Hiroshima University in Japan and the University of Tokyo have developed a new type of sensor system that can amplify the weak pulse on the skin surface of the human body to detect the heart rate. This system is installed in the car seat, can catch the driver's fatigue and snoring signs, greatly reducing the traffic accident caused by fatigue driving. In addition, this system can also help the elderly manage health, or help the patient to keep abreast of the heart condition so that they can contact the doctor quickly in an emergency.
The sensor is wrapped with polyester with a thickness of about 2 cm as a cushioning material, and excess high-frequency noise such as talking sounds and vibrations when the car is driving can be shielded. The microphone in the sensor system can express the information captured by the oscillator as heart sounds. Heart sound refers to the sound formed by the contraction of the heart muscle, closure of the heart valve, and blood striking the ventricular wall, aortic wall, and the like.
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