基于单片机的病床呼叫系统设计样本

基于单片机病床呼喊系统设计

摘要

病房呼喊系统是传送临床信息重要手段,可将病人祈求迅速传送给值班医生或护士,它重要用于协助医院病员在病床上以便地呼喊医务人员，是提高医院和病室护理水平必备设备之一。让患者需要服务时，只要按一下随身携带呼喊器，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告知医生状况.它规定及时、精确、可靠、简便可行。

本设计呼喊系统由按键检测，数据解决，信息显示三某些构成。由C51单片机作为重要控制器，运用液晶显示屏作为显示某些，使用3X8矩阵开关分别模仿医院病房与病床位数。病人按下按键时，C51及时获取病人病房号和病床号，同步采集此时时间并一起显示在液晶显示屏上，当护士看到显示屏上病人信息，并按下清零键后，液晶显示屏恢复到初始状态。本系统对键盘检测采用中断方式，可以提高系统及时性和高效性。当同步有数个病床呼喊时，本系统还可以循环呼喊记录显示。

核心词：病房呼喊单片机中断液晶显示

Design of hospital bed call system based on singl e chip microcomputer

Summary

Ward call system is an important means to transfer the clinical information，the patient's request can be quickly transmitted to the d octor or nurse on duty，it is mainly used to assist the hospital easily call the medical staff in a hospital bed，is one of the necessary equipment to improve the l evel of nursing and hospital ward. Let the patient need service，just click the thecarry pager information can spread to the workers. Immediately without caregivers when patients need ed services cannot tell the d octor. It requires timely，accurate and reliabl e，simple and feasibl e.

The d esign of the call system by the key d etection，data processing，information display three parts. C51 microcontroll er as the main controll er，the use of liquid crystal display as the display part，the use of 3X8 matrix switch to simulate the hospital ward and hospital beds. When the press button is pressed，the C51 immediately gets the patient's ward number and the bed number，whil e the time is coll ected and displayed on the LCD monitor，when the nurse sees the patient's information and press the reset button，the LCD screen is returned to its initial state. This system can improve the immediate and efficiency of the system by using the interrupt mod e. When there are a number of hospital beds call，the system can also be a circular call records show.

Key words：ward call，SCM，interrupt，liquid crystal display

目录

前言 ...................................................................................................................................................... 第1章绪论. (2)

1.1课题概述 (2)

1.2智能病床呼喊系统发展概况 (2)

1.3课题研究目和意义 (3)

1.4 设计任务 (3)

1.5 任务规定分析 (3)

第2章系统设计和方案选取 (5)

2.1 设计思路............................................................................................... 错误!未定义书签。

2.2 键盘采集方案选取 (5)

2.3设计芯片选取 (6)

第3章系统硬件电路设计 (7)

3.1单片机控制系统硬件设计 (7)

3.2液晶显示硬件设计 (7)

3.3扫描键盘硬件设计 (8)

3.4时钟芯片硬件设计 (9)

3.4中断电路设计 (10)

第4章系统软件设计 (10)

4.1主程序设计 (10)

4.2矩阵键盘中断程序设计 (12)

4.3液晶LCD12864驱动程序设计 (14)

4.4实时时钟DS1302驱动程序设计 (15)