CN110399852B

CN110399852B - Control method of ultrasonic module and related product

Info

Publication number: CN110399852B
Application number: CN201910696666.8A
Authority: CN
Inventors: 吴安平
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2021-07-20
Anticipated expiration: 2039-07-30
Also published as: CN110399852A

Abstract

The embodiment of the application discloses a control method of an ultrasonic module and a related product, which are applied to electronic equipment, wherein the electronic equipment comprises the ultrasonic module and a display screen, the ultrasonic module is arranged below the display screen, and a protective film is attached above the display screen; the method comprises the following steps: acquiring target attribute parameters of the protective film; determining target working parameters of the ultrasonic module corresponding to the target attribute parameters; and working according to the target working parameters through the ultrasonic module. Adopt this application embodiment can promote the fingerprint collection ability of ultrasonic wave module under the condition of display screen pad pasting.

Description

Control method of ultrasonic module and related product

Technical Field

The application relates to the technical field of electronic equipment, in particular to a control method of an ultrasonic module and a related product.

Background

With the widespread use of electronic devices (such as mobile phones, tablet computers, and the like), the electronic devices have more and more applications and more powerful functions, and the electronic devices are developed towards diversification and personalization, and become indispensable electronic products in the life of users.

Fingerprint identification technique also becomes electronic equipment's standard configuration technique, along with fingerprint identification technique's development, sees at present to the cell-phone as an example, and the display screen pad pasting of cell-phone more and more receives user favor, but, because ultrasonic wave module penetrability is limited, behind the pad pasting, very probably reduces the fingerprint collection ability of ultrasonic wave module, how under the pad pasting condition, the problem that promotes the fingerprint collection ability of ultrasonic wave module is urgent to be solved.

Disclosure of Invention

The embodiment of the application provides a control method of an ultrasonic module and a related product, and can improve the fingerprint acquisition capacity of the ultrasonic module under the condition of a display screen film.

In a first aspect, an embodiment of the present application provides an electronic device, which includes a processing circuit, and an ultrasonic module and a display screen connected to the processing circuit, wherein the ultrasonic module is disposed below the display screen, and a protective film is attached above the display screen,

the processing circuit is used for acquiring target attribute parameters of the protective film; determining target working parameters of the ultrasonic module corresponding to the target attribute parameters;

and the ultrasonic module is used for working according to the target working parameters.

In a second aspect, an embodiment of the present application provides a control method for an ultrasonic module, which is applied to an electronic device, where the electronic device includes the ultrasonic module and a display screen, the ultrasonic module is disposed below the display screen, and a protective film is attached above the display screen; the method comprises the following steps:

acquiring target attribute parameters of the protective film;

determining target working parameters of the ultrasonic module corresponding to the target attribute parameters;

and working according to the target working parameters through the ultrasonic module.

In a third aspect, an embodiment of the present application provides a control device for an ultrasonic module, which is applied to an electronic device, where the electronic device includes the ultrasonic module and a display screen, the ultrasonic module is disposed below the display screen, and a protective film is attached above the display screen; the device comprises: a first acquisition unit, a first determination unit and an acquisition unit, wherein,

the first acquisition unit is used for acquiring target attribute parameters of the protective film;

the first determining unit is used for determining target working parameters of the ultrasonic module corresponding to the target attribute parameters;

and the acquisition unit is used for working according to the target working parameters through the ultrasonic module.

In a fourth aspect, an embodiment of the present application provides an electronic device, including a processor, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for executing the steps in the second aspect of the embodiment of the present application.

In a fifth aspect, the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program makes a computer perform some or all of the steps described in the second aspect of the present application.

In a sixth aspect, embodiments of the present application provide a computer program product, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, where the computer program is operable to cause a computer to perform some or all of the steps as described in the second aspect of embodiments of the present application. The computer program product may be a software installation package.

The embodiment of the application has the following beneficial effects:

the control method of the ultrasonic module and the related product are applied to electronic equipment, the electronic equipment comprises the ultrasonic module and a display screen, the ultrasonic module is arranged below the display screen, a protective film is attached to the upper portion of the display screen, the target attribute parameters of the protective film are obtained, the target working parameters of the ultrasonic module corresponding to the target attribute parameters are determined, the ultrasonic module works according to the target working parameters, the ultrasonic module can be controlled to work according to the working parameters corresponding to the protective film under the condition that the display screen is pasted with the film, and fingerprint collection efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1A is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure;

fig. 1B is a schematic structural diagram of another electronic device provided in the embodiment of the present application;

fig. 1C is a schematic flowchart of a control method of an ultrasonic module according to an embodiment of the present disclosure;

fig. 1D is a schematic illustration of a fingerprint acquisition area provided in an embodiment of the present application;

fig. 2 is a schematic flowchart of another control method for an ultrasonic module according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

fig. 4A is a block diagram of functional units of a control device of an ultrasonic module according to an embodiment of the present disclosure;

fig. 4B is a block diagram of functional units of a control device of another ultrasound module according to an embodiment of the present disclosure;

fig. 4C is a block diagram of functional units of a control device of another ultrasound module according to an embodiment of the present disclosure.

Detailed Description

In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The electronic device related to the embodiments of the present application may include various handheld devices, vehicle-mounted devices, wearable devices (smart watches, smart bracelets, wireless headsets, augmented reality/virtual reality devices, smart glasses), computing devices or other processing devices connected to wireless modems, and various forms of User Equipment (UE), Mobile Stations (MS), terminal devices (terminal device), and the like, which have wireless communication functions. For convenience of description, the above-mentioned devices are collectively referred to as electronic devices.

The following describes embodiments of the present application in detail.

Referring to fig. 1A, fig. 1A is a schematic structural diagram of an electronic device disclosed in an embodiment of the present application, the electronic device 100 includes a storage and processing circuit 110, and a sensor 170 connected to the storage and processing circuit 110, where:

the electronic device 100 may include control circuitry, which may include storage and processing circuitry 110. The storage and processing circuitry 110 may be a memory, such as a hard drive memory, a non-volatile memory (e.g., flash memory or other electronically programmable read-only memory used to form a solid state drive, etc.), a volatile memory (e.g., static or dynamic random access memory, etc.), etc., and the embodiments of the present application are not limited thereto. Processing circuitry in storage and processing circuitry 110 may be used to control the operation of electronic device 100. The processing circuitry may be implemented based on one or more microprocessors, microcontrollers, digital signal processors, baseband processors, power management units, audio codec chips, application specific integrated circuits, display driver integrated circuits, and the like.

The storage and processing circuitry 110 may be used to run software in the electronic device 100, such as an Internet browsing application, a Voice Over Internet Protocol (VOIP) telephone call application, an email application, a media playing application, operating system functions, and so forth. Such software may be used to perform control operations such as, for example, camera-based image capture, ambient light measurement based on an ambient light sensor, proximity sensor measurement based on a proximity sensor, information display functionality based on status indicators such as status indicator lights of light emitting diodes, touch event detection based on a touch sensor, functionality associated with displaying information on multiple (e.g., layered) display screens, operations associated with performing wireless communication functionality, operations associated with collecting and generating audio signals, control operations associated with collecting and processing button press event data, and other functions in the electronic device 100, to name a few.

The electronic device 100 may include input-output circuitry 150. The input-output circuit 150 may be used to enable the electronic device 100 to input and output data, i.e., to allow the electronic device 100 to receive data from an external device and also to allow the electronic device 100 to output data from the electronic device 100 to the external device. The input-output circuit 150 may further include a sensor 170. The sensor 170 may include an ultrasonic module, and may further include an ambient light sensor, a proximity sensor based on light and capacitance, a touch sensor (for example, based on a light touch sensor and/or a capacitive touch sensor, where the touch sensor may be a part of a touch display screen, or may be used independently as a touch sensor structure), an acceleration sensor, a temperature sensor, and other sensors, and the ultrasonic module may be integrated below the screen, which is not limited herein, and may be used to collect a fingerprint image, and the temperature sensor may be used to detect a battery temperature.

Input-output circuit 150 may also include one or more display screens, such as display screen 130. The display 130 may include one or a combination of liquid crystal display, organic light emitting diode display, electronic ink display, plasma display, display using other display technologies. The display screen 130 may include an array of touch sensors (i.e., the display screen 130 may be a touch display screen). The touch sensor may be a capacitive touch sensor formed by a transparent touch sensor electrode (e.g., an Indium Tin Oxide (ITO) electrode) array, or may be a touch sensor formed using other touch technologies, such as acoustic wave touch, pressure sensitive touch, resistive touch, optical touch, and the like, and the embodiments of the present application are not limited thereto.

The electronic device 100 may also include an audio component 140. The audio component 140 may be used to provide audio input and output functionality for the electronic device 100. The audio components 140 in the electronic device 100 may include a speaker, a microphone, a buzzer, a tone generator, and other components for generating and detecting sound.

The communication circuit 120 may be used to provide the electronic device 100 with the capability to communicate with external devices. The communication circuit 120 may include analog and digital input-output interface circuits, and wireless communication circuits based on radio frequency signals and/or optical signals. The wireless communication circuitry in communication circuitry 120 may include radio-frequency transceiver circuitry, power amplifier circuitry, low noise amplifiers, switches, filters, and antennas. For example, the wireless Communication circuitry in Communication circuitry 120 may include circuitry to support Near Field Communication (NFC) by transmitting and receiving Near Field coupled electromagnetic signals. For example, the communication circuit 120 may include a near field communication antenna and a near field communication transceiver. The communications circuitry 120 may also include a cellular telephone transceiver and antenna, a wireless local area network transceiver circuitry and antenna, and so forth.

The electronic device 100 may further include a battery, power management circuitry, and other input-output units 160. The input-output unit 160 may include buttons, joysticks, click wheels, scroll wheels, touch pads, keypads, keyboards, cameras, light emitting diodes and other status indicators, and the like.

A user may input commands through input-output circuitry 150 to control the operation of electronic device 100, and may use output data of input-output circuitry 150 to enable receipt of status information and other outputs from electronic device 100.

In a possible example, taking the ultrasonic module below the screen as an example, as shown in fig. 1B, fig. 1B is a schematic structural diagram of an electronic device, and the electronic device 100 may include a Glass Cover plate (Cover Glass)210, a display screen (OLED)220, an adhesion layer (Adhesive)230, a substrate (TFT Glass)240, a Pixel layer (Pixel)250, a piezoelectric material layer (polymer) 260, an Ag Ink layer 270, and a solidified Adhesive layer (DAF) 280. Of course, the glass cover plate may further include a film layer (film), which may be a tempered film for protecting the display screen of the electronic device.

Further, the ultrasonic module may include: the TFT Glass layer, the Pixel layer, the Ag Ink layer and the solidification glue layer. The TFT Glass layer is used for metal wiring and material coating; the Pixel layer is used for embedding a Metal electrode on the TFT Glass, is used as a cathode for ultrasonic transmission/reception and is also called a piezoelectric transduction material, and can realize material deformation-voltage interconversion; an Ag Ink layer used as a positive electrode for ultrasonic transmission/reception; the DAF is a solidified glue and is used for protecting the ultrasonic module; the Adhesive layer is the Adhesive for standing the ultrasonic module at the bottom of the OLED screen.

In a specific implementation, the ultrasound module may include 2 states, a TX state (for transmitting ultrasound) and an RX state (for receiving ultrasound).

In a TX state, high-frequency (usually 10MHz level) oscillation signals such as sine waves are provided through electrodes (a Pixel negative electrode and an Ag Ink positive electrode) at two ends of a Copolymer (piezoelectric material), the Copolymer can generate vibration of response frequency and emit ultrasonic waves, the ultrasonic waves transmitted upwards reach fingerprints in contact with the surface of a screen after penetrating through an OLED screen, and when fingerprint valley ridges are attached to the screen, the difference between the acoustic resistance characteristic of air in the fingerprint valleys and the acoustic resistance characteristic of glass on the surface of the screen is large, the difference between the acoustic resistance characteristic of skin tissues of the fingerprint ridges and the acoustic resistance characteristic of glass on the surface of the screen is large, so the intensity of ultrasonic reflection signals of the fingerprint valley ridges is different.

In an RX state, after reflected ultrasonic waves pass through the display screen again and reach the ultrasonic module (Pixel-Copolymer-Ag Ink), the Copolymer is caused to vibrate to generate electric signals, the vibration intensity of the Copolymer in Pixel areas corresponding to fingerprint valley ridges at different positions is different, so that potential differences received by the pixels at different positions are different (the Ag Ink is equal potential), the potential differences are converted into two-dimensional image signals, and an ultrasonic fingerprint image is obtained.

The electronic device described with reference to fig. 1A and 1B may be configured to implement the following functions:

In one possible example, in the determining the target operating parameter of the ultrasound module corresponding to the target attribute parameter, the processing circuit is specifically configured to:

and determining the target working parameters corresponding to the target attribute parameters according to the mapping relation between the preset attribute parameters of the protective film and the working parameters of the ultrasonic module.

In one possible example, when the protective film needs to be replaced, the processing circuit is further specifically configured to:

acquiring the working parameter range of the ultrasonic module;

determining a to-be-recommended protective film set corresponding to the working parameter range, wherein the to-be-recommended protective film set comprises at least one protective film;

acquiring a target demand parameter of a target object;

and selecting a protective film from the protective film set to be recommended as a target recommended protective film according to the target demand parameters.

In one possible example, the electronic device further comprises: a temperature sensor, wherein,

the temperature sensor is used for acquiring a first battery temperature corresponding to the target working parameter; monitoring the battery temperature of the electronic equipment;

the processing circuit is further configured to adjust the target working parameter according to the temperature change amount when the temperature change amount of the first battery temperature meets a preset requirement, so as to obtain the adjusted target working parameter.

In one possible example, in terms of the adjusting the target operating parameter according to the temperature change amount, the processing circuit is specifically configured to:

determining a target adjustment coefficient corresponding to the temperature change according to a mapping relation between a preset change and an adjustment coefficient;

and adjusting the target working parameters according to the target adjustment coefficient.

It can be seen that, the electronic equipment described in the embodiment of this application, this electronic equipment include ultrasonic wave module and display screen, the ultrasonic wave module set up in the display screen below, the display screen top is attached with the protection film, acquires the target attribute parameter of protection film, confirms that corresponds with target attribute parameter the target working parameter of ultrasonic wave module, work with target working parameter through the ultrasonic wave module, can be under the condition of display screen pad pasting, control the ultrasonic wave module and carry out work with the corresponding working parameter of protection film, help promoting work efficiency, for example, promote the fingerprint of ultrasonic wave module, palm line collection efficiency, for example again, promote the approaching detection ability of ultrasonic wave module.

Referring to fig. 1C, fig. 1C is a schematic flow chart of a control method of an ultrasonic module according to an embodiment of the present disclosure, and as shown in the drawing, the control method is applied to an electronic device shown in fig. 1A, where the electronic device includes an ultrasonic module and a display screen, the ultrasonic module is disposed below the display screen, and a protective film is attached to the display screen; the control method of the ultrasonic module comprises the following steps:

101. and acquiring target attribute parameters of the protective film.

Wherein the target property parameter of the protective film may be at least one of: thickness, material, type, etc., without limitation.

102. And determining target working parameters of the ultrasonic module corresponding to the target attribute parameters.

The target working parameter of the ultrasonic module can be at least one of the following: the transmitting power of the ultrasonic module, the operating frequency of the ultrasonic module, the operating wavelength of the ultrasonic module, the operating current of the ultrasonic module, the operating voltage of the ultrasonic module, the operating power of the ultrasonic module, and the like, which are not limited herein.

In one possible example, the step 102 of determining the target operating parameter of the ultrasonic module corresponding to the target attribute parameter may be implemented as follows:

The mapping relationship between the attribute parameters of the preset protective film and the working parameters of the ultrasonic module can be stored in the electronic equipment in advance, and is shown in the following table:

attribute parameter	Operating parameters
		A1	B1
A2	B2
		A3	B3
…	…
		An	Bn

In specific implementation, the electronic device may obtain the target attribute parameter of the protection film after the protection film is attached, and then determine the target working parameter corresponding to the protection film according to a mapping relationship between the attribute parameter of the preset protection film and the working parameter of the ultrasonic module, which is stored in advance.

103. And working according to the target working parameters through the ultrasonic module.

Wherein, the ultrasonic wave module can be integrated in the display screen below, as shown in fig. 1D, the ultrasonic wave module corresponds the biological information collection region, and the biological information collection region corresponds the touch-control region of whole or partial display screen, and the biological information collection region can realize carrying out fingerprint collection or realizing palm print collection to one or more fingers. Touch-control is arrived or is close the touch-control area of the display screen that biological information acquisition area corresponds at the finger, then electronic equipment can carry out fingerprint collection through the ultrasonic wave module, obtains the target fingerprint image.

In a possible example, before the step 103, the following steps may be further included:

a1, carrying out proximity detection through the ultrasonic module;

a2, when the distance between the approaching object and the ultrasonic module is detected to be smaller than a first preset distance, acquiring a target image of the approaching object;

a3, extracting the contour of the target image to obtain a target contour image;

a4, when the target contour image meets the preset requirement, confirming that the approaching object is a finger, and when the distance between the approaching object and the ultrasonic module is smaller than a second preset distance, executing the step of working with the target working parameters through the ultrasonic module, wherein the second preset distance is smaller than the first preset distance.

The first preset distance and the second preset distance can be set by a user or defaulted by a system, and the second preset distance is smaller than the first preset distance. The proximity object may be a finger or other object. The preset requirements can also be set by the user or default by the system, for example, if the shape of the target contour image is a finger contour shape, it is determined that the target contour image meets the preset requirements, and if the average width of the target contour image is within a preset range, it is determined that the target contour image meets the preset requirements, and the like, in a specific implementation, the electronic device can perform proximity detection through the ultrasonic module, and when it is detected that the distance between the proximity object and the ultrasonic module is less than a first preset distance, it can acquire the target image of the proximity object, and further, can perform contour extraction on the target image, specifically, can perform hough transformation on the target image to obtain the target contour image, and when the target contour image meets the preset requirements, it is determined that the proximity object is a finger, and further, when the distance between the proximity object and the ultrasonic module is less than a second preset distance, and (5) working.

In a possible example, when the protective film needs to be replaced, after the step 103, the following steps may be further included:

b1, acquiring the working parameter range of the ultrasonic module;

b2, determining a to-be-recommended protective film set corresponding to the working parameter range, wherein the to-be-recommended protective film set comprises at least one protective film;

b3, acquiring target demand parameters of the target object;

b4, selecting a protective film from the protective film set to be recommended as a target recommended protective film according to the target demand parameters.

The target object may be the electronic device or the user, and the target requirement parameter may be at least one of: price, model, thickness, etc., without limitation. In the specific implementation, the electronic device can acquire a working parameter range of the ultrasonic module, including a working parameter upper limit and a working parameter lower limit, and further can determine a to-be-recommended protective film set corresponding to the working parameter range, the to-be-recommended protective film set includes at least one protective film, and a target demand parameter can be acquired, the target demand parameter can be input by a user, and then a protective film can be selected from the to-be-recommended protective film set as a target recommended protective film according to the target demand parameter. In specific implementation, the requirement for replacing the protection film may include that, for example, the protection film is broken, or a user wants to replace a new protection film, and in the case that the protection film is broken, the electronic device may also detect whether the protection film is damaged through the ultrasonic module, for example, when a user does not press the display screen with a finger, image acquisition may be performed to obtain an image of the protection film, detect whether a gap exists in the image of the protection film, and if a gap exists, it is determined that the protection film is damaged, or may also detect the transmitted ultrasonic wave and receive the ultrasonic wave, and if a ratio between a component of the received ultrasonic wave and a component of the transmitted ultrasonic wave is smaller than a certain threshold, it is determined that the protection film is damaged, and after all, a part of the ultrasonic wave cannot be transmitted back.

In one possible example, after the step 103, the following steps may be further included:

c1, acquiring a first battery temperature corresponding to the target working parameter;

c2, monitoring the battery temperature of the electronic equipment;

and C3, when the temperature change quantity of the first battery temperature meets the preset requirement, adjusting the target working parameter according to the temperature change quantity to obtain the adjusted target working parameter.

The electronic device may detect the battery temperature in real time, specifically, the electronic device may include a temperature sensor, and the battery temperature may be detected by the temperature sensor, and further, the first battery temperature corresponding to the target operating parameter may be obtained, and further, the battery temperature of the electronic device may be monitored, where the preset requirement may be set by a user or default to a system, in this embodiment of the present application, the temperature change amount may be a positive number or a negative number, for example, the temperature change amount is greater than a certain temperature or less than a certain temperature, when the temperature change amount of the first battery temperature meets the preset requirement, the target operating parameter may be adjusted according to the temperature change amount, of course, one or more parameters of the target operating parameter may be adjusted, for example, the transmission power of the ultrasonic module may be adjusted, and further, obtaining the adjusted target working parameters.

In one possible example, the step C3, adjusting the target operating parameter according to the temperature change amount, may include the following steps:

c31, determining a target adjustment coefficient corresponding to the temperature change according to a preset mapping relation between the change and the adjustment coefficient;

and C32, adjusting the target working parameters according to the target adjustment coefficient.

In a specific implementation, the target operating parameter may be adjusted according to the target adjustment coefficient, for example, the adjusted target operating parameter is (1+ target adjustment coefficient) — the target operating parameter, and for example, the adjusted target operating parameter is +/-the target operating parameter, and the like, which is not limited herein.

In one possible example, after the step 103, a target fingerprint image may be obtained, and the following steps may be further included:

d1, matching the target fingerprint image with a preset fingerprint template;

d2, when the target fingerprint image is successfully matched with the preset fingerprint template, carrying out unlocking operation.

The preset fingerprint template can be pre-stored in the electronic equipment. The unlocking operation may be at least one of: entering a main page by locking or blank screen, or starting a preset application by locking or blank screen, or executing a preset operation, wherein the preset operation can be at least one of the following operations: deletion operation, modification operation, compression operation, selection operation, photographing operation, payment operation, and the like, without limitation. The electronic equipment can perform unlocking operation when the target fingerprint image is successfully matched with the preset fingerprint template, otherwise, when the target fingerprint image is unsuccessfully matched with the preset fingerprint template, the electronic equipment can prompt the user that the fingerprint unlocking is unsuccessfully performed, or prompt the user to perform fingerprint input again.

In one possible example, the step D1 of matching the target fingerprint image with the preset fingerprint template may include the following steps:

d11, carrying out image segmentation on the target fingerprint image to obtain a target fingerprint area image;

d12, analyzing the characteristic point distribution of the target fingerprint area image;

d13, performing circular image interception on the target fingerprint area image according to M different circle centers to obtain M circular fingerprint area images, wherein M is an integer greater than 3;

d14, selecting a target circular fingerprint area image from the M circular fingerprint area images, wherein the number of characteristic points contained in the target circular fingerprint area image is larger than that of other circular fingerprint area images in the M circular fingerprint area images;

d15, dividing the target circular fingerprint area image to obtain N circular rings, wherein the widths of the N circular rings are the same;

d16, starting from the circular ring with the smallest radius in the N circular rings, sequentially matching the N circular rings with the preset fingerprint template for feature points, and accumulating the matching values of the matched circular rings;

d17, stopping matching the feature points immediately when the accumulated matching value is larger than the target fingerprint identification threshold value, and outputting a prompt message that the fingerprint identification is successful.

Wherein, the electronic device can perform image segmentation on a target fingerprint image to obtain a target fingerprint area image, further analyze the feature point distribution of the target fingerprint area image, perform circular image interception on the target fingerprint area image according to M different circle centers to obtain M circular fingerprint area images, M is an integer greater than 3, select the target circular fingerprint area image from the M circular fingerprint area images, the number of the feature points contained in the target circular fingerprint area image is greater than that of other circular fingerprint area images in the M circular fingerprint area images, divide the target circular fingerprint area image to obtain N circular rings, the ring widths of the N circular rings are the same, perform feature point matching on the N circular rings with a preset fingerprint template in sequence from the circular ring with the smallest radius among the N circular rings, and accumulate the matching values of the matched circular rings, thus, in the fingerprint identification process, the feature points of different positions or different fingerprints can be used for matching, namely, the whole fingerprint image is sampled, and the sampling can cover the whole fingerprint area, so that corresponding representative features can be found from each area for matching, when the accumulated matching value is greater than the target fingerprint identification threshold value, the feature point matching is immediately stopped, and the prompt message of the fingerprint identification success is output, therefore, the fingerprint identification can be quickly and accurately identified.

It can be seen that the control method of the ultrasonic module described in the embodiment of the present application is applied to an electronic device, the electronic device includes the ultrasonic module and a display screen, the ultrasonic module is disposed below the display screen, a protective film is attached to the upper portion of the display screen, a target attribute parameter of the protective film is obtained, a target working parameter of the ultrasonic module corresponding to the target attribute parameter is determined, the ultrasonic module is operated according to the target working parameter, the ultrasonic module can be controlled to operate according to the working parameter corresponding to the protective film under the condition that the display screen is pasted with the film, and work efficiency is improved.

Referring to fig. 2 in a manner consistent with the embodiment shown in fig. 1C, fig. 2 is a schematic flow chart of a control method of an ultrasonic module according to an embodiment of the present disclosure, and as shown in the figure, the control method is applied to an electronic device shown in fig. 1A, where the electronic device includes an ultrasonic module and a display screen, the ultrasonic module is disposed below the display screen, and a protective film is attached to the display screen; the control method of the ultrasonic module comprises the following steps:

201. and acquiring target attribute parameters of the protective film.

202. And determining target working parameters of the ultrasonic module corresponding to the target attribute parameters.

203. And working according to the target working parameters through the ultrasonic module.

204. And when the protective film needs to be replaced, acquiring the working parameter range of the ultrasonic module.

205. And determining a protection film set to be recommended corresponding to the working parameter range, wherein the protection film set to be recommended comprises at least one protection film.

206. And acquiring a target demand parameter of the target object.

207. And selecting a protective film from the protective film set to be recommended as a target recommended protective film according to the target demand parameters.

The detailed description of the steps 201 to 207 may refer to the corresponding steps of the control method of the ultrasonic module described in the above fig. 1C, and will not be repeated herein.

It can be seen that the control method of the ultrasonic module described in the embodiments of the present application is applied to an electronic device, the electronic device includes an ultrasonic module and a display screen, the ultrasonic module is disposed below the display screen, a protective film is attached above the display screen, a target attribute parameter of the protective film is obtained, a target working parameter of the ultrasonic module corresponding to the target attribute parameter is determined, the ultrasonic module is operated with the target working parameter, when the protective film needs to be replaced, a working parameter range of the ultrasonic module is obtained, a set of protective films to be recommended corresponding to the working parameter range is determined, the set of protective films to be recommended includes at least one type of protective film, a target demand parameter of a target object is obtained, a type of protective film is selected from the set of protective films to be recommended according to the target demand parameter as a target recommended protective film, and not only in the case of pasting the display screen, control ultrasonic wave module with the corresponding working parameter of protection film work, help promoting work efficiency, can also recommend suitable protection film according to user's demand when the protection film needs to be changed.

In accordance with the foregoing embodiments, please refer to fig. 3, where fig. 3 is a schematic structural diagram of an electronic device provided in an embodiment of the present application, and as shown in the drawing, the electronic device includes a processor, a memory, a communication interface, and one or more programs, the electronic device includes an ultrasonic module and a display screen, the ultrasonic module is disposed below the display screen, a protective film is attached above the display screen, the one or more programs are stored in the memory and configured to be executed by the processor, and in an embodiment of the present application, the program includes instructions for performing the following steps:

acquiring target attribute parameters of the protective film;

In one possible example, in the determining the target operating parameter of the ultrasound module corresponding to the target property parameter, the program includes instructions for:

It can be seen that the electronic equipment that describes in the embodiment of this application, this electronic equipment include ultrasonic wave module and display screen, and the ultrasonic wave module sets up in the display screen below, and the display screen top is attached with the protection film, acquires the target attribute parameter of protection film, confirms that corresponds with target attribute parameter the target working parameter of ultrasonic wave module carries out work with target working parameter through the ultrasonic wave module, can be under the condition of display screen pad pasting, control the ultrasonic wave module and carry out work with the corresponding working parameter of protection film, help promoting work efficiency.

In one possible example, when the protective film needs to be replaced, the program further includes instructions for:

acquiring the working parameter range of the ultrasonic module;

acquiring a target demand parameter of a target object;

In one possible example, the program further includes instructions for performing the steps of:

acquiring a first battery temperature corresponding to the target working parameter;

monitoring a battery temperature of the electronic device;

and when the temperature change quantity of the first battery temperature meets a preset requirement, adjusting the target working parameter according to the temperature change quantity to obtain the adjusted target working parameter.

In one possible example, in the adjusting the target operating parameter according to the temperature change amount, the program includes instructions for:

The above description has introduced the solution of the embodiment of the present application mainly from the perspective of the method-side implementation process. It is understood that the electronic device comprises corresponding hardware structures and/or software modules for performing the respective functions in order to realize the above-mentioned functions. Those of skill in the art will readily appreciate that the present application is capable of hardware or a combination of hardware and computer software implementing the various illustrative elements and algorithm steps described in connection with the embodiments provided herein. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, the electronic device may be divided into the functional units according to the method example, for example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.

Fig. 4A is a block diagram showing functional units of a control device 400 of an ultrasonic module according to an embodiment of the present application. The control device 400 of the ultrasonic module is applied to electronic equipment, wherein the electronic equipment comprises the ultrasonic module and a display screen, the ultrasonic module is arranged below the display screen, and a protective film is attached to the upper part of the display screen; the device comprises: a first acquisition unit 401, a first determination unit 402 and an acquisition unit 403, wherein,

the first acquiring unit 401 is configured to acquire a target attribute parameter of the protective film;

the first determining unit 402 is configured to determine a target working parameter of the ultrasonic module corresponding to the target attribute parameter;

the acquisition unit 403 is configured to operate according to the target operating parameter through the ultrasonic module.

It can be seen that, the controlling means of ultrasonic wave module described in the embodiment of this application is applied to electronic equipment, and this electronic equipment includes ultrasonic wave module and display screen, and the ultrasonic wave module sets up in the display screen below, and the display screen top is attached with the protection film, acquires the target attribute parameter of protection film, confirms that corresponds with target attribute parameter the target working parameter of ultrasonic wave module, work with target working parameter through the ultrasonic wave module, can be under the condition of display screen pad pasting, control the ultrasonic wave module and carry out work with the corresponding working parameter of protection film, help promoting work efficiency.

In one possible example, in the aspect of determining the target operating parameter of the ultrasonic module corresponding to the target attribute parameter, the first determining unit 402 is specifically configured to:

In one possible example, as shown in fig. 4B, fig. 4B is a further modified structure of the control device of the ultrasonic module shown in fig. 4A, which may further include, compared with fig. 4A: the second obtaining unit 404, the second determining unit 405, the third obtaining unit 406, and the selecting unit 407 are specifically as follows:

the second obtaining unit 404 is configured to obtain a working parameter range of the ultrasonic module when the protective film needs to be replaced;

the second determining unit 405 is configured to determine a set of to-be-recommended protective films corresponding to the working parameter range, where the set of to-be-recommended protective films includes at least one protective film;

the third obtaining unit 406 is configured to obtain a target demand parameter of a target object;

the selecting unit 407 is configured to select a protection film from the set of protection films to be recommended as a target recommended protection film according to the target demand parameter.

In one possible example, as shown in fig. 4C, fig. 4C is a further modified structure of the control device of the ultrasound module shown in fig. 4A, which may further include, compared with fig. 4A: the fourth obtaining unit 408, the monitoring unit 409, and the adjusting unit 401 are as follows:

the fourth obtaining unit 408 is configured to obtain a first battery temperature corresponding to the target operating parameter;

the monitoring unit 409 is used for monitoring the battery temperature of the electronic equipment;

the adjusting unit 410 is configured to adjust the target working parameter according to the temperature change amount when the temperature change amount of the first battery temperature meets a preset requirement, so as to obtain the adjusted target working parameter.

In a possible example, in terms of the adjusting the target operating parameter according to the temperature change amount, the adjusting unit 410 is specifically configured to:

It can be understood that the functions of each program module of the control device of the ultrasound module according to this embodiment can be specifically implemented according to the method in the foregoing method embodiment, and the specific implementation process thereof can refer to the related description of the foregoing method embodiment, which is not described herein again.

Embodiments of the present application also provide a computer storage medium, where the computer storage medium stores a computer program for electronic data exchange, the computer program enabling a computer to execute part or all of the steps of any one of the methods described in the above method embodiments, and the computer includes an electronic device.

Embodiments of the present application also provide a computer program product comprising a non-transitory computer readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps of any of the methods as described in the above method embodiments. The computer program product may be a software installation package, the computer comprising an electronic device.

It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units is only one type of division of logical functions, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit may be stored in a computer readable memory if it is implemented in the form of a software functional unit and sold or used as a stand-alone product. Based on such understanding, the technical solution of the present application may be substantially implemented or a part of or all or part of the technical solution contributing to the prior art may be embodied in the form of a software product stored in a memory, and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the above-mentioned method of the embodiments of the present application. And the aforementioned memory comprises: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.

Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable memory, which may include: flash Memory disks, Read-Only memories (ROMs), Random Access Memories (RAMs), magnetic or optical disks, and the like.

The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. An electronic device, comprising a processing circuit, an ultrasonic module and a display screen, wherein the ultrasonic module and the display screen are connected with the processing circuit, the ultrasonic module is arranged below the display screen, a protective film is attached on the display screen, wherein,

the processing circuit is used for acquiring a target attribute parameter of the protective film, wherein the target attribute parameter is at least one of the following parameters: thickness, material, type; determining target working parameters of the ultrasonic module corresponding to the target attribute parameters, wherein the target working parameters at least comprise working wavelengths of the ultrasonic module;

2. The electronic device according to claim 1, wherein in said determining a target operating parameter of the ultrasound module corresponding to the target attribute parameter, the processing circuit is specifically configured to:

3. The electronic device according to claim 1 or 2, wherein when the protective film needs to be replaced, the processing circuit is further specifically configured to:

acquiring the working parameter range of the ultrasonic module;

acquiring a target demand parameter of a target object;

4. The electronic device of claim 1 or 2, further comprising: a temperature sensor, wherein,

5. The electronic device according to claim 4, wherein in said adjusting the target operating parameter according to the amount of temperature change, the processing circuit is specifically configured to:

6. The control method of the ultrasonic module is characterized by being applied to electronic equipment, wherein the electronic equipment comprises the ultrasonic module and a display screen, the ultrasonic module is arranged below the display screen, and a protective film is attached to the upper side of the display screen; the method comprises the following steps:

obtaining a target attribute parameter of the protective film, wherein the target attribute parameter is at least one of the following parameters: thickness, material, type;

and working according to the target working parameters through the ultrasonic module, wherein the target working parameters at least comprise the working wavelength of the ultrasonic module.

7. The method of claim 6, wherein said determining target operating parameters of said ultrasound module corresponding to said target property parameters comprises:

8. The method of claim 6 or 7, wherein when the protective film needs to be replaced, the method further comprises:

acquiring the working parameter range of the ultrasonic module;

acquiring a target demand parameter of a target object;

9. The method according to claim 6 or 7, characterized in that the method further comprises:

monitoring a battery temperature of the electronic device;

10. The method of claim 9, wherein said adjusting said target operating parameter based on said amount of temperature change comprises:

11. The control device of the ultrasonic module is characterized by being applied to electronic equipment, wherein the electronic equipment comprises the ultrasonic module and a display screen, the ultrasonic module is arranged below the display screen, and a protective film is attached to the upper side of the display screen; the device comprises: a first acquisition unit, a first determination unit and an acquisition unit, wherein,

the first acquiring unit is used for acquiring a target attribute parameter of the protective film, wherein the target attribute parameter is at least one of the following parameters: thickness, material, type;

the first determining unit is used for determining target working parameters of the ultrasonic module corresponding to the target attribute parameters, and the target working parameters at least comprise working wavelengths of the ultrasonic module;

12. An electronic device comprising a processor, a memory for storing one or more programs and configured for execution by the processor, the programs comprising instructions for performing the steps of the method of any of claims 6-10.

13. A computer-readable storage medium, characterized in that a computer program for electronic data exchange is stored, wherein the computer program causes a computer to perform the method according to any of the claims 6-10.