基于单片机的竞赛抢答器系统设计详解.doc

毕业设计说明书 基于单片机的竞赛抢答器系统设计 专业 自动化 学生姓名 班级 B自动化 学号 091060 指导教师 完成日期  毕业设计说明书（毕业论文） 独创性声明 本人声明所呈交的毕业设计说明书(毕业论文)是本人在导师指导下进行的研究、设计工作后独立完成的。除了文中特别加以标注和致谢的地方外，说明书中不包含其他人己经发表或撰写过的研究成果。对本文的研究所做贡献集体和个人，均己在说明书中作了明确的说明并表示谢意。本人完全意识到本声明的法律后果由本人承担。 毕业设计说明书（毕业论文）作者签名(手写): 日期: 年 月 日 指导教师签名(手写): 日期: 年 月 日 基于单片机的竞赛抢答器系统设计 摘 要：在现在的抢答比赛中需要高效准确的确定第一抢答者，那么一个功能完善的抢答器可以准确公正直观的确定第一抢答者，所以对于基于单片机的系统设计’s game first responder responder needs to determine the accurate and efficient, so a perfect function of the responder can determine the first answer accurately and fairly intuitive, so for the competition responder system design based on single chip microcomputer research has important significance. This design need to understand the digital electronic technology, analog electronic technology, at the same time need to be knowledgeable of SCM theory. Goal is to realize the eight-way responder design competition. This design USES a buzzer alarm, digital tube display, buttons, input, using 51 series single-chip microcomputer by software programming for data processing, so as to realize eight-way responder design. Hardware circuit is mainly carries on the modular design, the hardware circuit connection into a whole. Software design is to use assembly language programming. Software mainly by MCU assembly program for data processing. Buzzer judgement is to use single chip microcomputer for processing, so as to put an end to cheating in the man-made. The basic function design of the system can realize the buzzer, alarm and count down function. This design in small physical volume, at the same time, the cost is low, it is very convenient to maintain the system, with strong practicality, judgment accuracy, simple operation, strong function. Cheap price, because of the small game is at present more easier to transfer the responder has the larger market. Key Words: Eight–way responder; AT89C51; Alarm; Time 目 录 1 概 述 1 1.1 选题背景及意义 1 1.2 抢答器功能介绍 1 2 系统硬件设计 3