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1. (WO2014202471) DEVICE AND METHOD FOR SECURING A MACHINE THAT OPERATES IN AN AUTOMATED MANNER

Pub. No.:    WO/2014/202471    International Application No.:    PCT/EP2014/062321
Publication Date: Thu Dec 25 00:59:59 CET 2014 International Filing Date: Sat Jun 14 01:59:59 CEST 2014
IPC: F16P 3/14
Applicants: PILZ GMBH & CO. KG
Inventors: DOETTLING, Dietmar
HADER, Soeren
Title: DEVICE AND METHOD FOR SECURING A MACHINE THAT OPERATES IN AN AUTOMATED MANNER
Abstract:
The invention relates to a device for securing a monitoring region (14), in which a machine (16) that operates in an automated manner is arranged. The device (10) has a camera system (12) for monitoring the monitoring region (14), a configuration unit (34) for defining at least one protection region (36) within the monitoring region (14), and an evaluating unit (28) for triggering a safety-relevant function. The camera system (12) provides camera images of the protection region (36), and the evaluating unit (28) evaluates whether a foreign object (53) is present in the protection region (36) or is entering the protection region. The evaluating unit (28) is also designed to classify a foreign object (53) present in the protection region (36) or entering the protection region by analyzing the camera images, in order to determine, on the basis of one or more features characteristic of welding sparks (52), whether the foreign object (53) is a welding spark (52), wherein the evaluating unit (28) is designed to trigger the safety-relevant function if the foreign object (53) was not recognized as a welding spark (52).