基于FT245RL的快速胎儿心电采集系统  

A Rapid Fetal ECG Acquisition System Based on FT245RL

作　　者：付丙艮 杨祖元[1] 蔡坤[2] 谢胜利[1] 

机构地区：[1]广东工业大学自动化学院,广州市510006 [2]华南农业大学工程学院,广州市510642

出　　处：《中国医疗器械杂志》2014年第6期420-422,共3页Chinese Journal of Medical Instrumentation

基　　金：国家自然科学基金(61104053);广东省中国科学院全面战略合作项目(2012B091100279)

摘　　要：该文设计了一种快速胎儿心电信号采集系统,包括前端信号采集模块、微控制模块以及上位机软件应用模块。前两个模块分别由ADS1294芯片和STM32F103芯片来完成,最后一个模块在VC++平台上开发出来。通过使用FT245RL芯片,该系统实现了ARM与PC机之间的串并行转换通信方式,可以大大提高数据传输速率,同时其功耗低、精度高且结构简单,能够从母亲腹壁上采集到胎儿心电信号,并将其转换成24 bit的数字信号。A rapid fetal ECG signal acquisition system is designed, which includes three modules： a front-end signal acquisition module, a micro control module and a PC software application module. The first two modules are accomplished through the ADS1294 and the STM32F103 chips, respectively, and the third one is developed in VC＋＋ platform. By using the FT245RL chip, the proposed system implements the serial-parallel conversion communication between ARM and PC, improving the data transmission rate largely. Also, it has a simple structure, with low power consumption and high precision. Furthermore, it can collect fetal ECG signals from mother＇s abdominal wall and convert them into the 24-bit digital signals.

关 键 词：胎儿心电 ARM微控制器 ADS1294 FT245RL 

分 类 号：TN911.7[电子电信—通信与信息系统]