摘要
在对抢答器的现状进行调查的基础上,对智能抢答器的功能进行了研究。设计了一种基于Multisim10的智能抢答器。给出了总体框图。主要利用优先编码器74LS148、锁存器74LS279及译码器实现抢答功能。利用秒脉冲产生电路为选手们抢答倒计时。通过数码管来显示优先抢答选手的号码。在Multisim10中对总体电路进行了仿真,仿真功能正确。具有设计思路简单、功能齐全、易于实现和成本低廉等优点。
Based on the investigation of current situation of the responder, the function of the intelligent responder were studied. The intellect re- sponder is designed based on Multisiml0. The o- verall block diagram is given. The function of re- sponder is realized by using Priority encoder 74LS148.Latch 74LS279 and decoder. The count- down for the players is realized by using the second pulse generation circuit. The number of the players who first answer is displaied in LED. The overall circuit is simulated by Multisiml0, the simulation is correct. This design is simple and easy to achieve with Low cost and Complete function.
出处
《机械与电子》
2012年第11期78-80,共3页
Machinery & Electronics
基金
陕西省教育厅项目(11JK0847)
宝鸡文理学院项目(YK1027
YK1030)
作者简介
刘小群（1977-），女，陕西兴平人，讲师，硕士研究生，研究方向为电子信息工程；
周云波（1965-），女，浙江宁波人，高级实验师。研究方向为电子信息技术。
