数据处理与信号调理组合系统设计  

Design of Data Processing and Signal Modulation Combination System

作　　者：李秋芳 徐宫健 王鹏 魏巍 李凤颜 郭照峰[1] LI Qiufang;XU Gongjian;WANG Peng;WEI Wei;LI Fengyan;GUO Zhaofeng(Beijing Aerospace Measurement&Control Technology Co.,Ltd.,Beijing 100041,China)

机构地区：[1]北京航天测控技术有限公司,北京100041

出　　处：《计算机测量与控制》2024年第10期269-276,共8页Computer Measurement &Control

摘　　要：数据处理组合与信号调理组合是自动化测试系统的重要测试设备,数据处理组合包括电源、控制器、DA输出、AD采集、数字IO信号处理、串行总线通信及1553B总线通信等几个部分,目的是能够实现模拟量及数字量信号控制输出、模拟量及数字量信号采集监测、RS422串行总线通信及1553B总线数据通信等基本功能,模块化设计采用PXI总线架构形式,优点是成熟稳定可靠并且能够支持扩展,数据处理组合控制器接收指令与各功能板卡配合完成所需功能;信号调理组合作为被测与数据处理组合的中间信号转接设备,实现了数据参数的接口匹配及信号隔离等功能,重点对信号调理电路及芯片进行了计算研究,经实验测试实现了不同幅值的数字量信号和模拟量信号输入输出转换及不同转换比例的电压电流转换,经实际应用满足了信号转换及隔离等功能。The combination of data processing and signal modulation is an important testing equipment of automated test systems,the data processing combination includes a power supply,a controller,a DA output,an AD acquisition,a digital IO signal processing,a serial bus communication,and a 1553B bus communication,which can realize the analog and digital signal control output,analog and digital signal acquisition and monitoring,RS422 serial bus communication,and 1553B bus data communication.The modular design adopts PXI bus architecture,it has the advantages of mature,stable and reliable and can support the expansion,receiving instructions of the data processing combination controller,and configuration board card to complete the required functions;The signal modulation combination,as an intermediate signal switching device for the test and data processing combination,achieves the data parameter interface matching and signal conditioning isolation,which focuses on calculating the signal conditioning circuit and chip.Through experiments,it achieves different amplitudes of digital signal and analog signal input and output conversion,realizes different ratios of the voltage and current conversion,and meets the signal conversion and isolation in practical applications.

关 键 词：数据处理 信号调理电路 输入检测 信号采集 数据总线通讯 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]