基于以太网的远程温度测量系统的研究

基于以太网的远程温度测量系统的研究

文档编号:DQ340 文档字数:11024,页数:43

摘要
本文设计了一个基于以太网的远程温度测量系统。温度测量采用ds18b20和at89c51单片机，用四位数码管显示测量出来的温度。软件部分采用c语言编写，包括18b20的初始化程序，读温度程序，显示温度程序，和串口数据发送程序。在这部分的调试中，先在proteus中进行了仿真调试。结果是如果在18b20中设定一个温度值，然后运行，在数码管上会显示出18b20中设定的温度值，这说明软硬件设计基本正确。然后按照电路图在万用板上将实物连接起来。用单片机仿真器进行仿真，仿真器用的是wave6000/s，仿真软件用也是用伟福的。运行程序后，在数码管上显示出室温。用手接触18b20，数码管温度上升，说明温度测量部分设计正确。网络数据传输用的是zen-300t（以太网转串口模块），就是把测温模块串口连接到zen-300t上面，然后把zen-300t模块接入以太网。用户通过访问模块的ip地址就可以知道测温模块所测量出来的温度。从而实现了远程温度测量的目的。

关键词：温度测量以太网 ds18b20 zen-300t

Abstract
The paper design a system that can measurement the temperature of Remote areas.
Temperature measurement using ds18b20 and at89c51 Single-chip, with four digital display of measured temperature.software use c language, including 18b20 nitializa
-tion procedures, read the temperature program, showing the temperature procedures, and serial data distribution procedures. In this part of the debugger, the first simulation in proteus debug. The result is set 18b20 temperature, and then run, in the digital tube 18b20 shows the temperature set value, indicating the correct basic hardware and software design. Then in accordance with the circuit board will be used in the illion-kind in the Universal plate. Emulator MCU simulation, simulation is used in wave6000/s, simulation software is used by the wei-fu. After running the program, in the digital display of room temperature control. Hand contact 18b20, digital temperature rise, that part of the design of the correct temperature measurement. Network data transfer using the zen-300t (serial to Ethernet module), that is, the temperature measurement module serial port to connect to the zen-300t above, and then the zen-300t Ethernet access module. Users access module ip address module to know the temperature of the temperature measured. In order to achieve the purpose of remote temperature measurement.

Keywords：Ethernet temperature measurement ds18b20 zen-300T

目录
1 前言…………………………………………………………………………………………...1
2 总体设计方案……………………………………………………………………………....2
2.1 系统总体结构…………………………………………………………………….……2
2.2 系统硬件结构……………………………………………………………………....... .3
2.3 系统总体软件流程……………………………………………………………….……4
3 基于AT89c51与DS18b20的温度测量……………………………………….…….5
3.1 DS18820介绍……………………………………………………………………..…..5
  3.1.1 DS18B20主要特性与内部结构………………………………………………5
  3.1.2 DS18B20硬件连接方式与工作过程………………………………………….6
  3.2 AT89c51简单介绍…………………………………………………………………….7
3.3 AT89c51与DS18b20组成的温度测量系统……………………………………… ...9
  3.3.1 系统硬件…………………………………………………………………..… ..9
  3.3.2 系统软件………………………………………………………………………10
  3.3.3 proteus与单片机仿真器仿真…………………………………………………11
4 ZNE-300T以太网转串口模块………………………………………………………..13
4.1 zne-300t介绍…………………………………………………………………………13
  4.1.1 zne-300t产品概述…………………………………………………………....13
  4.1.2 zne-300t 产品规范 …………………………………………………………..14
       4.2   zne-300t ip地址………………………………………………………15
  4.2.1 设备ip出产设置……………………………………………………………...15
  4.2.2 用户获取ip…………………………………………………………………....16
  4.2.3 pc机与模块网段检测…………………………………………………………16
  4.3 zne-300t模块的硬件连接……………………………………………….………17
5 单片机ZNE-300Tpc机之间的通讯…………………………………………………20
5.1 通讯的硬件原理框图……………………………………………………………..…20
5.2 zne模块与单片机间的通讯…………………………………………………………..21
5.3 计算机与zne模块的通讯…………………………………………….………..……22
6 系统的调试……………………………………………………………….……………....23
6.1 温度测量数码管显示部分的调试………………………………….…………….…23
6.2 模块与pc机通讯的调试……………………………………………………………23
6.3 系统调试………………………………………………………………….……….…23
6.4 系统的改进方向………………………………………………………….……….…23
7 总结…………………………………………………………………………….……….….24
致谢…………………………………………………………………………………..…….…25

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