Process and system for ascertaining traffic conditions using stationary data collection devices
US5889477A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 25, 1997 |
| Grant date | Mar 30, 1999 |
| Priority date | — |
| Expiry date | Mar 25, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/0104
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A process and apparatus for determining traffic conditions using stationary data collection devices that are installed in a road network. The data collection devices collect data about traffic conditions at the respective installation sites in keeping with an established measurement and then forward the collected information to a traffic center in keeping with an established reporting procedure where the data is analyzed to determine the traffic condition. At least a portion of the results of the analyses of the traffic center is transmitted to particular data collection devices. The measurement and reporting procedures of the particular data collection devices are modified or influenced based on the results of the analyses of the traffic center and as a result the data transmissions between the traffic center and data collections devices are substantially reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.