WO2021017945A1

WO2021017945A1 - Electronic device control method and apparatus, electronic device, and storage medium

Info

Publication number: WO2021017945A1
Application number: PCT/CN2020/103291
Authority: WO
Inventors: 严锋贵
Original assignee: Oppo广东移动通信有限公司
Priority date: 2019-07-31
Filing date: 2020-07-21
Publication date: 2021-02-04
Also published as: CN110519449B; CN110519449A

Abstract

Disclosed in the present application are an electronic device control method and apparatus, an electronic device, and a storage medium. The method comprises: transmitting a first ultrasonic signal by means of a first ultrasonic transmitter, and transmitting a second ultrasonic signal by means of a second ultrasonic transmitter; determining a time when a first ultrasonic receiver receives a first target signal as a first time, wherein the first target signal a signal meeting a first preset condition in first ultrasonic signals reflected back by an object; determining the time when a second ultrasonic receiver receives a second target signal as a second time, wherein the second target signal is a signal meeting a second preset condition in second ultrasonic signals reflected back by the object; obtaining a control instruction corresponding to a time difference between the first time and the second time; and according to the control instruction, performing a corresponding operation. The solution can perform control on the electronic device without being in contact with the electronic device.

Description

Electronic equipment control method, device, electronic equipment and storage medium

This application claims the priority of the Chinese patent application with the application number 201910701497.2 filed on July 31, 2019, and the entire content of which is incorporated herein by reference.

Technical field

This application relates to the technical field of electronic equipment, and more specifically to an electronic equipment control method, device, electronic equipment and storage medium.

Background technique

When controlling an electronic device, it needs to make contact with the electronic device, such as a touch screen of a touch electronic device, a physical button of a touch electronic device, and so on. However, in some scenarios, it may be inconvenient for the user to touch the electronic device, which makes it inconvenient to use under touch-based control.

Summary of the invention

In view of the above-mentioned problems, this application proposes an electronic device control method, device, electronic device, and storage medium, which can control the electronic device without contacting the electronic device to improve the above-mentioned problem.

In the first aspect, an embodiment of the present application provides an electronic device control method, which is applied to an electronic device, the electronic device includes a first ultrasonic transmitter and a first ultrasonic receiver provided at the first end of the electronic device, and A second ultrasonic transmitter and a second ultrasonic receiver provided at the second end of the electronic device, the method includes: transmitting a first ultrasonic signal through the first ultrasonic transmitter, and transmitting through the second ultrasonic transmitter The second ultrasonic signal; determine the time when the first ultrasonic receiver receives the first target signal as the first time, and the first target signal is the first ultrasonic signal reflected by the object that meets the first preset condition Signal; determine the time when the second ultrasonic receiver receives the second target signal as the second time, the second target signal being a signal that meets a second preset condition among the second ultrasonic signals reflected by the object; The control instruction corresponding to the time difference between the first time and the second time; and corresponding operations are performed according to the control instruction.

In a second aspect, an embodiment of the present application provides an electronic device control device, which is applied to an electronic device, the electronic device including a first ultrasonic transmitter and a first ultrasonic receiver provided at the first end of the electronic device, and A second ultrasonic transmitter and a second ultrasonic receiver are provided at the second end of the electronic device. The device includes: an ultrasonic transmitter module for transmitting a first ultrasonic signal through the first ultrasonic transmitter and The second ultrasonic transmitter sends a second ultrasonic signal; the first time determining module is used to determine the time when the first ultrasonic receiver receives the first target signal as the first time, and the first target signal is reflected by an object The first ultrasonic signal that meets the first preset condition; the second time determining module is used to determine the time when the second ultrasonic receiver receives the second target signal as the second time, the second target The signal is a signal that satisfies the second preset condition in the second ultrasonic signal reflected by the object; the instruction acquisition module is used to acquire the control instruction corresponding to the time difference between the first time and the second time; the control module is used to The control instruction executes the corresponding operation.

In a third aspect, an embodiment of the present application provides an electronic device, including a first ultrasonic transmitter and a first ultrasonic receiver provided at the first end of the electronic device, and a second ultrasonic wave provided at the second end of the electronic device A transmitter and a second ultrasonic receiver, a memory and a processor, the first end is opposite to the second end, the memory, the first ultrasonic transmitter, the first ultrasonic receiver, the second ultrasonic transmitter, and the first Two ultrasonic receivers are coupled to the processor, the first ultrasonic transmitter and the second ultrasonic transmitter are used for transmitting ultrasonic signals, the first ultrasonic receiver and the second ultrasonic receiver are used for receiving ultrasonic signals, the The memory stores instructions, and when the instructions are executed by the processor, the processor executes the above-mentioned method.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, the computer-readable storage medium stores program code, and the program code can be invoked by a processor to execute the above-mentioned method.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

Fig. 1 shows a schematic structural diagram of an electronic device provided by an embodiment of the present application.

FIG. 2 shows a schematic diagram of receiving ultrasonic waves from different paths according to an embodiment of the present application.

Fig. 3 shows a schematic diagram of an ultrasonic wave sending, receiving and data processing flow provided by an embodiment of the present application.

FIG. 4 shows a schematic diagram of an air-space operation provided by an embodiment of the present application.

Fig. 5 shows another schematic diagram of an air-space operation provided by an embodiment of the present application.

Fig. 6 shows a flow chart of the electronic device control method provided by the embodiment of the present application.

FIG. 7 shows another flowchart of the electronic device control method provided by the embodiment of the present application.

Figure 8 shows a schematic diagram of the Doppler effect.

FIG. 9 shows a schematic diagram of a numerical interval division provided by an embodiment of the present application.

Fig. 10 shows a functional module diagram of an electronic device control apparatus provided by an embodiment of the present application.

Fig. 11 shows a structural block diagram of an electronic device provided by an embodiment of the present application.

Fig. 12 is a storage medium for storing or carrying program codes for implementing the electronic device control method according to the embodiment of the present application.

Detailed ways

In order to enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

The control of the electronic equipment on the basis of not touching the electronic equipment can be achieved by infrared sensors. However, the infrared sensor has a single infrared emission direction, which must face the front of the screen of the electronic device. It may not be easy to detect the sliding on the front of the screen, which is not conducive to the overall screen layout design, and has certain usage limitations.

As a kind of sound wave, ultrasonic waves radiate in the form of waves, and the radiation range is relatively wide. It does not need to be completely facing the front of the screen, and the ultrasonic waves can also be sent to the top of the front of the screen. Therefore, in the embodiment of the present application, ultrasonic waves are used to achieve Non-contact control.

An ultrasonic transmitter and an ultrasonic receiver can be set in the electronic device. The ultrasonic transmitter is used to transmit ultrasonic waves, that is, the ultrasonic signal in the embodiment of this application; the ultrasonic receiver can receive ultrasonic waves, that is, the ultrasonic signal in the embodiment of this application.

In the embodiment of the present application, the electronic device may include opposite first and second ends. For example, as shown in FIG. 1, the first end 110 is the bottom of the electronic device 100, and the second end 120 is the top of the electronic device. Of course, the specific ends of the first end 110 and the second end 120 are not limited in the embodiments of the present application. For example, the first end 110 may also be the top of the electronic device 100, and the second end 120 may be the bottom of the electronic device 100. The first end 110 may also be the left end of the electronic device, and the second end 120 may also be the right end of the electronic device.

As shown in FIG. 1, an ultrasonic transmitter 111 and an ultrasonic receiver 112 may be provided at the first end 110. In the embodiment of the present application, the ultrasonic transmitter at the first end is defined as the first ultrasonic transmitter 111, and the first end The ultrasonic receiver is the first ultrasonic receiver 112. The second end 120 is also provided with an ultrasonic transmitter 121 and an ultrasonic receiver 122. In the embodiment of the present application, the ultrasonic transmitter at the second end is defined as the second ultrasonic transmitter 121, and the ultrasonic receiver at the second end is defined as the second ultrasonic wave. Receiver 122.

Among them, the ultrasonic transmitter may be an electronic device's earpiece, horn, special ultrasonic transmitter, etc., and the ultrasonic receiver may be a pickup that can receive ultrasonic waves.

Electronic equipment transmits ultrasonic waves through the ultrasonic wave transmitter. A part of the ultrasonic waves travels through the air and reaches the ultrasonic receiver (path 1 in Figure 2), and a part of the ultrasonic waves travels through the air and is reflected by obstructions before reaching the ultrasonic receiver (as shown in Figure 2). In path 2, the ultrasonic wave sent from the ultrasonic transmitter 111 is blocked by the hand and reflected back to the ultrasonic receiver 112). What the ultrasonic receiver picks up is the superimposed signal of the direct sound and the reflected sound, as shown in Figure 3, which is converted into an audio signal by an A/D converter. The direct sound is the ultrasonic signal that is sent from the ultrasonic transmitter and is directly received by the ultrasonic receiver, as shown in the ultrasonic signal of path 1 in Figure 2. The reflected sound is the ultrasonic signal reflected by the object received by the ultrasonic receiver, as shown in Path 2 in Figure 2. Ultrasonic signal.

Electronic equipment can distinguish between direct sound and reflected sound from the ultrasonic signal received by the ultrasonic receiver.

As an implementation manner, the direct sound and the reflected sound can be determined according to time. Specifically, because the distance between the ultrasonic transmitter and the ultrasonic receiver is constant, the propagation speed of ultrasonic waves in the air is basically the same. Therefore, the time required for direct sound to be transmitted from the ultrasonic transmitter to the ultrasonic receiver can be determined in advance and stored . Therefore, the electronic device can determine whether the received ultrasonic wave is direct sound or reflected sound according to the time difference when the ultrasonic wave received by the ultrasonic receiver is sent. If it is a direct sound, the time difference between when the ultrasonic wave is received and when it is transmitted should be equal to the stored time.

As an embodiment, the direct sound and the reflected sound can be determined according to the frequency. When an object moves relative to the electronic device, according to the Doppler effect, the frequency of the ultrasonic wave reflected to the electronic device is different from the frequency when the ultrasonic wave is transmitted, and the frequency of the direct sound is the same as the frequency when the ultrasonic wave is transmitted. Therefore, if the frequency of the received ultrasonic signal is different from the frequency of the transmitted ultrasonic wave, it is determined as the reflected sound.

As an implementation manner, the direct sound and the reflected sound can be determined according to the phase. Since the ultrasonic wave is received by the receiver after being reflected, it will produce a phase difference relative to the transmitted ultrasonic wave, so according to the phase difference between the received ultrasonic signal and the transmitted difference signal, it is determined whether the received ultrasonic signal is direct sound or reflected sound .

In the embodiments of the present application, the method for distinguishing the direct sound and the reflected sound from the received ultrasonic signal is not limited, and may include one or more of the above-mentioned embodiments, which are merely illustrative.

It can be understood that FIG. 2 shows the direct sound and the reflected sound between the first ultrasonic transmitter 111 and the first ultrasonic receiver 112 disposed at the first end 110 of the electronic device. The direct sound and the reflected sound between the second ultrasonic transmitter 121 and the second ultrasonic receiver 122 at the second end 120 are similar to those at the first end, and will not be repeated here.

Optionally, in this embodiment of the application, the ultrasonic transmitter and ultrasonic receiver may be configured such that the ultrasonic signal sent by the first ultrasonic transmitter cannot reach the second ultrasonic receiver directly, and the ultrasonic signal sent by the second ultrasonic transmitter cannot Directly to the first ultrasonic receiver; the ultrasonic signal sent by the first ultrasonic transmitter cannot be reflected to the second ultrasonic receiver, and the ultrasonic signal sent by the second ultrasonic transmitter cannot be reflected to the first ultrasonic receiver.

In addition, if the first ultrasonic receiver can receive the direct sound sent by the second ultrasonic transmitter, the direct sound can also be distinguished from the reflected sound reflected by the obstruction according to conditions such as time, frequency, and phase. If the second ultrasonic receiver can receive the direct sound sent by the first ultrasonic transmitter, the direct sound can also be distinguished from the reflected sound reflected by the obstruction according to conditions such as time, frequency, and phase. Or the first ultrasonic transmitter and the second ultrasonic transmitter transmit ultrasonic waves of different frequencies, and the different frequencies cannot be the frequency of the reflected ultrasonic waves. If the first ultrasonic energy receiver can receive the reflected sound of the second ultrasonic transmitter, or the second ultrasonic receiver can receive the reflected sound of the first ultrasonic transmitter, the transmission of the first ultrasonic transmitter and the second ultrasonic transmitter are different The frequency of the ultrasonic wave, and the different frequency cannot be the frequency of the reflected ultrasonic wave. Therefore, according to the frequency of the received ultrasonic signal, the ultrasonic signal received by the first ultrasonic receiver can be directly included in the ultrasonic signal sent by the second ultrasonic transmitter. The signal and the reflected ultrasonic signal of the second ultrasonic transmitter are eliminated, directly eliminating the ultrasonic signal sent by the first ultrasonic transmitter and the reflected ultrasonic signal of the first ultrasonic transmitter from the ultrasonic signal received by the second ultrasonic receiver.

When the user passes an object, such as a hand, volleys from the electronic device screen in a direction that is roughly parallel to the screen, as shown in Figure 4 and Figure 5, the first ultrasonic receiver and the second ultrasonic receiver can receive the object reflection The return signal can be used to determine the sliding direction and sliding action of the object based on the signal, and determine the corresponding control method. Specifically, the embodiments of the present application provide an electronic device control method, device, electronic device, and storage medium to implement non-contact control of the electronic device. The following describes in detail the electronic device control method of the embodiment of the present application.

FIG. 6 shows a flowchart of an electronic device control method provided by an embodiment of the present application, and the electronic device control method is applied to an electronic device. Specifically, the electronic device control method includes:

Step S110: Send a first ultrasonic signal through the first ultrasonic transmitter, and send a second ultrasonic signal through the second ultrasonic transmitter.

The electronic device can control the ultrasonic transmitter to send signals and receive the signals through the ultrasonic receiver. Specifically, the first ultrasonic transmitter can be controlled to send ultrasonic signals, and the second ultrasonic transmitter can be controlled to send ultrasonic signals. Define the ultrasonic signal sent by the first ultrasonic transmitter as the first ultrasonic signal, and define the ultrasonic signal sent by the second ultrasonic transmitter as the second ultrasonic signal.

In the embodiment of the present application, the two ultrasonic transmitters may continuously transmit ultrasonic signals, or may transmit ultrasonic signals at high frequency intervals.

Optionally, for any ultrasonic transmitter, the specific frequency of the high frequency may be that the transmission time interval of two adjacent ultrasonic signals in time is greater than the time required for direct sound from transmission to reception, and less than the time required for direct sound from transmission to reception. Twice the time required to receive. Therefore, the direct sound and the reflected sound can be distinguished according to time, and because the time required for the direct sound from transmission to reception is very small and the ultrasonic signal transmission frequency is high, the ultrasonic signal reflected by the object can be detected in time.

Step S120: Determine the time when the first ultrasonic receiver receives the first target signal as the first time, and the first target signal is a signal that meets a first preset condition among the first ultrasonic signals reflected by the object.

When an object slides over the screen of the electronic device, the first ultrasonic signal sent by the first ultrasonic transmitter can be reflected and received by the first ultrasonic receiver. A signal satisfying the first preset condition among the first ultrasonic signals reflected by the object is used as the first target signal. Wherein, the signal satisfying the first preset condition may represent the signal reflected back when the object slides over the first ultrasonic receiver just above the screen. In addition, the specific method for the electronic device to identify the direct ultrasonic signal and the reflected ultrasonic signal can refer to the foregoing embodiment, and details are not described herein again. The object slides over the screen of the electronic device, that is, slides across the screen in a direction that is directly opposite to the screen of the electronic device.

The first time is the time when the first target signal is received.

Step S130: Determine the time when the second ultrasonic receiver receives the second target signal as the second time, and the second target signal is a signal that meets a second preset condition among the second ultrasonic signals reflected by the object.

When the object slides over the screen of the electronic device, the second ultrasonic signal sent by the second ultrasonic transmitter may be reflected and received by the second ultrasonic receiver. A signal that meets the second preset condition among the second ultrasonic signals reflected by the object is used as the second target signal. Wherein, the signal satisfying the second preset condition may represent the signal reflected back when the object slides over the second ultrasonic receiver just above the screen.

The time when the second target signal is received is regarded as the second time.

If it is set that the ultrasonic signal sent by the first ultrasonic transmitter cannot be reflected to the second ultrasonic receiver, and the ultrasonic signal sent by the second ultrasonic transmitter cannot be reflected to the first ultrasonic receiver, then the reflection received by the first ultrasonic receiver The sound is used as the received reflected first ultrasonic signal; the reflected sound received by the second ultrasonic receiver is used as the received reflected second ultrasonic signal. If the first ultrasonic receiver can receive the reflected second signal, if the second ultrasonic receiver can receive the reflected first ultrasonic signal, the first ultrasonic signal and the second ultrasonic signal can be set to different frequencies Ultrasonic signal. This difference in frequency makes the first ultrasonic signal and the second ultrasonic signal reflected even if the frequency of the reflected first ultrasonic signal is different from the second ultrasonic signal and the reflected second ultrasonic signal. The reflected second ultrasonic signal The frequency of the signal is different from the first ultrasonic signal and the reflected first ultrasonic signal, so that it can be determined whether the reflected ultrasonic signal is the first ultrasonic signal or the second ultrasonic signal according to the frequency of the received ultrasonic wave.

Step S140: Obtain a control instruction corresponding to the time difference between the first time and the second time.

Step S150: Perform a corresponding operation according to the control instruction.

The time difference between the first time and the second time reflects whether the object continuously slides over the screen of the electronic device, and can reflect the sliding speed and the sliding direction. Therefore, the corresponding instruction can be determined according to the time difference, so as to execute the corresponding operation according to the instruction, so as to realize the control of the electronic device.

In the embodiment of the present application, when the object slides over the screen of the electronic device, the ultrasonic waves sent by the first ultrasonic transmitter and the second ultrasonic transmitter are reflected. Therefore, the receiving time of the reflected ultrasonic wave can be determined, and the corresponding control instruction can be determined according to the time difference between the first time and the second time, and the operation can be performed according to the control instruction to realize the electronic device without contacting the electronic device. Control of equipment.

The present application also provides an embodiment, in which the embodiment includes a method for specifically determining and operating a control instruction according to the time difference. Referring to FIG. 7, the method provided in this embodiment includes:

Step S210: Send a first ultrasonic signal through the first ultrasonic transmitter, and send a second ultrasonic signal through the second ultrasonic transmitter.

Step S220: Determine the time when the first ultrasonic receiver receives the first target signal as the first time. The first target signal is a signal that meets a first preset condition among the first ultrasonic signals reflected by the object.

Step S230: Determine the time when the second ultrasonic receiver receives the second target signal as the second time, where the second target signal is a signal that meets a second preset condition among the second ultrasonic signals reflected by the object.

The first target signal that satisfies the first preset condition is determined from the reflected signals received by the first ultrasonic receiver, and the first target signal that satisfies the second preset condition is determined from the reflected signals received by the second ultrasonic receiver. Wherein, the reflected signal received by the first ultrasonic receiver is a signal of the first ultrasonic signal reflected by the object; the reflected signal received by the second ultrasonic receiver is a signal of the second ultrasonic signal reflected by the object.

In order to accurately detect the time when the object slides over the first end, the first target signal may be the signal that the first ultrasonic signal is reflected back when the object slides over the first ultrasonic receiver; the second target signal may be the object slide. The second ultrasonic signal is reflected back when passing over the second ultrasonic receiver. When the object slides over the first ultrasonic receiver, it means that the object passes the relative position of the first ultrasonic receiver when sliding on a plane roughly parallel to the screen; when the object slides over the second ultrasonic receiver, it means that the object is on a plane roughly parallel to the screen. When sliding, pass the relative position of the second ultrasonic receiver.

As shown in Figures 4 and 5, the object slides through the first end and the second end in sequence (as shown in Figure 4), or slides over the second end and the first end in sequence (as shown in Figure 5) When the object (such as the hand in Figure 4 and Figure 5) slides over the first end of the electronic device, it will be the closest to the first ultrasonic receiver when it passes over the first ultrasonic receiver; when the object slides over the second end, When sliding over the second ultrasonic receiver, it is closest to the second ultrasonic receiver.

Therefore, as an implementation manner, the first ultrasonic signal reflected by the object may be determined from the first ultrasonic signal received by the first ultrasonic receiver when the object is closest to the first ultrasonic receiver, As the first target signal. From the second ultrasonic signal reflected by the object received by the second ultrasonic receiver, the second ultrasonic signal reflected when the object is closest to the second ultrasonic receiver may be determined as the second target signal.

In this embodiment, the distance of the object corresponding to each reflection signal is calculated according to the received reflection signal, that is, the distance between the object and the ultrasonic receiver when each reflection signal is reflected by the object is calculated. The specific calculation method is not limited in the embodiment of the present application. The ultrasonic transmitter and the ultrasonic receiver provided at a certain end are used as an example for description.

For example, the method of calculating the distance of the object corresponding to the reflected signal may be a time difference method. Specifically, the ultrasonic transmitter and the ultrasonic receiver on the same end are set up close, the ultrasonic transmitter of the electronic device sends ultrasonic signals at intervals, and the ultrasonic receiver of the electronic device receives the reflected signal. According to the time when the reflected signal is sent The length of time between the received time and the propagation speed of the ultrasonic wave in the air can be calculated to obtain the physical distance corresponding to the reflected signal from the ultrasonic receiver.

For example, the distance of the object can also be calculated according to the phase difference method. The ultrasonic transmitter of the electronic device sends the ultrasonic signal, and the ultrasonic transmitter receives the reflected signal. By calculating the correlation index between the transmitted signal and the reflected signal, the phase difference caused by the ultrasonic wave reaching the ultrasonic receiver after reflection is determined, according to the phase difference To determine the relative distance between the object and the mobile terminal.

Therefore, in this embodiment, the distance of the object corresponding to each reflected signal of the first ultrasonic signal received by the first ultrasonic receiver can be calculated to obtain the first ultrasonic signal reflected back when the object is closest to the first ultrasonic receiver. As the first target signal. And the time when the first ultrasonic receiver receives the first target signal can be acquired as the first time.

In addition, in this embodiment, the distance of the object corresponding to each reflected signal of the second ultrasonic signal received by the second ultrasonic receiver can also be calculated, so as to obtain the second ultrasonic signal reflected back when the object is closest to the second ultrasonic receiver. , As the second target signal. And the time when the second ultrasonic receiver receives the second target signal can be acquired as the second time.

According to the Doppler effect shown in Figure 8, when an object (such as the observer in Figure 8) moves closer to the ultrasonic transmitter (the sound source in Figure 8), the object received by the ultrasonic receiver The frequency of the reflected ultrasonic wave becomes larger than the original frequency of the ultrasonic wave, and the higher the moving speed of the object, the higher the frequency of the reflected ultrasonic wave. When an object moves away from the ultrasonic transmitter, the frequency of the ultrasonic wave reflected by the object received by the ultrasonic receiver decreases relative to the original frequency of the ultrasonic wave, and the greater the object moving speed, the higher the frequency of the reflected ultrasonic wave. low.

Therefore, as an embodiment, as shown in FIGS. 4 and 5, the object slides past the first end and the second end sequentially, or when the object slides past the second end and the first end sequentially, During the process above an ultrasonic receiver, the object first approaches and then moves away from the first ultrasonic receiver, so that the frequency of the reflected signal received by the first ultrasonic receiver will first be greater than the transmit frequency and then less than the transmit frequency; the object slides over the second ultrasonic wave During the process above the receiver, the object first approaches and then moves away from the second ultrasonic receiver, so that the frequency of the reflected signal received by the second ultrasonic receiver is first greater than the transmit frequency and then less than the transmit frequency. The transmission frequency is the frequency of the transmitted ultrasonic wave.

Therefore, in this embodiment, the first ultrasonic transmitter transmits the ultrasonic signal of the first frequency, and the second ultrasonic transmitter transmits the ultrasonic signal of the second frequency. The first ultrasonic signal with a frequency lower than the first frequency can be determined from the first ultrasonic signal received by the first ultrasonic receiver and reflected back by the object as the first target signal; received from the second ultrasonic receiver Among the received second ultrasonic signals reflected back by the object, the determined second ultrasonic signal with a first frequency lower than the second frequency is used as the second target signal. Wherein, the first frequency and the second frequency may be the same or different. If the first frequency is different from the second frequency, the first frequency can be set to a frequency that cannot be reflected by the user's operation of the ultrasonic wave of the first frequency, and the second frequency can also be set to be that the ultrasonic wave of the second frequency cannot be operated by the user. The frequency of reflections.

That is, when the object starts to move away from the first ultrasonic receiver, the frequency of the ultrasonic signal reflected by the object starts to be lower than the first frequency. Therefore, when a first ultrasonic signal with a first frequency lower than the first frequency is received, it indicates that the object has just passed the first ultrasonic receiver at this time, and the ultrasonic signal can be used as the first target signal. In addition, the time when the first target signal is received by the first ultrasonic receiver can be acquired as the first time.

As shown in FIGS. 4 and 5, when the object starts to move away from the second ultrasonic receiver, the frequency of the second ultrasonic signal reflected by the object starts to be lower than the second frequency. Therefore, when a second ultrasonic signal with a first frequency lower than the second frequency is received, it indicates that the object just slipped through the second ultrasonic receiver at this time, and the ultrasonic signal can be used as the second target signal. In addition, the time when the second target signal is received by the second ultrasonic receiver can be acquired as the second time.

As another embodiment, as shown in FIGS. 4 and 5, when the object slides through the first end and the second end sequentially, or slides through the second end and the first end sequentially, it can be understood that when When the object slides past the first end and approaches the first end at the maximum speed, when it is closer to the first end, that is, closer to the first ultrasonic receiver, the frequency of the reflected signal received by the first ultrasonic receiver is the highest; When passing the second end, when approaching the second end at the maximum speed, the distance to the second end is closer, that is, the second ultrasonic receiver is closer, and the reflected signal received by the second ultrasonic receiver has the highest frequency.

Therefore, in this embodiment, the first ultrasonic signal with the highest frequency can be determined from the first ultrasonic signal received by the first ultrasonic receiver and reflected back by the object as the first target signal. And obtain the receiving time of the first target signal as the first time.

That is, the electronic device determines the reflection signal with the highest frequency among the reflection signals of the first ultrasonic signal received by the first ultrasonic receiver as the first target signal.

The second ultrasonic signal with the highest frequency can be determined from the second ultrasonic signal reflected by the object received by the second ultrasonic receiver as the second target signal. Acquire the receiving time of the second target signal as the second time.

That is, the electronic device determines the reflection signal with the highest frequency among the reflection signals of the second ultrasonic signal received by the second ultrasonic receiver as the second target signal.

Step S240: Determine the numerical interval of the difference value of the first time minus the second time. If the difference value belongs to a positive value interval, step S250 is executed; if the difference value belongs to a negative value interval, step S260 is executed.

Step S250: Perform a page turning operation in the first direction on the currently displayed content.

Step S260: Perform a page turning operation in the second direction on the currently displayed content. The second direction is opposite to the first direction.

The control instruction corresponding to the time difference between the first time and the second time can be acquired, and corresponding operations can be performed according to the control instruction.

Because when the object as shown in Figure 4 (the hand in the figure) slides from the first end to the second end, the first time is obtained first, and then the second time is obtained. The difference between the first time and the second time The value is a negative value; when the object shown in Figure 5 (the hand in the figure) slides from the second end to the first end, the second time is first obtained, and then the first time is obtained. The first time and the first time The difference between the two times is a positive value. Therefore, the sliding direction of the object can be determined according to the numerical interval to which the difference belongs to determine the control command.

As an embodiment, a numerical interval is pre-stored, and the stored numerical interval includes a positive interval and a negative interval, the value of the positive interval is greater than 0, and the value of the negative interval is less than 0. Among them, a large number of normal gestures can be simulated in advance from the first end to the second end, and each time difference T=T1-T2 can be statistically recorded, and a negative interval can be formed according to the occurrence probability of different time difference values; From the end to the first end of the sliding, each time difference T=T1-T2 is statistically recorded, and a positive interval is formed according to the occurrence probability of different time difference values. T1 represents the first time, T2 represents the second time, and T represents the difference between the first time and the second time, that is, the time difference between the first time and the second time. As shown in Figure 9, t1 represents a negative interval, t2 represents a positive interval, t0 represents a near-zero interval, and the ordinate represents the probability of each corresponding time difference occurring within the statistical times.

After obtaining the difference between the first time and the second time, if the difference is less than 0, it can be determined whether the difference is in the negative interval. If it is not in the negative interval, it means that the sliding process of the object corresponding to the first time and the second time may be invalid sliding, and no corresponding control will be performed; if the difference is in the negative interval, it means the object is sliding from the first end to the second The end, as shown in Figure 4, is effectively sliding. It can be determined that the instruction generated by the user's current sliding operation is a page turning instruction in the second direction, and the page turning operation in the second direction is performed on the currently displayed content.

In this embodiment, if the difference between the first time and the second time is greater than 0, it can be determined whether the difference is within a positive interval. If it is not in the positive interval, it means that the sliding process of the object corresponding to the first time and the second time may be invalid sliding, and no corresponding control will be performed; if the difference is in the positive interval, it means that the object slides from the second end to the first The end, as shown in Figure 5, is effectively sliding. It can be determined that the instruction generated by the user's current sliding operation is a page turning instruction in the first direction, and the page turning operation in the first direction is performed on the currently displayed content.

The first direction and the second direction are directions opposite to each other. For example, the first direction may be the direction from the second end of the electronic device to the first end, and the second direction may be the first end of the electronic device The direction to the second end.

In addition, performing a page turning operation in the first direction on the currently displayed content and performing a page turning operation in the second direction on the currently displayed content may be determined according to the function of the application corresponding to the currently displayed content. For example, if the currently displayed page is the reading page of the reading software, the page turning operation in the first direction can be to turn the reading content in the first direction, or to the previous page; the page turning operation in the second direction can be Read the content to turn the page in the second direction, or turn to the next page, etc. For another example, if the short video playback interface of the short video software is currently displayed, the page turning operation in the first direction can be to switch the video in the first direction, or switch to the previous video; the page turning operation in the second direction It can switch the video in the second direction, or switch to the next video.

As another embodiment, on the basis of the previous embodiment, the numerical interval may also include a near-zero interval t0 as shown in FIG. 9, which is a preset value smaller than zero to a preset value larger than zero. The interval formed by the data in between, the positive interval is an interval formed by numerical values outside the near zero interval and greater than zero, and the negative interval is an interval formed by numerical values outside the near zero interval and smaller than zero.

Wherein, the near-zero interval indicates that the time when the first ultrasonic receiver receives the first target signal and the second ultrasonic receiver receives the second target signal are close, and the time difference is about zero. If an object (such as the user's palm) is pressed toward the screen from a position that is roughly parallel to the screen and a certain distance from the screen, that is, keep the palm and the screen basically parallel to the screen, it can be detected that the difference between the first time and the second time is close Zero interval.

In this embodiment, it can also be determined whether the difference between the first time and the second time belongs to a near-zero interval. If it belongs to the near-zero interval, you can determine the control command corresponding to the near-zero interval and perform the corresponding operation. For example, if the difference belongs to the near zero interval, the currently displayed video is changed from playing to pause or from pause to playing. Of course, if the difference falls within the near-zero interval, it may also be other control instructions, such as exiting the current video, exiting the current application, exiting the current interface and returning to the previous interface.

In the embodiment of the present application, the control commands corresponding to different numerical ranges are not limited, and may be other. For example, an instruction table is stored corresponding to different application programs, and the instruction table represents the control instructions of the application program corresponding to each numerical interval. You can determine the numerical range of the difference between the first time and the second time. After determining the numerical range of the difference between the first time and the second time, look up the numerical range of the difference in the instruction table corresponding to the application running in the foreground The corresponding control instruction executes the corresponding operation according to the found control instruction.

In the embodiment of the present application, when the user is performing the sliding operation as shown in FIG. 4 and FIG. 5, the first time when the object passes the first end and the second time when the object passes the second end can be acquired. Determine whether it is a valid sliding operation according to the time difference between the first time and the second time, and the sliding direction in the case of a valid sliding operation, determine the corresponding control command according to the sliding direction, and execute the operation corresponding to the control command to achieve The control of electronic devices without touching them.

The embodiment of the present application also provides an electronic device control apparatus 300. The device 300 is applied to electronic equipment, which includes a first ultrasonic transmitter and a first ultrasonic receiver provided at the first end of the electronic equipment, and a second ultrasonic transmitter provided at the second end of the electronic equipment And the second ultrasonic receiver, the first end and the second end may be opposite ends.

Referring to FIG. 10, the device 300 includes an ultrasonic sending module 310, a first time determining module 320, a second time determining module 330, an instruction obtaining module 340, and a control module 350.

Wherein, the ultrasonic transmitting module 310 is configured to transmit a first ultrasonic signal through the first ultrasonic transmitter, and transmit a second ultrasonic signal through the second ultrasonic transmitter. The first time determining module 320 is configured to determine the time when the first ultrasonic receiver receives the first target signal as the first time, and the first target signal is the first ultrasonic signal reflected by the object that satisfies the first Signals with preset conditions. The second time determining module 330 is configured to determine the time when the second ultrasonic receiver receives the second target signal as the second time, and the second target signal is the second ultrasonic signal reflected by the object that satisfies the second Signals with preset conditions. The instruction acquisition module 340 is configured to acquire a control instruction corresponding to the time difference between the first time and the second time. The control module 350 is configured to perform corresponding operations according to the control instructions.

Optionally, the instruction acquisition module 340 and the control module 350 may be integrated into one module, which is used to determine the value interval of the difference value of the first time minus the second time; if the difference value belongs to the positive value interval, Perform a page turning operation in a first direction for the currently displayed content; if the difference is in a negative interval, perform a page turning operation in a second direction for the currently displayed content, the second direction being opposite to the first direction.

Optionally, the first direction may be a direction from the second end of the electronic device to the first end, and the second direction may be a direction from the first end of the electronic device to the The direction of the second end.

Optionally, the numerical interval may also include a near-zero interval, the near-zero interval being an interval formed by data from a preset value smaller than zero to a preset value greater than zero, and the positive value interval is near zero An interval formed by a numeric value outside the interval and greater than zero, and the negative interval is an interval formed by a numeric value outside the near-zero interval and smaller than zero. The instruction acquisition module 340 and the control module 350 can be integrated into one module, which is used to switch the currently displayed video from playing to pause or from pause to playing if the difference is within the near-zero interval.

Optionally, the first time determining module 320 may be configured to determine the ultrasonic signal with the highest frequency among the first ultrasonic signals reflected by the object received by the first ultrasonic receiver, as the first target signal; The receiving time of the target signal is regarded as the first time.

The second time determining module 330 may be used to determine the ultrasonic signal with the highest frequency from the second ultrasonic signal reflected by the object received by the second ultrasonic receiver, as the second target signal; to obtain the reception of the second target signal Time as the second time.

Optionally, the first frequency ultrasonic signal sent by the first ultrasonic transmitter, and the second frequency ultrasonic signal sent by the second ultrasonic transmitter. The first time determining module 320 may be used to determine the first ultrasonic signal with a frequency lower than the first frequency from the first ultrasonic signal received by the first ultrasonic receiver and reflected back by the object as the first target signal ; Acquire the receiving time of the first target signal as the first time. The second time determining module 330 may be used to determine the first ultrasonic signal with a frequency lower than the second frequency from the second ultrasonic signal received by the second ultrasonic receiver and reflected back by the object as the second target signal ; Acquire the receiving time of the second target signal as the second time.

Optionally, the first time determining module 320 may be used to determine the ultrasonic wave reflected when the object is closest to the first ultrasonic receiver from the first ultrasonic signal received by the first ultrasonic receiver and reflected back by the object The signal is used as the first target signal; the receiving time of the first target signal is acquired as the first time. The second time determining module 330 may be used to determine the ultrasonic signal reflected when the object is closest to the second ultrasonic receiver from the second ultrasonic signal received by the second ultrasonic receiver and reflected back by the object, as the second ultrasonic signal Two target signals; acquiring the receiving time of the second target signal as the second time.

In the embodiment of the present application, when the electronic device is used, the electronic device can be operated in an empty space. For example, when the mobile phone is playing a video, the mobile phone can be operated in an empty space to switch the video playback top and bottom by sliding. Compared with the traditional method, it increases the sense of technology and interest. In addition, it can solve the user's inconvenience to operate when touching the screen, for example, it is inconvenient to touch the screen (when eating crayfish) with dirty things on the hand, which can assist in controlling the mobile phone.

Those skilled in the art can clearly understand that, for the convenience and conciseness of the description, the specific working process of the device and module described above can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, the coupling between the modules may be electrical, mechanical or other forms of coupling.

In addition, each functional module in each embodiment of the present application may be integrated into one processing module, or each module may exist alone physically, or two or more modules may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware or software functional modules. Various implementation modes in the embodiments of the present application may be implemented by corresponding modules, and the corresponding descriptions are not repeated in the embodiments of the present application.

Please refer to FIG. 11, which shows a structural block diagram of an electronic device 700 according to an embodiment of the present application. The electronic device 700 may be an electronic device such as a mobile phone, a tablet computer, or an e-book. The electronic device 700 includes a memory 710, a processor 720, a first ultrasonic transmitter 730, a first ultrasonic receiver 740, a second ultrasonic transmitter 750, and a second ultrasonic receiver 760. The memory 710, the first ultrasonic transmitter 730, the first ultrasonic receiver 740, the second ultrasonic transmitter 750, and the second ultrasonic receiver 760 are coupled to the processor 720. The first ultrasonic transmitter 730 and the second ultrasonic transmitter 750 are used for transmitting ultrasonic signals, the first ultrasonic receiver 740 and the second ultrasonic receiver 760 are used for receiving ultrasonic signals, and the memory 710 stores instructions. When the instructions are executed by the processor 720, the processor executes the method described in one or more embodiments above.

The processor 720 may include one or more processing cores. The processor 720 uses various interfaces and lines to connect various parts of the entire electronic device 700, and executes by running or executing instructions, programs, code sets, or instruction sets stored in the memory 710, and calling data stored in the memory 710. Various functions and processing data of the electronic device 700. Optionally, the processor 720 may adopt at least one of digital signal processing (Digital Signal Processing, DSP), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), and Programmable Logic Array (Programmable Logic Array, PLA). A kind of hardware form to realize. The processor 720 may be integrated with one or a combination of a central processing unit (CPU), a graphics processing unit (GPU), a modem, and the like. Among them, the CPU mainly processes the operating system, user interface, and application programs; the GPU is used for rendering and drawing of display content; the modem is used for processing wireless communication. It can be understood that the above-mentioned modem may not be integrated into the processor 720, but may be implemented by a communication chip alone.

The memory 710 may include random access memory (RAM) or read-only memory (Read-Only Memory). The memory 710 may be used to store instructions, programs, codes, code sets or instruction sets, such as instructions or code sets used to implement the electronic device control method provided in the embodiments of the present application. The memory 710 may include a storage program area and a storage data area, where the storage program area may store instructions for implementing an operating system, instructions for implementing at least one function, instructions for implementing each of the foregoing method embodiments, and the like. The storage data area can also be data created by the electronic device in use (such as phone book, audio and video data, chat record data), etc.

Please refer to FIG. 12, which shows a structural block diagram of a computer-readable storage medium provided by an embodiment of the present application. The computer-readable storage medium 800 stores program code, and the program code can be invoked by a processor to execute the method described in the foregoing method embodiment.

The computer-readable storage medium 800 may be an electronic memory such as flash memory, EEPROM (Electrically Erasable Programmable Read Only Memory), EPROM, hard disk, or ROM. Optionally, the computer-readable storage medium 800 includes a non-transitory computer-readable storage medium. The computer-readable storage medium 800 has a storage space for the program code 810 for executing any method steps in the above-mentioned methods. These program codes can be read out from or written into one or more computer program products. The program code 810 may be compressed in a suitable form, for example.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the application, not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions recorded in the foregoing embodiments are modified, or some of the technical features are equivalently replaced; these modifications or replacements do not drive the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

An electronic device control method, characterized in that it is applied to an electronic device, and the electronic device includes a first ultrasonic transmitter and a first ultrasonic receiver provided on a first end of the electronic device, and a first ultrasonic receiver provided on the electronic device The second ultrasonic transmitter and the second ultrasonic receiver at the second end, the method includes:

Sending a first ultrasound signal through the first ultrasound transmitter, and sending a second ultrasound signal through the second ultrasound transmitter;

Determining a time when the first ultrasonic receiver receives a first target signal as the first time, where the first target signal is a signal that meets a first preset condition among the first ultrasonic signals reflected by the object;

Determining a time when the second ultrasonic receiver receives a second target signal as a second time, where the second target signal is a signal that meets a second preset condition among the second ultrasonic signals reflected by the object;

Acquiring a control instruction corresponding to the time difference between the first time and the second time;

Perform corresponding operations according to the control instructions.
The method according to claim 1, wherein an instruction table is stored corresponding to different application programs, the instruction table represents control instructions of the application program corresponding to each numerical interval, and the first time and the first time are acquired. The control instruction corresponding to the time difference between the two times, executing corresponding operations according to the control instruction, includes:

Determine the numerical interval of the difference between the first time and the second time;

Look up the control instruction corresponding to the numerical interval of the difference in the instruction table corresponding to the application program running in the foreground;

Perform corresponding operations according to the found control instructions.
The method according to claim 1 or 2, wherein the obtaining a control instruction corresponding to the time difference between the first time and the second time, and executing a corresponding operation according to the control instruction, comprises:

Judging the numerical interval of the difference value of the first time minus the second time;

If the difference is within a positive interval, perform a page turning operation in the first direction on the currently displayed content;

If the difference value belongs to a negative value interval, a page turning operation in a second direction is performed on the currently displayed content, and the second direction is opposite to the first direction.
The method of claim 3, wherein if the currently displayed page is a reading page of the reading software, the page turning operation in the first direction is to turn the reading content in the first direction, and the second direction The page turning operation is to turn pages of the reading content in the second direction.
The method of claim 3, wherein if the short video playback interface of the short video software is currently displayed, the page turning operation in the first direction is to switch the video in the first direction, and the second direction The page turning operation is to switch the video in the second direction.
The method according to any one of claims 3 to 5, wherein the first end is opposite to the second end, and the first direction is from the second end of the electronic device to the The direction of the first end, and the second direction is a direction from the first end to the second end of the electronic device.
The method according to any one of claims 3 to 6, wherein the numerical interval further comprises a near-zero interval, and the near-zero interval is between a preset value smaller than zero and a preset value greater than zero An interval formed by data, the positive interval is an interval formed by a value outside the near-zero interval and greater than zero, and the negative interval is an interval formed by a numeric value outside the near-zero interval and smaller than zero, and the method further includes :

If the difference belongs to the near-zero interval, the currently displayed video is changed from playing to pause or from pause to playing.
The method according to any one of claims 3 to 6, wherein the numerical interval further comprises a near-zero interval, and the near-zero interval is between a preset value smaller than zero and a preset value greater than zero An interval formed by data, the positive interval is an interval formed by a value outside the near-zero interval and greater than zero, and the negative interval is an interval formed by a numeric value outside the near-zero interval and smaller than zero, and the method further includes :

If the difference falls within the near-zero interval, exit the current application; or

If the difference belongs to the near-zero interval, exit the current interface and return to the previous interface.
The method according to any one of claims 1 to 8, wherein the signal that satisfies the first preset condition represents the signal reflected back when the object slides over the first ultrasonic receiver just above the screen, and satisfies the second preset condition. The conditional signal represents the signal reflected back when the object slides over the second ultrasonic receiver just above the screen.
The method according to any one of claims 1 to 9, wherein the determining the time when the first ultrasonic receiver receives the first target signal as the first time comprises:

Determine the highest frequency ultrasonic signal from the first ultrasonic signals reflected by the object received by the first ultrasonic receiver as the first target signal;

Acquiring the receiving time of the first target signal as the first time;

The determining the time when the second ultrasonic receiver receives the second target signal as the second time includes:

Determine the highest frequency ultrasonic signal from the second ultrasonic signals reflected by the object received from the second ultrasonic receiver as the second target signal;

Acquire the receiving time of the second target signal as the second time.
The method according to any one of claims 1 to 9, wherein the first frequency ultrasonic signal sent by the first ultrasonic transmitter, and the second frequency ultrasonic signal sent by the second ultrasonic transmitter, The determining the time when the first ultrasonic receiver receives the first target signal as the first time includes:

Among the ultrasonic signals received by the first ultrasonic receiver and reflected back by the object, a first determined first ultrasonic signal with a frequency lower than the first frequency is used as the first target signal;

Acquiring the receiving time of the first target signal as the first time;

The determining the time when the second ultrasonic receiver receives the second target signal as the second time includes:

Among the second ultrasonic signals received from the second ultrasonic receiver and reflected by the object, the determined first ultrasonic signal with a frequency lower than the second frequency is used as the second target signal;

Acquire the receiving time of the second target signal as the second time.
The method according to any one of claims 1 to 9, wherein the determining the time when the first ultrasonic receiver receives the first target signal as the first time comprises:

From the first ultrasonic signal reflected by the object received by the first ultrasonic receiver, determining the first ultrasonic signal reflected when the object is closest to the first ultrasonic receiver as the first target signal;

Acquiring the receiving time of the first target signal as the first time;

The determining the time when the second ultrasonic receiver receives the second target signal as the second time includes:

Determining the second ultrasonic signal reflected by the object when the object is closest to the second ultrasonic receiver from the second ultrasonic signal received by the second ultrasonic receiver as the second target signal;

Acquire the receiving time of the second target signal as the second time.
The method according to claim 12, characterized in that the method further comprises: calculating the distance of the object corresponding to each reflected signal of the first ultrasonic signal received by the first ultrasonic receiver; and

Calculate the distance of the object corresponding to each reflected signal of the second ultrasonic signal received by the second ultrasonic receiver.
The method according to any one of claims 1 to 13, wherein the first ultrasonic signal and the second ultrasonic signal are ultrasonic signals of different frequencies, the reflected first ultrasonic signal and the second ultrasonic signal, and the reflected second ultrasonic signal The frequency of the ultrasonic signal is different, and the frequency of the reflected second ultrasonic signal is different from the frequency of the first ultrasonic signal and the reflected first ultrasonic signal.
The method according to any one of claims 1 to 14, characterized in that, for any ultrasonic transmitter, the frequency at which the ultrasonic signal is sent is such that the transmission time interval of two adjacent ultrasonic signals in time is greater than that of the direct sound slave. The time required to receive is less than twice the time required for the direct sound to be transmitted from transmission to reception, and the direct sound is an ultrasonic signal sent from an ultrasonic transmitter that is directly received by an ultrasonic receiver.
The method according to any one of claims 1 to 15, wherein the electronic device distinguishes the direct sound and the reflected sound from the ultrasonic signal received by the ultrasonic receiver, wherein the direct sound is transmitted directly from the ultrasonic transmitter. The ultrasonic signal received by the ultrasonic receiver, and the reflected sound is the ultrasonic signal received by the ultrasonic receiver and reflected by the object.
The method according to claim 16, wherein the method for the electronic device to distinguish between the direct sound and the reflected sound from the ultrasonic signal received by the ultrasonic receiver includes one or more of the following:

Determine the direct sound and reflected sound according to time;

Determine direct sound and reflected sound based on frequency; and

Determine the direct sound and reflected sound according to the phase.
An electronic device control device, characterized in that it is applied to an electronic device, the electronic device includes a first ultrasonic transmitter and a first ultrasonic receiver provided on the first end of the electronic device, and a first ultrasonic receiver provided on the electronic device The second ultrasonic transmitter and the second ultrasonic receiver at the second end, the device includes:

An ultrasonic transmitting module, configured to transmit a first ultrasonic signal through the first ultrasonic transmitter, and transmit a second ultrasonic signal through the second ultrasonic transmitter;

The first time determining module is configured to determine the time when the first ultrasonic receiver receives the first target signal as the first time, and the first target signal is the first ultrasonic signal reflected by the object that satisfies the first preset Conditional signal;

The second time determining module is configured to determine the time when the second ultrasonic receiver receives the second target signal as the second time, and the second target signal is the second ultrasonic signal reflected by the object that satisfies the second preset Conditional signal;

An instruction acquisition module, configured to acquire a control instruction corresponding to the time difference between the first time and the second time;

The control module is used to perform corresponding operations according to the control instructions.
An electronic device, which is characterized by comprising a first ultrasonic transmitter and a first ultrasonic receiver provided at the first end of the electronic device, and a second ultrasonic transmitter and a second ultrasonic receiver provided at the second end of the electronic device A receiver, a memory, and a processor, the first end is opposite to the second end,

The memory, the first ultrasonic transmitter, the first ultrasonic receiver, the second ultrasonic transmitter, and the second ultrasonic receiver are coupled to the processor, and the first ultrasonic transmitter and the second ultrasonic transmitter are used for transmitting Ultrasonic signals, the first ultrasonic receiver and the second ultrasonic receiver are used to receive ultrasonic signals, the memory stores instructions, and when the instructions are executed by the processor, the processor executes as claimed in claims 1-17 Any one of the methods.
A computer readable storage medium, wherein the computer readable storage medium stores program code, and the program code can be called by a processor to execute the method according to any one of claims 1-17 .