:二滩水电厂自行研究开发了DAS ,并于1999年 4月投入使用。DAS实现了从上位机采集实时特征数据 ,并作为历史数据长期保存在数据库中 ,提供了通过数学模型分析特征数据直观反映水电厂设备的运行状态。DAS系统的开发应用 ,为二滩水电厂进行状态检修、提高管理水平和实现“无人值班”(少人值守 )打下了基础 : Ertan Hydropower Research and Development DAS on its own, and in April 1999 put into use. DAS real-time feature data collected from the host computer, and long-term preservation as a historical data in the database, provided by the mathematical model to analyze the characteristics of the data directly reflects the operational status of hydropower plant equipment. DAS system development and application of Ertan hydropower plant for state maintenance, improve management and achieve “unattended” (layman lay) foundation