Near-object detection using ultrasonic sensors
AssigneeAptiv Technologies AG
InventorsKevin J. Hawes, Qian Wang
Life of this patent
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Abstract
This document describes near-object detection using ultrasonic sensors. Specifically, when an object is in a near-object range or distance from a vehicle, an object-detection system of the vehicle can utilize raw range measurements and various parameters derived from the raw range measurements. The various parameters may include an average, a slope, and a variation of the range. In the near-object range, using the parameters derived from the raw range measurements may lead to increases in the accuracy and performance of a vehicle-based object-detection system. The increased accuracy in near-object detection capability enhances safe driving.
Claims20
A method comprising:
- receiving detected ranges from at least one ultrasonic sensor;
- monitoring parameters that are based on the detected ranges, the parameters including:
- an average of a plurality of the detected ranges, slopes of the plurality of the detected ranges, and variances of the plurality of the detected ranges;
- comparing the parameters to a plurality of entry parameters and exit parameters;
- and
- responsive to determining that the parameters satisfy the entry parameters, indicating that an object is within a near-object range;
- or
- responsive to determining that the parameters satisfy the exit parameters, indicating that there is not an object within the near-object range.
A system comprising at least one processor configured to:
- receive detected ranges from at least one ultrasonic sensor;
- monitor parameters that are based on the detected ranges, the parameters including:
- an average of a plurality of the detected ranges, slopes of the plurality of the detected ranges, and variances of the plurality of the detected ranges;
- compare the parameters to a plurality of entry parameters and exit parameters;
- responsive to a determination that the parameters satisfy the entry parameters, indicate that an object is within a near-object range;
- and
- responsive to a determination that the parameters satisfy the exit parameters, indicate that there is not an object within the near-object range.
Computer-readable storage media comprising instructions that, when executed, cause at least one processor to:
- receive detected ranges from at least one ultrasonic sensor;
- monitor parameters that are based on the detected ranges, the parameters including:
- an average of a plurality of the detected ranges, slopes of the plurality of the detected ranges, and variances of the plurality of the detected ranges;
- compare the parameters to a plurality of entry parameters and exit parameters;
- responsive to a determination that the parameters satisfy the entry parameters, indicate that an object is within a near-object range;
- responsive to a determination that the parameters satisfy the exit parameters, indicate that there is not an object within the near-object range;
- and
- responsive to a determination that one of the plurality of the detected ranges satisfies a range threshold that corresponds to a non-near-object, indicate that an object is at the one detected range.
Dependencies are inferred from the claim text.