文档介绍：基于单片机的无线多路温度数据采集系统设计
摘要
本课题设计的是一套无线多路温度数据采集系统,主要用于对环境温度的采集与监控。系统采用基于无线网络的设计思想和温度采集技术。无线传输避免了远距离布线所带来的施工困难,成本高的缺点。本设计用AT89C51单片机为主要硬件,设计了包括温度采集,温度显示,系统控制,串口通信等外围电路。单片机AT89C51作为主单片机完成测量和控制以及与通信单片机的数据通信、无线收发控制等功能。无线温度数据采集系统是利用下位机设置温度上下限和实时温度的采集,并将结果传输到上位机,以达到对温度的比较、控制。
关键词: AT89C51 温度采集温度传感器DS18B20 RS-232 MAX813 无线收发模块PTR2000
Abstract
This paper introduces a kind of wireless monitoring system which is used to control temperature condition. The system adopts work and temperature collect technique. The munication can avoid the ing of remote wire transmission, such as large wastage, high cost etc. This design uses AT89C51,The monolithic integrated circuit is the main hardware, In order to realize design goal this design including temperature gathering, the temperature demonstrated that, the systems control, strung together periphery electric circuit and so on mouth main MCU (AT89C51) takes charge of measurement,control munication with munication MCU. munication MCU (AT89C51) is used to control receiving and sending data in the munication. The system wireless temperature control system is uses in the lower position machine establishment temperature the lower limit, with real-time temperature gathering, transmits to on position machine,by achieves to the parison, the control.
Key words: AT89C51 Temperature gathering DS18B20 RS-232 MAX813 PTR2000 munication
目录
第一章绪论.................................................................4
第二章方案论证 5
第三章系统总体设计 7
7
8
第四章各个元器件及芯片简介 10
AT89C51单片机介绍 10
DS18B20温度传感器简介 12
PTR2000模块介绍 13
MAX813芯片介绍 14
MAX7219芯片介绍 15
1602液晶显示屏介绍 16
第五章各部分电路设计 17
看门狗电路 17
温度采集电路 18
串口电路 18
显示电路 19
键盘电路 20
第六章系统总体软件设计...........................................21
系统工作流程................................................. 21
系统的软件设计..............................................21
软件设计流程图...................................................... 22