医用多道生理记录仪数字化装置研制  

Development of Digital Device for Medical Multi-Channel Physiological Recorder

作　　者：王秋静[1] 李天舒[1] 吕文伟[1] 安钢[1] WANG Qiujing;LI Tianshu;LV Wenwei;AN Gang(College of Basic Medical Sciences,Jilin University,Changchun Jilin 130021,China)

机构地区：[1]吉林大学基础医学院,吉林长春130021

出　　处：《中国医疗设备》2020年第4期39-41,59,共4页China Medical Devices

基　　金：吉林大学实验技术项目(2013SYJS-A18)。

摘　　要：目的设计一种数据采集系统,使老式医用多道生理记录仪实验数据数字化。方法选用MSP430F149单片机片内的ADC12模块和FLASH存储芯片,对医用多道生理记录仪数据采集系统进行设计。在硬件电路的设计中,主要介绍MSP430F149单片机的外围接口电路和单片机与微机系统之间的RS232通信电路;在软件的研发中,用C语言开发MSP430F149单片机的定时A/D转换程序和单片机与微机系统之间的RS232通信程序。结果将老式医用多道生理记录仪模拟实验数据通过单片机A/D转换为数字实验数据,并经过通信存储在微机中。采集系统能够实现多通道数据采集,采集结果准确度高。结论该数据采集系统具有成本低、结构简单、可靠性高等特点,可广泛用于机能学实验的生物信号检测、汇录和分析硬件系统。Objective To design a data acquisition system to digitize the experimental data of the old medical multi-channel physiological recorder.Methods ADC12 module and FLASH memory chip in MSP430F149 microcontroller were selected to develop the data acquisition system of medical multi-channel physiological recorder.In the design of hardware circuit,the peripheral interface circuit of MSP430F149 microcontroller and the RS232 communication circuit between microcontroller and microcomputer system were mainly introduced.In the development of software,the timing A/D conversion program of MSP430F149 microcontroller and the RS232 communication program between microcontroller and microcomputer system were developed by C language.Results The analog experimental data of the old medical multi-channel physiological recorder were digitized by A/D conversion program,and stored in the microcomputer through communication.The acquisition system could realize multi-channel data acquisition,with high accuracy.Conclusion The data acquisition system has the characteristics of low cost,simple structure and high reliability,and can widely used in the hardware system of biosignal detection,recording and analysis in the functional experiments.

关 键 词：医用多道记录仪 MSP430F149单片机 A/D转换 数字化 

分 类 号：R318[医药卫生—生物医学工程] R197.39[医药卫生—基础医学]