數(shù)顯式門球記分系統(tǒng)的設計

摘  要：設計了一個以集成芯片74LS148、74LS194、74LS190為主要器件組成的門球記分系統(tǒng)，詳細介紹了系統(tǒng)的設計方案、工作原理。該系統(tǒng)采用一片74LS148集成編碼器和兩片74LS194移位寄存器及五個發(fā)光二極管組成各隊員獨立得分顯示電路，并選用了一片3×3輸入與門4073集成電路組成參賽隊總分信號的傳輸電路，又用一片74LS148編碼器和兩片74LS190計數(shù)器及兩片74LS48譯碼器、兩個共陰極數(shù)碼管BS201組成了一個參賽隊總分的顯示電路。工作可靠、便于操作、成本低，有較大的應用前景。

關鍵詞：門球；記分系統(tǒng)；隊員分數(shù)；全隊總分

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    錄
摘要……………………………………………………………………………………………1
1 引言…………………………………………………………………………………………3
2 系統(tǒng)原理……………………………………………………………………………………3
2.1 系統(tǒng)的界面顯示…………………………………………………………………………3
2.2 系統(tǒng)電路示意圖及工作原理……………………………………………………………4
2.3 各隊員獨立得分顯示電路及工作原理…………………………………………………5
2.4 各隊總分的顯示電路及工作原理………………………………………………………7
3 結論…………………………………………………………………………………………9
參考文獻………………………………………………………………………………………10