Method for determining the position of an object relative to the background with ultrasound

US5761155A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Peter-Christian Eccardt · Ottobrunn, DE
• Nils Kromer · Hohenstein-Ernstthal, DE
• Stefan Lechner · Pommersfelden, DE
• Valentin Magori · Gernsheim, DE
• Martin Vossiek · Ergolding, DE

Key dates

• Filing date: Aug 2, 1996
• Grant date: Jun 2, 1998
• Expiry date: Aug 2, 2016

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S15/88
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

In a method for determining the position of an object relative to the background with ultrasound, a plurality of ultrasound transducers arranged in a row simultaneously transmit ultrasound in line-shaped fashion in the direction of an object scene and receive both the echo of the signal transmitted by the transducer itself as well as the echoes of the signals generated by the neighboring ultrasound transducers. On the basis of a reference measurement wherein no object is located in the measurement region, the amplitudes and the times of incidence of the echo signals are stored. In the following measurements with an object, the echo amplitudes and the times of incidence of the echo signals are again stored and compared by fuzzy logic to those of the reference measurement. As a result, this supplies the position of the object relative to the background.