基于PXI总线的校靶测试模拟系统研制  

STUDY AND IMPLEMENTATION OF A CALIBRATION TARGETTEST SIMULATION SYSTEM BASED ON PXI BUS

作　　者：张逸龙 李智[1,2] 刘均华 Zhang Yilong;Li Zhi;Liu Junhua(College of Electronic Engineering and Automation,Guilin University of Electronic Technology,Guilin 541004,Guangxi,China;College of Electronic Information and Automation,Guilin University of Aerospace Technology,Guilin 541004,Guangxi,China)

机构地区：[1]桂林电子科技大学电子工程与自动化学院,广西桂林541004 [2]桂林航天工业学院电子信息与自动化学院,广西桂林541004

出　　处：《计算机应用与软件》2024年第7期342-349,共8页Computer Applications and Software

摘　　要：为满足某型飞行器校靶测试系统的研制调试需求,提出一种基于虚拟仪器与PXI总线技术的校靶测试模拟系统研制方法。分析模拟系统的功能需求,选用符合要求的功能模块和外部设备,并设计转接适配器;对部分特殊信号进行特征分析并构建合理的信号模型;按照模拟系统软件的功能需求,结合线程同步技术在Visual Studio软件开发环境下完成系统软件研制;测试结果表明,模拟系统信号输出稳定可靠,电压输出精度优于±0.01 V,频率输出精度优于0.1 Hz,时间控制精度优于0.01 s,满足校靶测试系统调试需求,可有效辅助测试系统研制调试,缩短研发周期,降低调试成本。In order to meet the development and debugging needs of a certain type of aircraft calibration test system,a method for the development of a calibration target test simulation system based on virtual instrument and PXI bus is proposed.The functional requirements of the simulation system were analyzed,the functional modules and external equipment that met the requirements were selected,and the transfer adapter was designed.The characteristics of some special signals were analyzed and a reasonable signal model was constructed.According to the functional requirements of the simulation system software,the system software development was completed under the Visual Studio software development environment combined with thread synchronization technology.The test results show that the analog system signal output is stable and reliable,the voltage output accuracy is better than±0.01 V,the frequency output accuracy is better than 0.1 Hz,and the time control accuracy is better than 0.01 s.The design meets the debugging needs of the calibration target test system,which can effectively assist the development and debugging of the test system,shorten the development cycle,and save the debugging cost.

关 键 词：虚拟仪器 PXI总线 模拟系统 线程同步 信号模拟 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]