WO2017222249A1

WO2017222249A1 - Gimbal assembly for drone

Info

Publication number: WO2017222249A1
Application number: PCT/KR2017/006360
Authority: WO
Inventors: 정우철
Original assignee: 주식회사 엠지아이티
Priority date: 2016-06-20
Filing date: 2017-06-16
Publication date: 2017-12-28
Also published as: KR101689197B1

Abstract

The present invention relates to a gimbal assembly for a drone, comprising: a first unit mounted on a flight body of a drone to be able to rotate forward/backward, an operation space being formed in the middle of the first unit; a second unit mounted on the first unit and arranged in the operation space to be able to make upward/downward reciprocating movements; and a third unit that is mounted on the second unit and has a camera mounted on one side thereof such that the camera is rotated with regard to one side of the second unit, wherein the second unit lifts the camera above the upper surface of the flight body or lowers the camera below the lower surface of the flight body such that not only the position of the camera mounted on the drone can be adjusted freely, but the position can be determined accurately and precisely.

Description

Gimbal Assembly for Drones

The present invention relates to a gimbal assembly for drones, and more particularly, to a gimbal assembly for drones that allows the positioning of the camera mounted on the drone to be free, as well as accurate and fine positioning.

Drones were originally unmanned aircraft developed for military use to enable reconnaissance or direct physical blows of war zones or hostile nations, but have recently been developed for a variety of purposes.

For example, since drones are much lighter and easier to operate than airplanes, they can be used for broadcast photography as well as recently using drones for delivery of goods or mail.

In addition, drones have recently been used for the purpose of water rescue, which can be manipulated to drop life-saving tubes to distress people.

As described above, attempts to broaden the range of use of the drone are also ongoing by mounting various tools to the user's utilization, and in view of the above, the "unmanned aerial vehicle camera folding device" of Patent No. 10-1302442 ( The following may be mentioned as 'prior art').

The prior art is to be able to tilt the camera in order to secure a wide shooting range of the camera mounted on the drone.

However, the prior art is applied to a very large unmanned aerial vehicle, because the range of the vertical tilt of the camera is limited, it was difficult to mount on a small drone for the diagnostic inspection of the structure of the lower or narrow area of the bridge.

In particular, the prior art has a large number of parts, complicated assembly and fastening, made of very expensive equipment, and was also inconvenient in management tasks such as immediately identifying and inspecting, repairing, or replacing failure points.

The present invention has been invented to improve the above problems, to provide a gimbal assembly for a drone to be freely adjusted the position of the camera mounted on the drone. In addition, the present invention is to provide a gimbal assembly for a drone that allows the positioning of the camera according to the lifted position and tilt angle adjustment accurately and finely made.

In order to achieve the above object, the present invention includes a first unit which is mounted to the flight body of the drone forward, reverse rotation, the operating space is formed in the middle; A second unit mounted to the first unit and disposed to move up and down in the working space; And a third unit mounted to the second unit and provided with a camera on one side, wherein the third unit rotates the camera with respect to one side of the second unit. The second unit includes the camera on an upper surface of the flying body. It is possible to provide a gimbal assembly for a drone, characterized in that it is raised upward, or lowered below the lower surface of the flight body.

Here, the first unit includes a ring-shaped mounting main body in which the operating space is formed in the middle, and a rotation driving unit provided in the flying main body and forward and reverse rotation of the mounting main body mounted on the flying main body. It is characterized by.

In this case, the second unit is formed on an inner surface of the first unit forming the operating space, and the lifting unit for lifting up and down through the operating space of the first unit, and to support the reciprocation of the lifting unit And a lift support part and a camera support part reciprocally mounted to the lift part to support the camera, wherein the third unit is provided in the camera support part.

The third unit may include a first tilting part mounted between the camera support part and the lifting part to allow the camera to rotate in a horizontal direction with respect to an up and down direction in which the second unit moves up and down, and the camera support part. And a second tilting part provided between the camera and allowing the camera to rotate in the front-rear direction with respect to the vertical direction in which the second unit moves up and down.

According to the present invention having the above configuration, the following effects can be achieved.

First, the present invention is provided with a third unit capable of rotating the camera with respect to the second unit capable of lifting up and down on the first unit capable of forward and reverse rotation in the flight main body, whereby the position of the camera mounted on the drone can be freely adjusted. Of course, the positioning according to the lifted position and the tilt angle adjustment of the camera can be made precisely and finely.

Therefore, the present invention will not only secure a wide range of shooting, but also enable accurate positioning and focusing of the camera lens on a shooting target.

1 is a perspective view showing the overall appearance of a drone equipped with a gimbal assembly for a drone according to an embodiment of the present invention.

FIG. 2 is a plan view of FIG. 1.

FIG. 3 is a front view and a side view of a drone equipped with a gimbal assembly for a drone according to an embodiment of the present invention. FIG. 3 (a) is a front conceptual view illustrating a view from a direction IIIa of FIG. 2. 3 (b) is a view showing a side conceptual view showing what is viewed from the direction IIIb of FIG.

4 is a conceptual diagram illustrating various embodiments of a first unit that is a main part of a gimbal assembly for a drone according to an embodiment of the present invention.

5 to 7 is a perspective view of the coupling relationship of the gimbal assembly for drones according to an embodiment of the present invention from various viewpoints.

8 and 9 is a conceptual diagram showing an operating state of the gimbal assembly for a drone according to an embodiment of the present invention.

Advantages and features of the present invention, and methods for achieving them will be apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms.

In this specification, the embodiments are provided so that the disclosure of the present invention may be completed and the scope of the present invention may be completely provided to those skilled in the art.

And the present invention is only defined by the scope of the claims.

Thus, in some embodiments, well known components, well known operations and well known techniques are not described in detail in order to avoid obscuring the present invention.

In addition, the same reference numerals throughout the specification refer to the same components, and the terminology (discussed) used herein is for the purpose of describing the embodiments are not intended to limit the invention.

As used herein, the singular forms "a", "an" and "the" include plural unless the context clearly dictates otherwise, and the elements and acts referred to as 'comprises' or 'do' not exclude the presence or addition of one or more other components and acts. .

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used in a sense that can be commonly understood by those skilled in the art.

In addition, the terms defined in the commonly used dictionary are not ideally or excessively interpreted unless they are defined.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

First, Figure 1 is a perspective view showing the overall appearance of a drone equipped with a gimbal assembly for a drone according to an embodiment of the present invention.

2 is a plan conceptual diagram of FIG. 1.

3 is a front view and a side view of a drone equipped with a gimbal assembly for a drone according to an embodiment of the present invention, and FIG. 3 (a) is a front conceptual view showing a view from a direction IIIa of FIG. 2. 3 (b) is a diagram illustrating a side conceptual view showing what is viewed from the direction IIIb of FIG. 2.

5 to 7 are perspective views of the coupling relationship of the gimbal assembly for a drone according to an embodiment of the present invention, viewed from various viewpoints.

8 and 9 are conceptual views illustrating an operating state of a gimbal assembly for a drone according to an embodiment of the present invention.

As shown, the first unit 100 is mounted on the flight main body 500, the second unit 200 is mounted on the first unit 100, and the third unit is mounted on the second unit 200. It can be seen that the unit 300 is mounted structure.

The first unit 100 is mounted on the flight main body 500 so as to be rotated forward and backward, and an operating space 101 is formed in the middle thereof. The lifting unit reciprocates the third unit 200 and the third unit ( To provide a storage space of the 300 and the camera 400.

The second unit 200 is mounted to the first unit 100 in a liftable reciprocating manner, and lifts the camera 400 above the top surface of the flight body 500 or below the bottom surface of the flight body 500.

The third unit 300 is mounted to the second unit 200 and rotates the camera 400 with respect to one side of the second unit 200.

Therefore, according to the present invention, the third unit 300 capable of rotating the camera 400 with respect to the second unit 200 capable of lifting up and down on the first unit 100 capable of forward and reverse rotation to the flight body 500 is provided. By providing, the position adjustment of the camera 400 mounted on the drone is freely made, as well as the positioning according to the position and the tilt angle adjustment of the camera 400 can be precisely and finely made.

That is, the present invention will not only ensure a wide range of shooting, but also enable accurate positioning and focusing of the camera lens with respect to a photographing object.

The present invention can be applied to the above embodiments, and of course, the following various embodiments are also applicable.

First, the flight main body 500 constituting the drone includes a first plate 510 having a first through hole 511 formed thereon so as to mount the first unit 100 to form an upper surface thereof, and the first unit 100. The second through hole 521 is formed to be mounted to form a lower surface, and includes a second plate 520 facing the first plate 510.

The flying body 500 may include a plurality of spacers disposed between the first plate 510 and the second plate 520 so as to space the first plate 510 and the second plate 520 at regular intervals ( 530 and a support rod 540 mounted to the spacer 530 and mounted with a rotatable flying blade 600 at an end thereof.

In addition, the first unit 100, the second unit 300, and the third unit 300 to be described later may move manually or automatically.

On the other hand, the first unit 100 is provided with a ring-shaped mounting body 110 in which the operating space 101 is formed in the middle, and the flying body 500, and the mounting body mounted on the flying body 500 ( It may include a rotation drive unit 120 for forward and reverse rotation 110.

Here, the rotation drive unit 120, as shown in Figure 4 (a), the drive motor 121 is built in the flight main body 500, the drive gear 122 is mounted to the drive shaft end of the drive motor 121, and mounting Embodiments of a structure including a driven gear 123 formed along the outer circumferential surface of the main body 110 and a drive transmission belt 124 connecting the drive gear 122 and the driven gear 123 to each other may be applicable.

In this case, as shown in FIG. 4 (b), the rotation driving unit 120 may apply an embodiment of a structure in which the driving gear 122 and the driven gear 123 formed along the outer circumferential surface of the mounting body 110 are directly engaged. Of course you can.

Meanwhile, the second unit 200 will be described in more detail with reference to FIGS. 5 to 7, and it can be understood that the second unit 200 includes a lift unit 210, a lift support unit 220, and a camera support unit 230.

The lifting unit 210 moves up and down through the operating space 101 of the first unit 100, that is, the mounting body 110.

The lifting support 220 is formed on the inner side of the mounting body 110 forming the operating space 101 to support the reciprocation of the lifting unit 210.

The camera support 230 is mounted to the lifting unit 210 so as to reciprocately support the camera 400.

Here, it can be seen that the third unit 300 to be described later is provided in the camera support 230.

On the other hand, the third unit 300, the first tilting unit 310 to allow the rotational operation as shown in Figure 3 (a), and the second tilting unit 320 to allow the rotational operation as shown in Figure 3 (b). It can be seen that it includes.

That is, the first tilting part 310 is mounted between the camera support part 230 of the second unit 200 and the lifting part 210 of the second unit 200, so that the second unit (as shown in FIG. It is to allow the camera 400 to rotate in the left and right directions with respect to the vertical direction in which the 200 moves up and down.

The second tilting part 320 is provided between the camera support part 230 and the camera 400 so that the camera 400 can move forward and backward with respect to the vertical direction in which the second unit 200 moves up and down as shown in FIG. 3B. It is to allow the meeting.

Hereinafter, each part of the second unit 200 and the third unit 300 will be described in more detail.

First, referring to FIGS. 5 to 7 again, the lifting unit 210 of the second unit 200 may have an upper frame 211 and a lower frame 212 disposed below the upper frame 211. And, the upper end is coupled to the upper frame 211, the lower end is coupled to the lower frame 212, it can be seen that it includes a plurality of lifting rods 213 that the lifting operation is supported by the lifting support 220. .

And, the lifting unit 210, the upper end is coupled to the upper frame 211, the lower end is coupled to the lower frame 212, the first screw rod 214 and the thread (not shown) formed along the outer circumferential surface and It may include a first linear motor 215 connected to the first screw rod 214 so as to be mounted forward and reversely and disposed on the lower frame 212.

Here, it can be seen that the camera support 230 to be described later can be lifted and reciprocated along the plurality of lifting rods 213.

On the other hand, the lifting support 220 of the second unit 200, at least one is formed on each of both sides of the inner surface of the ring-shaped mounting body 110, the operating space 101 is formed in the middle of the first unit 100, respectively In addition, it can be seen that the lifting rods 213 of the lifting unit 210 include a plurality of linear guides 221 supporting lifting up and down.

In addition, the camera support part 230 of the second unit 200 is arranged on the front and rear surfaces of the elevating piece 231 and the elevating piece 231, which elevate and reciprocate along the plurality of elevating rods 213. Both sides of the 400 may include a support bracket 232 rotatably coupled.

In addition, the camera support 230 has an upper end coupled to the upper frame 211, a lower end coupled to the lower frame 212, and a second screw rod 234 having a thread formed along an outer circumferential surface thereof, and a second screw rod. It may include a second linear motor 235 connected to the 234 so as to be mounted in a forward and reverse rotation and disposed on the elevating piece 231.

At this time, it can be seen that the third unit 300 is formed on the lifting piece 231 and the support bracket 232.

On the other hand, the first tilting portion 310 of the third unit 300, the lifting piece 231 and the front surface of the lifting piece 231 of the camera support portion 230 capable of lifting up and down along the lifting bar 213. It may include a first rotating motor 311 disposed between the center of the support bracket 232 is disposed.

Here, the first rotational motor 311 rotates the support bracket 232 forward and backward on the lifting piece 231 as shown in FIG. 3 (a) using the center of the support bracket 232 as the rotation shaft.

On the other hand, the second tilting part 320 of the third unit 300 is provided on both ends of the support bracket 232 of the camera support 230, the support piece 233a for rotatably supporting both sides of the camera 400 It may include a second rotation motor 321 disposed between the support piece 233b of one side of the 233b and one side of the camera 400.

Here, the second rotation motor 321 rotates the camera 400 forward and reverse with respect to the support piece 233b with the end of the support piece 233b as the rotation shaft.

In this case, the second tilting part 320 may further include an adjustment slot 233s to penetrate each of the

support pieces

233a and 233b to a predetermined length so as to adjust a position where both sides of the camera 400 are coupled. Of course.

Accordingly, the linear guide of the driving force of the first and second

linear motors

215 and 235 is transmitted to the lifting bar 213 and the lifting piece 231 through the first and

second screw rods

214 and 234. By adopting the structure, accurate and fine positioning of the second unit 200 will be possible.

In particular, the present invention, the operator can perform the operation of the first, second, third unit (100, 200, 300) with the existing remote controller, as well as a receiver provided on one side of the flight main body 500 (hereinafter referred to as H) and the first, second, and

third units

100, 200, and 300 electrically connected to each other, and are used as a substitute for a remote controller that communicates with a portable terminal of an operator such as a smartphone, a portable PC or a tablet PC, and the aforementioned receiver. It is also possible to utilize.

An operation process of the gimbal assembly for a drone according to the present invention as described above will be described with reference to FIGS. 8 and 9, and reference numerals not shown in FIGS. 8 and 9 refer to FIGS. 1 to 7.

First, the user drives the flight blade 600 of the flight body 500 by using a portable terminal or a remote controller (hereinafter, 'operator') to fly the flight body 500.

Here, when the operator manipulates the descending of the second unit 200 and the third unit 300 by using the manipulator to take a picture and video of the object in a view that is viewed from a high place, the lifting rods 213 are linear guides ( 221 is lowered, and the lower frame 212 is disposed on the lower side of the second plate 520 as shown in FIG.

At this time, the operator operates the first rotation motor 311 to secure the proper left and right inclination angles for the left and right pivoting operation (see the bidirectional circular arrow on the lower side of FIG. 3 (a)) with respect to the up and down direction of the camera 400. do.

At the same time, the operator operates the second rotation motor 321 for the forward and backward rotational motion (refer to the bidirectional circular arrow on the lower left side of FIG. 3 (b)) with respect to the vertical direction of the camera 400. You can shoot while securing.

On the other hand, the second unit 200 and the third unit 300 with the manipulator in order to take a picture and video of the object in the view of the operator looking up at a high place while flying the flight main body 500 from the lower side of the bridge plate or structure. When operating the rising of the lifting rods 213 are raised along the linear guide 221, the upper frame 211 is disposed on the upper side of the first plate 510 as shown in FIG.

As described above, it can be seen that the present invention has as its basic technical idea to provide a drone gimbal assembly for allowing the positioning of the camera mounted on the drone to be freely performed, as well as to accurately and precisely position the camera.

In addition, many modifications and applications are possible to those skilled in the art within the scope of the basic technical idea of the present invention.

Claims

A first unit mounted on the flight main body of the drone so as to be forward and reverse rotation and having an operation space formed therebetween;

A second unit mounted to the first unit and disposed to move up and down in the working space; And

A third unit mounted to the second unit and provided with a camera on one side, and rotating the camera with respect to one side of the second unit,

The second unit, the gimbal assembly for a drone, characterized in that to raise the camera above the upper surface of the flying body, or lower than the lower surface of the flying body.
The method according to claim 1,

The first unit,

A ring-shaped mounting body in which the working space is formed in the middle,

The gimbal assembly for a drone, which is provided in the flying main body, and comprises a rotation drive unit for forward and reverse rotation of the mounting body mounted on the flying body.
The method according to claim 1,

The second unit,

An elevating unit configured to reciprocate up and down through the operating space of the first unit;

An elevating support part formed on an inner side of the first unit forming the operating space and supporting a reciprocating of the elevating part;

A camera support part mounted reciprocally on the lifting part to support the camera,

The third unit is a gimbal assembly for a drone, characterized in that provided in the camera support.
The method according to claim 3,

The third unit,

A first tilting part mounted between the camera support part and the lifting part to allow the camera to rotate in a left-right direction with respect to an up-down direction in which the second unit moves up and down;

And a second tilting part provided between the camera support part and the camera to allow the camera to rotate in a front-rear direction with respect to a vertical direction in which the second unit moves up and down.