Track worker safety system
US8344877B2 · kind B2 · utility
29Cited by
9References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2009 |
| Grant date | Jan 1, 2013 |
| Priority date | — |
| Expiry date | Jul 22, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B21/02
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A safety system for providing early warning notifications to an authorized track worker performing official duties along a rail road network is disclosed herein. The safety system determines the position of the authorized worker and determines an estimated time to collision between the authorized track worker and an approaching rail vehicle. The result of the safety system is that the track worker has enough time and sufficiently accurate warning that will enable the track worker to move to a point of safety so as to remain unharmed by the approaching rail vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.