摘要
基于提高管网模型及其应用的精度要求,有必要对用水模式的不确定性进行分析和度量。从实践经验和理论计算相结合的角度提出给水管网用户用水模式分析的流程和方法,即数据采集方案设计、采集数据标准化处理、用水模式系数概率密度分布拟合、参数最大似然估计、用户用水模式不确定性度量和表达。在用户用水模式分析流程中,在预算约束下减小采样不确定性,自动去除采集数据中的奇异数据,并对所采集数据的不确定性特征做出度量,取得了满意结果。
In order to increase the precision of the model for water distribution network and its application, analysis and measurement of uncertainty of water consumption patterns are necessary. Based on practical experience and theoretical computation, procedures and methods of the analysis of water consumption patterns are proposed, such as design of data acquisition schemes, standardized processing of acquired data, coefficient probability density distribution fitting, maximum likelihood estimation of pa- rameters, uncertainty measurement and expression of water consumption patterns, in the analysis of water consumption patterns, the sample uncertainty is reduced under budget constraints, the singular data are deleted from the acquired data automatically, and the data uncertainty is measured, thus the satisfied results are achieved.
出处
《中国给水排水》
CAS
CSCD
北大核心
2011年第7期59-62,共4页
China Water & Wastewater
基金
国家水体污染控制与治理科技重大专项(2008ZX07421-006)
关键词
用水模式
不确定性度量
概率密度分布拟合
最大似然估计
假设检验
water consumption pattern
uncertainty measurement
probability density distribution fitting
maximum likelihood estimation
hypothesis test
