基于FPGA的分布式测温系统设计  

Design of Distributed Temperature Measurement System Based on FPGA

作　　者：王庆春[1] 李红科[1] 何晓燕[2] 

机构地区：[1]安康学院电子信息技术研究中心,陕西安康725000 [2]安康学院数学与统计学院,陕西安康725000

出　　处：《自动化与仪器仪表》2017年第7期44-47,共4页Automation & Instrumentation

基　　金：陕西省教育厅科研资助项目(14JK1018);安康学院研究项目(JG08103)

摘　　要：根据DS18B20数字温度传感器的单总线通信协议,进行了"全部测量定点读取"和"定点测量定点读取"两种分布式测温系统的单总线控制器的设计,并且使用现场可编程门阵列(FPGA)分别构建这两种分布式多点测温系统的数据处理中心,再通过单总线控制模块来同时驱动多个DS18B20对外界环境温度的进行巡检测量,并把单总线读出的温度测量数据和传感器编号进行了实时显示。文章进一步给出了"全部测量定点读取"和"定点测量定点读取"两种分布式测温系统单总线控制器性能参数的对比分析。According to the protocol of 1-wire bus digital temperature sensor DS18B20,＂ all measure one readout＂ and ＂one measure one readout＂ single bus controller of distributed temperature measurement system had been designed, and two kinds of data processing center of distributed multi-point temperature measurement system were established with field programmable gate array （FPGA）, then through the single bus control module to drive multiple DS18B20 measure the ambient temperature,finally,the measurement data and the number of single bus temperature sensor were been real-time displayed. Moreover, this paper give a comparative analysis conclusion of single bus controller performance parameters between ＂all measure one readout＂ and ＂one measure one readout＂ two kinds of distributed temperature measurement system.

关 键 词：FPGA DS18B20温度传感器 有限状态机 测温系统 

分 类 号：TN06[电子电信—物理电子学]