声光显示智能竞赛抢答器毕业论文.doc

声光显示智能竞赛抢答器毕业论文

附C程序_附硬件电路图


目录

摘要 I
Abstract II
第一章 绪论 1
1.1 单片机抢答器的背景 1
1.2  单片机抢答器的意义 1
1.3 抢答器的应用 1
第二章 整体设计方案 2
2.1 单片机的选择 2
2.2 单片机的基本结构 2
2.3  单片机的存储器配置 5
2.4电阻器与电位器 7
2.5电容原件： 8
2.6二极管元器件 10
第三章硬件设计 10
3.1 单片机的最小系统 10
3.2 数码管译码显示电路 11
3.3音响电路 12
3.4 按键控制电路 12
3.4 硬件电路图 13
第四章 软件设计 14
4.1 抢答器流程图 14
4.2 主程序 16
第五章 系统的仿真 20
5.1 proteus软件的介绍及使用 20
5.2 抢答器proteus软件的仿真 23
第六章 调试功能说明 23
6.1 系统的调试 23
6.2 软件调试问题及解决 23
6.3  焊接的问题及解决 24
第七章 结束语 26
7.1　结论 26
7．2展望 26
参考文献 28
致谢 29

摘要
随着计算机技术的高速发展，单片机以其自身的特点，已广泛应用于智能仪器、工业控制、家用电器、电子玩具等各个领域。在知识竞赛中，特别是做抢答题目的时候，靠视觉是很难判断出哪组先抢答成功。利用单片机系统设计的抢答器，可使问题得以解决，即使两组的抢答时间相差几微秒，也可分辨出哪组优先答题。
本次设计的4路抢答器主要是采用ATMEL公司的AT89S51单片机作为核心，实现控制4个独立式键盘抢答按钮，单位静态数码显示，手动复位等功能。控制系统的五个模块分别为：单片机最小系统、显示模块、抢答开关模块和音频输出模块，抢答组数可以在四组以内任意使用。通过本设计后，可以很快的判断出是谁最快抢答成功，并且马上进入答题倒计时，比赛即将结束时，能发出报警声，同时在显示模块上显示出倒计时时间的提示。

关键词：单片机；键盘；显示；抢答

Title   Sound and light show quiz Responder
Abstract
With the rapid development of computer technology, SCM with its own characteristics has been widely used in intelligent instruments, industrial control, household appliances, electronic toys and other fields. Competition in knowledge, especially when answering Device, by which the visual is very difficult to determine the successful group the first answer. Using MCU system design Responder, the problem can be solved, even if the time difference between the two groups answer in a few microseconds, can tell which group first answer.
The 8-way system design is the use of devices Answer Atmel Corporation AT89S52 single-chip microcomputer as the core, to achieve control of eight stand-alone keyboard answers in the button, the four dynamic digital displays, and manual reset functions. The control systems of the five modules are as follows: the smallest single-chip system, display module, display driver module, answer switch module, and the audio output module, answer a few groups can be less than the arbitrary use of eight groups. Through this design, you can quickly determine who is the fastest answer in success, and immediately enter the answer countdown; And who answer in too early, an alarm sound and displays the group number fouls; game about the end of the alarm can be issued the same time, the display module shows time countdown tips.

Keywords: SCM；Keyboard；Display；Answer