课课 程程 设设 计计 说说 明明 书书课程名称：课程名称：电子技术课程设计题题 目：目：医院住院病人“呼唤”器学学 院：院：信息科学与工程学院专专 业：业：电子科学与技术年年 级：级：级学学 生：生：学学 号：号：指导教师：指导教师：xx完成日期：完成日期：2015 年 12 月 27 日I大学课程设计说明书课程设计题目课程设计题目摘摘 要：要：住院病人经常需要医护人员及时诊治和护理，但医护人员又不能时刻守在病人身边，当手术后病人或输液、输氧病人急需医护人员治疗处理时，只需方便的按动床位开关“呼唤“，则病人可得到有效医护。因此，在病床边要设置床位按钮开关，在病房设置微型发射器。为能准确判断“呼唤”信号是哪个床位病人发出的，须对床位开关进行编码。编码信号（二进制代码）通过发射器发出。在医护人员值班室安装信号接收器，接收信号通过译码驱动电路，使显示器显示出病人的床位号码。同时，接收器启动声响电路，使扬声器发出声音通知值班室医护人员。 关键词：关键词：编码器 发射器 接收器 数码管 译码驱动器AbstractAbstract： In-patient needs the medical care personnel to diagnose and nursing promptly frequently, but the medical care personnel cannot defend frequently side the patient, when after the surgery, the patient or the infusion, the oxygen therapy patient are urgently needed when the medical care personnel treat processing, only need facilitate presses the bed switch “the summon “, then the patient may obtain the effective medical treatment and nursing. Therefore, must establish the bed push-button switch nearby the hospital bed, in hospital ward establishment miniature launcher. Which bed patient for can judge “the summon” the signal is accurately sends out, must carry on the code to the bed switch. The coded signal (binary code) sends out through the launcher. Installs the signal receiver in the medical care personnel duty officers observation room, the received signal through the decoding driving circuit, causes the monitor to demonstrate patients bed number. At the same time, the receiver starts the sound electric circuit, causes the speaker to make the sound to inform the duty officers observation room medical care personnel. KeywordsKeywords：Encoder，Launcher，Receiver，Nixietube，Decoding driverII大学课程设计说明书目目 录录1前言.1 1.1设计背景.1 1.2设计目标.1 1.3实施计划.1 1.4必备条件.1 2总体方案设计.2 2.1方案比较.2 2.1.1编码电路方案比较.2 2.1.2声响部分电路方案比较.3 2.2方案论证.3 2.3方案选择.3 3单元模块设计.4 3.1各单元模块功能介绍及电路设计.4 3.1.1稳压电路模块设计.4 3.1.2TWH9236 集成电路模块设计.5 3.1.3TWH9238 集成电路模块设计.5 3.1.4NE555 音响电路.6 3.1.5系统电路设计.7 3.2电路参数的计算及元器件的选择.7 3.2.1电源电路.7 3.2.2稳压电路.8 3.2.3TWH9236/9238 集成接收电路.8 3.3特殊器件的介绍.8 3.3.1X 器件介绍.8 4系统调试.