Optimized hydromodification management with active stormwater controls
First Claim
1. A method of enabling hydromodification management to compensate for changes in water runoff characteristics resulting from altered land use, the method comprising:
- creating parameters of a pre- and post-development continuous hydrologic simulation model of a drainage management area of interest;
defining pre- and post-development flow duration data based upon the hydrologic simulation;
defining desired post-development flow duration data resulting from use of flow control;
creating flow rating data from the defined flow duration data;
defining the physical parameters of a runoff detention facility having a water outlet with a selectively adjustable opening;
defining control parameters for controlling the size of the outlet opening on the basis of the created flow rating data and the defined physical parameters;
programming a controller in communication with the outlet with the control parameters;
controlling, by the controller, the outlet opening based on the control parameters and thereby providing the flow control;
actively monitoring characteristics associated with the detention facility over time to define an actual post-development flow duration; and
comparing the actual post-development flow duration data with the previously defined post-development flow duration data and, if the actual post-development flow duration data differs from the previously defined post-development flow duration data,recalibrating the continuous hydrologic simulation model parameters based upon the actively monitored characteristics,redefining the pre- and post-development flow duration data based upon the recalibrated hydrologic simulation model parameters,recreating the flow rating data from the redefined pre- and post-development flow duration data,redefining the control parameters for controlling the size of the outlet opening on the basis of the recreated flow rating data and the defined physical parameters, andreprogramming the controller with the control parameters.
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Accused Products
Abstract
A system, methodology, and programming logic for active stormwater controls to optimize sizing and design of Hydromodification Management (HM) structural Best Management Practices (BMPs) to achieve optimal flow duration control. Control logic enables the controlled release of stormwater from a BMP in a manner most akin to pre-development flow duration curves. Inputs to this logic include: flow duration curves based on continuous hydrologic simulation for pre- and post-development conditions; real-time measurement of water level within the BMP; and real-time measurement of discharge entering the BMP. This control logic can interact with control logic for other stormwater management objectives, such as harvest and reuse, infiltration, and combined sewer overflow prevention, and respective inputs, such as real-time weather forecast data, precipitation gage data, downstream flow gauge data, and water quality data, to meet those design objectives as well. New HM BMPs can be optimized to be smaller and, thus, more feasible to implement. Existing stormwater facilities designed for flood control or other management objectives can be retrofitted to provide hydromodification control as well. When utilized with real-time flow and water level monitoring equipment and data, the flow release logic can be adaptively adjusted without physical retrofit of the BMP'"'"'s outlet.
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Citations
22 Claims
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1. A method of enabling hydromodification management to compensate for changes in water runoff characteristics resulting from altered land use, the method comprising:
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creating parameters of a pre- and post-development continuous hydrologic simulation model of a drainage management area of interest; defining pre- and post-development flow duration data based upon the hydrologic simulation; defining desired post-development flow duration data resulting from use of flow control; creating flow rating data from the defined flow duration data; defining the physical parameters of a runoff detention facility having a water outlet with a selectively adjustable opening; defining control parameters for controlling the size of the outlet opening on the basis of the created flow rating data and the defined physical parameters; programming a controller in communication with the outlet with the control parameters;
controlling, by the controller, the outlet opening based on the control parameters and thereby providing the flow control;actively monitoring characteristics associated with the detention facility over time to define an actual post-development flow duration; and comparing the actual post-development flow duration data with the previously defined post-development flow duration data and, if the actual post-development flow duration data differs from the previously defined post-development flow duration data, recalibrating the continuous hydrologic simulation model parameters based upon the actively monitored characteristics, redefining the pre- and post-development flow duration data based upon the recalibrated hydrologic simulation model parameters, recreating the flow rating data from the redefined pre- and post-development flow duration data, redefining the control parameters for controlling the size of the outlet opening on the basis of the recreated flow rating data and the defined physical parameters, and reprogramming the controller with the control parameters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A system for enabling hydromodification management to compensate for changes in water runoff characteristics resulting from altered land use, the system comprising:
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a runoff detention facility having a water inlet and a water outlet, the water outlet having a selectively controllable opening; at least one sensor in communication with the detention facility for sensing one of;
water in-flow rate;
water out-flow rate; and
water volume within the detention facility;a controller, executing control logic code, in communication with the water outlet for selectively controlling the water outlet opening in accordance with the control logic code; memory associated with the controller for storing the control logic code; and a memory interface enabling selective reprogramming of the control logic code within the memory; wherein the control logic code is defined according to the steps of creating parameters of a pre- and post-development continuous hydrologic simulation model of a drainage management area of interest, defining pre- and post-development flow duration data based upon the hydrologic simulation, defining desired post-development flow duration data resulting from use of flow control, creating flow rating data from the defined flow duration data, defining the physical parameters of the detention facility and water outlet, defining control parameters for controlling the size of the water outlet opening on the basis of the created flow rating data and the defined physical parameters, programming the controller with the control parameters by downloading the control logic code into the memory, the controller for controlling the water outlet opening and thereby providing the flow control on the basis of the control parameters in the control logic code; actively monitoring characteristics associated with the detention facility over time with the at least one sensor to define a measure of actual post-development flow duration; and comparing the actual post-development flow duration data with the previously defined post-development flow duration data and, if the actual post-development flow duration data differs from the previously defined post-development flow duration data, recalibrating the continuous hydrologic simulation model parameters based upon the actively monitored characteristics, redefining the pre- and post-development flow duration data based upon the recalibrated hydrologic simulation model parameters, recreating the flow rating data from the redefined pre- and post-development flow duration data, redefining the control parameters for controlling the size of the water outlet opening on the basis of the recreated flow rating data and the defined physical parameters, and reprogramming the controller with the control parameters by downloading the control logic code into the memory. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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Specification