PLC在多组抢答系统的应用(附cad接线图,梯形图)

PLC在多组抢答系统的应用(附cad接线图,梯形图)(含任务书,外文翻译,毕业论文13700字,cad图纸4张合一)
摘 要
随着电子技术的发展，PLC在社会生活中应用越来越广泛。鉴于此，结合社会生活，为了方便学校和各级组织知识竞赛，设计了一个智力抢答器。在借鉴别人成果的基础之上，又设计了一段惩罚程序，应用经验设计法，使程序看上去更加简洁、易懂。惩罚程序的加入使竞赛更加具有竞争意味，体现竞赛的宗旨。数字显示和检测灯双重显现，确保抢答组的显现的准确无误。数字显示是利用两个七段数码管和BCD指令实现的，应用数字显示和分组灯同时显示抢答组数可以防止在数码管损坏或分组灯有一个损坏的情况下准确显示抢答组。
抢答器的程序是用GX-Developer软件的指令完成，将各个输入/输出端子和实际控制系统中的按扭、所需控制设备正确连接，完成硬件的安装。正常工作时程序存放在存储卡中，若要修改程序，先将PLC设定在STOP状态下，运行GX-Developer编程软件，打开抢答器程序，即可在线调试，也可用编程器进行调试。此次下载安装了GX-simulator三菱编程模拟仿真软件，对程序进行了虚拟调试。并进行了拼写检查，程序能够实现预定的效果。

关键词：智力竞赛，数字显示，抢答器 

 
THE APPLICATION OF PLC IN MULTIPLE ANSWER SYSTEM

ABSTRACT
With the development of electronic technology, the applications of PLC in the social life are more and more widely. Combining with social life, I design a mental Responder for the schools and organizations at all levels to facilitate knowledge competition. Learning from others in the basis of the results, I design a punishment procedure by using the method of experience design and make the program looks more concise. You can understand it easily. Punishment procedure was added, means that races is more competitive, reflecting the purpose of competition. Dual digital display and test lights are to ensure the accuracy of the answer in group show. Two seven-segment digital displays are the use of digital control and BCD instructions implementation, and application of digital display and grouping a few lights at the same time display answering group can prevent damage to in groups in the digital tube lights have a case of damage accurately display answering group. [来源：http://Doc163.com]
I use the instructions of GX-Developer to complete the producer. With each input/output terminals and the actual control system of the button connected. You complete the correct installation. During normal working procedures, if stored in memory, the first revision procedures set in the PLC operation condition, Stop      GX-Developer  programming software, open contest, online testing program, usable also programmer debugging. Then download and install the simulator GX - simulation software ladder program, and makes a spell checking, the program can achieve the expected results.

KEY WORDS: Quiz, statistics, Responder

1. 总体设置
设有主持人总台和各个参赛分组，总台设有重加违例分组按钮、开始按钮、计时开始按钮、数码显示、违例复位按钮、蜂鸣器。各个分组有分组灯和抢答按钮，各组必须在主持人按下抢答按钮并且分组显示灯亮时，方可抢答。若有个别组在主持人未按下开始按钮时，按下了抢答按钮，系统发出违例报警：违例分组和主持台上相应的灯以1s为周期闪烁，同时蜂鸣器1s蜂鸣声。

[来源：http://Doc163.com]

2. 惩罚措施
主持人按下复位按钮后方可复位，正常进入下一轮的抢答，若一组在此次竞赛中先后违例三次，那么系统会自动取消其下一题的抢答资格，等惩罚时间一过主持人按下违例复位按钮后，该组方可正常答题。
3. 正常操作
主持人按下开始按钮后数码显示时间：若在10s内无人抢答则系统自动断电，所有灯灭，主持人按下开始按钮方可进行下一题的抢答。若在10s内有人抢答，则数码管自动切换到该组，并显示出该组，与此同时抢答成功组和主持台上该组灯显示亮，未抢答成功则该组和主持台上的对应该组的灯不亮。
4. 计时开始
等有组成功抢答之后，主持人按下计时按钮，同时蜂鸣器响1s提示该组开始回答问题，同时数码显示30s时间，等30s时间到系统自动断电，所有灯灭，蜂鸣器响时1s答题结束。