摘要
振弦式传感器是桥梁应力监测系统中应用最为广泛的传感器。针对振弦式传感器的结构特点,本文将FPGA和ARM作为核心处理器来构建桥梁应力结构监测系统。其主要包括四个部分,即数据采集子系统、FPGA数据处理系统、数据传输系统和数据管理及应用系统。其间利用FPGA型号为EP4CE10E22C8N的处理器,构建激振信号模块、扫频信号模块、测频信号模块和顶层模块,对传感器的频率信号进行测量,测量准确率达99%。同时,利用ARM处理器型号为STM32F407的CPU和中国移动的OneNet物联网平台来实现数据传输、系统控制及人机交互等操作。试验表明,系统的稳定性及可靠性高,抗干扰能力强,可供工程技术人员参考。
Vibrating wire sensor is the most widely used sensor in bridge stress monitoring system.Aiming at the structural characteristics of the vibrating wire sensor,this paper used FPGA and ARM as the core processor to build a bridge stress structure monitoring system,which mainly included four parts,namely data acquisition subsystem,FP⁃GA data processing system,data transmission system and data management and application system.In the meantime,the FPGA model EP4CE10E22C8N was used to construct the excitation signal module,the frequency sweep signal module,the frequency measurement signal module and the top-level module to measure the frequency signal of the sensor with a measurement accuracy rate of 99%.At the same time,the ARM processor model STM32F407 CPU and China Mobile's OneNet Internet of Things platform were used to realize data transmission,system control and humancomputer interaction.The test shows that the system has high stability and reliability and strong anti-interference ability,which can be used as a reference for engineering and technical personnel.
作者
张吉圭
陈敏
王义
马剑钧
唐春婷
ZHANG Jigui;CHEN Min;WANG Yi;MA Jianjun;TANG Chunting(Guizhou City Vocational College,Guiyang Guizhou 550025)
出处
《河南科技》
2020年第26期122-124,共3页
Henan Science and Technology
基金
教育部科技发展中心高校产学研创新基金——“北创助教”基金(2018A05021)。
作者简介
张吉圭(1987-),男,本科,讲师,工程师,研究方向:嵌入式技术。
