Urban drainage system river-entering water quantity calculation method based on GIS platform and open source data

• Main Authors: DONG YUEQUN, TANG XIAOXUE, MAO JIANHUA, AN YINGYU, JIANG BOFENG
• Format: Patent
• Language: Chinese; English
• Published: 04.11.2022
• Subjects: CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention provides a GIS platform and open source data-based method and system for calculating the river entering water amount of an urban drainage system. The method comprises the following steps of: obtaining open source data of a drainage area to construct a basic database and storing the basic database in a GIS platform; dividing the drainage area into a plurality of independent calculation units based on the spatial resolution of the open source GIS data in the basic database, and obtaining a parameter value of each independent calculation unit; constructing a runoff and sewage flow model of each independent calculation unit, and combining the runoff and sewage flow model with the parameter value of each independent calculation unit to obtain the runoff and sewage flow of each independent calculation unit; the confluence flow of the drainage area is obtained through a transportation time algorithm; based on the confluence flow of the drainage areas and in combination with the sewage plant treatment c