US 11,721,214 B2
Parking sensor device for determining occupancy of a parking space
Jeff Clemmer, New Dundee (CA); Chris Snyder, Waterloo (CA); Brandon Davies, Kitchener (CA); and Jonathan Swoboda, Waterloo (CA)
Assigned to ELEVEN-X INCORPORATED, Waterloo (CA)
Filed by Eleven-X Incorporated, Waterloo (CA)
Filed on Sep. 1, 2021, as Appl. No. 17/446,705.
Claims priority of provisional application 62/706,728, filed on Sep. 4, 2020.
Prior Publication US 2022/0076576 A1, Mar. 10, 2022
Int. Cl. G08G 1/14 (2006.01); G01V 3/08 (2006.01); G01S 13/86 (2006.01); G01S 13/04 (2006.01)
CPC G08G 1/141 (2013.01) [G01S 13/04 (2013.01); G01S 13/86 (2013.01); G01V 3/081 (2013.01)] 18 Claims
OG exemplary drawing
 
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.