WO2017016034A1 - Device control method based on user information identification and mobile terminal - Google Patents

Abstract

Disclosed in the present application are a device control method based on user information identification, and a mobile terminal; in applying the present application, each user can, on the basis of control preferences and habits, pre-register user information respectively required to implement control of each device, and on this basis, set up a correlation between a user name, a user information identifier, and a control function; when having a control requirement for a device, a user can directly enter corresponding user information content into a mobile terminal, and the mobile terminal, after receiving the information content entered by the user, and by means of identifying the user name and the information identifier corresponding to said information content, acquires the required control function, and generates a control command corresponding to said control function, thereby implementing the required control of the target device. Hence, the present application meets the requirements of multiple users using the same mobile terminal to implement personalised control of a smart home or Internet device, and improves the user experience.

Description

Device control method based on user information identification and mobile terminal Technical field

The invention belongs to the technical field of multi-user identification and control of a mobile terminal, and particularly relates to a device control method based on user information identification and a mobile terminal.

Background technique

With the advent of the Internet+ era and the Internet of Things era, mobile terminals such as smart phones have gradually developed into control centers for many smart home/vehicle networking devices. For example, a user can turn on a smart TV through a smartphone; or turn on a car radio through a smartphone, turn on an atmosphere light in the car, and the like.

At present, there are multiple users (such as multiple users in a family or a group) that use the same mobile terminal to personally control the requirements of devices such as smart homes and car networking, that is, based on the basic control methods provided by the mobile terminals. It is necessary to control various devices according to their different preferences and habits. For example, user A needs to enter a certain information owned by the mobile terminal to activate the smart TV, and user B needs to input the information he has. Turn on the car radio, etc. However, the prior art cannot meet the personalized control requirements of multiple users, and the user experience is poor.

Summary of the invention

In view of this, an object of the present invention is to provide a device control method based on user information identification and a mobile terminal, which aims to overcome the above problems existing in the prior art, so as to meet the multi-user personalization control of the smart home by using the same mobile terminal. The needs of devices such as the Internet.

To this end, the present invention discloses the following technical solutions:

A device control method based on user information identification is applied to a mobile terminal, and the method includes:

Receiving a control request of the user, where the control request includes content of the user information to be identified;

Identifying a target user name to which the user information content belongs, and a target information label corresponding to the user information content;

Based on the correspondence between the preset user name, the information tag, and the control function, The target user name and the target information tag acquire the target control function corresponding to the device control request; the target control function includes a device identifier of the controlled device and a control operation performed on the controlled device, and each user name corresponds to at least An information tag, each information tag corresponding to a control function;

And issuing, to the controlled device corresponding to the device identifier, a control instruction corresponding to the target control function.

In the above method, preferably, the user information content is a user fingerprint that the user inputs to the mobile terminal through the fingerprint sensor, and the target information label is a fingerprint name corresponding to the user fingerprint.

Preferably, the target user name corresponding to the user information content and the target information label corresponding to the user information content include:

The user name of the user to which the user fingerprint belongs, and the fingerprint name corresponding to the user fingerprint are identified by comparing the user fingerprint with each fingerprint template stored in the fingerprint database.

The fingerprint database is pre-stored with a fingerprint template of each registered fingerprint recorded by each registered user.

In the above method, after the target control function corresponding to the device control request is acquired by using the target user name and the target information tag, based on the correspondence between the preset user name, the information tag, and the control function, Also includes:

Identifying a target age segment corresponding to the user fingerprint;

According to the correspondence between the preset age group and the device feedback content, the target feedback content corresponding to the target age segment is obtained.

In the above method, preferably, the identifying the target age segment corresponding to the fingerprint of the user includes:

Performing preset digital signal processing on the fingerprint image of the user fingerprint; the preset digital signal processing includes: extreme value filtering, primary smoothing, sharpening, secondary smoothing, binarization, and refinement processing;

Extracting a preset key feature point in the fingerprint information obtained by the digital signal processing, and assigning a corresponding coefficient value to each extracted key feature point; wherein the preset key feature point can reflect the user age information;

The target age segment corresponding to the fingerprint of the user is obtained according to a correspondence between a pre-defined user age segment and a coefficient value of a fingerprint key feature point.

In the above method, preferably, the control instruction carries the target feedback content, so that the When the controlled device responds to the control instruction, the information is fed back to the user according to the indication of the target feedback content.

A mobile terminal includes:

a request receiving module, configured to receive a control request of the user, where the control request includes content of the user information to be identified;

An information identifying module, configured to identify a target user name to which the user information content belongs, and a target information label corresponding to the user information content;

a control function obtaining module, configured to acquire, by using the target user name and the target information tag, a target control function corresponding to the device control request, based on a preset user name, a correspondence between the information tag and the control function; The control function includes a device identifier of the controlled device and a control operation performed on the controlled device, each user name corresponding to at least one information label, and each information label corresponds to a control function;

And an instruction issuing module, configured to send a control instruction corresponding to the control function to the corresponding controlled device of the device identifier.

Preferably, the user information content is a user fingerprint entered by the user through the fingerprint sensor, and the target information label is a fingerprint name corresponding to the user fingerprint; the information identification module includes :

a fingerprint identification unit, configured to identify a user name of the user to which the user fingerprint belongs, and a fingerprint name corresponding to the user fingerprint by comparing the user fingerprint with each fingerprint template pre-stored in the fingerprint database;

The fingerprint database is pre-stored with a fingerprint template of each registered fingerprint recorded by each registered user.

The above mobile terminal, preferably, further includes a feedback content acquisition module, where the feedback content acquisition module includes:

An age information identifying unit, configured to identify a target age segment corresponding to the user fingerprint;

The feedback content obtaining unit is configured to acquire the target feedback content corresponding to the target age segment according to the correspondence between the preset age group and the device feedback content.

In the above mobile terminal, preferably, the age information identifying unit includes:

a digital signal processing subunit, configured to perform preset digital signal processing on the fingerprint image of the user fingerprint; the preset digital signal processing includes extreme value filtering, primary smoothing, sharpening, and second Smoothing, binarization and refinement;

a feature point extraction subunit, configured to extract a preset key feature point in the fingerprint information obtained by the digital signal processing, and assign a corresponding coefficient value to each extracted key feature point; wherein the preset key feature Points can reflect user age information;

The age segment acquisition sub-unit is configured to acquire a target age segment corresponding to the user fingerprint according to a correspondence between a pre-defined user age segment and a coefficient value of a fingerprint key feature point.

As can be seen from the above, the present application discloses a device control method based on user information identification and a mobile terminal. When applying the application, each user can pre-register according to his control preferences or habits, and separately implement the control required for each device. User information, and on the basis of this, the correspondence between the user name, the user information label and the control function is set, so that when the user has control requirements for a certain device, the corresponding user information content can be directly input to the mobile terminal. After receiving the information content entered by the user, the mobile terminal can obtain the required control function by identifying the user name and the information tag corresponding to the information content, and generate a control instruction corresponding to the control function to achieve the target. The device performs the required control. It can be seen that the present application satisfies the requirement that multiple users use the same mobile terminal to personally control devices such as smart homes and the Internet, thereby improving the user experience.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is an embodiment of the present invention, and those skilled in the art can obtain other drawings according to the provided drawings without any creative work.

1 is a flowchart of a device control method based on user information identification according to Embodiment 1 of the present invention;

2 is a diagram showing an example of a fingerprint registration and setting UI according to Embodiment 1 of the present invention;

3 is another flowchart of a device control method based on user information identification according to Embodiment 2 of the present invention;

4 is a flow chart of collecting key feature points of a fingerprint provided by Embodiment 2 of the present invention;

FIG. 5 is a schematic structural diagram of a mobile terminal according to Embodiment 3 of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Embodiment 1

This embodiment discloses a device control method based on user information identification, and the method can be applied to a mobile terminal such as a smart phone. Referring to FIG. 1, the method may include the following steps:

S101: Receive a control request of a user, where the control request includes content of user information to be identified.

The user information content is specifically a user fingerprint input by the user to the mobile terminal through a fingerprint sensor integrated in the mobile terminal.

This embodiment specifically provides a scheme for implementing device control by user fingerprint identification. Different fingerprints of different users and different fingerprints of the same user respectively have different permissions, and each fingerprint may correspond to a specific type according to the function setting of the user when registering. Control function. For example, the user's left index finger fingerprint corresponds to the “turn on the smart TV” function, the right index finger fingerprint corresponds to the “turn on the car radio” function, and the user's left middle finger fingerprint corresponds to the “turn on the car interior atmosphere light” function.

Based on this, when applying the present application, each user who uses the same mobile terminal to implement device control such as smart home, car networking, etc., needs to register the user fingerprint required for implementing each device control in advance in the mobile terminal, and on this basis, Set the user name, the corresponding relationship between the fingerprint name of the registered fingerprint and the control function, and save it in the fingerprint function table, so as to realize the control that matches the entered fingerprint when the subsequent user has the device control requirement and enters the corresponding fingerprint. Features enable device control to provide support.

Specifically, referring to the fingerprint registration and setting UI (User Interface) example diagram provided in FIG. 2, the user can input the fingerprint of the required finger on the mobile terminal interface through the fingerprint sensor to implement fingerprint registration, and the mobile terminal acquires the fingerprint through the fingerprint sensor. After the fingerprint image of the fingerprint registered by the user, various basic feature points such as an endpoint, a bifurcation point, a bifurcation point, an isolated point, a ring point, and a short line included in the fingerprint image may be extracted, and generated on the basis of each The fingerprint template consisting of basic feature points is stored in the fingerprint database, thereby providing a comparison basis for fingerprint recognition in the subsequent device control process. A fingerprint template of each registered fingerprint recorded by each registered user is stored in the fingerprint database.

At the same time, the fingerprint name of the registered fingerprint and the user name of the user to which it belongs can be edited, and the fingerprint name of the registered fingerprint, the corresponding user name and the corresponding control function are set according to the user's control requirements. Finally, the corresponding relationship is saved to the pre-established fingerprint function table. For the structure and content of the fingerprint function table, refer to the examples provided in Table 1 below.

Table 1

On the basis of the above pre-processing, when a certain user needs to control a certain device, the required control function can be realized by directly inputting the fingerprint of the corresponding finger to the mobile terminal. For example, referring to Table 1, User A can implement the function of turning on the smart TV by recording his left index finger fingerprint to the mobile terminal.

S102: Identify a target user name to which the user information content belongs, and a target information label corresponding to the user information content.

In this embodiment, the target information label is a fingerprint name corresponding to the user fingerprint.

After a certain user inputs the fingerprint of the corresponding finger to the mobile terminal based on the control requirement of the certain device, the mobile terminal extracts various basic feature points of the fingerprint input, such as an endpoint, a bifurcation point, a ring point, a short line, and the like. And matching the extracted feature point group with each fingerprint module stored in the fingerprint database in advance, and matching the user name and fingerprint name corresponding to the successful fingerprint template, that is, the user name and fingerprint corresponding to the recognized user input fingerprint. name.

S103: Acquire a target control function corresponding to the device control request by using the target user name and the target information tag according to a correspondence between a preset user name, an information tag, and a control function; and the target control function includes being controlled The device identifier of the device and the control operation performed on the controlled device, each user name corresponding to at least one information label, and each information label corresponds to a control function.

After the user name and the fingerprint name corresponding to the user's fingerprint are identified, the mobile terminal can retrieve the fingerprint function table by using the recognition result to obtain the control function required for the user's fingerprint, for example, Assuming that the user fingerprint is identified as “user B, left middle finger fingerprint”, the fingerprint function table can be retrieved to know that the control function corresponding to the user fingerprint is “turning on the interior atmosphere light”.

S104: Send a control instruction corresponding to the target control function to the controlled device corresponding to the device identifier.

After the fingerprint of the user is recognized, and the user's fingerprint is determined to correspond to the required control function, the mobile terminal may generate a control instruction corresponding to the control function, and send the control command to the corresponding controlled device to implement the It is controlled. For example, for the "turn on smart TV" function corresponding to the left index finger fingerprint of user A, the mobile terminal can issue a power-on command to the smart TV to control the smart TV to turn on.

It can be seen from the above solution that when applying the method of the present application, each user can pre-register the user information required for controlling each device according to its control preference or habit, and on this basis, set the user name and user information label. Corresponding relationship with the control function, so that when the user has control requirements for a certain device, the corresponding user information content can be directly input to the mobile terminal, and after receiving the information content entered by the user, the mobile terminal can identify the The user name and the information tag corresponding to the information content are used to obtain the required control function, and generate a control instruction corresponding to the control function to implement the required control on the target device. It can be seen that the present application satisfies the requirement that multiple users use the same mobile terminal to personally control devices such as smart homes and the Internet, thereby improving the user experience.

Embodiment 2

The second embodiment continues to supplement the method of the first embodiment. Referring to FIG. 3, the method may further include the following steps after the step S103:

S301: Identify a target age segment corresponding to the fingerprint of the user;

S302: Acquire a target feedback content corresponding to the target age segment according to a correspondence between a preset age group and a device feedback content.

Correspondingly, the control instruction sent by the mobile terminal to the controlled device carries the target feedback content, so that when the controlled device responds to the control instruction, the information may be fed back to the user according to the indication of the target feedback content.

On the basis of the first embodiment, the embodiment adds fingerprint information to identify different users' age information, and according to the user age information, differently and specifically maintains and controls the smart home, the vehicle network and other devices for different users. Content scheme, for example, if the user is identified as a teenager, When the smart TV is turned on, it will automatically filter out some channels that are not suitable for viewing. Instead, it will push some channels that are more suitable for viewing, such as filtering out game channels, pushing English channels, sports channels, educational channels, and so on. Referring to Table 2, Table 2 shows the different device content that is matched for users of different ages.

Table 2

Applicants have found through research that the age of the user's fingerprint lines, fingerprint size, density, wrinkles, etc. can be used to determine the age range in which the user is located. For example, young people generally have no wrinkles, while the elderly have skin wrinkles. More people; younger people such as children or teenagers have smaller palm areas, and their fingerprint lines are correspondingly thinner, while older people have thicker fingerprint lines. Based on this, the thickness of the fingerprint line of the user, the size of the fingerprint, and the fingerprint wrinkles are used as key feature points for identifying the age information of the user.

Referring to Table 3, Table 3 is a table of fingerprint intelligent identification coefficients that can be used for age information identification provided by the present application.

table 3

User age range Fingerprint thickness coefficient Fingerprint size factor Fingerprint wrinkle coefficient child 0.01-0.25 0.01-0.25 0.01-0.25 juvenile 0.25-0.5 0.25-0.5 0.25-0.5 youth 0.5-0.75 0.5-0.75 0.5-0.75

elderly 0.75-1 0.75-1 0.75-1

After the fingerprint is collected by the fingerprint sensor and the fingerprint image is generated, referring to FIG. 4, the mobile terminal can obtain a fingerprint line that can be used to identify the age information of the user by performing preset digital signal processing and key feature point extraction processing on the fingerprint image. Fingerprint features such as thickness, fingerprint size and fingerprint wrinkles, and corresponding coefficient values are assigned to each key feature point according to the actual situation of the extracted key feature points. The preset digital signal processing includes performing extreme value filtering, primary smoothing, sharpening, secondary smoothing, binarization, and refinement processing on the fingerprint image in sequence.

Therefore, on the basis of this, the mobile terminal can obtain the age range of the user by comparing the coefficient values of the extracted key feature points with Table 3, and then the specific content of the device corresponding to the user age segment can be read from Table 2. Afterwards, the specific content of the read device is carried into the generated control command, and the controlled device is controlled, so that when the controlled device responds to the control command, the controlled device can feed back or push the user according to the content indication carried in the control command. The age range required. For example, if the fingerprint intelligently recognizes an elderly person, when the smart TV is turned on by the fingerprint, the channel content of the feedback is mainly the elderly health channel, the TV drama channel, the sports channel, etc.; if the fingerprint intelligently recognizes the young person, the fingerprint is opened. When the radio is controlled in the car, the default channel of the radio is the song channel and so on.

Embodiment 3

This embodiment discloses a mobile terminal, and the mobile terminal corresponds to the device control method based on user information identification disclosed in Embodiment 1 and Embodiment 2.

Corresponding to the first embodiment, referring to FIG. 5, the mobile terminal includes a request receiving module 100, an information identifying module 200, a control function acquiring module 300, and an instruction issuing module 400.

The request receiving module 100 is configured to receive a control request of the user, where the control request includes content of the user information to be identified.

The information identification module 200 is configured to identify a target user name to which the user information content belongs, and a target information label corresponding to the user information content.

The user information content is a user fingerprint entered by the user through the fingerprint sensor to the mobile terminal, and the target information label is a fingerprint name corresponding to the user fingerprint.

The information identification module 200 includes a fingerprint identification unit for identifying the user fingerprint by comparing the user fingerprint with each fingerprint template pre-stored in the fingerprint database. a user name of the user, and a fingerprint name corresponding to the user fingerprint; the fingerprint database is pre-stored with a fingerprint template of each registered fingerprint entered by each registered user.

The control function obtaining module 300 is configured to acquire, by using the target user name and the target information tag, a target control function corresponding to the device control request, according to a preset relationship between the user name and the information tag and the control function; The target control function includes a device identifier of the controlled device and a control operation performed on the controlled device, and each user name corresponds to at least one information tag, and each information tag corresponds to one control function.

The command issuing module 400 is configured to send a control instruction corresponding to the control function to the corresponding controlled device of the device identifier.

Corresponding to the second embodiment, referring to FIG. 6, the mobile terminal further includes a feedback content obtaining module 500, where the module includes an age information identifying unit and a feedback content acquiring unit.

The age information identifying unit is configured to identify a target age segment corresponding to the user fingerprint.

The feedback content obtaining unit is configured to acquire the target feedback content corresponding to the target age segment according to the correspondence between the preset age group and the device feedback content.

The age information identifying unit includes a digital signal processing subunit, a feature point extracting sub-sheet, and an age segment obtaining sub-unit.

a digital signal processing sub-unit, configured to perform preset digital signal processing on the fingerprint image of the user fingerprint; the preset digital signal processing includes extreme value filtering, primary smoothing, sharpening, secondary smoothing, binarization And refinement processing;

a feature point extraction subunit, configured to extract a preset key feature point in the fingerprint information obtained by the digital signal processing, and assign a corresponding coefficient value to each extracted key feature point; wherein the preset key feature Points can reflect user age information;

The age segment acquisition sub-unit is configured to acquire a target age segment corresponding to the user fingerprint according to a correspondence between a pre-defined user age segment and a coefficient value of a fingerprint key feature point.

For the mobile terminal disclosed in Embodiment 3 of the present invention, since it corresponds to the device control method based on user information identification disclosed in Embodiment 1 and Embodiment 2, the description is relatively simple. For related similarities, refer to the embodiment. The description of the device control method part based on the user information identification in the first embodiment and the second embodiment may be omitted here.

It should be noted that each embodiment in the specification is described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the embodiments are similar. The parts can be seen from each other.

For the convenience of description, the above system or device is described as being divided into various modules or units by function. Of course, the functions of each unit may be implemented in the same software or software and/or hardware when implementing the present application.

It will be apparent to those skilled in the art from the above description of the embodiments that the present application can be implemented by means of software plus a necessary general hardware platform. Based on such understanding, the technical solution of the present application may be embodied in the form of a software product in essence or in the form of a software product, which may be stored in a storage medium such as a ROM/RAM or a disk. , an optical disk, etc., includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present application or portions of the embodiments.

Finally, it is also to be understood that the term "comprises", "comprising" or any other variants thereof is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device comprising a plurality of elements includes Those elements, but also other elements not explicitly listed, or elements that are inherent to such a process, method, item or equipment. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.

The above description is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It should be considered as the scope of protection of the present invention.

Claims (10)

A device control method based on user information identification, which is characterized in that it is applied to a mobile terminal, and the method includes: Receiving a control request of the user, where the control request includes content of the user information to be identified; Identifying a target user name to which the user information content belongs, and a target information label corresponding to the user information content; Obtaining, by using the target user name and the target information tag, a target control function corresponding to the device control request, where the target control function includes the controlled device, based on a preset relationship between the user name, the information tag, and the control function. a device identifier and a control operation performed on the controlled device, each user name corresponding to at least one information label, and each information label corresponds to a control function; And issuing, to the controlled device corresponding to the device identifier, a control instruction corresponding to the target control function. The method according to claim 1, wherein the user information content is a user fingerprint entered by the user through the fingerprint sensor, and the target information label is a fingerprint name corresponding to the user fingerprint. The method according to claim 2, wherein the identifying the target user name corresponding to the user information content and the target information label corresponding to the user information content comprises: The user name of the user to which the user fingerprint belongs, and the fingerprint name corresponding to the user fingerprint are identified by comparing the user fingerprint with each fingerprint template stored in the fingerprint database. The fingerprint database is pre-stored with a fingerprint template of each registered fingerprint recorded by each registered user. The method according to claim 3, wherein the device control request is obtained by using the target user name and the target information tag based on the correspondence between the preset user name, the information tag and the control function. After the corresponding target control function, it also includes: Identifying a target age segment corresponding to the user fingerprint; According to the correspondence between the preset age group and the device feedback content, the target feedback content corresponding to the target age segment is obtained. The method of claim 4 wherein said identifying said user fingerprint The corresponding target age range, including: Performing preset digital signal processing on the fingerprint image of the user fingerprint; the preset digital signal processing includes: extreme value filtering, primary smoothing, sharpening, secondary smoothing, binarization, and refinement processing; Extracting a preset key feature point in the fingerprint information obtained by the digital signal processing, and assigning a corresponding coefficient value to each extracted key feature point; wherein the preset key feature point can reflect the user age information; The target age segment corresponding to the fingerprint of the user is obtained according to a correspondence between a pre-defined user age segment and a coefficient value of a fingerprint key feature point. The method according to claim 4 or 5, wherein the control instruction carries the target feedback content, so that when the controlled device responds to the control instruction, according to the indication of the target feedback content User feedback information. A mobile terminal, comprising: a request receiving module, configured to receive a control request of the user, where the control request includes content of the user information to be identified; An information identifying module, configured to identify a target user name to which the user information content belongs, and a target information label corresponding to the user information content; a control function obtaining module, configured to acquire, by using the target user name and the target information tag, a target control function corresponding to the device control request, based on a preset user name, a correspondence between the information tag and the control function; The control function includes a device identifier of the controlled device and a control operation performed on the controlled device, each user name corresponding to at least one information label, and each information label corresponds to a control function; And an instruction issuing module, configured to send a control instruction corresponding to the control function to the corresponding controlled device of the device identifier. The mobile terminal according to claim 7, wherein the user information content is a user fingerprint entered by the user through the fingerprint sensor, and the target information label is a fingerprint name corresponding to the user fingerprint; Then the information identification module includes: a fingerprint identification unit, configured to identify a user name of the user to which the user fingerprint belongs, and a fingerprint name corresponding to the user fingerprint by comparing the user fingerprint with each fingerprint template pre-stored in the fingerprint database; The fingerprint database is pre-stored with each registration finger entered by each registered user. Pattern of fingerprints. The mobile terminal according to claim 8, further comprising a feedback content acquisition module, wherein the feedback content acquisition module comprises: An age information identifying unit, configured to identify a target age segment corresponding to the user fingerprint; The feedback content obtaining unit is configured to acquire the target feedback content corresponding to the target age segment according to the correspondence between the preset age group and the device feedback content. The mobile terminal according to claim 9, wherein the age information identifying unit comprises: a digital signal processing sub-unit, configured to perform preset digital signal processing on the fingerprint image of the user fingerprint; the preset digital signal processing includes extreme value filtering, primary smoothing, sharpening, secondary smoothing, binarization And refinement processing; a feature point extraction subunit, configured to extract a preset key feature point in the fingerprint information obtained by the digital signal processing, and assign a corresponding coefficient value to each extracted key feature point; wherein the preset key feature Points can reflect user age information; The age segment acquisition sub-unit is configured to acquire a target age segment corresponding to the user fingerprint according to a correspondence between a pre-defined user age segment and a coefficient value of a fingerprint key feature point.

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