移动式生物信号检测装置的方案.docVIP

III PAGE  PAGE 26 移动式生物信号检测装置 设计方案 基于MSP430单片机的生物信号检测系统 学 校：成都信息工程学院 队伍名称：EDA 零组 参赛队员：余海 曾锐 王发修 指导教师：姚振东 摘 要 本生物信号检测系统以超低功耗的MSP430单片机为中央处理单元，以MCS-51单片机作为上位机，将收到从机的信息加以显示与判断。通过LCD液晶屏显示所测数据的波形，特征。 硬件电路部分主要采用对微弱的生物电讯号，如 心电，呼吸值，体温，血压等信号进行放大，滤波，去干扰，采集等。做到滤谐波，工频信号，做到较精确的测到所需要的信息的一个系统。所选用的电源是可工作长时间的圆形锂电池。上位机主要是一个数据的分析和显示，主要硬件电路为数据接受无线模块和液晶显示电路。 软件系统部分主要包括以下几步份： 数据采集机：（即下位机）微弱电信号经放大·滤波·去干扰后的ADC转换，MSP430对ADC过来的数据的采集； 数据存储（下位机单片机内部RAM，暂存） 数据转存/发射（FSK调制的无线收发模块） 数据处理机：（即上位机）数据接收和处理，按存储的进栈先后，读出数据，对数据处理并做显示以及基本的医学分析。 本系统利用开发工具Keil 51和IAR-MSP430进行编程开发，通过串口和ISP方式烧录程序。这些工具的使用，使得软件的设计编程和调试工作得到了保证。 关键字：移动式，生物电信号，检测系统，数据转存，上位机，下位机，LCD显示。 Abstract The biological signal detection system to ultra-low power MSP430 MCU to the central processing unit to MCS-51 SCM as a PC, will receive the information from the machine to be displayed with the judgement. Through the LCD screen shows the measured data waveform, characteristics. Some of the major hardware used on the weak telecommunications, biotechnology, such as cardiac, respiratory value, body temperature, blood pressure, such as signal amplification, filtering, to interference, such as acquisition. Harmonic filters do, the frequency signals so that more accurate measurement to the information needed by a system. The power of choice is a long time to work the radio lithium batteries. PC is primarily a data analysis and show that the major hardware for wireless data receiving and LCD module circuit. Some of the major software systems, including the following steps: 1, data acquisition machine: (that is, under the crew) to enlarge the weak signal filtering ? ? ADC to interfere with the conversion, MSP430 the ADC from the collection of data; 2, data storage (SCM crew internal RAM, temporary) 3, transfer of data / launch (FSK modulation radio transceiver module) 4, data processor: (PC) data reception and processing, according to stack one after another into the store, Duchushuoju, data processing and do shows and basic medi