SYSTEMS AND METHODS FOR TRACKING MOTION OF A BICYCLE OR OTHER VEHICLES

摘要

A vehicle tracking system, in various embodiments, is configured to measure vehicle speed, heading, distance travelled, acceleration, and other motion related measurements based at least in part on magnetic field measurements taken by one or more magnetometers. In a particular embodiment, the system comprises one or more magnetometers (e.g., that may be embedded in one or more wearable devices, such as eyewear) and at least one magnet disposed on a portion of the vehicle such as the vehicle's wheel. The system is configured to receive magnetic field information associated with the at least one magnet using the one or more magnetometers and determine the speed and other data based at least in part on the magnetic field information. In various embodiments, the system is configured to track movement and speed of a bicycle.

主权项

1. A computer-implemented method of determining vehicle motion, the method comprising:
determining, by a processor, using one or more magnetometers, magnetic field information for a first magnet mounted on a wheel of a vehicle at a particular time; determining, by a processor, based at least in part on the magnetic field information, an angular velocity of the vehicle wheel at the particular time; determining, by a processor, based at least in part on the angular velocity, a speed of the vehicle at the particular time; and reporting the speed of the vehicle to a user of the vehicle.