Název:	Performing safety functions to monitor the protected area using a light curtain
Autoři:	Ždánský, Juraj Medvedík, Milan
Citace zdrojového dokumentu:	2019 International Conference on Applied Electronics: Pilsen, 10th – 11th September 2019, Czech Republic, p. 187-192.
Datum vydání:	2019
Nakladatel:	Západočeská univerzita v Plzni
Typ dokumentu:	konferenční příspěvek conferenceObject
URI:	http://hdl.handle.net/11025/35541
ISBN:	978–80–261–0812–2 (Online) 978–80–261–0813–9 (Print)
ISSN:	1803–7232 (Print) 1805-9597 (Online)
Klíčová slova:	bezpečnostní světelná opona;úroveň integrity bezpečnosti;SIL;pravděpodobnost;CTMC
Klíčová slova v dalším jazyce:	safety light curtain;safety integrity level;SIL;probability;CTMC
Abstrakt v dalším jazyce:	In many applications, a light curtain is used to detect the intrusion of a human (or other protected object) into the danger zone. After detecting the interruption of the light curtain, a safety function is activated to bring the danger zone into a safe state (non-human). If the space taken by the light curtain is at the same time a working space, it is necessary to distinguish whether the light curtain interrupt is caused by man or material (material flows cannot cause the dangerous zone to be put into a safe state). There are several ways how to achieve this resolution, but additional (optional) sensors are commonly used. The paper deals with the parameters of additional sensors and how to connect them to the achieved Safety Integrity Level (SIL) of the safety functions realized by the help of the light curtain.
Práva:	© Západočeská univerzita v Plzni
Vyskytuje se v kolekcích:	Applied Electronics 2019 Applied Electronics 2019

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