System for using cellular phones as traffic probes
US7650227B2 · kind B2 · utility
25Cited by
7References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2005 |
| Grant date | Jan 19, 2010 |
| Priority date | — |
| Expiry date | Jul 23, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L43/106
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method for determining the flow of traffic in a monitored route segment using global positioning system, or assisted global positioning system, enabled cellular phones as traffic probes takes advantage of the existing cellular infrastructure to deploy traffic probes to determine the flow of traffic based on the speed and direction of probes. Filtering of probe data can be used to remove probes having outlying results such as excessive speed, or probes that do not fit the general trend already observed on a traffic route segment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.