Detection of high speed railway track static regularity with laser trackers
| Autor: | Yueyin Zhou, P. Sun, H. Sun, Ning Li, L. B. Yao |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Measurement point
business.industry Computer science Total station Track (rail transport) Field (computer science) Laser tracker Earth and Planetary Sciences (miscellaneous) Computer vision Track geometry Artificial intelligence Computers in Earth Sciences business Simulation Civil and Structural Engineering |
| Zdroj: | Survey Review. 47:279-285 |
| ISSN: | 1752-2706 0039-6265 |
| Popis: | Track regularity is of vital importance in the safety of high speed railway operation. A laser tracker can collect highly accurate three-dimensional (3D) point measurements. Therefore, it is considered as a promising surveying technique for the detection of railway track static irregularity as opposed to using a total station. This study proposes a new approach that uses a laser tracker as the main sensor for obtaining the coordinates of left- and right-track points to detect potential track static irregularities. In this method, the reflecting target of the laser tracker is on a track inspection trolley moving in a round trip along the railway track. A field experiment was conducted to validate the results by comparing the results with the field measurements gathered using a track inspection trolley. The results show that the track static regularity detection method with laser trackers is feasible and indicate that track geometry parameters such as gauges, elevations and lateral deviations of cen... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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