液体温度监控系统

论文编号:ZD936    论文字数:14564,页数:32

摘  要
   现如今，温度控制已成为各个领域中的一项关键技术，在航空、化工、冶金、医药、等领域里，对温度的控制效果直接影响到许多产品的质量及使用寿命，因此，研究高性能的温度控制设备具有非常重要意义。测温和控温两个方面是温度控制的关键所在，温度测量是温度控制的基础，温度控制是温度测量的延伸。相对于技术己经比较成熟的温度测量方面来说，温度控制方面还存在着诸多问题，由于越来越复杂的控制对象的出现，人们不得不不断寻找更好的控制方法以提高控制技术，满足日新月异的控制要求。
  而温度监控系统中又以温度传感器和单片机为核心。故为了提高对传感器和单片机的认识和了解，本次毕业设计主要结合使用单片机和传感器等技术而设计了本系统。本设计主要任务是完成环境温度检测，同时计算机实施温度监控并利用单片机实现温度调节。本设计主要是作为温度调节鱼缸的应用，稍作修改，可应用于其他温度监控系统。本文对本设计系统主要包括的温度传感器，单片机，升降温控制，数据传输，计算机和继电器驱动电路六个部分的功能、实现过程作了详细介绍。系统的主要功能是实现温度监控，完成了毕业设计的要求。

关键词： 传感器，单片机，温度监控

Abstract
 Today, the temperature control has become a key technology in various areas. In some areas such as in aviation, chemical, metallurgy, medicine, and other areas, temperature control results directly affect the quality and life of many products, therefore, the temperature control of high-performance’s device has a very important significance. Both temperature and temperature control is the key to temperature control; temperature measurement is the basis for temperature control, temperature control room temperature measurement of the extension. Compared to more mature in terms of temperature measurement, temperature control, there are still many problems, as more complex control object appears, the people have to constantly look for better control methods to improve the control technology to meet the ever-changing control requirements.  Temperature control system turned around temperature sensor and microcontroller core. Therefore, in order to improve awareness and understanding the sensor and the microcontroller this graduation design combined with the microcontroller and sensor technology to design of the system. The main task is to complete the design temperature detection, temperature monitoring at the same time and use computer-implemented single chip temperature controller. The design of the main tank as the application of temperature control, make some modifications, it can be applied to other temperature monitoring system. In this paper, the design system includes a temperature sensor, microcontroller, heating and cooling control, data transmission, computer and relay drive circuit of six parts. Implementation process and capabilities are described in detail. Main function is to achieve temperature control, so it can complete the graduation requirements.
Keywords： Sensor ，Microcontroller ，Temperature Monitoring

 目 录
使用授权书……………………………………………………………………. . . …… … …….I
摘   要……………………………………………………………………………… … ….. …..Ⅱ
Abstract……………………………………………………………………………… … ….. …Ⅲ
目   录……………………………………………………………………………… ……… … Ⅳ
1  引言………………………………………………………………………………… ……….. 1
 1.1 课题的背景、意义……………………………………………………………... ......... ..1              
 1.2 本课题在国内外的研究概况 ………………………………………………… ……. ...2         
    1.3 本课题研究内容……………………………………………………………… ……….. 3
2  方案论证………………………………………………………………………… ………. .. 4
 2.1  温度监控系统技术指标………………………………………………… ……………4
 2.2  温度监控系统原理功能…………………………………………………… …………4 
 2.3  温度监控系统总体构想…………………………………………………… …………4
       2.3.1 温度传感器的选择……………………………………………… …………..5
       2.3.2 微处理器单片机的选择………………………………………… …………..9
       2.3.3 测温方案的选择 ……………………………………………………… .. …17
3   温度监控系统硬件设计……………………………………………………… …... …...18
   3.1  温度监控系统组成框图………………………………………………… …………18
      3.2  温度监控系统结构图…………………………………………………… …………19
      3.3  温度监控系统硬件配置…………………………………………………… …….. .20
4    温度监控系统软件设计………………………….. ………… ….. ………… ….. ….. 24
 4.1  单片机温度控制系统软件结构……………………………… …..….. … ….. …. .24
 4.2  单片机控制流程图………………………………………………………… ... .... . .25
   4.3  温度变换程序模块……………………………………………………… …………26
   4.4  温度非线性转换程序模块……………………………………………… …………26
5    设计总结……………………………………………………………………… …………27
6    谢  辞……………………………………………………………………… ……………28
7    参考文献……………………………………………………………………… …………29