Adaptive Real-Time Publish-Subscribe Messaging for Distributed Monitoring Systems  

作　　者：LIU Wei WANG Qiang WANG Hongan DAI Guozhong 

机构地区：[1]Intelligence Engineering Laboratory, Institute of Software, Chinese Academy of Sciences, Beijing 100080, China

出　　处：《Chinese Journal of Electronics》2005年第4期569-574,共6页电子学报（英文版）

基　　金：This work is supported by the Hi-Tech Research and Development Project of China （No.2004AA412040） and the National Natural Science Foundation of China （No.60373055 and No.60374058）.

摘　　要：Many complex distributed real-time applications, monitoring and controlling the external environment, require sophisticated processing and sharing of an extensive amount of data under critical timing constraints. In this paper, we present an adaptive Realtime publish-subscribe （RTPS） messaging service for distributed real-time applications, and four primitives are defined for implementing the adaptive RTPS. Furthermore, adaptive RTPS is incorporated into an Active real-time database （ARTDB） named Agilor by translating RTPS primitives into subscription objects and ECA rules. We also apply real-time scheduling algorithm to protocol processing for improving predictability and minimizing priority inversions during message transmission. The experimental results indicate the idea is feasible, and the current implementation shows better performance.

关 键 词：Real-time publish-subscribe Event condition action （ECA） rule Active real-time database 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置]