Railroad telemetry and control systems
US5377938A · kind A · utility
27Cited by
17References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1992 |
| Grant date | Jan 3, 1995 |
| Priority date | — |
| Expiry date | Dec 1, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61L15/0054
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Improvements relating to railroad telemetry and control system address problems in compatibility between HOT and EOT units, implement an automatic UDE location procedure, and automate calibration of EOT units. An improved two way protocol that allows EOT units having different code formats to be used with a HOT unit. A method is implemented by a HOT unit, cooperating with an EOT unit, for locating a fault which causes a UDE brake operation. An automatic calibration procedure for the EOT unit that does not require the operator to have access to the electronic circuitry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.