A Wearable 12-lead Dynamic ECG Detection System Based On Fabric Electrodes

In recent years,China’s social economy and other aspects have achieved rapid development and achieved remarkable achievements.However,with the development of society and the acceleration of urbanization,the health problems of residents began to emerge.Problems such as the aging of the population and people’s unhealthy lifestyles have led to a sharp increase in the number of residents suffering from cardiovascular disease in recent years.And there is a tendency for cardiovascular diseases to spread to younger and lower income groups.According to the national health department,the number of cardiovascular patients will continue to grow rapidly in the coming period.Because of its characteristics of rapid onset and high mortality,cardiovascular disease threatens the life and health of patients in the long-term,so it is crucial for the early detection and early diagnosis of cardiovascular diseases.The monitoring of cardiovascular diseases has become an important research topic in the medical field.With the rapid development of new materials technology,sensor technology,electronic technology and computer science,it provides technical support for the research and development of wearable cardiovascular disease monitoring systems.The wearable 12-lead dynamic ECG detection system based on fabric electrodes designed in this paper will help improve the accuracy of cardiovascular alert system and reduce the mortality rate of cardiovascular disease.It has important implications for patients with cardiovascular disease.The system used wearable ECG sensors based on flexible fabric electrodes and special signal acquisition and processing technologies to achieve long-term and continuous ECG detection under comfortable wearable state.Based on this,we conducted a study of the cardiovascular monitoring system in real time.It provides theoretical and technical foundations for the development of wearable health monitoring scientific instruments that are wearable,high-precision,intelligent,and real-time.For the skin-electrode interface,a wearable micro-displacement dry fabric electrode and an elastic stretchable wire structure are designed to achieve comfortable wear of the conductive electrode.It could ensure good contact between the electrode and the skin while avoiding the use of sensitive substances such as conductive pastes.For signal acquisition and processing,In order to suppress motion artifacts,an adaptive filtering scheme based on skin-electrode interface impedance is used.Using high-performance physiological signal acquisition chip ADS1298 and AFE4300 of TI company to detect human ECG signal and skin-electrode interface impedance signal in real time,and to complete data acquisition and transmission through ultra-low-power microcontroller MSP430F5529 and finally achieve data filtering and real-time display on personal computer.For signal monitoring and evaluation,changing the traditional offline heart rate variability analysis strategy.A real-time heart rate variability analysis algorithm was designed to realize real-time monitoring of cardiovascular disease.