Method for detecting a vehicle traffic status and system for detecting said traffic status

US6489920B1 · kind B1 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Armin Anders · Isny im Allgäu, DE
• Matthias Stein · Mülheim an der Ruhr, DE

Key dates

• Filing date: Jan 17, 2001
• Grant date: Dec 3, 2002
• Expiry date: Jan 17, 2021

Classification

• Technology area (CPC G): Physics
• CPC primary: G08G1/04
• WIPO field: Control
• WIPO sector: Instruments

Abstract

From a body located at a distance above the surface of the earth, an image is recorded of a region that is located underneath the body on or above the surface of the earth and that has a diameter of at least one kilometer. The recorded image is fully geocoded and comprises a grid dimension small enough that vehicle densities located in the region can be recognized. The recorded image is evaluated with respect to these vehicle densities and the spatial allocation thereof to the associated roadways. The method is used for acquisition of the state of street traffic over a large area.