Wireless Heart Rate Monitoring Using Sound Sensor

This paper presents a wireless health care device to monitor the patients’ heart rate. There are a variety of methods to measure cardiac cycle: optical sensor, one lead of ECG, sound sensor, etc. This proposed general algorithm is to measure the sounds of the heart rhythm transmitted from the heart to the patient's chest, and these sound signals are used to calculate the heart rate. This chosen method is simpler and lower cost compared to the others. The most important necessary thing is that the designed device has high accuracy shown in the results. This device is used to replace the workday routine of the doctors. Although they do not need to visit the patient’s room, the doctors can still receive information about their patients’ heart rate. These data can transfer from the measuring devices to the display devices. By following this method, doctors or nurses can always update the status of patients and immediately improvise them. This system can be worn easily on the patients’ chest. The patients can wear it all the time while still feeling so comfortable. This device is expected to be used in the hospitals to monitor the heart rate of the patients for a long time. At the hospital settings where medical equipment is quite limited, this device is a good solution because it is compact, convenient and affordable.