基于单片机和计算机的多媒体抢答器设计  

Design of the Rush-answer Machine Based on MCU and PC

作　　者：乔瑞芳[1] 

机构地区：[1]吉林大学珠海学院电子信息科学与技术系,广东珠海519041

出　　处：《电子科技》2009年第8期43-46,51,共5页Electronic Science and Technology

摘　　要：文中以AT89C51单片机为控制核心,设计了用计算机进行竞赛过程控制及显示的多媒体抢答器。为了增强该装置的实用性,使用了Delphi和Access小型数据库,用户可以在计算机上根据需要修改题库。文中详细介绍了该装置的硬件设计方法、串口通信协议、单片机及计算机的软件流程。该设计克服了常规抢答器的缺点,实现了竞赛答题的智能化管理,具有较好的人机交互界面。该系统经过运行测试,工作稳定可靠,有较强的实用性。The design is a multimedia rush-answer machine whose control core is MCU AT89C51 and it computer controls the competition process and the display. The design uses the Delphi and Access database to enhance the practicality of the device, and the user can modify the question database on the computer. This paper clearly introduces the hardware design, the serial port communication protocol, and the program flow of the micro computer and the computer. The design has overcome the weakness of the conventional rush-answer machine, realizes the intellectualized management of competition and has a good human-computer interface. The test result indicates that this system is reliable and practicable.

关 键 词：抢答器 AT89C51 计算机 数据库 

分 类 号：TP302.1[自动化与计算机技术—计算机系统结构]