基于智能短跑计时器的设计.doc

南京信息职业技术学院 毕业设计论文 作者 学号 系部 电子信息学院 专业 计算机控制技术 题目 基于智能短跑计时器的设计 指导教师 评阅教师 完成时间： 2010年 5 月 1 日 毕业设计(论文)中文摘要 题目： 基于智能短跑计时器的设计 摘要：近年来，我国体育事业蓬勃发展。随着全民健身运动的开展，在体育测试中传统的手工计时往往难以满足比要求，裁判要求较高，人为性大，投入多，精度低，对大量数据的保存查阅困难。在短跑项目中在短跑项目中采用电子计时的方法具有公正、准确、快捷高效等特征是体育信息化的重要设备。In recent years, Chinas sports to flourish. With the launching of the National Fitness Campaign, in sports the traditional manual testing time is often difficult to meet the Bi requirements, referees are higher, and people of the great and input, low precision and large amounts of data stored on the access difficulties. With the constant development of electronic information industry in all walks of life in the SCM is widely used, microcontroller technology continues to mature technology to enable automatic time Sprint application in reality. Used in the Sprint with electronic timing methods impartial, accurate, fast and efficient other features. Smart sprint timer is the sports information of the important equipment.It implements automatic time track and field sprint race and intelligence, track and field sprint race over the years to solve the difficult problem of artificial time, so timing is more simple, more convenient, more accurate and more efficient. In this paper, 89S51 microcontroller design using smart sprint timer hardware design and software design, details of the timer system of monitoring equipment hardware design and use of interrupts, interrupt expansion and timer function of timer software technology, and Smart Dash timer use and precautions. keywords: microcontroller interrupt timer hardware design 目录 1 绪论 1 1.1 课题背景 1 1.2 设计简介 2 2 系统设计方案 3 2.1 系统设计方案的提出 3 2.1.1方案一 3 2.1.2方案二 4 2.1.3方案三 5 2.2 方案的确定 5 3 系统硬件设计 6 3.1 主电路设计 7 3.2 控制台电路设计 7 3.3 信号装置设计 8 3.4监测装置设计 10 3.4.1 监测装置激光发射器 10 3.4.