Reliability Assessment of a Vision-Based Dynamic Displacement Measurement System Using an Unmanned Aerial Vehicle
In recent years, many studies have been conducted on the vision-based displacement measurement system using an unmanned aerial vehicle, which has been used in actual structure measurements. In this study, the dynamic measurement reliability of a vision-based displacement measurement system using an...
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MDPI AG
2023-03-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/23/6/3232 |
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| author | Hongjin Kim Guyeon Kim |
| author_facet | Hongjin Kim Guyeon Kim |
| author_sort | Hongjin Kim |
| collection | DOAJ |
| description | In recent years, many studies have been conducted on the vision-based displacement measurement system using an unmanned aerial vehicle, which has been used in actual structure measurements. In this study, the dynamic measurement reliability of a vision-based displacement measurement system using an unmanned aerial vehicle was examined by measuring various vibrations with a frequency of 0 to 3 Hz and a displacement of 0 to 100 mm. Furthermore, free vibration was applied to model structures with one and two stories, and the response was measured to examine the accuracy of identifying structural dynamic characteristics. The vibration measurement results demonstrated that the vision-based displacement measurement system using an unmanned aerial vehicle has an average root mean square percentage error of 0.662% compared with the laser distance sensor in all experiments. However, the errors were relatively large in the displacement measurement of 10 mm or less regardless of the frequency. In the structure measurements, all sensors demonstrated the same mode frequency based on the accelerometer, and the damping ratios were extremely similar, except for the laser distance sensor measurement value of the two-story structure. Mode shape estimation was obtained and compared using the modal assurance criterion value compared with the accelerometer, and the values for the vision-based displacement measurement system using an unmanned aerial vehicle were close to 1. According to these results, the vision-based displacement measurement system using an unmanned aerial vehicle demonstrated results similar to those of conventional displacement sensors and can thus replace conventional displacement sensors. |
| first_indexed | 2024-03-11T05:55:20Z |
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| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-11T05:55:20Z |
| publishDate | 2023-03-01 |
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| spelling | doaj.art-6efa9ed2d1ac455eb0a9627711d013b62023-11-17T13:47:48ZengMDPI AGSensors1424-82202023-03-01236323210.3390/s23063232Reliability Assessment of a Vision-Based Dynamic Displacement Measurement System Using an Unmanned Aerial VehicleHongjin Kim0Guyeon Kim1Department of Architectural Engineering, Kyungpook National University, Daegu 41566, Republic of KoreaDepartment of Architectural, Civil, Environmental, and Energy Engineering, Kyungpook National University, Daegu 41566, Republic of KoreaIn recent years, many studies have been conducted on the vision-based displacement measurement system using an unmanned aerial vehicle, which has been used in actual structure measurements. In this study, the dynamic measurement reliability of a vision-based displacement measurement system using an unmanned aerial vehicle was examined by measuring various vibrations with a frequency of 0 to 3 Hz and a displacement of 0 to 100 mm. Furthermore, free vibration was applied to model structures with one and two stories, and the response was measured to examine the accuracy of identifying structural dynamic characteristics. The vibration measurement results demonstrated that the vision-based displacement measurement system using an unmanned aerial vehicle has an average root mean square percentage error of 0.662% compared with the laser distance sensor in all experiments. However, the errors were relatively large in the displacement measurement of 10 mm or less regardless of the frequency. In the structure measurements, all sensors demonstrated the same mode frequency based on the accelerometer, and the damping ratios were extremely similar, except for the laser distance sensor measurement value of the two-story structure. Mode shape estimation was obtained and compared using the modal assurance criterion value compared with the accelerometer, and the values for the vision-based displacement measurement system using an unmanned aerial vehicle were close to 1. According to these results, the vision-based displacement measurement system using an unmanned aerial vehicle demonstrated results similar to those of conventional displacement sensors and can thus replace conventional displacement sensors.https://www.mdpi.com/1424-8220/23/6/3232VDMS using UAVshaking table testsystem identificationreliability assessment |
| spellingShingle | Hongjin Kim Guyeon Kim Reliability Assessment of a Vision-Based Dynamic Displacement Measurement System Using an Unmanned Aerial Vehicle Sensors VDMS using UAV shaking table test system identification reliability assessment |
| title | Reliability Assessment of a Vision-Based Dynamic Displacement Measurement System Using an Unmanned Aerial Vehicle |
| title_full | Reliability Assessment of a Vision-Based Dynamic Displacement Measurement System Using an Unmanned Aerial Vehicle |
| title_fullStr | Reliability Assessment of a Vision-Based Dynamic Displacement Measurement System Using an Unmanned Aerial Vehicle |
| title_full_unstemmed | Reliability Assessment of a Vision-Based Dynamic Displacement Measurement System Using an Unmanned Aerial Vehicle |
| title_short | Reliability Assessment of a Vision-Based Dynamic Displacement Measurement System Using an Unmanned Aerial Vehicle |
| title_sort | reliability assessment of a vision based dynamic displacement measurement system using an unmanned aerial vehicle |
| topic | VDMS using UAV shaking table test system identification reliability assessment |
| url | https://www.mdpi.com/1424-8220/23/6/3232 |
| work_keys_str_mv | AT hongjinkim reliabilityassessmentofavisionbaseddynamicdisplacementmeasurementsystemusinganunmannedaerialvehicle AT guyeonkim reliabilityassessmentofavisionbaseddynamicdisplacementmeasurementsystemusinganunmannedaerialvehicle |