基于PLC的防“作弊”抢答器控制系统设计  

Design of the Control System of Anti-cheating Responder Based on PLC

作　　者：秦常贵[1] QIN Changgui(Guangdong Songshan Polytechnic College,Shaoguan 512126,China)

机构地区：[1]广东松山职业技术学院,广东韶关512126

出　　处：《电工技术》2020年第12期30-31,35,共3页Electric Engineering

摘　　要：应用PLC设计防“作弊”抢答器,在实现抢答、抢答成功组别指示与显示、答题时间设定与显示、自动/手动复位等抢答器应具有的基本功能外,其防“作弊”功能,能让参赛选手有意或无意提前按下抢答按钮,都抢答无效,并且不影响正常工作流程,使抢答过程更加公平、公正和顺利。The PLC was used to design the anti-cheating responder.In addition to the basic functions that should be provided by the responder,such as the indication and display of the successful group,the setting and display of the answer time,and the automatic/manual reset,its anti-cheating function could make the contestant press the answer button intentionally or unintentionally in advance,all of which were invalid and did not affect the normal working process,making the answer process more fair,just and smooth.

关 键 词：PLC 抢答器 防“作弊” 答题时间 倒计时 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]