System for controlling vital wayside devices of a railway network, and vital switch for such vital devices
US11724724B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2020 |
| Grant date | Aug 15, 2023 |
| Priority date | — |
| Expiry date | Aug 30, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61L7/083
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A system for controlling one or more vital wayside devices of a railway network, comprising one or more vital switches, each vital switch being comprised in or operatively connected to an associated device of the one or more vital wayside devices, and a controller which is configured to control the one or more vital wayside devices. The controller is connected to each of the one or more vital switches by means of at least one optical fiber cable and is configured to output one or more light command signals over the at least one optical fiber cable, and each vital switch is configured to switch from an open status to a closed status to provide power and ground to the associated vital wayside device upon receiving at least one corresponding light command signal outputted by the controller for commanding an action of the associated vital wayside device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.