609 is used to be powered for the various components in terminal 600.Power supply 609 can be alternating current, direct current,
Disposable battery or rechargeable battery.When power supply 609 includes rechargeable battery, which can be wired charging electricity
Pond or wireless charging battery.Wired charging battery is the battery to be charged by Wireline, and wireless charging battery is by wireless
The battery of coil charges.The rechargeable battery can be also used for supporting fast charge technology.
In some embodiments, terminal 600 further include there are one or multiple sensors 610.The one or more sensors
610 include but not limited to：Acceleration transducer 611, gyro sensor 612, pressure sensor 613, fingerprint sensor 614,
Optical sensor 615 and proximity sensor 616.
The acceleration that acceleration transducer 611 can be detected in three reference axis of the coordinate system established with terminal 600 is big
It is small.For example, acceleration transducer 611 can be used for detecting component of the acceleration of gravity in three reference axis.Processor 601 can
With the acceleration of gravity signal gathered according to acceleration transducer 611, control touch display screen 605 is regarded with transverse views or longitudinal direction
Figure carries out the display of user interface.Acceleration transducer 611 can be also used for game or the acquisition of the exercise data of user.
Gyro sensor 612 can be with the body direction of detection terminal 600 and rotational angle, and gyro sensor 612 can
Acquisition user to be cooperateed with to act the 3D of terminal 600 with acceleration transducer 611.Processor 601 is according to gyro sensor 612
The data of acquisition can implement function such as：When action induction (for example changing UI according to the tilt operation of user), shooting
Image stabilization, game control and inertial navigation.
Pressure sensor 613 can be arranged on the side frame of terminal 600 and/or the lower floor of touch display screen 605.Work as pressure
When sensor 613 is arranged on the side frame of terminal 600, gripping signal of the user to terminal 600 can be detected, is believed according to the gripping
Number carry out right-hand man's identification or prompt operation.When pressure sensor 613 is arranged on the lower floor of touch display screen 605, Ke Yigen
According to user to the pressure operation of touch display screen 605, realize and the operability control on UI interfaces is controlled.Operability
Control includes at least one of button control, scroll bar control, icon control, menu control.
Fingerprint sensor 614 is used to gather the fingerprint of user, with the identity according to the fingerprint recognition user collected.Knowing
When the identity for not going out user is trusted identity, by processor 601 the user is authorized to perform relevant sensitive operation, the sensitive operation
Including solution lock screen, check encryption information, download software, payment and change setting etc..End can be set in fingerprint sensor 614
Front, the back side or the side at end 600.When being provided with physical button or manufacturer Logo in terminal 600, fingerprint sensor 614 can
To be integrated with physical button or manufacturer Logo.
Optical sensor 615 is used to gather ambient light intensity.In one embodiment, processor 601 can be according to optics
The ambient light intensity that sensor 615 gathers controls the display brightness of touch display screen 605.Specifically, when ambient light intensity is higher
When, heighten the display brightness of touch display screen 605；When ambient light intensity is relatively low, the display for turning down touch display screen 605 is bright
Degree.In another embodiment, the ambient light intensity that processor 601 can also be gathered according to optical sensor 615, dynamic adjust
The acquisition parameters of CCD camera assembly 606.
Proximity sensor 616, also referred to as range sensor are generally arranged at the front of terminal 600.Proximity sensor 616 is used
In the distance between front of acquisition user and terminal 600.In one embodiment, when proximity sensor 616 detects user
When the distance between front of terminal 600 tapers into, by processor 601 touch display screen 605 is controlled to be cut from bright screen state
It is changed to breath screen state；When proximity sensor 616 detects that the distance between front of user and terminal 600 becomes larger, by
Processor 601 controls touch display screen 605 to be switched to bright screen state from breath screen state.
It will be understood by those skilled in the art that the restriction of structure shown in Fig. 6 not structure paired terminal 600, can wrap
It includes and either combines some components or using different component arrangements than illustrating more or fewer components.
One exemplary embodiment of the disclosure provides a kind of computer readable storage medium, is stored in the storage medium
At least one instruction, at least one section of program, code set or instruction set, at least one instruction, at least one section of program, the institute
Code set or instruction set is stated to be loaded by processor and performed to realize fingerprint collecting method as described above.
Those skilled in the art will readily occur to the disclosure its after considering specification and putting into practice invention disclosed herein
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or
Person's adaptive change follows the general principle of the disclosure and including the undocumented common knowledge in the art of the disclosure
Or conventional techniques.Description and embodiments are considered only as illustratively, and the true scope and spirit of the disclosure are by following
Claim is pointed out.
It should be appreciated that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by appended claim.
Claims (14)
1. a kind of fingerprint collecting method, which is characterized in that for being provided with the terminal of fingerprint sensor, the described method includes：
The finger down event that the fingerprint sensor reports is received, the finger down event is the fingerprint sensor
Detect the presence of what is reported during finger down；
The contact area that the fingerprint sensor reports is obtained, the contact area is the finger and the fingerprint sensing core
The contact area of the contact surface of piece；
When the contact area is not up to the preset area, obtain what the fingerprint sensor reported every preset duration
The contact area；
When the contact area reaches the preset area, the fingerprint sensor is controlled to gather the fingerprint image of the finger
Picture.
2. according to the method described in claim 1, it is characterized in that, the method further includes：
If after the finger down event is received, the number for obtaining the contact area reaches preset times, then stops
Receive the contact area that the fingerprint sensor reports.
3. according to the method described in claim 1, it is characterized in that, the value range of the preset duration is：More than or equal to 5 millis
Second and less than or equal to 10 milliseconds.
4. method according to any one of claims 1 to 3, which is characterized in that described to receive the fingerprint every preset duration
The contact area that sensing chip reports, including：
Fingerprint sensor contact surface described in long scan when scanning is controlled, obtains the contact area, the scanning
Duration is less than or equal to the preset duration；
Every preset duration the fingerprint sensor is controlled to report the last contact area collected.
5. method according to any one of claims 1 to 3, which is characterized in that the method further includes：
The preset duration is configured according to the chip parameter of the fingerprint sensor.
6. method according to any one of claims 1 to 3, which is characterized in that the method further includes：
Show that duration sets interface；
Setting signal according in the duration interface being set to receive determines the preset duration.
7. a kind of fingerprint acquisition device, which is characterized in that for being provided with the terminal of fingerprint sensor, described device includes：
Event receiving module is configured as receiving the finger down event that the fingerprint sensor reports, the finger down
Event is that the fingerprint sensor reports when detecting the presence of finger down；
Area acquisition module, the finger down event for being configured as being reported according to the event receiving module obtain the finger
The contact area that line sensing chip reports, the contact area connect for the finger and the contact surface of the fingerprint sensor
Contacting surface is accumulated；
Area receiving module is additionally configured to be not up in the contact area that the area acquisition module is got described pre-
If during area, every the contact area that the preset duration acquisition fingerprint sensor reports；
Finger print acquisition module is configured as reaching the default face in the contact area that the area receiving module is got
During product, the fingerprint sensor is controlled to gather the fingerprint image of the finger.
8. device according to claim 7, which is characterized in that described device further includes：
Number acquisition module is configured as after the finger down event is received, and is obtaining time of the contact area
When number reaches preset times, stop receiving the contact area that the fingerprint sensor reports.
9. device according to claim 7, which is characterized in that the value range of the preset duration is：More than or equal to 5 millis
Second and less than or equal to 10 milliseconds.
10. according to any device of claim 7 to 9, which is characterized in that the area receiving module, including：
Control unit is configured as controlling fingerprint sensor contact surface described in long scan when scanning, obtain described
Contact area, the scanning duration are less than or equal to the preset duration；
Receiving unit is configured as every preset duration the fingerprint sensor being controlled to report the last contact collected
Area.
11. according to any device of claim 7 to 9, which is characterized in that described device further includes：
Time-length configuration module is configured as configuring the preset duration according to the chip parameter of the fingerprint sensor.
12. according to any device of claim 7 to 9, which is characterized in that described device further includes：
Interface display module is configured as display duration and sets interface；
Duration determining module, when being configured as determining described default according to the setting signal in the duration interface being set to receive
It is long.
13. a kind of terminal, which is characterized in that the terminal includes processor and memory, is stored at least in the memory
One instruction, described instruction are loaded by the processor and are performed to realize the fingerprint collecting as described in claim 1 to 6 is any
Method.
14. a kind of computer readable storage medium, which is characterized in that at least one instruction, institute are stored in the storage medium
Instruction is stated to be loaded by processor and performed to realize the fingerprint collecting method as described in claim 1 to 6 is any.
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|---|---|---|---|
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