无线表决器系统设计与实践论文.doc

摘 要
本课题主要是设计并实现一个无线表决器系统，常用于民主表决。该系统以24L01无线通信模块作为主要通讯设备，采用的核心芯片为STC89C52，实现一对多的信息通讯，利用无线模块传输数据信息，并进行统计整理通过液晶显示屏显示出来，通过程序设定投票规则，分析票数统计情况，得到最终投票信息。并通过应答以达到上位机与各投票点之间的相互通信，从而组建一个基于24L01无线通信的投票系统。本设计采用同一数据通道传输不同点的数据，简化了程序而且拓宽了应用空间，同时对操作设定了声音报警系统，对于错误操作会发出警报提醒。
经过原理设计，制作PCB电路板，硬件各模块调试，软件设计和调试，最终完成了该表决系统。系统在单个传输和多个同时传输中均可正常使用，并对每个投票机设置了不同地址，有效防止了同一次表决中重复投票的情况，可应用于各种投票表决场合。
关键字：无线传输；STC89C52；NRF24L01；显示；报警
Abstract
This topic mainly designing and implementing a wireless voter system, used to vote democratic. With 24 l01 wireless communication module for the system as the main communications equipment, the core chip for the STC
89C52, for information of one-to-many communications, to transmit data using wireless module information, statistics and sorting through the LCD screen display, voting rules set by the program, the vote count analysis, get the final vote. And reply in order to achieve mutual communication between upper machine and various polling stations, so as to form a voting system based on 24 l01 wireless communication. This design uses the same data channel transmission difference data, simplifying the program and widen the application space, set up a sound alarm system to operate at the same time, the wrong operation will sound an alarm to remind.
Through the principle of design, production of PCB circuit board, the debugging of hardware module, software design and debugging, finally completed the voting system. In single and multiple transmission and transmission system can be normal use, and vote for each machine set a different address, effectively prevent the repeat voted on at the same time, can be applied to all kinds of vote on occasion.
Key words Wireless transmission; STC89C52; NRF24L01; Display; Alarm
目 录
摘 要 I
Abstract II
第1章 绪论 1
课题的背景及意义 1
国内外研究现状 1
国内外研究现状 1
分析 2
课题研究内容 2
本章小结 2
第2章 硬件电路的原理与设计 3
系统分析 3
系统各模块分析 3
系统原理图