WO2020009183A1 - Système de commande d'environnement interne de compartiment - Google Patents

Système de commande d'environnement interne de compartiment Download PDF

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Publication number
WO2020009183A1
WO2020009183A1 PCT/JP2019/026608 JP2019026608W WO2020009183A1 WO 2020009183 A1 WO2020009183 A1 WO 2020009183A1 JP 2019026608 W JP2019026608 W JP 2019026608W WO 2020009183 A1 WO2020009183 A1 WO 2020009183A1
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Prior art keywords
air
concentration
detected
state detector
temperature
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PCT/JP2019/026608
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English (en)
Japanese (ja)
Inventor
直宏 田中
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Daikin Industries Ltd
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Daikin Industries Ltd
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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
    • A23B2/00—Preservation of foods or foodstuffs, in general
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
    • A23B2/00—Preservation of foods or foodstuffs, in general
    • A23B2/70—Preservation of foods or foodstuffs, in general by treatment with chemicals
    • A23B2/704—Preservation of foods or foodstuffs, in general by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor
    • A23B2/708—Preservation of foods or foodstuffs, in general by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
    • A23B4/00—Preservation of meat, sausages, fish or fish products
    • A23B4/14—Preserving with chemicals not covered by groups A23B4/02 or A23B4/12
    • A23B4/16—Preserving with chemicals not covered by groups A23B4/02 or A23B4/12 in the form of gases, e.g. fumigation; Compositions or apparatus therefor
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
    • A23B7/00—Preservation of fruit or vegetables; Chemical ripening of fruit or vegetables
    • A23B7/14—Preserving or ripening with chemicals not covered by group A23B7/08 or A23B7/10
    • A23B7/144—Preserving or ripening with chemicals not covered by group A23B7/08 or A23B7/10 in the form of gases, e.g. fumigation; Compositions or apparatus therefor
    • A23B7/148—Preserving or ripening with chemicals not covered by group A23B7/08 or A23B7/10 in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features

Definitions

  • the present disclosure relates to an environment control system in a refrigerator.
  • Patent Document 1 discloses a method for maintaining freshness by spraying a liquid extracted from raw bamboo (raw bamboo extract) into a storage for storing fruits and vegetables, which is a kind of fresh product. This method is a method of maintaining the freshness of fruits and vegetables by utilizing the ethylene adsorption ability, the antifungal effect, and the antibacterial effect of the raw bamboo extract. This document also describes that the sugar content of fruits and vegetables is measured, and the spray amount of the raw bamboo extract is adjusted based on the measured sugar content.
  • a storage for storing the fruits and vegetables is provided with a tank for storing the raw bamboo extract, and the raw bamboo extract is periodically stored in this tank. Need to keep refilling. For this reason, there was a problem that the man-hour required for storage of perishables increased.
  • An object of the present disclosure is to reduce the number of steps required for storing fresh food.
  • a first aspect of the present disclosure is directed to a storage environment control system (10), an environment control device (14) that controls a storage environment of a storage (1) that stores perishables (7), and the storage. And a state detector (15) for detecting a state index indicating the state of the perishables (7) stored in (1). And at least one of the carbon dioxide concentration as an environmental index indicating the environment inside the storage (1), and adjusting the environmental index based on the state index detected by the state detector (15). .
  • the environment adjustment device (14) adjusts the environment inside the storage (1) based on the state index detected by the state detector (15).
  • the environmental index indicating the environment inside the storage (1) is adjusted based on the state index of the fresh food (7) actually stored in the storage (1). Therefore, according to this aspect, it is possible to automatically bring the environment inside the storage (1) closer to the environment suitable for the fresh food (7) to be stored. As a result, it is possible to reduce the man-hour required for storing the fresh food (7).
  • the state detector (15) may be configured to directly measure the state index, or may be configured to estimate or calculate the state index from a physical quantity different from the state index. It may be.
  • the environment control device (14) uses at least one of the temperature of the in-compartment air, the oxygen concentration, and the carbon dioxide concentration as the environmental index. When there are a plurality of environmental indicators, the environment control device (14) adjusts each of the plurality of environmental indicators.
  • the state detector uses at least one of the sugar content, hardness, and internal ethylene concentration of the fresh product (7) as the state index. It is to detect.
  • the environment control device (14) adjusts the environment index based on at least one of the sugar content, hardness, and internal ethylene concentration of the fresh product (7) detected by the condition detector (15). .
  • the state detector (15) includes HxR (inosine) and Hx (hypoxanthine) among the ATP-related compounds contained in the fresh product (7). Is detected as the state index.
  • the environment control device (14) adjusts the environment index based on the K value of the fresh product (7) detected by the state detector (15).
  • the environmental adjustment device (14) adjusts the temperature of the in-compartment air, which is the environmental index, and the state detector (15) includes the freshness.
  • the sugar level of the product (7) is detected as the state index, and the environmental control device (14) determines that the sugar level of the fresh product (7) detected by the state detector (15) is higher than a first reference sugar level.
  • the environment control device (14) adjusts the temperature of the air in the refrigerator based on the sugar content of the fresh product (7), which is a state indicator.
  • the environment control device (14) performs an operation of lowering the temperature of the inside air when the state index (sugar content) detected by the state detector (15) is higher than the first reference sugar content, the fresh food (7)
  • the state index sucgar content
  • the state detector (15) is higher than the first reference sugar content
  • the fresh food (7) When the freshness of (7) decreases and the sugar content increases, it is possible to suppress the decrease in freshness of the fresh product (7) by lowering the temperature of the air in the refrigerator.
  • the environment control device (14) When the environment control device (14) performs an operation of increasing the temperature of the inside air when the state index (sugar content) detected by the state detector (15) is lower than the second reference sugar content, the fresh food (7) When the ripening of) is insufficient and the sugar content remains low, the temperature of the air in the refrigerator can be raised to promote ripening of the fresh product (7).
  • the environmental adjustment device (14) adjusts the oxygen concentration of the in-compartment air, which is the environmental index, and the state detector (15)
  • the sugar content of the fresh product (7) is detected as the state index
  • the environmental control device (14) determines that the sugar content of the fresh product (7) detected by the status detector (15) is lower than the first reference sugar content.
  • the environment control device (14) adjusts the oxygen concentration of the air in the refrigerator based on the sugar content of the fresh product (7), which is a condition indicator.
  • the environment control device (14) performs an operation of lowering the oxygen concentration of the air in the refrigerator when the state index (sugar content) detected by the state detector (15) is higher than the first reference sugar content,
  • the oxygen concentration of the air in the refrigerator can be reduced to suppress the decrease in freshness of the fresh product (7).
  • the environmental control device (14) performs an operation of increasing the oxygen concentration of the air in the refrigerator when the state index (sugar content) detected by the state detector (15) is lower than the second reference sugar content, fresh food ( When the ripening of 7) is insufficient and the sugar content remains low, it is possible to increase the oxygen concentration of the air in the refrigerator and promote the ripening of the fresh product (7).
  • the environment adjustment device (14) adjusts a carbon dioxide concentration of the in-compartment air, which is the environment index, and the state detector (15)
  • the sugar content of the fresh product (7) is detected as the state index
  • the environmental control device (14) determines that the sugar content of the fresh product (7) detected by the status detector (15) is higher than a first reference sugar content.
  • the carbon dioxide concentration of the in-compartment air is increased when it is high, and when the sugar content of the fresh product (7) detected by the state detector (15) is lower than a second reference sugar content, And at least one of the operations of lowering the carbon dioxide concentration.
  • the environment control device (14) adjusts the concentration of carbon dioxide in the air in the refrigerator based on the sugar content of the fresh product (7), which is a state indicator.
  • the environment control device (14) performs an operation of increasing the carbon dioxide concentration of the air in the refrigerator when the state index (sugar content) detected by the state detector (15) is higher than the first reference sugar content,
  • the state index sucgar content
  • the environmental control device (14) performs an operation of lowering the carbon dioxide concentration of the air in the refrigerator when the state index (sugar content) detected by the state detector (15) is lower than the second reference sugar content, When the ripening of (7) is insufficient and the sugar content remains low, it is possible to reduce the carbon dioxide concentration of the air in the refrigerator and promote the ripening of the fresh product (7).
  • the environmental adjustment device (14) adjusts the temperature of the in-compartment air, which is the environmental index, and the state detector (15) controls the freshness.
  • the environment control device (14) detects the hardness of the object (7) as the state index, and the environment control device (14) detects that the hardness of the fresh object (7) detected by the state detector (15) is lower than a first reference hardness.
  • the environment control device (14) adjusts the temperature of the air in the refrigerator based on the hardness of the fresh product (7), which is a state indicator.
  • the environment control device (14) performs an operation of lowering the temperature of the internal air when the state index (hardness) detected by the state detector (15) is lower than the first reference hardness, the freshness (7)
  • the freshness of (7) decreases and its hardness decreases, it is possible to suppress the decrease in freshness of the fresh product (7) by lowering the temperature of the air in the refrigerator.
  • the environment control device (14) performs an operation of raising the temperature of the inside air when the state index (hardness) detected by the state detector (15) is higher than the second reference hardness, the freshness (7)
  • the state index (hardness) detected by the state detector (15) is higher than the second reference hardness
  • the freshness (7) When the aging is insufficient and its hardness remains high, it is possible to raise the temperature of the air in the refrigerator and promote the aging of the fresh product (7).
  • the environmental adjustment device (14) adjusts the oxygen concentration of the in-compartment air, which is the environmental index, and the state detector (15)
  • the hardness of the fresh product (7) is detected as the state index, and the environment control device (14) determines that the hardness of the fresh product (7) detected by the state detector (15) is lower than a first reference hardness.
  • the environment control device (14) adjusts the oxygen concentration of the air in the refrigerator based on the hardness of the fresh product (7), which is a state indicator.
  • the environmental control device (14) performs an operation of lowering the oxygen concentration of the air in the refrigerator when the state index (hardness) detected by the state detector (15) is lower than the first reference hardness, the freshness ( When the freshness of (7) is lowered and its hardness is lowered, it is possible to suppress the decrease in freshness of the fresh product (7) by lowering the oxygen concentration of the air in the refrigerator.
  • the environment controller (14) performs an operation of increasing the oxygen concentration of the air in the refrigerator when the state index (hardness) detected by the state detector (15) is higher than the second reference hardness, the freshness ( When the ripening of 7) is insufficient and the hardness remains high, it is possible to increase the oxygen concentration of the air in the refrigerator and promote the ripening of the fresh product (7).
  • the environmental adjustment device (14) adjusts a carbon dioxide concentration of the in-compartment air, which is the environmental index, and the state detector (15)
  • the hardness of the fresh product (7) is detected as the condition index, and the environment control device (14) determines that the hardness of the fresh product (7) detected by the condition detector (15) is higher than a first reference hardness. And when the hardness of the fresh product (7) detected by the state detector (15) is higher than a second reference hardness, And at least one of the operations of lowering the carbon dioxide concentration.
  • the environment control device (14) adjusts the carbon dioxide concentration of the air in the refrigerator based on the hardness of the fresh product (7), which is a state indicator.
  • the environmental control device (14) performs an operation of increasing the carbon dioxide concentration of the air in the refrigerator when the state index (hardness) detected by the state detector (15) is lower than the first reference hardness, a fresh product
  • the carbon dioxide concentration of the air in the refrigerator can be raised to suppress a decrease in freshness of the fresh product (7).
  • the environment control device (14) performs an operation of lowering the carbon dioxide concentration of the air in the refrigerator when the state index (hardness) detected by the state detector (15) is higher than the second reference hardness, a fresh product
  • the concentration of carbon dioxide in the air in the refrigerator can be reduced to promote the ripening of the fresh product (7).
  • the environment control device (14) adjusts the temperature of the in-compartment air, which is the environmental index, and the state detector (15) controls the freshness.
  • the environmental control device (14) detects the internal ethylene concentration of the perishable object as the state index, and the environmental control device (14) determines that the internal ethylene concentration of the perishable object (7) detected by the state detector (15) is lower than a first reference concentration.
  • the environment control device (14) adjusts the temperature of the indoor air based on the internal ethylene concentration of the fresh product (7), which is a state indicator.
  • the environment control device (14) performs an operation of lowering the temperature of the inside air when the state index (internal ethylene concentration) detected by the state detector (15) is higher than the first reference concentration,
  • the state index internal ethylene concentration
  • the environment control device (14) performs an operation of increasing the temperature of the inside air when the state index (internal ethylene concentration) detected by the state detector (15) is lower than the second reference concentration, When the maturation of (7) is insufficient and the internal ethylene concentration remains low, it is possible to raise the temperature of the air in the refrigerator and promote the maturation of the fresh product (7).
  • the environment control device (14) adjusts the oxygen concentration of the in-compartment air, which is the environment index, and the state detector (15)
  • the internal ethylene concentration of the fresh product (7) is detected as the state index
  • the environmental control device (14) detects the internal ethylene concentration of the fresh product (7) detected by the state detector (15) as a first value.
  • the environment control device (14) adjusts the oxygen concentration of the indoor air based on the internal ethylene concentration of the perishable (7), which is a state indicator.
  • the environment control device (14) performs an operation of lowering the oxygen concentration of the air in the refrigerator when the state index (internal ethylene concentration) detected by the state detector (15) is higher than the first reference concentration,
  • the oxygen concentration of the inside air can be reduced to suppress a decrease in freshness of the fresh product (7).
  • the environment control device (14) performs an operation of increasing the oxygen concentration of the air in the refrigerator when the state index (internal ethylene concentration) detected by the state detector (15) is lower than the second reference concentration, When the maturation of the product (7) is insufficient and the internal ethylene concentration remains low, it is possible to increase the oxygen concentration of the air in the refrigerator and promote the maturation of the fresh product (7).
  • the environmental adjustment device (14) adjusts a carbon dioxide concentration of the in-compartment air, which is the environmental index, and the state detector (15)
  • the internal ethylene concentration of the fresh product (7) is detected as the state index, and the environmental control device (14) determines that the internal ethylene concentration of the fresh product (7) detected by the state detector (15) is the first.
  • An operation of increasing the carbon dioxide concentration of the air in the refrigerator when the concentration is higher than the reference concentration, and the internal ethylene concentration of the perishables (7) detected by the state detector (15) is lower than the second reference concentration.
  • at least one of the operation of lowering the concentration of carbon dioxide in the inside air is performed.
  • the environment control device (14) adjusts the concentration of carbon dioxide in the air in the refrigerator based on the concentration of ethylene in the fresh product (7), which is a state indicator.
  • the environment control device (14) performs an operation to increase the carbon dioxide concentration of the air in the refrigerator when the state index (internal ethylene concentration) detected by the state detector (15) is higher than the first reference concentration.
  • the environment control device (14) performs an operation of lowering the carbon dioxide concentration of the inside air when the state index (internal ethylene concentration) detected by the state detector (15) is lower than the second reference concentration,
  • the state index internal ethylene concentration
  • the maturation of the fresh product (7) can be promoted by lowering the carbon dioxide concentration of the air in the refrigerator.
  • the environmental adjustment device (14) adjusts the temperature of the in-compartment air, which is the environmental index, and the state detector (15) controls the freshness.
  • the K value which is the ratio of HxR (inosine) and Hx (hypoxanthine) among the ATP-related compounds contained in the product (7), is detected as the state index, and the environment control device (14) is configured to detect the state detector. (15) an operation of lowering the temperature of the in-compartment air when the K value of the fresh product (7) detected is higher than a first reference K value, and the freshness detected by the state detector (15).
  • the K value of the object (7) is lower than the second reference K value, at least one of the operation of increasing the temperature of the in-compartment air is performed.
  • the environment control device (14) adjusts the temperature of the air in the refrigerator based on the K value of the perishable (7), which is a state index.
  • the environment control device (14) performs an operation of lowering the temperature of the inside air when the state index (K value) detected by the state detector (15) is higher than the first reference K value,
  • K value state index
  • the freshness of (7) decreases and the K value increases, it is possible to suppress the decrease in freshness of the fresh product (7) by lowering the temperature of the air in the refrigerator.
  • the environment control device (14) adjusts the temperature, the oxygen concentration, and the carbon dioxide concentration of the in-compartment air, which are the environmental indicators, and detects the state.
  • the device (15) detects the sugar content of the fresh product (7) as the state index
  • the environmental control device (14) detects the sugar content of the fresh product (7) detected by the condition detector (15).
  • the environment control device (14) is configured to determine the temperature of the in-compartment air, the oxygen concentration of the in-compartment air, and the carbon dioxide in the in-compartment air based on the sugar content of the fresh product (7), which is a state indicator. And at least two of the concentrations. According to this aspect, when the freshness of the fresh product (7) is reduced and its sugar content is increased, the environmental index can be adjusted so that the freshness of the fresh product (7) is suppressed from being reduced. .
  • the environment control device (14) adjusts the temperature, oxygen concentration, and carbon dioxide concentration of the in-compartment air, which are the environmental indicators, and
  • the device (15) detects the sugar content of the fresh product (7) as the state index
  • the environmental control device (14) detects the sugar content of the fresh product (7) detected by the condition detector (15). Raising the temperature of the in-compartment air when the sugar content is lower than the reference sugar content; and performing the operation when the sugar content of the fresh product (7) detected by the state detector (15) is lower than the reference sugar content.
  • At least one of an operation of increasing the oxygen concentration and an operation of decreasing the carbon dioxide concentration of the in-compartment air when the sugar content of the fresh product (7) detected by the state detector (15) is lower than the reference sugar content. It does two things.
  • the environment control device (14) is configured to determine the temperature of the in-compartment air, the oxygen concentration of the in-compartment air, and the carbon dioxide in the in-compartment air based on the sugar content of the fresh product (7), which is a state indicator. And at least two of the concentrations. According to this aspect, it is possible to adjust the environmental index so that the ripening of the fresh product (7) is promoted when the ripening of the fresh product (7) is insufficient and the sugar content remains low.
  • the environment control device (14) adjusts the temperature, the oxygen concentration, and the carbon dioxide concentration of the indoor air, which are the environmental indicators, and
  • the device (15) detects the hardness of the perishables (7) as the state index, and the environmental control device (14) detects the hardness of the perishables (7) detected by the state detector (15).
  • the operation of lowering the temperature of the cold air is lower than the reference hardness.
  • the environment control device (14) is configured to determine the temperature of the in-compartment air, the oxygen concentration of the in-compartment air, and the carbon dioxide in the in-compartment air based on the hardness of the perishable (7), which is a state indicator. And at least two of the concentrations. According to this aspect, when the freshness of the fresh product (7) decreases and its hardness decreases, it is possible to adjust the environmental index so that the freshness of the fresh product (7) is suppressed from decreasing. .
  • the environmental control device (14) adjusts the temperature, the oxygen concentration, and the carbon dioxide concentration of the in-compartment air, which are the environmental indicators, and detects the state.
  • the device (15) detects the hardness of the perishables (7) as the state index
  • the environmental control device (14) detects the hardness of the perishables (7) detected by the state detector (15).
  • An operation of increasing the temperature of the inside air when the hardness is higher than a reference hardness, and an operation of increasing the temperature of the inside air when the hardness of the fresh product (7) detected by the state detector (15) is higher than the reference hardness.
  • At least one of an operation of increasing the oxygen concentration and an operation of decreasing the carbon dioxide concentration of the inside air when the hardness of the perishables (7) detected by the state detector (15) is higher than the reference hardness. It does two things.
  • the environment control device (14) is configured to determine the temperature of the in-compartment air, the oxygen concentration of the in-compartment air, and the carbon dioxide in the in-compartment air based on the hardness of the perishable (7), which is a state indicator. And at least two of the concentrations. According to this aspect, it is possible to adjust the environmental index so that the ripening of the fresh product (7) is promoted when the ripening of the fresh product (7) is insufficient and its hardness remains high.
  • the environment control device (14) adjusts the temperature, the oxygen concentration, and the carbon dioxide concentration of the in-compartment air, which are the environmental indicators, and
  • the device (15) detects the internal ethylene concentration of the perishables (7) as the state index, and the environmental control device (14) detects the ethylene content of the perishables (7) detected by the state detector (15).
  • the operation of lowering the temperature of the air in the refrigerator and when the internal ethylene concentration of the perishables (7) detected by the state detector (15) is higher than the reference concentration The operation of lowering the oxygen concentration of the air in the refrigerator, and the concentration of carbon dioxide in the air in the refrigerator when the internal ethylene concentration of the fresh product (7) detected by the state detector (15) is higher than the reference concentration. At least two of Is what you do.
  • the environment control device (14) is configured to determine the temperature of the in-compartment air, the oxygen concentration of the in-compartment air, and the Adjust at least two of the carbon dioxide concentrations. According to this aspect, when the freshness of the fresh product (7) decreases and the internal ethylene concentration increases, it is possible to adjust the environmental index so that the decrease in freshness of the fresh product (7) is suppressed. It becomes.
  • the environment control device (14) adjusts the temperature, the oxygen concentration, and the carbon dioxide concentration of the indoor air, which are the environmental indicators, and
  • the device (15) detects the internal ethylene concentration of the perishables (7) as the state index, and the environmental control device (14) detects the ethylene content of the perishables (7) detected by the state detector (15).
  • the internal ethylene concentration is lower than the reference concentration
  • the operation of increasing the temperature of the inside air is performed, and when the internal ethylene concentration of the perishables (7) detected by the state detector (15) is lower than the reference concentration.
  • the operation of increasing the oxygen concentration of the air in the refrigerator, and the concentration of carbon dioxide in the air in the refrigerator when the internal ethylene concentration of the fresh product (7) detected by the state detector (15) is lower than the reference concentration Do at least two of the actions It is.
  • the environment control device (14) is configured to determine the temperature of the in-compartment air, the oxygen concentration of the in-compartment air, and the Adjust at least two of the carbon dioxide concentrations. According to this aspect, it is possible to adjust the environmental index so that the ripening of the fresh product (7) is promoted when the ripening of the fresh product (7) is insufficient and the internal ethylene concentration is kept low. Become.
  • FIG. 1 is a schematic cross-sectional view of a container refrigeration device of a storage environment control system of a first embodiment and a transport container to which the refrigeration device is attached.
  • FIG. 2 is a piping diagram of a refrigerant circuit provided in the container refrigeration apparatus of the in-compartment environment control system of the first embodiment.
  • FIG. 3 is a block diagram illustrating a configuration of the control device according to the first embodiment.
  • Embodiment 1 ⁇ Embodiment 1 >> Embodiment 1 will be described.
  • the in-compartment environment control system (10) of the present embodiment includes a container refrigeration device (20), an air composition control device (40), a control device (50), An index sensor (15).
  • the storage environment control system (10) is provided in a transport container (1) for carrying out so-called CA (Controlled Atmosphere) transport.
  • CA Controlled Atmosphere
  • the container refrigeration unit (20), air composition control unit (40), and control unit (50) constitute an environment control unit (14).
  • the environment control device (14) controls the environment inside the warehouse of the shipping container (1) so that the environment inside the warehouse becomes the set environment.
  • the environment control device (14) sets the environmental index (for example, temperature, humidity, oxygen concentration, carbon dioxide concentration, etc. of the air in the warehouse), which is a physical quantity indicating the environment inside the warehouse of the shipping container (1), as the set value. Control the environment inside the shipping container (1) so that
  • the transport container (1) provided with the indoor environment control system (10) of the present embodiment is used for transporting perishables (7).
  • the perishables (7) to be transported by the transport container (1) are mainly fruits and vegetables such as fruits and vegetables.
  • the container body (2) of the transport container (1) which is a storage, is formed in an elongated rectangular parallelepiped box shape. One end face of the container body (2) is open, and a container refrigeration device (20) is attached so as to close this open end.
  • the interior space of the container body (2) forms a luggage compartment (5) for storing cargo (6).
  • Cargo (6) is perishable (7) packed in a box.
  • a floor plate (3) for placing cargo (6) is placed at the bottom of the cargo compartment (5).
  • an underfloor flow path (4) for flowing the air blown out by the container refrigeration system (20) is formed between the floor plate (3) and the bottom plate of the container body (2).
  • the underfloor flow path (4) is a flow path that extends along the bottom plate of the container body (2) in the longitudinal direction of the container body (2).
  • One end of the underfloor flow path (4) is connected to the outlet (34) of the container refrigeration system (20), and the other end is a space above the floorboard (3) (that is, a space in which the cargo (6) is stored). ).
  • the container refrigeration apparatus (20) includes a casing (30), a refrigerant circuit (21) for performing a refrigeration cycle, an external fan (26), and an internal fan (27). .
  • the casing (30) includes a casing body (31) and a back plate (32).
  • the casing (30) is provided with a refrigerant circuit (21), an external fan (26), and an internal fan (27).
  • the casing body (31) has a lower part that is recessed toward the cargo room (5) of the shipping container (1).
  • the lower part of the casing body (31) forms an external equipment room (35) communicating with the external space of the shipping container (1).
  • An external fan (26) is arranged in the external equipment room (35).
  • the back plate (32) is a substantially rectangular plate-shaped member.
  • the rear plate (32) is disposed closer to the cargo room (5) of the transport container (1) than the casing body (31), and forms an in-compartment air flow path (36) with the casing body (31). I do.
  • the upper end of the in-compartment air flow path (36) constitutes a suction port (33) of the casing (30), and the lower end constitutes an outlet (34) of the casing (30).
  • the in-compartment air flow path (36) communicates with the luggage compartment (5) via the suction port (33), and communicates with the underfloor flow path (4) via the outlet (34).
  • An in-compartment fan (27) is arranged above the in-compartment air flow path (36).
  • the refrigerant circuit (21) is formed by connecting a compressor (22), a condenser (23), an expansion valve (24), and an evaporator (25) with piping. Closed circuit.
  • the compressor (22) When the compressor (22) is operated, the refrigerant circulates through the refrigerant circuit (21), and a vapor compression refrigeration cycle is performed.
  • the condenser (23) is arranged on the suction side of the external fan (26) in the external equipment room (35), and the evaporator (25) is connected to the internal air flow path (36). Is disposed below the internal fan (27).
  • the compressor (22) is arranged in the external equipment room (35).
  • the container refrigeration system (20) includes a refrigerator temperature sensor (37) and a refrigerator humidity sensor (38).
  • the in-compartment temperature sensor (37) and the in-compartment humidity sensor (38) are arranged upstream of the evaporator (25) in the in-compartment air flow path (36).
  • the in-compartment temperature sensor (37) measures the temperature of the in-compartment air sucked into the in-compartment air flow path (36) from the suction port (33).
  • the in-compartment humidity sensor (38) measures the relative humidity of the in-compartment air drawn into the in-compartment air flow path (36) from the suction port (33).
  • the temperature of the inside air measured by the inside temperature sensor (37) and the relative humidity of the inside air measured by the inside humidity sensor (38) are environmental indicators that are physical quantities indicating the inside environment.
  • the air composition adjusting device (40) is a device for adjusting the composition of air in the shipping container (1). As shown in FIG. 1, the air composition adjusting device (40) includes a main unit (41) and a ventilation exhaust pipe (45). The main unit (41) is installed in the external equipment room (35) of the container refrigeration system (20).
  • the main unit (41) of the air composition adjusting device (40) includes two adsorption cylinders, a pressurizing pump for supplying pressurized air to the adsorption cylinder, and a decompression pump for sucking air from the adsorption cylinder. And are accommodated.
  • the air composition adjusting device (40) uses a so-called PSA (Pressure Swing Adsorption) method to generate modified air having a composition different from that of the outside air, using the outside air (that is, the atmosphere) as a raw material. This modified air has a higher nitrogen concentration than the outside air and a lower oxygen concentration than the outside air.
  • PSA Pressure Swing Adsorption
  • the main unit (41) includes an outside air inlet (42) for taking in outside air into the main unit (41). Further, a supply pipe (43) and an oxygen discharge pipe (44) are connected to the main unit (41).
  • the supply pipe (43) is a pipe for introducing the corrected air (low oxygen concentration air) generated in the main unit (41) into the luggage compartment (5), and has a terminal at the end thereof.
  • Open to The oxygen discharge pipe (44) is a pipe for discharging the high-oxygen-concentration air generated in the main unit (41) to the outside of the refrigerator, and the end of the oxygen discharge pipe (44) is open to the outside-compartment equipment room (35).
  • the ventilation exhaust pipe (45) is a pipe for discharging the air inside the storage container (1) to the outside of the storage. One end of the ventilation exhaust pipe (45) opens to the inside air flow path (36), and the other end opens to the outside equipment room (35).
  • the ventilation exhaust pipe (45) is provided with a ventilation exhaust valve (46).
  • the ventilation exhaust valve (46) is an on-off valve including an electromagnetic valve.
  • the air composition adjusting device (40) includes an oxygen concentration sensor (47) and a carbon dioxide concentration sensor (48).
  • the oxygen concentration sensor (47) and the carbon dioxide concentration sensor (48) are arranged on the upstream side of the evaporator (25) in the internal air flow path (36).
  • the oxygen concentration sensor (47) measures the oxygen concentration of the internal air sucked into the internal air passage (36) from the suction port (33).
  • the carbon dioxide concentration sensor (48) measures the carbon dioxide concentration of the air in the refrigerator sucked from the suction port (33) into the air passage (36) in the refrigerator.
  • the oxygen concentration of the inside air measured by the oxygen concentration sensor (47) and the carbon dioxide concentration of the inside air measured by the carbon dioxide concentration sensor (48) are environmental indicators that are physical quantities indicating the inside environment.
  • the state index sensor (15) is a sensor that measures a state index that is a physical quantity indicating the freshness of the fresh product (7).
  • This state index sensor (15) is a state detector.
  • the state index sensor (15) measures the sugar content of the fresh product (7) as a state index.
  • a near-infrared spectrometer that irradiates the target with near-infrared rays and measures the sugar content of the target based on the wavelength of the near-infrared absorbed by the target can be used.
  • the indoor environment control system (10) of the present embodiment includes a plurality (three in FIG. 1) of state index sensors (15).
  • the state index sensor (15) is provided for each of a plurality (three in FIG. 1) of cargoes (6) arranged at different positions.
  • the control device (50) includes an arithmetic processing unit (60), a memory unit (70), and a communication unit (80).
  • the control device (50) is configured to control the container refrigeration device (20) and the air composition adjustment device (40) such that the environment inside the shipping container (1) becomes the set environment. That is, the control device (50) sets the environmental index (in the present embodiment, the temperature of the in-compartment air, the oxygen concentration, and the carbon dioxide concentration), which is a physical quantity indicating the in-compartment environment of the shipping container (1), as the set value.
  • the container refrigeration device (20) and the air composition control device (40) are controlled.
  • the arithmetic processing unit (60) is, for example, a microprocessor composed of an integrated circuit.
  • the arithmetic processing unit (60) functions as an internal temperature control unit (61), an air composition control unit (62), and a set value control unit (63).
  • the refrigerator temperature control section (61) controls the container refrigeration system (20) such that the temperature of the refrigerator air in the transport container (1) becomes the set temperature.
  • the set value adjusting unit (63) converts the set temperature, the O 2 set concentration, and the CO 2 set concentration into a state index (in this embodiment, the sugar content of the fresh product (7)) measured by the state index sensor (15). Adjust based on.
  • the operations of the in-compartment temperature control section (61), the air composition control section (62), and the set value control section (63) will be described later in detail.
  • the memory unit (70) is a semiconductor memory composed of, for example, an integrated circuit.
  • the memory unit (70) stores a program for causing the control device (50) to execute a predetermined operation and data necessary for the operation of the control device (50). Further, the memory unit (70) functions as a set value storage section (71) and a reference value storage section (72).
  • Set value storage unit (71) stores the set temperature, O 2 set concentration, and CO 2 nominal concentrations.
  • the reference value storage unit (72) stores the first reference sugar content and the second reference sugar content used in the operation of the set value adjustment unit (63).
  • the communication unit (80) is configured to perform wired communication with the container refrigeration device (20), the air composition adjusting device (40), and the state indicator sensor (15).
  • the communication unit (80) functions as a data acquisition unit (81) and an output unit (82).
  • the data acquisition unit (81) includes a measurement value of the inside temperature sensor (37), a measurement value of the inside humidity sensor (38), a measurement value of the oxygen concentration sensor (47), and a carbon dioxide concentration sensor (48). And the measurement value of the state index sensor (15), and transmits the received measurement value to the arithmetic processing unit (60).
  • the output unit (82) outputs an operation command to the container refrigeration device (20) and an operation command to the air composition adjusting device (40).
  • control device The operations performed by the in-compartment temperature control unit (61), the air composition control unit (62), and the set value control unit (63) of the control device (50) will be described.
  • the in-compartment temperature control unit (61) controls the container refrigeration system (20) such that the temperature of the cargo room (5) of the transport container (1) (that is, the temperature of the in-compartment air) becomes the set temperature. I do.
  • the internal temperature control section (61) reads the measured value Tr of the internal temperature sensor (37) acquired by the data acquisition section (81) and the set temperature Ts stored in the set value storage section (71). Then, the internal temperature control section (61) sets the measured value Tr of the internal temperature sensor (37) to a value within a set temperature range including the set temperature Ts (Ts ⁇ 1 ° C. in the present embodiment). The rotation speed of the compressor (22) of the container refrigeration system (20) is adjusted.
  • the inside temperature control unit (61) issues an operation command to increase the rotation speed of the compressor (22). Is transmitted from the output unit (82) to the container refrigeration system (20). In the container refrigeration system (20) that has received the operation command, the rotation speed of the compressor (22) increases, and the cooling capacity of the container refrigeration system (20) increases.
  • the inside temperature control unit (61) reduces the rotation speed of the compressor (22).
  • the operation command is transmitted from the output unit (82) to the container refrigeration system (20).
  • the rotation speed of the compressor (22) decreases, and the cooling capacity of the container refrigeration apparatus (20) decreases.
  • Air composition control section controls the composition of the air (specifically, the oxygen concentration and the carbon dioxide concentration of the air in the refrigerator) in the cargo room (5) of the transport container (1) to the set concentration. And controlling the air composition adjusting device (40).
  • the air composition adjusting section (62) reads the measured value ⁇ or of the oxygen concentration sensor (47) and the measured value ⁇ cr of the carbon dioxide concentration sensor (48) acquired by the data acquiring section (81). Then, the internal temperature control unit (61), the measurement value ⁇ or of the oxygen concentration sensor (47) (in the present embodiment, ⁇ os ⁇ 0.5%) O 2 set concentration range that includes the O 2 nominal concentration Faios within is the value, CO 2 set concentration range measurements ⁇ cr comprises CO 2 nominal concentration Faics carbon dioxide concentration sensor (48) (in this embodiment, ⁇ cs ⁇ 0.5%) to a value within, air composition
  • the supply of the correction air from the adjusting device (40) into the cargo room (5) is interrupted, and the ventilation exhaust valve (46) is opened and closed.
  • the air composition adjusting device (40) that has received the operation command generates corrected air (low oxygen concentration air) and supplies it to the luggage compartment (5) to open the ventilation exhaust valve (46).
  • the air in the luggage compartment (5) is replaced with the corrected air, and the oxygen concentration of the air in the refrigerator decreases.
  • air composition adjustment unit (62 ) Transmits an operation command to open the ventilation exhaust valve (46) by supplying the corrected air or the outside air from the output unit (82) to the air composition adjusting device (40).
  • the air composition adjusting device (40) that has received the operation command supplies the modified air or the outside air (that is, the atmosphere) to the luggage compartment (5) and opens the ventilation exhaust valve (46).
  • the corrected air or the outside air having a higher oxygen concentration than the inside air is supplied into the luggage compartment (5), and the oxygen concentration in the inside air increases.
  • air composition adjusting unit (62) An operation command to stop the supply of the correction air and close the ventilation exhaust valve (46) is transmitted from the output unit (82) to the air composition adjusting device (40).
  • the air composition adjusting device (40) that has received the operation command stops the supply of the corrected air to the luggage compartment (5) and closes the ventilation exhaust valve (46).
  • air composition adjusting unit (62) Transmits an operation command to open the ventilation exhaust valve (46) by supplying the corrected air from the output unit (82) to the air composition adjusting device (40).
  • the air composition adjusting device (40) that has received the operation command supplies the corrected air to the cargo room (5) and opens the ventilation exhaust valve (46).
  • the carbon dioxide concentration of the corrected air is comparable to the atmospheric carbon dioxide concentration (about 0.03%). Therefore, in this case, the corrected air having a lower carbon dioxide concentration than the in-compartment air is supplied into the luggage compartment (5), and the in-compartment air has a reduced carbon dioxide concentration.
  • air composition adjusting unit ( The air composition adjusting unit (62) transmits an operation command to stop the supply of the corrected air and close the ventilation exhaust valve (46) from the output unit (82) to the air composition adjusting device (40). .
  • the air composition adjusting device (40) that has received the operation command stops the supply of the corrected air to the luggage compartment (5) and closes the ventilation exhaust valve (46). Then, since the fresh product (7) breathes and discharges carbon dioxide, the concentration of carbon dioxide in the air in the refrigerator increases.
  • the set value adjusting section (63) reads the measurement value of the state index sensor (15) obtained by the data obtaining section (81) (in this embodiment, the measured value of the sugar content of the fresh product (7)).
  • the indoor environment control system (10) of the present embodiment includes the plurality of state index sensors (15). Therefore, the set value adjusting unit (63) sets the value obtained by arithmetically averaging the measured values of the state index sensors (15) as the state index measured value Mf.
  • the first reference sugar content Rs1 is higher than the second reference sugar content Rs2 (Rs1> Rs2).
  • the sugar content of fruits and vegetables gradually increases as the freshness of the fruits and vegetables decreases (that is, as the fruits and vegetables ripen).
  • the freshness of fruits and vegetables decreases with an increase in the ambient temperature, progresses with an increase in the oxygen concentration of the ambient atmosphere, and advances with a decrease in the carbon dioxide concentration of the ambient atmosphere.
  • the set value adjusting unit (63) lowers the set temperature Ts, lowering the O 2 nominal concentrations Faios, increasing the CO 2 nominal concentrations Faics.
  • the set value adjusting unit (63) raises the setting temperature Ts, increasing the O 2 nominal concentrations Faios, reducing the CO 2 nominal concentrations Faics.
  • Set value adjusting unit (63) the set temperature Ts after the change, O 2 set concentration Faios, and CO 2 nominal concentrations Faics, recorded in the set value storage unit (71). Then, the refrigerator temperature control section (61) controls the container refrigeration apparatus (20) using the changed set temperature Ts read from the set value storage section (71). Further, air composition adjusting unit (62), using the O 2 nominal concentrations ⁇ os and CO 2 nominal concentration ⁇ cs the changed read from the setting value storage unit (71) controls air composition regulating device (40).
  • the indoor environment control system (10) of the present embodiment includes an environment control device (14) and a state index sensor (15) that is a state detector.
  • the environmental control device (14) adjusts the transport container (1) so that the environmental index indicating the environment inside the storage of the “transport container (1), which is a storage for fresh food (7)” becomes a set value. Adjust the cooking environment.
  • the state index sensor (15) detects a state index indicating the state of the perishables (7) stored in the shipping container (1). Further, the environment adjustment device (14) adjusts the set value of the environment index based on the state index detected by the state detector (15).
  • the environment adjustment device (14) adjusts the set value of the environment index based on the state index detected by the state index sensor (15), and the environment index is adjusted. Adjust the inside environment of the shipping container (1) to the set value.
  • the set value of the environmental index is adjusted based on the state index of the fresh food (7) actually stored in the shipping container (1). Therefore, according to the present embodiment, it is possible to automatically bring the inside environment of the shipping container (1) closer to the environment suitable for the fresh food (7) to be stored. As a result, it is possible to reduce the man-hour required for storing the fresh food (7).
  • the set value of the environmental indicator is set to a known optimum value.
  • perishables can be stored in an appropriate state.
  • an environmental index suitable for its storage may not be known. For this reason, in the related art, there is a possibility that a fresh product whose environmental index suitable for storage is unknown cannot be stored in an appropriate state.
  • the set value adjuster (63) of the control device (50) constituting the environment adjuster (14) converts the set value of the environmental index into an actual value. It is adjusted based on the condition index of the fresh food (7) stored in the shipping container (1). Therefore, according to the present embodiment, it is possible to bring the environment inside the warehouse of the transport container (1) closer to the environment suitable for the fresh food (7) to be stored, regardless of the type of fresh food.
  • the environment control device (14) uses the temperature, oxygen concentration, and carbon dioxide concentration of the in-compartment air as environment indices, and these environmental indices are set values and Adjust the inside environment of the shipping container (1) so that
  • the state index sensor (15) detects the sugar content of the fresh product (7) as a state index.
  • the environment adjustment device (14) of the present embodiment adjusts the set value of the environment index based on the sugar content of the fresh product (7) detected by the state index sensor (15).
  • the container refrigeration system (20) of the environment control device (14) is configured to control the temperature of the indoor air, which is an environmental index, to a set value.
  • the temperature is adjusted, and the state index sensor (15) detects the sugar content of the fresh product (7) as the state index.
  • the set value adjusting section (63) of the control device (50) constituting the environment adjusting device (14) determines that the sugar content of the fresh product (7) detected by the state index sensor (15) is lower than the first reference sugar content.
  • the set value adjustment unit (63) of the control device (50) constituting the environment adjustment device (14) adjusts the sugar content of the fresh product (7) as the state index. Based on this, the set value of the temperature of the inside air is adjusted.
  • the temperature of the air in the refrigerator can be reduced to suppress the decrease in freshness of the fresh product (7).
  • the freshness (7) is insufficiently matured and its sugar content remains low, it is possible to increase the temperature of the air in the refrigerator and promote the aging of the freshness (7).
  • the in-compartment air conditioner (40) of the environment controller (14) is controlled so that the oxygen concentration of the in-compartment air, which is an environmental index, becomes a set value.
  • the state index sensor (15) detects the sugar content of the fresh product (7) as a state index.
  • the set value adjusting unit (63) of the control device (50) constituting the environment adjusting device (14) is configured such that the sugar content of the fresh product (7) detected by the state index sensor (15) is higher than the first reference sugar content.
  • the set value adjustment unit (63) of the control device (50) constituting the environment adjustment device (14) adjusts the sugar content of the fresh product (7) as the state index. Based on this, the set value of the oxygen concentration of the inside air is adjusted.
  • the oxygen concentration of the air in the refrigerator can be reduced to suppress the decrease in freshness of the fresh product (7).
  • the freshness (7) is insufficiently matured and its sugar content remains low, it is possible to increase the oxygen concentration of the air in the refrigerator and promote the maturation of the freshness (7).
  • the air composition adjusting device (40) of the environment adjusting device (14) is controlled so that the carbon dioxide concentration of the indoor air, which is an environmental index, becomes a set value.
  • the concentration of carbon dioxide in the air is adjusted, and the state index sensor (15) detects the sugar content of the fresh product (7) as the state index.
  • the set value adjusting section (63) of the control device (50) provided in the environment adjusting device (14) determines that the sugar content of the fresh product (7) detected by the state index sensor (15) is lower than the first reference sugar content.
  • the set value adjustment unit (63) of the control device (50) constituting the environment adjustment device (14) adjusts the sugar content of the fresh product (7) as the state index. Based on this, the set value of the carbon dioxide concentration of the air in the refrigerator is adjusted. As a result, when the freshness of the fresh product (7) decreases and the sugar content increases, it is possible to suppress the decrease in freshness of the fresh product (7) by raising the carbon dioxide concentration of the air in the refrigerator. Further, when the ripening of the fresh product (7) is insufficient and the sugar content thereof remains low, the aging of the fresh product (7) can be promoted by lowering the carbon dioxide concentration of the air in the refrigerator.
  • the container refrigeration system (20) of the environment control device (14) is configured to control the temperature of the indoor air, which is an environmental index, to a set value.
  • the temperature is adjusted, and the air composition adjusting device (40) of the environment adjusting device (14) is operated to adjust the oxygen concentration of the air in the refrigerator so that the oxygen concentration and the carbon dioxide concentration of the indoor air, which are environmental indicators, become the respective set values.
  • the state index sensor (15) detects the sugar content of the fresh product (7) as the state index.
  • the set value adjusting unit (63) of the control device (50) constituting the environment adjusting device (14) is configured such that the sugar content of the fresh product (7) detected by the state index sensor (15) is higher than the first reference sugar content.
  • the set value of the temperature of the inside air is lowered, and the set value of the oxygen concentration of the inside air when the sugar content of the fresh product (7) detected by the state index sensor (15) is higher than the first reference sugar content
  • the set value adjustment unit (63) of the control device (50) constituting the environment adjustment device (14) adjusts the sugar content of the fresh product (7) as the state index. Based on this, the set value of the temperature of the inside air, the set value of the oxygen concentration of the inside air, and the set value of the carbon dioxide concentration of the inside air are adjusted. As a result, when the freshness of the fresh product (7) decreases and its sugar content increases, it is possible to adjust the set value of the environmental index so that the decrease in freshness of the fresh product (7) is suppressed. Become.
  • the container refrigeration system (20) of the environment control device (14) is configured to control the temperature of the indoor air, which is an environmental index, to a set value.
  • the temperature is adjusted, and the air composition adjusting device (40) of the environment adjusting device (14) is operated to adjust the oxygen concentration of the air in the refrigerator so that the oxygen concentration and the carbon dioxide concentration of the indoor air, which are environmental indicators, become the respective set values.
  • the state index sensor (15) detects the sugar content of the fresh product (7) as the state index.
  • the set value adjusting section (63) of the control device (50) constituting the environment adjusting device (14) is configured such that the sugar content of the fresh product (7) detected by the state index sensor (15) is lower than the second reference sugar content.
  • the set value adjustment unit (63) of the control device (50) constituting the environment adjustment device (14) adjusts the sugar content of the fresh product (7) as the state index. Based on this, the set value of the temperature of the inside air, the set value of the oxygen concentration of the inside air, and the set value of the carbon dioxide concentration of the inside air are adjusted. As a result, when the ripening of the fresh product (7) is insufficient and its sugar content remains low, it is possible to adjust the set value of the environmental index so that the ripening of the fresh product (7) is promoted. .
  • Embodiment 2 will be described.
  • the in-compartment environment control system (10) of the present embodiment is obtained by changing the control device (50) and the state index sensor (15) in the in-compartment environment control system (10) of the first embodiment.
  • the differences between the internal environment control system (10) of the present embodiment and the first embodiment will be described.
  • the state index sensor (15) of the present embodiment measures the hardness of the fresh product (7) as a state index.
  • a hardness meter using a laser Doppler method can be used as the state index sensor (15) of the present embodiment.
  • a hardness meter using the laser Doppler method irradiates a target with laser light to measure a vibration spectrum of the target, and measures the hardness of the target based on a change in the vibration spectrum.
  • the state index sensors (15) of the present embodiment are provided one by one for a plurality of cargoes (6) arranged at different positions.
  • Control device (50) of the present embodiment is different from the first embodiment in a set value adjusting unit (63) of the arithmetic processing unit (60) and a reference value storage unit (72) of the memory unit (70).
  • Set value adjusting section of the present embodiment (63), (in the present embodiment, the hardness of the perishable product (7)) state indicators state indicator sensor (15) is measured on the basis of the set temperature Ts, O 2 set concentration Faios, and configured to adjust a CO 2 nominal concentrations Faics.
  • the reference value storage unit (72) of the present embodiment stores the first reference hardness Rh1 and the second reference hardness Rh2 used in the operation of the set value adjustment unit (63).
  • the first reference hardness Rh1 is lower than the second reference hardness Rh2 (Rh1 ⁇ Rh2).
  • the set value adjustment unit (63) reads the measurement value of the state index sensor (15) acquired by the data acquisition unit (81) (in this embodiment, the measured value of the hardness of the fresh product (7)). As in the first embodiment, the set value adjustment unit (63) of the present embodiment sets a value obtained by arithmetically averaging the measured values of the state index sensors (15) as a state index measured value Mf.
  • the hardness of fruits and vegetables gradually decreases as the freshness of the fruits and vegetables decreases (that is, as the fruits and vegetables ripen).
  • the freshness of fruits and vegetables decreases with an increase in the ambient temperature, progresses with an increase in the oxygen concentration of the ambient atmosphere, and advances with a decrease in the carbon dioxide concentration of the ambient atmosphere.
  • the set value adjusting unit (63) lowers the set temperature Ts, lowering the O 2 nominal concentrations Faios, increasing the CO 2 nominal concentrations Faics.
  • the set value adjusting unit (63) as in the first embodiment, each of the set temperature Ts and O 2 set concentration ⁇ os and CO 2 set concentration Faics, predetermined value .DELTA.Ts, Derutafaios, changing only Derutafaics.
  • the set value adjusting unit (63) raises the setting temperature Ts, increasing the O 2 nominal concentrations Faios, reducing the CO 2 nominal concentrations Faics.
  • the set value adjusting unit (63) as in the first embodiment, each of the set temperature Ts and O 2 set concentration ⁇ os and CO 2 set concentration Faics, predetermined value .DELTA.Ts, Derutafaios, changing only Derutafaics.
  • the operations of the set value adjusting section (63), the internal temperature adjusting section (61), and the air composition adjusting section (62) are the same as those in the first embodiment.
  • the state index sensor (15) detects the hardness of the fresh product (7) as a state index.
  • the environment adjustment device (14) of the present embodiment adjusts the set value of the environment index based on the hardness of the fresh product (7) detected by the state index sensor (15).
  • the container refrigeration system (20) of the environment control device (14) is configured to control the temperature of the indoor air, which is an environmental index, to a set value.
  • the temperature is adjusted, and the state index sensor (15) detects the hardness of the fresh product (7) as the state index.
  • the set value adjusting section (63) of the control device (50) constituting the environment adjusting device (14) is configured such that the hardness of the fresh product (7) detected by the state index sensor (15) is lower than the first reference hardness.
  • the operation of lowering the set value of the internal air temperature when the temperature of the fresh air (7) detected by the state index sensor (15) is higher than the second reference hardness. And raising operation.
  • the set value adjustment section (63) of the control device (50) that constitutes the environment adjustment device (14) is configured to control the hardness of the fresh product (7), which is a state index. Based on this, the set value of the temperature of the inside air is adjusted. As a result, when the freshness of the fresh product (7) decreases and its hardness decreases, it is possible to reduce the temperature of the air in the refrigerator and suppress the decrease in freshness of the fresh product (7). Further, when the freshness (7) is insufficiently matured and its hardness remains high, it is possible to increase the temperature of the air in the refrigerator and promote the aging of the freshness (7).
  • the in-compartment air conditioner (40) of the environment controller (14) is controlled so that the oxygen concentration of the in-compartment air, which is an environmental index, becomes a set value.
  • the state index sensor (15) detects the hardness of the fresh product (7) as a state index.
  • the set value adjusting section (63) of the control device (50) constituting the environment adjusting device (14) is configured such that the hardness of the fresh product (7) detected by the state index sensor (15) is lower than the first reference hardness.
  • the set value adjustment section (63) of the control device (50) that constitutes the environment adjustment device (14) is configured to control the hardness of the fresh product (7), which is a state index. Based on this, the set value of the oxygen concentration of the inside air is adjusted. As a result, when the freshness of the fresh product (7) decreases and its hardness decreases, the oxygen concentration of the air in the refrigerator can be reduced to suppress the decrease in freshness of the fresh product (7). Further, when the freshness (7) is insufficiently matured and its hardness remains high, it is possible to increase the oxygen concentration of the air in the refrigerator and promote the maturation of the freshness (7).
  • the air composition adjusting device (40) of the environment adjusting device (14) is controlled so that the carbon dioxide concentration of the indoor air, which is an environmental index, becomes a set value.
  • the carbon dioxide concentration of the air is adjusted, and the state index sensor (15) detects the hardness of the fresh product (7) as a state index.
  • the set value adjusting section (63) of the control device (50) constituting the environment adjusting device (14) is configured such that the hardness of the fresh product (7) detected by the state index sensor (15) is lower than the first reference hardness.
  • the set value adjustment section (63) of the control device (50) that constitutes the environment adjustment device (14) is configured to control the hardness of the fresh product (7), which is a state index. Based on this, the set value of the carbon dioxide concentration of the air in the refrigerator is adjusted. As a result, when the freshness of the fresh product (7) is lowered and its hardness is lowered, it is possible to suppress the decrease in freshness of the fresh product (7) by raising the carbon dioxide concentration of the air in the refrigerator. In addition, when the freshness (7) is insufficiently matured and its hardness remains high, it is possible to reduce the carbon dioxide concentration of the air in the refrigerator and promote the maturation of the freshness (7).
  • the container refrigeration system (20) of the environment control device (14) is configured to control the temperature of the indoor air, which is an environmental index, to a set value.
  • the temperature is adjusted, and the air composition adjusting device (40) of the environment adjusting device (14) is operated to adjust the oxygen concentration of the air in the refrigerator so that the oxygen concentration and the carbon dioxide concentration of the indoor air, which are environmental indicators, become the respective set values.
  • the carbon dioxide concentration is adjusted, and the state index sensor (15) detects the hardness of the fresh product (7) as the state index.
  • the set value adjusting section (63) of the control device (50) constituting the environment adjusting device (14) is configured such that the hardness of the fresh product (7) detected by the state index sensor (15) is lower than the first reference hardness.
  • the set value of the temperature of the inside air is lowered, and when the hardness of the fresh product (7) detected by the state index sensor (15) is lower than the first reference hardness, the set value of the oxygen concentration of the inside air And an operation of increasing the set value of the carbon dioxide concentration of the air in the refrigerator when the hardness of the fresh product (7) detected by the state index sensor (15) is lower than the first reference hardness.
  • the set value adjustment section (63) of the control device (50) that constitutes the environment adjustment device (14) is configured to control the hardness of the fresh product (7), which is a state index. Based on this, the set value of the temperature of the inside air, the set value of the oxygen concentration of the inside air, and the set value of the carbon dioxide concentration of the inside air are adjusted. As a result, when the freshness of the fresh product (7) decreases and its hardness decreases, it is possible to adjust the set value of the environmental index so that the freshness of the fresh product (7) is suppressed from decreasing. Become.
  • the container refrigeration system (20) of the environment control device (14) is configured to control the temperature of the indoor air, which is an environmental index, to a set value.
  • the temperature is adjusted, and the air composition adjusting device (40) of the environment adjusting device (14) is operated to adjust the oxygen concentration of the air in the refrigerator so that the oxygen concentration and the carbon dioxide concentration of the indoor air, which are environmental indicators, become the respective set values.
  • the carbon dioxide concentration is adjusted, and the state index sensor (15) detects the hardness of the fresh product (7) as the state index.
  • the set value adjusting section (63) of the control device (50) constituting the environment adjusting device (14) is configured such that the hardness of the fresh object (7) detected by the state index sensor (15) is higher than the second reference hardness.
  • the set value of the temperature of the inside air is increased, and the set value of the oxygen concentration of the inside air when the hardness of the fresh product (7) detected by the state index sensor (15) is higher than the second reference hardness
  • the set value adjustment section (63) of the control device (50) that constitutes the environment adjustment device (14) is configured to control the hardness of the fresh product (7), which is a state index. Based on this, the set value of the temperature of the inside air, the set value of the oxygen concentration of the inside air, and the set value of the carbon dioxide concentration of the inside air are adjusted. As a result, when the ripening of the fresh product (7) is insufficient and its hardness remains high, it is possible to adjust the set value of the environmental index so that the ripening of the fresh product (7) is promoted. .
  • Embodiment 3 will be described.
  • the in-compartment environment control system (10) of the present embodiment is obtained by changing the control device (50) and the state index sensor (15) in the in-compartment environment control system (10) of the first embodiment.
  • the differences between the internal environment control system (10) of the present embodiment and the first embodiment will be described.
  • the state index sensor (15) of the present embodiment measures the ethylene concentration (internal ethylene concentration) inside the fresh product (7) as a state index.
  • a mid-infrared spectrometer that irradiates the target with mid-infrared light and measures the internal ethylene concentration of the target based on the wavelength of the mid-infrared light absorbed by the target is used. Can be used.
  • Control device (50) of the present embodiment is different from the first embodiment in a set value adjusting unit (63) of the arithmetic processing unit (60) and a reference value storage unit (72) of the memory unit (70).
  • the set value adjusting unit (63) of the present embodiment is configured to set temperatures Ts and O 2 based on the state index (in the present embodiment, the internal ethylene concentration of the fresh product (7)) measured by the state index sensor (15). nominal concentration Faios, and configured to adjust a CO 2 nominal concentrations Faics.
  • the reference value storage unit (72) of the present embodiment stores the first reference density Rc1 and the second reference density Rc2 used in the operation of the set value adjustment unit (63).
  • the first reference density Rc1 is higher than the second reference density Rc2 (Rc1> Rc2).
  • the set value adjustment unit (63) reads the measurement value (in the present embodiment, the measurement value of the internal ethylene concentration of the fresh product (7)) of the state index sensor (15) acquired by the data acquisition unit (81). As in the first embodiment, the set value adjustment unit (63) of the present embodiment sets a value obtained by arithmetically averaging the measured values of the state index sensors (15) as a state index measured value Mf.
  • the internal ethylene concentration of fruits and vegetables gradually increases as the freshness of the fruits and vegetables decreases (that is, as the fruits and vegetables ripen).
  • the freshness of fruits and vegetables decreases with an increase in the ambient temperature, progresses with an increase in the oxygen concentration of the ambient atmosphere, and advances with a decrease in the carbon dioxide concentration of the ambient atmosphere.
  • the set value adjusting unit (63) lowers the set temperature Ts, lowering the O 2 nominal concentrations Faios, increasing the CO 2 nominal concentrations Faics.
  • the set value adjusting unit (63) as in the first embodiment, each of the set temperature Ts and O 2 set concentration ⁇ os and CO 2 set concentration Faics, predetermined value .DELTA.Ts, Derutafaios, changing only Derutafaics.
  • the set value adjusting unit (63) raises the setting temperature Ts, increasing the O 2 nominal concentrations Faios, reducing the CO 2 nominal concentrations Faics.
  • the set value adjusting unit (63) as in the first embodiment, each of the set temperature Ts and O 2 set concentration ⁇ os and CO 2 set concentration Faics, predetermined value .DELTA.Ts, Derutafaios, changing only Derutafaics.
  • the operations of the set value adjusting section (63), the internal temperature adjusting section (61), and the air composition adjusting section (62) are the same as those in the first embodiment.
  • the state index sensor (15) detects the internal ethylene concentration of the fresh product (7) as a state index.
  • the environment adjustment device (14) of the present embodiment adjusts the set value of the environment index based on the internal ethylene concentration of the fresh product (7) detected by the state index sensor (15).
  • the container refrigeration system (20) of the environment control device (14) is configured to control the temperature of the indoor air, which is an environmental index, to a set value.
  • the temperature is adjusted, and the state index sensor (15) detects the internal ethylene concentration of the fresh product as a state index.
  • the set value adjusting section (63) of the control device (50) constituting the environment adjusting device (14) is configured to adjust the internal ethylene concentration of the perishables (7) detected by the state index sensor (15) from the first reference concentration. Lowering the set value of the internal air temperature when the temperature is high, and when the internal ethylene concentration of the perishables (7) detected by the state index sensor (15) is lower than the second reference concentration, Operation to increase the set value of.
  • the set value adjustment unit (63) of the control device (50) constituting the environment adjustment device (14) includes the internal ethylene of the fresh product (7) as a state index.
  • the set value of the temperature of the inside air is adjusted based on the concentration.
  • the in-compartment air conditioner (40) of the environment controller (14) is controlled so that the oxygen concentration of the in-compartment air, which is an environmental index, becomes a set value.
  • the state index sensor (15) detects the internal ethylene concentration of the fresh product (7) as a state index.
  • the set value adjusting section (63) of the control device (50) constituting the environment adjusting device (14) is configured to adjust the internal ethylene concentration of the perishables (7) detected by the state index sensor (15) from the first reference concentration.
  • the set value adjustment unit (63) of the control device (50) constituting the environment adjustment device (14) includes the internal ethylene of the fresh product (7) as a state index.
  • the set value of the oxygen concentration of the inside air is adjusted based on the concentration.
  • the air composition adjusting device (40) of the environment adjusting device (14) is controlled so that the carbon dioxide concentration of the indoor air, which is an environmental index, becomes a set value.
  • the carbon dioxide concentration of the air is adjusted, and the state index sensor (15) detects the internal ethylene concentration of the fresh product (7) as a state index.
  • the set value adjusting section (63) of the control device (50) constituting the environment adjusting device (14) is configured to adjust the internal ethylene concentration of the perishables (7) detected by the state index sensor (15) from the first reference concentration.
  • the set value adjustment unit (63) of the control device (50) constituting the environment adjustment device (14) includes the internal ethylene of the fresh product (7) as a state index. Based on the concentration, the set value of the concentration of carbon dioxide in the inside air is adjusted. As a result, when the freshness of the fresh product (7) decreases and the internal ethylene concentration increases, it is possible to suppress the decrease in freshness of the fresh product (7) by raising the carbon dioxide concentration of the air in the refrigerator. Become. Further, when the ripening of the fresh product (7) is insufficient and the internal ethylene concentration is kept low, the aging of the fresh product (7) can be promoted by reducing the carbon dioxide concentration of the air in the refrigerator.
  • the container refrigeration system (20) of the environment control device (14) is configured to control the temperature of the indoor air, which is an environmental index, to a set value.
  • the temperature is adjusted, and the air composition adjusting device (40) of the environment adjusting device (14) is operated to adjust the oxygen concentration of the air in the refrigerator so that the oxygen concentration and the carbon dioxide concentration of the indoor air, which are environmental indicators, become the respective set values.
  • the state index sensor (15) detects the internal ethylene concentration of the fresh product (7) as a state index.
  • the set value adjusting section (63) of the control device (50) constituting the environment adjusting device (14) is configured to adjust the internal ethylene concentration of the perishables (7) detected by the state index sensor (15) from the first reference concentration.
  • the internal temperature of the fresh air (7) detected by the state index sensor (15) is higher than the first reference concentration
  • the set value adjustment unit (63) of the control device (50) constituting the environment adjustment device (14) includes the internal ethylene of the fresh product (7) as a state index. Based on the concentration, the set value of the temperature of the inside air, the set value of the oxygen concentration of the inside air, and the set value of the carbon dioxide concentration of the inside air are adjusted. As a result, when the freshness of the fresh product (7) decreases and the internal ethylene concentration increases, the set value of the environmental index can be adjusted so as to suppress the decrease in freshness of the fresh product (7). It becomes possible.
  • the container refrigeration system (20) of the environment control device (14) is configured to control the temperature of the indoor air, which is an environmental index, to a set value.
  • the temperature is adjusted, and the air composition adjusting device (40) of the environment adjusting device (14) is operated to adjust the oxygen concentration of the air in the refrigerator so that the oxygen concentration and the carbon dioxide concentration of the indoor air, which are environmental indicators, become the respective set values.
  • the state index sensor (15) detects the internal ethylene concentration of the fresh product (7) as a state index.
  • the set value adjuster (63) of the control device (50) constituting the environmental adjuster (14) is configured to adjust the internal ethylene concentration of the perishables (7) detected by the state index sensor (15) from the second reference concentration.
  • the internal temperature of the fresh air (7) detected by the state indicator sensor (15) is lower than the second reference concentration
  • the set value adjustment unit (63) of the control device (50) constituting the environment adjustment device (14) includes the internal ethylene of the fresh product (7) as a state index. Based on the concentration, the set value of the temperature of the inside air, the set value of the oxygen concentration of the inside air, and the set value of the carbon dioxide concentration of the inside air are adjusted. As a result, when the ripening of perishables (7) is insufficient and the internal ethylene concentration remains low, it is possible to adjust the set value of the environmental index so that ripening of perishables (7) is promoted It becomes.
  • Embodiment 4 will be described.
  • the in-compartment environment control system (10) of the present embodiment is obtained by changing the control device (50) and the state index sensor (15) in the in-compartment environment control system (10) of the first embodiment. Further, in the indoor environment control system (10) of the present embodiment, the air composition adjusting device (40) is omitted.
  • the differences between the internal environment control system (10) of the present embodiment and the first embodiment will be described.
  • the transport container (1) provided with the indoor environment control system (10) of the present embodiment is used for transporting perishables (7).
  • the perishables (7) to be transported by the transport container (1) are seafood such as fish, shellfish and shellfish, and meat such as beef, pork and chicken.
  • the state index sensor (15) of the present embodiment measures the K value of the fresh product (7) as a state index.
  • a near-infrared analyzer that irradiates a target with near-infrared rays and measures the K value of the target based on the wavelength of the near-infrared rays absorbed by the target is used. be able to.
  • the K value is a ratio of HxR (inosine) and Hx (hypoxanthine) among ATP-related compounds contained in seafood and meat, which are fresh products (7).
  • the ATP-related compound is a general term for ATP (adenosine triphosphate) contained in meat and fish and seafood, and a compound generated in a process in which the ATP is decomposed by an autolyzing enzyme contained in meat and fish and seafood.
  • ATP adenosine triphosphate
  • ADP adenosine diphosphate
  • AMP adenylic acid
  • IMP inosine acid
  • HxR inosine
  • Hx hypoxanthine
  • the set value adjustment unit (63) reads the measurement value of the state index sensor (15) acquired by the data acquisition unit (81) (in the present embodiment, the measured value of the K value of the fresh product (7)). As in the first embodiment, the set value adjustment unit (63) of the present embodiment sets a value obtained by arithmetically averaging the measured values of the state index sensors (15) as a state index measured value Mf.
  • the set value adjusting section (63) also stores the set temperature Ts stored in the set value storage section (71) and the first reference K value Rk1 and the second reference K value Rk2 stored in the reference value storage section (72). Read.
  • the K value of seafood and meat gradually increases as the freshness of seafood and meat decreases (that is, as the aging of seafood and meat progresses). In general, the freshness of seafood and meat decreases more rapidly as the ambient temperature increases.
  • the set value adjusting section (63) records the changed set temperature Ts in the set value storage section (71). Then, the refrigerator temperature control section (61) controls the container refrigeration apparatus (20) using the changed set temperature Ts read from the set value storage section (71).
  • the operation of the air composition adjusting section (62) is the same as that of the first embodiment.
  • the environment control device (14) uses the temperature of the in-compartment air as an environmental index, and transports the in-compartment air temperature as an environmental index so that the temperature of the in-compartment air becomes the set value.
  • the state index sensor (15) detects the K value of the fresh product (7) as a state index.
  • the environment adjustment device (14) of the present embodiment adjusts the set value of the environment index based on the K value of the fresh product (7) detected by the state index sensor (15).
  • the container refrigeration system (20) of the environment control device (14) is configured to control the temperature of the indoor air, which is an environmental index, to a set value.
  • the temperature is adjusted, and the state index sensor (15) detects the K value, which is the ratio of HxR (inosine) and Hx (hypoxanthine), among the ATP-related compounds contained in the fresh product (7) as the state index.
  • the set value adjusting unit (63) of the control device (50) constituting the environment adjusting device (14) determines that the K value of the fresh product (7) detected by the state index sensor (15) is higher than the first reference K value. Lowering the set value of the inside air temperature when the temperature is high, and when the K value of the fresh thing (7) detected by the state index sensor (15) is lower than the second reference K value, Operation to increase the set value of.
  • the set value adjustment unit (63) of the control device (50) that constitutes the environment adjustment device (14) includes a K value of a fresh product (7) as a state index.
  • the set value of the temperature of the air in the refrigerator is adjusted based on.
  • the set value adjusting unit (63) of the arithmetic processing unit (60) sets the value based on the acidity of the fresh product (7), which is a state index.
  • temperature Ts may be configured to adjust O 2 set concentration Faios, and CO 2 nominal concentrations Faics.
  • the state index sensor (15) measures the acidity of the fresh product (7) as a state index.
  • a near-infrared analyzer that irradiates near-infrared light to the object and measures the acidity of the object based on the wavelength of near-infrared light absorbed by the object is used. Can be.
  • the acidity of fruits and vegetables gradually decreases as the freshness of the fruits and vegetables decreases (that is, as the fruits and vegetables ripen). Therefore, when the state index measurement value Mf is lower than the first reference value, the set value adjustment unit (63) of the present modification lowers the set temperature Ts in order to delay the freshness of the fresh product (7), O 2 reducing the set concentration Faios, increasing the CO 2 nominal concentrations Faics.
  • the set value adjusting section (63) of the present modified example raises the set temperature Ts in order to promote the ripening of the fresh product (7), O 2 increase the setting density Faios, reducing the CO 2 nominal concentrations Faics.
  • the set value adjusting unit (63) of the arithmetic processing unit (60) is configured based on the water content of the fresh product (7), which is a state index.
  • set temperature Ts, O 2 set concentration Faios, and CO 2 set concentration ⁇ cs may be configured to condition a.
  • the state index sensor (15) measures the water content of the fresh product (7) as a state index.
  • a near-infrared analyzer that irradiates near-infrared light to the object and measures the water content of the object based on the wavelength of the near-infrared light absorbed by the object is used. be able to.
  • the moisture content of fruits and vegetables which are a kind of fresh food, gradually decreases as the freshness of fresh food decreases (that is, as ripening of fresh food proceeds). Therefore, when the state index measurement value Mf is lower than the first reference value, the set value adjustment unit (63) of the present modification lowers the set temperature Ts in order to delay the freshness of the fresh product (7), O 2 reducing the set concentration Faios, increasing the CO 2 nominal concentrations Faics.
  • the set value adjusting section (63) of the present modified example raises the set temperature Ts in order to promote the ripening of the fresh product (7), O 2 increase the setting density Faios, reducing the CO 2 nominal concentrations Faics.
  • the set value adjustment unit (63) of the arithmetic processing unit (60) performs setting based on the color of the fresh thing (7), which is a state index.
  • temperature Ts may be configured to adjust O 2 set concentration Faios, and CO 2 nominal concentrations Faics.
  • the state index sensor (15) measures the color (specifically, color change) of the fresh product (7) as a state index.
  • a color difference meter that measures a difference in color of an object can be used.
  • the set value adjusting unit (63) of this modification example to delay the freshness reduction of perishable products (7) lowers the set temperature Ts, lowering the O 2 nominal concentrations Faios, increasing the CO 2 nominal concentrations Faics.
  • the set value adjusting unit (63) of this modification example order to accelerate ripening of perishable products (7), raising the set temperature Ts, increasing the O 2 nominal concentrations Faios, reducing the CO 2 nominal concentrations Faics.
  • the setting value adjustment unit is (63), based on the sugar content and hardness and internal ethylene concentration of perishable products (7), for adjusting the set temperature Ts, O 2 set concentration Faios, and CO 2 nominal concentrations ⁇ cs
  • the interior environment control system (10) of the present modified example will be described with reference to FIG.
  • the state index sensor (15) includes a refractometer side for measuring the sugar content of the fresh product (7) and a hardness for measuring the hardness of the fresh product (7).
  • a meter side and a densitometer side for measuring the internal ethylene concentration of the fresh product (7) are provided.
  • the set value adjusting section (63) of the arithmetic processing unit (60) indicates that “the sugar content measured by the state index sensor (15) is higher than the first reference sugar content”.
  • the set value adjustment unit (63) of the arithmetic processing unit (60) is configured to execute the processing when all of the first condition, the second condition, and the third condition are satisfied. lowers the set temperature Ts, lowering the O 2 nominal concentrations Faios, may be configured to raise the CO 2 nominal concentrations Faics.
  • the in-compartment environment control system (10) of the present modified example has a fourth condition that “the sugar content measured by the condition index sensor (15) is lower than the second reference sugar content”; When at least one of the fifth condition that “the measured hardness is higher than the second reference concentration” and the sixth condition that “the internal ethylene concentration measured by the state index sensor (15) is lower than the second reference concentration” is satisfied.
  • the fifth condition that “the measured hardness is higher than the second reference concentration” and the sixth condition that “the internal ethylene concentration measured by the state index sensor (15) is lower than the second reference concentration” is satisfied.
  • raising the set temperature Ts increasing the O 2 nominal concentrations Faios, reducing the CO 2 nominal concentrations Faics.
  • the set value adjustment unit (63) of the arithmetic processing unit (60) is configured to execute the processing when all of the fourth, fifth, and sixth conditions are satisfied. , raising the set temperature Ts, increasing the O 2 nominal concentrations Faios, may be configured to reduce the CO 2 nominal concentrations Faics.
  • the set value adjustment unit (63) of the arithmetic processing unit (60) includes a It may be configured to perform only the operation of “adjusting the set value of the environmental index to delay the decrease in freshness of the fresh product (7)”.
  • the set value adjusting unit (63) of the first embodiment to which the present modified example applies the set temperature Ts when the measured state index value Mf (sugar content) is higher than the first reference sugar content Rs1 (Mf> Rs1). lower, lower the O 2 nominal concentrations Faios, raise the CO 2 nominal concentrations Faics, when the state indicators measured value Mf (sugar content) is less than the first reference Brix Rs1 (Mf ⁇ Rs1), the set temperature Ts, O 2 set concentration Faios, and it does not change the CO 2 nominal concentrations Faics.
  • the set value adjusting section (63) of the second embodiment to which the present modified example applies the set temperature Ts when the measured state index value Mf (hardness) is lower than the first reference hardness Rh1 (Mf ⁇ Rh1). lower, lower the O 2 nominal concentrations Faios, raise the CO 2 nominal concentrations Faics, when the state indicators measured value Mf (hardness) is not less than the first reference hardness Rh1 (Mf ⁇ Rh1), set temperature Ts, O 2 set concentration Faios, and it does not change the CO 2 nominal concentrations Faics.
  • the set value adjusting unit (63) of the third embodiment to which the present modification is applied sets the set temperature when the state index measured value Mf (internal ethylene concentration) is higher than the first reference concentration Rc1 (Mf> Rc1). lower the ts, lowering the O 2 nominal concentrations Faios, raise the CO 2 nominal concentrations Faics, when the state indicators measured value Mf (internal ethylene concentration) is equal to or less than a first reference density Rc1 (Mf ⁇ Rc1), set temperature Ts, O 2 set concentration Faios, and CO 2 without changing the setting density Faics.
  • the set value adjusting unit (63) of the fourth embodiment to which the present modification is applied sets the set temperature when the state index measured value Mf (K value) is higher than the first reference K value Rk1 (Mf> Rk1).
  • the set temperature Ts is not changed.
  • the set value adjustment unit (63) of the arithmetic processing unit (60) includes a It may be configured to perform only the operation of “adjusting the set value of the environmental index to promote ripening of the fresh product (7)”.
  • the set value adjusting unit (63) of the first embodiment to which the present modified example applies the set temperature Ts when the state index measured value Mf (sugar content) is lower than the second reference sugar content Rs2 (Mf ⁇ Rs2). raised, raising the O 2 nominal concentrations Faios, reduce the CO 2 nominal concentrations Faics, when the state indicators measured value Mf (sugar content) is equal to or greater than the second reference Brix Rs2 (Mf ⁇ Rs2), the set temperature Ts, O 2 set concentration Faios, and it does not change the CO 2 nominal concentrations Faics.
  • the set value adjusting section (63) of the second embodiment to which the present modification is applied sets the set temperature Ts when the state index measured value Mf (hardness) is higher than the second reference hardness Rh2 (Mf> Rh2). It raised, raising the O 2 nominal concentrations Faios, reduce the CO 2 nominal concentrations Faics, when the state indicators measured value Mf (hardness) of the following second reference hardness Rh2 (Mf ⁇ Rh2), set temperature Ts, O 2 set concentration Faios, and it does not change the CO 2 nominal concentrations Faics.
  • the set value adjusting section (63) of the third embodiment to which the present modified example is applied sets the set temperature when the state index measured value Mf (internal ethylene concentration) is lower than the second reference concentration Rc2 (Mf ⁇ Rc2). raising Ts, raising the O 2 nominal concentrations Faios, the lower the CO 2 nominal concentrations Faics, if state index measured value Mf (internal ethylene concentration) is equal to or greater than the second reference density Rc2 (Mf ⁇ Rc2), set temperature Ts, O 2 set concentration Faios, and CO 2 without changing the setting density Faics.
  • the set value adjusting unit (63) of the fourth embodiment to which the present modification is applied increases the set temperature Ts when the state index measured value Mf is lower than the second reference K value Rk2 (Mf ⁇ Rk2), When the state index measurement value Mf is equal to or greater than the second reference K value Rk2 (Mf ⁇ Rk2), the set temperature Ts is not changed.
  • the set value adjusting unit (63) of the arithmetic processing unit (60) adjusts only the set temperature Ts based on the state index.
  • the setting value adjusting unit (63), O 2 set may be configured to adjust on the basis of only the state index concentration Faios, to adjust, based only CO 2 set concentration ⁇ cs the state index May be configured.
  • the in-compartment environment control system (10) of each of the above embodiments and modifications may include only one state index sensor (15).
  • the set value adjusting unit (63) adjusts the set value of the environmental index using the measured value of one state index sensor (15) as the state index measured value Mf.
  • the transport container (1) to which the in-compartment environment control system (10) of each of the above embodiments and modifications is attached is not limited to a marine transport container, but may be a land transport container. .
  • the installation target of these in-compartment environment control systems (10) is not limited to the transport container (1). That is, these internal environment control systems (10) may be installed in, for example, a refrigerated warehouse or a commercial refrigerator.
  • the air composition adjusting device (40) is not limited to a device that generates modified air (low oxygen concentration air) by the PSA method.
  • the air composition adjusting device (40) may be configured to generate the modified air (low oxygen concentration air) using, for example, a gas separation membrane.
  • This gas separation membrane has a characteristic that “the permeation speed of nitrogen is higher than the permeation speed of oxygen”.
  • the air composition adjusting device (40) of this modification supplies air having a high nitrogen concentration that has passed through the gas separation membrane to the cargo room (5) as corrected air, and air having a high oxygen concentration that has not passed through the gas separation membrane. To the outside of the refrigerator.
  • the present disclosure is useful for an environment control system in a refrigerator.
  • Transport container storage
  • Perishables 10
  • Environmental control system in warehouse 14
  • Environmental control device 15
  • Condition index sensor condition detector
  • Container refrigeration unit 40
  • Air composition control unit 50 Control unit

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Abstract

L'invention concerne un système de commande d'environnement interne de compartiment (10) qui est disposé dans un récipient de transport (1) et est pourvu d'un dispositif de réfrigération (20), d'un dispositif de régulation de composition d'air (40), d'un dispositif de commande et d'un capteur d'indicateur d'état (15). Une unité de régulation de température interne de compartiment du dispositif de commande commande le dispositif de réfrigération (20) de telle sorte que la température de l'air à l'intérieur du compartiment adopte une température définie. Un dispositif de régulation de composition d'air du dispositif de commande commande le dispositif de régulation de composition d'air (40) de telle sorte que la concentration en oxygène et la concentration en dioxyde de carbone de l'air dans le compartiment adoptent des concentrations définies respectives. Le dispositif de commande régule la température de l'air dans le compartiment, la concentration en oxygène et la concentration en dioxyde de carbone de l'air dans le compartiment sur la base d'un indicateur d'état (teneur en sucre, par exemple) d'aliment frais (7) mesuré par le capteur d'indicateur d'état (15).
PCT/JP2019/026608 2018-07-05 2019-07-04 Système de commande d'environnement interne de compartiment Ceased WO2020009183A1 (fr)

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JP7542853B2 (ja) * 2020-12-22 2024-09-02 株式会社Giant 鮮度管理システム、鮮度管理方法および、鮮度管理プログラム
JP7174283B2 (ja) 2021-03-31 2022-11-17 ダイキン工業株式会社 貯蔵庫、方法、およびサーバ

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JPH01301147A (ja) * 1988-05-28 1989-12-05 Mitsui Mining & Smelting Co Ltd 青果物の品質測定法およびその装置
JPH05119033A (ja) * 1991-10-29 1993-05-14 Meiji Milk Prod Co Ltd 牛肉の熟度測定方法
JPH06319490A (ja) * 1993-04-30 1994-11-22 Mutsutaa Ham:Kk 高圧ハムの製造方法及び高圧ハム
JPH07107941A (ja) * 1993-10-15 1995-04-25 Kanegafuchi Chem Ind Co Ltd 食肉製品の製造方法
JP2015515622A (ja) * 2012-03-23 2015-05-28 マサチューセッツ インスティテュート オブ テクノロジー エチレンセンサー
JP2015227820A (ja) * 2014-06-02 2015-12-17 学校法人 東洋大学 鮮度計測装置及び鮮度計測方法
JP2017108680A (ja) * 2015-12-16 2017-06-22 旭化成株式会社 青果物の保存装置及び保存方法

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JPH01301147A (ja) * 1988-05-28 1989-12-05 Mitsui Mining & Smelting Co Ltd 青果物の品質測定法およびその装置
JPH05119033A (ja) * 1991-10-29 1993-05-14 Meiji Milk Prod Co Ltd 牛肉の熟度測定方法
JPH06319490A (ja) * 1993-04-30 1994-11-22 Mutsutaa Ham:Kk 高圧ハムの製造方法及び高圧ハム
JPH07107941A (ja) * 1993-10-15 1995-04-25 Kanegafuchi Chem Ind Co Ltd 食肉製品の製造方法
JP2015515622A (ja) * 2012-03-23 2015-05-28 マサチューセッツ インスティテュート オブ テクノロジー エチレンセンサー
JP2015227820A (ja) * 2014-06-02 2015-12-17 学校法人 東洋大学 鮮度計測装置及び鮮度計測方法
JP2017108680A (ja) * 2015-12-16 2017-06-22 旭化成株式会社 青果物の保存装置及び保存方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112129025A (zh) * 2020-09-30 2020-12-25 刘慧平 一种主动式外循环智能果蔬保鲜储运子母库

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