Method and system for unattended child detection

US11801774B2 · kind B2 · utility

Assignee

• IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A. · LU

Inventors

• Mathieu Lu-Dac · Luxembourg, LU
• Patrick Di Mario Cola · Fontoy, FR
• Dimitri TATARINOV · Trier, DE
• Andreas DIEWALD · Waldweiler, DE
• Claude Watgen · Luxembourg, LU
• Sam Calmes · Luxembourg, LU
• Peter A. Larsen · Bereldange, LU

Key dates

• Filing date: Oct 25, 2019
• Grant date: Oct 31, 2023
• Expiry date: Dec 1, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S7/412
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A radar sensor system and method for ascertaining whether an unattended child is present within an automotive vehicle. The radar sensor system carries out the method and includes a transmitter, at least one sensor, and processing circuitry. The method includes the steps of: illuminating at least one occupiable position within the vehicle with radiation of multiple frequencies; generating radar sensor signals from reflections of the transmitted radiation, a plurality of the radar sensor signals corresponding to different frequencies; and operating the processing circuitry for generating and determining if a first indicator value indicative of motion in the occupiable position satisfies a first predetermined criteria and, if so, generating and determining a second indicator value indicating a degree of repetitive pattern within the radar sensor signals, and determining presence of an unattended child in the vehicle if the second indicator value satisfies a second predetermined criteria.