Method and control unit for determining precipitation intensity with the aid of ultrasonic measured data

US11402502B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Simon Weissenmayer · Flein, DE
• Michael Schumann · Stuttgart, DE
• Timo Koenig · Unterheinriet, DE

Key dates

• Filing date: Oct 4, 2018
• Grant date: Aug 2, 2022
• Expiry date: Sep 8, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S15/931
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for measuring precipitation. The method includes a read-in step, a detection step and a determination step. In the read-in step, data packets of at least one ultrasonic sensor are read in. Excitations detected by the ultrasonic sensor within a measuring time window are mapped in a data packet. The excitations are mapped as time values and intensity values. The time value represents a detection point in time of an excitation. The intensity value represents an amplitude of the excitation. In the detection step, excitations are detected as drop events. An excitation is detected as a drop event induced by a pulse of an impacting drop if the time value and/or the intensity value of the excitation satisfies at least one characteristic of a drop event. In the determination step, a precipitation intensity is determined, using a number of drop events detected per time unit.