Research On The Architecture And Security For Collaborative Diagnosis System Based On Diagnosis Virtual Organization

Since the remote fault diagnosis system has the ability to diagnose equipments beyond space, the high efficiency and the advantage of cutting expenditure in equipments diagnosis and repairs, it has drawn more attention. At present, with higher and higher bandwidth of the Internet, it covers larger and larger area, and therefore, the remote fault diagnosis system based on the Internet has become the main trend of the development of the remote diagnosis technology.This paper puts forwards a new remote fault diagnosis architecture------collaborativediagnosis architecture based on diagnosis virtual organization, via the analysis of the deficiencies of the traditional remote fault diagnosis architecture and of the needs of the future application of the diagnosis in new technical conditions. The architecture can overcome the deficiencies and adapt to the technical developments as well.Concerning the deficiencies of security assurance for remote diagnosis system under Internet, this paper puts forwards the security assurance project of the collaborative diagnosis system based on the technology of PKI and VPN, with mechanism of authorization and authenticate based on diagnosis virtual organization.Concerning the lack of the systematic management in the original remote diagnosis system, this paper puts forwards a management project for the collaborative diagnosis system based on diagnosis virtual organization, including users management, security management, configuration management and dynamic management.In addition, in order to analyze the performance of the designed collaborative diagnosis system based on diagnosis virtual organization and the validity of its security assurance and itssystematic management, this paper designs and realizes its prototypical system------Col-RDS,including the system framework, the certificate management center and the design and realization of the diagnosis management center.