US 12,228,672 B2
Device and method for detecting blockage of radar sensor, and radar apparatus
GiYeon Won, Gyeonggi-do (KR)
Assigned to HL KLEMOVE CORP., Incheon (KR)
Filed by HL KLEMOVE CORP., Incheon (KR)
Filed on Dec. 4, 2021, as Appl. No. 17/542,401.
Claims priority of application No. 10-2020-0175069 (KR), filed on Dec. 15, 2020.
Prior Publication US 2022/0187414 A1, Jun. 16, 2022
Int. Cl. G01S 13/86 (2006.01); B60W 40/02 (2006.01); G01S 7/02 (2006.01); G01S 7/40 (2006.01); G01S 13/931 (2020.01); G01W 1/02 (2006.01); H04N 7/18 (2006.01)
CPC G01S 7/021 (2013.01) [G01S 13/867 (2013.01); G01S 13/931 (2013.01); G01S 2013/9322 (2020.01)] 18 Claims
OG exemplary drawing
 
1. A device of detecting blockage of a radar sensor, the device comprising:
a first electronic control unit arranged for determining an external environment state outside of a vehicle or the radar sensor based on at least one of external weather data, external image data, and vehicle status data, and determining a detection sensitivity of the radar sensor according to the determined external environment state; and
a second electronic control unit arranged for determining whether the radar sensor is blocked based on a comparison between a detection threshold for the determined detection sensitivity, determined by the first electronic control unit while the vehicle is travelling, and a power value of reception signal of the radar sensor.