Systems and methods for detection of occupancy using radio waves
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United States of America Patent
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Apr 14, 2020
Grant Date -
May 4, 2017
app pub date -
Nov 4, 2016
filing date -
Nov 4, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
Systems and methods are disclosed for detecting a presence of a person in an area of coverage using radar. A transmitter can transmit radio signals in a first direction in an area of coverage defined by a wall and a floor. A receiver can receive the transmitted radio signals reflected back from the area of coverage. A signal conditioning circuit can process the received radio signals. One or more hardware processors can be programmed to analyze the processed radio signals and detect a presence of a person in the area of coverage based on the analysis. The analysis of the processed signals can be performed in both time and frequency domain. In addition to radar, an input from an infrared sensor can also be used in conjunction with radar based detection.
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