# US 12,181,167 B2 · Air conditioning system and control method for the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,181,167 B2 - Document ID: US12181167B2 - Status: Granted - Kind: B2 - Application number: 17/620,609 - Filed: 2020-06-04 - Published: 2022-10-27 - Granted: 2024-12-31 - Earliest claimed: 2019-06-28 - Assignees: Panasonic Intellectual Property Management Co., Ltd. - Applicants: Panasonic Intellectual Property Management Co., Ltd. - Inventors: Takeshi Kokado - Web page: https://patentgrep.com/patent/US12181167B2 ## CPC - F24F 3/044: Systems in which all treatment is given in the central station, i.e. all-air systems - F24F 11/74: for controlling air flow rate or air velocity - F24F 1/0073: characterised by the mounting or arrangement of filters - F24F 7/003: in combination with air cleaning - F24F 11/64: using pre-stored data - F24F 2003/0446: {with a single air duct for transporting treated air from the central station to the rooms} - F24F 2110/10: Temperature - F24F 2110/20: Humidity - F24F 2110/50: Air quality properties - F24F 2110/70: Carbon dioxide - Y02B 30/70: Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating - F24F: AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B15/00; vertical ducts for carrying away waste gases from buildings E04F17/02; tops for chimneys or ventilating shafts, terminals for flues F23L17/02) - Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS ## Abstract A method of controlling a central air conditioning system includes, when a first air volume determined based on humidity in each of a plurality of rooms is less than a second air volume determined based on air quality in the room, causing a conveyor to convey air with a second air volume determined for a first room to the first room and convey air with a third air volume to a second room other than the first room, the third air volume being obtained by correcting the first air volume determined for the second room. ## Claims ### Claim 1 A method of controlling an air conditioning system, the air conditioning system including: an air conditioner; and a conveyor that conveys air that has undergone temperature control by the air conditioner, to each of a plurality of rooms in a facility, wherein the conveyor comprises a plurality of sets of conveyor fans, ducts and vent holes, a corresponding one of the sets being provided for each of the plurality of rooms, the method comprising: individually determining a first air volume for each of the plurality of rooms in accordance with temperature information indicating a temperature of each of the plurality of rooms, the first air volume being a volume of air to be conveyed to each of the plurality of rooms in order for each of the plurality of rooms to satisfy a requirement for temperature; individually determining a second air volume for each of the plurality of rooms in accordance with air quality information indicating air quality in each of the plurality of rooms, the second air volume being a volume of air to be conveyed to each of the plurality of rooms in order for each of the plurality of rooms to satisfy a requirement for air quality; when the plurality of rooms do not include a first room whose first air volume is less than the second air volume, causing the conveyor to convey air with the first air volume determined for each of the plurality of rooms, to each of the plurality of rooms; and when the plurality of rooms include the first room, causing the conveyor to convey air with a third air volume to each of the plurality of rooms, wherein the third air volume is expressed by K×Wk×Am/Wm, where Wm is the first air volume determined for the first room, Am is the second air volume determined for the first room, the first room has a highest ratio of the second air volume to the first air volume, Wk is the first air volume determined for each of the plurality of rooms, and K is a predetermined coefficient. ### Claim 2 (depends on 1) The method of controlling an air conditioning system according to claim 1, wherein the air quality information indicates a concentration of carbon dioxide in each of the plurality of rooms, and the conveyor conveys, to each of the plurality of rooms, air that has been taken in from outside the facility and that has undergone temperature control by the air conditioner. ### Claim 3 A method of controlling an air conditioning system, the air conditioning system including: an air conditioner; and a conveyor that conveys air that has undergone temperature control by the air conditioner, to each of a plurality of rooms in a facility, wherein the conveyor comprises a plurality of sets of conveyor fans, ducts and vent holes, a corresponding one of the sets being provided for each of the plurality of rooms, the method comprising: individually determining a first air volume for each of the plurality of rooms in accordance with temperature information indicating a temperature of each of the plurality of rooms, the first air volume being a volume of air to be conveyed to each of the plurality of rooms in order for each of the plurality of rooms to satisfy a requirement for temperature; individually determining a second air volume for each of the plurality of rooms in accordance with air quality information indicating air quality in each of the plurality of rooms, the second air volume being a volume of air to be conveyed to each of the plurality of rooms in order for each of the plurality of rooms to satisfy a requirement for air quality; when a total of the first air volumes is greater than or equal to a total of the second air volumes, causing the conveyor to convey air with the first air volume determined for each of the plurality of rooms, to each of the plurality of rooms; and when the total of the first air volumes is less than the total of the second air volumes, causing the conveyor to convey air with a third air volume to each of the plurality of rooms. ### Claim 4 (depends on 3) The method of controlling an air conditioning system according to claim 3, wherein the third air volume determined for one room included in the plurality of rooms is expressed by Wk×At/Wt, where Wt is the total of the first air volumes, At is the total of the second air volumes, and Wk is the first air volume determined for the one room. ### Claim 5 (depends on 4) The method of controlling an air conditioning system according to claim 4, wherein the air quality information indicates a concentration of fine particles in each of the plurality of rooms, the air conditioning system further includes an air filter, and the conveyor conveys air that has been taken in from inside the facility and that has undergone temperature control by the air conditioner, to each of the plurality of rooms via the air filter. ### Claim 6 (depends on 4) The method of controlling an air conditioning system according to claim 4, wherein the air quality information indicates humidity in each of the plurality of rooms, the air conditioning system further includes a humidifier, and the conveyor conveys, to each of the plurality of rooms, air that has been taken in from inside the facility and that has undergone temperature control by the air conditioner and humidification by the humidifier. ### Claim 7 (depends on 1) A non-transitory computer-readable recording medium for use in a computer, the recording medium having a computer program recorded thereon for causing the computer to execute the method of controlling an air conditioning system according to claim 1. ### Claim 8 An air conditioning system comprising: an air conditioner; a conveyor that conveys air that has undergone temperature control by the air conditioner, to each of a plurality of rooms in a facility, wherein the conveyor comprises a plurality of sets of conveyor fans, ducts and vent holes, a corresponding one of the sets being provided for each of the plurality of rooms; and a control device, wherein the control device: individually determines a first air volume for each of the plurality of rooms in accordance with temperature information indicating a temperature of each of the plurality of rooms, the first air volume being a volume of air to be conveyed to each of the plurality of rooms in order for each of the plurality of rooms to satisfy a requirement for temperature; individually determines a second air volume for each of the plurality of rooms in accordance with air quality information indicating air quality in each of the plurality of rooms, the second air volume being a volume of air to be conveyed to each of the plurality of rooms in order for each of the plurality of rooms to satisfy a requirement for air quality; when the plurality of rooms do not include a first room whose first air volume is less than the second air volume, causes the conveyor to convey air with the first air volume determined for each of the plurality of rooms to each of the plurality of rooms; and when the plurality of rooms include the first room, causes the conveyor to convey air with a third air volume to each of the plurality of rooms, wherein the third air volume is expressed by K×Wk×Am/Wm, where Wm is the first air volume determined for the first room, Am is the second air volume determined for the first room, the first room has a highest ratio of the second air volume to the first air volume, Wk is the first air volume determined for each of the plurality of rooms, and K is a predetermined coefficient. ### Claim 9 An air conditioning system comprising: an air conditioner; a conveyor that conveys air that has undergone temperature control by the air conditioner, to each of a plurality of rooms in a facility, wherein the conveyor comprises a plurality of sets of conveyor fans, ducts and vent holes, a corresponding one of the sets being provided for each of the plurality of rooms; and a control device, wherein the control device: individually determines a first air volume for each of the plurality of rooms in accordance with temperature information indicating a temperature of each of the plurality of rooms, the first air volume being a volume of air to be conveyed to each of the plurality of rooms in order for each of the plurality of rooms to satisfy a requirement for temperature; individually determines a second air volume for each of the plurality of rooms in accordance with air quality information indicating air quality in each of the plurality of rooms, the second air volume being a volume of air to be conveyed to each of the plurality of rooms in order for each of the plurality of rooms to satisfy a requirement for air quality; when a total of the first air volumes is greater than or equal to a total of the second air volumes, causes the conveyor to convey air with the first air volume determined for each of the plurality of rooms to each of the plurality of rooms; and when the total of the first air volumes is less than the total of the second air volume, causes the conveyor to convey air with a third air volume to each of the plurality of rooms, the third air volume being obtained by correcting the first air volume determined for the room. ### Claim 10 (depends on 1) The method of controlling an air conditioning system according to claim 1, wherein the plurality of rooms include a plurality of first rooms, each being the first room, and when one of the plurality of first rooms whose value obtained by dividing the second air volume by the first air volume is the greatest is regarded as a target room, Wm is the first air volume determined for the target room, and Am is the second air volume determined for the target room. ### Claim 11 (depends on 9) The air conditioning system according to claim 9, wherein the third air volume determined for one room included in the plurality of rooms is expressed by Wk×At/Wt, where Wt is the total of the first air volumes, At is the total of the second air volumes, and Wk is the first air volume determined for the one room.