Provided are a system and method for detecting a damage to a structure based on vibration by using a drone and a removable permanent magnet, which comprises the following steps of: attaching or detaching a piezoelectric sensor on a bridge or a building by using a removable permanent magnet and a drone, an automated flight object; and using one piezoelectric sensor to perform vibration-based non-destructive inspection, thereby allowing a user to efficiently inspect the structure. In addition, without a plurality of piezoelectric sensors permanently attached to a structure, one piezoelectric sensor is temporarily attached to the structure by using a removable permanent magnet and a drone to sequentially detect many areas, thereby eliminating an effect of the necessary number of sensors and measuring instruments in accordance with sizes of small-scaled and large-scaled structures. Instead, the structure can be monitored by a drone where only one piezoelectric sensor is mounted. Moreover, whether a structure is damaged or not can be analyzed and determined, which corresponds to signal processing and impedance for each frequency in a mode of a probabilistic neural network in accordance with electromechanical impedance technique which is high-frequency vibration-based monitoring technique.

    탈부착 가능한 영구자석과 무인비행체인 드론을 통해 압전센서를 교량이나 빌딩과 같은 구조물에 탈부착하고, 하나의 압전센서를 이용하여 진동 기반의 비파괴검사를 수행함으로써 구조물을 효율적으로 점검할 수 있고, 또한, 여러 개의 압전센서를 영구적으로 구조물에 부착하지 않고, 탈부착 가능한 영구자석과 드론을 활용하여 하나의 압전센서를 구조물에 임시로 부착하여 여러 영역을 순차적으로 감지함에 따라 소형 및 대형 구조물의 크기에 따른 센서 및 계측장비 필요 개수 영향이 없으며, 단지 하나의 압전센서가 장착된 드론으로 구조물의 모니터링이 가능해지며, 또한, 고주파수 진동 기반 모니터링 기법인 전기기계적 임피던스 기법에 따라 확률신경회로망 방식으로 신호처리 및 주파수별 임피던스에 대응하는 구조물 손상 여부를 분석하고 판단할 수 있는, 탈부착 가능한 영구자석 및 드론을 활용한 진동 기반 구조물 손상 감지 시스템 및 그 방법이 제공된다.


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    Titel :

    SYSTEM FOR MONITORING DAMAGE OF VIBRATION-BASED STRUCTURE USING DRONE AND REMOVABLE PERMANENT MAGNET AND METHOD FOR THE SAME


    Weitere Titelangaben:

    탈부착 가능한 영구자석 및 드론을 활용한 진동 기반 구조물 손상 감지 시스템 및 그 방법


    Beteiligte:
    NA SAM (Autor:in) / PARK KI TAE (Autor:in) / SEO DONG WOO (Autor:in)

    Erscheinungsdatum :

    2021-06-10


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Koreanisch


    Klassifikation :

    IPC:    G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / B64C AEROPLANES , Flugzeuge / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / G01H MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES , Messen von mechanischen Schwingungen oder Ultraschall-, Schall- oder Infraschallwellen



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