Track monitoring equipment
US7081824B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 17, 2002 |
| Grant date | Jul 25, 2006 |
| Priority date | — |
| Expiry date | Jul 18, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61K9/08
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The alignment of railway tracks may be monitored using an accelerometer (36) mounted on a bogie (24) of a railway vehicle to detect lateral accelerations, and a displacement transducer (38) to monitor the lateral displacements of a wheelset (27) relative to the bogie. The acceleration signals are digitised, and processed corresponding to double integration, so as to deduce the lateral displacements of the bogie, and in conjunction with the signals from the displacement transducer hence to determine the effective lateral displacements of the track. This can provide a more useful indication of the lateral positions of the rails than measurements of the gauge faces. Such equipment (16) may be installed in a service vehicle, and operate automatically, downloading resulting data to a remote base station at regular intervals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.