Mobile-trailer tracking system and method
US6687609B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2002 |
| Grant date | Feb 3, 2004 |
| Priority date | — |
| Expiry date | Jul 16, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A position tracking system for a plurality of mobile tractors and trailers includes an unique electronic identifier for each of a plurality of trailers. For each tractor of a plurality of tractors, the position tracking system includes a navigation system for determining a current position of the tractor, an electronic identifier reader for acquiring the electronic identifier of a trailer coupled to the tractor, and a position-reporting subsystem for reporting to a remote system the current position of the tractor and the electronic identifier of the trailer coupled to the tractor. In addition, the position tracking system includes, at each facility of a plurality of fixed-location facilities, one or more electronic identifier readers for acquiring the electronic identifier of one or more trailers located within the facility, and a trailer-presence reporting subsystem for reporting to the remote system the presence of the one or more trailers located within the facility.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.