US 12,460,770 B2
Method for operating a technical installation, and technical installation
Thomas Schäfer, Karlsdorf-Neuthard (DE); and Andreas Wanjek, Waghäusel (DE)
Assigned to SEW-EURODRIVE GMBH & CO. KG, Bruchsal (DE)
Appl. No. 18/570,812
Filed by SEW-EURODRIVE GMBH & CO. KG, Bruchsal (DE)
PCT Filed May 30, 2022, PCT No. PCT/EP2022/064654
§ 371(c)(1), (2) Date Dec. 15, 2023,
PCT Pub. No. WO2022/263161, PCT Pub. Date Dec. 22, 2022.
Claims priority of application No. 102021003031.1 (DE), filed on Jun. 15, 2021.
Prior Publication US 2024/0218972 A1, Jul. 4, 2024
Int. Cl. F16P 3/14 (2006.01); G01V 8/20 (2006.01); G05D 1/656 (2024.01); G05D 105/28 (2024.01)
CPC F16P 3/144 (2013.01) [G01V 8/20 (2013.01); G05D 1/656 (2024.01); G05D 2105/28 (2024.01)] 22 Claims
OG exemplary drawing
 
1. A method for operating a technical installation that includes an outer zone, a danger zone, an access zone that provides access from the outer zone to the danger zone, a light curtain adapted to monitor the access zone, and at least one mobile system, comprising:
generating and activating a protective field in the access zone by the light curtain before entry of the mobile system into the access zone;
in response to approach by the mobile system to the access zone, transmitting, by a mobile communication unit of the mobile system, a request signal to a stationary communication unit of the light curtain to temporarily deactivate the protective field; and
in response to reception of the request signal by the stationary communication unit, deactivating the protective field by the light curtain.