文档介绍：毕业设计[论文]
题目:智能型温度巡检仪
(软件部分)
系别: 电气与电子工程系
专业: 电气工程及其自动化
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摘要
在实际生产和生活等各个领域中,温度是环境因素不可或缺的一部分,对温度进行及时精确的控制和检测显得尤为重要。随着国民经济的发展,人们需要对各种加热炉,热处理炉,生化温室中温度进行监测。采用单片机来对他们控制不仅具有控制方便,简单和灵活性大等优点,而且可以大幅度提高被控温度的技术指标,从而能够大大的提高产品的质量和数量。
本文是基于智能温度巡检仪的硬件部分所做的软件程序,它与硬件部分相结合实现温度的实时测量与控制。硬件部分是以铂电阻PT100作为温度传感器,采用恒流测温的方法,通过单片机STC89C52进行控制,用放大器、A/D转换器进行温度信号的采集,再通过单片机把采集到的信号送到LCD1602中进行显示,通过按键调节温度上、下限。软件部分在此主要对硬件电路各部分功能的程序进行模块化,并对电阻——温度进行标度变换,对采集的温度数据滤波,实现温度的实时测量与控制。
关键词:单片机STC89C52, 温度传感器PT100,模数转换器ADC0809,液晶显示器1602
Abstract
Temperature is an essential of environmental factors in our actual production,living and many other fields. It’s particularly important to control and detect the temperature promptly and exactly. With the development of the national economy, people need to all in the furnace, heat treatment furnace, chemical and biological monitoring of the temperature of the greenhouse and control. Single-puter to control not only has control of their convenience, simplicity and flexibility advantages, but also substantial increase in temperature was charged with technical indicators, which can greatly improve the quality and quantity of products.
This is the software program based on the hardware part of the smart temperature data logging devices, with the hardware part of bination of real-time temperature measurement and control. The hardware part is based on the platinum resistance PT100 temperature sensor, the method of constant current temperature, by microcontroller STC89C52 control, amplifier, A/D converter temperature signal acquisition, collected by the microcontroller signal sent to the LCD1602 to be displayed on the button to adjust the temperature, the lower limit. The software part modular, the program for some of the features of the hardware circuit and the resistance - temperature scale conversion of the collected temperature data filtering, real-time temperature measurement and control.
Key words: STC89C52, temperature sensorPT1