Label, control method, and control system

Abstract

A label (40A) is provided with: a temperature indicating material (42); and an identification unit that displays identification information (47) that can be uniquely identified by the appearance. A control method in which a first food product, which is a food product to be stored in a refrigerator or a food product already stored in a refrigerator, is captured by a camera, an image of a label (40A) currently attached to the first food product is generated, and the color of a temperature indicating material (42) provided in the label (40A) which reflects the image currently generated is analyzed, the controller obtains the temperature of the first food by comparing the temperature of the first food with an appropriate temperature range in the refrigerator, generates control information for controlling refrigeration in the refrigerator by comparing the obtained temperature with the appropriate temperature range in the refrigerator, and transmits the generated control information to the refrigerator.

Description

Technical Field

[0001] The present disclosure relates to a tag, a control method, and a control system. Background Art

[0002] There is a technology for managing the identification information of stored articles by matching them with photographs of the articles inside a storage container (see, for example, Patent Document 1).

[0003] (Prior art literature)

[0004] (Patent Document)

[0005] Patent Document 1: Japanese Patent Application Publication No. 2019-191663 Summary of the invention

[0006] Problems to be solved by the invention

[0007] The present disclosure provides a label, a control method, and a control system for properly managing food stored in a refrigerator.

[0008] Means for solving problems

[0009] The label in the present disclosure is a label including a temperature indicating material and an identification portion that displays identification information that can be uniquely identified by appearance.

[0010] Effects of the Invention

[0011] The label in the present disclosure can properly manage food stored in a refrigerator. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a block diagram showing the functional configuration of the control system in the embodiment.

[0013] Figure 2 This is a schematic diagram showing a first example of a label in the embodiment.

[0014] Figure 3 This is a schematic diagram showing a second example of the label in the embodiment.

[0015] Figure 4 This is a schematic diagram showing a third example of the label in the embodiment.

[0016] Figure 5 It is a schematic diagram showing a variation of the third example of the label in the embodiment.

[0017] Figure 6 This is an explanatory diagram showing an example of the transition of the temperature of food in the embodiment.

[0018] Figure 7It is an explanatory diagram showing a table showing the edible period of food in the embodiment.

[0019] Figure 8 It is an explanatory diagram showing the first master data showing the edible period of food in the embodiment.

[0020] Fig. 9 It is an explanatory diagram showing the second master data showing the edible period of food in the embodiment.

[0021] Fig.10 It is an explanatory diagram showing the third master data showing the edible period of food in the embodiment.

[0022] Fig.11 It is an explanatory diagram showing fourth master data showing an edible period of food in the embodiment.

[0023] Fig.12 This is an explanatory diagram showing a first example of an image displayed by the control system in the embodiment.

[0024] Fig.13 It is an explanatory diagram showing a second example of an image displayed by the control system in the embodiment.

[0025] Fig.14 It is a flowchart which shows the process of the control system in embodiment. DETAILED DESCRIPTION

[0026] Regarding the management of food stored in a refrigerator described in the "Background Art" section, the inventors of the present invention have discovered the following problems.

[0027] The temperature control in the refrigerator is performed based on the temperature sensed by the temperature sensor installed in the refrigerator. Since the temperature sensor senses the temperature of the air in the refrigerator, it takes a certain amount of time from the time when food with a relatively high temperature is stored in the refrigerator until the temperature sensor senses the temperature rise. In addition, it takes further time from the time when the temperature rise is sensed to the time when the temperature in the refrigerator returns to the temperature before the temperature rise due to the refrigeration function of the refrigerator.

[0028] In this way, from the time the temperature rises when the above-mentioned food is stored in the warehouse to the time the temperature returns to the temperature before the above-mentioned food is stored in the warehouse, the temperature of other foods may rise, causing other foods stored in the warehouse to spoil (in other words, become inedible).

[0029] Thus, in the temperature control in the refrigerator by the temperature sensor provided in the refrigerator, there is a problem that the temperature of the food rises as described above.

[0030] The present disclosure provides a label, a control method, and a control system for properly managing food stored in a refrigerator.

[0031] A label according to one embodiment of the present disclosure is a label including a temperature indicating material and an identification portion that displays identification information that can be uniquely identified by appearance.

[0032] In the above manner, by performing image analysis on the image obtained by shooting and showing the label, both the temperature and identification information indicated by the label are temporarily obtained. As an example, when the food stored in the refrigerator is attached with the label, the refrigerator can be refrigerated according to the temperature indicated by the label. In this way, the label can appropriately manage the food stored in the refrigerator.

[0033] Furthermore, the temperature indicating material may include temperature indicating ink.

[0034] In the above manner, since the temperature indicating material includes the temperature indicating ink, the temperature indicating material has the effect of being easier to manufacture by printing. In addition, the temperature indicating material with rich design has the effect of being easy to manufacture and can be manufactured at a low cost. Accordingly, the above label can more easily and appropriately manage the food stored in the refrigerator.

[0035] And it may also be that the tag does not include metal.

[0036] In the above manner, since the tag does not include metal, it is possible to avoid the reflection of electromagnetic waves or the occurrence of sparks caused by metal when the microwave oven is working, and it can be used more safely. Accordingly, the above tag can manage the food stored in the refrigerator more safely and appropriately.

[0037] Furthermore, the label may include a mounting portion to be mounted on the food, or a container or packaging of the food, or the label may be a part of the container or packaging of the food.

[0038] In the above manner, the label is mounted on the food through the mounting portion or is in contact with the food as a part of the container or packaging of the food, and the label has substantially the same temperature as the food. Thus, by performing image analysis on the image of the existing label, the temperature of the food can be obtained with higher accuracy. Thus, the label can properly manage the food stored in the refrigerator by obtaining the temperature of the food with higher accuracy.

[0039] Furthermore, the tag may further include a display unit that displays a temperature that is predetermined as an upper limit temperature of food stored in the refrigerator.

[0040] In the above manner, since the label has a display unit, the user can be prompted to be careful not to store food whose temperature exceeds the upper limit temperature of food stored in the refrigerator. Accordingly, the label can not only prevent food with relatively high temperature from being stored in the refrigerator, but also properly manage the food stored in the refrigerator.

[0041] In a control method involved in one embodiment of the present invention, a first food is photographed by a camera to generate an image reflecting a label attached to the first food, the first food being a food to be stored in a refrigerator compartment or a food already stored in the refrigerator compartment, the temperature of the first food is obtained by analyzing the color of the temperature-indicating material possessed by the label reflected in the generated image, and control information for controlling refrigeration in the refrigerator compartment is generated by comparing the obtained temperature with an appropriate temperature range in the refrigerator compartment, and the generated control information is sent to the refrigerator.

[0042] By the above manner, the refrigeration control of the refrigerator can be performed according to the temperature of the food stored in the refrigerator. In this way, the above control method can appropriately manage the food stored in the refrigerator.

[0043] Furthermore, when generating the control information, if it is determined that the obtained temperature is higher than the appropriate temperature range, control information for controlling the strengthening of cooling of the refrigerator may be generated.

[0044] In the above manner, since the refrigeration of the refrigerator is strengthened when the temperature of the food is higher than the appropriate temperature range, it is not only possible to accelerate the temperature reduction of the food, but also possible to suppress the temperature rise of other foods stored in the refrigerator. Accordingly, the above control method can appropriately manage the food stored in the refrigerator by suppressing the temperature rise.

[0045] Furthermore, the refrigeration of the refrigerator may be continuously controlled by repeatedly generating and transmitting the control information based on photographing the first food stored in the refrigerator.

[0046] By the above-mentioned aspect, since the refrigeration of the refrigerator is continuously controlled, the temperature rise of the food stored in the refrigerator can be suppressed. Accordingly, the above-mentioned control method can appropriately manage the food stored in the refrigerator by suppressing the temperature rise.

[0047] Furthermore, it is also possible that the position of the label reflected in the generated image within the library is analyzed, and when generating the control information, control information for strengthening the refrigeration of the position where the label having a temperature higher than the appropriate temperature range is located is generated.

[0048] In the above manner, since the location of the food with a temperature higher than the appropriate temperature range is used to strengthen the refrigeration of the location where the food is located, it is not only possible to further accelerate the temperature reduction of the food, but also possible to suppress the temperature rise of other foods stored in the refrigerator. Accordingly, the above control method can appropriately manage the food stored in the refrigerator by suppressing the temperature rise.

[0049] It may also be possible to obtain the identification information displayed by the identification portion of the label projected in the image, generate food information, wherein the food information is information corresponding to the identification information and indicating the shelf life or best before date of the first food with the label, and perform prompt control on the food information.

[0050] In the above manner, since the shelf life or best before date (also called expiration date, etc.) of each food is prompted to the user, it not only has the effect of effectively utilizing the food by allowing the user to identify the shelf life of each food, but also has the effect of suppressing food waste. Accordingly, the above control method can effectively utilize food and suppress food waste while also properly managing the food stored in the refrigerator.

[0051] Furthermore, the identification information may be further used to obtain transition information, wherein the transition information is information showing the transition of the temperature of the first food, and the shelf life or best before date of the first food may be adjusted using the obtained transition information, and in the prompt control, the adjusted shelf life or best before date may be used to prompt the food information.

[0052] In the above manner, the expiration date and the like are adjusted according to the change in the temperature of the food stored in the refrigerator. Accordingly, for example, when the food stored in the refrigerator is placed outside the refrigerator and then stored inside the refrigerator again, the accelerated spoilage of the food can be reflected in the expiration date and the like, which helps the user to consume food safely. Accordingly, the above control method can appropriately manage the food stored in the refrigerator.

[0053] A control system involved in one embodiment of the present invention comprises: a camera unit, which photographs a first food with a camera to generate an image reflecting a label attached to the first food, wherein the first food is a food to be stored in a refrigerator or a food already stored in the refrigerator; an analysis unit, which obtains the temperature of the first food by analyzing the color of the temperature-indicating material possessed by the label reflected in the generated image; and a control unit, which generates control information for controlling the refrigeration in the refrigerator by comparing the obtained temperature with an appropriate temperature range in the refrigerator, and sends the generated control information to the refrigerator.

[0054] Through the above manner, the control system achieves the same effect as the above control method.

[0055] The following describes the embodiments in detail with reference to the accompanying drawings as appropriate. However, unnecessary detailed descriptions may be omitted. For example, detailed descriptions of well-known matters or repeated descriptions of substantially the same structures may be omitted. This is to avoid the following description from becoming too lengthy and to facilitate understanding by those skilled in the art.

[0056] In addition, the drawings and the following descriptions are provided by the inventors of the present invention to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the contents described in the scope of the technical claims.

[0057] (Implementation Method)

[0058] In this embodiment, a label, a control method, and a control system for appropriately managing foods stored in a refrigerator are described.

[0059] Figure 1 It is a block diagram showing the configuration of the control system 1 in this embodiment.

[0060] like Figure 1 As shown, the control system 1 includes a server 10, a refrigerator 20, and a terminal 30. The devices included in the control system 1 are connected via a network N so as to be communicable.

[0061] The refrigerator 20 refrigerates the food stored in the refrigerator. Here, the case where the refrigerator 20 stores food 26A and 26B (also referred to as food 26A, etc.) is described as an example. Labels 40A and 40B (also referred to as labels 40A, etc.) are attached to the food 26A and 26B, respectively. The food 26A, etc. is equivalent to the first food, respectively. In addition, the number of food 26A, etc. is not limited to 2, and can be any number greater than 1.

[0062] In addition, the term "food" refers to food that is usually stored in the refrigerator 20. More specifically, it can refer to the food itself (i.e., food not including a container or packaging), a container with food stored inside and the food, or a packaging sheet with food packaged inside and the food.

[0063] In addition, the "inside the storage" of the refrigerator 20 refers to the interior of the storage room of the refrigerator 20. More specifically, it may also refer to the interior of the cold storage room of the refrigerator 20 (the appropriate temperature range is, for example, 2°C to 5°C), the interior of the freezer room of the refrigerator 20 (the appropriate temperature range is, for example, below -18°C), or the interior of the vegetable room of the refrigerator 20 (the appropriate temperature range is, for example, 3°C to 8°C), etc.

[0064] In addition, the refrigerator 20 may also be a refrigerator with a refrigerating chamber and a freezing chamber, and may further be equipped with other storage chambers (fresh refrigerating chamber or vegetable chamber, etc.). Furthermore, the refrigerator 20 may be a refrigerator with only a refrigerating chamber, or a refrigerator with only a freezing chamber (which may also be called a freezer or a freezer cabinet). The storage chamber equipped with the refrigerator 20 may also have a door, which can be opened and closed by the door. Furthermore, the storage chamber equipped with the refrigerator 20 may also have a drawer, which can be opened or closed by the drawer.

[0065] Here, the tag 40A is described. The tag 40A is a tag used to uniquely identify the food 26A. In addition, the tag 40A is used by the server 10 to obtain the temperature of the food 26A, which helps the refrigeration control of the refrigerator 20.

[0066] In addition, since the label 40B is the same as the label 40A except that it is used for the food 26B, the description thereof is omitted.

[0067] Figure 2 Schematic diagram showing a first example of a tag 40A in this embodiment. Figure 2 The X-axis, Y-axis, and Z-axis shown illustrate the label 40A.

[0068] Figure 2 The label 40A shown is a sheet parallel to the XY plane, for example, with a length of about 1 cm to 10 cm in the X-axis direction and the Y-axis direction, and a length (ie, thickness) of less than a few millimeters in the Z-axis direction, but not limited thereto.

[0069] like Figure 2 As shown, the tag 40A includes a temperature indicating portion 41 and an identification portion 47 .

[0070] The temperature indicating portion 41 includes a temperature-sensitive color-changing temperature indicating material 42. The temperature indicating material 42 is a reversible temperature indicating material that returns to its original color when the temperature returns to the original temperature after the color changes.

[0071] As an example, a plurality of temperature indicating materials 42 are arranged in a direction parallel to the X-axis.

[0072] The plurality of temperature indicating materials 42 are configured to indicate the temperature in the appropriate temperature range of the room including the refrigerating room as a whole, for example, the temperature in the temperature range of 0° C. to 50° C. The plurality of temperature indicating materials 42 correspond to the temperature range of 5° C. in the direction in which the X coordinate increases.

[0073] The plurality of temperature-indicating materials 42 are configured to change color within the temperature ranges corresponding thereto. In other words, the plurality of temperature-indicating materials 42 are configured to change color to the first color at a low temperature within the temperature range corresponding thereto, the second color at a temperature higher than the above temperature range, the first color, the second color within the above temperature range, or an intermediate color between the first color and the second color. Here, the first color and the second color are different.

[0074] Furthermore, the temperature indicating portion 41 may include a display portion 43 at a position closer to the negative side of the Y-axis than the temperature indicating material 42, and the display portion 43 displays the temperature range corresponding to each of the temperature indicating materials 42. Specifically, the display portion 43 displays temperature scales such as "0°C", "5°C", "10°C", ..., and "50°C". The unit (i.e., "°C") may be omitted, or a portion of the scale (e.g., "5°C", "15°C", etc.) may be omitted within a range that does not cause misunderstanding to the user. In addition, the color of the text on the display portion 43 is not limited to black, and may be any color such as blue or red. In addition, the display portion 43 may not be a necessary configuration, and the temperature indicating portion 41 may not include the display portion 43.

[0075] exist Figure 2 In the embodiment, among the plurality of temperature indicating materials 42, the temperature indicating material 42 located closest to the negative direction of the X-axis corresponds to the temperature range of 0°C to 5°C, the second temperature indicating material 42 from the negative direction of the X-axis corresponds to the temperature range of 5°C to 10°C, and the temperature indicating material 42 located closest to the positive direction of the X-axis corresponds to the temperature range of 45°C to 50°C. Figure 2 In the figure, except for "50°C", "°C" included in the temperature scale is omitted, and the display of the temperature scale with the unit digit of 5 is omitted.

[0076] In the tag 40A used in the freezer compartment, the plurality of temperature indicating materials 42 are configured to indicate a temperature within a temperature range (eg, −20° C. to 10° C.) including an appropriate temperature range of the freezer compartment as a whole.

[0077] Furthermore, the display unit 43 may be a display unit that displays a temperature (also referred to as a specified temperature) that is predetermined as the upper limit temperature of food stored in the refrigerator 20 , and specifically includes at least one of the display unit 44 and the display unit 45 .

[0078] The display unit 44 displays the temperature scale indicating the predetermined temperature in a manner different from that of the other display units 43 among the plurality of display units 43. The display unit 44 is Figure 2 The display of "40°C" in the display unit 44 is displayed in a larger size and bolder font than the text in the other display units 43. In addition, the color of the text in the display unit 44 is not limited to black, and may be any color such as blue or red. The display unit 44 may also be displayed in a different color from the text in the other display units 43.

[0079] The display portion 45 is a graphic that surrounds the temperature indicating material 42, and the temperature indicating material 42 is a temperature indicating material that corresponds to the temperature range below the predetermined temperature among the plurality of temperature indicating materials 42. In addition, the shape of the display portion 45 is not limited to a rectangle, and may be other graphics. In addition, the inside of the display portion 45 may be painted with a color or filled with a dot pattern.

[0080] In this way, since display unit 43 includes a display unit (at least one of display units 44 and 45) that displays the predetermined temperature, the user can be urged not to store food 26A exceeding the predetermined temperature in the storage.

[0081] Specifically, the temperature indicating material 42 is made of cloth or paper formed of temperature indicating ink, synthetic resin kneaded with the temperature indicating material, or fiber kneaded with the temperature indicating material.

[0082] When the temperature indicating material 42 includes temperature indicating ink, since the temperature indicating portion 41 is manufactured by printing, the temperature indicating portion 41 having rich design properties has an effect of being easy to manufacture and being able to be manufactured at low cost.

[0083] In addition, although Figure 2 The case where the temperature indicating portion 41 includes a plurality of temperature indicating materials 42 is described above, but the temperature indicating portion 41 may also be configured to include a single temperature indicating material 42, by which the temperature is indicated by the single temperature indicating material 42 changing its color in sequence of a plurality of colors within an appropriate temperature range in the room including the cold storage room, i.e., within a temperature range of 0°C to 50°C.

[0084] The identification unit 47 displays identification information that can be uniquely identified by appearance. The identification information can uniquely identify the food stored in the refrigerator 20. The identification information can be identification information generally given to commodities (for example, a JAN barcode (Japanese Article Number) or a GTIN (Global Trade Item Number) code), or a code determined by the user so as to uniquely identify the food within the range of the food stored in the refrigerator 20.

[0085] Although the identification portion 47 is a barcode as an example, it is not limited to this, and may be a two-dimensional code (such as a QR code (registered trademark)), a color code, text, a symbol, or a graphic. In addition, the identification portion 47 may be generated on the label 40A by printing or the like during the manufacturing process of the label 40A, or may be mounted on the label 40A after being generated separately from the label 40A. In the latter case, for example, the identification portion 47 with an adhesive on the back side may be attached to the label 40A, so that the identification portion 47 is attached to the label 40A.

[0086] Furthermore, when the outer shape of the label 40A is configured to be uniquely identifiable by appearance, the outer shape of the label 40A functions as the identification portion 47. Figure 2 An example in which the outer shape of the label 40A is a rectangle is shown, but the outer shape of the label 40A can also be circular, polygonal, or a part or all of the outer edge of the label 40A can have a concave-convex pattern, or any other arbitrary pattern. Such an outer shape of the label 40A functions as the identification portion 47.

[0087] Alternatively, the tag 40A may be configured to not include metal. In this case, the food 26A can be heated in a microwave oven with the tag 40A attached. If the tag 40A includes metal, when the food 26A with the tag 40A attached is heated in a microwave oven, the metal may reflect electromagnetic waves, sparks may occur, and the microwave oven may fail.

[0088] Alternatively, the label 40A may have a mounting portion to be mounted on the food 26A. The mounting portion may be, for example, an adhesive that is attached to the surface of the label 40A opposite to the surface on which the temperature indicating portion 41 and the identification portion 47 are attached. Alternatively, the mounting portion may be a paper clip that clips the label 40A to the food 26A. Alternatively, the label 40A may be a part of the container or packaging of the food 26A.

[0089] In addition, as the identification portion 47, a combination of a barcode or QR code, etc. and the outer shape of the label 40A can be used. In other words, a combination of a barcode or QR code, etc. and the outer shape of the label 40A can be used. Furthermore, when the label 40A is attached to a container or the label 40A is a part of the container, the outer shape of the container can also be used as the identification portion 47. Furthermore, as the identification portion 47, a combination of a barcode or QR code, etc. and the outer shape of the container, or a combination of a barcode or QR code, etc., the outer shape of the label 40A and the outer shape of the container can also be used.

[0090] Another example of the tag 40A in this embodiment will be described.

[0091] Figure 3 1 is a schematic diagram showing a label 40C which is a second example of the label in the present embodiment.

[0092] Figure 3 The illustrated label 40C does not have the display portion 43 of the label 40A.

[0093] Figure 3 The label 40C shown is the same as the label 40A, which is used by the server 10 to obtain the temperature of the food 26A to facilitate the refrigeration control of the refrigerator 20.

[0094] Figure 4 as well as Figure 5 1 is a schematic diagram showing a tag 40D as a third example of the tag in the present embodiment.

[0095] Figure 4 The label 40D shown has a temperature indicating portion 41 having a single temperature indicating material 42C. When the temperature indicating material 42C reaches a temperature exceeding a predetermined temperature, for example, the color changes to a different color than when the temperature is below the predetermined temperature (see Figure 5 ).

[0096] Figure 4 The label 40D shown is the same as the label 40A, which is used by the server 10 to obtain the temperature of the food 26A to facilitate the refrigeration control of the refrigerator 20.

[0097] Return to Figure 1 , the functional parts of the refrigerator 20 are described.

[0098] The refrigerator 20 includes a communication IF (interface) 21 , a processor 22 , a storage device 23 , an imaging unit 24 , and a cooling unit 25 .

[0099] The communication IF 21 is a communication interface that can be connected to the network N. When the refrigerator 20 communicates with other devices via the network N, the communication IF 21 transmits and receives communication packets with other devices. The communication IF 21 is, for example, a communication interface of Wi-Fi (registered trademark).

[0100] The processor 22 controls the operation of the refrigerator 20. The processor 22 controls the operation of the refrigerator 20 by executing a predetermined program using a memory (not shown).

[0101] The storage device 23 is a storage device for storing information. The storage device 23 is implemented by, for example, a HDD (Hard Disk Drive: mechanical hard disk) or an SSD (Solid State Drive: solid state drive).

[0102] The camera unit 24 is a camera that takes a picture of food 26A, etc., which is food to be stored in the refrigerator 20 or food already stored in the refrigerator 20, and generates an image showing the food 26A, etc. The camera unit 24 operates under the control of the processor 22. In the image generated by the camera unit 24, not only the food 26A, etc. are shown, but also the label 40A attached to the food 26A, etc. is shown. The camera unit 24 sends the generated image to the server 10 via the communication IF 21. The camera unit 24 may also repeatedly perform photographing and image generation. The interval between photographing and image generation is, for example, a few seconds to a few minutes, but is not limited thereto. When the camera unit 24 repeatedly performs photographing and image generation, it may send the image to the server 10 each time an image is generated, or it may send a plurality of images together to the server 10.

[0103] The camera unit 24 is installed in a position and posture that can capture food to be stored in or taken out of the refrigerator 20. For example, the camera unit 24 is installed in a position facing downward at the front upper position of the refrigerator compartment of the refrigerator 20. In addition, the camera unit 24 is installed on the door of the refrigerator compartment of the refrigerator 20 in a posture facing the storage compartment of the refrigerator 20. In addition, the camera unit 24 can be set inside the refrigerator 20 or outside the refrigerator. In the case where there are multiple camera units 24, the camera unit 24 can also be installed in each storage compartment of the refrigerator 20.

[0104] The cooling unit 25 is a refrigeration device that cools the interior of the refrigerator 20. The cooling unit 25 operates under the control of the processor 22.

[0105] The refrigeration unit 25 has: a heat pump that sucks air from the storage to cool it; a fan that makes the refrigerated air flow; a blow-out port that blows the air cooled by the heat pump to the storage; and a control unit that controls the heat pump and the fan. The refrigeration unit 25 obtains control information from the server 10 using the communication IF21, and under the control of the processor 22, controls the operation of the heat pump and the fan according to the control information obtained from the server 10, thereby controlling the strength of the refrigeration in the storage of the refrigerator 20. In addition, the refrigeration unit 25 may also have multiple blow-out ports. In this case, the refrigeration unit 25 may also control the blowing of cold air from each of the multiple blow-out ports according to the control information.

[0106] The terminal 30 includes a communication IF 31 , a processor 32 , and a display screen 33 .

[0107] The communication IF 31 is a communication interface that can connect to the network N. When the terminal 30 communicates with other devices via the network N, the communication IF 31 transmits and receives communication packets with other devices. The communication IF 31 is, for example, a communication interface of Wi-Fi or a communication interface of a mobile phone network.

[0108] The processor 32 controls the operation of the terminal 30. The processor 32 controls the operation of the terminal 30 by executing a predetermined program using a memory (not shown).

[0109] The display screen 33 is a display device that displays information. The display screen 33 displays, for example, food information obtained from the server 10 via the communication IF 31 as an image. Alternatively, the display screen 33 may be replaced by a speaker that outputs the food information as sound. Alternatively, the display screen 33 may be replaced by a prompt unit that includes at least one of the display device and the speaker.

[0110] The network N may be formed by any communication line or network, and may include, for example, the Internet, a carrier network of a cellular phone, an access network of an Internet provider, or a public network.

[0111] The server 10 controls the refrigeration in the refrigerator 20 according to the temperature of the food 26A etc. stored in the refrigerator 20. In addition, the server 10 controls the terminal 30 to provide food information including the shelf life of the food according to whether the food 26A etc. is stored in the refrigerator and the change of the temperature of the food 26A etc. In addition, the shelf life of the food may be used instead of the shelf life. The same applies to the following.

[0112] The server 10 includes a communication IF 11 , a processor 12 , and a storage device 13 .

[0113] The communication IF 11 is a communication interface connectable to the network N. When the functional unit of the server 10 communicates with other devices via the network N, the communication IF 11 transmits and receives communication packets with other devices. The communication IF 11 is, for example, an Ethernet (registered trademark) communication interface.

[0114] The processor 12 controls the operation of the server 10. The processor 12 controls the operation of the server 10 by executing a predetermined program using a memory (not shown), thereby realizing the acquisition unit 14, the analysis unit 15, the refrigeration control unit 16, and the food management unit 17.

[0115] The acquisition unit 14 acquires an image showing the interior of the refrigerator 20 via the communication IF 11 .

[0116] The analyzing unit 15 obtains the identification information displayed by the identification unit 47 of the label 40A shown in the image by analyzing the image obtained by the obtaining unit 14. More specifically, the analyzing unit 15 performs image analysis processing on the image obtained by the obtaining unit 14 to determine the identification unit 47 of the label 40A shown in the image obtained by the obtaining unit 14, and obtains the identification information displayed by the identification unit 47.

[0117] Furthermore, the analyzing unit 15 obtains the temperature indicated by the label 40A reflected in the above-mentioned image by analyzing the image obtained by the obtaining unit 14. More specifically, the analyzing unit 15 determines the temperature indicating unit 41 of the label 40A reflected in the image obtained by the obtaining unit 14 by performing image analysis processing on the image obtained by the obtaining unit 14, and obtains the temperature indicated by the label 40A according to the color indicated by the temperature indicating unit 41. The analyzing unit 15 has corresponding information that establishes a correspondence between the color indicated by the temperature indicating unit 41 and the temperature of the label 40A, and obtains the temperature of the label 40A according to the color indicated by the temperature indicating unit 41 with reference to the corresponding information. The temperature of the label 40A obtained in this way is also referred to as "the temperature indicated by the label 40A". The analyzing unit 15 obtains the temperature indicated by the label 40A as the temperature of the food 26A. In addition, the analyzing unit 15 can also obtain the temperature indicated by the label 40A separately from the temperature of the food 26A.

[0118] In addition, the analysis unit 15 can obtain the temperature indicated by the label 40A not only directly based on the color indicated by the temperature indicating portion 41, but also can obtain the temperature indicated by the label 40A using the area of ​​the portion where the color of the temperature indicating material 42 changes from the first color. Since the portion where the color changes from the first color is determined using, for example, a brightness value, the effect obtained is that the processing involved in the determination becomes easier.

[0119] Furthermore, the analysis unit 15 may store the obtained temperature together with the time when the temperature is obtained as the transition information 18. Furthermore, when the food 26A stored in the warehouse is temporarily taken out of the warehouse and stored in the warehouse again, the analysis unit 15 may estimate the temperature of the food 26A during the period when it is placed outside the warehouse (in other words, during the period when the food 26A is present outside the warehouse), and add the temperature to the transition information 18. The transition of the temperature of the food 26A during the period when it is placed outside the warehouse may be estimated, for example, that the temperature at the time when the food 26A is taken out of the warehouse is the same as the temperature in the warehouse, and gradually approaches the room temperature after this time point and finally becomes the same as the room temperature.

[0120] Here, the room temperature may be, for example, the temperature sensed by a sensor of an air conditioner installed in the space where the refrigerator 20 is installed, or the temperature sensed by a sensor installed in the above space for measuring the room temperature, or a temperature predetermined according to the season or time, or a temperature predetermined throughout the year regardless of the season or time.

[0121] The transition from the temperature in the storage to the temperature close to room temperature can be calculated by a known technique based on the temperature difference between the temperature of food 26A and room temperature, the heat capacity of food 26A, etc. The transition information 18 will be described in detail later.

[0122] Furthermore, the analyzing unit 15 may analyze the position of the tag 40A in the image obtained by the obtaining unit 14 in the warehouse. When there are multiple camera units 24, the position of the tag 40A in the image obtained by the obtaining unit 14 may be analyzed by using the position where the camera unit 24 that captured the image is installed. In addition, the position where the camera unit 24 that captured the image is installed can be obtained in advance from information assigned to the image, or can be obtained from a structure that is reflected in the image (for example, the position and shape of a wall or partition in the warehouse).

[0123] Alternatively, when a user who stores or takes out food 26A is shown in the image obtained by the obtaining unit 14, the analyzing unit 15 analyzes the user. For example, when there are multiple users expected to use the refrigerator 20, the analysis of the user is to determine which user among the multiple users the user shown in the image is. The multiple users who use the refrigerator 20 are, for example, multiple people living in a house where the refrigerator 20 is installed.

[0124] The refrigeration control unit 16 generates control information for controlling the refrigeration in the refrigerator 20, and sends the generated control information to the refrigerator 20. Specifically, the refrigeration control unit 16 generates the control information by comparing the temperature indicated by the tag 40A obtained by the analysis unit 15 with the appropriate temperature range in the refrigerator 20, and sends the generated control information to the refrigerator 20 via the communication IF 11. The control information sent by the refrigeration control unit 16 is received by the refrigerator 20 and used to control the refrigeration of the refrigeration unit 25, which is refrigeration performed according to the control of the processor 22 of the refrigerator 20.

[0125] The control information specifically includes information for controlling the intensity of refrigeration. For example, when the temperature in the refrigerator 20 obtained by the analysis unit 15 is determined to be higher than the appropriate temperature range in the refrigerator, the refrigeration control unit 16 generates control information for controlling the refrigeration of the refrigerator 20 to be strengthened.

[0126] When images generated by repeatedly photographing food 26A and the like stored in the refrigerator 20 by the camera unit 24 are sent to the server 10, the refrigeration control unit 16 repeatedly obtains, generates and sends control information for the temperature in the refrigerator 20 by utilizing the received images, thereby being able to continuously control the refrigeration of the refrigerator 20.

[0127] Furthermore, the refrigeration control unit 16 may generate control information for controlling the strengthening of refrigeration at the position where the tag 40A having a temperature higher than the appropriate temperature range is located, when the analysis unit 15 analyzes the position of the tag 40A. More specifically, when the refrigeration unit 25 has a plurality of outlets, the control information is control information for controlling the strengthening of cold air blown out of the outlet that blows cold air to the position where the tag 40A having a temperature higher than the appropriate temperature range is located (in other words, the outlet that is closer to the above position) among the plurality of outlets.

[0128] Furthermore, when the analysis unit 15 analyzes the size of the tag 40A, the cooling control unit 16 may generate control information for increasing cooling intensity or for increasing cooling intensity for a longer period of time as the size of the tag 40A increases.

[0129] The food management unit 17 manages the food 26A and the like stored in the warehouse. The above management includes, for example, the management of the shelf life of the food 26A. Specifically, the food management unit 17 generates food information that corresponds to the identification information of each of the food 26A and the like stored in the warehouse and shows the shelf life of the food 26A and the like. When generating the food information, the shelf life of the food 26A and the like is obtained by referring to the corresponding information that corresponds to each of the predetermined edible periods of the food. The food management unit 17 can also adjust the shelf life by referring to the transition information 18.

[0130] Furthermore, the food management unit 17 performs a presentation control to present the generated food information to the terminal 30. Specifically, the presentation control includes a control to transmit the food information to the terminal 30 and to display the food information on the terminal 30 as an image, for example.

[0131] Alternatively, the food management unit 17 may adjust the expiration date of the food 26A or the like using the transition information 18 generated by the analysis unit 15. In the presentation control in this case, presentation of the food information is controlled using the adjusted expiration date.

[0132] The storage device 13 is a storage device for storing information. The storage device 13 is implemented by, for example, a HDD (Hard Disk Drive) or an SSD (Solid State Drive). The storage device 13 stores the shift information 18. As an example, the shift information 18 is stored by the analysis unit 15 and read out by the food management unit 17.

[0133] in addition, Figure 1 The configuration of the functional parts included in the control system 1 shown is an example, and the configuration of the functional parts may be different.

[0134] For example, the refrigeration control unit 16 of the server 10 may be provided by the refrigerator 20. In this case, the analysis unit 15 of the server 10 may also be provided by the refrigerator 20. With this configuration, the refrigerator 20 can generate control information based on the image and control the refrigeration in the refrigerator 20 without sending the image obtained by the camera unit 24 to the server 10. This configuration has the effect of not being affected by the communication delay via the network N.

[0135] For example, the acquisition unit 14, the analysis unit 15, the refrigeration control unit 16, and the food management unit 17 of the server 10 may be provided by the refrigerator 20, and the shift information 18 may be stored in the storage device 23 of the refrigerator 20. With this configuration, not only is the above-mentioned delay not affected, but the server 10 is not required, thereby achieving an effect of simplifying the system configuration. As a result, the effects of reducing costs and power consumption can be achieved.

[0136] Figure 6 This is an explanatory diagram showing an example of the transition of the temperature of food 26A in the present embodiment. Figure 6 The solid line shown is an example of the change in the temperature of food 26A obtained by analysis unit 15 when food 26A is stored in refrigerator 20 before time T1 and after time T2. Figure 6 The dashed line shows the change in the temperature of food 26A estimated based on the change in the temperature shown by the solid line, the heat capacity of food 26A, and the refrigeration capacity of refrigerator 20. Figure 6 It is not essential to obtain the temperature transition indicated by the dotted line.

[0137] exist Figure 6 The temperature transition shown shows that the temperature at which food 26A can be continuously obtained before time T1 is maintained at temperature TA. Here, temperature TA is the temperature in the storage.

[0138] Furthermore, it is shown that the temperature of food 26A is not obtained during the period from time T1 to time T2.

[0139] Furthermore, it is shown that the temperature of food 26A can be continuously obtained after time T2, which is temperature TB at time T2, and gradually decreases after time T2, and approximately drops to temperature TA at time T3, and the temperature is maintained at temperature TA after time T3. Here, temperature TB is the temperature outside the warehouse, that is, room temperature.

[0140] The food management unit 17 adjusts the expiration date of the food 26A and the like according to the change in temperature.

[0141] For example, when the temperature of food 26A changes at approximately temperature TA, the time when food 26A is first stored in the warehouse can be used as the starting point, and the time when a predetermined edible period in the case of refrigeration has passed can be used as the shelf life of food 26A.

[0142] However, in the case where the temperature of the food 26A is higher than the temperature TA during a period (also referred to as a room temperature period), the shelf life of the food 26A is adjusted to be shorter than that during refrigeration. In the above adjustment, the longer the room temperature period is, the shorter the shelf life is adjusted. The room temperature period can be defined as a period P1 during which the temperature of the food 26A is higher than the temperature TA (for example, 10% higher than the room temperature). Figure 6 In the case of the temperature transition indicated by the dotted line, the temperature of food 26A is substantially equal to the room temperature (for example, within a range of ±10% of the room temperature) during period P2.

[0143] One side reference Figures 7 to 10 , while explaining the management of food 26A, etc. performed by the food management department 17.

[0144] Figure 7 1 is an explanatory diagram showing a first table showing edible periods of food in the present embodiment. Figure 7 The table shown is a main table for managing food 26A and the like. Figure 7 The table shown is similar to Figures 8 to 10 The master data shown is used together for management of the food 26A and the like by the food management section 17 .

[0145] Figure 7 The table shown shows that the management ID, identification information, identification type, food ID, recipe ID, storage start date and time, and name are associated with each food 26A or the like.

[0146] The management ID is identification information that can uniquely identify the food. The management ID is used for the management of the food by the food management unit 17.

[0147] The identification information is the identification information displayed by the identification unit 47 of the label 40A or the like attached to the food. The identification information can be used to uniquely identify the food stored in the refrigerator 20. The identification information is the identification information obtained by the analysis unit 15 when the food is stored in the refrigerator 20.

[0148] The identification type indicates the type of identification information. Specifically, the identification type includes "JAN" indicating that the identification information is a JAN barcode or "USER" indicating that the identification information is a code determined by the user.

[0149] The food ID is identification information of the food when the food is obtained by the user in the state of the food (for example, when purchased at a food store).

[0150] The recipe ID is identification information of the food when the food is a dish cooked by a user (so-called pre-prepared dish).

[0151] The storage start date and time is the date and time when the food is first stored in the refrigerator 20 .

[0152] The name is the name of the food. The name may also be the name of the food obtained by image recognition based on an image taken when the food is stored in the refrigerator 20, or the name of the food input by the user when the food is stored in the refrigerator 20.

[0153] Alternatively, in Figure 7 The table shown also includes user ID, camera unit ID or room ID.

[0154] The user ID is an identifier of the user who first put the food into the refrigerator 20. The user ID can be used when the user is analyzed by the analysis unit 15. The user ID may include the owner of the food.

[0155] The camera ID is an identifier of the camera 24 that photographed the food. When there are multiple camera units 24, the camera ID is set to uniquely identify each of the multiple camera units 24. When the refrigeration unit 25 has multiple air outlets, the camera ID is used when the refrigeration control unit 16 controls the blowing of cold air from each air outlet. More specifically, it helps control the strengthening of the cold air blown out of the air outlet that blows cold air to the location where the food is located.

[0156] The room ID is an identifier of a storage room provided in the refrigerator 20 and storing the food. When there are multiple storage rooms, the room ID is set to uniquely identify each of the multiple storage rooms. When the refrigerator 20 has multiple storage rooms, the room ID is used when the refrigeration control unit 16 controls the blowing of cold air. More specifically, it helps control and strengthen the cold air blown out of the blowing outlet of the storage room storing the food.

[0157] Figure 8 This is an explanatory diagram showing the first master data showing the edible period of food in the present embodiment. Figure 8 The master data shown is master data indicating the edible period of food according to the JAN barcode, and is also predetermined master data. Figure 8 The master data shown applies to food products that have been assigned a JAN barcode.

[0158] exist Figure 8 The table shows that identification information, name, and edible period are associated with each food. The edible period is a standard edible period when the food is stored in the refrigerator 20 (more specifically, in the refrigerator, freezer, and vegetable room), and is also a predetermined period.

[0159] Fig. 9 This is an explanatory diagram showing the second master data showing the edible period of food in the present embodiment. Fig. 9 The master data shown is master data that shows the edible period of food for each food ID, and is also predetermined master data. Fig. 9 The master data shown is suitable for a case where the name of a food is manually input by a user or a case where the name of a food is determined by image recognition processing on an image.

[0160] exist Fig. 9 The table shows that the food ID, name, and edible period are associated with each food. The edible period includes the edible period when stored in a refrigerator, a freezer, and a vegetable compartment.

[0161] Fig.10 It is an explanatory diagram showing the third master data showing the edible period of food in the present embodiment. Fig.10 The master data shown is master data that indicates the edible period of food for each recipe ID, and is also predetermined master data. Fig.10 The master data shown is suitable for a case where a user cooks a food and manually inputs the name of the food, or a case where the name of the food is determined by image recognition processing on an image.

[0162] exist Fig.10 The table shows that identification information, name, and edible period are associated with each food item. The edible period includes the edible period when stored in a refrigerator, a freezer, or a vegetable compartment.

[0163] By reference Figures 7 to 10 The food 26A and the like are managed by the food management unit 17 using the tables and master data shown.

[0164] For example, in Figure 7 In the example, the food with management ID 1000 is shown as having identification information "4900000000123" as a JAN barcode, a name "eggs", and a storage start date and time of "June 3, 2022 10:00". Figure 8 The master data shown thus indicates that the edible period of the “eggs” when stored in a refrigerator is 14 days.

[0165] And, in Figure 7In the example, the food with management ID 1002 is shown as follows: the identification information "10002000" which is a code determined by the user; the name "fried vegetables"; and the storage start date and time "June 10, 2022 18:45". In this way, by using the master data including the identification information which is the code determined by the user, Fig.10 The master data shown thus shows that the edible period of "fried vegetables" when stored in the refrigerator is 2 days, and the edible period when stored in the freezer is 2 weeks.

[0166] Alternatively, Figures 8 to 10 The master data shown includes a room temperature storage warning period and a room temperature storage caution period. The room temperature storage warning period is a warning period related to the situation where food 26A and the like are left at room temperature. It is a period during which the user is advised to consume the food as soon as possible if the food is left outside the warehouse for more than this period. The room temperature storage caution period is a caution period related to the situation where food 26A and the like are left at room temperature. It is a period during which the user is notified that food poisoning may occur if the food is left outside the warehouse for more than this period.

[0167] Fig.11 It is an explanatory diagram showing fourth master data showing the edible period of food in the present embodiment. Fig.11 The master data shown is relative to Fig. 9 The master data shown is the master data to which the room temperature leaving warning period and the room temperature leaving caution period are added.

[0168] exist Fig.11 The master data shown indicates that the room temperature leaving warning period for "pork belly slices" is 30 minutes, and the room temperature leaving caution period is 60 minutes.

[0169] In addition, the room temperature leaving warning period and the room temperature leaving caution period may be appropriately set according to the season or the room temperature. Fig.11 The illustrated room temperature left warning period and room temperature left caution period are an example of a case where the room temperature is 25° C. in summer.

[0170] Fig.12 1 is an explanatory diagram showing an image 51 as a first example of an image displayed by the control system 1 in the present embodiment. The image 51 is an example of an image displayed by the terminal 30 under the control of the server 10.

[0171] Image 51 includes table 52 showing the names of food 26A etc. stored in the refrigerator 20 and the expiration dates of the food 26A etc. respectively associated with the food 26A etc. Table 52 may be replaced by an image showing the above contents in a form other than a table.

[0172] The food columns in Table 52 are based on Figure 7 The column of the name of the table shown is generated, and the column of the expiration date is generated based on the current time and the predetermined edible period.

[0173] Table 52 shows that food 26A stored in the refrigerator 20 includes eggs and fried vegetables. It also shows that the shelf life of the eggs is "14 days left" (i.e., a 14-day period starting from the current time, and the same applies below), and the shelf life of the fried vegetables is "2 days left". It is assumed that the eggs are raw eggs purchased at a food store, and the fried vegetables are cooked by the user and stored in the refrigerator 20.

[0174] Fig.13 1 is an explanatory diagram showing an image 54 as a second example of an image displayed by the control system 1 in this embodiment. The image 54 is different from the image 51 (see Fig.12 ) is also an example of an image displayed by the terminal 30 under the control of the server 10. More specifically, the image 54 is an image displayed by the terminal 30 after the image 51 is displayed and the stir-fried vegetables as one of the foods are placed outside the warehouse for 30 minutes and then stored again in the warehouse.

[0175] The food columns and shelf life columns in Table 55 have the same meanings as those in Table 52.

[0176] In Table 55, the column for the food item of stir-fried vegetables contains a character string "(outside the store for 30 minutes)". This character string indicates that the stir-fried vegetables were left outside the store for 30 minutes.

[0177] Alternatively, a mark 56 may be displayed for foods that are close to their expiration dates to draw the user's attention. Foods that are close to their expiration dates are, for example, foods that have an expiration date of "1 day left". By visually checking the mark 56, the user can recognize that the food with the mark 56 must be consumed as soon as possible, thereby achieving not only the effect of achieving effective use of food but also the effect of preventing food waste.

[0178] Alternatively, the shelf life of the stir-fried vegetables may be adjusted to be shorter. For example, the shelf life of the stir-fried vegetables may be adjusted to "1 day left". This means that the temperature of the stir-fried vegetables becomes higher than the temperature TA inside the refrigerator 20 (more specifically, as high as the room temperature) because the stir-fried vegetables are left outside the refrigerator for 30 minutes, and thus the shelf life is adjusted.

[0179] In addition, Fig.12 or Fig.13In the image shown by the terminal 30, the displayed food may include only the food owned by the user of the terminal 30. In other words, the food other than the food owned by the user of the terminal 30 may not be included. Furthermore, the above image may be configured so that the mark 56 is only displayed in the image displayed by the terminal 30 of the user who is the owner of the food. The user who is the owner of the food can Figure 7 It is managed according to the table shown.

[0180] And it can also be, Fig.12 or Fig.13 The image displayed by the terminal 30 is configured to be able to modify the food or the expiration date of the food further according to the user's operation. The terminal that can modify the food or the expiration date of the food may also be limited to the terminal 30 of the user who is the owner of the food.

[0181] Fig.14 1 is a flowchart showing the processing of the control system 1 in the present embodiment.

[0182] In step S101, refrigerator 20 uses a camera to photograph food to be stored in the refrigerator 20 or food already stored in the refrigerator 20, namely food 26A (equivalent to the first food), to generate an image showing label 40A attached to food 26A.

[0183] In step S102, server 10 analyzes the color of temperature indicating material 42 of label 40A shown in the image generated by refrigerator 20, thereby obtaining the temperature of food 26A.

[0184] In step S103 , the server 10 compares the temperature obtained in step S102 with the appropriate temperature range in the refrigerator 20 , thereby generating control information for controlling cooling in the refrigerator 20 .

[0185] In step S104, the server 10 transmits the control information generated in step S103 to the refrigerator 20. The refrigerator 20 receives the transmitted control information and controls the cooling in the refrigerator according to the received control information.

[0186] pass Fig.14 Through the series of processes shown, the control system 1 can appropriately manage the food stored in the refrigerator.

[0187] As described above, by using the label of the above embodiment, by performing image analysis on the image obtained by shooting and showing the label, both the temperature and identification information indicated by the label can be temporarily obtained. As an example, when the food stored in the refrigerator is attached with the label, the refrigerator can be refrigerated according to the temperature indicated by the label. In this way, the label can appropriately manage the food stored in the refrigerator.

[0188] Furthermore, since the temperature indicating material includes the temperature indicating ink, the temperature indicating material has the effect of being easier to manufacture by printing. Furthermore, the temperature indicating material with rich design has the effect of being easy to manufacture and can be manufactured at a low cost. Accordingly, the above-mentioned label can more easily and appropriately manage the food stored in the refrigerator.

[0189] Furthermore, since the tag does not include metal, the reflection of electromagnetic waves or the generation of sparks caused by metal when the microwave oven is working can be avoided, and the tag can be used more safely. Accordingly, the tag can manage the food stored in the refrigerator more safely and appropriately.

[0190] Furthermore, the label is attached to the food through the attachment part or contacts the food as a part of the container or packaging of the food, and accordingly the label has substantially the same temperature as the food. Thus, by performing image analysis on the image of the existing label, the temperature of the food can be obtained with higher accuracy. Accordingly, the label can properly manage the food stored in the refrigerator by obtaining the temperature of the food with higher accuracy.

[0191] Furthermore, since the label has a display unit, it can prompt the user to be careful not to store food whose temperature exceeds the upper limit temperature of food stored in the refrigerator. Accordingly, the label can not only prevent food with relatively high temperature from being stored in the refrigerator, but also properly manage the food stored in the refrigerator.

[0192] Furthermore, the control method of the above embodiment can control the refrigeration of the refrigerator according to the temperature of the food stored in the refrigerator. Thus, the control method can appropriately manage the food stored in the refrigerator.

[0193] Furthermore, since the refrigeration of the refrigerator is strengthened when the temperature of the food is higher than the appropriate temperature range, it is possible not only to accelerate the temperature reduction of the food, but also to suppress the temperature rise of other foods stored in the refrigerator. Accordingly, the control method can appropriately manage the food stored in the refrigerator by suppressing the temperature rise.

[0194] Furthermore, since the refrigeration of the refrigerator is continuously controlled, the temperature rise of the food stored in the refrigerator can be suppressed. Accordingly, the control method can appropriately manage the food stored in the refrigerator by suppressing the temperature rise.

[0195] Furthermore, since the location of the food with a temperature higher than the appropriate temperature range is used to strengthen the refrigeration of the location of the food, not only can the temperature of the food be further reduced, but also the temperature rise of other foods stored in the refrigerator can be suppressed. Accordingly, the control method can appropriately manage the food stored in the refrigerator by suppressing the temperature rise.

[0196] Furthermore, since the shelf life or best before date (also referred to as expiration date, etc.) of each food is indicated to the user, it not only has the effect of effectively utilizing the food by allowing the user to identify the shelf life of each food, but also has the effect of suppressing food waste. Accordingly, the control method can effectively utilize food and suppress food waste while also properly managing the food stored in the refrigerator.

[0197] Furthermore, the expiration date and the like are adjusted according to the change in the temperature of the food stored in the refrigerator. Accordingly, for example, when the food stored in the refrigerator is placed outside the refrigerator and then stored inside the refrigerator again, the accelerated spoilage of the food can be reflected in the expiration date and the like, which helps the user to consume food safely. Accordingly, the control method can appropriately manage the food stored in the refrigerator.

[0198] As described above, the embodiments as technical examples of the present disclosure have been described, and the drawings and detailed descriptions have been provided for this purpose.

[0199] Therefore, the components recorded in the drawings and detailed descriptions include not only the components necessary for solving the problems, but also components that are not necessary for solving the problems in order to illustrate the above-mentioned technology. Therefore, these non-essential components should not be immediately regarded as essential because they are recorded in the drawings or detailed descriptions.

[0200] Furthermore, since the above-described embodiments are examples for illustrating the technology of the present disclosure, various changes, substitutions, additions, omissions, etc. can be made within the scope of the claims or the scope of the equivalents.

[0201] Industrial Applicability

[0202] The present disclosure can be applied to a system for managing foods stored in a refrigerator.

[0203] Explanation of symbols

[0204] 1. Control system

[0205] 10 servers

[0206] 11, 21, 31 communication IF

[0207] 12, 22, 32 processors

[0208] 13.23 Storage device

[0209] 14 Get Department

[0210] 15Analysis Department

[0211] 16 Refrigeration control unit

[0212] 17 Food Administration Department

[0213] 18Transition Information

[0214] 20. Refrigerator

[0215] 24 Camera Department

[0216] 25 Refrigeration Department

[0217] 26A, 26B Food

[0218] 30Terminal

[0219] 33 Display screen

[0220] 40A, 40B, 40C, 40D labels

[0221] 41 temperature indication part

[0222] 42, 42C temperature indicating material

[0223] 43, 44, 45 display unit

[0224] 47 Identification Department

[0225] 51, 54 images

[0226] Table 52, 55

[0227] 56 Marks

[0228] N Network

Claims

1. A label having: Temperature indicating materials; and The identification unit displays identification information that can be uniquely identified by appearance.

2. The label according to claim 1, The temperature indicating material includes temperature indicating ink.

3. The label according to claim 1, The label does not include metal.

4. The label according to claim 1, The label has a mounting portion to be mounted on food, or a container or packaging of food, or, The label is part of the container or packaging of the food product.

5. The label according to any one of claims 1 to 4, The label further comprises a display unit. The display unit displays a temperature that is predetermined as an upper limit temperature of food stored in a refrigerator.

6. A control method, in which: A first food is photographed by a camera to generate an image showing the label as claimed in claim 1 attached to the first food, wherein the first food is food to be stored in a refrigerator or food already stored in the refrigerator. The temperature of the first food is obtained by analyzing the color of the temperature indicating material of the label reflected in the generated image. By comparing the obtained temperature with an appropriate temperature range in the refrigerator, control information for controlling refrigeration in the refrigerator is generated, and the generated control information is sent to the refrigerator.

7. The control method according to claim 6, When generating the control information, When it is determined that the obtained temperature is higher than the appropriate temperature range, control information for performing control to strengthen cooling of the refrigerator is generated.

8. The control method according to claim 6, By repeatedly executing the generation and transmission of the control information based on the image capture of the first food stored in the refrigerator, the cooling of the refrigerator is continuously controlled.

9. The control method according to claim 6, In the control method, analyzing the position of the label reflected in the generated image in the library, When generating the control information, Control information for performing control to intensify cooling of the location where the tag having a temperature higher than the appropriate temperature range is located is generated.

10. The control method according to any one of claims 6 to 9, In the control method, obtaining the identification information displayed by the identification unit of the label shown in the image, generating food information, wherein the food information is information corresponding to the identification information and indicating a shelf life or a best before date of the first food with the label attached thereto; A prompt control is performed to prompt the food information.

11. The control method according to claim 10, Further in the control method, using the identification information to obtain transition information, the transition information being information indicating a transition of the temperature of the first food; Using the acquired transition information, the shelf life or best-before-sale period of the first food is adjusted. In the prompt control, the adjusted shelf life or best before date is used to prompt the food information.

12. A control system comprising: a camera unit, which photographs a first food by a camera to generate an image showing the label according to claim 1 attached to the first food, wherein the first food is a food to be stored in a refrigerator or a food already stored in the refrigerator; an analyzing unit that obtains the temperature of the first food by analyzing the color of the temperature indicating material of the label reflected in the generated image; and The control unit generates control information for controlling cooling in the refrigerator by comparing the obtained temperature with an appropriate temperature range in the refrigerator, and transmits the generated control information to the refrigerator.

Images