KR-102964015-B1 - Antenna feeding data transmission method using a rotating body

Abstract

The present invention relates to a flight device having an antenna on a propeller. The flight device may include at least one propeller having a plurality of rotating blades; an antenna comprising at least one of a first antenna pattern disposed on the upper surface of at least some of the plurality of rotating blades and a second antenna pattern disposed on the lower surface of at least some of the blades; a first communication module for transmitting and receiving data using the antenna; a second communication module for performing short-range wireless communication with the first communication module; and a contactless connection unit connecting the first communication module and the second communication module in a contactless manner. The present invention can improve the radiation performance of the flight device.

Inventors

• 김병남
• 엄상진
• 이승재

Assignees

• 주식회사 센서뷰

Dates

Publication Date

20260512

Application Date

20231020

Claims (8)

1. In flight devices, At least one propeller having a plurality of rotating blades; An antenna comprising at least one of a first antenna pattern disposed on the upper surface of at least some of the plurality of rotating blades and a second antenna pattern disposed on the lower surface of at least some of the plurality of rotating blades; A first communication module that transmits and receives data using the above antenna; A second communication module that performs short-range wireless communication with the first communication module; A contactless connection part comprising a first connection part where the first communication module is located and a second connection part where the second communication module is located and spaced apart from the first connection part by a certain distance; At least one motor located on one side of the housing; At least one first gear formed on the rotation axis of each motor and having a first size; and It includes at least one second gear that is coupled to the first gear and has a second size larger than the first size, and is connected to each of the at least one propeller. The first antenna pattern and the second antenna pattern include an antenna radiation pattern and an antenna ground pattern, and the second gear is formed of a metal material. A flight device characterized in that the above antenna ground pattern is connected to a second gear formed of the above metal material.
2. In Article 1, The first communication module includes a first wireless communication chip connected to the antenna and a first loop antenna connected to the first wireless communication chip, and A flight device characterized in that the second communication module comprises a second loop antenna spaced apart from the bottom of the first loop antenna and a second wireless communication chip connected to the second loop antenna.
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6. In Article 1, The above-mentioned rotating blade is formed of a metal material, and A first carrier of a non-metallic material located between the first antenna pattern and the upper surface of a rotating blade formed of the metal material; and A flight device characterized by further including a second carrier made of a non-metallic material located between the second antenna pattern and the lower surface of a rotary wing formed of the metal material.
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8. In Article 1, A flight device characterized in that one side of the first antenna pattern and the second antenna pattern are connected.

Description

Antenna feeding data transmission method using a rotating body The present invention relates to a flight device having an antenna on a propeller. Electronic devices that support wireless communication require antennas that radiate (transmit) and/or receive radio waves. For example, electronic devices equipped with antennas capable of transmitting and receiving signals in various frequency bands (hereinafter referred to as multi-band) (e.g., IoT devices, mobile devices, black boxes, etc.) can transmit and receive GPS data, video data, voice data, etc., through the antennas. Meanwhile, flying devices (e.g., drones) that are remotely controlled via a control unit must also include an antenna for wireless communication. Generally, such flying devices can generate thrust and lift through the rotation of propellers. However, these propellers can degrade the radiation performance of the antenna. Flying devices, such as drones, in which control signals for takeoff, flight, or landing are transmitted and received wirelessly through an antenna, may lose control and collide with surrounding objects or crash if the control signals are blocked or weakened during flight due to reduced radiation performance. In particular, if the propellers are made of lightweight metal materials such as aluminum or titanium that are resistant to external environmental influences, interference with the control signals caused by the propellers can occur, degrading the antenna's transmission and reception performance. Furthermore, significant variations in transmission and reception efficiency with altitude can occur, making it highly likely that the device will lose control. FIG. 1 is a drawing illustrating the appearance of a flight device having an antenna on a propeller according to one embodiment of the present invention. FIG. 2 is a drawing showing an antenna provided on a propeller of a flight device according to one embodiment of the present invention. FIG. 3 is a schematic diagram illustrating a contactless connection structure of an antenna provided in a propeller according to one embodiment of the present invention. FIGS. 4a and 4b are drawings illustrating a connection structure between a propeller and a motor according to an embodiment of the present invention. FIG. 5a is a drawing illustrating a virtual antenna pattern area formed according to the rotation of an antenna according to one embodiment of the present invention. FIG. 5b is a diagram illustrating the results of simulating the radiation performance of a flight device according to one embodiment of the present invention. FIG. 5c is a graph showing the radiation performance of an antenna according to one embodiment of the present invention. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The advantages and features of the present invention, and the methods for achieving them, will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. In the following, the same reference numerals refer to the same components. Although terms such as "first," "second," etc. are used to describe various elements, components, and/or sections, it goes without saying that these elements, components, and/or sections are not limited by these terms. These terms are used merely to distinguish one element, component, or section from another. Accordingly, it goes without saying that the first element, first component, or first section mentioned below may be a second element, second component, or second section within the technical scope of the present invention. The terms used herein are for describing the embodiments and are not intended to limit the invention. In this specification, the singular form includes the plural form unless specifically stated otherwise in the text. As used herein, "comprises" and/or "made of" do not exclude the presence or addition of one or more other components, steps, actions, and/or elements to the mentioned components, steps, actions, and/or elements. Unless otherwise defined, all terms used in this specification (including technical and scientific terms) may be used in a meaning commonly understood by those skilled in the art to which the present invention pertains. Additionally, terms defined in commonly used dictionaries are not to be interpreted ideally or excessively unless explicitly and specifically defined otherwise. FIG. 1 is a drawing showing the appearance of a flight device having an antenna on a propeller according to an embodiment of the