基于以太网技术的光电信号检测系统  

Photoelectric Signal Detection System Based on Ethernet Technology

作　　者：于波[1] 沈佳怡 战强 吕秀丽[1] YU Bo;SHEN Jia-yi;ZHAN Qiang;LV Xiu-li(School of Physics and Electronic Engineering,Northeast Petroleum University)

机构地区：[1]东北石油大学物理与电子工程学院

出　　处：《化工自动化及仪表》2024年第4期671-680,共10页Control and Instruments in Chemical Industry

基　　金：黑龙江省教育科学规划重点课题(批准号:GJB1421131)资助的课题;黑龙江省高等教育教学改革研究项目(批准号:SJGY20210110)资助的课题。

摘　　要：针对光信号检测传输速率低、传输距离短及检测成本高等问题,结合EP4CE115F29C7N型芯片,设计基于以太网的光电信号检测系统。该系统将光电信号采集模块采集到的信号通过AD7606采样并进行预处理后存储到片外SDRAM,同时在UDP/IP协议基础上设计以太网通信模块,将数据通过数据包的方式发送到上位机,并基于LabVIEW设计光信号采集监控系统,实现对上传数据的滤波和实时检测。通过对比输入信号和LabVIEW监控系统显示信号的一致性,验证了系统的正确性。实验结果表明:该系统可以减少光检测信号远距离传输的数据损耗,提高光电信号的检测效率,有较好的实时性和可读性,且程序移植灵活,节约并缩短了光电检测成本和系统开发时间。Aiming at the low transmission rate,short transmission distance and high detection cost of the optical signals,a photoelectric signal detection system based on Ethernet was designed based on Altera EP4CE115F29C7N chip.In this system,the signals collected by the photoelectric signal acquisition module was sampled and preprocessed by AD7606 and stored in the off-chip SDRAM.Meanwhile,based on the UDP/IP protocol,Ethernet communication module was designed and the data was sent to the upper computer via the data packet,including having LabVIEW based to design optical signal acquisition and monitoring system to realize uploaded data filtering and real-time detection.Through comparing the consistency between input signal and display signal of the LabVIEW monitoring system,the correctness of the system was verified.The experimental results show that,the system can reduce the data loss of optical detection signals in long-distance transmission,improve detection efficiency of the photoelectric signals,have good real-time performance and readability and the program can be flexibly transplanted and it can save and shorten optical detection cost and system development time.

关 键 词：光电检测 FPGA 以太网 UDP/IP LABVIEW 

分 类 号：TN29[电子电信—物理电子学] TN919