Ventilation system, ventilation method, ventilation control device, and non-transitory computer-readable recording medium

Patent metadata

Field	Value
Publication number	US-9869482-B2
Application number	US-201314044096-A
Country	US
Kind code	B2
Filing date	Oct 2, 2013
Priority date	Oct 5, 2012
Publication date	Jan 16, 2018
Grant date	Jan 16, 2018

Abstract

The ventilation system is a system for ventilating a building and comprises an air supplier/exhauster comprising air supply function and exhaust function and a ventilation control device controlling the operation of the air supplier/exhauster. Upon operating the air supplier/exhauster, the ventilation control device determines which the air supplier/exhauster conducts, air supply operation or exhaust operation, based on wind information regarding the outdoor wind. The ventilation through the ventilation passage from the air supplier/exhauster to a vent provided in the building is conducted when the air supplier/exhauster conducts air supply operation. Alternatively, the ventilation through the ventilation passage from the vent to the air supplier/exhauster is conducted when the air supplier/exhauster conducts exhaust operation.

First claim

What is claimed is:

1. A ventilation system for ventilating a building, comprising:
an air supplier/exhauster comprising air supply function and exhaust function; and
a ventilation control device controlling operation of the air supplier/exhauster,
wherein upon operating the air supplier/exhauster, the ventilation control device determines which operation the air supplier/exhauster conducts, an air supply operation to bring outdoor air into the building, or an exhaust operation to exhaust air in the building to outside of the building, based on wind information regarding the outdoor wind, and
the ventilation through a ventilation passage from the air supplier/exhauster to a vent provided to the building is conducted when the air supplier/exhauster conducts the air supply operation, and alternatively the ventilation through the ventilation passage from the vent to the air supplier/exhauster is conducted when the air supplier/exhauster conducts the exhaust operation, and
wherein
the ventilation control device determines whether the installation point of the air supplier/exhauster is windward or leeward based on the wind information, and orders the air supplier/exhauster to conduct the air supply operation if the air supplier/exhauster is windward and orders the air supplier/exhauster to conduct the exhaust operation if the air supplier/exhauster is leeward.

2. The ventilation system according to claim 1 , further comprising:
a wind information measurer measuring information regarding the outdoor wind,
wherein the ventilation control device uses the measurement results of the wind information measurer as the wind information.

3. The ventilation system according to claim 2 , wherein
the wind information measurer includes two separate wind pressure sensors each measuring a wind pressure of the outdoor air,
wherein the ventilation control device determines whether the installation point of the air supplier/exhauster is windward or leeward by comparing the wind pressure measured by each of the two wind pressure sensors.

4. The ventilation system according to claim 2 , wherein
the wind information measurer comprises a wind direction sensor that measures a direction of the wind, and
the ventilation control device determines whether the installation point of the air supplier/exhauster is windward or leeward based on the measurement results of the wind direction sensor, a direction of the installation point of the air supplier/exhauster, and a direction of the place where the vent is provided.

5. The ventilation system according to claim 1 , further comprising:
a first environment sensor measuring a predetermined physical quantity representing the air condition in the building; and
a second environment sensor measuring a predetermined physical quantity representing the condition of the outdoor air,
wherein the ventilation control device determines whether it is appropriate to conduct the ventilation based on the respective measurement results of the first and second environment sensors and if it is appropriate, operates the air supplier/exhauster.

6. The ventilation system according to claim 1 , wherein
the ventilation control device adjusts at least one of a performance or an operation time of the air supplier/exhauster in accordance with a force of the outdoor wind.

7. A ventilation method, comprising:
acquiring wind information regarding the outdoor wind;
ordering an air supplier/exhauster comprising air supply function and exhaust function to conduct one of two operations, an air supply operation to bring outdoor air into a building or an exhaust operation to exhaust air in the building to outside of the building, based on the acquired wind information for ventilating the building;
determining whether the air supplier/exhauster is situated windward or leeward;
conducting the ventilation through a ventilation passage from the air supplier/exhauster to a vent provided to the building when the air supplier/exhauster conducts the air supply operation, and alternatively conducting the ventilation through the ventilation passage from the vent to the air supplier/exhauster when the air supplier/exhauster conducts the exhaust operation, and further comprising:
ordering the air supplier/exhauster to conduct the air supply operation when the air supplier/exhauster is situated windward, and alternatively ordering the air supplier/exhauster to conduct the exhaust operation when the air supplier/exhauster is situated leeward.

8. The ventilation method according to claim 7 , further comprising:
adjusting at least one of a performance or an operation time of the air supplier/exhauster in accordance with a force of the outdoor wind.

9. A ventilation control device controlling ventilation of a building, comprising:
a wind information acquirer acquiring wind information regarding the outdoor wind; and
an air supply/exhaust controller controlling operation of an air supplier/exhauster comprising air supply function and exhaust function,
wherein upon operating the air supplier/exhauster, the air supply/exhaust controller determines which the air supplier/exhauster conducts, an air supply operation to bring outdoor air into the building or an exhaust operation to exhaust air in the building to outside of the building, based on the wind information acquired by the wind information acquirer, and determines whether the air supplier/exhauster is situated windward or leeward;
the ventilation through a ventilation passage from the air supplier/exhauster to a vent provided to the building is conducted when the air supplier/exhauster conducts the air supply operation, and alternatively the ventilation through the ventilation passage from the vent to the air supplier/exhauster is conducted when the air supplier/exhauster conducts the exhaust operation, and wherein
the air supply/exhaust controller orders the air supplier/exhauster to conduct the air supply operation when the air supplier/exhauster is situated windward, and alternatively orders the air supplier/exhauster to conduct the exhaust operation when the air supplier/exhauster is situated leeward.

10. The ventilation control device according to claim 9 , wherein
the air supply/exhaust controller adjusts at least one of a performance or an operation time of the air supplier/exhauster in accordance with a force of the outdoor wind.

11. A non-transitory computer-readable recording medium having stored thereof a program allowing a computer controlling ventilation of a building to function as:
a wind information acquirer acquiring wind information regarding the outdoor wind; and
an air supply/exhaust controller controlling operation of an air supplier/exhauster comprising air supply function and exhaust function,
wherein upon operating the air supplier/exhauster, the air supply/exhaust controller determines which operation the air supplier/exhauster conducts, an air supply operation to bring outdoor air into the building or an exhaust operation to exhaust air in the building to outside of the building, based on the wind information acquired by the wind information acquirer,
the ventilation through a ventilation passage from the air supplier/exhauster to a vent provided in the building is conducted when the air supplier/exhauster conducts the air supply operation, and alternatively the ventilation through the ventilation passage from the vent to the air supplier/exhauster is conducted when the air supplier/exhauster conducts the exhaust operation, and wherein
the air supply/exhaust controller orders the air supplier/exhauster to conduct the air supply operation when the air supplier/exhauster is situated windward, and alternatively orders the

Assignees

• Mitsubishi Electric Corp

Inventors

• Matsumoto Takashi
• Yano Hirotoshi
• Yoshikawa Toshiaki
• Matsubara Komi
• Hagiwara Masami

Classifications

• F24F2110/40

  Pressure, e.g. wind pressure · CPC title

• F24F2011/0005

  to create underpressure in a room, keeping contamination inside · CPC title

• F24F2011/0004

  to create overpressure in a room · CPC title

• F24F11/0001

  for ventilation (F24F11/30 takes precedence) · CPC title

• F24F7/013

  using wall or window fans, displacing air through the wall or window · CPC title