CN105550565A - Unlocking method and device - Google Patents

Abstract

The invention discloses an unlocking method and a device, wherein the method comprises the following steps: acquiring sliding track information input by a user on an unlocking interface; generating target pattern information according to the input sliding track information, and extracting a target digital combination from the sliding track information; judging whether the target pattern information is matched with preset unlocking pattern information or not and whether the target digital combination is matched with a preset unlocking digital combination or not; and when the judgment results are all yes, executing the unlocking operation. By the method, even if the gesture pattern is acquired by others, the real unlocking password cannot be acquired, so that the personal information safety is protected.

Description

An unlocking method and device

technical field

The present invention relates to the field of intelligent terminals, in particular to an unlocking method and device.

Background technique

At present, most smart terminals use touch screens, and the use of touch screens can make users operate smart terminals more conveniently and quickly. However, the touch screen also brings many troubles to the user, such as making a call to others or changing the settings of the smart terminal by accidentally touching a button on the touch screen. At present, most device terminals are equipped with touch screen locking and unlocking functions, wherein the unlocking method of inputting a gesture pattern on the touch screen is widely used because of its simplicity and speed. However, the unlocking method provided by the gesture pattern in the prior art is easy to be peeped and stolen. If the gesture pattern is set simply, it is easy for others to break through, resulting in the leakage of personal information.

Contents of the invention

The technical problem to be solved by the embodiments of the present invention is to provide an unlocking method and device, which can realize that the timing gesture pattern can be obtained by others, and the real unlocking password cannot be obtained, so as to protect the security of personal information.

The present invention provides an unlocking method, comprising:

Obtain the sliding track information input by the user on the unlock interface;

generating target pattern information according to the input sliding track information, and extracting target digital combinations from the sliding track information;

Judging whether the target pattern information matches the preset unlocking pattern information, and whether the target number combination matches the preset unlocking number combination;

When the judgment results are all yes, the unlocking operation is performed.

Optionally, before the unlocking interface acquires the sliding track information input by the user, it further includes:

Displaying pattern dots for unlocking in the unlocking interface;

The sliding track information is information input based on the pattern matrix.

Optionally, the generating target pattern information according to the input sliding track information includes: connecting and combining the pattern dots that the sliding track passes through sequentially to form the target pattern information;

The extracting the target digital combination from the sliding track information includes:

When the sliding track draws the pattern grid points sequentially, the residence time at each pattern grid point is obtained, corresponding numbers are generated according to the residence time, and the generated numbers are sequentially combined to obtain the target number combination.

Optionally, the extracting the target digital combination from the sliding track information also includes:

When the sliding track touches each pattern grid point, prompt information is generated to prompt the digital information generated by the pattern grid point.

Optionally, the prompt information includes at least one of the following:

Vibration, prompt sound, indicator light, or digital information is generated on the pattern grid point or within a preset range around it.

An unlocking device comprising:

An acquisition unit, configured to acquire sliding track information input by the user on the unlocking interface;

generating an extraction unit for generating target pattern information according to the input sliding track information, and extracting target digital combinations from the sliding track information;

A judging unit, configured to judge whether the target pattern information matches the preset unlocking pattern information, and whether the target number combination matches the preset unlocking number combination;

The execution unit is configured to execute the unlocking operation when the judgment results are all yes.

Optionally, the device also includes:

A display unit, configured to display pattern dots for unlocking in the unlocking interface;

The sliding track information is information input based on the pattern matrix.

Optionally, the generating and extracting unit is also used to:

Connecting and combining the pattern grid points that the sliding track passes through in sequence to form the target pattern information;

When the sliding track draws the pattern grid points sequentially, the residence time at each pattern grid point is obtained, corresponding numbers are generated according to the residence time, and the generated numbers are sequentially combined to obtain the target number combination.

Optionally, the device also includes:

The prompting unit is configured to generate prompt information when the sliding track draws each pattern lattice point, so as to prompt the digital information generated by the pattern lattice point.

Optionally, the prompt information includes at least one of the following:

Vibration, prompt sound, indicator light, or digital information is generated on the pattern grid point or within a preset range around it.

In the above invention, by obtaining the sliding track information input by the user on the unlocking interface, generating target pattern information according to the input sliding track information, and extracting the target number combination from the sliding track information, judging whether the target pattern information matches the preset unlocking pattern information , and whether the target number combination matches the preset unlock number combination, when the judgment result is yes, the unlock operation is performed. This method can realize that even if the gesture pattern is obtained by others, the real unlock password cannot be obtained, thereby protecting personal information Safety.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a flowchart of an unlocking method provided by an embodiment of the present invention;

Fig. 2 is a schematic diagram of an embodiment of an unlocking interface provided by the present invention;

Fig. 3 is a flowchart of an unlocking method provided by another embodiment of the present invention;

Fig. 4 is a schematic diagram of an interface of an embodiment of preset unlocking pattern information provided by the present invention;

Fig. 5 is a schematic diagram of the interface of an embodiment of the input sliding track information provided by the present invention;

Fig. 6 is a schematic diagram of another embodiment of input sliding track information provided by the present invention;

Fig. 7 is a schematic structural diagram of an unlocking device provided by an embodiment of the present invention;

Fig. 8 is a schematic structural diagram of an unlocking device provided by another embodiment of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

It should be noted that the terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a", "said" and "the" are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

Please refer to FIG. 1 . FIG. 1 is a flow chart of an unlocking method provided by an embodiment of the present invention. The method can be applied to smart terminals with touch screens, such as smart phones, tablet computers, smart bracelets, etc., and the method includes:

Step S101: Obtain sliding track information input by a user on an unlocking interface.

In order to protect the security of information, the smart terminal can lock and unlock the touch screen to prevent it from being misoperated in the dormant state, and will enter the locked state. Only after the user enters the correct unlocking information can the operation be performed; The access to the application is encrypted, and the application can only be accessed when the user enters the correct unlocking information. The unlocking information can be set by combining the gesture pattern and the digital password, so as to improve the security of the unlocking password.

Specifically, an unlocking interface including several pattern dots and a timing device are set on the unlocking interface of the smart terminal. Fig. 2 is a schematic diagram of an embodiment of the unlocking interface provided by the present invention. The pattern or style of the interface. Usually, the user will pre-set the unlock information. The specific method is: the user enters the screen lock setting information bar of the smart terminal or the application lock information bar, sets the unlock information as a combination of gesture pattern and digital password, and presses the touch screen with the finger on the unlock setting interface , and slide along the pattern dots, the timing device records the dwell time of the finger at each pattern dot, generates corresponding numbers according to the dwell time at each pattern dot, and sequentially combines the generated numbers to obtain the preset Unlock number combinations. For example: the initial value of the number corresponding to the dwell time at the pattern lattice point can be set to 0, and every time the dwell time exceeds the preset time threshold, such as 1 second, the number generated at the pattern lattice point will be increased by 1, and the dwell time will not exceed 1 second, recorded as adding 0, such as staying for 4.7 seconds, the number generated at the pattern lattice point is 4. The pattern dots that are slid sequentially according to the sliding track of the finger are connected and combined to form the preset unlock pattern information. It should be noted that the preset unlock pattern information includes the sequence of the pattern dots that are slid sequentially.

When the user needs to unlock the operation, input the sliding track information on the unlocking interface of the smart terminal. The sliding track information includes the pattern grid points that the user slides in turn on the unlocking interface and the time spent on each pattern grid point. The specific method is: on the unlocking interface, press the finger on the touch screen and slide along the pattern dots.

Step S102: Generate target pattern information according to the input sliding track information, and extract the target number combination from the sliding track information.

Specifically, the target pattern information is formed by connecting and combining the pattern grid points that the sliding trajectory has passed through in sequence; In the residence time of each pattern grid point, corresponding digital information is generated according to the residence time of each pattern grid point, and the generated numbers are combined in turn to obtain the target number combination. For example: when the sliding track passes through 5 pattern grid points in sequence, and the numbers generated on each pattern grid point are 1, 2, 1, 2, 1 in turn, the obtained target number combination is 12121. It should be noted that, the method for the intelligent terminal to generate the target digital combination according to the dwell time at each pattern lattice point is the same as the method for generating the preset decryption digital combination according to the dwell time at each pattern lattice point.

Step S103: Determine whether the target pattern information matches the preset unlocking pattern information, and whether the target number combination matches the preset unlocking number combination.

Specifically, after the smart terminal acquires the combination of the target pattern information and the target number, it compares the target pattern information with the preset unlock pattern information, and the comparison includes comparing the target pattern information with the preset unlock pattern information. Compare the position and the order of the strokes, if their positions and the sequence of the strokes are the same, the target pattern information is consistent with the preset unlock pattern information; and compare the target number combination with the preset unlock number combination, if the two If the two comparison results are all consistent, then proceed to step S104 to perform the unlocking operation. As long as one of the two comparison results is inconsistent, the sliding track information input by the user is wrong, and the locked state can be maintained. The user can also be prompted to enter the password. Errors can be prompted in the form of sounding a prompt or displaying a message box on a display device, or prompting the user to re-input, etc., which are not limited in the present invention.

Step S104: Perform an unlocking operation.

Specifically, when the two judgment results in step S103 are both yes, that is to say, the combination of the target pattern information generated by the sliding track information input by the user and the extracted target number is combined with the preset unlock pattern information and the preset unlock pattern information respectively. If the combination of numbers is the same, the sliding track information input by the user is correct, and the smart terminal performs the unlocking operation.

In this embodiment, by obtaining the sliding track information input by the user on the unlocking interface, generating target pattern information according to the input sliding track information, and extracting the target number combination from the sliding track information, judging whether the target pattern information is consistent with the preset unlocking The pattern information matches, and whether the target number combination matches the preset unlocking number combination. When the judgment result is yes, the unlocking operation is performed. This method can realize that even if the gesture pattern is obtained by others, the real unlocking password cannot be obtained, thereby Keep personal information safe.

Please refer to FIG. 3 . FIG. 3 is a flowchart of an unlocking method provided by another embodiment of the present invention. The method can be applied to smart terminals with touch screens, such as smart phones, tablet computers, smart bracelets, etc., and the method includes:

S301: Preset unlocking information.

Specifically, an unlocking interface containing several pattern dots and a timing device are set on the unlocking interface of the smart terminal. Usually, the user will preset unlocking information, which includes preset unlocking pattern information and preset unlocking number combinations. The specific method is: the user enters the screen lock setting information bar of the smart terminal or the application lock information bar, and sets the unlock information as a combination of gesture pattern and digital password. On the unlock setting interface, the finger presses the touch screen and slides along the pattern matrix. The timing device records the stay time of the finger at each pattern grid point, generates corresponding numbers according to the stay time at each pattern grid point, and sequentially combines the generated numbers to obtain a preset unlocking number combination. For example: the initial value of the number corresponding to the dwell time at the pattern lattice point can be set to 0, and every time the dwell time exceeds the preset time threshold, such as 1 second, the number generated at the pattern lattice point will be increased by 1, and the dwell time will not exceed 1 second, recorded as adding 0. If you stay for 4.7 seconds, the number generated at the pattern grid point is 4, and the number corresponding to the pattern grid point will be prompted on the unlock interface. The pattern dots that are slid sequentially according to the sliding track of the finger are connected and combined to form the preset unlock pattern information. It should be noted that the preset unlock pattern information includes the sequence of the pattern dots that are slid sequentially. Assuming that the preset unlocking pattern information in this embodiment is shown in Figure 4, the numbers corresponding to the pattern dots that the fingers swipe are 1, 2, 1, 2, 1 respectively, that is, each of the preset unlocking patterns is The residence time of the array point is: more than 1 second and not more than 2 seconds, more than 2 seconds and not more than 3 seconds, more than 1 second and not more than 2 seconds, more than 2 seconds and not more than 3 seconds, and more than 1 second and not more than 2 seconds, then the pre-set Set the unlocking number combination to 12121.

Step S302: Displaying pattern dots for unlocking on the unlocking interface.

Specifically, when the user needs to operate the smart terminal in the locked state of the touch screen or the application program in the locked state, the unlocking interface displays pattern dots for unlocking, which is convenient for the user to input sliding track information. It should be noted that the pattern lattice points can be displayed on the unlocking interface in the form of dots or graphics arranged in an orderly or disorderly manner. The position coordinates of the pattern lattice points can be used to define each pattern lattice point. The sliding track information is based on Please refer to FIG. 2 for the information of the pattern matrix input. FIG. 2 is a schematic diagram of an embodiment of an unlocking interface provided by the present invention. The present invention includes but is not limited to the pattern or style of the unlocking interface described in FIG. 2 .

Step S303: Obtain sliding track information input by the user on the unlocking interface.

When the user needs to unlock the operation, input the sliding track information on the unlocking interface of the smart terminal. The sliding track information includes the pattern grid points that the user slides in turn on the unlocking interface and the time spent on each pattern grid point. The specific method is: on the unlocking interface, press the finger on the touch screen and slide along the pattern dots.

Step S304: Generate target pattern information according to the input sliding track information, and extract the target number combination from the sliding track information.

Specifically, the target pattern information is combined according to the pattern lattice points that the sliding track has passed through in sequence; when the sliding track passes through the pattern lattice points in turn, corresponding numbers are generated respectively according to the residence time at each pattern lattice point, and the timing device records According to the dwell time of the finger at each pattern lattice point, corresponding numbers are generated according to the dwell time at each pattern lattice point, and the generated numbers are sequentially combined to obtain the target number combination. For example: when the sliding track passes through 5 pattern grid points in sequence, and the numbers generated on each pattern grid point are 1, 2, 1, 2, 1 in turn, the obtained target number combination is 12121. It should be noted that, the method for the intelligent terminal to generate the target digital combination according to the dwell time at each pattern lattice point is the same as the method for generating the preset decryption digital combination according to the dwell time at each pattern lattice point.

It should be noted that the unlocking interface may also display target pattern information, that is, a gesture pattern, and the target pattern information is composed of pattern dots that are sequentially swiped by the user on the unlocking interface.

It should also be noted that step S304 and step S303 can also be executed synchronously. When the sliding track information input by the user is acquired on the unlocking interface, target pattern information is also generated according to the input sliding track information and the target number combination is extracted.

Step S305: Prompt the digital information generated by the pattern dots.

Specifically, when the sliding trajectory crosses each pattern lattice point, prompt information is generated according to the target number generated during the stay time at the pattern lattice point, so as to prompt the digital information generated by the pattern lattice point. The prompt information may be one or more combinations of vibration, prompt sound, indicator light, or digital information generated on the pattern grid point or within a preset range around it. For example, if the digital information is 1, the smart terminal vibrates once. It should be noted that step S305, step S304 and step S303 can be executed at the same time, and the display prompt information at the passed pattern point is executed synchronously with the digital information generated by the pattern point. Every time the dwell time of the point exceeds the preset time threshold, such as 1 second, the digital information will increase by 1, and the smart terminal will vibrate once, make a prompt sound or flash once, etc.

Please refer to FIG. 5 . FIG. 5 is a schematic diagram of an embodiment of input sliding track information provided by the present invention. For example, when your finger starts to slide, put it on the first grid point first, wait for 1.2 seconds, the smart terminal vibrates once, then slide to the second grid point immediately, and slide immediately after the smart terminal vibrates twice at the second grid point. Go to the third grid point, wait for 1.3 seconds, the smart terminal vibrates once, and immediately slide to the fourth grid point. After the smart terminal vibrates twice at the fourth grid point, it immediately slides to the fifth grid point. After vibrating once at the five matrix points, let go of your fingers. It can be seen that, in this embodiment, the sliding track information generates target pattern information as shown in FIG. 4 , and the target number combination extracted from the sliding track information is 12121.

It should be noted that the currently extracted digital information of the grid point can also be displayed at each grid point of the sliding track in Figure 5. When the sliding track stays at a certain grid point for a time exceeding the preset time threshold, the digital information Increase by 1 and display on the unlock interface. When the digital information is the digital information that the user wants to input, slide the finger to the next dot, as shown in Figure 6. Fig. 6 is a schematic diagram of another embodiment of input sliding track information provided by the present invention.

Step S306: Determine whether the target pattern information matches the preset unlocking pattern information, and whether the target number combination matches the preset unlocking number combination.

Specifically, after the smart terminal acquires the combination of the target pattern information and the target number, it compares the target pattern information with the preset unlock pattern information, and the comparison includes comparing the target pattern information with the preset unlock pattern information. Compare the position and the order of the strokes, if their positions and the sequence of the strokes are the same, the target pattern information is consistent with the preset unlock pattern information; and compare the target number combination with the preset unlock number combination, if the two The comparison results are all consistent, then proceed to step S307, and perform the unlocking operation. For example, in the embodiment of FIG. 5, the target pattern information generated by the sliding track information is consistent with the preset unlocking pattern information. If the target number combination extracted from the sliding track information is consistent with the preset unlocking number combination and both are 12121, then the above judgment results are all yes. Conversely, as long as one of the two comparison results is inconsistent, the sliding track information entered by the user is wrong, and the locked state can be maintained. The user can also be prompted to enter the wrong password. Displaying a message box may also prompt the user to re-input, etc., which are not limited in the present invention.

Step S307: Perform an unlocking operation.

Specifically, when both judgment results in step S306 are yes, the sliding track information input by the user is correct, and the smart terminal performs an unlocking operation.

It should be noted that the display of the number combination in the embodiment of the present invention is not limited to that shown in FIG. 6 , and can also be displayed in other ways, such as displaying the number combination in the upper area of the entire pattern lattice, etc., and the present invention is not limited.

In this embodiment, by obtaining the sliding track information input by the user on the unlocking interface, generating target pattern information according to the input sliding track information, and extracting the target number combination from the sliding track information, judging whether the target pattern information is consistent with the preset unlocking The pattern information matches, and whether the target number combination matches the preset unlocking number combination. When the judgment result is yes, the unlocking operation is performed. This method can realize that even if the gesture pattern is obtained by others, the real unlocking password cannot be obtained, thereby To protect the safety of personal information, in addition, the method can also prompt the user to generate digital information at each pattern lattice point.

Please refer to FIG. 7. FIG. 7 is a schematic structural diagram of an unlocking device provided by an embodiment of the present invention. The unlocking device 700 can be applied to smart terminals with touch screens, such as smart phones, tablet computers, smart bracelets, etc., the unlocking Apparatus 700 includes:

The obtaining unit 701 is configured to obtain sliding track information input by the user on the unlocking interface.

The generating and extracting unit 702 is configured to generate target pattern information according to the input sliding track information, and extract the target digital combination from the sliding track information.

The judging unit 703 is configured to judge whether the target pattern information matches the preset unlocking pattern information, and whether the target number combination matches the preset unlocking number combination.

The execution unit 704 is configured to perform an unlocking operation when the judgment results are all yes.

Please refer to FIG. 8. FIG. 8 is a schematic structural diagram of an unlocking device provided by another embodiment of the present invention. The unlocking device 700 can be applied to a smart terminal with a touch screen, such as a smart phone, a tablet computer, a smart bracelet, etc. The unlocking device 700 includes:

The obtaining unit 701 is configured to obtain sliding track information input by the user on the unlocking interface.

The generating and extracting unit 702 is configured to generate target pattern information according to the input sliding track information, and extract the target digital combination from the sliding track information.

The judging unit 703 is configured to judge whether the target pattern information matches the preset unlocking pattern information, and whether the target number combination matches the preset unlocking number combination.

The execution unit 704 is configured to perform an unlocking operation when the judgment results are all yes.

Optionally, the unlocking device 700 also includes:

The display unit 705 is configured to display pattern dots for unlocking in the unlocking interface.

Optionally, the display unit 705 is also configured to display target pattern information. Wherein, the sliding track information is information input based on pattern lattice points, and the target pattern information is composed of pattern lattice points that the user slides sequentially on the unlocking interface.

Optionally, generating and extracting unit 702 is specifically used to:

Connect and combine the pattern grid points that the sliding track passes through in sequence to form the target pattern information;

When the sliding track draws the pattern grid points sequentially, the residence time at each pattern grid point is obtained, and the corresponding numbers are generated according to the residence time, and the generated numbers are sequentially combined to obtain the target number combination.

Optionally, the unlocking device 700 also includes:

The prompting unit 706 is configured to generate prompt information when the sliding track draws each pattern lattice point, so as to prompt the digital information generated by the pattern lattice point.

Optionally, the prompt information includes at least one of the following:

Vibration, prompt sound, indicator light, or generate digital information on the pattern matrix or within a preset range around it.

It should be noted that the functions of the functional modules of the unlocking device 700 in the embodiment of the present invention can be implemented according to the method in the above-mentioned method embodiment, and the specific implementation process can refer to the relevant description of the above-mentioned method embodiment, and will not be repeated here. .

To sum up, in the unlocking method and device provided by the present invention, by obtaining the sliding track information input by the user on the unlocking interface, generating target pattern information according to the input sliding track information, and extracting the target digital combination from the sliding track information , judging whether the target pattern information matches the preset unlocking pattern information, and whether the target number combination matches the preset unlocking number combination, and when the judgment results are all yes, the unlocking operation is performed. This method can realize that even if the gesture pattern is acquired by others , and the real unlocking password cannot be obtained, so as to protect the security of personal information. In addition, this method can also prompt the user for the digital information generated at each pattern lattice point.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented through computer programs to instruct related hardware, and the programs can be stored in a computer-readable storage medium. During execution, it may include the processes of the embodiments of the above-mentioned methods. Wherein, the storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM) or a random access memory (Random Access Memory, RAM) and the like.

What is disclosed above is only a preferred embodiment of the present invention, and of course it cannot limit the scope of rights of the present invention. Those of ordinary skill in the art can understand all or part of the process for realizing the above embodiments, and according to the rights of the present invention The equivalent changes required still belong to the scope covered by the invention.

Claims (10)

1. An unlocking method, characterized in that, comprising: Obtain the sliding track information input by the user on the unlock interface; generating target pattern information according to the input sliding track information, and extracting target digital combinations from the sliding track information; Judging whether the target pattern information matches the preset unlocking pattern information, and whether the target number combination matches the preset unlocking number combination; When the judgment results are all yes, the unlocking operation is performed. 2. The method according to claim 1, characterized in that, before the unlocking interface acquires the sliding track information input by the user, further comprising: Displaying pattern dots for unlocking in the unlocking interface; The sliding track information is information input based on the pattern matrix. 3. The method according to claim 2, wherein the generating target pattern information according to the input sliding track information comprises: connecting and combining the pattern lattice points that the sliding tracks pass through sequentially to form the target pattern information ; The extracting the target digital combination from the sliding track information includes: When the sliding track draws the pattern grid points sequentially, the residence time at each pattern grid point is obtained, corresponding numbers are generated according to the residence time, and the generated numbers are sequentially combined to obtain the target number combination. 4. The method according to claim 3, wherein said extracting the target digital combination from the sliding track information further comprises: When the sliding track touches each pattern grid point, prompt information is generated to prompt the digital information generated by the pattern grid point. 5. The method according to claim 4, wherein the prompt information includes at least one of the following: Vibration, prompt sound, indicator light, or digital information is generated on the pattern grid point or within a preset range around it. 6. An unlocking device, characterized in that it comprises: An acquisition unit, configured to acquire sliding track information input by the user on the unlocking interface; generating an extraction unit for generating target pattern information according to the input sliding track information, and extracting target digital combinations from the sliding track information; A judging unit, configured to judge whether the target pattern information matches the preset unlocking pattern information, and whether the target number combination matches the preset unlocking number combination; The execution unit is configured to execute the unlocking operation when the judgment results are all yes. 7. The device according to claim 6, further comprising: A display unit, configured to display pattern dots for unlocking in the unlocking interface; The sliding track information is information input based on the pattern matrix. 8. The device according to claim 7, wherein the generating and extracting unit is also used for: Connecting and combining the pattern grid points that the sliding track passes through in sequence to form the target pattern information; When the sliding track draws the pattern grid points sequentially, the dwell time at each pattern grid point is obtained, the corresponding numbers are generated according to the dwell time, and the generated numbers are sequentially combined to obtain the target number combination. 9. The device according to claim 8, further comprising: The prompting unit is configured to generate prompt information when the sliding track draws each pattern lattice point, so as to prompt the digital information generated by the pattern lattice point. 10. The device according to claim 9, wherein the prompt information includes at least one of the following: Vibration, prompt sound, indicator light, or digital information is generated on the pattern grid point or within a preset range around it.