Title:
SET NUMBER CONTROLLER OF RAINWATER PUMP
Document Type and Number:
Japanese Patent JPH03271816
Kind Code:
A
Abstract:
PURPOSE:To safety hold a pump well water level in a low position in the case a large quantity of rainfall is generated in a short time by determining an increase and a decrease of a final number of operation sets of a rainwater pump by combining an empirical inference means and a quantitative inference means. CONSTITUTION:In a quantitative inference means 14, the number of operating sets of a pump is determined by inferring an increase and a decrease of the number of operating sets of a rainwater pump from a relation of an inflow flow rate predictive value obtained from process data and a pump well water level predictive value. In this case, when a inflow flow rate to a pump well or a pump well water level is in an ascending tendency, an empirical inference means 15 infers an increase and a decrease of the number of operating sets of the pump from a relation of the pump well water level and a pump well water level varied state, corrects the increase and the decrease of the number of operating sets of the pump of a result of quantitative inference, based on a result of this inference and outputs it instead of the number of operating sets of the pump by the quantitative inference means 14. In such a way, even in the case a sudden variation of the pump well water level is generated, it is held stably in a low water level.
Inventors:
SHIMOGAWARA TADAHIKO
Application Number:
JP7101990A
Publication Date:
December 03, 1991
Filing Date:
March 20, 1990
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
F04D15/00; F04B49/06; G05B13/02; G05D9/12; (IPC1-7): F04B49/06; F04D15/00; G05B13/02; G05D9/12
Attorney, Agent or Firm:
Takehiko Suzue (3 outside)
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