分布式测试系统的软件增量更新设计

Design of Distributed Test System’s Software Incremental Upgrade

摘要:

测试测量领域内已经出现了不少分布式测试系统（Distributed Test System，DTS），其配套测试应用程序的升级更新维护越来越困难。文中论述了一种DTS配套测试应用程序的软件增量更新方法，采用网络变量（Network Variable，NI）中间件的发布/订阅推送模式实现“一键式”自动更新，基于文件传输协议（File Transfer Protocol，FTP）服务中间件实现媒体文件的后台自动下载，具有下载等待时间少、人工操作环节少且自动化程度高的技术优势，尤其适用于测试节点大规模且个性化软件部署的应用场景，能够有效降低软件升级更新维护的难度。

Abstract:

In the field of test and measurement, these have been a lot of Distributed Test System, and it is becoming more and more difficult to upgrade and maintain the supporting test applications. In this paper, one software incremental upgrading method for DTS supporting test applications is discussed. In this method, the publish/subscribe pushing mode based on NI middleware is used to achieve “one button” automatic upgrade, and the service middleware based on FTP is used to automatically download media files on the background. This method has technological advantages, less time for waiting the download, less manual operation link and high degree of automation. This method especially suits for the application scene of the test nodes with massive and personalized software deployment, and effectively reduces the difficulty of software upgrade and maintenance.