METHOD OF AND SYSTEM FOR MEASURING PERFORMANCE DURING AN EXERCISE ACTIVITY, AND AN ATHLETIC SHOE FOR USE IN THE SYSTEM

摘要

A system for measuring the speed of a person while running or walking along a surface. A single acceleration sensor (8) measures the acceleration in the forward direction and provides an acceleration signal which is amplified (10) and subsequently sampled by an analog to digital converter (12). The digital signal is processed by a microprocessor (14) which executes an algorithm that determines the stride length and the stride duration from the digitized acceleration signal and calculates the speed and the distance traversed. The information thus obtained is transmitted by means of a radio frequency transmitter (16) and received by a radio frequency receiver (18) in a watch or other device (2) which comprises a display (20) which can be viewed by the runner or walker. The speed and distance traversed is displaced on the display (20), along with other useful information, such as average speed, maximum speed, total distance traversed, calories expended, and heart beat.