一维条形码的生成与识别.doc

本科生毕业设计 题 目 一维条形码的生成与识别 学 院 专业班级 学生姓名 指导教师 撰写日期： 年 月 日  一维条形码生成与识别 摘要 条形码（简称条码）技术是如今应用最广泛的识别和输入技术之一，由于其包含的信息量大，识别错误率低而在各个方面得到很大的重视。它发展迅速并被广泛应用于于工业、商业、图书出版、医疗卫生等各行各业。条码技术是集条码理论、光电技术、计算机技术、通信技术、条码印制技术于一体的一种自动识别技术。条形码是由宽度不同、反射率不同的条（黑色）和空（白色），按照一定的编码规则编制而成，用以表达一组数字或字母符号信息的图形标识符。条形码符号也可印成其它颜色，但两种颜色对光必须有不同的反射率，保证有足够的对比度。条码技术具有速度快、准确率高、可靠性强、寿命长、成本低廉等特点，因而广泛应用于商品流通、工业生产、图书管理、仓储标证管理、信息服务等领域。由我国目前发展现状来看，条码的正常使用受到条形码印刷质量和商品运输过程的影响，并且传统的条码识读方式是采用光电识读器，条码图像对光的不同反射效果也必然会对条码的识读产生影响，而一般条码在搬运过程中条码会不可避免的破损，所以对质量较差的条码的识别尤为重要。 关键词：自动识别；编码规则；可靠性；应用广泛 A one-dimensional bar code generation and recognition Abstract Nowadays Bar Code (the code) is a very popular technique ofidentification and input. It has been taken serious because of it’s large information and low error rate. It develops very quickly and has already been applied in industry,commerce,publishing,medical sanitation and so on. the code technology is an automatic identification technology set code theory, photoelectric technology, computer technology, communication technology, bar code printing technology. Bar code is different from the width, the reflectivity of different articles (black) and blank (white), and according to a certain coding rules for identifiers, graphic expression of a set of numbers or letters used to symbolic information. Bar code symbol can also be printed in color, but the two colors have different reflectivity on the light must, ensure adequate contrast. Bar code technology has the advantages of fast speed, high accuracy, high reliability, long life, low cost, and is widely used in the circulation of commodities, industrial production, library management, warehousing label card management, information service.It can be seen from the actualities in our country that the use of Bar-Code is influenced by the pr