UAV, system and UAV control method

Abstract

The present invention discloses an unmanned aerial vehicle (UAV), a system and a method for controlling a UAV, wherein the UAV comprises a main body, an electrical control component, a battery and a rotor, the top of the main body being open, and the UAV further comprises: a parachute provided with a switch; a metal part located on a path along which the metal part moves; an electrically controlled magnetic part located on a side of the metal part away from the parachute and electrically connected to the battery; and an elastic part, wherein the elastic part is abuttingly connected between the metal part and the electrically controlled magnetic part, and when the elastic part is compressed, the metal part does not contact the switch, and when the elastic part is restored, the metal part contacts the switch; a sensor, wherein the sensor is arranged in the main body and electrically connected to the electrical control component, and is used to detect whether the parachute is arranged in the main body; and an alarm module, wherein the alarm module is arranged in the main body and electrically connected to the electrical control component.

Description

Technical Field

[0001] The present invention belongs to the technical field of unmanned aerial vehicles (UAVs), and in particular, relates to an UAV, a system, and a UAV control method. Background Art

[0002] In recent years, drones have become increasingly popular. Typically, drones are powered by batteries, such as lithium-ion batteries. Lithium-ion batteries offer advantages such as environmental friendliness, long lifespan, and robustness to both high and low temperatures. However, they also pose a risk: battery explosion can cause the drone to crash. Summary of the Invention

[0003] The object of the present invention is to provide a drone that can avoid crashing when a battery explodes.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions to achieve them.

[0005] The present invention provides an unmanned aerial vehicle (UAV) comprising a main body, an electronic control unit, a battery, and a rotor. The electronic control unit and the battery are disposed within the main body and are electrically connected. The rotor is disposed on a side wall of the main body. The top of the main body is open. The UAV further comprises:

[0006] a parachute, the parachute being detachably disposed in the main body and located below the opening and provided with a switch;

[0007] a metal member, the metal member being disposed in the main body and being movable, and the switch being located on a moving path of the metal member;

[0008] an electrically controlled magnetic attraction component, the electrically controlled magnetic attraction component being disposed in the main body and located on a side of the metal component away from the parachute, and being electrically connected to the battery; and

[0009] an elastic member, the elastic member being connected between the metal member and the electrically controlled magnetic member, wherein when the elastic member is compressed, the metal member is not in contact with the switch, and when the elastic member is restored, the metal member is in contact with the switch;

[0010] a sensor disposed in the main body and electrically connected to the electrical control assembly, for detecting whether the parachute is disposed in the main body;

[0011] An alarm module is provided in the main body and is electrically connected to the electric control component.

[0012] In some embodiments of the present application, further comprising:

[0013] A first mounting member is provided in the main body and is located below the opening. A first mounting cavity is provided on a side of the main body facing the opening. The parachute is detachably provided in the first mounting cavity. The sensor is provided in the first mounting cavity. A through hole is further provided on the first mounting member, and the switch passes through the through hole.

[0014] In some embodiments of the present application, further comprising:

[0015] The second mounting member is arranged in the main body and is located below the parachute. The second mounting member is provided with a limiting structure and a guiding structure. The limiting structure is used to limit the movement distance of the metal member. The metal member is movably connected to the guiding structure.

[0016] In some embodiments of the present application, the metal member is in a cover shape and is sleeved on an end of the elastic member close to the switch.

[0017] In some embodiments of the present application, the elastic member includes:

[0018] A mounting post, the mounting post being arranged on a side of the electrically controlled magnetic attraction component facing the metal component;

[0019] A spring is sleeved outside the mounting column.

[0020] In some embodiments of the present application, further comprising:

[0021] The battery shell is sleeved on the outside of the battery and has a hollow structure and is filled with a non-Newtonian fluid.

[0022] In some embodiments of the present application, a heat dissipation pipe connecting the inside and outside of the battery housing is provided on the battery housing.

[0023] In some embodiments of the present application, further comprising:

[0024] A shielding plate is movable relative to the opening and is used to shield or open the opening.

[0025] The present invention also proposes a system comprising:

[0026] A drone, wherein the drone is the drone provided by the present invention; and

[0027] A device is communicatively connected to the drone.

[0028] The present invention also proposes a drone control method, which is applied to the drone provided by the present invention and includes the following steps:

[0029] When a shutdown command is obtained, acquiring data detected by the sensor;

[0030] If the data indicates that the parachute is set in the main body, the alarm module is controlled to issue an alarm message; if the data indicates that the parachute is not set in the main body, a shutdown command is executed.

[0031] Compared with the prior art, the advantages and positive effects of the present invention are:

[0032] (1) When the drone is flying normally, the electrically controlled magnetic component obtains power from the battery to generate magnetic force, which attracts the metal part. At this time, the metal part is not in contact with the switch, and the elastic part is compressed. When the battery explodes during the flight of the drone, the electrically controlled magnetic component loses power and its magnetic force disappears. At this time, the electrically controlled magnetic component cannot attract the metal part. The elastic part resets and provides a force to the metal part to move toward the switch, causing the metal part to move toward the switch and triggering the switch. At this time, the parachute opens, allowing the drone to land safely and preventing the drone from crashing.

[0033] (2) When the drone is shut down normally, if the electric-controlled magnetic attraction part is powered off and its magnetic force disappears, the metal part will mistakenly trigger the switch, thereby causing the parachute to be mistakenly opened. To address this problem, this embodiment also makes the following improvements: the parachute is detachably arranged in the main body. Before the drone is shut down, the parachute can be removed from the main body through the opening, thereby preventing the metal part from mistakenly triggering the switch, thereby preventing the parachute from being mistakenly opened; secondly, the sensor is set to detect whether the parachute is set in the main body. When the drone receives a shutdown command, if the parachute is set in the main body, the alarm module is controlled to issue an alarm message to remind the user to remove the parachute from the main body. If the parachute is not set in the main body, the shutdown command is executed.

[0034] Other features and advantages of the present invention will become more apparent after reading the detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0036] Figure 1 1 is a structural diagram of the UAV proposed in the present invention;

[0037] Figure 2is a cross-sectional view of some parts of the drone proposed by the present invention;

[0038] Figure 3 yes Figure 2 A view from another angle;

[0039] Figure 4 This is an exploded view of some parts of the drone proposed by the present invention;

[0040] Figure 5 This is a schematic diagram of the structure of the opening of the shielding plate in the UAV proposed by the present invention;

[0041] Figure 6 is a schematic diagram of the system proposed by the present invention;

[0042] Figure 7 It is a flow chart of the method proposed in the present invention.

[0043] In the figure, 100, main body; 101, opening; 102, baffle; 200, battery; 201, battery casing; 202, battery foam; 203, heat pipe; 300, rotor; 400, parachute; 401, switch; 402, first mounting part; 403, through hole; 500, metal part; 501-second mounting part; 502, slide; 503, limiting protrusion; 600, electric-controlled magnetic part; 700, elastic part; 701, mounting column; 702, spring; 800, sensor. DETAILED DESCRIPTION

[0044] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0045] It should be noted that, in the description of the present invention, terms such as "upper", "lower", "top", "bottom", "inside", "outside", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0046] Furthermore, it should be noted that, in the description of this invention, unless otherwise expressly specified or limited, the terms "mounted" and "connected" should be understood broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this invention based on the specific circumstances.

[0047] See also Figures 1 to 5 FIG. 1 is an example of a drone according to the present embodiment.

[0048] In this embodiment, the drone includes a main body 100, electronic components (not shown), a battery 200, and rotors 300. The electronic components and the battery 200 are disposed within the main body 100 and are electrically connected. The rotors 300 are disposed on the side walls of the main body 100. The main body 100 is used to accommodate the electronic components and the battery 200. The electronic components may include a circuit board, a memory and a processor disposed thereon, etc., for storing data and executing programs. They may be conventional single-chip electronic components in the prior art. The battery 200 is used to supply power to the electronic components, and the rotors 300 are used to provide lift for the drone. To prevent the drone from crashing in the event of an explosion of the battery 200, this embodiment further improves the drone as follows:

[0049] The main body 100 has an opening 101 at the top.

[0050] The drone further comprises: a parachute 400, a metal part 500, an electrically controlled magnetic part 600, an elastic part 700, a sensor and an alarm module.

[0051] The parachute 400 is detachably disposed in the main body 100 and is located below the opening 101 , and is provided with a switch 401 .

[0052] The metal member 500 is disposed in the main body 100 and is movable, and the switch 401 is located on a moving path of the metal member 500 .

[0053] The electrically controlled magnetic component 600 is disposed in the main body 100 and is located on a side of the metal component 500 away from the parachute 400 , and is electrically connected to the battery 200 .

[0054] The elastic member 700 is connected between the metal member 500 and the electrically controlled magnetic member 600 . When the elastic member 700 is compressed, the metal member 500 is not in contact with the switch 401 . When the elastic member 700 is restored, the metal member 500 is in contact with the switch 401 .

[0055] The sensor 800 is disposed in the main body 100 and is electrically connected to the electronic control unit to detect whether the parachute is disposed in the main body 100.

[0056] The alarm module (not shown in the figure) is disposed in the main body 100 and is electrically connected to the electrical control component.

[0057] In this embodiment, the parachute 400 is triggered by the switch 401, that is, the parachute 400 is opened when the switch 401 is pressed; the electrically controlled magnetic attraction component 600 can be an electromagnetic relay, an electromagnet, etc., which generates magnetic force when energized, and the metal component 500 can be adsorbed by the magnetic force, so that the elastic component 700 is compressed; the elastic component 700 can be a spring 702, a shrapnel or a structure made of elastic material; the sensor 800 can be a metal detection sensor, an ultrasonic sensor, an infrared sensor, a radar sensor or a contact sensor; the alarm module can be a buzzer or a wireless module. If the alarm module is set to a buzzer, the buzzer will sound when an alarm is required. If the alarm module is set to a wireless module, when an alarm is required, the drone sends an alarm message to an external device through the wireless module.

[0058] The switch 401 is usually located on the side wall or bottom wall of the parachute 400. When the switch 401 is located on the side wall of the parachute 400, such as the left wall, the metal part 500 can be set on the left side of the parachute 400, and the metal part 500 can be configured to be movable in the left and right directions, and the switch 401 can be triggered during its movement; when the switch 401 is located on the bottom wall of the parachute 400, the metal part 500 can be set below the parachute 400, and the metal part 500 can be configured to be movable in the up and down directions, and the switch 401 can be triggered during its movement.

[0059] In this embodiment, when the drone is flying normally, the electrically controlled magnetic component 600 obtains electricity from the battery 200 to generate magnetic force, which attracts the metal component 500. At this time, the metal component 500 is not in contact with the switch 401, and the elastic component 700 is compressed; when the battery 200 explodes during the flight of the drone, the electrically controlled magnetic component 600 is powered off and its magnetic force disappears. At this time, the electrically controlled magnetic component 600 cannot attract the metal component 500, and the elastic component 700 resets to provide a force to the metal component 500 to move toward the switch 401, causing the metal component 500 to move toward the switch 401 and triggering the switch 401. At this time, the parachute 400 opens, allowing the drone to land safely and preventing the drone from crashing.

[0060] The switch 401 is usually located on the side wall or bottom wall of the parachute 400. When the switch 401 is located on the side wall of the parachute 400, such as the left wall, the metal part 500, the elastic part 700 and the electrically controlled magnetic part 600 are arranged in sequence from right to left on the left side of the switch 401; when the switch 401 is located on the bottom wall of the parachute 400, the metal part 500, the elastic part 700 and the electrically controlled magnetic part 600 are arranged in sequence from top to bottom below the switch 401.

[0061] In this embodiment, when the drone is normally shut down, if the electric-controlled magnetic element 600 loses power and its magnetic force disappears, the metal element 500 may mistakenly trigger the switch 401, thereby causing the parachute 400 to be mistakenly deployed. To address this problem, this embodiment further makes the following improvements: the parachute 400 is detachably mounted within the main body 100. Before the drone is shut down, the parachute 400 can be removed from the main body 100 through the opening 101, thereby preventing the metal element 500 from mistakenly triggering the switch 401 and thereby preventing the parachute 400 from being mistakenly deployed. Secondly, a sensor 800 is provided to detect whether the parachute 400 is mounted within the main body 100. When the drone receives a shutdown command, if the parachute 400 is mounted within the main body 100, the alarm module is controlled to issue an alarm message, reminding the user to remove the parachute from the main body. If the parachute 400 is not mounted within the main body 100, the shutdown command is executed.

[0062] In this embodiment, the parachute 400 and the main body 100 can be detachably connected by means of a threaded structure, a snap-fit ​​structure, a quick-release structure, or the like.

[0063] As a preferred embodiment, Figure 2 、 3 As shown, the drone also includes: a first mounting member 402, which is arranged in the main body 100 and is located below the opening 101, and a first mounting cavity is opened on the side facing the opening 101, the parachute 400 is detachably arranged in the first mounting cavity, the sensor 800 is arranged in the first mounting cavity, and a through hole 403 is further opened on the first mounting member 402, and the switch 401 passes through the through hole 403.

[0064] In this embodiment, the first mounting member 402 may be integrally formed with the main body 100 , or may be an independent component and fixed in the main body 100 by welding, screws, or the like.

[0065] The first mounting member 402 may be in the shape of a cylindrical structure, with one side thereof facing the opening 101 open to form the first mounting cavity, and the through hole 403 is formed on the wall thereof according to the position of the switch 401 .

[0066] In this embodiment, if the sensor 800 is a metal detection sensor, since the parachute 400 contains metal components, when the parachute 400 is placed in the first mounting cavity, the metal components inside will be detected, thereby determining that the parachute 400 is placed in the main body 100, and vice versa. If the sensor 800 is an ultrasonic sensor, infrared sensor, or radar sensor, it can emit ultrasonic, infrared, or radar waves, and different signals will be reflected when the parachute 400 is placed in the first mounting cavity and when it is not placed in the first mounting cavity, thereby determining whether the parachute is placed in the main body 100. If the sensor 800 is a contact sensor, the parachute 400 will be triggered when it is placed in the first mounting cavity, thereby determining that the parachute 400 is placed in the main body 100, and vice versa.

[0067] As a preferred embodiment, Figure 2 、 3 As shown, the UAV also includes: a second mounting member 501, which is arranged in the main body 100 and is located below the parachute 400, and is provided with a limiting structure and a guiding structure. The limiting structure is used to limit the movement distance of the metal member 500, and the metal member 500 is movably connected to the guiding structure.

[0068] In this embodiment, the second mounting member 501 can be integrally formed with the main body 100, or it can be an independent component and fixed in the main body 100 by welding, screws, etc.; in addition, the second mounting member 501 can be integrally formed with the first mounting member 402, or the two can be independent components; when the switch 401 is located on the side wall of the parachute 400, such as the left wall, the second mounting member 501 can be set on the left side of the first case, and when the switch 401 is located on the bottom wall of the parachute 400, the second mounting member 501 can be set on the lower side of the first case.

[0069] The shape of the second mounting member 501 can be a cylindrical structure, and a second mounting cavity is formed inside the second mounting member 501 for accommodating the metal member 500. A slide 502 can be provided on the inner wall of the second mounting member 501 to form the guide structure, and the metal member 500 is partially embedded in the slide 502. The two are slidably connected, thereby stabilizing the movement trajectory of the metal member 500; a limiting protrusion 503 can be provided on the end of the second mounting member 501 facing the parachute 400 to form the limiting structure, and the metal member 500 is partially restricted to the side of the limiting protrusion 503 away from the parachute 400, thereby limiting the movement distance of the metal member 500. When the parachute 400 is removed, the metal member 500 can be prevented from falling out of the opening 101.

[0070] As a preferred embodiment, the metal member 500 is in a cover shape, and the metal member 500 is sleeved on an end of the elastic member 700 close to the switch 401. The cover shape of the metal member 500 facilitates the connection between the metal member 500 and the elastic member 700.

[0071] As a preferred embodiment, Figure 2 、 3 As shown, the elastic member 700 includes a mounting post 701 and a spring 702 .

[0072] The mounting post 701 is disposed on a side of the electrically controlled magnetic component 600 facing the metal component 500 .

[0073] The spring 702 is sleeved outside the mounting post 701 .

[0074] As a preferred embodiment, Figure 4 As shown; further comprising: a battery housing 201;

[0075] The battery housing 201 is sleeved on the outside of the battery 200 and has a hollow structure filled with a non-Newtonian fluid.

[0076] Non-Newtonian fluids are fluids that do not satisfy Newton's law of viscosity. They have the characteristic that viscosity increases with increasing shear force and have good thermal stability.

[0077] In this embodiment, when the battery 200 explodes, the impact force generated by the explosion will increase the viscosity of the non-Newtonian fluid in the battery housing 201 and make it solid. The non-Newtonian fluid can absorb most of the impact force generated by the explosion, thereby reducing the damage caused by the impact force of the explosion to other structures in the drone.

[0078] In addition, a battery foam 202 may be provided between the battery 200 and the battery housing 201 to protect the battery 200 .

[0079] As a preferred embodiment, Figure 2 、 3 As shown, the housing is provided with a heat dissipation pipe 203 communicating with the inside and outside thereof.

[0080] In this embodiment, when the drone is in use, the heat generated by the battery 200 can be dissipated through the heat dissipation pipe 203 .

[0081] The heat dissipation pipe 203 may be integrally formed with the housing; or after the housing is processed, holes may be drilled on the inner and outer sides of the battery housing 201, and the heat dissipation pipe 203 may be fixed between the holes on the inner and outer sides, and the connection between the heat dissipation pipe 203 and the battery housing 201 may be sealed.

[0082] As a preferred embodiment, Figure 5 As shown, a shielding plate 102 is movable relative to the opening 101 and is used to shield or open the opening 101.

[0083] In this embodiment, the shielding plate 102 can be fixed to the opening 101, or the shielding plate 102 can be fixed to the top of the parachute 400; the shielding plate 102 is movable relative to the opening 101, and the shielding plate 102 can be slidable relative to the opening 101, or the shielding plate 102 can be rotatable relative to the opening 101.

[0084] See also Figure 6 The figure shows an embodiment of the system of this embodiment.

[0085] In this embodiment, the system includes a drone and a device, the drone is the drone provided in this embodiment, and the device is communicatively connected with the drone.

[0086] In this embodiment, the device may be a device for controlling the flight of the drone, and the two may be connected to each other via WiFi, Bluetooth, or the like for data transmission therebetween.

[0087] See also Figure 7 The figure shows an embodiment of the method of this embodiment.

[0088] In this embodiment, the method is applied to the drone provided in this embodiment, and the method includes the following steps:

[0089] S1: When a shutdown command is obtained, data detected by the sensor is obtained.

[0090] In this embodiment, a physical button, a virtual button, a touch screen, etc. can be set on the drone for inputting a shutdown command to the drone, and a shutdown command can also be sent to the drone through an external device.

[0091] S2: If the data indicates that the parachute is set in the main body, the alarm module is controlled to issue an alarm message; if the data indicates that the parachute is not set in the main body, a shutdown command is executed.

[0092] When the drone is shut down, if the electric-controlled magnetic component is powered off and the parachute is not removed, the parachute may be triggered by mistake. Therefore, in this embodiment, when a shutdown command is obtained, if it is indicated that the parachute is set in the main body, the alarm module is controlled to issue an alarm message to remind the user to remove the parachute from the main body; if the parachute is not set in the main body, the shutdown command is executed.

[0093] In this embodiment, the issuing of the alarm information may be the sounding of a buzzer, or the issuing of the alarm information may be the sending of the alarm information to an external device.

[0094] It should be pointed out that the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A drone comprising a main body, an electronic control unit, a battery, and a rotor, wherein the electronic control unit and the battery are disposed in the main body and are electrically connected, and the rotor is disposed on a side wall of the main body, characterized in that: The top of the main body is open, and the drone further includes: a parachute, the parachute being detachably disposed in the main body and located below the opening and provided with a switch; a metal member, the metal member being disposed in the main body and being movable, and the switch being located on a moving path of the metal member; an electrically controlled magnetic attraction component, the electrically controlled magnetic attraction component being disposed in the main body and located on a side of the metal component away from the parachute, and being electrically connected to the battery; and an elastic member, the elastic member being connected between the metal member and the electrically controlled magnetic member, wherein when the elastic member is compressed, the metal member is not in contact with the switch, and when the elastic member is restored, the metal member is in contact with the switch; a sensor disposed in the main body and electrically connected to the electrical control assembly, for detecting whether the parachute is disposed in the main body; An alarm module is provided in the main body and is electrically connected to the electric control component.

2. The drone according to claim 1, characterized in that Also includes: A first mounting member is provided in the main body and is located below the opening. A first mounting cavity is provided on a side of the main body facing the opening. The parachute is detachably provided in the first mounting cavity. The sensor is provided in the first mounting cavity. A through hole is further provided on the first mounting member, and the switch passes through the through hole.

3. The drone according to claim 2, characterized in that Also includes: The second mounting member is arranged in the main body and is located below the parachute. The second mounting member is provided with a limiting structure and a guiding structure. The limiting structure is used to limit the movement distance of the metal member. The metal member is movably connected to the guiding structure.

4. The drone according to claim 1, wherein: The metal piece is in a cover shape and is sleeved on one end of the elastic piece close to the switch.

5. The drone according to claim 1, wherein: The elastic member comprises: A mounting post, the mounting post being arranged on a side of the electrically controlled magnetic attraction component facing the metal component; A spring is sleeved outside the mounting column.

6. The drone according to claim 1, wherein: Also includes: The battery shell is sleeved on the outside of the battery and has a hollow structure and is filled with a non-Newtonian fluid.

7. The drone according to claim 6, characterized in that: The battery shell is provided with a heat dissipation pipe communicating with the inside and outside of the battery shell.

8. The drone according to claim 1, wherein: Also includes: A shielding plate is movable relative to the opening and is used to shield or open the opening.

9. A system, characterized in that: include: A drone, wherein the drone is the drone according to any one of claims 1 to 8; as well as A device is communicatively connected to the drone.

10. A method for controlling a drone, characterized in that: The method according to any one of claims 1 to 8 comprises the following steps: When a shutdown command is obtained, acquiring data detected by the sensor; If the data indicates that the parachute is set in the main body, the alarm module is controlled to issue an alarm message; if the data indicates that the parachute is not set in the main body, a shutdown command is executed.

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