毕业设计（论文）单片机 (上料机)论文模版.doc

摘 要 在实际生产中，为了提高生产效率，改进生产工艺，自动上料系统应用越来越广泛。目前大型的生产加工企业使用的是基于PC+PLC的控制方式，该方式价格昂贵、控制系统复杂，能够统计管理确保数据的备份、查询、统计、打印等功能该系统的工作原理AT89S51单片机设计一款真空上料机控制器，要求该控制器能够进行上料放料整个工作流程的控制。其工作参数包括上料时间（5-60秒），放料时间（5-60秒）。其中，上放料时间参数可以用过面板上的轻触按键进行输入，并保存于EEPROM中，功率驱动方式选择场效应管控制，从而构成了真空自动上料、放料的功能。 【关键词】 单片机 看门狗 硬件设计 Abstract In actual production, in order to improve production efficiency, improve production technology, automatic feeding system is widely applied. The current large-scale production and processing enterprises are using PC + PLC based control mode, the method is expensive and complex control system, can statistical management to ensure data backup, query, statistics, printing. For small-scale processing enterprises, and production automation less demanding situations, we must consider the cost savings but also human resources, based on these two aspects of this issue to consider, research and development of a vacuum-based SCM Automatic loading control system. ? We use SCM, the completion of a complete feed control, discharge control; full automatic detection of material through the human interface to the self-loading, discharge time and other functions, small-scale processing enterprises can completely meet the automatic feeding, discharge function. The vacuum on the feeder control system works: AT89S51 Microcontroller based Design of a vacuum on the feeder controller, requiring the controller to carry out the material discharge control of the entire workflow. Its operating parameters, including loading time (5-60 seconds), discharge time (5-60 seconds). Among them, the discharge time parameters can be used on the touch panel buttons for input, and stored in EEPROM, power driver FET control mode choice. Thus constituting a vacuum automatic feeding, discharge of functions. Key words: MCU; Hardware design; Watchdog 目 录 第一章 绪 论 1 1.1 题目来源及课题意义 1 1.2 自动上料机控制系统的工作原理及技术要求 1 1.3 系统的预期功能 2 第二章 总体方案设计 3 2.1 上料机控制方案 3 2.2 系统结构框图 4 2.3