8路智能搶答器畢業(yè)設(shè)計(jì)


摘  要

隨著電子技術(shù)的飛速發(fā)展，基于單片機(jī)的控制系統(tǒng)已廣泛運(yùn)用于各個(gè)行業(yè)。在智能化的今天，單片機(jī)系統(tǒng)已經(jīng)代替了傳統(tǒng)的控制系統(tǒng)的常規(guī)電子路線。
電子只能搶答器在搶答過程中，為了知道哪一組或哪一位選手先答題，必須要設(shè)計(jì)一個(gè)系統(tǒng)來完成這個(gè)任務(wù)。本系統(tǒng)采用AT89S51單片機(jī)作為核心。控制系統(tǒng)的四個(gè)模塊分別為：單片機(jī)最小系統(tǒng)、顯示模塊、顯示驅(qū)動(dòng)模塊、搶答開關(guān)模塊。

關(guān)鍵詞：單片機(jī)；顯示；驅(qū)動(dòng)；搶答

Abstract

Along with the rapid development of electronic technology, based on single-chip microcomputer control system has been widely used in various industries. The intelligent today, SCM system has replaced the traditional control system of conventional electronic route.
Electronic only in vies to answer first process vies to answer first, in order to know what a group or a player to answer, must design a system to complete this task. This system USES AT89S51 as the core. Control system of four modules: SCM system, display module, the smallest display driver module, vies to answer first switch module.

Keywords: SCM, Display, Drive, Vies to answer first

目    錄
引言   ………………………………………………………………………………………1
1.系統(tǒng)設(shè)計(jì)點(diǎn) ……………………………………………………………………………1
2.搶答器的硬件設(shè)計(jì)……………………………………………………………………1
2.1設(shè)計(jì)思路…………………………………………………………………………………1
2.2硬件設(shè)計(jì)…………………………………………………………………………………3
2.3單片機(jī)芯片的選擇………………………………………………………………………3
2.3模塊性能分析……………………………………………………………………………5
2.4獨(dú)立式鍵盤………………………………………………………………………………5
2.5 LED數(shù)碼管顯示…………………………………………………………………………5
2.6最小系統(tǒng)圖………………………………………………………………………………6
2.7時(shí)序控制電路……………………………………………………………………………7
2.8第一有效搶答信號的處理………………………………………………………………7
2.9倒計(jì)時(shí)的處理……………………………………………………………………………7
3搶答器軟件設(shè)計(jì)…………………………………………………………………………8
總結(jié)…………………………………………………………………………………………9
謝辭…………………………………………………………………………………………10
參考文獻(xiàn)……………………………………………………………………………………11
附錄…………………………………………………………………………………………12
主程序………………………………………………………………………………………14