Device for monitoring spatial areas

US7274438B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Gunter Doemens · Holzkirchen, DE
• Peter Mengel · Eichenau, DE

Key dates

• Filing date: Dec 19, 2002
• Grant date: Sep 25, 2007
• Expiry date: Oct 5, 2023

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S17/894
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A monitoring device (1) for spatial areas (2) includes emitters (3) that emit radiation pulses that are reflected by objects located within the spatial areas (2) toward receivers (4). The receivers (4) are connected to a run time determining unit (9) with whose aid a distance image of an object within the spatial areas (2) can be generated. A selection unit (10) evaluates the distance images and generates a detection signal at an output (11) when predetermined distance values occur in the distance images.