System and method for providing railway worker safety via multiple radios
US10266187B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2017 |
| Grant date | Apr 23, 2019 |
| Priority date | — |
| Expiry date | Dec 8, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B21/22
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Systems and methods for alerting rail workers of an oncoming rail vehicle are described. The system and method provide for a vehicle alert device on a rail vehicle. The vehicle alert device has two radios operating at different frequencies. Further provided is a personal alert device worn by a rail worker. The personal alert device has two radios operating at different frequencies. The frequencies of the radios in the vehicle alert device and of the radios in the personal alert device correspond to one another. One of the radios in the vehicle alert device and one of the radios in the personal alert device operate on the same frequency and perform ranging functions. The other radio in the vehicle alert device and the other radio in the personal alert device operate at the same frequency and provide for data communication between the rail worker and the rail vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.