MOBILE DEVICE IN-VEHICLE LOCALIZATION USING INERTIAL SENSORS
First Claim
1. A method of determining a position of a mobile device in a vehicle, the method comprising:
- determining a peak angular velocity time, while a vehicle is turning, at which a peak value of an angular velocity around a vertical axis of the vehicle occurs;
determining a peak lateral acceleration time, while the vehicle is turning, at which a peak value of linear acceleration along a lateral axis occurs, the lateral axis being perpendicular to the vertical axis and perpendicular to a longitudinal axis of the vehicle;
calculating a first time difference between the peak angular velocity time and the peak lateral acceleration time; and
determining, based at least in part on the time difference, whether a first mobile device is in a front area of the vehicle.
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Abstract
A peak angular velocity time, at which a peak value of an angular velocity around a vertical axis of a vehicle occurs while the vehicle is turning, may be determined. A peak lateral acceleration time, at which a peak value of linear acceleration along a lateral axis occurs while the vehicle is turning, also may be determined. The peak angular velocity time and the peak lateral acceleration time may be determined according to input from inertial sensors of a mobile device. The lateral axis may be perpendicular to the vertical axis and perpendicular to a longitudinal axis of the vehicle. A first time difference between the peak angular velocity time and the peak lateral acceleration time may be calculated. Based at least in part on the time difference, it may be determined whether the mobile device is in a front area of the vehicle.
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Citations
30 Claims
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1. A method of determining a position of a mobile device in a vehicle, the method comprising:
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determining a peak angular velocity time, while a vehicle is turning, at which a peak value of an angular velocity around a vertical axis of the vehicle occurs; determining a peak lateral acceleration time, while the vehicle is turning, at which a peak value of linear acceleration along a lateral axis occurs, the lateral axis being perpendicular to the vertical axis and perpendicular to a longitudinal axis of the vehicle; calculating a first time difference between the peak angular velocity time and the peak lateral acceleration time; and determining, based at least in part on the time difference, whether a first mobile device is in a front area of the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A non-transitory medium having software stored thereon, the software including instructions executable by a processor for:
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determining a peak angular velocity time, while a vehicle is turning, at which a peak value of an angular velocity around a vertical axis of the vehicle occurs; determining a peak lateral acceleration time, while the vehicle is turning, at which a peak value of linear acceleration along a lateral axis occurs, the lateral axis being perpendicular to the vertical axis and perpendicular to a longitudinal axis of the vehicle; calculating a first time difference between the peak angular velocity time and the peak lateral acceleration time; and determining, based at least in part on the time difference, whether a first mobile device is in a front area of the vehicle. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An apparatus comprising a control system that is capable of:
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determining a peak angular velocity time, while a vehicle is turning, at which a peak value of an angular velocity around a vertical axis of the vehicle occurs; determining a peak lateral acceleration time, while the vehicle is turning, at which a peak value of linear acceleration along a lateral axis occurs, the lateral axis being perpendicular to the vertical axis and perpendicular to a longitudinal axis of the vehicle; calculating a first time difference between the peak angular velocity time and the peak lateral acceleration time; and determining, based at least in part on the time difference, whether a mobile device is in a front area of the vehicle. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. An apparatus comprising control means for:
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determining a peak angular velocity time, while a vehicle is turning, at which a peak value of an angular velocity around a vertical axis of the vehicle occurs; determining a peak lateral acceleration time, while the vehicle is turning, at which a peak value of linear acceleration along a lateral axis occurs, the lateral axis being perpendicular to the vertical axis and perpendicular to a longitudinal axis of the vehicle; calculating a first time difference between the peak angular velocity time and the peak lateral acceleration time; and determining, based at least in part on the time difference, whether the apparatus is in a front area of the vehicle. - View Dependent Claims (27, 28, 29, 30)
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Specification