Sensor and event system, and associated methods
First Claim
1. A sensor, comprising a processor, a first accelerometer, a RF section, and temperature drift correction circuitry, the first accelerometer sensing one or both of vibration and free fall data, the processor connected with the accelerometer and utilizing an adaptive filter to process the data to determine sports metric information, the RF section communicating the information wirelessly to external devices, and the temperature drift correction circuitry compensating for temperature changes in the sensor to reliably communicate the information to the external devices.
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Accused Products
Abstract
The system of the invention is used in measuring sports metrics at an event or venue. The system includes “n” sensors, “m” repeaters, a base station and an operations terminal. One or more sensors attach to each athlete (and/or the athletes vehicle) at the event or venue to determine a sports metric, e.g., airtime, g'"'"'s, drop distance, spin, rotation. The information about the sports metric is transmitted to one or more repeaters; and that information is relayed to the base station. The operations terminal provides a user interface, and may further interface with a judging station or TV to provide the sports metric, in near real-time, to judges, viewers and others at the event or venue.
131 Citations
10 Claims
- 1. A sensor, comprising a processor, a first accelerometer, a RF section, and temperature drift correction circuitry, the first accelerometer sensing one or both of vibration and free fall data, the processor connected with the accelerometer and utilizing an adaptive filter to process the data to determine sports metric information, the RF section communicating the information wirelessly to external devices, and the temperature drift correction circuitry compensating for temperature changes in the sensor to reliably communicate the information to the external devices.
- 5. A method of determining airtime, comprising the steps of mounting at least one accelerometer with free fall detection to an athlete, detecting level shifts of acceleration data to determine airtime, and using an adaptive filter to finesse the determination of airtime.
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10. A method for determining airtime from acceleration data acquired from a ski, comprising mounting one or more accelerometers with the ski and monitoring frequencies of data from the accelerometers to detect airtime based upon change information in one or more frequencies of data, and processing the data with adaptive filters to compensate data for snow conditions and for reducing noise generated from ski clicks, the ski clicks defined by two skis connecting during an airtime event.
Specification