基于LabVIEW的ARINC429总线检查软件的设计

ARINC429总线是我国航空工业中广泛使用的一种数据总线,对其信号检测是现场测试不可或缺的一部分。现场测试中会出现总线正负线端难以区分,总线内传输信号的正确性难以判断等问题。基于USB429/717板卡,使用LabVIEW语言编写了ARINC429总线状态检查软件。该软件实现了对ARINC429总线的接线连接状态、Label、SDI和SSM等信息的校验和检查的同时,也完成了对ARINC429总线信号的搜索、解析与数据保存。该软件设备便携易用,在总线检测中取得了良好的测试效果。

Design of ARINC 429 Bus Check Program Based on LabVIEW

ARINC429 bus is a widely used data bus in modern avionics, and its examination plays an integral role in field tests. Field testing will encounter some questions, such as which of the two bus connection ports are positive and whether the running 429 signal is correct. This article completes ARINC429 bus check program on USB429/717 board by using Lab VIEW language. The program can detect the error of bus connection and status, and check its Label, SDI and SSM. The program also searches and analyses the bus data, and preserves the results if necessary. The program is easy to carry and easy to use . Good test results are achieved during on-site operations.