US 11,451,765 B2Granted

System and method for determining when a sensor is polluted

AssigneesDENSO International America, Inc., Denso Corporation

InventorShawn Hunt

Life of this patent

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Abstract

A system includes a processor and a memory in communication with the processor having one or more modules. The modules include instructions that cause the processor to receive first sensor information from a first sensor and second sensor information of a shared field of view. The instructions cause the processor to detect one or more objects within the shared field of view using the first sensor information and the second sensor information. When one or more discrepancies are identified between the one or more objects detected using the first sensor information and the one or more objects detected using the second sensor information are detected, the instructions that cause the processor to determine that the first sensor or the second sensor needs cleaning.

Claims17

Dependent claims

A system comprising:

a processor;
a memory in communication with the processor, the memory including a receiver module, an object detection module, and a pollution detection module;
wherein the receiver module includes instructions that, when executed by the processor, cause the processor to:
receive first sensor information from a first sensor mounted to a vehicle having a first field of view, and
receive second sensor information from a second sensor mounted to the vehicle having a second field of view, wherein at least a portion of the second field of view overlaps at least a portion of the first field of view to define a shared field of view;
wherein the object detection module includes instructions that, when executed by the processor, cause the processor to:
determine a number of objects detected within the shared field of view using the first sensor information, and
determine a number of objects detected within the shared field of view using the second sensor information;
and
wherein the pollution detection module includes instructions that, when executed by the processor, cause the processor to determine that one of the first sensor and the second sensor needs cleaning when there is a difference between the number of objects detected within the shared field of view using the first sensor information and the number of objects detected within the shared field of view using the second sensor information.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/158,430Filed 26 Jan 2021 · us provisional application
Priority: 16 Jul 2020
Published: US 2022/0021868 A120 Jan 2022
Granted: 20 Sep 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

H04N 17/002
Diagnosis, testing or measuring for television systems or their details: for television cameras
G01S 7/497
Of systems according to group G01S17/00: means for monitoring or calibrating
G01S 17/86
Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems: combinations of lidar systems…
G01S 17/931
For anti-collision purposes: of land vehicles

Family

Application63/052,680Us provisional application · filed 16 Jul 2020
US 2022/0021868 A1Pre-grant publication · published 20 Jan 2022
US 11,451,765 B2This patent

From the US filing history. Foreign family members aren’t listed.

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