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1.发明授权Computer modeling software for analysis of the criticality of elements in a water distribution system 有权用于分析配水系统中元素关键性的计算机建模软件公开(公告)号：US08639483B1
公开(公告)日：2014-01-28
申请号：US11607606
申请日：2006-12-01
申请人： Thomas M. Walski , Robert F. Mankowski , Shaoyu Yang , Jack S. Cook, Jr. , Ronghe Wang , Daniel Bishop , Daniel Bowdler , Zheng Yi Wu , Robert A. Gurrieri
发明人： Thomas M. Walski , Robert F. Mankowski , Shaoyu Yang , Jack S. Cook, Jr. , Ronghe Wang , Daniel Bishop , Daniel Bowdler , Zheng Yi Wu , Robert A. Gurrieri
CPC分类号： E03B1/02 , G06F17/5009 , G06Q50/06
摘要： A method and system for performing a criticality analysis of a water distribution network is provided. The method and system provides for segmentation of the system which allows a user to determine the set of elements that comprise segments, which in turn are the smallest portion of a water distribution system that can be isolated by valving. Isolating valves are included as elements in the set of elements that are used by an associated hydraulic solver engine to segment the water distribution network. Once the network has been segmented, a criticality analysis is performed whereby a hydraulic simulation is run for an outage of one or more segments, and the shortfall in demand supplied to other segments is calculated. The system provides for a linking of the ability to automatically identify segments with a hydraulic analysis model to enable a user not only to identify segments, but to rank their importance based on a variety of user defined metrics.
摘要翻译： 提供了一种用于执行配水网络的关键性分析的方法和系统。 该方法和系统提供了系统的分割，其允许用户确定包括段的元件集合，其又是可以通过阀门隔离的配水系统的最小部分。 分离阀被包括在由相关联的液压解算器引擎用于分配配水网络的元件组中的元件中。 一旦网络被分段，进行临界分析，由此运行液压模拟以中断一个或多个分段，并且计算提供给其它分段的需求量的不足。 该系统提供了利用水力分析模型自动识别段的能力的链接，以使用户不仅可以识别段，而且可以基于各种用户定义的度量对其重要性进行排名。
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公开(公告)号：US07457735B2
公开(公告)日：2008-11-25
申请号：US10051820
申请日：2002-01-17
CPC分类号： G06N3/126
摘要： A water distribution model calibration technique is provided that allows a user to design a calibration model by selecting several input parameters desired to be used for the calibration of a model that allows an engineer to collect a complete set of data to represent the overall system conditions at any given time of day. For example, several parameters may be chosen including link status, the pipe roughness coefficient, junction demand, and pipe and valve operational status. Trial solutions of the model calibration are generated by a genetic algorithm program. A hydraulic network solver program then simulates each trial solution. A calibration module runs a calibration evaluation program to evaluate how closely the model simulation is to the observed data.
摘要翻译： 提供了一种水分配模型校准技术，其允许用户通过选择期望用于校准模型的多个输入参数来设计校准模型，该模型允许工程师收集一整套数据以表示整个系统条件 任何给定的时间。 例如，可以选择几个参数，包括链路状态，管道粗糙度系数，接合需求以及管道和阀门的操作状态。 模型校准的试验解决方案由遗传算法程序生成。 然后，液压网络求解程序模拟每个试验解决方案。 校准模块运行校准评估程序来评估模拟模拟对观察数据的接近程度。
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公开(公告)号：US08175859B1
公开(公告)日：2012-05-08
申请号：US11777491
申请日：2007-07-13
申请人： Zheng Yi Wu , Thomas M. Walski , Rong He Wang , Daniel Bowdler
发明人： Zheng Yi Wu , Thomas M. Walski , Rong He Wang , Daniel Bowdler
IPC分类号： G06G7/50
CPC分类号： G06Q10/04 , G06F17/5009 , G06Q10/063 , G06Q50/06
摘要： A computer software program provides an algorithm that solves for unknown demands (and junction pressures) within a modeling system that uses a generalized, unified loop-node formulation. The program can be used to calculate the available demand (i.e., the amount of water that is to be supplied) according to the nodal pressure. Both nodal heads and flows are simultaneously solved using a gradient algorithm, which allows, in accordance with the present invention, the model to simulate situations where a change in pressure affects the quantity of water used. Criticality analyses for segments of a system in such pressure dependent scenarios can also be performed using the software program of the present invention.
摘要翻译： 计算机软件程序提供了一种解决使用广义，统一的循环节点公式的建模系统中的未知需求（和结压力）的算法。 该程序可用于根据节点压力计算可用需求（即，要供应的水量）。 使用梯度算法同时解决节点头和流两者，根据本发明，该模型允许模型模拟压力变化影响所用水量的情况。 在这样的压力相关情况下的系统的分段的关键性分析也可以使用本发明的软件程序来执行。
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4.发明授权System and method for pressure-dependent demand optimization for leakage detection 有权用于泄漏检测的压力依赖性需求优化的系统和方法公开(公告)号：US08635051B1
公开(公告)日：2014-01-21
申请号：US12550214
申请日：2009-08-28
IPC分类号： G06G7/50
摘要： In one embodiment, a hydraulic simulation model corresponding to a real-world hydraulic network is loaded in a hydraulic modeling and simulation application executing on a computer system. The hydraulic simulation model represents leakages as pressure dependent emitter flow at selected nodes (leakage nodes). Optimization criteria include a specified maximum of possible leakage nodes. A genetic algorithm (GA) generates trial solutions for an optimization, each trial solution representing locations for leakage nodes and corresponding emitter coefficients. A hydraulic analysis is performed for the trial solutions to generated model-simulated results. The model-simulated results are compared to field-observed data for the real-world hydraulic network to generate goodness-of-fit values. The process is repeated until a particular goodness-of-fit value is achieved or a maximum number of iterations is reached. Predicted locations for leakage nodes from a particular selected trial solution are then displayed to a user.
摘要翻译： 在一个实施例中，对应于真实世界的液压网络的液压模拟模型被加载到在计算机系统上执行的液压建模和仿真应用中。 液压模拟模型表示在选定节点（泄漏节点）处与压力相关的发射器流量的泄漏。 优化标准包括指定的最大可能的泄漏节点。 遗传算法（GA）生成用于优化的试验解决方案，每个试验解决方案代表泄漏节点的位置和相应的发射器系数。 对试验解决方案进行水力分析以产生模型模拟结果。 将模型模拟结果与现实世界液压网络的现场观测数据进行比较，以产生拟合优度值。 重复该过程，直到达到特定的拟合优度值或达到最大次数。 来自特定选择的试验解决方案的泄漏节点的预测位置然后显示给用户。
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5.发明授权System and method for modeling and simulating water distribution and collection systems including variable speed pumps 有权用于建模和模拟包括变速泵在内的配水和收集系统的系统和方法公开(公告)号：US08265911B1
公开(公告)日：2012-09-11
申请号：US12201529
申请日：2008-08-29
申请人： Zheng Yi Wu , Michael E. Tryby , Ezio Todini , Thomas M. Walski , Wayne R. Hartell , Kristopher L. Culin
发明人： Zheng Yi Wu , Michael E. Tryby , Ezio Todini , Thomas M. Walski , Wayne R. Hartell , Kristopher L. Culin
IPC分类号： G06G7/50
CPC分类号： E03B1/00
摘要： In one embodiment, a technique is disclosed for calculating a relative pump speed factor for attaining a prescribed hydraulic head or for pumping a prescribed amount of flow. A hydraulic model of a water distribution or collection system is defined to include link elements and node elements. At least one of the node elements represents a fixed-flow variable speed pump (VSP) that delivers a desired amount of flow, a variable speed pump battery (VSPB) that represents multiple VSPs operating in parallel with each other, a VSP with a tank located on the VSP's discharge side, or a VSP with a tank located on the VSP's suction side.
摘要翻译： 在一个实施例中，公开了一种用于计算用于获得规定的液压头或用于泵送规定量的流量的相对泵速系数的技术。 水分配或收集系统的液压模型被定义为包括链接元件和节点元件。 节点元件中的至少一个表示传递所需量的流量的固定流量变速泵（VSP），代表相互并行运行的多个VSP的变速泵电池（VSPB），具有罐的VSP 位于VSP的排放侧，或位于VSP吸力侧的VSP。
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