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KR-20260067876-A - A System for Diagnosing an Operating Condition of a Multicopter

KR20260067876AKR 20260067876 AKR20260067876 AKR 20260067876AKR-20260067876-A

Abstract

The present invention relates to a system for diagnosing the operating status of a multicopter. The system for diagnosing the operating status of a multicopter comprises: a multi-composite sensor module (12) including at least one sensor for detecting the operating status of a multicopter component (11); a power aging sensor module (13) for detecting the status of a battery placed in the multicopter and the status of wiring placed in the multicopter; a health indicator value extraction module (14) for extracting an indicator value that allows the health of the component to be determined from the detection information of the multi-composite sensor module (12) and the power aging sensor module (13); a status analysis module (15) for analyzing the status of the multicopter component (11) based on the extracted indicator value; and an expected lifespan prediction module (16) for predicting the expected lifespan of the multicopter component (11) from the results of the status analysis.

Inventors

  • 송영천
  • 윤영태

Assignees

  • 케이티엠엔지니어링(주)

Dates

Publication Date
20260513
Application Date
20241106

Claims (4)

  1. A multi-composite sensor module (12) including at least one sensor that detects the operating status of a multicopter component (11); A power aging sensor module (13) that detects the condition of the battery placed in the multicopter and the condition of the wiring placed in the multicopter; A health indicator value extraction module (14) that extracts an indicator value to determine the health of a component from detection information of a multi-composite sensor module (12) and a power aging sensor module (13); A state analysis module (15) that analyzes the state of a multicopter component (11) based on extracted indicator values; and A multicopter operating state diagnosis system comprising an expected lifespan prediction module (16) that predicts the expected lifespan of a multicopter component (11) from the results of a state analysis.
  2. A multicopter operating state diagnostic system according to claim 1, wherein the multi-composite sensor module (12) includes a vibration sensor (22a), an ultrasonic sensor (22b), or a microphone (22e), and the power aging sensor module (13) includes a current/voltage sensor (22c) or a thermal imaging camera (22d).
  3. In claim 1, the multi-composite sensor module (12) comprises a vibration sensor (34a, 34b) mounted in an insertion hole formed in the rotation axis block (32a, 32b) of each propeller (33a, 33b), thereby forming an operating state diagnostic system for a multicopter.
  4. An automatic condition diagnosis system for a multicopter according to claim 1, further comprising a variation range calculation module (41) for calculating the variation range of parameters detected by a multi-composite sensor module (12) or a power aging sensor module (13), and a trend/variation data module (48) for comparing the variation trend and the variation range for predicting the expected lifespan.

Description

A System for Diagnosing an Operating Condition of a Multicopter The present invention relates to a system for diagnosing the operating state of a multicopter, and specifically, to a system for diagnosing the operating state of a multicopter capable of determining its soundness by diagnosing the condition of each component during the operating state of the multicopter. A multicopter is an aircraft that uses two or more rotors or propellers to take off or land, or to propel or rotate, and can be used for various purposes in diverse industrial or military fields. Among such multicopters, quadcopters with four wings are widely used due to their stable flight conditions. A multicopter includes components such as a frame, propellers, an ESC (Electric Speed Controller), motors, and batteries, and for the multicopter to operate stably, each component must be maintained in an appropriate operating state. Furthermore, to ensure the operational stability of the multicopter, the condition of each component must be checked periodically, and components must be repaired or replaced as necessary. To this end, the condition of each component needs to be detected periodically. Patent Publication No. 10-2012-0006807 discloses a safety diagnostic system for a helicopter rotor. Patent Registration No. 10-2303118 discloses a method for diagnosing thrust abnormalities in a multicopter. In addition, Patent Publication No. 10-2024-0093267 discloses an actuator diagnostic device for an unmanned multi-copter, a control system for an unmanned multi-copter, and a method for diagnosing actuator failures for an unmanned multi-copter. For the safe operation of a multi-copter, it is necessary to diagnose the condition of all components of the multi-copter. Furthermore, as the condition of each component is diagnosed, it is necessary to predict the replacement time of each component in advance to prevent component malfunctions that may occur during the flight of the multi-copter. However, the prior art does not disclose an operating state detection technology that diagnoses the condition of various components of a multi-copter using sensors suitable for each component, thereby enabling the replacement cycle to be predicted in advance. The present invention aims to solve the problems of the prior art and has the following objectives. FIG. 1 illustrates an example of an operating state diagnosis system for a multicopter according to the present invention. FIG. 2 illustrates an example of the operating structure of a multicopter operating state diagnosis system according to the present invention. FIG. 3 illustrates an embodiment to which a condition diagnosis system according to the present invention is applied. FIG. 4 illustrates an example of a structure in which the expected lifespan of each component is predicted in a condition diagnosis system according to the present invention. FIG. 5 illustrates an example of a condition diagnosis method for a multicopter according to the present invention. The present invention is described in detail below with reference to embodiments shown in the attached drawings, but the embodiments are for a clear understanding of the invention and the invention is not limited thereto. In the description below, components having the same reference numeral in different drawings have similar functions and are not described repeatedly unless necessary for understanding the invention, and known components are described briefly or omitted, but should not be understood as being excluded from the embodiments of the present invention. FIG. 1 illustrates an example of an operating state diagnosis system for a multicopter according to the present invention. Referring to FIG. 1, the operating state diagnosis system of a multicopter includes: a multi-composite sensor module (12) comprising at least one sensor that detects the operating state of a multicopter component (11); a power aging sensor module (13) that detects the state of a battery placed in the multicopter and the state of wiring placed in the multicopter; a health indicator value extraction module (14) that extracts an indicator value to determine the health of the component from the detection information of the multi-composite sensor module (12) and the power aging sensor module (13); a state analysis module (15) that analyzes the state of the multicopter component (11) based on the extracted indicator value; and an expected lifespan prediction module (16) that predicts the expected lifespan of the multicopter component (11) from the state analysis result. A multicopter can be any type of unmanned aerial vehicle that flies by means of two or more rotors or propellers, and includes propellers, an ESC (Electric Speed Controller), a motor, a battery, or similar components for operation. The state or operating state of such multicopter components (11) can be detected, and for detection, the multicopter may be fixed to a fixing means that fixes the multicopter to a pr