【毕业论文设计】基于单片机的防盗报警系统的设计与实现.doc

本科毕业设计 题 目：基于单片机的防盗报警系统 的设计与实现 学生姓名：　 　　 专业名称：　 指导教师：　　 　　 　 2011年　5月　20日 目 录 一、设计正文………………………………………………………(1) 二、附录……………………………………………………………(28) 1. 设计任务书…………………………………………………… (28) 2. 设计中期检查报告…………………………………………… (30) 3. 指导教师指导记录表………………………………………… (31) 4. 设计结题报告………………………………………………… (32) 5. 成绩评定及答辩评议………………………………………… (34) 6. 设计答辩过程记录…………………………………………… (36) 基于单片机的防盗报警系统的设计与实现 摘要：随着时代的不断进步，人们对环境的安全性提出更高的要求，很多小区都安装了智能报警系统，大大提高了小区的安全程度，有效的保证居民的人身财产安全。目前国内使用的各类防盗、保安报警器基本都是以超声波、主动式红外发射/接收以及微波等技术为基础。本文采用单片机为核心的多功能报警器，并以此为核心设计了报警器的硬件系统和软件系统，实现了系统的智能化控制，红外接收首先将接收到的红外光转换为电信号，并进行放大和解调出用于无线发射电路调制信号。当无人遮挡红外光时，锁相环输出低电平，报警处于监控状态；一旦有人闯入便遮挡住了红外光，则锁相环失锁，输出高电平，驱动继电器接通无线发射电路，监控室便可接收到无线报警信号，单片机检测到报警信号经预设的处理程序。程序确认后发出报警声音，还可以根据需要设置拍摄、自动拨报警电话等个性化服务。 关键词：8051单片机；红外线传感器；报警器 Based on SCM anti-theft newspaper P system design and implementation Abstract: as the era of progress, people to the environment safety put forward higher requirement, many village installed intelligent alarm system, greatly improving the community safety degree, effective guarantee residents. Person property safety At present domestic use of all kinds of security, security alarm basic are based on ultrasonic, active infrared emission/receiving and microwave technology as the foundation. This paper adopts singlechip is muti_function alarm, and thus the core design the alarm of hardware and software system, realized the system of intelligent control, infrared receiving first will receive signals, and convert infrared light amplification reconciliation v modulated signal for wireless transmitting circuit. When no one block infrared, and phase lock loop output low level, alarm in monitoring state; Once a break-in and covering the infrared phase lock loop, then lost locks, output high-level, drive relay through wireless transmitting circuit, monitoring room will receive to wireless alarm signal, microcontroller detected by default alarm signal processing program. Pro