Heartbeat sensor monitoring

Heartbeat monitoring is a personal device that allows one to measure one’s heart rate in real time or record the heart rate for later study. It is largely used by performers of various type of physical exercise. Early models consisted of a monitoring box with a set of electrode leads which attached to the chest. The firs wireless heart rate monitor was invented in 1997. As ‘intensity training’ became a popular concept in athletic circles in the mid-80s. Modern heart rate monitors usually comprise two elements, a chest strap transmitter and a wrist receiver or mobile phone. So in our project we use infrared light. This is archived by production of infrared light by internal bulb, as infrared light is absorb by the blood, a sensor measure the amount that the infrared light is darkened by. If it is significantly darker, due the pulse causing a temporary increase in the amount of blood that travelling through the measured area, that is counted as a pulse. There are a wide number of receiver designs with various features. These include average heart rate over exercise period, time in a specific heart rate zone, calories burned, breathing rate, built-in speed and distance, and detailed logging that can be downloaded to a computer.