Method and apparatus to automatically generate a train manifest
US5902341A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 30, 1996 |
| Grant date | May 11, 1999 |
| Priority date | — |
| Expiry date | Oct 30, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/51
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A system located in a region to determine information about an unknown car relative to a moving train includes first and second satellite navigation receivers, first and second transceivers and first and second controllers. The moving train includes a first car, and the region includes the moving train and the unknown car. The region is defined by points at which radio communication with the first car is possible. The first satellite navigation receiver, located in the first car, provides first location data, and the second satellite navigation receiver, located in the unknown car, provides second location data. The first transceiver is located in the first car, and the second transceiver is located in the unknown car. The first controller, located in the first car, reads the first location data from the first satellite receiver at a first time and sends via the first transceiver a first request to the second transceiver at the first time. The second controller, located in the unknown car and responsive to the first request received via the second transceiver, reads the second location data from the second satellite receiver and sends via the second transceiver a first response to …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.