CN108681716B - Fingerprint unlocking method and device - Google Patents
Fingerprint unlocking method and device Download PDFInfo
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- CN108681716B CN108681716B CN201810481332.4A CN201810481332A CN108681716B CN 108681716 B CN108681716 B CN 108681716B CN 201810481332 A CN201810481332 A CN 201810481332A CN 108681716 B CN108681716 B CN 108681716B
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- 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
- G06V40/1324—Sensors therefor by using geometrical optics, e.g. using prisms
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- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/4401—Bootstrapping
- G06F9/4418—Suspend and resume; Hibernate and awake
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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
- G06V40/1347—Preprocessing; Feature extraction
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Abstract
The disclosure provides a fingerprint unlocking method and device, and belongs to the technical field of terminals. The method comprises the following steps: when the terminal is in a waiting unlocking state, if the fingerprint pressing on the touch screen is detected to be effective fingerprint pressing, a system of the terminal is awakened; when the pressing force of fingerprint pressing is detected to reach a preset threshold value, lightening the touch screen; acquiring fingerprint characteristic information of fingerprint pressing; and when the fingerprint characteristic information is successfully matched with the fingerprint template, unlocking the terminal. The terminal is in a waiting unlocking state, the system is awakened when effective fingerprint pressing on the touch screen is detected, the touch screen is lightened only when the pressing force degree is larger than a preset threshold value, then fingerprint characteristic information of the pressed fingerprint is obtained, and when the obtained fingerprint characteristic information is successfully matched with a fingerprint template, the terminal is unlocked, so that the reasonable and effective fingerprint unlocking method based on fingerprint identification in the screen is provided.
Description
Technical Field
The disclosure relates to the technical field of terminals, in particular to a fingerprint unlocking method and device.
Background
With the development of scientific technology, the combination of the full-screen and front-side fingerprint identification of a mobile phone becomes possible due to the self-luminous characteristics of the optical fingerprint sensing technology and the OLED (Organic Light emitting diode) screen, that is, fingerprint identification (also called intra-screen fingerprint identification) is performed in the screen.
At present, the in-screen fingerprint identification technology is still in a research and optimization stage and is not applied to mobile terminals such as issued mobile phones. Correspondingly, the fingerprint unlocking process based on the fingerprint identification in the screen is also in an exploration stage, and how to realize reasonable and effective fingerprint unlocking based on the fingerprint identification in the screen is a problem to be solved.
Disclosure of Invention
In order to overcome the problems in the related art, the present disclosure provides a fingerprint unlocking method and device, in which the technical scheme is as follows:
according to a first aspect of the embodiments of the present disclosure, there is provided a fingerprint unlocking method, including:
when the terminal is in a waiting unlocking state, if the fingerprint pressing on the touch screen is detected to be effective fingerprint pressing, awakening a system of the terminal;
when the pressing force degree of the fingerprint pressing is detected to reach a preset threshold value, lightening the touch screen;
acquiring fingerprint characteristic information of the fingerprint pressing;
and when the fingerprint characteristic information is successfully matched with the fingerprint template, unlocking the terminal.
In a possible implementation manner, before waking up the terminal system, the method further includes:
determining a fingerprint identification area of the touch screen;
when the location of the fingerprint press is within the fingerprint identification area, determining that the fingerprint press is a valid fingerprint press.
In one possible implementation manner, the lighting the touch screen includes:
determining the current screen locking display state of the touch screen, wherein the screen locking display state comprises a message screen display state and a screen off state;
when the touch screen is in the screen displaying state, switching the touch screen from the screen displaying state to a screen lightening state;
when the touch screen is in the screen-off state, the touch screen is switched from the screen-off state to the screen-on state.
In one possible implementation manner, after the illuminating the touch screen, the method further includes:
acquiring a preset screen locking interface;
and displaying the screen locking interface.
In one possible implementation, the method further includes:
when the pressing force degree of the fingerprint pressing is detected not to reach the preset threshold value, if effective fingerprint pressing on the touch screen is detected within a preset time interval and the pressing force degree reaches the preset threshold value, lighting the touch screen and subsequent steps are executed;
and if the effective fingerprint pressing on the touch screen is not detected within the preset time interval, controlling the terminal to enter the unlocking waiting state.
In one possible implementation, after the acquiring the fingerprint feature information of the fingerprint pressing, the method further includes:
when the fingerprint feature information fails to be matched with the fingerprint template, if effective fingerprint pressing on the touch screen is detected within a preset time, acquiring the pressed fingerprint feature information and performing the subsequent steps;
and if the effective fingerprint pressing on the touch screen is not detected within the preset time, controlling the terminal to enter the unlocking waiting state.
According to a second aspect of the embodiments of the present disclosure, there is provided a fingerprint unlocking device including:
the terminal comprises a wake-up module and a control module, wherein the wake-up module is used for waking up a system of the terminal if detecting that fingerprint pressing on a touch screen is effective when the terminal is in a waiting unlocking state;
the screen display control module is used for lightening the touch screen when detecting that the pressing force degree of the fingerprint pressing reaches a preset threshold value;
the fingerprint acquisition module is used for acquiring fingerprint characteristic information of the fingerprint pressing;
and the unlocking module is used for unlocking the terminal when the fingerprint characteristic information is successfully matched with the fingerprint template.
In one possible implementation, the apparatus further includes:
the first determining module is used for determining a fingerprint identification area of the touch screen;
a second determination module to determine that the fingerprint press is a valid fingerprint press when the location of the fingerprint press is within the fingerprint identification area.
In one possible implementation, the on-screen control module is configured to: determining the current screen locking display state of the touch screen, wherein the screen locking display state comprises a message screen display state and a screen off state; when the touch screen is in the screen displaying state, switching the touch screen from the screen displaying state to a screen lightening state; when the touch screen is in the screen-off state, the touch screen is switched from the screen-off state to the screen-on state.
In one possible implementation, the apparatus further includes:
the interface acquisition module is used for acquiring a preset screen locking interface;
and the display module is used for displaying the screen locking interface.
In one possible implementation, the apparatus further includes:
the first fingerprint detection module is used for executing the steps of lightening the touch screen and the subsequent steps if effective fingerprint pressing on the touch screen is detected within a preset time interval and the pressing force reaches the preset threshold value when the pressing force of the fingerprint pressing is detected not to reach the preset threshold value; and if the effective fingerprint pressing on the touch screen is not detected within the preset time interval, controlling the terminal to enter the unlocking waiting state.
In one possible implementation, the apparatus further includes:
the second fingerprint detection module is used for executing the acquisition of the pressed fingerprint characteristic information and subsequent steps thereof if the effective fingerprint pressing on the touch screen is detected within the preset time when the fingerprint characteristic information is unsuccessfully matched with the fingerprint template; and if the effective fingerprint pressing on the touch screen is not detected within the preset time, controlling the terminal to enter the unlocking waiting state.
According to a third aspect of the embodiments of the present disclosure, there is provided a fingerprint unlocking device including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to: when the terminal is in a waiting unlocking state, if the fingerprint pressing on the touch screen is detected to be effective fingerprint pressing, awakening a system of the terminal; when the pressing force degree of the fingerprint pressing is detected to reach a preset threshold value, lightening the touch screen; acquiring fingerprint characteristic information of the fingerprint pressing; and when the fingerprint characteristic information is successfully matched with the fingerprint template, unlocking the terminal.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: the terminal is in a waiting unlocking state, the system is awakened when effective fingerprint pressing on the touch screen is detected, the touch screen is lightened when the pressing force degree is larger than a preset threshold value, then fingerprint characteristic information of the pressed fingerprint is obtained, and when the obtained fingerprint characteristic information is successfully matched with the fingerprint template, the terminal is unlocked, so that the reasonable and effective fingerprint unlocking method based on fingerprint identification in the screen is provided.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a flowchart illustrating a fingerprint unlocking method according to an exemplary embodiment.
FIG. 2 is a flowchart illustrating a fingerprint unlocking method according to an exemplary embodiment.
Fig. 3 is a block diagram illustrating a fingerprint unlocking device according to an exemplary embodiment.
Fig. 4 is a block diagram illustrating a fingerprint unlocking device according to an exemplary embodiment.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.
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 implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Fig. 1 is a flowchart illustrating a fingerprint unlocking method according to an exemplary embodiment, where the fingerprint unlocking method is used in a terminal, as shown in fig. 1, and includes the following steps:
in step 101, when the terminal is in a waiting unlocking state, if it is detected that the fingerprint pressing on the touch screen is a valid fingerprint pressing, a system of the terminal is awakened.
In step 102, when it is detected that the pressing force of the fingerprint pressing reaches a preset threshold, the touch screen is turned on.
In step 103, fingerprint characteristic information of the fingerprint press is acquired.
In step 104, when the fingerprint feature information is successfully matched with the fingerprint template, the terminal is unlocked.
According to the method provided by the embodiment of the disclosure, when the terminal is in a waiting unlocking state, the system is awakened when effective fingerprint pressing on the touch screen is detected, the touch screen is lightened when the pressing force degree is greater than a preset threshold value, then fingerprint characteristic information of the pressed fingerprint is acquired, and when the acquired fingerprint characteristic information is successfully matched with the fingerprint template, the terminal is unlocked, so that a reasonable and effective fingerprint unlocking method based on fingerprint identification in the screen is provided.
In a possible implementation manner, before waking up the terminal system, the method further includes:
determining a fingerprint identification area of the touch screen;
when the location of the fingerprint press is within the fingerprint identification area, the fingerprint press is determined to be a valid fingerprint press.
In one possible implementation, the illuminating the touch screen includes:
determining the current screen locking display state of the touch screen, wherein the screen locking display state comprises a message screen display state and a screen off state;
when the touch screen is in the message screen display state, switching the touch screen from the message screen display state to a bright screen state;
when the touch screen is in the screen-off state, the touch screen is switched from the screen-off state to the screen-on state.
In a possible implementation manner, after the illuminating the touch screen, the method further includes:
acquiring a preset screen locking interface;
and displaying the screen locking interface.
In one possible implementation, the method further includes:
when the pressing force degree of the fingerprint pressing is detected not to reach the preset threshold value, if effective fingerprint pressing on the touch screen is detected within a preset time interval and the pressing force degree reaches the preset threshold value, lighting the touch screen and subsequent steps are executed;
and if the effective fingerprint pressing on the touch screen is not detected within the preset time interval, controlling the terminal to enter the waiting unlocking state.
In one possible implementation, after the obtaining the fingerprint feature information of the fingerprint pressing, the method further includes:
when the fingerprint feature information fails to be matched with the fingerprint template, if effective fingerprint pressing on the touch screen is detected within a preset time, acquiring the pressed fingerprint feature information and performing the subsequent steps;
and if the effective fingerprint pressing on the touch screen is not detected within the preset time, controlling the terminal to enter the waiting unlocking state.
All the above optional technical solutions may be combined arbitrarily to form the optional embodiments of the present disclosure, and are not described herein again.
Fig. 2 is a flowchart illustrating a fingerprint unlocking method according to an exemplary embodiment, and the method is used in a terminal, as shown in fig. 2, and includes the following steps:
in step 201, when the terminal is in a waiting unlocking state, if it is detected that the fingerprint pressing on the touch screen is valid, a system of the terminal is awakened.
In this embodiment, before waking up the terminal system, the terminal is in a wait unlocking state, and the wait unlocking state is characterized in that: the terminal is in dormancy, lock screen state, and the touch-control screen is in the state of waiting for the finger to press all the time, also can understand that the touch-control screen is in the ready state of fingerprint detection.
The touch screen of the terminal may have a self-luminous property, for example, the touch screen may be a display screen made of a material with a luminous property, such as an OLED display screen or a Micro LED display screen, which is not limited in this embodiment. Of course, the terminal touch screen may not have self-light emitting characteristics, for example, the touch screen may be an LCD (liquid crystal Display) screen module with a backlight.
When the touch screen is waiting for the finger to press the state, in case the terminal detects that the fingerprint to the touch screen is pressed, then can judge whether this fingerprint is pressed for effective fingerprint and press, judge whether the fingerprint that detects is pressed for the process that effective fingerprint pressed and do: determining a fingerprint identification area of a touch screen; and when the position pressed by the fingerprint is in the fingerprint identification area, determining that the fingerprint is pressed as effective fingerprint, and executing the step of awakening the terminal system.
The fingerprint pressing refers to pressing caused by touching of fingers or toes, and pressing of the touch screen by an inanimate object such as a key, a bank card, clothing and the like does not belong to the fingerprint pressing category of the embodiment.
The fingerprint identification area may be a partial area of the touch screen or an entire area of the touch screen. In one embodiment, a fingerprint sensor with a fingerprint identification function is arranged below a touch screen; in another embodiment, when the touch screen has a self-luminous characteristic, a fingerprint sensor is added in a light-emitting layer of the touch screen, and a fingerprint identification pixel is added beside each RGB pixel of the touch screen, so that the whole touch screen has a fingerprint identification function. During the concrete implementation, can be according to fingerprint sensor's position, carry out the regional division of optional fingerprint identification with whole touch-control screen, for example, divide into the touch-control screen from last three optional fingerprint identification regions down, in, the lower, the user can set up the terminal setting interface with one or more optional fingerprint identification regions and set up to final fingerprint identification region, when all optional fingerprint identification regions (as in the upper, middle and lower three optional fingerprint identification regions) all selected, whole touch-control screen is final fingerprint identification region promptly. It should be noted that, the optional fingerprint identification area division manner may further include: the left, middle and right, the word "tian" and the word "jing" or a plurality of irregular-shaped partitions, etc., which are not limited in this embodiment.
The terminal system is awakened by switching the terminal from a dormant state to an awakening state, and reactivating the process stopped in the dormant state by the terminal to run so as to enter the awakening state.
In step 202, it is detected whether the pressing force degree of the fingerprint pressing reaches a preset threshold, step 203 is executed when the pressing force degree reaches the preset threshold, and step 204 is executed when the pressing force degree does not reach the preset threshold.
Because the user can press with a certain force when really wanting to unlock the fingerprint, in order to improve the validity and accuracy of fingerprint detection, the terminal can judge whether the user needs to unlock the fingerprint according to the pressing force degree of the fingerprint pressing, that is, whether the pressing force degree of the fingerprint pressing reaches a preset threshold value, and if the pressing force degree of the fingerprint pressing reaches the preset threshold value, the user is determined to continue to unlock the fingerprint and step 203 is executed; otherwise, it is determined that the user does not need to proceed with fingerprint unlocking and step 204 is performed.
The preset threshold may be set in the terminal system when the terminal system leaves a factory, or may be modified when the terminal system is upgraded, for example, by increasing the value of the preset threshold within a certain range to improve the robustness of fingerprint detection, or by decreasing the value of the preset threshold within a certain range to improve the sensitivity of fingerprint detection. Of course, the preset threshold may also be adjusted according to the fingerprint characteristics of the user, for example, for a user with a shallow fingerprint (i.e., a fingerprint with an unobvious protrusion), the user needs to obtain a more accurate fingerprint according to a larger pressure, and for this situation, the value of the preset threshold may be increased within a certain range.
In step 203, when it is detected that the pressing force of the fingerprint pressing reaches a preset threshold, the touch screen is lighted.
In this embodiment, the process of lighting the touch screen includes: determining the current screen locking display state of the touch screen, wherein the screen locking display state comprises a message screen display state and a screen off state; when the touch screen is in the screen displaying state, switching the touch screen from the screen displaying state to a screen lightening state; when the touch screen is in the screen-off state, the touch screen is switched from the screen-off state to the screen-on state. The embodiment provides a process for fingerprint unlocking in different lock screen display states.
In an implementation manner, when the touch screen has a self-luminous characteristic, the physical process of the terminal lighting the touch screen is as follows: the terminal applies voltage to the touch screen based on the self-luminous characteristic of the touch screen, so that current is generated inside the touch screen, photons are excited, and the touch screen emits light. The larger the current is, the higher the brightness of the touch screen is. The touch screen comprises an organic film formed by a plurality of different types of organic molecules, and the different types of organic molecules can excite different colors of light, so that the touch screen can display a colorful picture. In this embodiment, when detecting that the pressing force of the fingerprint pressing reaches the preset threshold, the terminal applies a voltage to the touch screen to excite the touch screen to emit light, so as to light the touch screen. In another implementation manner, when the touch screen does not have the self-luminous property, the physical process of the terminal lighting the touch screen is as follows: when the terminal detects that the pressing force degree of fingerprint pressing reaches the preset threshold value, the terminal turns on the backlight by powering on the backlight of the touch screen, and the screen is lightened.
The terminal can also control the touch screen to emit light locally, namely, screen display is stopped. In an information screen Display (AOD, english abbreviation Always on Display) state, a local area of the touch screen displays preset information, which may be time information or notification information. In the screen-off state, the touch screen is in a full-off state and does not display any information. The user can set the lock screen display state of the terminal through the setting interface; the terminal can also be according to self electric quantity, and the nimble switching between the screen display state of breathing out and the state of going out the screen, for example, when the electric quantity is less than and predetermines the percentage, if the lock screen display state was the screen display state of breathing out this moment, then switched to the state of going out the screen to reduce the electric quantity consumption. Correspondingly, when the power of the terminal is higher than the preset percentage, if the screen locking display state is the screen off state at the moment, the screen locking display state is switched to the message screen display state.
In step 204, when the pressing force of the fingerprint pressing is detected to be lower than the preset threshold, if the effective fingerprint pressing on the touch screen is detected within the preset time interval, continuing to execute step 202; and if the effective fingerprint pressing on the touch screen is not detected within the preset time interval, the control terminal enters a waiting unlocking state.
The method for determining valid fingerprint pressing is the same as the method for determining valid fingerprint pressing in step 201, and is not described herein again.
The preset time interval is preset or modified by the terminal, which is not limited in this embodiment. If the effective fingerprint pressing on the touch screen is detected within the preset time interval, it is determined that the finger of the user is not lifted, namely the user still performs fingerprint unlocking, at the moment, the terminal can perform effective prompt in the fingerprint identification area of the touch screen, and the effective prompt is used for indicating the user to increase the pressing pressure. If effective fingerprint pressing on the touch screen is not detected within a preset time interval, it is determined that the finger of the user is lifted, namely the user does not continue to unlock the fingerprint, and the terminal enters a waiting unlocking state. When the terminal enters a waiting unlocking state, the touch screen enters a screen turning-off display state or a screen turning-off state from a screen lighting state, the touch screen is in a waiting finger pressing state, and at the moment, if the terminal detects that an effective fingerprint is pressed, step 201 is executed.
It should be noted that in this step, within a preset time interval, the terminal touch screen continues to be in the bright screen state after step 203 is executed.
In step 205, a preset screen locking interface is obtained, and the screen locking interface is displayed.
The screen locking interface is used for prompting that the current terminal is in a screen locking state, and the style of the screen locking interface can be set by a user through the terminal.
In this embodiment, the terminal may display the unlocking indication information in the lock screen interface according to the position pressed by the fingerprint, where the unlocking indication information is used to indicate that the terminal is currently unlocking, and the unlocking indication information may be a text, a picture, an animation, or the like, for example, by using the position pressed by the fingerprint as a center, a dynamic effect of fingerprint scanning is displayed in the unlocking interface.
In step 206, fingerprint characteristic information of the fingerprint press is acquired.
In this embodiment, the process of acquiring fingerprint feature information of a fingerprint press includes: the terminal captures a fingerprint image pressed by a fingerprint through the fingerprint sensor, and fingerprint characteristic information is extracted according to the fingerprint image.
It should be noted that, in the embodiment, when the touch screen has the self-luminous characteristic, the terminal may implement the in-screen fingerprint identification by using the self-luminous characteristic of the touch screen and the fingerprint sensor disposed below the screen. When the touch screen does not have the self-luminous characteristic, the terminal can realize the fingerprint identification in the screen through the backlight of the touch screen and the fingerprint sensor arranged below the screen, and the specific mode of the fingerprint identification in the screen is not limited in the embodiment.
Wherein, the process that the terminal snatchs the fingerprint image that the fingerprint pressed through fingerprint sensor can be: after the terminal touch screen is lightened, the light source irradiates the finger fingerprint, and the protruded lines and the sunken lines on the fingerprint are respectively subjected to diffuse reflection and total reflection to form a black and white fingerprint image on the side of the fingerprint sensor.
The fingerprint characteristic information comprises spiral information of the fingerprint and inflection point information of the grains. The spiral information is used to indicate the spiral shape of the fingerprint, the width of the grain, the relative position of the center of the spiral and the entire grain, etc. The inflection point information comprises information such as the relative position of the inflection point relative to the whole grain, the inflection point direction, the bifurcation number and the like. In the implementation process, the spiral information and the inflection point information of the lines of the terminal fingerprint image are analyzed to obtain fingerprint characteristic information.
In step 207, the terminal matches the fingerprint feature information with a pre-stored fingerprint template, and if the matching is successful, performs step 208, and if the matching is unsuccessful, performs step 209.
In this embodiment, when the terminal opened the fingerprint identification function, the user need carry out the fingerprint and type, and at the in-process of fingerprint type, the terminal shows fingerprint collection interface, and this fingerprint collection interface instruction has the fingerprint collection region, and the user can put into the fingerprint collection region with the finger and carry out the fingerprint type. In the fingerprint input process, the terminal collects a plurality of effective fingerprints which are preset, the collected effective fingerprints are subjected to feature extraction, a collected fingerprint feature information set is obtained, and the fingerprint feature information set is stored as a fingerprint template.
The preset number of times may be preset by the terminal, for example, the preset number is 6 times, 7 times, 8 times, 9 times, 10 times, and the like, which is not limited in this embodiment.
Wherein, in order to make the fingerprint template contain complete user fingerprint information as far as possible, the terminal can carry out validity detection to the fingerprint of gathering at every turn, and when the fingerprint information volume that the fingerprint of gathering contains was less than and predetermines the information volume, abandons the fingerprint of this collection. While discarding the captured fingerprint, a prompt for entry of the fingerprint such as "cover finger on screen as much as possible" may be made at the fingerprint capture interface.
The terminal matches the acquired fingerprint characteristic information with the fingerprint template, and the matching process can be as follows: comparing the acquired fingerprint characteristic information with a fingerprint characteristic information set indicated by a fingerprint template, determining that the fingerprint characteristic information is successfully matched with the fingerprint template when the similarity between the fingerprint characteristic information and the fingerprint characteristic information set exceeds a preset proportion, and executing step 208; when the similarity between the fingerprint feature information and the fingerprint feature information set does not exceed the preset ratio, it is determined that the matching between the fingerprint feature information and the fingerprint template fails, and step 209 is performed.
In step 208, when the fingerprint feature information is successfully matched with the fingerprint template, the terminal is unlocked.
In this embodiment, the display modes of the terminal interface after unlocking the terminal include the following two modes: in the first mode, a home interface of the terminal is displayed; and in the second mode, an interface displayed during screen locking is displayed.
In step 209, when the matching of the fingerprint feature information and the fingerprint template fails, if a valid fingerprint pressing on the touch screen is detected within a preset time period, continuing to execute step 206 and subsequent steps; and if the effective fingerprint pressing on the touch screen is not detected within the preset time, the control terminal enters a waiting unlocking state.
The method for determining valid fingerprint pressing is the same as the method for determining valid fingerprint pressing in step 201, and is not described herein again.
The preset duration is preset or modified by the terminal, which is not limited in this embodiment.
In this embodiment, if a valid fingerprint pressing is detected within a preset time period, it is determined that the finger of the user is not lifted, that is, the user still performs fingerprint unlocking, at this time, the step of obtaining the fingerprint feature information of the fingerprint pressing is continuously performed, and this time of obtaining the fingerprint feature information may be regarded as fingerprint feature information obtained for the second time in the process of fingerprint unlocking once). It should be noted that, in the process of once fingerprint unlocking, the terminal may use the fingerprint feature information acquired many times for fingerprint unlocking, that is, match the fingerprint feature information acquired many times with the fingerprint template, so as to improve the accuracy of fingerprint identification. And in the fingerprint characteristic information acquired for multiple times, the time interval between two adjacent times does not exceed the preset time length.
If the effective fingerprint pressing is not detected within the preset time length, the finger of the user is determined to be lifted, namely the user does not continue to unlock the fingerprint, and the terminal enters a waiting unlocking state. When the terminal enters a waiting unlocking state, the touch screen enters a screen turning-off display state or a screen turning-off state from a screen lighting state, the touch screen is in a waiting finger pressing state, and at the moment, if the terminal detects that an effective fingerprint is pressed, step 201 is executed.
According to the method provided by the embodiment of the disclosure, when the terminal is in a waiting unlocking state, the system is awakened when effective fingerprint pressing on the touch screen is detected, the touch screen is lightened when the pressing force degree is greater than a preset threshold value, then fingerprint characteristic information of the pressed fingerprint is acquired, and when the acquired fingerprint characteristic information is successfully matched with the fingerprint template, the terminal is unlocked, so that a reasonable and effective fingerprint unlocking method based on fingerprint identification in the screen is provided.
Fig. 3 is a block diagram illustrating a fingerprint unlocking device according to an exemplary embodiment. Referring to fig. 3, the apparatus includes a wake-up module 301, an on-screen control module 302, a fingerprint acquisition module 303, and an unlock module 304.
The wake-up module 301 is connected to the screen display control module 302, and configured to wake up a system of the terminal if it is detected that a fingerprint pressing on the touch screen is an effective fingerprint pressing when the terminal is in a waiting unlocking state; the screen display control module 302 is connected with the fingerprint acquisition module 303 and is used for lighting the touch screen when detecting that the pressing force degree of the fingerprint pressing reaches a preset threshold value; the fingerprint acquisition module 303 is connected to the unlocking module 304, and is configured to acquire fingerprint feature information of the fingerprint pressing; and the unlocking module 304 is used for unlocking the terminal when the fingerprint characteristic information is successfully matched with the fingerprint template.
In one possible implementation, the apparatus further includes:
the first determining module is used for determining a fingerprint identification area of the touch screen;
a second determination module to determine the fingerprint press as a valid fingerprint press when the location of the fingerprint press is within the fingerprint identification area.
In one possible implementation, the on-screen control module is configured to: determining the current screen locking display state of the touch screen, wherein the screen locking display state comprises a message screen display state and a screen off state; when the touch screen is in the message screen display state, switching the touch screen from the message screen display state to a bright screen state; when the touch screen is in the screen-off state, the touch screen is switched from the screen-off state to the screen-on state.
In one possible implementation, the apparatus further includes:
the interface acquisition module is used for acquiring a preset screen locking interface;
and the display module is used for displaying the screen locking interface.
In one possible implementation, the apparatus further includes:
the first fingerprint detection module is used for executing the steps of lightening the touch screen and the subsequent steps if effective fingerprint pressing on the touch screen is detected within a preset time interval and the pressing force reaches the preset threshold when the pressing force of the fingerprint pressing is detected not to reach the preset threshold; and if the effective fingerprint pressing on the touch screen is not detected within the preset time interval, controlling the terminal to enter the waiting unlocking state.
In one possible implementation, the apparatus further includes:
the second fingerprint detection module is used for executing the acquisition of the pressed fingerprint characteristic information and subsequent steps thereof if the effective fingerprint pressing on the touch screen is detected within the preset time length when the fingerprint characteristic information fails to be matched with the fingerprint template; and if the effective fingerprint pressing on the touch screen is not detected within the preset time, controlling the terminal to enter the waiting unlocking state.
According to the device provided by the embodiment of the disclosure, when the terminal is in a waiting unlocking state, the system is awakened when effective fingerprint pressing on the touch screen is detected, the touch screen is lightened when the pressing force degree is greater than a preset threshold value, then fingerprint characteristic information of the pressed fingerprint is acquired, and when the acquired fingerprint characteristic information is successfully matched with the fingerprint template, the terminal is unlocked, so that a reasonable and effective fingerprint unlocking method based on fingerprint identification in the screen is provided.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
Fig. 4 is a block diagram illustrating a fingerprint unlocking device according to an exemplary embodiment. For example, the apparatus 400 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.
Referring to fig. 4, the apparatus 400 may include one or more of the following components: processing component 402, memory 404, power component 406, multimedia component 408, audio component 410, input/output (I/O) interface 412, sensor component 414, and communication component 416.
The processing component 402 generally controls overall operation of the apparatus 400, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 402 may include one or more processors 420 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 402 can include one or more modules that facilitate interaction between the processing component 402 and other components. For example, the processing component 402 can include a multimedia module to facilitate interaction between the multimedia component 408 and the processing component 402.
The memory 404 is configured to store various types of data to support operations at the apparatus 400. Examples of such data include instructions for any application or method operating on the device 400, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 404 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
The multimedia component 408 includes a screen that provides an output interface between the device 400 and the user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 408 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the apparatus 400 is in an operation mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 410 is configured to output and/or input audio signals. For example, audio component 410 includes a Microphone (MIC) configured to receive external audio signals when apparatus 400 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 404 or transmitted via the communication component 416. In some embodiments, audio component 410 also includes a speaker for outputting audio signals.
The I/O interface 412 provides an interface between the processing component 402 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor component 414 includes one or more sensors for providing various aspects of status assessment for the apparatus 400. For example, the sensor assembly 414 may detect an open/closed state of the apparatus 400, the relative positioning of the components, such as a display and keypad of the apparatus 400, the sensor assembly 414 may also detect a change in the position of the apparatus 400 or a component of the apparatus 400, the presence or absence of user contact with the apparatus 400, orientation or acceleration/deceleration of the apparatus 400, and a change in the temperature of the apparatus 400. The sensor assembly 414 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 414 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 414 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 416 is configured to facilitate wired or wireless communication between the apparatus 400 and other devices. The apparatus 400 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 416 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 416 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 400 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the fingerprint unlocking method described above.
In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 404 comprising instructions, executable by the processor 420 of the apparatus 400 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
In an exemplary embodiment, there is also provided a computer-readable storage medium having instructions stored therein, which when executed by a processor of a terminal, enable the terminal to perform the above fingerprint unlocking method.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure 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 present disclosure is limited only by the appended claims.
Claims (12)
1. A fingerprint unlocking method, characterized in that the method comprises:
when the terminal is in a waiting unlocking state, if the fingerprint pressing on the touch screen is detected to be effective fingerprint pressing, awakening a system of the terminal;
when the pressing force degree of the fingerprint pressing is detected to reach a preset threshold value, lightening the touch screen;
acquiring fingerprint characteristic information of the fingerprint pressing;
when the fingerprint characteristic information is successfully matched with the fingerprint template, unlocking the terminal;
before the waking up the system of the terminal, the method further includes:
determining a fingerprint identification area of the touch screen, wherein a fingerprint sensor is included in a light-emitting layer of the touch screen, and a fingerprint identification pixel point is arranged beside each red, green and blue (RGB) pixel point of the touch screen, so that the whole touch screen has a fingerprint identification function;
when the location of the fingerprint press is within the fingerprint identification area, determining the fingerprint press as a valid fingerprint press;
the fingerprint identification area of the touch screen is determined, including;
according to the position of the fingerprint sensor, dividing selectable fingerprint identification areas of the touch screen, and setting one or more selectable fingerprint identification areas as the fingerprint identification areas according to selection operation detected on a setting interface;
the acquiring of the fingerprint feature information of the fingerprint pressing comprises:
after the touch screen is lightened, the light source irradiates a finger fingerprint, the protruded lines and the sunken lines on the finger fingerprint are respectively subjected to diffuse reflection and total reflection, a fingerprint image with clear black and white is formed on the side of the fingerprint sensor, and the fingerprint characteristic information is extracted according to the fingerprint image.
2. The method of claim 1, wherein illuminating the touch screen comprises:
determining the current screen locking display state of the touch screen, wherein the screen locking display state comprises a message screen display state and a screen off state;
when the touch screen is in the screen displaying state, switching the touch screen from the screen displaying state to a screen lightening state;
when the touch screen is in the screen-off state, the touch screen is switched from the screen-off state to the screen-on state.
3. The method of claim 1, wherein after illuminating the touch screen, the method further comprises:
acquiring a preset screen locking interface;
and displaying the screen locking interface.
4. The method of claim 1, further comprising:
when the pressing force degree of the fingerprint pressing is detected not to reach the preset threshold value, if effective fingerprint pressing on the touch screen is detected within a preset time interval and the pressing force degree reaches the preset threshold value, lighting the touch screen and subsequent steps are executed;
and if the effective fingerprint pressing on the touch screen is not detected within the preset time interval, controlling the terminal to enter the unlocking waiting state.
5. The method of claim 1, wherein after the obtaining fingerprint characteristic information of the fingerprint press, the method further comprises:
when the fingerprint feature information fails to be matched with the fingerprint template, if effective fingerprint pressing on the touch screen is detected within a preset time, acquiring the pressed fingerprint feature information and performing the subsequent steps;
and if the effective fingerprint pressing on the touch screen is not detected within the preset time, controlling the terminal to enter the unlocking waiting state.
6. A fingerprint unlocking device, characterized in that the device comprises:
the terminal comprises a wake-up module and a control module, wherein the wake-up module is used for waking up a system of the terminal if detecting that fingerprint pressing on a touch screen is effective when the terminal is in a waiting unlocking state;
the screen display control module is used for lightening the touch screen when detecting that the pressing force degree of the fingerprint pressing reaches a preset threshold value;
the fingerprint acquisition module is used for acquiring fingerprint characteristic information of the fingerprint pressing;
the unlocking module is used for unlocking the terminal when the fingerprint characteristic information is successfully matched with the fingerprint template; the device further comprises:
the touch screen comprises a first determining module, a second determining module and a control module, wherein the first determining module is used for determining a fingerprint identification area of the touch screen, a fingerprint sensor is arranged in a light-emitting layer of the touch screen, and a fingerprint identification pixel point is arranged beside each red, green and blue (RGB) pixel point of the touch screen, so that the whole touch screen has a fingerprint identification function;
a second determination module to determine the fingerprint press as a valid fingerprint press when the location of the fingerprint press is within the fingerprint identification area;
the first determining module is used for dividing the touch screen into selectable fingerprint identification areas according to the position of the fingerprint sensor, and setting one or more selectable fingerprint identification areas as the fingerprint identification areas according to the selection operation detected on a setting interface;
the fingerprint acquisition module is used for irradiating a finger fingerprint by a light source after the touch screen is lightened, forming a fingerprint image with clear black and white on the side of the fingerprint sensor by respectively performing diffuse reflection and total reflection on the protruded lines and the sunken lines on the finger fingerprint, and extracting the fingerprint characteristic information according to the fingerprint image.
7. The apparatus of claim 6, wherein the on-screen control module is configured to: determining the current screen locking display state of the touch screen, wherein the screen locking display state comprises a message screen display state and a screen off state; when the touch screen is in the screen displaying state, switching the touch screen from the screen displaying state to a screen lightening state; when the touch screen is in the screen-off state, the touch screen is switched from the screen-off state to the screen-on state.
8. The apparatus of claim 6, further comprising:
the interface acquisition module is used for acquiring a preset screen locking interface;
and the display module is used for displaying the screen locking interface.
9. The apparatus of claim 6, further comprising:
the first fingerprint detection module is used for executing the steps of lightening the touch screen and the subsequent steps if effective fingerprint pressing on the touch screen is detected within a preset time interval and the pressing force reaches the preset threshold value when the pressing force of the fingerprint pressing is detected not to reach the preset threshold value; and if the effective fingerprint pressing on the touch screen is not detected within the preset time interval, controlling the terminal to enter the unlocking waiting state.
10. The apparatus of claim 6, further comprising:
the second fingerprint detection module is used for executing the acquisition of the pressed fingerprint characteristic information and subsequent steps thereof if the effective fingerprint pressing on the touch screen is detected within the preset time when the fingerprint characteristic information is unsuccessfully matched with the fingerprint template; and if the effective fingerprint pressing on the touch screen is not detected within the preset time, controlling the terminal to enter the unlocking waiting state.
11. A fingerprint unlocking device, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to: when the terminal is in a waiting unlocking state, if the fingerprint pressing on the touch screen is detected to be effective fingerprint pressing, awakening a system of the terminal; when the pressing force degree of the fingerprint pressing is detected to reach a preset threshold value, lightening the touch screen; acquiring fingerprint characteristic information of the fingerprint pressing; when the fingerprint characteristic information is successfully matched with the fingerprint template, unlocking the terminal;
the processor is further configured to: determining a fingerprint identification area of the touch screen, wherein a fingerprint sensor is included in a light-emitting layer of the touch screen, and a fingerprint identification pixel point is arranged beside each red, green and blue (RGB) pixel point of the touch screen, so that the whole touch screen has a fingerprint identification function; when the location of the fingerprint press is within the fingerprint identification area, determining the fingerprint press as a valid fingerprint press;
the processor is further configured to:
according to the position of the fingerprint sensor, dividing selectable fingerprint identification areas of the touch screen, and setting one or more selectable fingerprint identification areas as the fingerprint identification areas according to selection operation detected on a setting interface;
the processor is further configured to:
after the touch screen is lightened, the light source irradiates a finger fingerprint, the protruded lines and the sunken lines on the finger fingerprint are respectively subjected to diffuse reflection and total reflection, a fingerprint image with clear black and white is formed on the side of the fingerprint sensor, and the fingerprint characteristic information is extracted according to the fingerprint image.
12. A computer-readable storage medium, wherein instructions are stored in the storage medium, and when executed by a processor of a terminal, the instructions enable the terminal to perform the fingerprint unlocking method according to any one of claims 1 to 5.
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| CN109862187B (en) * | 2019-01-31 | 2021-03-16 | Oppo广东移动通信有限公司 | Message processing method, device, terminal and storage medium |
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