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US 12,181,561 B2Granted
Sensor arrangement
AssigneeTridonic GmbH & Co KG
InventorIstvan Bakk
Life of this patent
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Abstract
The invention relates to a sensor arrangement (101) configured to detect a motion of an object. The sensor arrangement (101) comprises a motion sensor (101a) configured to detect data about the motion of the object; a vibration sensor (101b) configured to detect a vibration of the sensor arrangement (101), wherein if the vibration is lower than a threshold value, then an output signal of the sensor arrangement (101) signaling the motion of the object is output.
Claims12
A sensor arrangement (101) configured to detect a motion of an object and output a trigger signal for a luminaire in response to detected motion, comprising:
- a radar Doppler motion sensor (101a) configured to output a radar signal about the relative motion of the object with respect to the motion sensor;
- a vibration sensor (101b) comprising an accelerometer configured to detect acceleration of the sensor arrangement (101);
- and
- a processor (101c) configured to calculate a radar acceleration on the basis of the radar signal detected by the motion sensor (101a) and the acceleration detected by the accelerometer and to normally output a trigger signal if the calculated radar acceleration signal exceeds a motion level threshold value.
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Dependencies are inferred from the claim text.