宠物定时喂食器设计方案.docx

宠物定时喂食器设计目录1引言11.1研究背景11.2功能概述11.3社会意义12系统方案设计22.1总体设计方案构思22.2系统组成模块设计22.2.1单片机芯片的选择22.2.2时钟显示电路32.2.3时钟芯片的选择32.2.4温度传感器的选择43系统硬件设计53.1 AT89S52单片机简介53.2 单片机模块设计83.2.1单片机主控系统83.2.2单片机的复位电路93.2.3时钟电路103.3主要模块功能103.3.1液晶显示模块LC3.2按键模块123.3.3蜂鸣器模块133.3.4照明灯133.3.5 DS1302133.3.6 DS18B20温度测试模块153.3.7电机控阀门163.4电源电路设计183.4.1电源电路原理183.4.2电源电路模块设计思路184系统软件设计204.1主程序流程图204.1.1主流程概述204.1.2设计思想214.2程序设计软件概述214.3软件调试225系统调试235.1硬件调试方法235.2硬件调试技巧235.3调试遇到问题24结论25参考文献26致谢27附录1 电路原理图28附录2 主程序29附录3 实物图44摘 要本文设计的是宠物定时喂食器，即先将宠物饲料放入其中，通过设定喂食时间点，当到达这一时间点后，系统发出喂食信号吸引宠物，自动进行喂食。本设计主要研究如何设定时间点并发出喂食信号。宠物自动喂食器主要包括单片机AT89S52、电源电路、电机控阀门、按键电路、显示模块、照明灯、DS1302电路模块、DS18B20温度测试模块和蜂鸣器模块。其中单片机为核心单元，对各个模块的工作进行控制。喂食器的喂食过程是，通过键盘设定倒计时间，当依次到达设定时间时，单片机驱动发光二极管发光，蜂鸣器发出响声，吸引宠物过来进食并自动投放食物。设计中加入的万年历和温度传感器，方便记录宠物的生长周期。倒计时和日期等信息通过LCD12864液晶显示。本设计解决了工作日或节假日由于主人不在不能对宠物喂食和宠物饮食不规律的问题，系统操作简单，电路运行稳定，具有一定的推广价值。关键词：宠物喂食器；AT89S52单片机；LCD12864液晶；万年历ABSTRACTThe study is a design on pet timing feeding device, that is, pet feed into it first,by setting feeding point in time, when arrives at this point, the system signal attracts pet and automatically feeding.This design is mainly to study how to set time and signal feeding. Pet timing feeding device includemicrocontroller AT89S52, Power circuit,the key circuit, LCD12864 display module, DS1302 clock circuit, DS18B20 temperature testing moduleand music alert system.The microcontroller is the core unit, to control various modules work. Feeder feeding process is through the keyboard to set the time, when arrivesthe point, microcontroller drive light-emitting diodes led, buzzer sound, attract pet feeding and automatically feeding.Design with calendar and temperature sensorrecord pet growth cycle conveniently. Countdown system time is displayed through the LCD12864.This design solves the problem thatkeeping pet healthy when people work or not at home on the holidays. The system is operated easily and the circuit is stability. It has a certain popularization value.Key Words：P