CN110113476B

CN110113476B - Protection method and device

Info

Publication number: CN110113476B
Application number: CN201810103598.5A
Authority: CN
Inventors: 沈少武; 刘立婷
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2018-02-01
Filing date: 2018-02-01
Publication date: 2021-09-03
Anticipated expiration: 2038-02-01
Also published as: CN110113476A; WO2019149276A1

Abstract

A protection device and method, the protection device comprising: the system comprises one or more charge sensing elements arranged on a terminal, a charge acquisition circuit connected with the charge sensing elements, and a state detection module connected with the charge acquisition circuit, wherein the charge acquisition circuit generates charges which are radiated out through the charge sensing elements, acquires charges reflected back from each charge sensing element to generate a corresponding induced charge value, and outputs the induced charge value of each charge sensing element to the state detection module; and the state detection module is used for judging whether the terminal is in a falling state or not according to the induced charge value. The scheme provided by the application can judge whether the terminal falls.

Description

Protection method and device

Technical Field

The present invention relates to terminal technologies, and in particular, to a protection method and apparatus.

Background

Nowadays, the use scene of the mobile terminal is more and more complicated, the requirement of the industry and the user on the anti-falling performance of the terminal is higher and higher, and as the screen of the terminal is larger and larger, the thickness is thinner and thinner, and the frame is smaller and smaller or even has no frame, the anti-falling performance of the terminal is weaker and weaker. Therefore, the quality of the anti-falling performance is a very important index of the high-performance terminal, and the stability and the service life of the whole machine are affected.

Disclosure of Invention

At least one embodiment of the invention provides a protection method and a protection device, which can be used for judging whether a terminal falls off or not in time.

To achieve the object of the present invention, at least one embodiment of the present invention provides a protection device, including: one or more charge induction elements arranged on the terminal, a charge acquisition circuit connected with the charge induction elements, and a state detection module connected with the charge acquisition circuit, wherein:

the charge sensing element is used for radiating the charges generated by the charge acquisition circuit and transmitting the reflected charges to the charge acquisition circuit;

the charge collection circuit is used for generating charges to be radiated out through the charge sensing elements, collecting the charges reflected back from each charge sensing element to generate corresponding induced charge values, and outputting the induced charge values of each charge sensing element to the state detection module;

and the state detection module is used for judging whether the terminal is in a falling state or not according to the induced charge value.

An embodiment of the present invention provides a protection method, including:

generating charges which are radiated out through one or more charge sensing elements;

collecting the electric charge reflected back from each charge induction element to generate an induction charge value of the charge induction element;

and judging whether the terminal is in a falling state or not according to the induced charge value.

Compared with the related art, at least one embodiment of the present application provides a protection method, which can determine whether the terminal is dropped according to the induced charge value. In another embodiment, fall protection can be performed after a fall has occurred.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.

Fig. 1 is a block diagram of a protection device according to an embodiment of the present invention;

FIG. 2 is a block diagram of a charge sensing device according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of charge induction according to an embodiment of the present invention;

fig. 4 is a graph illustrating induced charge variation of an antenna at different distances according to an embodiment of the present invention;

FIG. 5 is a schematic view of a motor module according to an embodiment of the present invention;

fig. 6 is a flowchart of a protection method according to an embodiment of the present invention.

Fig. 7(a) is a schematic diagram of a terminal security placement according to an embodiment of the present invention;

fig. 7(B) is a schematic diagram of a terminal portion being suspended according to an embodiment of the present invention;

fig. 8(a) is a schematic diagram of a terminal being held safely according to an embodiment of the present invention;

fig. 8(B) is a schematic diagram of an insecure holding of a terminal according to an embodiment of the present invention;

fig. 9 is a schematic view illustrating a horizontal landing of a terminal according to an embodiment of the present invention;

fig. 10 is a schematic diagram illustrating a terminal being tilted to the ground according to an embodiment of the present invention;

fig. 11 is a schematic diagram of different falling states of the terminal according to an embodiment of the present invention;

fig. 12 is a flowchart of a protection method according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

The steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.

When a user places the terminal, whether the terminal is in a safe placing state or not, or the terminal is in an unstable placing state due to the fact that the terminal is deviated by other external factors, or the terminal is placed in a trousers pocket of the user, when the terminal is placed in a coat pocket, if the terminal is in an unstable or unsafe wrapping state, the terminal can prompt the user to remind the user, and the probability that the terminal is dropped can be reduced.

When the terminal is accidentally landed, the most fatal damaged parts are generally the display screen and four fragile corners, and more often, the corners are damaged, so that the screen is broken. Therefore, if the falling state of the terminal can be adjusted, the terminal can fall to the ground horizontally or to the side, so that the stress of each part is uniform when the terminal falls to the ground, and the terminal is not in a certain direction or a certain corner, the probability of damage to the terminal shell and the screen can be greatly reduced. In addition, when the terminal is landed on the screen surface and the terminal is landed on the back surface, the damage degree of the latter is much smaller. Therefore, the landing contact surface of the terminal is also a great factor for determining that the terminal is broken, and the falling state of the terminal is adjusted, so that the screen surface of the terminal is back to the ground when the terminal falls to the ground, and the damage probability can be greatly reduced. It should be noted that landing is not only ground but also all platforms such as a desktop and the like where the terminal is dropped are included in the present application.

Fig. 1 is a structural diagram of a protection device according to an embodiment of the present invention. As shown in fig. 1, the mobile terminal comprises one or more charge sensing elements 11 arranged on the terminal, a charge collection circuit 12 connected to the charge sensing elements 11, a state detection module 13 connected to the charge collection circuit 12, an anti-falling protection module 14 connected to the state detection module 13, and a state reminding module 15 connected to the state detection module 13. It should be noted that, in an embodiment, only the charge sensing element 11, the charge collection circuit 12, and the state detection module 13 may be included, or only the charge sensing element 11, the charge collection circuit 12, and the state detection module 13 may be included, and one of the anti-falling protection module 14 and the state reminding module 15 may be included.

The charge sensing element 11 is configured to radiate charges generated by the charge collection circuit 12, collect the reflected charges, and transmit the collected charges to the charge collection circuit 12. The charge-sensing element 11 may directly use a functional element existing in the terminal, or may be provided with some conductive elements as the charge-sensing element. For example, the charge-sensing element 11 may include at least one of: the antenna of the terminal, the metal shell of the terminal, the metal frame of the terminal, and the metal wiring or coil arranged on the printed circuit board on the terminal. The antenna in the terminal may include a wireless cellular Communication antenna (such as a 2G/3G/4G antenna), WIFI and bluetooth wireless Communication antennas, a GPS receiving antenna, and an NFC (Near Field Communication) induction antenna. The charge-sensing elements 11 may be distributed around the four corners or sides of the terminal, back shell, frame, etc. The charge induction element 11 protects a coaxial line or a microstrip line through a shield of a certain width and length, and the strip line is connected to each channel position of the charge collection circuit 12.

One implementation of the charge sensing element is shown in fig. 2, and includes a main antenna 21, a main antenna 22, a diversity antenna 23, a GPS antenna 24, a WIFI bluetooth antenna 25, an NFC antenna 26, a metal coil 27, a metal coil 28, and a metal bezel 29. The distribution positions of the terminals are shown in fig. 2, and can be four corners of the terminal, such as a main antenna 21, a main antenna 22, a diversity antenna 23 and a GPS antenna 24; the side of the terminal may also be, for example, the WIFI bluetooth antenna 25, the metal coil 27, and the metal coil 28, or the back shell of the terminal may also be, for example, the NFC antenna 26. It should be noted that only one or more of the charge-sensing elements shown in fig. 2 may be included. The position of the charge-inducing element 11 is not limited to the position shown in fig. 2, and may be other positions. In addition, the area occupied by the region where each charge-sensing element 11 is distributed is larger than 0, which is not a single point.

The charge sensing elements and the charge collecting circuit are connected in a star shape as shown in fig. 2, so that the sensing state information of four corners and the left side surface and the right side surface of the terminal can be detected simultaneously, and 360-degree dead-corner-free protection is realized.

The charge collection circuit 12 is configured to generate charges, radiate the generated charges through the charge sensing elements, obtain the charges collected by each charge sensing element, and output a sensed charge value to the state detection module. The method is characterized in that the collection of micro charge changes of all regions of each terminal is completed, the method is composed of a sensitive charge collection loop, each charge induction element is used as a reference plane, a platform, a human body and an object which are contacted with a terminal are used as induction planes, and whether the corresponding region of the terminal leaves the contact plane or not is judged by measuring the change of the micro charge values between the two planes. The charge collection circuit 12 has a charge bar circuit that continuously radiates a trace amount of charge signals outwards, when the radiated charge signals meet an obstacle, a part of the charge signals are reflected back, the reflected amount value is affected by the distance of the obstacle and the projection area, the charge collection circuit collects the reflected charges, and the reflected charges are converted into corresponding digital signal values through analog-to-digital conversion and stored, for example, in corresponding registers. As shown in fig. 3, the charge induction element and the object contacted or approached by the charge induction element form a certain vertical projection area at a corresponding angle, and the induced charges reflected between the projection areas in the direction are collected.

The principle is as follows: when the upper part of the terminal corresponding area, such as the lower part, is away from the opening platform, the charge quantity collected by the charge collection circuit can be reduced sharply; when the terminal is close to a certain platform or an object, the charge quantity collected by the charge collection circuit is increased sharply, and the changed charge quantity is changed from a femtofarad level to a picofarad level.

The specific charge quantity can be controlled, and the induced charge quantity and the detectable distance are controlled by a sensitivity gain parameter and are in inverse proportion to the detection distance and in proportion to the induced projection area. Meanwhile, the sensing distance can be made to vary from 0MM to 120CM by the setting of the control. The gain is larger, and the adjustable anti-falling height is larger.

By adjusting its sensitivity to within detectable distances, fall-prevention controls of different distances and heights can be identified. The detection distance and the acquisition sensitivity are set by control parameters and can be set and modified according to user requirements, the principle is that the data acquisition rate is higher than the falling completion time, and the detection distance is higher than the current terminal placement height. The charge sensing elements and the charge collecting circuit arranged at all angles and directions of the terminal form star network connection, so that simultaneous and real-time detection of multi-channel multiplexing can be realized, as shown in fig. 2.

Because the conductivity and the dielectric constant of different materials are different, if the material of contact is the metal material, woodwork, glass material, leather products, cloth, the staff, plastics, the air of different temperature and humidity, etc., after this material and terminal correspond induction antenna or metal unit and form the induction interval, the reflection value to the trace electric charge also can be different, with the typical value of the known electric charge reflection model of various materials, add reasonable fluctuation range, save, and establish under the same medium, the corresponding relation of distance and induction charge value, same material like this, induction charge amount through detecting is different, just can judge the distance of terminal and this material.

In the terminal dropping process, the landing speed can be different due to different dropping heights, and the variation of the induced charges can be different at different speeds. Meanwhile, at the same height, due to different landing angles, the projection areas of the corresponding antennas are different, and the induced charge amount is also different, as shown in fig. 4, when the distance is reduced, the charge amount is increased sharply. In addition, under the same distance, the projected areas are different, the electric charge amount is also different, the larger the projected area is, the more the electric charge amount is, fig. 4 illustrates, by taking an antenna as an example, the change of the induced charge value of the charge induction element with different projected areas at different distances, and the change of the other types of charge induction elements along with the projected areas and the distances is similar to this, and the details are not repeated here. And then corresponding falling rate can be calculated by testing the interval charge variation in the terminal falling process, and corresponding anti-falling mechanism is started to adjust corresponding parameters by detecting different falling rates.

The state detection module 13 is configured to determine whether the terminal is in a falling state according to the induced charge value.

In an optional embodiment, the state detection module 13 includes a state determination unit 1301, an environment recognition and calibration unit 1302, and a height, angle, and orientation calculation unit 1303, wherein:

the state determination unit 1301 is configured to determine that the terminal is in a falling state when the induced charge value of the same charge induction element continuously changes. Of course, the determination may be made in other manners, such as that each charge sensing element of the terminal is in a floating state, or that the height of the terminal continuously changes.

Specifically, the state determination unit 131 may detect whether the terminal is in a stationary state or a moving state. And judging whether each part of the current terminal leaves the platform or is in a free fall or is about to contact the ground. And comparing the induced charge value with a prestored parameter model value, and judging that the part is in a certain state in the current corresponding area of the terminal when the test difference value reaches a judgment threshold value.

And detecting the non-free falling body movement of the terminal, such as upward throwing, horizontal throwing, downward throwing, overturning movement and the like, and performing corresponding anti-falling protection measures aiming at the non-free falling body movement. The method comprises the steps of collecting current angle data of a terminal, judging whether the process is an abnormal state or not, and if the acceleration or angular velocity regular change is collected and is consistent with the pre-stored typical motion model parameters, then carrying out non-free falling motion on the motion state type of the terminal, such as up-throwing, horizontal throwing, down-throwing and other external forces. And corresponding anti-falling control is carried out on different motion state types so as to adjust the landing state of the terminal.

In one embodiment, the charge sensing element is at least arranged on the screen surface of the terminal and the back surface of the terminal; the state determination unit 1301 is further configured to: and comparing the induced charge value of the charge induction element on the screen surface of the terminal with the induced charge value of the charge induction element on the back surface of the terminal to judge the screen orientation of the terminal in a falling state.

In an embodiment, the state determination unit 1301 is further configured to invoke an altitude, angle and orientation calculation unit to determine the altitude, angle and orientation of the terminal;

the height angle and orientation calculation unit 1303 is configured to determine the height of each charge sensing element according to the induced charge value of each charge sensing element, determine the angle and orientation of the terminal according to the heights of the charge sensing elements at different positions, and send the height of the terminal, the angle and orientation of the terminal to the state determination unit.

The environment recognition and calibration unit 1302 is configured to receive material information of an object currently in contact with or close to the terminal, which is input by a user, after receiving a notification from the material recognition unit 1304 (at this time, the material recognition unit cannot determine a material of the object currently in contact with or close to the terminal), store a current induced charge value and the material information in a corresponding relationship table between the induced charge value and the material, or update the corresponding relationship table between the induced charge value and the material by using the current induced charge value and the material information. Since the environment of the terminal placement location is complex, when the terminal is placed at a certain location, the terminal enters a calibration mode, and the environment or platform where the terminal is currently located is identified through the environment identification and calibration unit 1302, for example, the environment or platform where the terminal contacts a desktop, different hands, pockets, air, and the ground, and the induced charge value is obtained and stored, that is, calibration is performed once. When the current environment changes, the calibration work needs to be done again. When the subsequent terminal state change is calculated, the background noise parameter is subtracted, and the obtained test value is the final absolute test value.

The inductive charge value of the object contacted with the daily terminal is stored in the state parameter model register, if the contacted material is a metal material, a wooden product, a glass material, a leather product, cloth, a hand, plastic, air with different temperature and humidity and the like, because the dielectric constant of each material is different, after the terminal is contacted with a corresponding charge induction element, the inductive charge value of the charge amount is different, a set of conventional values can be stored in advance, after the terminal is close to a certain object, the value can be directly called, and if the terminal contact environment is changed, the environment recognition and calibration unit 1302 can automatically acquire the inductive charge value and write the inductive charge value into the register.

And the height, angle and orientation calculating unit 1303 is used for detecting the current height, angle and orientation of the terminal. When the terminal is located on a certain plane, if the local part of the terminal is in a suspended state like the bottom, the control module starts a height detection mode, tests the height value of the current terminal relative to the ground plane, and if the height threshold value is greater than the safety threshold value, the state reminding module is started. When the terminal is in the continuous change process of detecting the height change, the terminal can be judged to be in the falling process at present, the terminal falling angle and direction calculation mode is started, and the falling inclination angle and the falling orientation of the terminal are detected. For example, the terminal is divided into four corners of ABCD, the screen surface and the back surface are oriented, and each corner has a different inclination angle, such as 30 degrees, 45 degrees, 60 degrees, 90 degrees, etc. And calculating the current falling angle and orientation value of the terminal by the induced charge values of the charge induction elements arranged at the four corners of the terminal and the charge induction elements on the front side and the back side of the terminal in the falling process. If a certain terminal is in a horizontal falling state with the screen surface facing downwards, the charge sensing elements arranged at the four corners of the terminal can detect the same (or basically the same) induced charge value, and the detection values are in the same trend in the falling process for many times, the calculation terminal can be in a 0-degree horizontal falling state, and if the induced charge value of the charge sensing element arranged on the screen surface of the terminal is larger than that of the charge sensing element arranged on the back surface of the terminal, the current terminal can be judged to be in a screen surface facing downwards falling state.

Similarly, when the heights detected by the charge sensing elements arranged at the four corners of the terminal are inconsistent, the current inclination angle of the terminal on the ground can be calculated through the height difference.

In addition, when a certain corner of the terminal is about to land, the charge sensing element arranged at the corner can detect that the induced charge amount at the position is the maximum, namely the distance to the ground of the corner is the shortest and is in a constant variation trend, and then the terminal can be judged to land at the corner first.

The height of the terminal before landing can be calculated through the induced charge values of the charge induction elements at different positions, the landing time can be calculated through a formula h which is 1/2gt ^2, and the maximum speed before landing can be calculated through a formula V which is gt.

The anti-falling protection module 14 is configured to execute an anti-falling protection operation after receiving the notification of the state detection module 13.

In an optional embodiment, the performing the fall protection operation includes at least one of:

adjusting the falling state of the terminal to enable the terminal to fall in a preset mode;

generating a buffer airflow in a falling direction of the terminal.

In an optional embodiment, the preset manner includes: the terminal screen face faces back to the falling direction and the back face of the terminal is parallel to the final falling plane.

Of course, the preset mode may also be to adjust the falling state of the terminal so that the terminal contacts the ground at one side of the frame and falls to the ground vertically. The side may be a top side, a bottom side, or a left side, or a right side. Typically, the side that is more resistant to falling is selected, for example, if a reinforcement or anti-falling treatment is performed on a side of the terminal, the side may be selected to fall first.

In an alternative embodiment, the fall protection module 14 comprises a fall control unit 1401 and a motor set module 1402, wherein the motor set module 1402 comprises one or more motor units respectively located at different positions of the terminal, each motor unit comprising one or more motors, and wherein:

the state detection module 13 is further configured to notify the anti-falling protection module of carrying state information of the terminal; the state information of the terminal comprises at least one of the height of the terminal, the angle and the direction of the terminal and the screen orientation of the terminal; the dropping speed of the terminal can be included;

the anti-falling control unit 1401 is configured to determine an anti-falling control parameter according to the state information of the terminal, and output a driving instruction to the motor group module according to the anti-falling control parameter;

the motor module 1402 is configured to, after receiving the driving instruction, drive the motor to rotate to generate a torque force to adjust the falling state of the terminal.

In an optional embodiment, the motor module 1402 further includes one or more sealed cavities, each of the sealed cavities including one of the motor units therein, and one or more air holes capable of being opened and closed;

the motor module 1402 is further configured to, after receiving the driving instruction, drive one or more motors to rotate to compress the gas in the sealed cavity, and open the gas hole indicated by the driving instruction to output a gas flow to generate a recoil force to adjust the falling state of the terminal.

In an optional embodiment, the closed cavity includes an air hole with an opening direction being the back of the terminal;

the anti-falling control unit 1401 is further configured to send a buffering instruction to the motor group module when a preset condition is met;

the motor module 1402 is further configured to, after receiving the buffering instruction, rotate the motor to compress the gas in the sealed cavity, and output an air flow through the air hole on the back of the terminal in the opening direction.

In an alternative embodiment, the preset condition is one of the following:

and in the falling state of the terminal, the distance between the terminal and the plane to be contacted reaches a preset value, or the falling time of the terminal exceeds the preset time, or the falling speed of the terminal is greater than the preset speed.

One implementation of the motor set module is shown in fig. 5, and includes a motor 501, a sealed cavity 502 and an air hole 503 at each corner of the terminal, wherein each sealed cavity may be provided with one or more air holes according to the requirement, and the opening directions of the air holes may be towards the screen surface, towards the back surface, towards the side surfaces (left side, right side), towards the bottom, towards the top). In addition, the position and the number of the motors can be set as required. The air holes can be open or can be opened or closed through arrangement.

The anti-falling control unit 1401 can control the operation direction of the motor, such as forward operation or reverse operation; the operation amplitude of the motor can be controlled, the amplitude can be one of two levels, namely small-amplitude deflection or large-amplitude centrifugal motion, and can also be a specific amplitude value; the operating speed of the motor may also be controlled, which may be one of the speed levels, such as slow, medium, or high speed operation, or a specific speed value. The run time and stepping of the motor can also be controlled. The specific parameters are determined according to the current terminal state and the target state to be achieved. The anti-falling control unit 1401 performs the above control by calling a software code command of the control motor group, and performs the driving of the motor by using different motor driving commands and parameters. In addition, the torque and the running direction generated by the rotation of the motor under different anti-falling control parameters are stored in the anti-falling control unit 1401. And comparing the current detected state of the terminal with a target state, determining an anti-falling control parameter, and outputting a driving instruction to the motor based on the anti-falling control parameter until the terminal is detected to safely fall to the ground according to the target state. The falling state of the current terminal can be detected in real time, and corresponding processing and protection can be performed on different states and ground distances.

For slight imbalance, the state of the terminal may be adjusted by eccentric vibration of a single or multiple motors. At the terminal in-process of dropping, when detecting the terminal have slight unbalance and when the inclination that leads to, prevent falling the protection module and can start the resonance balance mechanism, control motor group module is done by a wide margin and is moved on corresponding unbalance direction, the epaxial eccentric wheel of motor shaft also can then rotate together this moment, and because the centre of a circle mass point of eccentric wheel is not on the center of rotation of motor, consequently the motor can be in the state of constantly losing balance and vibrate, the focus at terminal not only can be changed to the moment that its vibration produced, two sets of torques that correspond the direction can also let the terminal get back to the balance again.

If the unbalance is large, the motor arranged in the terminal sealing cavity can be controlled to rotate at a high speed to generate directional airflow to generate recoil force, namely, compressed airflow is generated through the quick rotation of one or more groups of motors and is output through the air holes, so that overturning torsion is generated, and the falling angle and the falling direction or other states of the terminal are controlled.

The motor in the motor group module can also be used as a terminal vibration device. When the motor is used as a conventional vibration device, the rotating speed and the rotating direction of the motor are fixed, and the rotating speed and the duration time are low. And when the motor is in the anti-falling protection mode, the conventional power supply of controlling the motor is converted into high-voltage power supply through the transformer, and when the motor is under the high-voltage power supply, the rotating speed is increased in a large scale in the twinkling of an eye, and continuous airflow with certain intensity is generated, and the airflow can be one, also can be two groups of simultaneous clock directions, also can be four groups of simultaneous clock directions, and the recoil force of the thrust combination through the airflows changes the current falling state of the terminal until the horizontal balance falls to the ground. If the terminal top is higher than the bottom, then can start a set of or two sets of motor high-speed operation near the terminal bottom, produce high-speed air current and spray to the open-ended gas pocket in the back, make the terminal bottom lift up through the reverse thrust of air current, also can start the high-speed operation of the motor that is located the terminal top simultaneously, produce high-speed air current and spray to the open-ended gas pocket of screen face, make the top of terminal push down through the reverse thrust of air current, and a horizontal plane is replied to the bottom at terminal. In addition, the terminal falling state can be quickly changed by combining the two types of airflow in the opposite directions and cooperating the top airflow and the bottom airflow in opposite directions. Also, when the terminal is left-right unbalanced, the current left-right unbalanced state of the terminal may be twisted by the recoil force of the high-speed compressed air flow generated by the rotation of the motor by opening the left or right or left-right reverse air hole.

In addition, when the terminal falls and is about to contact the ground, the falling prevention control unit 1401 turns on the buffer mode: meanwhile, the air holes with openings on the back of the terminal are opened (for example, four air holes positioned at four corners of the back of the terminal are opened, and of course, only one or more air holes can be opened), the motor drives the rotor to generate high-speed compressed air flow to be sprayed out, an air flow protective layer is generated on the ground, and the air impact buffering landing effect is achieved. Specifically, there are a number of ways to turn on the buffer mode:

1. the speed through the vertical direction detects and starts the opening time point, through the speed of falling or the fall time of real-time supervision terminal, when falling speed or fall time are greater than preset threshold value, show that the current height of falling surpasss the safety range, and the impact force to ground is very big, and continue to fall and will produce great damage, at this moment, opens this mode, through the air impact buffering speed that the high-speed motor produced, increase speed is from the length of time to 0 at maximum, terminal will greatly reduced to ground impulse like this.

2. By detecting the height to ground of the terminal, the buffer mode is started when the height to ground reaches a preset threshold (such as 5-10 cm). The method comprises the steps of forming triangular positioning by interconnection of a terminal and two base station cells, testing the ground height of the terminal at the moment of falling, calculating falling time, calculating the ground height of the terminal through time, and starting the buffer mode when the terminal is detected to be about to contact 5-10CM above the ground.

When the terminal is detected to be in a falling trend that the screen face faces the ground, the front side and the back side of the terminal can be turned and adjusted, the falling ground of the terminal is adjusted through airflow torsion or gravity center adjustment, and therefore the screen face faces upwards and the back side faces downwards when the terminal falls to the ground. It should be noted that, if the housing of the terminal has reinforcement and anti-falling processing at a certain position, the balanced landing direction of the terminal can be set in the corresponding direction to control the falling process and the moving direction of the terminal, so that the terminal finally lands on the ground at the position, and other parts of the terminal are prevented from being damaged.

In an optional embodiment, the state detection module 13 is further configured to send a reminding instruction to the state reminding module 14 when it is determined that the user needs to be reminded according to the state of the terminal.

The state reminding module 14 is configured to execute a reminding operation after receiving the reminding instruction sent by the state detecting module 13. The reminding operation can be one or more of the following: displaying prompt information, making a sound prompt, making a vibration prompt, making an indicator light flashing prompt (such as a red indicator light). For example, when the terminal is in an unsafe state, such as a partially suspended position, or when four corners are not overlapped and inclined, the terminal sends an alarm to inform the user so that the user can timely stop falling or place the terminal on a stable platform. In addition, the prompt operation can be triggered to be executed immediately before the user falls to the ground so as to prompt the user or the surrounding people that the current terminal is in an unsafe or about to fall, so that the user or the surrounding people can obviously perceive and take corresponding measures in advance.

For another example, when the terminal is in an unsafe sliding and moving state, the terminal may also make a signal prompt according to the current moving state, and may even display the current ground height information in real time, and the user may learn the current unstable state of the terminal by sensing the signal prompt information of the terminal, and make a position adjustment.

An embodiment of the present invention provides a protection method, as shown in fig. 6, including:

step 601, generating electric charges, and radiating the electric charges through one or more charge sensing elements;

step 602, collecting the electric charge reflected from each of the charge sensing elements to generate an induced charge value of the charge sensing element;

step 603, judging whether the terminal is in a falling state or not according to the induced charge value.

In an embodiment, the determining whether the terminal is in a falling state according to the induced charge value includes: when the induced charge value of the same charge induction element continuously changes, judging that the terminal is in a falling state; or determining the height of the terminal according to the induced charge value, and judging that the terminal is in a falling state when the height of the terminal continuously changes. When the terminal falls, the induced charge value of the charge induction element is continuously increased due to the fact that the terminal is continuously close to the ground, and therefore the terminal can be judged to be in a falling state. Of course, the terminal can be judged to be in a falling state by the fact that all the charge sensing elements of the terminal are in a suspended state, and the like.

In an optional embodiment, the method further includes, when the terminal is in a falling state, performing a fall protection operation, where the fall protection operation includes at least one of:

generating a buffer airflow in a falling direction of the terminal.

In an optional embodiment, the preset manner is: the terminal screen face faces back to the falling direction and the back face of the terminal is parallel to the final falling plane. Of course, this is merely an example, and other ways may be adopted, such as adjusting to land on a certain side of the terminal.

In an optional embodiment, the adjusting the drop state of the terminal includes:

determining anti-falling control parameters according to the state information of the terminal, determining a driving instruction according to the anti-falling control parameters to drive one or more motors to rotate to generate torsion so as to adjust the falling state of the terminal, wherein the state information of the terminal comprises at least one of the height of the terminal, the angle and the direction of the terminal, and the screen orientation of the terminal.

In an alternative embodiment, the altitude of the terminal, the angle and the orientation of the terminal are determined according to the following:

determining the height of each charge induction element according to the induced charge value of each charge induction element, and determining the angle and the direction of the terminal according to the heights of the charge induction elements at different positions;

in an alternative embodiment, the screen orientation of the terminal is determined according to the following:

and comparing the induced charge value of the charge induction element on the screen surface of the terminal with the induced charge value of the charge induction element on the back surface of the terminal to judge the screen orientation of the terminal in a falling state. For example, if the induced charge value of the charge inducing element on the screen surface is greater than that of the charge inducing element on the back surface, the terminal screen surface faces the falling direction.

In an optional embodiment, the method further comprises: when one or more motors are driven to rotate to generate torsion so as to adjust the falling state of the terminal, the air holes in the closed cavity where the motors are located are opened to output airflow so as to generate recoil force.

In an alternative embodiment, the generating of the buffer airflow in the falling direction of the terminal includes:

when the preset conditions are met, the motor is driven to rotate so as to compress the gas in the closed cavity, and the gas flow is output through the gas hole in the back of the terminal in the opening direction.

In an alternative embodiment, the preset condition includes one of:

In an optional embodiment, the method further includes executing a reminding operation when it is determined that the user needs to be reminded according to the state of the terminal.

It should be noted that the anti-falling protection module in the present application may also be used with other state detection devices, that is, the terminal state is not limited to be detected by using the charge sensing element, and other manners may also be used to determine the terminal state. In addition, the state detection module can also be matched with other anti-falling schemes for use.

Example one

As shown in fig. 7(a), the charge sensing element includes antennas at four corners of the terminal, and when the terminal is completely placed on the desktop, since all projection areas of the antennas at four corners of the terminal are on the desktop, the charge collecting circuit can test a relatively large induced charge value, and the induced charge value is the same as the induced charge value corresponding to the pre-stored attribute of the desktop material, so that the terminal can be judged to be safely placed on the desktop.

As shown in fig. 7(B), if the induced charge value detected by one of the charge sensing elements at the bottom of the terminal is very small, for example, 1fF, the system automatically adjusts the amplification gain to detect the ground distance, and if the ground distance is greater than a preset threshold, for example, 0.5 m, it can be determined that the bottom of the terminal is currently in a suspended state.

Example two

As shown in fig. 8(a), when the terminal is placed on a human hand, the induced charge values of A, B, C three areas are obtained, the terminal is judged to contact the human hand at A, B, C three areas, that is, the terminal is in the normal hand holding range, the detection terminal is placed on the hand of the user, the terminal is judged to be in the three-point stable and safe state,

if the terminal moves on the hand and changes to the position shown in fig. 8(B), the induced charge value in the area a is detected to be the same as the induced charge value corresponding to the pre-stored air medium, and is not the hand, and the area B, C is still on the hand, the upper left side of the terminal is judged to be away from the hand holding range, and is not in the three-point stable state, and then an alarm can be sent.

Example three

As shown in fig. 9, in this embodiment, when the terminal is determined to be in the free fall state, the distance from the terminal to the ground is detected, and when the changes in the induced charge values detected by the charge-sensitive elements located at the four corners of the terminal are relatively equal, the terminal is determined to be in the horizontal ground state.

Example four

As shown in fig. 10, the landing angle and the orientation of the terminal are detected, and when the terminal lands on the ground at a certain inclination, the landing inclination can be calculated to be 30 degrees according to the detected distance difference between the two charge sensing elements.

As shown in fig. 11, when the terminal lands on the ground at different angles and directions, the sensing trigger values of the nearest angles to the ground of different charge sensing elements are different, so that the landing angle and direction can be determined.

Example five

Fig. 12 is a flowchart of a protection method according to an embodiment of the present invention, as shown in fig. 12, including:

step 1201, after the terminal system starts the anti-falling mode, detecting whether the terminal is separated from the placing plane in real time;

it should be noted that the fall-prevention mode may not be turned on, and the fall-prevention function is automatically turned on as a system preset function.

Step 1202, if the terminal is separated from the placing plane or the body of the user, detecting the induced charge value of the charge induction element;

step 1203, comparing the induced charge value with relevant parameters of a prestored model, and judging whether the corresponding part of the current terminal leaves the platform or is in a free fall or is about to contact the ground;

step 1204, if the terminal is in a state of partially leaving the platform, sending a prompt signal to remind a user to change the current placement position of the terminal;

step 1205, if the terminal is in the falling process, calculating the current height, angle and landing orientation of the terminal; the screen orientation of the terminal can also be determined;

and 1206, determining anti-falling control parameters according to the height, the angle and the landing orientation information, driving the motor group module to work so as to change the falling direction and the angle of the terminal, and closing related modules of the terminal to play a role in protection.

And subsequently, detecting the current state of the terminal in real time, and performing anti-falling protection operation according to the current state of the terminal until the terminal falls to the ground safely.

An embodiment of the present invention provides a protection device, including a memory and a processor, where the memory stores a program, and the program, when read and executed by the processor, performs the following operations:

and acquiring an induced charge value, and judging whether the terminal is in a falling state or not according to the induced charge value.

In one embodiment, the program when read and executed by the processor further performs the following: and determining the state information of the terminal according to the induced charge value, wherein the state information comprises at least one of the height of the terminal, the angle and the orientation of the terminal and the screen orientation of the terminal.

An embodiment of the present invention provides a computer-readable storage medium storing one or more programs, the one or more programs being executable by one or more processors to perform the steps of:

For details, reference may be made to the foregoing embodiments for determining whether the terminal is in the falling state according to the induced charge value, and details are not described herein.

The computer-readable storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.

Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A protective device, comprising: one or more charge induction elements arranged on the terminal, a charge acquisition circuit connected with the charge induction elements, and a state detection module connected with the charge acquisition circuit, wherein:

the state detection module is used for judging whether the terminal is in a falling state or not according to the induced charge value;

wherein the state detection module is further configured to calculate at least one of: orientation, angle, direction of terminal drop.

2. The protection device according to claim 1, wherein the state detection module comprises a state determination unit, and the state determination unit is configured to determine that the terminal is in a falling state when the induced charge value of the same charge-sensitive element continuously changes.

3. The protection device of claim 2,

the charge induction element is at least arranged on the screen surface of the terminal and the back surface of the terminal;

the state judging unit is further used for comparing the induced charge value of the charge induction element on the screen surface of the terminal with the induced charge value of the charge induction element on the back surface of the terminal to judge the screen orientation of the terminal in a falling state.

4. The protection device of claim 2, wherein the state detection module further comprises an altitude-angular-orientation calculation unit, wherein:

the state judgment unit is further used for calling the height angle position calculation unit to determine the height, the angle and the position of the terminal;

the height angle and orientation calculation unit is used for determining the height of each charge sensing element according to the induced charge value of each charge sensing element, determining the angle and orientation of the terminal according to the heights of the charge sensing elements at different positions, and sending the height of the terminal, the angle and orientation of the terminal to the state determination unit.

5. The protection device of claim 1, further comprising a fall protection module connected to the status detection module, wherein:

the state detection module is further used for informing the anti-falling protection module when the terminal is in a falling state;

the anti-falling protection module is used for executing anti-falling protection operation after receiving the notification of the state detection module, and the execution of the anti-falling protection operation comprises at least one of the following operations:

generating a buffer airflow in a falling direction of the terminal.

6. The protection device according to claim 5, wherein the preset manner comprises:

the screen surface of the terminal faces back to the falling direction, and the back surface of the terminal is parallel to the final falling plane.

7. The protection device according to claim 5 or 6, wherein the fall-protection module comprises a fall-protection control unit and a motor group module, the motor group module comprising one or more motor units respectively in different positions of the terminal, each motor unit comprising one or more motors, wherein:

the state detection module is further configured to carry state information of the terminal when notifying the anti-falling protection module, where the state information of the terminal includes at least one of a height of the terminal, an angle and an orientation of the terminal, and a screen orientation of the terminal;

the anti-falling control unit is used for determining an anti-falling control parameter according to the state information of the terminal and outputting a driving instruction to the motor group module according to the anti-falling control parameter;

and the motor group module is used for driving a motor to rotate to generate torque force to adjust the falling state of the terminal after receiving the driving instruction.

8. The protection device of claim 7, wherein the motor pack module further comprises one or more sealed cavities, the sealed cavities comprising one or more openable and closable air holes, each sealed cavity comprising one of the motor units therein;

the motor group module is further used for driving the motor to rotate to compress the gas in the closed cavity after receiving the driving instruction, and opening the gas hole indicated by the driving instruction to output gas flow to generate recoil force so as to adjust the falling state of the terminal.

9. The protection device of claim 8, wherein the closed cavity includes an air hole having an opening direction of a back surface of the terminal;

the anti-falling control unit is also used for sending a buffering instruction to the motor group module when a preset condition is met;

and the motor group module is also used for driving the motor to compress the gas of the closed cavity after receiving the buffering instruction, and outputting airflow through the air hole on the back of the terminal in the opening direction.

10. The protection device of claim 9, wherein the preset condition comprises one of:

11. A method of protection, comprising:

the generated charges are radiated out through one or more charge sensing elements arranged on the terminal;

judging whether the terminal is in a falling state or not according to the induced charge value;

wherein the induced charge value is further used to calculate at least one of: orientation, angle, direction of terminal drop.

12. The protection method of claim 11, wherein determining whether the terminal is in a dropped state based on the induced charge value comprises:

and when the induced charge value of the same charge induction element continuously changes, judging that the terminal is in a falling state.

13. The protection method of claim 11, wherein the method further comprises: when the terminal is in a falling state, executing a falling prevention protection operation, wherein the falling prevention protection operation comprises at least one of the following operations:

generating a buffer airflow in a falling direction of the terminal.

14. The protection method according to claim 13, wherein the preset manner includes: the terminal screen face faces back to the falling direction and the back face of the terminal is parallel to the final falling plane.

15. The protection method according to claim 13 or 14, wherein said adjusting the drop condition of the terminal comprises:

16. The protection method according to claim 15, wherein the height of the terminal, the angle and the orientation of the terminal are determined according to:

and determining the height of each charge induction element according to the induced charge value of each charge induction element so as to determine the height of the terminal, and determining the angle and the direction of the terminal according to the heights of the charge induction elements at different positions.

17. The protection method according to claim 15, wherein the screen orientation of the terminal is determined according to: and comparing the induced charge value of the charge induction element on the screen surface of the terminal with the induced charge value of the charge induction element on the back surface of the terminal to judge the screen orientation of the terminal in a falling state.

18. The method of claim 15, further comprising opening an air vent in the sealed chamber in which the motor is located to output airflow to generate recoil force when the one or more motors are driven to rotate to generate torque to adjust the terminal drop condition.

19. The method of protecting of claim 18, wherein said generating a buffer flow of air in a direction of a fall of the terminal comprises:

20. The protection method according to claim 19, wherein the preset condition includes one of: