Device and method for detecting an object or a person on a seat of vehicle

US7209033B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Klaus Hofbeck · Dresden, DE
• Lorenz Pfau · Regensburg, DE
• Birgit Rosel · Regensburg, DE

Key dates

• Filing date: Sep 1, 2004
• Grant date: Apr 24, 2007
• Expiry date: Jul 4, 2025

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R2022/4808
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

The device has a transceiver which transmits high-frequency signals, which are reflected back by reflectors in the seats. Occupied seats are detected on the basis of signal propagation delays and/or reflector detections and/or receiving intensities. In addition, it is possible to detect with the aid of a belt sensor whether or not a safety belt is fastened.