数显式门球记分系统的设计.doc

数显式门球记分系统的设计

摘  要：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，详细介绍了系统的设计方案、工作原理。该系统采用一片74LS148集成编码器和两片74LS194移位寄存器及五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，又用一片74LS148编码器和两片74LS190计数器及两片74LS48译码器、两个共阴极数码管BS201组成了一个参赛队总分的显示电路。工作可靠、便于操作、成本低，有较大的应用前景。

关键词：门球；记分系统；队员分数；全队总分

The Design of Digital Display Gateball Scoring System
Abstract: This article designs a gateball scoring system which primarily consists of integrated chips 74LS148, 74LS194 and 74LS190. It explicitly introduces the design project and the principle. The team-member-score-display system consists of one piece of encoder 74LS148, two pieces of shift register 74LS194 and five light emitter diode. The transmission circuit of the team’s total score signal is composed of a piece of the 3×3 input AND gate 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 works reliably, operates easily, and it has low cost and great application prospect.
Key words: gateball; scoring system; team member score; entire team total score

目    录
摘要……………………………………………………………………………………………1
1 引言…………………………………………………………………………………………3
2 系统原理……………………………………………………………………………………3
2.1 系统的界面显示…………………………………………………………………………3
2.2 系统电路示意图及工作原理……………………………………………………………4
2.3 各队员独立得分显示电路及工作原理…………………………………………………5
2.4 各队总分的显示电路及工作原理………………………………………………………7
3 结论…………………………………………………………………………………………9
参考文献………………………………………………………………………………………10