EP 4045450 A1 20220824 - METHOD FOR MONITORING A LIFT CAR
Title (en)
METHOD FOR MONITORING A LIFT CAR
Title (de)
VERFAHREN ZUR ÜBERWACHUNG EINER AUFZUGSKABINE
Title (fr)
PROCÉDÉ DE SURVEILLANCE D'UNE CABINE D'ASCENSEUR
Publication
Application
Priority
- AT 508782019 A 20191014
- EP 2020078962 W 20201014
Abstract (en)
[origin: WO2021074252A1] The invention relates to a method for monitoring a lift car (1) by means of at least one optical sensor (3), the at least one optical sensor (3) sensing image data and position data correlating with the image data in a monitoring region of the lift car (1), the image data and position data being transmitted by means of a first data link to an evaluation device situated in the lift car (1). According to the invention, to enable robust monitoring of the monitoring region and to make the monitoring insensitive to any optical effects which may occur at the surfaces of the boundary faces (7a, 7b, 7c), a three-dimensional structure of the monitoring region is at least approximately determined from the transmitted image data and position data in the evaluation device, and at least one virtual boundary face (5) is generated which corresponds at least in some sections with the three-dimensional structure of the monitoring region, wherein the monitoring is only based on image data whose correlating position data lies on a side of the at least one virtual boundary face (5) facing the at least one optical sensor (3).
IPC 8 full level
B66B 5/00 (2006.01); B66B 5/02 (2006.01); G06K 9/00 (2022.01)
CPC (source: AT EP)
B66B 1/40 (2013.01 - AT); B66B 5/0012 (2013.01 - AT EP); B66B 5/0025 (2013.01 - AT); B66B 5/02 (2013.01 - AT); B66B 5/025 (2013.01 - EP); G06V 20/52 (2022.01 - EP); G06V 20/59 (2022.01 - EP); G06V 20/64 (2022.01 - AT)
Citation (search report)
See references of WO 2021074252A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2021074252 A1 20210422; AT 523031 A1 20210415; EP 4045450 A1 20220824
DOCDB simple family (application)
EP 2020078962 W 20201014; AT 508782019 A 20191014; EP 20796500 A 20201014