多路无线语音抢答器设计.doc
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- 无线 语音 抢答 设计
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1、 本科生毕业论文(设计)多路无线语音抢答器院系名称姓名学号专业指导教师 年4月29日摘 要当今社会竞争日益激烈,知识竞赛等各项比赛、活动愈加频繁,因此抢答的应用与需求也越来越普遍,在生活中扮演的角色越来越重要。同时,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52系列单片机的数码显示无线抢答
2、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:无线抢答,定时抢答,无线发射和接收,PT2262/PT2272AbstractAt present, award winning, knowledge contests and other activities become more frequently, so the Application of Answer
3、and demand will become increasingly common.At the same time,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
4、 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 pr
5、oblems.The traditional vies to answer first vessels were wire wiring, the environment by influence. This paper introduces a kind of 52 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
6、 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 system will complete automatic countdown. If the stipulated time someone vies to answer first, the timing will automatically stop;
7、If the stipulated time no contest, the system will send the buzzer rang, indicating that the host this contest null and void, realize the alarm function.Key words: wireless Answer,timing answer,wireless transceiver,PT2262/PT2272 目 录1引 言12 系统方案设计22.1 系统的总体设计方案22.2 系统方案的选择22.2.1 无线模块22.2.2 微控制器模块42.2.
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