STM32F103X单片机采用光纤测温探头的温度监控装置设计
关键字 Modbus通讯协议 荧光光纤测温 温度监控 RS-485
毕业设计说明书（论文）外文摘要
Title Temperature monitoring device design on optical Fiber temperature
Abstract
For the purpose of monitoring the real-time temperature of resistance furnace, designing a temperature measurement instrument based on the fluorescent fiber-optic sensor. Fluorescence fiber-optic temperature measuring method offsets many shortages of other temperature measuring methods. For example, infrared measuring temperature is not accurate and the wireless cannot solve the power problem. System makes STM32F103X series microcontroller which is based on the core Cortex-M3 as controller，and uses a RS-485 for connecting optical fiber temperature measurement modules with the controller. In addition to loading and saving the data optical fiber temperature measuring, we can measure the real-time temperature control the temperature in the Resistance furnace which is limit-crossed ， show the real data, overrun alarm ,choose function and set or inquire the alarm threshold.
Keywords Modbus Fluorescence temperature measurement Temperature monitoring RS-485
目 次
1 绪论 1
1.1 课题的背景及意义 1
1.2 课题研究的内容及拟采用手段 1
1.3 课题的研究方案 2
2 荧光测温原理研究 4
2.1 荧光发光基本原理 4
2.2 荧光测温的原理 5
2.2.1 基于荧光强度的测温方法研究 5
2.2.2 基于荧光寿命的测温方法研究 7
2.3本章小结 13
3 系统的总体设计 14
3.1 系统总体方案设计 14
3.2 硬件总体方案设计 15
3.3 软件总体方案设计 17
3.4 本章小结 18
4 温度控制系统硬件系统设计 19
4.1 STM32F103RBT6单片机电路 19
4.2 温度采集电路设计 20
4.3 温度控制电路设计 22
4.3.1 控制方案的实施 22
4.3.2 PID 线性控温策略[25] 24
4.4 液晶显示电路设计 25
4.5 电平转换及串口通信电路设计 28
4.5.1 电平转化电路 28
4.5.2 串口通信电路 29
4.6 键盘按钮的电路设计 30
4.7 I2C-E2PROM数据存储模块设计 31
4.8 报警电路的设计 32
4.9 本章小结 33
5 温度控制系统软件系统设计 34
5.1 主程序设计流程图 34
5.2 数据传输模块 35
5.2.1 Modbus通讯协议 35
5.2.2 数据传输驱动程序流程图 37