Research And Implementation On Data Services For Information Integration Of Heterogeneous Systems

The power industry is the national economy foundation industry, which plays a vital role in the national economy and the society development. With the development of computer technology, network technology, information security technology and reform system of power industry, the power enterprise information system made great progress. At present, the power system is transiting from island information system to the integration application based on the power information resources platform gradually. In the complex power application system, how to achieve the interconnection and data sharing among heterogeneous systems is a very important research topic.This paper analyzed the current heterogeneous system architecture and the key technology of information integration in detail. It focuses on the cross-platform access technology based on middleware, moreover, the distributed applications communicated in heterogeneous environment is implemented. Middleware product Ice (Internet communication engine) is the follow GPL (GNU General Public License) agreement Distributed Computing open source projects, provides a heterogeneous environment applicable to the object-oriented middleware platform that supports a wide range in the area of distributed application development. It can avoid unnecessary complexity of the platform, and the network bandwidth memory usage and CPU spending has good performance. With built-in security safeguard mechanism, it can be applied in unsafe public network.The network infrastructure platform that using middleware Ice may provides the communication service for the distributed computing application, through Ice language mapping function to encapsulate servants of system, providing a common external interface, heterogeneous systems can transparently call the services required to meet the interoperability and data sharing needs. Therefore, this paper proposed power system information integration plan based on the middleware Ice. This plan seals some service of power application system into an Ice communications platform servant which performs general interface for other power application systems. Other power application systems act as the Ice communications platform client to request the data which gains own needs through the above interface. This plan achieved system integration between supervisory & control of power system and the configuration power decision-making support system of Shanghai Win-Power Ltd.. As a result, this project achieved good application effect.