CN115834761A - Screen protection method and device - Google Patents
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Abstract
The application provides a screen protection method and device, relates to the technical field of terminal equipment, and can be used for reducing the probability of damage to a screen due to collision. The method comprises the following steps: detecting that the terminal equipment is in a falling state; determining a first time length and a second time length in response to the fact that the terminal equipment is detected to be in a falling state; if the first duration is shorter than the second duration, determining a first screen contraction speed according to the first duration, and contracting the screen at the first screen contraction speed so as to enable the terminal equipment to contract the screen to a minimum state before colliding with an obstacle in the vertical direction; and if the first time length is greater than or equal to the second time length, determining a second screen contraction speed according to the second time length, and contracting the screen at the second screen contraction speed, so that the terminal equipment contracts the screen to a minimum state before colliding with an obstacle in the horizontal direction.
Description
Technical Field
The application relates to the technical field of terminal equipment, in particular to a screen protection method and device.
Background
With the continuous development of terminal devices, mobile terminal devices (such as smart phones, tablet computers, and the like) have gradually become one of the basic articles for daily life of people, and the use requirements of people for the terminal devices are also continuously enriched. In different usage scenarios of the terminal device, such as making and receiving phone calls or game entertainment, the user's usage requirements for the screen size of the terminal device are different. Therefore, in order to improve the use experience in different scenes, the terminal equipment with the telescopic screen capable of changing the area of the display screen is developed.
However, in the use process of the terminal device, the mobile terminal is inevitably dropped, and when the terminal device is dropped on the ground or collides with other obstacles in the dropping process, a large impulsive force is generated, which may cause the screen of the terminal device to be damaged. In addition, for a terminal device with a retractable screen, the screen size is often larger, so that the screen is more easily damaged in the event of a collision, and the screen maintenance cost is higher.
Disclosure of Invention
The application provides a screen protection method and device, which are used for reducing the collision area of a screen when a terminal device falls so as to reduce the probability of screen damage.
In a first aspect, the present application provides a screen saver method, which is applied to a terminal device including a retractable or expandable screen, and includes: detecting that the terminal equipment is in a falling state; in response to the fact that the terminal equipment is detected to be in a falling state, determining a first duration and a second duration, wherein the first duration is the expected duration of collision of the terminal equipment with an obstacle in the vertical direction, and the second duration is the expected duration of collision of the terminal equipment with an obstacle in the horizontal direction; if the first time length is less than the second time length, determining a first screen contraction speed according to the first time length, and contracting the screen at the first screen contraction speed to enable the terminal equipment to contract the screen to a minimum state before colliding with an obstacle in the vertical direction; and if the first duration is greater than or equal to the second duration, determining a second screen contraction speed according to the second duration, and contracting the screen at the second screen contraction speed, so that the terminal equipment contracts the screen to a minimum state before colliding with the obstacle in the horizontal direction.
Based on the scheme, when the terminal equipment is in a falling state, the shortest time for the terminal equipment to possibly collide is determined by comparing the first time length with the second time length, and then the screen is contracted according to the determined shortest time. In this way, the terminal device retracts the screen to the minimum state before colliding with the obstacle, the terminal device collides with the obstacle in the minimum screen state, and the collision area is smaller than that in the non-retracted state, thereby reducing the probability of damage to the screen.
Optionally, determining the first duration and the second duration specifically includes: acquiring the vertical speed, the horizontal speed, the distance between the terminal equipment and an obstacle in the horizontal direction and the distance between the terminal equipment and the obstacle in the vertical direction; determining a first duration according to the vertical speed of the terminal equipment and the distance between the terminal equipment and an obstacle in the vertical direction; and determining the second time length according to the horizontal speed of the terminal equipment and the distance between the terminal equipment and the obstacle in the horizontal direction.
Optionally, the first screen contraction speed and the first duration satisfy the following relationship:
V 1 ≥W/T 1
wherein, V 1 Is the first screen contraction speed, W is the current screen contraction width, T 1 For the first duration, H is the distance between the terminal device and the obstacle in the vertical direction, V g The vertical speed of the terminal equipment is shown, and g is the gravity acceleration;
the second screen contraction speed and the second duration satisfy the following relationship:
V 2 ≥W/T 2
T 2 ＝L/V 0
wherein, V 2 For the second screen-shrinkage speed, the screen-shrinkage speed,w is the current screen's retractable width, T 2 L is the distance between the terminal device and the obstacle in the horizontal direction, V 0 Is the horizontal velocity of the terminal device.
Optionally, in response to detecting that the terminal device is in a falling state, determining the first duration and the second duration specifically includes: responding to the detected terminal equipment falling state, judging whether preset conditions are met, wherein the preset conditions comprise: the distance between the terminal equipment and the obstacle in the horizontal direction is larger than or equal to a first preset distance, or the distance between the terminal equipment and the obstacle in the vertical direction is larger than or equal to a second preset distance; and under the condition that a preset condition is met, determining a first time length and a second time length.
Optionally, the method further includes: and sending a prompt that the terminal equipment falls off under the condition of meeting the preset condition.
In a second aspect, there is provided a screen saver device, the device comprising: the detection unit is used for detecting that the terminal equipment is in a falling state; the processing unit is used for responding to the falling state of the terminal equipment, and determining a first duration and a second duration, wherein the first duration is the expected duration of collision of the terminal equipment with an obstacle in the vertical direction, and the second duration is the expected duration of collision of the terminal equipment with an obstacle in the horizontal direction; the processing unit is further used for determining a first screen contraction speed according to the first time length when the first time length is smaller than the second time length, and controlling the terminal equipment to contract the screen at the first screen contraction speed so that the terminal equipment contracts the screen to a minimum state before colliding with an obstacle in the vertical direction; and the processing unit is further used for determining a second screen contraction speed according to the second time length when the first time length is greater than or equal to the second time length, and controlling the terminal equipment to contract the screen at the second screen contraction speed so that the terminal equipment contracts the screen to a minimum state before colliding with the obstacle in the horizontal direction.
Optionally, the detection unit is further configured to obtain a vertical speed, a horizontal speed, a distance from an obstacle in the horizontal direction, and a distance from an obstacle in the vertical direction of the terminal device; the processing unit is further used for determining a first duration according to the vertical speed of the terminal equipment and the distance between the terminal equipment and the obstacle in the vertical direction; and the processing unit is further used for determining a second time length according to the horizontal speed of the terminal equipment and the distance between the terminal equipment and the obstacle in the horizontal direction.
Optionally, the first screen contraction speed and the first duration satisfy the following relationship:
V 1 ≥W/T 1
wherein, V 1 Is the first screen contraction speed, W is the current screen contraction width, T 1 For a first duration, H is the distance between the terminal device and the obstacle in the vertical direction, V g The vertical speed of the terminal equipment is shown, and g is the gravity acceleration;
the second screen contraction speed and the second duration satisfy the following relationship:
V 2 ≥W/T 2
T 2 ＝L/V 0
wherein, V 2 For the second screen contraction speed, W is the current screen contraction width, T 2 For the second duration, L is the distance between the terminal device and the obstacle in the horizontal direction, V 0 Is the horizontal velocity of the terminal device.
Optionally, the processing unit is specifically configured to determine whether a preset condition is met in response to detecting that the terminal device is in a falling state, where the preset condition includes: the distance between the terminal equipment and the obstacle in the horizontal direction is larger than or equal to a first preset distance, or the distance between the terminal equipment and the obstacle in the vertical direction is larger than or equal to a second preset distance; the processing unit is specifically configured to determine the first duration and the second duration when a preset condition is met.
Optionally, the processing unit is further configured to control the terminal device to send a reminder that the terminal device falls when the preset condition is met.
In a third aspect, a terminal device is provided, including:
a screen that is retractable or expandable;
one or more processors;
a memory;
wherein the memory has stored therein one or more computer programs comprising instructions which, when executed by the terminal device, cause the terminal device to perform any of the methods provided in the first aspect above.
In a fourth aspect, a computer-readable storage medium is provided, which stores computer instructions that, when executed on a computer, cause the computer to perform any one of the methods provided in the first aspect above.
The technical effects brought by any one of the possible schemes in the second aspect to the fourth aspect may be analyzed in the beneficial effects corresponding to the first aspect, and are not described herein again.
Drawings
Fig. 1 is a schematic structural diagram of a terminal device according to an embodiment of the present application;
fig. 2 is a flowchart of a screen saver method according to an embodiment of the present application;
fig. 3 is a schematic diagram of a drop path of a terminal device according to an embodiment of the present disclosure;
fig. 4 is a schematic diagram of a drop path of another terminal device according to an embodiment of the present disclosure;
fig. 5 is a schematic diagram of a drop path of another terminal device according to the embodiment of the present application;
fig. 6 is a schematic diagram of a drop path of another terminal device according to an embodiment of the present disclosure;
FIG. 7 is a flow chart of another screen saver method provided in the embodiments of the present application;
fig. 8 is a schematic composition diagram of a screen saver according to an embodiment of the present application.
Detailed Description
In the description of this application, "/" means "or" unless otherwise stated, for example, A/B may mean A or B. "and/or" herein is merely an association describing an associated object, and means that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. Further, "at least one" means one or more, "a plurality" means two or more. The terms "first", "second", and the like do not necessarily limit the number and execution order, and the terms "first", "second", and the like do not necessarily limit the difference.
It is noted that the words "exemplary" or "such as" are used herein to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," 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.
As described in the background art, when a terminal device collides with the ground or other obstacles, a large impact force is generated, and for the terminal device with a retractable screen, since the screen size is often larger, the collision area is also larger when the terminal device collides, which easily causes the screen to be damaged.
The conventional screen protection method for the telescopic screen can control the telescopic screen to be stretched before the telescopic screen collides with the ground when the terminal equipment vertically falls, so that the screen of the terminal equipment is effectively protected. However, in a practical use scenario, the terminal device may be thrown out due to some unexpected factors. During the ejection process, the terminal device may collide with the table top or the wall surface before colliding with the ground. Because the conventional screen protection method only considers the distance between the terminal equipment and the ground to control the screen to shrink, the screen of the terminal equipment cannot be timely controlled to shrink before the thrown terminal equipment collides with the ground, and the screen of the terminal equipment cannot be effectively protected.
Based on the technical problem, the application provides a screen protection method and a screen protection device, which can calculate the expected shortest time for collision of terminal equipment when the terminal equipment is detected to be in a falling state, and shrink the screen of the terminal equipment to the minimum state within the expected shortest time, so that the collision area between the terminal equipment and an obstacle is reduced, and the probability of screen damage is reduced.
The screen protection method provided by the embodiment of the application can be applied to the use process of the terminal equipment with the retractable or expandable screen.
The terminal device according to the embodiment of the present application may be a mobile phone, a tablet computer, a desktop computer, a laptop computer, a handheld computer, a notebook computer, an ultra-mobile personal computer (UMPC), a netbook, a cellular phone, a Personal Digital Assistant (PDA), an Augmented Reality (AR) \ Virtual Reality (VR) device, and so on.
Taking the terminal device 100 in this embodiment of the application as a mobile phone as an example, a general hardware architecture of the mobile phone is described below with reference to fig. 1.
As shown in fig. 1, the mobile phone may specifically include: processor 101, radio Frequency (RF) circuitry 102, memory 103, touch screen 104, bluetooth device 105, one or more sensors 106, wi-Fi device 107, positioning device 108, audio circuitry 109, peripherals interface 110, and power system 111. These components may communicate over one or more communication buses or signal lines (not shown in fig. 1). Those skilled in the art will appreciate that the hardware configuration shown in fig. 1 is not intended to be limiting, and that the handset may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
The processor 101 is a control center of the mobile phone, connects various parts of the mobile phone by using various interfaces and lines, and executes various functions of the mobile phone and processes data by running or executing an application program (hereinafter, may be abbreviated as App) stored in the memory 103 and calling data stored in the memory 103. In some embodiments, processor 101 may include one or more processing units.
The rf circuit 102 may be used for receiving and transmitting wireless signals during the transmission and reception of information or calls. In particular, the rf circuit 102 may receive downlink data of the base station and then process the received downlink data to the processor 101; in addition, data relating to uplink is transmitted to the base station. Typically, the radio frequency circuitry 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 circuitry 102 may also communicate with other devices via wireless communication. The wireless communication may use any communication standard or protocol including, but not limited to, global system for mobile communications, general packet radio service, code division multiple access, wideband code division multiple access, long term evolution, email, short message service, and the like.
The memory 103 is used for storing application programs and data, and the processor 101 executes various functions and data processing of the mobile phone by running the application programs and data stored in the memory 103. The memory 103 mainly includes a program storage area and a data storage area, wherein the program storage area can store an operating system and application programs (such as a sound playing function and an image playing function) required by at least one function; the storage data area may store data (such as audio data, a phonebook, etc.) created from the use of the handset. Further, the memory 103 may include high speed random access memory, and may also include non-volatile memory, such as a magnetic disk storage device, a flash memory device, or other volatile solid state storage device. The memory 103 may store various operating systems, such as the IOS operating system developed by apple, the Android operating system developed by google, and so on.
The touch screen 104 may include a touch pad 104-1 and a display 104-2. Wherein the touch pad 104-1 may capture touch events of a user of the cell phone on or near the touch pad 104-1 (e.g., user operation of any suitable object on or near the touch pad 104-1 using a finger, a stylus, etc.) and transmit the captured touch information to another device, such as the processor 101.
The touch screen 104 may be a screen capable of being extended or retracted. For example, the touch screen 104 may adopt a flexible screen made of an OLED (Organic Light-Emitting Diode) material, which has a characteristic of being bendable, twistable, and foldable, so that the touch screen 104 can change a screen area based on the characteristic of the flexible screen.
In the embodiment of the application, the mobile phone can also have a fingerprint identification function. For example, fingerprint identifier 112 may be disposed on the back of the handset (e.g., below the rear camera), or fingerprint identifier 112 may be disposed on the front of the handset (e.g., below touch screen 104). For another example, the fingerprint acquisition device 112 may be configured in the touch screen 104 to realize the fingerprint identification function, that is, the fingerprint acquisition device 112 may be integrated with the touch screen 104 to realize the fingerprint identification function of a mobile phone. In this case, the fingerprint acquisition device 112 is disposed in the touch screen 104, may be a part of the touch screen 104, and may be disposed in the touch screen 104 in other manners. The main component of the fingerprint acquisition device 112 in the present embodiment is a fingerprint sensor, which may employ any type of sensing technology, including but not limited to optical, capacitive, piezoelectric, or ultrasonic sensing technologies, among others.
In the embodiment of the present application, the mobile phone may further include a bluetooth device 105, which is used to implement data exchange between the mobile phone and other short-distance terminals (e.g., mobile phone, smart watch, etc.). The bluetooth device in the embodiment of the present application may be an integrated circuit or a bluetooth chip.
The handset may also include at least one sensor 106, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor that adjusts the brightness of the display of the touch screen 104 according to the brightness of ambient light, and a proximity sensor that turns off the power of the display when the mobile phone is moved to the ear. As one type of motion sensor, the acceleration sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the gesture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer gesture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.
The Wi-Fi device 107 is used for providing network access for the mobile phone according to Wi-Fi related standard protocols, the mobile phone can be accessed to a Wi-Fi access point through the Wi-Fi device 107, so that the mobile phone helps a user to receive and send emails, browse webpages, access streaming media and the like, and wireless broadband internet access is provided for the user. In other embodiments, the Wi-Fi device 107 can also act as a Wi-Fi wireless access point and can provide Wi-Fi network access to other terminals.
And the positioning device 108 is used for providing the geographic position for the mobile phone. It is understood that the positioning device 108 may be a receiver of a Global Positioning System (GPS) or a positioning system such as the beidou satellite navigation system, russian GLONASS, etc. After receiving the geographical location transmitted by the positioning system, the positioning device 108 transmits the information to the processor 101 for processing or transmits the information to the memory 103 for storage. In still other embodiments, the positioning device 108 may also be a receiver of an Assisted Global Positioning System (AGPS) that assists the positioning device 108 in performing ranging and positioning services by acting as an assistance server, in which case the assistance positioning server provides positioning assistance by communicating with the positioning device 108 (i.e., GPS receiver) of a terminal, such as a handset, over a wireless communication network. In some other embodiments, the positioning device 108 may also be a Wi-Fi access point based positioning technology. Each Wi-Fi access point has a globally unique MAC address, so that the terminal can scan and collect broadcast signals of the surrounding Wi-Fi access points under the condition of starting Wi-Fi, and the MAC address broadcasted by the Wi-Fi access points can be acquired; the terminal sends the data (such as the MAC address) capable of indicating the Wi-Fi access point to the location server through the wireless communication network, the location server retrieves the geographical location of each Wi-Fi access point, and calculates the geographical location of the terminal according to the strength of the Wi-Fi broadcast signal and sends the geographical location of the terminal to the positioning device 108 of the terminal.
The audio circuitry 109, speaker 113, microphone 114 may provide an audio interface between the user and the handset. The audio circuit 109 may transmit the electrical signal converted from the received audio data to the speaker 113, and convert the electrical signal into a sound signal by the speaker 113 for output; on the other hand, the microphone 114 converts the collected sound signal into an electrical signal, converts the electrical signal into audio data after being received by the audio circuit 109, and outputs the audio data to the RF circuit 102 to be transmitted to, for example, another cellular phone, or outputs the audio data to the memory 103 for further processing.
A communication interface 110 for providing various interfaces for external input/output devices (e.g., a keyboard, a mouse, an external display, an external memory, a sim card, etc.). For example, the terminal is connected to a mouse or a display through a Universal Serial Bus (USB) interface, connected to a subscriber identity module card (SIM) provided by a telecommunications carrier through a metal contact on a card slot of the SIM card, and used to implement a communication function with other terminals through an interface of a Wi-Fi device 107, an interface of a Near Field Communication (NFC) device, an interface of a bluetooth module, and the like. The communication interface 110 may be used to couple the aforementioned external input/output peripheral devices to the processor 101 and memory 103.
The mobile phone may further include a power supply device 111 (such as a battery and a power management chip) for supplying power to each component, and the battery may be logically connected to the processor 101 through the power management chip, so that the power supply device 111 may perform functions of managing charging, discharging, and power consumption.
Although not shown in fig. 1, the mobile phone may further include a camera (a front camera and/or a rear camera), a flash, a micro projection device, a Near Field Communication (NFC) device, and the like, which are not described in detail herein.
The screen protection method provided by the embodiment of the application is described below with reference to the drawings of the specification.
As shown in fig. 2, an embodiment of the present application provides a screen saver method, including the following steps:
s101, detecting that the terminal equipment is in a falling state.
Wherein the terminal device comprises a retractable or expandable screen. Namely, the screen of the terminal equipment is a telescopic screen.
In the embodiment of the present application, when the terminal device is in a falling state, at least the following two possible situations are included:
case 1: if the terminal equipment vertically falls in the air, the terminal equipment is in a falling state in the process from the beginning of falling to the time when the terminal equipment contacts with the barrier and stops moving. In this state, the falling trajectory of the terminal device can be shown in fig. 3, and it can be seen from the figure that, under the action of gravity, the terminal device makes a uniform acceleration motion with an acceleration of gravity g in the vertical direction.
Case 2: if the terminal equipment is thrown out in a non-vertical direction, correspondingly, the terminal equipment is in a falling state in the process from the beginning of throwing out to the moment that the terminal equipment contacts with the obstacle and stops moving. In this state, the falling trajectory of the terminal device can be as shown in fig. 4. And then the falling track of the terminal equipment is analyzed, the terminal equipment performs uniform motion with the speed in the horizontal direction, and the terminal equipment performs uniform acceleration motion with the acceleration of gravity g in the vertical direction.
Based on the above example, when the terminal device is in a falling state, the acceleration of the terminal device in the vertical direction is the gravitational acceleration g under the action of gravity. Therefore, whether the terminal device is in a falling state or not can be determined according to the acceleration of the terminal device by detecting the acceleration of the terminal device during movement.
Specifically, taking the mobile phone shown in fig. 1 as an example, the terminal device may also include at least one sensor 106. The sensor 106 may be an acceleration sensor, among others. Further, the terminal device can detect the magnitude of acceleration in each direction (generally, three axes) by the acceleration sensor. Step S101 may specifically include: the terminal equipment obtains the acceleration of the terminal equipment in the vertical direction, and when the acceleration of the terminal equipment in the vertical direction is within a first preset range, the terminal equipment can be judged to be in a falling state.
The first preset range may be set by a user, or preset by a system when the terminal device leaves a factory. Illustratively, the minimum value of the first predetermined range may be (g-x m/s) 2 ) The maximum value may be (g + x m/s) 2 ). Wherein g is the gravity acceleration, and x is a preset reasonable value such as 0.2, 0.3, etc. In addition, the magnitude of the gravity acceleration slightly differs with different places on the earth, and the value can be taken according to the specific position condition of the terminal equipment. Typically, the acceleration of gravity is given by g =9.80m/s 2 。
S102, responding to the fact that the terminal device is detected to be in a falling state, the terminal device determines a first time length and a second time length.
The first duration is the expected duration that the terminal device collides with the obstacle in the vertical direction, and the second duration is the expected duration that the terminal device collides with the obstacle in the horizontal direction.
Optionally, after detecting that the terminal device is in the falling state, the terminal device may obtain a vertical speed, a horizontal speed, a distance between the terminal device and an obstacle in the horizontal direction, and a distance between the terminal device and an obstacle in the vertical direction when the terminal device is in the falling state.
In the falling process of the terminal device, the vertical obstacle may be the ground, a table top, or the like, which may be located in the vertical direction of the terminal device, so that the collision occurs based on the movement of the terminal device in the vertical direction. The obstacle in the horizontal direction may be a wall, a cabinet, or the like, which may be located on a falling trajectory of the terminal device in the horizontal direction, so that a collision may occur with the terminal device in the horizontal direction.
Specifically, in the embodiment of the present application, also taking the mobile phone shown in fig. 1 as an example, the terminal device may include at least one sensor 106. The sensor 106 may also be a speed sensor, a distance sensor, or other sensors, among others. Furthermore, the terminal device can acquire the real-time movement speed of the terminal device through the speed sensor. The distance between the terminal device and the obstacle in the horizontal direction and the distance between the terminal device and the obstacle in the vertical direction can also be acquired by the distance sensor.
Further, the terminal device may determine the first duration according to the obtained distance between the vertical speed and the obstacle in the horizontal direction; and determining a second duration according to the acquired horizontal speed of the terminal equipment and the acquired distance between the terminal equipment and the obstacle in the vertical direction.
In the following description, it is defined that the vertical velocity of the terminal device when the terminal device is in a fall is V g Horizontal velocity of V 0 The distance between the terminal device and the obstacle in the horizontal direction is L, the distance between the terminal device and the obstacle in the vertical direction is H, the gravity acceleration is g, and the first duration is T 1 And a second duration of T 2 。
Optionally, based on the falling direction and falling speed of the terminal device in the falling state, step S102 at least includes the following two possible implementation manners:
in a possible implementation manner, based on the situation 1 of the falling state, if the terminal device detects that the terminal device is in the falling state, and the velocity V in the horizontal direction is 0 ＝0m/s 2 . The expected drop trajectory of the terminal device can be as shown in fig. 3, wherein the terminal device is moving with even acceleration in the vertical direction under the action of gravity, and the acceleration is the acceleration of gravity g. In this case, step S102 may be implemented as: in response to detecting that the terminal device is in a falling state, the terminal device acquires V g With H, and according to V g And H, determining T 1 。
In one example, if the velocity V of the terminal device in the vertical direction g ＝0m/s 2 Then, based on the expected falling track of the terminal device, the terminal device performs free-fall motion, so that the first duration T is determined according to the motion rule of the free-fall motion 1 Can be determined according to the following equation (1):
in another example, if the velocity V of the terminal device in the vertical direction g ≠0m/s 2 Then according to the motion law of the uniform acceleration motion, the first time length T 1 It can also be determined according to the following equation (2):
further, based on the foregoing case 1 of the falling state, after determining the first time length, the terminal device may perform the following step S103 according to the first time length.
In another possible implementation manner, based on the situation 2 of the falling state, if the terminal device determines that the terminal device is in the falling state, and the velocity V in the horizontal direction thereof is 0 ≠0m/s 2 . The drop trajectory of the terminal device may be as shown in fig. 4, and thus, step S102 may be specifically implemented as: in response to detecting that the terminal device is in a falling state, the terminal device may determine a first time period T 1 And a second duration T 2 。
The process of determining the first duration by the terminal device may refer to the description related to the above formula (1) and formula (2), and is not described herein again.
Further, in the embodiment of the present application, in addition to determining the first time length T 1 Besides, the terminal device needs to determine the second duration T 2 . Based on the expected falling track of the terminal equipment, the terminal equipment moves at a constant speed in the horizontal direction, and the movement speed is V 0 Then according to the motion rule of uniform motion, the second time length T 2 Can be determined according to the following equation (3):
T 2 ＝L/V 0 (3)
further, after determining the first duration and the second duration, the terminal device may compare the first duration with the second duration, and in case that the first duration is smaller than the second duration, perform the following step S103. Alternatively, in the case where the first duration is greater than or equal to the second duration, the following step S104 is performed.
S103, the terminal device determines a first screen contraction speed according to the first duration, and contracts the screen at the first screen contraction speed.
Specifically, in the case that the first time length is shorter than the second time length, the terminal device may estimate the falling path as shown in fig. 5, where since the first time length is shorter than the second time length, the terminal device has collided with the obstacle in the vertical direction before the terminal device collides with the obstacle in the horizontal direction. Therefore, the terminal device may perform step S103, and before the terminal device collides with the vertical obstacle, the screen is contracted to the minimum screen state, so that the collision area of the screen with the vertical obstacle may be reduced, and the probability of the screen being damaged due to the collision may be reduced.
Optionally, the terminal device may obtain the retractable width of the current screen. And determining the first screen contraction speed according to the first time length and the current screen contraction width of the terminal equipment.
It should be understood that the contractible width of the current screen is the difference between the width of the current screen and the width of the screen when in the minimum state.
Alternatively, the first screen contraction speed may be determined according to the following formula (4):
V 1 W/T of 1 (4)
Wherein, V 1 Is the first screen contraction speed, W is the current screen contraction width, T 1 Is a first duration.
It should be understood that when the terminal device is detected to be in the falling state, if the terminal device determines that the first time length is less than the second time length, it indicates that the terminal device may collide after the first time length based on the expected situation. Thus, the terminal device can contract at the first screen contraction speed V 1 And shrinking the screen, so that the terminal equipment shrinks the screen to a minimum state before collision occurs, and the screen is protected.
S104, the terminal device determines a second screen contraction speed according to the second duration, and contracts the screen at the second screen contraction speed.
Specifically, in the case that the first duration is greater than or equal to the second duration, the terminal device may estimate the falling path as shown in fig. 6, where, because the first duration is greater than or equal to the second duration, the terminal device has collided with the obstacle in the horizontal direction before the terminal device collides with the obstacle in the vertical direction. Therefore, the terminal device can execute step S104 to shrink the screen to the minimum screen state before the terminal device collides with the obstacle in the horizontal direction, so that the collision area of the screen with the obstacle in the vertical direction can be reduced, and the probability of the screen being damaged due to the collision can be reduced.
Optionally, the terminal device may obtain a contractible width of the current screen contracted to the minimum screen. And determining the second screen contraction speed according to the second time length and the current screen contraction width of the terminal equipment.
Alternatively, the second screen contraction speed may be determined according to the following formula (5):
V 2 ≥W/T 2 (5)
wherein, V 2 Is the second screen contraction speed, W is the current screen contraction width, T 2 For a second duration.
It should be understood that when the terminal device is detected to be in the falling state, if the terminal device determines that the first duration is greater than or equal to the second duration, it indicates that the terminal device may collide after the second duration based on the expected situation. Thus, the terminal device can contract at the second screen contraction speed V 2 And shrinking the screen, so that the terminal equipment shrinks the screen to a minimum state before collision occurs to play a role of protecting the screen.
Optionally, after the terminal device shrinks the screen to the minimum screen, if the terminal device is in a relatively stationary state, the terminal device controls the screen to recover to the state before the screen starts to shrink.
For example, the terminal device may detect that the current movement speed of the terminal device is 0m/s through the speed sensor 2 Thereby determining that the terminal device is in a relatively stationary state; or, the terminal device may detect that the position of the terminal device remains unchanged within 5 seconds through a distance sensor or a camera, so as to determine that the terminal device is in a relatively static state. It should be understood that the terminal device may also determine whether it is in a relatively static state in other possible manners, and the embodiment of the present application does not limit a specific implementation manner of this determination process.
Based on the embodiment shown in fig. 2, when the terminal device is in a falling state, the shortest time that the terminal device may collide may be determined by comparing the first duration with the second duration, and then the screen may be shrunk according to the determined shortest time. In this way, the terminal device retracts the screen to the minimum state before colliding with the obstacle, the terminal device collides with the obstacle in the minimum screen state, and the collision area is smaller than that in the non-retracted state, thereby reducing the probability of damage to the screen.
As an alternative embodiment, based on the screen saver method shown in fig. 2, as shown in fig. 7, the step S102 may be implemented as:
s201, responding to the fact that the terminal device is detected to be in a falling state, the terminal device obtains the distance between the terminal device and an obstacle in the horizontal direction and the distance between the terminal device and the obstacle in the vertical direction.
S202, the terminal equipment judges whether preset conditions are met.
Wherein the preset conditions include: when the terminal equipment is in a falling state, the distance between the terminal equipment and the obstacle in the horizontal direction is larger than or equal to a first preset distance, or the distance between the terminal equipment and the obstacle in the vertical direction is larger than or equal to a second preset distance.
S203, under the condition that the preset condition is met, the terminal equipment determines a first time length and a second time length.
The calculation process of the first duration and the second duration may refer to the related description in the embodiment shown in fig. 2, and is not described herein again.
It should be noted that, under the condition that the distance between the terminal device and the obstacle in the horizontal direction is smaller than the first preset distance, or the distance between the terminal device and the obstacle in the vertical direction is smaller than the second preset distance, because the distance between the terminal device and the obstacle is smaller, the distance is safer at this time, and the screen of the terminal device is not damaged enough even when collision occurs, so that the terminal device does not need to shrink the screen under the condition that the preset condition is not met. Otherwise, the terminal device is collided at the distance, and the screen of the terminal device may be damaged greatly. Therefore, under the condition that the preset condition is met, the terminal device may determine the first duration and the second duration, and then execute the above step S103 or S104 according to the size of the first duration and the second duration to protect the screen of the terminal device.
Optionally, the terminal device may perform power-off protection when a preset condition is met.
Optionally, the terminal device may further send a prompt that the terminal device falls when the preset condition is met. For example, if the terminal device determines that the preset condition is met, the terminal device may play a preset prompting ringtone, send a vibration prompt, or send a prompting message to the wearable device, so as to prompt the user that the terminal device is in a falling state.
Based on the embodiment shown in fig. 7, when it is detected that the terminal device is in a falling state, the distance between the terminal device and the obstacle is determined. Therefore, the terminal equipment is prevented from executing the screen protection method under the condition that the user places the mobile terminal or other similar conditions, so that the user experience is improved, and unnecessary energy consumption is reduced.
The above description has presented the scheme provided herein primarily from a methodological perspective. It is understood that each node, for example, a terminal device, for implementing the above functions, includes a corresponding hardware structure and/or software module for performing each function. Those of skill in the art will readily appreciate that the present invention can be implemented in hardware or a combination of hardware and computer software, in conjunction with the exemplary algorithm steps described in connection with the embodiments disclosed herein. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The present application may perform the division of the functional modules on the terminal device according to the above method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, the division of the modules in the present application is schematic, and is only a logical function division, and there may be another division manner in actual implementation.
Fig. 8 shows a schematic composition diagram of a screen saver provided in an embodiment of the present application. As shown in fig. 8, the screen saver 1000 may include a detection unit 1001 and a processing unit 1002.
A detecting unit 1001, configured to detect that the terminal device is in a falling state.
The processing unit 1002 is configured to determine a first duration and a second duration when it is detected that the terminal device is in a falling state, where the first duration is an expected duration when the terminal device collides with an obstacle in a vertical direction, and the second duration is an expected duration when the terminal device collides with an obstacle in a horizontal direction.
The processing unit 1002 is further configured to, when the first time length is less than the second time length, determine a first screen contraction speed according to the first time length, and control the terminal device to contract the screen at the first screen contraction speed, so that the terminal device contracts the screen to a minimum state before colliding with an obstacle in the vertical direction.
The processing unit 1002 is further configured to, when the first duration is greater than or equal to the second duration, determine a second screen contraction speed according to the second duration, and control the terminal device to contract the screen at the second screen contraction speed, so that the terminal device contracts the screen to a minimum state before colliding with the obstacle in the horizontal direction.
Optionally, the detecting unit 1001 is further configured to obtain a vertical speed, a horizontal speed, a distance from an obstacle in the horizontal direction, and a distance from an obstacle in the vertical direction of the terminal device; the processing unit 1002 is further configured to determine a first duration according to the vertical speed of the terminal device and the distance between the terminal device and the obstacle in the vertical direction; the processing unit 1002 is further configured to determine the second time duration according to the horizontal speed of the terminal device and the distance between the terminal device and the obstacle in the horizontal direction.
Optionally, the first screen contraction speed and the first duration satisfy the following relationship:
V 1 ＝W/T 1
wherein, V 1 Is the first screen contraction speed, W is the current screen contraction width, T 1 For a first duration, H is the distance between the terminal device and the obstacle in the vertical direction, V g The vertical speed of the terminal equipment is shown, and g is the gravity acceleration;
the second screen contraction speed and the second duration satisfy the following relationship:
V 2 ＝W/T 2
T 2 ＝L/V 0
wherein, V 2 For the second screen contraction speed, W is the current screen contraction width, T 2 For the second duration, L is the distance between the terminal device and the obstacle in the horizontal direction, V 0 Is the horizontal velocity of the terminal device.
Optionally, the processing unit 1002 is specifically configured to determine whether a preset condition is met under the condition that it is detected that the terminal device is in a falling state, where the preset condition includes: the distance between the terminal equipment and the obstacle in the horizontal direction is larger than or equal to a first preset distance, or the distance between the terminal equipment and the obstacle in the vertical direction is larger than or equal to a second preset distance; the processing unit 1002 is specifically configured to determine the first time duration and the second time duration when a preset condition is met.
Optionally, the processing unit 1002 is further configured to control the terminal device to send a prompt that the terminal device falls when a preset condition is met.
As an example, in connection with the terminal device shown in fig. 1, the detection unit 1001 in fig. 8 may be implemented by one or more sensors 106 in fig. 1; the processing unit 1002 in fig. 8 may be implemented by the processor 101 in fig. 1.
Embodiments of the present invention further provide a computer-readable storage medium, which includes computer-executable instructions, and when the computer-executable instructions run on a computer, the computer is caused to execute any one of the methods provided in the foregoing embodiments.
The embodiment of the present invention further provides a computer program product, which can be directly loaded into the memory and contains software codes, and after being loaded and executed by the computer, the computer program product can implement any one of the methods provided by the above embodiments.
An embodiment of the present application further provides a chip, including: a processing circuit and a transceiver pin, the processing circuit being coupled to the memory via the transceiver pin, the processing circuit causing any of the methods provided by the above embodiments to be performed when the processing circuit executes a computer program or computer-executable instructions in the memory.
Those skilled in the art will recognize that, in one or more of the examples described above, the functions described in this invention may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented using a software program, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer-executable instructions. The processes or functions described in accordance with the embodiments of the present application occur, in whole or in part, when computer-executable instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer executable instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer executable instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). Computer-readable storage media can be any available media that can be accessed by a computer or data storage device including one or more available media integrated servers, data centers, and the like. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), among others.
While the present application has been described in connection with various embodiments, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed application, from a review of the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.
Although the present application has been described in conjunction with specific features and embodiments thereof, it will be evident that various modifications and combinations can be made thereto without departing from the spirit and scope of the application. Accordingly, the specification and figures are merely exemplary of the present application as defined in the appended claims and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of the present application. It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (12)
1. A screen protection method is applied to a terminal device, wherein the terminal device comprises a retractable or expandable screen, and the method comprises the following steps:
detecting that the terminal equipment is in a falling state;
in response to the fact that the terminal device is detected to be in a falling state, determining a first duration and a second duration, wherein the first duration is an expected duration that the terminal device collides with an obstacle in the vertical direction, and the second duration is an expected duration that the terminal device collides with an obstacle in the horizontal direction;
if the first time length is less than the second time length, determining a first screen contraction speed according to the first time length, and contracting the screen at the first screen contraction speed, so that the screen is contracted to a minimum state before the terminal equipment collides with an obstacle in the vertical direction;
if the first duration is greater than or equal to the second duration, determining a second screen contraction speed according to the second duration, and contracting the screen at the second screen contraction speed, so that the screen is contracted to a minimum state before the terminal equipment collides with an obstacle in the horizontal direction.
2. The method of claim 1, wherein determining the first duration and the second duration comprises:
acquiring the vertical speed, the horizontal speed, the distance between the terminal equipment and an obstacle in the horizontal direction and the distance between the terminal equipment and the obstacle in the vertical direction;
determining a first duration according to the vertical speed of the terminal equipment and the distance between the terminal equipment and an obstacle in the vertical direction;
and determining a second time length according to the horizontal speed of the terminal equipment and the distance between the terminal equipment and the obstacle in the horizontal direction.
3. The method of claim 1 or 2, wherein the first screen contraction speed and the first duration satisfy the following relationship:
V 1 ≥W/T 1
wherein, V 1 Is the first screen contraction speed, W is the current screen contraction width, T 1 For a first duration, H is the distance between the terminal device and the obstacle in the vertical direction, V g The vertical speed of the terminal equipment is shown, and g is the gravity acceleration;
the second screen contraction speed and the second duration satisfy the following relationship:
V 2 ≥W/T 2
T 2 ＝L/V 0
wherein, V 2 For the second screen contraction speed, W is the current screen contraction width, T 2 For the second duration, L is the distance between the terminal device and the obstacle in the horizontal direction, V 0 Is the horizontal velocity of the terminal device.
4. The method according to claim 1 or 2, wherein the determining the first duration and the second duration in response to detecting that the terminal device is in a dropped state comprises:
responding to the detection that the terminal equipment is in a falling state, and judging whether preset conditions are met, wherein the preset conditions comprise: the distance between the terminal equipment and the obstacle in the horizontal direction is larger than or equal to a first preset distance, or the distance between the terminal equipment and the obstacle in the vertical direction is larger than or equal to a second preset distance;
and determining the first time length and the second time length under the condition that the preset condition is met.
5. The method of claim 4, further comprising:
and sending a prompt that the terminal equipment falls off under the condition that the preset condition is met.
6. A screen saver device, the device comprising:
the detection unit is used for detecting that the terminal equipment is in a falling state;
the processing unit is used for responding to the detection that the terminal equipment is in a falling state, and determining a first duration and a second duration, wherein the first duration is the expected duration of collision of the terminal equipment with an obstacle in the vertical direction, and the second duration is the expected duration of collision of the terminal equipment with an obstacle in the horizontal direction;
the processing unit is further configured to determine a first screen contraction speed according to the first time length when the first time length is smaller than the second time length, and control the terminal device to contract the screen at the first screen contraction speed, so that the terminal device contracts the screen to a minimum state before colliding with an obstacle in the vertical direction;
the processing unit is further configured to determine a second screen contraction speed according to the second duration when the first duration is greater than or equal to the second duration, and control the terminal device to contract the screen at the second screen contraction speed, so that the terminal device contracts the screen to a minimum state before colliding with an obstacle in the horizontal direction.
7. The apparatus of claim 6,
the detection unit is further used for acquiring the vertical speed, the horizontal speed, the distance between the terminal equipment and an obstacle in the horizontal direction and the distance between the terminal equipment and the obstacle in the vertical direction;
the processing unit is further used for determining a first duration according to the vertical speed of the terminal equipment and the distance between the terminal equipment and an obstacle in the vertical direction;
the processing unit is further configured to determine a second duration according to the horizontal speed of the terminal device and the distance between the terminal device and the obstacle in the horizontal direction.
8. The apparatus of claim 6 or 7, wherein the first screen contraction speed and the first duration satisfy the following relationship:
V 1 ≥W/T 1
wherein, V 1 Is the first screen contraction speed, W is the current screen contraction width, T 1 For a first duration, H is the distance between the terminal device and the obstacle in the vertical direction, V g The vertical speed of the terminal equipment is shown, and g is the gravity acceleration;
the second screen contraction speed and the second duration satisfy the following relationship:
V 2 ≥W/T 2
T 2 ＝L/V 0
wherein, V 2 For the second screen contraction speed, W is the current screen contraction width, T 2 For the second duration, L is the distance between the terminal device and the obstacle in the horizontal direction, V 0 Is the horizontal velocity of the terminal device.
9. The apparatus according to claim 6 or 7,
the processing unit is specifically configured to: responding to the detection that the terminal equipment is in a falling state, and judging whether preset conditions are met, wherein the preset conditions comprise: the distance between the terminal equipment and the obstacle in the horizontal direction is larger than or equal to a first preset distance, or the distance between the terminal equipment and the obstacle in the vertical direction is larger than or equal to a second preset distance;
the processing unit is specifically configured to: and determining the first time length and the second time length under the condition that the preset condition is met.
10. The apparatus according to claim 9, wherein the processing unit is further configured to control the terminal device to send a reminder that the terminal device falls when the preset condition is met.
11. A terminal device, comprising:
a screen that may be contracted or expanded;
one or more processors;
a memory;
wherein the memory has stored therein one or more computer programs comprising instructions which, when executed by the terminal device, cause the terminal device to carry out the method of any of claims 1 to 5.
12. A computer-readable storage medium comprising computer instructions which, when executed on a computer, cause the computer to perform the method of any of claims 1 to 5.
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|---|---|---|---|
| CN202111092883.XA CN115834761A (en) | 2021-09-17 | 2021-09-17 | Screen protection method and device |
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| CN202111092883.XA CN115834761A (en) | 2021-09-17 | 2021-09-17 | Screen protection method and device |
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