WO2019071561A1

WO2019071561A1 - Optical biosensor and power-saving control method and system therefor

Info

Publication number: WO2019071561A1
Application number: PCT/CN2017/106012
Authority: WO
Inventors: 李谋涛; 于泽
Original assignee: 深圳芯启航科技有限公司
Priority date: 2017-10-13
Filing date: 2017-10-13
Publication date: 2019-04-18

Abstract

An optical biosensor and a power-saving control method and system therefor. The power-saving control method comprises: in a standby state, control the optical biosensor to enter a sleep mode, the optical biosensor stops scanning in the sleep mode (S101); in a wakeup state, control the optical biosensor to enter a touch detection mode, the optical biosensor intermittently scans in the touch detection mode (S102); determine, according to the scanning result, whether a touch signal is detected in a preset area or not (S103); if the touch signal is detected in the preset area, control the optical biosensor to enter an information collection mode, the optical biosensor continuously scans the preset area in the information collection mode (S104). According to the power-saving control method and system, the working mode of the optical biosensor can be controlled according to different working states of the current terminal, thereby reducing the power consumption of the optical biosensor.

Description

Description: An optical biosensor and its power saving control method and system

[0001] This solution belongs to the field of image sensing technology, and in particular, to an optical biosensor and a power saving control method and system thereof.

Background technique

[0002] With the continuous development of science and technology, smart terminals such as smart phones and tablet computers are constantly being updated. In recent years, biometric image sensing technologies such as fingerprint recognition and facial recognition have been widely applied to various intelligent terminals, improving the security performance of smart terminals.

technical problem

[0003] The bio-image sensing functions of the existing smart terminals are generally in a continuous state, and the power consumption is high, which greatly reduces the battery life of the smart terminal.

Problem solution

Technical solution

[0004] A first aspect of embodiments of the present solution provides a power saving control method for an optical biosensor, including

[0005] in a standby state, controlling the optical biosensor to enter a sleep mode, the optical biosensor stopping scanning in a sleep mode;

[0006] in an awake state, controlling the optical biosensor to enter a touch detection mode, the optical biosensor intermittently scanning in a touch detection mode;

[0007] determining, according to the scan result, whether a touch signal is detected in the preset area;

[0008] If the touch signal is detected in the preset area, the optical biosensor is controlled to enter an information collection mode, and the optical biosensor continuously scans the preset area in the information collection mode.

[0009] In an embodiment, the determining, according to the scan result, whether the touch signal is detected in the preset area, includes:

[0010] acquiring a scan signal of a preset area collected by the optical biosensor;

[0011] determining whether the quantized value of the scan signal exceeds a preset quantization threshold; [0012] if the quantized value exceeds a preset quantization threshold, determining that a touch signal is detected in the preset area;

[0013] if the quantized value does not exceed the preset quantization threshold, it is determined that the touch signal is not detected in the preset area.

[0014] In one embodiment, the optical biosensor includes an optical signal transmitting module, an optical signal receiving module, and a signal processing module, and the signal processing module is electrically connected to the optical signal receiving module, and the optical signal transmitting module幵启吋 emits an optical signal;

[0015] the controlling the optical biosensor to enter a sleep mode comprises:

[0017] controlling the optical signal transmitting module, the optical signal receiving module, and the signal processing module to be turned off; [0017] the controlling the optical biosensor to enter a touch detection mode includes:

[0018] controlling the optical signal transmitting module, the optical signal receiving module, and the signal processing module to intermittently turn on or off;

[0019] the controlling the optical biosensor to enter an information collection mode includes:

[0020] controlling the optical signal transmitting module, the optical signal receiving module, and the signal processing module to continuously start

[0021] In one embodiment, the predetermined area is a local area or a full area within a maximum scanning range of the optical biosensor.

[0022] A second aspect of the embodiments of the present disclosure provides a power saving control system for an optical biosensor, including

[0023] a first control unit, configured to be in a standby state, to control the optical biosensor to enter a sleep mode

The optical biosensor stops scanning in a sleep mode;

[0024] a second control unit, configured to: in an awake state, control the optical biosensor to enter a touch detection mode, wherein the optical biosensor intermittently scans in a touch detection mode;

[0025] a determining unit, configured to determine, according to the scan result, whether a touch signal is detected in the preset area;

And a third control unit, configured to control the optical biosensor to enter an information collection mode if the touch signal is detected in the preset area, and the optical biosensor continuously scans the preset area in the information collection mode.

[0027] In an embodiment, the determining unit comprises:

[0028] an acquiring unit, configured to acquire a scan signal of a preset area collected by the optical biosensor;

[0029] a threshold value determining unit, configured to determine whether a quantized value of the scan signal exceeds a preset quantization threshold; [0030] a first determining unit, configured to determine that a touch signal is detected in a preset area if the quantized value exceeds a preset quantization threshold;

[0031] The second determining unit is configured to determine that the touch signal is not detected in the preset area if the quantized value does not exceed the preset quantization threshold.

[0032] In one embodiment, the optical biosensor includes an optical signal transmitting module, an optical signal receiving module, and a signal processing module, and the signal processing module is electrically connected to the optical signal receiving module, and the optical signal transmitting module幵启吋 emits an optical signal;

[0033] the first control unit is specifically configured to control the optical signal transmitting module, the optical signal receiving module, and the signal processing module to be turned off;

[0034] the second control unit is specifically configured to control the optical signal transmitting module, the optical signal receiving module, and the signal processing module to be intermittently turned on or off;

[0035] The third control unit is specifically configured to control the optical signal transmitting module, the optical signal receiving module, and the signal processing module to continue to be activated.

[0036] In one embodiment, the predetermined area is a local area or a total area within a maximum scanning range of the optical biosensor.

[0037] A third aspect of the embodiments of the present disclosure provides an optical biosensor applied to a display device, the display device including a backlight module, a display module, a display control module, an image sensor, a filter, and a control module. The optical biosensor includes an optical signal transmitting module, an optical signal receiving module, and a signal processing module;

[0038] the backlight module includes the optical signal transmitting module, the optical signal transmitting module includes an infrared LED; the image sensor includes the optical signal receiving module and the signal processing module, and the signal processing module The optical signal receiving module is electrically connected, the area of the image sensor is less than or equal to the area of the display module, and the image sensor is disposed above, below or in the same layer of the display module; An infrared three-primary color filter that transmits infrared light, red light, green light, and blue light; the display control module and the display module are electrically connected, and the display control module controls the infrared light to pass through the display module; The control module is electrically connected to the image sensor and the optical signal transmitting module

[0039] The control module is operative to perform the steps of the method of any of the above. [0040] A fourth aspect of the embodiments of the present invention provides a computer readable storage medium, comprising: the computer readable storage medium storing a computer program, the computer program being executed by a processor, implementing any one of the above The steps of the method.

Advantageous effects of the invention

Beneficial effect

[0041] The embodiment of the solution controls the optical biosensor to enter the sleep mode and stops scanning while in the standby state, and controls the optical biosensor to enter the touch detection mode and intermittently scans in the awake state; and according to the scan result, It is judged that the touch signal is detected in the preset area, the optical biosensor is controlled to enter the information collection mode and the preset area is continuously scanned, and the working mode of the optical biosensor can be controlled according to different working states of the current terminal, thereby reducing the power consumption of the optical biosensor. the amount.

Brief description of the drawing

DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present solution, the drawings used in the description of the embodiments will be briefly described below. Obviously, the drawings in the following description are some implementations of the present solution. For example, other drawings may be obtained from those of ordinary skill in the art in light of the inventive work.

1 is a schematic flow chart of a power saving control method of an optical biosensor provided by an embodiment of the present solution;

2 is a schematic diagram showing the relationship between the scanning state and the scanning time of the optical biosensor in different working modes according to an embodiment of the present solution;

3 is a schematic flow chart of a power saving control method of an optical biosensor provided by another embodiment of the present solution;

4 is a schematic structural diagram of a power saving control system of an optical biosensor provided by an embodiment of the present solution;

5 is a schematic structural diagram of a power saving control system of an optical biosensor provided by another embodiment of the present solution;

6 is a schematic structural diagram of a display device according to an embodiment of the present disclosure;

7 is a schematic structural diagram of a terminal device according to an embodiment of the present solution. Embodiments of the invention

[0050] In the following description, for the purposes of illustration and description and description However, it will be apparent to those skilled in the art that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention.

[0051] In order to explain the technical solutions described in the present solution, the following description will be made by way of specific embodiments.

[0052] One embodiment of the present solution provides a power saving control method of an optical biosensor. In a specific application, an optical biosensor specifically refers to an optical image sensor for acquiring an image of a biological feature such as a fingerprint, an iris, a face, a vein, or the like by a photoelectric conversion principle. The method can be specifically implemented by a terminal such as a punching machine with an optical biosensor, a mobile phone, a tablet computer, a biometrics collecting device, and the like.

[0053] As shown in FIG. 1, the power saving control method includes:

[0054] Step S101: In the standby state, the optical biosensor is controlled to enter a sleep mode, and the optical object sensor stops scanning in the sleep mode.

[0055] In a specific application, the sleep mode refers to a state in which the optical biosensor is in standby or stopped operation, in which the optical biosensor consumes low power and consumes a constant amount of power, which is theoretically a power consumption of zero.

[0056] In a specific application, the scanning principle of the optical biosensor is: The optical biosensor emits an optical signal, receives an optical signal reflected by the object, converts the optical signal reflected by the object into photon quantity data, and processes the gray value. Data, thereby obtaining an image of the object, enabling scanning of the object. If there is no object on the light-emitting side of the optical image sensor, the light signal will not be reflected back. If there is an object on the light-emitting side of the optical image sensor, the light signal will be reflected back by the object, and the reflected light can be received according to the optical image sensor. The position of the photosensitive component or the pixel distribution of the resulting image of the object to determine the exact location of the object.

[0057] Step S102: In the awake state, the optical biosensor is controlled to enter a touch detection mode, and the optical biosensor intermittently scans in the touch detection mode.

[0058] In a specific application, the touch detection mode refers to an optical biosensor that is intermittently turned on or off. Specifically, the optical biosensor stops scanning the first inter-segment and continuously scans the second inter-turn. After the segment or continuous scanning of the second inter-segment segment, the second inter-segment segment is stopped and the reciprocating mode is repeated. In this state, the power consumption of the optical biosensor changes intermittently with the scanning state, and the power consumption of the optical sensor is high, and the power consumption of the power is low.

[0059] In a specific application, the standby state and the awake state specifically refer to a state of the smart terminal that implements the method. For example, the standby state refers to a black screen state of the smart terminal (excluding a black screen state in a shutdown state), and the awake state. It refers to the bright screen status of the smart terminal.

[0060] Step S103: Determine, according to the scan result, whether a touch signal is detected in the preset area.

[0061] In a specific application, the scan result specifically refers to a scan result of the control module sent by the optical biosensor to the terminal, and the control module determines the area corresponding to the scan range of the optical biosensor on the terminal panel by analyzing the scan result ( That is, the preset area) Whether a touch signal is detected.

[0062] Specifically, the optical biosensor generally includes an optical signal transmitting module for transmitting a scanning optical signal, an optical signal receiving module for receiving an optical signal reflected by the object, and processing the reflected optical signal into a signal of a digital signal (image data). Processing module. The optical signal transmitting module may specifically include a combination of one or more of an infrared LED, an ultraviolet LED, and a visible light LED; the optical signal receiving module may specifically include an image sensor, and the photosensitive surface of the image sensor is provided with a plurality of photosensitive pixels arranged in an array a point for converting the received optical signal into an electrical signal; the signal processing module may specifically include an image processor for processing the electrical signal into a digital signal.

[0063] In a specific application, the scan result is a digital signal output by the optical biosensor, and the preset area may be the entire area of the maximum scan range of the optical biosensor, that is, the entire area where the touch signal can be collected on the terminal (corresponding to the image sensor) The entire pixel array area) may also be only an area on the terminal where the touch signal is acquired (corresponding to the pixel area on the image sensor that receives the reflected light signal).

[0064] In one embodiment, the predetermined area is a local area or a full area within a maximum scanning range of the optical biosensor.

[0065] In one embodiment, the optical biosensor is applied to a display device, the maximum scan range of the optical biosensor covering the entire display area of the display device.

[0066] In a specific application, the display device may be a full screen display device, and the optical biosensor may acquire a touch signal received by all display areas of the full screen display device.

[0067] In an embodiment, after step S103, the method further includes: [0068] If no touch signal is detected in the preset area, then return to step S102.

[0069] Step S104: If a touch signal is detected in the preset area, the optical biosensor is controlled to enter an information collection mode, and the optical biosensor continuously scans the preset area in the information collection mode.

[0070] In a specific application, the information collection mode refers to an optical biosensor that is continuously turned on, and continuously scans in this state, in which the optical biosensor consumes a large amount of power and consumes a constant amount of power.

[0071] In an embodiment, after step S104, the method further includes:

[0072] If the scanning of the preset area ends, the process returns to step S102.

[0073] As shown in FIG. 2, a schematic diagram showing the relationship between the scanning state of the optical biosensor in the sleep mode, the touch detection mode, and the information acquisition mode and the scanning time is exemplarily shown. Stop scanning, low power consumption, continuous scanning, and high power consumption.

[0074] In one embodiment, the optical biosensor includes an optical signal transmitting module, an optical signal receiving module, and a signal processing module, and the signal processing module is electrically connected to the optical signal receiving module, and the optical signal transmitting module幵启吋 emits an optical signal, the optical signal comprising one or more combinations of an infrared light signal, an ultraviolet light signal, and a human visible light signal;

[0075] Correspondingly, step S101 includes: controlling the optical signal transmitting module, the optical signal receiving module, and the signal processing module to be turned off;

[0076] Step S102 includes: controlling the optical signal transmitting module, the optical signal receiving module, and the signal processing module to intermittently turn on or off;

[0077] Step S104 includes: controlling the optical signal transmitting module, the optical signal receiving module, and the signal processing module to continue to be activated.

[0078] This embodiment controls the optical biosensor to enter the sleep mode and stops scanning while in the standby state, and controls the optical biosensor to enter the touch detection mode and intermittently scans in the awake state; and judges according to the scan result After the touch signal is detected in the preset area, the optical biosensor is controlled to enter the information collection mode and continuously scan the preset area, and the working mode of the optical biosensor can be controlled according to different working states of the current terminal, thereby reducing the power consumption of the optical biosensor. .

[0079] As shown in FIG. 3, in an embodiment of the present solution, step S103 in the embodiment corresponding to FIG. 1 specifically includes:

[0080] Step S301: Acquire a scan signal of a preset area collected by the optical biosensor. [0081] In a specific application, the scan signal specifically refers to a digital signal obtained by the optical biosensor after processing the optical signal reflected by the object collected by the optical biosensor, and the scan signal is reflected by each photosensitive pixel in the optical biosensor. The amount of photons.

[0082] Step S302: Determine whether the quantized value of the scan signal exceeds a preset quantization threshold.

[0083] In a specific application, the quantized value of the scan signal may specifically refer to a gray value corresponding to the scan signal. Since the scan signal may be processed as an image signal, the quantized value of the scan signal may be a gray scale in the image signal. The number of pixels whose value is greater than the preset threshold. The preset quantization threshold is the minimum standard quantity of the quantized value. If the quantized value is too small, it indicates that the contact between the object and the end panel is too short or the contact area is too small, which causes the optical biosensor to scan and not collect the optical signal reflected by the object or the collected optical signal, resulting in less The number of pixels in which the gray value is higher than the preset threshold in the finally obtained image signal is small, and it can be considered that no touch signal is detected.

[0084] In a specific application, the quantized value may also refer to the number of photosensitive pixel points in which the amount of photons collected in the optical biosensor is greater than a preset threshold.

[0085] In an embodiment, before step S302, the method includes:

[0086] A quantization threshold is set.

[0087] Step S303: If the quantized value exceeds a preset quantization threshold, determining that a touch signal is detected in the preset area;

[0088] Step S304: If the quantized value does not exceed the preset quantization threshold, it is determined that the touch signal is not detected in the preset area.

It should be understood that the size of the sequence numbers of the steps in the foregoing embodiments does not mean the order of execution sequence, and the execution order of each process should be determined by its function and internal logic, and should not constitute the implementation process of the embodiment of the present solution. Any restrictions.

[0090] As shown in FIG. 4, an embodiment of the present invention provides a power saving control system 100 for an optical biosensor for performing the method steps in the embodiment corresponding to FIG. 1. The power saving control system includes:

[0091] The first control unit 101 is configured to, in a standby state, control the optical biosensor to enter a sleep mode, and the optical biosensor stops scanning in the sleep mode;

[0092] The second control unit 102 is configured to, in an awake state, control the optical biosensor to enter a touch detection mode, and the optical biosensor intermittently scans in a touch detection mode; The determining unit 103 is configured to determine, according to the scan result, whether the touch signal is detected in the preset area; [0094] the third control unit 104 is configured to control the optical if the touch signal is detected in the preset area The biosensor enters an information collection mode, and the optical biosensor continuously scans the preset area in an information collection mode.

[0095] In a specific application, the power-saving control system may be a software control system in a terminal to which the optical biosensor is applied, and the system may be executed by a control module in the terminal, and the units 101-104 may specifically be software. Program module. The control module can be realized by a logic processing device such as a central controller.

[0096] In an embodiment, the power saving control system further includes:

[0097] The first returning unit is configured to return to the second control unit if the touch signal is not detected in the preset area.

[0098] In an embodiment, the power saving control system further includes:

[0099] The second returning unit is configured to return to the second control unit if the scanning of the preset area ends.

[0100] In one embodiment, the optical biosensor includes an optical signal transmitting module, an optical signal receiving module, and a signal processing module, and the signal processing module is electrically connected to the optical signal receiving module, and the optical signal transmitting module幵启吋 emits an optical signal, the optical signal comprising one or more combinations of an infrared light signal, an ultraviolet light signal, and a human visible light signal;

[0101] The first control unit is specifically configured to control the optical signal transmitting module, the optical signal receiving module, and the signal processing module to be turned off;

[0102] The second control unit is specifically configured to control the optical signal transmitting module, the optical signal receiving module, and the signal processing module to be intermittently turned on or off;

[0103] The third control unit is specifically configured to control the optical signal transmitting module, the optical signal receiving module, and the signal processing module to continue to be activated.

[0104] This embodiment controls the optical biosensor to enter the sleep mode and stops scanning while in the standby state, and controls the optical biosensor to enter the touch detection mode and intermittently scans in the awake state; and judges according to the scan result. After the touch signal is detected in the preset area, the optical biosensor is controlled to enter the information collection mode and continuously scan the preset area, and the working mode of the optical biosensor can be controlled according to different working states of the current terminal, thereby reducing the power consumption of the optical biosensor. .

[0105] As shown in FIG. 5, in an embodiment of the present solution, the determining unit 103 in the embodiment corresponding to FIG. 4 Specifically, the structure includes the steps of the method in the embodiment corresponding to FIG. 3, which includes:

[0106] The obtaining unit 301 is configured to acquire a scan signal of the preset area collected by the optical biosensor; [0107] the threshold value determining unit 302 is configured to determine whether the quantized value of the scan signal exceeds a preset quantization threshold; a first determining unit 303, configured to determine that a touch signal is detected in a preset area if the quantized value exceeds a preset quantization threshold;

[0109] The second determining unit 304 is configured to determine that the touch signal is not detected in the preset area if the quantized value does not exceed the preset quantization threshold.

[0110] In a specific application, the units 301-304 may also be software program units executed by the control module of the terminal.

[0111] As shown in FIG. 6 , an embodiment of the present disclosure provides an optical biosensor, which is applied to a display device 600. The display device 600 includes a backlight module 610, a display module 620, a display control module 630, and an image. The sensor 640, the filter 650 and the control module 660, the optical biosensor comprises an optical signal transmitting module, an optical signal receiving module and a signal processing module.

[0112] As shown in FIG. 6, in the embodiment, the optical signal transmitting module of the optical biosensor belongs to a part of the backlight module 610, the backlight module 610 includes an optical signal transmitting module, and the optical signal transmitting module includes the infrared LED611. .

[0113] In one embodiment, the optical signal emitting module may further include an ultraviolet LED or a visible light LED of any color.

[0114] In a specific application, the backlight module of the display device generally includes a backlight and a light homogenizing plate, and the backlight is usually a white LED disposed under or on the side of the light homogenizing plate.

As shown in FIG. 6, the backlight module 610 is exemplarily shown in the embodiment to further include a white LED 612 and a uniform 613.

As shown in FIG. 6, in the present embodiment, the optical signal receiving module and the signal processing module of the optical biosensor belong to a part of the image sensor 640, and the signal processing module is electrically connected to the optical signal receiving module.

[0117] In a specific application, the optical signal receiving module specifically refers to a photosensitive component on the image sensor, and the signal processing module specifically refers to an analog-to-digital converter that performs analog-to-digital conversion on the optical signal received by the photosensitive component.

[0118] In this embodiment, the image sensor is a large-area image sensor whose area is less than or equal to the area of the display module, and can collect touch signals on all display areas of the display device, and can be applied to have full Display device for the face panel.

[0119] In a specific application, the image sensor may be disposed above, below or at the same level of the display module.

As shown in FIG. 6, the image sensor 640 is exemplarily shown in the present embodiment above the display module 620.

In the present embodiment, the filter is an infrared three-primary color filter that transmits infrared light, red light, green light, and blue light. It is prepared by a special coating process, which can transmit infrared light, red light, green light and blue light, so that the display module can display three primary color images as well as optical biological images such as fingerprints, veins and irises.

[0122] As shown in FIG. 6, in the embodiment, the display control module 630 and the display module 620 are electrically connected, and the display control module 630 is configured to control the infrared light to pass through the display module 620.

[0123] In a specific application, the display module may be any type of display device, for example, a thin film transistor liquid crystal display (TFT-LCD, Thin Film Transistor-Liquid Crystal)

Display), OLED (Organic Electroluminescence Display) display, QLED (Quantum Dot Light Emitting Diodes) display, etc.

. In this embodiment, the display module is specifically a thin film transistor liquid crystal display. Correspondingly, the display control module is specifically a TFT (Thin Film Transistor) liquid crystal driving chip. The display control module controls the display of the display module by adjusting the magnitude of the voltage applied to the display module and adjusting the optical axis orientation of the liquid crystal particles in the display module.

As shown in FIG. 6, in the embodiment, the control module 660 is electrically connected to the image sensor 640 and the infrared LED 611 for implementing control of the working mode of the optical biosensor. Specifically, the control module 660 is configured to execute The method steps in the above various method embodiments.

[0125] In a specific application, the unit in the above system embodiment is a software program unit executed by the control module.

[0126] In a specific application, the control module is a central processing unit of the display device that is also coupled to the display control module and the white light LED to effect control of the display state of the display device.

[0127] As shown in FIG. 6, the display device 600 provided in this embodiment further includes a transparent cover 670 and a transparent cover 670.

The filter 650, the image sensor 640, the display module 620, the display control module 630, and the backlight module 610 are stacked in order from top to bottom to constitute the display device 600.

[0128] In a specific application, the transparent cover may specifically be a glass cover or a touch display panel. [0129] The present embodiment provides a display device combining a large-area image sensor and a display module, which can realize a full-screen biological image acquisition function of the display device without using a capacitive touch signal acquisition device, and can be applied to a full-screen display device. Reduce power consumption, low cost, simple structure, and easy implementation.

[0130] As shown in FIG. 7, an embodiment of the present solution provides a terminal device 7, which includes: a processor 70, a memory 71, and is stored in the memory 71 and operable on the processor 70. Computer program 72. The processor 70 executes the computer program 72 to implement the steps in the above various power saving control method embodiments, such as steps S101 to S104 shown in FIG. Alternatively, the processor 70 executes the computer program 72 to implement the functions of the modules/units in the above-described respective device embodiments, such as the functions of the units 101 to 104 shown in FIG.

[0131] Illustratively, the computer program 72 may be divided into one or more units, the one or more units being stored in the memory 71 and executed by the processor 70 to complete the present Program. The one or more units may be a series of computer program instructions that are capable of performing a particular function, and are used to describe the execution of the computer program 72 in the terminal device 7. For example, the computer program 72 can be divided into a first control unit, a second control unit, a determination unit, and a third control unit. The specific functions of each unit are as follows:

[0132] a first control unit, configured to: in a standby state, control the optical biosensor to enter a sleep mode, where the optical biosensor stops scanning in a sleep mode;

[0133] a second control unit, configured to: in an awake state, control the optical biosensor to enter a touch detection mode, wherein the optical biosensor intermittently scans in a touch detection mode;

[0134] a determining unit, configured to determine, according to the scan result, whether a touch signal is detected in the preset area;

[0135] The third control unit is configured to control the optical biosensor to enter an information collection mode if the touch signal is detected in the preset area, and the optical biosensor continuously scans the preset area in the information collection mode.

[0136] The terminal device 7 may be a computing device such as a desktop computer, a notebook, a palmtop computer, and a cloud server. The terminal device may include, but is not limited to, a processor 70 and a memory 71. It will be understood by those skilled in the art that FIG. 7 is only an example of the terminal device 7, and does not constitute a limitation of the terminal device 7, and may include more or less components than those illustrated, or combine some components, or different components. For example, the terminal device may further include an input/output device, a network access device, a bus, and the like. The processor 70 may be a central processing unit (CPU), or may be another general-purpose processor, a digital signal processor (DSP), or an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), ready-to-use programmable gate array

(Field-Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, etc. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

[0138] The memory 71 may be an internal storage unit of the terminal device 7, such as a hard disk or a memory of the terminal device 7. The memory 71 may also be an external storage device of the terminal device 7, such as a plug-in hard disk provided on the terminal device 7, a smart memory card (SMC), and a secure digital device.

(Secure Digital, SD) card, flash card, etc. Further, the memory 71 may also include both an internal storage unit of the terminal device 7 and an external storage device. The memory 71 is used to store the computer program and other programs and data required by the terminal device. The memory 71 can also be used to temporarily store data that has been output or is about to be output.

[0139] It will be clearly understood by those skilled in the art that, for convenience and brevity of description, only the division of each functional unit and module described above is exemplified. In practical applications, the above functions may be assigned differently according to needs. The functional unit and the module are completed, that is, the internal structure of the device is divided into different functional units or modules to complete all or part of the functions described above. Each functional unit and module in the embodiment may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit, and the integrated unit may be implemented by hardware. Formal implementation can also be implemented in the form of software functional units. In addition, the specific names of the functional units and modules are only for the purpose of distinguishing between them, and are not intended to limit the scope of protection of this solution. For the specific working process of the units and modules in the foregoing system, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described herein again.

[0140] In the foregoing embodiments, the descriptions of the various embodiments are different, and the parts that are not detailed or described in the specific embodiments may be referred to the related descriptions of other embodiments.

[0141] Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design of the technical solution. Constraint conditions. The skilled person can use different methods for each particular application to implement the described functionality, but such implementation should not be considered beyond the scope of the present scheme.

[0142] In the embodiments provided by the present solution, it should be understood that the disclosed device/terminal device and method may be implemented in other manners. For example, the device/terminal device embodiment described above is merely illustrative. For example, the division of the module or unit is only a logical function division, and the actual implementation may have another division manner, for example, multiple units. Or components may be combined or integrated into another system, or some features may be omitted or not implemented. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in electrical, mechanical or other form.

[0143] The unit described as a separate component may or may not be physically distributed, and the component displayed as a unit may or may not be a physical unit, that is, may be located in one place, or may be distributed to multiple On the network unit. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

[0144] In addition, each functional unit in each embodiment of the present solution may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0145] The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, the solution implements all or part of the processes in the foregoing embodiments, and may also be completed by a computer program to instruct related hardware. The computer program may be stored in a computer readable storage medium. After the program is executed by the processor, the steps of the various method embodiments described above can be implemented. . The computer program includes computer program code, and the computer program code may be in a source code form, an object code form, an executable file, or some intermediate form. The computer readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a removable hard disk, a magnetic disk, an optical disk, a computer memory, a Read-Only Memory (ROM). , Random Access Memory (RAM), electrical carrier signals, telecommunications signals, and software distribution media. It should be noted that the content included in the computer readable medium may be based on a division Appropriate increases and decreases are required for legislation and patent practice in jurisdictions. For example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals, in accordance with legislation and patent practice.

The embodiments described above are only used to explain the technical solutions of the present solution, and are not limited thereto; although the present solution has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still implement the foregoing embodiments. The technical solutions described in the examples are modified, or some of the technical features are equivalently replaced; and the modifications or substitutions do not deviate from the spirit and scope of the technical solutions of the embodiments of the present embodiments, and should be included in Within the scope of protection of this program.

Claims

Claim

[Claim 1] A power saving control method for an optical biosensor, wherein the power saving control method includes:

In the standby state, the optical biosensor is controlled to enter a sleep mode, and the optical biosensor stops scanning in the sleep mode;

In the awake state, the optical biosensor is controlled to enter a touch detection mode, and the optical biosensor intermittently scans in the touch detection mode; according to the scan result, it is determined whether the touch signal is detected in the preset area;

If a touch signal is detected in the preset area, the optical biosensor is controlled to enter an information acquisition mode, and the optical biosensor continuously scans the preset area in the information collection mode.

The power saving control method of the optical biosensor according to claim 1, wherein the determining whether the touch signal is detected in the preset area according to the scan result comprises: acquiring the optical biosensor a scan signal of the preset area acquired;

Determining whether the quantized value of the scan signal exceeds a preset quantization threshold;

If the quantized value exceeds a preset quantization threshold, determining that a touch signal is detected in the preset area

If the quantized value does not exceed the preset quantization threshold, it is determined that the touch signal is not detected in the preset area.

[Claim 3] The power saving control method of the optical biosensor according to any one of claims 1 to 2, wherein the optical biosensor comprises an optical signal transmitting module, an optical signal receiving module, and a signal processing module. The signal processing module is electrically connected to the optical signal receiving module, and the optical signal transmitting module is configured to emit an optical signal;

The controlling the optical biosensor to enter a sleep mode comprises:

Controlling the optical signal transmitting module, the optical signal receiving module, and the signal processing module to be turned off;

The controlling the optical biosensor to enter a touch detection mode includes:

Controlling the optical signal transmitting module, the optical signal receiving module, and the signal processing module Intermittent opening or closing;

The controlling the optical biosensor to enter an information collection mode includes:

Controlling the optical signal transmitting module, the optical signal receiving module, and the signal processing module to continue to be activated.

[Claim 4] The power saving control method of the optical biosensor according to claim 1, wherein the predetermined area is a partial area or a total area within a maximum scanning range of the optical biosensor.

[Claim 5] A power saving control system for an optical biosensor, wherein the power saving control system comprises:

a first control unit, configured to: in a standby state, control the optical biosensor to enter a sleep mode, and the optical biosensor stops scanning in a sleep mode;

a second control unit, configured to: in an awake state, control the optical biosensor to enter a touch detection mode, the optical biosensor intermittently scans in a touch detection mode; and a determining unit, configured to determine whether the pre-predicting is based on the scan result The area detecting the touch signal third control unit is configured to control the optical biosensor to enter an information collection mode if the touch signal is detected in the preset area, and the optical biosensor continuously scans the pre-information in the information collection mode Set the area.

[Claim 6] The power saving control system of the optical biosensor of claim 5, wherein the determining unit comprises:

An acquiring unit, configured to acquire a scan signal threshold determining unit of the preset area collected by the optical biosensor, to determine whether the quantized value of the scan signal exceeds a preset quantization threshold;

a first determining unit, configured to determine that a touch signal is detected in a preset area if the quantized value exceeds a preset quantization threshold;

The second determining unit is configured to determine that the touch signal is not detected in the preset area if the quantized value does not exceed the preset quantization threshold. The power saving control system for an optical biosensor according to any one of claims 5 to 6, wherein the optical biosensor comprises an optical signal transmitting module, an optical signal receiving module, and a signal processing module, and the signal processing module Electrically connecting with the optical signal receiving module, the optical signal transmitting module is configured to emit an optical signal;

The first control unit is specifically configured to control the optical signal transmitting module, the optical signal receiving module, and the signal processing module to be turned off;

The second control unit is specifically configured to control the optical signal transmitting module, the optical signal receiving module, and the signal processing module to be intermittently turned on or off;

The third control unit is specifically configured to control the optical signal transmitting module, the optical signal receiving module, and the signal processing module to continue to be activated.

The power saving control system for an optical biosensor according to claim 7, wherein the predetermined area is a partial area or a total area within a maximum scanning range of the optical biosensor.

An optical biosensor, characterized by being applied to a display device, the display device comprising a backlight module, a display module, a display control module, an image sensor, a filter and a control module, wherein the optical biosensor comprises an optical signal emission Module, optical signal receiving module and signal processing module;

The backlight module includes the optical signal transmitting module, and the optical signal transmitting module includes an infrared LED; the image sensor includes the optical signal receiving module and the signal processing module, and the signal processing module and the light The signal receiving module is electrically connected, the area of the image sensor is less than or equal to the area of the display module, and the image sensor is disposed above, below or in the same layer of the display module; the filter is permeable to infrared An infrared three-primary color filter of light, red light, green light and blue light; the display control module and the display module are electrically connected, the display control module controls the infrared light to pass through the display module; A module is electrically coupled to the image sensor and the optical signal transmitting module; the control module is operative to perform the steps of the method of any one of claims 1 to 4. A computer readable storage medium storing a computer program, wherein the computer program is executed by a processor, and the implementation is as claimed in claim 1. The steps of any of the methods of any of 4.