CN109639185B

CN109639185B - Motor control method and terminal equipment

Info

Publication number: CN109639185B
Application number: CN201811482729.1A
Authority: CN
Inventors: 陈伟得
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-12-05
Filing date: 2018-12-05
Publication date: 2020-08-07
Anticipated expiration: 2038-12-05
Also published as: CN109639185A

Abstract

The embodiment of the invention discloses a motor control method and terminal equipment, relates to the technical field of communication, and aims to solve the problem that the motor drives a camera assembly to pop up and retract for a long time due to the fact that the rotating speed of the motor is low under the condition that the thrust of the motor is high. The method is applied to a terminal device, the terminal device internally comprises a camera assembly and a motor connected with the camera assembly, the motor is used for driving the camera assembly to move, and the method comprises the following steps: under the condition that the motor rotates at a first rotating speed, acquiring the moving speed of the camera assembly; and controlling the motor to rotate according to a second rotating speed under the condition that the moving speed is greater than or equal to the target speed, wherein the second rotating speed is greater than the first rotating speed. The method can be applied to scenes that the terminal equipment turns on or turns off the camera.

Description

Motor control method and terminal equipment

Technical Field

The embodiment of the invention relates to the technical field of communication, in particular to a motor control method and terminal equipment.

Background

With the development of communication technology, the application of the full-screen terminal equipment is more and more extensive.

At present, in order to realize the self-timer function of the comprehensive screen terminal equipment, a camera assembly can be arranged in the comprehensive screen terminal equipment, and a motor for driving the camera assembly to pop up and retract is arranged. Specifically, when a user triggers the terminal equipment to start the camera, the motor can drive the camera component to pop up from the inside of the full-screen terminal equipment; when a user triggers the terminal equipment to close the camera, the motor can drive the camera assembly to retract from the outside of the full-screen terminal equipment.

However, in order to overcome the friction force existing in the above-mentioned camera head assembly, the thrust force of the motor (which is used to overcome the friction force) can be generally set to a large fixed value, and since the thrust force of the motor is inversely related to the rotation speed of the motor, the rotation speed of the motor is small in the case that the thrust force of the motor is large, thereby causing a long time for ejecting and retracting the camera head assembly driven by the motor.

Disclosure of Invention

The embodiment of the invention provides a motor control method and terminal equipment, and aims to solve the problem that the motor drives a camera assembly to pop up and retract for a long time due to the fact that the rotating speed of the motor is low under the condition that the thrust of the motor is high.

In order to solve the above technical problem, the embodiment of the present invention is implemented as follows:

in a first aspect, an embodiment of the present invention provides a motor control method. The method is applied to the terminal equipment, the terminal equipment internally comprises a camera assembly and a motor connected with the camera assembly, and the motor is used for driving the camera assembly to move. The method comprises the following steps: under the condition that the motor rotates at a first rotating speed, acquiring the moving speed of the camera assembly; and controlling the motor to rotate according to a second rotating speed under the condition that the moving speed is greater than or equal to the target speed, wherein the second rotating speed is greater than the first rotating speed.

In a second aspect, an embodiment of the present invention provides a terminal device. The terminal equipment internally comprises a camera assembly and a motor connected with the camera assembly, wherein the motor is used for driving the camera assembly to move; the terminal equipment comprises an acquisition module and a control module. The acquisition module is used for acquiring the moving speed of the camera assembly under the condition that the motor rotates at the first rotating speed; and the control module is used for controlling the motor to rotate according to a second rotating speed under the condition that the moving speed acquired by the acquisition module is greater than or equal to the target speed, wherein the second rotating speed is greater than the first rotating speed.

In a third aspect, an embodiment of the present invention provides a terminal device, which includes a processor, a memory, and a computer program stored on the memory and executable on the processor, where the computer program, when executed by the processor, implements the steps of the motor control method provided in the first aspect.

In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the motor control method provided in the first aspect.

In the embodiment of the invention, the terminal equipment can acquire the moving speed of the camera component under the condition that the motor rotates at the first rotating speed; and controlling the motor to rotate at a second rotational speed (the second rotational speed being greater than the first rotational speed) when the moving speed is greater than or equal to the target speed. Through the scheme, under the condition that the moving speed of the camera assembly is greater than or equal to the linear speed corresponding to the first rotating speed of the motor, the camera assembly has dynamic friction force, the dynamic friction force is smaller than static friction force, so the thrust of the motor can be reduced, and the thrust of the motor is negatively related to the rotating speed of the motor, so the rotating speed of the motor can be increased under the condition that the thrust of the motor is reduced, so that the time for ejecting the motor-driven camera assembly from the inside of the terminal equipment can be shortened, or the time for retracting the motor-driven camera assembly from the outside of the terminal equipment is shortened.

Drawings

Fig. 1 is a schematic structural diagram of an android operating system according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a motor control method according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of the rotational speed and thrust of a motor provided by an embodiment of the present invention;

fig. 4 is a second schematic diagram of a motor control method according to an embodiment of the present invention;

fig. 5 is a third schematic diagram illustrating a motor control method according to an embodiment of the present invention;

fig. 6 is a fourth schematic diagram illustrating a motor control method according to an embodiment of the present invention;

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

fig. 8 is a second schematic structural diagram of a terminal device according to an embodiment of the present invention;

fig. 9 is a third schematic structural diagram of a terminal device according to an embodiment of the present invention;

fig. 10 is a hardware schematic diagram of a terminal device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. 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 invention.

The term "and/or" herein is an association relationship describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone.

The terms "first" and "second," and the like, in the description and in the claims of the present invention are used for distinguishing between different objects and not for describing a particular order of the objects. For example, the first and second rotational speeds, etc. are for distinguishing between different rotational speeds, and are not for describing a particular order of rotational speeds.

In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

In the description of the embodiments of the present invention, unless otherwise specified, "a plurality" means two or more, for example, a plurality of elements means two or more elements, and the like.

The embodiment of the invention provides a motor control method and terminal equipment, wherein the terminal equipment can acquire the moving speed of a camera component under the condition that a motor rotates at a first rotating speed; and controlling the motor to rotate at a second rotational speed (the second rotational speed being greater than the first rotational speed) when the moving speed is greater than or equal to the target speed. Through the scheme, under the condition that the moving speed of the camera assembly is greater than or equal to the linear speed corresponding to the first rotating speed of the motor, the camera assembly has dynamic friction force, the dynamic friction force is smaller than static friction force, so the thrust of the motor can be reduced, and the thrust of the motor is negatively related to the rotating speed of the motor, so the rotating speed of the motor can be increased under the condition that the thrust of the motor is reduced, so that the time for ejecting the motor-driven camera assembly from the inside of the terminal equipment can be shortened, or the time for retracting the motor-driven camera assembly from the outside of the terminal equipment is shortened.

The terminal device in the embodiment of the present invention may be a terminal device having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, and embodiments of the present invention are not limited in particular.

An android operating system is taken as an example, and a software environment applied to the motor control method provided by the embodiment of the invention is introduced.

Fig. 1 is a schematic diagram of an architecture of an android operating system according to an embodiment of the present invention, in fig. 1, the architecture of the android operating system includes 4 layers, which are an application layer, an application framework layer, a system runtime layer, and a kernel layer (specifically, L inux kernel layer).

The application program layer comprises various application programs (including system application programs and third-party application programs) in an android operating system.

The application framework layer is a framework of the application, and a developer can develop some applications based on the application framework layer under the condition of complying with the development principle of the framework of the application.

The system runtime layer includes libraries (also called system libraries) and android operating system runtime environments. The library mainly provides various resources required by the android operating system. The android operating system running environment is used for providing a software environment for the android operating system.

The kernel layer is an operating system layer of the android operating system and belongs to the lowest layer of a software layer of the android operating system, and the kernel layer provides core system services and hardware-related drivers for the android operating system based on L inux kernels.

Taking an android operating system as an example, in the embodiment of the present invention, a developer may develop a software program for implementing the motor control method provided in the embodiment of the present invention based on the system architecture of the android operating system shown in fig. 1, so that the motor control method may operate based on the android operating system shown in fig. 1. Namely, the processor or the terminal device can implement the motor control method provided by the embodiment of the invention by running the software program in the android operating system.

The terminal device in the embodiment of the invention can be a mobile terminal device and can also be a non-mobile terminal device. For example, the mobile terminal device may be a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and the non-mobile terminal device may be a Personal Computer (PC), a Television (TV), a teller machine or a self-service machine, and the like, and the embodiment of the present invention is not particularly limited.

The main execution body of the motor control method provided in the embodiment of the present invention may be the terminal device, or may also be a functional module and/or a functional entity capable of implementing the motor control method in the terminal device, which may be determined specifically according to actual use requirements, and the embodiment of the present invention is not limited. The following takes a terminal device as an example to exemplarily describe the motor control method provided by the embodiment of the present invention.

As shown in fig. 2, an embodiment of the present invention provides a motor control method. The method can be applied to a terminal device, wherein the terminal device internally comprises a camera assembly and a motor connected with the camera assembly, and the motor can be used for driving the camera assembly to move. The method may include steps 101 and 102 described below.

Step 101, under the condition that the motor rotates at a first rotating speed, the terminal equipment acquires the moving speed of the camera assembly.

In the embodiment of the invention, the control of the rotation of the motor by the terminal equipment can be divided into a first stage and a second stage:

in the first stage, the camera assembly and the terminal equipment are in a relatively static state (the camera assembly can be in an ejection state or a retraction state), and static friction force exists in the camera assembly. In order to overcome the static friction force of the camera assembly to push the camera assembly to move, the thrust of the motor is large, so that the camera assembly can do accelerated motion under the action of the thrust of the motor. However, since the thrust of the motor and the rotation speed of the motor are inversely related, in the case that the thrust of the motor is large, the rotation speed of the motor is small, and for example, the terminal device may control the motor to rotate at the first rotation speed.

In the second stage, the camera assembly moves under the driving of the motor, and the camera assembly has dynamic friction force. According to the mechanics principle, since the kinetic friction force is smaller than the static friction force, the motor thrust for overcoming the static friction force of the camera assembly can be reduced. In the case where the thrust of the motor is reduced, the rotation speed of the motor may be increased, so that the time for the motor to drive the camera assembly to eject from the inside of the terminal device or retract from the outside of the terminal device may be shortened, for example, the terminal device may control the motor to rotate at a second rotation speed greater than the first rotation speed.

Illustratively, as shown in fig. 3, in order to more clearly illustrate the relationship between the rotation speed of the motor and the thrust of the motor, a broken line segment L, a broken line segment L, and a broken line segment L are schematic diagrams of the rotation speeds of the three motors and the thrust of the motors provided by the embodiment of the present invention.

Optionally, in the embodiment of the present invention, a motion sensor (for example, an acceleration sensor) may be disposed in the camera assembly, and the terminal device may obtain the moving speed of the camera assembly through the motion sensor. Specifically, reference may be made to step 101A and step 101B in the following embodiments, which are not described herein in detail.

Optionally, in the embodiment of the present invention, the camera assembly may include a camera and a lifting structure. Wherein, the camera can be used for taking pictures or videos; the lifting structure is used for bearing the camera and driving the camera to move under the driving of the motor.

For example, when the user triggers the terminal device to turn on the camera or turn off the camera, the motor may drive the lifting structure to pop up from the inside of the terminal device or retract from the outside of the terminal device, so that the camera may move along with the movement of the lifting structure, i.e., the camera and the lifting structure remain relatively stationary.

Alternatively, the motor in the embodiment of the present invention may be a stepping motor.

Optionally, in an embodiment of the present invention, the motor and the camera head assembly may be connected through a worm and a worm. In the case that the motor rotates at the first rotation speed, the motor can drive the camera assembly to move through the worm wheel and the worm.

Optionally, the terminal device in the embodiment of the present invention may be a full-screen terminal device, and the full-screen terminal device may include a camera assembly and a motor connected to the camera assembly inside.

Illustratively, when a user triggers the full-screen terminal device to start a camera, a motor in the terminal device can drive the camera component to pop up from the inside of the full-screen terminal device; when a user triggers the full-screen terminal equipment to close the camera, the motor in the terminal equipment can drive the camera assembly to retract from the outside of the full-screen terminal equipment. It can be understood that the camera assembly is arranged inside the comprehensive screen terminal equipment, and the space for arranging the camera assembly is not required to be reserved on the screen of the comprehensive screen terminal equipment, so that the screen occupation ratio of the screen of the comprehensive screen terminal equipment can be improved.

And 102, under the condition that the moving speed is greater than or equal to the target speed, the terminal equipment controls the motor to rotate according to a second rotating speed.

Wherein the second rotation speed is greater than the first rotation speed.

In the embodiment of the invention, under the condition that the motor rotates at the first rotating speed, the camera assembly can do accelerated motion under the driving of the motor, so that the terminal equipment can acquire the moving speed of the camera assembly according to the preset time interval and judge whether the moving speed is greater than or equal to the target speed. If the moving speed is greater than or equal to the target speed, the terminal equipment can determine that the camera assembly has dynamic friction, so that the motor can be controlled to rotate at a second rotating speed (namely the motor is controlled to increase the rotating speed); and if the moving speed is less than the target speed, the terminal device may determine that the camera assembly is accelerating at a large acceleration under the thrust, and may control the motor to rotate at the first rotation speed.

Alternatively, in the embodiment of the present invention, the target speed may be a linear speed corresponding to the first rotation speed.

For example, assuming that the first rotation speed is represented by n1 and the target speed is represented by V1, the target speed can be obtained by the following formula V1 ═ 2 pi × R × n1, where R is the radius of the rotor of the motor.

The embodiment of the invention provides a motor control method, wherein under the condition that the moving speed of a camera assembly is greater than or equal to the linear speed corresponding to the first rotating speed of a motor, the camera assembly has dynamic friction force, the thrust of the motor can be reduced because the dynamic friction force is smaller than static friction force, and the rotation speed of the motor can be increased because the thrust of the motor is negatively correlated with the rotation speed of the motor, so that the time for ejecting the camera assembly from the interior of terminal equipment by driving the motor can be shortened, or the time for retracting the camera assembly from the exterior of the terminal equipment by driving the motor can be shortened.

Optionally, with reference to fig. 2, as shown in fig. 4, before step 101, the motor control method provided in the embodiment of the present invention may further include step 103 and step 104 described below.

Step 103, the terminal device receives a first input of the user.

And 104, the terminal equipment responds to the first input and controls the motor to rotate at a first rotating speed.

The first input can be used for triggering the terminal equipment to turn on or turn off the camera assembly.

Optionally, in this embodiment of the present invention, the first input may be a pressing operation or a stretching operation of the camera assembly by the user; alternatively, the first input may be a touch operation of a user on a target control displayed on the screen.

For example, if the camera assembly is provided with a pressure sensor, if the pressure sensor detects a stretching operation of a user, the terminal device may control the motor to drive the camera assembly to pop up from the inside of the terminal device, that is, turn on the camera assembly; if the pressure sensor detects the pressing operation of the user, the terminal device can control the motor to drive the camera assembly to retract from the outside of the terminal device, namely, the camera assembly is closed.

Illustratively, assume that a first target control and a second target control are displayed on the screen. If the terminal equipment receives the triggering input of the user to the first target control, the terminal equipment can control the motor to drive the camera assembly to pop up from the interior of the terminal equipment, namely, the camera assembly is started; if the terminal device receives the triggering input of the user to the second target control, the terminal device can control the motor to drive the camera assembly to retract from the outside of the terminal device, namely, the camera assembly is closed.

According to the motor control method provided by the embodiment of the invention, the camera component can be arranged in the terminal equipment, and the terminal equipment is triggered to be controlled to open or close the camera component by receiving the input of a user, so that the screen occupation ratio of a screen of the terminal equipment can be improved, and the convenience of taking photos or videos by the user is improved.

Alternatively, in the embodiment of the present invention, the step 104 "controlling the motor to rotate at the first rotation speed" may be specifically implemented by the following step 104A. The "terminal device controls the motor to rotate at the second rotation speed" in step 102 may be specifically realized in step 102A described below.

And 104A, controlling the motor to rotate at a first rotating speed by the terminal equipment according to the first driving parameter.

And step 102A, the terminal equipment controls the motor to rotate according to a second rotating speed according to a second driving parameter.

Wherein the first drive parameter may comprise a first drive signal and a first direction of rotation. The second drive parameters may include a second drive signal and a second rotational direction. The number of pulses of the second driving signal in the unit time is larger than that of the first driving signal in the unit time.

For example, the number of pulses of the first driving signal in a unit time may be 50, and the number of pulses of the second driving signal in a unit time may be 100, that is, the number of pulses of the second driving signal in a unit time is greater than the number of pulses of the first driving signal in a unit time.

Optionally, in the embodiment of the present invention, the first rotation direction may be the same as the second rotation direction, or may be different from the second rotation direction. The method can be determined according to actual use requirements, and the embodiment of the invention is not particularly limited.

Optionally, in the embodiment of the present invention, when the terminal device controls the motor to rotate at the first rotation speed according to the first driving parameter, the moving direction of the camera assembly may be a direction corresponding to the first rotation direction; and under the condition that the terminal equipment controls the motor to rotate according to the second rotating speed according to the second driving parameter, the moving direction of the camera assembly can be a direction corresponding to the second rotating direction.

According to the motor control method provided by the embodiment of the invention, the terminal equipment can improve the rotating speed of the motor by improving the pulse number of the motor in unit time, so that the time for ejecting the motor-driven camera assembly from the inside of the terminal equipment can be shortened, or the time for retracting the motor-driven camera assembly from the outside of the terminal equipment can be shortened.

Alternatively, with reference to fig. 2, as shown in fig. 5, the step 101 may be specifically implemented by a step 101A and a step 101B described below.

Step 101A, the terminal device acquires an acceleration of the camera assembly.

And step 101B, the terminal equipment acquires the moving speed of the camera assembly according to the acceleration.

Optionally, in the embodiment of the present invention, a motion sensor, for example, an acceleration sensor, may be disposed in the camera head assembly.

Taking the example that the terminal device acquires the moving speed of the camera assembly once, the terminal device may acquire an acceleration a of the camera assembly through an acceleration sensor, and acquire a moving speed V2 of the camera assembly as a × T according to the acceleration a.

According to the motor control method provided by the embodiment of the invention, the moving speed of the camera assembly can be obtained by obtaining the acceleration of the camera assembly, so that the terminal equipment can judge whether the moving speed is greater than or equal to the target speed.

Optionally, with reference to fig. 2, as shown in fig. 6, after the step 102, the motor control method provided in the embodiment of the present invention may further include any one of the following first possible implementation manner and second possible implementation manner:

a first possible implementation manner,

And 105, detecting the position of the camera assembly by the terminal equipment.

And 106, under the condition that the position is a preset position, the terminal equipment controls the motor to stop rotating.

Optionally, in the embodiment of the present invention, a target sensor may be disposed in the terminal device, and the target sensor may be used to detect a position where the camera assembly is located.

For example, for a moving process of ejecting the camera assembly from the inside of the terminal device, the terminal device may detect the position of the camera assembly through the target sensor, and if the camera assembly moves to a preset ejection position, the terminal device controls the motor to stop rotating.

For example, for the moving process of retracting the camera assembly from the outside of the terminal device, the terminal device may detect the position of the camera assembly through the target sensor, and if the camera assembly moves to the preset retraction position, the terminal device controls the motor to stop rotating.

A second possible implementation manner,

And step 107, the terminal equipment detects the displacement of the camera assembly.

And 108, under the condition that the displacement is equal to the preset displacement, the terminal equipment controls the motor to stop rotating.

Optionally, in the embodiment of the present invention, a target sensor may be disposed in the terminal device, and the target sensor may be used to detect a displacement amount of the camera assembly.

For example, for a moving process in which the camera assembly is popped up from the inside of the terminal device, the terminal device may detect a displacement amount of the camera assembly through the target sensor, and if the displacement amount of the camera assembly is equal to a first preset displacement amount, the terminal device controls the motor to stop rotating.

For example, for a moving process in which the camera assembly retracts from the outside of the terminal device, the terminal device may detect a displacement amount of the camera assembly through the target sensor, and if the displacement amount of the camera assembly is equal to a second preset displacement amount, the terminal device controls the motor to stop rotating.

According to the motor control method provided by the embodiment of the invention, whether the motor is controlled to stop rotating or not can be determined by detecting the position of the camera assembly or the displacement of the camera assembly, so that the terminal equipment can be quickly braked, namely, the camera can be turned on or turned off.

It should be noted that fig. 4 to 6 in the present embodiment are all exemplified with reference to fig. 2, and form any limitation to the embodiment of the present invention. It is to be understood that fig. 4-6 may also be implemented in combination with any other figures that may be combined in a practical implementation.

As shown in fig. 7, an embodiment of the present invention provides a terminal device 700. The terminal device can internally comprise a camera assembly and a motor connected with the camera assembly, and the motor can be used for driving the camera assembly to move. The terminal device may include an acquisition module 701 and a control module 702. The obtaining module 701 may be configured to obtain a moving speed of the camera assembly when the motor rotates at the first rotation speed, where the moving speed is the moving speed of the camera assembly when the motor rotates at the first rotation speed; the control module 702 may be configured to control the motor to rotate at a second rotation speed, where the second rotation speed is greater than the first rotation speed, when the moving speed obtained by the obtaining module 701 is greater than or equal to the target speed.

Optionally, in an embodiment of the present invention, the target speed may be a linear speed corresponding to the first rotation speed.

Optionally, with reference to fig. 7, as shown in fig. 8, the terminal device provided in the embodiment of the present invention may further include a receiving module 703. The receiving module 703 may be configured to receive a first input of a user before the obtaining module 701 obtains the moving speed of the camera assembly, where the first input may be used to trigger the terminal device to turn on or turn off the camera assembly; the control module 702 may be specifically configured to control the motor to rotate at a first rotation speed in response to the first input received by the receiving module 703.

Optionally, in this embodiment of the present invention, the control module 702 may be specifically configured to control the motor to rotate at a first rotation speed according to a first driving parameter; and controlling the motor to rotate at a second rotating speed according to the second driving parameter. The first driving parameter may include a first driving signal and a first rotation direction, and the second driving parameter may include a second driving signal and a second rotation direction, where the number of pulses of the second driving signal per unit time is greater than the number of pulses of the first driving signal per unit time.

Optionally, in the embodiment of the present invention, the obtaining module 701 may be specifically configured to obtain an acceleration of the camera assembly; and acquiring the moving speed of the camera assembly according to the acceleration.

Optionally, with reference to fig. 7, as shown in fig. 9, the terminal device provided in the embodiment of the present invention may further include a detection module 704. A detection module 704, which can be used to detect the position of the camera assembly, or detect the displacement of the camera assembly; the control module 702 may be further configured to control the motor to stop rotating when the position detected by the detecting module 704 is a preset position; alternatively, in the case where the displacement amount detected by the detection module 704 is equal to a preset displacement amount, the motor is controlled to stop rotating.

The terminal device provided by the embodiment of the present invention can implement each process implemented by the terminal device in the above method embodiments, and is not described here again to avoid repetition.

The embodiment of the invention provides a terminal device, wherein under the condition that the moving speed of a camera component is greater than or equal to the linear speed corresponding to the first rotating speed of a motor, the camera component has dynamic friction force, the dynamic friction force is smaller than static friction force, so that the thrust of the motor can be reduced by the terminal device, and under the condition that the thrust of the motor is reduced, the rotating speed of the motor can be increased by the terminal device, so that the time for ejecting the camera component driven by the motor from the interior of the terminal device can be shortened, or the time for retracting the camera component driven by the motor from the exterior of the terminal device can be shortened.

Fig. 10 is a schematic diagram of a hardware structure of a terminal device for implementing various embodiments of the present invention. As shown in fig. 10, the terminal device 200 includes, but is not limited to: radio frequency unit 201, network module 202, audio output unit 203, input unit 204, sensor 205, display unit 206, user input unit 207, interface unit 208, memory 209, processor 210, and power supply 211. Those skilled in the art will appreciate that the terminal device configuration shown in fig. 10 is not intended to be limiting, and that terminal devices may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal device includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal device, a wearable device, a pedometer, and the like. It should be noted that the terminal device in the embodiment of the present invention may include a camera assembly inside, and a motor connected to the camera assembly, where the motor may be used to drive the camera assembly to move.

The sensor 205 is used for acquiring the moving speed of the camera assembly under the condition that the motor rotates at a first rotating speed; and a processor 210 for controlling the motor to rotate at a second rotation speed, which is greater than the first rotation speed, when the moving speed obtained by the sensor 205 is greater than or equal to the target speed.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 201 may be used for receiving and sending signals during a message transmission and reception process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 210; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 201 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 201 can also communicate with a network and other devices through a wireless communication system.

The terminal device provides the user with wireless broadband internet access through the network module 202, such as helping the user send and receive e-mails, browse webpages, access streaming media, and the like.

The audio output unit 203 may convert audio data received by the radio frequency unit 201 or the network module 202 or stored in the memory 209 into an audio signal and output as sound. Also, the audio output unit 203 may also provide audio output related to a specific function performed by the terminal apparatus 200 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 203 includes a speaker, a buzzer, a receiver, and the like.

The input unit 204 is used to receive an audio or video signal. The input Unit 204 may include a Graphics Processing Unit (GPU) 2041 and a microphone 2042, and the Graphics processor 2041 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 206. The image frames processed by the graphic processor 2041 may be stored in the memory 209 (or other storage medium) or transmitted via the radio frequency unit 201 or the network module 202. The microphone 2042 may receive sound and may be capable of processing such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 201 in case of a phone call mode.

The terminal device 200 further comprises at least one sensor 205, such as light sensors, motion sensors and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 2061 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 2061 and/or the backlight when the terminal apparatus 200 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal device posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 205 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

The Display unit 206 may include a Display panel 2061, and the Display panel 2061 may be configured in the form of a liquid Crystal Display (L acquired Crystal Display, L CD), an Organic light-Emitting Diode (O L ED), or the like.

The user input unit 207 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal device. Specifically, the user input unit 207 includes a touch panel 2071 and other input devices 2072. Touch panel 2071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 2071 (e.g., user operation on or near the touch panel 2071 using a finger, a stylus, or any other suitable object or attachment). The touch panel 2071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 210, and receives and executes commands sent by the processor 210. In addition, the touch panel 2071 may be implemented by using various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. The user input unit 207 may include other input devices 2072 in addition to the touch panel 2071. In particular, the other input devices 2072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not further described herein.

Further, a touch panel 2071 may be overlaid on the display panel 2061, and when the touch panel 2071 detects a touch operation on or near the touch panel 2071, the touch panel is transmitted to the processor 210 to determine the type of the touch event, and then the processor 210 provides a corresponding visual output on the display panel 2061 according to the type of the touch event. Although the touch panel 2071 and the display panel 2061 are shown as two separate components in fig. 10 to implement the input and output functions of the terminal device, in some embodiments, the touch panel 2071 and the display panel 2061 may be integrated to implement the input and output functions of the terminal device, and are not limited herein.

The interface unit 208 is an interface for connecting an external device to the terminal apparatus 200. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 208 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal apparatus 200 or may be used to transmit data between the terminal apparatus 200 and the external device.

The memory 209 may be used to store software programs as well as various data. The memory 209 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 209 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 210 is a control center of the terminal device, connects various parts of the entire terminal device by using various interfaces and lines, and performs various functions of the terminal device and processes data by running or executing software programs and/or modules stored in the memory 209 and calling data stored in the memory 209, thereby performing overall monitoring of the terminal device. Processor 210 may include one or more processing units; optionally, the processor 210 may integrate an application processor and a modem processor, wherein the application processor mainly handles operating systems, user interfaces, application programs, and the like, and the modem processor mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 210.

Terminal device 200 may also include a power source 211 (e.g., a battery) for providing power to various components, and optionally, power source 211 may be logically connected to processor 210 via a power management system, so as to implement functions of managing charging, discharging, and power consumption via the power management system.

In addition, the terminal device 200 includes some functional modules that are not shown, and are not described in detail here.

Optionally, an embodiment of the present invention further provides a terminal device, which includes the processor 210 shown in fig. 10, the memory 209, and a computer program stored in the memory 209 and capable of running on the processor 210, where the computer program, when executed by the processor 210, implements the processes of the foregoing method embodiment, and can achieve the same technical effect, and details are not described here to avoid repetition.

The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the processes of the method embodiments, and can achieve the same technical effects, and in order to avoid repetition, the details are not repeated here. Examples of the computer-readable storage medium include a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, and an optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method described in the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A motor control method is applied to a terminal device, and is characterized in that the terminal device internally comprises a camera assembly and a motor connected with the camera assembly, the motor is used for driving the camera assembly to move, and the method comprises the following steps:

under the condition that the motor rotates at a first rotating speed, acquiring the moving speed of the camera assembly;

and controlling the motor to rotate at a second rotating speed under the condition that the moving speed is greater than or equal to a target speed, wherein the second rotating speed is greater than the first rotating speed, and the target speed is a linear speed corresponding to the first rotating speed.

2. The method of claim 1, wherein before acquiring the moving speed of the camera head assembly while the motor is rotating at the first rotational speed, the method further comprises:

receiving a first input of a user, wherein the first input is used for triggering the terminal equipment to turn on or turn off a camera assembly;

in response to the first input, the motor is controlled to rotate at a first rotational speed.

3. The method of claim 2, wherein said controlling said motor to rotate at a first rotational speed comprises:

controlling the motor to rotate at the first rotating speed according to a first driving parameter;

the controlling the motor to rotate according to a second rotating speed comprises the following steps:

controlling the motor to rotate according to the second rotating speed according to a second driving parameter;

the first driving parameter comprises a first driving signal and a first rotating direction, the second driving parameter comprises a second driving signal and a second rotating direction, and the number of pulses of the second driving signal in unit time is larger than that of the first driving signal in unit time.

4. The method of claim 1, wherein the obtaining a movement speed of the camera assembly comprises:

acquiring the acceleration of the camera assembly;

and acquiring the moving speed of the camera assembly according to the acceleration.

5. The method of any of claims 1-4, wherein after controlling the motor to rotate at the second rotational speed, the method further comprises:

detecting the position of the camera assembly; under the condition that the position is a preset position, controlling the motor to stop rotating; alternatively, the first and second electrodes may be,

detecting a displacement amount of the camera assembly; and controlling the motor to stop rotating under the condition that the displacement is equal to the preset displacement.

6. The terminal equipment is characterized in that the interior of the terminal equipment comprises a camera assembly and a motor connected with the camera assembly, and the motor is used for driving the camera assembly to move; the terminal equipment comprises an acquisition module and a control module;

the acquisition module is used for acquiring the moving speed of the camera assembly under the condition that the motor rotates at a first rotating speed;

the control module is configured to control the motor to rotate at a second rotation speed when the moving speed acquired by the acquisition module is greater than or equal to a target speed, where the second rotation speed is greater than the first rotation speed, and the target speed is a linear speed corresponding to the first rotation speed.

7. The terminal device of claim 6, wherein the terminal device further comprises a receiving module;

the receiving module is configured to receive a first input of a user before the obtaining module obtains the moving speed of the camera assembly, where the first input is used to trigger the terminal device to turn on or turn off the camera assembly;

the control module is specifically configured to control the motor to rotate at a first rotation speed in response to the first input received by the receiving module.

8. The terminal device of claim 7,

the control module is specifically used for controlling the motor to rotate at the first rotating speed according to a first driving parameter; controlling the motor to rotate at the second rotating speed according to a second driving parameter;

9. The terminal device of claim 6,

the acquisition module is specifically used for acquiring the acceleration of the camera assembly; and acquiring the moving speed of the camera assembly according to the acceleration.

10. The terminal device according to any one of claims 6 to 9, characterized in that the terminal device further comprises a detection module;

the detection module is used for detecting the position of the camera assembly or detecting the displacement of the camera assembly;

the control module is further used for controlling the motor to stop rotating under the condition that the position detected by the detection module is a preset position; or, the motor is controlled to stop rotating under the condition that the displacement detected by the detection module is equal to a preset displacement.

11. Terminal device, characterized in that it comprises a processor, a memory and a computer program stored on said memory and executable on said processor, said computer program, when executed by said processor, implementing the steps of the motor control method according to any one of claims 1 to 5.

12. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the motor control method according to any one of claims 1 to 5.