On-Site Calibration Method for Line-Structured Light Sensor-Based Railway Wheel Size Measurement System
Line-structured light has been widely used in the field of railway measurement, owing to its high capability of anti-interference, fast scanning speed and high accuracy. Traditional calibration methods of line-structured light sensors have the disadvantages of long calibration time and complicated c...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-10-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/21/20/6717 |
| _version_ | 1797513220636803072 |
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| author | Yunfeng Ran Qixin He Qibo Feng Jianying Cui |
| author_facet | Yunfeng Ran Qixin He Qibo Feng Jianying Cui |
| author_sort | Yunfeng Ran |
| collection | DOAJ |
| description | Line-structured light has been widely used in the field of railway measurement, owing to its high capability of anti-interference, fast scanning speed and high accuracy. Traditional calibration methods of line-structured light sensors have the disadvantages of long calibration time and complicated calibration process, which is not suitable for railway field application. In this paper, a fast calibration method based on a self-developed calibration device was proposed. Compared with traditional methods, the calibration process is simplified and the calibration time is greatly shortened. This method does not need to extract light strips; thus, the influence of ambient light on the measurement is reduced. In addition, the calibration error resulting from the misalignment was corrected by epipolar constraint, and the calibration accuracy was improved. Calibration experiments in laboratory and field tests were conducted to verify the effectiveness of this method, and the results showed that the proposed method can achieve a better calibration accuracy compared to a traditional calibration method based on Zhang’s method. |
| first_indexed | 2024-03-10T06:13:36Z |
| format | Article |
| id | doaj.art-a2f006236cdc4042b6d7d8a056946bfd |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T06:13:36Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-a2f006236cdc4042b6d7d8a056946bfd2023-11-22T19:56:20ZengMDPI AGSensors1424-82202021-10-012120671710.3390/s21206717On-Site Calibration Method for Line-Structured Light Sensor-Based Railway Wheel Size Measurement SystemYunfeng Ran0Qixin He1Qibo Feng2Jianying Cui3Key Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, ChinaKey Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, ChinaKey Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, ChinaKey Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, ChinaLine-structured light has been widely used in the field of railway measurement, owing to its high capability of anti-interference, fast scanning speed and high accuracy. Traditional calibration methods of line-structured light sensors have the disadvantages of long calibration time and complicated calibration process, which is not suitable for railway field application. In this paper, a fast calibration method based on a self-developed calibration device was proposed. Compared with traditional methods, the calibration process is simplified and the calibration time is greatly shortened. This method does not need to extract light strips; thus, the influence of ambient light on the measurement is reduced. In addition, the calibration error resulting from the misalignment was corrected by epipolar constraint, and the calibration accuracy was improved. Calibration experiments in laboratory and field tests were conducted to verify the effectiveness of this method, and the results showed that the proposed method can achieve a better calibration accuracy compared to a traditional calibration method based on Zhang’s method.https://www.mdpi.com/1424-8220/21/20/6717structured lighton-site calibrationwheel size measurement |
| spellingShingle | Yunfeng Ran Qixin He Qibo Feng Jianying Cui On-Site Calibration Method for Line-Structured Light Sensor-Based Railway Wheel Size Measurement System Sensors structured light on-site calibration wheel size measurement |
| title | On-Site Calibration Method for Line-Structured Light Sensor-Based Railway Wheel Size Measurement System |
| title_full | On-Site Calibration Method for Line-Structured Light Sensor-Based Railway Wheel Size Measurement System |
| title_fullStr | On-Site Calibration Method for Line-Structured Light Sensor-Based Railway Wheel Size Measurement System |
| title_full_unstemmed | On-Site Calibration Method for Line-Structured Light Sensor-Based Railway Wheel Size Measurement System |
| title_short | On-Site Calibration Method for Line-Structured Light Sensor-Based Railway Wheel Size Measurement System |
| title_sort | on site calibration method for line structured light sensor based railway wheel size measurement system |
| topic | structured light on-site calibration wheel size measurement |
| url | https://www.mdpi.com/1424-8220/21/20/6717 |
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