WO2020116826A1

WO2020116826A1 - Fall prevention device for drone

Info

Publication number: WO2020116826A1
Application number: PCT/KR2019/015910
Authority: WO
Inventors: 도승현
Original assignee: 도승현
Priority date: 2018-12-03
Filing date: 2019-11-20
Publication date: 2020-06-11
Also published as: KR102159302B1; KR20200067046A

Abstract

The present invention relates to a fall prevention device for a drone, for preventing damage from an impact caused by falling of an unmanned aerial vehicle such as a drone, wherein the fall prevention device is coupled to a drone which is an unmanned aerial vehicle capable of aerial flight via radio waves of a remote controller manipulated by a user and comprises: a parachute module; and a control unit for controlling operation of the parachute module and the drone by intercommunicating with a central control center to transmit and receive information about a flight path of the drone, risk factors, and flight status. Thus, the present invention relates to the fall prevention device for a drone that allows a drone to fall safely such that damage to people and property may be minimized even when the drone has a breakdown during flight or falls due to an external factor.

Description

[Revision 09.12.2019 under Rule 26] Fall Prevention Device for Drones

The present disclosure relates to a fall protection device for a drone for preventing damage due to impact when a drone such as a drone falls. Specifically, the present disclosure relates to a fall protection device for drones that can safely fall and minimize damage to human life and property even if the drone breaks down during flight or falls due to external factors.

Unmanned aerial vehicles such as drones have been developed for military use in the early 20th century and have been competitively developed in many countries. Recently, as the global interest in drones has increased, the penetration rate of drones is rising rapidly.

Accordingly, drones for various purposes, such as commercial drones such as toy drones and racing drones, commercial drones such as shooting drones, agricultural drones, and police drones, are used. A drone is a flying vehicle that is remotely controlled from the ground without humans boarding the aircraft, and receives propulsion from the driving motor to generate thrust as several propellers are rotated so that the aircraft rises and flies. The user controls the propeller's motion to fly the drone as intended in the air.

Drones must be regulated by each country.

For drones, drones are regulated differently according to the weight of the Korean Air Law. Drones weighing less than 150 kg are treated as unmanned aerial vehicles, and more than that are classified as unmanned aerial vehicles. If you want to use a drone weighing 12kg or more in Korea, you must report it to your local air agency, and you must control it only within the scope of the user's eyes.You must follow safety rules such as no-fly zones or prohibited dropping objects.

In the United States, drones must be operated in accordance with the Federal Aviation Administration (FAA) drone regulations. The FAA imposes the following restrictions on drones. Regulations limit the weight of drones to a maximum of 55 pounds, must be maintained and operated within the operator's or observer's field of view, operated only during the daylight hours between sunrise and sunset, and small UAV pilots must be 17 years of age or older and may be operated by the Federal Aviation Administration. This includes completing knowledge and passing tests, inspecting the UAV before flying for safe flight, and certifying and registering the aviation's durability. This U.S. regulation is due to the rapid increase in safety accidents due to the increasing trend of drone users.

In Europe, the drone regulations of the European Union Aviation Safety Agency (EASA) are standard. In Europe, drones weighing less than 25kg can fly freely without compromising privacy, and are operating weaker regulations than the United States. However, drones are strictly prohibited within 50m around people and vehicles, France completely prohibits night flights and uses in the city are trained, and the UK only allows drones under 20kg to be used by the public. Therefore, each country has a separate regulation considering safety.

As mentioned above, due to the rapid increase in the use of drones, related regulations are being strengthened because of the risk of safety accidents caused by drones. However, compared to the rapid growth and development of drones, the development of safety-related additional devices is relatively weak. In fact, drones weighing hundreds of grams to several kilograms are flying around people's lives, and drones used for public purposes will also be used around people's lives in the future.

When these drones suddenly fall to the ground due to the user's inexperienced control or external factors, not only are the economic damages caused by the damage of the expensive drones themselves, but they also accelerate at falling at high altitudes, causing a large human accident by hitting the body of a nearby passerby. There is a fear that it may occur, and a serious problem occurs that the facility falls and is damaged.

Accordingly, various techniques to prepare for a drone fall are applied to drones. For example, a drone uses a parachute to reduce the fall speed and reduces damage, and a drone uses an air cushion in the event of a drone fall. The technology to reduce the damage of the drone, the technology to warn of the fall by making a sound when the drone crashes, the technology that survives by converting the motor into a quadcopter in the case of 1 or 2 failures of the hexacopter, and the drone in the case of a quadcopter The technology that gradually falls while rotating is applied, and Patent Document 1 (KR 10-2014-0038495 A) describes safe landing in an uncontrollable state due to an electronic error or power loss due to an air vehicle abnormality or a blast when operating a rotating drone. A pack and a system are disclosed, and a safety landing pack is a technology that is attached to the top of a vehicle and operates at a ground transmitter.

However, multicopter drones are more likely to suddenly fall by an external environment such as a blast even in a state in which power is not lost and in the absence of an electronic error, and a fall in a state in which power is not lost and without an electronic error is rather There is a limitation that it is difficult to prepare for a drone crash because it can cause more serious damage to the drone's aircraft.

In order to solve the above problems, the present disclosure is coupled to be detachably attached to a drone, and includes a parachute module, which is composed of a coupling part, a sensing part, and a parachute part, and coupled to each other. By communicating with the center, the drone's flight path and the control unit that receives the dangerous elements can be configured to immediately identify the drone's crash due to the user's inexperience and external impact, as well as the drone's own problems. And it is an object to provide a fall prevention device for drones that can prevent damage to humans and objects due to secondary damage caused by a falling drone.

In addition, it is composed of a parachute module that is divided into a coupling part, a sensing part, and a parachute part to reduce replacement costs due to partial failure, and it is possible to configure the coupling part so that it can be combined with all existing drones. Another object is to provide a fall protection device for high drones.

In order to achieve the above object, the present disclosure is a fall prevention device for a drone that is connected to a drone having a plurality of rotor blades spaced apart from the main body, the coupling portion detachably connected to the drone, and the coupling portion, It characterized in that it comprises a parachute having a parachute for preventing the fall of the drone.

In addition, the coupling portion is characterized in that it comprises a coupling plate disposed on the upper portion of the body, and a coupling leg extending toward the rotor blade from the coupling plate.

In addition, the coupling portion is characterized in that it further has a joint structure for pivotably connecting the coupling legs to the coupling plate.

In addition, the coupling leg is characterized by having a length adjustment structure.

In addition, the coupling portion is characterized in that it further comprises an auxiliary leg having a height adjustment structure for adjusting the height of the parachute module.

In addition, it characterized in that it further comprises an expansion portion of a three-dimensional figure connecting a plurality of parachutes to the engaging portion.

In addition, it is characterized in that it further comprises at least one of a control unit for controlling the operation of the parachute, and a control unit for controlling the operation of the parachute and disposed on the operator's control unit for controlling the drone.

In addition, it is characterized in that it further comprises a sensing unit that is connected to the coupling unit, and includes a sensor unit for sensing a fall state of the drone, and a blocking fuse to cut off the main power of the drone to stop the operation of the rotor blade.

In addition, the parachute unit includes a parachute container and injection means, the parachute container is coupled to the upper side of the sensing unit and includes a storage hole capable of having a parachute therein and a coupling protrusion preventing the ejected parachute from being separated from the drone. It is characterized by.

In addition, the expansion portion is characterized in that it is made of a triangular pyramid or quadrangular pyramid shape so that a plurality of parachute parts are coupled to each side.

The present disclosure, even if the drone suddenly falls, can immediately respond to minimize damage to the drone itself, and provides an effect of preventing secondary damage to humans and objects that may be caused by the falling drone. .

In addition, the present disclosure includes a parachute module, which is divided and combined, so that only a defective or defective part can be replaced, thereby reducing the cost of maintenance, and it can be combined with all existing drones to utilize it. It provides another effect that can increase sex.

1 is a block diagram showing a fall prevention device for a drone according to the present disclosure.

Figure 2 is an exploded perspective view showing a fall prevention device for a drone according to the present disclosure.

Figure 3 is a cross-sectional view showing a parachute of the fall prevention device for drones according to the present disclosure.

Figure 4 is an exemplary view showing a parachute coupled to the expansion portion and the expansion portion of the fall protection device for drones according to the embodiment.

Figure 5 is an exemplary view showing a form in which the fall protection device for a drone according to an embodiment is coupled to the drone.

Figure 6 is a block diagram showing a fall prevention device for a drone according to the present disclosure.

7 is a perspective view schematically showing another embodiment of the fall prevention device for a drone shown in FIG. 1.

Hereinafter, preferred embodiments will be described in detail with reference to the accompanying drawings so that a person having ordinary knowledge belonging to the same technical field can easily implement the present invention.

The present disclosure is coupled to a drone (D), which is an unmanned flying device capable of aerial flight through wireless propagation of a remote controller through a user's manipulation, to prevent a drone from falling when the drone (D) falls, preventing damage due to impact The apparatus, the fall prevention device for a drone of the present disclosure, as shown in Figures 1 to 6, a parachute module that can be composed of a coupling unit 110, the sensing unit 120 and the parachute unit 130 ( 100) and the control unit 200.

The parachute module 100 may be detachably coupled to any part of the drone (D), in order to effectively unfold the parachute (P) in response to the falling drone (D) of the drone (D) It is preferable that the parachute module 100 is coupled to the upper portion.

In addition, the control unit 200 may be provided in any part of the parachute module 100, and communicates with the central control center (not shown) to the flight path, risk factors and flight status of the drone (D). It may serve to control the operation of the parachute module 100 and the drone (D) by transmitting and receiving information about.

According to an embodiment of the present disclosure, the parachute module 100 may be composed of a coupling unit 110, a sensing unit 120, and a parachute unit 130, as shown in FIG. Coupling unit 110 may be coupled to be detachable to any part of the drone (D).

According to an embodiment of the present disclosure, the coupling portion 110 is coupled to be detachably attached to the top of the drone so that the sensing portion 120 is coupled to the upper side of the plate-shaped coupling plate 111 and the drone ( A plurality of coupling legs 112 provided in the coupling plate 111 so as to be respectively coupled to the number of rotor blades RW that are provided in D) and generate rotational force so that the drone D can fly. ).

At this time, the coupling plate 111 may be provided with a coupling means 113, the coupling means 113 is formed of a long bolt extending upward from the upper surface of the coupling plate 111 and a nut corresponding thereto The coupling part 110 and the sensing part and the parachute part 130 may be sequentially coupled, but the present invention is not limited thereto, and the coupling grooves (not shown) and fitting parts (not shown) or coupling couplers corresponding to each other Various methods can be selectively used as long as it is an easy method for sequentially combining and separating the sensing unit 120 and the parachute unit 130 above the coupling plate 111.

In addition, the coupling portion 110 may further have a joint structure that pivotably connects the coupling leg 112 to the coupling plate 111. The coupling leg 112 may be rotated based on at least one axis. Thereby, the angle of the coupling leg 112 is adjustable in correspondence with the rotor blade part RW. Here, the joint structure includes a universal joint or a hinge structure.

This is, the rotor blades (RW) provided in the drone (D) is generally used because the number and position of the various combinations of the coupling portion 110, the position for the coupling can be changed because the rotor blade (RW) It is to be possible to increase the usability by being applicable to all drones (D) by allowing the angle of the coupling legs 112 of the coupling portion 110 coupled to) to be varied.

Meanwhile, the extending direction of each of the four engaging legs 112 may be disposed past the center of the engaging plate 111.

In addition, the hinges of the four coupling legs 112 may be arranged symmetrically with respect to the origin of the center of the coupling plate 111.

According to an embodiment of the present disclosure, the sensing unit 120 may be provided on the upper side of the coupling unit 110, sensing the flight state of the drone (D), and sensing information to the control unit 200 ).

At this time, the sensing unit 120 may be composed of a case 121, a sensor unit 122 and a main power unit 123.

The case 121 is coupled to the upper side of the coupling portion 110 through the coupling means 113, the inside is hollow can form the outer shape of the sensing portion 120.

In this case, the case 121 may be formed in various shapes corresponding to the shape formed by the coupling plate 111 of the coupling portion 110.

That is, the coupling plate 111 may be formed of a plate having various shapes such as a triangle, a square, a circle, or an oval, and the sensing unit 120 coupled by the coupling means 113 formed on the coupling plate 111 ) Case 121 may also be formed in a triangular prism, quadrangular prism, or circular prism shape corresponding to the shape of the coupling plate 111.

In addition, the sensor unit 122 may be provided inside the case 121, it is determined whether the drone (D) falls due to the influence of the external environment or its own defect of the drone (D). So that it can be made of at least one or a combination of two or more of the acceleration sensor, gyro sensor, vibration sensor, shock sensor.

The information about the flight status of the drone D measured by the sensor unit 122 can be transmitted to the controller 200 so that the drone D can be responded to immediately.

In addition, the main power unit 123 serves to supply power required to the sensor unit 122 and the parachute unit 130, and includes a charging unit (not shown) to charge the power that has been charged in advance. It can be supplied to the unit 122 and the parachute unit 130, but is not limited thereto, and the sensor unit is lightweight and light to prevent a situation in which the driving of the sensor unit 122 and the parachute unit 130 becomes impossible due to insufficient charge. A battery capable of sufficiently supplying electric power required for driving the 122 and the parachute unit 130 may be used.

In addition, the sensing unit 120 may be provided inside the case 121, may further include a blocking fuse 124 that can cut off the main power of the drone (D) depending on the situation.

That is, by further providing the blocking fuse 124, the operation of the rotor blade RW is stopped due to a defect in the drone D itself, and thus an external environmental element or a component other than the rotor blade RW When the main power of the drone (D) is cut off when it falls due to a defect, the parachute (P) that unfolds when the drone (D) falls is wound or entangled in the rotor blade (RW) to prevent the drone (D) from falling. This is to prevent the inability to respond.

According to an embodiment of the present disclosure, the control unit 200 may be provided at any part of the sensing unit 120, and the sensing unit (so that the measurement information of the sensing unit 120 can be smoothly transmitted. 120) may be provided together inside the case 121.

As described above, the sensor unit 122, the main power unit 123, the blocking fuse 124, and the control unit 200 are provided together inside the case 121, thereby causing fine dust to be blown by rain, snow, or wind, or The sensor unit 122, the main power unit 123, the blocking fuse 124, and the control unit 200 may be prevented from being damaged by an external environment such as debris or impact, so that they can be operated smoothly.

According to an embodiment of the present disclosure, the parachute unit 130 is provided on the upper side of the sensing unit 120, it can be combined with the sensing unit 120 by the coupling means 113, Figure 3 As illustrated, a parachute P that is ejected and unfolded according to the control signal of the control unit 200 is provided therein, and may be composed of a parachute container 131 and an injection means 132.

At this time, the parachute container 131 may be coupled to the upper side of the sensing unit 120, a storage hole 131a may be formed to be provided with a parachute therein, the case of the sensing unit 120 As in the case of 121, it forms an external shape of the parachute part 130, and may have a triangular prism, a quadrangular prism, or a hemispherical shape corresponding to the shape formed by the coupling plate 111 or the sensing part 120.

In addition, the injection means 132 may be provided inside the storage hole (131a), when it is determined that the drone (D) is crashed, the parachute (P) by the control signal of the control unit 200 ) Can be injected to the outside.

According to an embodiment of the present invention, the parachute P provided in the inside of the storage hole 131a is injected into the drone D while the parachute P provided inside the storage hole 131a is injected by the injection means 132. ) And one or more coupling protrusions 131b may be formed to prevent separation.

That is, by allowing the plurality of wires W connected to the parachute P to be coupled to the coupling protrusion 131b, the parachute P unfolded when the drone D falls, does not deviate from the drone D. Without being fixed, the drone (D) can safely fall, and a plurality of engaging projections (131b) are formed to prevent the wires (W) from tangling with each other, and the plurality of wires (W) are divided into a fixed number. Can be combined.

According to an embodiment of the present disclosure, the parachute container 131 is a driving motor that is opened and closed according to a control signal of the control unit 200 so that the parachute (P) can be smoothly ejected from the parachute unit 130 to the outside. An opening/closing door 131c having a 131d may be further included, and the storage hole 131a may be opened to the outside while the opening/closing door 131c is opened.

In addition, the parachute module 100, as shown in Figure 4, is coupled to the upper side of the sensing unit 120, the three-dimensional expansion unit 140 to allow a plurality of the parachute unit 130 can be coupled ) May be further included. Preferably, the extension 140 may have a triangular pyramid or quadrangular pyramid shape.

That is, it is to enable the plurality of parachute parts 130 to be combined according to the weight or size of the drone D to which the fall prevention device A is to be coupled, and the expansion part 140 having a triangular pyramid or quadrangular pyramid shape ) By combining a plurality of the parachute unit 130 on each side, it is possible to increase the stability according to the weight or size of the falling drone (D).

According to an embodiment of the present disclosure, the power supplied from the main power unit 123 provided in the sensing unit 120 to the parachute unit 130 is insufficient as the number of the parachute units 130 increases. In order to prevent falling, an auxiliary power unit 141 is provided inside the expansion unit 140 to add power required to the plurality of parachute units 130 coupled to the outer surface of the expansion unit 140. The main power unit 123 may be assisted by supplying power to the power supply.

By providing the present disclosure configured as described above, even if the drone (D) suddenly falls, it is possible to immediately respond to minimize damage to the drone (D) itself, and the lifespan that can be generated by the falling drone (D) and It has the effect of preventing secondary damage to objects.

In addition, by configuring the parachute module 100, which is divided and combined, it is possible to replace only the defective or defective parts, thereby reducing the cost of maintenance, and can be combined with all existing drones (D). There is another effect that can increase its usability.

Referring to FIG. 7, the coupling leg 112 according to another embodiment of the present disclosure may have a length-adjustable length adjustment structure. Commercially available drones have different separation distances between the main body D1 and the rotor blades RW. Due to the length-adjustable structure of the coupling leg 112, the fall protection device for drones of the present disclosure is applicable to various drones. That is, the end of the coupling leg 112 may be directly or indirectly connected to the rotating shaft of the rotor blade part RW, or may be disposed between the rotor blade part RW and the main body D1.

In addition, the coupling portion 110 according to another embodiment of the present invention may further include an auxiliary leg (300). When the end of the coupling leg 112 is disposed between the main body D1 and the rotor blade part RW according to the shape of the drone, the auxiliary leg 300 may support the coupling leg 112. That is, the auxiliary leg 300 extends from the coupling leg 112 to the lower portion of the coupling leg 112. Meanwhile, the coupling unit 110 may further include a fixing means 310 connected to the coupling leg 112 or the auxiliary leg 300. The fixing means 310 can stably fix the auxiliary leg 300 or the coupling leg 112 to the drone D.

In addition, the auxiliary leg 300 may have a structure for adjusting its height (length). Commercially available drones D have various shapes of the main body D1. The auxiliary leg 300 may adjust the height of the parachute module 100 or the coupling plate 111 according to the shape of the drone D or the main body D1.

Therefore, the fall prevention device for drones (A) according to the present disclosure can be universally mounted to various shapes of commercially available drones.

On the other hand, the fall prevention device for a drone according to another embodiment of the present disclosure is a control unit 200 connected to the coupling unit 110 and an auxiliary control unit (not shown) arranged on a user's control unit (not shown) for adjusting the drone D City) may further include at least one. The control unit 200 connected to the coupling unit 110 may receive the fall state detection signal of the drone D by the sensing unit 120 to control the operation of the parachute unit 130. The user who controls the drone D may manually control the operation of the parachute unit 130 through an auxiliary control unit (not shown).

The terms and words used in the present specification and claims described above should not be construed as being limited to ordinary or lexical meanings, and the present disclosure is not limited to the concept of terms in order to best describe their invention in the best way. It should be interpreted as meaning and concept consistent with the technical idea of the present disclosure based on the principle that it can be defined as such.

Therefore, the configuration shown in the drawings and examples described in this specification is only one of the most preferred embodiments of the present disclosure, and does not represent all of the technical spirit of the present disclosure, and can be replaced at the time of application. It should be understood that there may be various equivalents and variations.

Claims

In the drone fall prevention device connected to the drone having a plurality of rotor blades spaced apart from the main body,

A coupling part detachably connected to the drone; And

A fall prevention device for a drone that is connected to a coupling part and includes a parachute part having a parachute for preventing a drone from falling.
According to claim 1,

The coupling part,

A coupling plate disposed on an upper portion of the main body; And

Fall prevention device for a drone comprising a coupling leg extending from the coupling plate toward the rotor blade.
According to claim 2,

The coupling part,

Fall fall prevention device for drones further having a joint structure that connects the coupling legs to the coupling plate so that it can pivot.
According to claim 2,

Falling device for drones having a length-adjustable bridge.
According to claim 2,

Falling prevention device for a drone further comprising an auxiliary leg having a height adjustment structure for adjusting the height of the parachute module.
According to claim 1,

Fall apparatus for drones further comprising a three-dimensional expansion portion for connecting a plurality of parachutes to the coupling portion.
According to claim 1,

A control unit connected to the coupling unit and controlling the operation of the parachute unit; And

A fall prevention device for a drone, which is disposed on an operator's control unit for adjusting a drone, and further includes at least one of an auxiliary control unit for controlling the operation of the parachute unit.
The method of claim 7,

It is connected to the coupling portion, the sensor unit for detecting the falling state of the drone; And

A fall protection device for a drone further comprising a sensing unit including a blocking fuse to cut off the main power of the drone to stop the operation of the rotor blade.
The method of claim 8,

The parachute unit includes a parachute container and injection means,

The parachute container is coupled to the upper side of the sensing unit, the fall prevention device for a drone comprising a storage hole capable of having a parachute therein and a coupling protrusion preventing the ejected parachute from being separated from the drone.
The method of claim 6,

The expansion unit is a fall prevention device for a drone consisting of a triangular pyramid or quadrangular pyramid shape so that a plurality of parachute parts are coupled to each side.