下载后可任意编辑目 录摘要·································································· 1引言··································································· 11设计任务与要求 ················································· 22 基础知识介绍··························································· 22
1热释电红外传感器简单介绍············································· 32
2 PIR的原理特性······················································ 32
3 AT89C51单片机简单概述·············································· 33 方案设计··································· 0下载后可任意编辑·························· 43
1总体设计思路 ······················································· 43
2具体电路模块设计 ···················································· 53
1 热释电红外传感器原理 ··············································· 53
3 系统硬件电路的选择及说明·····························
