Design of Message-oriented Middleware With Publish/Subscribe Model on Telemetry and Command Computer

Pub/Sub model with the characteristics of loose coupling, fully information sharing, many-to-many communication and flexible resources reorganization is suitable for Message-Oriented Middleware's information exchanging on Telemetry and Command(TT&C) computers. According to the disadvantage of traditional model of message-Oriented Middleware(point-to-point, message queue, shared memory), An architecture of pub/sub model on TT&C computer was put forward. The components of the architecture was analyzed. Priority the key technologies: Complete and concise message model, High efficient and real-time message matching algorithm, Message routing protocol with QoS guarantee, Virtualization strategy with double/multi machine redundancy was proposed. Experiments of matching algorithm show that the efficiency of matching algorithm proposed is higher than traditional predicate counting algorithm and violent matching.