KR20180001118A - Unmanned air vehicle equipped parachute - Google Patents

Abstract

The present invention relates to an unmanned aerial vehicle equipped with a parachute. When a risk of falling during flying is detected, the unmanned aerial vehicle equipped with a parachute is stretched to a side direction of a fuselage and a position thereof is changed to the top of the fuselage. The unmanned aerial vehicle equipped with a parachute comprises: a cylindrical main body member installed in a lower portion of the unmanned aerial vehicle composed of a plurality of rotation blades, provided with a parachute stretched to the outside therein, and having one side thereof opened; a falling detection unit for detecting a current state of the unmanned aerial vehicle; and a motor member for opening the main body member.

Description

[0001] Unmanned air vehicle equipped parachute [0002]

The present invention relates to an unmanned aerial vehicle equipped with a parachute in order to prevent damage to a moving body caused by a fall during a flight. More particularly, the present invention relates to an unmanned aerial vehicle To a unmanned aerial vehicle equipped with a parachute in which the position of the parachute is changed.

Unmanned aerial vehicles (UAVs), one of the most remarkable technologies in recent years, have been widely used in a wide variety of fields, unlike the initial applications developed and used for military purposes. In recent years, unmanned aerial vehicles The trend is expanding.

Such unmanned aerial vehicles are expensive equipments themselves, and expensive equipment such as a camera can be mounted depending on the purpose of use, so that a great property loss may occur to a user when the vehicle falls.

In addition, secondary damage may occur due to a collision with a building, a vehicle, or a person located at the crash site in the case of a crash of an unmanned aerial vehicle.

In order to solve such a problem, an invention relating to a unmanned aerial vehicle equipped with a parachute is disclosed in Korean Patent Laid-Open Publication No. 10-2013-0045121 entitled " Parachute Extraction Apparatus for Unmanned Aircraft "and Korean Patent Registration No. 10-1496892 Quot; Copter Drones "and Korean Unexamined Patent Publication No. 10-2016-0019672 entitled " Unmanned aerial vehicle equipped with a parachute"

The above-mentioned Korean Patent Laid-Open Publication No. 10-2013-0045121 discloses an apparatus for extracting a parachute for an unmanned aerial vehicle, wherein when the compression spring device is opened by the operation of the operation arm, the compression spring is released from the compression spring, This is precisely the case that the auxiliary parachute and the main parachute are unfolded at a certain distance from the fuselage by successively connecting the auxiliary parachute and the main parachute via the connecting strap in order to allow the parachute to be deployed safely without being caught by the fuselage An invention concerning a flight body has been proposed.

In addition, the "Multi-Copter Drone" of Korean Patent Registration No. 10-1496892 itself judges the fall, automatically cut off power supplied for rotating the rotor blades when a fall is determined, and automatically deploys a parachute to make an emergency landing In the above-mentioned Korean Unexamined Patent Application Publication No. 10-2016-0019672, a " unmanned aerial vehicle equipped with a parachute "has a parachute deployed rapidly upon detection of a fall, So that damage to the electronic parts mounted inside the body can be prevented.

However, the above-described conventional techniques are techniques in which a parachute is deployed above a UAV when the danger of a fall is detected or when the UAV falls, and in this case, a parachute is tangled on a rotor of a UAV that is shaken in an unstable state, This can lead to the problem of severing the connected line.

Therefore, in order to solve the above problem, there is a need for a method of safely landing the unmanned aerial vehicle on the ground by preventing the contact between the rotor of the unmanned aerial vehicle and the deployed parachute when the accident occurs.

Korean Patent Publication No. 10-2013-0045121 (March 31, 2013) Korean Registered Patent No. 10-1496892 (Feb. 23, 2015) Korean Patent Laid-Open Publication No. 10-2016-0019672 (Feb. 22, 201)

The unmanned aerial vehicle equipped with the parachute according to the present invention is a technique proposed to solve the problems of the conventional art,

The present invention aims at providing a solution to this problem, because when a parachute is deployed upwardly of the vehicle body during a flight, a problem may arise in which the parachute lines are entangled or cut into any one of the plurality of rotors.

In order to realize the above-mentioned object, the unmanned aerial vehicle provided with the parachute according to the present invention,

A tubular body member mounted on a lower portion of the unmanned aerial vehicle body composed of a plurality of rotor blades and having a parachute deployed to the outside and having one side opened; A fall detection unit for detecting a current state of the unmanned air vehicle; A motor member for opening the body member; The present invention provides an unmanned aerial vehicle equipped with a parachute.

The unmanned aerial vehicle provided with the parachute according to the present invention,

A parachute deployed to the side of the fuselage is provided at the lower part of the fuselage to prevent the contact between the rotor of the unmanned aerial vehicle and the deployed parachute when the crash occurs, .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a developed view of a component of a body member which is a component of a UAV provided with a parachute according to the present invention; FIG.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a parachute,
3 (a) to 3 (d) are views showing an attitude change of an unmanned aerial vehicle provided with a parachute according to the present invention.
4 (a) to 4 (c) are views showing a process of deploying a parachute of an unmanned aerial vehicle provided with a parachute according to the present invention.

The present invention relates to a unmanned aerial vehicle equipped with a parachute to prevent damage to a moving body caused by a fall during a flight,

A tubular body member (100) mounted on a lower portion of an unmanned aerial vehicle body composed of a plurality of rotor blades and having a parachute (110) deployed to the outside and having one side opened; A crash detection unit (not shown) for detecting the current state of the unmanned air vehicle; A motor member (100) for opening the body member; The present invention relates to an unmanned aerial vehicle equipped with a parachute.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, the unmanned aerial vehicle including the parachute according to the present invention is mounted on a lower portion of a unmanned aerial vehicle comprising a plurality of rotor blades, and a parachute 110 deployed to the outside is installed therein And a tubular body member (100) having one side opened.

Generally, the unmanned aerial vehicle may be composed of a fixed wing or a rotor, a fixed wing, and a rotor, and does not specifically designate any one type. However, the unmanned aerial vehicle equipped with a parachute according to the present invention may have a configuration Of the unmanned aerial vehicle.

This is because the present invention is equipped with the parachute 110 for protecting the unmanned aerial vehicle including a plurality of rotor blades, and has technical features in the deployed position and direction.

That is, a general type of unmanned aerial vehicle including a plurality of rotor blades has a configuration in which a plurality of link arms are arranged in various directions with reference to a body of the unmanned aerial vehicle, and a rotor blade is provided at each end of the plurality of link arms.

Since the unmanned aerial vehicle provided with the parachute according to the present invention has the same or similar shape as that of the general unmanned aerial vehicle, a plurality of impacts due to the rotation of each of the plurality of rotating blades are formed in the upper and upper diagonal directions of the unmanned air vehicle , Which exerts an influence on an object adjacent to each of the flywheels.

When the parachute 110 is deployed above the unmanned aerial vehicle in which the unmanned aerial vehicle has lost its balance, the line connecting the parachute 110 and the unmanned aerial vehicle, Such as the collapse of a parachute by a link arm or the disconnection of a parachute by a flywheel.

In order to solve such a problem, the parachute 110 provided inside the body member 100 is deployed laterally of the unmanned aerial vehicle.

3 (a) to 3 (d), the body member 100 is mounted on the lower portion of the unmanned aerial vehicle, so that the parachute 110 is installed laterally of the unmanned air vehicle on the body member 100, The parachute 110 is prevented from entering the influence of each of the plurality of rotor blades.

At this time, depending on the attitude of the unmanned air vehicle, the direction in which the parachute 110 is deployed may be variously formed, but the parachute 110 is changed to a position above the unmanned air vehicle due to the continuous fall of the unmanned air vehicle .

When the parachute 110 is deployed and then positioned above the unmanned aerial vehicle, the unmanned aerial vehicle may be connected to the lower end of the unmanned aerial vehicle by the parachute 110 And the plurality of rotor blades are positioned so as to face downward of the unmanned air vehicle.

However, the present invention does not mean that the present invention can not be applied to an unmanned aerial vehicle configured as a fixed wing, by limiting the shape of the unmanned aerial vehicle to a shape of a unmanned aerial vehicle composed of a flywheel.

Specifically, as shown in FIGS. 1 and 2, the body member 100 is formed in a cylindrical shape in which a space is formed and one side is opened, and a parachute 110 is provided in an inner space.

Preferably, the body member 100 is mounted on a lower portion of the unmanned aerial vehicle, and is installed at a central portion of the lower portion in consideration of the center of gravity of the unmanned aerial vehicle, and one end of the paratroop is connected to a lower central portion of the unmanned air vehicle The parachute may be provided inside the body member and a part of the end protrudes outside the body member 100 to be connected to the unmanned aerial vehicle.

The parachute may be provided inside the body member 100, and a part of the end may be connected to the inside of the body member 100.

Thereafter, when the parachute 110 is deployed through the open end of the body member 100, the parachute 110 is moved from the lower central portion of the unmanned aerial vehicle through the interior of the body member 100 It passes through the open side of the body member 100, which may cause unbalance of the unmanned aerial vehicle posture and may act as a hindrance to stable falling.

This is also the case when a distal end portion of the parachute 110 is connected to one side of the inside of the body member 100.

Therefore, the body member 100 can be moved inward and outward so that the parachute 110 can maintain a vertical state from the lower central portion of the unmanned aerial vehicle or from one side of the inside of the body member 100 when the unmanned air vehicle falls down. And a communication hole (120) for communication is formed on the side surface along the longitudinal direction.

In this case, when the body member 100 is mounted on the unmanned air vehicle, the communication hole 120 should be positioned to open the body member 100 downwardly of the unmanned air vehicle, The body member 100 is opened above the unmanned aerial vehicle.

The communication hole 120 has a length and a width so as not to cause friction with the lower part of the lower portion of the unmanned aerial vehicle or the inner side of the body member 100, .

Since the body member 100 is mounted on the lower portion of the unmanned aerial vehicle and one side thereof is opened laterally, when the unmanned air vehicle is inclined according to its attitude during the flight of the unmanned air vehicle, have.

The body member 100 includes a cover 130 in the form of a lid to prevent the release of the parachute 110 by closing one side of the body member 100, .

The body member 100 is a component for deploying the parachute 110 provided in the inside of the body 100 in the event of an emergency, and comprises a compression spring 142 having a plate-shaped support 141 fastened to both ends thereof , And an elastic part (140) for deploying the parachute (110).

The resilient portion 140 is elastically deformed to elastically expand the parachute 110 to the outside of the body member 100 by compressing the compression spring 142 when an external force is applied to narrow the distance between the respective support rods 141, .

Therefore, the elastic member 140 is normally compressed while maintaining the compressed state of the elastic member 140, and the elastic member 140 is released from the compressed state, The step 160 is formed at one point in the longitudinal direction and one or more protrusions 170 are formed on the outer circumference of the opened one side.

The lid 130 is formed with a fastening groove 132 whose one side is opened along the inner circumference of the one opened side of the lid 130. The side of the fastening groove 132, At least one entry groove (133) is formed.

Specifically, when the body member 100 and the cover 130 are coupled to each other, the at least one protrusion 170 is inserted into the coupling groove 132 through the at least one entry groove 133 .

The number of the protrusions 170 may be the same as the number of the protrusions 170 or the number of the protrusions 170 may be greater than the number of the protrusions 170.

When the lid 130 is rotated, the protrusion 170 is retained in the engaging groove 132, and the body 100 and the lid 130 are coupled to each other.

1 and 2, the body member 100 connects the lid part 130 and the elastic part 140 to each other, and allows the lid part 130 to rotate And includes a connection shaft 150 as a component for the connection.

The connecting shaft 150 may have a structure in which one end of the connecting shaft 150 is connected to one of the supporting rods 141 and protrudes from a central portion of the supporting rods 141 or a central portion of the supporting rods 141, 150 may be connected to the lid 130 and may be inserted through the center of the lid 130 or inserted into the lid 130.

The lid 130 is rotatable about the connecting shaft 150 while being connected to the elastic part 140. When the lid 130 is rotated, the protrusion 170 Can not be released to the outside of the coupling groove 132, so that the body member 100 and the lid 130 can be maintained in a coupled state with each other.

The step 160 is a component for compressing the compression spring 142 by supporting the elastic part 140 when the body member 100 and the lid part 130 are coupled to each other, The spring 142 is kept compressed by the coupling between the body member 100 and the lid 130 and the step 160. [

In addition, the unmanned aerial vehicle provided with the parachute according to the present invention includes a fall detection unit for detecting the current state of the unmanned aerial vehicle.

The fall detection unit is a component for preparing for the fall of the unmanned aerial vehicle, and is operated when the unmanned air vehicle is driven or taken off, thereby continuously detecting the current state of the unmanned air vehicle.

The fall detection unit senses the current state of the unmanned air vehicle and detects the current state of the unmanned air vehicle according to any one of a landing state, an take-off state, a flight state, an abnormal state, As shown in Fig.

The abnormal state refers to a state in which an abnormality is detected in the unmanned air vehicle, but before a fall occurs.

At this time, any one or more of the landing state, the take-off state, and the abnormal state may not be included in the current state, but the flight state and the falling state are necessarily included.

Accordingly, the fall detection unit is a component for continuously detecting the current state of the unmanned aerial vehicle, and includes a sensor unit that continuously detects the current state of the unmanned air vehicle and generates a measured value.

The sensor unit may be configured to include at least one of an acceleration sensor, a gyro sensor, a direction sensor, a vibration sensor, and an impact sensor.

However, the sensor provided in the sensor unit is not necessarily limited to any one of the acceleration sensor, the gyro sensor, the direction sensor, the vibration sensor, and the impact sensor, and it is possible to continuously detect the current state of the unmanned air vehicle Any sensor of known sensors may be additionally provided as long as the sensor is capable of exhibiting its function in determining a fall state.

The fall detection unit may include an operation unit for deriving a current state of the unmanned aerial vehicle based on the measured values.

The calculation unit derives the current state of the unmanned aerial vehicle, and the sensor unit may include an acceleration sensor and a gyro sensor.

Generally, the acceleration sensor and the gyro sensor are sensors used for controlling the attitude of the unmanned aerial vehicle, and can accurately detect the inclination and the aurge direction of the unmanned aerial vehicle. Therefore, the acceleration sensor and the gyro sensor, When the inclination angle of the unmanned aerial vehicle is detected to be larger than the normal range, the arithmetic unit can determine the current state of the unmanned aerial vehicle as a falling state.

Further, as another embodiment in which the arithmetic unit derives the current state of the unmanned aerial vehicle, the sensor unit may include a direction sensor.

When the vertical and horizontal inclination of the unmanned aerial vehicle sensed by the direction sensor is detected to be larger than the normal range, the operation unit may detect the vertical, horizontal inclination, and the like of the unmanned air vehicle, The current state of the unmanned aerial vehicle can be judged as a falling state.

Further, as another embodiment in which the arithmetic unit derives the current state of the unmanned air vehicle, the sensor unit may include a vibration sensor and an impact sensor.

The vibration sensor can sense a vibration state of the unmanned air vehicle, and the impact sensor can sense an impact applied to the unmanned air vehicle. Therefore, when the vibration sensor and the shock sensor exceed a normal range , The operation unit can determine that the normal flight of the unmanned aerial vehicle is impossible.

When the current state of the unmanned aerial vehicle is determined to be in a falling state, the parachute 110 provided in the body member 100 must be immediately deployed to the outside.

Accordingly, the unmanned air vehicle having the parachute according to the present invention is a component for deploying the parachute 110 by releasing the state where the body member 100 and the lid unit 130 are coupled to each other, And a motor member (200) for opening the body member (100).

4 (a), the lid 130 is formed with a plurality of gears 131 along the outer periphery thereof, so that the motor shaft of the motor member 200 is provided with the lid 130 And a rotary gear portion 210 engaging with the plurality of gears 131 formed on the rotary gear portion 210 is fastened.

The motor member 200 may be a known DC motor, a servo motor, or the like,

4 (a) to 4 (c), the lid part 130 is also rotated by the rotation of the rotary gear part 210 due to the rotation of the motor shaft, and the protrusions 170, The lid 130 is disengaged from the body member 100 due to the cohesive elastic force of the compression spring 142 when the entry groove 133 is adjacent.

The fall detection unit may include a control unit for driving the motor member 200 by a signal from the operation unit to expand the parachute 110 from the body member 100. [

 The embodiments described above are provided by way of example for the purpose of enabling a person skilled in the art to sufficiently transfer the technical idea of the present invention to a person skilled in the art, But may be embodied in other forms without limitation.

In order to clearly explain the present invention, parts not related to the description are omitted from the drawings, and in the drawings, the width, length, thickness, etc. of the components may be exaggerated or reduced for convenience.

Further, like reference numerals designate like elements throughout the specification.

100: Body member 110: Parachute
120: communication hole 130: lid part
131: gear 132: fastening groove
133: entry groove 140: elastic part
141: Supporting bracket 142: Compression spring
150: connection shaft 160: step
170: protrusion 200: motor member
210:

Claims (8)

A tubular body member (100) mounted on a lower portion of an unmanned aerial vehicle body composed of a plurality of rotor blades and having a parachute (110) deployed to the outside and having one side opened;
A fall detection unit for detecting a current state of the unmanned air vehicle;
A motor member (200) for opening the body member (100); And an unmanned aerial vehicle having a parachute. The method according to claim 1,
The parachute (110)
Wherein the unmanned aerial vehicle is deployed laterally of the unmanned aerial vehicle. The method according to claim 1,
The body member (100)
Wherein a communication hole (120) for communicating the inside and the outside is formed on the side surface along the longitudinal direction. The method according to claim 1,
The body member (100)
A plurality of gears 131 are formed along the outer periphery and a coupling groove 132 having one side opened along the inner periphery of the opened one side is formed and one or more entry grooves 133 A cover 130 in the form of a lid,
A resilient portion 140 composed of a compression spring 142 having a plate-shaped support 141 fastened to both ends thereof and deploying the parachute 110;
A connection shaft 150 connecting the cover 130 and the elastic part 140 to each other; And an unmanned aerial vehicle having a parachute. The method according to claim 1,
The body member (100)
Wherein a step (160) is formed at one point in the longitudinal direction so that the inner hollow section is expanded, and at least one protrusion (170) is formed at an outer periphery of the opened one side. The method according to claim 1,
The fall detection unit includes:
A sensor unit for continuously sensing the state of the unmanned air vehicle and generating a measurement value;
An operation unit for determining a current state of the unmanned aerial vehicle based on the measured values;
A control unit for driving the motor member by a signal of the operation unit; And an unmanned aerial vehicle having a parachute. The method according to claim 6,
The sensor unit includes:
An acceleration sensor, a gyro sensor, a direction sensor, a vibration sensor, and an impact sensor. The method according to claim 1,
In the motor shaft of the motor member 200,
And a rotary gear part (210) engaged with a plurality of gears formed on the lid part (130) is fastened.

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