CN110348191B - Fingerprint unlocking method, device and system and electronic equipment - Google Patents
Fingerprint unlocking method, device and system and electronic equipment Download PDFInfo
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- CN110348191B CN110348191B CN201810295992.3A CN201810295992A CN110348191B CN 110348191 B CN110348191 B CN 110348191B CN 201810295992 A CN201810295992 A CN 201810295992A CN 110348191 B CN110348191 B CN 110348191B
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
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Abstract
The invention provides a fingerprint unlocking method, a device and a system and electronic equipment, wherein the fingerprint unlocking method comprises the following steps: acquiring a touch instruction based on user operation, reporting an interrupt and triggering an LCD (liquid crystal display) awakening instruction, acquiring a fingerprint corresponding to the user operation, sending a window drawing instruction, comparing whether the fingerprint is matched with a preset fingerprint or not, and if so, lighting a backlight after triggering to set a power supply mode and executing an unlocking process; if not, a sleep-up LCD instruction is sent to enable the LCD to be in a backlight-off state. Therefore, in the fingerprint unlocking method, the LCD command can be triggered and awakened after the finger is detected (when the report is interrupted), and compared with the prior art, the LCD screen does not need to be initialized after the fingerprint comparison result is determined, so that the fingerprint unlocking time is saved. Besides, in the embodiment, the window can be drawn while the fingerprints are compared, and the unlocking time is further saved in a parallel mode.
Description
Technical Field
The invention relates to the technical field of semiconductors, in particular to a fingerprint unlocking method, a fingerprint unlocking device, a fingerprint unlocking system and electronic equipment.
Background
With the continuous development of science and technology, the requirements of users on safety performance are higher and higher, and the biological identification is developed rapidly by virtue of the uniqueness of the biological characteristics. Wherein, fingerprint identification module (FPR) has become the indispensable part of intelligent electronic equipment to play important effect in daily life, like fingerprint unblock, fingerprint payment etc..
The inventor finds that the process of screen-off, unlocking and screen-lighting in the current operating system of the intelligent terminal is shown in fig. 1, the fingerprint identification module FPR identifies effective finger touch action, reports interruption, compares the acquired fingerprint with the fingerprint template, and initializes the LCD screen after the comparison is correct. After the LCD screen is initialized successfully, drawing a window, then setting a power mode, executing an unlocking process, and finally lighting the backlight to realize the effect of triggering the screen to be bright through fingerprint identification.
However, the above-mentioned sequence of turning off the screen and unlocking the bright screen takes a long time, which is about 1000ms, contrary to the development trend of the current electronic device to be fast and efficient. Therefore, how to provide a fingerprint unlocking method, which can reduce the time for fingerprint unlocking, is a great technical problem that those skilled in the art hope to continuously improve.
Disclosure of Invention
In view of this, the present invention provides a fingerprint unlocking method, which can reduce the time for fingerprint unlocking.
In order to achieve the purpose, the invention provides the following technical scheme:
a fingerprint unlocking method is applied to a fingerprint unlocking system, the fingerprint unlocking system comprises a touch and display integrated chip, a fingerprint identification chip and a processor, the touch and display integrated chip and the fingerprint identification chip are connected with the processor, and the fingerprint unlocking method comprises the following steps:
acquiring a touch instruction based on user operation;
reporting an interrupt and triggering an LCD awakening instruction;
collecting a fingerprint corresponding to the user operation;
sending a window drawing instruction;
comparing whether the fingerprint is matched with a preset fingerprint or not, if so, triggering to set a power supply mode and executing an unlocking process, and then lighting a backlight; and if not, sending a sleep LCD instruction to enable the LCD to be in a backlight extinguishing state.
Optionally, the reporting the interrupt and triggering the LCD wake-up instruction includes:
and reporting the interrupt and triggering an LCD awakening instruction at the same time.
Optionally, the sending the window drawing instruction, and comparing whether the fingerprint is matched with a preset fingerprint, includes:
and comparing whether the fingerprint is matched with the preset fingerprint and sending a window drawing instruction at the same time.
A fingerprint unlocking device comprising:
the acquisition module is used for acquiring a touch instruction based on user operation;
the trigger module is used for reporting interrupt and triggering an LCD awakening instruction;
the acquisition module is used for acquiring fingerprints corresponding to the user operation;
the sending module is used for sending a window drawing instruction;
the comparison module is used for comparing whether the fingerprint is matched with a preset fingerprint or not, and if so, the backlight is lightened after a power supply mode is triggered and a power supply mode is set and an unlocking process is executed; and if not, sending a sleep LCD instruction to enable the LCD to be in a backlight off state.
Optionally, the mobile terminal further includes a timing module, and the timing module is configured to trigger the sending module and the comparing module to execute a preset action at the same time, and/or control the triggering module to report an interrupt and trigger an LCD wakeup instruction at the same time.
The utility model provides a fingerprint unblock system, fingerprint unblock system is including touching integrative chip, fingerprint identification chip and the treater that shows, touch integrative chip through first interface and the first winding displacement of predetermineeing and the treater electricity is connected, the fingerprint identification chip through the second predetermine interface and the second predetermine the winding displacement with the treater electricity links to each other, fingerprint unblock system is used for:
the fingerprint identification chip is used for acquiring a touch instruction based on user operation;
the touch display integrated chip is used for reporting interrupt and triggering an LCD awakening instruction;
the fingerprint identification chip is also used for collecting the fingerprint corresponding to the user operation;
the touch display integrated chip is also used for sending a window drawing instruction, comparing whether the fingerprint is matched with a preset fingerprint or not, and if so, lighting backlight after triggering to set a power supply mode and executing an unlocking process; and if not, sending a sleep LCD instruction to enable the LCD to be in a backlight off state.
Optionally, the touch-and-display integrated chip is further configured to:
and reporting the interrupt and simultaneously triggering an LCD awakening instruction.
Optionally, the touch-and-display integrated chip is further configured to:
and comparing whether the fingerprint is matched with the preset fingerprint and sending a window drawing instruction at the same time.
An electronic device comprises an electronic device body and any one of the fingerprint unlocking devices.
Compared with the prior art, the technical scheme provided by the invention has the following advantages:
the invention provides a fingerprint unlocking method, which is applied to a fingerprint unlocking system, wherein the fingerprint unlocking system comprises a touch display integrated chip, a fingerprint identification chip and a processor, the touch display integrated chip and the fingerprint identification chip are connected with the processor, the fingerprint unlocking method firstly obtains a touch instruction based on user operation, then reports interruption and triggers an LCD (liquid crystal display) awakening instruction, then collects a fingerprint corresponding to the user operation, sends a window drawing instruction and compares whether the fingerprint is matched with a preset fingerprint, and if so, after triggering to set a power supply mode and execute an unlocking process, backlight is lightened; and if not, sending a sleep LCD instruction to enable the LCD to be in a backlight off state. Therefore, in the fingerprint unlocking method, the LCD command can be triggered and awakened after the finger is detected (when the report is interrupted), and compared with the prior art, the LCD screen does not need to be initialized after the fingerprint comparison result is determined, so that the fingerprint unlocking time is saved. Besides, in the embodiment, the window can be drawn while the fingerprints are compared, and the unlocking time is further saved in a parallel mode.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic flow chart of a fingerprint unlocking method in the prior art;
fig. 2 is a hardware schematic diagram of a fingerprint unlocking system applied to a fingerprint unlocking method provided in this embodiment;
fig. 3 is a schematic flowchart of a fingerprint unlocking method provided in this embodiment;
fig. 4 is a schematic structural diagram of a fingerprint unlocking device provided in this embodiment;
fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In combination with the background art, the inventor finds that the existing fingerprint unlocking and screen-lighting process is executed serially, that is, the execution step in fig. 1 can execute the next step only after the execution of the previous step is completed. And the LCD initialization time is long, so the whole fingerprint unlocking time is also long.
With the gradual improvement of the hardware performance of the intelligent device, the inventor finds that the current fingerprint unlocking process is long in time and also causes resource waste of a CPU of the intelligent electronic device to a certain extent. Namely, the current technology of screen turning, unlocking and screen lightening has the problems of long time consumption and incapability of effectively utilizing resources of a mobile phone CPU, and the user experience is poor.
Therefore, the present embodiment provides a fingerprint unlocking method, which is applied to a fingerprint unlocking system, as shown in fig. 2, the fingerprint unlocking system includes a touch display integrated chip (IDC) 21, a fingerprint identification chip (FPR) 22, and a processor 23, where the touch display integrated chip (IDC) 21 and the fingerprint identification chip (FPR) 22 are both connected to the processor 23.
Specifically, in the present embodiment, the touch display integrated chip (IDC) 21 and the fingerprint identification chip (FPR) 22 do not have an interface connected to the processor 23 by default, and therefore, in the present embodiment, any interface of I2C/SPI/GPIO is added to the touch display integrated chip (IDC) 21, and the interface is connected to the processor 23 through an FPC cable. Similarly, any interface of I2C/SPI/GPIO is added in the fingerprint identification chip (FPR) 22, and the interface is connected with the processor 23 through an FPC (flexible printed circuit) cable.
On the basis of the hardware, as shown in fig. 3, the fingerprint unlocking method provided in this embodiment includes:
s31, acquiring a touch instruction based on user operation;
s32, reporting an interrupt and triggering an LCD awakening instruction;
s33, collecting fingerprints corresponding to the user operation;
s34, sending a window drawing instruction;
s35, comparing whether the fingerprint is matched with a preset fingerprint or not, if so, triggering to set a power supply mode and executing an unlocking process, and then lighting a backlight; and if not, sending a sleep LCD instruction to enable the LCD to be in a backlight off state.
The reporting of the interrupt and the triggering of the LCD command may be reporting the interrupt and triggering of the LCD command. In addition, the sending of the window drawing instruction, and comparing whether the fingerprint is matched with the preset fingerprint may be: and comparing whether the fingerprint is matched with the preset fingerprint and sending a window drawing instruction at the same time.
It should be noted that, in this embodiment, it is preferable to execute the report interrupt and the wake-up LCD sending instruction at the same time, but the execution is not limited to the simultaneous execution, for example, the LCD may be waked up after a preset time arrives after the report interrupt, for example, 50ms later. Traditional LCD awakens up, needs a power-on initialization process, and this time is longer, in this scheme, adopts the mode that the LCD controller got into low-power consumption, detects the finger when the fingerprint module, just sends through hardware interface (II 2 SPI/GPIO) and awakens up the LCD instruction, compares this part and puts the end and accomplish, can practice thrift 300ms.
In addition, a window drawing process, namely a process of preparing LCD data, is required during the upper layer screen lightening process. The scheme carries out the process of the window drawing instruction and the fingerprint authentication in parallel, and can save 100ms time.
In summary, compared with the prior art, the scheme can enable the LCD to be switched from the sleep in mode to the awake out mode in advance, and after the initialization is completed, the LCD enters the data receiving ready mode, and the upper layer of the operating system only needs to send the map directly. The dark screen unlocking time of 400ms can be saved, namely the fingerprint unlocking time realized by the method is only 3/5 of the time in the prior art.
The fingerprint unlocking device provided by the embodiment of the application is introduced below, and the fingerprint unlocking device described below and the fingerprint unlocking method described above are referred to correspondingly. Specifically, as shown in fig. 4, the fingerprint unlocking device includes:
an obtaining module 41, configured to obtain a touch instruction based on a user operation;
a trigger module 42, configured to report an interrupt and trigger an LCD wake-up instruction;
an acquiring module 43, configured to acquire a fingerprint corresponding to the user operation;
a sending module 44, configured to send a window drawing instruction;
a comparison module 45, configured to compare whether the fingerprint is matched with a preset fingerprint, and if so, after triggering a power mode and executing an unlocking process, turn on a backlight; and if not, sending a sleep LCD instruction to enable the LCD to be in a backlight extinguishing state.
On the basis of the foregoing embodiment, the fingerprint unlocking device provided in this embodiment further includes a timing module, where the timing module is configured to trigger the sending module and the comparison module to execute the preset action at the same time, and/or control the trigger module to report an interrupt and trigger an LCD wakeup instruction at the same time.
The working principle of this embodiment of the apparatus is described in the above embodiment of the method, and the description is not repeated here.
On the basis of above-mentioned embodiment, this embodiment still provides a fingerprint unblock system, including touching apparent integrative chip, fingerprint identification chip and treater, touch apparent integrative chip through first predetermined interface and first predetermined winding displacement with the treater electricity is connected, the fingerprint identification chip through second predetermined interface and second predetermined winding displacement with the treater electricity links to each other, fingerprint unblock system is used for:
the fingerprint identification chip is used for acquiring a touch instruction based on user operation;
the touch display integrated chip is used for reporting interrupt and triggering an LCD awakening instruction;
the fingerprint identification chip is also used for collecting the fingerprint corresponding to the user operation;
the touch display integrated chip is also used for sending a window drawing instruction, comparing whether the fingerprint is matched with a preset fingerprint or not, and if so, lighting backlight after triggering to set a power supply mode and executing an unlocking process; and if not, sending a sleep LCD instruction to enable the LCD to be in a backlight extinguishing state.
Optionally, the touch-and-display integrated chip is further configured to:
and reporting the interrupt and simultaneously triggering an LCD awakening instruction.
Optionally, the touch-and-display integrated chip is further configured to:
and comparing whether the fingerprint is matched with the preset fingerprint and sending a window drawing instruction at the same time.
The working principle of this embodiment of the system is described in the above embodiment of the method, and will not be described repeatedly.
On the basis of the foregoing embodiment, the present embodiment further provides an electronic device, as shown in fig. 5, including the foregoing fingerprint unlocking device. The electronic device herein may be an electronic device having a fingerprint recognition function, such as a PC, a PAD, a mobile phone, and a wearable electronic device.
In summary, the invention provides a fingerprint unlocking method, which is applied to a fingerprint unlocking system, wherein the fingerprint unlocking system comprises a touch display integrated chip, a fingerprint identification chip and a processor, the touch display integrated chip and the fingerprint identification chip are connected with the processor, the fingerprint unlocking method firstly obtains a touch instruction based on user operation, then reports interruption and triggers an LCD (liquid crystal display) awakening instruction, then collects a fingerprint corresponding to the user operation, sends a window drawing instruction and compares whether the fingerprint is matched with a preset fingerprint, and if so, after triggering to set a power supply mode and execute an unlocking process, a backlight is lightened; and if not, sending a sleep LCD instruction to enable the LCD to be in a backlight off state. Therefore, in the fingerprint unlocking method, the LCD command can be triggered and awakened after the finger is detected (when the report is interrupted), and compared with the prior art, the LCD screen does not need to be initialized after the fingerprint comparison result is determined, so that the fingerprint unlocking time is saved. Besides, in the embodiment, the window can be drawn while the fingerprints are compared, and the unlocking time is further saved in a parallel mode.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention 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 disclosed herein.
Claims (5)
1. The fingerprint unlocking method is characterized by being applied to a fingerprint unlocking system, wherein the fingerprint unlocking system comprises a touch and display integrated chip, a fingerprint identification chip and a processor, the touch and display integrated chip and the fingerprint identification chip are connected with the processor, and the fingerprint unlocking method comprises the following steps:
acquiring a touch instruction based on user operation;
reporting an interrupt and triggering an LCD awakening instruction;
collecting a fingerprint corresponding to the user operation;
sending a window drawing instruction; comparing whether the fingerprint is matched with a preset fingerprint or not, if so, triggering to set a power supply mode and executing an unlocking process, and then lighting a backlight; if not, sending a sleep LCD instruction to enable the LCD to be in a backlight off state;
the reporting of the interrupt and the triggering of the LCD awakening instruction comprises the following steps: reporting interruption and simultaneously triggering an LCD awakening instruction;
the sending window drawing instruction is used for comparing whether the fingerprint is matched with a preset fingerprint or not, and the method comprises the following steps: and comparing whether the fingerprint is matched with the preset fingerprint and sending a window drawing instruction at the same time.
2. A fingerprint unlocking device, comprising:
the acquisition module is used for acquiring a touch instruction based on user operation;
the trigger module is used for reporting interrupt and triggering an LCD awakening instruction;
the acquisition module is used for acquiring fingerprints corresponding to the user operation;
the sending module is used for sending a window drawing instruction;
the comparison module is used for comparing whether the fingerprint is matched with a preset fingerprint or not, and if so, the backlight is lightened after a power supply mode is triggered and a power supply mode is set and an unlocking process is executed; if not, sending a sleep LCD instruction to enable the LCD to be in a backlight extinguishing state;
wherein the reporting the interrupt and triggering the LCD wake-up instruction includes: reporting interruption and simultaneously triggering an LCD awakening instruction;
the sending of the window drawing instruction, comparing whether the fingerprint is matched with the preset fingerprint, comprises: and comparing the fingerprint with a preset fingerprint, and sending a window drawing instruction while matching.
3. The fingerprint unlocking device of claim 2, further comprising a timing module, wherein the timing module is configured to trigger the sending module and the comparing module to execute a preset action at the same time, and/or control the triggering module to report an interrupt and trigger an LCD wake-up command at the same time.
4. The utility model provides a fingerprint unblock system, a serial communication port, fingerprint unblock system is including touching integrative chip, fingerprint identification chip and treater that shows, touch integrative chip through first predetermined interface and first predetermined winding displacement with the treater electricity is connected, the fingerprint identification chip through second predetermined interface and second predetermined winding displacement with the treater electricity links to each other, fingerprint unblock system is used for:
the fingerprint identification chip is used for acquiring a touch instruction based on user operation;
the touch display integrated chip is used for reporting interrupt and triggering an LCD awakening instruction;
the fingerprint identification chip is also used for collecting a fingerprint corresponding to the user operation;
the touch display integrated chip is also used for sending a window drawing instruction, comparing whether the fingerprint is matched with a preset fingerprint or not, and if so, lighting backlight after triggering setting of a power supply mode and execution of an unlocking process; if not, sending a sleep LCD instruction to enable the LCD to be in a backlight off state;
wherein the reporting the interrupt and triggering the LCD wake-up instruction includes: reporting interrupt and simultaneously triggering an LCD awakening instruction;
the sending window drawing instruction is used for comparing whether the fingerprint is matched with a preset fingerprint or not, and the method comprises the following steps: and comparing whether the fingerprint is matched with the preset fingerprint and sending a window drawing instruction at the same time.
5. An electronic device, characterized by comprising an electronic device body and the fingerprint unlocking device as claimed in claim 3.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810295992.3A CN110348191B (en) | 2018-04-04 | 2018-04-04 | Fingerprint unlocking method, device and system and electronic equipment |
| TW107114106A TWI682328B (en) | 2018-04-04 | 2018-04-25 | Fingerprint unlocking method, system and an electronic device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810295992.3A CN110348191B (en) | 2018-04-04 | 2018-04-04 | Fingerprint unlocking method, device and system and electronic equipment |
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| CN110348191A CN110348191A (en) | 2019-10-18 |
| CN110348191B true CN110348191B (en) | 2022-10-25 |
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| CN215642735U (en) | 2020-07-21 | 2022-01-25 | 神盾股份有限公司 | Fingerprint sensing device |
| US11670108B2 (en) | 2021-04-28 | 2023-06-06 | Guangzhou Tyrafos Semiconductor Technologies Co., Ltd | Image sensing device and fingerprint sensing method |
| TWI808604B (en) * | 2021-04-28 | 2023-07-11 | 大陸商廣州印芯半導體技術有限公司 | Image sensing device and fingerprint sensing method |
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Also Published As
| Publication number | Publication date |
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| TWI682328B (en) | 2020-01-11 |
| CN110348191A (en) | 2019-10-18 |
| TW201942801A (en) | 2019-11-01 |
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