Integrated traffic monitoring assistance, and communications system
US6411889B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 8, 2000 |
| Grant date | Jun 25, 2002 |
| Priority date | — |
| Expiry date | Sep 8, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/052
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A traffic monitoring, driver assistance, and communications system includes lane terminals arranged along a direction of travel of a highway, each lane terminal including a sensor for detecting passage of a vehicle, a communication antenna, a terminal transceiver for communicating with a passing vehicle through the communication antenna, and a network backbone linking the lane terminals to a data processor for compiling information on passing vehicles sensed. The system permits complex toll assessment on toll roads. By using a larger number of short range antennas, cellular communication is possible with a very large number of moving vehicles without increasing bandwidth because the cells are relatively small.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.