Design Of Heart Sounds Electronic Auscultation System Based On MSP430

Heart disease has always been the no.1 health problem for human beings. At present,Heart sounds auscultation is the principal means of preventing heart disease in clinic. Health is the foundation of life, the physical examination is effective measures to find this kind of disease early. So each phase of the healthy physical examination has become an important stage to prevent such disease. The hospital has not complete diagnostic system for heart sounds. The traditional heart auscultation may cause the doctor’s fatigue, and judgment may be error because of each doctor’s subjective factor. The traditional heart auscultation is nether auscultation for many people at the same time, nor display real-time waveform diagram, so people’s demand for heart sounds auscultation is higher and higher. More rapid, accurate and convenient auscultation become the mainstream research.Aiming at these deficiencies, this thesis is divided into four parts to study. The first part is the heart sounds acquisition, by magnifying the filter circuit convert the body’s biological signals into electrical signals. The second part is the signals AD conversion, using the MSP430 as the main chip, converts analog signals into digital signals, so that it’s convenient to storage and transmission. The third part is to deliver the data to the computer through the WI-FI module. The fourth part is the website design, it will transfers the signals into phonocardiogram, through software programming. Then people can know their own health by the smart phones and personal computer.This thesis research can solve the problem that a number of doctors can not auscultative many people at the same time. people can access the server to know their own health through the network. The system will be shorten the examination process and improve the efficiency. The test results show that the first and second heart sounds are clear after hardware filtering, heart sounds waveforms can be displayed in the PC, Users can visit the Website to get information. the system work is stable, reliable and achieve the expected, there is a certain market prospects.