| 摘要 |
PROBLEM TO BE SOLVED: To stably control the rainwater drainage by combining an inflow water quality prediction model with an inflow prediction model without mounting a water quality sensor difficult in maintenance and the like. SOLUTION: This rainwater drainage controller comprises a storm sewage inflow input part for inputting the storm sewage inflow, and a water quality prediction model. An inflow water quality prediction operating part predicts the future inflow water quality on the basis of the storm sewage inflow input from the storm sewage inflow input part and the water quality prediction model. The drainage control part control the drainage devices 7, 8 on the basis of the future inflow water quality operated by the inflow water quality prediction operating part. The water quality prediction model modelizes the inflow water quality C1 as dS/dt=LF-(k.Sm.Qn), C1=(k.Sm.Qn+1), when the storm sewage inflow is Q, an amount of sediment in pipe is S, an outflow addition amount is LF, and parameters are k, m, n.
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