Efficient data acquisition for track databases
US8073581B2 · kind B2 · utility
5Cited by
1References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2008 |
| Grant date | Dec 6, 2011 |
| Priority date | — |
| Expiry date | May 1, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/10
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An improved method of rail survey deploys feature identification tags along an inner edge of a train track rail. Each tag includes a unique identifier to identify a respective feature along the train track. Each tag includes a reflector to reflect light to a sensor on a track surveyor. The sensor reads track feature tags without the need for stopping at each feature. A track database is provided that is capable of storing tables that associate track features with geo-locations. As each tag is deployed or read during a rail survey, it can be paired with geo-location data and stored in the track database.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.