應用於生醫系統之心律不整偵測與心電信號壓縮電路

Abstract

Due to the progress of living quality, people pay more attention to their health. Nowadays, many nations have emphasized on developing medical treatment including Taiwan. As the old age society becomes prevalent all over the world, future medical resources will be an urgent problem. With the rapidly developed technology we have, there are many ways we can do to help medical treatment progress. The semiconductor process has low cost, small volume and long-term use properties. Through the devices that are appended to the body, the health of patients and normal people can be monitored anytime. Meanwhile, they have the freedom to move. Thus, the living area of people that are old or suffered from chronic diseases can be expanded. Relatives and friends of them will have lower load to take care of them. Normal people will gain the security of their health. The medical human resources will be less consumed. We use TSMC 1P6M 0.18 μm standard CMOS process to realize our designed wireless ECG signal sensing system. It has internal circuits including analog front end (AFE), analog-to-digital converter (ADC), digital signal processing (DSP) circuit and wireless transmitter. I am responsible of the DSP circuits. It retrieves the ECG signal from the ADC and extracts the feature of the signal. It will compress the signal, too. Afterward, it will examine whether the person has the symptom of arrhythmia. It will also transmit the data according to each circumstance. Other circuits are designed by seniors and schoolmates in our laboratory. Together, we build up the ECG system-on-chip (SOC). In this work, we adopt universal asynchronous receiver/transmitter and transmitting module so we can connect with computers and other devices. Besides, we also use LabVIEW program to be a human-machine interface.