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US 12,071,106 B2Granted
Acoustic emission based device control
AssigneeMotional AD LLC
InventorAshwin Arunmozhi
Life of this patent
Estimating the term…
Abstract
Provided are methods for acoustic emission based device control. Some methods described also include receiving information associated with a first acoustic emission sensor, a second acoustic emission sensor, and a third acoustic emission sensor is received. In embodiments, the information corresponds to an event. In accordance with the first, second, and third acoustic emission sensor information, the first, second, and third timestamps, and a geometry of the surface, a unit vector is calculated from each acoustic emission sensor in the direction of the event's origin. Parameters are calculated based on the unit vectors. Systems and computer program products are also provided.
Claims20
A vehicle, comprising:
- acoustic emission sensors configured to detect vibrations generated from particles that collide with a surface of the vehicle, wherein a first acoustic emission sensor is at a first position on an arm of a wiper blade assembly, a second acoustic emission sensor is at a second position on the arm, and a third acoustic emission sensor is at a third position on the arm;
- at least one computer-readable medium storing computer-executable instructions;
- at least one processor communicatively coupled to the acoustic emission sensors and configured to execute the computer executable instructions, the execution carrying out operations including:
- receiving first acoustic emission sensor information from the first acoustic emission sensor, second acoustic emission sensor information from the second acoustic emission sensor, and third acoustic emission sensor information from the third acoustic emission sensor corresponding to an event;
- receiving a first timestamp associated with the first acoustic emission sensor information, second timestamp associated with the second acoustic emission sensor information, and third timestamp associated with the third acoustic emission sensor information;
- in accordance with the first, second, and third acoustic emission sensor information, the first, second, and third timestamps, and a geometry of the surface, calculating a unit vector from each acoustic emission sensor in the direction of an origin of the event;
- and
- calculating parameters associated with environmental conditions based on the unit vectors;
- and
- a control system communicatively coupled to the at least one processor, wherein the control system is configured to operate the vehicle based upon the parameters.
7 more elements
A method comprising:
- detecting, with at least one processor, vibrations generated from particles that collide with a surface of a vehicle, wherein a first acoustic emission sensor is at a first position on an arm of a wiper blade assembly, a second acoustic emission sensor is at a second position on the arm, and a third acoustic emission sensor is at a third position on the arm;
- receiving, with the at least one processor, first acoustic emission sensor information from the first acoustic emission sensor, second acoustic emission sensor information from the second acoustic emission sensor, and third acoustic emission sensor information from the third acoustic emission sensor corresponding to an event;
- receiving, with the at least one processor, a first timestamp associated with the first acoustic emission sensor information, second timestamp associated with the second acoustic emission sensor information, and third timestamp associated with the third acoustic emission sensor information,
- in accordance with the first, second, and third acoustic emission sensor information, the first, second, and third timestamps, and a geometry of the surface, calculating, with the at least one processor, a unit vector from each acoustic emission sensor in a direction of an origin of the event;
- calculating, with the at least one processor, parameters associated with environmental conditions based on the unit vectors;
- and
- operating, with the at least one processor, the vehicle based upon the parameters.
4 more elements
A non-transitory computer-readable storage medium comprising at least one program for execution by at least one processor of a first device, the at least one program including instructions which, when executed by the at least one processor, cause the first device to:
- detect vibrations generated from particles that collide with a surface of a vehicle, wherein a first acoustic emission sensor is at a first position on an arm of a wiper blade assembly, a second acoustic emission sensor is at a second position on the arm, and a third acoustic emission sensor is at a third position on the arm;
- receive first acoustic emission sensor information from the first acoustic emission sensor, second acoustic emission sensor information from the second acoustic emission sensor, and third acoustic emission sensor information from the third acoustic emission sensor corresponding to an event;
- receive a first timestamp associated with the first acoustic emission sensor information, second timestamp associated with the second acoustic emission sensor information, and third timestamp associated with the third acoustic emission sensor information,
- in accordance with the first, second, and third acoustic emission sensor information, the first, second, and third timestamps, and a geometry of the surface, calculate a unit vector from each acoustic emission sensor in the direction of an origin of the event;
- calculate parameters associated with environmental conditions based on the unit vectors;
- and
- operate the vehicle based upon the parameters.
4 more elements
Dependencies are inferred from the claim text.