周谊大学本科(设计)设计.docVIP

毕业（设计）论文 题 目 单片机双汉字16X16 LED点阵广告屏设计 姓 名 周 谊 学 号 0925112136 专 业 09 机 电 专 一 指导教师 熊才高 职 称 高级工程师 2012 年6 月1日  摘 要 随着超高亮度LED（特别是白光LED）的出现，在照明领域的应用成为可能。据国际权威机构预测，二十一世纪将进入以LED为代表的新型照明光源时代，被称为第四代新光源由于LED光源具有发光效率高、耗电量少、使用寿命长、安全可靠性强，有利于环保等特性，近几年来在城市灯光环境中得到了广泛的应用。目前已应用于数码幻彩、护栏照明、广场照明、庭院照明、投光照明、水下照明系列。许多城市利用LED光源照明技术应用于城市灯光环境建设中，产生了良好的效果，积累了丰富的经验。With the brightness leds (especially white LED), the appearance of lighting applications of possible. According to international authoritative organization predicted, the 21st century will enter the LED lighting source as a representative of the new era, called the fourth new light. Because of LED lights have less power consumption, high luminous efficiency, long service life, high reliability and safety for environmental features, in recent years in urban lighting environment has been widely applied. Currently has been applied in digital colorful, guardrail lighting, lighting, garden lighting, lighting, underwater lighting series. Many cities using LED light-source lighting technology applied in urban lighting environment construction, good effect, has accumulated rich experience SCM since the 1970s, with extremely high since the advent of performance to price attention and concern, so it is widely used and fast development. SCM is characteristic of small volume, light weight, high integration, strong anti-jamming capability, high requirement of environment, low price, high reliability, flexibility is good, develop relatively easy. Because there are so many advantages of MCU, therefore its application range, almost to the water. It is based on single-chip microprocessor control LED technology. Can believe, semiconductor technology will not be replaced, and other technical products will continue along the original track forward development. Keywords：LEDsemiconductor MCU new light 目 录 摘 要 I Abstract II 目 录 III 引 言 1 第1节 LED基本知识 2 1．1 LED点阵显示屏概