基于RS 485总线的ADS1258数据采集网络系统设计与实现  

Design and implementation of ADS1258 data acquisition network system based on RS 485 bus

作　　者：高金转 严帅 张会新[1,2] GAO Jinzhuan;YAN Shuai;ZHANG Huixin(National Key Laboratory for Electronic Measurement Technology,North University of China,Taiyuan 030051,China;Key Laboratory of Instrumentation Science & Dynamic Measurement of Ministry of Education,Taiyuan 030051,China;Beijing Institute of Astronautics System Engineering,Beijing 100076,China)

机构地区：[1]中北大学电子测试技术国家重点实验室,山西太原030051 [2]仪器科学与动态测试教育部重点实验室,山西太原030051 [3]北京宇航系统工程研究所,北京100076

出　　处：《现代电子技术》2018年第7期174-177,182,共5页Modern Electronics Technique

基　　金：国家自然科学基金资助项目(51425505)~~

摘　　要：针对在航天测试领域中对多个地点处多路模拟信号进行精确采集的需求,设计了相距1 m的6个传感器节点,每个节点10路模拟信号的采集系统。该系统以Spartan-6 FPGA为核心芯片,控制24位精度的模数转换模块、40 Mb/s传输速率的RS 485总线传输模块和USB接口模块的工作,大大简化了以前的测试系统,并提高了采集数据的可靠性和系统工作的稳定性,可广泛应用于对精度要求较高的航天测试系统。In order to accurately acquire the multi-channel analog signals at different sites in the spaceflight measurement field,a acquisition system was designed and implemented,which has6sensor nodes for1meter,and each node has10-chan-nel analog signal.The Spartan-6FPGA is taken as the core chip of the system to control the analog-to-digital conversion module with24-bit,RS485bus transmission module with40Mb/s,and USB interface module.The system can simplify the previous test system greatly,improve the reliability of data acquisition and stability of system working,and is widely used in the space-flight test system with high precision requirement.

关 键 词：数据采集网络 RS485 ADS1258 USB接口 系统设计 传输速率 

分 类 号：TN710-34[电子电信—电路与系统] TP335[自动化与计算机技术—计算机系统结构]