Information processing apparatus, method for detecting air intake fault, and storage medium

Patent metadata

Field	Value
Publication number	US-2017277232-A1
Application number	US-201715419354-A
Country	US
Kind code	A1
Filing date	Jan 30, 2017
Priority date	Mar 24, 2016
Publication date	Sep 28, 2017
Grant date	—

Abstract

An information processing apparatus that includes a housing provided with a dust filter, the information processing apparatus includes a first temperature sensor that measures an internal temperature of the housing; a second temperature sensor that measures an external temperature of the housing; and a processor configured to acquire an amount of information processing of the information processing apparatus, identify a first amount of temperature change resulting from information processing of the information processing apparatus based on the amount of information processing, acquire the internal and external temperatures, calculate a second amount of temperature change resulting from an air intake fault of the dust filter by subtracting the first amount of temperature change from a temperature difference between the internal temperature and the external temperature, calculate a rate of increase in the second amount of temperature change, and output a fault notification according to the calculated rate of increase.

First claim

What is claimed is:

1 . An information processing apparatus that includes a housing provided with a dust filter, the information processing apparatus comprising:
a first temperature sensor that measures an internal temperature of the housing; a second temperature sensor that measures an external temperature of the housing; and a processor configured to:
acquire an amount of information processing of the information processing apparatus,
identify a first amount of temperature change resulting from information processing of the information processing apparatus based on the amount of information processing,
acquire the internal temperature and the external temperature,
calculate a second amount of temperature change resulting from an air intake fault of the dust filter by subtracting the first amount of temperature change from a temperature difference between the internal temperature and the external temperature,
calculate a rate of increase in the second amount of temperature change, and
output a fault notification according to the calculated rate of increase.

2 . The information processing apparatus according to claim 1 , wherein the processor is configured to:
output the fault notification with a first degree of urgency when it is determined that the rate of increase is greater than a first threshold, and output the fault notification with a second degree of urgency, the second degree of urgency being lower than the first degree of urgency, when it is determined that the rate of increase is less than or equal to the first threshold and that the second amount of temperature change is greater than a second threshold.

3 . The information processing apparatus according to claim 2 , further comprising
a fan; an air intake port including a dust filter for inhibiting a foreign substance from entering from outside, the air intake port configured to take in air from outside of the information processing apparatus when the fan is in operation; and an air outlet port provided on a face facing a face on which the air intake port is provided, the air outlet port configured to emit air taken in from the air intake port when the fan is in operation, wherein the first temperature sensor is arranged on a side of the air outlet port of the housing, and the second temperature sensor is arranged on a side of the air intake port of the housing.

4 . The information processing apparatus according to claim 3 ,
wherein the first temperature sensor is arranged not to overlap the air outlet port when viewed from the side of the air intake port toward the air outlet port.

5 . The information processing apparatus according to claim 3 ,
wherein the external temperature sensor is arranged to overlap the air intake port when viewed from the side of the air outlet port toward the air intake port.

6 . The information processing apparatus according to claim 1 ,
wherein the processor is configured to identify the first amount of temperature change by multiplying the amount of information processing by a given coefficient.

7 . The information processing apparatus according to claim 2 ,
wherein the processor is configured to: calculate a time period for the internal temperature to reach an upper limit when it is determined that at least the rate of increase is greater than the first threshold, and output, together with the calculated time period, a fault notification with the first degree of urgency.

8 . The information processing apparatus according to claim 1 ,
wherein the first temperature sensor is arranged next to a component that generates heat among a plurality of components in the housing.

9 . The information processing apparatus according to claim 1 , wherein the processor is configured to identify the first amount of temperature change by referencing correspondence information indicating a correspondence between the amount of information processing and an amount of temperature change resulting from the information processing.

10 . A control method executed by a processor included in an information processing apparatus that includes a housing provided with a dust filter, the control method comprising:
acquiring an internal temperature and an external temperature of the housing; acquiring an amount of information processing of the information processing apparatus; identifying a first amount of temperature change resulting from information processing of the information processing apparatus based on the amount of information processing; calculating a second amount of temperature change resulting from an air intake fault of the dust filter by subtracting the first amount of temperature change from a temperature difference between the internal temperature and the external temperature; calculating a rate of increase in the second amount of temperature change; and outputting a fault notification according to the calculated rate of increase.

11 . The control method according to claim 10 , wherein the outputting includes:
outputting the fault notification with a first degree of urgency when it is determined that the rate of increase is greater than a first threshold, and outputting the fault notification with a second degree of urgency, the second degree of urgency being lower than the first degree of urgency, when it is determined that the rate of increase is less than or equal to the first threshold and that the second amount of temperature change is greater than a second threshold.

12 . A non-transitory computer-readable storage medium storing a program that causes a processor included in an information processing apparatus, the information processing apparatus including a housing provided with a dust filter, to execute a process, the process comprising:
acquiring an internal temperature and an external temperature of the housing; acquiring an amount of information processing of the information processing apparatus; identifying a first amount of temperature change resulting from information processing of the information processing apparatus based on the amount of information processing; calculating a second amount of temperature change resulting from an air intake fault of the dust filter by subtracting the first amount of temperature change from a temperature difference between the internal temperature and the external temperature; calculating a rate of increase in the second amount of temperature change; and outputting a fault notification according to the calculated rate of increase.

13 . The storage medium according to claim 12 , wherein the outputting includes:
outputting the fault notification with a first degree of urgency when it is determined that the rate of increase is greater than a first threshold, and outputting the fault notification with a second degree of urgency, the second degree of urgency being lower than the first degree of urgency, when it is determined that the rate of increase is less than or equal to the first threshold and that the second amount of temperature change is greater than a second threshold.

Assignees

• Fujitsu Ltd

Inventors

• Yamashita Makoto
• Kawasumi Tatsuya
• Ohigawa Tsuyoshi

Classifications

• H05K7/20145

  Means for directing air flow, e.g. ducts, deflectors, plenum or guides · CPC title

• H05K7/20172

  Fan mounting or fan specifications · CPC title

• G05D23/1917

  using digital means · CPC title

• G06F1/206

  comprising thermal management · CPC title

• G01F25/00

  Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume · CPC title