WO2024080037A1 - Object management system, and refrigerator - Google Patents

Abstract

Provided are an object management system and a refrigerator capable of suppressing a deterioration in a management accuracy of objects accommodated in the refrigerator.　The object management system comprises a refrigerator provided with a main box body, and an imaging device which is attached to a top surface of the main box body to image the refrigerator, wherein: the imaging device is provided with a first wireless communication module capable of transmitting management data for managing the objects accommodated in the refrigerator; and the first wireless communication module is positioned forward of an opening portion of the main box body in a state in which the imaging device has been attached to the main box body.

Description

Inventory management system and refrigerator

This disclosure relates to an item management system and a refrigerator.

Patent Document 1 discloses a technology in which a camera is installed on top of a refrigerator, a photograph is taken when an object passing through the opening of the refrigerator is detected, and the food stored in the refrigerator is managed based on the photographed results.

JP 2019-070476 A

The present disclosure provides an item management system and a refrigerator that can prevent a decrease in the accuracy of managing items stored in the refrigerator.

The item management system of the present disclosure comprises a refrigerator having a main box body, and a camera attached to the top surface of the main box body to take pictures of the refrigerator, the camera having a first wireless communication module capable of transmitting management data for managing the items stored in the refrigerator, and the first wireless communication module is located forward of the opening of the main box body when the camera is attached to the main box body.

Further, the refrigerator according to the present disclosure is a refrigerator including a main box body, and further including an imaging device provided on a top surface of the main box body for photographing the refrigerator, the imaging device including a first wireless communication module capable of transmitting management data for managing items stored in the refrigerator, and the first wireless communication module is located forward of an opening of the main box body.
In addition, this specification includes the entire contents of Japanese Patent Application No. 2022-165227 filed on October 14, 2022.

The item management system and refrigerator disclosed herein can prevent interference from the top surface of the main box body from occurring in the radio waves transmitted and received by the first wireless communication module. This allows the first wireless communication module to stably transmit management data, thereby preventing a decrease in the accuracy of item management.

FIG. 1 is a diagram showing a configuration of an item management system according to a first embodiment. FIG. 2 is a perspective view of a refrigerator according to the first embodiment. FIG. 3 is a plan view of the imaging device according to the first embodiment as viewed from the right. FIG. 4 is a perspective view of a restricting member abutting against a front edge of a main box body according to the first embodiment, as viewed from the left front. FIG. 5 is a plan view of the refrigerator and the imaging device according to the first embodiment, as viewed from the front. FIG. 6 is a plan view of the refrigerator and the imaging device according to the first embodiment, as viewed from the right. FIG. 7 is a plan view of the imaging device attached to the refrigerator according to the first embodiment. FIG. 8 is a block diagram showing a configuration of a photographing device according to the first embodiment. FIG. 9 is a block diagram showing the configuration of a terminal device and an article management server according to the first embodiment. FIG. 10 is a flowchart showing the operation of the imaging device according to the first embodiment. FIG. 11 is a flowchart showing the operation of the photographing device and the article management server according to the first embodiment. FIG. 12 is a flowchart showing the operation of the terminal device and the article management server in the first embodiment. FIG. 13 is a diagram showing a configuration of an item management system according to the second embodiment. FIG. 14 is a block diagram showing a configuration of a refrigerator according to a second embodiment.

(Knowledge and other information that forms the basis of this disclosure)
At the time when the inventors came up with the idea of the present disclosure, there was a technology that took a picture of an object when it was detected passing through the opening of a refrigerator, and managed the food stored in the refrigerator based on the photographed result. In the conventional technology, the photographing device transmits management data for managing the items stored in the refrigerator to an external device via wireless communication.
However, since the top surface of the main box of a refrigerator is generally made of metal, depending on the positional relationship between the wireless communication module provided in the imaging device and the top surface of the main box, the top surface may interfere with radio waves transmitted and received by the wireless communication module. Therefore, the inventors discovered a problem that depending on the positional relationship between the wireless communication module provided in the imaging device and the top surface of the main box, the wireless communication module may not be able to stably transmit management data, which may reduce the accuracy of managing items. In order to solve this problem, the inventors have come to constitute the subject of the present disclosure.
In view of this, the present disclosure provides an item management system and a refrigerator that can suppress a decrease in the management accuracy of items stored in the refrigerator.

Hereinafter, the embodiments will be described in detail with reference to the drawings. However, in some cases, more detailed explanations than necessary may be omitted. For example, detailed explanations of already well-known matters or duplicate explanations of substantially the same configurations may be omitted.
It should be noted that the accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

(Embodiment 1)
[1-1. Configuration]
[1-1-1. Configuration of the Item Management System]
FIG. 1 is a diagram showing a configuration of an item management system 1 according to the first embodiment.
The item management system 1 is a system for managing items stored in a refrigerator 2. The item management system 1 of the present embodiment manages images showing items stored in the refrigerator 2 as an example of managing items.

In this embodiment, the items stored in the refrigerator 2 include food and containers for storing food. The items may be marked with a specified marker.

The item management system 1 includes a refrigerator 2 .
The refrigerator 2 includes a main box 20 with an opening at the front. The main box 20 includes a refrigerator compartment 21, an ice-making compartment 22, a fresh-freezing compartment 23, a freezer compartment 24, and a vegetable compartment 25. These compartments are cooled by cold air. A revolving door 21A is provided at an opening 201 at the front of the refrigerator compartment 21. The door 21A includes a revolving right door 21B and a revolving left door 21C. The ice-making compartment 22, the fresh-freezing compartment 23, the freezer compartment 24, and the vegetable compartment 25 are provided with drawers 22A, 23A, 24A, and 25A capable of storing items, respectively. Each of the drawers 22A to 25A is open at the top when installed. A revolving partition 21D is provided at the left door 21C. The revolving partition 21D is a rectangular member that closes the gap between the right door 21B and the left door 21C when the door is closed. Hereinafter, when drawers 22A, 23A, 24A, and 25A are referred to collectively without distinction, they will be designated by the symbol "26A" and referred to as "drawer 26A."
The right door 21B corresponds to a "first door" in this disclosure, and the left door 21C corresponds to a "second door" in this disclosure.

The item management system 1 includes a camera 3. The camera 3 is provided on the top surface 20A of the main box 20 of the refrigerator 2. The top surface 20A of the main box 20 is made of metal. The top surface 20A of the main box 20 may be made of resin. The camera 3 photographs the refrigerator 2. The camera 3 may photograph items passing through the opening 201 of the refrigerator compartment 2.

The item management system 1 includes a terminal device 4. The terminal device 4 is a portable computer such as a smartphone. An application program related to management of items stored in the refrigerator 2 is installed in the terminal device 4, and the terminal device 4 communicates with the item management server 5 by using the function of the application program.
In the following description, this application program is referred to as an "item management application" and is given the reference number "411."

In FIG. 1, a user P who is at home is indicated by a solid line, and a user P who has left home H is indicated by a dotted line. When the terminal device 4 is used by a user P who is at home, it communicates with the item management server 5 via the communication device 6 or without the communication device 6. When the terminal device 4 is used by a user P who has left home H and a communication connection with the communication device 6 cannot be established, it communicates with the item management server 5 without the communication device 6.

The communication device 6 is connected to a network NW configured from a public line network or the like, and communicates with the item management server 5 via the network NW. The communication device 6 functions as an interface device for connecting the refrigerator 2, the photography device 3, and the terminal device 4 to the network NW. The communication device 6 creates a local network in the home H.

The item management system 1 includes an item management server 5. The item management server 5 is a device that manages the items stored in the refrigerator 2. The item management server 5 stores images of items as part of the item management. The item management server 5 is connected to a network NW. Note that in each diagram, the item management server 5 is represented by a single block, but this does not necessarily mean that the item management server 5 is composed of a single device.

[1-1-2. Configuration of refrigerator]
FIG. 2 is a perspective view of the refrigerator 2 in an installed state.
FIG. 2 illustrates an X-axis, a Y-axis, and a Z-axis. The X-axis, Y-axis, and Z-axis are perpendicular to each other. The Z-axis indicates the up-down direction, which corresponds to the height direction of the refrigerator 2. The X-axis and the Y-axis are parallel to the horizontal direction. The X-axis indicates the left-right direction. The left-right direction corresponds to the width direction of the refrigerator 2. The Y-axis indicates the front-rear direction. The positive direction of the X-axis indicates the right direction. The positive direction of the Y-axis indicates the front direction. The positive direction of the Z-axis indicates the upward direction.

The refrigerator 2 comprises a main box 20, a door 21A, and a drawer 26A.
The main box body 20 is a box-shaped member forming the main body of the refrigerator 2. The main box body 20 includes an outer box 202 that opens at the front, an inner box 203 that is housed inside the outer box 202 and opens at the front, and a heat insulating material that fills the space between the outer box 202 and the inner box 203. The outer box 202 is formed of, for example, a metal such as iron or a hard resin such as ABS. The upper surface of the outer box 202, i.e., the top surface 20A of the main box 20, is formed of a metal. The inner box 203 is formed of, for example, a hard resin such as ABS. For example, a hard urethane foam is used as the heat insulating material. Note that the heat insulating material is not limited to this, and any material that has heat insulating properties and can be filled in the space between the outer box 202 and the inner box 203 can be used.

The internal space of the inner box 203 is divided into multiple spaces by partition members. In this embodiment, the internal space of the inner box 203 is divided into five spaces, and the five spaces function as a refrigerator compartment 21, an ice-making compartment 22, a fresh-freezing compartment 23, a freezer compartment 24, and a vegetable compartment 25, respectively.

The right door 21B is rotatably supported by a right door hinge member 204 which is a hinge member installed on the top surface 20A of the main box body 20. The left door 21C is rotatably supported by a left door hinge member 205 which is a hinge member installed on the top surface 20A of the main box body 20.
The right door hinge member 204 corresponds to a "first hinge member" in this disclosure, and the left door hinge member 205 corresponds to a "second hinge member" in this disclosure.

A second wireless communication module 206 is installed in the right door hinge member 204. The second wireless communication module 206 is a module that receives control data for controlling the refrigerator 2 from an external device and transmits predetermined data to an external device. The reason why the second wireless communication module 206 is installed in the right door hinge member 204 and not in the left door hinge member 205 is as follows. The rotating partition 21D provided in the left door 21C has a heater for preventing condensation, and this heater is supplied with AC (Alternating Current) power as driving power from the main box body 20 via the left door hinge member 205. Therefore, in order to prevent radio waves from being affected by the power supplied to this heater, the second wireless communication module 206 is installed in the right door hinge member 204 and not in the left door hinge member 205.

[1-1-3. Configuration of the imaging device]
The photographing device 3 will be described with reference to FIGS.
3 to 7 show the same X-axis, Y-axis, and Z-axis as those shown in Fig. 2. The X-axis direction corresponds to the width direction and the left-right direction of the imaging device 3. The Y-axis direction corresponds to the front-rear direction of the imaging device 3. The Z-axis direction corresponds to the up-down direction of the imaging device 3.

Figure 3 is a plan view of the camera 3 attached to the refrigerator 2, seen from the right. Figure 4 is a perspective view of the restricting member 34 abutting against the front edge 20B of the main box body 20, seen from the front left.

As shown in Figures 3 and 4, the imaging device 3 includes a main body 30 that is installed on the top surface 20A of the main box 20, and an imaging member 31 that extends forward from the main body 30. The imaging member 31 is provided above the front of the main body 30.

The main body 30 has a power button 32 on the front for turning the power of the photographing device 3 on and off. The power button 32 is provided with a first LED (Light emitting diode) 33 that notifies predetermined information.

The main body 30 is equipped with a regulating member 34. The regulating member 34 abuts against the front edge 20B of the main box body 20 to regulate the position of the imaging member 31 in the front-rear direction of the refrigerator 2. The regulating member 34 is a piece extending from the bottom surface 30A of the main body 30. The regulating member 34 extends in the width direction of the main body 30 (the width direction of the imaging device 3) on the front side of the main body 30, and has a mark 35 at the center of the width direction of the main body 30. The mark 35 indicates the center of the width direction of the imaging device 3. The length of the regulating member 34 extending from the bottom surface 30A is shorter than the length from the top surface 20A of the main box body 20 to the door gasket provided approximately parallel to the top surface 20A at the upper inner surface of the door 21A.

Figure 5 is a plan view of the refrigerator 2 and the camera device 3 attached to the refrigerator 2, viewed from the front. The refrigerator 2 shown in Figure 5 has its door 21A open. Figure 6 is a plan view of the refrigerator 2 and the camera device 3 attached to the refrigerator 2, viewed from the right. The refrigerator 2 shown in Figure 6 has its drawer 25A open, i.e., pulled out. Figure 7 is a plan view of the camera device 3 attached to the refrigerator 2, viewed from above.

The photographing device 3 is equipped with a wide-angle camera 301 and a narrow-angle camera 302. The wide-angle camera 301 and the narrow-angle camera 302 are installed at the front end of the bottom surface 31A of the photographing member 31. When the photographing device 3 is attached to the refrigerator 2 and the door 21A is closed, the wide-angle camera 301 and the narrow-angle camera 302 are located in front of the door 21A.

Wide-angle camera 301 has a wider angle than narrow-angle camera 302. With imaging device 3 attached to refrigerator 2, wide-angle camera 301 captures an image of refrigeration compartment 21 from above and in front of refrigerator 2.
For example, the shooting range of wide-angle camera 301 includes range A1 shown in Fig. 5 when viewed from the front of refrigerator 2. Range A1 is a range that includes door pockets 21E of right door 21B and left door 21C and opening 201 of refrigerator compartment 21 when right door 21B and left door 21C are in the maximum open state. In addition, the shooting range of wide-angle camera 301 includes range A3 shown in Fig. 6 when viewed from the right of refrigerator 2. Range A3 is a range that includes, in the front-to-back direction, from the front ends of right door 21B and left door 21C in the open state to the front end of shelf 21F, and also includes opening 201 of refrigerator compartment 21 in the up-down direction.

Narrow-angle camera 302 has a narrower angle than wide-angle camera 301. With imaging device 3 attached to refrigerator 2, narrow-angle camera 302 captures an image of drawer 26A from above and in the front of refrigerator 2.
For example, the imaging range of narrow-angle camera 302 includes range A2 shown in Fig. 5 when viewed from the front of refrigerator 2. Range A2 is a range that includes drawer 26A when viewed from the front of refrigerator 2. Also, for example, the imaging range of narrow-angle camera 302 includes range A4 shown in Fig. 6 when viewed from the right of refrigerator 2. Range A4 is a range that includes drawer 26A when it is pulled out to the maximum in the front-to-rear direction.

The photographing device 3 includes a first photosensor 303 and a second photosensor 304. The first photosensor 303 and the second photosensor 304 are installed in the main body 30.
The first photosensor 303 is a sensor for detecting whether the right door 21B is open or closed. The first photosensor 303 is a reflective photosensor. When the image capturing device 3 is attached to the refrigerator 2, the first photosensor 303 projects light onto a predetermined position on the right door 21B. The first photosensor 303 then outputs a signal indicating the amount of received light.
The second photosensor 304 is a sensor for detecting whether the left door 21C is opened or closed. The second photosensor 304 is a reflective photosensor. When the image capturing device 3 is attached to the refrigerator 2, the second photosensor 304 projects light onto a predetermined position on the left door 21C. The second photosensor 304 then outputs a detection value indicating the amount of received light.

The imaging device 3 is equipped with a thermopile 305. The thermopile 305 is a sensor for detecting the opening and closing of the drawer 26A. The thermopile 305 is installed at the front end of the bottom surface 31A of the imaging member 31. The thermopile 305 outputs a detection value indicating the detected temperature.

The photographing device 3 is equipped with a human presence sensor 306. The human presence sensor 306 may be an infrared sensor or an ultrasonic sensor. The human presence sensor 306 outputs a detection value. The human presence sensor 306 is installed at the front end of the bottom surface 31A of the photographing member 31.

The photographing device 3 is equipped with an illuminance sensor 307. The illuminance sensor 307 is a sensor for adjusting the exposure of the wide-angle camera 301 and the narrow-angle camera 302. The illuminance sensor 307 outputs a detection value. The illuminance sensor 307 is installed at the front end of the photographing member 31.

The photographing device 3 is equipped with a second LED 308 and a third LED 309. The second LED 308 is installed at the right front end of the bottom surface 31A of the photographing member 31. The third LED 309 is installed at the left front end of the bottom surface 31A of the photographing member 31. The second LED 308 and the third LED 309 illuminate the refrigerator 2 to which the photographing device 3 is attached from above.

As shown in FIG. 7, the imaging device 3 includes a first control board 311 and a second control board 312.

The first control board 311 is a board that controls the various sensors equipped in the photographing device 3 and the power supply of the photographing device 3. The first control board 311 is installed inside the photographing device 3. The power button 32, the first LED 33, the first photosensor 303, the second photosensor 304, the thermopile 305, the human presence sensor 306, and the illuminance sensor 307 are connected to the first control board 311. The first control board 311 controls these devices. The first control board 311 is installed behind the second control board 312 and the first wireless communication module 313.

The second control board 312 is a board that controls the wide-angle camera 301 and the narrow-angle camera 302, and also controls the first wireless communication module 313. The second control board 312 is installed inside the photographing device 3. The wide-angle camera 301, the narrow-angle camera 302, and the first wireless communication module 313 are connected to the second control board 312. The second control board 312 controls these devices. The second control board 312 is installed in front of and alongside the first control board 311.

The first wireless communication module 313 is a device equipped with hardware such as an antenna and a wireless communication circuit. The first wireless communication module 313 is installed inside the photographing member 31 to the left of the second control board 312. The first wireless communication module 313 is installed in the photographing device 3 so that it is located forward of the opening 201 of the main box 20 when the photographing device 3 is attached to the refrigerator 2. More specifically, the first wireless communication module 313 is installed in the photographing device 3 forward of the regulating member 34.

If the first wireless communication module 313 is installed behind the restricting member 34, when the image capturing device 3 is attached to the refrigerator 2, the first wireless communication module 313 will be located at a position overlapping the top surface 20A in a top view. Since the top surface 20A of the main box body 20 is generally made of metal, if the first wireless communication module 313 and the top surface 20A overlap in a top view, interference by the top surface 20A may occur in the radio waves transmitted and received by the first wireless communication module 313. However, in this embodiment, since the first wireless communication module 313 and the top surface 20A do not overlap in a top view, interference by the top surface 20A in the radio waves transmitted and received by the first wireless communication module 313 can be suppressed. Note that in this embodiment, the first wireless communication module 313 and the door 21A overlap in a top view. However, the frame of the door 21A is generally made of resin. Therefore, the door 21A is less likely to cause interference with the radio waves transmitted and received by the first wireless communication module 313.

Note that when the image capture device 3 is attached to the refrigerator 2, the first wireless communication module 313 may be installed so as to be located above the top surface of the door 21A. For example, the first wireless communication module 313 may be located above the surface of the door 21A. Also, for example, the first wireless communication module 313 may be located above the top surface 20A of the refrigerator 2. Also, for example, the first wireless communication module 313 may be located above and in front of the door 21A when it is closed. This makes it possible to prevent interference with the radio waves of the first wireless communication module 313 even if the frame of the door 21A is made of metal.

When the camera 3 is attached to the main box 20, the first wireless communication module 313 is located on the opposite side to the position where the second wireless communication module 206 is provided. In this embodiment, as shown in FIG. 7, when the camera 3 is attached to the refrigerator 2, the first wireless communication module 313 is installed to the left of the center ST of the camera 3 in the left-right direction of the refrigerator 2 (the left-right direction of the camera 3). In other words, when the camera 3 is attached to the refrigerator 2, the first wireless communication module 313 is installed on the left door hinge member 205 side of the center ST of the camera 3. This ensures a distance between the first wireless communication module 313 and the second wireless communication module 206, thereby preventing radio wave interference between the first wireless communication module 313 and the second wireless communication module 206.

The position opposite to the position where the second wireless communication module 206 is provided is not limited to a position based on the center ST of the camera device 3 in the left-right direction of the refrigerator 2. The reference may be a specified part of the camera device 3. For example, the reference may be the right side surface of the camera device 3 or a circuit board provided on the camera device 3. The reference may also be a specified part of the refrigerator 2.

The photographing device 3 includes a metal part 314. The metal part 314 is installed on the opposite side of the position where the first wireless communication module 313 is installed when the photographing device 3 is attached to the main box body 20. In this embodiment, as shown in FIG. 7, when the photographing device 3 is attached to the refrigerator 2, a metal plate 314 is installed between the first wireless communication module 313 and the second wireless communication module 206 in the left-right direction. The metal plate 314 may be installed so as to cover the entire right inner surface 315 of the photographing member 31. The metal plate 314 may also be installed in a range including the first wireless communication module 313 in a side view on the right inner surface 315 of the photographing member 31. The metal plate 314 may also be installed so as to cover the entire right inner surface of the photographing device 3. By installing the metal plate 314, heat can be dissipated in the photographing device 3, and interference of radio waves between the first wireless communication module 313 and the second wireless communication module 206 can be further suppressed. In addition, the fireproof design can improve safety.
The metal plate 314 corresponds to the "metal part" in this disclosure.

Note that the position on the opposite side of the metal part 314 from the position where the first wireless communication module 313 is provided is not limited to the right inner surface 315 of the imaging member 31 or the right inner surface of the imaging device 3. The position on the opposite side from the position where the first wireless communication module 313 is provided may be a position based on a specific component within the imaging device 3. For example, the reference may be the boundary between the first wireless communication module 313 and another component.

FIG. 8 is a block diagram showing the configuration of the photographing device 3.
As shown in FIG. 8, the first control board 311 includes a first processor 320 such as a CPU (Central Processing Unit), a first memory 330, a first communication module 340, and an interface circuit to which other devices and sensors are connected.

The first memory 330 is a storage device that stores programs and data executed by the first processor 320. The first memory 330 is composed of a non-volatile storage device such as a ROM (Read Only Memory). The first memory 330 may also include a volatile storage device that constitutes the work area of the first processor 320, such as a RAM (Random Access Memory). The first memory 330 stores data processed by the first processor 320 and a control program 331 executed by the first processor 320.

The first communication module 340 has hardware such as a communication circuit and connectors that comply with a specified wired communication standard, and communicates with the second control board 312 under the control of the first processor 320.

The first processor 320 reads and executes the control program 331 to turn the power of the photographing device 3 on and off in response to the operation of the power button 32 .
In addition, the first processor 320 reads and executes a control program 331 to turn on and off the first LED 33 , the second LED 308 , and the third LED 309 .
In addition, the first processor 320 reads and executes the control program 331 to transmit the detection values output by each sensor connected to the first control board 311 to the second control board 312 via the first communication module 340.

The second control board 312 includes a second processor 350 such as a CPU, a second memory 360, a second communication module 370, and an interface circuit to which other devices and sensors are connected.

The second memory 360 is a storage device that stores programs and data executed by the second processor 350. The second memory 360 is configured by a non-volatile storage device such as a ROM. The second memory 360 may also include a volatile storage device such as a RAM that configures a work area for the second processor 350. The second memory 360 stores data processed by the second processor 350, a control program 361 executed by the second processor 350, and an imaging device ID (Identification) 362.
The photographing device ID 362 is information for uniquely identifying the photographing device 3 .

The second communication module 370 has hardware such as a communication circuit and connectors that comply with a specified wired communication standard, and communicates with the first control board 311 under the control of the second processor 350.

The second processor 350 reads and executes the control program 361 stored in the second memory 360, thereby functioning as a first communication control unit 351, a second communication control unit 352, an open/close determination unit 353, a photography control unit 354, a recording control unit 355, and a generation unit 356.

The first communication control unit 351 communicates with the item management server 5 via the first wireless communication module 313.

The second communication control unit 352 communicates with the first control board 311 via the second communication module 370. The second communication control unit 352 receives detection values of various sensors connected to the first control board 311 from the first control board 311.

The open/close determination unit 353 determines whether the right door 21B is open or closed based on the detection value of the first photosensor 303 received by the second communication control unit 352. When the second communication control unit 352 receives a detection value different from the detection value corresponding to the closed state, the open/close determination unit 353 determines that the right door 21B is open. On the other hand, when the second communication control unit 352 receives a detection value corresponding to the closed state, the open/close determination unit 353 determines that the right door 21B is closed.

The open/close determination unit 353 determines whether the left door 21C is open or closed based on the detection value of the second photosensor 304 by the second communication control unit 352, in the same manner as the determination for the right door 21B.

The open/close determination unit 353 determines whether the drawer 26A is open or closed based on the detection value of the thermopile 305 received by the second communication control unit 352. When the second communication control unit 352 receives a detection value of the thermopile 305 indicating a temperature below a predetermined temperature, the open/close determination unit 353 determines that the drawer 26A is open. On the other hand, when the second communication control unit 352 receives a detection value of the thermopile 305 indicating a temperature above the predetermined temperature, the open/close determination unit 353 determines that the drawer 26A is closed.

When the opening/closing determination unit 353 determines that the door 21A or the drawer 26A is open, the photography control unit 354 causes the wide-angle camera 301 and the narrow-angle camera 302 to start photographing. When the photography control unit 354 causes the wide-angle camera 301 and the narrow-angle camera 302 to start photographing, the second communication control unit 352 transmits lighting request information to the first control board 311. The lighting request information is information requesting that the second LED 308 and the third LED 309 be turned on. When the first processor 320 receives the lighting request information, it turns on the second LED 308 and the third LED 309 and notifies the user P that photographing has started.

When the opening/closing determination unit 353 determines that the door 21A and the drawer 26A are closed, the photography control unit 354 causes the wide-angle camera 301 and the narrow-angle camera 302 to end photography. When the photography control unit 354 causes the wide-angle camera 301 and the narrow-angle camera 302 to end photography, the second communication control unit 352 transmits turn-off request information to the first control board 311. The turn-off request information is information requesting that the second LED 308 and the third LED 309 be turned off. When the first processor 320 receives the turn-off request information, it turns off the second LED 308 and the third LED 309, and notifies the user P that photography has ended.

When the open/close determination unit 353 determines that the door 21A or the drawer 26A is open, the recording control unit 355 starts recording the images captured by the wide-angle camera 301 and the narrow-angle camera 302. That is, the recording control unit 355 starts recording the recorded data 363 in the second memory 360. The recorded data 363 includes first recorded data indicating the images captured by the wide-angle camera 301 and second recorded data indicating the images captured by the narrow-angle camera 302.

When the open/close determination unit 353 determines that the door 21A and the drawer 26A are closed, the recording control unit 355 ends recording the images captured by the wide-angle camera 301 and the narrow-angle camera 302.

The generating unit 356 generates the management data D1. The management data D1 is data to be uploaded to the item management server 5, and is data for managing the items stored in the refrigerator 2. The first communication control unit 351 transmits the management data D1 generated by the generating unit 356 to the item management server 5.

[1-1-4. Configuration of the item management server]
FIG. 9 is a block diagram showing the configuration of the terminal device 4 and the item management server 5. As shown in FIG.
The item management server 5 includes a server processor 50, which is a processor such as a CPU, a server memory 51, and a server communication module 52. The server processor 50 is connected to the server memory 51 and the server communication module 52.

The server memory 51 is a storage device that stores programs and data executed by the server processor 50. The server memory 51 is configured with a non-volatile storage device. The server memory 51 may also include a non-volatile storage device that configures a work area of the server processor 50. The server memory 51 stores data processed by the server processor 50, a control program 511 executed by the server processor 50, and an item management DB (database) 512.
The item management DB 512 has one record for each image capture device 3. This one record includes an image capture device ID 362, image data of the first captured image, and image data of the second captured image. The first captured image and the second captured image will be described later.

The server communication module 52 is equipped with a communication circuit and connector that conforms to a specific communication standard, and communicates with the refrigerator 2, the camera device 3, and the terminal device 4 via the network NW.

The server processor 50 reads and executes a control program 511 stored in the server memory 51 , thereby functioning as a server communication control unit 501 and a server processing unit 502 .
The server communication control unit 501 communicates with the refrigerator 2, the image capturing device 3, and the terminal device 4 via the server communication module 52.
The server processing unit 502 performs various information processes using the image capturing device 3 and the terminal device 4 as clients. The server processing unit 502 may also use the refrigerator 2 as a client.

[1-1-5. Configuration of terminal device]
Next, the configuration of the terminal device 4 will be described.
The terminal device 4 includes a terminal processor 40 , which is a processor such as a CPU, a terminal memory 41 , a terminal communication module 42 , and a touch panel 43 .

The terminal memory 41 is a storage device that non-volatilely stores the programs and data executed by the terminal processor 40. The terminal memory 41 is composed of a non-volatile storage device. The terminal memory 41 may also include a RAM that constitutes the work area of the terminal processor 40. The terminal memory 41 stores data processed by the terminal processor 40, control programs executed by the terminal processor 40, and the item management application 411.

The terminal communication module 42 includes a communication circuit and a connector that comply with a predetermined communication standard, and communicates with the item management server 5 under the control of the terminal processor 40 .
The touch panel 43 includes a display panel and a touch sensor that is provided over or integral with the display panel.

The terminal processor 40 functions as an application execution unit 400 .
The application execution unit 400 communicates with the item management server 5 via the terminal communication module 42 .
The application execution unit 400 displays a user interface related to management of items stored in the refrigerator 2 on the touch panel 43. In the following description, this user interface is referred to as an "application UI." The display control unit 402 of this embodiment displays images of items stored in the refrigerator 2 by displaying the application UI.
The application execution unit 400 receives various inputs from the user P via the application UI.

[1-2. motion]
Next, the operation of each part of the item management system 1 will be described.

[1-2-1. Recording-related operations]
First, the operation of the image-taking device 3 relating to recording will be described.
FIG. 10 is a flowchart FA showing the operation of the photographing device 3.

The open/close determination unit 353 determines whether the door 21A or the drawer 26A is in the open state (step SA1).

If the open/close determination unit 353 determines that the door 21A or the drawer 26A is not open (step SA1: NO), the second processor 350 returns the process to step SA1.

If the open/close determination unit 353 determines that the door 21A or the drawer 26A is open (step SA1: YES), the image capture control unit 354 causes the wide-angle camera 301 and the narrow-angle camera 302 to start capturing images (step SA2).

Then, the recording control unit 355 starts recording the images captured by the wide-angle camera 301 and the narrow-angle camera 302 (step SA3).

Then, the open/close determination unit 353 determines whether the door 21A and the drawer 26A are closed (step SA4). If the open/close determination unit 353 determines that the door 21A and the drawer 26A are not closed (step SA4: NO), it performs the determination in step SA4 again.

On the other hand, if it is determined that the door 21A and the drawer 26A are closed (step SA4: YES), the recording control unit 355 ends recording of the captured image (step SA5). As a result, recording data 363 is generated in the second memory 360.

Then, the shooting control unit 354 causes the wide-angle camera 301 and the narrow-angle camera 302 to end shooting (step SA6).

[1-2-2. Operations related to transmission of management data]
Next, the operation relating to the transmission of the management data D1 will be described.
FIG. 11 is a flowchart showing the operation of the image capturing device 3 and the item management server 5 .
In FIG. 11, a flowchart FB shows the operation of the image capturing device 3, and a flowchart FC shows the operation of the article management server 5.

The generating unit 356 determines whether or not the recording data 363 is stored in the second memory 360 (step SB1). If the generating unit 356 determines that the recording data 363 is not stored (step SB1: NO), it performs the determination of step SB1 again.

On the other hand, if the generation unit 356 determines that the recording data 363 has been stored (step SB1: YES), it selects the first captured image from the video indicated by the first recording data of the recording data 363 stored in the second memory 360 (step SB2).

Step SB2 will now be described in detail.
The first captured image is an image captured when the right door 21B and the left door 21C are opened at a rotation angle of α°≦θ≦β°, and is an image in which the user P is least reflected. α° is, for example, 60°. β° is, for example, 100°.

The generation unit 356 selects a captured image in which a specified marker attached to the door 21A appears from the video image indicated by the first recorded data. This specified marker is attached in advance so that it appears in the captured image when the angle of the right door 21B and the left door 21C is α°≦θ≦β°. Next, the generation unit 356 selects the captured image in which the user P is least reflected from the selected captured images as the first captured image. The generation unit 356 recognizes the user P appearing in the captured images by a method such as pattern matching, and sets the captured image in which the area of the image of the recognized user P is the smallest as the captured image in which the user P is least reflected.

Returning to the explanation of the flowchart FB, the generation unit 356 selects a second captured image from the video image indicated by the second recorded data of the stored recorded data 363 (step SB3).

Step SB3 will now be described in detail.
The second captured image is an image in which the drawer 26A is shown at a drawer-out degree of γ% or more, where 0% is the drawer-out degree in a closed state and 100% is the drawer-out degree in a fully open state. Note that the drawer-out degree refers to the degree to which the drawer is pulled out. The second captured image is also an image in which the user P is least reflected. γ% is, for example, 70%.

The generating unit 356 selects a captured image in which a specified marker attached to the inside of the drawer 26A appears from the video image indicated by the second recorded data. This specified marker is attached in advance so that it appears in the captured image when the drawer 26A is pulled out by γ% or more. Next, the generating unit 356 selects, from the selected captured images, the captured image in which the user P is least visible as the second captured image.

The generation unit 356 determines whether or not at least one of the first captured image and the second captured image has been selected (step SB4).

If the generation unit 356 determines that the first captured image and the second captured image could not be selected (step SB4: NO), it performs the process of step SB7.

On the other hand, if the generation unit 356 determines that at least one of the first captured image and the second captured image has been selected (step SB4: YES), it generates management data D1 (step SB5).

When the first captured image and the second captured image are selected, the generation unit 356 generates management data D1 including image data of the first captured image, image data of the second captured image, and the imaging device ID 362.
If the first captured image can be selected but the second captured image cannot be selected, the generation unit 356 generates management data D1 including image data of the first captured image and the imaging device ID 362.
If the second captured image can be selected but the first captured image cannot be selected, the generation unit 356 generates management data D1 including image data of the second captured image and the imaging device ID 362.

Then, the first communication control unit 351 transmits the management data D1 generated by the generation unit 356 to the item management server 5 (step SB6).

Then, the generation unit 356 erases the recording data 363 that was the subject of processing from step SB2 onwards from the second memory 360 (step SB7).

As shown in flow chart FC, the server communication control unit 501 determines whether or not it has received management data D1 from the image capture device 3 (step SC1). If the server communication control unit 501 determines that it has received management data D1 (step SC1: YES), the server processing unit 502 updates the item management DB 512 based on the management data D1 received by the server communication control unit 501 (step SC2).

Step SC2 will now be described in detail.
The server processing unit 502 identifies a record from the item management DB 512 that includes the imaging device ID 362 included in the management data D1, and updates the image data of the first captured image in the identified record to the image data of the first captured image included in the management data D1.
The server processing unit 502 identifies a record from the item management DB 512 that includes the imaging device ID 362 included in the management data D1, and updates the image data of the second captured image in the identified record to the image data of the second captured image included in the management data D1.

[1-2-3. Application UI-related operations]
Next, the operation of the item management system 1 related to the application UI will be described.
12 is a flowchart showing the operations of the terminal device 4 and the item management server 5. In FIG.

As shown in the flowchart FD, the application execution unit 400 determines whether or not to request image data stored in the item management DB 512 from the item management server 5 (step SD1). For example, the terminal communication control unit 401 makes a positive determination in step SD1 when the item management application 411 is launched.

If the application execution unit 400 determines to request image data stored in the item management DB 512 (step SD1: YES), it transmits request data requesting the image data to the item management server 5 (step SD2). The request data includes the imaging device ID 362 stored in the terminal memory 41. The terminal device 4 acquires the imaging device ID 362 at a predetermined timing.

As shown in flow chart FE, the server communication control unit 501 receives the request data (step SE1). Next, the server processing unit 502 acquires image data corresponding to the imaging device ID 362 included in the request data received by the server communication control unit 501 from the item management DB 512 (step SE2). Next, the server communication control unit 501 transmits the image data acquired by the server processing unit 502 to the terminal device 4 as a response to the request data (step SE3).

Referring to the flowchart FD, the application execution unit 400 receives image data from the item management server 5 (step SD3). Next, the application execution unit 400 displays an application UI including an image indicated by the image data received in step SD3 on the touch panel 43 (step SD4).

[1-3. Effects, etc.]
As described above, item management system 1 includes refrigerator 2 having main box body 20, and imaging device 3 attached to top surface 20A of main box body 20 and taking an image of refrigerator 2. Imaging device 3 includes first wireless communication module 313 capable of transmitting management data D1 for managing items stored in refrigerator 2. When imaging device 3 is attached to main box body 20, first wireless communication module 313 is located forward of opening 201 of main box body 20.

This makes it possible to prevent interference from the top surface 20A of the main box 20 from occurring in the radio waves transmitted and received by the first wireless communication module 313. This allows the first wireless communication module 313 to stably transmit the management data D1, thereby preventing a decrease in the accuracy of managing items.

The refrigerator 2 is equipped with a right door 21B and a left door 21C that open and close the opening 201, and a second wireless communication module 206 installed on a right door hinge member 204 that pivots the right door 21B. When the image capture device 3 is attached to the main box 20, the first wireless communication module 313 is located on the left door hinge member 205 side that pivots the left door 21C from the center ST of the image capture device 3 in the left-right direction of the refrigerator 2.

This ensures a sufficient distance between the first wireless communication module 313 and the second wireless communication module 206, thereby preventing radio wave interference between the first wireless communication module 313 and the second wireless communication module 206. This allows the first wireless communication module 313 to transmit the management data D1 more stably, further preventing a decrease in the accuracy of managing items.

The refrigerator 2 includes a right door 21B and a left door 21C that open and close the opening 201, and a second wireless communication module 206 that is installed on a right door hinge member 204 that pivots on the right door 21B. The image capture device 3 includes a metal plate 314. When the image capture device 3 is attached to the main box 20, the metal plate 314 is installed between the first wireless communication module 313 and the second wireless communication module 206 in the left-right direction of the refrigerator 2.

This can further reduce interference with radio waves between the first wireless communication module 313 and the second wireless communication module 206. As a result, the first wireless communication module 313 can transmit the management data D1 more stably, which can further reduce deterioration in the accuracy of managing items.

The refrigerator 2 has a door 21A that opens and closes the opening 201. When the image capture device 3 is attached to the main box 20, the first wireless communication module 313 is located in front of the door 21A in the closed state.

This can further reduce interference with the radio waves transmitted and received by the first wireless communication module 313. As a result, the first wireless communication module 313 can stably transmit the management data D1, which can further reduce deterioration in the accuracy of item management. Furthermore, even if the frame of the door 21A is made of metal, interference with the radio waves transmitted and received by the first wireless communication module 313 can be reduced, which can reduce deterioration in the accuracy of item management.

(Embodiment 2)
Next, a description will be given of embodiment 2. In the description of embodiment 2, the same components as those of each part of the item management system 1 of embodiment 1 will be given the same reference numerals and detailed description will be omitted as appropriate.

[2-1. Configuration]
FIG. 13 is a diagram showing the configuration of an item management system 1A in the second embodiment.
The item management system 1A in this embodiment includes a refrigerator 2A, an item management server 5, and a terminal device 4. While the refrigerator 2 and the photography device 3 in the above-mentioned embodiment 1 are separate entities, the refrigerator 2A in embodiment 2 includes the photography device 3A. That is, the refrigerator 2A and the photography device 3A in this embodiment are not separate entities.

FIG. 14 is a block diagram showing the configuration of a refrigerator 2A according to the present embodiment.
The refrigerator 2A includes a third control board 220. The third control board 220 includes a third processor 230 such as a CPU, a third memory 240, a third communication module 250, and an interface circuit to which other devices and sensors are connected.

The third memory 240 is a storage device that stores programs and data executed by the third processor 230. The third memory 240 is configured from a non-volatile storage device. The third memory 240 may also include a volatile storage device that configures the work area of the third processor 230. The third memory 240 stores data processed by the third processor 230 and a control program 241 executed by the third processor 230.

The third communication module 250 includes communication hardware such as a communication circuit and connectors that comply with a specific wired communication standard, and communicates with the first control board 311A under the control of the third processor 230.

The third control board 220 is connected to a second wireless communication module 206, a cooling unit 207, a first opening/closing sensor 208, a second opening/closing sensor 209, a third opening/closing sensor 210, a fourth opening/closing sensor 211, a fifth opening/closing sensor 212, and a sixth opening/closing sensor 213.

The cooling unit 207 includes mechanisms for cooling each storage compartment of the refrigerator 2A, such as a compressor, a condenser, a capillary tube, a cooler, a cooling fan that sends the cold air generated by the cooler to each storage compartment, and a damper that divides the cold air sent by the cooling fan. The cooling unit 207 cools each storage compartment of the refrigerator 2A under the control of the third control board 220.

The first open/close sensor 208 to the sixth open/close sensor 213 are each formed of, for example, a Hall IC.
The first opening/closing sensor 208 is a sensor for detecting whether the right door 21B is opened or closed.
The second opening/closing sensor 209 is a sensor for detecting whether the left door 21C is opened or closed.
The third open/close sensor 210 is a sensor for detecting whether the drawer 22A is open or closed.
The fourth open/close sensor 211 is a sensor for detecting whether the drawer 23A is open or closed.
The fifth open/close sensor 212 is a sensor for detecting whether the drawer 24A is open or closed.
The sixth opening/closing sensor 213 is a sensor for detecting whether the drawer 25A is opened or closed.
Each opening/closing sensor outputs a detection value to the third control board 220 .

The third processor 230 reads and executes the control program 241 to communicate with an external device via the second wireless communication module 206 .
In addition, the third processor 230 reads and executes the control program 241, thereby cooling each storage compartment of the refrigerator 2A by the cooling unit 207.
Furthermore, the third processor 230 reads and executes the control program 241 to transmit the detection values output by each of the first opening/closing sensor 208 to the sixth opening/closing sensor 213 to the first control board 311A.

Refrigerator 2A is equipped with imaging device 3A. Compared to imaging device 3, imaging device 3A does not have first photosensor 303, second photosensor 304, thermopile 305, human presence sensor 306, second LED 308, and third LED 309.

The image capturing device 3A in the second embodiment has a first control board 311A instead of the first control board 311. The power button 32, the first LED 33, and the illuminance sensor 307 are connected to the first control board 311A. The image capturing device 3A in the second embodiment also has a second control board 312A instead of the second control board 312. The wide-angle camera 301, the narrow-angle camera 302, and the first wireless communication module 313 are connected to the second control board 312A.

The first control board 311A is installed in the same position in the photographing device 3A as the first control board 311 in the photographing device 3.
Further, the second control board 312A is installed in the photographing device 3A at a position similar to that of the second control board 312 in the photographing device 3.
In this embodiment, the wide-angle camera 301, the narrow-angle camera 302, the power button 32, the first LED 33, the illuminance sensor 307, and the first wireless communication module 313 are installed in the same positions as those in the first embodiment.

The first control board 311A includes a first processor 320A such as a CPU, a first memory 330A, a first communication module 340A, and an interface circuit to which other devices and sensors are connected.

First memory 330A is a memory similar to first memory 330. First memory 330A stores data processed by first processor 320A and control program 331A executed by first processor 320A.

The first communication module 340A has communication hardware such as a communication circuit and connector that conforms to a specific wired communication standard, and communicates with the second control board 312A and the third control board 220 via cables.

The first processor 320A reads and executes the control program 331A to turn the power of the photographing device 3A on and off in response to the operation of the power button 32.
The first processor 320A reads and executes the control program 331A to turn the first LED 33 on and off.
The first processor 320A reads and executes the control program 331A, thereby transmitting the detection value output by the illuminance sensor 307 to the second control board 312A via the first communication module 340A.
The first processor 320A reads and executes the control program 331A, and transmits the detection values of the first opening/closing sensor 208 to the sixth opening/closing sensor 213 received from the third control board 220 to the second control board 312A via the first communication module 340A.

The second control board 312A includes a second processor 350A such as a CPU, a second memory 360A, a second communication module 370A, and an interface circuit to which other devices and sensors are connected.

The second memory 360A is a memory similar to the first memory 330. The second memory 360A stores data processed by the second processor 350A and a control program 361A executed by the second processor 350A.

The second communication module 370A has communication hardware such as a communication circuit and connectors that comply with a specified communication standard, and communicates with the first control board 311A under the control of the second processor 350A.

The second processor 350A reads and executes the control program 361A stored in the second memory 360A, thereby functioning as a first communication control unit 351, a second communication control unit 352A, an open/close determination unit 353A, a photography control unit 354, a recording control unit 355, and a generation unit 356.

The second communication control unit 352A communicates with the first control board 311A via the second communication module 370A. The second communication control unit 352A receives detection values of various sensors from the first control board 311A.

The open/close determination unit 353A determines whether the right door 21B is open or closed based on the detection value of the first open/close sensor 208 received by the second communication control unit 352A. When the second communication control unit 352A receives a detection value different from the detection value corresponding to the closed state, the open/close determination unit 353 determines that the right door 21B is open. On the other hand, when the second communication control unit 352A receives a detection value corresponding to the closed state, the open/close determination unit 353 determines that the right door 21B is closed.

The open/close determination unit 353A determines whether the left door 21C is open or closed based on the detection value of the second open/close sensor 209 by the second communication control unit 352, in the same manner as for the right door 21B.

The open/close determination unit 353A determines whether the drawer 26A is open or closed based on the detection values of the third open/close sensor 210 to the sixth open/close sensor 213 received by the second communication control unit 352. The open/close determination unit 353A performs the same determination as for the right door 21B.

[2-2. motion]
The operation of each part of the article management system 1A in this embodiment is the same as the operation of each part of the article management system 1 in the embodiment 1. That is, the operation of the image capture device 3A related to recording is the same as that in the embodiment 1. The operation of the camera 3A relating to the management data D1 is the same as that of the camera 3 in the first embodiment.

[2-3. Effects, etc.]
As described above, refrigerator 2A including main box 20 includes imaging device 3A that is provided on top surface 20A of main box 20 and captures images of refrigerator 2A. Imaging device 3A includes first wireless communication module 313 that can transmit management data D1 for managing items stored in refrigerator 2A. First wireless communication module 313 is located forward of opening 201 of main box 20.

This provides the same effects as the item management system 1 in embodiment 1.

Other Embodiments
As described above, the above-mentioned first and second embodiments have been described as examples disclosed in the present application. However, the technology in the present disclosure is not limited to these, and can be applied to embodiments in which modifications, substitutions, additions, omissions, etc. have been made. In addition, it is also possible to combine the components described in the above-mentioned first and second embodiments to form new embodiments. Therefore, other embodiments will be exemplified below.

In the above-mentioned first and second embodiments, metal plate 314 is exemplified as the "metal part" of the present disclosure. However, the "metal part" of the present disclosure is not limited to metal plate 314. For example, if second control board 311 is shielded by metal, the "metal part" of the present disclosure may be this shield. Second control board 311 is installed between first wireless communication module 313 and second wireless communication module 206 in the left-right direction of refrigerator 2. Therefore, this shield has the same effect as metal plate 314.

In the above-mentioned first and second embodiments, the third LED 309, the illuminance sensor 307, the motion sensor 306, the wide-angle camera 301, the narrow-angle camera 302, the thermopile 305, and the second LED 308 are arranged in this order at the front end of the imaging member 31. However, this arrangement is merely an example, and the arrangement of these devices is not limited to that of the first and second embodiments.

In the above-described second embodiment, the first photosensor 303, the second photosensor 304, the thermopile 305, the human sensor 306, the second LED 308, and the third LED 309 are not included. In other embodiments related to the second embodiment, any of these devices may be included.

In the above-mentioned first and second embodiments, the right door 21B and the left door 21C have different widths. In other embodiments, the right door 21B and the left door 21C may have the same width, or the left door 21C may have a greater width than the right door 21B.

In the above-described first and second embodiments, the second wireless communication module 206 is installed in the right door hinge member 204. In other embodiments, the second wireless communication module 206 may be installed in the left door hinge member 205. In this case, the left door 21 corresponds to the "first door" in this disclosure, the right door 21B corresponds to the "second door" in this disclosure, the left door hinge member 205 corresponds to the "first hinge member" in this disclosure, and the right hinge member 204 corresponds to the "second hinge member" in this disclosure.

In the above-described first and second embodiments, the imaging device 3, 3A is configured to include the second LED 308 and the third LED 309. In other embodiments, the second LED 308 and the third LED 309 may be configured as a single LED.

In the above-mentioned embodiment 1, the sensor for detecting whether drawer 26A is open or closed is configured with thermopile 305. However, the sensor for detecting whether drawer 26A is open or closed may be a distance sensor. In this case, open/close determination unit 353 determines whether drawer 26A is open or closed based on the detection value of the distance sensor. It detects that there has been movement when drawer 26A is pulled out. The distance sensor may be of an infrared type or an ultrasonic type.

In the above-mentioned second embodiment, the first opening/closing sensor 208 to the sixth opening/closing sensor 213 are configured with Hall ICs. However, the first opening/closing sensor 208 and the second opening/closing sensor 209 may be other sensors such as a distance sensor, an angle sensor, a camera, or a temperature sensor. Also, the third opening/closing sensor 210 to the sixth opening/closing sensor 213 may be other sensors such as an acceleration sensor, a mechanical switch, an angle sensor, a camera, or a temperature sensor.

In other embodiments, the camera may be configured to end recording or taking pictures a predetermined time after door 21A or drawer 26A is opened. For example, the predetermined time is one minute. If it is detected that door 21A or drawer 26A is open, that there is a person near refrigerator 2 or 2A, that user P is taking items in or out, etc., the predetermined time may be extended. Also, if it is detected that door 21A or drawer 26A is open, that there is a person near refrigerator 2 or 2A, that user P is taking items in or out, etc., the camera may end recording or taking pictures a predetermined time after the point of detection.

In another embodiment, the second LED 308 and the third LED 309 may be turned on when the opening/closing determination unit 353 determines that the door 21A or the drawer 26A is in the open state. Also, the second LED 308 and the third LED 309 may be turned off when the opening/closing determination unit 353 determines that the door 21A or the drawer 26A is in the closed state. Also, these LEDs may be controlled to be turned on or off depending on the shooting conditions of the camera. For example, in a configuration in which the camera stops recording or shooting a predetermined time after the door 21A or the drawer 26A is in the open state, these LEDs are turned off when the camera stops recording. Similarly, these LEDs may be turned off when the camera stops shooting.

In other embodiments, in addition to the functional units of the second processor 350, 350A in embodiments 1 and 2, the second processor 350, 350A may function as a detection unit that detects items. During the time from when the recording control unit 355 starts recording with the wide-angle camera 301 and the narrow-angle camera 302 to when it ends the recording, the detection unit may cut out an image of an item being put in or taken out of the refrigerator compartment 21 from the video. Also, if a marker is attached to the item, the detection unit may detect the item with the marker.

In another embodiment, in addition to the functional units of the second processor 350 in the first embodiment, the second processor 350 may function as a person presence determination unit. The person presence determination unit determines whether or not a person is present around the refrigerator 2 based on the detection value of the human presence sensor 306. More specifically, the person presence determination unit determines that a person is present around the refrigerator 2 when the detection value of the human presence sensor 306 corresponds to the presence of a person, and determines that a person is not present around the refrigerator 2 when the detection value of the human presence sensor 306 corresponds to the presence of a person. When the second processor 350 functions as a person presence determination unit, the shooting control unit 354 causes the wide-angle camera 301 and the narrow-angle camera 302 to start shooting when the person presence determination unit determines that a person is present, and causes the wide-angle camera 301 and the narrow-angle camera 302 to end shooting when the person presence determination unit determines that a person is not present. Also, when the second processor 350 functions as a person presence determination unit, the recording control unit 354 starts recording when the person presence determination unit determines that a person is present, and ends recording when the person presence determination unit determines that a person is not present. This allows the results of shooting by the wide-angle camera 301 and narrow-angle camera 302 to be recorded appropriately even if the open/close determination unit 353 makes an erroneous determination.

In other embodiments, in addition to the functional units of the second processor 350, 350A in embodiments 1 and 2, the second processor 350, 350A may function as an entry/exit determination unit. In this case, the entry/exit determination unit changes the boundary line used to determine entry/exit depending on the opening/closing angle of the left door 21C and the right door 21B, and determines whether an item is entry or exit. Also, depending on the degree to which the drawer 26A is pulled out, the entry/exit determination unit changes the boundary line used to determine entry/exit depending on the degree to which the drawer 26A is pulled out, and determines whether an item is entry or exit.

In another embodiment, the first captured image may be corrected and uploaded to the item management server 5. An example of image correction is viewpoint conversion correction.

In the above-described embodiment, the first captured image and the second captured image are used for display purposes on the terminal device 4. However, the first captured image and the second captured image may be used for other purposes, such as detecting items stored in the refrigerators 2 and 2A.

In other embodiments, the main box 20 of the refrigerator 2, 2A may have a number of storage compartments other than the five types described above, or may have fewer types. Also, in other embodiments, the number of doors provided at the opening 201 of the refrigerator compartment 21 may be one.

The first processor 320, 320A, the second processor 350, 350A, the server processor 50, and the terminal processor 40 may be configured as a single processor or as multiple processors. These processors may be hardware programmed to realize the corresponding functional units. That is, these processors may be configured as, for example, an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array).

The configurations of the image capture devices 3, 3A, refrigerators 2, 2A, terminal devices 4, and item management server 5 shown in Figures 8, 9, and 14 are merely examples, and the specific implementation form is not particularly limited. In other words, it is not necessarily necessary to implement hardware that corresponds to each unit individually, and it is also possible to implement a configuration in which one processor executes a program to realize the functions of each unit. Also, some of the functions realized by software in the above-mentioned embodiments may be hardware, or some of the functions realized by hardware may be software.

The step units of the operations shown in Figures 10, 11, and 12 are divided according to the main processing content in order to make the operations easier to understand, and the operation is not limited by the way in which the processing units are divided or their names. The operations may be divided into more step units depending on the processing content. Furthermore, one step unit may be divided so as to include even more processing. Furthermore, the order of the steps may be changed as appropriate within the scope of the purpose of this disclosure.

The above-described embodiments are intended to illustrate the technology disclosed herein, and various modifications, substitutions, additions, omissions, etc. may be made within the scope of the claims or their equivalents.

(Additional Note)
The above description of the embodiments discloses the following techniques.

(Technology 1) An item management system comprising: a refrigerator having a main box body; and a camera attached to a top surface of the main box body and taking an image of the refrigerator, the camera having a first wireless communication module capable of transmitting management data for managing items stored in the refrigerator, and the first wireless communication module is located in front of an opening of the main box body when the camera is attached to the main box body.
According to this configuration, interference from the top surface of the main box can be prevented from occurring in the radio waves transmitted and received by the first wireless communication module, and therefore the first wireless communication module can stably transmit the management data, thereby preventing a decrease in the accuracy of the management of items.

(Technology 2) The refrigerator is provided with a second wireless communication module, and the first wireless communication module is located on the opposite side of the position where the second wireless communication module is provided when the imaging device is attached to the main box body. This is an item management system described in Technology 1.
According to this configuration, the distance between the first wireless communication module and the second wireless communication module can be secured, and therefore interference of radio waves between the first wireless communication module and the second wireless communication module can be prevented. Therefore, the first wireless communication module can stably transmit the management data, and deterioration of the accuracy of the management of items can be further prevented.

(Technology 3) An item management system as described in Technology 2, wherein the refrigerator includes a first door and a second door for opening and closing the opening, the second wireless communication module is set to a first hinge member that pivots the first door, and the first wireless communication module is located on the second hinge member that pivots the second door side from the center of the camera in the left-right direction of the refrigerator when the camera is attached to the main box body.
According to this configuration, the distance between the first wireless communication module and the second wireless communication module can be secured, and therefore interference of radio waves between the first wireless communication module and the second wireless communication module can be prevented. Therefore, the first wireless communication module can stably transmit the management data, and deterioration of the accuracy of the management of items can be further prevented.

(Technology 4) An item management system described in any one of Technology 1 to Technology 3, wherein the photographing device has a metal part, and the metal part is installed on the opposite side to the position where the first wireless communication module is provided when the photographing device is attached to the main box body.
According to this configuration, the heat in the image capturing device can be dissipated while preventing the first wireless communication module from affecting radio waves transmitted and received. This makes it possible to prevent the heat in the image capturing device from affecting the processing of the image capturing device, so that the first wireless communication module can stably transmit management data, and the deterioration of the accuracy of the management of items can be further suppressed. In addition, the flame-retardant design improves safety, so the deterioration of the accuracy of the management of items can be further suppressed.

(Technology 5) An item management system described in any one of Technology 1 to Technology 4, wherein the refrigerator includes a first door and a second door for opening and closing the opening, and a second wireless communication module installed on a first hinge member that pivotally supports the first door, and the camera includes a metal part that is installed between the first wireless communication module and the second wireless communication module in the left-right direction of the refrigerator when the camera is attached to the main box body.
This configuration can further reduce interference of radio waves between the first wireless communication module and the second wireless communication module, thereby enabling the first wireless communication module to transmit management data more stably, thereby further reducing deterioration in the accuracy of item management.

(Technology 6) An item management system described in any one of Technology 1 to Technology 5, wherein the refrigerator is provided with a door that opens and closes the opening, and the first wireless communication module is positioned above the top surface of the door when the imaging device is attached to the main box body.
According to this configuration, interference with radio waves transmitted and received by the first wireless communication module can be further suppressed. Therefore, the first wireless communication module can properly transmit management data, and deterioration in the accuracy of managing items can be further suppressed. Even if the door is made of metal, interference with radio waves transmitted and received by the first wireless communication module can be suppressed, and deterioration in the accuracy of managing items can be suppressed.

(Technology 7) A refrigerator including a main box body, the refrigerator further including an imaging device provided on a top surface of the main box body and taking an image of the refrigerator, the imaging device including a first wireless communication module capable of transmitting management data for managing items stored in the refrigerator, the first wireless communication module being located forward of an opening of the main box body.
This configuration provides the same effects as the item management system described in Technology 1.

As described above, the item management system and refrigerator according to the present invention can be used to prevent a decrease in the accuracy of managing the items stored in the refrigerator.

1, 1A Item management system 2, 2A Refrigerator 3, 3A Photography device 4 Terminal device 5 Item management server 20 Main box 20A Top surface 21A Door 21B Right door (first door)
21C Left door (second door)
201 Opening 204 Right door hinge member (first hinge member)
205 Left door hinge member (second hinge member)
206 Second wireless communication module 310 Control board (shielding part)
311, 311A First control board 312, 312A Second control board 313 First wireless communication module 320, 320A First processor 330, 330A First memory 331, 331A Control program 340, 340A First communication module 350, 350A Second processor 351 First communication control unit 352, 352A Second communication control unit 353, 353A Open/close determination unit 354 Shooting control unit 355 Recording control unit 356 Generation unit 360, 360A Second memory 361, 361A Control program 362 Shooting device ID
363 Recording data 370, 370A Second communication module D1 Management data ST Center

Claims (7)

1. A refrigerator having a main box body;
   A photographing device attached to a top surface of the main box body and photographing the refrigerator,
   the photographing device includes a first wireless communication module capable of transmitting management data for managing items stored in the refrigerator,
   the first wireless communication module is located in front of an opening of the main box when the image capturing device is attached to the main box.
   Inventory management system.
2. the refrigerator includes a second wireless communication module;
   the first wireless communication module is located on the opposite side to the position where the second wireless communication module is provided when the photographing device is attached to the main box body.
   The article management system according to claim 1 .
3. the refrigerator includes a first door and a second door for opening and closing the opening,
   the second wireless communication module is set on a first hinge member that pivotally supports the first door,
   the first wireless communication module is located closer to a second hinge member pivotally supporting the second door than a center of the photographing device in a left-right direction of the refrigerator when the photographing device is attached to the main box body;
   The article management system according to claim 2.
4. The imaging device includes a metal part,
   the metal portion is disposed on an opposite side to a position where the first wireless communication module is disposed when the photographing device is attached to the main box body.
   The article management system according to any one of claims 1 to 3.
5. the refrigerator includes a first door and a second door which open and close the opening, and a second wireless communication module which is installed on a first hinge member which pivotally supports the first door,
   The imaging device includes a metal part,
   the metal part is installed between the first wireless communication module and the second wireless communication module in a left-right direction of the refrigerator in a state in which the photographing device is attached to the main box body.
   The article management system according to claim 4.
6. The refrigerator includes a door for opening and closing the opening,
   the first wireless communication module is located above a top surface of the door when the image capturing device is attached to the main box body;
   The article management system according to any one of claims 1 to 3.
7. A refrigerator having a main box body,
   A photographing device is provided on a top surface of the main box body and photographs the refrigerator,
   the photographing device includes a first wireless communication module capable of transmitting management data for managing items stored in the refrigerator,
   The first wireless communication module is located forward of an opening of the main box.
   refrigerator.

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