中文摘要：

为达到数据主动共享的目的,在分布式数据库中嵌入主动共享触发器,该触发器能够根据数据库的当前状态主动激发群体参与预警工作。主动共享触发器由安全控制、环境感知、数据提取、数据处理和共享触发5个模块组成,其中安全控制模块和环境感知模块是主动共享触发器设计的核心。算例分析结果表明,主动共享触发器能够辅助预警系统完成数据的主动共享,有助于提高预警系统的实时性。

英文摘要：

In order to improve active sharing among groups of bridge alarming system,an active sharing trigger is incorporated into the distributed database.The trigger can excite groups participate collaborative works according to database condition.The active trigger includes five modules,such as safety control,environment perception,data extraction,data process and sharing active.Simulation results demonstrate the approach can realize data active sharing among groups in alarming system and meet the real-time demand of alarming system.