A WEARABLE HEART RATE AND ACTIVITY MONITOR SYSTEM

摘要

A wearable heart rate and activity monitor system has a heart rate monitor package (1) and a communications package (2). The heart rate monitor package has sensors capable of sensing fluctuations in a bioelectric field without skin contact. The communications package (2) combines with the heart rate monitor package (1) to form a clip capable of attachment to clothing to operate overlying a user's chest in the region of their heart without the use of a chest strap. The communications package is charged from the heart rate monitor package during use. The communications package may be separated from the heart sensor package and installed in a frame of a wrist band. The frame (40) has arcuate ends to which the strap (3b) is attached by a spring (43) which obviates the requirement for lugs or other projecting features on the frame. The system generates an electric field at a frequency hundreds or thousands of times the heart field frequency to confirm that the sensors (12) have good connectivity with the heart field. An active filter is developed from a motion sensor to filter signals from non-heart muscle activity.