（毕业设计论文）超声波自动上灯系统研究.doc

超声波自动上灯系统研究 PAGE 30 江 西 理 工 大 学 校 区 毕 业 设 计（论文） 题 目：超声波自动上灯系统研究 系 ：信息工程系 专 业：应用电子技术 班 级：08应用电子 学 生： 学 号指导教师： 职称：讲师 超声波自动上灯系统研究 摘 要 随着社会不断的发展，尤其是在电子产品迅速发展的今天，利用超声波自动控制灯光，不但消除了晚上摸黑找不到开关的缺点，用在公共场合还可以最大限度的节约电能。更加有优势的是，超声波感应不用人发出任何动静，人只要进入系统的检测范围内，系统就会接通电路，也不用担心还没离开灯就灭了，这是声控灯光无法比拟的。 本课题首先分析了超声波自动上灯系统的工作原理与组成，对系统各部件进行分析和参数说明，搭建了硬件平台。其次，对系统进行了一系列的实验验证。再次，以不同的物体靠近系统进行感应，通过超声波感应实现了电路的自动感应控制，以不同的工作亮度环境，通过光敏电阻的感应实现了白天黑夜的感应控制。在晚上或亮度不够的白天，系统就会开启，然后根据检测到的信号进行相应的控制。 关键词：自动控制；超声波感应；电容延时；节能系统 作者：谭必靖 指导教师：罗勇老师 AUTOMATIC ULTRASONIC SYSTEM OF LIGHTS ABSTRACT As society continues to develop,especially in the rapid development of electronic products today. The use of ultrasonic automatic to control lighting, not only can eliminate the shortcomings that you cannot find switch at the dark night, but also can maximize conservation of energy in public. More advantage is that ultrasonic sensors neednt people give any voice, and if people enter the systems detection range, the system will be connected to the circuit. You do not worry about the lights go out when people havent leave, which is voice-activated lights can not match. First of all, this paper analyzes the work principle that use ultrasonic to automatic control lighting and system’s composition, and analysis of system components and parameters, and then build the hardware platform. Secondly, the system carried out a series of experiments. Once again, use different objects to near the sensor system, and use the ultrasonic sensor to automatic sensor control circuit. Then in the work environment of different brightness, system use photosensitive resistance to induction day and night to achieve the control. At night or during the day without enough brightness, the system will open automatically, then according to the detected the signals to control it. Keywords: Automatic control；ultrasonic sensors；Capacitance delay；Energy Saving Sy