低功耗智能便携式温度测量仪的研究硬件设计.doc

西安工业大学北方信息工程学院 本科毕业设计(论文) 题目： 系 专 业 班 级 姓 名 学 号 指导教师： 年月 MSP430F4250；PT1000 Low-power Intelligence Portable Temperature Measuring Meter—— Hardware Design Abstract The temperature measurement is a very common and important measurement item in industry and agriculture production. What this paper research is the low-power consumption intelligence portable temperature measuring instrument, this temperature measuring instrument uses the thermal resistance sensor ,16 position high integration and low power consumption monolithic integrated circuit MSP430F4250, this system make full use of microcontroller technology, thermometry, and alarm technology, LCD display, serial techniques, not only played a low-power intelligent portable temperature measurement temperature, but also has alarm and communication functions, the manual reset function allows the useable to measure temperature changes at any time, low power consumption enables users do not have to worry about the problem of insufficient electricity. Debugging the system, the experimental results demonstrate that the design has achieved the desired goals, and complete system of portable and low power requirements. Key Words: Low power consumption; Temperature measurement instrument; MSP430F4250; PT1000 目 录 1 绪论 1 1.温度测量仪国内外研究现状 1 1.2本论文的意义及主要内容 2 2 低功耗智能便携式温度测量仪的总体方案 3 2.1低功耗智能便携式温度测量仪系统总体结构 3 2.1.低功耗智能便携式温度测量仪结构框图 3 2.1.2低功耗智能便携式温度测量仪 4 2.2低功耗智能便携式温度测量仪工作过程描述 5 3 低功耗智能便携式温度测量仪的硬件设计 7 3.1单片机控制电路 7 3.2电源模块 8 3.3复位与晶振模块 9 3.4信号处理模块 10 3.5显示模块 12 3.5.1 MSP430液晶驱动模块的主要特点 13 3.5.2液晶驱动方法 13 3.5.3 LCD控制器与LCD_A控制器的比较 14 3.5.4 RT12864M汉字图形点阵液晶显示模块 15 3.6报警模块 15 3.7键盘与LED灯模块 15 3.8串口通信模块 17 3.9降低功耗的硬件措施 17 3.9.1晶体管的性质 17 3.9.2选用低功耗单片机 17 3.9.3选用低功耗外围电路和器件 18 3.9.4选择低功耗的工作方式 18 4 实验调试 19 4.1低功耗智能便携式温度测量仪的PCB制作 19 4.1.1 PCB板布局 19 4.1.2 PCB的布线 19 4.2低功耗智能便携式温度测量仪调试 20 4.2.1低功耗智能便携式温度测量仪分析 20 4.3低功耗智能便携式温度测量仪改进方法 20 5 结论 21 参考文献 22 致 谢 23 毕业设计（论文）知识产权声