Vehicle, vehicle control method, method for recognizing gesture made outside vehicle
AssigneePATEO CONNECT+ Technology (Shanghai) Corporation
InventorYu Zhang
Life of this patent
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Abstract
A method for recognizing a gesture made outside a vehicle includes setting a frequency of an ultrasound based on a thickness of a vehicle shell of the vehicle and an attenuation coefficient of the vehicle shell, emitting a plurality of ultrasounds having the frequency outwardly from an inner side of the vehicle shell, receiving a plurality of reflected waves returned by an obstacle reflecting the plurality of ultrasounds, determining whether the obstacle is a hand according to time differences between emission times of the plurality of ultrasounds and reception times of the plurality of reflected waves corresponding to the plurality of ultrasounds, and recognizing the gesture of the hand in response to determining that the obstacle is the hand.
Claims20
A method for recognizing a gesture made outside a vehicle comprising:
- setting a frequency of an ultrasound based on a thickness of a vehicle shell of the vehicle and an attenuation coefficient of the vehicle shell, such that an attenuation of the ultrasound by the vehicle shell is less than or equal to a predetermined threshold;
- emitting a plurality of ultrasounds having the frequency from an inner side of the vehicle shell, and receiving a plurality of reflected waves returned by an obstacle reflecting the plurality of ultrasounds;
- determining whether the obstacle is a hand according to time differences between emission times of the plurality of ultrasounds and reception times of the plurality of reflected waves corresponding to the plurality of ultrasounds;
- determining a location of the hand and recognizing the gesture of the hand in response to determining that the obstacle is the hand;
- and
- performing a command based on the location of the hand and the gesture of the hand to control the vehicle.
A vehicle comprising:
- a vehicle shell;
- at least one ultrasound array located on an inner side of the vehicle shell, and the at least one ultrasound array emitting a plurality of ultrasounds with a specific frequency to outside of the vehicle shell and receiving a plurality of reflected waves reflected back by an obstacle;
- and
- a controller communicatively connected to the at least one ultrasound array and configured to:
- set the specific frequency of the plurality of ultrasounds based on a thickness of the vehicle shell and an attenuation coefficient of the vehicle shell, such that an attenuation of the plurality of ultrasounds by the vehicle shell is less than or equal to a predetermined threshold;
- determine whether the obstacle is a hand according to time differences between emission times of the plurality of ultrasounds and reception times of the plurality of reflected waves corresponding to the plurality of ultrasounds;
- determine a location of the hand and recognize a gesture of the hand in response to determining that the obstacle is the hand;
- and
- perform a command based on the location of the hand and the gesture of the hand to control the vehicle.
Dependencies are inferred from the claim text.