Research On Service Technology Of Cloud Manufacturing Data Resource Based On REST

The development of the new model of cloud manufacturing has become the focus and hot spots of experts and scholars in academia and industry.Data service,as a kind of software service which provides data resource access,has provided a unified data model for cloud manufacturing data resource integration.How to encapsulate multi-source,heterogeneous,and dynamic data resources in cloud manufacturing environments as data services and quickly and automatically combine cloud manufacturing data services to generate data views that meet user data needs is an important issue.In this context,the paper studies the service technology of cloud manufacturing data resources,and applies the technology to the elevator cloud manufacturing data resource integration system.The main research work of this paper includes:1.A method of encapsulating and describing data service based on REST is proposed.Analyzes the dependencies between the data,and gives the concept of data dependency graph.According to the data dependency graph,the attribute is encapsulated into REST-based data service,a data service partitioning algorithm based on dependency is implemented,the concept of atomic data service is given,and the data service is described in a unified manner.2.An automatic combination of data service based on dependency graph model is proposed.A data service dependency graph model based on service dependency graph is proposed,and the concept of composite data service is given.The data service composition is modeled as a data service sub-graph search based on the dependency graph model,and the optimal data service is obtained by automatically combining the atomic data service according to the user data demand.3.A method of data combination view generation based on data service is proposed.Gives the concept of data combination view,the implementation of composite data services to get data combination view.The basic operation of data combination view is put forward,and the algorithm of data combination view is realized to ensure the formation of data combination view which satisfies the user data requirement.Finally,a prototype system of elevator cloud manufacturing data resource integration based on REST is developed.The system can automatically combine the data services in the system according to the user's data requirements to generate a visual data combination view,verify theeffectiveness and feasibility of the method.