Air-conditioning control device, air-conditioning apparatus, and air-conditioning system

Patent metadata

Field	Value
Publication number	US-10845086-B2
Application number	US-201616094100-A
Country	US
Kind code	B2
Filing date	May 24, 2016
Priority date	May 24, 2016
Publication date	Nov 24, 2020
Grant date	Nov 24, 2020

Abstract

An air-conditioning control device for controlling an air-conditioning apparatus configured to perform air conditioning of a room in which a device that changes an amount of water vapor is located. The air-conditioning control device includes a condensation occurrence determiner configured to determine whether condensation occurs in the room after a certain amount of time elapses by using an amount of change in water vapor, which is predicted by collating device operation data with a device operation table, and an air-conditioning controller configured to change an operation state of the air-conditioning apparatus when the condensation occurrence determiner determines that condensation occurs.

First claim

The invention claimed is:

1. An air-conditioning control device for controlling an air-conditioning apparatus configured to perform air conditioning of a room in which a water vapor changer that changes an amount of water vapor is located, the air-conditioning control device comprising:
a processor; and
a memory configured to store a device operation table having an operation time of the water vapor changer and an amount of change in water vapor in the room in association with each other, and device operation data concerning an operation state of the water vapor changer,
wherein the memory is configured to store sensor data including information on the amount of water vapor in the room, a sensor data history that is a history of the sensor data in past times, and a device operation data history that is a history of the device operation data in past times,
wherein the processor configured to
create the device operation table,
perform a learning process on the amount of change in water vapor stored in the device operation table by using the device operation data history and the sensor data history,
classify combinations of operation states of the plurality of the water vapor changers into patterns from the device operation data history and store information on a number of occurrences of each of the classified patterns in the device operation table as a frequency of occurrence,
predict the amount of change in water vapor until after a lapse of a predetermined amount of time by collating the device operation data with the device operation table when the frequency of occurrence associated with a pattern in the device operation data exceeds a threshold,
determine whether condensation occurs in the room after the predetermined amount of time elapses by using the predicted amount of change in water vapor, and
change an operation state of the air-conditioning apparatus when the processor determines that condensation occurs.

2. The air-conditioning control device of claim 1 , wherein the device operation table has the operation time of the water vapor changer and the amount of water vapor in the room in association with each other.

3. The air-conditioning control device of claim 1 , wherein the processor is configured to change at least one of an airflow direction, an amount of airflow, and a set temperature of the air-conditioning apparatus when the processor determines that condensation occurs.

4. The air-conditioning control device of claim 1 ,
wherein the memory is configured to store information on an amount of generated water vapor per occupant, and
wherein the processor is configured to:
specify a number of occupants in the room, and
determine whether condensation occurs by further using an amount of occupant-generated water vapor determined by multiplying the amount of generated water vapor per occupant by the number of occupants which have been specified.

5. The air-conditioning control device of claim 1 , further comprising a display device configured to display information on a current control state of the processor.

6. An air-conditioning apparatus comprising the air-conditioning control device of claim 1 , wherein the air-conditioning apparatus is controlled by the air-conditioning control device.

7. An air-conditioning system comprising:
an air-conditioning control device for controlling an air-conditioning apparatus configured to perform air conditioning of a room in which a water vapor changer that changes an amount of water vapor is located, the air-conditioning control device comprising:
a processor; and
a memory configured to store a device operation table having an operation time of the water vapor changer and an amount of change in water vapor in the room in association with each other, and device operation data concerning an operation state of the water vapor changer,
wherein the memory is configured to store sensor data including information on the amount of water vapor in the room, a sensor data history that is a history of the sensor data in past times, and a device operation data history that is a history of the device operation data in past times,
wherein the processor configured to
create the device operation table,
perform a learning process on the amount of change in water vapor stored in the device operation table by using the device operation data history and the sensor data history,
classify combinations of operation states of the plurality of the water vapor changers into patterns from the device operation data history and store information on a number of occurrences of each of the classified patterns in the device operation table as a frequency of occurrence,
predict the amount of change in water vapor until after a lapse of a predetermined amount of time by collating the device operation data with the device operation table when the frequency of occurrence associated with a pattern in the device operation data exceeds a threshold,

determine whether condensation occurs in the room after the predetermined amount of time elapses by using the predicted amount of change in water vapor, and
change an operation state of the air-conditioning apparatus when the processor determines that condensation occurs,
an air-conditioning apparatus controlled by the air-conditioning control device; and
a wall temperature sensor configured to measure a wall surface temperature that is a surface temperature of a wall surface portion which comprises multiple portions in the room,
wherein the processor is configured to determine a dew-point temperature in the room by using the amount of change in water vapor predicted from the device operation table and by using information on the wall surface temperature measured by the wall temperature sensor, and determine that condensation occurs in the room when a predicted temperature of the wall surface temperature after the predetermined amount of time elapses falls below the dew-point temperature.

8. The air-conditioning system of claim 7 ,
wherein the wall temperature sensor comprises an infrared camera, and
wherein the processor is configured to acquire wall surface temperature distribution information indicating a temperature distribution along a surface of the wall surface portion from the infrared camera as the information on the wall surface temperature, and determine, on a basis of the acquired wall surface temperature distribution information, whether condensation occurs for each portion of the wall surface portion.

9. The air-conditioning system of claim 8 , wherein the processor is configured to change a setting of the air-conditioning apparatus for a portion of the wall surface portion where the processor determines that condensation occurs.

10. The air-conditioning system of claim 7 , wherein the air-conditioning apparatus includes the air-conditioning control device.

11. An air-conditioning control device for controlling an air-conditioning apparatus configured to perform air conditioning of a room in which a water vapor changer that changes an amount of water vapor is located, the air-conditioning control device comprising:
a memory configured to store device operation data concerning an operation state of the water vapor changer and a device operation table having an operation time of the water vapor changer and an amount of change in water vapor in the room in association with each other; and
a processor configured to
predict the amount of change in water vapor until after a lapse of a predetermined amount of time by collating the device operation data with the device operation table,
determine whether condensation occurs in the room after the predetermined amount of time elapses by using the predicte

Assignees

• Mitsubishi Electric Corp

Inventors

• Sawada Masae
• Motodani Mio
• Nakajima Osamu
• Yamamoto Takaya

Classifications

• F24F2110/20

  Humidity · CPC title

• F24F2110/10

  Temperature · CPC title

• F24F11/89

  Arrangement or mounting of control or safety devices · CPC title

• F24F11/65

  for selecting an operating mode · CPC title

• F24F11/64

  using pre-stored data · CPC title