CN106066953B

CN106066953B - Fingerprint unlocking control method and terminal equipment

Info

Publication number: CN106066953B
Application number: CN201610368309.5A
Authority: CN
Inventors: 张海平; 周意保
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2016-05-27
Filing date: 2016-05-27
Publication date: 2019-12-27
Anticipated expiration: 2036-05-27
Also published as: CN106066953A

Abstract

The embodiment of the invention discloses a fingerprint unlocking control method and terminal equipment, and takes the implementation of the method as an example, and the method comprises the following steps: monitoring external environment information of a fingerprint acquisition device of a terminal device, and predicting whether a fingerprint unlocking requirement exists according to the external environment information; if the fingerprint unlocking requirement is predicted, acquiring registered fingerprint blocks, and recovering according to the registered fingerprint blocks to obtain registered fingerprints; the enrolled fingerprint blocks comprise at least two blocks of at least an enrolled fingerprint; and collecting fingerprint data through the fingerprint collecting equipment, and comparing the fingerprint data with the registered fingerprint. The registered fingerprint is restored in advance by predicting the possible fingerprint unlocking behavior of the user, and the restoring process of the registered fingerprint and the fingerprint acquisition flow are processed in parallel, so that the time from fingerprint data acquisition to comparison completion is saved, the unlocking time can be shortened, and the fingerprint unlocking efficiency can be improved.

Description

Fingerprint unlocking control method and terminal equipment

Technical Field

The invention relates to the technical field of computers, in particular to a fingerprint unlocking control method and terminal equipment.

Background

The fingerprint image is data of a fingerprint as a carrier in the form of an image. The fingerprint is the line formed by concave-convex skin on the finger abdomen at the tail end of the human finger. The fingerprint can increase friction when the hand contacts the object, thereby being easier to exert force and grasp the object. It is naturally formed in the human evolutionary process. The fingerprint is the line formed by the concave-convex skin on the finger abdomen at the tail end of the human finger, and the fingerprint of a person is combined with the heredity and the environment and is closely related to the health of the human body, so that the fingerprint is different among people, and the fingerprint repetition rate is extremely low and is about 150 parts per billion, so the fingerprint is called as a human body identity card. It is based on such characteristics of fingerprints that fingerprints are widely used as information for identity authentication.

For example, fingerprint identification technology has become the standard matching of the flagship model of the mainstream mobile terminal manufacturer. The fingerprint identification can be used for unlocking, awakening and other functions of the mobile terminal and is an important ring for mobile payment. Fingerprint payment also puts forward higher requirement to the security when satisfying user's convenience.

The fingerprint identification process comprises the following steps: extracting features, saving data and image matching.

After an original fingerprint image of a human fingerprint is read by fingerprint reading equipment, matching with a pre-stored registered fingerprint template by characteristic points; for the registered fingerprints with higher security requirements, the registered fingerprints are stored in different memories in a blocking mode, so that the registered fingerprints need to be recombined in blocks to obtain a complete registered fingerprint before feature point matching; and unlocking after the matching is successful. The time required for the device to successfully unlock from reading the fingerprint image is referred to as the unlock time.

The speed of the unlocking time directly affects the efficiency of the user in using the device, especially for some more sensitive waiting time. How to shorten the unlocking time becomes an important direction for the research of technicians from improving the fingerprint unlocking efficiency.

Disclosure of Invention

The embodiment of the invention provides a fingerprint unlocking control method and terminal equipment, which are used for improving fingerprint unlocking efficiency.

On one hand, the embodiment of the invention provides a fingerprint unlocking control method, which comprises the following steps:

monitoring external environment information of a fingerprint acquisition device of a terminal device, and predicting whether a fingerprint unlocking requirement exists according to the external environment information;

if the fingerprint unlocking requirement is predicted, acquiring registered fingerprint blocks, and recovering according to the registered fingerprint blocks to obtain registered fingerprints; the enrolled fingerprint blocks comprise at least two blocks of at least an enrolled fingerprint;

and collecting fingerprint data through the fingerprint collecting equipment, and comparing the fingerprint data with the registered fingerprint.

In a possible implementation manner, the monitoring external environment information of the fingerprint acquisition device of the terminal device, and predicting whether there is a fingerprint unlocking demand according to the external environment information includes:

whether a finger is close to the fingerprint acquisition equipment is detected through a distance sensor of the terminal equipment, and if the finger is close to the fingerprint acquisition equipment, the fingerprint unlocking requirement is predicted.

In one possible implementation, before the acquiring the enrolled fingerprint blocks, the method further includes:

and monitoring the state information of the target application in the terminal equipment, and predicting whether a fingerprint unlocking requirement exists or not according to the state information of the target application.

In a possible implementation manner, after recovering the enrolled fingerprint from the enrolled fingerprint blocks, the method further includes:

if the fingerprint data aiming at the registered fingerprint is not received within a preset time period, deleting the registered fingerprint;

or if the fingerprint data aiming at the registered fingerprint is not received in a preset time period, splitting the registered fingerprint into registered fingerprint blocks, and respectively storing the registered fingerprint blocks obtained by splitting into different storage spaces, or storing the registered fingerprint blocks obtained by splitting into storage spaces with continuous addresses in a random sequence.

In a possible implementation manner, before obtaining the enrolled fingerprint partition and recovering the enrolled fingerprint according to the enrolled fingerprint partition, the method further includes:

acquiring the current position information of the terminal equipment, determining the security level corresponding to the current position information, if the security level is higher than a preset level, executing the acquisition of the registered fingerprint blocks, and recovering to obtain the registered fingerprint according to the registered fingerprint blocks.

In a possible implementation manner, before the obtaining of the current location information of the terminal device, the method further includes:

counting historical position information of the terminal equipment, and recording that the higher the occurrence frequency in the historical position information, the higher the corresponding safety level of the position information;

alternatively, location information setting information including location information and a security level corresponding to the location information is received.

In another aspect, an embodiment of the present invention further provides a terminal device, including:

the information monitoring unit is used for monitoring external environment information of the fingerprint acquisition equipment of the terminal equipment;

the demand prediction unit is used for predicting whether a fingerprint unlocking demand exists according to the external environment information;

the fingerprint recovery unit is used for acquiring registered fingerprint blocks if the demand prediction unit predicts that the fingerprint unlocking demand exists, and recovering the registered fingerprint according to the registered fingerprint blocks; the enrolled fingerprint blocks comprise at least two blocks of at least an enrolled fingerprint;

the fingerprint acquisition equipment is used for acquiring fingerprint data through the fingerprint acquisition equipment;

and the fingerprint comparison unit is used for comparing the fingerprint data with the registered fingerprint.

In a possible implementation manner, the information monitoring unit is specifically configured to detect whether a finger is close to the fingerprint acquisition device through a distance sensor of the terminal device;

the demand prediction unit is specifically configured to predict that there is a fingerprint unlocking demand if a finger is close to the fingerprint acquisition device.

In a possible implementation manner, the information monitoring unit is further configured to monitor state information of a target application in the terminal device before the fingerprint recovery unit acquires the registered fingerprint block;

the demand prediction unit is further used for predicting whether a fingerprint unlocking demand exists or not through the state information of the target application.

In a possible implementation manner, the terminal device further includes:

the security control unit is used for deleting the registered fingerprint if the fingerprint acquisition equipment does not receive fingerprint data aiming at the registered fingerprint in a preset time period after the fingerprint recovery unit recovers the registered fingerprint according to the registered fingerprint blocks;

or, the security control unit is configured to, after the fingerprint recovery unit recovers the registered fingerprint according to the registered fingerprint blocks, split the registered fingerprint into the registered fingerprint blocks if the fingerprint acquisition device does not receive fingerprint data for the registered fingerprint within a predetermined time period, and store the split registered fingerprint blocks into different storage spaces respectively, or store the split registered fingerprint blocks into storage spaces with consecutive addresses in a random order.

In a possible implementation manner, the terminal device further includes:

a position obtaining unit, configured to obtain current position information of the terminal device before the fingerprint recovering unit obtains the registered fingerprint blocks and recovers the registered fingerprint according to the registered fingerprint blocks;

the level determining unit is used for determining the safety level corresponding to the current position information;

and the fingerprint recovery unit is used for executing the acquisition of the registered fingerprint blocks if the security level is higher than a preset level, and recovering to obtain the registered fingerprint according to the registered fingerprint blocks.

In a possible implementation manner, the terminal device further includes:

the position counting unit is used for counting the historical position information of the terminal equipment before the current position information of the terminal equipment is obtained, and recording that the higher the occurrence frequency of the historical position information is, the higher the corresponding safety level of the position information is;

or, the terminal device further includes: the mobile terminal includes a level receiving unit configured to receive position information setting information including position information and a security level corresponding to the position information.

Embodiments of the present invention in three aspects further provide a terminal device, including: the fingerprint acquisition device is used for acquiring fingerprint data; the processor is configured to execute any one of the methods provided by the embodiments of the present invention.

According to the technical scheme, the embodiment of the invention has the following advantages: the registered fingerprint is restored in advance by predicting the possible fingerprint unlocking behavior of the user, and the restoring process of the registered fingerprint and the fingerprint acquisition flow are processed in parallel, so that the time from fingerprint data acquisition to comparison completion is saved, the unlocking time can be shortened, and the fingerprint unlocking efficiency can be improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic flow chart of a method according to an embodiment of the present invention;

FIG. 2 is a schematic flow chart of a method according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

An embodiment of the present invention provides a fingerprint unlocking control method, as shown in fig. 1, including:

101: monitoring external environment information of a fingerprint acquisition device of the terminal device, and predicting whether a fingerprint unlocking requirement exists according to the external environment information;

in the embodiment of the invention, the external environment information is external environment information of the fingerprint acquisition equipment, and the external environment information is used for predicting whether a fingerprint unlocking requirement exists; generally speaking, whether an object is close to the fingerprint acquisition device or whether all fingers are close to the fingerprint acquisition device; depending on which sensor is specifically used, and whether the data collected by the sensor can be analyzed by the terminal device to obtain more detailed external environment information for determining whether there is a fingerprint unlocking requirement.

102: if the fingerprint unlocking requirement is predicted, acquiring registered fingerprint blocks, and recovering according to the registered fingerprint blocks to obtain registered fingerprints; the registered fingerprint blocks comprise at least two blocks of at least registered fingerprints;

in this embodiment, the registered fingerprint blocks are obtained by blocking the registered fingerprint, and the registered fingerprint blocks may be stored separately after being blocked by the fingerprint image, or may be stored in other data after being converted into other data; detailed description of the preferred embodimentsthe embodiments of the present invention are not to be considered as being limited solely to the embodiments shown. The registered fingerprint may be a registered fingerprint of an unlock screen or a registered fingerprint of the target application; the former is usually the terminal device in the screen locking state, and the latter is the terminal device in the screen lightening state. If the registered fingerprint used in the terminal to unlock the screen lock is the same as the registered fingerprint used by the target application, the two are identical in execution result.

In addition, after the fingerprint is registered and partitioned, encryption processing can be carried out, and the fingerprint can be stored in different storage spaces or can be randomly scrambled and then stored in continuous storage spaces. Based on different blocking modes and storage modes, the implementation mode of how to recover the registered fingerprint needs to be recorded in the terminal device, for example: with the implementation scheme of random scrambling and then storing the random scrambled fingerprint into a continuous storage space, the way of recovering the registered fingerprint can be: the size of each fingerprint block, the start and end positions of the continuous storage space, and the original sequence information of each fingerprint block are recorded. The embodiment of the invention does not uniquely limit the implementation scheme of recovering the original registered fingerprint.

103: and collecting fingerprint data through the fingerprint collecting equipment, and comparing the fingerprint data with the registered fingerprint.

In this embodiment, the fingerprint acquisition device is a functional module having the function of acquiring fingerprint data; the process of comparing the fingerprint data with the registered fingerprint can adopt the existing fingerprint verification mode of the target, and the embodiment of the invention is not repeated.

According to the embodiment of the invention, the registered fingerprint is restored in advance by predicting the possible fingerprint unlocking behavior of the user, so that the restoring process of the registered fingerprint and the fingerprint acquisition flow are processed in parallel, the time from fingerprint data acquisition to comparison completion is saved, and the unlocking time can be shortened, and the fingerprint unlocking efficiency is improved.

The embodiment of the invention also provides an implementation scheme for predicting whether the fingerprint unlocking requirement exists according to the external environment information of the fingerprint acquisition equipment, which comprises the following steps: the external environment information of the fingerprint acquisition device of the monitoring terminal device predicts whether the fingerprint unlocking requirement exists according to the external environment information and comprises the following steps:

whether a finger is close to the fingerprint acquisition equipment or not is detected through the distance sensor of the terminal equipment, and if the finger is close to the fingerprint acquisition equipment, the fingerprint unlocking requirement is predicted.

In the present embodiment, a distance sensor is mainly used; in addition, to determine whether the finger or another object, for example: infrared sensors or other sensors. Wherein the infrared sensor can detect the temperature of the near object, and obtain the profile information of the near object based on the temperature difference between the temperature of the near object and the ambient temperature, and determine the type of the object according to the profile information, such as: a finger, or other object. The distance sensor can independently determine the shape of the object if the distance acquisition capability of the three-dimensional space exists; or the distance sensor can also determine the shape of the object through a large amount of two-dimensional distance information, and accordingly determine whether the object is likely to be a finger. How a finger is determined to be in proximity to the fingerprint acquisition device embodiments of the present invention are not intended to be limiting. In the embodiment of the invention, the behavior of fingerprint unlocking to be generated can be accurately predicted by determining the behavior of the finger approaching the fingerprint sensor, so that the embodiment of the invention can be executed more efficiently.

Besides predicting whether a fingerprint unlocking requirement exists through environment information outside the fingerprint sensor, the embodiment of the invention also provides other prediction schemes, which are as follows: before the obtaining of the enrolled fingerprint partition, the method further includes:

In this embodiment, the target application may be any application installed in the terminal device; in addition, since the registered fingerprint corresponding to the important application is usually stored after being partitioned, not all registered fingerprints are stored after being partitioned, and thus the target application in this embodiment may be an application corresponding to the partitioned registered fingerprint. The purpose of the state information is to predict whether the user may unlock the information used by the application, and different state information may be selected according to different prediction modes. For example: instant messaging software or other software such as stock software, etc., may employ monitoring for receipt of new messages; alternatively, other applications may have status information such as important system prompts to generate. Therefore, any information capable of predicting that the target application is likely to be unlocked can be classified as state information, and the information is not limited uniquely by the embodiment of the invention.

In addition, external environment information and state information may be considered as the determination conditions, specifically as follows: the method comprises the steps of monitoring external environment information of fingerprint acquisition equipment of the terminal equipment and state information of target applications in the terminal equipment, and predicting whether fingerprint unlocking needs exist according to the external environment information and the state information of the target applications.

The embodiment of the invention also provides an implementation scheme for restoring the registered fingerprint into the registered fingerprint blocks, which comprises the following specific steps: after recovering the registered fingerprint according to the registered fingerprint blocks, the method further includes:

if the fingerprint data aiming at the registered fingerprint is not received in a preset time period, deleting the registered fingerprint;

or if the fingerprint data of the registered fingerprint is not received in a preset time period, splitting the registered fingerprint into the registered fingerprint blocks, and respectively storing the registered fingerprint blocks obtained by splitting into different storage spaces, or storing the registered fingerprint blocks obtained by splitting into storage spaces with continuous addresses in a random sequence.

Because the application for storing the registered fingerprint in the block mode has higher safety requirement, if the registered fingerprint stored in the block mode is in the non-block state for a long time, higher risk can be brought, and therefore the embodiment of the invention provides a scheme for re-blocking. The predetermined time period may be set empirically, and specific values are not limited uniquely in the embodiments of the present invention. In the above implementation schemes, the former scheme directly deletes the recovered registered fingerprint, and in this case, the registered fingerprint blocks are still stored in the storage device, and subsequent recovery of the registered fingerprint is not affected; the latter implementation may be generally applied to an application scenario in which, after restoring the enrolled fingerprint, the original enrolled fingerprint blocks have been deleted. One of the modes can be selected to be implemented based on different application implementations, which is not limited uniquely in the embodiments of the present invention.

The embodiment of the invention further provides an implementation scheme for improving the fingerprint unlocking efficiency, which comprises the following specific steps: before obtaining the registered fingerprint blocks and recovering the registered fingerprint according to the registered fingerprint blocks, the method further includes:

In this embodiment, the current location information of the terminal device may be geographical coordinate location information where the terminal device is located, or may be that the terminal device indicated by the geographical location information of the terminal device is located in a user's house, an office, or any other area that is often located, and these areas do not depart from the category of the area commonly used by the user, and are generally safer.

Based on the foregoing, the location of the terminal device is related to its security, and if the user frequently goes, for example: the home of the user; the environment in which the terminal device is used is relatively secure, and in this case, it is also relatively secure that the registered fingerprint can be restored in advance.

The embodiment of the invention also provides a specific implementation scheme for determining the security level corresponding to the position information, which comprises the following steps: before the obtaining of the current location information of the terminal device, the method further includes:

counting the historical position information of the terminal equipment, and recording that the higher the occurrence frequency of the historical position information, the higher the corresponding safety level of the position information;

alternatively, the position information setting information is received, and the position information setting information includes position information and a security level corresponding to the position information.

In the two modes of determining the safety level corresponding to the position information, the former mode is automatically completed by using a machine learning mode, and after the historical position information is accumulated, the safety level corresponding to the position information can be determined more accurately, so that the method is accurate and convenient; in the latter manner, specific locations that are considered safe may be set by the user to better embody the user's subjective perception, which may be more appropriate for certain specific users. In both of the above two implementation manners, in order to determine that some geographic locations are considered as a safer application environment, a fingerprint unlocking algorithm with lower complexity can be correspondingly used; if other ways are adopted to achieve the technical purpose, the implementation of the embodiment of the present invention is not affected, and therefore the above examples should not be construed as the only limitations to the embodiment of the present invention.

The embodiment of the invention also provides another more detailed method flow, which is exemplified by a mobile phone, and in addition, the state information of the target application is exemplified by the message received by the instant messaging software; as shown in fig. 2, includes:

201: the mobile phone monitors whether a finger is close to the fingerprint acquisition equipment of the mobile phone, if so, the fingerprint unlocking requirement is determined, and if so, the process enters 202; otherwise, continue execution 201;

or, monitoring whether the instant communication software in the mobile phone receives a new message, and if the instant communication software receives the new message, determining that a fingerprint unlocking requirement exists; if so, entering 202; otherwise, continue execution 201;

the step can be executed periodically, and the specific time period can be set according to experience; wherein the shorter the time period, the more sensitive the monitoring result, and the longer the monitoring time, the more power saving.

202: acquiring current position information of the mobile phone, determining whether the security level corresponding to the current position information is higher than a preset threshold value, if so, entering 203, and otherwise, ending the process; or to 201;

203: acquiring registered fingerprint blocks and restoring the registered fingerprint blocks into registered fingerprints;

204: collecting fingerprint data, determining whether the fingerprint data is collected, and if not, entering 205; if so, go to 206;

205: restoring the registered fingerprint to a state of block storage;

206: and comparing the registered fingerprint with the fingerprint data.

It can be understood that if the comparison result is that the comparison is passed, the operation instruction requested by the fingerprint data is executed, otherwise, the operation instruction is refused to be executed, or the fingerprint data is collected again.

In this embodiment, in order to improve the security of the registered fingerprint, the registered fingerprint is divided into a plurality of registered fingerprint blocks, the registered fingerprint blocks are stored in different storage spaces respectively, and when the fingerprint verification is required, the registered fingerprint blocks are extracted from different storage spaces and combined to obtain a complete registered fingerprint, and then the fingerprint verification is performed. In order to improve the fingerprint verification speed, the embodiment of the invention detects that a user finger is close to a fingerprint acquisition device (fingerprint input area) through the distance sensor, determines that the fingerprint unlocking requirement exists, extracts the registered fingerprint blocks from each storage space to obtain a complete registered fingerprint, and can directly verify the complete registered fingerprint and the fingerprint data input by the user when detecting the fingerprint data input by the user. Under the condition that the registered fingerprint blocks exist, the fingerprint unlocking requirement of the user is predicted, and the combination of the registered fingerprint blocks (namely, the registered fingerprint is recovered) and the fingerprint data acquisition and processing are processed in parallel, so that the fingerprint verification speed is improved, and the fingerprint unlocking speed can be correspondingly improved.

An example of the present invention further provides a terminal device, as shown in fig. 3, including:

the information monitoring unit 301 is used for monitoring external environment information of the fingerprint acquisition device of the terminal device;

a demand prediction unit 302, configured to predict whether there is a demand for unlocking a fingerprint according to the external environment information;

a fingerprint recovery unit 303, configured to obtain a registered fingerprint block if the demand prediction unit 302 predicts that there is a fingerprint unlocking demand, and recover to obtain a registered fingerprint according to the registered fingerprint block; the registered fingerprint blocks comprise at least two blocks of at least registered fingerprints;

a fingerprint acquisition device 304 for acquiring fingerprint data by the fingerprint acquisition device 304;

a fingerprint comparison unit 305, configured to compare the fingerprint data with the registered fingerprint.

The embodiment of the invention also provides an implementation scheme for predicting whether the fingerprint unlocking requirement exists according to the external environment information of the fingerprint acquisition equipment, which comprises the following steps: the information monitoring unit 301 is specifically configured to detect whether a finger is close to the fingerprint acquisition device 304 through a distance sensor of the terminal device;

the requirement prediction unit 302 is specifically configured to predict that there is a requirement for unlocking a fingerprint if a finger is close to the fingerprint acquisition device 304.

Besides predicting whether a fingerprint unlocking requirement exists through environment information outside the fingerprint sensor, the embodiment of the invention also provides other prediction schemes, which are as follows: the information monitoring unit 301 is further configured to monitor state information of a target application in the terminal device before the fingerprint recovery unit 303 acquires the registered fingerprint block;

the requirement prediction unit 302 is further configured to predict whether there is a requirement for fingerprint unlocking according to the state information of the target application.

The embodiment of the invention also provides an implementation scheme for restoring the registered fingerprint into the registered fingerprint blocks, which comprises the following specific steps: further, as shown in fig. 4, the terminal device further includes:

a security control unit 401, configured to delete the registered fingerprint if the fingerprint acquisition device 304 does not receive fingerprint data for the registered fingerprint within a predetermined time period after the fingerprint recovery unit 303 recovers the registered fingerprint according to the registered fingerprint blocks;

or, the security control unit 401 is configured to, after the fingerprint recovery unit 303 recovers the registered fingerprint according to the registered fingerprint blocks, split the registered fingerprint into the registered fingerprint blocks if the fingerprint acquisition device 304 does not receive fingerprint data for the registered fingerprint within a predetermined time period, and store the split registered fingerprint blocks into different storage spaces respectively, or store the split registered fingerprint blocks into storage spaces with consecutive addresses in a random order.

The embodiment of the invention further provides an implementation scheme for improving the fingerprint unlocking efficiency, which comprises the following specific steps: further, as shown in fig. 5, the terminal device further includes:

a location obtaining unit 501, configured to obtain current location information of the terminal device before the fingerprint recovering unit 303 obtains the registered fingerprint blocks and recovers the registered fingerprint according to the registered fingerprint blocks;

a level determination unit 502 configured to determine a security level corresponding to the current location information;

the fingerprint recovering unit 303 is configured to, if the security level is higher than a predetermined level, perform the acquiring of the registered fingerprint block, and recover to obtain the registered fingerprint according to the registered fingerprint block.

The embodiment of the invention also provides a specific implementation scheme for determining the security level corresponding to the position information, which comprises the following steps: further, as shown in fig. 6, the terminal device further includes:

a location counting unit 601, configured to count historical location information of the terminal device before the current location information of the terminal device is obtained, and record that a security level corresponding to location information with a higher occurrence frequency in the historical location information is higher;

alternatively, as shown in fig. 7, the terminal device further includes:

the level receiving unit 701 is configured to receive position information setting information including position information and a security level corresponding to the position information.

An embodiment of the present invention further provides another terminal device, as shown in fig. 8, including: a processor 801 and a memory 802; wherein the memory 802 can be used for a cache required by the processor 801 to perform data processing, and can also be used for providing a storage space for data called by the processor 801 to perform data processing and obtained result data; as an optional module, the terminal device may further include a fingerprint acquisition device 803; it should be noted that, if the fingerprint image to be processed is a fingerprint image acquired from another device, the local terminal device may not have the fingerprint acquisition device 803;

the processor 801 is configured to monitor external environment information of a fingerprint acquisition device of a terminal device, and predict whether there is a fingerprint unlocking requirement according to the external environment information; if the fingerprint unlocking requirement is predicted, acquiring registered fingerprint blocks, and recovering according to the registered fingerprint blocks to obtain registered fingerprints; the registered fingerprint blocks comprise at least two blocks of at least registered fingerprints; and collecting fingerprint data through the fingerprint collecting equipment, and comparing the fingerprint data with the registered fingerprint.

The embodiment of the invention also provides an implementation scheme for predicting whether the fingerprint unlocking requirement exists according to the external environment information of the fingerprint acquisition equipment, which comprises the following steps: the processor 801 is configured to monitor external environment information of a fingerprint acquisition device of a terminal device, and predicting whether there is a fingerprint unlocking requirement according to the external environment information includes:

and the distance sensor is used for detecting whether a finger is close to the fingerprint acquisition equipment or not, and if the finger is close to the fingerprint acquisition equipment, the fingerprint unlocking requirement is predicted.

Besides predicting whether a fingerprint unlocking requirement exists through environment information outside the fingerprint sensor, the embodiment of the invention also provides other prediction schemes, which are as follows: the processor 801 is further configured to monitor state information of a target application in the terminal device before the obtaining of the registered fingerprint block, and predict whether there is a fingerprint unlocking requirement according to the state information of the target application.

The embodiment of the invention also provides an implementation scheme for restoring the registered fingerprint into the registered fingerprint blocks, which comprises the following specific steps: the processor 801 is further configured to delete the registered fingerprint if the fingerprint data for the registered fingerprint is not received within a predetermined time period after the registered fingerprint is recovered according to the registered fingerprint blocks;

The embodiment of the invention further provides an implementation scheme for improving the fingerprint unlocking efficiency, which comprises the following specific steps: the processor 801 is further configured to, before obtaining the registered fingerprint partition and recovering obtaining the registered fingerprint according to the registered fingerprint partition, obtain current location information of the terminal device, determine a security level corresponding to the current location information, if the security level is higher than a predetermined level, execute the obtaining of the registered fingerprint partition, and recover obtaining the registered fingerprint according to the registered fingerprint partition.

The embodiment of the invention also provides a specific implementation scheme for determining the security level corresponding to the position information, which comprises the following steps: the processor 801 is further configured to count historical location information of the terminal device before the current location information of the terminal device is obtained, and record that a security level corresponding to location information with a higher frequency of occurrence in the historical location information is higher;

As shown in fig. 9, for convenience of description, only the parts related to the embodiment of the present invention are shown, and details of the specific technology are not disclosed, please refer to the method part in the embodiment of the present invention. The terminal may be any terminal device including a mobile phone, a tablet computer, a PDA (Personal Digital Assistant), a POS (Point of Sales), a vehicle-mounted computer, etc., taking the terminal as the mobile phone as an example:

fig. 9 is a block diagram showing a partial structure of a mobile phone related to a terminal provided by an embodiment of the present invention. Referring to fig. 9, the handset includes: radio Frequency (RF) circuit 910, memory 920, input unit 930, display unit 940, sensor 950, audio circuit 960, wireless fidelity (WiFi) module 970, processor 980, and power supply 990. Those skilled in the art will appreciate that the handset configuration shown in fig. 9 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

The following describes each component of the mobile phone in detail with reference to fig. 9:

the RF circuit 910 may be used for receiving and transmitting signals during information transmission and reception or during a call, and in particular, for receiving downlink information of a base station and then processing the received downlink information to the processor 980; in addition, the data for designing uplink is transmitted to the base station. In general, the RF circuit 910 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, the RF circuit 910 may also communicate with networks and other devices via wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to global system for Mobile communications (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Messaging Service (SMS), and the like.

The memory 920 may be used to store software programs and modules, and the processor 980 may execute various functional applications and data processing of the mobile phone by operating the software programs and modules stored in the memory 920. The memory 920 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 920 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The input unit 930 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the cellular phone. Specifically, the input unit 930 may include a touch panel 931 and other input devices 932. The touch panel 931, also referred to as a touch screen, may collect a touch operation performed by a user on or near the touch panel 931 (e.g., a user's operation on or near the touch panel 931 using a finger, a stylus, or any other suitable object or accessory), and drive a corresponding connection device according to a preset program. Alternatively, the touch panel 931 may include two parts, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 980, and can receive and execute commands sent by the processor 980. In addition, the touch panel 931 may be implemented by various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. The input unit 930 may include other input devices 932 in addition to the touch panel 931. In particular, other input devices 932 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.

The display unit 940 may be used to display information input by the user or information provided to the user and various menus of the mobile phone. The display unit 940 may include a display panel 941, and optionally, the display panel 941 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like. Further, the touch panel 931 may cover the display panel 941, and when the touch panel 931 detects a touch operation on or near the touch panel 931, the touch panel transmits the touch operation to the processor 980 to determine the type of the touch event, and then the processor 980 provides a corresponding visual output on the display panel 941 according to the type of the touch event. Although in fig. 9, the touch panel 931 and the display panel 941 are two independent components to implement the input and output functions of the mobile phone, in some embodiments, the touch panel 931 and the display panel 941 may be integrated to implement the input and output functions of the mobile phone.

The handset may also include at least one sensor 950, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor that adjusts the brightness of the display panel 941 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 941 and/or backlight when the mobile phone is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.

Audio circuitry 960, speaker 961, microphone 962 may provide an audio interface between a user and a cell phone. The audio circuit 960 may transmit the electrical signal converted from the received audio data to the speaker 961, and convert the electrical signal into a sound signal for output by the speaker 961; on the other hand, the microphone 962 converts the collected sound signal into an electrical signal, converts the electrical signal into audio data after being received by the audio circuit 960, and outputs the audio data to the processor 980 for processing, and then transmits the audio data to, for example, another mobile phone through the RF circuit 910, or outputs the audio data to the memory 920 for further processing.

WiFi belongs to short-distance wireless transmission technology, and the mobile phone can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 970, and provides wireless broadband Internet access for the user. Although fig. 9 shows the WiFi module 970, it is understood that it does not belong to the essential constitution of the handset, and can be omitted entirely as needed within the scope not changing the essence of the invention.

The processor 980 is a control center of the mobile phone, connects various parts of the entire mobile phone by using various interfaces and lines, and performs various functions of the mobile phone and processes data by operating or executing software programs and/or modules stored in the memory 920 and calling data stored in the memory 920, thereby integrally monitoring the mobile phone. Alternatively, processor 980 may include one or more processing units; preferably, the processor 980 may integrate an application processor, which primarily handles operating systems, user interfaces, applications, etc., and a modem processor, which primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 980.

The handset also includes a power supply 990 (e.g., a battery) for supplying power to the various components, which may preferably be logically connected to the processor 980 via a power management system, thereby providing management of charging, discharging, and power consumption via the power management system.

Although not shown, the mobile phone may further include a camera, a bluetooth module, etc., which are not described herein.

In the foregoing embodiment, the method flows of the steps may be implemented based on the structure of the terminal device. Wherein the sensor 950 or the touch panel 931 may be used as a fingerprint acquisition device.

It should be noted that, in the terminal device embodiment, each included unit is only divided according to functional logic, but is not limited to the above division as long as the corresponding function can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.

In addition, it is understood by those skilled in the art that all or part of the steps in the above method embodiments may be implemented by related hardware, and the corresponding program may be stored in a computer readable storage medium, where the above mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the embodiment of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A fingerprint unlocking control method is characterized by comprising the following steps:

receiving position information setting information, wherein the position information setting information comprises position information and a safety level corresponding to the position information;

monitoring whether instant communication software in the terminal equipment receives a new message or not, and predicting that a fingerprint unlocking demand exists if the instant communication software receives the new message;

if the fingerprint unlocking requirement is predicted, acquiring current position information of the terminal equipment, determining a security level corresponding to the current position information, acquiring registered fingerprint blocks if the security level corresponding to the current position information is higher than a preset level, and recovering to obtain registered fingerprints according to the registered fingerprint blocks; the enrolled fingerprint blocks comprise at least two blocks of at least an enrolled fingerprint; deleting the registered fingerprint blocks in the original storage position after the fingerprint data is recovered; the registered fingerprint blocks are stored in a memory of the terminal equipment;

collecting fingerprint data through the fingerprint collecting equipment, and if the fingerprint data aiming at the registered fingerprint is received in a preset time period, comparing the fingerprint data aiming at the registered fingerprint with the registered fingerprint;

if the fingerprint data aiming at the registered fingerprint is not received in a preset time period, the registered fingerprint is split into the registered fingerprint blocks, the registered fingerprint blocks obtained through splitting are respectively stored in different storage spaces, or the registered fingerprint blocks obtained through splitting are stored in a storage space with continuous addresses in a random sequence, and the registered fingerprint is deleted.

2. A terminal device, comprising:

a level receiving unit configured to receive position information setting information including position information and a security level corresponding to the position information;

an information monitoring unit for monitoring whether the instant communication software in the terminal equipment receives a new message,

the demand prediction unit is used for predicting that the fingerprint unlocking demand exists if the instant communication software in the terminal equipment receives a new message;

the position acquisition unit is used for acquiring the registered fingerprint blocks in the fingerprint recovery unit and acquiring the current position information of the terminal equipment before the registered fingerprint is recovered according to the registered fingerprint blocks;

the fingerprint recovery unit is used for acquiring registered fingerprint blocks and recovering to obtain registered fingerprints according to the registered fingerprint blocks if the demand prediction unit predicts that the fingerprint unlocking demand exists and the security level corresponding to the current position information is higher than a preset level; the enrolled fingerprint blocks comprise at least two blocks of at least an enrolled fingerprint; deleting the registered fingerprint blocks in the original storage position after the fingerprint data is recovered; the registered fingerprint blocks are stored in a memory of the terminal equipment;

a fingerprint comparison unit, configured to compare, if fingerprint data for the registered fingerprint is received within a predetermined time period, the fingerprint data for the registered fingerprint with the registered fingerprint;

and the safety control unit is used for splitting the registered fingerprint into the registered fingerprint blocks and storing the split registered fingerprint blocks into different storage spaces respectively if the fingerprint acquisition equipment does not receive fingerprint data aiming at the registered fingerprint in a preset time period after the fingerprint recovery unit recovers the registered fingerprint according to the registered fingerprint blocks, or storing the split registered fingerprint blocks into storage spaces with continuous addresses in a random sequence and deleting the registered fingerprint.

3. A terminal device, comprising: the fingerprint acquisition device is used for acquiring fingerprint data; the processor is configured to perform the method of claim 1.