Study on Cache Data Synchronization and Correlative Problems in Power GIS

The paper presents a method how to implement cache data synchronization in power Geographic Information System,as well as methods of some correlative problems,also we must ensure that the system is in high-efficiency and high-security.The precept of constructing net-version-information table will implement the management of version of cached data.Among the process of synchronizing the multi-level cache data,technology route and implementation procedue are the emphases,as well as security of cached data.The technology route presented in this paper can reduce calculation in client and improve rapidity of response,so increase the capability of electric power GIS in effect.