The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 22, 1998

Filed:

Apr. 16, 1996
Applicant:
Inventors:

Kenji Fujii, Yokohama, JP;

Koichi Homma, Yokohama, JP;

Fuminobu Komura, Yokohama, JP;

Kunio Takada, Ibaraki-ken, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01F / ;
U.S. Cl.
CPC ...
364510 ; 364509 ; 364565 ; 364550 ; 364138 ; 405 52 ;
Abstract

A river management system for controllably operating devices of management facilities installed at pluralities of rivers and waterways to manage water volumes in a river network including the pluralities of rivers and waterways. The river management system includes an operation plan database for storing therein a plurality of sets of the contents of operations of the river management facility devices in the form of operation modes when the values of water levels, flow rates, precipitations and change rates thereof at a plurality of points of the river network satisfy predetermined conditions; an operation plan decider, when the values of water levels, flow rates, precipitations and change rates thereof at the points of the river network satisfy the predetermined conditions, for selecting one of the operation modes corresponding to the conditions and determining the operation contents of the river management facility devices; and a monitor/input section for inputting values of water levels, flow rates and precipitations of the points of the river network to the system.


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