基于单片机的脉搏测试手表的设计

Design of Measuring Pulse Watch Based on SCM

在当今的便携式医学设备领域,脉搏表已日益发挥出其显著的作用,它不仅可以用于临床心率监护,防止病人的突发情况,也可以为体力劳动者劳动强度测定、运动员及士兵训练强度测定等提供确凿的、必不可少的生理指标,实现对人们生理参数的实时监护。论文提出了脉搏测试手表系统设计方案,该系统由采集电路、滤波整形电路、电压放大电路、主控芯片和显示电路组成,通过PVDF传感器将脉搏信号采集进入滤波整形电路,经过滤波整形后利用放大器进行放大。该系统整体采用模块化的设计方式,功能清楚、便于设计,易于日后的修改、优化和提高。仿真结果初步确定了该电路的可行性。

Pulse-testing watch is a portable instrument which integrates life and health care,it can be applied to home,hospitals and other occasions.In clinical diagnosis,pulse-testing watch will also play a significant role,it not only can be used for clinical heart rate monitoring,preventing the emergency of patients,also can measure the labor intensity of manual workers,training intensity of athletes and soldiers.Finally it can realize the real-time monitoring for the physical parameters.This paper focuses on the design of the pulse test circuit and the simulation corresponded.The circuit system consists of data acquisition,filtering&shaping,voltage amplification,the main chip and display circuit.Pulse signal will be collected into the filter shaping circuit by the PVDF sensor,and then it will be filtered and be shaped by signal amplifies by voltage amplifier circuit.The system functions achieved by simulation results preliminarily determin the feasibility of the circuit.