Research On Model Of Service Scheduling Based Credit Rating In Internet Of Things

Internet of Things(IOT) is an important part of the latest generation of information technology. It realized the seamless connection of real world with Internet by connecting objects with people or objects with objects. With the development of Service-Oriented Architecture( SOA), the idea of SOA has been suggested to apply to the service of IOT, which is the general term of traditional Web Services and the Service in Internet of Things(SIOT). The most services of IOT was facing many problems, including morphological changes, the denotation expansion, environmental changes, business scheduling. The issue of sharing and operation in different levels was existing between two services.Aiming at the characteristics of IOT, the model of service scheduling was studied deeply, and a service scheduling model based on credit rating was proposed in this paper. Using the credit rating model instead of trust model was proposed in this paper. In the precondition of credit premise, the credit rating model canceled the computing of direct trust, indirect trust and comprehensive trust, and reduced the energy the system largely. Then, the credit rating model was more in line with the low-power consumption of IOT. Building of credit rating index system based on the unique properties of the service was proposed in this paper. This system could achieve credit rating dynamically and provide the most appropriate services. In general, the following works were finished in this paper:(1)To address the trust issue of service providers and service consumers, the credit rating model was proposed and built for the credit rating of service providers. This model established a credit rating index system by serve own properties, and used the decision tree classification algorithm for the credit rating.(2)The Integration of service scheduling model of resource-oriented optimization and credit rating model was carried out, the credit evaluation mechanism was added in the service scheduling, and the service scheduling model(under new IOT environment) based on credit rating was built in this paper.(3)The simulation experiment of service scheduling model(under new IOT environment) based on credit rating was performed, and the impact on service scheduling of credit rating was verified in this paper. The experimental results shown that the low credit rating service has the opportunity of scheduling, which achieving the fair service scheduling.