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1、郑州大学西亚斯国际学院本科毕业论文（设计）题 目 基于单片机的模拟病房呼叫系统指导教师 武丽 职 称 硕士 学生姓名 胡啸 学号 20071521117专 业 电信 班级_一班_院 （系） 电子信息工程 完成时间 2010 年 4 月 15 号 IIIII基于单片机的模拟病房呼叫系统摘 要病房呼叫系统是传送临床信息的重要手段,可将病人的请求快速传送给值班医生或护士,它主要用于协助医院病员在病床上方便地呼叫医务人员，是提高医院和病室护理水平的必备设备之一。让患者需要服务时，只要按一下随身携带的呼叫器，信息立马就能传至护工处.避免没有看护人在时,病人急需服务却无法通知医生的情况.它要求及时、准确、
2、可靠、简便可行、利于推广。病房呼叫系统主要是指当呼叫源有呼叫信号时,在系统上有相应的声、光呼叫信号指示,并能显示出呼叫号码。此系统主要由S51单片机，四个按键，四个数码管，四个指示灯，四个蜂鸣器组成。每个病房有 4 个床位，每个病人要呼叫可以按键，同时会有不同的蜂鸣器响，不同的数码管显示床位号，相应的指示灯亮。这里主要想用其它 I/O 口模拟串口显示，这是编程的关键。关键词 病房呼叫/单片机/串口显示IVWARD-BASED CALL SYSTEM MICROCONTROLLER SIMULATIONABSTRACTThe hospital Ward Calling System is ser
3、ving as an important method to send quickly the request information from patients to the doctors or nurses on duty. It is mainly used as a helper for the patients in sickbed to call the medical personnel conveniently. And it is also an essential equipment to enhance the nursing level of the hospital
4、 and medical personnel. Once the patients need help, they just click the pagers carried on and then the request information would be transmitted to nursing staff. With the help of this system, any request for urgent service needed by patients could be noticed even patients are unattended to notify d
5、octors. Therefore, this system should be timely, accurate, reliable, feasible and promotable.The hospital Ward Calling System mainly refers that when the call source signals, there would be corresponding audio and optical signals displayed on the system as well as the calling number. This system is
6、mainly composed of S51 single chip, 4 buttons, 4 digital tubes, 4 indicating lamps, and 4 buzzers. There are 4 beds in each ward and every patient who wants to call could press the button, meanwhile, different buzzers ring, different digital tubes display the bed numbers, with the corresponding indi
7、cating lamp lightening. Here is mainly to use other I/O simulation serial port to do demonstration, which is the key to this programming.KEY WORDS Hospital ward calling, single chip machine, serial port demonstration V目 录中文摘要 .II英文摘要 .III1 引言 .11.1 背景与意义 .11.2 研究内容 .22 系统硬件设计 .32.1 系统原理框图 .32.2 各模块设
8、计 .42.2.1 LED 显示模块设计 .42.2.2 键盘模块设计 .62.2.3 声音模块设计 .62.2.4 接口电路设计 .62.3 单片机介绍 .72.4 主要元器件介绍 .72.4.1 51 单片机与 74HC164 静态显示接口 .72.4.2 单片机 AT89S51 介绍 .83 系统软件设计 .123.1 系统总流程图 .123.2 各模块功能设计 .133.3 计数器延时设定 .143.3.1 计数器硬件延时 .14VI3.3.2 软件延时 .153.4 系统平台介绍 .163.4.1 汇编语言介绍 .163.4.2 伟福软件简介 .173.4.3 Protel99SE 介绍 .183.4.4 Protel99SE 原理图绘制 .
