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:
Aug. 24, 2021

Filed:

Dec. 22, 2016
Applicant:

Hitachi Industrial Equipment Systems Co., Ltd., Tokyo, JP;

Inventors:

Yaping Liu, Tokyo, JP;

Tatsurou Yashiki, Tokyo, JP;

Yukinori Katagiri, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D 7/06 (2006.01); G05B 15/02 (2006.01); G06G 7/50 (2006.01); G01F 1/00 (2006.01);
U.S. Cl.
CPC ...
G05D 7/0623 (2013.01); G01F 1/00 (2013.01); G05B 15/02 (2013.01); G05D 7/0664 (2013.01); G06G 7/50 (2013.01); F15B 2211/6654 (2013.01);
Abstract

Provided is a pipe network evaluation device that is capable of calculating a pressure loss in a pipe network and a consumption flow rate of compressed air in each terminal equipment without inputting layout information on devices, even in a case where there are some devices, the layout information about which is difficult to ascertain visually or obtain from a building drawing, or the like. Provided is a pipe network evaluation device that estimates the resistance of a pipe, the layout information about which is unknown, on the basis of pressure data on compressed air in an air tank, flow rate data on compressed air supplied from the air tank, layout unknown-part pipe outlet pressure data, for which layout information is unknown, and layout known-part pipe layout information, for which layout information is known.


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