Importance

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Abstract

Monitoring facility and method for monitoring an opening, wherein to improve the monitoring facility through which objects are channeled via a transportation device, a light curtain includes a transmitter array with transmitters emitting light beams and a receiver array with receivers receiving light beams which recognize interruption of a light beam and provide a signal, where the light curtain is arranged such that the light beams extend orthogonally to a transportation plane of the transportation device, and includes a scanner which scans receiver signals of the light curtain in chronologically consecutive scanning steps and provides each scanned signal as a signal series, a controller unit with a safety program which transmits a shut-off signal to prevent a danger, and an object recognition system arranged opposite to the transportation direction in front of the light curtain which is configured to recognize objects and to derive parameters therefrom for their geometric shape.

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First Claim