Method and device for sensing and object or a person in the interior of a vehicle

US6452288B1 · kind B1 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Christoph Roth · Bodenwerder, DE
• Alexander Waldmann · Regensburg, DE
• Reinhard Hamperl · Altötting, DE
• Thomas Stierle · Regensburg, DE
• Reinhard Roesl · Wenzenbach, DE
• Gerhard Mader · Thalmässing, DE

Key dates

• Filing date: Feb 25, 2000
• Grant date: Sep 17, 2002
• Expiry date: Feb 25, 2020

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R21/01538
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

In order to sense an object or a person in the interior of a vehicle, a laser emits a laser pulse. The laser pulse which is reflected at an object or a person is registered and evaluated. The energy content of a following laser pulse is determined based on a characteristic variable of the reflected laser pulse such as its power or its energy content.