声光控开关的设计毕业论文.doc

PAGE PAGE 摘 要 本文以LGS公司生产的GMS97C2051单片机为核心，研究声光控开关的设计，采用串行A/D对声音信号的采集，可以通过软件来调节对声音的灵敏度。单片机软件实施对光度的判断，使开关在白天时即使有声音也不工作。文章应用了过零启动技术，开关工作在频繁的开关状态时不易损坏可控硅，延长了声控开关的使用寿命。文章中还加入了看门狗电路，在工作过程中可以起到抗干扰的作用，大大加强了开关的可靠性。 关键词：GMS97C2051；单片机；声控开关；看门狗 Abstract In this paper, produced by LGS single-chip microcomputer as the core GMS97C2051 to study the acousto-optic switch-controlled design, the use of serial A / D acquisition of the voice signal through the software to adjust the sound sensitivity. Single-chip implementation of the software to determine the luminosity, so that when the switch during the day does not work even if there is sound. Application of the zero article, start technology, switching frequency of switches in easily damaged when the SCR, to extend the life of a voice-activated switch. The article also joined the watchdog circuit, in the course of their work can play the role of anti-jamming, greatly enhance the reliability of the switch. Keywords：GMS97C2051, SCM singlechip,voice operated switch,Watchdog 目录 第1章 绪 论 1 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc232990139 第2章 方案论证 PAGEREF _Toc232990139 \h 2 HYPERLINK \l _Toc232990140 2.1 单元电路设计 PAGEREF _Toc232990140 \h 3 HYPERLINK \l _Toc232990141 2.1.1 声音信号采集电路 PAGEREF _Toc232990141 \h 3 HYPERLINK \l _Toc232990142 2.1.2 光信号判断电路 PAGEREF _Toc232990142 \h 4 HYPERLINK \l _Toc232990143 2.1.3 过零启动保护电路 PAGEREF _Toc232990143 \h 5 HYPERLINK \l _Toc232990144 2.1.4 定时电路 PAGEREF _Toc232990144 \h 6 HYPERLINK \l _Toc232990145 2.1.5 驱动输出电路 PAGEREF _Toc232990145 \h 7 HYPERLINK \l _Toc232990146 2.2 电源设计 PAGEREF _Toc232990146 \h 7 HYPERLINK \l _Toc232990147 2.2.1 看门狗电路 PAGEREF _Toc232990147 \h 8 HYPERLINK \l _Toc232990148 2.2.2 总体电路设计 PAGEREF _Toc232990148 \h 9 HYPERLINK \l _Toc232990149 第3章 制作工艺流程 PAGEREF _Toc232990149 \h 11 HYPERLINK \l _Toc232990150 3.1 元器件选择和检测 PAGEREF _Toc232990150 \h 11 HYPERLINK \l _Toc232990151 3.1.1 重要元器件选择 PAGEREF _Toc232990151 \h 11 HYPERLINK \l _Toc232990152 3.1.2 元器件的检测 PAGE