基于STM的多路数字式温度采集系统.docVIP

湖北民族学院 毕业论文（设计） 多路数字式温度系统 学生姓名： 学 号： 031041226 系 别： 电气工程系 专 业： 电子信息科学与技术 指导教师： 孙玲姣 评阅教师： 论文答辩日期 答辩委员会主席 摘 要 关键词：，DS18B20，温度 Abstract This design is to a micro controller, temperature sensor, buttons and TFT screen for the framework of digital temperature measuring system.STM32F103ZE chips as the main controller is adopted, through the single bus temperature sensor DS18B20 temperature acquisition, temperature information through STM32F103ZE micro controller shown in TFTLCD module after processing, in order to realize the multi-point temperature monitoring. This design uses the altogether four DS18B20, that is to say, this system can sampling temperature of four locations at the same time.With temperature sensor temperature after you come back, all the temperature display on the LCD panel.On the display function, using the line chart shows that make the show more intuitive, more powerful.The function of the system, of course, other also have display, such as alarm temperature will real-time display, through the peripheral buttons to adjust the limit temperature.This design will also be part of a display related functional keys on TFTLCD, reduce the peripheral circuit, also increased the human-computer interaction, make the system more humane, intelligent.The design of the function is all ready, at the top surface temperature detection. Keywords: microcontroller,TFTLCD,DS18B20, the temperature measurement 目 录 摘 要 I Abstract II 1 绪言 1.1 课题背景 1 1.2 国内外概况 1 1.3 课题研究的目的和意义 2 1.4 课题的主要研究工作 3 2 系统设计方案的研究 2.1 方案选择 4 2.2 系统总体方案设计 7 2.3 系统功能介绍 8 3 硬件电路设计 3.1 硬件元件介绍 9 3.1.1 STM32F103ZE 介绍 9 3.1.2 DS18B20介绍 12 3.1.3 TFTLCD介绍 15 3.1.4 FSMC介绍 17 3.2 硬件电路详细设计 18 3.2.1 温度采集模块设计 18 3.2.2 显示模块设计 19 3.2.3 按键模块设计 20 3.2.4 报警模块设计 20 3.2.5 系统总体电路图 22 4 软件设计 4.1 主程序流程图 23 4.2 温度采集处理子程序 24 4.3 显示子程序介绍 24 4.4 按键子程序介绍 25 5 系统调试及分析 5.1 调试结果及分析 27 6 总 结 30 致 谢 31 参考文献 32 1 绪言