Anti-falling method and equipment of electronic device, electronic device and computer storage medium

Abstract

The invention discloses an anti-falling method and equipment of an electronic device, the electronic device and a computer storage medium, the electronic device comprises a body and an electromagnetic buffering device arranged on the outer contour of the body, and the electromagnetic buffering device is connected with a buffering piece and can drive the buffering piece to stretch out or retract back. The anti-falling method comprises the following steps: acquiring state information of the body, and judging whether the body falls or not according to the state information; when the body does not fall off, the electromagnetic buffer device is controlled to be powered off and closed, so that the buffer piece is in a retracted state; when the body falls off, the electromagnetic buffer device is controlled to be powered on and activated so that the buffer piece can be in an extending state. According to the anti-falling method of the electronic device, the electronic device is not easy to break during falling.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic devices, and particularly to a method and device for anti-drop of an electronic device, an electronic device, and a computer storage medium. Background Art

[0002] In the current rapid development of technology, electronic devices have been fully integrated into people's daily life and work scenarios. Among them, power supply electronic devices represented by battery boxes are crucial and supply power stably for many devices. In the field of photography, battery boxes cooperate with photographic equipment to ensure the power supply of cameras and camcorders during shooting. Whether it is professional film production or ordinary daily shooting, photographic equipment frequently moves in complex environments, resulting in a significant increase in the risk of accidental dropping of electronic devices such as battery boxes.

[0003] Currently, to address this risk, electronic devices such as battery boxes are generally equipped with outer casings. Although the outer casing can protect the internal circuits and components to a certain extent and reduce damage caused by external factors, in actual use, the magnitude and direction of the impact force are variable. With only the outer casing, the electronic device is still likely to break when subjected to an impact. Once the outer casing breaks, the internal structure is likely to be damaged, and this kind of damage is usually difficult to recover, seriously affecting the normal use of the electronic device, shortening its service life, and increasing the user's usage cost. Therefore, it is urgent to develop a technology that can effectively improve the anti-drop performance of electronic devices. Summary of the Invention

[0004] The main object of the present invention is to propose a method for anti-drop of an electronic device, aiming to solve the technical problem that current electronic devices are easily damaged when dropped, and significantly improve the anti-drop performance and service life of the electronic device.

[0005] To achieve the above object, the present invention proposes a method for anti-drop of an electronic device, wherein the electronic device includes a main body and an electromagnetic buffer device provided on the outer contour of the main body. The electromagnetic buffer device is connected to a buffer member and can drive the buffer member to extend or retract;

[0006] The anti-drop method includes:

[0007] Obtain the status information of the main body, and determine whether the main body has dropped according to the status information;

[0008] When the main body has not dropped, control the electromagnetic buffer device to be powered off and closed so that the buffer member is in a retracted state;

[0009] When the main body drops, control the electromagnetic buffer device to be powered on and activated so that the buffer member is in an extended state.

[0010] Optionally, the body is a polyhedron having a plurality of vertices, and a plurality of electromagnetic buffer devices are provided. Each electromagnetic buffer device is disposed at a vertex of the body;

[0011] When the body drops, the step of controlling the electromagnetic buffer device to be energized and activated so that the buffer member is in the extended state includes:

[0012] Obtain the dropping posture of the body;

[0013] Determine a plurality of impact vertices on the body in the dropping direction that will impact the impact surface according to the dropping posture, and control the electromagnetic buffer devices located at each of the impact vertices to be energized and activated, and the electromagnetic buffer devices not located at the impact vertices are powered off and closed or energized and activated.

[0014] Optionally, the step of determining a plurality of impact vertices on the body in the dropping direction that will impact the impact surface according to the dropping posture, and controlling the electromagnetic buffer devices located at each of the impact vertices to be energized and activated, and the electromagnetic buffer devices not located at the impact vertices are powered off and closed or energized and activated includes:

[0015] Pre-determine the contact situation between each impact vertex and the impact surface according to the dropping posture;

[0016] When each impact vertex does not contact the impact surface simultaneously, during the energization and activation process, differentially supply power to the electromagnetic buffer device at the impact vertex that first contacts the impact surface with a first preset electric energy, and differentially supply power to the electromagnetic buffer device at the impact vertex that contacts the impact surface later with a second preset electric energy, and the second preset electric energy is less than the first preset electric energy.

[0017] Optionally, after the step of pre-determining the contact situation between each impact vertex and the impact surface according to the dropping posture, the step of determining a plurality of impact vertices on the body in the dropping direction that will impact the impact surface according to the dropping posture, and controlling the electromagnetic buffer devices located at each of the impact vertices to be energized and activated, and the electromagnetic buffer devices not located at the impact vertices are powered off and closed or energized and activated further includes:

[0018] When each impact vertex contacts the impact surface simultaneously, during the energization and activation process, uniformly supply power to the electromagnetic buffer devices at each impact vertex with a third preset electric energy, and the third preset electric energy is less than the first preset electric energy.

[0019] Optionally, the step of pre-determining the contact situation between each impact vertex and the impact surface according to the dropping posture includes:

[0020] Obtain the angular data of the X, Y, and Z axes of the body during the falling process according to the falling posture;

[0021] When the angles of any of the X, Y, and Z axes are not equal to 0°, it is determined that the impact vertices do not contact the impact surface simultaneously;

[0022] When the angles of any of the X, Y, and Z axes are equal to 0°, it is determined that the impact vertices contact the impact surface simultaneously.

[0023] Optionally, the steps of obtaining the status information of the body and determining whether the body falls according to the status information include:

[0024] Collect the acceleration data of the body at a preset frequency;

[0025] When the acceleration data does not exceed a preset value and the duration is less than a preset duration, it is determined that the body does not fall;

[0026] When the acceleration data exceeds a preset value and the duration is greater than a preset duration, it is determined that the body falls.

[0027] Optionally, the electronic device further includes a supercapacitor bank provided on the body, a main power supply and a backup power supply electrically connected to the supercapacitor bank, and the supercapacitor bank is used to supply power to the electromagnetic buffer device;

[0028] The anti-drop method further includes:

[0029] Monitor the power information of the main power supply and determine whether the main power supply is short of power according to the power information;

[0030] When the main power supply is fully charged, control the main power supply to supply power to the supercapacitor bank;

[0031] When the main power supply is short of power, control the backup power supply to supply power to the supercapacitor bank.

[0032] The present invention also provides an anti-drop device for an electronic device, and the anti-drop device for the electronic device includes:

[0033] A memory for storing calculations and programs;

[0034] A processor for implementing the steps of the anti-drop method of the electronic device as described above when executing the computer program.

[0035] The present invention also provides an electronic device, and the electronic device includes the anti-drop device for the electronic device as described above.

[0036] The present invention also provides a computer storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the anti-drop method of the electronic device described above are implemented.

[0037] The electronic device of the present invention is configured with an electromagnetic buffer device for the body. The electromagnetic buffer device is connected to a buffer member and can drive the buffer member to extend or retract. The anti-drop method obtains the status information of the body and determines whether the body drops according to the status information. When the body drops, the electromagnetic buffer device is controlled to be powered on and activated so that the buffer member is in an extended state. The buffer member contacts the ground or other impact objects to absorb most of the impact energy, effectively reducing the impact force received by the body, thereby protecting the electronic device from being easily damaged when dropping; and when the body does not drop, the electromagnetic buffer device is controlled to be powered off and closed so that the buffer member is in a retracted state, which can effectively reduce the power consumption of the electronic device, contribute to improving the battery life and usage duration of the electronic device, and the buffer member remains in a state of being retracted into the body, without increasing the extra volume of the device, maintaining the compactness and convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic structural diagram of an electronic device in an embodiment of the present invention;

[0039] Figure 2 is Figure 1 An exploded view of a partial structure of the electronic device in the embodiment;

[0040] Figure 3 is Figure 1 An exploded view of the electronic device in the embodiment;

[0041] Figure 4 is Figure 1 A schematic structural diagram of the electromagnetic buffer device of the electronic device in the embodiment;

[0042] Figure 5 is Figure 1 A state diagram of the electronic device dropping onto an impact surface in the embodiment;

[0043] Figure 6 It is a flowchart of the anti-drop method of the electronic device in an embodiment of the present invention;

[0044] Figure 7 It is a flowchart of the anti-drop method of the electronic device in another embodiment of the present invention;

[0045] Figure 8 It is a flowchart of the anti-drop method of the electronic device in still another embodiment of the present invention;

[0046] Figure 9 It is a flowchart of the anti-drop method of the electronic device in still another embodiment of the present invention;

[0047] Figure 10 Flow chart of the anti-drop method of the electronic device in another embodiment of the present invention;

[0048] Figure 11 Flow chart of the anti-drop method of the electronic device in another embodiment of the present invention;

[0049] Figure 12 Schematic diagram of the architecture of the anti-drop device of the electronic device in an embodiment of the present invention. Detailed implementation manners

[0050] Next, the solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0051] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0052] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may be a middle element at the same time. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there may be a middle element at the same time.

[0053] In addition, the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions appears to be contradictory or unable to be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0054] An embodiment of the present invention provides an anti-drop method for an electronic device 100. Among them, with reference to Figures 1 to 6 , the electronic device 100 includes a main body 110 and an electromagnetic buffer device 120 provided on the outer contour of the main body 110. The electromagnetic buffer device 120 is connected to a buffer member 10 and can drive the buffer member 10 to extend or retract.

[0055] The main body 110 is the main structure of the electronic device, and is internally provided with components such as a control module 111, a power module, and a sensor module. Figure 1 and Figure 2 As shown, the body 110 may be in the shape of a cube, a cuboid, a cylinder, etc., and this embodiment does not limit this. Figure 3 As shown, the control module 111 is the core control unit of the device, responsible for coordinating the operation and response of each component. The power module can be a battery originally configured by the electronic device 100 (i.e., a built-in battery), which is used to power various electrical components of the electronic device 100 (such as the electromagnetic buffer device 120). The sensor module can be composed of multiple sensors such as an acceleration sensor 112 and a gyroscope 113 to detect the status information of the body 110.

[0056] The electromagnetic buffer device 120 is mainly composed of an electromagnetic driving part (such as an electromagnetic coil, a metal rod, etc.), and the magnitude and direction of the electromagnetic force are controlled to achieve precise driving of the buffer 10. The buffer 10 can be made of specially designed elastic materials, such as high-strength rubber or memory alloy composite materials, to ensure that it can effectively absorb and disperse energy when subjected to a drop impact, and at the same time has good wear resistance and fatigue resistance to ensure long-term reliability.

[0057] For example, Figure 4 As shown, the electromagnetic buffer device 120 includes a housing 121, a telescopic rod 122, an electromagnetic coil 123 and a spring 124;

[0058] The shell 121 is hollow and connected to the body 110;

[0059] The telescopic rod 122 is movably disposed in the housing 121, and the free end of the telescopic rod 122 extends out of the housing 121 and is connected to the buffer 10; wherein the telescopic rod 122 may be an independently disposed rod body, or may be formed by connecting a plurality of (such as two) rod bodies;

[0060] The electromagnetic coil 123 is located in the housing 121 and is sleeved on the telescopic rod 122. The electromagnetic coil 123 is electrically connected to the controller to generate an electromagnetic force to be applied to the telescopic rod 122 when powered on, so that the telescopic rod 122 moves to drive the buffer 10 to extend.

[0061] The spring 124 acts on the telescopic rod 122 , and the spring 124 is used to provide elastic force to the telescopic rod 122 to reset the telescopic rod 122 so as to drive the buffer 10 to retract.

[0062] According to the law of electromagnetic induction, when an electric current passes through the electromagnetic coil 123, a magnetic field will be generated around it. After the electromagnetic coil 123 sleeved on the telescopic rod 122 is energized, the generated magnetic field interacts with the telescopic rod 122 to generate an electromagnetic force. The magnitude and direction of this electromagnetic force can be adjusted by controlling the magnitude and direction of the electric current. Specifically, when the control module 111 issues an energization instruction, the electromagnetic force generated by the electromagnetic coil 123 acts on the telescopic rod 122, overcomes the elastic force of the spring 124, and drives the telescopic rod 122 to extend outward from the initial position, realizing the extension action of the buffer member 10.

[0063] The spring 124 has elastic potential energy. When the telescopic rod 122 extends outward by overcoming the elastic force of the spring 124 under the action of an external force (electromagnetic force), the spring 124 deforms to store elastic potential energy. When the electromagnetic force disappears, the spring 124 releases the stored elastic potential energy in order to return to the initial state, generating an inward acting force that acts on the telescopic rod 122, causing the telescopic rod 122 to retract and driving the buffer member 10 back to the initial position.

[0064] Further, as Figure 4 shown, one end of the telescopic rod 122 away from its free end extends outside the housing 121 and is provided with a limiting portion 1221 extending radially. The spring 124 is located between the housing 121 and the limiting portion 1221. One end of the spring 124 abuts against the housing 121, and the other end of the spring 124 abuts against the limiting portion 1221. Specifically, when the telescopic rod 122 extends outward by overcoming the elastic force of the spring 124 under the action of an external force (electromagnetic force), the limiting portion 1221 on the telescopic rod 122 and the housing 121 relatively squeeze the spring 124, so that the spring 124 is compressed to store elastic potential energy. When the electromagnetic force disappears, the spring 124 releases the stored elastic potential energy, and the generated elastic force is applied inward to the limiting portion 1221 on the telescopic rod 122, causing the telescopic rod 122 to retract and driving the buffer member 10 to reset to the initial position.

[0065] The electromagnetic buffer device 120 can realize the rapid extension and reliable retraction of the buffer member 10 through a uniquely designed structure, utilizing the synergistic effect of the electromagnetic force and the spring 124 force, improving the protection effect and the stability of the device.

[0066] Referring to Figure 6 , the anti-drop method includes:

[0067] Step S100: Obtain the state information of the main body 110, and judge whether the main body 110 drops according to the state information;

[0068] In this implementation step, the sensor module collects the status information of the main body 110 in real time, such as data on acceleration, speed, etc. The control module 111 analyzes and processes this data based on a preset algorithm to determine whether the main body 110 is in a falling state. For example, when the acceleration sensor 112 detects that the acceleration of the main body 110 is greater than the acceleration due to gravity and the duration exceeds a preset threshold, and at the same time the data of the gyroscope 113 indicates that the attitude of the main body 110 has changed drastically, the control module 111 determines that the main body 110 is in a falling state.

[0069] Step S200: When the main body 110 is not falling, control the electromagnetic buffer device 120 to cut off the power and turn off so that the buffer member 10 is in the retracted state;

[0070] In this implementation step, when the control module 111 determines that the main body 110 is not in a falling state, such as when the electronic device 100 is in a steady placement, normal hand-held movement, etc. state, the control module 111 sends a power-off signal to the electromagnetic buffer device 120. The electromagnetic buffer device 120 loses the electromagnetic force, and the buffer member 10 retracts into the interior of the main body 110 under the action of the return spring 124, maintaining the compact appearance of the device, avoiding an increase in volume due to the exposure of the buffer member 10, and at the same time reducing unnecessary power consumption.

[0071] Step S300: When the main body 110 falls, control the electromagnetic buffer device 120 to be powered on and activated so that the buffer member 10 is in the extended state.

[0072] In this implementation step, once the control module 111 determines that the main body 110 has fallen, it immediately sends a power-on signal to the electromagnetic buffer device 120. The electromagnetic buffer device 120 generates an electromagnetic force after being powered on, pushing the buffer member 10 to quickly extend outside the outer contour of the main body 110. When the buffer member 10 contacts the ground or other impact objects, it absorbs the impact energy through its own elastic deformation, dispersing most of the impact force, thereby effectively reducing the impact force borne by the main body 110 and protecting the internal structure of the electronic device 100.

[0073] Taking the battery box of photographic equipment as an example, electromagnetic buffer devices 120 are installed at the corners of the main body 110 of the battery box, and each electromagnetic buffer device 120 is equipped with a columnar buffer member 10. The sensor module integrates an acceleration sensor 112 and a gyroscope 113, and the control module 111 uses a high-performance single-chip microcomputer. During actual shooting, when the battery box accidentally falls, the sensor module quickly collects data and transmits it to the control module 111. The control module 111 determines that the battery box is in a falling state within a short time, and then sends a power-on signal to the electromagnetic buffer device 120. The electromagnetic buffer device 120 drives the buffer member 10 to extend and contact the ground, absorbing the impact energy through the elastic deformation of the buffer member 10 to protect the circuits and batteries inside the battery box.

[0074] The technical solution of the present invention comprehensively applies sensor technology, electromagnetic drive technology, and energy absorption principle. The sensor module uses a variety of sensors to collect the status information of the main body 110 in real time, providing data support for the control module 111. The control module 111 analyzes the sensor data according to the preset algorithm to accurately judge the falling state of the main body 110. The electromagnetic buffer device 120 adopts an electromagnetic drive method. By controlling the power on and off, the buffer member 10 is extended and retracted. At the moment of falling, the buffer member 10 extends, and the kinetic energy generated by the impact is converted into elastic potential energy by using the elastic deformation of the buffer member 10, so as to achieve the purpose of absorbing the impact energy and protecting the main body 110.

[0075] When the electronic device 100 of the present invention falls, the buffer member 10 can extend in time, effectively absorb most of the impact energy, reduce the impact force on the main body 110 to a safe range, greatly reduce the possibility of the outer shell cracking and internal structure damage, and significantly improve the anti-fall performance of the electronic device 100; and only when the main body 110 falls, the electromagnetic buffer device 120 is powered on to work, and it is in a power-off state when the main body 110 does not fall. Compared with the protection device that works continuously, the power consumption is greatly reduced, and the battery life of the electronic device 100 is extended. In addition, when not in use, the buffer member 10 retracts into the main body 110, without increasing the extra volume of the device, keeping the electronic device 100 convenient to carry and use, and meeting the user's demand for the compact design of the device.

[0076] The electronic device 100 involved in the present invention can be an electronic device 100 with a built-in battery such as a battery box of a photographic equipment. In addition to the battery box of the photographic equipment, it can also be widely applied to other various electronic devices 100 that are prone to falling, such as a mobile power supply, a handheld electronic device, etc., and has a broad market application prospect.

[0077] In some embodiments, referring to Figure 1 、 Figure 2 and Figure 5 , the main body 110 is a polyhedron with multiple vertices, and the number of electromagnetic buffer devices 120 is set to be multiple, and each electromagnetic buffer device 120 is arranged at a vertex of the main body 110; the so-called polyhedron refers to a geometric body surrounded by several plane polygons, such as a cube, a cuboid, etc. Among them, the polygon surrounding the polyhedron is called the face of the polyhedron, the common side of two faces is called the edge of the polyhedron, and the common vertex of several edges is called the vertex of the polyhedron. For example, when the main body 110 is a cube or a cuboid, it has eight vertices. The vertices of the polyhedron are distributed at various key positions of the device. As Figure 5 shown, when the electronic device 100 accidentally falls, one or more of its vertices may first contact the ground.

[0078] Referring toFigure 7 , step S300 includes:

[0079] Step S310: Obtain the dropping posture of the main body 110;

[0080] In this implementation step, the sensor module (such as the fusion data of the gyroscope 113 and the acceleration sensor 112) calculates the real-time attitude parameters (such as Euler angles: roll angle, pitch angle, yaw angle) of the main body 110 in three-dimensional space, and determines the falling direction (such as the positive Z-axis direction is the ground direction).

[0081] Step S320: Determine several impact vertices on the main body 110 in the falling direction that will collide with the impact surface (such as the ground) according to the dropping posture, and control the electromagnetic buffer devices 120 located at each impact vertex to be powered on and activated, and the electromagnetic buffer devices 120 not located at the impact vertices are powered off and closed or powered on and activated.

[0082] In this implementation step, according to the attitude parameters and the polyhedron geometric model, calculate the spatial coordinate change trend of each vertex during the falling process, and identify the vertex located at the "front end of the falling direction" as the impact vertex (for example, when the main body 110 drops at a 45° inclination, determine several vertices closest to the ground through coordinate transformation). The control module 111 only sends a power-on signal to the electromagnetic buffer device 120 at the impact vertex to drive the corresponding buffer member 10 to extend, while the electromagnetic buffer device 120 not identified as the impact vertex remains in the powered-off and retracted state, or it can also be synchronously sent a power-on signal to drive the corresponding buffer member 10 to extend.

[0083] Specifically, in this embodiment, the geometric characteristics of the polyhedron (the vertices are the extreme points of the spatial coordinates) are utilized. The attitude matrix of the main body 110 is calculated in real time by the sensor, and combined with the gravity direction (determined by the acceleration sensor), a vertex position model in the three-dimensional space coordinate system is established. When the main body 110 is in a free-fall state, the rate of change of the distance between each vertex and the impact surface is calculated, and the vertex with the largest rate of change of distance and whose coordinates are at the front end of the falling path is determined as the impact vertex. The electromagnetic buffer device 120 adopts a distributed control architecture, and the devices at each vertex independently respond to the control signal. The control module 111 generates a "set of impact vertex coordinates" through real-time attitude calculation, and only sends a power-on command to the devices within this set, and uses electromagnetic force to drive the corresponding buffer member 10 to extend along the vertex normal direction to form an oriented buffer structure for the impact direction. When the buffer member 10 at the impact vertex contacts the impact surface, the impact force at different angles is absorbed through multi-directional elastic deformation (such as the inclined compression of the conical buffer member 10), while the buffer members 10 at non-impact vertices remain retracted to avoid energy loss or structural interference caused by ineffective extension, or extend synchronously with the buffer members 10 at the impact vertex, so as to perform contact buffering with the impact surface when the main body 110 rolls over or the like subsequently, thereby ensuring safety, and either one can be selected according to actual needs.

[0084] On the basis of maintaining the original advantages of low power consumption and compact design, this solution further improves the accuracy and geometric adaptability of anti-drop protection, and is especially suitable for electronic devices 100 with a regular polyhedron shape, providing a more efficient solution for complex drop scenarios.

[0085] In some embodiments, referring to Figure 8 , step S320 includes:

[0086] Step S321: Predetermine the contact situation between each impact vertex and the impact surface according to the drop attitude;

[0087] In this implementation step, the control module 111 calculates the expected contact time between each impact vertex and the impact surface (such as the ground) through a dynamic simulation algorithm (such as the Newton-Euler equation) based on the drop attitude data (such as Euler angles, rate of change of spatial coordinates) and the polyhedron geometric model. For example, when the main body 110 drops in an inclined attitude, by solving the displacement function of each impact vertex in the gravity direction, the expected contact times of impact vertices A, B, C, and D are determined to be t1, t2, t3, and t4 (t1 < t2 < t3 < t4) respectively. Of course, this is only exemplary and not restrictive.

[0088] Step S322: When the impact vertices do not contact the impact surface simultaneously, during the power-on activation process, the electromagnetic buffer device 120 at the impact vertex that first contacts the impact surface is differentially powered with a first preset electric energy, and the electromagnetic buffer device 120 at the impact vertex that contacts the impact surface later is differentially powered with a second preset electric energy, where the second preset electric energy is less than the first preset electric energy.

[0089] In this implementation step, for the impact vertex that first contacts the impact surface (such as impact vertex A corresponding to t1), the control module 111 drives the electromagnetic buffer device 120 with a first preset electric energy (higher than the conventional power supply power) during the extension process of the buffer member 10, so that the buffer member 10 obtains a greater extension speed and initial stiffness, and quickly establishes the impact absorption ability.

[0090] For the impact vertices that contact later (such as impact vertex B corresponding to t2, impact vertex C corresponding to t3, and impact vertex D corresponding to t4), they are powered with a second preset electric energy (lower than the first preset electric energy) to ensure that the buffer member 10 provides an appropriate buffer force when contacting.

[0091] For the first-contact vertex, by increasing the instantaneous current of the electromagnetic coil 123 (such as twice the conventional current), the extension speed of the buffer member 10 is increased, and the initial support stiffness of the buffer member 10 is enhanced by electromagnetic force at the moment of contact, effectively absorbing the high-frequency impact energy of the first impact (such as the peak impact force within 5 ms before contact). For the subsequent contact impact vertices, the instantaneous current of the electromagnetic coil 123 is increased (such as 1.5 times the conventional current) to control the extension stiffness of the buffer member 10, so that it shows a "soft buffer" characteristic when contacting, mainly used to disperse the residual impact force and stabilize the attitude of the main body 110, and avoid the impact force superposition caused by multiple buffer members 10 contacting hard at the same time. Among them, the mechanical properties of the buffer member 10 are positively correlated with the power supply power: high electric energy corresponds to high stiffness (the elastic modulus increases), which is suitable for the rigid impact absorption of the first-contact vertex; low electric energy corresponds to low stiffness (the elastic modulus decreases), which is suitable for the flexible buffer of the subsequent vertices, forming a "rigid-flexible combination" multi-stage buffer system to cover different energy absorption stages of the impact process.

[0092] In this embodiment, for non-vertical drops (such as compound motions like rolling and side sliding), through contact sequence prediction and hierarchical power supply, the mechanical properties of each buffer member 10 can be dynamically adjusted to ensure that an optimal buffer combination can be formed regardless of whether the first-contact impact vertex is a single point, two points, or three points. For example, when the cubic electronic device 100 drops, a high-stiffness impact vertex closest to the ground at the bottom extends, and the subsequent impact vertices are assisted with low stiffness in sequence, which can effectively suppress the rolling trend of the device.

[0093] In some embodiments, referring to Figure 8 , after step S321, step S320 further includes:

[0094] Step S323: When each impact vertex contacts the impact surface simultaneously, during the power-on activation process, the electromagnetic buffer device 120 at each impact vertex is uniformly powered with a third preset electric energy, and the third preset electric energy is less than the first preset electric energy.

[0095] In this implementation step, for each impact vertex that simultaneously contacts the impact surface, the control module 111 drives the electromagnetic buffer device 120 at each impact vertex with a third preset electric energy (which can be equal to the second preset electric energy) during the process of the buffer member 10 extending, ensuring that the buffer members 10 at each impact vertex extend synchronously with a balanced stiffness to form a uniform buffer support.

[0096] Combined with the foregoing embodiments, the solution of the present invention calculates the height differences of each vertex based on the triaxial gyroscope 113, determines the order of the first contact vertex (the lowest vertex) and the subsequent contact ground vertices, applies the first preset electric energy (high power) to the first contact vertex to quickly establish a rigid buffer, and decreases the power supply power (the second preset electric energy) for the subsequent vertices according to the contact order, forming a shock absorption gradient of "rigid first and then soft". When all impact vertices touch the ground synchronously, the impact force is evenly distributed among multiple vertices. At this time, the third preset electric energy (medium power) is used for balanced power supply, so that the buffer members 10 at each impact vertex deform synchronously with the same stiffness, avoiding the torsional stress of the main body 110 caused by single-point overload or non-uniform stiffness at multiple points.

[0097] Among them, the hierarchical power supply strategy avoids unnecessary energy waste. When the contacts are not simultaneous, the power supply energy is adjusted according to the contact order and the magnitude of the impact force, and the first preset electric energy and the second preset electric energy are respectively used for power supply; when the contacts are simultaneous, the third preset electric energy less than the first preset electric energy is used for power supply. While ensuring the anti-drop effect, the energy consumption of the electromagnetic buffer device 120 is reduced, which helps to extend the battery life of the electronic device 100. This solution can adapt to different dropping postures and impact situations. Whether the impact vertices contact non-simultaneously or simultaneously, effective buffer protection can be provided through the corresponding power supply strategy, enhancing the anti-drop ability of the electronic device 100 in various complex actual scenarios.

[0098] In some embodiments, referring to Figure 9 , step S321 includes:

[0099] Step S3211: Obtain the angular data of the X, Y, and Z axes of the main body 110 during the dropping process according to the dropping posture;

[0100] In this implementation step, the state detection module collects the Euler angle data of the main body 110 during the falling process in real time through the gyroscope 113 or the inertial measurement unit (IMU), including the roll angle (Roll) around the X-axis, the pitch angle (Pitch) around the Y-axis, and the yaw angle (Yaw) around the Z-axis, corresponding to the tilt, pitch, and rotation postures of the main body 110 in the three-dimensional space respectively.

[0101] Step S3212: When the angles of any axis among the X, Y, and Z axes are not equal to 0°, it is determined that the impact vertices do not contact the impact surface simultaneously.

[0102] When it is detected that the absolute value of the angle of any one axis among the X, Y, and Z axes is greater than a preset threshold (such as 0.5°) (that is, at least one axis has an angle not equal to 0°), it is determined that the main body 110 is in a tilted or rotated posture. At this time, there are differences in the vertical heights of the impact vertices of the polyhedron in space, resulting in different contact times between the vertices and the impact surface (for example, when a cuboid falls obliquely, the bottom vertices touch the ground in order of height), which is defined as a "non-simultaneous contact" scenario.

[0103] Step S3213: When the angles of any axis among the X, Y, and Z axes are all equal to 0°, it is determined that the impact vertices contact the impact surface simultaneously.

[0104] When the angles of the X, Y, and Z axes are all 0° (or close to 0° within the error range allowed by the sensor accuracy), it is determined that the main body 110 is in an ideal horizontal or vertical posture (for example, when the bottom surface of a cube falls parallel to the ground). At this time, all target impact vertices (such as the four vertices of the bottom surface) are on the same plane, and the contact time difference with the impact surface is less than the mechanical response threshold (such as 5 ms), which is defined as a "simultaneous contact" scenario.

[0105] In some embodiments, referring to Figure 10 , step S100 includes:

[0106] Step S110: Collect the acceleration data of the main body 110 at a preset frequency.

[0107] In this implementation step, the sensor module collects the acceleration signal of the main body 110 at a fixed frequency (such as 240 Hz) through the acceleration sensor 112, and calculates the acceleration data accordingly.

[0108] Step S120: When the acceleration data does not exceed the preset value and the duration is less than the preset duration, it is determined that the main body 110 has not fallen.

[0109] In this implementation step, when the acceleration data does not exceed the preset value (which can be slightly higher than the acceleration due to gravity), and the duration is less than the preset duration (such as 20 ms), it is determined that the main body 110 is in a stationary, stable moving, or normal holding state and has not fallen.

[0110] Step S130: When the acceleration data exceeds a preset value and the duration is greater than a preset duration, it is determined that the main body 110 has fallen.

[0111] In this implementation step, when the acceleration data exceeds a preset value and the duration is greater than a preset duration (such as 20 ms), it is determined that the main body 110 is in a free fall or accelerating impact state, triggering a fall response mechanism.

[0112] Among them, when the electronic device 100 is held or placed, the acceleration is close to the acceleration due to gravity (about 9.8 m / s 2 ), but the direction is stable (such as the Z-axis is vertically downward), and there is no continuous acceleration mutation. When the main body 110 is released from the hold or accidentally drops, it enters the free fall stage, and the acceleration approaches the acceleration due to gravity (when air resistance is ignored, a ≈ 9.8 m / s 2 ), and the duration exceeds the instantaneous jitter duration during normal holding. By setting a threshold slightly higher than the acceleration due to gravity, short-term acceleration fluctuations caused by unstable holding can be excluded.

[0113] Moreover, introducing a preset duration (such as 20 ms) is to filter high-frequency noise and non-fall impacts (such as sudden shaking of a handheld device). Only when the acceleration exceeds the threshold and lasts for a sufficient time is it determined as a real fall, avoiding false triggering caused by accidental vibrations. For example, slight jitter during camera shooting may generate instantaneous acceleration peaks, but the duration is short (<20 ms), and the system will not misjudge it as a fall.

[0114] In some embodiments, referring to Figure 3 , the electronic device 100 further includes a supercapacitor bank provided in the main body 110, a main power supply 114 and a backup power supply 115 electrically connected to the supercapacitor bank, and the supercapacitor bank is used to supply power to the electromagnetic buffer device 120;

[0115] Specifically, the supercapacitor bank is integrated inside the main body 110, has high power density and fast charge and discharge characteristics (such as charge and discharge time ≤ 100 ms), directly supplies power to the electromagnetic buffer device 120, and meets the peak current (such as 2 - 5 A) required for the instantaneous extension of the buffer member 10; the main power supply 114 is usually an in-device battery (such as a lithium battery) of the device, supplies power to the control module 111, the sensor module, etc., and at the same time serves as the main charging power source for the supercapacitor bank; the backup power supply 115 is an energy storage unit independent of the main power supply 114 (such as a button battery, a supercapacitor), and is only enabled when the main power supply 114 has insufficient power to ensure the emergency power supply of the supercapacitor bank.

[0116] Referring to Figure 11 , the anti-fall method further includes:

[0117] Step S400: Monitor the power information of the main power supply 114, and determine whether the main power supply 114 is short of power according to the power information;

[0118] In this implementation step, the control module 111 can collect the output voltage of the main power supply 114 in real time through a voltage sensor, and combine it with a preset power threshold (such as 2% of the total power of the main power supply) to determine the state of the main power supply 114:

[0119] When the output voltage is greater than the power threshold (such as 2% of the total power of the main power supply), it is determined that the power is sufficient;

[0120] When the output voltage is less than the power threshold (such as 2% of the total power of the main power supply), it is determined that the power is insufficient.

[0121] Step S500: When the main power supply 114 has sufficient power, control the main power supply 114 to supply power to the supercapacitor bank;

[0122] In this implementation step, if the main power supply 114 has sufficient power, the control module 111 controls the main power supply 114 to continuously charge the supercapacitor bank to ensure its energy storage state.

[0123] Step S600: When the main power supply 114 is short of power, control the backup power supply 115 to supply power to the supercapacitor bank.

[0124] In this implementation step, when the main power supply 114 is short of power, the control module 111 triggers a switching circuit to disconnect the connection between the main power supply 114 and the supercapacitor bank, and enables the backup power supply 115 to supply power to the supercapacitor bank. Among them, the backup power supply 115 adopts a low-power design and is usually in a dormant state, and is only activated during emergencies to ensure that it can support at least a preset number of times (such as 3 times) of complete extension-retraction operations of the buffer member 10.

[0125] When the power of the main power supply 114 is lower than the preset threshold (such as the power of the photographic battery box is about to run out), the backup power supply 115 automatically takes over to make the anti-drop function continue to be effective. In addition, even if the main power supply 114 is in poor contact due to a drop impact (such as the battery is loose), the backup power supply 115 can still supply power to the supercapacitor bank to ensure that the buffer member 10 extends normally, solving the protection blind spot problem of the traditional single-power supply system when the main power supply 114 fails.

[0126] An embodiment of the present invention also proposes an anti-drop device for an electronic device 100. Refer to Figure 12 and this anti-drop device of the electronic device 100 includes:

[0127] A memory 1005 for storing calculations and programs;

[0128] A processor 1001 for implementing the steps of the anti-drop method of the electronic device 100 as described above when executing a computer program.

[0129] The anti-drop device of the electronic device 100 proposed in the embodiment of the present invention can be a robot or a PC. As Figure 12 shown, the anti-drop device of the electronic device 100 may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, and a communication bus 1002. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display) and an input unit, such as a keyboard (Keyboard). Optionally, the user interface 1003 may further include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface). The memory 1005 may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. Optionally, the memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0130] Those skilled in the art can understand that Figure 12 the structure of the anti-drop device of the electronic device 100 shown in

[0131] does not constitute a limitation on the anti-drop device of the electronic device 100, and may include more or fewer components than those shown, or combine certain components, or have different component arrangements. Figure 12 As shown, the memory 1005, as a computer storage medium, may include an operating system, a network communication module, a user interface module, and a control program for the electronic device 100.

[0132] In Figure 12 the anti-drop device of the electronic device 100 shown, the network interface 1004 is mainly used to connect to the background server and communicate with the background server for data; the user interface 1003 is mainly used to connect to the client (user side) and communicate with the client for data; and the processor 1001 can be used to call the anti-drop program of the electronic device 100 stored in the memory 1005.

[0133] The embodiment of the present invention also proposes an electronic device 100, which includes the anti-drop device of the electronic device 100 as described above. The electronic device 100 may be an electronic device 100 with a built-in battery, such as a camera battery box. In addition to the camera battery box, it can also be widely applied to other various types of electronic devices 100 that are prone to falling, such as a mobile power supply, a handheld electronic device, etc. This embodiment does not limit this.

[0134] An embodiment of the present invention further provides a computer storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the anti-drop method of the electronic device 100 described above are implemented.

[0135] In several embodiments provided in the present application, it should be understood that the disclosed methods and devices can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of modules is only a logical function division. In actual implementation, there may be other division methods. For example, multiple modules or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of devices or modules can be in electrical, mechanical or other forms.

[0136] The modules described as separate components may or may not be physically separated. The components shown as modules may or may not be physical modules, that is, they may be located in one place or distributed to multiple network modules. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0137] In addition, in each embodiment of the present invention, the functional modules can be integrated in a processing module, or each module can exist physically alone, or two or more modules can be integrated in one module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software functional modules.

[0138] If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of this technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer system (which can be a personal computer, a server, or a network system, etc.) to execute all or part of the steps of the methods in each embodiment of the present invention. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks or optical discs that can store program codes.

[0139] The above are only some or preferred embodiments of the present invention. Neither the text nor the drawings can limit the scope of protection of the present invention. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the overall concept of the present invention, or any direct / indirect application in other related technical fields, is included in the scope of protection of the present invention.

Claims

1. A method for anti-drop of an electronic device, characterized in that The electronic device includes a body and an electromagnetic buffer device provided on the outer contour of the body. The electromagnetic buffer device is connected to a buffer member and can drive the buffer member to extend or retract; The anti-drop method includes: Obtaining the status information of the body and determining whether the body drops according to the status information; When the body does not drop, controlling the electromagnetic buffer device to be powered off and closed so that the buffer member is in a retracted state; When the body drops, controlling the electromagnetic buffer device to be powered on and activated so that the buffer member is in an extended state.

2. The anti-drop method of the electronic device according to claim 1, wherein The body is a polyhedron with a plurality of vertices, and the number of the electromagnetic buffer devices is set to be a plurality, and each of the electromagnetic buffer devices is arranged at a vertex of the body; When the body drops, the step of controlling the electromagnetic buffer device to be powered on and activated so that the buffer member is in an extended state includes: Obtaining the dropping attitude of the body; Determining a plurality of impact vertices on the body in the dropping direction that will collide with the impact surface according to the dropping attitude, and controlling the electromagnetic buffer devices located at each of the impact vertices to be powered on and activated, and the electromagnetic buffer devices not located at the impact vertices are powered off and closed or powered on and activated.

3. The anti-drop method of the electronic device according to claim 2, wherein The step of determining a plurality of impact vertices on the body in the dropping direction that will collide with the impact surface according to the dropping attitude, and controlling the electromagnetic buffer devices located at each of the impact vertices to be powered on and activated, and the electromagnetic buffer devices not located at the impact vertices are powered off and closed or powered on and activated includes: Pre-determining the contact situation between each of the impact vertices and the impact surface according to the dropping attitude; When each of the impact vertices does not contact the impact surface simultaneously, during the power-on activation process, differentially power the electromagnetic buffer device at the impact vertex that first contacts the impact surface with a first preset electric energy, and differentially power the electromagnetic buffer device at the impact vertex that contacts the impact surface later with a second preset electric energy, and the second preset electric energy is less than the first preset electric energy.

4. The anti-drop method of the electronic device according to claim 3, wherein After the step of pre-determining the contact situation between each of the impact vertices and the impact surface according to the dropping attitude, the step of determining a plurality of impact vertices on the body in the dropping direction that will collide with the impact surface according to the dropping attitude, and controlling the electromagnetic buffer devices located at each of the impact vertices to be powered on and activated, and the electromagnetic buffer devices not located at the impact vertices are powered off and closed or powered on and activated further includes: When each of the impact vertices contacts the impact surface simultaneously, during the power-on activation process, uniformly power the electromagnetic buffer devices at each of the impact vertices with a third preset electric energy, and the third preset electric energy is less than the first preset electric energy.

5. The anti-drop method of the electronic device according to claim 3, wherein, The step of pre-determining the contact situation between each of the impact vertices and the impact surface according to the dropping attitude includes: Obtaining the angle data of the X, Y, and Z axes of the body during the dropping process according to the dropping attitude; When the angle of any axis among the X, Y, and Z axes is not equal to 0°, it is determined that each of the impact vertices does not contact the impact surface simultaneously; When any of the angles of the X, Y, and Z axes is equal to 0°, it is determined that each of the impact vertices is in contact with the impact surface simultaneously.

6. The anti-drop method of the electronic device according to claim 1, characterized in that, The steps of obtaining the status information of the body and determining whether the body has fallen according to the status information include: Collecting the acceleration data of the body at a preset frequency; When the acceleration data does not exceed a preset value and the duration is less than a preset duration, it is determined that the body has not fallen; When the acceleration data exceeds a preset value and the duration is greater than a preset duration, it is determined that the body has fallen.

7. The anti-drop method of the electronic device according to any one of claims 1-6, characterized in that, The electronic device further includes a super capacitor bank provided on the body, a main power supply and a backup power supply electrically connected to the super capacitor bank, and the super capacitor bank is used to supply power to the electromagnetic buffer device; The anti-drop method further includes: Monitoring the power information of the main power supply and determining whether the main power supply is low on power according to the power information; When the main power supply has sufficient power, controlling the main power supply to supply power to the super capacitor bank; When the main power supply is low on power, controlling the backup power supply to supply power to the super capacitor bank.

8. An anti-drop device for an electronic device, characterized in that, It includes: A memory for storing calculations and programs; A processor for implementing the steps of the anti-drop method of the electronic device according to any one of claims 1-7 when executing the computer program.

9. An electronic device, characterized in that, An anti-drop device including the electronic device according to claim 8.

10. A computer storage medium, characterized in that, A computer program is stored on the computer storage medium, and when the computer program is executed by a processor, the steps of the anti-drop method of the electronic device according to any one of claims 1-7 are implemented.

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