毕业论文大全

摘要
传统的抢答器都是导线布线，受现场环境影响很大。本文介绍的六路无线抢答器，是以8051单片机为核心制成的，其功能为连续可调的0到9秒的，抢答有效有高频铃声并显示组别，抢答无效有低频铃声也是显示组别，并且有计分功能，预置100分，答对为加10分，答错为减10分，由主持人手动复位，加减分，所以此抢答操作方便，在很多的场所都可以使用，并且给人的视觉效果非常好。
关键字：抢答器、智能抢答器、无线编解码、单片机。

Abstract
The tradition vies to answer first is the wire wiring, is been very big the scene environmental effect. This article introduced six groups vie to answer first wireless, is makes take 8051 monolithic integrated circuits as the core, its function for continuously adjustable 0 to 9 seconds, vies to answer first has the high frequency ting effectively and demonstrates the category, vies to answer first invalid has the low frequency ting also demonstrates the category, and has the scoring function, initializes 100 points, responds to add 10 points, answers wrong to reduce 10 points, by the director hand reset, adds and subtracts the minute, therefore this vies to answer the first ease of operation, may use in many places, and gives person's visual effect to be good.
key words   Vies to answer first, the intelligence to vie to answer first, arranges the decoding, the monolithic integrated circuit wireless.

目  录
摘要.............................................................. 2
Abstract.......................................................... 2
目  录 ............................................................3
任务书 ............................................................4
引言 ..............................................................5
第一章  8051单片机系统说明 ........................................6
1．1 8051单片机简介................................................6
1.2 时序 ..........................................................7
1.3引脚极其功能 ...................................................9
第二章  总体设计方案............................................. 13
2.1设计思路...................................................... 13
2.2总体设计框图 ..................................................13
2.3设计原理分析 ..................................................13
第三章主要元件介绍分析.......................................... 14
3.1  8051芯片 ....................................................14
3.2 74LS373...................................................... 14
3.3 数码管 .......................................................14
3.1扬声电路...................................................... 15
3.5计分电路 ......................................................15
第四章  程序设计 .................................................16
4.1定时整定 ......................................................16
4.2组别显示 ......................................................16
4.3加减分程序 ....................................................16
4.4消噪子程序.................................................... 16
4.5流程图 ........................................................17
4.6源程序清单.................................................... 17
总结与体会....................................................... 24
致谢 .............................................................25
参考文献..........................................................27
附录:总电路图.....................................................28

以上为本篇论文部分内容,其目录图片直接从论文中剪出,有需要完整论文的网友可参阅   论文共享要求也可直接通过QQ17304545联系.更多相关论文请点击部分论文目录 进入查看.