【作者】 卢胜利； 曹家麟；

【Author】 Lu Shengli 1,2,Cao Jialin 2 1.Department of Automation,Tianjin University of Technology and Education,Tianjin 300222,P.R.China 2.Sch of Mach Elec and Automation,Shanghai University,Shanghai 200072,P.R.China

【机构】 天津工程师范学院自动化工程系； 上海大学机电工程与自动化学院；

【摘要】 灌渠斗口水流量通常依据闸门开度、闸前和闸后水位等可观测信息估算,具有软测量的典型特征。本文的软测量专家系统是软测量技术与专家系统结合的产物:基本知识库采用水工建筑物量水公式组构成,推理过程按照水流量软测量和流量系数率定要求进行,通过扩充知识库实现的流量系数细分率定,使软测量精度得到显著改善。更多还原

【Abstract】 water discharge at the outlet of irrigation channel is estimated through measurable information such as open-level of floodgate,water level at front and back of the floodgate and so on,that has typical characteristics of soft-sensing.The expert system of soft-sensing introduced in this paper combines an expert system with soft-sensing.Its knowledge-base is composed of the formulas applied in measuring water discharge at the hydraulic structure and inference engine runs according to soft-sensing for the water discharge and calculation of the flow-indexes.Meticulous calculation of flow-indexes based on knowledge-base expansion improved remarkably precision of the soft-sensing.更多还原