便携式胎动计数器的研制  

Development of Portable Fetal Movement Counter

作　　者：赵秀兰[1] 张元[1] 吕运朋[2] 薛艳明[1] 邓秋超[1] 

机构地区：[1]郑州大学机电工程系 [2]郑州大学物理工程学院,郑州450052

出　　处：《郑州大学学报（自然科学版）》2001年第1期76-79,共4页Journal of Zhengzhou University (Natural Science)

摘　　要：:在便携式胎动计数器的软、硬件设计中 ,针对孕妇腹部胎动信号成分复杂、信躁比较低的特点 ,在 A/D转换前 ,用硬件电路对信号隔直、放大、滤波 ;A/D转换后 ,在单片机内采用滤波技术和微分、积分技术对信号进行预处理及特征提取 ,然后用贝叶斯分类器进行模式识别 ,其正确识别率达 84 .35% .Introduce the software and hardware designing for portable fetal movement counter. Contraposing the point that FM signal composition complexity and low-SNR,before A/ D transition, the FM signal will be separated direct current,magnified and filtered by hardware circuit;after A/ D transition,the FM signal is pretreated and its features are eatracted. Finally,the correct rate of 84.35 % is gotten by using Bayesian classification to recognize the FM.

关 键 词：胎动信号 便携式计数器 传感器 单片机 胎动电子监护仪 模式识别 信号调理 

分 类 号：R714.7[医药卫生—妇产科学] TH724.02[医药卫生—临床医学]