摘要
无线抢答记分系统以AT89S52/51单片机为控制核心,主持人电路可实现有效抢答信号的无线译码接收与识别显示、抢答倒计时、答题倒计时、提示报警等功能,选手电路可实现抢答信号的编码与无线发送、分数数据的无线译码接收显示,主持人和选手之间通信采用UM3758-108A编译码器和红外发送接收模块配合实现。
The wireless rush-answer and score keeping system uses AT89S52/51 Single-chip Microcomputer as core controller. The compere circuit has the function of receiving and recognizing the wireless decoding of rush-answer signals, rush-answer counting down, answering counting down and warning. The competitor circuit has the function of coding and wireless transmission of the rush-answer signals, receiving and displaying the wireless decoding of score. The communication between the compere and the competitors is realized by the combination of UM3758-108A coder and infrared transmission and receiver module.
出处
《电子设计工程》
2012年第12期106-108,111,共4页
Electronic Design Engineering
关键词
无线通信
单片机
抢答器
制作
wireless communication
single-chip microcomputer
rush-answer and score keeping system
making
