Sick Ag

Olaf Henkel

Martin Wuestefeld

Ingolf Braune

Martin Wüstefeld

Carsten Natzkowski

Christian Klingelhöfer

Christoph Meyer

Wolfgang SCHöllhorn

Peter Wolf

Michael Scholz

Dr Markus Hammes

Ralf Zimmermann

An optoelectronic sensor arrangement (), with a plurality of optical transmitters () positioned side by side in an optical transmitter strip (), such that each optical transmitter () transmits the light of a transmitted cone (&#x3b1;) into a surveillance area (), and with a plurality of optical receivers () positioned side by side in an optical receiver strip (), which optical receivers () receive the light of a received cone (&#x3b2;) from the surveillance area (), where each receiver ()comprises a spatially-resolving element (), such that each optical transmitter () and optical receiver () form an optical receiver/transmitter pair, and a control unit contains means for determining the optical incident point (L, L', L, L) on one of the optical receivers () of the transmitted cone (&#x3b1;) of each optical transmitter () and/or of a foreign light source (G).

Optoelectronic sensor arrangement and process for monitoring a surveillance area

A zone is monitored with an optoelectronic sensor. Light is transmitted in accordance with a structured light pattern in the direction of the monitored zone and is received from the monitored zone. The received light is converted into received signals and the received signals are evaluated with respect to the presence of an object, or with respect to a movement of an object, in the monitored zone. The light is transmitted and/or received in accordance with at least two different light patterns.

Monitoring method and optoelectronic sensor

The invention relates to an optoelectronic monitoring device for the detection of objects intruding into a monitored zone comprising at least one transmitter, in particular a light grid, arranged at an end of the monitored zone and having a group of transmission elements spaced apart from one another and each transmitting electromagnetic radiation into the monitored zone, at least one reflector arranged at an end of the monitored zone opposite the transmitter for radiation transmitted by the transmission elements, at least one receiver which has at least one spatially resolving reception element for radiation reflected by the reflector, and an evaluation device coupled with the reception element, wherein the transmitter, the reflector and the receiver are made and arranged such that, during the monitoring operation, at least a part of the group of transmission elements comprising a plurality of transmission elements is imaged on the reception element by means of the reflector and a check is made by means of the evaluation device as to whether a pattern on the reception element formed by the imaged transmission elements deviates from an expected image of the transmission elements. The invention further relates to a method of detecting objects intruding into a monitored zone.

Optoelectronic monitoring device

Growing community of inventors

Reute, Germany

Olaf Henkel