摘要
为了满足机载分布式应用通信的灵活性和实时性要求,实现高效、可靠的数据传输,减少应用的开发和移植成本,提出一种嵌入式数据分发服务软件解决方案,建立以数据为中心的发布订阅通信模型,构建共享、虚拟的“全局数据空间”,并支持多种可配置的服务质量策略。针对机载环境下计算、存储、网络传输带宽等资源受限的特点,重点研究建立通信模型的关键技术——自发现机制,包括自发现过程、加入/退出机制和条件自发现,对数据分发服务在机载场景的应用具有一定的推进作用。
In order to meet the flexibility and real-time requirements of airborne distributed application communication,achieve efficient and reliable data transmission,and reduce application development and migration costs,an embedded data distribution service software solution is proposed.A data-centric publish subscribe communication model is established,a shared and virtual global data space is constructed,and multiple quality policies of service are supported.Focusing on the characteristics of limited computing,storage,network transmission bandwidth and other resources in airborne environments,the key technology for establishing communication models-self discovery mechanism,including self discovery process,join/exit mechanism,and conditional self discovery,plays an important role in promoting the application of data distribution services in airborne scenarios.
作者
李康
吴晓斌
闫妍
LI Kang;WU Xiao-bin;YAN Yan(Xi′an Aeronautics Computing Technique Research Institute,AVIC,Xi′an 710000,China)
出处
《航空计算技术》
2023年第5期85-88,共4页
Aeronautical Computing Technique
基金
国家重点研发计划项目资助(2017YFB301100)。
关键词
数据分发服务
发布订阅
服务质量
全局数据空间
自发现
data distribution service
publish-subscribe
quality of service
global data space
self-discovery
