基于labview的温度采集系统设计目录摘要.............................................................................................................I1、绪论.....................................................................................................II1.1研究背景与意义...........................................................................II1.2系统总体结构设计.......................................................................II2、基于labview的温度采集系统的硬件设计........................................12.1外接采集节点模块电路................................................................12.1.1显示电路设计.......................................................................12.1.2键盘电路的设计...................................................................22.1.3报警电路...............................................................................32.2温控模块电路设计........................................................................42.2.1温度传感器DS18B20...........................................................42.2.2DS18B20的测温原理..........................................................52.2.3温度传感电路设计...............................................................62.2.4温度控制电路的设计...........................................................82.4虚拟机模拟通信总线技术............................................................83、基于labview的温度采集系统的软件设计......................................113.1软件总设计..................................................................................113.2labview自动识别串口技术介绍.................................................123.3系统程序软件设计......................................................................153.3.1系统AD采样程序设计......................................................153.3.2键盘子程序设计.................................................................173.2.4温度DS18B20读取子程序................................................183.2.5中断服务子程序.................................................................204、基于labview的温度采集系统模拟..................................................214.1虚拟仪器的概述..........................................................................214.2程序前面板的介绍以及运行情况..............................................224.2.1系统控制.............................................................................234.2.2当前温度.............................................................................234.2.3温度走向图.........................................................................244.2.4温度范围.............................................................................244.2.5统计信息.............................................................................254.2.6直方图.................................................................................254.2.7直方图参数.........................................................................264.3程序后面板的介绍......................................................................264.3.1重要子VI的介绍...............................................................274.3.2vi层次结构.........................................................................27结论........................................................................................................
