CN111552399A - Fingerprint unlocking control method and device and mobile terminal - Google Patents
Fingerprint unlocking control method and device and mobile terminal Download PDFInfo
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- CN111552399A CN111552399A CN202010260944.8A CN202010260944A CN111552399A CN 111552399 A CN111552399 A CN 111552399A CN 202010260944 A CN202010260944 A CN 202010260944A CN 111552399 A CN111552399 A CN 111552399A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/3287—Power saving characterised by the action undertaken by switching off individual functional units in the computer system
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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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- 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
- G06V40/1365—Matching; Classification
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Abstract
The disclosure provides a fingerprint unlocking control method and device and a mobile terminal. Acquiring touch operation in a fingerprint sensing area; determining the contact area between the touch operation and the sensing area according to the touch operation; when the contact area meets a preset area threshold, triggering a cover plate lighting signal and identifying the fingerprint in the touch operation; and when the fingerprint is matched with a preset fingerprint template, unlocking. Through the comparison of the contact area and the preset area threshold value, the cover plate is lightened, and the induction area is prevented from being frequently lightened due to the fact that a user touches the cover plate by mistake, so that the energy consumption of the mobile terminal is reduced, and the service life of the mobile terminal is prolonged.
Description
Technical Field
The invention relates to the field of electronic equipment, in particular to a fingerprint unlocking control method and device and a mobile terminal.
Background
Based on the popularity of the full screen, the fingerprint technology under the screen is gradually popular, and the fingerprint technology under the screen is a technology for completing a fingerprint identification unlocking process through the lower part of a cover plate, wherein a fingerprint response area is arranged on the cover plate, and the fingerprint response area is triggered and directly lightened when a user contacts the cover plate, so that the fingerprint response area is frequently lightened due to the fact that the user mistakenly touches the cover plate, the energy consumption of the mobile terminal is higher, and the service life of the mobile terminal is shortened.
Disclosure of Invention
The invention aims to provide a fingerprint unlocking control method and a fingerprint unlocking control device, which solve the problem that a fingerprint response area is frequently lightened due to mistaken touch of a user and a cover plate in the prior art.
According to an aspect of the present disclosure, there is provided a fingerprint unlocking control method, including: acquiring touch operation in a fingerprint sensing area; determining the contact area between the touch operation and the sensing area according to the touch operation; when the contact area meets a preset area threshold, triggering a cover plate lighting signal and identifying the fingerprint in the touch operation; and when the fingerprint is matched with a preset fingerprint template, unlocking.
According to an aspect of the present disclosure, there is provided a fingerprint unlocking control apparatus including: the acquisition module is used for acquiring touch operation in the fingerprint sensing area; the determining module is used for determining the contact area between the touch operation and the sensing area according to the touch operation; the triggering module is used for triggering a cover plate lightening signal and identifying the fingerprint in the touch operation when the contact area meets a preset area threshold; and the matching module is used for controlling the electronic equipment to unlock when the fingerprint is matched with a preset fingerprint template.
According to an aspect of the present disclosure, there is provided a computer-readable program medium storing a fingerprint unlock control program, which, when executed by a computer, causes the computer to execute a fingerprint unlock control method according to the above.
According to an aspect of the present disclosure, there is provided a touch screen assembly including: a cover plate; the touch screen is arranged on one side of the cover plate, and a light emitter for projecting the cover plate is embedded in the touch screen; the collimator is arranged on one side, back to the cover plate, of the touch screen and is arranged opposite to the light emitter; a collector arranged on one side of the collimator facing away from the touch screen and used for collecting fingerprints on the cover plate
According to an aspect of the present disclosure, there is provided a mobile terminal including: the casing and the touch screen assembly.
According to the technical scheme, the embodiment of the invention at least has the following advantages and positive effects:
the fingerprint unlocking control method provided by the invention comprises the following steps: acquiring touch operation in a fingerprint sensing area; determining the contact area between the touch operation and the sensing area according to the touch operation; when the contact area meets a preset area threshold, triggering a cover plate lighting signal and identifying the fingerprint in the touch operation; and when the fingerprint is matched with a preset fingerprint template, unlocking. Through the comparison of the contact area and the preset area threshold value, the cover plate is lightened, and the induction area is prevented from being frequently lightened due to the fact that a user touches the cover plate by mistake, so that the energy consumption of the mobile terminal is reduced, and the service life of the mobile terminal is prolonged.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a front view of an electronic product shown according to an exemplary embodiment.
Fig. 2 is an internal structural view of a cover plate of an electronic product according to an exemplary embodiment.
Fig. 3 is a control flow diagram of an electronic product shown in accordance with an example embodiment.
Fig. 4 is a flowchart illustrating a fingerprint unlock control method according to an exemplary embodiment.
FIG. 5 is a detailed flow diagram illustrating an operation of acquiring a touch within a fingerprint sensing area according to an exemplary embodiment.
FIG. 6 is a detailed flow diagram illustrating triggering of a cover plate light up notification according to an example embodiment.
Fig. 7 is a block diagram illustrating a fingerprint unlock control device according to an exemplary embodiment.
FIG. 8 is a hardware diagram illustrating an electronic device according to an example embodiment.
Fig. 9 is a computer-readable storage medium for implementing the fingerprint unlock control method described above according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities.
As shown in fig. 1 to 3, according to an embodiment of the present disclosure, a mobile terminal is provided, which includes a housing and a touch screen assembly mounted on the housing, where the touch screen assembly includes a cover plate 1, a touch screen 2, a collimator 3, and a fingerprint acquirer 4.
The cover plate 1 is made of glass and used for reflecting light rays and pressing fingers of a user.
The outer periphery of the cover plate 1 is connected to a frame made of a metal material and serving as a ground portion of the cover plate 1.
The touch screen 2 is arranged on one side of the cover plate and is arranged opposite to the cover plate 1 to form a touch area.
The touch screen 2 is embedded with a light emitter 21 for projecting the cover plate 1, the emitting end of the light emitter 21 faces the cover plate 1, and the light emitter 21 is glued to the touch screen 2. The light emitter 21 of the touch screen 2 is turned on after receiving the cover plate lighting signal, so that the touch screen 2 lights.
The collimator 3 is arranged on one side, back to the cover plate 1, of the touch screen 2 and is arranged relative to the light emitter 21, the collimator 3 adjusts a light path emitted by the light emitter 21 and projects the light path onto the fingerprint collector 4 regularly, and therefore the fingerprint collector 4 can capture and shoot fingerprint images on the cover plate 1 clearly.
The fingerprint collector 4 is arranged on one side of the collimator 3, which faces away from the touch screen 2, and is used for collecting fingerprints on the cover plate 1.
In addition, the mobile terminal is in a standby state in an initial state, the touch screen 2 is in a screen-off state, when a finger of a user touches the cover plate 1, the touch screen 2 detects a finger touch screen operation, a touch screen track is recorded, a contact area is calculated through the overlapped part of the finger and the cover plate 1, and finger pressing of the finger relative to the cover plate 1 is determined, the finger pressing can be effectively converted into capacitance variation in operation, when the capacitance variation exceeds a preset capacitance variation threshold value, the light emitter 21 projects light to the touch screen 2 and the cover plate 1 and reflects the light to the collimator 3 through the cover plate 1, so that the touch screen 2 is lightened, in addition, the fingerprint collector 4 starts working, collects fingerprints on the finger relative to the cover plate 1, the fingerprints are matched with a preset fingerprint template through the fingerprints, and if the fingerprints are successfully matched with the preset fingerprint template, the mobile terminal is successfully unlocked.
According to one embodiment of the present disclosure, a fingerprint unlock control method is provided. The touch screen 2 is controlled to be lighted up through a fingerprint unlocking control method, and the induction area is prevented from being frequently lighted up due to mistaken touch of a user and the cover plate, so that the energy consumption of the mobile terminal is reduced, and the service life of the mobile terminal is prolonged.
As shown in fig. 4, the fingerprint unlocking control method includes:
step S110, acquiring touch operation in a fingerprint sensing area;
step S120, determining the contact area between the touch operation and the induction area according to the touch operation;
step S130, when the contact area meets a preset area threshold, triggering a cover plate lightening signal and identifying a fingerprint in the touch operation;
and step S140, controlling the electronic equipment to unlock when the fingerprint is matched with a preset fingerprint template.
In some embodiments of the present invention, based on the foregoing scheme, the cover plate is lighted by comparing the contact area with a preset area threshold, and the induction area is prevented from being frequently lighted due to the mistaken contact between the user and the cover plate, so that the energy consumption of the mobile terminal is reduced and the service life of the mobile terminal is prolonged.
These steps are described in detail below.
In step S110, a touch operation in the fingerprint sensing area is acquired.
In the present exemplary embodiment, referring to fig. 1, first, the fingerprint sensing area refers to a shooting area of the fingerprint acquirer 4 relative to the cover plate 1, and the touch operation refers to a path, specifically a track, traced by the finger of the user relative to the fingerprint sensing area.
The controller acquires touch operation in the fingerprint sensing area and records the track of the finger relative to the fingerprint sensing area, and the track does not limit the appearance of the finger.
The track may be designated or not, and this example does not specially limit this;
for example, the finger draws an S-shape on the fingerprint sensing area, and the touch operation corresponds to an S-trace and is received by the controller.
As shown in fig. 5, step S110 may include:
s111, acquiring a first coordinate position of the touch screen position relative to the cover plate;
step S112, acquiring a second coordinate area of the fingerprint sensing area relative to the cover plate;
s113, when the first coordinate position falls into the second coordinate area, determining that the touch screen position is in the fingerprint sensing area;
in step S111, the touch screen position corresponds to a position where a finger of the user touches the cover plate, the controller establishes a position coordinate system according to the cover plate, the width direction of the coordinate system is the X-axis direction, the length direction of the coordinate system is the Y-axis direction, and the position of the touch screen position relative to the coordinate system can be located by establishing the position coordinate system, so as to facilitate position comparison of the touch screen position in the coordinate system.
For example, the touch screen position is marked on (3, 5) of the coordinate system, and then the touch screen position is located on the X-axis 3 and the Y-axis 5 of the coordinate system. The position of the touch screen position relative to the touch screen is effectively and accurately located through the coordinate system, so that further position comparison is facilitated.
In step S112, the fingerprint sensing area is a predicted detection area on the cover plate, and the fingerprint sensing area is not limited to a specific position relative to the coordinate system as a range value.
In step S113, when the first coordinate position falls within the second coordinate area, the touch screen position falls within the fingerprint sensing area, where a coordinate point represented by the touch screen position is in a coordinate range represented by the fingerprint sensing area. Whether the touch screen position falls into the preset fingerprint sensing area or not is obtained visually by comparing the preset fingerprint sensing area on the coordinate system with the touch screen position on the coordinate system, and therefore the recognition efficiency of the touch screen position is improved.
In one embodiment, in step S120, since the touch screen is located in the fingerprint sensing area, a region where the finger of the user is attached to the fingerprint sensing area is a touch region, the touch region is projected onto the fingerprint sensing area and can calculate a contact area of the touch region, and a force acting between the finger of the user and the fingerprint sensing area can be parameterized through the contact area.
Wherein the contact areas are effectively superimposed by the area of the respective regions for further identification.
In one embodiment, as shown in fig. 6, step S130 includes:
step S131, when the contact area meets a preset area threshold, acquiring a capacitance variation;
step S132, when the capacitance variation is larger than a preset capacitance variation threshold, triggering a cover plate lighting signal;
step S133, acquiring a corresponding fingerprint image;
step S134, calculating the fingerprint matching degree of the fingerprint image and a preset fingerprint template;
step S135, if the fingerprint matching degree is larger than a preset matching degree threshold value, determining that the fingerprint image passes through fingerprint identification, and triggering an unlocking signal;
in step S131, a preset area threshold is used as a test reference, and the preset area threshold can be effectively changed according to different environmental parameters.
When area of contact satisfies predetermined area threshold value, this area of contact has reached the condition of converting into the capacitance variation, through the contrast of capacitance variation, knows user's finger effectively and responds to regional pressing force and pressing area to the fingerprint to be convenient for further contrast.
In step S132, when the capacitance variation is greater than the preset capacitance variation threshold, the cover plate lighting signal is triggered, and the cover plate lighting signal is effectively triggered by comparing the capacitance variation with the preset capacitance variation threshold, so as to drive the cover plate to light, thereby facilitating the collection of the finger fingerprint information.
Through the comparison of the contact area and the preset area threshold value, the cover plate is lightened, and the induction area is prevented from being frequently lightened due to the fact that a user touches the cover plate by mistake, so that the energy consumption of the mobile terminal is reduced, and the service life of the mobile terminal is prolonged.
In step S133, the fingerprint of the finger is highlighted due to the lighting of the cover plate, and the fingerprint acquirer 4 is over against the fingerprint sensing area and captures the fingerprint image of the finger, wherein the fingerprint acquirer 4 performs adaptive adjustment according to the brightness of the cover plate.
The specific fingerprint lines of the fingerprint image are unique, and the distributed fingerprint lines are different.
In step S134, the fingerprint matching degree between the fingerprint image and the preset fingerprint template is calculated by comparing the fingerprint image with the preset fingerprint template, so as to facilitate determining the similarity between the fingerprint image and the preset fingerprint template. Whether the fingerprint image is consistent with the preset fingerprint template or not can be determined through the similarity, and therefore whether the user is a corresponding owner or not is judged. The preset fingerprint templates can be preset in a plurality of numbers, so that the mobile terminal allows a plurality of people to open.
In step S135, the fingerprint matching degree is compared with the preset matching degree threshold, so as to effectively realize fast fingerprint identification within the preset range.
For example, the preset matching degree threshold is 90%, when the fingerprint matching degree is 93%, the fingerprint matching degree is greater than the preset matching degree threshold, it is determined that the fingerprint image passes through fingerprint identification, and the controller triggers an unlocking signal to realize fingerprint unlocking.
In addition, step S136 is included after step S134, if the fingerprint matching degree is smaller than the preset matching degree threshold, the screen locking state is maintained, and a fingerprint error event is recorded;
step S137, acquiring the continuous occurrence times of the condition that the fingerprint matching degree is smaller than the preset matching degree threshold value in a preset time length;
and step S138, if the times are larger than a preset time threshold value, triggering a cover plate closing signal and a fingerprint module closing signal.
In step S136, the fingerprint matching degree is smaller than the preset matching degree threshold, and the fingerprint is located as an error fingerprint and recorded as a fingerprint error event, wherein in the fingerprint error event, the cover board keeps the screen locking state.
In step S137, the number of consecutive fingerprint error events is recorded, ensuring that the user has consecutive error events.
In step S138, when the number of consecutive fingerprint error events is greater than the preset number threshold, the controller determines that the fingerprint does not belong to the preset fingerprint template, and then triggers a cover closing signal and a fingerprint module closing signal, thereby reducing the energy consumption of the mobile terminal.
As shown in fig. 7, in one embodiment, the fingerprint unlock control device 200 further includes:
an obtaining module 210, configured to obtain a touch operation in a fingerprint sensing area;
a determining module 220, configured to determine, according to the touch operation, a contact area between the touch operation and the sensing area;
the triggering module 230 is configured to trigger a cover plate lighting signal and identify a fingerprint in the touch operation when the contact area meets a preset area threshold;
the matching module 240 is used for controlling the electronic equipment to unlock when the fingerprint is matched with a preset fingerprint template;
the mobile terminal 40 according to this embodiment of the present invention is described below with reference to fig. 6. The mobile terminal 40 shown in fig. 4 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present invention.
As shown in fig. 8, the mobile terminal 40 is embodied in the form of a general purpose computing device. The components of the mobile terminal 40 may include, but are not limited to: the at least one processing unit 41, the at least one memory unit 42, and a bus 43 connecting the various system components (including the memory unit 42 and the processing unit 41).
Wherein the storage unit stores program code executable by the processing unit 41 to cause the processing unit 41 to perform the steps according to various exemplary embodiments of the present invention described in the section "example methods" above in this specification.
The storage unit 42 may include readable media in the form of volatile memory units, such as a random access memory unit (RAM)421 and/or a cache memory unit 422, and may further include a read only memory unit (ROM) 423.
The storage unit 42 may also include a program/utility 424 having a set (at least one) of program modules 425, such program modules 425 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which, or some combination thereof, may comprise an implementation of a network environment.
The mobile terminal 40 may also communicate with one or more external devices (e.g., keyboard, pointing device, bluetooth device, etc.), one or more devices that enable a user to interact with the mobile terminal 40, and/or any device (e.g., router, modem, etc.) that enables the mobile terminal 40 to communicate with one or more other computing devices. Such communication may be through an input/output (I/O) interface 45. Also, the mobile terminal 40 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN) and/or a public network, such as the Internet) via the network adapter 46. As shown, the network adapter 46 communicates with the other modules of the mobile terminal 40 via the bus 43. It should be appreciated that although not shown, other hardware and/or software modules may be used in conjunction with the mobile terminal 40, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, among others.
Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which may be a personal computer, a server, a terminal device, or a network device, etc.) to execute the method according to the embodiments of the present disclosure.
There is also provided, in accordance with an embodiment of the present disclosure, a computer-readable storage medium having stored thereon a program product capable of implementing the above-described method of the present specification. In some possible embodiments, aspects of the invention may also be implemented in the form of a program product comprising program code means for causing a terminal device to carry out the steps according to various exemplary embodiments of the invention described in the above section "exemplary methods" of the present description, when said program product is run on the terminal device.
Referring to fig. 9, a program product 50 for implementing the above method according to an embodiment of the present invention is described, which may employ a portable compact disc read only memory (CD-ROM) and include program code, and may be run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited in this regard and, in the present document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
A computer readable signal medium may include a propagated data signal with readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., through the internet using an internet service provider).
Furthermore, the above-described figures are merely schematic illustrations of processes involved in methods according to exemplary embodiments of the invention, and are not intended to be limiting. It will be readily understood that the processes shown in the above figures are not intended to indicate or limit the chronological order of the processes. In addition, it is also readily understood that these processes may be performed synchronously or asynchronously, e.g., in multiple modules.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (10)
1. A fingerprint unlocking control method is characterized by comprising the following steps:
acquiring touch operation in a fingerprint sensing area;
determining the contact area between the touch operation and the sensing area according to the touch operation;
when the contact area meets a preset area threshold, triggering a cover plate lighting signal and identifying the fingerprint in the touch operation;
and when the fingerprint is matched with a preset fingerprint template, controlling the electronic equipment to unlock.
2. The fingerprint unlocking control method according to claim 1, wherein the triggering a cover plate light-up signal and identifying the fingerprint in the touch operation when the contact area meets a preset area threshold value comprises:
when the contact area meets a preset area threshold, acquiring the capacitance variation;
and when the capacitance variation is larger than a preset capacitance variation threshold, triggering a cover plate to light up.
3. The fingerprint unlocking control method according to claim 2, wherein after triggering the cover plate lighting signal when the capacitance variation is larger than a preset capacitance variation threshold, the method further comprises:
acquiring a corresponding fingerprint image;
calculating the fingerprint matching degree of the fingerprint image and a preset fingerprint template;
and if the fingerprint matching degree is greater than a preset matching degree threshold value, determining that the fingerprint image passes through fingerprint identification, and triggering an unlocking signal.
4. The fingerprint unlocking control method according to claim 3, wherein after calculating the fingerprint matching degree between the fingerprint image and the fingerprint template, the method further comprises:
if the fingerprint matching degree is smaller than the preset matching degree threshold value, the screen locking state is kept, and a fingerprint error event is recorded.
5. The fingerprint unlock control method of claim 4, wherein after the recording of the fingerprint error event, further comprising:
acquiring the continuous occurrence frequency of the condition that the fingerprint matching degree is smaller than the preset matching degree threshold value within a preset time length;
and if the times are greater than a preset time threshold value, triggering a cover plate closing signal and a fingerprint module closing signal.
6. The fingerprint unlock control method according to claim 1, wherein the acquiring of the touch operation in the fingerprint sensing area further comprises:
acquiring a first coordinate position of a touch screen position relative to a cover plate;
acquiring a second coordinate area of the fingerprint induction area relative to the cover plate;
and when the first coordinate position falls into the second coordinate area, determining that the touch screen position is in the fingerprint sensing area.
7. A fingerprint unlock control device, comprising:
the acquisition module is used for acquiring touch operation in the fingerprint sensing area;
the determining module is used for determining the contact area between the touch operation and the sensing area according to the touch operation;
the triggering module is used for triggering a cover plate lightening signal and identifying the fingerprint in the touch operation when the contact area meets a preset area threshold;
and the matching module is used for controlling the electronic equipment to unlock when the fingerprint is matched with a preset fingerprint template.
8. A computer-readable program medium characterized by storing a fingerprint unlock control program that, when executed by a computer, causes the computer to execute the fingerprint unlock control method according to any one of claims 1 to 5.
9. A touch screen assembly, comprising:
a cover plate;
the touch screen is arranged on one side of the cover plate, and a light emitter for projecting the cover plate is embedded in the touch screen;
the collimator is arranged on one side, back to the cover plate, of the touch screen and is arranged opposite to the light emitter;
the collector is arranged on one side, back to the touch screen, of the collimator and used for collecting fingerprints on the cover plate.
10. A mobile terminal, comprising: a housing and a touch screen assembly according to claim 9 mounted on the housing.
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| CN202010260944.8A CN111552399A (en) | 2020-04-03 | 2020-04-03 | Fingerprint unlocking control method and device and mobile terminal |
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| CN202010260944.8A CN111552399A (en) | 2020-04-03 | 2020-04-03 | Fingerprint unlocking control method and device and mobile terminal |
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