# US 2023/0054957 A1 · Carbon dioxide concentration prediction system, carbon dioxide concentration prediction method, and computer readable medium > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2023/0054957 A1 - Document ID: US20230054957A1 - Status: Published application - Kind: A1 - Application number: 17/893,164 - Filed: 2022-08-22 - Published: 2023-02-23 - Earliest claimed: 2021-08-23 - Assignees: Asahi Kasei Microdevices Corporation - Applicants: Asahi Kasei Microdevices Corporation - Inventors: Takaaki Furuya; Masanori Masuda - Web page: https://patentgrep.com/patent/US20230054957A1 ## CPC - B01D 53/92: of engine exhaust gases (exhaust {or silencing} apparatus {for internal combustion engines, machines or engines in general}, having means for purifying, {rendering innocuous} or otherwise treating exhaust gases F01N3/00) - G01N 33/004: {CO or CO2} - B01D 2257/504: Carbon dioxide - F24F 11/30: for purposes related to the operation of the system, e.g. for safety or monitoring - F24F 2110/70: Carbon dioxide - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) - G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q) - 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) ## Abstract Provided is a carbon dioxide concentration prediction system including a prediction unit configured to predict, based on a current carbon dioxide concentration of an internal space in a prediction target and environment information in the prediction target, a carbon dioxide concentration of the internal space, and a provision unit configured to provide the carbon dioxide concentration predicted by the prediction unit. The prediction unit may further predict a change over time of the carbon dioxide concentration in the prediction target from the current carbon dioxide concentration to the carbon dioxide concentration predicted based on the current carbon dioxide concentration and the environment information, and the provision unit may further provide the change over time of the carbon dioxide concentration. ## Claims ### Claim 1 A carbon dioxide concentration prediction system comprising: a prediction unit configured to predict, based on a current carbon dioxide concentration of an internal space in a prediction target and environment information in the prediction target, a carbon dioxide concentration of the internal space; and a provision unit configured to provide the carbon dioxide concentration predicted by the prediction unit, wherein the internal space contains a gas including carbon dioxide, the environment information further includes air flow information in the internal space, the air flow information includes at least one of information of a supply unit configured to supply an external gas outside the internal space to the internal space or information of an exhaust unit configured to evacuate an internal gas that is the gas in the internal space to outside of the internal space, the information of the supply unit and the information of the exhaust unit include an expense from an operation of the supply unit and the exhaust unit, the prediction unit is configured to predict at least one of a first concentration that is the carbon dioxide concentration in a current operation state of the supply unit and the exhaust unit, a second concentration that is the carbon dioxide concentration in a case where at least one of the supply unit or the exhaust unit has changed from the current operation state, or the expense in a case where the carbon dioxide concentration is the second concentration, and the provision unit is configured to provide at least one of the current carbon dioxide concentration, the first concentration, the second concentration, or the expense. ### Claim 2 (depends on 1) The carbon dioxide concentration prediction system according to claim 1, wherein the prediction unit is configured to control at least one of the supply unit or the exhaust unit such that based on the predicted second concentration, the carbon dioxide concentration of the internal space is set to be lower than or equal to a threshold concentration. ### Claim 3 (depends on 1) The carbon dioxide concentration prediction system according to claim 1, wherein the prediction unit is configured to further predict a change over time of the carbon dioxide concentration in the prediction target from the current carbon dioxide concentration to the carbon dioxide concentration predicted based on the current carbon dioxide concentration and the environment information, and the provision unit is configured to further provide the change over time of the carbon dioxide concentration. ### Claim 4 (depends on 1) The carbon dioxide concentration prediction system according to claim 1, wherein the first concentration is the carbon dioxide concentration in a state in which the supply unit and the exhaust unit are not operated, and the second concentration is the carbon dioxide concentration in a state in which at least one of the supply unit or the exhaust unit is operated. ### Claim 5 (depends on 1) The carbon dioxide concentration prediction system according to claim 1, wherein the prediction unit is configured to predict the carbon dioxide concentration of the internal space and the expense for each of operation states of at least one of the supply unit or the exhaust unit, and the provision unit is configured to provide the carbon dioxide concentration of the internal space and the expense which are predicted by the prediction unit for each of the operation states. ### Claim 6 (depends on 1) The carbon dioxide concentration prediction system according to claim 1, wherein the prediction unit is configured to further predict, based on the current carbon dioxide concentration and the first concentration, operation start timing of at least one of the supply unit or the exhaust unit, and further predict a third concentration that is the carbon dioxide concentration in a case where an operation of at least one of the supply unit or the exhaust unit is started at the operation start timing, and the provision unit is configured to further provide at least one of the operation start timing or the third concentration. ### Claim 7 (depends on 1) The carbon dioxide concentration prediction system according to claim 1, wherein the air flow information includes at least one of information of a plurality of the supply units or information of a plurality of the exhaust units, when the air flow information includes the information of the plurality of supply units, the prediction unit is configured to predict the second concentration in a state in which each of the plurality of supply units is operated for each of the plurality of the supply units, and the provision unit is configured to provide the second concentration for each of the plurality of supply units which is predicted by the prediction unit, and when the air flow information includes information of the plurality of exhaust units, the prediction unit is configured to predict the second concentration in a state in which each of the plurality of exhaust units is operated for each of the plurality of exhaust units, and the provision unit is configured to provide the second concentration for each of the plurality of exhaust units which is predicted by the prediction unit. ### Claim 8 (depends on 1) The carbon dioxide concentration prediction system according to claim 1, wherein the prediction unit is configured to further predict, based on the carbon dioxide concentration in the prediction target, at least one of a supply amount of the external gas supplied to the internal space by the supply unit or an exhaust amount of the internal gas evacuated to outside of the internal space by the exhaust unit, and the provision unit is configured to further provide at least one of the supply amount of the external gas or the exhaust amount of the internal gas which is predicted by the prediction unit. ### Claim 9 (depends on 8) The carbon dioxide concentration prediction system according to claim 8, wherein the prediction unit is configured to further predict the carbon dioxide concentration of the internal space based on the current carbon dioxide concentration, the environment information, and at least one of the supply amount of the external gas or the exhaust amount of the internal gas. ### Claim 10 (depends on 1) The carbon dioxide concentration prediction system according to claim 1, wherein the prediction unit is configured to further predict a size of the internal space based on an image of the internal space which is captured by an image capturing unit, and further predict the carbon dioxide concentration of the internal space further based on the predicted size of the internal space. ### Claim 11 (depends on 1) The carbon dioxide concentration prediction system according to claim 1, wherein the environment information includes number information that is information of a number of at least one living subject existing in the internal space, and the prediction unit is configured to further predict the carbon dioxide concentration of the internal space further based on the number information of the living subject. ### Claim 12 (depends on 11) The carbon dioxide concentration prediction system according to claim 11, wherein the environment information includes motion information of the living subject existing in the internal space, and the prediction unit is configured to further predict the carbon dioxide concentration of the internal space further based on the motion information of the living subject. ### Claim 13 (depends on 12) The carbon dioxide concentration prediction system according to claim 12, wherein the prediction unit is configured to acquire the motion information of the living subject based on at least one of an image of the internal space which is captured by an image capturing unit or a sound of the living subject which is acquired by an audio acquisition unit. ### Claim 14 (depends on 11) The carbon dioxide concentration prediction system according to claim 11, wherein the prediction unit is configured to compensate an amount of carbon dioxide exhausted from the living subject based on the number information of the living subject and motion information of the living subject, and predict the carbon dioxide concentration of the internal space based on the compensated amount of carbon dioxide. ### Claim 15 (depends on 1) The carbon dioxide concentration prediction system according to claim 1, wherein the prediction unit is configured to compensate, based on a stay plan of a living subject in the internal space, an amount of carbon dioxide exhausted from the living subject, and predict the carbon dioxide concentration of the internal space based on the compensated amount of carbon dioxide. ### Claim 16 (depends on 15) The carbon dioxide concentration prediction system according to claim 15, further comprising: a plurality of terminals; and a determination unit configured to determine a magnitude relationship between the carbon dioxide concentration predicted by the prediction unit and a threshold concentration that is a threshold of the carbon dioxide concentration of the internal space, wherein each of the plurality of terminals has a storage unit and the provision unit, the storage unit is configured to store the threshold concentration, the prediction unit is configured to predict the second concentration, the determination unit is configured to determine a magnitude relationship between the second concentration predicted by the prediction unit and each of the threshold concentrations stored in each of the storage units, when the determination unit determines that the second concentration is higher than the threshold concentration stored in the storage unit in one terminal among the plurality of terminals, the provision unit in the one terminal is configured to provide warning information related to the carbon dioxide concentration of the internal space. ### Claim 17 (depends on 16) The carbon dioxide concentration prediction system according to claim 16, wherein the storage unit is configured to store a correlation between the carbon dioxide concentration of the internal space and a labor expense of the living subject existing in the internal space, the prediction unit is configured to predict the labor expense of the living subject corresponding to the carbon dioxide concentration of the internal space based on the correlation stored in the storage unit, and when the labor expense of the living subject which is predicted by the prediction unit is higher than or equal to a predetermined labor expense threshold, the supply unit is configured to supply the external gas to the internal space or the exhaust unit is configured to evacuate the internal gas to outside of the internal space. ### Claim 18 (depends on 1) The carbon dioxide concentration prediction system according to claim 1, wherein the prediction unit is configured to further predict, based on the current carbon dioxide concentration and the predicted carbon dioxide concentration of the internal space, operation start timing of at least one of the supply unit or the exhaust unit, and further predict a fourth concentration that is the carbon dioxide concentration in a case where an operation of at least one of the supply unit or the exhaust unit is started at the operation start timing, and the provision unit is configured to further provide at least one of the operation start timing or the fourth concentration. ### Claim 19 A carbon dioxide concentration prediction method comprising: predicting, by a prediction unit, based on a current carbon dioxide concentration of an internal space in a prediction target and environment information in the prediction target, a carbon dioxide concentration of the internal space; and providing, by a provision unit, the carbon dioxide concentration predicted in the predicting, wherein the internal space contains a gas including carbon dioxide, the environment information further includes air flow information in the internal space, the air flow information includes at least one of information of a supply unit configured to supply an external gas outside the internal space to the internal space or information of an exhaust unit configured to evacuate an internal gas that is the gas in the internal space to outside of the internal space, the information of the supply unit and the information of the exhaust unit include an expense from an operation of the supply unit and the exhaust unit, the predicting includes predicting, by the prediction unit, at least one of a first concentration that is the carbon dioxide concentration in a current operation state of the supply unit and the exhaust unit, a second concentration that is the carbon dioxide concentration in a case where at least one of the supply unit or the exhaust unit has changed from the current operation state, or the expense in a case where the carbon dioxide concentration is the second concentration, and the providing includes providing, by the provision unit, at least one of the current carbon dioxide concentration, the first concentration, the second concentration, or the expense. ### Claim 20 A computer readable medium having recorded thereon a program that, when executed by a computer, causes the computer to perform operations comprising: predicting, based on a current carbon dioxide concentration of an internal space in a prediction target and environment information in the prediction target, a carbon dioxide concentration of the internal space, wherein the internal space contains a gas including carbon dioxide, the environment information further includes air flow information in the internal space, the air flow information includes at least one of information of a supply unit configured to supply an external gas outside the internal space to the internal space or information of an exhaust unit configured to evacuate an internal gas that is the gas in the internal space to outside of the internal space, the information of the supply unit and the information of the exhaust unit include an expense from an operation of the supply unit and the exhaust unit, the prediction unit is configured to predict at least one of a first concentration that is the carbon dioxide concentration in a current operation state of the supply unit and the exhaust unit, a second concentration that is the carbon dioxide concentration in a case where at least one of the supply unit or the exhaust unit has changed from the current operation state, or the expense in a case where the carbon dioxide concentration is the second concentration; and providing the carbon dioxide concentration predicted in the predicting, wherein the providing includes providing at least one of the current carbon dioxide concentration, the first concentration, the second concentration, or the expense.