KR20170019896A - Unmanned aerial vehicle and remote controller for the unmanned aerial vehicle - Google Patents

Unmanned aerial vehicle and remote controller for the unmanned aerial vehicle Download PDF

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Publication number
KR20170019896A
KR20170019896A KR1020150114386A KR20150114386A KR20170019896A KR 20170019896 A KR20170019896 A KR 20170019896A KR 1020150114386 A KR1020150114386 A KR 1020150114386A KR 20150114386 A KR20150114386 A KR 20150114386A KR 20170019896 A KR20170019896 A KR 20170019896A
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South Korea
Prior art keywords
remote controller
unit
unmanned aerial
aerial vehicle
rotation
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KR1020150114386A
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Korean (ko)
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KR101725649B1 (en
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임은석
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임은석
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C39/00—Aircraft not otherwise provided for
    • B64C39/02—Aircraft not otherwise provided for characterised by special use
    • B64C39/024—Aircraft not otherwise provided for characterised by special use of the remote controlled vehicle type, i.e. RPV
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D45/00—Aircraft indicators or protectors not otherwise provided for
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
    • G05D1/0011—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots associated with a remote control arrangement
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0346—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of the device orientation or free movement in a 3D space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors
    • B64C2201/146—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D45/00—Aircraft indicators or protectors not otherwise provided for
    • B64D2045/0085—Devices for aircraft health monitoring, e.g. monitoring flutter or vibration

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Automation & Control Theory (AREA)
  • Human Computer Interaction (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
  • Selective Calling Equipment (AREA)

Abstract

The present invention relates to an unmanned aerial vehicle whose traveling direction is determined based on a reference axis set based on the position information of the unmanned aerial vehicle and the position information of the remote controller, and a remote controller for the unmanned aerial vehicle.
The unmanned aerial vehicle according to one embodiment of the present invention includes a wireless communication unit for receiving position information and a direction control signal of the remote controller from the remote controller, A GPS receiver for receiving position information of the unmanned aerial vehicle; A direction unit that recognizes a reference axis set based on the position information of the remote controller and the position information of the unmanned air vehicle, and determines a traveling direction based on the recognized reference axis and the direction control signal; A driving unit for driving the unmanned air vehicle in the determined traveling direction; And a controller for controlling the wireless communication unit, the GPS receiver, the direction unit, and the driving unit.

Description

TECHNICAL FIELD [0001] The present invention relates to an unmanned aerial vehicle and a remote control device for the unmanned aerial vehicle,

[0001] The present invention relates to a remote control device for maneuvering an unmanned aerial vehicle and an unmanned aerial vehicle, and more particularly, to a remote control device for an unmanned aerial vehicle and an unmanned aerial vehicle which are determined based on a reference axis set based on position information of a non- The present invention relates to a remote manipulator for maneuvering an unmanned aerial vehicle.

In recent years, the need for unmanned aerial vehicles is increasing in environments where people can not work. Unmanned aerial vehicles (UAVs) have been widely used in aerial image acquisition and power line inspection of disaster-hit areas, which are difficult to access, or to provide enemy confidential information in battlefield situations, or to carry out reconnaissance missions and surveillance missions through UAVs. A related prior art document is Patent No. 10-1042200.

In flight control of an unmanned aerial vehicle, generally, a user controls a flight of an unmanned aerial vehicle using a controller, which is a remote control device, by using wireless communication, In which the unmanned aerial vehicle is operated. However, in such a case, when the user does not have knowledge of the flying principle of the unmanned aerial vehicle for flight control of the unmanned aerial vehicle, or when the unmanned aerial vehicle has not been abundantly manipulated, many difficulties arise.

Therefore, it is necessary to study the technology to control the flight of unmanned aerial vehicle through more convenient and safe operation.

An object of the present invention is to provide an unmanned aerial vehicle which can control a flight through a more convenient and safe operation.

It is an object of the present invention to provide a remote controller capable of controlling the flight of an unmanned aerial vehicle through more convenient and safe operation.

According to an aspect of the present invention, there is provided an unmanned aerial vehicle capable of flying by the operation of a remote controller, comprising: a wireless communication unit for receiving position information and a direction control signal of the remote controller from the remote controller; A GPS receiver for receiving position information of the unmanned aerial vehicle; A direction unit that recognizes a reference axis set based on the position information of the remote controller and the position information of the unmanned air vehicle, and determines a traveling direction based on the recognized reference axis and the direction control signal; A driving unit for driving the unmanned air vehicle in the determined traveling direction; And a control unit for controlling the wireless communication unit, the GPS receiver, the direction unit, and the driving unit.

According to an aspect of the present invention, there is provided a remote controller for remotely controlling a flight of an unmanned aerial vehicle, comprising: a user input unit for receiving a user input for direction control of the unmanned aerial vehicle; A GPS receiver for receiving position information of the remote controller; A direction control signal corresponding to a user input for direction control and a position information of the remote controller; a wireless communication unit for transmitting the direction control signal to the unmanned aerial vehicle, the direction control signal being based on position information of the remote controller and position information of the unmanned air vehicle A signal for controlling a traveling direction of the unmanned aerial vehicle on the basis of a set reference axis; And a controller for controlling the user input unit, the GPS receiver, and the wireless communication unit.

According to an embodiment of the present invention, since the traveling direction of the unmanned aerial vehicle is determined based on the reference axis based on the position information of the remote controller and the position information of the unmanned aerial vehicle, the operation of the unmanned aerial vehicle is convenient and safe.

1 is a view showing a control system of an unmanned aerial vehicle according to an embodiment of the present invention.
2 is a block diagram of an unmanned aerial vehicle according to an embodiment of the present invention.
FIG. 3 is a block diagram of a remote control unit for controlling the flight of an unmanned aerial vehicle according to an embodiment of the present invention.
4 is a diagram illustrating an example of a remote control user input associated with an embodiment of the present invention.
5 is a flowchart illustrating a method for controlling an unmanned aerial vehicle according to an embodiment of the present invention.

Hereinafter, an unmanned aerial vehicle and a remote controller for the unmanned aerial vehicle according to an embodiment of the present invention will be described with reference to the drawings.

As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. In this specification, the terms "comprising ", or" comprising "and the like should not be construed as necessarily including the various elements or steps described in the specification, Or may be further comprised of additional components or steps.

The term "unmanned aerial vehicle" as used throughout the specification refers to a vehicle capable of remote control even when a person is not on board a flight. For example, a tri-rotor having three propellers, a quad rotor having four propellers, , A hexa rotor with six propellers, and an octrotor with eight propellers. Depending on the number and configuration of the propellers, various types of unmanned aerial vehicles can be implemented.

1 is a view showing a control system of an unmanned aerial vehicle according to an embodiment of the present invention.

As shown, the control system of the unmanned aerial vehicle may include the unmanned air vehicle 100, the remote controller 200, and the GPS satellite 300.

The unmanned air vehicle 100 may be controlled by a control signal received from the remote controller 200.

The unmanned air vehicle 100 and the remote controller 200 can receive GPS signals from the GPS satellites 300, respectively. Each location information can be calculated through the GPS signal. The location information may include longitude, latitude, altitude, and the like.

Reference numeral 400 may be a virtual line connecting the current position (e.g., latitude and longitude) of the unmanned air vehicle 100 with the reference axis and the current position (e.g., latitude and longitude) of the remote controller 200. The reference axis 400 is a reference axis in the traveling direction of the unmanned air vehicle 100. For example, the direction of the arrow displayed on the reference axis 400 may be the direction in which the reference axis 400 advances.

On the other hand, since GPS signals are emitted from satellites in space, signals may be distorted due to the influence of the surrounding environment on the ground. Therefore, it is generally known that the error range is about 10 to 30 meters.

To compensate for this error range, a DGPS (Differential Global Positioning System) scheme can be used. The DGPS calculates the deviation of the error value and transmits the error value to a general GPS receiver to compensate the error of the received GPS signal.

However, according to an embodiment of the present invention, the GPS receiver of the UAV 100 and the GPS receiver of the remote controller 200 have the same deviation since the GPS reception is performed within the same error range at the same time. That is, since the values calculated by the two GPS receivers have the same deviation, the relative position between the two receivers can be precise.

In the following description, the reference axis 400 will be described as a virtual line connecting the latitude and longitude coordinates of the UAV 100 with the latitude and longitude coordinates of the remote controller 200.

2 is a block diagram of an unmanned aerial vehicle according to an embodiment of the present invention.

As shown, the UAV 100 may include a wireless communication unit 110, a GPS receiver 120, a direction unit 130, a direction sensing unit 140, a driving unit 150, and a control unit 160 .

The wireless communication unit 110 may receive a control signal from the remote controller 200. [ The control signal may include a steering signal for steering the traveling direction of the unmanned air vehicle 100 and a steering signal for steering the steering angle of the unmanned air vehicle 100 itself. The wireless communication unit 110 may receive the location information of the remote controller from the remote controller 200. [

The GPS receiver 120 may receive GPS signals from the GPS satellites 300. Position information of the UAV 100 can be grasped from the GPS signal. The location information may include latitude, longitude, altitude value, and the like.

The direction unit 130 recognizes the reference axis 400 and can determine a traveling direction according to the received direction control signal on the basis of the recognized reference axis 400.

The direction sensing unit 140 senses and measures the attitude and direction of the unmanned air vehicle, calculates an angle to be rotated according to the rotation control signal received from the remote controller 200, and determines whether the rotation is completed have.

The direction sensing unit 140 may include at least one of a geomagnetic sensor, a gyro sensor, and an acceleration sensor. The direction sensing unit 140 may include a combination of at least one of a geomagnetic sensor, a gyro sensor, and an acceleration sensor to more accurately measure the attitude and direction of the unmanned aerial vehicle.

Also, the direction unit 130 may calculate a rotation angle to be rotated according to the rotation control signal received in the direction of the current UAV 100 with reference to the reference axis 400.

The direction of the current unmanned air vehicle 100 can be grasped through the direction sensing unit 140. Since the geomagnetic sensor is generally sensitive to the change of the magnetic force, the direction sensing unit 140 may malfunction near a magnet having a large influence on a high-voltage electric wire or a magnetic field. Therefore, The gyro sensor and the acceleration sensor can be used in parallel.

The driving unit 150 may drive the unmanned air vehicle 100 in the determined traveling direction or rotate the unmanned air vehicle 100 according to the calculated rotation angle. The driving unit 150 may include a motor (not shown) that converts electrical energy into mechanical energy and a propeller (not shown) that generates thrust to the unmanned air vehicle 100 by receiving a driving force of a motor .

The control unit 160 may control the wireless communication unit 110, the GPS receiver 120, the direction unit 130, the direction sensing unit 140, and the driving unit 150 as a whole.

FIG. 3 is a block diagram of a remote control unit for controlling the flight of an unmanned aerial vehicle according to an embodiment of the present invention.

As shown, the remote controller 200 includes a user input unit 210, a GPS receiver 220, a wireless communication unit 230, a rotation information generating unit 240, an alarm unit 250, and a control unit 260 .

The user input unit 210 may receive a user input for flight control of the UAV 100. The user input unit 210 may be implemented as a steering lever for user's convenience.

4 is a diagram illustrating an example of a remote control user input associated with an embodiment of the present invention.

As shown in the figure, the user input unit 210 may be implemented as a control lever, and may include a stick portion 211 and a receiving portion 212. The stick portion 211 can move in all directions or in all directions. The direction control signal of the UAV 100 may be generated according to the movement of the stick 211. For example, when the stick portion 211 is pushed toward the unmanned air vehicle 100, a control signal for moving the unmanned air vehicle 100 away from the remote controller 200 can be generated, and the stick portion 211 Is pulled toward the remote controller user side, a steering signal for moving the unmanned air vehicle 100 closer to the remote controller 200 may be generated.

Alternatively, if the stick portion 211 is pushed in the direction of the arrow shown on the stick portion 211, a steering signal for moving the unmanned air vehicle 100 in the direction of the arrow of the reference shaft 400 may be generated, When the stick 211 is pulled in a direction opposite to the arrow shown on the stick 211, a steering signal may be generated in which the unmanned object 100 moves in the direction opposite to the arrow of the reference axis 400.

The GPS receiver 220 may receive GPS signals from the GPS satellites 300. The location information of the remote controller 200 can be grasped from the GPS signal. The location information may include latitude, longitude, altitude value, and the like.

The wireless communication unit 230 may transmit the control signal to the UAV 100. The control signal may include a steering signal for steering the traveling direction of the unmanned air vehicle 100 and a steering signal for steering the steering angle of the unmanned air vehicle 100 itself. The wireless communication unit 230 may transmit the location information of the remote controller 200 to the unmanned air vehicle 100. The wireless communication unit 230 may receive a rotation completion signal indicating completion of the self-rotation from the unmanned air vehicle 100. [

According to an embodiment of the present invention, either one of the stick portion 211 and the receiving portion 212 may be relatively rotated with respect to the other. The rotation information generating unit 240 may generate a rotation control signal based on the relatively rotated angles of the stick portion 211 and the receiving portion 212. [ The rotation control signal refers to a control signal that causes the UAV 100 to rotate itself at the current position.

A scale (for example, a scale marked from 0 to 360 degrees) (not shown) for guiding the rotation angle along the circumference of the stick portion 211 may be displayed on the support portion 212. [ For example, when an arrow displayed on the stick portion 211 is located on a scale corresponding to 0 degrees displayed on the support portion 212, the front portion of the air vehicle 100 is positioned in the direction of the arrow of the reference axis 400 The unmanned aerial vehicle 100 may be rotated. When the arrow mark on the stick portion 211 is positioned at a scale corresponding to 90 degrees displayed on the support portion 212, the front portion of the air vehicle 100 is rotated 90 degrees with respect to the arrow direction of the reference shaft 400 Can be rotated.

The alarm unit 250 can output an alarm signal so that the user can know the rotation completion signal when the unmanned air vehicle 100 receives the rotation completion signal. The output of the alarm signal may be implemented by LED lighting, audio signal output, vibration output, and the like.

The control unit 260 may control the user input unit 210, the GPS receiver 220, the wireless communication unit 230, the rotation information generating unit 240, and the alarm unit 250 in general.

5 is a flowchart illustrating a method for controlling an unmanned aerial vehicle according to an embodiment of the present invention.

The unmanned airplane 100 and the remote controller 200 can receive the current GPS signals from the GPS satellites 300 through the GPS receivers 120 and 220, respectively. The unmanned airplane 100 and the remote controller 200 can calculate their position information through the received GPS signals (S1, S2). For example, the current latitude and longitude coordinates of the UAV 100 and the remote controller 200, respectively, can be calculated.

The remote controller 200 can transmit the calculated position information to the unmanned air vehicle 100 (S3). In this case, the remote controller 200 generates a rotation control signal for the self-rotation of the UAV 100 and transmits the generated rotation control signals together with the UAV 100 together (S4, S5).

The unmanned air vehicle 100 calculates a rotation angle corresponding to the received rotation control signal based on the calculated position information and the position information of the remote controller 200 on the basis of the set reference axis 400, (S6). In the calculation of the rotation angle, direction information on the front portion of the current unmanned air vehicle 100 obtained through the direction sensing unit 140 may be used. Since the geomagnetic sensor is generally sensitive to the change of the magnetic force, the direction sensing unit 140 may malfunction near a magnet having a large influence on a high-voltage electric wire or a magnetic field. Therefore, The gyro sensor and the acceleration sensor can be used in parallel.

Upon completion of the rotation, the unmanned air vehicle 100 may transmit a rotation completion signal to the remote controller 200 based on the data measured by the direction sensing unit 140 (S7).

The remote controller 200 can output an alarm signal according to the completion of the rotation.

The remote controller 200 can generate a direction control signal according to the input user input through the user input unit 210 (S8). Since the direction control signal generation has already been described, it will be omitted here.

The remote controller 200 can transmit the generated direction control signal to the unmanned air vehicle 100 (S9).

The UAV 100 may determine a traveling direction based on the reference axis 400 and the received direction control signal, and may fly in a determined traveling direction (S10).

As described above, since the direction of the unmanned aerial vehicle is determined based on the reference axis based on the position information of the remote controller and the position information of the unmanned aerial vehicle, the control method of the unmanned aerial vehicle according to the embodiment of the present invention, This is convenient and safe.

The flight control method of the unmanned aerial vehicle described above can be implemented in the form of a program command that can be executed through various computer means and recorded on a computer-readable recording medium. At this time, the computer-readable recording medium may include program commands, data files, data structures, and the like, alone or in combination. On the other hand, the program instructions recorded on the recording medium may be those specially designed and configured for the present invention or may be available to those skilled in the art of computer software.

The computer-readable recording medium includes a magnetic recording medium such as a magnetic medium such as a hard disk, a floppy disk and a magnetic tape, an optical medium such as a CD-ROM and a DVD, a magnetic disk such as a floppy disk, A magneto-optical media, and a hardware device specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like.

The recording medium may be a transmission medium, such as a light or metal line, a wave guide, or the like, including a carrier wave for transmitting a signal designating a program command, a data structure, and the like.

The program instructions also include machine language code, such as those generated by the compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

As described above, the unmanned aerial vehicle and the remote control for the unmanned aerial vehicle and the flight control method for the unmanned aerial vehicle are not limited to the configuration and method of the above-described embodiments, but various modifications may be made to the embodiments All or some of the embodiments may be selectively combined.

100: unmanned vehicle
110:
120: GPS receiver
130:
140: Direction sensing unit
150:
160:
200: Remote control
210: user input
220: GPS receiver
230:
240: rotation information generating unit
250: Alarm section
260:
300: GPS satellite

Claims (13)

For unmanned aerial vehicles capable of flying by remote control,
A wireless communication unit for receiving position information and a direction control signal of the remote controller from the remote controller;
A GPS receiver for receiving position information of the unmanned aerial vehicle;
A direction unit that recognizes a reference axis set based on the position information of the remote controller and the position information of the unmanned air vehicle, and determines a traveling direction based on the recognized reference axis and the direction control signal;
A driving unit for driving the unmanned air vehicle in the determined traveling direction; And
And a controller for controlling the wireless communication unit, the GPS receiver, the direction unit, and the driving unit. The method according to claim 1,
Wherein the reference axis is a virtual line connecting the current position of the unmanned air vehicle and the current position of the remote controller. The method according to claim 1,
The unmanned air vehicle further includes a direction sensing unit,
Wherein the wireless communication unit receives the rotation steering signal from the remote controller,
Wherein the direction unit calculates a rotation angle of the unmanned air vehicle corresponding to the rotation control signal using the direction information measured by the direction sensing unit,
Wherein the driving unit rotates the unmanned aerial vehicle based on the calculated rotation angle. The method of claim 3,
Wherein the direction sensing unit includes at least one of a geomagnetic sensor, a gyro sensor, and an acceleration sensor. The method of claim 3,
When the rotation of the unmanned aerial vehicle is completed according to the calculated rotation angle,
Wherein the wireless communication unit transmits a rotation completion signal to the remote controller. A remote control for remotely controlling a flight of a UAV,
A user input for receiving a user input for direction control of the unmanned aerial vehicle;
A GPS receiver for receiving position information of the remote controller;
A direction control signal corresponding to a user's input for direction control and a position information of the remote controller; and a wireless communication unit for transmitting the direction control signal to the unmanned air vehicle, wherein the direction control signal is based on position information of the remote controller and position information of the unmanned air vehicle A signal for controlling a traveling direction of the unmanned aerial vehicle on the basis of a set reference axis; And
And a controller for controlling the user input unit, the GPS receiver, and the wireless communication unit. The method according to claim 6,
Wherein the reference axis is a virtual line connecting the current position of the unmanned air vehicle and the current position of the remote controller. The method according to claim 6,
Wherein the user input unit comprises a steering lever capable of moving vertically and horizontally,
Wherein the direction control signal comprises a first steering signal generated by pushing the steering lever toward the unmanned aerial vehicle and a second steering signal generated when the steering lever is pulled toward the remote control user side. A manipulator. 9. The method of claim 8,
Wherein the first steering signal is a control signal for moving the unmanned air vehicle away from the remote control,
And the second steering signal is a control signal for moving the unmanned air vehicle close to the remote controller. 9. The method of claim 8,
Wherein the remote controller further comprises a rotation information generator for generating a rotation control signal for controlling the unmanned air vehicle so that the unmanned air vehicle can rotate by itself based on the reference axis. 11. The method of claim 10,
Wherein the steering lever includes a stick portion and a receiving portion,
Wherein one of the stick portion and the receiving portion is relatively rotatable with respect to the other,
Wherein the rotation information generating unit generates the rotation control signal based on a relative rotation degree of the stick unit and the support unit. 11. The method of claim 10,
Wherein the wireless communication unit receives a rotation completion signal indicating that the rotation according to the rotation control signal has been completed from the unmanned air vehicle. 13. The remote control device of claim 12,
And an alarm unit for outputting an alarm signal in response to the reception of the rotation completion signal.
KR1020150114386A 2015-08-13 2015-08-13 Unmanned aerial vehicle and remote controller for the unmanned aerial vehicle KR101725649B1 (en)

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KR101938836B1 (en) * 2017-06-28 2019-01-16 (주)자이언트드론 The system which supports a control process of a drone

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KR101615739B1 (en) * 2015-08-17 2016-04-26 박시몽 Drone and method for measuring distance from user terminal to drone

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KR20090073630A (en) * 2007-12-31 2009-07-03 경남도립남해대학 산학협력단 Security system for unmanned aerial vehicle
KR101615739B1 (en) * 2015-08-17 2016-04-26 박시몽 Drone and method for measuring distance from user terminal to drone

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WO2022030673A1 (en) * 2020-08-06 2022-02-10 김항래 Drone controller and control method therefor

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