MOVEMENT DETECTOR, POSITION RELATION DETECTOR, PHYSICAL ACTIVITY LOAD DETECTOR, AND PORTABLE MONITOR

摘要

A movement detector detects values of the peak of acceleration each of three direction perpendicular to one another applied to the movement detector and detects the time intervals between peaks in the three directions. The movement detector calculates the peak cycle indicative of the average value of the peak-to-peak time of each direction. If the peak cycles of at least two directions or twice the peak cycles is within a predetermined first set range, the movement detector judges that the person being monitored and carrying the movement detector is walking. Contrarily, if the peak cycles of the two directions are out of the first set range, it judges that the person is not necessarily walking.