| dc.description.abstract | Taiwan’s early residential construction didn’t enforce separation of sewage pipe and storm water pipe, which is why additional water along with underground water run into the same underground piping system during heavy rain and high tide situation. Such piping system can no long handle the amount of water from recent extreme weather condition, piping network becomes flood channel, and sewage plant station become a big pump station, resulting overloading or even catastrophic disaster.
This study mainly explores the abnormal water level pattern in the sewage piping network. Data in the case study is recorded every hour, 24 sets a day, which equals to 8760 sets per year. It’s divided into three steps: First step is to install verification device, compare data, debug errors and sorting information. Second step is to apply the abnormal water level from the database to a supervised back propagation neural network model learning，applying abnormal rain fall water level mode, abnormal underground water mode, and all round estimation mode, to neural network model learning. Last step is to apply all finished mode into training data, entering network verification, and use Linear loop analysis to compare the real figure with the estimated figure.
Results were promising to 80% accuracy. By establishing abnormal sewage collecting network system, allowing relevant institutes or officers to warn and adjust control figures and divert flood without paying expensive equipment to be installed at different sectors. | en_US |