KR20200067046A - Fall prevention device for drone - Google Patents

Abstract

The present invention relates to a fall prevention device for a drone to prevent damage by an impact when an unmanned aerial vehicle such as a drone falls. The fall prevention device for a drone is coupled to a drone which is an unmanned aerial vehicle capable of aerial flight via radio waves of a remote controller by an operation of a user, and comprises: a parachute module detachably coupled to one portion of the drone; and a control unit which is arranged on one portion of the parachute module and communicates with a central control center to transceive information on a flight path, a danger element, and a flight state of the drone to control operations of the parachute module and the drone. The parachute module includes: a coupling unit detachably coupled one portion of the drone; a sensing unit which is arranged on an upper side of the coupling unit, senses a flight state of the drone, and transmits sensed information to the control unit; and a parachute unit arranged on an upper side of the sensing unit and provided with a parachute ejected and spread in accordance with a control signal of the control unit. Even if the drone malfunctions or falls by an external factor while flying, the drone falls safely to minimize human life and property damage.

Description

Fall prevention device for drones{FALL PREVENTION DEVICE FOR DRONE}

The present invention relates to a fall prevention device for a drone for preventing damage due to an impact when an unmanned vehicle, such as a drone, falls, more specifically, even if the drone breaks down during flight or falls by an external element, It relates to a fall protection device for drones that can safely fall to minimize damage to human life and property.

Since unmanned aerial vehicles such as drones have been developed for military use in the early 20th century, they have been developed competitively in many countries, and drone penetration rate has been rising rapidly with the recent increase in global interest in drones.

Accordingly, the use of drones for public purposes such as racing drones including toy drones, shooting drones, commercial drones including agricultural drones, and police drones is rapidly increasing, and is expected to increase further.

These drones are remote control from the ground without human beings boarding the aircraft, and the thrust of the driving motor is rotated to generate thrust as several propellers are rotated, and the aircraft rises to fly. Is to fly in the air.

The drone is an unmanned aircraft weighing 150 kg or less under the Aviation Act, and more than that is classified as an unmanned aircraft. Safety rules, such as no-fly zones and dropping objects, must be observed.

In Korea, at the 22nd National Science and Technology Advisory Conference in May 2015, these drone-related technologies were ranked 9th in the world, and drone-related industries were recognized as future growth engines, and 3 strategies for'realization of a global unmanned mobile industry powerhouse' and By drawing nine major tasks, it is showing the will to foster the drone industry.

As described above, the development of additional devices related to safety is relatively weak compared to the performance of a rapidly developing drone.

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 fall at high altitude and accelerate, adding to the body of a nearby passer-by, resulting in a great tinnitus accident. 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 being 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 crash. 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 Literature 1 discloses a safe landing pack and a system in an uncontrollable state due to an electronic error or power loss due to an air vehicle malfunction or a gust when operating a rotating drone. The landing pack is a technology that is attached to the top of the vehicle and operates at the ground transmitter.

However, multicopter drones are more likely to suddenly fall by an external environment, such as a blast, even when there is no power loss and there is no electronic error. 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.

KR 10-2014-0038495 A

In order to solve the above problems, the present invention 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 is coupled. 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 not only the problems of the drone itself, but also the drone's fall due to the user's inexperience and impact due to the external environment. An object of the present invention is to provide a fall protection device for drones that can prevent damage to humans and objects from secondary damage caused by falling drones.

In addition, by consisting of a parachute module that is divided into a coupling part, a sensing part, and a parachute part, it is possible to reduce the replacement cost due to partial failure. Another object is to provide a fall protection device for high drones.

In order to achieve the above object, the present invention in the fall prevention device for a drone connected to a drone having a plurality of rotor blades spaced from the main body and the main body, the coupling part detachably connected to the drone, and connected to the coupling part, 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.

By providing the present invention configured as described above, even if the drone suddenly falls, it can immediately respond to minimize damage to the drone itself, and prevent secondary damage to humans and objects that may be caused by the falling drone. It has the effect.

In addition, it is composed of parachute modules, which are divided and combined, so that only the defective or defective parts can be replaced, thereby reducing the cost of maintenance, and it can be combined with all existing drones to increase its utilization. There is another effect that can be made.

1 is a block diagram showing a fall prevention device for a drone according to the present invention.
Figure 2 is an exploded perspective view showing a fall prevention device for a drone according to the present invention.
Figure 3 is a cross-sectional view showing a parachute of the fall prevention device for drones according to the present invention.
Figure 4 is an exemplary view showing a parachute coupled to the expansion portion and the expansion portion of the fall prevention device for drones according to the embodiment.
5 is an exemplary view showing a form in which a drone fall prevention device according to an embodiment is coupled to a drone.
Figure 6 is a block diagram showing a fall prevention device for a drone according to the present invention.
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 invention 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. The apparatus, the fall prevention device for a drone of the present invention, 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 invention, 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.

At this time, the coupling portion 110 may be coupled to be detachably attached to any part of the drone (D).

According to an embodiment of the present invention, the coupling portion 110 is coupled to be detachably attached to the upper portion of the drone so that the sensing portion 120 is coupled to the upper 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) to generate rotational force to allow the drone (D) to 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 coupling and separating the sensing unit 120 and the parachute unit 130 to the upper side of the coupling plate 111.

In addition, the coupling portion 110 may further have a joint structure that rotatably connects the coupling legs 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 invention, 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 of 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 from falling. This is to prevent the inability to respond.

According to an embodiment of the present invention, 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 one embodiment of the invention, 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 in the figure, a parachute P that is ejected and unfolded according to a 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 coupling protrusions (131b) are formed to prevent the wires (W) from tangling with each other to divide the plurality of wires (W) into a constant number Can be combined.

According to an embodiment of the present invention, the parachute container 131 is a drive motor that is opened and closed according to the control signal of the control unit 200 so that the parachute (P) is smoothly injected 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 invention, 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, the 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 invention configured as described above, even if the drone (D) suddenly falls, it can 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.

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

Referring to FIG. 7, the coupling leg 112 according to another embodiment of the present invention may have a length-adjustable length-adjustable 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 prevention device for drones of the present invention 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 a drone (A) according to the present invention 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 invention is a control unit 200 connected to the coupling unit 110 and an auxiliary control unit (not shown) arranged on the 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 inventor appropriately uses the concept of terms to describe his or her invention in the best way. Based on the principle that it can be defined, it should be interpreted as meanings and concepts consistent with the technical spirit of the present invention.

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

100: parachute module 110: coupling portion
111: bonding plate 112: bonding leg
113: combining means 120: sensing unit
121: case 122: sensor unit
123: Main power unit 124: Shut-off fuse
130: parachute section 131: parachute container
131a: storage hole 131b: engaging projection
131c: open/close door 131d: drive motor
132: injection means 140: expansion
141: auxiliary power unit 200: control unit
300: auxiliary leg 310: fixing means
A: Fall prevention device D: Drone
D1: Body H: Hinge
P: Parachute RW: Rotary wing
W: wire

Claims (8)

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 comprising a joint structure that pivotably connects the coupling legs to the coupling plate.
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.

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