摘要
为了使门球计分实现电子化,设计了一个以集成芯片74LS148、74LS194、74LS190为主要器件组成的门球记分系统,详细介绍了系统的工作原理和制作方法。该系统采用1片74LS148集成编码器和2片74LS194移位寄存器及5个发光二极管组成各队员独立得分显示电路,并选用了一片3×3输入与门4073集成电路组成参赛队总分信号的传输电路,又用1片74LS148编码器和2片74LS190计数器及2片74LS48译码器、2个共阴极数码管BS201组成了各参赛队总分的显示电路。集成电路外围元件少,工作可靠,制作容易,便于操作,成本较低。若对电路稍加改动,还可作为其他赛事的记分系统,因此该记分系统有较大的应用前景。
In order to electrify the gate-ball system, this paper presents a gate-ball scoring system which primarily consists of integrated chips 74LS148,74LS194 and 74LS190. It explicitly introduces the principle and the producing method. The team-member-score-display system consists of one piece of encoder 74LS148, two pieces of shift register 74LS194 and five light emitter diodes. The transmission circuit of the team＇s total score signal is composed of a piece of 3×3 input AND gate ＇chip 4073. The team＇s total-score-display circuit is composed of one piece of encoder 74LS148, two pieces of decimal counter 74LS190, two pieces of decoders 74LS48 and two pieces of glow discharge nixie tube BS201. The system has fewer external components,works reliably,makes and operates easily, and with low cost. The circuit can be modified easily to adapt to other scorecard system. So it has great applying prospect.
出处
《电子测量技术》
2008年第2期83-86,共4页
Electronic Measurement Technology
基金
河南省高等教育教改研究基金资助项目[2006](102号)
关键词
门球
记分系统
队员分数
全队总分
gate-ball
scoring system
team member score
entire team total score
