Blower control device, blower control method, and computer-readable recording medium

Patent metadata

Field	Value
Publication number	US-9052882-B2
Application number	US-201213663539-A
Country	US
Kind code	B2
Filing date	Oct 30, 2012
Priority date	Nov 21, 2011
Publication date	Jun 9, 2015
Grant date	Jun 9, 2015

Abstract

A blower control device changes a PQ characteristic in a second table so that an operating point (Q N , P N ) on the PQ characteristic in the second table agrees with an operating point (Q 0 , P 0 ) on a PQ characteristic in a first table. At this time, the blower control device changes the PQ characteristic in the second table at a rate based on Q N and Q 0 . Furthermore, the blower control device changes a load noise characteristic in the second table at a rate based on Q N and Q 0 . Then, the blower control device calculates load noise corresponding to the operating point (Q 0 , P 0 ) with respect to each rotation frequency ratio from the changed load noise characteristic. And then, the blower control device determines a rotation frequency ratio corresponding to the lowest load noise as a rotation frequency ratio at which a plurality of fans is rotated.

First claim

What is claimed is:

1. A blower control device comprising:
a memory that stores therein
a pipeline resistance of inside of a device,
a static pressure-air flow volume characteristic with respect to each ratio of respective rotation frequencies of a plurality of blowers arranged in series with respect to a ventilation flue formed inside the device,
an air flow volume-noise level characteristic with respect to each of multiple different ratios of the rotation frequencies; and…

Assignees

• Fujitsu Ltd

Inventors

• Nitta Kazuhiro
• Ueda Akira
• Yamaguchi Atsushi
• Furuya Hiroyuki
• Otsuka Akihiro

Classifications

• G06F1/206 Primary

  Physics · mapped topic

• H05K7/20209

  Electricity · mapped topic