王庆春,何晓燕.基于FPGA的温湿度测量系统设计[J].电子测量技术,2016,39(12):113-117
基于FPGA的温湿度测量系统设计
Design of temperature and humidity measurement system based on FPGA
  
DOI:
中文关键词:  FPGA  AM2301温湿度传感器  有限状态机  LCD12864显示屏
英文关键词:field programmable gate array (FPGA)  AM2301 temperature and humidity sensor  finite state machine (FSM)  LCD12864 display module
基金项目:陕西省教育厅科研(14JK1018)资助项目
作者单位
王庆春 安康学院电子与信息工程学院安康725000 
何晓燕 安康学院数学与统计学院安康725000 
AuthorInstitution
Wang Qingchun College of Electronics and Information Engineering, Ankang University, Ankang 725000, China 
He Xiaoyan School of Mathematics and Statistics, Ankang University, Ankang 725000, China 
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中文摘要:
      为了实现单总线数字温湿度传感器AM2301的高速并行驱动,文中通过分析温湿度传感器的单总线通信时序和数据校验算法,利用Verilog HDL硬件描述语言完成了温湿度传感器的专用驱动逻辑电路(IP核)设计,并且使用此IP核并行驱动4路单总线温湿度传感器组成了分布式温湿度测量系统,能够以字符或图形方式在液晶屏上直观显示最终的实时测量数据.文章中所设计温湿度测量系统不但方便扩展温湿度传感器的数量,而且也实现了温湿度监测范围的上下限设置、超限报警、数据存储、历史查询与对比分析等功能.
英文摘要:
      In order to high speed parallel drive AM2301 single bus digital temperature humidity sensor, the special driving logic circuit (IP core) had been designed with Verilog HDL hardware description language based on analysis of single bus communication timing and data verification algorithm of temperature and humidity sensor in this paper. Moreover, using the IP core to parallel drive 4 way AM2301 single bus digital temperature and humidity sensor, the distributed temperature and humidity measurement system was composed, which real time measurement data can been displayed on the LCD screen as character or graphically. The temperature and humidity measurement system not only had a perfect scalability of temperature and humidity sensor number, but also achieved the set temperature and humidity monitoring scope of the upper and lower limits, transfinite alarm, measurement data storage, historical data query and analysis, and other functions.
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