Method and apparatus to measure motion characteristics for bicycles and any vehicles on wheels
First Claim
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1. A sensor system for use with a host device and a vehicle comprising a frame and at least one wheel, the sensor system comprising:
- a first sensor associated with the at least one wheel of the vehicle, where the first sensor is configured to sense raw wheel data indicative of a rotational movement of the at least one wheel, the raw wheel data being sensed with respect to one of;
a magnetic pole of the Earth or a magnet attached to the frame;
a microcontroller configured todetect, during the rotational movement of the at least one wheel, changes in the raw wheel data; and
determine, based on the changes in the raw wheel data, wheel data, the wheel data including a rotational angle of the at least one wheel, a full revolution count of the at least one wheel an angle of a revolution of the at least one wheel, a rotational direction of the revolution of the at least one wheel, and an angular acceleration of the at least one wheel; and
a transmitter configured to transmit the wheel data to the host device.
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Abstract
A sensor system for use with a host device a vehicle having a frame and at least one wheel. The sensor system has a first sensor associated with the at least one wheel of the vehicle. The first sensor generates wheel data indicative of movement of the wheel. The wheel data may be rotational angle, full revolution count, angle of a revolution, direction of revolution, and angular acceleration with respect to a magnetic pole of the Earth or a magnet attached to a frame. The sensor transmits the wheel data to the host device.
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Citations
24 Claims
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1. A sensor system for use with a host device and a vehicle comprising a frame and at least one wheel, the sensor system comprising:
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a first sensor associated with the at least one wheel of the vehicle, where the first sensor is configured to sense raw wheel data indicative of a rotational movement of the at least one wheel, the raw wheel data being sensed with respect to one of;
a magnetic pole of the Earth or a magnet attached to the frame;a microcontroller configured to detect, during the rotational movement of the at least one wheel, changes in the raw wheel data; and determine, based on the changes in the raw wheel data, wheel data, the wheel data including a rotational angle of the at least one wheel, a full revolution count of the at least one wheel an angle of a revolution of the at least one wheel, a rotational direction of the revolution of the at least one wheel, and an angular acceleration of the at least one wheel; and a transmitter configured to transmit the wheel data to the host device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A sensing method for use with a host device and a vehicle comprising a frame and at least one wheel, the method comprising the steps of:
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associating a first sensor with the at least one wheel of the vehicle; sensing, by the first sensor, raw wheel data indicative of a rotational movement of the at least one wheel, the raw data being sensed with respect to one of;
a magnetic pole of the Earth or a magnet attached to the frame;during the rotational movement of the at least one wheel, detecting, by a microcontroller, changes in the raw wheel data; determining, by the microcontroller, based on the changes in the raw wheel data, wheel data, the wheel data including a rotational angle of the at least one wheel, a full revolution count of the at least one wheel, an angle of a revolution of the at least one wheel, a direction of the revolution of the at least one wheel, and an angular acceleration of the at least one wheel; and transmitting, by a transmitter, the wheel data to the host device. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A sensor system for use with a host device a vehicle comprising a frame and at least one wheel, the sensor system comprising:
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a first sensor associated with the at least one wheel of the vehicle, where the first sensor comprises a first magnetometer; and a second sensor associated with the frame of the vehicle, where the second sensor comprises a second accelerometer and a second gyroscope; wherein the first sensor is configured to sense raw wheel data indicative of a rotational movement of the at least one wheel, the raw data being sensed with respect to one of;
a magnetic pole of the Earth or a magnet attached to the frame, the raw wheel data being sensed based on raw data generated by at least one of the first magnetometer;wherein the second sensor is configured to sense frame data indicative of a movement of the frame with respect to a direction of gravity, the frame data being sensed based on raw data sensed by at least one of the second accelerometer and the second gyroscope; a microcontroller configured to; detect, during the rotational movement of the at least one wheel, changes in the raw wheel data; and determine, based on the changes in the raw wheel data, wheel data, the wheel data including a rotational angle of the at least one wheel, a full revolution count of the at least one wheel, an angle of a revolution of the at least one wheel, a direction of the revolution of the at least one wheel, and an angular acceleration of the at least one wheel; and a transmitter configured to transmit the wheel data and the frame data to the host device. - View Dependent Claims (20, 21, 22, 23, 24)
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Specification