CN106778169B - Fingerprint unlocking method and device - Google Patents
Fingerprint unlocking method and device Download PDFInfo
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- CN106778169B CN106778169B CN201611106265.5A CN201611106265A CN106778169B CN 106778169 B CN106778169 B CN 106778169B CN 201611106265 A CN201611106265 A CN 201611106265A CN 106778169 B CN106778169 B CN 106778169B
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- G06—COMPUTING; CALCULATING OR COUNTING
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- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
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- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
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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: acquiring an electric signal corresponding to each physical key in a plurality of physical keys in the fingerprint unlocking process; detecting whether the touch operation meets a corresponding preset threshold condition or not according to the semaphore of the electric signal corresponding to each physical key; if the touch operation meets the corresponding preset threshold condition, fingerprint matching is carried out based on the fingerprint acquired on the main physical key; and if the matching is successful, unlocking the terminal. This is disclosed through detecting whether touch operation satisfies the corresponding threshold condition of predetermineeing, and when can avoiding the user to touch main physical button carelessly, the terminal execution acquireed fingerprint and fingerprint matching operation, and the matching is unsuccessful reminds the user, causes the interference to user's unnecessary, can also avoid terminal unnecessary power loss simultaneously.
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 terminal technology, fingerprint identification technology has been commonly applied to terminals. Fingerprint identification technology is generally applied to encryption, unlocking or function opening and the like to realize a function of protecting user information or simplify a function of user operation.
Taking the executed operation as an unlocking operation as an example, when the terminal screen is in a screen locking state, if the touch operation of a user on a fingerprint identification area is detected, fingerprint acquisition is carried out in the fingerprint identification area, the acquired fingerprint is identified, if the identification is successful, the terminal is unlocked, and the unlocked system interface is displayed.
Disclosure of Invention
In order to overcome the problems in the related art, the present disclosure provides a fingerprint unlocking method and apparatus.
According to a first aspect of the embodiments of the present disclosure, a fingerprint unlocking method is provided, where the fingerprint unlocking method is applied to a terminal that includes a plurality of physical keys on a housing, where the plurality of physical keys includes a main physical key and N auxiliary physical keys, where the N auxiliary physical keys include at least one pair of auxiliary physical keys distributed on both sides of the main physical key, where N is a positive integer greater than or equal to 2, and the method includes:
acquiring an electric signal corresponding to each physical key in the plurality of physical keys in the fingerprint unlocking process;
detecting whether the touch operation meets a corresponding preset threshold condition or not according to the semaphore of the electric signal corresponding to each physical key;
if the touch operation meets the corresponding preset threshold condition, fingerprint matching is carried out based on the fingerprint acquired on the main physical key;
and if the matching is successful, executing unlocking operation on the terminal.
Whether the touch operation meets the corresponding preset threshold condition is detected according to the semaphore size of the electric signal corresponding to each physical key triggered by the touch operation, whether the unlocking operation is executed on the terminal is determined, the situation that when a user carelessly touches the main physical key can be avoided, the terminal executes the fingerprint acquisition and fingerprint matching operation, the user is unsuccessfully reminded of the matching, unnecessary interference to the user is caused, and meanwhile unnecessary power loss of the terminal can be avoided.
In a first possible implementation manner of the first aspect of the present disclosure, the detecting whether the touch operation satisfies a corresponding preset threshold condition according to a semaphore of the electrical signal corresponding to each physical key includes:
if the electric signal corresponding to the main physical key is larger than a first preset threshold value, the electric signal corresponding to the auxiliary physical key on the first side of the main physical key is larger than a second preset threshold value, and the electric signal corresponding to the auxiliary physical key on the second side of the main physical key is smaller than a third preset threshold value, it is determined that the touch operation meets the corresponding preset threshold value condition, the second side is located opposite to the first side, and the first preset threshold value and the second preset threshold value are both larger than or equal to the third preset threshold value.
By the method, whether the touch operation meets the corresponding preset threshold condition or not is detected, the detection accuracy can be improved, and unnecessary interference caused by a false touch event to a user can be further avoided.
In a second possible implementation manner of the first aspect of the present disclosure, the detecting, according to a semaphore of the electrical signal corresponding to each physical key, whether the touch operation satisfies a corresponding preset threshold condition includes:
and if the electric signal corresponding to the main physical key is larger than a first preset threshold value, determining that the touch operation meets a corresponding preset threshold value condition, wherein the second side is positioned opposite to the first side, and the first preset threshold value is larger than or equal to the third preset threshold value.
By the method, whether the touch operation meets the corresponding preset threshold condition or not is detected, so that the fingerprint unlocking operation can be normally performed when the finger of the user is small, and the success rate of fingerprint unlocking is improved.
In a third possible implementation manner of the first aspect of the present disclosure, the detecting whether the touch operation satisfies a corresponding preset threshold condition according to a semaphore of the electrical signal corresponding to each physical key includes:
and if the electric signal corresponding to the main physical key is larger than a first preset threshold value, determining that the touch operation does not meet the corresponding preset threshold value condition, wherein the second side is positioned opposite to the first side.
In order to avoid that the terminal mistakenly performs fingerprint acquisition and fingerprint matching operations for unlocking the terminal by the user, when the electric signals corresponding to the physical keys are large, the touch operation is determined not to meet the corresponding preset threshold condition, namely the touch operation is mistakenly touched, so that the terminal is prevented from responding to the mistakenly touched operation by the mistakenly touched terminal, and unnecessary interference is caused to the user.
In a fourth possible implementation manner of the first aspect of the present disclosure, N is 2, and the 2 auxiliary physical keys are symmetrically distributed on the left side and the right side of the main physical key, or the 2 auxiliary physical keys are symmetrically distributed on the upper side and the lower side of the main physical key.
According to the common use habit of a user, the two auxiliary physical keys are arranged on the left side and the right side of the main physical key, so that the number of the used auxiliary physical keys is reduced as much as possible under the condition of meeting the use requirement, and the appearance attractiveness of the terminal can be improved.
According to a second aspect of the embodiments of the present disclosure, there is provided a fingerprint unlocking device, where the fingerprint unlocking device is applied to a terminal including a plurality of physical keys on a housing, the plurality of physical keys include a main physical key and N auxiliary physical keys, the N auxiliary physical keys include at least one pair of auxiliary physical keys distributed on two sides of the main physical key, N is a positive integer greater than or equal to 2, and the fingerprint unlocking device includes:
the acquisition module is used for acquiring the electric signal corresponding to each physical key in the plurality of physical keys in the fingerprint unlocking process;
the detection module is used for detecting whether the touch operation meets a corresponding preset threshold condition according to the semaphore of the electric signal corresponding to each physical key acquired by the acquisition module;
the fingerprint matching module is used for matching fingerprints based on the fingerprints acquired on the main physical key if the detection result of the detection module indicates that the touch operation meets the corresponding preset threshold condition;
and the unlocking module is used for executing unlocking operation on the terminal if the fingerprint matching result of the fingerprint matching module is successful in matching.
Whether the touch operation meets the corresponding preset threshold condition is detected according to the semaphore size of the electric signal corresponding to each physical key triggered by the touch operation, whether the unlocking operation is executed on the terminal is determined, the situation that when a user carelessly touches the main physical key can be avoided, the terminal executes the fingerprint acquisition and fingerprint matching operation, the user is unsuccessfully reminded of the matching, unnecessary interference to the user is caused, and meanwhile unnecessary power loss of the terminal can be avoided.
In a first possible implementation manner of the second aspect of the present disclosure, the detection module is configured to:
if the electric signal corresponding to the main physical key is larger than a first preset threshold value, the electric signal corresponding to the auxiliary physical key on the first side of the main physical key is larger than a second preset threshold value, and the electric signal corresponding to the auxiliary physical key on the second side of the main physical key is smaller than a third preset threshold value, it is determined that the touch operation meets the corresponding preset threshold value condition, the second side is located opposite to the first side, and the first preset threshold value and the second preset threshold value are both larger than or equal to the third preset threshold value.
By the method, whether the touch operation meets the corresponding preset threshold condition or not is detected, the detection accuracy can be improved, and unnecessary interference caused by a false touch event to a user can be further avoided.
In a second possible implementation manner of the second aspect of the present disclosure, the detection module is configured to:
and if the electric signal corresponding to the main physical key is larger than a first preset threshold value, determining that the touch operation meets a corresponding preset threshold value condition, wherein the second side is positioned opposite to the first side, and the first preset threshold value is larger than or equal to the third preset threshold value.
By the method, whether the touch operation meets the corresponding preset threshold condition or not is detected, so that the fingerprint unlocking operation can be normally performed when the finger of the user is small, and the success rate of fingerprint unlocking is improved.
In a third possible implementation manner of the second aspect of the present disclosure, the detection module is configured to:
and if the electric signal corresponding to the main physical key is larger than a first preset threshold value, determining that the touch operation does not meet the corresponding preset threshold value condition, wherein the second side is positioned opposite to the first side.
In order to avoid that the terminal mistakenly performs fingerprint acquisition and fingerprint matching operations for unlocking the terminal by the user, when the electric signals corresponding to the physical keys are large, the touch operation is determined not to meet the corresponding preset threshold condition, namely the touch operation is mistakenly touched, so that the terminal is prevented from responding to the mistakenly touched operation by the mistakenly touched terminal, and unnecessary interference is caused to the user.
In a fourth possible implementation manner of the second aspect of the present disclosure, N is 2, and the 2 auxiliary physical keys are symmetrically distributed on the left side and the right side of the main physical key, or the 2 auxiliary physical keys are symmetrically distributed on the upper side and the lower side of the main physical key.
According to the common use habit of a user, the two auxiliary physical keys are arranged on the left side and the right side of the main physical key, so that the number of the used auxiliary physical keys is reduced as much as possible under the condition of meeting the use requirement, and the appearance attractiveness of the terminal can be improved.
In a third aspect, a fingerprint unlocking device is further provided, including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
acquiring an electric signal corresponding to each physical key in the plurality of physical keys in the fingerprint unlocking process;
detecting whether the touch operation meets a corresponding preset threshold condition or not according to the semaphore of the electric signal corresponding to each physical key;
if the touch operation meets the corresponding preset threshold condition, fingerprint matching is carried out based on the fingerprint acquired on the main physical key;
and if the matching is successful, executing unlocking operation on the terminal.
The technical scheme provided by the embodiment of the disclosure has the following beneficial effects:
this is disclosed through the semaphore size of the signal of telecommunication that every physics button corresponds according to touch operation trigger, detects whether this touch operation satisfies the corresponding threshold condition of predetermineeing, whether confirm to carry out the unblock operation to the terminal, when can avoiding the user to touch main physics button carelessly, the terminal execution acquires fingerprint and fingerprint matching operation, and the matching is unsuccessful reminds the user, causes the interference of user unnecessary, can also avoid terminal unnecessary electric quantity loss simultaneously.
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. 1A is a schematic diagram illustrating a front appearance of a terminal according to one exemplary embodiment;
FIG. 1B is a schematic diagram illustrating a rear appearance of a terminal in accordance with one illustrative embodiment;
FIG. 1C is a schematic diagram illustrating a front external view of another terminal according to an exemplary embodiment;
FIG. 2 is a flow diagram illustrating a method of fingerprint unlocking in accordance with 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 400 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. 1A is a schematic diagram illustrating a front appearance of a terminal according to an exemplary embodiment, where a housing of the terminal includes a plurality of physical keys, the plurality of physical keys includes a main physical key and N auxiliary physical keys, and the N auxiliary physical keys are distributed within a preset range of the main physical key, where N is a positive integer greater than or equal to 2. The N auxiliary physical keys comprise at least one pair of auxiliary physical keys distributed on two sides of the main physical key, wherein the two sides of the main physical key refer to the left side and the right side of the main physical key or refer to the upper side and the lower side of the main physical key. Correspondingly, at least two physical keys in the N auxiliary physical keys are distributed on the left side and the right side of the main physical key or distributed on the upper side and the lower side of the main physical key. In fig. 1A, the upper side, the lower side, the left side and the right side of the main physical key are all distributed with auxiliary physical keys as an example, wherein a circular key is the main physical key, and rectangular keys distributed around the main physical key are the auxiliary physical keys, and the shape of the main physical key and the shape of the auxiliary physical keys shown in the figure are only used for illustration and are not used for limiting the shape of the main physical key and the shape of the auxiliary physical keys on the terminal housing provided by the present disclosure.
It should be noted that the main physical key includes a fingerprint sensor, and the N auxiliary physical keys are capable of responding to a touch operation of a user, for example, the N auxiliary physical keys may include a capacitive sensor or an inductive sensor, and may also include other sensors capable of responding to a touch operation of a user, which is not limited in this disclosure.
In the terminal shown in fig. 1A, the layout of the plurality of physical keys is specifically described by taking the main physical key as a Home key as an example, and in an actual use process, because the terminal is used for implementing the fingerprint unlocking method provided by the present disclosure, the positions of the N auxiliary physical keys can be adjusted according to the position of the main physical key where the fingerprint sensor is located. For example, when the main physical key is on the back of the terminal, the N auxiliary physical keys may also be located within a preset range of the main physical key, for example, the N auxiliary physical keys include at least one pair of auxiliary physical keys distributed on two sides of the main physical key, as shown in fig. 1B, where fig. 1B is a schematic view of the back of the terminal according to an exemplary embodiment.
The preset range can be determined according to the size of the main physical key and the size of the finger of the user, so that the user can not touch the main physical key and the N auxiliary physical keys in a large area simultaneously when executing normal single-finger operation, and the purpose of determining whether the touch operation executed by the user meets the corresponding preset threshold condition based on the main physical key and the N auxiliary physical keys is achieved. The specific determination method and the specific numerical value of the preset range are not limited in the embodiments of the present disclosure.
In the embodiment of the present disclosure, the corresponding preset threshold condition may be used to indicate a single finger operation, that is, a user only uses one finger to operate in an operation process, for example, when the user performs a fingerprint unlocking operation, only one finger is usually used to perform a touch operation on a main physical key including a fingerprint sensor, so that the fingerprint sensor on the main physical key acquires a fingerprint of the finger, and further, the purpose of unlocking the fingerprint is achieved.
The terminal provided by the embodiment of the disclosure can realize that under the condition that the touch operation meets the corresponding preset threshold condition, because the size of the area that can be touched by the finger is limited, the finger cannot touch the plurality of physical keys in a large area at the same time, and therefore the terminal can determine whether the touch operation meets the corresponding preset threshold condition according to the size of the signal corresponding to each physical key; accordingly, when the terminal detects that the user touches the physical keys in a large area, it is determined that the touch operation does not satisfy the corresponding preset threshold condition, and may be a misoperation of the terminal by the user, and the touch operation is not responded.
Fig. 1C is a schematic front view of another terminal according to an exemplary embodiment, where a housing of the terminal shown in fig. 1C includes a main physical key and two auxiliary physical keys on two sides of the main physical key, where N is 2, and the 2 auxiliary physical keys are symmetrically distributed on the left side and the right side of the main physical key, and of course, the two physical keys may also be distributed on the upper side and the lower side of the main physical key, which is not limited in this disclosure.
According to the common use habit of a user and the common position of the main physical key comprising the fingerprint sensor, the two auxiliary physical keys are arranged on the left side and the right side of the main physical key, so that the number of the used auxiliary physical keys is reduced as much as possible under the condition of meeting the use requirement, and the appearance attractiveness of the terminal can be improved.
FIG. 2 is a flowchart illustrating a fingerprint unlocking method according to an exemplary embodiment. The fingerprint unlocking method is applied to any one of the terminals shown in fig. 1A to 1C, and with reference to fig. 2, the embodiment specifically includes:
in step 201, during the fingerprint unlocking process, an electrical signal corresponding to each of the plurality of physical keys is acquired.
In the embodiment of the present disclosure, a main physical key of the plurality of physical keys includes a fingerprint sensor, and the fingerprint sensor may be a capacitive fingerprint sensor, and the capacitive fingerprint sensor may generate a corresponding electrical signal according to a size of a touch area of a user. Of course, the fingerprint sensor may also be an electric current type fingerprint sensor, or another type of fingerprint sensor capable of generating an electric signal according to a touch operation of a user, which is not particularly limited in the embodiments of the present disclosure.
Similarly, each auxiliary physical key of the plurality of physical keys may include a sensor capable of generating an electrical signal when a touch operation is detected by a user, for example, when a touch operation is performed on the sensor by the user, the sensor triggers an interrupt of the corresponding integrated circuit of the sensor to generate an electrical signal. The sensor may be a capacitive sensor, a current sensor, or another type of sensor capable of generating an electrical signal according to a touch operation of a user, and the specific type of the sensor is not limited in the embodiments of the present disclosure.
It should be noted that, the magnitude of the signal quantity of the electrical signal corresponding to each physical key is in a proportional relationship with the touch area of the user on the physical key, that is, for any physical key, the larger the area touched by the user is, the larger the signal quantity of the generated electrical signal is, the smaller the area touched by the user is, and the smaller the signal quantity of the generated electrical signal is.
Because the semaphore of the electric signal corresponding to each physical key is in a direct proportion relation with the touch area of the user on the physical key, the terminal can determine the touch area of each physical key by the touch operation by acquiring the electric signal corresponding to each physical key in the plurality of physical keys, and further determine whether the touch operation is misoperation. In this embodiment, because the user usually touches the main physical key specially to perform fingerprint unlocking, in this embodiment, when the terminal detects a touch operation on the main physical key, the fingerprint unlocking flow is triggered, and when the terminal only detects a touch operation on the auxiliary physical key, the fingerprint unlocking flow is not triggered, so that energy consumption of the terminal is reduced, and meanwhile, the accuracy of fingerprint unlocking is improved.
In step 202, detecting whether the touch operation meets a corresponding preset threshold condition according to the semaphore of the electrical signal corresponding to each physical key; if the touch operation satisfies the corresponding preset threshold condition, step 203 is executed, and if the touch operation does not satisfy the corresponding preset threshold condition, step 205 is executed.
In this disclosure, after the electrical signal corresponding to each physical key is obtained, if the semaphore of the electrical signal corresponding to the main physical key is greater than the preset threshold, and the semaphore of the electrical signal corresponding to each auxiliary physical key is smaller than the preset threshold, it is determined that the touch operation satisfies the corresponding preset threshold condition. It should be noted that, the embodiment of the present disclosure does not limit the specific determination method and the specific determined numerical value of the preset threshold.
Because when the user puts the terminal such as smart mobile phone in the pocket or in the package, the user carelessly can touch the main physical key comprising the fingerprint sensor, the touch operation under the condition is a large-area touch event of a plurality of fingers or palms, the intention of the user is not to execute the unlocking operation on the terminal through the fingerprint at the moment, therefore, in order to avoid the above situation, whether the touch operation meets the corresponding preset threshold condition or not is detected according to the semaphore of the electric signal corresponding to each physical key, when the user carelessly touches the main physical key can be avoided, the terminal executes the fingerprint acquisition and fingerprint matching operation, the user is reminded if the matching is unsuccessful, unnecessary interference can be caused to the user, and meanwhile, unnecessary electric quantity loss of the terminal can be avoided.
In this disclosure, in order to improve the detection accuracy of whether the touch operation satisfies the corresponding preset threshold condition, the method for detecting whether the touch operation satisfies the corresponding preset threshold condition according to the semaphore of the electrical signal corresponding to each physical key may further include the following three steps:
firstly, if the electric signal corresponding to the main physical key is larger than a first preset threshold value, the electric signal corresponding to the auxiliary physical key on the first side of the main physical key is larger than a second preset threshold value, and the electric signal corresponding to the auxiliary physical key on the second side of the main physical key is smaller than a third preset threshold value, it is determined that the touch operation meets the corresponding preset threshold value condition, the second side is located opposite to the first side, and the first preset threshold value and the second preset threshold value are both larger than or equal to the third preset threshold value.
It should be noted that, in the embodiment of the present disclosure, the determination method and specific numerical values of the first preset threshold, the second preset threshold, and the third preset threshold are not limited, where the first preset threshold and the second preset threshold may be the same or different, and the embodiment of the present disclosure also does not limit this.
For example, when the layout of the plurality of physical keys is the layout of the plurality of physical keys on the terminal housing as shown in fig. 1C, that is, the left and right sides of the main physical key each include one auxiliary physical key, if the user holds the terminal with one hand in the right hand, the user typically touches the main physical key including the fingerprint sensor with the thumb of the right hand, in which case the user's touch area to the main physical key and the touch area to the auxiliary physical key on the right side of the main physical key are larger than the touch area to the auxiliary physical key on the left side of the main physical key.
That is, if the electrical signal corresponding to the main physical key is greater than the first preset threshold, the electrical signal corresponding to the auxiliary physical key on the right side of the main physical key is greater than the second preset threshold, and the electrical signal corresponding to the auxiliary physical key on the left side of the main physical key is less than the third preset threshold, it can be determined that the touch operation is a single-finger operation of the right hand of the user, and the corresponding preset threshold condition is satisfied.
Correspondingly, if the electrical signal corresponding to the main physical key is greater than the first preset threshold, the electrical signal corresponding to the auxiliary physical key on the left side of the main physical key is greater than the second preset threshold, and the electrical signal corresponding to the auxiliary physical key on the right side of the main physical key is less than the third preset threshold, it can be determined that the touch operation is a single-finger operation on the left hand of the user, and the corresponding preset threshold condition is met.
In another case, when the layout of the plurality of physical keys is the layout of the plurality of physical keys on the terminal housing as shown in fig. 1B, that is, the main physical key including the fingerprint sensor is located on the back of the terminal housing, and the two auxiliary physical keys are located on the upper and lower sides of the main physical key, respectively, if the electrical signal corresponding to the main physical key is greater than the first preset threshold, the electrical signal corresponding to the auxiliary physical key on the lower side of the main physical key is greater than the second preset threshold, and the electrical signal corresponding to the auxiliary physical key on the upper side of the main physical key is less than the third preset threshold, it can be determined that the touch operation satisfies the corresponding preset threshold condition.
By the method, whether the touch operation meets the corresponding preset threshold condition or not is detected, the detection accuracy can be improved, and unnecessary interference caused by a false touch event to a user can be further avoided.
Secondly, if the electric signal corresponding to the main physical key is larger than a first preset threshold value, the electric signal corresponding to the auxiliary physical key on the first side of the main physical key and the electric signal corresponding to the auxiliary physical key on the second side of the main physical key are both smaller than a third preset threshold value, it is determined that the touch operation meets the corresponding preset threshold value condition, the second side is opposite to the first side, and the first preset threshold value is larger than or equal to the third preset threshold value.
When the finger of the user is small, in the process of performing the touch operation on the main physical key, the touch area of the auxiliary physical key located in the preset range of the main physical key is small, and under the condition, only when the electric signal corresponding to the main physical key is large enough and the electric signal corresponding to the auxiliary physical key is small, it can be determined that the touch operation meets the corresponding preset threshold condition.
By the method, whether the touch operation meets the corresponding preset threshold condition or not is detected, so that the fingerprint unlocking operation can be normally performed when the finger of the user is small, and the success rate of fingerprint unlocking is improved.
And thirdly, if the electric signal corresponding to the main physical key is larger than a first preset threshold value, determining that the touch operation is a multi-finger operation and does not meet the corresponding preset threshold value condition, wherein the electric signal corresponding to the auxiliary physical key on the first side of the main physical key and the electric signal corresponding to the auxiliary physical key on the second side of the main physical key are both larger than a second preset threshold value, and the second side is positioned opposite to the first side.
For example, when the layout of the plurality of physical keys is the layout of the plurality of physical keys on the terminal housing as shown in fig. 1C, if the user inadvertently touches the main physical key including the fingerprint sensor, in order to avoid that the terminal mistakenly assumes that the user needs to unlock the terminal to perform fingerprint acquisition and fingerprint matching operations, when the electrical signals corresponding to the plurality of physical keys are all large, it is determined that the touch operation does not satisfy the corresponding preset threshold condition, that is, the touch operation is a false touch operation, thereby preventing the terminal from being touched by a false touch to respond to the false touch operation, and causing unnecessary interference to the user.
In this disclosure, the process of detecting whether the touch operation satisfies the corresponding preset threshold condition may be implemented by using any one of the three detection methods, or by using a combination of at least two of the three detection methods, which is not specifically limited in this disclosure.
In step 203, if the touch operation meets the corresponding preset threshold condition, fingerprint matching is performed based on the fingerprint collected on the main physical key.
In an embodiment of the present disclosure, the method for collecting fingerprint information by a fingerprint sensor may be: the fingerprint image is obtained by adopting a capacitive fingerprint sensor, the corresponding fingerprint sensor comprises a capacitor array consisting of a plurality of micro capacitors, a polar plate of the capacitor array is formed by fingers of a user, and the distances between ridges and valleys of fingerprints in different areas are different, so that the capacitance of each unit of the capacitor array is changed accordingly, and the fingerprint image can be obtained. Of course, the at least one fingerprint image may also be acquired by an inductive fingerprint sensor or a semiconductor fingerprint sensor, or by other methods, which is not specifically limited in this disclosure.
Based on the fingerprint information collected by the fingerprint sensor, the specific method for fingerprint matching can be as follows: matching the fingerprint information with at least one fingerprint template; and when the matching rate of any fingerprint template in the at least one fingerprint template and the fingerprint information is greater than a preset rate, determining that the matching is successful.
Wherein, the at least one fingerprint template is entered into the terminal by the user to be stored in the terminal, and the storage method of the at least one fingerprint template may be: the storage is performed according to the order of the recording time, or according to the size of the fingerprint information amount, or by using other methods.
In step 204, if the matching is successful, an unlocking operation is performed on the terminal.
In the embodiment of the present disclosure, if the matching rate of the collected fingerprint information and any one of the at least one fingerprint template is greater than a preset rate, it is determined that the fingerprint image and the fingerprint template are successfully matched, otherwise, it is determined that the fingerprint image and the fingerprint template are unsuccessfully matched. The determining method and the specific numerical value of the preset ratio are not limited in the embodiment of the disclosure.
When any fingerprint image is successfully matched with any fingerprint template in the at least one fingerprint template, executing unlocking operation and displaying an unlocked system interface; and when the fact that the at least one acquired fingerprint image is not successfully matched with any one of the at least one fingerprint template is detected, prompting the user that the fingerprint unlocking fails. The specific prompting method can be as follows: the prompt information is displayed on the lock interface, or the user is prompted in a terminal vibration or voice prompt mode, of course, other methods may also be used to prompt the user, which is not limited in the embodiment of the present disclosure.
In step 205, if the touch operation does not satisfy the corresponding preset threshold condition, the touch operation is not responded.
If the detection result in step 202 is that the touch operation does not satisfy the corresponding preset threshold condition, in the embodiment of the present disclosure, it is considered that the touch operation on the plurality of physical keys does not satisfy the corresponding preset threshold condition, that is, the touch operation is a false touch operation, so as to avoid unnecessary interference to the user caused by the terminal performing the fingerprint acquisition and fingerprint matching operations based on the false touch operation, and when it is detected that the touch operation does not satisfy the corresponding preset threshold condition, the touch operation is not responded, that is, the operations such as the fingerprint acquisition and fingerprint matching are not performed.
According to the method provided by the embodiment of the disclosure, whether the touch operation meets the corresponding preset threshold condition is detected according to the semaphore size of the electric signal corresponding to each physical key triggered by the touch operation, whether the unlocking operation is executed on the terminal is determined, and the situation that when a user carelessly touches a main physical key, the terminal executes fingerprint acquisition and fingerprint matching operations, the matching is unsuccessful, the user is reminded, unnecessary interference on the user is caused, and meanwhile, unnecessary electric quantity loss of the terminal can be avoided; whether the touch operation meets the corresponding preset threshold condition or not is detected by comparing the semaphore of the electric signal corresponding to different physical keys with different thresholds, so that the detection accuracy can be improved, and unnecessary interference caused by a false touch event to a user can be further avoided.
Fig. 3 is a block diagram illustrating a fingerprint unlocking device according to an exemplary embodiment. Referring to fig. 3, the apparatus includes an acquisition module 301, a detection module 302, a fingerprint matching module 303 and an unlocking module 304.
An obtaining module 301, configured to obtain, in a fingerprint unlocking process, an electrical signal corresponding to each physical key in the plurality of physical keys;
a detecting module 302, configured to detect whether the touch operation meets a corresponding preset threshold condition according to the semaphore, acquired by the acquiring module 301, of the electrical signal corresponding to each physical key;
a fingerprint matching module 303, configured to perform fingerprint matching based on the fingerprint acquired by the main physical key if the detection result of the detection module 302 is that the touch operation meets a corresponding preset threshold condition;
an unlocking module 304, configured to, if the fingerprint matching result of the fingerprint matching module 303 is that matching is successful, perform an unlocking operation on the terminal.
In a first possible implementation manner provided by the present disclosure, the detection module 302 is configured to:
if the electric signal corresponding to the main physical key is larger than a first preset threshold value, the electric signal corresponding to the auxiliary physical key on the first side of the main physical key is larger than a second preset threshold value, and the electric signal corresponding to the auxiliary physical key on the second side of the main physical key is smaller than a third preset threshold value, it is determined that the touch operation meets the corresponding preset threshold value condition, the second side is located opposite to the first side, and the first preset threshold value and the second preset threshold value are both larger than or equal to the third preset threshold value.
In a second possible implementation manner provided by the present disclosure, the detecting module 302 is configured to:
and if the electric signal corresponding to the main physical key is larger than a first preset threshold value, determining that the touch operation meets a corresponding preset threshold value condition, wherein the second side is positioned opposite to the first side, and the first preset threshold value is larger than or equal to the third preset threshold value.
In a third possible implementation manner provided by the present disclosure, the detecting module 302 is configured to:
and if the electric signal corresponding to the main physical key is larger than a first preset threshold value, determining that the touch operation does not meet the corresponding preset threshold value condition, wherein the second side is positioned opposite to the first side.
In a fourth possible implementation manner provided by the present disclosure, N is 2, and the 2 auxiliary physical keys are symmetrically distributed on the left side and the right side of the main physical key, or the 2 auxiliary physical keys are symmetrically distributed on the upper side and the lower side of the main physical key.
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 400 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 non-transitory computer readable storage medium, wherein instructions, when executed by a processor of a mobile terminal, enable the mobile terminal to perform the above fingerprint unlocking method:
acquiring an electric signal corresponding to each physical key in the plurality of physical keys in the fingerprint unlocking process;
detecting whether the touch operation meets a corresponding preset threshold condition or not according to the semaphore of the electric signal corresponding to each physical key;
if the touch operation meets the corresponding preset threshold condition, fingerprint matching is carried out based on the fingerprint acquired on the main physical key;
and if the matching is successful, executing unlocking operation on the terminal.
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 (10)
1. A fingerprint unlocking method is applied to a terminal with a shell comprising a plurality of physical keys, wherein the physical keys comprise a main physical key and N auxiliary physical keys, the N auxiliary physical keys comprise at least one pair of auxiliary physical keys distributed on two sides of the main physical key, and N is a positive integer greater than or equal to 2, and the method comprises the following steps:
acquiring an electric signal corresponding to each physical key in the plurality of physical keys in the fingerprint unlocking process;
detecting whether the touch operation meets a corresponding preset threshold condition or not according to the semaphore of the electric signal corresponding to each physical key, wherein the detecting comprises the following steps:
when the electric signal corresponding to the main physical key is larger than a first preset threshold value and the electric signal corresponding to at least one auxiliary physical key of the pair of auxiliary physical keys distributed on the two sides of the main physical key is smaller than a third preset threshold value, determining that the touch operation meets the corresponding preset threshold value condition, performing fingerprint matching based on the fingerprint acquired on the main physical key, and if the matching is successful, executing unlocking operation on the terminal;
when the electric signal corresponding to the main physical key is larger than the first preset threshold value, and both the electric signal corresponding to the auxiliary physical key on the first side of the main physical key and the electric signal corresponding to the auxiliary physical key on the second side of the main physical key are larger than a second preset threshold value, determining that the touch operation does not meet the corresponding preset threshold value condition, and not responding to the touch operation;
the first preset threshold and the second preset threshold are both larger than or equal to the third preset threshold, the second side is located opposite to the first side, and the magnitude of the semaphore of the electric signal corresponding to each physical key is in direct proportion to the touch area of the user on the physical key.
2. The method according to claim 1, wherein the detecting whether the touch operation satisfies the corresponding preset threshold condition according to the semaphore of the electrical signal corresponding to each physical key further comprises:
and if the electric signal corresponding to the main physical key is larger than the first preset threshold, the electric signal corresponding to the auxiliary physical key on the first side of the main physical key is larger than the second preset threshold, and the electric signal corresponding to the auxiliary physical key on the second side of the main physical key is smaller than the third preset threshold, determining that the touch operation meets the corresponding preset threshold condition.
3. The method according to claim 1, wherein the detecting whether the touch operation satisfies the corresponding preset threshold condition according to the semaphore of the electrical signal corresponding to each physical key further comprises:
and if the electric signal corresponding to the main physical key is larger than the first preset threshold, the electric signal corresponding to the auxiliary physical key on the first side of the main physical key and the electric signal corresponding to the auxiliary physical key on the second side of the main physical key are both smaller than the third preset threshold, and the touch operation is determined to meet the corresponding preset threshold condition.
4. The method of claim 1, wherein the N is 2, 2 auxiliary physical keys are symmetrically distributed on the left side and the right side of the main physical key, or the 2 auxiliary physical keys are symmetrically distributed on the upper side and the lower side of the main physical key.
5. The utility model provides a fingerprint unlocking device, its characterized in that, fingerprint unlocking device is applied to the terminal that includes a plurality of physical buttons on the shell, a plurality of physical buttons include a main physical button and a N and assist the physical button, a N is assisted the physical button including at least a pair of distribution in the assistance of main physical button both sides, N is for being more than or equal to 2 positive integer, the device includes:
the acquisition module is used for acquiring the electric signal corresponding to each physical key in the plurality of physical keys in the fingerprint unlocking process;
the detection module is configured to detect whether the touch operation meets a corresponding preset threshold condition according to the semaphore, acquired by the acquisition module, of the electrical signal corresponding to each physical key, and includes: when the electric signal corresponding to the main physical key is larger than a first preset threshold value and the electric signal corresponding to at least one auxiliary physical key of the pair of auxiliary physical keys distributed on the two sides of the main physical key is smaller than a third preset threshold value, determining that the touch operation meets the corresponding preset threshold value condition; when the electric signal corresponding to the main physical key is larger than the first preset threshold value, and both the electric signal corresponding to the auxiliary physical key on the first side of the main physical key and the electric signal corresponding to the auxiliary physical key on the second side of the main physical key are larger than a second preset threshold value, determining that the touch operation does not meet the corresponding preset threshold value condition; the first preset threshold and the second preset threshold are both larger than or equal to the third preset threshold, the second side is located opposite to the first side, and the magnitude of the semaphore of the electric signal corresponding to each physical key is in direct proportion to the touch area of a user on the physical key;
the fingerprint matching module is used for matching fingerprints based on the fingerprints acquired on the main physical key if the detection result of the detection module is that the touch operation meets the corresponding preset threshold condition; the touch control module is further used for not responding to the touch operation if the detection result of the detection module is that the touch operation does not meet the corresponding preset threshold condition;
and the unlocking module is used for executing unlocking operation on the terminal if the fingerprint matching result of the fingerprint matching module is successful in matching.
6. The apparatus of claim 5, wherein the detection module is configured to:
and if the electric signal corresponding to the main physical key is larger than the first preset threshold, the electric signal corresponding to the auxiliary physical key on the first side of the main physical key is larger than a second preset threshold, and the electric signal corresponding to the auxiliary physical key on the second side of the main physical key is smaller than a third preset threshold, determining that the touch operation meets the corresponding preset threshold condition.
7. The apparatus of claim 5, wherein the detection module is configured to:
and if the electric signal corresponding to the main physical key is larger than the first preset threshold, the electric signal corresponding to the auxiliary physical key on the first side of the main physical key and the electric signal corresponding to the auxiliary physical key on the second side of the main physical key are both smaller than the third preset threshold, and the touch operation is determined to meet the corresponding preset threshold condition.
8. The apparatus of claim 5, wherein the N is 2, 2 auxiliary physical keys are symmetrically distributed on the left side and the right side of the main physical key, or 2 auxiliary physical keys are symmetrically distributed on the upper side and the lower side of the main physical key.
9. A fingerprint unlocking device, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
in the fingerprint unlocking process, acquiring an electric signal corresponding to each physical key in a plurality of physical keys, wherein the plurality of physical keys comprise a main physical key and N auxiliary physical keys, the N auxiliary physical keys comprise at least one pair of auxiliary physical keys distributed on two sides of the main physical key, and N is a positive integer greater than or equal to 2;
detecting whether the touch operation meets a corresponding preset threshold condition or not according to the semaphore of the electric signal corresponding to each physical key, wherein the detecting comprises the following steps: when the electric signal corresponding to the main physical key is larger than a first preset threshold value and the electric signal corresponding to at least one auxiliary physical key of the pair of auxiliary physical keys distributed on the two sides of the main physical key is smaller than a third preset threshold value, determining that the touch operation meets the corresponding preset threshold value condition, performing fingerprint matching based on the fingerprint acquired on the main physical key, and if the matching is successful, performing unlocking operation on the terminal;
when the electric signal corresponding to the main physical key is larger than the first preset threshold value, and both the electric signal corresponding to the auxiliary physical key on the first side of the main physical key and the electric signal corresponding to the auxiliary physical key on the second side of the main physical key are larger than a second preset threshold value, determining that the touch operation does not meet the corresponding preset threshold value condition, and not responding to the touch operation;
the first preset threshold and the second preset threshold are both larger than or equal to the third preset threshold, the second side is located opposite to the first side, and the magnitude of the semaphore of the electric signal corresponding to each physical key is in direct proportion to the touch area of the user on the physical key.
10. A computer-readable storage medium storing at least one instruction which, when executed by a processor, implements the fingerprint unlocking method of any one of claims 1 to 4.
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| CN108241426A (en) * | 2016-12-26 | 2018-07-03 | 北京小米移动软件有限公司 | Unlocked by fingerprint method and device |
| CN107491677A (en) | 2017-08-15 | 2017-12-19 | 北京小米移动软件有限公司 | Fingerprint recognition processing method, device, equipment and storage medium |
| CN108959885B (en) * | 2018-06-27 | 2023-10-20 | 北京小米移动软件有限公司 | Terminal, control method for terminal, manufacturing method for terminal, and storage medium |
| CN109885237A (en) * | 2019-02-28 | 2019-06-14 | 努比亚技术有限公司 | Prevent fingerprint method, mobile terminal and storage medium that accidentally touching unlocks |
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| CN104537366A (en) * | 2015-01-07 | 2015-04-22 | 小米科技有限责任公司 | Touch key and fingerprint identification implementation method and device and terminal equipment |
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| CN105117086A (en) * | 2015-09-11 | 2015-12-02 | 小米科技有限责任公司 | Fingerprint recognition system, fingerprint recognition realizing method and device and electronic equipment |
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| CN104615258A (en) * | 2013-11-05 | 2015-05-13 | 联想(北京)有限公司 | Keyboard, electronic equipment and control method |
| CN104537366A (en) * | 2015-01-07 | 2015-04-22 | 小米科技有限责任公司 | Touch key and fingerprint identification implementation method and device and terminal equipment |
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