Patent · US Expired

Devices and method for detecting the position and the weight of a person

US7315002B2 · kind B2 · utility

3Cited by

9References

12Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Klaus Hofbeck · Dresden, DE
Thomas Klement · Regensburg, DE
Birgit Rosel · Regensburg, DE
Arnd Stielow · Regensburg, DE

Key dates

Filing date	Sep 10, 2004
Grant date	Jan 1, 2008
Priority date	—
Expiry date	May 24, 2025

Classification

Technology area (CPC G)Physics
CPC primaryG01G19/4142
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The position and the weight of a person, in particular a person on a motor vehicle seat, is determined. Reflectors are used to reflect electromagnetic radiation from a transceiver. The attenuation of the sensor reflector radiation enables a report on the seat position of a person in the radiation path. An antenna of each sensor reflector is connected to an electrical load assigned thereto, which is dependent on the weight of the person acting upon it. Depending on this weight, weight information about the person is superimposed by the load onto the reflected sensor reflector signal. The reflected sensor reflector signal is received by the transceiver and fed to the evaluation unit after a signal pre-processing, which enables the weight information of the person to be evaluated.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.