Patent ID: 6924764

Claim:
A dynamic information monitoring system adapted to monitor information about a skier during skiing, comprising: an acceleration sensing module having an output terminal for output of an acceleration signal corresponding to a detected acceleration of a skier during skiing; a GPS signal receiving module having an output terminal for output of received GPS signals; a microprocessor coupled to said output terminal of said GPS signal receiving module for receiving said GPS signals therefrom, said microprocessor being coupled to said output terminal of said acceleration sensing module for receiving said acceleration signal therefrom, said microprocessor including calculating means for calculating dynamic information about the skier's current coordinate position, speed, uphill/downhill inclination angle, and relative height during skiing based on said received GPS signal and acceleration signal, said calculating means using said received GPS signals to compute a true speed of the skier during skiing at each of a plurality of different times, and then calculating an acceleration of the skier using a change in speed calculated between two different times, said calculating means using a combination of said calculated acceleration, said acceleration signal from said acceleration sensing module and a value for gravitational acceleration to calculate the uphill/downhill inclination angle of the skier's skis; a wireless transmitter connected to said microprocessor for transmitting said calculated dynamic information about the skier's current coordinate position, speed, uphill/downhill inclination angle, and relative height during skiing; and a signal-receiving module for receiving said transmitted calculated dynamic information about the skier's current coordinate position speed uphill/downhill inclination angle, and relative height during skiing.