基于单片机的防火防盗报警系统设计 (1).doc

PAGE PAGE 18 PAGE PAGE 6 毕业论文 基于单片机的防火防盗报警系统设计 目 录 TOC \o 1-3 \h \u HYPERLINK \l _Toc418499934 摘 要 PAGEREF _Toc418499934 \h 7 HYPERLINK \l _Toc418499935 Abstract PAGEREF _Toc418499935 \h 8 HYPERLINK \l _Toc418499936 1 绪论 PAGEREF _Toc418499936 \h 9 HYPERLINK \l _Toc418499937 1.1 课题背景 PAGEREF _Toc418499937 \h 9 HYPERLINK \l _Toc418499938 1.2 设计概述 PAGEREF _Toc418499938 \h 9 HYPERLINK \l _Toc418499939 1.3 烟雾报警器的国内外现状 PAGEREF _Toc418499939 \h 10 HYPERLINK \l _Toc418499940 1.4 烟雾报警器的发展趋势 PAGEREF _Toc418499940 \h 11 HYPERLINK \l _Toc418499941 1.5 设计任务分析 PAGEREF _Toc418499941 \h 11 HYPERLINK \l _Toc418499942 2 总体方案设计 PAGEREF _Toc418499942 \h 11 HYPERLINK \l _Toc418499943 2.1 烟雾检测传感器选型 PAGEREF _Toc418499943 \h 12 HYPERLINK \l _Toc418499944 2.2.1 烟雾传感器的介绍 PAGEREF _Toc418499944 \h 13 HYPERLINK \l _Toc418499945 2.2.2 MQ-2半导体气体烟雾传感器 PAGEREF _Toc418499945 \h 13 HYPERLINK \l _Toc418499946 2.2 单片机选型 PAGEREF _Toc418499946 \h 14 HYPERLINK \l _Toc418499947 2.2.1 STC89C52单片机简介 PAGEREF _Toc418499947 \h 15 HYPERLINK \l _Toc418499948 2.2.2 单片机的引脚功能描述 PAGEREF _Toc418499948 \h 15 HYPERLINK \l _Toc418499949 2.1.3 温度采集模块 PAGEREF _Toc418499949 \h 17 HYPERLINK \l _Toc418499950 2.3 红外感应部分 PAGEREF _Toc418499950 \h 17 HYPERLINK \l _Toc418499951 2.3.1 电源模块 PAGEREF _Toc418499951 \h 17 HYPERLINK \l _Toc418499952 2.3.2 信号采集处理模块 PAGEREF _Toc418499952 \h 18 HYPERLINK \l _Toc418499953 3 系统的硬件电路 PAGEREF _Toc418499953 \h 18 HYPERLINK \l _Toc418499954 3.1 单片机最小系统 PAGEREF _Toc418499954 \h 18 HYPERLINK \l _Toc418499955 3.2 单片机的时钟电路与复位电路设计 PAGEREF _Toc418499955 \h 19 HYPERLINK \l _Toc418499956 3.3 烟雾检测AD采集电路 PAGEREF _Toc418499956 \h 20 HYPERLINK \l _Toc418499957 3.4 显示模块 PAGEREF _Toc418499957 \h 21 HYPERLINK \l _Toc418499958 3.5 声音报警电路 PAGEREF _Toc418499958 \h 21 HYPERLINK \l _Toc418499959 3.6 按键控制电路 PAGEREF _Toc418499959 \h 22 HYPERLINK \l _Toc418499960 3.7 电源模块 PAGEREF _Toc418499960 \h 22 HYPERLINK \l _Toc418499961 3.8 温