CPC G08G 1/141 (2013.01) [G01S 13/04 (2013.01); G01S 13/86 (2013.01); G01V 3/081 (2013.01)] | 18 Claims |
1. A parking sensor device for determining occupancy of a parking space, comprising:
a magnetometer sensor configured to detect a magnetic field;
a radar sensor configured to perform at least one radar scan to detect presence of an object;
control circuitry configured to determine whether the object detected by the at least one radar scan includes a blocking substance near the parking sensor device, and determine occupancy of the parking space based on the magnetic field and the at least one radar scan as a function whether a blocking substance is detected;
a structure positioned relative to the radar sensor so that the at least one radar scan traverses the structure, wherein the structure is configured with a shape and a dielectric constant that slows down the at least one radar scan to enable detection of a blocking substance by separating reflection off the blocking substance from internal direct leakage; and
an output for conveying occupancy of the parking space.
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