KR101670476B1 - Delivery device, charging system and method of operating charging system - Google Patents

Abstract

The delivery device includes a drone, a delivery box, and a wireless power receiver. The unmanned airplane receives power from the flight power unit and drives multiple propellers to the ground. The delivery box is coupled with the connection part included in the unmanned airplane, and has a storage space for accommodating the objects therein. The delivery box is cylindrical. The wireless power receiver is coupled to a second side of the delivery box that is opposite the first side of the delivery box coupled with the connection and is disposed outside the delivery box and receives power via the inner coil based on the inductive charging scheme, It is provided on an airplane. The wireless power receiver is cylindrical. The delivery device according to the embodiments of the present invention can increase the performance of the delivery service by supplying power wirelessly to the wireless airplane based on the inductive charging method.

Description

TECHNICAL FIELD [0001] The present invention relates to a delivery device, a charging system, and a method of operating the charging system.

The present invention relates to a charging apparatus, and more particularly, to a delivery apparatus, a charging system, and a method of operating the charging system.

Unmanned airplanes have been used in the military for the purposes of reconnaissance and surveillance, but in recent years, various attempts have been made to deliver goods using unmanned airplanes.

If the weight of the object is increased or the flight distance of the unmanned airplane is increased when the object is delivered using the unmanned airplane, the power consumed by the unmanned airplane may increase. Therefore, it is essential to supply sufficient power to the unmanned airplane in order to provide the courier service by using the unmanned airplane.

The present invention relates to a wireless energy transmission system based on a magnetic field resonance transmission system, which is based on the research and development project of the Ministry of Education, Science and Technology and the Korea Research Foundation, Technology "and the project sponsored by the Korea Advanced Institute of Science and Technology as part of the national research and development project of the Ministry of Education, Science and Technology and the Korea Research Foundation. Project number: 2010-0029374, Research project: Basic research project, .

An object of the present invention is to provide a delivery device capable of increasing performance by supplying power wirelessly to a wireless airplane based on an inductive charging method.

An object of the present invention is to provide a charging system capable of increasing performance by supplying power wirelessly to a wireless airplane based on an inductive charging method.

An object of the present invention is to provide a method of operating a charging system capable of increasing performance by supplying power wirelessly to a wireless airplane based on an inductive charging method.

In order to accomplish one object of the present invention, a delivery device according to embodiments of the present invention includes an unmanned aerial vehicle, a delivery box, and a wireless power receiver. The unmanned airplane receives power from a flight power unit and drives a plurality of propellers to fly to the ground. The delivery box is coupled to a connection part included in the unmanned airplane, and has a storage space for accommodating an object therein. The delivery box is cylindrical. Wherein the wireless power receiver is coupled to a second side of the delivery box opposite the first side of the delivery box coupled to the connection and disposed outside the delivery box, And provides it to the wireless airplane. The wireless power receiver is cylindrical.

In an exemplary embodiment, the delivery apparatus may further include a plurality of adjustment wheels. Each of the plurality of adjusting wheels may include an adjusting shaft and an adjusting wheel. The plurality of adjustment wheels can engage a third surface of the delivery box that is perpendicular to the first surface of the delivery box. The adjustment shaft may engage a first end of the delivery box with a third surface of the delivery box. The adjustment wheel may engage with the second end of the adjustment shaft.

In an exemplary embodiment, the delivery device may adjust the distance between the wireless power receiver and a charge station that provides the power using the plurality of adjustment wheels.

In an exemplary embodiment, the adjustment shaft may be adjusted in a first direction relative to a vertical direction of a third surface of the delivery box and a second direction corresponding to an opposite direction of the first direction.

In an exemplary embodiment, the charging efficiency of the wireless power receiver may increase as the distance between the charging station and the delivery device decreases.

In an exemplary embodiment, the delivery device may include a plurality of adjustment wheels coupled to a second side of the delivery box opposite the first side of the delivery box, To adjust the distance between the providing charge station and the wireless power receiver.

In an exemplary embodiment, the adjustment shaft included in each of the plurality of adjustment wheels may be disposed in a third direction with respect to a vertical direction of the second surface of the delivery box, and a fourth direction with a direction opposite to the third direction Lt; / RTI >

In an exemplary embodiment, the core surrounding the inner coil included in the wireless power receiver may be configured as a ferrite to block electromagnetic interference that occurs during charging.

In an exemplary embodiment, the second side of the delivery box may comprise a ferrite layer blocking the electromagnetic interference transmitted to the delivery box.

In order to accomplish one aspect of the present invention, a charging station according to embodiments of the present invention includes a wireless power transmitter and a station. The wireless power transmitter has an inner coil disposed therein for wirelessly transmitting power based on an inductive charging scheme. The wireless power transmitter is cylindrical. The station is coupled with the wireless power transmitter to reduce the distance between the wireless power transmitter and the wireless power receiver when a delivery device with a wireless power receiver near the wireless power transmitter arrives. The station is a funnel shaped.

In an exemplary embodiment, a core surrounding the inner coil included in the wireless power transmitter may be constructed of a ferrite to block electromagnetic interference occurring during charging.

According to an aspect of the present invention, there is provided a charging system including a charge station and a delivery device. The delivery device includes a drone, a delivery box, and a wireless power receiver. The charging station includes a wireless power transmitter and a station. The charging station transmits power wirelessly. The delivery device receives the power wirelessly. The unmanned airplane receives power from a flight power unit and drives a plurality of propellers to fly to the ground. The delivery box is coupled to a connection part included in the unmanned airplane, and has a storage space for accommodating an object therein. The delivery box is cylindrical. Wherein the wireless power receiver is coupled to a second side of the delivery box opposite the first side of the delivery box coupled to the connection and disposed outside the delivery box, And supplied to the wireless airplane through the inner coil. The wireless power receiver is cylindrical. The wireless power transmitter has a second inner coil disposed therein to wirelessly transmit power based on an inductive charging scheme. The wireless power transmitter is cylindrical. The station is coupled with the wireless power transmitter to reduce the distance between the wireless power transmitter and the wireless power receiver when a delivery device with a wireless power receiver near the wireless power transmitter arrives. The station is a funnel shaped.

In an exemplary embodiment, the delivery apparatus may further include a plurality of adjustment wheels. Each of the plurality of adjusting wheels may include an adjusting shaft and an adjusting wheel. The plurality of adjustment wheels can engage a third surface of the delivery box that is perpendicular to the first surface of the delivery box. The adjustment shaft may engage a first end of the delivery box with a third surface of the delivery box. The adjustment wheel may engage with the second end of the adjustment shaft. The delivery device may adjust the distance between the charge station and the wireless power receiver using the plurality of adjustment wheels to provide the power.

According to an aspect of the present invention, there is provided a method of operating a delivery device, the method comprising: a delivery device reaching a funnel-shaped station included in a charge station; Moving the delivery device to a lower portion of the station using wheels, and aligning the delivery device with a wireless power transmitter included in the charge station.

According to an aspect of the present invention, there is provided a method of operating a charging system, the method comprising: a delivery device reaching a funnel-shaped station included in a charge station; Aligning the delivery device with the wireless power transmitter included in the charging station using wheels, transmitting the power by the wireless power transmitter, and receiving power from the wireless power receiver included in the delivery device .

The charging system according to the embodiments of the present invention can increase the efficiency of the delivery service by supplying power wirelessly to the wireless airplane based on the inductive charging method.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a view of a delivery apparatus according to embodiments of the present invention.
2 is a view showing an example of an unmanned airplane included in the delivery apparatus of FIG.
3 is a view showing an example of a delivery box included in the delivery apparatus of FIG.
4 is a view showing an example of a coil included in a wireless power receiver included in the delivery apparatus of FIG.
5 is a diagram showing a charging system including a delivery device according to one embodiment of the present invention.
FIG. 6 is a view for explaining an example of operation of the adjusting wheel included in the delivery apparatus of FIG. 5;
FIG. 7 is a view for explaining another operation example of the adjusting wheel included in the delivery apparatus of FIG. 5. FIG.
8 is a diagram illustrating charging efficiencies along a distance between a wireless power transmitter and a wireless power receiver.
9 is a diagram of a charge station according to embodiments of the present invention.
10 is a diagram showing an example of a coil included in a wireless power transmitter included in the charge station of FIG.
11 is a diagram illustrating a charging system in accordance with embodiments of the present invention.
12 is a flowchart showing an operation method of the delivery apparatus according to the embodiments of the present invention.
13 is a flow chart illustrating a method of operating a charging system in accordance with embodiments of the present invention.

For the embodiments of the invention disclosed herein, specific structural and functional descriptions are set forth for the purpose of describing an embodiment of the invention only, and it is to be understood that the embodiments of the invention may be practiced in various forms, The present invention should not be construed as limited to the embodiments described in Figs.

The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms may be used for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between. Other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprise", "having", and the like are intended to specify the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, , Steps, operations, components, parts, or combinations thereof, as a matter of principle.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be construed as meaning consistent with meaning in the context of the relevant art and are not to be construed as ideal or overly formal in meaning unless expressly defined in the present application .

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The same reference numerals are used for the same constituent elements in the drawings and redundant explanations for the same constituent elements are omitted.

FIG. 1 is a view showing a delivery apparatus according to an embodiment of the present invention, and FIG. 2 is a view showing an example of an unmanned airplane included in the delivery apparatus of FIG.

1 and 2, the delivery apparatus 10 includes a UAV 100, a delivery box 300, and a wireless power receiver 500. The unmanned airplane 100 receives power from the flight power unit 110 and drives the plurality of propellers 130 to fly to the ground. The UAV 100 can be used to deliver goods. When the delivery service is performed using the UAV 100, the efficiency of the delivery service can be increased.

The delivery box 300 is coupled to the connection unit 150 included in the UAV 100 and has a storage space for accommodating objects therein. The connection unit 150 included in the UAV 100 may be connected to the flight power unit 110 or a plurality of propellers 130. [ The delivery box 300 may be coupled to the UAV 100 via the connection unit 150. The delivery box 300 may receive a delivery item. The size of the delivery box 300 may vary depending on the delivery item. If the delivery item is large, the size of the delivery box 300 may be large, and if the delivery item is small, the delivery box 300 may be small. Accordingly, the size of the delivery box 300 coupled to the connection part 150 included in the UAV 100 may vary depending on the size of the delivery item. The shape of the delivery box 300 may be various forms as well as cylindrical depending on the type and shape of the delivery item.

3 is a view showing an example of a delivery box included in the delivery apparatus of FIG.

1 and 3, the wireless power receiver 500 includes a second surface 330 of the delivery box 300 facing the first surface 310 of the delivery box 300 coupled with the connection 150, And may be disposed outside the delivery box 300. [ For example, the delivery box 300 may include a first side 310, a second side 330, and a third side 350. The first surface 310 of the delivery box 300 may engage with the connection portion 150 included in the UAV 100. The first side 310 of the delivery box 300 may face the second side 330 of the delivery box 300. The wireless power receiver 500 may be coupled to the second side 330 of the delivery box 300 opposite the first side 310 of the delivery box 300. The wireless power receiver 500 may be located outside the delivery box 300.

 The power PWR is supplied through the inner coil 510 to the battery 190 included in the unmanned airplane 100 based on the inductive charging method. The wireless power receiver 500 is cylindrical. In the inductive charging scheme, the power PWR can be transmitted wirelessly using the coils 510 included in the wireless power transmitter 400 and the wireless power receiver 500 as described later with reference to FIG. For example, if there is a delivery item in the delivery box 300, the power (PWR) consumed in the UAV 100 may increase. The power PWR of the UAV 100 may be exhausted while the delivery device 10 including the UAV 100 performs the delivery service. When the power PWR of the UAV 100 is exhausted, the delivery apparatus 10 can receive the power PWR through the wireless power receiver 500 coupled to the delivery box 300. When the delivery apparatus 10 receives the power PWR through the wireless power receiver 500, the wireless power receiver 500 transmits power PWR to the flight power unit 110 included in the UAV 100 Can supply. The UAV 100 can perform delivery service using the power (PWR) received through the wireless receiver.

4 is a view showing an example of a coil included in a wireless power receiver included in the delivery apparatus of FIG.

4, a wireless power receiver 500 may include a core 530 that surrounds a coil 510 and a coil 510. The wireless power receiver 500 may be cylindrical. The core 530 included in the wireless power receiver 500 may surround the coil 510. For example, when the power (PWR) of the UAV 100 is exhausted, the delivery device 10 can receive the power PWR through the wireless power receiver 500 coupled to the delivery box 300 have. The delivery device 10 may access the wireless power transmitter 400 in order for the delivery device 10 to receive the power PWR through the wireless power receiver 500. [ Electromagnetic interference (EMI) is generated around the wireless power transmitter 400 and the wireless power receiver 500 while the delivery apparatus 10 accesses the wireless power transmitter 400 to receive the power PWR. Lt; / RTI > If electromagnetic interference occurs around the wireless power transmitter 400 and the wireless power receiver 500, electromagnetic interference can affect delivery objects contained in the delivery box 300. The ferrite core 530 surrounds the periphery of the coil 510 included in the wireless power receiver 500 to block electromagnetic interference occurring in the vicinity of the wireless power transmitter 400 and the wireless power receiver 500. [ There is a need.

The flight power unit 110 may include a control module and a communication module. The power PWR transmitted through the wireless power receiver 500 may be transmitted to the battery 190 based on a control signal generated from the control module. The communication module may be a global positioning system (GPS) for aligning the delivery device 10 and the charging station 20. [

The delivery apparatus 10 according to embodiments of the present invention receives the power PWR wirelessly based on the inductive charging method and provides the power to the battery 190 included in the unmanned airplane 100 to improve the efficiency of the delivery service .

5 is a diagram showing a charging system including a delivery device according to one embodiment of the present invention.

Referring to FIG. 5, the delivery device 10 includes a UAV 100, a delivery box 300, a wireless power receiver 500, and a plurality of control wheels 210 and 230. The unmanned airplane 100 receives power from the flight power unit 110 and drives the plurality of propellers 130 to fly to the ground. The delivery box 300 is coupled to the connection unit 150 included in the UAV 100 and has a storage space for accommodating objects therein. Delivery box 300 is cylindrical. The wireless power receiver 500 is coupled to the second side 330 of the delivery box 300 facing the first side 310 of the delivery box 300 coupled with the connection 150 and is coupled to the second side 330 of the delivery box 300, And supplies power PWR through the inner coil 510 to the battery 190 included in the unmanned airplane 100 based on the inductive charging method. The wireless power receiver 500 is cylindrical.

Each of the plurality of adjustment wheels 210 and 230 may include an adjustment shaft 211 and an adjustment wheel 213. In FIG. 5, the plurality of control wheels 210 and 230 may include two control wheels 210 and 230, but the control wheels may include two or more control wheels.

For example, the delivery box 300 may include a first side 310, a second side 330, and a third side 350. The first surface 310 of the delivery box 300 may engage with the connection portion 150 included in the UAV 100. The first side 310 of the delivery box 300 may face the second side 330 of the delivery box 300. The third surface 350 of the delivery box 300 may be perpendicular to the first surface 310 of the delivery box 300.

The plurality of adjustment wheels 210 and 230 may engage with a third surface 350 of the delivery box 300 that is perpendicular to the first surface 310 of the delivery box 300. The adjustment shaft 211 can be engaged with the third surface 350 of the delivery box 300 at the first end. The adjustment wheel 213 may engage with the second end of the adjustment shaft 211.

In an exemplary embodiment, the delivery device 10 includes a plurality of regulating wheels 210, 230 to provide a power PWR between the charge station 20 and the wireless power receiver 500, Can be adjusted. 9, the charging station 20 includes a wireless power transmitter 400 and a station 600. [ The wireless power transmitter 400 is deployed with an inner coil 410 to deliver power PWR wirelessly based on an inductive charging scheme. The station 600 may determine the distance D_CD between the wireless power transmitter 400 and the wireless power receiver 500 when the delivery device 10 having the wireless power receiver 500 near the wireless power transmitter 400 arrives. ) To reduce the power consumption of the wireless power transmitter (400). Station 600 is a funnel shaped.

It is necessary to reduce the distance D_CD between the wireless power transmitter 400 and the wireless power receiver 500 to increase the charging efficiency of the wireless power receiver 500. [ For example, a plurality of control wheel portions 210, 230 included in the delivery device 10 may be used to reduce the distance D_CD between the wireless power transmitter 400 and the wireless power receiver 500. When the delivery apparatus 10 reaches the funnel-shaped station 600, the adjustment wheels 213 included in the adjustment wheels 210 and 230 can contact the surface of the station 600. [ When the adjustment wheel 213 included in the adjustment wheels 210 and 230 contacts the surface of the station 600, the adjustment wheel 213 can rotate. The rotation of the adjustment wheel 213 allows the delivery device 10 to move to the center of the funnel-shaped station 600. A wireless power transmitter 400 may be disposed in the center of the funnel-shaped station 600. The distance D_CD between the wireless power transmitter 400 and the wireless power receiver 500 can be minimized when the delivery device 10 is moved to the center of the funnel-shaped station 600. The power transfer efficiency between the wireless power transmitter 400 and the wireless power receiver 500 can be maximized if the distance D_CD between the wireless power transmitter 400 and the wireless power receiver 500 is minimized.

FIG. 6 is a view for explaining an example of operation of the adjusting wheel included in the delivery apparatus of FIG. 5;

Referring to FIG. 6, each of the plurality of adjusting wheels 210 and 230 may include an adjusting shaft 211 and an adjusting wheel 213. The plurality of adjustment wheels 210 and 230 may engage with a third surface 350 of the delivery box 300 that is perpendicular to the first surface 310 of the delivery box 300. The adjustment shaft 211 can be engaged with the third surface 350 of the delivery box 300 at the first end. The adjustment wheel 213 may engage with the second end of the adjustment shaft 211.

In the exemplary embodiment, the adjustment shaft 211 is disposed in the first direction D1 and in the opposite direction to the first direction D1 with respect to the vertical direction of the third surface 350 of the delivery box 300 And can be adjusted in the second direction D2. For example, when the delivery apparatus 10 reaches the funnel-shaped station 600, the adjustment wheels 213 included in the adjustment wheels 210 and 230 may contact the surface of the station 600. [ When the adjustment wheel 213 included in the adjustment wheels 210 and 230 contacts the surface of the station 600, the adjustment shaft 211 moves in the first direction D1 and the second direction D2, It is possible to prevent the delivery device 10 from being overturned at the station 600 of FIG. The first direction D1 may be the direction from the delivery box 300 to the UAV 100 and the second direction D2 may be the direction from the delivery box 300 to the wireless power receiver 500 . The delivery device 10 moves to the center of the funnel-shaped station 600 using the adjustment shaft 211 and the rotating adjusting wheel 213 which are adjusted in the first direction D1 and the second direction D2 . A wireless power transmitter 400 may be disposed in the center of the funnel-shaped station 600. The distance D_CD between the wireless power transmitter 400 and the wireless power receiver 500 can be minimized when the delivery device 10 is moved to the center of the funnel-shaped station 600. The power transfer efficiency between the wireless power transmitter 400 and the wireless power receiver 500 can be maximized if the distance D_CD between the wireless power transmitter 400 and the wireless power receiver 500 is minimized.

In an exemplary embodiment, the core 530 surrounding the inner coil 510 included in the wireless power receiver 500 may be configured as a ferrite to block electromagnetic interference occurring during charging, The second face 330 of the first housing 300 may include a ferrite layer blocking electromagnetic interference transmitted to the delivery box 300. For example, when the delivery device 10 accesses the wireless power transmitter 400 and receives power (PWR), the wireless power transmitter 400 and the wireless power receiver 500 may be subjected to electromagnetic interference , EMI) may occur. If electromagnetic interference occurs around the wireless power transmitter 400 and the wireless power receiver 500, electromagnetic interference can affect delivery objects contained in the delivery box 300. The ferrite core 530 surrounds the periphery of the coil 510 included in the wireless power receiver 500 to block electromagnetic interference occurring in the vicinity of the wireless power transmitter 400 and the wireless power receiver 500. [ There is a need. The second face 330 of the delivery box 300 may be formed of a ferrite layer to prevent electromagnetic interference occurring in the vicinity of the wireless power transmitter 400 and the wireless power receiver 500 from being transmitted to the delivery box 300. [ Lt; / RTI >

FIG. 7 is a view for explaining another operation example of the adjusting wheel included in the delivery apparatus of FIG. 5. FIG.

Referring to FIG. 7, each of the plurality of adjustment wheels 210 and 230 may include an adjustment shaft 211 and an adjustment wheel 213. The plurality of adjustment wheels 210 and 230 may engage with the second surface 330 of the delivery box 300 facing the first surface 310 of the delivery box 300. The adjustment shaft 211 can be engaged with the second surface 330 of the delivery box 300 at the first end. The adjustment wheel 213 may engage with the second end of the adjustment shaft 211.

The delivery device 10 is coupled to a second side 330 of the delivery box 300 facing the first side 310 of the delivery box 300 and includes a plurality of control wheels Units 210 and 230 may be used to adjust the distance D_CD between the charging station 20 and the wireless power receiver 500 providing the power PWR.

The adjustment shaft 211 included in each of the plurality of adjustment wheels 210 and 230 is disposed in the third direction (the first direction) with respect to the vertical direction of the second surface 330 of the delivery box 300 D3 and the fourth direction D4 corresponding to the opposite direction of the third direction D3. For example, when the delivery apparatus 10 reaches the funnel-shaped station 600, the adjustment wheels 213 included in the adjustment wheels 210 and 230 may contact the surface of the station 600. [ When the adjustment wheel 213 included in the adjustment wheels 210 and 230 contacts the surface of the station 600, the adjustment shaft 211 moves in the third direction D3 and the fourth direction D4, It is possible to prevent the delivery device 10 from being overturned at the station 600 of FIG.

The delivery device 10 moves to the center of the funnel-shaped station 600 using the adjustment shaft 211 and the rotating adjusting wheel 213 which are adjusted in the third direction D3 and the fourth direction D4 . A wireless power transmitter 400 may be disposed in the center of the funnel-shaped station 600. The distance D_CD between the wireless power transmitter 400 and the wireless power receiver 500 can be minimized when the delivery device 10 is moved to the center of the funnel-shaped station 600. The power transfer efficiency between the wireless power transmitter 400 and the wireless power receiver 500 can be maximized if the distance D_CD between the wireless power transmitter 400 and the wireless power receiver 500 is minimized.

The delivery apparatus 10 according to embodiments of the present invention receives the power PWR wirelessly based on the inductive charging method and provides the power to the battery 190 included in the unmanned airplane 100 to improve the efficiency of the delivery service .

8 is a diagram illustrating charging efficiencies along a distance between a wireless power transmitter and a wireless power receiver.

5 and 8, a wireless power transmitter 400 may be included in the charging station 20, and a wireless power receiver 500 may be included in the delivery device 10. For example, if the distance D_CD between the charging station 20 and the delivery device 10 decreases, the distance D_CD between the wireless power transmitter 400 and the wireless power receiver 500 may decrease. As the distance D_CD between the charging station 20 and the delivery device 10 increases, the distance D_CD between the wireless power transmitter 400 and the wireless power receiver 500 may increase.

In an exemplary embodiment, the charging efficiency of the wireless power receiver 500 may vary based on the distance (D_CD) between the wireless power transmitter 400 and the wireless power receiver 500. For example, as the distance D_CD between the wireless power transmitter 400 and the wireless power receiver 500 decreases, the charging efficiency of the wireless power receiver 500 may increase. Also, as the distance D_CD between the wireless power transmitter 400 and the wireless power receiver 500 increases, the charging efficiency of the wireless power receiver 500 may decrease.

9 is a diagram of a charge station according to embodiments of the present invention.

Referring to FIG. 9, the charging station 20 includes a wireless power transmitter 400 and a station 600. The wireless power transmitter 400 is deployed with an inner coil 410 to deliver power PWR wirelessly based on an inductive charging scheme. The wireless power transmitter 400 is cylindrical. In an inductive charging scheme, the charging station 20 may provide power PWR through the coil 410 included in the wireless power transmitter 400. [ Delivery device 10 may receive power PWR delivered from charging station 20 via coil 510 included in wireless power receiver 500. [ The station 600 may determine the distance D_CD between the wireless power transmitter 400 and the wireless power receiver 500 when the delivery device 10 having the wireless power receiver 500 near the wireless power transmitter 400 arrives. ) To reduce the power consumption of the wireless power transmitter (400). Station 600 is a funnel shaped.

It is necessary to reduce the distance D_CD between the wireless power transmitter 400 and the wireless power receiver 500 to increase the charging efficiency of the wireless power receiver 500. [ For example, a plurality of control wheel portions 210, 230 included in the delivery device 10 may be used to reduce the distance D_CD between the wireless power transmitter 400 and the wireless power receiver 500. To minimize the distance D_CD between the wireless power transmitter 400 and the wireless power receiver 500, the shape of the station 600 may be a funnel shape. When the station 600 is in the shape of a funnel, the delivery device 10 can be moved to the center of the funnel-shaped station 600 by the rotational movement of the adjustment wheel 213. A wireless power transmitter 400 may be disposed in the center of the funnel-shaped station 600. The distance D_CD between the wireless power transmitter 400 and the wireless power receiver 500 can be minimized when the delivery device 10 is moved to the center of the funnel-shaped station 600. The power transfer efficiency between the wireless power transmitter 400 and the wireless power receiver 500 can be maximized if the distance D_CD between the wireless power transmitter 400 and the wireless power receiver 500 is minimized.

10 is a diagram showing an example of a coil included in a wireless power transmitter included in the charge station of FIG.

10, a wireless power transmitter 400 may include a core 430 surrounding a coil 410 and a coil 410. The wireless power transmitter 400 may be cylindrical. The core 430 included in the wireless power transmitter 400 may surround the coil 410. For example, when the power of the UAV 100 is exhausted, the delivery apparatus 10 can receive the power PWR through the wireless power receiver 500 coupled to the delivery box 300. The delivery device 10 may access the wireless power transmitter 400 in order for the delivery device 10 to receive the power PWR through the wireless power receiver 500. [ Electromagnetic interference (EMI) is generated around the wireless power transmitter 400 and the wireless power receiver 500 while the delivery apparatus 10 accesses the wireless power transmitter 400 to receive the power PWR. Lt; / RTI > If electromagnetic interference occurs around the wireless power transmitter 400 and the wireless power receiver 500, electromagnetic interference can affect delivery objects contained in the delivery box 300. The ferrite core 430 surrounds the coil 410 included in the wireless power transmitter 400 to block the electromagnetic interference occurring in the vicinity of the wireless power transmitter 400 and the wireless power receiver 500. [ There is a need. For example, the core 430 surrounding the inner coil 410 included in the wireless power transmitter 400 may be composed of ferrite to block electromagnetic interference occurring during charging.

The charging station 20 according to embodiments of the present invention can increase the efficiency of delivery service by providing power (PWR) wirelessly to the delivery device 10 including the wireless airplane based on an inductive charging scheme .

11 is a diagram illustrating a charging system in accordance with embodiments of the present invention.

Referring to Fig. 11, the charging system 30 includes a charging station 20 and a delivery device 10. As shown in Fig. Delivery device 10 includes a UAV 100, a delivery box 300, and a wireless power receiver 500. The charging station 20 includes a wireless power transmitter 400 and a station 600. The charge station 20 transmits the power PWR wirelessly. Delivery device 10 receives power PWR wirelessly.

The unmanned airplane 100 receives power from the flight power unit 110 and drives the plurality of propellers 130 to fly to the ground. The UAV 100 can be used to deliver goods. When the delivery service is performed using the UAV 100, the efficiency of the delivery service can be increased.

The delivery box 300 is coupled to the connection unit 150 included in the UAV 100 and has a storage space for accommodating objects therein. The connection part 150 included in the UAV 100 may be connected to a driving device or a plurality of propellers. The delivery box 300 may be coupled to the UAV 100 via the connection unit 150. The size of the delivery box 300 may vary depending on the delivery item. The shape of the delivery box 300 may be various forms as well as cylindrical depending on the type and shape of the delivery item.

The wireless power receiver 500 is coupled to the second side 330 of the delivery box 300 facing the first side 310 of the delivery box 300 coupled with the connection 150 and is coupled to the second side 330 of the delivery box 300, Can be disposed outside. For example, the delivery box 300 may include a first side 310, a second side 330, and a third side 350. The first surface 310 of the delivery box 300 may engage with the connection portion 150 included in the UAV 100. The first side 310 of the delivery box 300 may face the second side 330 of the delivery box 300. The wireless power receiver 500 may be coupled to the second side 330 of the delivery box 300 opposite the first side 310 of the delivery box 300. The wireless power receiver 500 may be located outside the delivery box 300.

(PWR) is supplied through the first inner coil 510 to the battery 190 included in the unmanned airplane 100 based on the inductive charging method. The wireless power receiver 500 is cylindrical. In the inductive charging scheme, the power PWR can be transmitted wirelessly using the coils 510 included in the wireless power transmitter 400 and the wireless power receiver 500. For example, if there is a delivery item in the delivery box 300, the power (PWR) consumed in the UAV 100 may increase. The power PWR of the UAV 100 may be exhausted while the delivery device 10 including the UAV 100 performs the delivery service. When the power PWR of the UAV 100 is exhausted, the delivery apparatus 10 can receive the power PWR through the wireless power receiver 500 coupled to the delivery box 300. When the delivery apparatus 10 receives the power PWR through the wireless power receiver 500, the wireless power receiver 500 transmits power PWR to the flight power unit 110 included in the UAV 100 Can supply. The UAV 100 can perform delivery service using the power (PWR) received through the wireless receiver.

The wireless power transmitter 400 has a second inner coil 410 disposed therein to wirelessly transmit power PWR based on an inductive charging scheme. The wireless power transmitter 400 is cylindrical. The station 600 may determine the distance D_CD between the wireless power transmitter 400 and the wireless power receiver 500 when the delivery device 10 having the wireless power receiver 500 near the wireless power transmitter 400 arrives. ) To reduce the power consumption of the wireless power transmitter (400). Station 600 is a funnel shaped.

In the exemplary embodiment, the delivery apparatus 10 may further include a plurality of adjustment wheels 210, 230. Each of the plurality of adjustment wheels 210 and 230 may include an adjustment shaft 211 and an adjustment wheel 213. The plurality of adjustment wheels 210 and 230 may engage with a third surface 350 of the delivery box 300 that is perpendicular to the first surface 310 of the delivery box 300. The adjustment shaft 211 can be engaged with the third surface 350 of the delivery box 300 at the first end. The adjustment wheel 213 may engage with the second end of the adjustment shaft 211. The delivery apparatus 10 can adjust the distance D_CD between the charge station 20 and the wireless power receiver 500 that provides the power PWR using the plurality of control wheels 210 and 230.

It is necessary to reduce the distance D_CD between the wireless power transmitter 400 and the wireless power receiver 500 to increase the charging efficiency of the wireless power receiver 500. [ For example, a plurality of control wheel portions 210, 230 included in the delivery device 10 may be used to reduce the distance D_CD between the wireless power transmitter 400 and the wireless power receiver 500. To minimize the distance D_CD between the wireless power transmitter 400 and the wireless power receiver 500, the shape of the station 600 may be a funnel shape. When the station 600 is in the shape of a funnel, the delivery device 10 can be moved to the center of the funnel-shaped station 600 by the rotational movement of the adjustment wheel 213. A wireless power transmitter 400 may be disposed in the center of the funnel-shaped station 600. The distance D_CD between the wireless power transmitter 400 and the wireless power receiver 500 can be minimized when the delivery device 10 is moved to the center of the funnel-shaped station 600. The power transfer efficiency between the wireless power transmitter 400 and the wireless power receiver 500 can be maximized if the distance D_CD between the wireless power transmitter 400 and the wireless power receiver 500 is minimized.

12 is a flowchart showing an operation method of the delivery apparatus according to the embodiments of the present invention.

1 and 12, in the operation method of the delivery apparatus 10 according to the present invention, the delivery apparatus 10 reaches the funnel-shaped station 600 included in the charge station 20 (S100). The delivery device 10 moves to the lower portion of the station 600 using the adjustment wheels 210 and 230 included in the delivery device 10 at step S300. For example, a plurality of control wheel portions 210, 230 included in the delivery device 10 may be used to reduce the distance D_CD between the wireless power transmitter 400 and the wireless power receiver 500. To minimize the distance D_CD between the wireless power transmitter 400 and the wireless power receiver 500, the shape of the station 600 may be a funnel shape.

The delivery device 10 is aligned with the wireless power transmitter 400 included in the charge station 20. For example, if the shape of the station 600 is a funnel shape, The delivery device 10 can move to the center of the funnel-shaped station 600. [ A wireless power transmitter 400 may be disposed in the center of the funnel-shaped station 600. The distance D_CD between the wireless power transmitter 400 and the wireless power receiver 500 can be minimized when the delivery device 10 is moved to the center of the funnel-shaped station 600. The power transfer efficiency between the wireless power transmitter 400 and the wireless power receiver 500 can be maximized if the distance D_CD between the wireless power transmitter 400 and the wireless power receiver 500 is minimized.

13 is a flow chart illustrating a method of operating a charging system in accordance with embodiments of the present invention.

Referring to FIG. 13, in the operation method of the charging system 30, the delivery apparatus 10 reaches the funnel-shaped station 600 included in the charge station 20 (S200). The delivery device 10 is aligned with the wireless power transmitter 400 included in the charge station 20 using the adjustment wheels 210 and 230 included in the delivery device 10 at step S400. For example, when the delivery device 10 is moved to the center of the funnel-shaped station 600, the wireless power receiver 500 included in the delivery device 10 is coupled to a wireless power transmitter (not shown) 400).

The wireless power transmitter 400 transmits power PWR (S600). The wireless power receiver 500 included in the delivery apparatus 10 receives the power PWR (S800). The power PWR transmitted from the charging station 20 may be provided to the flight power unit 110 of the UAV 100 through the wireless power receiver 500 included in the delivery apparatus 10. [ The flight power unit 110 may transmit power to the plurality of propellers 130 using the power PWR received from the wireless power receiver 500. [ The plurality of propellers 130 may lift the UAV 100 to the ground using the power transmitted from the flight power unit 110.

The operation method of the charging system 30 according to the embodiments of the present invention can increase the efficiency of the delivery service by supplying power PWR wirelessly to the UAV 100 based on the inductive charging scheme .

Claims (15)

A UAV that receives power from a flight power unit and drives a plurality of propellers to fly to the ground;
A delivery box coupled to a connection portion included in the unmanned airplane and having a storage space for storing an object therein; And
And an electric motor connected to the second surface of the delivery box, which is opposed to the first surface of the delivery box, coupled to the connection portion, disposed outside the delivery box, A cylindrical wireless power receiver for providing to a battery included in an unmanned airplane,
Each of the plurality of adjustment wheel portions engaging with the third surface of the delivery box perpendicular to the first surface of the delivery box,
An adjustment axis in which the first side engages with the third side of the delivery box; And
And an adjustment wheel engaging with a second side of the adjustment shaft. delete The method according to claim 1,
Wherein the delivery device adjusts the distance between the wireless power receiver and the charge station providing the power using the plurality of adjustment wheels. The method of claim 3,
Wherein the adjustment shaft is adjusted in a first direction relative to a vertical direction of a third surface of the delivery box and in a second direction opposite to the first direction. The method according to claim 1,
Wherein the charging efficiency of the wireless power receiver increases as the distance between the charging station and the delivery device that wirelessly transmits the power to the delivery device decreases. As a delivery device,
A UAV that receives power from a flight power unit and drives a plurality of propellers to fly to the ground;
A delivery box coupled to a connection portion included in the unmanned airplane and having a storage space for storing an object therein; And
And an electric motor connected to the second surface of the delivery box, which is opposed to the first surface of the delivery box, coupled to the connection portion, disposed outside the delivery box, A cylindrical wireless power receiver for providing to a battery included in an unmanned airplane,
Wherein the delivery device comprises a charge station coupled to a second surface of the delivery box opposite the first surface of the delivery box and providing the power using a plurality of adjustment wheels disposed outside the delivery box, And adjusts the distance between the power receivers. The method according to claim 6,
Wherein the adjustment shaft included in each of the plurality of adjustment wheels is adjusted in a third direction relative to a vertical direction of the second surface of the delivery box and in a fourth direction opposite to the third direction, Delivery device. The method according to claim 6,
Wherein the core surrounding the inner coil included in the wireless power receiver is comprised of ferrite to block electromagnetic interference occurring during charging. 9. The method of claim 8,
Wherein the second surface of the delivery box includes a ferrite layer that blocks the electromagnetic interference transmitted to the delivery box. A cylindrical wireless power transmitter in which an inner coil is disposed to deliver power wirelessly based on an inductive charging scheme; And
Comprising a funnel-shaped station coupled with the wireless power transmitter to reduce the distance between the wireless power transmitter and the wireless power receiver when a delivery device with a wireless power receiver near the wireless power transmitter arrives, . 11. The method of claim 10,
Wherein the core surrounding the inner coil included in the wireless power transmitter is comprised of a ferrite to block electromagnetic interference occurring during charging. A charge station for wirelessly transmitting power; And
And a delivery device for receiving the power wirelessly,
The delivery device includes:
A UAV that receives power from a flight power unit and drives a plurality of propellers to fly to the ground;
A delivery box coupled to a connection portion included in the unmanned airplane and having a storage space for storing an object therein; And
A first inner coil coupled to the second surface of the delivery box, the second surface being opposite to the first surface of the delivery box, coupled to the connection, and disposed outside the delivery box, And a cylindrical wireless power receiver for providing the battery to a battery included in the unmanned airplane,
The charging station includes:
A cylindrical wireless power transmitter in which a second inner coil is disposed to deliver the power wirelessly based on the inductive charging scheme; And
And a funnel-shaped station coupled with the wireless power transmitter to reduce the distance between the wireless power transmitter and the wireless power receiver when the delivery device with the wireless power receiver arrives near the wireless power transmitter Charging system. 13. The method of claim 12,
Each of the plurality of adjustment wheel portions engaging with the third surface of the delivery box perpendicular to the first surface of the delivery box,
An adjustment axis in which the first side engages with the third side of the delivery box; And
And an adjustment wheel engaged with a second side of the adjustment shaft,
Wherein the delivery device adjusts the distance between the wireless power receiver and the charge station providing the power using the plurality of adjustment wheels. The delivery device reaching a funnel-shaped station included in the charging station;
Moving the delivery device to a lower portion of the station using the adjustment wheels included in the delivery device; And
And aligning the delivery device with a wireless power transmitter included in the charging station. The delivery device reaching a funnel-shaped station included in the charging station;
Aligning the delivery device with a wireless power transmitter included in the charging station using adjustment wheels included in the delivery device;
The wireless power transmitter transmitting power; And
Wherein the wireless power receiver included in the delivery device receives the power.

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