基于FPGA的室内高精度温度监测系统设计  

Design of Indoor High Precision Temperature Monitoring System Based on FPGA

作　　者：吕兆承 李营 张春丽 吴娇娇 Lv Zhaocheng

机构地区：[1]淮南师范学院电子工程学院,安徽淮南232038

出　　处：《工业控制计算机》2022年第12期101-104,共4页Industrial Control Computer

基　　金：淮南市指导性科技计划项目(2020100);国家级大学生创新创业训练项目(202110381009);产学合作协同育人项目(202101391004)。

摘　　要：设计了一种以现场可编程门阵列(FPGA)和DS18B20温度传感器为核心的室内数字温度测量系统,利用FPGA控制DS18B20进行数字温度的采集和数据的转换,再将转换后的数据实时显示在数码管上;首先在Quartus II开发平台上,利用Verilog HDL硬件描述语言完成软件设计,系统主要由分频器模块、DS18B20控制模块、8421BCD转换模块、数码管动态显示驱动模块组成,然后利用FPGA最小系统板,搭建DS18B20模块、数码管显示模块完成硬件电路设计,最后下载验证。测试结果表明,该系统不仅能够准确地测量出实时温度数据,还能快速反映周围环境的实时变化,显示温度精确度可以达到0.001℃。This paper introduces the indoor digital temperature measurement system which is based on field programmable gate array(FPGA)and DS18B20 temperature sensor,and DS18B20 is controlled by FPGA to collect digital temperature and convert data,and then the converted data is displayed on the digital tube in real time.Firstly,Verilog HDL hardware description language is used to complete the software design on Quartus II development platform.The system is mainly composed of frequency divider module,DS18B20 control module,8421BCD conversion module and digital tube dynamic display driver module.Then,the FPGA minimum system board is used.Build DS18B20 module and nixie tube display module to complete the hardware circuit design,and finally download and verify.The test results show that the system can not only accurately measure the realtime temperature data,but also quickly respond to the realtime changes of the surrounding environment,and the display temperature accuracy can reach 0.001℃.

关 键 词：温度检测 DS18B20 单总线 VERILOG 

分 类 号：TH811[机械工程—仪器科学与技术] TP274[机械工程—精密仪器及机械] TN791[自动化与计算机技术—检测技术与自动化装置]