SENSOR DEVICE
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United States of America Patent
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Issued Date -
Aug 4, 2016
app pub date -
Jul 17, 2014
filing date -
Jul 17, 2014
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Abstract
A sensor device for detecting the fill level in a collection container includes an ultrasound transducer and is designed such that the sensor device, and thus the ultrasound transducer, can switch between an active operating mode and a power-saving mode. The sensor device and the ultrasound transducer arranged therein require less energy in the power-saving mode than in the operating mode. In the power-saving mode, the sensor device can be brought into the active operating mode using environmental signals and external trigger conditions, which can be configured specifically for a given collection container type. An activation device is provided, which is designed such that, based on an external signal, the activation device causes the sensor device to switch into the active operating mode, wherein the ultrasound transducer performs at least one measurement in the active operating mode. The sensor device has a low-power interface for wireless transfer of data.
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