Research And Design Of Medical Monitoring System Based On Wearable Equipment

With the rapid development of society and economy,people's pressure is becoming higher and the work is also becoming more intense as a result the morbidity of heart attack is increasing.Population of aging is rising gradually,the percentage of the empty-nesters is increasing,and the old staying in the empty house lives alone badly.Thus,they are suffered from the sudden cardiovascular disease(CVD)which is not treated in time or other sudden serious diseases.Therefore,the prevention and timely treatment of heart disease is the key to health.Electrocardiogram signal is the most intuitive performance to.see whether the heart is healthy or not.It reflects the heart's working situation,through analyzing and diagnosing every waveform to judge whether the heart has a lesion.Nowadays there are two kinds of common EKGs in the market.One is a professional ECG machine for hospitals use.The other kind is simple embedded portable ECG monitor equipment.At present,to detect ECG signal needs to go to the hospital.But the ECK machine is heavy and the 'cost is expensive.Portable ECG monitor equipment is too simple.Because it only shows the electrocardiogram,but cannot send electrocardiogram signals for doctors' diagnose though Internet.Therefore,it is significant to design an efficient and convenient machine which can help to diagnose patients' disease especially empty nesters condition quickly.Under the background of deepening development in science and technology and the basis of electronic technology and wireless communication technology,the wearable devices of medical monitoring system has been researched and developed,which can be used in ECG signal acquisition,ECG data storage,ECG data transmission,ECG display,ECG characteristic signal extraction,and give diagnostic analysis of abnormal heart rhythms to achieve the facilitation and versatility of equipment.The system design consists of two parts:the first part:wearable devices,the second part:intelligent terminal.Wearable devices consist of a modulus conversion chip ADS1292,a embedded microcontroller processor MSP430F5438 and a low power Bluetooth 4.0 chip CC2540;the terminal part based on an intelligent phone with Android system,to realize the ECG data receiving,processing,displaying and analysising etc.The innovative point of paper is:First,the design adopts single-chip microcomputer MSP430F5438 with ADS1292 modulus conversion chip solution,and through MSP430F5438 ADS 1292 is able to configure and read the AD conversion results.The design item can make the wearable equipment more convenient and lower cost.Secondly,low power wireless 4.0 technology can realize the wearable characteristics of the equipment.In addition,based on software and hardware low power designs,it is able to be worn for a long time to collect data without charge,convenient for the user.Again,the communication protocol based on the Android system phone and low power Bluetooth device,make the data more countable and stable.The data processing based on Android intelligent terminal can make the UI more friendly.Finally,the futile signal in the electrocardiogram signal is removed by digital filter and data processing algorithm is applied in intelligent health monitoring system to smartly detect abnormal heart rate,and realize the extraction of characteristic signal and heart rate.