多路温湿度传感器采集及显示系统设计  

Design of Multi-Channel Temperature and Humidity Sensors Acquisition and Display System

作　　者：杨龙[1] 刘清惓[1] 

机构地区：[1]南京信息工程大学电子与信息工程学院信号与信息处理系,南京210044

出　　处：《电子器件》2014年第2期297-301,共5页Chinese Journal of Electron Devices

基　　金：国家公益性行业(气象)科研专项重点项目(GYHY200906037,GYHY201106048);国家自然科学基金项目(41075026,412475042);江苏高校优势学科建设工程项目;江苏省科技支撑计划重点项目(BE2011006)

摘　　要：针对地面气象站多点观测以及气象探测飞机机载拖拽式测量场合,提出一种基于铂电阻和HIH-5031的温、湿度采集电路,通过FPGA实现多路数据汇总至嵌入式显示终端,终端拥有基于Qt/E的实时波形显示软件,并使用SQLite3数据库存储温、湿度数据。经过与光学冷镜式露点传感器的对比测试,验证了其湿度误差小于1%,温度误差远小于0.2℃,且传感器电路响应速度快,实时波形显示界面准确、稳定,可用于地面气象站多点观测和机载拖拽式的测量场合。According to the measurement ocassion of Ground Stations multi-point observations and meteorological observation aircraft airborne towed,a temperature and humidity acquisition circuit based on platinum resistance and HIH- 5030 is proposed. In this system,Embedded software which has real-time waveform display software based on Qt / E can firstly be taken to collect multiple data by FPGA,and then,SQLite3 datebase is used to storage temperature and humidity data. Humidity error of this new system is less than 1% and temperature error is less than 0. 2 ℃ compared with optical chilled mirror dew point sensor. Moreover,this sensor circuit can get fast response speed,as well as accurate and stable real-time waveform interface,so that it can be used in the measurement ocassion of Ground Stations multi-point observations and airborne towed.

关 键 词：湿度传感器 温度传感器 FPGA ARM-LINUX QT/EMBEDDED 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置]