CN110232761A - Door lock control method and related device based on finger vein recognition - Google Patents

Abstract

The embodiment of the application discloses a door lock control method and a related device based on finger vein recognition, which are applied to a mobile terminal of a door lock control system, wherein the door lock control system further comprises a door lock control terminal, the mobile terminal is provided with a vein recognition module, the mobile terminal establishes communication connection with the door lock control terminal, and the method comprises the following steps: receiving an unlocking request from a door lock control terminal, wherein the unlocking request carries safety level information; searching a first identification mode matched with the safety level information from at least one preset identification mode; acquiring a first finger vein image of a user through a vein recognition module; comparing the first finger vein image with a finger vein template corresponding to the first identification mode to judge whether the first finger vein image is successfully identified; and when the first finger vein image is successfully identified, an unlocking instruction is sent to the door lock control terminal, and the unlocking instruction is used for indicating the door lock control terminal to control unlocking. The embodiment of the application is favorable for improving the safety of the door lock control system.

Description

Door lock control method and related device based on finger vein recognition

technical field

The present application relates to the field of electronic technology, and in particular to a door lock control method and related devices based on finger vein recognition.

Background technique

With the continuous improvement of living standards, people pay more attention to safety and convenience issues, and the concept of home intelligent system is born. The so-called smart home is the product of the combination of modern electronic technology, automation technology and communication technology. As the core of the home, the safety of door locks has become the main concern of people. Smart locks refer to locks that are different from traditional mechanical locks and are more intelligent in terms of user identification, security, and management, and use non-mechanical keys as mature technologies for user identification IDs, such as fingerprint locks, password locks, iris recognition locks, Access control magnetic cards, etc., among which fingerprint locks, password locks, and access control magnetic cards are more common.

However, the security of fingerprint locks, password locks, and access control magnetic cards is not high. The locks are fingerprint locks, password locks or access control magnetic cards, and the security of smart locks is low.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a door lock control method and related device based on finger vein recognition, which are beneficial to improve the security of the door lock control system.

In the first aspect, an embodiment of the present application provides a door lock control method based on finger vein recognition, which is applied to a mobile terminal of a door lock control system. The door lock control system further includes a door lock control terminal, and the mobile terminal is provided with The vein identification module, the mobile terminal establishes a communication connection with the door lock control terminal, and the method includes:

receiving an unlocking request from the door lock control terminal, where the unlocking request carries security level information;

Search for a first identification mode matching the security level information from at least one preset identification mode;

Obtain the first finger vein image of the user through the vein identification module;

Comparing the first finger vein image with the finger vein template corresponding to the first identification method to determine whether the first finger vein image is successfully identified;

When the first finger vein image is successfully recognized, an unlocking instruction is sent to the door lock control terminal, where the unlocking instruction is used to instruct the door lock control terminal to control unlocking.

In a second aspect, an embodiment of the present application provides a device for door lock control based on finger vein recognition, which is applied to a mobile terminal of a door lock control system, where the door lock control system further includes a door lock control terminal, and the mobile terminal sets There is a vein identification module, the mobile terminal establishes a communication connection with the door lock control terminal, and the device includes:

a receiving unit, configured to receive an unlocking request from the door lock control terminal, where the unlocking request carries security level information;

a search unit, configured to search for a first identification mode matching the security level information from at least one preset identification mode;

an acquisition unit, configured to acquire the first finger vein image of the user through the vein identification module;

A comparison unit, configured to compare the first finger vein image with the finger vein template corresponding to the first identification method, to determine whether the first finger vein image is successfully identified;

A sending unit, configured to send an unlock instruction to the door lock control terminal when the first finger vein image is successfully recognized, where the unlock instruction is used to instruct the door lock control terminal to control unlocking.

In a third aspect, embodiments of the present application provide a mobile terminal, including a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory, and are configured to be processed by the above The above program includes instructions for executing steps in any method of the first aspect of the embodiments of the present application.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes a computer to execute the computer program as described in the first embodiment of the present application. In one aspect some or all of the steps described in any method.

In a fifth aspect, an embodiment of the present application provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute as implemented in the present application. Examples include some or all of the steps described in any method of the first aspect. The computer program product may be a software installation package.

It can be seen that, in the embodiment of the present application, the mobile terminal receives an unlocking request from the door lock control terminal, the unlocking request carries the security level information, and the mobile terminal searches for the first identification matching the security level information from at least one preset identification method. method, obtain the first finger vein image of the user, and compare the first finger vein image with the finger vein template corresponding to the first recognition method to determine whether the first finger vein image is successfully recognized. When the first finger vein image is successfully recognized , send the unlock command to the door lock control terminal, and the door lock control terminal controls the unlocking. It can be seen that, in the embodiment of the present application, the mobile terminal obtains the user's first finger vein image, determines whether the first finger vein image is successfully recognized, and can control unlocking only after the recognition is successful, and for different security levels, different identification methods are set. It can be identified in different ways under different security levels. Similarly, the unlocking can be controlled only after the identification is successful. In this way, the finger vein identification method is used, which has high security and meets the needs of controlled unlocking under different security levels, which is conducive to improving The security of the door locking system.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

1 is a schematic diagram of a door lock control system provided by an embodiment of the present application;

2 is a schematic flowchart of a door lock control method based on finger vein recognition provided by an embodiment of the present application;

3 is a schematic flowchart of another door lock control method based on finger vein recognition provided by an embodiment of the present application;

4 is a schematic flowchart of another door lock control method based on finger vein recognition provided by an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a mobile terminal provided by an embodiment of the present application;

FIG. 6 is a block diagram of functional units of an apparatus for door lock control based on finger vein recognition provided by an embodiment of the present application.

Detailed ways

The embodiments of the present application provide a door lock control method and related device based on finger vein recognition, which are beneficial to improve the security of the door lock system.

In order to make those skilled in the art better understand the embodiments of the present application, the technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only of the present application. Some examples, but not all examples. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the scope of protection of the present application.

It should be noted that the terms "first", "second", "third", "fourth", etc. in the description, claims and drawings of the present application are used to distinguish different objects, rather than used for Describe a specific order. Furthermore, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally also includes For other steps or units inherent to these processes, methods, products or devices.

The embodiments of the present application will be described in detail below.

Please refer to FIG. 1 . FIG. 1 is a schematic diagram of a door lock control system 100 provided by an embodiment of the present application. The door lock control system 100 includes a mobile terminal 101 and a door lock control terminal 102, the mobile terminal 101 is provided with a vein identification module, and the mobile terminal 101 establishes a communication connection with the door lock control terminal 102;

The mobile terminal 101 receives the unlocking request from the door lock control terminal 102, and the unlocking request carries the security level information; the mobile terminal 101 searches for the first identification method matching the security level information from at least one preset identification method; The identification module acquires the user's first finger vein image; the mobile terminal 101 compares the first finger vein image with the finger vein template corresponding to the first identification method to determine whether the first finger vein image is successfully identified; When the identification is successful, the mobile terminal 101 sends an unlock instruction to the door lock control terminal 102, and the unlock instruction is used to instruct the door lock control terminal 102 to control the unlocking.

The door lock control system provided by the embodiments of the present application is beneficial to improve the security of the door lock control system. Wherein, in this example, the door lock control system 100 includes a mobile terminal 101 and a door lock control terminal 102, and in a specific use environment, the door lock control system 100 also includes other components.

The mobile terminal 101 in this embodiment of the present application may include various handheld devices, wearable devices, computing devices, or other processing devices connected to a wireless modem with wireless communication functions, as well as various forms of user equipment (User Equipment, UE), mobile station (Mobile Station, MS), terminal device (terminal device) and so on.

The door lock control terminal 102 in the embodiment of the present application can be installed in various places, such as residential houses, office buildings, offices, schools, banks, hospitals, and the like.

Please refer to FIG. 2. FIG. 2 is a schematic flowchart of a door lock control method based on finger vein recognition provided by an embodiment of the present application, which is applied to a mobile terminal of a door lock control system, and the door lock control system further includes a door lock control method. terminal, the mobile terminal is provided with a vein identification module, and the mobile terminal establishes a communication connection with the door lock control terminal. As shown in FIG. 2 , the door lock control method based on finger vein identification provided in this embodiment includes:

Step 201: Receive an unlocking request from the door lock control terminal, where the unlocking request carries security level information.

Specifically, when the user needs to control unlocking, the door lock control terminal sends an unlock request to the mobile terminal, and the unlock request carries security level information, which varies according to the place where the door lock control terminal is installed.

For example, if the door lock control terminal is installed at the main entrance of a residential community, the main entrance of a school, etc., due to the large flow of people in these places, and many other people will enter or visit, the security requirements are relatively low, and the corresponding The security level of the unlock request is also relatively low. If the door lock control terminal is installed in the safe of the bank, the drug storage room of the hospital, the technical data room of the technology company, etc., because these places control the entry and exit of personnel is very strict, so The security requirements are relatively high, and the security level carried by the corresponding unlocking request is also relatively high.

Step 202: Search for a first identification mode matching the security level information from at least one preset identification mode.

Specifically, the mobile terminal stores at least one identification method and the corresponding relationship between the identification method and the security level information. For a lower security level, the corresponding identification method is relatively simple. For example, it can identify the finger vein image of any finger. The higher the security level, the more complicated the recognition method is. For example, it can recognize the finger vein images of multiple fingers at the same time, or it can also perform auxiliary recognition in addition to the recognition of the finger vein images. Only when multiple recognitions pass, It is determined that the identification is successful.

Step 203: Acquire a first finger vein image of the user through the vein identification module.

Specifically, the mobile terminal is provided with a vein identification module, the user places the finger in the collection area of the mobile terminal, and the mobile terminal obtains the user's first finger vein image through the vein identification module, and the first finger vein image may be the user's thumb, index finger, The finger vein image of any one of the middle finger, ring finger, and little finger.

Step 204 , compare the first finger vein image with the finger vein template corresponding to the first identification method to determine whether the first finger vein image is successfully identified.

Specifically, the mobile terminal stores a plurality of finger vein templates, including finger vein templates of multiple fingers of the same user, finger vein templates of different users, etc., and the mobile terminal obtains the finger vein templates corresponding to the first identification method. When the identification method is to identify the finger vein image of the index finger, the mobile terminal obtains the finger vein template of the index finger, and then compares the obtained first finger vein image with the finger vein template of the index finger, so as to determine whether the first finger vein image is successfully identified. .

In a possible example, the first identification method corresponds to a finger vein template, and only the first finger vein image is compared with the finger vein template to determine whether the identification is successful.

In another possible example, the first identification method corresponds to multiple finger vein templates. For example, the door lock control system is set with multiple valid users, and the mobile terminal stores the finger vein templates of the multiple valid users. A finger vein image is compared with the plurality of finger vein templates. As long as the first finger vein image is successfully compared with any finger vein template among the plurality of finger vein templates, it can be determined that the first finger vein image is successfully recognized.

Step 205, when the first finger vein image is successfully recognized, send an unlock instruction to the door lock control terminal, where the unlock instruction is used to instruct the door lock control terminal to control unlocking.

Specifically, when the first finger vein image is successfully recognized, it indicates that the corresponding user is a valid user, the mobile terminal sends an unlocking instruction to the door lock control terminal, and when the door lock control terminal receives the unlocking instruction, it controls the unlocking, and the user can enter corresponding place.

It can be seen that, in the embodiment of the present application, the mobile terminal receives an unlocking request from the door lock control terminal, the unlocking request carries the security level information, and the mobile terminal searches for the first identification matching the security level information from at least one preset identification method. method, obtain the first finger vein image of the user, and compare the first finger vein image with the finger vein template corresponding to the first recognition method to determine whether the first finger vein image is successfully recognized. When the first finger vein image is successfully recognized , send the unlock command to the door lock control terminal, and the door lock control terminal controls the unlocking. It can be seen that, in the embodiment of the present application, the mobile terminal obtains the user's first finger vein image, determines whether the first finger vein image is successfully recognized, and can control unlocking only after the recognition is successful, and for different security levels, different identification methods are set. It can be identified in different ways under different security levels. Similarly, the unlocking can be controlled only after the identification is successful. In this way, the finger vein identification method is used, which has high security and meets the needs of controlled unlocking under different security levels, which is conducive to improving The security of the door locking system.

Consistent with the embodiment shown in FIG. 2 above, please refer to FIG. 3. FIG. 3 is a schematic flowchart of another door lock control method based on finger vein recognition provided by an embodiment of the present application, which is applied to the movement of the door lock control system. The door lock control system further includes a door lock control terminal, the mobile terminal is provided with a vein identification module, and the mobile terminal establishes a communication connection with the door lock control terminal. As shown in FIG. 3, this embodiment The provided door lock control methods based on finger vein recognition include:

Step 301, the mobile terminal receives an unlocking request from the door lock control terminal, and the unlocking request carries security level information.

Specifically, when the user needs to control unlocking, the door lock control terminal sends an unlock request to the mobile terminal, and the unlock request carries security level information, which varies according to the place where the door lock control terminal is installed.

For example, if the door lock control terminal is installed at the main entrance of a residential community, the main entrance of a school, etc., due to the large flow of people in these places, and many other people will enter or visit, the security requirements are relatively low, and the corresponding The security level of the unlock request is also relatively low. If the door lock control terminal is installed in the safe of the bank, the drug storage room of the hospital, the technical data room of the technology company, etc., because these places control the entry and exit of personnel is very strict, so The security requirements are relatively high, and the security level carried by the corresponding unlocking request is also relatively high.

Step 302, the mobile terminal searches for a first identification mode matching the security level information from at least one preset identification mode, where the first identification mode is to identify a finger vein image of a first finger.

Specifically, the mobile terminal stores at least one identification method and the corresponding relationship between the identification method and the security level information. For a lower security level, the corresponding identification method is relatively simple. For example, it can identify the finger vein image of any finger. The higher the security level, the more complicated the recognition method is. For example, it can recognize the finger vein images of multiple fingers at the same time, or it can also perform auxiliary recognition in addition to the recognition of the finger vein images. Only when multiple recognitions pass, It is determined that the identification is successful.

Step 303, the mobile terminal acquires the first finger vein image of the user through the vein identification module.

Specifically, the mobile terminal is provided with a vein identification module, the user places the finger in the collection area of the mobile terminal, and the mobile terminal obtains the user's first finger vein image through the vein identification module, and the first finger vein image may be the user's thumb, index finger, The finger vein image of any one of the middle finger, ring finger, and little finger.

Step 304, the mobile terminal acquires the pre-stored finger vein template of the first finger.

Step 305, the mobile terminal compares the first finger vein image with the finger vein template of the first finger to obtain a first similarity.

In a possible example, the method for comparing the first finger vein image with the finger vein template of the first finger by the mobile terminal to obtain the first similarity may be:

analyzing the feature point distribution of the first finger vein image;

Perform circular image interception on the first finger vein image according to M different circle centers to obtain M circular finger vein images, where M is an integer greater than 3;

The target circular finger vein image is selected from the M circular finger vein images, and the number of feature points contained in the target circular finger vein image is greater than that of other circular finger vein images in the M circular finger vein images;

Feature point matching is performed between the target circular finger vein image and the finger vein template of the first finger to obtain the first similarity.

It can be seen that since the finger vein image contains not only the feature points, but also other irrelevant information, such as background information and noise, it will take a relatively long time to compare all the information contained in the finger vein image with the finger vein template of the first finger. It takes a long time and more resources, and may affect the accuracy, so by intercepting the finger vein image, select the finger vein image with the most feature points, and compare the finger vein image with the most feature points with the finger vein template. The comparison time can be saved, and the comparison accuracy is also high.

In a possible example, the method for performing feature point matching between the target circular finger vein image and the finger vein template of the first finger to obtain the first similarity may be:

When the definition of the target circular finger vein image is not less than the preset definition threshold, all feature points in the target circular finger vein image are matched with the finger vein template of the first finger to obtain the first similarity ;

When the sharpness of the target circular finger vein image is less than the preset sharpness threshold, all the feature points in the target circular finger vein image are divided into N types of feature points, where N is an integer greater than 1, and the N types of feature points set different weights;

The N-type feature points are matched with the finger vein template of the first finger to obtain the first similarity.

Specifically, when acquiring the user's finger vein image, the acquired finger vein image may be blurred because the user's finger vein is shallow. If all the feature points in the target circular finger vein image are directly compared with the first The feature point matching of the finger vein template of a finger will lead to a high rejection rate, that is, valid users will be identified as invalid users. Therefore, it is necessary to first determine whether the clarity of the target circular finger vein image is less than the preset clarity threshold. When the definition of the circular finger vein image is not less than the preset definition threshold, all feature points in the target circular finger vein image are matched with the finger vein template of the first finger to obtain the first similarity;

When the sharpness of the target circular finger vein image is less than the preset sharpness threshold, all the feature points in the target circular finger vein image are divided into N types of feature points, where N is an integer greater than 1, and the N types of feature points set The weights are different. The weight is the largest for the type of feature points with the most dense distribution of feature points, and the smallest weight is set for the type of feature points with the most scattered feature points.

The N types of feature points are matched with the finger vein template of the first finger to obtain N similarities, and the first similarity can be obtained by integrating the N similarities according to the weights of the N types of characteristic points.

It can be seen that when the obtained finger vein image is blurred due to the shallowness of the user's finger vein, it is determined whether the definition is smaller than the preset definition threshold, and if it is smaller than the preset definition threshold, the feature points are classified and set to different The weight of , which can make the calculated similarity more accurate and reduce the false rejection rate.

Step 306, the mobile terminal determines whether the first similarity exceeds a preset similarity threshold.

Step 307: If the first similarity exceeds a preset similarity threshold, it is determined that the first finger vein image is successfully recognized.

Step 308, if the first similarity does not exceed the preset similarity threshold, it is determined that the first finger vein image recognition fails.

Step 309, when the first finger vein image is successfully recognized, the mobile terminal sends an unlock instruction to the door lock control terminal.

Step 310, the door lock control terminal controls unlocking.

It can be seen that, in the embodiment of the present application, the mobile terminal receives an unlocking request from the door lock control terminal, the unlocking request carries the security level information, and the mobile terminal searches for the first identification matching the security level information from at least one preset identification method. method, obtain the first finger vein image of the user, intercept the first finger vein image, select the finger vein image with the most feature points, and compare the finger vein image with the most feature points with the finger vein template corresponding to the first recognition method Compare, and when the finger vein image is relatively blurred, classify the feature points and set different weights to determine whether the first finger vein image is successfully recognized, and when the first finger vein image is successfully recognized, report to the door lock control terminal. Send the unlock command, and the door lock control terminal controls the unlocking. It can be seen that in the embodiment of the present application, the mobile terminal obtains the user's first finger vein image, and determines whether the first finger vein image is successfully recognized. Only after the recognition can control the unlocking, it is beneficial to improve the security of the door lock system. The vein image is intercepted, the finger vein image with the most feature points is selected from it, and the finger vein image with the most feature points is compared with the finger vein template, which can save the comparison time and the comparison accuracy is also high. When the acquired finger vein image is too shallow and the obtained finger vein image is blurred, judge whether the sharpness is less than the preset sharpness threshold, if it is less than the preset sharpness threshold, classify the feature points and set different weights, which can make the calculation The obtained similarity is more accurate and reduces the false rejection rate.

Consistent with the embodiment shown in FIG. 3 above, please refer to FIG. 4 . FIG. 4 is a schematic flowchart of another door lock control method based on finger vein recognition provided by an embodiment of the present application, which is applied to the movement of the door lock control system. The door lock control system further includes a door lock control terminal, the mobile terminal is provided with a vein identification module, and the mobile terminal establishes a communication connection with the door lock control terminal. As shown in FIG. 4 , this embodiment The provided door lock control methods based on finger vein recognition include:

Step 401, the mobile terminal receives an unlocking request from the door lock control terminal, and the unlocking request carries security level information.

Specifically, when the user needs to control unlocking, the door lock control terminal sends an unlock request to the mobile terminal, and the unlock request carries security level information, which varies according to the place where the door lock control terminal is installed.

Step 402, the mobile terminal searches for a first identification mode matching the security level information from at least one preset identification mode, where the first identification mode includes identifying a finger vein image of the first finger.

Specifically, the mobile terminal stores at least one identification method and the corresponding relationship between the identification method and the security level information. For a lower security level, the corresponding identification method is relatively simple. For example, it can identify the finger vein image of any finger. The higher the security level, the more complicated the recognition method is. For example, it can recognize the finger vein images of multiple fingers at the same time, or it can also perform auxiliary recognition in addition to the recognition of the finger vein images. Only when multiple recognitions pass, It is determined that the identification is successful.

Step 403, the mobile terminal acquires the first finger vein image of the user through the vein identification module.

Specifically, the mobile terminal is provided with a vein identification module, the user places the finger in the collection area of the mobile terminal, and the mobile terminal obtains the user's first finger vein image through the vein identification module, and the first finger vein image may be the user's thumb, index finger, The finger vein image of any one of the middle finger, ring finger, and little finger.

Step 404 , the mobile terminal compares the first finger vein image with the finger vein template corresponding to the first identification method to determine whether the first finger vein image is successfully identified.

Step 405 , when the first finger vein image recognition is successful, obtain the first auxiliary identification information of the user, and the first identification method further includes auxiliary identification.

Specifically, in addition to recognizing the finger vein image of the first finger, the first identification method also needs to perform auxiliary identification. The first auxiliary identification information may be a password or pattern preset by the user, or may be obtained when the user's first finger is bent. Finger vein image.

Step 406 , the mobile terminal compares the first auxiliary identification information with the auxiliary identification template corresponding to the first identification mode to determine whether the first auxiliary identification information is successfully identified.

In a possible example, the first auxiliary identification information is the first password or the first pattern input by the user, and the first auxiliary identification information is compared with the auxiliary identification template corresponding to the first identification method to determine the first auxiliary identification The method of whether the information is successfully identified can be:

comparing the first password input by the user with a pre-stored password template;

If the first password is the same as the password template, it is determined that the first auxiliary identification information is successfully identified;

If the first password is different from the password template, it is determined that the first auxiliary identification information has failed to be identified;

Or, comparing the first pattern input by the user with a pre-stored pattern template;

If the first pattern is the same as the pattern template, it is determined that the first auxiliary identification information is successfully identified;

If the first pattern is different from the pattern template, it is determined that the identification of the first auxiliary identification information fails.

It can be seen that in addition to identifying the finger vein image of the user's first finger, auxiliary identification is also required, including identifying the password or pattern entered by the user, to ensure that the finger vein image and auxiliary identification of the user's first finger are successfully recognized, which is conducive to improving the door lock. Control system security.

In another possible example, the first auxiliary identification information is a finger vein image when the first finger is bent, and the first auxiliary identification information is compared with an auxiliary identification template corresponding to the first identification method to determine the first auxiliary identification The method of whether the information is successfully identified can also be:

Obtain the pre-stored finger vein template when the first finger is bent;

comparing the finger vein image when the first finger is bent with the finger vein template when the first finger is bent to obtain a second similarity;

judging whether the second similarity exceeds a preset similarity threshold;

If the second similarity exceeds the preset similarity threshold, it is determined that the first auxiliary identification information is successfully identified;

If the second similarity does not exceed the preset similarity threshold, it is determined that the identification of the first auxiliary identification information fails.

It can be seen that in addition to identifying the finger vein image of the user's first finger, auxiliary identification is also required, including identifying the finger vein image when the user's first finger is bent. Since the finger vein of the user's first finger is different in the vertical state and the bent state , so the obtained finger vein images are also different, ensuring that both the finger vein image of the user's first finger and the finger vein image when the first finger is bent are successfully recognized, which is beneficial to improve the security of the door lock control system.

Step 407, the mobile terminal determines that the first auxiliary identification information is successfully identified.

Step 408, the mobile terminal sends an unlock instruction to the door lock control terminal.

Step 409, the door lock control terminal controls unlocking.

It can be seen that, in the embodiment of the present application, the mobile terminal receives an unlocking request from the door lock control terminal, the unlocking request carries the security level information, and the mobile terminal searches for the first identification matching the security level information from at least one preset identification method. method, obtain the first finger vein image of the user, and compare the first finger vein image with the finger vein template corresponding to the first recognition method to determine whether the first finger vein image is successfully recognized. When the first finger vein image is successfully recognized , obtain the first auxiliary identification information of the user, compare the first auxiliary identification information with the auxiliary identification template corresponding to the first identification method, to determine whether the first auxiliary identification information is successfully identified, determine whether the first auxiliary identification information is successfully identified, and send the The door lock control terminal sends the unlock command, and the door lock control terminal controls the unlocking. It can be seen that, in this embodiment of the present application, the mobile terminal acquires the user's first finger vein image to determine whether the first finger vein image is successfully recognized, and the mobile terminal acquires the user's first auxiliary identification information, only the finger vein image and auxiliary identification information. The unlocking can be controlled only after the identification is successful. In this way, the method of finger vein identification and auxiliary identification is more conducive to improving the security of the door lock system.

Consistent with the embodiments shown in FIG. 3 and FIG. 4 above, please refer to FIG. 5 . FIG. 5 is a schematic structural diagram of a mobile terminal 500 provided by an embodiment of the present application. As shown in the figure, the mobile terminal 500 includes an application A processor 510, a memory 520, a communication interface 530, and one or more programs 521, wherein the one or more programs 521 are stored in the above-mentioned memory 520 and configured to be executed by the above-mentioned application processor 510, the one or more programs 521 include instructions for performing the following steps;

Receive the unlocking request from the door lock control terminal, and the unlocking request carries the security level information;

Searching for a first identification mode matching the security level information from at least one preset identification mode;

Obtain the user's first finger vein image through the vein identification module;

Comparing the first finger vein image with the finger vein template corresponding to the first identification method to determine whether the first finger vein image is successfully identified;

When the first finger vein image is successfully recognized, an unlock instruction is sent to the door lock control terminal, and the unlock instruction is used to instruct the door lock control terminal to control unlocking.

It can be seen that, in the embodiment of the present application, the mobile terminal receives an unlocking request from the door lock control terminal, the unlocking request carries the security level information, and the mobile terminal searches for the first identification matching the security level information from at least one preset identification method. method, obtain the first finger vein image of the user, and compare the first finger vein image with the finger vein template corresponding to the first recognition method to determine whether the first finger vein image is successfully recognized. When the first finger vein image is successfully recognized , send the unlock command to the door lock control terminal, and the door lock control terminal controls the unlocking. It can be seen that, in the embodiment of the present application, the mobile terminal obtains the user's first finger vein image, determines whether the first finger vein image is successfully recognized, and can control unlocking only after the recognition is successful, and for different security levels, different identification methods are set. It can be identified in different ways under different security levels. Similarly, the unlocking can be controlled only after the identification is successful. In this way, the finger vein identification method is used, which has high security and meets the needs of controlled unlocking under different security levels, which is conducive to improving The security of the door locking system.

In a possible example, the first recognition method includes recognizing a finger vein image of a first finger, and in the comparison of the first finger vein image with a finger vein template corresponding to the first recognition method, to obtain In terms of judging whether the recognition of the first finger vein image is successful, the instructions in the program are specifically used to perform the following operations: obtain a pre-stored finger vein template of the first finger; compare the first finger vein image with the comparing the finger vein templates of the first finger to obtain a first similarity; judging whether the first similarity exceeds a preset similarity threshold; if the first similarity exceeds the preset similarity threshold, then It is determined that the recognition of the first finger vein image is successful; if the first similarity does not exceed the preset similarity threshold, it is determined that the recognition of the first finger vein image fails.

In a possible example, in the aspect of comparing the first finger vein image with the finger vein template of the first finger to obtain the first similarity, the instructions in the program are specifically used to execute the following Operation: analyze the feature point distribution of the first finger vein image; perform circular image interception on the first finger vein image according to M different circle centers to obtain M circular finger vein images, where M is greater than 3 Integer; a target circular finger vein image is selected from the M circular finger vein images, and the number of feature points contained in the target circular finger vein image is greater than that of the other M circular finger vein images A circular finger vein image; feature point matching is performed between the target circular finger vein image and the finger vein template of the first finger to obtain the first similarity.

In a possible example, in the aspect of performing feature point matching between the target circular finger vein image and the finger vein template of the first finger to obtain the first similarity, the instructions in the program Specifically, the following operations are performed: when the definition of the target circular finger vein image is not less than a preset definition threshold, compare all the feature points in the target circular finger vein image with the finger of the first finger. The vein template performs feature point matching to obtain the first similarity; when the definition of the target circular finger vein image is less than the preset definition threshold, all the The feature points are divided into N types of feature points, the N is an integer greater than 1, and the weights set for the N types of feature points are different; the feature points of the N types of feature points are matched with the finger vein template of the first finger. , to obtain the first similarity.

In a possible example, the first identification method further includes auxiliary identification, and before the unlocking instruction is sent to the door lock control terminal, the instructions in the program are further used to perform the following operations: obtaining the user the first auxiliary identification information; compare the first auxiliary identification information with the auxiliary identification template corresponding to the first identification method to judge whether the first auxiliary identification information is successfully identified; determine the first auxiliary identification Information identification succeeded.

In a possible example, the first auxiliary identification information is a first password or a first pattern input by the user, and in the auxiliary identification corresponding to the first auxiliary identification information and the first identification manner In terms of comparing the templates to determine whether the first auxiliary identification information is successfully identified, the instructions in the program are used to perform the following operations: compare the first password input by the user with a pre-stored password template; If the first password is the same as the password template, it is determined that the first auxiliary identification information is successfully identified; if the first password is not the same as the password template, it is determined that the first auxiliary identification information has failed to be identified; or , compare the first pattern input by the user with the pre-stored pattern template; if the first pattern is the same as the pattern template, it is determined that the first auxiliary identification information is successfully recognized; if the first pattern is the same as the pattern template If it is different from the pattern template, it is determined that the first auxiliary identification information fails to be identified.

In a possible example, the first auxiliary identification information is a finger vein image when the first finger is bent, and in the auxiliary identification template corresponding to the first auxiliary identification information and the first identification manner In terms of comparing to determine whether the first auxiliary identification information is successfully identified, the instructions in the program are specifically used to perform the following operations: obtain a pre-stored finger vein template when the first finger is bent; A finger vein image when a finger is bent is compared with a finger vein template when the first finger is bent to obtain a second similarity; determine whether the second similarity exceeds the preset similarity threshold; if the If the second similarity exceeds the preset similarity threshold, it is determined that the first auxiliary identification information is successfully identified; if the second similarity does not exceed the preset similarity threshold, it is determined that the first auxiliary identification Message recognition failed.

The foregoing mainly introduces the solutions of the embodiments of the present application from the perspective of the method-side execution process. It can be understood that, in order to implement the above-mentioned functions, the mobile terminal includes corresponding hardware structures and/or software modules for executing each function. Those skilled in the art should easily realize that the present application can be implemented in hardware or in the form of a combination of hardware and computer software, in combination with the units and algorithm steps of each example described in the embodiments provided herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

In this embodiment of the present application, the mobile terminal may be divided into functional units according to the foregoing method examples. For example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units. It should be noted that the division of units in the embodiments of the present application is schematic, and is only a logical function division, and other division methods may be used in actual implementation.

FIG. 6 is a block diagram of functional units of an apparatus 600 for door lock control based on finger vein recognition involved in the embodiment of the present application. The door lock control device 600 based on finger vein recognition is applied to a mobile terminal of a door lock control system, the door lock control system further includes a door lock control terminal, the mobile terminal is provided with a vein recognition module, and the mobile terminal establishes a The communication connection of the door lock control terminal, the device 600 for door lock control based on finger vein recognition includes a processing unit 601 and a communication unit 602, wherein,

The communication unit 602 is configured to receive an unlocking request from the door lock control terminal, where the unlocking request carries security level information;

The processing unit 601 is configured to search for a first identification mode matching the security level information from at least one preset identification mode;

and for obtaining the first finger vein image of the user through the vein identification module;

and being used to compare the first finger vein image with the finger vein template corresponding to the first identification method, to determine whether the first finger vein image is successfully identified;

The communication unit 602 is further configured to send an unlock instruction to the door lock control terminal when the first finger vein image is successfully recognized, where the unlock instruction is used to instruct the door lock control terminal to control unlocking.

Wherein, the device 600 for door lock control based on finger vein recognition may further include a storage unit 603, and the storage unit 603 is used to store program codes and data of the mobile terminal. The processing unit 601 may be a processor, the communication unit 602 may be a touch screen display or a transceiver, and the storage unit 603 may be a memory.

It can be seen that, in the embodiment of the present application, the mobile terminal receives an unlocking request from the door lock control terminal, the unlocking request carries the security level information, and the mobile terminal searches for the first identification matching the security level information from at least one preset identification method. method, obtain the first finger vein image of the user, and compare the first finger vein image with the finger vein template corresponding to the first recognition method to determine whether the first finger vein image is successfully recognized. When the first finger vein image is successfully recognized , send the unlock command to the door lock control terminal, and the door lock control terminal controls the unlocking. It can be seen that, in the embodiment of the present application, the mobile terminal obtains the user's first finger vein image, determines whether the first finger vein image is successfully recognized, and can control unlocking only after the recognition is successful, and for different security levels, different identification methods are set. It can be identified in different ways under different security levels. Similarly, the unlocking can be controlled only after the identification is successful. In this way, the finger vein identification method is used, which has high security and meets the needs of controlled unlocking under different security levels, which is conducive to improving The security of the door locking system.

In a possible example, the first recognition method includes recognizing a finger vein image of a first finger, and in the comparison of the first finger vein image with a finger vein template corresponding to the first recognition method, to obtain In terms of determining whether the first finger vein image is successfully recognized, the processing unit 601 is specifically configured to: obtain a pre-stored finger vein template of the first finger; associate the first finger vein image with the first finger The finger vein templates are compared to obtain a first similarity; determine whether the first similarity exceeds a preset similarity threshold; if the first similarity exceeds the preset similarity threshold, determine the first similarity A finger vein image is successfully recognized; if the first similarity does not exceed the preset similarity threshold, it is determined that the first finger vein image recognition fails.

In a possible example, in the aspect of comparing the first finger vein image with the finger vein template of the first finger to obtain the first similarity, the processing unit 601 is specifically configured to: analyze the The feature point distribution of the first finger vein image; the circular image interception is performed on the first finger vein image according to M different circle centers to obtain M circular finger vein images, where M is an integer greater than 3; A target circular finger vein image is selected from the M circular finger vein images, and the number of feature points contained in the target circular finger vein image is greater than that of other circular finger veins in the M circular finger vein images image; perform feature point matching between the target circular finger vein image and the finger vein template of the first finger to obtain the first similarity.

In a possible example, in the aspect of performing feature point matching between the target circular finger vein image and the finger vein template of the first finger to obtain the first similarity, the processing unit 601 specifically Used for: when the definition of the target circular finger vein image is not less than a preset definition threshold, characterize all the feature points in the target circular finger vein image with the finger vein template of the first finger Point matching to obtain the first similarity; when the clarity of the target circular finger vein image is less than the preset definition threshold, all feature points in the target circular finger vein image are divided into N types of feature points, the N is an integer greater than 1, and the weights set for the N types of feature points are different; the N types of feature points are matched with the finger vein template of the first finger to obtain the Describe the first similarity.

In a possible example, the first identification method further includes auxiliary identification, and before sending the unlocking instruction to the door lock control terminal, the processing unit 601 is further specifically configured to: obtain the first identification of the user. auxiliary identification information; compare the first auxiliary identification information with the auxiliary identification template corresponding to the first identification method to determine whether the first auxiliary identification information is successfully identified; determine that the first auxiliary identification information is successfully identified .

In a possible example, the first auxiliary identification information is a first password or a first pattern input by the user, and in the auxiliary identification corresponding to the first auxiliary identification information and the first identification manner In terms of comparing the templates to determine whether the first auxiliary identification information is successfully identified, the processing unit 601 is specifically configured to: compare the first password input by the user with a pre-stored password template; If the password is the same as the password template, it is determined that the first auxiliary identification information is successfully identified; if the first password is not the same as the password template, it is determined that the first auxiliary identification information has failed to be identified; The first pattern input by the user is compared with a pre-stored pattern template; if the first pattern is the same as the pattern template, it is determined that the first auxiliary identification information is successfully recognized; If the pattern templates are different, it is determined that the first auxiliary identification information fails to be identified.

In a possible example, the first auxiliary identification information is a finger vein image when the first finger is bent, and in the auxiliary identification template corresponding to the first auxiliary identification information and the first identification manner In terms of comparing to determine whether the first auxiliary identification information is successfully identified, the processing unit 601 is specifically configured to: obtain a pre-stored finger vein template when the first finger is bent; Compare the finger vein image of the first finger with the finger vein template when the first finger is bent to obtain a second similarity; judge whether the second similarity exceeds the preset similarity threshold; if the second similarity If the preset similarity threshold is exceeded, it is determined that the first auxiliary identification information is successfully identified; if the second similarity does not exceed the preset similarity threshold, it is determined that the first auxiliary identification information has failed to be identified.

Embodiments of the present application further provide a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, and the computer program causes the computer to execute part or all of the steps of any method described in the above method embodiments , the above computer includes a mobile terminal.

Embodiments of the present application further provide a computer program product, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute any one of the method embodiments described above. some or all of the steps of the method. The computer program product may be a software installation package, and the above-mentioned computer includes a mobile terminal.

It should be noted that, for the sake of simple description, the foregoing method embodiments are all expressed as a series of action combinations, but those skilled in the art should know that the present application is not limited by the described action sequence. Because in accordance with the present application, certain steps may be performed in other orders or concurrently. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

In the above-mentioned embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the device embodiments described above are only illustrative. For example, the division of the above-mentioned units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated. to another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical or other forms.

The units described above as separate components may or may not be physically separated, and components shown as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

The above-mentioned integrated units, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable memory. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art, or all or part of the technical solution, and the computer software product is stored in a memory, Several instructions are included to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the above-mentioned methods in the various embodiments of the present application. The aforementioned memory includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

Those skilled in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable memory, and the memory can include: a flash disk , Read-only memory (English: Read-Only Memory, referred to as: ROM), random access device (English: Random Access Memory, referred to as: RAM), magnetic disk or optical disk, etc.

The embodiments of the present application have been introduced in detail above, and the principles and implementations of the present application are described in this paper by using specific examples. The descriptions of the above embodiments are only used to help understand the methods and core ideas of the present application; at the same time, for Persons of ordinary skill in the art, based on the idea of the present application, will have changes in the specific implementation manner and application scope. In summary, the contents of this specification should not be construed as limitations on the present application.

Claims (10)

1. a kind of based on the control method for door lock for referring to hand vein recognition, which is characterized in that the mobile end applied to door lock control system End, the door lock control system further includes door lock controlling terminal, and the mobile terminal is provided with hand vein recognition module, the movement Terminal establishes the communication connection with the door lock controlling terminal, which comprises

The unlocking request from the door lock controlling terminal is received, class information safe to carry is requested in the unlocking；

It is searched and matched first identification method of the safety level information from least one preset identification method；

Obtain user by the hand vein recognition module first refers to vein image；

First finger vein image finger vein template corresponding with first identification method is compared, described in judgement Whether the first finger vein image identifies success；

When the first finger vein image identifies successfully, Xiang Suoshu door lock controlling terminal sends unlocking instruction, and the unlocking refers to Order is used to indicate the door lock controlling terminal control and unlocks.

2. the method according to claim 1, wherein first identification method includes the finger for identifying the first finger Vein image, it is described to compare the first finger vein image finger vein template corresponding with first identification method, To judge whether the first finger vein image identifies success, include:

Obtain the finger vein template of pre-stored first finger；

The finger vein template of first the finger vein image and first finger is compared, to obtain the first similarity；

Judge whether first similarity is more than default similarity threshold；

If first similarity is more than the default similarity threshold, it is determined that the first finger vein image identifies successfully；

If first similarity is no more than the default similarity threshold, it is determined that described first refers to that vein image identification is lost It loses.

3. according to the method described in claim 2, it is characterized in that, it is described by it is described first refer to vein image with it is described first-hand The finger vein template of finger compares, to obtain the first similarity, comprising:

Analyze the described first characteristic point distribution for referring to vein image；

Refer to that vein image carries out circular image interception to described first according to a not concentric of M, obtains M circle and refer to vein figure Picture, the M are the integer greater than 3；

Refer to that target circle is selected in vein image refers to vein image from the M circle, the target circle refers to vein image institute The quantity for the characteristic point for including is greater than the M circle and refers to that other circles in vein image refer to vein image；

The target circle is referred to that the finger vein template of vein image and first finger carries out Feature Points Matching, to obtain State the first similarity.

4. according to the method described in claim 3, it is characterized in that, described refer to vein image and described for the target circle The finger vein template of one finger carries out Feature Points Matching, to obtain first similarity, comprising:

When the target circle refers to the clarity of vein image not less than default clarity threshold, the target circle is referred to quiet All characteristic points and the finger vein template of first finger carry out Feature Points Matching in arteries and veins image, to obtain first phase Like degree；

When the target circle refers to the clarity of vein image less than the default clarity threshold, the target circle is referred to All characteristic points are divided into N category feature point in vein image, and the N is the integer greater than 1, the power of the N category feature point setting Weight is different；

The finger vein template of the N category feature point and first finger is subjected to Feature Points Matching, to obtain first phase Like degree.

5. according to the described in any item methods of claim 2 to 4, which is characterized in that first identification method further includes auxiliary It identifies, before the transmission unlocking instruction to the door lock controlling terminal, the method also includes:

Obtain the first auxiliary identification information of the user；

First auxiliary identification information template that assists in identifying corresponding with first identification method is compared, with judgement Whether first auxiliary identification information identifies success；

Determine that first auxiliary identification information identifies successfully.

6. according to the method described in claim 5, it is characterized in that, first auxiliary identification information is user input First password or the first pattern, it is described to know first auxiliary identification information auxiliary corresponding with first identification method Other template compares, to judge whether first auxiliary identification information identifies success, comprising:

The first password that the user inputs is compared with pre-stored cipher template；

If the first password is identical as the cipher template, it is determined that first auxiliary identification information identifies successfully；

If the first password and the cipher template be not identical, it is determined that the first auxiliary identification information recognition failures；

Alternatively, the first pattern that the user inputs is compared with pre-stored pattern template；

If first pattern is identical as the pattern template, it is determined that first auxiliary identification information identifies successfully；

If first pattern and the pattern template be not identical, it is determined that the first auxiliary identification information recognition failures.

7. according to the method described in claim 5, it is characterized in that, first auxiliary identification information is that first finger is curved Finger vein image when bent, it is described to assist in identifying mould for first auxiliary identification information is corresponding with first identification method Plate compares, to judge whether first auxiliary identification information identifies success, comprising:

Obtain finger vein template when pre-stored first digital flexion；

Finger vein image when by first digital flexion is compared with finger vein template when first digital flexion, To obtain the second similarity；

Judge whether second similarity is more than the default similarity threshold；

If second similarity is more than the default similarity threshold, it is determined that first auxiliary identification information is identified as Function；

If second similarity is no more than the default similarity threshold, it is determined that the first auxiliary identification information identification is lost It loses.

8. a kind of device based on the door lock control for referring to hand vein recognition, which is characterized in that the movement applied to door lock control system Terminal, the door lock control system further include door lock controlling terminal, and the mobile terminal is provided with hand vein recognition module, the shifting Dynamic terminal establishes the communication connection with the door lock controlling terminal, and described device includes communication unit and processing unit, wherein

The communication unit, for receiving the unlocking request from the door lock controlling terminal, the unlocking request is safe to carry Class information；

The processing unit, for being searched from least one preset identification method and the safety level information matched the One identification method；And refer to vein image for obtaining the first of user by the hand vein recognition module；And it is used for institute It states the first finger vein image finger vein template corresponding with first identification method to compare, to judge that first finger is quiet Whether arteries and veins image identifies success；

The communication unit is also used to when the first finger vein image identifies successfully, and Xiang Suoshu door lock controlling terminal is sent Unlocking instruction, the unlocking instruction are used to indicate the door lock controlling terminal control and unlock.

9. a kind of mobile terminal, which is characterized in that including processor, memory, communication interface, and one or more programs, One or more of programs are stored in the memory, and are configured to be executed by the processor, described program packet Include the instruction for executing the step in method as described in any one of claim 1 to 7.

10. a kind of computer readable storage medium, which is characterized in that storage is used for the computer program of electronic data interchange, In, the computer program makes computer execute method as described in any one of claim 1 to 7.