基于MSP430单片机的便携式动态心电监护仪研制
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摘要
心血管疾病是威胁人类健康的主要疾病之一,早期诊断和治疗是预防心脏病的有效途径,而心电监护仪在其中发挥着至关重要的作用。本文基于动态心电监护仪的基本功能和特点,设计了一种基于MSP430F149单片机的便携式动态心电监护系统。
在硬件方面,以双8路复选器MAX397为基础,设计了心电导联选择电路,可在三个标准导联、三个加压导联、一个胸导联以及1mV定标电路之间任意切换;采用仪表放大器AD620设计了前级放大电路和右腿驱动电路,其后利用运算放大器设计了0.05-100Hz带通滤波电路、50Hz陷波电路和主放大电路;最后采用MSP430F149单片机作为数字电路核心,其负责外围电路的控制与通讯;利用液晶控制器S1D13700配合分辨率320~*240的液晶G320240E,实现了心电信号实时动态显示和直观的菜单设置界面,配合6键键盘,操作简单;采用2GB的SD卡不间断的实时记录数据,记录数据的时间可长达1个月;通过USB接口控制器CH372,系统可以方便的将存储设备中的心电数据送至上位机。在软件方面,采用结构化程序设计方法,完成了数字电路部分中各模块的初始化,使其能正常工作,并着重优化液晶模块显示算法,取得良好的效果。
经制作印制电路板并调试,软硬件实现了预期功能,并且工作稳定,性能良好,满足了便携式动态心电监护系统的要求。
系统整体体积小、重量轻,携带方便,适合在家庭中普遍推广。
Cardiovascular disease is one of main diseases that threat human health, and the early diagnosis and treatment are effective ways that prevent heart disease. ECG monitor is playing the very important role in among. Base on the dynamic ECG monitor basic function and feature, this paper has designed a portable dynamic ECG monitor based on MSP430F149 microcontroller.
In the hardware part, taking a dual 8-channel multiplexers MAX397 as the foundation, the author has designed the heart leads selecting circuit could switch among the three standard-leads, three augmented-leads, one chest-lead and 1mV calibration circuit; Using instrumentation amplifier AD620, the author has designed preamplifier circuit and driven-rignt-leg circuit; Behind them, using operational amplifier, the author has designed a 0.05-100Hz band-pass filter circuit, 50Hz notch filter circuit and main amplifier circuit; finally the author has taken MSP430F149 microcontroller as the digital circuit core, and it takes charge for the control and communication of its peripheral circuit; Using LCD controller S1D13700 and LCD G320240E with resolution 320*240, the author has realized dynamic real-time display of ECG signal and direct-viewing menu setting interface, and working with the 6-key keyboard, the manipulation is simple; The author has used 2GB SD card to record real-time data continuously, and the data recording time could reach 1 month; Using USB interface controller CH372, the system could transmit the date in storage device to upper computer conveniently. In the software part, using structuring program design method, the author has completed the initialization of various modules in the digital circuit part and made them work normally, and the author has optimized the algorithm of LCD module display, and got the good effect.
After making printed circuit board and debugging, the software and hardware has realized the anticipated function, and the system is stable and well-performing, and satisfies the request of portable ECG monitor system.
The overall system is small, light and convenient to carry, and is suitable to use in families.
在硬件方面,以双8路复选器MAX397为基础,设计了心电导联选择电路,可在三个标准导联、三个加压导联、一个胸导联以及1mV定标电路之间任意切换;采用仪表放大器AD620设计了前级放大电路和右腿驱动电路,其后利用运算放大器设计了0.05-100Hz带通滤波电路、50Hz陷波电路和主放大电路;最后采用MSP430F149单片机作为数字电路核心,其负责外围电路的控制与通讯;利用液晶控制器S1D13700配合分辨率320~*240的液晶G320240E,实现了心电信号实时动态显示和直观的菜单设置界面,配合6键键盘,操作简单;采用2GB的SD卡不间断的实时记录数据,记录数据的时间可长达1个月;通过USB接口控制器CH372,系统可以方便的将存储设备中的心电数据送至上位机。在软件方面,采用结构化程序设计方法,完成了数字电路部分中各模块的初始化,使其能正常工作,并着重优化液晶模块显示算法,取得良好的效果。
经制作印制电路板并调试,软硬件实现了预期功能,并且工作稳定,性能良好,满足了便携式动态心电监护系统的要求。
系统整体体积小、重量轻,携带方便,适合在家庭中普遍推广。
Cardiovascular disease is one of main diseases that threat human health, and the early diagnosis and treatment are effective ways that prevent heart disease. ECG monitor is playing the very important role in among. Base on the dynamic ECG monitor basic function and feature, this paper has designed a portable dynamic ECG monitor based on MSP430F149 microcontroller.
In the hardware part, taking a dual 8-channel multiplexers MAX397 as the foundation, the author has designed the heart leads selecting circuit could switch among the three standard-leads, three augmented-leads, one chest-lead and 1mV calibration circuit; Using instrumentation amplifier AD620, the author has designed preamplifier circuit and driven-rignt-leg circuit; Behind them, using operational amplifier, the author has designed a 0.05-100Hz band-pass filter circuit, 50Hz notch filter circuit and main amplifier circuit; finally the author has taken MSP430F149 microcontroller as the digital circuit core, and it takes charge for the control and communication of its peripheral circuit; Using LCD controller S1D13700 and LCD G320240E with resolution 320*240, the author has realized dynamic real-time display of ECG signal and direct-viewing menu setting interface, and working with the 6-key keyboard, the manipulation is simple; The author has used 2GB SD card to record real-time data continuously, and the data recording time could reach 1 month; Using USB interface controller CH372, the system could transmit the date in storage device to upper computer conveniently. In the software part, using structuring program design method, the author has completed the initialization of various modules in the digital circuit part and made them work normally, and the author has optimized the algorithm of LCD module display, and got the good effect.
After making printed circuit board and debugging, the software and hardware has realized the anticipated function, and the system is stable and well-performing, and satisfies the request of portable ECG monitor system.
The overall system is small, light and convenient to carry, and is suitable to use in families.
引文
[1]董承琅.实用心脏病.上海:上海科学技术出版社,1993
[2]山东医学院附属医院.实用心电图学.济南:山东科学技术出版社,1979
[3]黄宛.临床心电图学(第五版).北京:人民卫生出版社,1998
[4]郭继鸿.新概念心电图.北京:北京医科大学出版社,2000
[5]王宝华,罗立民.生物医学电子学.南京:东南大学出版社,2001
[6]上海第一、二人民医院.心电图、心向量图学.上海:上海人民出版社,1976
[7]余学飞.医学电子仪器原理与设计.广州:华南理工大学出版社,2000
[8]卢嘉烈.心电图诊断.北京:科学技术文献出版社,2002
[9]秦永文,徐晓璐.新编心电图诊断学.上海:科学技术出版社,2005
[10]郭继鸿,张萍.动态心电图学.北京:人民卫生出版社,2003
[11]郭继鸿.心电学进展.北京:北京医科大学出版社,2002
[12]刘群,洪大庆.动态心电图仪的临床应用与进展.南京:南京医科大学第一附属医院,2003
[13]张开滋.临床心电信息学.湖南:湖南科学技术出版社,2002
[14]宗伟,邵军,郑崇勋.心电监护的技术发展及展望.上海生物医学工程,1997,18(2):51-53
[15]何军.动态心电监护系统的发展和现状浅析.中国医疗器械信息,1997,3(6):11-12
[16]胡斌,薛守祥.动态心电图机的进展与选择.医疗设备信息,1997,(5):46
[17]黄智礼.一种遥测动态心电监护仪的研制,1994,6(3):9-10
[18]于绍东,张焰.便携式动态心电监护报警仪的研制.舰船科学技术,1996,6:29-35
[19]杨振野,叶晖,林家瑞.一种用于便携机的多功能心电前置放大器.生物医学工程学杂志,1997,14(4):400-401
[20]阴泽杰,吴会明,吴孝义,等.一种新型无线遥测心电专家系统.核电子学与探测技术,1997,17(3):218-220
[21]马言臣,臧明云,马言邦.对动态心电监护系统进行检测的探讨.中国计量,1998,(28):32
[22]单红旭,张永红,白净.兼具HOLTER功能的数字式心电遥测监护系统的研制.仪器仪表学报,1999,20(4):348-350
[23]安源,方克仁,任超世.动态心电监护系统的设计.中国心血管杂志,2000.5(4):239-241
[24]成转鹏,张跃.远程心电实时监护终端的设计与实现.计算机工程,2007,33(11):264-266
[25]汪金刚,张占龙,杨永明,等.一种远程动态心电监护系统的软件设计.计算机应用,2003,23:452-453
[26]吴宝明,朱凌云,卓豫,等.远程心电监护系统及动态心电信号自动分析的研究进展.中国医疗器械杂志,2006,30(5):352-358
[27]杨虎.远程心电监测仪原理与临床应用.医疗装备,2005,8(5):1-2
[28]代煜,唐文彦,李慧鹏.一种基于嵌入式USB HOST的心电数据存储系统.仪器仪表学报增刊,2005,26(8):223-226
[29]蒋贵龙,王哈力,赵岩.基于蓝牙技术的动态心电监护系统的开发,2006,(12):69-73
[30]郑凯,赵宏伟,张孝临.基于ZigBee网络的心电监护系统的研究.仪器仪表学报,2008,29(9):1908-1911
[31]刘晨光,张永红,白净,等.基于TMS320VC5402的便携式心电监护仪的研制.航天医学与医学工程,2004,17(2):135-139
[32]杨燕红,将阅锋.基于DSP和CF卡的动态心电监护系统.中国医疗器械杂志,2004,28(3):172-175
[33]蒋阅锋,杨燕红.基于ARM处理器和CF卡的动态心电监护系统.电子测量与仪器学报,2006,20(3):71-74
[34]王大雄,王国钧.基于嵌入式微机的便携心电监护仪设计.航天医学与医学工程,2005,18(3):196-200
[35]张石,董建成,佘黎煌.基于uC/OS-Ⅱ的心电监护仪软件系统设计与开发.计算机工程,2007,33(9):277-279
[36]霍铖宇,宁新宝,卞春华,等.基于嵌入式技术的便携式心电监护仪.计算机工程,2008,34(17):222-224
[37]刘培基.基于大容量闪存的HOLTER记录仪的设计.仪器仪表学报,2004,25(4):273-274
[38]叶树明,张文昌,陈杭.基于C8051F040单片机的便携式心电监护仪的低功耗设计.电子器件,2007,30(2):625-627
[39]谢宏韬,张永红,张菊鹏,等.基于80196KC单片机的便携式家庭心电血压监护仪的研制,2001,20(4):271-274
[40]安源,方克仁,任超世.24小时动态心电监护、分析系统的程序设计.中国医疗器械杂志,2001,25(1):23-25
[41]陈真诚,倪利莉,苏克平,等.一种能实现QRS波群参数测量的心电监护仪设 计.航天医学与医学工程,2002,15(4):246-249
[42]杨岸,周莉.便携式智能心电监护仪研究.辽宁工程技术大学学报,2003,22(2):231-233
[43]齐林,白净,张永红,等.多用户共享型便携式心电监护仪的设计与实现.航天医学与医学工程,2007,20(1):47-50
[44]卫虎娃,李燕.浅述心电图机的各种干扰.山西:山西临床医药,1996
[45]王磊.医用电极对心脑电图机检定的影响.中国计量,2007:54
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[2]山东医学院附属医院.实用心电图学.济南:山东科学技术出版社,1979
[3]黄宛.临床心电图学(第五版).北京:人民卫生出版社,1998
[4]郭继鸿.新概念心电图.北京:北京医科大学出版社,2000
[5]王宝华,罗立民.生物医学电子学.南京:东南大学出版社,2001
[6]上海第一、二人民医院.心电图、心向量图学.上海:上海人民出版社,1976
[7]余学飞.医学电子仪器原理与设计.广州:华南理工大学出版社,2000
[8]卢嘉烈.心电图诊断.北京:科学技术文献出版社,2002
[9]秦永文,徐晓璐.新编心电图诊断学.上海:科学技术出版社,2005
[10]郭继鸿,张萍.动态心电图学.北京:人民卫生出版社,2003
[11]郭继鸿.心电学进展.北京:北京医科大学出版社,2002
[12]刘群,洪大庆.动态心电图仪的临床应用与进展.南京:南京医科大学第一附属医院,2003
[13]张开滋.临床心电信息学.湖南:湖南科学技术出版社,2002
[14]宗伟,邵军,郑崇勋.心电监护的技术发展及展望.上海生物医学工程,1997,18(2):51-53
[15]何军.动态心电监护系统的发展和现状浅析.中国医疗器械信息,1997,3(6):11-12
[16]胡斌,薛守祥.动态心电图机的进展与选择.医疗设备信息,1997,(5):46
[17]黄智礼.一种遥测动态心电监护仪的研制,1994,6(3):9-10
[18]于绍东,张焰.便携式动态心电监护报警仪的研制.舰船科学技术,1996,6:29-35
[19]杨振野,叶晖,林家瑞.一种用于便携机的多功能心电前置放大器.生物医学工程学杂志,1997,14(4):400-401
[20]阴泽杰,吴会明,吴孝义,等.一种新型无线遥测心电专家系统.核电子学与探测技术,1997,17(3):218-220
[21]马言臣,臧明云,马言邦.对动态心电监护系统进行检测的探讨.中国计量,1998,(28):32
[22]单红旭,张永红,白净.兼具HOLTER功能的数字式心电遥测监护系统的研制.仪器仪表学报,1999,20(4):348-350
[23]安源,方克仁,任超世.动态心电监护系统的设计.中国心血管杂志,2000.5(4):239-241
[24]成转鹏,张跃.远程心电实时监护终端的设计与实现.计算机工程,2007,33(11):264-266
[25]汪金刚,张占龙,杨永明,等.一种远程动态心电监护系统的软件设计.计算机应用,2003,23:452-453
[26]吴宝明,朱凌云,卓豫,等.远程心电监护系统及动态心电信号自动分析的研究进展.中国医疗器械杂志,2006,30(5):352-358
[27]杨虎.远程心电监测仪原理与临床应用.医疗装备,2005,8(5):1-2
[28]代煜,唐文彦,李慧鹏.一种基于嵌入式USB HOST的心电数据存储系统.仪器仪表学报增刊,2005,26(8):223-226
[29]蒋贵龙,王哈力,赵岩.基于蓝牙技术的动态心电监护系统的开发,2006,(12):69-73
[30]郑凯,赵宏伟,张孝临.基于ZigBee网络的心电监护系统的研究.仪器仪表学报,2008,29(9):1908-1911
[31]刘晨光,张永红,白净,等.基于TMS320VC5402的便携式心电监护仪的研制.航天医学与医学工程,2004,17(2):135-139
[32]杨燕红,将阅锋.基于DSP和CF卡的动态心电监护系统.中国医疗器械杂志,2004,28(3):172-175
[33]蒋阅锋,杨燕红.基于ARM处理器和CF卡的动态心电监护系统.电子测量与仪器学报,2006,20(3):71-74
[34]王大雄,王国钧.基于嵌入式微机的便携心电监护仪设计.航天医学与医学工程,2005,18(3):196-200
[35]张石,董建成,佘黎煌.基于uC/OS-Ⅱ的心电监护仪软件系统设计与开发.计算机工程,2007,33(9):277-279
[36]霍铖宇,宁新宝,卞春华,等.基于嵌入式技术的便携式心电监护仪.计算机工程,2008,34(17):222-224
[37]刘培基.基于大容量闪存的HOLTER记录仪的设计.仪器仪表学报,2004,25(4):273-274
[38]叶树明,张文昌,陈杭.基于C8051F040单片机的便携式心电监护仪的低功耗设计.电子器件,2007,30(2):625-627
[39]谢宏韬,张永红,张菊鹏,等.基于80196KC单片机的便携式家庭心电血压监护仪的研制,2001,20(4):271-274
[40]安源,方克仁,任超世.24小时动态心电监护、分析系统的程序设计.中国医疗器械杂志,2001,25(1):23-25
[41]陈真诚,倪利莉,苏克平,等.一种能实现QRS波群参数测量的心电监护仪设 计.航天医学与医学工程,2002,15(4):246-249
[42]杨岸,周莉.便携式智能心电监护仪研究.辽宁工程技术大学学报,2003,22(2):231-233
[43]齐林,白净,张永红,等.多用户共享型便携式心电监护仪的设计与实现.航天医学与医学工程,2007,20(1):47-50
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