System and process for the automatic detection of hazardous situations

US11270576B2 · kind B2 · utility

Assignee

• DRÄGERWERK AG & CO. KGAA · DE

Inventors

• Frank FRANZ · Lübeck, DE
• Stefan Schlichting · Lübeck, DE
• Jasper DIESEL · Lübeck, DE

Key dates

• Filing date: Jun 2, 2020
• Grant date: Mar 8, 2022
• Expiry date: Jun 4, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G16H40/20
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A system (100) detects hazardous situations in a medical setting. A sensor unit (110) has optical sensors (112) to determine a sensor signal (114), and to output same in real time, which includes sensor data indicating a sequence of three-dimensional views of a monitored area (102) over a monitoring time. A processor unit (12) identifies a number of objects (122) to be protected based on the three-dimensional views, detects hazardous objects (124) based on the three-dimensional views, determines a number of object pairs (105), monitors positions of the protected objects and hazardous objects of the object pair over the monitoring time, assigns hazard values to the object pairs, calculates current hazard values for object pairs up to a current time over an analysis time interval and outputs a corresponding alarm signal (126) if a calculated hazard exceeds a threshold value. An output unit (130) triggers an alarm.