温湿度采集系统,单片机;串行通信;数据交换 第2页
论文 摘 要
随着计算机技术的飞速发展和普及，数据采集系统也迅速地得到应用。温湿度数据采集系统的主要功能是把模拟信号变成数字信号，并进行分析、处理、存储和显示。本设计要求在Windows环境下实现PC机与单片机之间的串口通信，以PC机作为上位机，单片机作为下位机。考虑到C#编程语言具有面向对象的设计方法，友好的用户界面等优点，通过串口RS232进行串口通信把温度、湿度、露点数据传送给PC机，显示在用C#语言开发的一个可以显示温湿度数据的界面上,再进行相关的数据处理。本设计在此基础上还设计了系统的总体方案，最后通过硬件和软件实现了各个功能模块。相关部分附有程序流程图,程序代码。
经实验证明本系统的稳定性良好，测量误差在允许的范围之内，能够满足实验对数据采集和记录的要求和相应的精度要求。
关键词:单片机;串行通信;数据交换;
With the rapidly development of computer technology and penetration, the data acquisition system are also rapidly applied. Temperature and humidity data acquisition system’s main function is translate analog signals into digital signals,and then to analysis, processing,storage and display.The design’s requirements beyond the Windows environment is to achieve communication between PC and the serialport. Consider PC as a microcontroller, SCM as the next machine.
Taking into account the C # programming language has object-oriented
design and friendly user interface, and other advantages .Through a serial RS232 implement serial communication and transmit the temperature, humidity, dew
point to the PC and show the temperature and humidity data on the interface which is develop with the C # language, and then begain the data processing . The design not only design the overall program, but also has the ability to achieve the various functional modules between the hardware and software that are basis on function of the system. There are some revelant charts and procedures code to show.
The experiment has proved that the stability of the system is well, and measurement accuracy is also in the allowable scope, able to meet the experimental data acquisition and recording of the request and the corresponding accuracy.
Key Words:Singlechip;Serial Communication;Data Exchange;
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