Research on Web-Based Multi-Agent System for Aeroengine Fault Diagnosis

On the analysis of current state of aeroengine remote diagnosis, collaborative mechanism based on multi-agent was introduced to overcome the obstacles of conventional remote fault diagnosis. The model of aeroengine remote collaborative diagnosis based on multi-agent was put forward on analysis of the positional relationship of all agents in the collaborative environment and the relationship between collaborative agents and roles in the course of collaboration. Some key technologies such as coordination mechanism, task assignment mechanism, agent interaction mechanism, case-based reasoning (CBR) in treatment agent, and the analytic hierarchy process (AHP) in decision analysis were discussed and specific methods of realization were given concretely. Based on these, a Web-based prototype system for aeroengine fault diagnosis was developed on the JADE (Java Agent DEvelopment Framework) platform. The process of system implementation and a case example of fault diagnosis were presented to illustrate and prove the proposed system's applicability. Running results show the feasibility and reliability of the framework, which will be helpful to integrate the aeroengine diagnosis knowledge, improve the diagnosis efficiency effectively and decrease the aeroengine diagnosis cost remarkably.