文档介绍：信息工程学院
课程设计报告书
题目 : 基于 Multisim 的声光控路灯控制系统设计与仿真
学减排和节能科学发展的号
召而设计了声光控路灯控制系统。
本系统利用自制直流稳压电源供电， 根据光敏电阻的阻值变化判断光线强弱， 用咪头测
声音信号， LM324 对信号进行放大和构成比较电路。由 74LS08D 的与门，实现对信号的筛
选， 从而对开关部分发出开启或关闭的信号。 继电器控制驱动灯泡，由 RC 充放电路进
行延时。 通过对外界信号的选择， 声光控路灯实现自动控制灯亮。 仅当光线较暗并且有声响时，路灯才会自动点亮， 并延时 20 秒左右熄灭。 此系统能很好的控制路灯的亮灭，即在有声音和无光情况下灯亮，其他情况下灯灭，从而达到节能的效果。
声光控路灯控制器可以自动实现人来灯亮， 人走灯灭， 既方便又实用。 不仅节约了电能，
而且能延长灯泡的使用寿命。 可广泛应用于楼梯， 走廊，卫生间及生活小区等公共场所的照明控制。词控制器经济实用，即使一般的脚步声也能使灯泡发光照明。
关键字 ：声光控制； LM324； 继电器； 延时
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Abstract
Now, in public places and public corridor, light long time measured by the phenomenon is very common, which caused a great waste of energy to the society. On the other hand, due to frequent switching or man-made factors, the damage to the wall switch rate is very high, increasing the amount of repair, waste of funds. Sound and light control of street lamp is not the problem. In view of the present society many places use pilot lamp lighting, can not realize intelligent lighting lighting caused a huge waste of energy. In response to the science and energy-saving emission reduction of scientific development to design the sound and light control
of street lamp control system.
Homemade DC stabilized voltage power supply by using this system, according to the photosensitive resistor change to determine the light intensity, measured voice signal by microphone, LM324 for signal amplification and comparison circuit. By 74LS08D and gate, screening of signal, which sends a signal to open or close to the switch part. Relay control driver bulb, for delay by the RC charging and discharging circuit. To the outside world through the selection of signal, sound and light control of street lamp realizes the automatic control of light.
Only when the light