Wayside communication system using power grid lines
US10293840B2 · kind B2 · utility
0Cited by
1References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2016 |
| Grant date | May 21, 2019 |
| Priority date | — |
| Expiry date | Jun 2, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B3/542
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A wayside communication system for transmitting coded current signals through running rails of a railroad track between wayside control devices. A power line common to the wayside control devices is used as the return path for the current signals. The system features train and broken rail detection. The system allows sending signals long distances since rail to rail current leakage is no longer an issue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.