单片机无线抢答器设计 毕业论文.doc

江苏农牧科技职业学院 毕业设计（论文）说明书 作 者： 学 号： 50 班 级： 机电1101班 专 业： 机电一体化 题 目： 单片机无线抢答器设计 指导者： （姓名） （专业技术职务） 评阅者： （姓名） （专业技术职务） 江苏农牧科技职业学院制 二O一四 年 五 月二十三 日 毕业设计（论文）中文摘要 摘 要 智力竞赛是一种生动活泼、寓教于乐的活动形式，而抢答是智力竞赛中非常常见的一种答题方式。在进行智力竞赛时，往往都是几个组抢答问题，这就要求在时间上严格的区分先后。若是仅凭主持人的主观判断，则很容易造成错判、误判。为此，我们需要设计一种具备自动锁存、置位、清零等功能的智能抢答器来解决这些问题。 传统的抢答器都是导线布线，受现场环境影响很大。本文介绍了一种用51系列单片机的数码显示无线四路抢答器的电路组成、设计思路及功能。该抢答器除具有基本的抢答功能外，还具有计时和报警功能。主持人通过时间预设开关计算抢答时间。系统将完成自动倒计时。若在规定的时间内有人抢答，则计时将自动停止；若在规定的时间内无人抢答，则系统中的蜂鸣器将发响，提示主持人本轮抢答无效，实现报警功能。 关键词 智力竞赛 智能抢答器 51系列单片机 报警功能 毕业设计（论文）外文摘要 Title：The design of a single chip wireless vies to answer first A bstract It is a lively competition, fun activities in the form of, and vies to answer first is very common in the quiz answer a way. In intelligence contest, often are several group vies to answer first problem, it is required in time in the strict distinction between successively. If only with the host of the subjective judgment, it is very easy to create the falsely accused, misjudgment. For this, we need to design a kind of have to be automatic lock to save, buy a, reset function of intelligent vies to answer first device to solve these problems. The traditional vies to answer first vessels were wire wiring, the environment by influence. This paper introduces a kind of 51 series microcontroller with the digital display wireless road 4 is composed of the circuit, vies to answer first design idea and function. This is in addition to the basic vies to answer first vies to answer first function outside, still have time and alarm function. By the time the switch calculation vies to answer first time. The syst