基于STC89C51的脉搏频率计设计  

Design of a pluse measurement system based on STC89C51

作　　者：黄保瑞[1] 杨延宁[1] 杨世平[1] 张凯[1] 

机构地区：[1]延安大学物理与电子信息学院,陕西延安716000

出　　处：《信息技术》2016年第10期74-75,80,共3页Information Technology

基　　金：延安市科技计划项目(2014HM-01)

摘　　要：以STC89C51单片机为核心设计了一种便携式脉搏频率计,介绍了该系统的工作原理、硬件构成和软件设计流程。系统采用红外传感器接收脉搏信号,运用硬件和软件双重滤波技术实现对脉搏频率信号的准确检测,测量结果用LCD1602显示。测试表明,所设计的便携式脉搏频率计能够满足医护中脉搏测试的要求,并具有电路结构简单、成本低、便于携带等特点。As core of STC89C51 microcomputer this paper designs a pulse measurement system,introducing the system's working principle,hardware structure and software design process. The system uses infrared sensor to receive pulse signal. Both hardware and software dual filtering technology achieve accurate detection of pulse frequency signal. The results of the measurement display with LCD1602. The tests show that the design of pulse measurement system is suit for the medical pulse testing requirement,it has the characteristic of simple circuit structure,low cost,easy to carry etc.

关 键 词：频率计 STC89C51 LCD1602 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]