Patent ID: 11903174
Assignee: NEC CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H  F  Y | IPC F  G  H

Claim 2:
3. A method for controlling an air conditioner configured to supply cooling air to a plurality of racks that each house at least one computer module, the method comprising:
receiving, by a processor, pressure values from a plurality of pressure sensors of a plurality of sensors that are each positioned at an air inlet of a corresponding rack, and temperature values from a plurality of temperature sensors of the plurality of sensors, and controlling an airflow rate of the cooling air supplied from the air conditioner based on the pressure values and the temperature values, by:
acquiring a current temperature value for each temperature sensor;
adjusting the airflow rate in such a manner that a maximum temperature value among the temperature values approaches a first value;
after adjusting the airflow rate, setting a target pressure value for each pressure sensor;
acquiring a current pressure value for each pressure sensor;
calculating a pressure drop value for each pressure sensor between the current pressure value and the target pressure value; and
adjusting the airflow rate based on a maximum pressure value among the pressure drop values.