关于plc在自动售报机的应用毕业论文设计

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1、 1 关于关于 plc 在自动售报机的应用毕业论文设计在自动售报机的应用毕业论文设计 专业班级专业班级 学学 号号 12 12 指导教师指导教师 成成 绩绩 2009 年 12 月 2 关于关于 plc 在自动售报机的应用毕业论文设计在自动售报机的应用毕业论文设计 内容摘要：本文介绍了一套基于单片机控制步进电机的自动售报机系统。系统主要是由两 部分组成：前台售报和后台管理，可以使自动售报机的功能更加完善，操作更加便利。从自 动售报机的发展趋势来看，它的出现是由于劳动密集型的产业构造向技术密集型社会转变的 产物。大量生产、大量消费以及消费模式和销售环境的变化，要求出现新的流通渠道，加上 场地的局

2、限性以及购物的便利性等这些因素的制约，自动售报机作为一种必须的机器便应运 而生了。本文不仅从自动售报机的外观上给出了详细的介绍，而且详细阐述了自动售报机的 各个部件的功能。从各个角度对当前我国的自动售报机的情况进行了分析，了解了自动售报 机的工作流程，分析硬件和软件的结构。 关键词：单片机 纸币识别器 PLC GSM Vending newspaper machineVending newspaper machine designdesign Abstract:Abstract:This article has introduced a set of stepping motor based

3、on single chip 3 microcomputer control of the newspaper vending machine system. System is mainly composed of two parts: the front desk to sell newspaper and background management, can make the newspaper vending machine function to be more perfect, operation more convenient. From the newspaper vendin

4、g machine development trend, it is the emergence of the labor-intensive industry structure due to technology intensive social change of the product. Mass production, large amount of consumption and consumption patterns and sales the change of environment, request new distribution channels, and the l

5、imitation of the site and the convenience of shopping, these factors, the newspaper vending machine as a must machine will emerge as The Times require. This paper not only from the newspaper vending machine on the exterior of the given detailed introduction, and expounds the the newspaper vending ma

6、chine components of a function. From the Angle of the current our country to the newspaper vending machine on the analysis, understand the newspaper vending machine work process, and analyzes the structure of hardware and software. Keywords:Keywords: Single-chip microcomputer Notes identifier Programmable Logic Controller Global System for Mobile Communications 目 录 引言.5 1 自动售报机介绍5 4 1.1 自动售报机功能介绍5 1.1.1 自动售