Physiological Signal Acquisition System Developed

Being people more and more interestering at life quality, equipment of family doctor have bigger and bigger market. So, convenience taking family doctor equipment rushed on the medical treatment market. This kind of machine not only can give a probably judge about health of people, but also can be used as an assistant method for hospital. Some of this also can do elementary treatment for patient.This article introduced this kind of family doctor, measuring three signals of people, such as ECG, SatO2 and blood pressure, and storaged in memorizer temporarily, at last transmitted to personal computer for need. This family doctor used singlechip (C8051F020) as CPU, extending ECG circuitry, SatO2 circuitry, blood pressure circuitry, LCD circuitry and USB system, for collecting, transacting, displaying and transmission. We all know, singlechip system has favorable stability. Use singlechip as CPU, the whole system will have a stably condition. LCD system choosed SED1335 as controller, this one can display text and graph at one time. At last, this equipment extended USB system for transmitted temporarily singals for personal computer. The whole system also has software used in personal computer for upper management.