Bea Sa

Alain Zambon

A door sensor system () for detecting a target object () in and/or near a door comprising a door opening (), and at least one movable door element (----), the system comprising at least one light scanner device () which is capable of measuring optically the distance to a target to make such a measurement over a given scan angle at regular intervals by deflecting the light with moving mirrors, and which generates at least one vertical plane of detection.

Door sensor system for detecting a target object

The present invention relates to a thermally sensitive array device for detecting a presence of a target object in a surveillance area. The device comprises a plurality of at least two thermally sensitive sensors provided in an array arrangement, each thermally sensitive sensor being associated with one of a corresponding plurality of at least two surveillance spots comprised in the surveillance area. Each thermally sensitive sensor comprises a sensitive element adapted to absorb a portion of thermal infrared radiation emitted from one of said plurality of targets located inside the surveillance cone corresponding to the thermally sensitive sensor. The thermally sensitive sensor can be a thermopile, a bolometer, or any other type. Electronic circuits in each thermally sensitive sensor are adapted to measure a signal generated in the thermally sensitive sensor as a consequence of the temperatures of the target.

Thermally sensitive array device for presence detection around automatic doors

The present invention relates to a light scanner device () for measuring a range and an angular direction of a target object (), the device () comprising a pulsed source () adapted to transmit light pulses, a transmitter deflection means () adapted to reflect and sweep the transmitted light pulses in variable sweep directions across a sweep sector in a sweep plane (), a photodetection means () adapted to detect received light pulses that have been reflected in the sweep plane (), a receiver deflection means () adapted to reflect light pulses that have been reflected in the sweep plane () and to re-direct the reflected light pulses to the photodetection means (). The device comprises optical shielding means () adapted to optically shield transmitted light pulses on their trajectory from the pulse source () to the transmitter deflection means () and at least a portion of their trajectory extending from the transmitter deflection means () into the sweep sector from reflected light pulses on their trajectory between the photodetection means () and the receiver deflection means () and at least a portion of their trajectory extending in the sweep sector and ending on the receiver deflection means ().

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Saint-Nicolas, Belgium

Alain Zambon