CN114937290A - Fingerprint unlocking method, device and system, electronic equipment and storage medium - Google Patents

Abstract

The present application provides a fingerprint unlocking method, device, system, electronic device and storage medium. The method includes: receiving a partial unlock notification sent by a client, wherein the partial unlock notification carries a preset time period and a preset fingerprint feature, and the preset time period is a time period during which the partial fingerprint is used for unlocking; In the case of fingerprint unlocking information, determine whether the current moment is within the preset time period; in the case of determining that the current moment is within the preset time period, obtain fingerprint characteristics and consecutive unlocking times from the fingerprint unlocking information; The matching degree of the fingerprint feature and the preset fingerprint feature exceeds the matching threshold, and the number of consecutive unlocking times exceeds the preset number of times threshold, then unlocking is performed, wherein the fingerprint feature is a single unlocking fingerprint feature, or at least two unlocking The superposition of fingerprint features. The present application can solve the problem in the prior art that the fingerprint lock cannot be opened due to damaged fingerprints.

Description

A fingerprint unlocking method, device, system, electronic device and storage medium

technical field

The present application relates to the field of identification technology, and in particular, to a fingerprint unlocking method, device, system, electronic device and storage medium.

Background technique

With the advent of the Internet of Things era, the development of smart homes has become a driving industry for the development of contemporary manufacturing, and the era of the Internet of Everything is just around the corner. The fingerprint lock can improve the security of the device and the safety and comfort of the user, but if the user's finger is injured and some fingerprints cannot be recognized, the fingerprint lock will not be unlocked normally, which will bring inconvenience to the user's life.

Aiming at the problem in the prior art that the fingerprint lock cannot be opened due to damaged fingerprints, there is currently no good solution.

SUMMARY OF THE INVENTION

The purpose of the embodiments of the present application is to provide a fingerprint unlocking method, device, system, electronic device and storage medium, so as to solve the problem that the fingerprint lock cannot be opened due to damaged fingerprints. The specific technical solutions are as follows:

In a first aspect, a fingerprint unlocking method is provided, which is applied to a fingerprint unlocking device, and the method includes:

Receive a partial unlock notification sent by the client, wherein the partial unlock notification carries a preset time period and a preset fingerprint feature, and the preset time period is a time period during which the partial fingerprint is used for unlocking;

In the case of detecting fingerprint unlocking information, determine whether the current moment is within the preset time period;

Under the condition that it is determined that the current moment is within a preset time period, obtain fingerprint characteristics and the number of consecutive unlocking times from the fingerprint unlocking information;

If it is determined that the matching degree between the fingerprint feature and the preset fingerprint feature exceeds the matching threshold, and the number of consecutive unlocking times exceeds the preset number of times threshold, the unlocking is performed, wherein the fingerprint feature is a single unlocking fingerprint feature, or at least Superposition of fingerprint features for two unlocks.

Optionally, the determining that the matching degree of the fingerprint feature and the preset fingerprint feature exceeds a matching threshold includes:

Obtaining the undamaged fingerprint feature of the damaged finger from the partial unlock notification, wherein the damaged finger can be identified as a partial fingerprint;

matching the fingerprint feature of the damaged finger used for unlocking with the undamaged fingerprint feature;

If the matching degree between the fingerprint feature and the undamaged fingerprint feature is greater than a first preset ratio, it is determined that the matching degree exceeds a matching threshold.

Optionally, the determining that the matching degree of the fingerprint feature and the preset fingerprint feature exceeds a matching threshold includes:

Obtain all preset fingerprint features of the damaged finger from the partial unlock notification;

matching the fingerprint feature of the damaged finger used for unlocking with the all fingerprint features;

If the matching degree between the fingerprint feature and all the fingerprint features is greater than a second preset ratio, it is determined that the matching degree exceeds a matching threshold, where the first preset ratio is greater than the second preset ratio.

Optionally, the method further includes:

When it is detected that the number of times of fingerprint unlocking of the target finger reaches a set number of times, delete the historical fingerprint information of the target finger in the fingerprint unlocking device;

Send a fingerprint update notification to the client, so that the user can re-record the unlocking fingerprint of the target finger.

In a second aspect, a fingerprint unlocking method is provided, applied to a client, and the method includes:

Determine a preset time period and a preset fingerprint feature according to a user operation, wherein the preset time period is a time period during which the partial fingerprint is used to unlock;

Send the partial unlocking notification carrying the preset time period and the preset fingerprint feature to the fingerprint unlocking device, so that the fingerprint unlocking device is located within the preset time period when the fingerprint unlocking time is determined, and the fingerprint feature and the preset fingerprint feature are in the preset time period. Unlocking occurs when the matching degree exceeds the matching threshold, and the number of consecutive unlocking times exceeds the preset number of times threshold.

Optionally, the preset fingerprint feature is an undamaged fingerprint feature, and the determining the preset fingerprint feature according to the user operation includes:

Use a photographing device to determine the complete fingerprint image of the damaged finger;

Select the undamaged fingerprint area on the complete fingerprint image according to the selection instruction;

The fingerprint features in the undamaged fingerprint area are used as preset fingerprint features.

Optionally, selecting the undamaged fingerprint area on the complete fingerprint image according to the selection instruction includes:

Obtain the undamaged fingerprint area on the complete fingerprint image circled by the user; or,

According to the user's selection, an undamaged fingerprint area is selected from the candidate fingerprint areas of the complete fingerprint image, wherein the complete fingerprint image is divided into at least two candidate fingerprint areas.

In a third aspect, a fingerprint unlocking system is provided, the system comprising:

The client terminal is used to determine the preset time period and the preset fingerprint feature according to the user operation; send the partial unlock notification carrying the preset time period and the preset fingerprint feature to the fingerprint unlocking device, wherein the preset time period is the use of The period during which the partial fingerprint is unlocked;

The fingerprint unlocking device, in the case of detecting the fingerprint unlocking information, determines whether the current moment is within the preset time period; in the case of determining that the current moment is within the preset time period, obtains the fingerprint feature and the fingerprint feature from the fingerprint unlocking information Number of consecutive unlocks; if it is determined that the matching degree between the fingerprint feature and the preset fingerprint feature exceeds the matching threshold, and the number of consecutive unlocks exceeds the preset number of times threshold, then unlocking is performed, and the fingerprint feature is the fingerprint feature of a single unlock, Or a superposition of at least two unlocked fingerprint features.

In a fourth aspect, a fingerprint unlocking device is provided, which is applied to a fingerprint unlocking device, and the device includes:

a receiving module, configured to receive a partial unlock notification sent by the client, wherein the partial unlock notification carries a preset time period and a preset fingerprint feature, and the preset time period is a time period during which the partial fingerprint is used for unlocking;

a determining module, configured to determine whether the current moment is within the preset time period when fingerprint unlocking information is detected;

an acquisition module, configured to acquire fingerprint features and the number of consecutive unlocks from the fingerprint unlocking information when it is determined that the current moment is within a preset time period;

The unlocking module is used for unlocking if it is determined that the matching degree of the fingerprint feature and the preset fingerprint feature exceeds a matching threshold, and the number of consecutive unlocking times exceeds a preset number of times threshold, wherein the fingerprint feature is a single unlocking Fingerprint signature, or a superposition of at least two unlocked fingerprint signatures.

In a fifth aspect, a fingerprint unlocking device is provided, which is applied to a client, and the device includes:

a determination module, configured to determine a preset time period and a preset fingerprint feature according to a user operation, wherein the preset time period is a time period during which the partial fingerprint is used for unlocking;

The sending module is configured to send the partial unlocking notification carrying the preset time period and the preset fingerprint feature to the fingerprint unlocking device, so that the fingerprint unlocking device is located within the preset time period, the fingerprint feature and the fingerprint unlocking time when the fingerprint unlocking device is determined. The matching degree of the preset fingerprint features exceeds the matching threshold, and the unlocking is performed when the number of consecutive unlocking times exceeds the preset number of times threshold.

In a sixth aspect, an electronic device is provided, including a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other through the communication bus;

memory for storing computer programs;

The processor is configured to implement any of the steps of the fingerprint unlocking method when executing the program stored in the memory.

In a seventh aspect, a computer-readable storage medium is provided, wherein a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, any one of the steps of the fingerprint unlocking method is implemented.

Beneficial effects of the embodiments of the present application:

An embodiment of the present application provides a fingerprint unlocking method. In the present application, the fingerprint unlocking device firstly determines that the user's finger is damaged and needs to be unlocked by using a partial fingerprint according to the current moment of unlocking within a preset time period, and then obtains fingerprint characteristics and continuous Number of unlocks, if the number of consecutive unlocks exceeds the preset threshold, it indicates that the user really needs to unlock the device instead of randomly touching the fingerprint to unlock the device. Finally, the fingerprint feature and the preset fingerprint feature are matched. If the matching degree exceeds the matching threshold, it indicates that the fingerprint There are enough features to unlock. If the single fingerprint feature can be unlocked, the single fingerprint feature and the preset fingerprint feature are matched; if the single fingerprint feature is not enough to unlock, the fingerprint features unlocked multiple times are superimposed to increase the fingerprint feature. It is guaranteed that it can be successfully matched with the preset fingerprint characteristics. The present application can solve the problem in the prior art that the fingerprint lock cannot be opened due to damaged fingerprints.

Of course, implementing any product or method of the present application does not necessarily require achieving all of the above advantages simultaneously.

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 that need to be used in the description of the embodiments or the prior art. In other words, on the premise of no creative labor, other drawings can also be obtained from these drawings.

1 is a schematic diagram of a hardware environment of a fingerprint unlocking method provided by an embodiment of the present application;

2 is a flowchart of a method for unlocking a fingerprint according to an embodiment of the present application;

3 is a schematic structural diagram of a fingerprint unlocking device according to an embodiment of the present application;

4 is a schematic structural diagram of another fingerprint unlocking device according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of the embodiments. 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 protection scope of the present application.

In the following description, suffixes such as 'module', 'component' or 'unit' used to represent elements are used only to facilitate the description of the present application, and have no specific meaning per se. Therefore, "module" and "component" can be used interchangeably.

In order to solve the problems mentioned in the background art, according to an aspect of the embodiments of the present application, a fingerprint unlocking system is provided. The system includes: a client, configured to determine a preset time period and preset fingerprint characteristics according to user operations; A local unlock notification with a preset time period and a preset fingerprint feature is sent to the fingerprint unlocking device, where the preset time period is the time period during which the partial fingerprint is used for unlocking; the fingerprint unlocking device determines the current moment when the fingerprint unlocking information is detected Whether it is within the preset time period; if it is determined that the current moment is within the preset time period, obtain the fingerprint feature and the number of consecutive unlocks from the fingerprint unlocking information; if it is determined that the matching degree between the fingerprint feature and the preset fingerprint feature exceeds the matching threshold, and If the number of consecutive unlocks exceeds the preset number of times threshold, the unlocking is performed, and the fingerprint feature is the fingerprint feature of a single unlock, or the superposition of the fingerprint features of at least two unlocks.

Optionally, in this embodiment of the present application, the above fingerprint unlocking method may be applied to a hardware environment composed of a client 101 and a fingerprint unlocking device 103 as shown in FIG. 1 . As shown in FIG. 1 , the fingerprint unlocking device 103 is connected to the client 101 through a network. The above-mentioned network includes but is not limited to: a wide area network, a metropolitan area network or a local area network. The client 101 exists on a PC, mobile phone, tablet computer, etc. The unlocking device 103 may be a smart door lock, a safe lock, a car lock, and other devices that require fingerprint unlocking.

A fingerprint unlocking method in this embodiment of the present application may be performed by the fingerprint unlocking device 103 or by the client 101 , so as to perform fingerprint unlocking even when the fingerprint of the user's finger is damaged.

A fingerprint unlocking method provided by an embodiment of the present application will be described in detail below with reference to the specific implementation manner, as shown in FIG. 2 , and the specific steps are as follows:

Step 201: Receive a local unlock notification sent by the client.

The partial unlock notification carries a preset time period and a preset fingerprint feature, and the preset time period is a time period during which the partial fingerprint is used for unlocking.

In this application, after the Bluetooth module of the fingerprint unlocking device is successfully connected to the client, the voice module of the fingerprint unlocking device prompts for fingerprint entry. At the same time, the Bluetooth signal is transmitted to the client in real time, which is used to synchronize the fingerprint entry on the client. data. The client sends a partial unlock notification to the fingerprint unlocking device when it detects the partial unlock operation set by the user. The partial unlock notification carries the preset time period and the preset fingerprint features for unlocking by using the partial fingerprint. The partial unlock notification is used for Indicates that the fingerprint unlocking device is capable of unlocking with a partial fingerprint.

Step 202: In the case of detecting fingerprint unlocking information, determine whether the current moment is within a preset time period.

In the embodiment of the present application, after the fingerprint unlocking device receives the partial unlocking notification, if the fingerprint unlocking device detects the fingerprint unlocking information when the user unlocks, the current moment for determining the unlocking is obtained, and whether the current moment is within a preset time period is determined. Let the period be the period of unlocking using the partial fingerprint. Exemplarily, if the user's finger is injured on May 18, 2022, and it is expected to recover within 10 days, the preset period is from May 18 to May 28.

If the current time is not within the preset time period, it indicates that the user's finger is not damaged, and the current time does not need to be unlocked with a partial fingerprint, and normal unlocking can be performed; if the current time is within the preset time period, it indicates that the user's finger is damaged, and the current time needs The partial fingerprint is used for unlocking, and step 202 is executed.

Step 203: In the case that it is determined that the current moment is within the preset time period, obtain fingerprint characteristics and the number of consecutive unlocking times from the fingerprint unlocking information.

In the embodiment of the present application, if the fingerprint unlocking device determines that the current moment is within a preset time period, indicating that the user's finger is damaged, the fingerprint feature and the number of consecutive unlocking times are obtained from the fingerprint unlocking information. Two unlocks, for example, three unlocks by the user in one minute.

Step 204: If it is determined that the matching degree of the fingerprint feature and the preset fingerprint feature exceeds the matching threshold, and the number of consecutive unlocking times exceeds the preset number of times threshold, unlocking is performed.

The fingerprint feature is a single unlocking fingerprint feature, or a superposition of at least two unlocking fingerprint features.

In the embodiment of the present application, the fingerprint unlocking device obtains preset fingerprint features from the partial unlock notification, and the preset fingerprint features are all fingerprint features in one user's finger or undamaged fingerprint features in the user's finger. If the fingerprint unlocking device determines that the matching degree between the fingerprint feature and the preset fingerprint feature exceeds the matching threshold, it indicates that there are enough fingerprint features. Unlocking can avoid unlocking the device by randomly touching the fingerprint to unlock the device.

In addition, the fingerprint feature may be a single unlocking fingerprint feature, or a superposition of at least two fingerprint features during unlocking. If the damaged area of the user's finger is large, it is difficult for the fingerprint feature used for unlocking to be recognized every time. So, the superposition of multiple fingerprint features can improve the efficiency of unlocking.

Then the application for unlocking includes the following two ways: one way is that the number of consecutive unlocks exceeds the preset number of times threshold, and the matching degree between the fingerprint feature of a single unlock and the preset fingerprint feature exceeds the matching threshold, then the fingerprint unlocking device is unlocked; One way is that the number of consecutive unlocks exceeds the preset number of times threshold, and the matching degree between the superposition of fingerprint features of multiple unlocks and the preset fingerprint features exceeds the matching threshold, then the fingerprint unlocking device is unlocked.

In this application, the fingerprint unlocking device firstly determines that the user's finger is damaged and needs to be unlocked by using a partial fingerprint according to the current moment of unlocking, and then obtains fingerprint characteristics and the number of consecutive unlocks. If the number of consecutive unlocks exceeds the preset number of times threshold , indicating that the user really needs to unlock the device instead of randomly touching the fingerprint to unlock the device, and finally match the fingerprint features with the preset fingerprint features. If the matching degree exceeds the matching threshold, it indicates that the fingerprint features are enough to unlock. If the single fingerprint feature can be unlocked, the single fingerprint feature and the preset fingerprint feature are matched; if the single fingerprint feature is not enough to unlock, the fingerprint features unlocked multiple times are superimposed to increase the fingerprint feature. It is guaranteed that it can be successfully matched with the preset fingerprint characteristics. The present application can solve the problem in the prior art that the fingerprint lock cannot be opened due to damaged fingerprints.

Optionally, determining that the matching degree of the fingerprint feature and the preset fingerprint feature exceeds the matching threshold includes two embodiments.

In one embodiment, the damaged finger can recognize a partial fingerprint, and the fingerprint unlocking device obtains the undamaged fingerprint feature of the damaged finger from the partial unlock notification, where the undamaged fingerprint feature is a partial fingerprint feature of the damaged finger. The fingerprint unlocking device matches the fingerprint feature of the damaged finger used for unlocking with the undamaged fingerprint feature. If the matching degree is greater than the first preset ratio, it is determined that the matching degree exceeds the matching threshold, and if the matching degree is less than or equal to the first preset ratio ratio, it is determined that the matching degree does not exceed the matching threshold.

In another embodiment, the damaged finger can recognize part of the fingerprint, obtain all preset fingerprint features of the damaged finger from the partial unlock notification, and the fingerprint unlocking device will use the fingerprint feature of the damaged finger for unlocking and the finger If the matching degree is greater than the second preset ratio, it is determined that the matching degree exceeds the matching threshold, and if the matching degree is less than or equal to the second preset ratio, it is determined that the matching degree does not exceed the matching threshold. Wherein, since the detected fingerprint features will decrease after the finger is damaged, the second preset ratio is also reduced, and the first preset ratio is greater than the second preset ratio.

Exemplarily, if the first preset ratio is 80%, then the matching degree between the fingerprint features of the damaged finger and the undamaged fingerprint features is greater than 80%, indicating that the fingerprint features are sufficient; the second preset ratio is 60%, then the The matching degree between the fingerprint features of the damaged finger and all the fingerprint features of the finger is greater than 60%, indicating that the fingerprint features are sufficient.

As an optional implementation manner, determining the preset fingerprint features according to the user operation includes: using a photographing device to determine a complete fingerprint image of the damaged finger; selecting an undamaged fingerprint area on the complete fingerprint image according to a selection instruction; The fingerprint features in the fingerprint area are used as preset fingerprint features.

Before the finger is injured, the user uses the camera to determine the complete fingerprint image of the damaged finger in advance. After the finger is injured, the fingerprint unlocking device generates a selection instruction according to the user's selection, selects the undamaged fingerprint area on the complete fingerprint image, and stores the undamaged fingerprint area on the complete fingerprint image. The fingerprint features in the damaged fingerprint area are used as preset fingerprint features.

Specifically, selecting the undamaged fingerprint area on the complete fingerprint image according to the selection instruction includes: acquiring the undamaged fingerprint area on the complete fingerprint image circled by the user; or, according to the user's selection, from the candidate fingerprints of the complete fingerprint image The undamaged fingerprint area is selected from the area, wherein the complete fingerprint image is divided into at least two candidate fingerprint areas.

In the complete fingerprint image displayed on the client, the user circles the undamaged fingerprint area, or the complete fingerprint image in the client is pre-divided into at least two candidate fingerprint areas. Select the undamaged fingerprint area from the fingerprint area. In this way, the fingerprint unlocking device selects the undamaged fingerprint area on the complete fingerprint image.

As an optional implementation manner, the method further includes: when it is detected that the number of fingerprint unlocking times of the target finger reaches a set number of times, deleting the historical fingerprint information of the target finger in the fingerprint unlocking device, wherein the target finger is a single finger or all Finger; sends a fingerprint update notification to the client to enable the user to re-record the unlocked fingerprint of the target finger.

If the fingerprint unlocking device detects that the number of fingerprint unlocks of the target finger reaches the set number of times, it indicates that there are too many fingerprint traces in the fingerprint unlocking device, which may affect subsequent fingerprint recognition. The historical fingerprint information of the target finger, and then send a fingerprint update notification to the client, and the user re-records the unlocked fingerprint of the target finger according to the client's prompt.

The target finger is a single finger or all fingers, that is, the fingerprint unlocking device detects that the number and value of the fingerprint unlocking times of all fingers reaches the set number, or the number of fingerprint unlocking times of a certain finger reaches the set number.

When the fingerprint unlocking device fails to be unlocked, the door lock recognition module recognizes that the unlocking fails, and the voice module starts the warning mode to broadcast the warning, and feeds it back to the client. If the user touches it by mistake, the client can cancel the warning broadcast. The user can also set the number of false touches and the duration of false touches on the client side. If the fingerprint unlocking device is unlocked by false touches within the false touch time period and the unlocking fails, it may be illegal unlocking, and the fingerprint unlocking device sends a warning message to Client, users can view the warning information through the client. The present application improves the security and reliability performance of a fingerprint unlocking device through an early warning mode and sending early warning information.

Exemplarily, the fingerprint unlocking device is a door lock. If the door lock fails to be unlocked twice within 10 minutes, an early warning message will be sent to the client, and the user can view the situation outside the door in real time through the client's linkage with the door lock cat's eye.

Aiming at the existing fingerprint unlocking devices, this application enriches the reliability of fingerprint unlocking methods, and realizes the security of fingerprints in an all-round way. The preset time period, the preset fingerprint characteristics and the preset number of thresholds are preset, so that the door lock can be unlocked even if the fingerprint is damaged in an emergency.

Based on the same technical concept, an embodiment of the present application also provides a fingerprint unlocking device, which is applied to a fingerprint unlocking device. As shown in FIG. 3 , the device includes:

The receiving module 301 is configured to receive a partial unlock notification sent by the client, wherein the partial unlock notification carries a preset time period and a preset fingerprint feature, and the preset time period is a time period during which the partial fingerprint is used for unlocking;

A determination module 302, configured to determine whether the current moment is within a preset time period when fingerprint unlocking information is detected;

The obtaining module 303 is used to obtain fingerprint characteristics and the number of consecutive unlocking times from the fingerprint unlocking information when it is determined that the current moment is within a preset time period;

The unlocking module 304 is used for unlocking if the matching degree between the fingerprint feature and the preset fingerprint feature exceeds the matching threshold and the number of consecutive unlocking times exceeds the preset number threshold, wherein the fingerprint feature is a single unlocking fingerprint feature, or at least Superposition of fingerprint features for two unlocks.

Optionally, the unlocking module 304 is used to:

Obtain the undamaged fingerprint characteristics of the damaged finger from the partial unlock notification, wherein the damaged finger can be identified as part of the fingerprint;

Match the fingerprint characteristics of the damaged finger used for unlocking with the undamaged fingerprint characteristics;

If the matching degree between the fingerprint feature and the undamaged fingerprint feature is greater than the first preset ratio, it is determined that the matching degree exceeds the matching threshold.

Optionally, the unlocking module 304 is used to:

Obtain all preset fingerprint features of the damaged finger from the partial unlock notification;

Match the fingerprint characteristics of the damaged finger used for unlocking with all fingerprint characteristics;

If the matching degree between the fingerprint feature and all the fingerprint features is greater than the second preset ratio, it is determined that the matching degree exceeds the matching threshold, where the first preset ratio is greater than the second preset ratio.

Optionally, the device is also used for:

When it is detected that the number of fingerprint unlocks of the target finger reaches the set number of times, delete the historical fingerprint information of the target finger in the fingerprint unlocking device;

Send a fingerprint update notification to the client to enable the user to re-record the unlocked fingerprint of the target finger.

The application also provides a fingerprint unlocking device, which is applied to a client. As shown in FIG. 4 , the device includes:

A determination module 401, configured to determine a preset time period and a preset fingerprint feature according to a user operation, wherein the preset time period is a time period during which the partial fingerprint is used for unlocking;

The sending module 402 is used to send the partial unlock notification carrying the preset time period and the preset fingerprint feature to the fingerprint unlocking device, so that the fingerprint unlocking device is located within the preset time period, the fingerprint feature and the preset fingerprint at the moment when the fingerprint unlocking is determined. When the matching degree of the feature exceeds the matching threshold, and the number of consecutive unlocking times exceeds the preset number of times threshold, unlocking is performed.

Optionally, the determining module 401 is used to:

Use a photographing device to determine the complete fingerprint image of the damaged finger;

Select the undamaged fingerprint area on the complete fingerprint image according to the selection instruction;

The fingerprint features in the undamaged fingerprint area are used as preset fingerprint features.

Optionally, the determining module 404 is used to:

Obtain the undamaged fingerprint area on the complete fingerprint image circled by the user; or,

According to the user's selection, an undamaged fingerprint area is selected from the candidate fingerprint areas of the complete fingerprint image, wherein the complete fingerprint image is divided into at least two candidate fingerprint areas.

According to another aspect of the embodiments of the present application, the present application provides an electronic device, as shown in FIG. 5 , including a memory 503 , a processor 501 , a communication interface 502 and a communication bus 504 . The computer program running on 501, the memory 503 and the processor 501 communicate with the communication bus 504 through the communication interface 502, and the processor 501 implements the steps of the above method when executing the computer program.

The memory and the processor in the above electronic device communicate through a communication bus and a communication interface. The communication bus may be a Peripheral Component Interconnect (PCI for short) bus or an Extended Industry Standard Architecture (Extended Industry Standard Architecture, EISA for short) bus or the like. The communication bus can be divided into an address bus, a data bus, a control bus, and the like.

The memory may include random access memory (Random Access Memory, RAM for short), and may also include non-volatile memory (non-volatile memory), such as at least one disk memory. Optionally, the memory may also be at least one storage device located away from the aforementioned processor.

The above-mentioned processor may be a general-purpose processor, including a central processing unit (Central Processing Unit, referred to as CPU), a network processor (Network Processor, referred to as NP), etc.; may also be a digital signal processor (Digital Signal Processing, referred to as DSP) , Application Specific Integrated Circuit (ASIC for short), Field-Programmable Gate Array (FPGA for short) or other programmable logic devices, discrete gate or transistor logic devices, and discrete hardware components.

According to yet another aspect of the embodiments of the present application, there is also provided a computer-readable medium having non-volatile program code executable by a processor.

Optionally, in this embodiment of the present application, a computer-readable medium is configured to store program codes for the processor to execute the above method.

Optionally, for specific examples in this embodiment, reference may be made to the examples described in the foregoing embodiments, and details are not described herein again in this embodiment.

When the embodiments of the present application are specifically implemented, reference may be made to the above-mentioned embodiments, which have corresponding technical effects.

It will be appreciated that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit may be implemented in one or more Application Specific Integrated Circuits (ASIC), Digital Signal Processing (DSP), Digital Signal Processing Device (DSP Device, DSPD), programmable logic Devices (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the functions described in this application or a combination thereof.

For a software implementation, the techniques described herein may be implemented by means of units that perform the functions described herein. Software codes may be stored in memory and executed by a processor. The memory can be implemented in the processor or external to the processor.

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software 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.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the modules is only a logical function division. In actual implementation, there may be other division methods. For example, multiple modules or components may be combined or Can be integrated into 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, mechanical or other forms.

The units described as separate components may or may not be physically separated, and components displayed 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 functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present application can be embodied in the form of software products in essence, or the parts that make contributions to the prior art or the parts of the technical solutions, and the computer software products are stored in a storage medium , including several instructions for causing 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 methods described in the various embodiments of the present application. The aforementioned storage medium includes: a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk and other mediums that can store program codes. It should be noted that, in this document, relational terms such as "first" and "second" etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these There is no such actual relationship or sequence between entities or operations. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

The above descriptions are only specific embodiments of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, this application is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims (12)

1. a fingerprint unlocking method, is characterized in that, is applied to fingerprint unlocking device, and described method comprises: Receive a partial unlock notification sent by the client, wherein the partial unlock notification carries a preset time period and a preset fingerprint feature, and the preset time period is a time period during which the partial fingerprint is used for unlocking; In the case of detecting fingerprint unlocking information, determine whether the current moment is within the preset time period; Under the condition that it is determined that the current moment is within a preset time period, obtain fingerprint characteristics and the number of consecutive unlocking times from the fingerprint unlocking information; If it is determined that the matching degree between the fingerprint feature and the preset fingerprint feature exceeds the matching threshold, and the number of consecutive unlocking times exceeds the preset number of times threshold, the unlocking is performed, wherein the fingerprint feature is a single unlocking fingerprint feature, or at least Superposition of fingerprint features for two unlocks. 2. The method according to claim 1, wherein the determining that the matching degree of the fingerprint feature and the preset fingerprint feature exceeds a matching threshold comprises: Obtaining the undamaged fingerprint feature of the damaged finger from the partial unlock notification, wherein the damaged finger can be identified as a partial fingerprint; matching the fingerprint feature of the damaged finger used for unlocking with the undamaged fingerprint feature; If the matching degree between the fingerprint feature and the undamaged fingerprint feature is greater than a first preset ratio, it is determined that the matching degree exceeds a matching threshold. 3. The method according to claim 1, wherein the determining that the matching degree of the fingerprint feature and the preset fingerprint feature exceeds a matching threshold comprises: Obtain all preset fingerprint features of the damaged finger from the partial unlock notification; matching the fingerprint feature of the damaged finger used for unlocking with the all fingerprint features; If the matching degree between the fingerprint feature and all the fingerprint features is greater than a second preset ratio, it is determined that the matching degree exceeds a matching threshold, where the first preset ratio is greater than the second preset ratio. 4. The method according to claim 1, wherein the method further comprises: When it is detected that the number of times of fingerprint unlocking of the target finger reaches a set number of times, delete the historical fingerprint information of the target finger in the fingerprint unlocking device; Send a fingerprint update notification to the client, so that the user can re-record the unlocking fingerprint of the target finger. 5. A fingerprint unlocking method, characterized in that, applied to a client, the method comprising: Determine a preset time period and a preset fingerprint feature according to a user operation, wherein the preset time period is a time period during which the partial fingerprint is used to unlock; Send the partial unlocking notification carrying the preset time period and the preset fingerprint feature to the fingerprint unlocking device, so that the fingerprint unlocking device is located within the preset time period when the fingerprint unlocking time is determined, and the fingerprint feature and the preset fingerprint feature are in the preset time period. Unlocking occurs when the matching degree exceeds the matching threshold, and the number of consecutive unlocking times exceeds the preset number of times threshold. 6. The method according to claim 5, wherein the preset fingerprint feature is an undamaged fingerprint feature, and the determining the preset fingerprint feature according to a user operation comprises: Use a photographing device to determine the complete fingerprint image of the damaged finger; Select the undamaged fingerprint area on the complete fingerprint image according to the selection instruction; The fingerprint features in the undamaged fingerprint area are used as preset fingerprint features. 7. The method according to claim 6, wherein the selecting the undamaged fingerprint area on the complete fingerprint image according to the selecting instruction comprises: Obtain the undamaged fingerprint area on the complete fingerprint image circled by the user; or, According to the user's selection, an undamaged fingerprint area is selected from the candidate fingerprint areas of the complete fingerprint image, wherein the complete fingerprint image is divided into at least two candidate fingerprint areas. 8. A fingerprint unlocking system, wherein the system comprises: The client terminal is used to determine the preset time period and the preset fingerprint feature according to the user operation; send the partial unlock notification carrying the preset time period and the preset fingerprint feature to the fingerprint unlocking device, wherein the preset time period is the use of The period during which the partial fingerprint is unlocked; The fingerprint unlocking device, in the case of detecting the fingerprint unlocking information, determines whether the current moment is within the preset time period; in the case of determining that the current moment is within the preset time period, obtains the fingerprint feature and the fingerprint feature from the fingerprint unlocking information Number of consecutive unlocks; if it is determined that the matching degree between the fingerprint feature and the preset fingerprint feature exceeds the matching threshold, and the number of consecutive unlocks exceeds the preset number of times threshold, then unlocking is performed, and the fingerprint feature is the fingerprint feature of a single unlock, Or a superposition of at least two unlocked fingerprint features. 9. A fingerprint unlocking device, characterized in that, applied to a fingerprint unlocking device, the device comprising: a receiving module, configured to receive a partial unlock notification sent by the client, wherein the partial unlock notification carries a preset time period and a preset fingerprint feature, and the preset time period is a time period during which the partial fingerprint is used for unlocking; a determining module, configured to determine whether the current moment is within the preset time period when fingerprint unlocking information is detected; an acquisition module, configured to acquire fingerprint features and the number of consecutive unlocks from the fingerprint unlocking information when it is determined that the current moment is within a preset time period; The unlocking module is used for unlocking if it is determined that the matching degree of the fingerprint feature and the preset fingerprint feature exceeds a matching threshold, and the number of consecutive unlocking times exceeds a preset number of times threshold, wherein the fingerprint feature is a single unlocking Fingerprint signature, or a superposition of at least two unlocked fingerprint signatures. 10. A fingerprint unlocking device, characterized in that, applied to a client, the device comprising: a determination module, configured to determine a preset time period and a preset fingerprint feature according to a user operation, wherein the preset time period is a time period during which the partial fingerprint is used for unlocking; The sending module is configured to send the partial unlocking notification carrying the preset time period and the preset fingerprint feature to the fingerprint unlocking device, so that the fingerprint unlocking device is located within the preset time period, the fingerprint feature and the fingerprint unlocking time when the fingerprint unlocking device is determined. The matching degree of the preset fingerprint features exceeds the matching threshold, and the unlocking is performed when the number of consecutive unlocking times exceeds the preset number of times threshold. 11. An electronic device, characterized in that it comprises a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface, and the memory complete mutual communication through the communication bus; memory for storing computer programs; The processor is configured to implement the method steps of any one of claims 1-4 or 5-7 when executing the program stored in the memory. 12. A computer-readable storage medium, wherein a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, the method of any one of claims 1-4 or 5-7 is implemented step.

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