基于单片机自动无线抄表系统的设计.doc

摘 要 长期以来，水电供应部门对用户电表、水表、煤气计量都来用传统的手工抄表方式，该方法费时、费力，缺乏准确性和及时性，不利于供应部门进行更深层次的分析和管理决策，在行业信息化过程之中，户表数据的自动化抄送具有非常重大的意义。 本设计从硬件、软件两大角度对无线抄表系统进行全面设计。其中，硬件设计包括：单片机最小系统、数据显示模块、数据采集模块、信号发射模块和串行通信等部件的设计。软件设计包括主程序、显示程序、脉冲计数器子程序、键盘程序、串行通信子程序这五大模块。通过硬件电路和软件设计协调工作完成了系统所要求的所有功能。硬件电路采用CC400单片集成无线收发芯片和89C51单片机为核心，配以适当的外围电路，手持机具有键盘和LED显示功能，并可通过串口将抄得数据传给计算机。软件设计采用汇编语言对整个系统进行编程。 本系统适用于电、气、热表的无线抄收。通过构建自动抄表系统，使电力公司和物业管理部门大大提高了工作效率和经济效益，而且从根本上解决了入户抄表收费给用户和抄表人员带来的麻烦，同时也避免了不必要的纠纷。 关键词：单片机；CC400；LED Abstract Abstract: It has been a long time that support department adopted traditional method to read the data from ammeter, waterandmeter, this way costs a lot of time and force, lack veracity and punctuality. It isnt convenient to analyse and vider. with more and more deparments rely on information technology today, It is very important to read data from meter by automatic means. The design of hardware, software, two wireless meter reading system in terms of overall design. Among them, the hardware design include: the smallest single-chip systems, data display module, data acquisition module, signal transmission, such as serial communication module and the design of components. Software design, including the main program, display program, pulse counter subroutine, keyboard procedures, serial communication subroutine these five modules. Through the hardware circuit and software design of the system to coordinate the completion of all the features required. CC400 hardware single-chip integrated circuit chip wireless transceiver and 89C51 single-chip microcomputer as the core, with appropriate external circuitry, handset with a keyboard and LED display, and through the serial data will be copied to the computer. Software design using assembly language programming to the entire system. The system applies to electricity, gas, wireless Collecting heat. Through the construction of automatic meter reading systems to power companies and property management sector greatly enhanced the efficiency and c