Method and device for safeguarding a hazardous area

US7729511B2 · kind B2 · utility

Assignees

• Pilz GmbH & Co. KG · DE
• Daimler AG · DE

Inventors

• Christian Wohler · Heroldstatt, DE
• Werner Progscha · Herrenberg, DE
• Lars Krüger · Schorfheide, DE
• Dietmar Dottling · Echterdingen, DE
• Martin Wendler · Glückstadt, DE

Key dates

• Filing date: Mar 23, 2005
• Grant date: Jun 1, 2010
• Expiry date: Jul 13, 2028

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2207/30196
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

In order to safeguard a hazardous area, in particular the hazardous area of an automatically operating machine, images of the hazardous area are recorded with at least a first and a second image recording unit that are arranged offset from one another. The images of the scene are subjected to three-dimensional scene analyses using different three-dimensional scene analysis methods, and the hazardous area is safeguarded when at least one of the scene analysis methods detects a foreign object.