地面灰度识别应用研究.doc

江 西 理 工 大 学 毕 业 设 计（论文） 题 目：地面灰度识别研究 系 ：信息工程系 专 业：电气自动化 班 级：08电气自动化2 学 生：李家良 学 号 指导教师：凌 云 职称：讲师摘 要 随着现代科技的发展地面灰度识别应用越用越广，比如商品条形码的识别，机器人的路径识别等等……灰度是指黑白图像中点的颜色深度，范围一般从0到255，白色为255 ，黑色为0，故黑白图片也称灰度图像，在医学、图像识别领域有很广泛的用途灰度也可认为是亮度，简单的说就是色彩的深浅程度。实际上在我们的日常生活中，通过三原色色彩深浅的组合，可以组成各种不同的颜色。Abstract With the development of modern technology more ground with gray-scale application of the more widely recognized, such as product barcodes, identifying the path of the robot and so on ... ... gray is the color of the midpoint of the depth of black and white images, ranging generally from 0 to 255,?255 white, black is 0, so the black and white picture, also known as grayscale images in medicine, the field of image recognition has a wide range of uses.?Light gray can also be considered, simply means that the degree of color depth.?In fact in our daily life, through a combination of RGB color depth can be composed of a variety of colors, and different colors has a corresponding gray value. Reflection of different colors, different levels of light, so the sensor can detect. Identification of gray through the sensor, the sensor have a good variety, such as photosensitive resistance sensors, infrared sensors, and so, here photoresistor sensors.?Different gray level has a corresponding voltage value, the photosensitive surface resistance measured by the color (gray) is different, they produce different voltages.?Be the voltage through the analog-digital conversion, and through the microcontroller in the display to the corresponding gray value can be drawn to determine the appropriate color, it completed the identification of gray.? KEY WORDS：Gray value, photosensitive resistor, microcontroller, ADC0809, LCM1602.?目 录 摘 要 I Abstract II 第一章 绪论 1 1.1课题研究的背景及意义 1 1.2传感器的发展历史 1 1.3传感器发展的未来前景 2 第二章 设计思路 3 2.1灰度值 3 2.2设计思路 3 2.3预期的结果 4 第三章 硬件 5 3.1光电器件 5 3.2光敏电阻 5 3.2.1光敏电阻的结构与工作原理 5 3.2.2光敏电阻的主要参数 5 3.2.3光敏电阻的基本特性 6 3.3发光二极管 6 3.3