CN106250817A - A kind of fingerprint identification method and device - Google Patents

Abstract

The present invention relates to technical field of image processing, particularly relate to a kind of fingerprint identification method and device, comprise determining that the finger print data that finger print detecting module detects；According to finger print data, perform the first process, when the first process exports the first recognition failures identification information, according to finger print data, perform the second process；According to the second identification successful identification information of described second process output, what triggering was preset is identified as merit control instruction.The present invention has the beneficial effect that: the advantage combining two kinds of fingerprint identification methods, compared to characteristic point Comparison Method, owing to having continued executing with image Comparison Method, improves the success rate once identified, decreases the situation needing user to repeat typing.

Description

A fingerprint identification method and device

technical field

The invention relates to the technical field of image processing, in particular to a fingerprint identification method and device.

Background technique

Most of the fingerprint mobile phones currently on the market use the feature point comparison method. This method has certain requirements for the number of feature points during fingerprint entry. It can only be completed after reaching the required number of feature points. One unlock action. The number of feature points has a clear relationship with the size of the fingerprint. The larger the fingerprint area, the more feature points will be extracted from this fingerprint. Conversely, the smaller the fingerprint area, the more feature points that can be extracted. few. In the process of unlocking the mobile phone, the area touched by the human hand on the surface of the fingerprint module is unstable. When the pressure is high, the detection area is relatively large, and the effective fingerprint detection area is also large. Gently touch the surface of the fingerprint module with your stomach. At this time, there may be a problem, that is, the touched area is too small to extract an effective number of feature points. As a result, the fingerprint identification fails, requiring the user to re-enter the fingerprint for identification, which reduces the success rate of fingerprint identification.

To sum up, the fingerprint identification method in the prior art has the technical problem that the identification success rate is not high.

Contents of the invention

The invention provides a fingerprint identification method and device, which are used to solve the technical problem that the identification success rate of the fingerprint identification method in the prior art is not high.

On the one hand, an embodiment of the present invention provides a fingerprint identification method, including:

Determine the fingerprint data detected by the fingerprint detection module;

According to the fingerprint data, execute a first process, the first process is to perform fingerprint recognition on the fingerprint data according to the feature point comparison method;

When the first process outputs the first identification failure identification information, a second process is executed according to the fingerprint data, and the second process is to perform fingerprint identification on the fingerprint data according to an image comparison method;

According to the second recognition success identification information output by the second process, a preset recognition success control instruction is triggered.

On the other hand, an embodiment of the present invention provides a fingerprint identification device, including:

A determination unit, configured to determine the fingerprint data detected by the fingerprint detection module;

A processing unit, configured to execute a first process based on the fingerprint data, the first process is to perform fingerprint identification on the fingerprint data according to the feature point comparison method; output first identification failure identification information in the first process When, according to the fingerprint data, execute the second process, the second process is to perform fingerprint identification on the fingerprint data according to the image comparison method;

An output unit, configured to trigger a preset recognition success control instruction according to the second recognition success identification information output by the second process.

According to the method provided by the embodiment of the present invention, the fingerprint data detected by the fingerprint detection module is determined; according to the fingerprint data, a first process is executed, and the first process is to perform fingerprint recognition on the fingerprint data according to a feature point comparison method; When the first process outputs the first identification failure identification information, execute the second process according to the fingerprint data, the second process is to perform fingerprint identification on the fingerprint data according to the image comparison method; according to the first process The second recognition success identification information output by the second process triggers a preset recognition success control instruction. The beneficial effects of the present invention are as follows: the method firstly performs the feature point comparison method, and when the feature point comparison method fails, the image comparison method is performed. Compared with the feature point comparison method in the prior art, due to the continuous execution The image comparison method is improved, thus improving the success rate of one-time recognition and reducing the need for repeated input by users.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 provides a kind of fingerprint recognition method flowchart for the embodiment of the present invention;

Fig. 2 provides a detailed flowchart of a fingerprint identification method according to an embodiment of the present invention;

Fig. 3 provides a detailed flowchart of a fingerprint identification method according to an embodiment of the present invention;

Fig. 4 is a schematic diagram of a fingerprint identification device provided by an embodiment of the present invention.

detailed description

In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

As shown in Figure 1, a flowchart of a fingerprint identification method provided by an embodiment of the present invention includes:

Step 101, determine the fingerprint data detected by the fingerprint detection module;

Step 102. Execute a first process according to the fingerprint data, and the first process is to perform fingerprint recognition on the fingerprint data according to the feature point comparison method;

Step 103, when the first process outputs the first identification failure identification information, execute the second process according to the fingerprint data, the second process is to perform fingerprint identification on the fingerprint data according to the image comparison method;

Step 104: Trigger a preset recognition success control instruction according to the second recognition success identification information output by the second process.

The applicable scenario of the embodiment of the present invention is: the fingerprint identification area of the fingerprint identification module is larger than the first threshold, wherein the fingerprint module is used to receive user's fingerprint entry and perform fingerprint identification. When the user needs to perform fingerprint identification, the method of the embodiment of the present invention can be used. For example, when the user uses a mobile phone, it needs to be unlocked and unlocked by fingerprint; The embodiment of the present invention is applicable to all application scenarios that require fingerprint identification.

An image comparison method has appeared in the prior art, that is, a method for verifying only by comparing the consistency of fingerprint images. When the fingerprint identification area is reduced to a certain extent, such as less than the first threshold, it is difficult to obtain enough feature points. At this time, the image comparison method makes up for this problem. For a small fingerprint, image comparison The alignment method has a higher success rate than the feature point alignment method.

Although the image comparison method can have a higher success rate when the fingerprint identification area is small, there are still some problems, mainly: the image comparison method is more complicated, and it is necessary to compare the similarity of each part of the fingerprint image. More processor resources are required, and the comparison time is relatively long. Based on the data released by the manufacturer in 2016, the feature point comparison method can achieve unlocking within 100ms, while the image comparison method cannot be shortened to within 100ms.

In the above step 101, when the user needs to perform fingerprint identification, the fingerprint detection module can detect the fingerprint data entered by the user through the fingerprint module by touching the surface of the fingerprint module with a finger.

In the above step 102, a first process is executed according to the fingerprint data, and the first process is to perform fingerprint recognition on the fingerprint data according to the feature point comparison method.

Since the method of fingerprint recognition by feature point comparison belongs to the existing technology, the embodiment of the present invention does not describe the specific implementation process of this method in detail, and the specific implementation method can refer to the existing technical solutions.

In this step, fingerprint identification is performed on the fingerprint data by executing the first process. According to the result of fingerprint identification, the following descriptions are made respectively.

Scenario 1: The first process outputs the first identification failure identification information

That is, in the above step 103, the first process outputs the first identification failure identification information, then according to the fingerprint data, the second process is executed, and the second process is to fingerprint the fingerprint data according to the image comparison method. identify.

Since the fingerprint recognition method based on the image comparison method belongs to the existing technology, the embodiment of the present invention does not describe the specific implementation process of this method in detail, and the specific implementation method can refer to the existing technical solutions.

Further, according to the fingerprint identification result of the second process, the following two situations are specifically introduced.

1. The second process outputs the second recognition success identification information

That is, in the above step 104, according to the second recognition success identification information output by the second process, a preset recognition success control instruction is triggered.

Therefore, when the first process outputs the first identification information of identification failure, and the second process outputs the second identification information of identification success, a preset identification success control instruction is triggered.

2. The second process outputs the second recognition failure identification information

Optionally, the preset identification failure identification information is triggered according to the second identification failure identification information output by the second process.

Therefore, when the first process outputs the first recognition failure identification information, and the second process outputs the second recognition failure identification information, the preset identification failure identification information is triggered.

Scenario 2: The first recognition success identification information output by the first process

Optionally, the preset identification success control instruction is triggered according to the first identification success identification information output by the first process.

Therefore, when the first process outputs the first identification information of successful identification, the preset identification information of successful identification is directly triggered. Also, the second process does not need to be executed.

Therefore, in the above-mentioned situation 1 and situation 2, what the embodiment of the present invention implements is to execute serially the first process (the first process is to perform fingerprint recognition on the fingerprint data according to the feature point comparison method) and the second process (the The second process is to perform fingerprint recognition on the fingerprint data according to the image comparison method), specifically because in practical applications, the feature point comparison method has a faster comparison speed, so in the embodiment of the present invention, the feature point comparison method is first performed. The point comparison method, that is, the first process is first executed, and when the first process outputs the first identification failure identification information, the image comparison method is performed, that is, the second process is executed, and when the second identification of the second process is successful identification information, then Indicates that the image comparison method is successful in fingerprint identification, so the preset identification success control command is triggered; when the second process outputs the second identification failure identification information, the preset identification failure identification information is triggered, so the two fingerprint identification methods are both The recognition failure indicates that the fingerprint recognition result is a failure, thus triggering the preset recognition failure identification information. Of course, when the first process outputs the first recognition success identification information, it indicates that the feature point comparison method has successfully identified the fingerprint, and the preset identification success identification information is directly triggered.

In the embodiment of the present invention, the fingerprint data detected by the fingerprint detection module is determined; according to the fingerprint data, the first process is executed, and the first process is to perform fingerprint recognition on the fingerprint data according to the feature point comparison method; When the first process outputs the first identification failure identification information, according to the fingerprint data, execute the second process, the second process is to perform fingerprint identification on the fingerprint data according to the image comparison method; output according to the second process The second recognition success identification information triggers a preset recognition success control instruction. The beneficial effects of the present invention are as follows: first, the feature point comparison method is performed, and when the feature point comparison method fails, the image comparison method is performed, which combines the advantages of the two fingerprint identification methods, compared with the feature point comparison method in the prior art. The point comparison method, due to the continued execution of the image comparison method, thus improves the success rate of a recognition and reduces the need for users to repeatedly enter the situation; compared with the image comparison method in the prior art, due to the prior implementation The feature point comparison method, because there is a certain probability that the fingerprint recognition area is sufficient when the user performs fingerprint entry, so in a certain probability, the feature point comparison method is more successful earlier, which can increase the speed of a recognition.

The above method is described in detail below in conjunction with FIG. 2, wherein FIG. 2 is a detailed flow chart of the fingerprint identification method provided by the embodiment of the present invention, including the following steps:

Step 201, determine the fingerprint data detected by the fingerprint detection module, and generate an interrupt signal;

Step 202, the User layer generates a first fingerprint identification instruction according to the interrupt signal, and sends the first fingerprint identification instruction to the TZ module;

In this step, the User layer generates the first fingerprint recognition instruction according to the interrupt signal, and then sends it to the TZ module. Among them, the User layer (User layer) is mainly used to interact with the user and process upper-layer signaling. In the current mobile terminal application Among them, the fingerprint recognition function is mainly integrated in the TZ (trustzone) module.

Step 203, the TZ module creates the first process according to the first fingerprint identification instruction;

Step 204, the TZ module acquires the fingerprint data from the fingerprint detection module, and performs fingerprint identification on the fingerprint data according to the first process;

Wherein, the TZ module creates a first process after receiving the first fingerprint identification instruction, and then the TZ module directly acquires fingerprint data from the fingerprint detection module, so that the first process identifies the acquired fingerprint data through the feature point identification method.

Step 205, the User layer generates a second fingerprint identification instruction when the first process outputs the first identification failure identification information, and sends the second fingerprint identification instruction to the TZ module;

Step 206, the TZ module creates the second process according to the second fingerprint identification instruction;

Wherein, the TZ module creates a second process after receiving the second fingerprint identification instruction.

Step 207, the TZ module acquires the fingerprint data from the fingerprint detection module, and performs fingerprint identification on the fingerprint data according to the second process;

The TZ module directly obtains the fingerprint data from the fingerprint detection module, so that the second process can identify the obtained fingerprint data through an image comparison method.

Step 208, the User layer triggers a preset recognition success control instruction according to the second recognition success identification information output by the second process.

Of course, in the above step 205, if the first process outputs the first identification information of successful identification, a preset control instruction of successful identification is triggered.

In the above step 208, if the second process outputs the second recognition failure identification information, a preset recognition failure control instruction is triggered.

In the embodiment of the present invention, the fingerprint data detected by the fingerprint detection module is determined; according to the fingerprint data, the first process is executed, and the first process is to perform fingerprint recognition on the fingerprint data according to the feature point comparison method; When the first process outputs the first identification failure identification information, according to the fingerprint data, execute the second process, the second process is to perform fingerprint identification on the fingerprint data according to the image comparison method; output according to the second process The second recognition success identification information triggers a preset recognition success control instruction. The beneficial effects of the present invention are as follows: first, the feature point comparison method is performed, and when the feature point comparison method fails, the image comparison method is performed, which combines the advantages of the two fingerprint identification methods, compared with the feature point comparison method in the prior art. The point comparison method, due to the continued execution of the image comparison method, thus improves the success rate of a recognition and reduces the need for users to repeatedly enter the situation; compared with the image comparison method in the prior art, due to the prior implementation The feature point comparison method, because there is a certain probability that the fingerprint recognition area is sufficient when the user performs fingerprint entry, so in a certain probability, the feature point comparison method is more successful earlier, which can increase the speed of a recognition.

For the fingerprint identification method described in Figure 2 above, there are the following characteristics:

1) The User layer acts as the main control, and generates two fingerprint recognition instructions successively. The feature point comparison process and image comparison process executed in the TZ module run relatively independently and feed back the results independently.

2) The User layer receives the feedback results of the two processes respectively, and executes corresponding actions.

The problem with the fingerprint identification method shown in Figure 2 above is that there is a big change to the original process of the mobile phone, because the existing mobile phone User layer only initiates a fingerprint identification command, while the method in the above Figure 2 User layer It is necessary to initiate two fingerprint identification commands, thus requiring major changes to the existing User layer. For this reason, another fingerprint identification method is given below, in which the User layer only needs to send one fingerprint identification command to achieve Fingerprint identification is consistent with the action of the User layer in the existing technical solution.

Specifically, the feature point comparison process and image comparison process can be encapsulated into the black box of TZ. The User layer only initiates a fingerprint comparison and receives the fingerprint recognition result from TZ. Then the whole process will be the same as the original User of the mobile phone. Layer control process is consistent. At this time, TZ, as a black box, accepts the recognition task sent by the User layer, and feeds back the recognition result to the User layer. Inside the TZ black box, the two sets of comparisons are serially processed, and the final result of the comparison is sent to the User layer. Specific instructions are given below.

As shown in Figure 3, it is a detailed flowchart of a fingerprint identification method provided by the embodiment of the present invention, including the following steps:

Step 301, determine the fingerprint data detected by the fingerprint detection module, and generate an interrupt signal;

Step 302, the User layer generates a fingerprint recognition command according to the interrupt signal and sends it to the TZ module;

In this step, the User layer only generates a fingerprint recognition command and sends it to the TZ module. The function of the User layer is consistent with that of the prior art when the User layer performs fingerprint identification, so that the development work of the User layer can be reduced, and it is more convenient to apply the method of the present invention to practical applications.

Step 303, the TZ module creates the first process according to the fingerprint identification instruction;

In this step, when the TZ module receives the fingerprint identification instruction, it creates a first process according to the fingerprint identification instruction.

Step 304, the TZ module acquires the fingerprint data from the fingerprint detection module, and performs fingerprint identification on the fingerprint data according to the first process;

Step 305, the TZ module creates the second process when the first process outputs the first identification failure identification information;

Step 306, the TZ module acquires the fingerprint data from the fingerprint detection module, and performs fingerprint recognition on the fingerprint data according to the second process;

Step 307, the TZ module generates a fingerprint recognition success message according to the second recognition success identification information output by the second process, and sends the fingerprint recognition success message to the User layer;

In this step, if the TZ module generates a fingerprint recognition success message according to the second recognition success identification information output by the second process, and sends the fingerprint recognition success message to the User layer

Of course, if the first process outputs the first recognition success identification information, then also generate a fingerprint identification success message and send it to the User layer; if the first process outputs the first identification failure identification information and the second process outputs the second identification failure identification information, Then generate a fingerprint recognition failure message and send it to the User layer.

That is, in step 307, the final identification result is determined by the TZ module, and a fingerprint identification message is generated and sent to the User layer (the fingerprint identification message is a fingerprint identification success message or a fingerprint identification failure message).

Step 308, the User layer triggers a preset identification success control instruction according to the fingerprint identification success message.

The main difference between the fingerprint identification method shown in above Figure 3 and the fingerprint identification method shown in Figure 2 above is:

First, the User layer only sends a fingerprint identification instruction to the TZ module. After receiving the fingerprint identification instruction, the TZ module respectively creates a first process and a second process, and serially executes the first process and the second process.

Second, the TZ module determines the final recognition result, and generates a fingerprint recognition success message or a fingerprint recognition failure message accordingly, and sends it to the User layer, and then the User layer triggers the preset recognition success control command or triggers the preset recognition failure Control instruction.

Compared with the fingerprint identification method shown in Figure 2, the fingerprint identification method shown in Figure 3 realizes the encapsulation of the TZ module, thereby realizing the same execution process of the User layer and the User layer in the prior art, that is, only It only needs to send a fingerprint recognition command, which improves the development efficiency and saves the cost in practical application.

In the embodiment of the present invention, the fingerprint data detected by the fingerprint detection module is determined; according to the fingerprint data, the first process is executed, and the first process is to perform fingerprint recognition on the fingerprint data according to the feature point comparison method; When the first process outputs the first identification failure identification information, according to the fingerprint data, execute the second process, the second process is to perform fingerprint identification on the fingerprint data according to the image comparison method; output according to the second process The second recognition success identification information triggers a preset recognition success control instruction. The beneficial effects of the present invention are as follows: first, the feature point comparison method is performed, and when the feature point comparison method fails, the image comparison method is performed, which combines the advantages of the two fingerprint identification methods, compared with the feature point comparison method in the prior art. The point comparison method, due to the continued execution of the image comparison method, thus improves the success rate of a recognition and reduces the need for users to repeatedly enter the situation; compared with the image comparison method in the prior art, due to the prior implementation The feature point comparison method, because there is a certain probability that the fingerprint recognition area is sufficient when the user performs fingerprint entry, so in a certain probability, the feature point comparison method is more successful earlier, which can increase the speed of a recognition.

Based on the same technical concept, the embodiment of the present invention also provides a fingerprint identification device, as shown in Figure 4, including:

A determination unit 401, configured to determine the fingerprint data detected by the fingerprint detection module;

The processing unit 402 is configured to execute a first process according to the fingerprint data, the first process is to perform fingerprint identification on the fingerprint data according to the feature point comparison method; output a first identification failure mark in the first process information, according to the fingerprint data, execute the second process, the second process is to perform fingerprint recognition on the fingerprint data according to the image comparison method;

The output unit 403 is configured to trigger a preset recognition success control instruction according to the second recognition success identification information output by the second process.

Optionally, the output unit 403 is further configured to:

The preset identification success control instruction is triggered according to the first identification success identification information output by the first process.

Optionally, the output unit 403 is further configured to:

Trigger preset identification failure identification information according to the second identification failure identification information output by the second process.

Optionally, the determining unit 401 is specifically configured to:

Determine the fingerprint data detected by the fingerprint detection module, and generate an interrupt signal;

The processing unit 402 is specifically used for:

Generate a first fingerprint identification instruction according to the interrupt signal through the user User layer, and send the first fingerprint identification instruction to the TZ module;

creating the first process according to the first fingerprint identification instruction through the TZ module;

Obtain the fingerprint data from the fingerprint detection module through the TZ module, and perform fingerprint identification on the fingerprint data according to the first process;

The processing unit 402 is further configured to:

Generate a second fingerprint identification instruction through the User layer when the first process outputs the first identification failure identification information, and send the second fingerprint identification instruction to the TZ module;

creating the second process according to the second fingerprint identification instruction through the TZ module;

Obtain the fingerprint data from the fingerprint detection module through the TZ module, and perform fingerprint recognition on the fingerprint data according to the second process;

The output unit 403 is specifically used for:

A preset recognition success control instruction is triggered by the User layer according to the second recognition success identification information output by the second process.

Optionally, the determining unit 401 is specifically used to

Determine the fingerprint data detected by the fingerprint detection module, and generate an interrupt signal;

The processing unit 402 is specifically used for:

Generate a fingerprint recognition instruction according to the interrupt signal through the User layer and send it to the TZ module;

Create the first process according to the fingerprint identification instruction through the TZ module;

Obtain the fingerprint data from the fingerprint detection module through the TZ module, and perform fingerprint identification on the fingerprint data according to the first process;

The processing unit 402 is further configured to:

Create the second process when the first process outputs the first identification failure identification information through the TZ module;

Obtain the fingerprint data from the fingerprint detection module through the TZ module, and perform fingerprint recognition on the fingerprint data according to the second process;

The output unit 403 is specifically used for:

Generate a fingerprint recognition success message by the TZ module according to the second recognition success identification information output by the second process, and send the fingerprint recognition success message to the User layer;

A preset identification success control instruction is triggered by the User layer according to the fingerprint identification success message.

In the embodiment of the present invention, the fingerprint data detected by the fingerprint detection module is determined; according to the fingerprint data, the first process is executed, and the first process is to perform fingerprint recognition on the fingerprint data according to the feature point comparison method; When the first process outputs the first identification failure identification information, according to the fingerprint data, execute the second process, the second process is to perform fingerprint identification on the fingerprint data according to the image comparison method; output according to the second process The second recognition success identification information triggers a preset recognition success control instruction. The beneficial effects of the present invention are as follows: first, the feature point comparison method is performed, and when the feature point comparison method fails, the image comparison method is performed, which combines the advantages of the two fingerprint identification methods, compared with the feature point comparison method in the prior art. The point comparison method, due to the continued execution of the image comparison method, thus improves the success rate of a recognition and reduces the need for users to repeatedly enter the situation; compared with the image comparison method in the prior art, due to the prior implementation The feature point comparison method, because there is a certain probability that the fingerprint recognition area is sufficient when the user performs fingerprint entry, so in a certain probability, the feature point comparison method is more successful earlier, which can increase the speed of a recognition.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

While preferred embodiments of the present invention have been described, additional changes and modifications can be made to these embodiments by those skilled in the art once the basic inventive concept is appreciated. Therefore, it is intended that the appended claims be construed to cover the preferred embodiment as well as all changes and modifications which fall within the scope of the invention.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (10)

1. a fingerprint identification method, it is characterised in that including:

Determine the finger print data that finger print detecting module detects；

According to described finger print data, performing the first process, described first process is to described fingerprint number according to characteristic point Comparison Method According to carrying out fingerprint recognition；

When described first process exports the first recognition failures identification information, according to described finger print data, perform the second process, institute Second process of stating is for carry out fingerprint recognition according to image Comparison Method to described finger print data；

According to the second identification successful identification information of described second process output, what triggering was preset is identified as merit control instruction.

2. the method for claim 1, it is characterised in that described according to described finger print data, after performing the first process, Also include:

According to the first identification successful identification information of described first process output, trigger the described default power control system that is identified as and refer to Order.

3. the method for claim 1, it is characterised in that described according to described finger print data, after performing the second process, Also include:

According to the second recognition failures identification information of described second process output, trigger the recognition failures identification information preset.

4. the method as according to any one of claim 1-3, it is characterised in that described determine what finger print detecting module detected Finger print data, including:

Determine the finger print data that finger print detecting module detects, and generate interrupt signal；

Described according to described finger print data, perform the first process, including:

User's User layer generates the first fingerprint recognition instruction according to described interrupt signal, and described first fingerprint recognition instruction is sent out Give TZ module；

Described TZ module creates described first process according to described first fingerprint recognition instruction；

Described TZ module obtains described finger print data from described finger print detecting module, and according to described first process to described fingerprint Data carry out fingerprint recognition；

Described according to described finger print data, perform the second process, including:

Described User layer, when described first process exports the first recognition failures identification information, generates the second fingerprint recognition instruction, And described second fingerprint recognition instruction is sent to TZ module；

Described TZ module creates described second process according to described second fingerprint recognition instruction；

Described TZ module obtains described finger print data from described finger print detecting module, and according to described second process to described fingerprint Data carry out fingerprint recognition；

Described the second identification successful identification information according to described second process output, triggers the power control system that is identified as preset and refers to Order, including:

Described User layer is according to the second identification successful identification information of described second process output, and what triggering was preset is identified as power control System instruction.

5. the method for claim 1, it is characterised in that the described finger print data determining that finger print detecting module detects, Including:

Determine the finger print data that finger print detecting module detects, and generate interrupt signal；

Described according to described finger print data, perform the first process, including:

User layer generates fingerprint recognition according to described interrupt signal and instructs and be sent to TZ module；

Described TZ module creates described first process according to the instruction of described fingerprint recognition；

Described TZ module obtains described finger print data from described finger print detecting module, and according to described first process to described fingerprint Data carry out fingerprint recognition；

Described according to described finger print data, perform the second process, including:

Described TZ module, when described first process exports the first recognition failures identification information, creates described second process；

Described TZ module obtains described finger print data from described finger print detecting module, and according to described second process to described fingerprint Data carry out fingerprint recognition；

Described the second identification successful identification information according to described second process output, triggers the power control system that is identified as preset and refers to Order, including:

Described TZ module, according to the second identification successful identification information of described second process output, generates fingerprint recognition success message And described fingerprint recognition success message is sent to described User layer；

Described User layer is according to described fingerprint recognition success message, and what triggering was preset is identified as merit control instruction.

6. a fingerprint identification device, it is characterised in that including:

Determine unit, for determining the finger print data that finger print detecting module detects；

Processing unit, for according to described finger print data, performs the first process, and described first process is according to characteristic point Comparison Method Described finger print data is carried out fingerprint recognition；When described first process exports the first recognition failures identification information, according to described Finger print data, performs the second process, and described second process is for carry out fingerprint recognition according to image Comparison Method to described finger print data；

Output unit, for the second identification successful identification information according to described second process output, triggers default being identified as Merit control instruction.

7. device as claimed in claim 6, it is characterised in that described output unit, is additionally operable to:

According to the first identification successful identification information of described first process output, trigger the described default power control system that is identified as and refer to Order.

8. device as claimed in claim 6, it is characterised in that described output unit, is additionally operable to:

According to the second recognition failures identification information of described second process output, trigger the recognition failures identification information preset.

9. the device as according to any one of claim 6-8, it is characterised in that described determine unit, specifically for:

Determine the finger print data that finger print detecting module detects, and generate interrupt signal；

Described processing unit, specifically for:

Generate the first fingerprint recognition by user's User layer according to described interrupt signal to instruct, and described first fingerprint recognition is referred to Order is sent to TZ module；

Described first process is created according to described first fingerprint recognition instruction by described TZ module；

Described finger print data is obtained from described finger print detecting module by described TZ module, and according to described first process to described Finger print data carries out fingerprint recognition；

Described processing unit, is additionally operable to:

By described User layer when described first process exports the first recognition failures identification information, generate the second fingerprint recognition and refer to Order, and described second fingerprint recognition instruction is sent to TZ module；

Described second process is created according to described second fingerprint recognition instruction by described TZ module；

Described finger print data is obtained from described finger print detecting module by described TZ module, and according to described second process to described Finger print data carries out fingerprint recognition；

Described output unit, specifically for:

By described User layer according to the second identification successful identification information of described second process output, trigger default being identified as Merit control instruction.

10. device as claimed in claim 6, it is characterised in that described determine unit, specifically for

Determine the finger print data that finger print detecting module detects, and generate interrupt signal；

Described processing unit, specifically for:

Generate fingerprint recognition by User layer according to described interrupt signal and instruct and be sent to TZ module；

Described first process is created according to the instruction of described fingerprint recognition by described TZ module；

Described finger print data is obtained from described finger print detecting module by described TZ module, and according to described first process to described Finger print data carries out fingerprint recognition；

Described processing unit, is additionally operable to:

By described TZ module when described first process exports the first recognition failures identification information, create described second process；

Described finger print data is obtained from described finger print detecting module by described TZ module, and according to described second process to described Finger print data carries out fingerprint recognition；

Described output unit, specifically for:

By described TZ module according to the second identification successful identification information of described second process output, generate fingerprint recognition success Described fingerprint recognition success message is also sent to described User layer by message；

By described User layer according to described fingerprint recognition success message, what triggering was preset is identified as merit control instruction.