Wide-area service-oriented data interaction system and method based on service management center

The invention relates to a wide-area service-oriented data interaction system and method based on a service management center. The system comprises a global management center, a service management center, a service agent, a server side and a client, wherein the global management center is located on a wide area network and monitors and manages all service agents connected to the wide area network; the service management center is responsible for managing registration, positioning and service information of all services in a service domain; the service agent is a unique outlet for realizing inter-domain data interaction and is responsible for transferring service related information between domains; and data interaction is realized by the server side and the client through the service agent. According to the system and the method, the requirements of information interaction between a scheduling control system and a substation in a smart power grid are realized, and the system and the method support interaction