基于Multism/protel的数字抢答器

范文编号:JD035    字数:9531,页数:26

摘  要    数字抢答器由主体电路与扩展电路组成。优先编码电路、锁存器、译码电路将参赛队的输入信号在显示器上输出；用控制电路和主持人开关启动报警电路，以上两部分组成主体电路。通过定时电路和译码电路将秒脉冲产生的信号在显示器上输出实现计时功能，构成扩展电路。经过布线、焊接、调试等工作后数字抢答器成形。关键字： 抢答电路 定时电路 报警电路 时序控制 

             The figure vies for the answering device by the subject circuit and expands the circuit to make up . Have priority in code circuit , latch , decipher circuit and export the input signal of the entrant team on the display; Starting the warning circuit with the control circuit and host's switch, two the above-mentioned parts make up the subject circuit. Through timing circuit and decipher second signal function while outputs and realizes counting on the displaying that pulse produce circuit, form and expand the circuit. Through connect up , weld , debug figure vie for answering device take shape after the work.

Key word： Vie for answering the circuit ， Timing circuit  ，Warning circuit ，   Time sequence controlling

目录

第一章    绪论.................................................................. 3
第二章    方案论证与比较 ........................................................7
第三章   总体设计思路........................................................... 8
        （一）设计任务与要求.................................................... 8
        （二）设计原理与参考电路................................................ 8
第四章   多功能硬件与软件设计及其理论分析与计算................................ 12
        （一）抢答电路 .........................................................12
         (二)定时电路 ..........................................................12
        （三）报警电路 .........................................................13
        （四）时序控制电路..................................................... 18
        （五）整机电路设计 .....................................................19
第五章   实验仪器设备.......................................................... 21
第六章   实验内容及方法 ........................................................21
结束语 .........................................................................22
主要参考文献 ...................................................................25
谢辞  ......................................................................... 26

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