WO2023047614A1 - Inventory control system and storage - Google Patents

Inventory control system and storage Download PDF

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Publication number
WO2023047614A1
WO2023047614A1 PCT/JP2022/002770 JP2022002770W WO2023047614A1 WO 2023047614 A1 WO2023047614 A1 WO 2023047614A1 JP 2022002770 W JP2022002770 W JP 2022002770W WO 2023047614 A1 WO2023047614 A1 WO 2023047614A1
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WO
WIPO (PCT)
Prior art keywords
antenna
inventory management
door
warehousing
storage
Prior art date
Application number
PCT/JP2022/002770
Other languages
French (fr)
Japanese (ja)
Inventor
正二 林
哲 栗山
功一 梅澤
和規 原
浩平 京谷
一州 中島
Original Assignee
日立グローバルライフソリューションズ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日立グローバルライフソリューションズ株式会社 filed Critical 日立グローバルライフソリューションズ株式会社
Priority to CN202280030744.0A priority Critical patent/CN117203137A/en
Publication of WO2023047614A1 publication Critical patent/WO2023047614A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G1/00—Storing articles, individually or in orderly arrangement, in warehouses or magazines
    • B65G1/02—Storage devices
    • B65G1/04—Storage devices mechanical
    • B65G1/137—Storage devices mechanical with arrangements or automatic control means for selecting which articles are to be removed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/59—Responders; Transponders

Definitions

  • the present invention relates to an inventory management system and storage.
  • Patent Document 1 discloses a refrigerator in which food stored in the refrigerator is attached with an RFID (Radio Frequency Identifier) tag that records food information, and is stored in the refrigerator or both inside the refrigerator and outside the refrigerator. It is described to have an RFID tag reader and to have a database storing the food information read by the RFID tag reader.
  • RFID Radio Frequency Identifier
  • the operator when entering the refrigerator, the operator simply puts the package with the RFID tag inside the refrigerator, or if the RFID tag reader/writer is on the front door of the refrigerator, just hold it over the front of the refrigerator.
  • the RFID tag reader in the refrigerator periodically and repeatedly transmits radio waves, which are the resonance frequency of the RFID tag, to the RFID tag and reads the response wave from the food with the corresponding RFID tag. If there is no response, the food is recorded in the database as having been consumed, and is determined to be delivered.
  • Patent Document 2 includes a tag reader/writer device inside the storage. When the response from the RFID attached to the food is no longer detected, the control unit determines that the food has been taken out.
  • a null point is a point at which radio waves radiated from respective antennas interfere with each other and cancel each other out.
  • the tag reader/writer device cannot read the information recording carrier, the problem is that the article is judged not to exist in the storage.
  • the present invention solves the conventional problems described above, and aims to provide an inventory management system and storage that can appropriately manage inventory in the storage.
  • the inventory management system of the present invention comprises an in-warehouse entry antenna provided so as to be able to communicate with a wireless tag attached to an article stored in the storage, and An article information acquisition unit (for example, , tag reader/writer device) and an inventory management device for managing the articles in the storage based on the acquired article information, the inventory management device, when the door of the storage is open, and outputting radio waves from the antenna for exiting the garage, and outputting radio waves from the antenna for exiting the garage when the door is closed.
  • An article information acquisition unit for example, tag reader/writer device
  • an inventory management device for managing the articles in the storage based on the acquired article information
  • inventory management within the storage can be performed appropriately.
  • FIG. 4 is a flow chart showing an example of a processing procedure; It is a figure explaining the storage which provided the door with several antennas. It is a figure explaining other composition etc. of an inventory control device.
  • FIG. 4 is a flow chart showing an example of a processing procedure; It is a figure explaining the storage which provided the door with several antennas. It is a figure explaining other composition etc. of an inventory control device.
  • FIG. 10 is a diagram illustrating another storage with a plurality of antennas provided on the door; It is a figure explaining the shape of a drawer-type tray, (a) is the shape which notched a part of tray front side, (b) is the shape which provided the recessed part in the tray front side. It is a figure explaining the output timing of the electric wave of the antenna for entering a warehouse, and the antenna for leaving a warehouse.
  • this embodiment is an example of storing food in a storage such as a refrigerator in a kitchen.
  • the present invention is generally applicable to examples of storing articles other than food in spaces other than kitchens, such as production sites.
  • FIG. 1 is a diagram illustrating the configuration of an inventory management system 100 according to this embodiment.
  • the inventory management system 100 includes an inventory management device 1, a tag reader/writer device 6 and a tag reader/writer device 7 for reading and writing information on RFID (Radio Frequency Identifier) tags.
  • the tag reader/writer device 6 has a warehousing antenna 6A.
  • the tag reader/writer device 7 has an exit antenna 7A.
  • the inventory management device 1 is a general computer (server, PC, etc.).
  • the inventory management device 1 includes a central control device 11 , an input device 12 such as a mouse, keyboard, or touch panel, an output device 13 such as a display, a main storage device 14 , an auxiliary storage device 15 and a communication device 16 . These are interconnected by a bus.
  • the auxiliary storage device 15 stores open/close information 31, read information 32, and inventory information 33 (details will be described later).
  • the input/output processing unit 21 and the inventory management unit 22 in the main storage device 14 are programs.
  • the central control unit 11 reads out these programs from the auxiliary storage device 15 and loads them into the main storage device 14, thereby realizing the functions of each program (details will be described later).
  • the auxiliary storage device 15 may be configured independently from the inventory management device 1 .
  • the storage 4 has the tag reader/writer device 6 and the tag reader/writer device 7 described above.
  • the receiving antenna 6A is installed on the ceiling of the internal space of the storage 4 or the like.
  • the exit antenna 7A is installed outside the storage, for example, on the outer surface of a drawer.
  • the RFID tag 52 is attached to each food item 51, and the electronic chip in the RFID tag stores various data (code indicating information such as manufacturer name and item name) regarding the food item.
  • the tag reader/writer device 6 can read the data by radiating radio waves to the RFID tag 52 via the warehousing antenna 6A and receiving the reflected radio waves.
  • the tag reader/writer device 7 can read the data by irradiating radio waves to the RFID tag 52 via the warehousing antenna 6A and receiving the reflected radio waves.
  • the inventory management device 1 outputs radio waves from the warehouse entry antenna 6A when the door or lid (not shown) of the warehouse is open, and outputs radio waves from the warehouse exit antenna 7A when the door or lid is closed. Output radio waves.
  • the radio wave intensity of the antenna in the state where the antenna is outputting is: the antenna for entering the warehouse 6A>the antenna for leaving the warehouse 7A.
  • the RFID tag 52 is located on the outer surface of the storage and at the position where the antenna can be touched.
  • the exit antenna 7A reduces the radio wave intensity so that the tag cannot be detected unless the tag is touched (at a distance of about 0 to 5 cm). This prevents erroneous determination of delivery at the time of delivery.
  • the inventory management device 1 can communicate with the tag reader/writer device 6 and the tag reader/writer device 7 via the network 2, and sets the radio wave irradiation timing and irradiation power thereof based on the antenna/sensor setting screen 61 (see FIG. 8). can also be controlled by Furthermore, the inventory management device 1 can also communicate with door opening/closing sensors and drawer opening/closing sensors (not shown) via the network 2 . A human sensor (not shown) that detects the presence of a person in the kitchen 3 and an illuminance sensor (not shown) that detects the illuminance in the kitchen 3 are installed at arbitrary positions in the kitchen 3 . Inventory management device 1 can also communicate with these sensors via network 2 . Note that the inventory management device 1 may be integrated with the stocker 4 .
  • the inventory management device 1 can communicate with a terminal device 80 such as a smart phone, and the inventory management device 1 transmits inventory information 33 of the storage box 4 to the terminal device 80 based on an article viewing request from the terminal device 80. do.
  • the inventory management device 1 can delete the information of the item from the inventory list based on the item deletion request from the terminal device 80 .
  • the inventory management device 1 When the two-dimensional code is attached to the food 51 (goods), the inventory management device 1, when receiving the information of the two-dimensional code read from the terminal device 80, stores the information in the inventory information 33 held by the inventory management device 1. It is possible to add an article based on the information of the two-dimensional code to the inventory list based on it.
  • FIG. 2 is a diagram for explaining the position of the antenna and the state of radio waves when the door is closed.
  • the storehouse 4 in FIG. 2 is a general refrigerator.
  • the stocker 4 has four upper and lower storage chambers.
  • the storeroom door 41 and drawer 42 are closed.
  • An antenna 6A for entering is installed on the ceiling inside the uppermost storeroom.
  • the warehousing antenna 6A can read the RFID tag 52 existing within its own radio wave irradiation area 8 .
  • the door 41 is double-opening, and the exit antenna 7A is installed on the outer surface of the door on the left side of the storage cabinet 4 (the outer surface and the exit antenna 7A are arranged to be flush with each other). Installation).
  • the exit antenna 7A can read the RFID tag 52 existing within the radio wave irradiation area 9 of itself.
  • the exit antenna 7A has a low radio wave intensity so that the tag cannot be detected unless the tag is touched (at a distance of about 0 to 5 cm) (the touch is performed by the user).
  • the inventory management device 1 outputs radio waves from the leaving antenna 7A and stops outputting radio waves from the entering antenna 6A. Note that 0 to 5 cm is an example.
  • the time period in which the antenna for entering the warehouse 6A and the antenna for exiting the warehouse 7A each output radio waves is divided with the door closed as a boundary, but this is an example and is described in "(c) Antenna Output Timing". Details of the operating conditions are described below.
  • the warehousing antenna 6A is installed facing downward (to emit radio waves downward) on the ceiling surface of the uppermost storage room.
  • the receiving antenna 6A is located on the floor of the uppermost storage room, and when the door 41 is open, the article holding means 43 can be seen from directly below (reference numeral 45 in FIG. 3). (so as to radiate radio waves upward).
  • FIG. 3 is a diagram explaining the position of the antenna and the state of radio waves when the door 41 is open.
  • the door 41 is open.
  • the inventory management device 1 outputs radio waves from the receiving antenna 6A and outputs radio waves from the leaving antenna 7A. Output is stopped.
  • the right door of the double door 41 facing the storage 4 is opened approximately 90 degrees, and the left door is opened approximately 180 degrees.
  • FIG. 4 is a diagram explaining the position of the antenna and the state of radio waves when the drawer 44 is open.
  • the door 41 and the drawer 42 are closed, and the drawer 44 of the third storeroom from the top is open.
  • An antenna 6A for entering the warehouse is installed on the ceiling inside the storage room on the third stage from the top.
  • the warehousing antenna 6A can read the RFID tag 52 existing within its own radio wave irradiation area 8 .
  • the inventory management device 1 outputs radio waves from the warehousing antenna 6A and stops outputting radio waves from the warehousing antenna 7A.
  • the number of warehousing antennas 6A is greater than or equal to the number of warehousing antennas 7A.
  • the storage 4 has a plurality of storage compartments, each storage compartment of the storage 4 is provided with an incoming antenna 6A, and the outer surface of the storage 4 is provided with an outgoing antenna 7A. 2 to 4, the entering antenna 6A in each storage room is connected to the tag reader/writer device 6 via a switch (not shown), and the leaving antenna 7A is connected to the tag reader/writer device 7. It is
  • Arrangement of warehousing antenna 6A (a1)
  • the storage room is a door type: (i) bottom surface of the refrigerator compartment (below the door pocket when the door is closed), (ii) near the ceiling light, (iii) walls on both sides of the chamber, or a combination of the two. Since the receiving antennas are provided at these positions, for example, even if a storage pocket is provided inside the door and the food is stored in the pocket, the RFID tag 52 attached to the food is stored when the door is closed.
  • the receiving antenna 6A and the RFID tag 52 may move closer to each other. Since the RFID tag 52 moves to a position with a different distance, angle, etc., the RFID tag 52 can be recognized by the warehousing antenna 6A.
  • the storage room is of a drawer type (drawer type):
  • the storage room (vegetable room, freezer room, etc.) is arranged on the ceiling on the front side.
  • a movable (pullable) tray is provided inside the drawer, the shape is such that a portion of the front side of the tray is notched or a recess is provided.
  • FIG. 13A and 13B are diagrams for explaining the shape of the drawer-type tray, where (a) is a shape in which a part of the front side of the tray is notched, and (b) is a shape in which a concave portion is provided on the front side of the tray. Note that FIG. 13 shows a shape viewed from above (planar view).
  • the RFID tag 52 can be read from a long distance by an antenna provided in the warehousing and can be automatically recognized.
  • a plurality of antennas for entering may be provided near the entrance of the storage room.
  • the exit antenna 7A one antenna (recognition position) may be placed at a position that can be touched when the door is closed, and an RFID tag may be touched to the exit antenna 7A.
  • FIG. 5 is an example of the opening/closing information 31.
  • the door is stored in the door column 102
  • the open/close state is stored in the open/close state column 103
  • the antenna irradiation power is stored in the antenna irradiation power column 104, in association with the date and time stored in the date and time column 101. ing.
  • the time in the date and time column 101 is the time when the warehousing antenna 6A and the warehousing antenna 7A emitted radio waves.
  • the door of the door column 102 is a number that uniquely identifies the door of the storage 4 . It should be noted that the door here is a concept that also includes a drawer.
  • the open/close state in the open/close state column 103 is either "open” indicating that the door is open or "closed” indicating that the door is closed.
  • the antenna irradiation power in the antenna irradiation power column 104 is the irradiation power of the entering antenna 6A (column 104a) and the irradiation power of the leaving antenna 7A (column 104b). All units are "dBm”.
  • the user can set the irradiation power of the entrance antenna 6A and the irradiation power of the exit antenna 7A for each open/closed state of the door.
  • the irradiation power of the entrance antenna 6A and the irradiation power of the exit antenna 7A may be "not irradiated”.
  • the inventory management device 1 transmits radio waves to one or both of the warehousing antenna 6A and the warehousing antenna 7A at intervals of 2 seconds. be irradiated at the same time. Details of the operation of outputting radio waves from one or both of the entering antenna 6A and the leaving antenna 7A will be described in "(c) Antenna Output Timing".
  • the uppermost storage room has an antenna 6A for entering on the ceiling surface and a double door 41 on the front. It has the exit antenna 7A on the front surface of the door 41 (see FIG. 2).
  • the exit antenna 7A on the front surface of the door 41 (see FIG. 2).
  • FIG. 6 is an example of read information 32 .
  • the date and time stored in the date and time column 111 are associated with the antenna in the antenna column 112, the antenna received power in the antenna received power column 113, and the manufacturer name (food product) in the manufacturer name column 114.
  • the item name field 115 stores the item name
  • the movement field 116 stores the movement flag.
  • the date and time in the date and time column 111 is the date and time when the receiving antenna 6A or the leaving antenna 7A received the radio wave from the RFID tag 52, that is, when the RFID tag 52 was read. Also, when data is received from the terminal device 80 (see FIG. 1), it is the date and time.
  • the antenna in the antenna column 112 is either "for warehousing”, “for warehousing”, or “terminal”.
  • "For warehousing” indicates that the antenna that read the RFID tag 52 is the warehousing antenna 6A.
  • Form leaving indicates that the antenna that read the RFID tag 52 is the leaving antenna 7A.
  • Terminal indicates that data has been received from the terminal device 80 (see FIG. 1).
  • the antenna reception power in the antenna reception power column 113 is the power (strength) of the radio wave received by the warehousing antenna 6A or the warehousing antenna 7A from the RFID tag 52, and the unit is "dBm".
  • the manufacturer name in the manufacturer name column 114 is the food manufacturer name obtained by comparing the code read from the RFID tag 52 with the database.
  • the item name in the item name column 115 is the food name (common noun) obtained by collating the code read from the RFID tag 52 with the database.
  • the movement flag in the movement column 116 indicates that the inventory management device 1 has detected movement of food from outside to inside, or that it has detected movement of food from inside to outside. It is any of the "outgoing" shown.
  • the example in FIG. 6 corresponds to the example in FIG. Looking at FIG. 6, for example, the following can be understood. ⁇ 10:00:00 on September 15, 2021> At this time, the door was open (see Figure 5).
  • the tag reader/writer device 6 reads "Udon” from “Company A”, “Yogurt” from “Company C”, and “Dressing” from “Company B” via the warehousing antenna 6A.
  • the inventory management device 1 compares the read information at 10:00:00 with the read information at 9:59:58, and finds "Udon” from “Company A”, “Yogurt” from “Company C”, and “Yogurt” from “Company B". Confirmed that the "dressing" in "" is in stock.
  • the tag reader/writer device 6 reads "Udon” from “Company A”, “Yogurt” from “Company C”, “Dressing” from “Company B”, and “Bottled beer” from “Company D” via the warehousing antenna 6A. read.
  • the inventory management device 1 compared the read information at 10:00:02 with the read information at 10:00:00, and confirmed that "bottled beer” from "Company D" was an incoming item.
  • the tag reader/writer device 6 reads "Udon” from “Company A” and “Bottle beer” from “Company D” via the receiving antenna 6A.
  • the inventory management device 1 has confirmed that "Udon” from “Company A” and “Bottle beer” from “Company D” are in stock.
  • the inventory management device 1 accepts from the terminal device 80 (see FIG. 1) as an incoming item of "egg” of "E company”.
  • the RFID tag 52 is not attached to the “egg” of “E Company”, and it is considered that the information of the two-dimensional code is read by the terminal device 80 .
  • FIG. 7 is an example of the inventory information 33.
  • the date and time column 121 indicates the time
  • the inventory position column 122 indicates the inventory position
  • the manufacturer name column 123 indicates the manufacturer name
  • the item name column 124 indicates the item name
  • the receipt date column 125 indicates the name of the manufacturer.
  • the warehousing date and the summary are stored in the summary column 126 .
  • the warehousing date column 125 may be a warehousing date and time column.
  • the time in the date and time column 121 is the time when the inventory is fixed.
  • the inventory position in the inventory position column 122 is the location of a plurality of storages.
  • the manufacturer name in the manufacturer name column 123 is the same as the manufacturer name in FIG.
  • Item names in the item name column 124 are the same as the item names in FIG.
  • the warehousing date in the warehousing date column 125 is used when judging whether or not the product has been staying in the storage 4 for a long time.
  • the summary of the summary column 126 is whether or not it is "stocking".
  • the tag reader/writer device 6 reads “udon” from “Company A” and “bottled beer” from “Company D” via the warehousing antenna 6A. It is read, but it is not read “Dressing” of "B Company”.
  • the detection information of the output of the antenna 6A for warehousing is acquired only by the event driven of , and it is judged whether it is "warehousing" of the summary column 126 or not.
  • FIG. 8 is an example of the antenna/sensor setting screen 61 .
  • the inventory management device 1 receives settings related to the antenna and the like on the antenna/sensor setting screen 61 from the user of the inventory management device 1 .
  • the positional relationship between the entering antenna 6A, the leaving antenna 7A, and the door 41 in FIG. 8 is as shown in FIGS.
  • the user normally selects "use” in the entry antenna 6A column 62 and also selects "use” in the exit antenna 7A column 63.
  • ⁇ indicates selection and ⁇ indicates non-selection.
  • the leaving antenna 7A can be set to "not used”.
  • the user can set the irradiation power when the door is opened in the field 62a and the irradiation power when the door is closed in the field 62b.
  • the user selects "use” for the exit antenna 7A, the user can set the irradiation power when the door is closed in the field 63a and the irradiation power when the door is closed in the field 63b.
  • the radio wave irradiation intensity should be high.
  • the RFID tag 52 is touched or read by bringing it close, so the radio wave irradiation intensity may be low. That is, it is set like "# io ># oc ".
  • Entry of food into the storage can be detected while the door 41 is open.
  • a touch sensor (capacitance sensor) is attached to the handle of the door, etc. When the user touches the handle to open the door, the touch sensor turns on. A configuration in which "open" is detected (that is, radio wave irradiation is started) may be used.
  • the user selects either “use” or “do not use” in the kitchen human detection sensor column 64.
  • the user selects "use” when desiring to process delivery only when there is a person in the kitchen.
  • the user selects either “use” or “do not use” in the kitchen interior illuminance sensor field 65 .
  • the user selects "use” when desiring to perform the leaving process only when a person enters the kitchen at night.
  • Use may be selected in at least one of the in-kitchen human sensor field 64 or the in-kitchen illuminance sensor field 65.
  • the inventory management device 1 outputs the irradiation power of the exit antenna 7A when the human sensor detects a person or when the illuminance sensor detects illuminance equal to or greater than a predetermined threshold.
  • the user sets the radio wave irradiation period of the warehousing antenna 6A and the warehousing antenna 7A in the antenna radio wave irradiation period column 66.
  • the user selects fields 66b and 66f, enters, for example, "1" in “[]” of field 66b, and enters, for example, "90” in []” of field 66f.
  • the user selects "use” in the kitchen human sensor column 64
  • the user selects the column 66c and/or the column 66g and enters an appropriate value in “[ ]”.
  • select the column 66d and/or the column 66h select an appropriate value in "[]".
  • the irradiation power is input by the user.
  • the provider of the storage box 4 may set the power to "36 dBm or less" if a wireless license is required. If no radio license is required, an appropriate value may be set according to regulations, such as "27 dBm" or less.
  • the user can select from three levels: strong (if a radio base station license is supported), medium (if a radio base station application is not required), and weak (if a radio base station application is not required). may
  • the warehousing antenna 6A also has a feature that it is easier to receive radio waves from the RFID tag 52 .
  • the drawer 44 is closed, the distance and direction between the RFID tag 52 attached to the food stored in the drawer 44 and the warehousing antenna 6A changes.
  • the warehousing antenna 6A also has the feature of being able to receive radio waves from the RFID tag 52 more easily.
  • FIG. 9 is a flow chart showing an example of a processing procedure.
  • step S201 the input/output processing unit 21 of the inventory management device 1 determines whether or not it is detected that the door 41 has been opened. If the door 41 has not been opened (step S201, No), the process returns to step S201. If the door 41 is opened (step S201, Yes), the process proceeds to step S202.
  • step S202 the input/output processing unit 21 causes the tag reader/writer device 6 to start outputting radio waves from the warehousing antenna 6A. Specifically, the input/output processing unit 21 emits radio waves from the warehousing antenna 6A and receives the reflected radio waves. At this time, the warehousing antenna 6A simultaneously reads RFID tags attached to a plurality of foods.
  • step S203 the tag reader/writer device 6 transmits read information from the RFID tag to the input/output processing unit 21 of the inventory management device 1, and the input/output processing unit 21 stores it as read information 32.
  • step S204 the input/output processing unit 21 of the inventory management device 1 determines whether or not it is detected that the door 41 is closed. If the door 41 is not closed (step S204, No (open)), step Returning to S203, if the door 41 is closed (step S204, Yes (closed)), the process proceeds to steps S205 and S208.
  • step S205 the tag reader/writer device 6 transmits read information from the RFID tag to the input/output processing unit 21 of the inventory management device 1, and the input/output processing unit 21 stores it as read information 32.
  • step S206 the input/output processing unit 21 determines whether or not the set time (for example, 1 second in the column 66b) of the warehousing antenna 6A set on the antenna/sensor setting screen 61 has elapsed. If it has not elapsed (step S206, No), the process returns to step S205, and if the set time has elapsed (step S206, Yes), the process proceeds to step S207.
  • the set time in step S206 may be zero. Details of the time set in step S206 will be described in "(c) Antenna Output Timing".
  • step S207 the input/output processing unit 21 causes the tag reader/writer device 6 to stop outputting radio waves from the warehousing antenna 6A.
  • step S208 the input/output processing unit 21 causes the tag reader/writer device 7 to start outputting radio waves from the exit antenna 7A. Specifically, the input/output processing unit 21 emits radio waves from the exit antenna 7A and receives the reflected radio waves.
  • step S209 the tag reader/writer device 7 transmits read information from the RFID tag to the input/output processing unit 21 of the inventory management device 1, and the input/output processing unit 21 stores it as read information 32.
  • step S210 the input/output processing unit 21 determines whether or not the set time for the exit antenna 7A set on the antenna/sensor setting screen 61 (for example, 90 seconds in the column 66f) has elapsed. If it has not elapsed (step S210, No), the process returns to step S209, and if the set time has elapsed (step S210, Yes), the process proceeds to step S211.
  • the set time for the exit antenna 7A set on the antenna/sensor setting screen 61 for example, 90 seconds in the column 66f
  • step S211 the input/output processing unit 21 causes the tag reader/writer device 7 to stop outputting radio waves from the exit antenna 7A.
  • step S212 the input/output processing unit 21 updates the inventory information 33 based on the read information 32, and returns to step S201.
  • the inventory management system 100 can appropriately manage the entry and exit of the stocker 4 .
  • the functions and features of inventory management system 100 are further described.
  • (a) Recognition of RFID tag when entering/exiting the RFID tag can be read from a distance by the antenna for entering/exiting 6A provided in the warehouse, and can be automatically recognized.
  • the exit antenna 7A recognition position
  • the RFID tag is touched to the exit antenna 7A (at a distance of about 0 to 5 cm, which is called a touch).
  • the radio wave intensity is reduced so that the RFID tag can be detected, that is, the radio wave intensity can be detected only in the vicinity.
  • the user When entering the warehouse, the user opens the door and puts the food/ingredients with the RFID tag into the warehouse. At that time, since the RFID tag is placed in the storage while moving, the relative position of the null point of the radio wave of the antenna for entering the storage inside the storage or the RFID tag hidden in the shadow of the metal object changes due to the movement. It is possible to prevent undetected storage. Since it is possible to prevent undetected warehousing at the time of warehousing, there is no need to update the inventory list periodically, such as the steady state in which the door is closed at the time of inventory, and the "outgoing" in Patent Document 1 and Patent Document 2. erroneous determination can be prevented.
  • the user when leaving the store, the user can bring the food with the RFID tag near the delivery antenna while the door is closed, read the RFID tag, and appropriately detect the delivery.
  • the food/ingredients once taken out are moved to the counter, and the next item may be taken out in succession.
  • the time that the food with the RFID tag exists between the RW antenna (read write antenna) and the user is short, and the radio waves are blocked by the user's body.
  • the RFID tag could not be read by the antenna installed in the refrigerator, it was not possible to recognize that the refrigerator had left the warehouse.
  • the RFID tag can be moved between the shipping antenna 7A, which is a RW antenna, and the user, although it is one item at a time when the item is retrieved. Then, the delivery can be reliably recognized.
  • the number of items that can be picked up and taken out at one time is limited. As a result, it is possible to suppress cold air from leaving the refrigerator and air around the refrigerator from flowing into the refrigerator due to the door being left open, thereby suppressing an increase in power consumption.
  • Antenna output (radio field intensity) is such that entry antenna > exiting antenna. It can be set on the antenna/sensor setting screen shown in FIG.
  • a distribution RFID tag (antenna size: about 22 ⁇ 44 mm) can be recognized even at a distance of about 5 cm from the antenna with an output of about 10 dBm.
  • recognizing RFID tags separated by a distance of about 0 to 5 cm is defined as touch recognition.
  • the radio wave intensity of the antenna in the output state is, as described above, the antenna for entering the warehouse>the antenna for leaving the warehouse.
  • the maximum distance for the antenna to recognize the RFID tag is the configuration of the antenna for entering > the antenna for leaving, and automatic recognition of entering and manual recognition of leaving by touch are possible.
  • the exit antenna 7A is preferably an antenna capable of detecting short distances with a communication distance of 5 cm or less.
  • Each of the entering/leaving antennas outputs a pulsed radio wave with a period of 100 milliseconds. Based on the timing of this pulse, the time during which the receiving antenna 6A emits radio waves after the door/drawer is closed (set time in step S206) and the configuration of the reader/writer are determined as follows.
  • FIG. 14 is a diagram showing the output timing of the radio waves of the warehousing antenna 6A and the warehousing antenna 7A.
  • the horizontal axis represents time
  • the upper side indicates the output timing of the warehousing antenna 6A
  • the lower side indicates the output timing of the warehousing antenna 7A.
  • a radio wave is output on the upper side of the rectangular wave indicating the output timing, and no radio wave is output on the lower side.
  • the period of the pulses forming the rectangular wave is generally on the order of 100 milliseconds, but this is just an example and may be of other lengths.
  • Case (1) The time set in step S206 is zero seconds.
  • only the entry antenna 6A outputs radio waves when the door/drawer is open, and only the exit antenna 7A outputs radio waves after the door/drawer is closed.
  • the radio wave irradiation region 8 of the entering antenna 6A shown in FIG. 2 may partially overlap with the radio wave irradiation region 9 of the leaving antenna 7A when the door/drawer is closed. This is because the tag is not read by the warehousing antenna 6A at the time of leaving the warehousing, so that an erroneous determination does not occur.
  • Case (2) The time set in step S206 is greater than zero seconds.
  • the reader/writer for the entering antenna 6A and the reader/writer for the leaving antenna 7A are connected as in the case of (1). It is desirable to have either a configuration consisting of a single reader/writer or a configuration in which a switch is inserted at the output end of one reader/writer and the connection path to the receiving antenna 6A and the leaving antenna 7A.
  • the radio wave irradiation region 8 of the entering antenna 6A shown in FIG. 2 may partially overlap with the radio wave irradiation region 9 of the leaving antenna 7A when the door/drawer is closed. This is for the following reasons.
  • the radio wave output slots of the warehousing antenna 6A and the warehousing antenna 7A do not overlap, so there is no interference with the tag reading signal.
  • the RFID tag could not be read by the exit antenna 7A after the door/drawer was closed, but could be read by the entrance antenna 6A, this is a case where the user did not request management of exit (such as seasonings, which are This is because the inventory control function provided by the present invention is not impaired because the inventory management function provided by the present invention is not required.
  • Case (3) The time set in step S206 is greater than zero seconds.
  • at least two reader/writers one connected to the entering antenna 6A and the other connected to the leaving antenna 7A, are used. Configured.
  • the radio wave irradiation region 8 of the entrance antenna 6A shown in FIG. 2 does not overlap with the radio wave irradiation region 9 of the exit antenna 7A when the door/drawer is closed. This is because there is a risk that signal interference will occur and the tag information will not be able to be read accurately due to the overlap of the slots from which the receiving antenna 6A and the leaving antenna 7A output radio waves. Therefore, it is desirable to arrange a metal object as a radio wave shielding material or a heat insulating material coated with an aluminum deposition material on the front surface of the door 41 or the drawer 42 or the drawer 44 .
  • Case (4) The time set in step S206 is greater than zero seconds.
  • the slots from which the entering antenna 6A and the leaving antenna 7A output radio waves partially overlap, there are at least two reader/writers, one connected to the entering antenna 6A and the other connected to the leaving antenna 7A.
  • the exit antenna 7A emits radio waves for about 30 seconds to 1 minute, for example. It can be set arbitrarily on the antenna/sensor setting screen shown in FIG.
  • a door open/close sensor may be used to acquire door/drawer open/close information.
  • the door open/close sensor it is also possible to recognize the exit of the warehouse (used up, such as disposal) even after the door is opened and closed by using the motion sensor, the camera outside the warehouse, the camera inside the warehouse (activated when the door is opened), and the touch sensor.
  • a touch switch or a mechanical switch for activating the exit antenna 7A may be provided near the exit antenna 7A.
  • the exit antenna 7A can be turned on without opening the door.
  • the antenna does not need to constantly output radio waves, and by detecting user actions such as door opening and closing, system operation start can be event-driven, thereby suppressing an increase in power consumption.
  • it is possible to detect for a certain period of time after the door is closed so that it can be recognized even when a plurality of items have been taken out.
  • the user does not need to recognize that the items have been taken out of the warehouse by the exit antenna 7A. Even if the user does not recognize the delivery, if the receipt is re-recognized, it can be changed to warehousing/inventory. It is also possible to not recognize the delivery when the product is taken out of the refrigerator, but to recognize the delivery when the product is discarded because it has been used up after being taken out (like a dressing). If it is on the inventory list, keep the inventory list as it is. If it is not in the inventory list, it is added to the inventory list as a newly received item. Since the inventory list can be updated according to the user's intention, it is possible to provide a user-friendly one.
  • FIG. 10 is a diagram for explaining a storage with a plurality of antennas provided on the door 41.
  • a plurality of antennas are provided on the door 41 as compared with FIG.
  • the exit antenna 71A can read the RFID tag 52 existing within the radio wave irradiation area 9 itself.
  • the ordering antenna 72A can read the RFID tag 52 existing within the radio wave irradiation area 9 of itself.
  • the radio wave intensity of the leaving antenna 71A and the ordering antenna 72A is reduced so that the RFID tag 52 cannot be detected unless the RFID tag 52 is touched (at a distance of about 0 to 5 cm).
  • the inventory management apparatus 1 When the door 41 is closed, the inventory management apparatus 1 outputs radio waves from the leaving antenna 71A and the ordering antenna 72A, and stops outputting radio waves from the entering antenna 6A.
  • FIG. 11 is a diagram for explaining another configuration and the like of the inventory management device 1. As shown in FIG. 11, an order management unit 23 is added to the main storage device 14, and order information 35 is added to the auxiliary storage device 15, as compared with FIG.
  • the RFID tag 52 When the RFID tag 52 is touched (recognised) to the exit antenna 71A when exiting the warehouse, it is deleted from the inventory list based on the inventory information 33. This processing is sufficient for items that are not regular supplies, items that do not need to be purchased immediately, or items that only need to know the history of use.
  • the RFID tag 52 When the RFID tag 52 is touched (recognized) by the order antenna 72A when leaving the warehouse, it is registered in the order list based on the order information 35 and deleted from the inventory list. Since out-of-stock products are not registered in the inventory list, it is difficult to create an order list while remembering products that are likely to run out of stock at a later date. However, by using the above-described method, it is possible to avoid creating an order list while remembering products that are likely to run out of stock at a later date. For example, if you want to prevent regular supplies and shortages, you can place an order from the order list to avoid running out of regular supplies.
  • the user may always store one or more dressings in the refrigerator.
  • One dressing can be confirmed in the inventory list, but when the bottle is opened, touching (recognising) the RFID tag 52 to the ordering antenna 72A allows it to be registered in the order list, before the dressing in the inventory is used up. , you can also check the order list and replenish. In this way, it is preferable to allow the confirmation and setting of the inventory list and the order list using the smartphone or the like of the terminal device 80 (see FIG. 1).
  • FIG. 12 is a diagram for explaining another storage with a door 41 provided with a plurality of antennas.
  • FIG. 12 shows a case in which a plurality of touch antennas for ordering are provided on the door 41 in comparison with FIG. That is, the door 41 of the double-opening type is provided with an unloading antenna 71A, an ordering antenna 72A, and an ordering antenna 73A.
  • the door 41 of the refrigerator is provided with touch antennas for the refrigerator and for ordering in the cabinet in the kitchen.
  • warehousing/leaving/ordering is managed using the warehousing antenna 71A and the ordering antenna 72A.
  • the ordering antenna 73A is used to place an order for items in the warehouse as stock items. Specifically, when using the stock wrap, it is good to use it to place an order for replenishment.
  • the inventory management device 1 may create an order list from the delivery list of delivered items, or place an order from the created order list.
  • Foods and foodstuffs registered in the inventory list based on the inventory information 33 can be registered (flagged) as regular items in the inventory list, and can be automatically registered in the order list by recording delivery. For example, the user can move to the order list from a delivery list for one week or an arbitrarily set (for example, 10) latest delivery list that saves the latest delivery.
  • the terminal device 80 may be notified of additions to the shopping list and the automatic order list/recommendations for additions to items deleted from the inventory list. After placing an order to EC (Electronic Commerce) etc. from the order list, the ordered item is deleted from the order list.
  • EC Electronic Commerce
  • the order list can be deleted from Order destinations can be recommended in order of a specific EC site or an EC site with the lowest total price on the order list.
  • the terminal device 80 such as a smartphone of the deleted items or the latest inventory list (renewal of incoming and outgoing).
  • the camera of the terminal device 80 such as a smart phone can read a two-dimensional barcode such as a QR code/JAN code and add it to the inventory list.
  • a two-dimensional barcode such as a QR code/JAN code is read from the camera of the terminal device 80 and added to the inventory list.
  • periodic inventory confirmation by RFID RW antenna is not required. Since it cannot be detected, it will not be mistakenly detected as leaving the warehouse.
  • Updating of the inventory list other than at the time of warehousing can be performed at the timing of detecting warehousing/leaving (disposal) of the RFID tag 52 at the time of warehousing or operation of the list, and there is no need to update the inventory list frequently.
  • a camera does not have a serial number (S/N) (the product can be identified, but it does not have all the RFID codes and does not conform to the EPC code), the number of copies read Assuming that the same number of items is stocked, it is possible to manage the number of items in the same manner as with RFID.
  • S/N serial number
  • the quantity may be input on the inventory list. The number may be entered as a numerical value, or the stock list number may be corrected with symbols such as "+", "-", " ⁇ ", and ">".
  • the camera does not have a serial number (S/N) (the same as the above, it does not conform to the EPC code), for items that are already displayed on the inventory list, enter the number of items on the inventory list Alternatively, the stock list quantity may be corrected with symbols such as "+”, “-”, “ ⁇ ”, and ">".
  • deletion from the inventory list may be instructed by voice. For example, you can check the inventory list on your smartphone.
  • S/N serial number
  • the number of items can be similarly managed by deleting the number of items that have been shipped from the inventory list.
  • the number of items shipped from the inventory list may be entered as a numerical value, or the inventory list may be corrected by increasing or decreasing with symbols such as "+", "-", " ⁇ ", and ">".
  • the storage 4 may be provided with a display device or the like to have the same functions as the terminal device 80.
  • a warehousing antenna 6A provided so as to be able to communicate with a wireless tag (for example, an RFID tag 52) attached to an article stored in the storage 4, and a wireless tag when leaving the storage.
  • An article information acquisition unit for example, a tag reader/writer device 6, 7
  • an inventory management device 1 that manages the articles in the storage 4 based on the acquired article information.
  • a radio wave is output from 6A, and when the door is closed, a radio wave is output from the exit antenna 7A. As a result, inventory management in the storage can be appropriately performed.
  • the inventory management device 1 When the door is open, the inventory management device 1 outputs radio waves from the receiving antenna 6A and stops outputting radio waves from the leaving antenna 7A. It is preferable to output radio waves from the antenna 7A and stop outputting radio waves from the warehousing antenna 6A. As a result, it is possible to prevent erroneous detection at the time of leaving the garage.
  • the radio wave intensity of the warehousing antenna 6A when communicating with the wireless tag is greater than the radio wave intensity of the leaving antenna 7A when communicating with the wireless tag. This prevents erroneous determination of delivery at the time of delivery.
  • the number of warehousing antennas 6A is preferably equal to or greater than the number of warehousing antennas 7A. Since a plurality of antennas are provided for warehousing, even if the RFID tag cannot be recognized by one antenna at the time of warehousing, if the RFID tag can be recognized by other antennas, the warehousing can be performed and the warehousing can be detected with high accuracy. When the door is closed, at least one of the antennas 7A is placed at a position where the user can easily touch the tag-attached goods to the exit antenna 7A, thereby preventing erroneous exit determination. do.
  • the storage 4 has a plurality of storage rooms, each storage room of the storage 4 is provided with an incoming antenna 6A, and the outer surface of the storage 4 is provided with an outgoing antenna 7A.
  • a two-dimensional code is attached to the article, and when the inventory management device 1 receives the information of the two-dimensional code, the inventory list held by the inventory management device 1 is based on the information of the two-dimensional code. Items can be added.
  • the inventory management device 1 can communicate with the terminal device 80, and the inventory management device 1 can delete the information of the item from the inventory list based on the deletion request of the item from the terminal device 80.
  • the inventory management device 1 can create an order list from the delivery list of delivered items.
  • the exit antenna 7A is a short-range antenna with a communication distance of 5 cm or less. As a result, erroneous determination of delivery at the time of delivery is prevented.
  • the inventory management device 1 can continue to output radio waves from the warehousing antenna 6A for a set period of time.
  • the set time is the set time set in the column 66b of FIG. Also, the set time corresponds to the set time of the warehousing antenna 6A in step S206 of FIG.
  • the inventory management system 100 further has an ordering antenna that is arranged outside the storage 4 and reads the radio tag of the ordered article (see FIGS. 10, 11 and 12).
  • a wireless tag for example, an RFID tag 52
  • an inventory management device 1 for managing the items in the storage 4 based on the acquired product information.
  • a radio wave is output from the antenna 6A, and when the door is closed, a radio wave is output from the exit antenna 7A. As a result, inventory management in the storage can be appropriately performed.
  • the present invention is not limited to the above-described embodiments, and includes various modifications.
  • the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the described configurations.
  • it is possible to replace part of the configuration of one embodiment with the configuration of another embodiment and it is also possible to add the configuration of another embodiment to the configuration of one embodiment.
  • each of the configurations, functions, processing units, processing means, etc. described above may be realized by hardware, for example, by designing a part or all of them using an integrated circuit.
  • each of the above configurations, functions, etc. may be realized by software by a processor interpreting and executing a program for realizing each function.
  • Information such as programs, tables, and files that implement each function can be stored in recording devices such as memories, hard disks, SSDs (Solid State Drives), or recording media such as IC cards, SD cards, and DVDs.
  • the control lines and information lines indicate those considered necessary for explanation, and not all control lines and information lines are necessarily indicated on the product. In fact, it may be considered that almost all configurations are interconnected.
  • Various information of the inventory management device 1 may exist on the cloud.

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Abstract

An inventory control system (100) comprises: an internal loading antenna (6A) provided so as to be capable of communicating with a wireless tag attached to an article stored in a storage (4); an external unloading antenna (7A) provided so as to be capable of communicating with the wireless tag during unloading; an article information acquisition unit (tag reader/writer device (6, 7)) for communicating with a wireless tag through the loading antenna (6A) or the unloading antenna (7A) to acquire article information; and an inventory control device (1) for managing an article in the storage (4) on the basis of the acquired article information. The inventory control device (1) outputs radio waves from the loading antenna (6A) when a door of the storage (4) is open, and outputs radio waves from the unloading antenna (7A) when the door is closed.

Description

在庫管理システム及び保管庫Inventory management system and storage
　本発明は、在庫管理システム及び保管庫に関する。 The present invention relates to an inventory management system and storage.
　近時、保管庫の内部を視認することなく保管庫内に保管している物品を知る技術が普及している。特許文献１は、冷蔵庫内に収容する食品に食品情報を記録したＲＦＩＤ（Radio Frequency Identifier）タグを付して貯蔵する冷蔵庫において、冷蔵庫の庫内又は冷蔵庫の庫内と冷蔵庫の庫外の双方にＲＦＩＤタグリーダを有することと、当該ＲＦＩＤタグリーダにより読み取った当該食品情報を蓄積したデータベースを備えることが記載されている。 Recently, technology to know the items stored in the vault without seeing the inside of the vault has become widespread. Patent Document 1 discloses a refrigerator in which food stored in the refrigerator is attached with an RFID (Radio Frequency Identifier) tag that records food information, and is stored in the refrigerator or both inside the refrigerator and outside the refrigerator. It is described to have an RFID tag reader and to have a database storing the food information read by the RFID tag reader.
　特許文献２の保管庫においては、保管庫の扉が開けられたことを契機として、保管庫内に設置されたタグリーダライタ装置が、保管庫内部の物品に添付された情報記録担体に対して、データの読み出し及び書き込みを行うことが記載されている。 In the storage of Patent Literature 2, when the door of the storage is opened, the tag reader/writer device installed in the storage stores information recording carriers attached to the articles in the storage. Reading and writing data is described.
特開２００１－３１９０４３号公報JP-A-2001-319043 特許第３９６００９３号公報Japanese Patent No. 3960093
　特許文献１の冷蔵庫において、入庫時には、操作者は、ＲＦＩＤタグの付いたパッケージを冷蔵庫の庫内に単に入れるか又はＲＦＩＤタグリーダライタが冷蔵庫前面扉にある場合は、冷蔵庫前面にかざすだけでよいとしている。庫内のＲＦＩＤタグリーダは、ＲＦＩＤタグの共振周波数である電波をＲＦＩＤタグに定時的に繰り返し送信して該当するＲＦＩＤタグの付いた食品からの応答波を読み取りする。これにより応答が無い場合は、当該食品は消費されたものとしてデータベースに記録し、出庫判定している。 In the refrigerator of Patent Document 1, when entering the refrigerator, the operator simply puts the package with the RFID tag inside the refrigerator, or if the RFID tag reader/writer is on the front door of the refrigerator, just hold it over the front of the refrigerator. there is The RFID tag reader in the refrigerator periodically and repeatedly transmits radio waves, which are the resonance frequency of the RFID tag, to the RFID tag and reads the response wave from the food with the corresponding RFID tag. If there is no response, the food is recorded in the database as having been consumed, and is determined to be delivered.
　特許文献２の保管庫は、タグリーダライタ装置を保管庫内に備える。食料品に取り付けられているＲＦＩＤからのレスポンスが検出されなくなると、該当食料品が出庫されたと制御部が判定している。 The storage of Patent Document 2 includes a tag reader/writer device inside the storage. When the response from the RFID attached to the food is no longer detected, the control unit determines that the food has been taken out.
　一般に、保管庫内で電波を情報記録担体（タグ）に照射する場合、水分を含む食品又は金属製の障害物が電波を偶然遮ることがある。また、庫内のヌル点にタグが配置されて電波が遮蔽された場合は、当該タグが読み取れず、特許文献１及び特許文献２の方式であると「出庫」と誤判定されることが多かった。なお、ヌル点とは、それぞれのアンテナから放射された電波が干渉しあって、お互いに打ち消しあってしまう点のことである。 In general, when radio waves are irradiated to information recording carriers (tags) in storage, food containing moisture or metal obstacles may accidentally block the radio waves. In addition, when a tag is placed at a null point in the warehouse and radio waves are blocked, the tag cannot be read, and in many cases, it is erroneously judged as "out of the warehouse" in the methods of Patent Documents 1 and 2. rice field. A null point is a point at which radio waves radiated from respective antennas interfere with each other and cancel each other out.
　したがって、タグリーダライタ装置が情報記録担体を読み取れない場合、その物品は、保管庫内に存在しないと判断されるのが課題であった。 Therefore, if the tag reader/writer device cannot read the information recording carrier, the problem is that the article is judged not to exist in the storage.
　本発明は、前記した従来の課題を解決するものであり、保管庫内の在庫管理を適切に行うことができる在庫管理システム及び保管庫を提供することを目的とする。 The present invention solves the conventional problems described above, and aims to provide an inventory management system and storage that can appropriately manage inventory in the storage.
　前記目的を達成するため、本発明の在庫管理システムは、保管庫内に収容する物品に付された無線タグと通信ができるように設けられた庫内の入庫用アンテナと、出庫のときに前記無線タグと通信ができるように設けられた庫外の出庫用アンテナと、前記入庫用アンテナ又は前記出庫用アンテナを介して前記無線タグと通信を行って物品情報を取得する物品情報取得部（例えば、タグリーダライタ装置）と、前記取得した物品情報に基づき、前記保管庫の物品を管理する在庫管理装置とを備え、前記在庫管理装置は、前記保管庫の扉が開かれている場合、前記入庫用アンテナから電波を出力し、前記扉が閉じられている場合、前記出庫用アンテナから電波を出力することを特徴とする。本発明のその他の態様については、後記する実施形態において説明する。 In order to achieve the above object, the inventory management system of the present invention comprises an in-warehouse entry antenna provided so as to be able to communicate with a wireless tag attached to an article stored in the storage, and An article information acquisition unit (for example, , tag reader/writer device) and an inventory management device for managing the articles in the storage based on the acquired article information, the inventory management device, when the door of the storage is open, and outputting radio waves from the antenna for exiting the garage, and outputting radio waves from the antenna for exiting the garage when the door is closed. Other aspects of the present invention are described in embodiments below.
　本発明によれば、保管庫内の在庫管理を適切に行うことができる。 According to the present invention, inventory management within the storage can be performed appropriately.
本実施形態に係る在庫管理システムの構成を説明する図である。It is a figure explaining the structure of the inventory management system which concerns on this embodiment. アンテナの位置と扉が閉じているときの電波の状態を説明する図である。It is a figure explaining the position of an antenna, and the state of an electric wave when a door is closed. アンテナの位置と扉が開いているときの電波の状態を説明する図である。It is a figure explaining the position of an antenna, and the state of an electric wave when a door is open. アンテナの位置と引き出しが開いているときの電波の状態を説明する図である。It is a figure explaining the position of an antenna, and the state of an electric wave when a drawer is open. 開閉情報の一例である。It is an example of opening/closing information. 読取情報の一例である。It is an example of read information. 在庫情報の一例である。It is an example of inventory information. アンテナ・センサ設定画面の一例である。It is an example of an antenna sensor setting screen. 処理手順の一例を示すフローチャートである。4 is a flow chart showing an example of a processing procedure; 扉に複数のアンテナを設けた保管庫を説明する図である。It is a figure explaining the storage which provided the door with several antennas. 在庫管理装置の他の構成等を説明する図である。It is a figure explaining other composition etc. of an inventory control device. 扉に複数のアンテナを設けた他の保管庫を説明する図である。FIG. 10 is a diagram illustrating another storage with a plurality of antennas provided on the door; 引き出し式のトレイの形状を説明する図であり、（ａ）はトレイ手前側の一部を切り欠いた形状、（ｂ）はトレイ手前側に凹部を設けた形状である。It is a figure explaining the shape of a drawer-type tray, (a) is the shape which notched a part of tray front side, (b) is the shape which provided the recessed part in the tray front side. 入庫用アンテナと出庫用アンテナの電波の出力タイミングを説明する図である。It is a figure explaining the output timing of the electric wave of the antenna for entering a warehouse, and the antenna for leaving a warehouse.
　以降、本発明を実施するための形態（“本実施形態”という）を、図等を参照しながら詳細に説明する。本実施形態は、キッチンにおいて、冷蔵庫等の保管庫に食品を保管する例である。しかしながら、本発明は、生産現場等、キッチン以外の空間において、食品以外の物品を保管する例にも一般的に適用可能である。 Hereinafter, a form for carrying out the present invention (referred to as "this embodiment") will be described in detail with reference to the drawings. This embodiment is an example of storing food in a storage such as a refrigerator in a kitchen. However, the present invention is generally applicable to examples of storing articles other than food in spaces other than kitchens, such as production sites.
（在庫管理システム）
　図１は、本実施形態に係る在庫管理システム１００の構成を説明する図である。在庫管理システム１００は、在庫管理装置１、ＲＦＩＤ（Radio Frequency Identifier）タグの情報を読み書きするタグリーダライタ装置６及びタグリーダライタ装置７とで構成されている。タグリーダライタ装置６は入庫用アンテナ６Ａを有する。同様に、タグリーダライタ装置７は出庫用アンテナ７Ａを有する。 (Inventory management system)
FIG. 1 is a diagram illustrating the configuration of an inventory management system 100 according to this embodiment. The inventory management system 100 includes an inventory management device 1, a tag reader/writer device 6 and a tag reader/writer device 7 for reading and writing information on RFID (Radio Frequency Identifier) tags. The tag reader/writer device 6 has a warehousing antenna 6A. Similarly, the tag reader/writer device 7 has an exit antenna 7A.
　在庫管理装置１は、一般的なコンピュータ（サーバ、ＰＣ等）である。在庫管理装置１は、中央制御装置１１、マウス、キーボード、タッチパネル等の入力装置１２、ディスプレイ等の出力装置１３、主記憶装置１４、補助記憶装置１５及び通信装置１６を備える。これらは、バスで相互に接続されている。 The inventory management device 1 is a general computer (server, PC, etc.). The inventory management device 1 includes a central control device 11 , an input device 12 such as a mouse, keyboard, or touch panel, an output device 13 such as a display, a main storage device 14 , an auxiliary storage device 15 and a communication device 16 . These are interconnected by a bus.
　補助記憶装置１５は、開閉情報３１、読取情報３２及び在庫情報３３（詳細後記）を格納している。主記憶装置１４における入出力処理部２１及び在庫管理部２２は、プログラムである。中央制御装置１１は、これらのプログラムを補助記憶装置１５から読み出して主記憶装置１４にロードすることによって、それぞれのプログラムの機能（詳細後記）を実現する。補助記憶装置１５が在庫管理装置１から独立した構成であってもよい。 The auxiliary storage device 15 stores open/close information 31, read information 32, and inventory information 33 (details will be described later). The input/output processing unit 21 and the inventory management unit 22 in the main storage device 14 are programs. The central control unit 11 reads out these programs from the auxiliary storage device 15 and loads them into the main storage device 14, thereby realizing the functions of each program (details will be described later). The auxiliary storage device 15 may be configured independently from the inventory management device 1 .
　キッチン３に１又は複数の保管庫４が存在する。ここでの保管庫４としては、冷蔵庫が想定されているが、保管庫４は、冷却機能を有さない食品庫又は食品棚であってもよい。保管庫４は、前記したタグリーダライタ装置６及びタグリーダライタ装置７を有する。入庫用アンテナ６Ａは、保管庫４の内部空間の天井等に設置されている。出庫用アンテナ７Ａは、保管庫の外側、例えば、引き出しの外部面等に設置されている。 There are one or more storage cabinets 4 in the kitchen 3. A refrigerator is assumed here as the storage 4, but the storage 4 may be a pantry or food shelf that does not have a cooling function. The storage 4 has the tag reader/writer device 6 and the tag reader/writer device 7 described above. The receiving antenna 6A is installed on the ceiling of the internal space of the storage 4 or the like. The exit antenna 7A is installed outside the storage, for example, on the outer surface of a drawer.
　本実施形態においては、ＲＦＩＤタグ５２が個々の食品５１に添付されており、ＲＦＩＤタグ内の電子チップは、食品に関する様々なデータ（メーカ名、アイテム名等の情報を示すコード）を記憶している。タグリーダライタ装置６は、入庫用アンテナ６Ａを介して、ＲＦＩＤタグ５２に対して電波を照射し、反射した電波を受信することによって、当該データを読み取ることができる。タグリーダライタ装置７は、入庫用アンテナ６Ａを介して、ＲＦＩＤタグ５２に対して電波を照射し、反射した電波を受信することによって、当該データを読み取ることができる。 In this embodiment, the RFID tag 52 is attached to each food item 51, and the electronic chip in the RFID tag stores various data (code indicating information such as manufacturer name and item name) regarding the food item. there is The tag reader/writer device 6 can read the data by radiating radio waves to the RFID tag 52 via the warehousing antenna 6A and receiving the reflected radio waves. The tag reader/writer device 7 can read the data by irradiating radio waves to the RFID tag 52 via the warehousing antenna 6A and receiving the reflected radio waves.
　在庫管理装置１は、保管庫の扉又は蓋（図示していない）が開かれている場合、入庫用アンテナ６Ａから電波を出力し、扉又は蓋が閉じられている場合、出庫用アンテナ７Ａから電波を出力する。アンテナが出力している状態でのアンテナの電波強度は、入庫用アンテナ６Ａ＞出庫用アンテナ７Ａである。入庫時は庫内に設けられた入庫用アンテナ６Ａを介して自動認識、出庫の際には扉又は蓋を閉じた際に、保管庫の外面に、かつ、ＲＦＩＤタグ５２をアンテナに触れられる位置に配置された出庫用アンテナ７Ａを介して自動認識する。出庫用アンテナ７Ａは、タグをタッチ(０～５ｃｍ程度の距離)しないとタグを検知できないように、電波強度を小さくする。これにより、出庫時の出庫誤判定を防止する。 The inventory management device 1 outputs radio waves from the warehouse entry antenna 6A when the door or lid (not shown) of the warehouse is open, and outputs radio waves from the warehouse exit antenna 7A when the door or lid is closed. Output radio waves. The radio wave intensity of the antenna in the state where the antenna is outputting is: the antenna for entering the warehouse 6A>the antenna for leaving the warehouse 7A. When entering the warehouse, it is automatically recognized via the entering antenna 6A provided in the warehouse, and when leaving the warehouse, when the door or lid is closed, the RFID tag 52 is located on the outer surface of the storage and at the position where the antenna can be touched. automatic recognition via the exit antenna 7A arranged in the . The exit antenna 7A reduces the radio wave intensity so that the tag cannot be detected unless the tag is touched (at a distance of about 0 to 5 cm). This prevents erroneous determination of delivery at the time of delivery.
　在庫管理装置１は、ネットワーク２を介して、タグリーダライタ装置６及びタグリーダライタ装置７と通信可能であり、それらの電波照射タイミング及び照射電力を、アンテナ・センサ設定画面６１（図８参照）に基づいて制御することもできる。さらに、在庫管理装置１は、ネットワーク２を介して、扉開閉センサ及び引き出し開閉センサ（図示せず）とも通信可能である。キッチン３内の任意の位置に、キッチン３内における人の存在を検知する人感センサ（図示せず）及びキッチン３内の照度を検知する照度センサ（図示せず）が設置されている。在庫管理装置１は、ネットワーク２を介して、これらのセンサとも通信可能である。なお、在庫管理装置１は、保管庫４と一体になっていてもよい。 The inventory management device 1 can communicate with the tag reader/writer device 6 and the tag reader/writer device 7 via the network 2, and sets the radio wave irradiation timing and irradiation power thereof based on the antenna/sensor setting screen 61 (see FIG. 8). can also be controlled by Furthermore, the inventory management device 1 can also communicate with door opening/closing sensors and drawer opening/closing sensors (not shown) via the network 2 . A human sensor (not shown) that detects the presence of a person in the kitchen 3 and an illuminance sensor (not shown) that detects the illuminance in the kitchen 3 are installed at arbitrary positions in the kitchen 3 . Inventory management device 1 can also communicate with these sensors via network 2 . Note that the inventory management device 1 may be integrated with the stocker 4 .
　在庫管理装置１は、スマートフォン等の端末装置８０と通信可能であり、在庫管理装置１は、端末装置８０から物品の閲覧要求をもとに、端末装置８０へ保管庫４の在庫情報３３を送信する。在庫管理装置１は、端末装置８０からの物品の削除要求をもとに、在庫リストから物品の情報を削除することができる。 The inventory management device 1 can communicate with a terminal device 80 such as a smart phone, and the inventory management device 1 transmits inventory information 33 of the storage box 4 to the terminal device 80 based on an article viewing request from the terminal device 80. do. The inventory management device 1 can delete the information of the item from the inventory list based on the item deletion request from the terminal device 80 .
　食品５１（物品）に、２次元コードが付されている場合、在庫管理装置１は、端末装置８０から読み込んだ２次元コードの情報を受信した場合、在庫管理装置１が保持する在庫情報３３に基づく在庫リストに、２次元コードの情報に基づく物品を追加することができる。 When the two-dimensional code is attached to the food 51 (goods), the inventory management device 1, when receiving the information of the two-dimensional code read from the terminal device 80, stores the information in the inventory information 33 held by the inventory management device 1. It is possible to add an article based on the information of the two-dimensional code to the inventory list based on it.
（アンテナの位置）
　図２は、アンテナの位置と扉が閉じているときの電波の状態を説明する図である。図２の保管庫４は、一般的な冷蔵庫である。保管庫４は、上下４段の貯蔵室を有する。図２では、貯蔵室の扉４１及び引き出し４２は、閉じている。最上段の貯蔵室内側の天井に入庫用アンテナ６Ａが設置されている。入庫用アンテナ６Ａは、自身の電波照射領域８内に存在するＲＦＩＤタグ５２を読み取ることができる。扉４１は、両開きであり、保管庫４に向かって左側の扉の外面に出庫用アンテナ７Ａが設置されている（外面と出庫用アンテナ７Ａとが面一（フラット）となるような態様での設置）。出庫用アンテナ７Ａは、自身の電波照射領域９内に存在するＲＦＩＤタグ５２を読み取ることができる。出庫用アンテナ７Ａは、タグをタッチ(０～５cm程度の距離に近接)しないとタグを検知できないように、電波強度を小さくしている（タッチはユーザが行う）。在庫管理装置１は、扉４１が閉じられている場合、出庫用アンテナ７Ａから電波を出力するとともに、入庫用アンテナ６Ａから電波の出力を停止している。なお、０～５ｃｍは一例である。また、図２においては入庫用アンテナ６Ａと出庫用アンテナ７Ａが各々電波を出力する時間帯は扉閉鎖を境界として分割されているが、これは一例であり「（ｃ）アンテナの出力タイミング」にて動作条件の詳細を述べる。 (Antenna position)
FIG. 2 is a diagram for explaining the position of the antenna and the state of radio waves when the door is closed. The storehouse 4 in FIG. 2 is a general refrigerator. The stocker 4 has four upper and lower storage chambers. In FIG. 2, the storeroom door 41 and drawer 42 are closed. An antenna 6A for entering is installed on the ceiling inside the uppermost storeroom. The warehousing antenna 6A can read the RFID tag 52 existing within its own radio wave irradiation area 8 . The door 41 is double-opening, and the exit antenna 7A is installed on the outer surface of the door on the left side of the storage cabinet 4 (the outer surface and the exit antenna 7A are arranged to be flush with each other). Installation). The exit antenna 7A can read the RFID tag 52 existing within the radio wave irradiation area 9 of itself. The exit antenna 7A has a low radio wave intensity so that the tag cannot be detected unless the tag is touched (at a distance of about 0 to 5 cm) (the touch is performed by the user). When the door 41 is closed, the inventory management device 1 outputs radio waves from the leaving antenna 7A and stops outputting radio waves from the entering antenna 6A. Note that 0 to 5 cm is an example. In FIG. 2, the time period in which the antenna for entering the warehouse 6A and the antenna for exiting the warehouse 7A each output radio waves is divided with the door closed as a boundary, but this is an example and is described in "(c) Antenna Output Timing". Details of the operating conditions are described below.
　図２において、本実施形態では入庫用アンテナ６Ａは、最上段の貯蔵室の天井面に下向き（下に電波を照射するように）設置されている。しかしながら、入庫用アンテナ６Ａは、最上段の貯蔵室の床面上の位置であって、扉４１が開いているときに物品保持手段４３をその真下から見上げる位置（図３符号４５）に、上向きに（上に電波を照射するように）設置されていてもよい。 In FIG. 2, in this embodiment, the warehousing antenna 6A is installed facing downward (to emit radio waves downward) on the ceiling surface of the uppermost storage room. However, the receiving antenna 6A is located on the floor of the uppermost storage room, and when the door 41 is open, the article holding means 43 can be seen from directly below (reference numeral 45 in FIG. 3). (so as to radiate radio waves upward).
　図３は、アンテナの位置と扉４１が開いているときの電波の状態を説明する図である。図３では、扉４１は開いており、図２と比較すると、在庫管理装置１は、扉４１が開かれている場合、入庫用アンテナ６Ａから電波を出力するとともに、出庫用アンテナ７Ａから電波の出力を停止している。なお、図３において、保管庫４に向かって観音開きの扉４１の右側の扉は略９０度開いており、左側の扉は略１８０度開いている。 FIG. 3 is a diagram explaining the position of the antenna and the state of radio waves when the door 41 is open. In FIG. 3, the door 41 is open. Compared with FIG. 2, when the door 41 is open, the inventory management device 1 outputs radio waves from the receiving antenna 6A and outputs radio waves from the leaving antenna 7A. Output is stopped. In addition, in FIG. 3, the right door of the double door 41 facing the storage 4 is opened approximately 90 degrees, and the left door is opened approximately 180 degrees.
　図４は、アンテナの位置と引き出し４４が開いているときの電波の状態を説明する図である。図４では、扉４１及び引き出し４２は、閉じており、上から３段目の貯蔵室の引き出し４４は開いている。上から３段目の貯蔵室内側の天井に入庫用アンテナ６Ａが設置されている。入庫用アンテナ６Ａは、自身の電波照射領域８内に存在するＲＦＩＤタグ５２を読み取ることができる。在庫管理装置１は、引き出し４４が開かれている場合、入庫用アンテナ６Ａから電波を出力するとともに、出庫用アンテナ７Ａから電波の出力を停止している。 FIG. 4 is a diagram explaining the position of the antenna and the state of radio waves when the drawer 44 is open. In FIG. 4, the door 41 and the drawer 42 are closed, and the drawer 44 of the third storeroom from the top is open. An antenna 6A for entering the warehouse is installed on the ceiling inside the storage room on the third stage from the top. The warehousing antenna 6A can read the RFID tag 52 existing within its own radio wave irradiation area 8 . When the drawer 44 is open, the inventory management device 1 outputs radio waves from the warehousing antenna 6A and stops outputting radio waves from the warehousing antenna 7A.
　図２～図４に示したように、入庫用アンテナ６Ａの個数は、出庫用アンテナ７Ａの個数以上である。保管庫４は、複数の貯蔵室を有し、保管庫４の各貯蔵室内に、入庫用アンテナ６Ａが設けられ、保管庫４の外面に、出庫用アンテナ７Ａが設けられている。図２～図４においては、各貯蔵室内の入庫用アンテナ６Ａは、切替器（図示せず）を介してタグリーダライタ装置６と接続されており、出庫用アンテナ7Ａは、タグリーダライタ装置７に接続されている。 As shown in Figs. 2 to 4, the number of warehousing antennas 6A is greater than or equal to the number of warehousing antennas 7A. The storage 4 has a plurality of storage compartments, each storage compartment of the storage 4 is provided with an incoming antenna 6A, and the outer surface of the storage 4 is provided with an outgoing antenna 7A. 2 to 4, the entering antenna 6A in each storage room is connected to the tag reader/writer device 6 via a switch (not shown), and the leaving antenna 7A is connected to the tag reader/writer device 7. It is
　アンテナの位置、配置及び個数等についてさらに説明する。
（ａ）入庫用アンテナ６Ａの配置
（ａ１）貯蔵室が扉（ドア）式の場合：（ｉ）冷蔵室最下面（扉を閉じた際のドアポケットの下）、（ii）天井灯付近、（iii）庫内両サイドの壁、のいずれか又はいずれかを組み合わせた配置である。
　これらの位置に入庫用アンテナを設けているので、例えば扉の庫内側に収容用のポケットを設けて該ポケットに食品を入庫した場合でも、扉を閉じる際に食品に取り付けたＲＦＩＤタグ５２が入庫用アンテナ６Ａに移動して近づいてくるので、入庫用アンテナ６Ａの電波の庫内のヌル点とは異なる位置や、金属物の近傍にＲＦＩＤタグ５２が配置されていても、入庫用アンテナ６ＡとＲＦＩＤタグ５２の距離や角度等が異なる位置に移動するので、入庫用アンテナ６ＡでＲＦＩＤタグ５２を認識可能となる。 The position, arrangement, number, etc. of the antennas will be further explained.
(a) Arrangement of warehousing antenna 6A (a1) When the storage room is a door type: (i) bottom surface of the refrigerator compartment (below the door pocket when the door is closed), (ii) near the ceiling light, (iii) walls on both sides of the chamber, or a combination of the two.
Since the receiving antennas are provided at these positions, for example, even if a storage pocket is provided inside the door and the food is stored in the pocket, the RFID tag 52 attached to the food is stored when the door is closed. Therefore, even if the RFID tag 52 is placed at a position different from the null point of the electric wave of the receiving antenna 6A in the warehouse or near a metal object, the receiving antenna 6A and the RFID tag 52 may move closer to each other. Since the RFID tag 52 moves to a position with a different distance, angle, etc., the RFID tag 52 can be recognized by the warehousing antenna 6A.
（ａ２）貯蔵室が引出式（引き出し式）の場合：収容室（野菜室、冷凍室等）手前側天井に配置する。引出の内部に可動式（引き出し可能な）トレイを設けている場合、トレイ手前側の一部を切り欠いた形状、もしくは凹部を設けた形状としている。 (a2) When the storage room is of a drawer type (drawer type): The storage room (vegetable room, freezer room, etc.) is arranged on the ceiling on the front side. When a movable (pullable) tray is provided inside the drawer, the shape is such that a portion of the front side of the tray is notched or a recess is provided.
　図１３は、引出式のトレイの形状を説明する図であり、（ａ）はトレイ手前側の一部を切り欠いた形状、（ｂ）はトレイ手前側に凹部を設けた形状である。なお、図１３は、上面視した（平面視した）形状である。 13A and 13B are diagrams for explaining the shape of the drawer-type tray, where (a) is a shape in which a part of the front side of the tray is notched, and (b) is a shape in which a concave portion is provided on the front side of the tray. Note that FIG. 13 shows a shape viewed from above (planar view).
　引出式の貯蔵室の場合、内部トレイのアンテナ下方には空間があるため、トレイ内に食品を配置してもアンテナ下方には空間がある。ＲＦＩＤタグ５２が付いた食品／食材を庫内に入れる際に、ＲＦＩＤタグ５２が移動しながら庫内に配置される。また、トレイに配置されてからも引出しの閉じ込めの際にトレイの引き込みにより、ＲＦＩＤタグ５２が移動しながら入庫される。このため、入庫用アンテナ６Ａの電波の庫内のヌル点又は、ＲＦＩＤタグ５２が金属物の影に隠れているのも移動で相対位置が変わり、入庫検知されない誤検知を防止することができる。 In the case of a drawer-type storage room, there is a space below the antenna of the internal tray, so even if food is placed in the tray, there is a space below the antenna. When the food/ingredient with the RFID tag 52 is placed in the refrigerator, the RFID tag 52 is moved and placed in the refrigerator. Further, even after being placed on the tray, the RFID tag 52 is moved and stored as the tray is pulled in when the drawer is closed. For this reason, it is possible to prevent erroneous detection in which the entry is not detected due to a change in the relative position due to movement of the radio wave null point of the entry antenna 6A or the RFID tag 52 hidden behind a metal object.
　冷蔵庫の各貯蔵室内に、入庫用アンテナ６Ａを設けた場合、各貯蔵室単位で在庫管理ができる。 If an antenna 6A for entering the refrigerator is installed in each storage room of the refrigerator, inventory can be managed for each storage room.
（ｂ）出庫用アンテナ７Ａ（手動タッチ用）の位置
（ｂ１）出庫用のアンテナは、各貯蔵室の出庫を一つのアンテナで共有してよい。アンテナやタグリーダライタ装置の数を抑制できる。
（ｂ２）冷蔵室ドア、回転式の扉の表側に出庫用アンテナ７Ａを設けるとよい。回転式の扉の回転軸等に配線（信号線含む）を通す等できるので、設置しやすい。 (b) Position of the retrieval antenna 7A (for manual touch) (b1) As for the retrieval antenna, one antenna may be shared for retrieval of each storage room. The number of antennas and tag reader/writer devices can be reduced.
(b2) It is preferable to provide an exit antenna 7A on the front side of the refrigerating compartment door and the rotary door. It is easy to install because wiring (including signal lines) can be passed through the rotating shaft of the rotating door.
（ｃ）出庫用アンテナ７Ａが認識したことの報知
（ｃ１）ＲＦＩＤタグ５２を読み込んだ際に、音やＬＥＤ点灯／点滅で知らせるのがよい。これにより、ユーザは確実に、読み込んだかを知ることができる。
（ｃ２）端末装置８０のスマートフォンに連絡：削除されたものを通知、あるいは最新の在庫リスト（入庫、出庫を更新）を通知する。
（ｃ３）出庫用のタッチ用アンテナの給電開始や給電終了に合わせて、物品の認識と異なるＬＥＤの点灯／点滅、報知音を鳴動させてもよい。ユーザが認識可能か、エラーで認識できないのかが判断可能となる。 (c) Notification of recognition by the exit antenna 7A (c1) When the RFID tag 52 is read, it is preferable to notify by sound or LED lighting/blinking. This allows the user to know with certainty whether the file has been read.
(c2) Contact the smart phone of the terminal device 80: Notify the deleted items or the latest stock list (update receipt and shipment).
(c3) In accordance with the start or end of power supply to the touch antenna for exiting the warehouse, an LED may be turned on/blink or a notification sound different from the recognition of the article may be generated. It becomes possible to determine whether the user can recognize or cannot recognize due to an error.
（ｄ）入庫用アンテナ６Ａと出庫用アンテナ７Ａの個数
（ｄ１）入庫時は庫内に設けられたアンテナにより遠方までＲＦＩＤタグ５２を読んで、自動認識可能としている。庫内容積が大きい際、つまり入口の面積が大きい際や、貯蔵室の扉が観音式、あるいは扉が縦に長い場合、貯蔵室入口付近に、複数の入庫用アンテナを設けてもよい。
（ｄ２）出庫用アンテナ７Ａは、扉を閉じた際に触れられる位置にアンテナ（認識位置）を１つ配置し、出庫用アンテナ７ＡにＲＦＩＤタグをタッチするとよい。
（ｄ３）入庫用に複数のアンテナを設けているので、入庫の際１つのアンテナでＲＦＩＤタグを認識できなくても、他のアンテナでＲＦＩＤタグを認識できれば入庫とすればよく、入庫検知を精度よくできる。また、ユーザが複数個のＲＦＩＤタグ付き食品を入庫する際に、貯蔵室庫内に配置された複数の棚にランダムに収納したとしても、複数個の入庫用アンテナを設けているので、入庫の際のＲＦＩＤタグの未検知を防ぐことができる。 (d) Number of warehousing antennas 6A and warehousing antennas 7A (d1) At the time of warehousing, the RFID tag 52 can be read from a long distance by an antenna provided in the warehousing and can be automatically recognized. When the internal volume is large, that is, when the area of the entrance is large, or when the door of the storage room is double-sided or vertically long, a plurality of antennas for entering may be provided near the entrance of the storage room.
(d2) As for the exit antenna 7A, one antenna (recognition position) may be placed at a position that can be touched when the door is closed, and an RFID tag may be touched to the exit antenna 7A.
(d3) Since multiple antennas are provided for warehousing, even if one antenna cannot recognize the RFID tag at the time of warehousing, if the other antenna can recognize the RFID tag, it can be regarded as warehousing. I can do it well. In addition, when a user stores a plurality of items of food with RFID tags, even if the user randomly stores them on a plurality of shelves arranged in the storage room, since a plurality of receiving antennas are provided, it is possible to prevent the items from being stored. It is possible to prevent the RFID tag from being undetected.
（開閉情報）
　図５は、開閉情報３１の一例である。開閉情報３１においては、日時欄１０１に記憶されている日時に関連付けて、扉欄１０２には扉が、開閉状態欄１０３には開閉状態が、アンテナ照射電力欄１０４にはアンテナ照射電力が記憶されている。 (open/close information)
FIG. 5 is an example of the opening/closing information 31. As shown in FIG. In the open/close information 31, the door is stored in the door column 102, the open/close state is stored in the open/close state column 103, and the antenna irradiation power is stored in the antenna irradiation power column 104, in association with the date and time stored in the date and time column 101. ing.
　日時欄１０１の時刻は、入庫用アンテナ６Ａ及び出庫用アンテナ７Ａが電波を照射した時刻である。ここでは単純化のため、電波が２秒間隔で照射される例を示したが、実際の照射間隔は、それよりも遥に短い“数ミリ秒”である。扉欄１０２の扉は、保管庫４の扉を一意に特定する番号である。なお、ここでの扉は、引き出しも含む概念である。開閉状態欄１０３の開閉状態は、扉が開いていることを示す“開”、又は、扉が閉じていることを示す“閉”のいずれかである。 The time in the date and time column 101 is the time when the warehousing antenna 6A and the warehousing antenna 7A emitted radio waves. Here, for the sake of simplification, an example in which radio waves are emitted at intervals of 2 seconds is shown, but the actual emission interval is much shorter than that, "several milliseconds." The door of the door column 102 is a number that uniquely identifies the door of the storage 4 . It should be noted that the door here is a concept that also includes a drawer. The open/close state in the open/close state column 103 is either "open" indicating that the door is open or "closed" indicating that the door is closed.
　アンテナ照射電力欄１０４のアンテナ照射電力は、入庫用アンテナ６Ａの照射電力（欄１０４ａ）及び出庫用アンテナ７Ａの照射電力（欄１０４ｂ）である。いずれの単位も“ｄＢｍ”である。ユーザは、入庫用アンテナ６Ａの照射電力及び出庫用アンテナ７Ａの照射電力のそれぞれを、扉の開閉状態ごとに設定することができる。入庫用アンテナ６Ａの照射電力及び出庫用アンテナ７Ａの照射電力は、“照射しない”であってもよい。 The antenna irradiation power in the antenna irradiation power column 104 is the irradiation power of the entering antenna 6A (column 104a) and the irradiation power of the leaving antenna 7A (column 104b). All units are "dBm". The user can set the irradiation power of the entrance antenna 6A and the irradiation power of the exit antenna 7A for each open/closed state of the door. The irradiation power of the entrance antenna 6A and the irradiation power of the exit antenna 7A may be "not irradiated".
　図５の例では、後記で説明する図８のアンテナ・センサ設定画面の設定情報に基づき、在庫管理装置１が２秒の周期で入庫用アンテナ６Ａ及び出庫用アンテナ７Ａの片方又は両方に電波を同時に照射させる。なお、入庫用アンテナ６Ａと出庫用アンテナ７Ａが片方又は両方電波を出力する動作の詳細に関しては「（ｃ）アンテナの出力タイミング」にて述べる。 In the example of FIG. 5, based on the setting information on the antenna/sensor setting screen of FIG. 8, which will be described later, the inventory management device 1 transmits radio waves to one or both of the warehousing antenna 6A and the warehousing antenna 7A at intervals of 2 seconds. be irradiated at the same time. Details of the operation of outputting radio waves from one or both of the entering antenna 6A and the leaving antenna 7A will be described in "(c) Antenna Output Timing".
　以降では、わかりやすさのために、最上段の貯蔵室内に存在する食品を管理する例を説明する。この例では、最上段の貯蔵室は、天井面に入庫用アンテナ６Ａを有し、前面に観音開きの扉４１を有する。扉４１の前面に出庫用アンテナ７Ａを有する（図２参照）。ユーザが扉４１を開けると、入庫用アンテナ６Ａから電波が照射される。ユーザが扉４１を開け、引き出し４２を開けたときでも、入庫用アンテナ６Ａから電波が照射される。 In the following, for the sake of clarity, we will explain an example of managing food in the uppermost storage compartment. In this example, the uppermost storage room has an antenna 6A for entering on the ceiling surface and a double door 41 on the front. It has the exit antenna 7A on the front surface of the door 41 (see FIG. 2). When the user opens the door 41, radio waves are emitted from the warehousing antenna 6A. Even when the user opens the door 41 and the drawer 42, radio waves are emitted from the warehousing antenna 6A.
（読取情報）
　図６は、読取情報３２の一例である。読取情報３２においては、日時欄１１１に記憶されている日時に関連付けて、アンテナ欄１１２にはアンテナが、アンテナ受信電力欄１１３にはアンテナ受信電力が、メーカ名欄１１４にはメーカ名（食品の製造者／販売者名）が、アイテム名欄１１５にはアイテム名が、移動欄１１６には移動フラグが記憶されている。 (reading information)
FIG. 6 is an example of read information 32 . In the read information 32, the date and time stored in the date and time column 111 are associated with the antenna in the antenna column 112, the antenna received power in the antenna received power column 113, and the manufacturer name (food product) in the manufacturer name column 114. The item name field 115 stores the item name, and the movement field 116 stores the movement flag.
　日時欄１１１の日時は、入庫用アンテナ６Ａ又は出庫用アンテナ７Ａが、ＲＦＩＤタグ５２からの電波を受信した、すなわち、ＲＦＩＤタグ５２を読み取った日時である。また、端末装置８０（図１参照）からデータを受信した場合はその日時である。 The date and time in the date and time column 111 is the date and time when the receiving antenna 6A or the leaving antenna 7A received the radio wave from the RFID tag 52, that is, when the RFID tag 52 was read. Also, when data is received from the terminal device 80 (see FIG. 1), it is the date and time.
　アンテナ欄１１２のアンテナは、“入庫用”、“出庫用”及び“端末”のいずれかである。“入庫用”は、ＲＦＩＤタグ５２を読み取ったアンテナが入庫用アンテナ６Ａであることを示す。“出庫用”は、ＲＦＩＤタグ５２を読み取ったアンテナが出庫用アンテナ７Ａであることを示す。“端末”は、端末装置８０（図１参照）からのデータを受信したことを示す。 The antenna in the antenna column 112 is either "for warehousing", "for warehousing", or "terminal". "For warehousing" indicates that the antenna that read the RFID tag 52 is the warehousing antenna 6A. "For leaving" indicates that the antenna that read the RFID tag 52 is the leaving antenna 7A. "Terminal" indicates that data has been received from the terminal device 80 (see FIG. 1).
　アンテナ受信電力欄１１３のアンテナ受信電力は、入庫用アンテナ６Ａ又は出庫用アンテナ７ＡがＲＦＩＤタグ５２から受信した電波の電力（強さ）であり、単位は“ｄＢｍ”である。 The antenna reception power in the antenna reception power column 113 is the power (strength) of the radio wave received by the warehousing antenna 6A or the warehousing antenna 7A from the RFID tag 52, and the unit is "dBm".
　メーカ名欄１１４のメーカ名は、ＲＦＩＤタグ５２から読み取られたコードをデータベースと照合して得られた、食品のメーカ名である。アイテム名欄１１５のアイテム名は、ＲＦＩＤタグ５２から読み取られたコードをデータベースと照合して得られた、食品の名称（普通名詞）である。 The manufacturer name in the manufacturer name column 114 is the food manufacturer name obtained by comparing the code read from the RFID tag 52 with the database. The item name in the item name column 115 is the food name (common noun) obtained by collating the code read from the RFID tag 52 with the database.
　移動欄１１６の移動フラグは、在庫管理装置１が庫外から庫内への食品の移動を検知したことを示す“入庫”、又は、庫内から庫外への食品の移動を検知したことを示す“出庫”の何れかである。 The movement flag in the movement column 116 indicates that the inventory management device 1 has detected movement of food from outside to inside, or that it has detected movement of food from inside to outside. It is any of the "outgoing" shown.
　図６の例は、図５の例に対応している。図６を見ると、例えば以下のことがわかる。
〈２０２１年９月１５日１０時００分００秒〉
　このとき、扉は開いていた（図５参照）。タグリーダライタ装置６は、入庫用アンテナ６Ａを介して、“Ａ社”の“うどん”、“Ｃ社”の“ヨーグルト”及び“Ｂ社”の“ドレッシング”を読み取った。 The example in FIG. 6 corresponds to the example in FIG. Looking at FIG. 6, for example, the following can be understood.
<10:00:00 on September 15, 2021>
At this time, the door was open (see Figure 5). The tag reader/writer device 6 reads "Udon" from "Company A", "Yogurt" from "Company C", and "Dressing" from "Company B" via the warehousing antenna 6A.
　在庫管理装置１は、１０時００分００秒の読取情報を９時５９分５８秒の読取情報と比較し、“Ａ社”の“うどん”、“Ｃ社”の“ヨーグルト”及び“Ｂ社”の“ドレッシング”が在庫品であることを確認した。 The inventory management device 1 compares the read information at 10:00:00 with the read information at 9:59:58, and finds "Udon" from "Company A", "Yogurt" from "Company C", and "Yogurt" from "Company B". Confirmed that the "dressing" in "" is in stock.
〈２０２１年９月１５日１０時００分０２秒〉
　このとき、扉は開いていた（図５参照）。タグリーダライタ装置６は、入庫用アンテナ６Ａを介して、“Ａ社”の“うどん”、“Ｃ社”の“ヨーグルト”、“Ｂ社”の“ドレッシング”及び“Ｄ社”の“瓶ビール”を読み取った。 <10:00:02 on September 15, 2021>
At this time, the door was open (see Figure 5). The tag reader/writer device 6 reads "Udon" from "Company A", "Yogurt" from "Company C", "Dressing" from "Company B", and "Bottled beer" from "Company D" via the warehousing antenna 6A. read.
　在庫管理装置１は、１０時００分０２秒の読取情報を１０時００分００秒の読取情報と比較し、“Ｄ社”の“瓶ビール”が入庫品であることを確認した。 The inventory management device 1 compared the read information at 10:00:02 with the read information at 10:00:00, and confirmed that "bottled beer" from "Company D" was an incoming item.
〈２０２１年９月１５日１０時００分５０秒〉
　この時、扉は閉じていた。タグリーダライタ装置７は、出庫用アンテナ７Ａを介して、“Ｃ社”の“ヨーグルト”を読み取った。在庫管理装置１は、“Ｃ社”の“ヨーグルト”が出庫品であることを確認した。 <10:00:50 on September 15, 2021>
At this time the door was closed. The tag reader/writer device 7 reads "Yogurt" of "Company C" through the exit antenna 7A. The inventory management device 1 has confirmed that "Yogurt" of "Company C" is a delivery item.
〈２０２１年９月１５日１０時０５分１０秒〉
　このとき、扉は開いていた。タグリーダライタ装置６は、入庫用アンテナ６Ａを介して、“Ａ社”の“うどん”及び“Ｄ社”の“瓶ビール”を読み取った。在庫管理装置１は、“Ａ社”の“うどん”及び“Ｄ社”の“瓶ビール”が在庫品であることを確認した。 <September 15, 2021 10:05:10>
At this time the door was open. The tag reader/writer device 6 reads "Udon" from "Company A" and "Bottle beer" from "Company D" via the receiving antenna 6A. The inventory management device 1 has confirmed that "Udon" from "Company A" and "Bottle beer" from "Company D" are in stock.
〈２０２１年９月１５日１１時５０分３０秒〉
　在庫管理装置１は、端末装置８０（図１参照）から“Ｅ社”の“卵”の入庫品として受理した。“Ｅ社”の“卵”には、ＲＦＩＤタグ５２が添付されておらず、二次元コードの情報を端末装置８０で読取ったもので考えられる。 <11:50:30 on September 15, 2021>
The inventory management device 1 accepts from the terminal device 80 (see FIG. 1) as an incoming item of "egg" of "E company". The RFID tag 52 is not attached to the “egg” of “E Company”, and it is considered that the information of the two-dimensional code is read by the terminal device 80 .
（在庫情報）
　図７は、在庫情報３３の一例である。在庫情報３３においては、日時欄１２１には時刻が、在庫位置欄１２２には在庫位置が、メーカ名欄１２３にはメーカ名が、アイテム名欄１２４にはアイテム名が、入庫日欄１２５には入庫日が、摘要欄１２６には摘要が記憶されている。なお、入庫日欄１２５は、入庫日時欄であってもよい。 (Inventory information)
FIG. 7 is an example of the inventory information 33. As shown in FIG. In the inventory information 33, the date and time column 121 indicates the time, the inventory position column 122 indicates the inventory position, the manufacturer name column 123 indicates the manufacturer name, the item name column 124 indicates the item name, and the receipt date column 125 indicates the name of the manufacturer. The warehousing date and the summary are stored in the summary column 126 . Note that the warehousing date column 125 may be a warehousing date and time column.
　日時欄１２１の時刻は、在庫を確定する時刻である。在庫位置欄１２２の在庫位置は、保管庫が複数ある場合のその所在である。メーカ名欄１２３のメーカ名は、図６のメーカ名と同じである。アイテム名欄１２４のアイテム名は、図６のアイテム名と同じである。入庫日欄１２５の入庫日は保管庫４に長く滞留していないか等を判断する際に利用される。 The time in the date and time column 121 is the time when the inventory is fixed. The inventory position in the inventory position column 122 is the location of a plurality of storages. The manufacturer name in the manufacturer name column 123 is the same as the manufacturer name in FIG. Item names in the item name column 124 are the same as the item names in FIG. The warehousing date in the warehousing date column 125 is used when judging whether or not the product has been staying in the storage 4 for a long time.
　摘要欄１２６の摘要は、“入庫”かどうかである。 The summary of the summary column 126 is whether or not it is "stocking".
　図７の例は、図６の例に対応している。図７を見ると、例えば以下のことがわかる。
〈２０２１年９月１５日１０時０５分１０秒〉の時点で、タグリーダライタ装置６は、入庫用アンテナ６Ａを介して、“Ａ社”の“うどん”及び“Ｄ社”の“瓶ビール”を読み取っているが、“Ｂ社”の“ドレッシング”を読み取っていない。たまたまヌル点にいた場合や、周囲の金属容器などの影響で読み取っていない場合があるため、 “ドレッシング”が保管庫４外にでていると誤認識するのを防ぐため、扉が開いた場合のイベントドリブンでのみ入庫用アンテナ６Ａ出の検知情報を取得し、摘要欄１２６の“入庫”かどうかを判断する。 The example in FIG. 7 corresponds to the example in FIG. Looking at FIG. 7, for example, the following can be understood.
At <10:05:10 on September 15, 2021>, the tag reader/writer device 6 reads “udon” from “Company A” and “bottled beer” from “Company D” via the warehousing antenna 6A. It is read, but it is not read "Dressing" of "B Company". If you happen to be at the null point or if the reading is not done due to the influence of the surrounding metal containers, etc., to prevent misidentification that the “dressing” is outside the storage cabinet 4, when the door is opened The detection information of the output of the antenna 6A for warehousing is acquired only by the event driven of , and it is judged whether it is "warehousing" of the summary column 126 or not.
（アンテナ・センサ設定画面）
　図８は、アンテナ・センサ設定画面６１の一例である。在庫管理装置１は、在庫管理装置１のユーザから、アンテナ・センサ設定画面６１上で、アンテナ等に関する設定を受け付ける。図８における入庫用アンテナ６Ａ、出庫用アンテナ７Ａ及び扉４１の位置関係は、図２から図４に示す通りである。 (Antenna/sensor setting screen)
FIG. 8 is an example of the antenna/sensor setting screen 61 . The inventory management device 1 receives settings related to the antenna and the like on the antenna/sensor setting screen 61 from the user of the inventory management device 1 . The positional relationship between the entering antenna 6A, the leaving antenna 7A, and the door 41 in FIG. 8 is as shown in FIGS.
　ユーザは、通常、入庫用アンテナ６Ａ欄６２において“使用する”を選択し、出庫用アンテナ７Ａ欄６３においても“使用する”を選択する。図８では、■は選択を、□は非選択を示す。出庫の手続きを、端末装置８０（図１参照）だけでする際は、出庫用アンテナ７Ａを“使用しない”に設定することもできる。 The user normally selects "use" in the entry antenna 6A column 62 and also selects "use" in the exit antenna 7A column 63. In FIG. 8, ▪ indicates selection and □ indicates non-selection. When the leaving procedure is performed only by the terminal device 80 (see FIG. 1), the leaving antenna 7A can be set to "not used".
　ユーザは、入庫用アンテナ６Ａについて“使用する”を選択した場合、開扉時の照射電力を欄６２ａに、閉扉時の照射電力を欄６２ｂに設定することができる。ユーザは、出庫用アンテナ７Ａについて“使用する”を選択した場合、閉扉時の照射電力を欄６３ａに、閉扉時の照射電力を欄６３ｂに設定することができる。一般に、ユーザが食品を保管庫に入庫する際は、一度に多くの品を入れる場合が多いので、広範囲に読み取れることが好ましい。そのため、電波照射強度は大きい方がよい。一方、出庫する際は、基本的にＲＦＩＤタグ５２をタッチして、又は、近接に近づけて読み取るので、電波照射強度は小さくてもよい。すなわち、“＃iｏ＞＃ｏｃ”のように設定する。 When the user selects "Use" for the entrance antenna 6A, the user can set the irradiation power when the door is opened in the field 62a and the irradiation power when the door is closed in the field 62b. When the user selects "use" for the exit antenna 7A, the user can set the irradiation power when the door is closed in the field 63a and the irradiation power when the door is closed in the field 63b. In general, when a user puts food into a storage, it is often the case that many items are put in at once, so it is preferable that the user can read the food in a wide range. Therefore, the radio wave irradiation intensity should be high. On the other hand, when leaving the garage, basically the RFID tag 52 is touched or read by bringing it close, so the radio wave irradiation intensity may be low. That is, it is set like "# io ># oc ".
　扉４１が開いている期間に保管庫への食品の入庫が検知できる。なお、電波の照射の開始について、扉の取っ手等にタッチセンサ（静電容量センサ）が付されており、ユーザが扉を開けようと取っ手に触れたときに、タッチセンサがオンになって“開”を検知する（つまり電波照射開始）構成でもよい。 Entry of food into the storage can be detected while the door 41 is open. Regarding the start of radio wave irradiation, a touch sensor (capacitance sensor) is attached to the handle of the door, etc. When the user touches the handle to open the door, the touch sensor turns on. A configuration in which "open" is detected (that is, radio wave irradiation is started) may be used.
　ユーザは、キッチン内人感センサ欄６４において、“使用する”又は“使用しない”のいずれかを選択する。キッチン内に人がいるときにのみ、出庫の処理をしたい場合、ユーザは“使用する”を選択する。ユーザは、キッチン内照度センサ欄６５において、“使用する”又は“使用しない”のいずれかを選択する。例えば夜間キッチン内に人が入ってきたときにのみ出庫の処理をしたい場合、ユーザは“使用する”を選択する。 The user selects either "use" or "do not use" in the kitchen human detection sensor column 64. The user selects "use" when desiring to process delivery only when there is a person in the kitchen. The user selects either “use” or “do not use” in the kitchen interior illuminance sensor field 65 . For example, the user selects "use" when desiring to perform the leaving process only when a person enters the kitchen at night.
　キッチン内人感センサ欄６４又はキッチン内照度センサ欄６５の少なくとも一方において“使用する”を選択する場合がある。この場合、在庫管理装置１は、人感センサによる人の検知を契機として、又は、照度センサによる所定の閾値以上の照度の検知を契機として、出庫用アンテナ７Ａの照射電力を出力する。 "Use" may be selected in at least one of the in-kitchen human sensor field 64 or the in-kitchen illuminance sensor field 65. In this case, the inventory management device 1 outputs the irradiation power of the exit antenna 7A when the human sensor detects a person or when the illuminance sensor detects illuminance equal to or greater than a predetermined threshold.
　ユーザは、アンテナ電波照射期間欄６６において、入庫用アンテナ６Ａ及び出庫用アンテナ７Ａの電波照射期間を設定する。通常、ユーザは、欄６６ｂ及び欄６６ｆを選択し、欄６６ｂの“［　］”内に、例えば“１”を入力し、欄６６ｆの［　］”内に、例えば“９０”を入力する。同様にユーザは、キッチン内人感センサ欄６４において“使用する”を選択した場合、欄６６ｃ及び／又は欄６６ｇを選択し、“［　］”内に適当な値を入力する。ユーザは、キッチン内照度センサ欄６５において“使用する”を選択した場合、欄６６ｄ及び／又は欄６６ｈを選択し、“［　］”内に適当な値を入力する。 The user sets the radio wave irradiation period of the warehousing antenna 6A and the warehousing antenna 7A in the antenna radio wave irradiation period column 66. Ordinarily, the user selects fields 66b and 66f, enters, for example, "1" in "[]" of field 66b, and enters, for example, "90" in []" of field 66f. When the user selects "use" in the kitchen human sensor column 64, the user selects the column 66c and/or the column 66g and enters an appropriate value in "[ ]". When "use" is selected in the illuminance sensor column 65, select the column 66d and/or the column 66h and enter an appropriate value in "[]".
　なお、照射電力については、本実施形態ではユーザが入力することとしたが、ユーザの無線免許要・不要の意向に応じて、保管庫４の提供者が、無線免許要の場合“３６ｄＢｍ”以下、無線免許不要の場合“２７ｄＢｍ”以下の様に法規に合わせて適当な値を設定してもよい。また、ユーザが、強（無線基地局免許に対応している場合）、中（無線基地局申請が不要な場合）、弱（無線基地局申請が不要な場合）のような３段階から選択してもよい。 In this embodiment, the irradiation power is input by the user. However, depending on the user's intention of whether or not a wireless license is required, the provider of the storage box 4 may set the power to "36 dBm or less" if a wireless license is required. If no radio license is required, an appropriate value may be set according to regulations, such as "27 dBm" or less. In addition, the user can select from three levels: strong (if a radio base station license is supported), medium (if a radio base station application is not required), and weak (if a radio base station application is not required). may
　なお、扉４１を閉じる間に、扉４１に設けた物品保持手段４３（ドアポケット）に保管した食品に取り付けられたＲＦＩＤタグ５２と、入庫用アンテナ６Ａとの距離や方向が変化する。このことに応じて、入庫用アンテナ６Ａは、ＲＦＩＤタグ５２からの電波をより受信しやすいという特徴も備える。同様に、引き出し４４を閉じる間に、引き出し４４内に保管した食品に取り付けられたＲＦＩＤタグ５２と、入庫用アンテナ６Ａとの距離や方向が変化する。このことにも応じて、入庫用アンテナ６Ａは、ＲＦＩＤタグ５２からの電波をより受信しやすいという特徴も備える。 Note that while the door 41 is closed, the distance and direction between the RFID tag 52 attached to the food stored in the article holding means 43 (door pocket) provided on the door 41 and the warehousing antenna 6A changes. Corresponding to this, the warehousing antenna 6A also has a feature that it is easier to receive radio waves from the RFID tag 52 . Similarly, while the drawer 44 is closed, the distance and direction between the RFID tag 52 attached to the food stored in the drawer 44 and the warehousing antenna 6A changes. In response to this, the warehousing antenna 6A also has the feature of being able to receive radio waves from the RFID tag 52 more easily.
（処理手順）
　図９は、処理手順の一例を示すフローチャートである。
　ステップＳ２０１において、在庫管理装置１の入出力処理部２１は、扉４１が開けられたことの検知の有無を判定し、扉４１が開けられていない場合（ステップＳ２０１，Ｎｏ）、ステップＳ２０１に戻り、扉４１が開けられた場合（ステップＳ２０１，Ｙｅｓ）、ステップＳ２０２に進む。 (Processing procedure)
FIG. 9 is a flow chart showing an example of a processing procedure.
In step S201, the input/output processing unit 21 of the inventory management device 1 determines whether or not it is detected that the door 41 has been opened. If the door 41 has not been opened (step S201, No), the process returns to step S201. If the door 41 is opened (step S201, Yes), the process proceeds to step S202.
　ステップＳ２０２において、入出力処理部２１は、タグリーダライタ装置６に入庫用アンテナ６Ａからの電波出力を開始させる。具体的には、入出力処理部２１は、入庫用アンテナ６Ａから電波を照射させ、反射した電波を受信させる。このとき、入庫用アンテナ６Ａは、複数の食品に添付されているＲＦＩＤタグを同時に読み取るものとする。 In step S202, the input/output processing unit 21 causes the tag reader/writer device 6 to start outputting radio waves from the warehousing antenna 6A. Specifically, the input/output processing unit 21 emits radio waves from the warehousing antenna 6A and receives the reflected radio waves. At this time, the warehousing antenna 6A simultaneously reads RFID tags attached to a plurality of foods.
　ステップＳ２０３において、タグリーダライタ装置６は、ＲＦＩＤタグからの読取り情報を在庫管理装置１の入出力処理部２１に送信し、入出力処理部２１は、読取情報３２として記憶する。 In step S203, the tag reader/writer device 6 transmits read information from the RFID tag to the input/output processing unit 21 of the inventory management device 1, and the input/output processing unit 21 stores it as read information 32.
　ステップＳ２０４において、在庫管理装置１の入出力処理部２１は、扉４１が閉じられたことの検知の有無を判定し、扉４１が閉じられていない場合（ステップＳ２０４，Ｎｏ（開））、ステップＳ２０３に戻り、扉４１が閉じられた場合（ステップＳ２０４，Ｙｅｓ（閉））、ステップＳ２０５及びステップＳ２０８に進む。 In step S204, the input/output processing unit 21 of the inventory management device 1 determines whether or not it is detected that the door 41 is closed. If the door 41 is not closed (step S204, No (open)), step Returning to S203, if the door 41 is closed (step S204, Yes (closed)), the process proceeds to steps S205 and S208.
　ステップＳ２０５において、タグリーダライタ装置６は、ＲＦＩＤタグからの読取り情報を在庫管理装置１の入出力処理部２１に送信し、入出力処理部２１は、読取情報３２として記憶する。 In step S205, the tag reader/writer device 6 transmits read information from the RFID tag to the input/output processing unit 21 of the inventory management device 1, and the input/output processing unit 21 stores it as read information 32.
　ステップＳ２０６において、入出力処理部２１は、アンテナ・センサ設定画面６１で設定された入庫用アンテナ６Ａの設定時間（例えば、欄６６ｂの１秒）を経過したか否かを判定し、設定時間を経過していない場合（ステップＳ２０６，Ｎｏ）、ステップＳ２０５に戻り、設定時間を経過した場合（ステップＳ２０６，Ｙｅｓ）、ステップＳ２０７に進む。ここで、ステップＳ２０６の設定時間は０としてもよい。
　なお、ステップＳ２０６の設定時間の詳細に関しては「（ｃ）アンテナの出力タイミング」にて述べる。 In step S206, the input/output processing unit 21 determines whether or not the set time (for example, 1 second in the column 66b) of the warehousing antenna 6A set on the antenna/sensor setting screen 61 has elapsed. If it has not elapsed (step S206, No), the process returns to step S205, and if the set time has elapsed (step S206, Yes), the process proceeds to step S207. Here, the set time in step S206 may be zero.
Details of the time set in step S206 will be described in "(c) Antenna Output Timing".
　ステップＳ２０７において、入出力処理部２１は、タグリーダライタ装置６に入庫用アンテナ６Ａからの電波出力を停止させる。 In step S207, the input/output processing unit 21 causes the tag reader/writer device 6 to stop outputting radio waves from the warehousing antenna 6A.
　ステップＳ２０８において、入出力処理部２１は、タグリーダライタ装置７に出庫用アンテナ７Ａからの電波出力を開始させる。具体的には、入出力処理部２１は、出庫用アンテナ７Ａから電波を照射させ、反射した電波を受信させる。 In step S208, the input/output processing unit 21 causes the tag reader/writer device 7 to start outputting radio waves from the exit antenna 7A. Specifically, the input/output processing unit 21 emits radio waves from the exit antenna 7A and receives the reflected radio waves.
　ステップＳ２０９において、タグリーダライタ装置７は、ＲＦＩＤタグからの読取り情報を在庫管理装置１の入出力処理部２１に送信し、入出力処理部２１は、読取情報３２として記憶する。 In step S209, the tag reader/writer device 7 transmits read information from the RFID tag to the input/output processing unit 21 of the inventory management device 1, and the input/output processing unit 21 stores it as read information 32.
　ステップＳ２１０において、入出力処理部２１は、アンテナ・センサ設定画面６１で設定された出庫用アンテナ７Ａの設定時間（例えば、欄６６ｆの９０秒）を経過したか否かを判定し、設定時間を経過していない場合（ステップＳ２１０，Ｎｏ）、ステップＳ２０９に戻り、設定時間を経過した場合（ステップＳ２１０，Ｙｅｓ）、ステップＳ２１１に進む。 In step S210, the input/output processing unit 21 determines whether or not the set time for the exit antenna 7A set on the antenna/sensor setting screen 61 (for example, 90 seconds in the column 66f) has elapsed. If it has not elapsed (step S210, No), the process returns to step S209, and if the set time has elapsed (step S210, Yes), the process proceeds to step S211.
　ステップＳ２１１において、入出力処理部２１は、タグリーダライタ装置７に出庫用アンテナ７Ａからの電波出力を停止させる。 In step S211, the input/output processing unit 21 causes the tag reader/writer device 7 to stop outputting radio waves from the exit antenna 7A.
　ステップＳ２１２において、入出力処理部２１は、読取情報３２に基づいて、在庫情報３３を更新し、ステップＳ２０１に戻る。 In step S212, the input/output processing unit 21 updates the inventory information 33 based on the read information 32, and returns to step S201.
　以上説明したように、在庫管理システム１００では、保管庫４の入出庫の管理が適切に行える。
　在庫管理システム１００の機能及び特徴をさらに説明する。
（ａ）入出庫時のＲＦＩＤタグの認識
　入庫時は庫内に設けられた入庫用アンテナ６Ａにより遠方までＲＦＩＤタグを読んで、自動認識できる。
　出庫の際には、扉を閉じた際に触れられる位置に出庫用アンテナ７Ａ（認識位置）を配置し、出庫用アンテナ７ＡにＲＦＩＤタグをタッチ（０～５cm程度の距離とし、タッチと呼ぶ）してＲＦＩＤタグを検知できるよう、つまり近傍のみ検知可能なように電波強度を小さくする。
　入庫時は、ユーザが扉を開けた状態で、ＲＦＩＤタグが付いた食品／食材を庫内に入れる。その際に、ＲＦＩＤタグが移動しながら庫内に配置されるので、入庫用アンテナ電波の庫内のヌル点又は、ＲＦＩＤタグが金属物の影に隠れているのも移動で相対位置が変わり、入庫検知されないのを防止することができる。入庫時に入庫検知されないのを防止することができるので、在庫時の扉が閉じた定常状態や、定時的に在庫リストの更新をする必要がなく、特許文献１及び特許文献２での「出庫」と誤判定するのを防止できる。 As described above, the inventory management system 100 can appropriately manage the entry and exit of the stocker 4 .
The functions and features of inventory management system 100 are further described.
(a) Recognition of RFID tag when entering/exiting When entering/exiting, the RFID tag can be read from a distance by the antenna for entering/exiting 6A provided in the warehouse, and can be automatically recognized.
When exiting the warehouse, the exit antenna 7A (recognition position) is placed at a position that can be touched when the door is closed, and the RFID tag is touched to the exit antenna 7A (at a distance of about 0 to 5 cm, which is called a touch). Then, the radio wave intensity is reduced so that the RFID tag can be detected, that is, the radio wave intensity can be detected only in the vicinity.
When entering the warehouse, the user opens the door and puts the food/ingredients with the RFID tag into the warehouse. At that time, since the RFID tag is placed in the storage while moving, the relative position of the null point of the radio wave of the antenna for entering the storage inside the storage or the RFID tag hidden in the shadow of the metal object changes due to the movement. It is possible to prevent undetected storage. Since it is possible to prevent undetected warehousing at the time of warehousing, there is no need to update the inventory list periodically, such as the steady state in which the door is closed at the time of inventory, and the "outgoing" in Patent Document 1 and Patent Document 2. erroneous determination can be prevented.
　また、出庫時には、ユーザが扉を閉じた状態で、出庫用アンテナの近傍にＲＦＩＤタグが付いた食品を近づけて、当該ＲＦＩＤタグを読み取り、適切に出庫を検知できる。 Also, when leaving the store, the user can bring the food with the RFID tag near the delivery antenna while the door is closed, read the RFID tag, and appropriately detect the delivery.
　複数の食品／食材の出庫時は（冷蔵庫扉を閉める前に）、一旦出庫した食品／食材をカウンタに移動させ、続けて次の品を取り出す場合もある。この場合、出庫の際に、入庫と同様にＲＦＩＤタグを認識しようとすると、ＲＷアンテナ（リードライトアンテナ）とユーザの間にＲＦＩＤタグ付き食材が存在する時間が短く、ユーザの人体により電波が遮断され、ＲＦＩＤタグを冷蔵庫に設置したアンテナで読み取れないため出庫の認識ができず、出庫時の在庫判定確度が低下する課題があった。 When multiple foods/ingredients are taken out (before closing the refrigerator door), the food/ingredients once taken out are moved to the counter, and the next item may be taken out in succession. In this case, when trying to recognize the RFID tag at the time of leaving the warehouse in the same way as entering the warehouse, the time that the food with the RFID tag exists between the RW antenna (read write antenna) and the user is short, and the radio waves are blocked by the user's body. However, since the RFID tag could not be read by the antenna installed in the refrigerator, it was not possible to recognize that the refrigerator had left the warehouse.
　本実施形態例では、出庫の際に一品ずつではあるが、ＲＷアンテナである出庫用アンテナ７Ａとユーザの間にＲＦＩＤタグを移動できるので、出庫した品のＲＦＩＤタグを順に出庫用アンテナ７Ａにタッチすれば、確実に出庫を認識できる。 In this embodiment, the RFID tag can be moved between the shipping antenna 7A, which is a RW antenna, and the user, although it is one item at a time when the item is retrieved. Then, the delivery can be reliably recognized.
　また、複数個取り出す際も、一度に手に取って搬出可能な食品数は限られるため、扉（ドア）を解放したままでは出庫の認識をさせにくいため、ユーザが一旦扉を閉じて出庫を認識させることとなり、ドアの開けっ放しにより冷気が庫外へ出ることや庫内へ冷蔵庫周囲の空気が流入することを抑制し、消費電力量増加を抑制できる。 Also, when taking out multiple items, the number of items that can be picked up and taken out at one time is limited. As a result, it is possible to suppress cold air from leaving the refrigerator and air around the refrigerator from flowing into the refrigerator due to the door being left open, thereby suppressing an increase in power consumption.
（ｂ）出庫用アンテナ7Ａの出力
　アンテナの出力（電波強度）は、入庫用アンテナ＞出庫用アンテナとする。図８に示したアンテナ・センサ設定画面で設定できる。
　出庫用は、流通用のＲＦＩＤタグ（アンテナサイズ：２２×４４ｍｍ程度）では、１０ｄＢｍ程度での出力でアンテナから５ｃｍ程度離れていても認識可能である。０～５ｃｍ程度の距離が離れているＲＦＩＤタグを認識することを本実施形態ではタッチ認識とする。
　出力している状態でのアンテナの電波強度は、前記したように、入庫用アンテナ＞出庫用アンテナとなる。つまり、アンテナがＲＦＩＤタグを認識する最大距離は、入庫用アンテナ＞出庫用アンテナの構成で、入庫の自動認識、出庫のタッチによる手動認識が可能である。 (b) Output of exiting antenna 7A Antenna output (radio field intensity) is such that entry antenna > exiting antenna. It can be set on the antenna/sensor setting screen shown in FIG.
For delivery, a distribution RFID tag (antenna size: about 22×44 mm) can be recognized even at a distance of about 5 cm from the antenna with an output of about 10 dBm. In the present embodiment, recognizing RFID tags separated by a distance of about 0 to 5 cm is defined as touch recognition.
The radio wave intensity of the antenna in the output state is, as described above, the antenna for entering the warehouse>the antenna for leaving the warehouse. In other words, the maximum distance for the antenna to recognize the RFID tag is the configuration of the antenna for entering > the antenna for leaving, and automatic recognition of entering and manual recognition of leaving by touch are possible.
　出庫用アンテナ７Ａは、通信距離が５ｃｍ以下の近距離を検知可能なアンテナであるとよい。
　例えば、開口面アンテナの場合は、アンテナ長Ｄ、用いる電波の波長をλとした場合、近傍界距離Ｒ＝２Ｄ２／λである。
　よって、Ｄ＝√（Ｒλ／２）＝√（５０・３２６／２）＝９０.３ｍｍとすればよい。なお、ＵＨＦ帯の周波数ｆ＝９２０ＭＨｚを使用すると、波長はλ＝３２６ｍｍである。すなわち、タグ読取距離を５０ｍｍ以内とする場合、開口アンテナ長を９０ｍｍとすればよい。なお、アンテナ長はアンテナ構造によって同等の効果が得られるよう変更して問題ない。 The exit antenna 7A is preferably an antenna capable of detecting short distances with a communication distance of 5 cm or less.
For example, in the case of an aperture antenna, the near-field distance R=2D 2 /λ, where D is the antenna length and λ is the wavelength of the radio wave to be used.
Therefore, D=√(Rλ/2)=√(50·326/2)=90.3 mm. It should be noted that if the UHF band frequency f=920 MHz is used, the wavelength is λ=326 mm. That is, when the tag reading distance is within 50 mm, the aperture antenna length should be 90 mm. It should be noted that the antenna length may be changed so that the same effect can be obtained depending on the antenna structure.
（ｃ）アンテナの出力タイミング
　入庫／出庫用アンテナは各々１００ミリ秒オーダーの周期でパルス的に電波を出力する動作を行う。このパルスのタイミングにより、扉／引出し閉鎖後に入庫用アンテナ６Ａが電波を放射する時間（ステップＳ２０６の設定時間）およびリーダライタの構成は次の通り決定される。 (c) Output Timing of Antenna Each of the entering/leaving antennas outputs a pulsed radio wave with a period of 100 milliseconds. Based on the timing of this pulse, the time during which the receiving antenna 6A emits radio waves after the door/drawer is closed (set time in step S206) and the configuration of the reader/writer are determined as follows.
　図１４は、入庫用アンテナ６Ａと出庫用アンテナ７Ａの電波の出力タイミングを示した図である。図１４（１）～（４）各々において、横軸は時刻であり、上側に入庫用アンテナ６Ａの出力タイミングを示しており、下側に出庫用アンテナ７Ａの出力タイミングを示している。出力タイミングを示した矩形波の上側にて電波を出力し、下側では電波を出力しない。矩形波を構成するパルスの周期は一般的に１００ミリ秒オーダーであるが、一例であり他の長さであって構わない。 FIG. 14 is a diagram showing the output timing of the radio waves of the warehousing antenna 6A and the warehousing antenna 7A. In each of FIGS. 14(1) to 14(4), the horizontal axis represents time, and the upper side indicates the output timing of the warehousing antenna 6A, and the lower side indicates the output timing of the warehousing antenna 7A. A radio wave is output on the upper side of the rectangular wave indicating the output timing, and no radio wave is output on the lower side. The period of the pulses forming the rectangular wave is generally on the order of 100 milliseconds, but this is just an example and may be of other lengths.
（１）の場合：ステップＳ２０６の設定時間はゼロ秒となる。この場合、扉／引出し開放時は入庫用アンテナ６Ａのみが電波を出力し、扉／引出し閉鎖後は出庫用アンテナ７Ａのみが電波を出力するため、入庫用アンテナ６Ａ用のリーダライタおよび出庫用アンテナ７Ａ用のリーダライタの２個からなる構成、１個のリーダライタおよびリーダライタの出力端に入庫用アンテナ６Ａおよび出庫用アンテナ７Ａへの接続経路を切り替えるスイッチを挿入する構成のいずれかの構成であることが望ましい。また、図２に示した入庫用アンテナ６Ａの電波照射領域８が扉／引出し閉鎖時に出庫用アンテナ７Ａの電波照射領域９に一部重複していても構わない。出庫時に入庫用アンテナ６Ａがタグを読み取ることがないため、誤判定は発生しないからである。 Case (1): The time set in step S206 is zero seconds. In this case, only the entry antenna 6A outputs radio waves when the door/drawer is open, and only the exit antenna 7A outputs radio waves after the door/drawer is closed. Either a configuration consisting of two reader/writers for 7A or a configuration in which one reader/writer and a switch for switching the connection path to the warehousing antenna 6A and the warehousing antenna 7A are inserted in the output end of the reader/writer. It is desirable to have Further, the radio wave irradiation region 8 of the entering antenna 6A shown in FIG. 2 may partially overlap with the radio wave irradiation region 9 of the leaving antenna 7A when the door/drawer is closed. This is because the tag is not read by the warehousing antenna 6A at the time of leaving the warehousing, so that an erroneous determination does not occur.
（２）の場合：ステップＳ２０６の設定時間はゼロ秒より大きい値となる。この場合、入庫用アンテナ６Ａおよび出庫用アンテナ７Ａが電波を出力するスロットが重複しないため、（１）の場合と同様に入庫用アンテナ６Ａ用のリーダライタおよび出庫用アンテナ７Ａ用のリーダライタの２個からなる構成、１個のリーダライタおよびリーダライタの出力端に入庫用アンテナ６Ａおよび出庫用アンテナ７Ａへの接続経路を切り替えるスイッチを挿入する構成のいずれかの構成であることが望ましい。また、図２に示した入庫用アンテナ６Ａの電波照射領域８が扉／引出し閉鎖時に出庫用アンテナ７Ａの電波照射領域９に一部重複していても構わない。これは次の理由による。 Case (2): The time set in step S206 is greater than zero seconds. In this case, since the slots from which the entering antenna 6A and the leaving antenna 7A output radio waves do not overlap, the reader/writer for the entering antenna 6A and the reader/writer for the leaving antenna 7A are connected as in the case of (1). It is desirable to have either a configuration consisting of a single reader/writer or a configuration in which a switch is inserted at the output end of one reader/writer and the connection path to the receiving antenna 6A and the leaving antenna 7A. Further, the radio wave irradiation region 8 of the entering antenna 6A shown in FIG. 2 may partially overlap with the radio wave irradiation region 9 of the leaving antenna 7A when the door/drawer is closed. This is for the following reasons.
　まず、電波照射領域８の一部が電波照射領域９と重複した場合でも入庫用アンテナ６Ａと出庫用アンテナ７Ａが電波を出力するスロットが重複しないため、タグ読取の信号の干渉は発生しない。また、電波照射領域８の一部が電波照射領域９と重複することで、出庫時に保管庫外に存在するＲＦＩＤタグを出庫用アンテナ７Ａで読取る前後に入庫用アンテナ６Ａが読み取った場合は、扉／引出し閉鎖後の在庫判定に用いるＲＦＩＤタグ読取結果として出庫用アンテナ７Ａでのタグ読取結果の重みづけを重くすることにより、入庫用アンテナ６Ａでの誤読取結果を排除できるからである。また、扉／引出し閉鎖後に出庫用アンテナ７ＡでＲＦＩＤタグが読み取れず入庫用アンテナ６Ａで読取れた場合は、ユーザが出庫管理を求めなかったケースである（調味料のように出庫後に短時間で再入庫させるため、出庫判定を求めない）ため、本発明で提供する在庫管理の機能を損じることはないためである。 First, even if part of the radio wave irradiation area 8 overlaps with the radio wave irradiation area 9, the radio wave output slots of the warehousing antenna 6A and the warehousing antenna 7A do not overlap, so there is no interference with the tag reading signal. In addition, since part of the radio wave irradiation area 8 overlaps with the radio wave irradiation area 9, when the RFID tag existing outside the storage is read by the leaving antenna 7A before and after the entering antenna 6A reads the RFID tag, the door / This is because the erroneous reading result of the warehousing antenna 6A can be eliminated by weighting the tag reading result of the leaving antenna 7A as the RFID tag reading result used for inventory determination after the drawer is closed. Also, if the RFID tag could not be read by the exit antenna 7A after the door/drawer was closed, but could be read by the entrance antenna 6A, this is a case where the user did not request management of exit (such as seasonings, which are This is because the inventory control function provided by the present invention is not impaired because the inventory management function provided by the present invention is not required.
（３）の場合：ステップＳ２０６の設定時間はゼロ秒より大きい値となる。この場合、入庫用アンテナ６Ａおよび出庫用アンテナ７Ａが電波を出力するスロットが全部重複するため、リーダライタは入庫用アンテナ６Ａに接続されるものと出庫用アンテナ７Ａに接続されるものの少なくとも２個から構成される。また、図２に示した入庫用アンテナ６Ａの電波照射領域８が扉／引出し閉鎖時に出庫用アンテナ７Ａの電波照射領域９と重複しないことが望ましい。これは入庫用アンテナ６Ａと出庫用アンテナ７Ａが電波を出力するスロットが重複するとこにより、信号の干渉が発生しタグ情報が正確に読み取れなくなる危険性があるためである。よって、扉４１または引き出し４２または引き出し４４の前面に電波遮蔽材である金属物やアルミ蒸着材で被覆された断熱材を配置する構成が望ましい。 Case (3): The time set in step S206 is greater than zero seconds. In this case, since the slots from which the entering antenna 6A and the leaving antenna 7A output radio waves overlap, at least two reader/writers, one connected to the entering antenna 6A and the other connected to the leaving antenna 7A, are used. Configured. Further, it is desirable that the radio wave irradiation region 8 of the entrance antenna 6A shown in FIG. 2 does not overlap with the radio wave irradiation region 9 of the exit antenna 7A when the door/drawer is closed. This is because there is a risk that signal interference will occur and the tag information will not be able to be read accurately due to the overlap of the slots from which the receiving antenna 6A and the leaving antenna 7A output radio waves. Therefore, it is desirable to arrange a metal object as a radio wave shielding material or a heat insulating material coated with an aluminum deposition material on the front surface of the door 41 or the drawer 42 or the drawer 44 .
（４）の場合：ステップＳ２０６の設定時間はゼロ秒より大きい値となる。この場合、入庫用アンテナ６Ａおよび出庫用アンテナ７Ａが電波を出力するスロットが一部重複するため、リーダライタは入庫用アンテナ６Ａに接続されるものと出庫用アンテナ７Ａに接続されるものの少なくとも２個から構成される。また、図２に示した入庫用アンテナ６Ａの電波照射領域８が扉／引出し閉鎖時に出庫用アンテナ７Ａの電波照射領域９と重複しないことが望ましい。この理由は（３）にて記載した内容と同様である。 Case (4): The time set in step S206 is greater than zero seconds. In this case, since the slots from which the entering antenna 6A and the leaving antenna 7A output radio waves partially overlap, there are at least two reader/writers, one connected to the entering antenna 6A and the other connected to the leaving antenna 7A. consists of Further, it is desirable that the radio wave irradiation region 8 of the entrance antenna 6A shown in FIG. 2 does not overlap with the radio wave irradiation region 9 of the exit antenna 7A when the door/drawer is closed. The reason for this is the same as the content described in (3).
　なお、扉／引出し閉鎖後の出庫用アンテナ７Ａが電波を照射する時間は例えば３０秒～１分程度である。図８に示したアンテナ・センサ設定画面で、任意に設定できる。
　扉／引出しの開閉情報の取得には扉の開閉センサを利用するとよい。
　扉開閉センサ以外に、人感センサ、庫外カメラ、庫内カメラ（扉を開けたとき起動）、タッチセンサを用いて、扉開閉後以外でも出庫（廃棄等の使い切った）認識も可能である。また、出庫用アンテナ７Ａ付近に、出庫用アンテナ７Ａを起動させるタッチスイッチ、メカ式スイッチを設けてもよい。 After the door/drawer is closed, the exit antenna 7A emits radio waves for about 30 seconds to 1 minute, for example. It can be set arbitrarily on the antenna/sensor setting screen shown in FIG.
A door open/close sensor may be used to acquire door/drawer open/close information.
In addition to the door open/close sensor, it is also possible to recognize the exit of the warehouse (used up, such as disposal) even after the door is opened and closed by using the motion sensor, the camera outside the warehouse, the camera inside the warehouse (activated when the door is opened), and the touch sensor. . Further, a touch switch or a mechanical switch for activating the exit antenna 7A may be provided near the exit antenna 7A.
　出庫時には、入庫用アンテナ６Ａの影響を受けにくいため、誤認識しにくい。扉を開かなくても、出庫用アンテナ７ＡがＯＮできる。また、アンテナは常時電波を出力する必要はなく、扉の開閉等のユーザの動作を検知することで、システム動作開始をイベントドリブン（イベント駆動型）とすることで消費電力増加を抑制できる。本実施形態では、複数個出庫した場合でも、認識できるように扉が閉じた後一定期間検知可能としている。 At the time of leaving the warehouse, it is less likely to be erroneously recognized because it is less likely to be affected by the receiving antenna 6A. The exit antenna 7A can be turned on without opening the door. In addition, the antenna does not need to constantly output radio waves, and by detecting user actions such as door opening and closing, system operation start can be event-driven, thereby suppressing an increase in power consumption. In this embodiment, it is possible to detect for a certain period of time after the door is closed so that it can be recognized even when a plurality of items have been taken out.
（ｄ）入庫用アンテナ６Ａで検知した際の、入庫と在庫の区別
　在庫リストに有りの場合、在庫リストはそのままとする。
　在庫リストに無しの場合、新規入庫品として、在庫リストに追加する。入庫検知タイミングで、在庫リストに有る庫内の在庫品が、入庫用アンテナ６Ａで認識できなくても、「出庫」の誤検知とならない。 (d) Distinction between warehousing and inventory when detected by the warehousing antenna 6A If there is an inventory list, the inventory list is left as it is.
If there is nothing in the inventory list, add it to the inventory list as a new incoming item. Even if the goods in the warehouse on the inventory list cannot be recognized by the warehousing antenna 6A at the timing of detecting the warehousing, the erroneous detection of "out of the warehouse" does not occur.
（ｅ）出庫と入庫の区別
　入庫検知タイミングで出庫するものを入庫用アンテナ６Ａで認識した場合、扉４１を閉じ入庫用アンテナ６Ａの受信停止後（給電停止後、アイドリング開始）に、出庫用アンテナ７Ａを受信可能（給電開始、アイドリング解除）とし、ユーザが出庫用アンテナ７ＡにＲＦＩＤタグを検知させる。そして、在庫管理装置１は出庫として在庫リストから削除し、在庫リストを更新する。入庫検知タイミングや保管位置により出庫したい食品を入庫用アンテナ６Ａで入庫として認識しても、ユーザが出庫した際に出庫用アンテナ７ＡにＲＦＩＤタグを検知させるので、在庫リストから出庫として、適切に更新できる。 (e) Distinguishing between leaving and entering When the entering antenna 6A recognizes an object to leave at the entering detection timing, after closing the door 41 and stopping reception of the entering antenna 6A (starting idling after power supply is stopped), the exiting antenna 7A is made receivable (feeding started, idling canceled), and the user causes the exit antenna 7A to detect the RFID tag. Then, the inventory management device 1 deletes it from the inventory list as delivery, and updates the inventory list. Even if the food to be taken out is recognized by the receiving antenna 6A as being received by the receiving detection timing or the storage position, the RFID tag is detected by the leaving antenna 7A when the user leaves the warehouse, so it is properly updated as being taken out from the inventory list. can.
　冷蔵庫から取り出した後、使用後に冷蔵庫に戻すものは、ユーザは出庫用アンテナ７Ａで出庫を認識させなくてもよい。
　ユーザが出庫の認識させていなくても、入庫を再認識したら入庫／在庫とすればよい。
　冷蔵庫から取り出した際に出庫を認識させず、取り出した後（ドレッシングのように）使い切ったため廃棄する際に出庫を認識させてもよい。
　在庫リストに有る場合は、在庫リストはそのままとする。在庫リストに無い場合は、新規入庫品として、在庫リストに追加する。ユーザの意図をもって、在庫リスト更新できるので、使い勝手が良いものを提供できる。 For items that are to be returned to the refrigerator after being used after being taken out of the refrigerator, the user does not need to recognize that the items have been taken out of the warehouse by the exit antenna 7A.
Even if the user does not recognize the delivery, if the receipt is re-recognized, it can be changed to warehousing/inventory.
It is also possible to not recognize the delivery when the product is taken out of the refrigerator, but to recognize the delivery when the product is discarded because it has been used up after being taken out (like a dressing).
If it is on the inventory list, keep the inventory list as it is. If it is not in the inventory list, it is added to the inventory list as a newly received item. Since the inventory list can be updated according to the user's intention, it is possible to provide a user-friendly one.
（ｆ）冷蔵庫に限らず貯蔵庫、図１に示したように、キッチン内の収納庫内の在庫検知でも同様の構成でよい。 (f) Not only refrigerators but also storages, as shown in FIG. 1, inventory detection in storages in kitchens may be performed in a similar configuration.
　図１０は、扉４１に複数のアンテナを設けた保管庫を説明する図である。図１０は、図２に比較して、扉４１に複数のアンテナを設け、出庫用アンテナ７１Ａと、発注用アンテナ７２Ａとした。出庫用アンテナ７１Ａは、自身の電波照射領域９内に存在するＲＦＩＤタグ５２を読み取ることができる。発注用アンテナ７２Ａは、自身の電波照射領域９内に存在するＲＦＩＤタグ５２を読み取ることができる。出庫用アンテナ７１Ａ、発注用アンテナ７２Ａは、ＲＦＩＤタグ５２をタッチ(０～５cm程度の距離)しないとタグを検知できないように、電波強度を小さくしている。在庫管理装置１は、扉４１が閉じられている場合、出庫用アンテナ７１Ａ、発注用アンテナ７２Ａから電波を出力するとともに、入庫用アンテナ６Ａから電波の出力を停止している。 FIG. 10 is a diagram for explaining a storage with a plurality of antennas provided on the door 41. FIG. In FIG. 10, a plurality of antennas are provided on the door 41 as compared with FIG. The exit antenna 71A can read the RFID tag 52 existing within the radio wave irradiation area 9 itself. The ordering antenna 72A can read the RFID tag 52 existing within the radio wave irradiation area 9 of itself. The radio wave intensity of the leaving antenna 71A and the ordering antenna 72A is reduced so that the RFID tag 52 cannot be detected unless the RFID tag 52 is touched (at a distance of about 0 to 5 cm). When the door 41 is closed, the inventory management apparatus 1 outputs radio waves from the leaving antenna 71A and the ordering antenna 72A, and stops outputting radio waves from the entering antenna 6A.
　図１１は、在庫管理装置１の他の構成等を説明する図である。図１１は、図１と比較して、主記憶装置１４に発注管理部２３が追加され、補助記憶装置１５に、発注情報３５が追加されている。 FIG. 11 is a diagram for explaining another configuration and the like of the inventory management device 1. As shown in FIG. 11, an order management unit 23 is added to the main storage device 14, and order information 35 is added to the auxiliary storage device 15, as compared with FIG.
　出庫の際、出庫用アンテナ７１ＡにＲＦＩＤタグ５２をタッチする（認識させる）と、在庫情報３３に基づく在庫リストから削除する。常備品でないもの、すぐに購入する必要の無いものの場合、あるいは使用した履歴等が分かればよいものであれば、この処理でよいことになる。 When the RFID tag 52 is touched (recognised) to the exit antenna 71A when exiting the warehouse, it is deleted from the inventory list based on the inventory information 33. This processing is sufficient for items that are not regular supplies, items that do not need to be purchased immediately, or items that only need to know the history of use.
　出庫の際、発注用アンテナ７２ＡにＲＦＩＤタグ５２をタッチする（認識させる）と、発注情報３５に基づく発注リストに登録するとともに、在庫リストから削除する。在庫リストには在庫がなくなった商品が登録されていないため、後日在庫が無くなりそうな商品を思い出しながら発注リストを作成するのは困難である。しかし、前述の方法を用いることで、後日在庫が無くなりそうな商品を思い出しながら発注リストを作成せずに済む。例えば、常備品、欠品を防ぎたい場合、発注リストから発注につなげると、手間をかけずに常備品を切らしたりしないようにすることができる。 When the RFID tag 52 is touched (recognized) by the order antenna 72A when leaving the warehouse, it is registered in the order list based on the order information 35 and deleted from the inventory list. Since out-of-stock products are not registered in the inventory list, it is difficult to create an order list while remembering products that are likely to run out of stock at a later date. However, by using the above-described method, it is possible to avoid creating an order list while remembering products that are likely to run out of stock at a later date. For example, if you want to prevent regular supplies and shortages, you can place an order from the order list to avoid running out of regular supplies.
　また、在庫リストを確認して発注リストを作成する際には、残量がどれくらいあったかを確認したりする必要がある場合もある。例えば、出先などで発注リストを作成したり、発注リストを確認する際には、自身で使いかけのドレッシングの残量確認をするのは困難で、発注リストに入れるべきであったかどうかを思いだしながら発注リストを作成するのは困難であった。ドレッシングのような使用後に残量があると冷蔵庫に戻す（使いかけを入庫する）常備品の場合、残量が少なくなった際に発注用アンテナ７２ＡにＲＦＩＤタグ５２をタッチすると発注リストに登録し、最終的に使い切った際にユーザがＲＦＩＤタグ５２を出庫用アンテナ７１Ａにタッチすると在庫リストから削除してもよい。また、冷蔵した状態で使用したいドレッシングなどの食品の場合、ユーザは常時１本以上のドレッシングを冷蔵庫の庫内に保存することもある。在庫リストでは１本のドレッシングを確認できるが、開栓した状態となれば、発注用アンテナ７２ＡにＲＦＩＤタグ５２をタッチする(認識させる）と、発注リストに登録でき、在庫のドレッシングを使い切る前に、発注リストを確認して補充することもできる。このように、端末装置８０（図１参照）のスマートフォン等で、在庫リストや発注リストの確認や設定を可能にしておくとよい。 Also, when checking the inventory list and creating an order list, it may be necessary to check how much is left. For example, when creating an order list on the go or checking the order list, it is difficult to check the remaining amount of half-used dressing by yourself, and while remembering whether it should have been put in the order list Creating an order list was difficult. In the case of regular items, such as dressings, which are returned to the refrigerator after use when there is a remaining amount (receiving half-used items), when the remaining amount is low, touching the RFID tag 52 to the ordering antenna 72A registers the item in the order list. When the RFID tag 52 is finally used up and the user touches the exit antenna 71A, the RFID tag 52 may be deleted from the inventory list. Moreover, in the case of foods such as dressings that the user wants to use in a refrigerated state, the user may always store one or more dressings in the refrigerator. One dressing can be confirmed in the inventory list, but when the bottle is opened, touching (recognising) the RFID tag 52 to the ordering antenna 72A allows it to be registered in the order list, before the dressing in the inventory is used up. , you can also check the order list and replenish. In this way, it is preferable to allow the confirmation and setting of the inventory list and the order list using the smartphone or the like of the terminal device 80 (see FIG. 1).
　図１２は、扉４１に複数のアンテナを設けた他の保管庫を説明する図である。図１２は、図１０と比較して、扉４１に複数の発注用タッチアンテナを設けた場合である。すなわち、観音開き式の扉４１に、出庫用アンテナ７１Ａと、発注用アンテナ７２Ａ、発注用アンテナ７３Ａを設けた。 FIG. 12 is a diagram for explaining another storage with a door 41 provided with a plurality of antennas. FIG. 12 shows a case in which a plurality of touch antennas for ordering are provided on the door 41 in comparison with FIG. That is, the door 41 of the double-opening type is provided with an unloading antenna 71A, an ordering antenna 72A, and an ordering antenna 73A.
　例えば冷蔵庫の扉４１に、冷蔵庫用と、キッチン内の収納庫内の発注用タッチアンテナを設ける。冷蔵庫の在庫管理は、前述したように出庫用アンテナ７１Ａと、発注用アンテナ７２Ａを用いて入庫/出庫/発注を管理する。他方、発注用アンテナ７３Ａを用いて、収容庫内のモノを、在庫品として発注したい場合に利用する。具体的には、在庫品のラップを使用するにあたり、補充する際に発注するに利用するとよい。 For example, the door 41 of the refrigerator is provided with touch antennas for the refrigerator and for ordering in the cabinet in the kitchen. In the inventory management of the refrigerator, as described above, warehousing/leaving/ordering is managed using the warehousing antenna 71A and the ordering antenna 72A. On the other hand, the ordering antenna 73A is used to place an order for items in the warehouse as stock items. Specifically, when using the stock wrap, it is good to use it to place an order for replenishment.
　在庫管理装置１は、出庫品の出庫リストから発注リストの作成、又は作成した発注リストから発注可能としてもよい。
　在庫情報３３に基づく在庫リストに登録される食品や食材は、在庫リストで常備品登録（フラグを立てる）可能とし、出庫の記録で発注リストに自動的に登録可能である。
　例えば１週間の出庫リストや、任意に設定した（例えば１０個）最新の出庫を保存した出庫リストから、ユーザが発注リストに移動可能である。
　在庫リストから削除したものを買い物リスト、自動発注リストへの追加／追加のレコメンドを端末装置８０に通知してもよい。
　発注リストでＥＣ（電子商取引）等へ発注したら、発注リストから発注品は削除する。発注リスト（買い物リスト）にあった食品／食材が、ＲＦＩＤタグ／ＱＲコードのＥＰＣコード（シリアルナンバー（Ｓ／Ｎ）付）で新規Ｓ／Ｎの食品／食材の入庫を認識した場合、発注リストから削除可能とする。
　特定のＥＣサイトや、発注リストの合計金額が安いＥＣサイト順に発注先をリコメンド可能である。これにより、常備品等の在庫切れ防止、買い物リスト作成の手間軽減、自動発注による買い物の手間／負担軽減ができる。
　なお、スマートフォン等の端末装置８０に削除されたものを通知、あるいは最新の在庫リスト（入庫、出庫を更新）を通知するとよい。 The inventory management device 1 may create an order list from the delivery list of delivered items, or place an order from the created order list.
Foods and foodstuffs registered in the inventory list based on the inventory information 33 can be registered (flagged) as regular items in the inventory list, and can be automatically registered in the order list by recording delivery.
For example, the user can move to the order list from a delivery list for one week or an arbitrarily set (for example, 10) latest delivery list that saves the latest delivery.
The terminal device 80 may be notified of additions to the shopping list and the automatic order list/recommendations for additions to items deleted from the inventory list.
After placing an order to EC (Electronic Commerce) etc. from the order list, the ordered item is deleted from the order list. If the food/ingredients on the order list (shopping list) recognizes the receipt of food/ingredients with a new S/N by the EPC code of the RFID tag/QR code (with serial number (S/N)), the order list can be deleted from
Order destinations can be recommended in order of a specific EC site or an EC site with the lowest total price on the order list. As a result, it is possible to prevent out-of-stock items such as regular supplies, reduce the trouble of creating a shopping list, and reduce the trouble/burden of shopping through automatic ordering.
In addition, it is preferable to notify the terminal device 80 such as a smartphone of the deleted items or the latest inventory list (renewal of incoming and outgoing).
　次に、端末装置８０と在庫管理装置１との関係に説明する。
　本実施形態では、スマートフォン等の端末装置８０（図１参照）のカメラにより、ＱＲコード／ＪＡＮコード等の２次元バーコードを読込み、在庫リストに追加可能である。
（ａ）入庫検知
（ａ１）食品５１にはＲＦＩＤタグ５２を備えない場合、ＱＲコード／ＪＡＮコード等の２次元バーコードを端末装置８０のカメラから読込み、在庫リストに加える。電波認識のＲＦＩＤと画像認識のＱＲコード／ＪＡＮコードが混在した在庫管理システムにおいて、ＲＦＩＤのＲＷアンテナによる定時的な在庫確認を必要としないので、ＲＦＩＤタグ５２を備えないものに対してＲＦＩＤタグを検知できないため出庫と誤検知することがない。入庫時以外の在庫リストの更新は、出庫時のＲＦＩＤタグ５２は入庫／出庫（廃棄）の検知やリストの操作タイミングで行えばよく、頻繁な在庫リストの更新を行う必要がない。 Next, the relationship between the terminal device 80 and the inventory management device 1 will be described.
In this embodiment, the camera of the terminal device 80 (see FIG. 1) such as a smart phone can read a two-dimensional barcode such as a QR code/JAN code and add it to the inventory list.
(a) Warehousing detection (a1) When the food 51 does not have the RFID tag 52, a two-dimensional barcode such as a QR code/JAN code is read from the camera of the terminal device 80 and added to the inventory list. In an inventory management system in which radio wave recognition RFID and image recognition QR code/JAN code are mixed, periodic inventory confirmation by RFID RW antenna is not required. Since it cannot be detected, it will not be mistakenly detected as leaving the warehouse. Updating of the inventory list other than at the time of warehousing can be performed at the timing of detecting warehousing/leaving (disposal) of the RFID tag 52 at the time of warehousing or operation of the list, and there is no need to update the inventory list frequently.
（ａ２）シリアルナンバー（Ｓ／Ｎ）を備えない（製品等は判別可能であるが、ＲＦＩＤのコード全ては備えないＥＰＣコードに準拠しないもの）をカメラで複数個読み込んだ場合は、読み込んだ枚数と同じ個数を入庫したものとすれば、ＲＦＩＤと同様に個数管理も可能である。
　また、シリアルナンバー（Ｓ／Ｎ）を備えない（上記同様ＥＰＣコードも準拠しないもの）をカメラで読み込んだ場合、在庫リスト上で個数を入力できるようにすればよい。
　個数を数値で入力してもよいし、「＋」「－」や、「＜」「＞」等の記号で在庫リスト個数を修正してもよい。
　また、シリアルナンバー（Ｓ／Ｎ）を備えない（上記同様ＥＰＣコードも準拠しないもの）をカメラで読み込んだ場合、すでに在庫リストに表示されている物品については、在庫リスト上で個数を数値で入力してもよいし、「＋」「－」や、「＜」「＞」等の記号で在庫リスト個数を修正してもよい。 (a2) If a camera does not have a serial number (S/N) (the product can be identified, but it does not have all the RFID codes and does not conform to the EPC code), the number of copies read Assuming that the same number of items is stocked, it is possible to manage the number of items in the same manner as with RFID.
In addition, when a camera does not have a serial number (S/N) (the EPC code does not conform to the above), the quantity may be input on the inventory list.
The number may be entered as a numerical value, or the stock list number may be corrected with symbols such as "+", "-", "<", and ">".
Also, if the camera does not have a serial number (S/N) (the same as the above, it does not conform to the EPC code), for items that are already displayed on the inventory list, enter the number of items on the inventory list Alternatively, the stock list quantity may be corrected with symbols such as "+", "-", "<", and ">".
（ａ３）ＲＦＩＤ及びＲＦＩＤと同様のコードを記載したＱＲコードも印刷されたタグ（ハイブリッドタグ）の場合、ＲＦＩＤタグが断線した場合でも、ＱＲコードを端末装置８０のカメラから読込むことで、在庫管理が可能である。
（ｂ）在庫リストの表示インターフェイスから手動／音声認識で削除
　端末装置８０がスマートフォン、スマートスピーカ(音声認識デバイス)である場合、手動／音声認識が可能である。すなわち、出庫用アンテナ７Ａ以外での出庫検知（入庫はＲＦＩＤタグ５２の検知、あるいはＱＲコード／ＪＡＮコードの画像検知）ができる。
（ｂ１）在庫リストに存在するものは在庫リストから手動で削除してもよい。なお、音声認識を備えたものでは、音声で在庫リストから削除を指示してもよい。例えば、スマートフォンで在庫リストを確認可能である。
（ｂ２）シリアルナンバー（Ｓ／Ｎ）を備えない（ＥＰＣコードも準拠しないもの）を複数個出庫した場合は、出庫した個数を在庫リストから削除すれば同様に個数管理も可能である。なお、在庫リスト上で出庫した個数を数値で入力してもよいし、「＋」「－」や、「＜」「＞」等の記号で増減させて在庫リストを修正してもよい。 (a3) In the case of a tag (hybrid tag) printed with an RFID and a QR code with a code similar to the RFID, even if the RFID tag is broken, the QR code can be read from the camera of the terminal device 80 and the inventory can be checked. Management is possible.
(b) Manual/Voice Recognition Deletion from Inventory List Display Interface When the terminal device 80 is a smart phone or a smart speaker (voice recognition device), manual/voice recognition is possible. In other words, it is possible to detect leaving the warehouse (in the case of entering, the detection of the RFID tag 52 or the image detection of the QR code/JAN code) by means other than the exit antenna 7A.
(b1) Items present in the inventory list may be manually deleted from the inventory list. It should be noted that in the case of a device equipped with voice recognition, deletion from the inventory list may be instructed by voice. For example, you can check the inventory list on your smartphone.
(b2) If a plurality of items without a serial number (S/N) (that do not comply with the EPC code) are shipped, the number of items can be similarly managed by deleting the number of items that have been shipped from the inventory list. In addition, the number of items shipped from the inventory list may be entered as a numerical value, or the inventory list may be corrected by increasing or decreasing with symbols such as "+", "-", "<", and ">".
　端末装置８０と在庫管理装置１との関係を説明したが、保管庫４に表示装置等を設けて、端末装置８０と同様の機能を持たせてもよい。 Although the relationship between the terminal device 80 and the inventory management device 1 has been described, the storage 4 may be provided with a display device or the like to have the same functions as the terminal device 80.
　以上説明した本実施形態の在庫管理システムは、次の特徴を有する。
（１）保管庫４内に収容する物品に付された無線タグ（例えば、ＲＦＩＤタグ５２）と通信ができるように設けられた庫内の入庫用アンテナ６Ａと、出庫のときに無線タグと通信ができるように設けられた庫外の出庫用アンテナ７Ａと、入庫用アンテナ６Ａ又は出庫用アンテナ７Ａを介して無線タグと通信を行って物品情報を取得する物品情報取得部（例えば、タグリーダライタ装置６，７）と、取得した物品情報に基づき、保管庫４の物品を管理する在庫管理装置１とを備え、在庫管理装置１は、保管庫４の扉が開かれている場合、入庫用アンテナ６Ａから電波を出力し、扉が閉じられている場合、出庫用アンテナ７Ａから電波を出力する。これにより、保管庫内の在庫管理を適切に行うことができる。 The inventory management system of this embodiment described above has the following features.
(1) A warehousing antenna 6A provided so as to be able to communicate with a wireless tag (for example, an RFID tag 52) attached to an article stored in the storage 4, and a wireless tag when leaving the storage. An article information acquisition unit (for example, a tag reader/writer device 6, 7), and an inventory management device 1 that manages the articles in the storage 4 based on the acquired article information. A radio wave is output from 6A, and when the door is closed, a radio wave is output from the exit antenna 7A. As a result, inventory management in the storage can be appropriately performed.
（２）在庫管理装置１は、扉が開かれている場合、入庫用アンテナ６Ａから電波を出力するとともに、出庫用アンテナ７Ａから電波の出力を停止し、扉が閉じられている場合、出庫用アンテナ７Ａから電波を出力するとともに、入庫用アンテナ６Ａから電波の出力を停止するとよい。これにより、出庫時の誤検知を防止することができる。 (2) When the door is open, the inventory management device 1 outputs radio waves from the receiving antenna 6A and stops outputting radio waves from the leaving antenna 7A. It is preferable to output radio waves from the antenna 7A and stop outputting radio waves from the warehousing antenna 6A. As a result, it is possible to prevent erroneous detection at the time of leaving the garage.
（３）無線タグと通信する際の入庫用アンテナ６Ａの電波強度は、無線タグと通信する際の出庫用アンテナ７Ａの電波強度より大きい。これにより、出庫時の出庫誤判定を防止する。 (3) The radio wave intensity of the warehousing antenna 6A when communicating with the wireless tag is greater than the radio wave intensity of the leaving antenna 7A when communicating with the wireless tag. This prevents erroneous determination of delivery at the time of delivery.
（４）入庫用アンテナ６Ａの個数は、出庫用アンテナ７Ａの個数以上であるとよい。入庫用に複数のアンテナを設けているので、入庫の際１つのアンテナでＲＦＩＤタグを認識できなくても、他のアンテナでＲＦＩＤタグを認識できれば入庫とすればよく、入庫検知を精度よくできる。出庫用アンテナ７Ａは、扉を閉じた際に、出庫時、ユーザがタグ付きの出庫品を出庫用アンテナ７Ａにタッチしやすい位置にアンテナを少なくとも１つ配置し、出庫時の出庫誤判定を防止する。 (4) The number of warehousing antennas 6A is preferably equal to or greater than the number of warehousing antennas 7A. Since a plurality of antennas are provided for warehousing, even if the RFID tag cannot be recognized by one antenna at the time of warehousing, if the RFID tag can be recognized by other antennas, the warehousing can be performed and the warehousing can be detected with high accuracy. When the door is closed, at least one of the antennas 7A is placed at a position where the user can easily touch the tag-attached goods to the exit antenna 7A, thereby preventing erroneous exit determination. do.
（５）保管庫４は、複数の貯蔵室を有し、保管庫４の各貯蔵室内に、入庫用アンテナ６Ａが設けられ、保管庫４の外面に、出庫用アンテナ７Ａが設けられている。 (5) The storage 4 has a plurality of storage rooms, each storage room of the storage 4 is provided with an incoming antenna 6A, and the outer surface of the storage 4 is provided with an outgoing antenna 7A.
（６）物品には、２次元コードが付されており、在庫管理装置１は、２次元コードの情報を受信した場合、在庫管理装置１が保持する在庫リストに、２次元コードの情報に基づく物品を追加することができる。 (6) A two-dimensional code is attached to the article, and when the inventory management device 1 receives the information of the two-dimensional code, the inventory list held by the inventory management device 1 is based on the information of the two-dimensional code. Items can be added.
（７）在庫管理装置１は、端末装置８０と通信可能であり、在庫管理装置１は、端末装置８０から物品の削除要求をもとに、在庫リストから物品の情報を削除することができる。 (7) The inventory management device 1 can communicate with the terminal device 80, and the inventory management device 1 can delete the information of the item from the inventory list based on the deletion request of the item from the terminal device 80.
（８）在庫管理装置１は、出庫品の出庫リストから発注リストを作成することができる。 (8) The inventory management device 1 can create an order list from the delivery list of delivered items.
（９）出庫用アンテナ７Ａは、通信距離が５ｃｍ以下の近距離用アンテナである。これにより、これにより、出庫時の出庫誤判定を防止する。 (9) The exit antenna 7A is a short-range antenna with a communication distance of 5 cm or less. As a result, erroneous determination of delivery at the time of delivery is prevented.
（１０）在庫管理装置１は、扉が閉じられたのち、入庫用アンテナ６Ａから電波を設定時間継続して出力することができる。設定時間とは、図８の欄６６ｂで設定される設定時間である。また、設定時間は、図９のステップＳ２０６における入庫用アンテナ６Ａの設定時間に対応する。 (10) After the door is closed, the inventory management device 1 can continue to output radio waves from the warehousing antenna 6A for a set period of time. The set time is the set time set in the column 66b of FIG. Also, the set time corresponds to the set time of the warehousing antenna 6A in step S206 of FIG.
（１１）在庫管理システム１００は、さらに、保管庫４外に配置され、発注の物品の無線タグを読み取る発注用アンテナを有する（図１０、図１１、図１２参照）。 (11) The inventory management system 100 further has an ordering antenna that is arranged outside the storage 4 and reads the radio tag of the ordered article (see FIGS. 10, 11 and 12).
（１２）物品を保管する保管庫４であって、保管庫４内に収容する物品に付された無線タグ（例えば、ＲＦＩＤタグ５２）と通信ができるように設けられた庫内の入庫用アンテナ６Ａと、出庫のときに無線タグと通信ができるように設けられた庫外の出庫用アンテナ７Ａと、入庫用アンテナ６Ａ又は出庫用アンテナ７Ａを介して無線タグと通信を行って物品情報を取得する物品情報取得部と、取得した物品情報に基づき、保管庫４の物品を管理する在庫管理装置１とを備え、在庫管理装置１は、保管庫４の扉が開かれている場合、入庫用アンテナ６Ａから電波を出力し、扉が閉じられている場合、出庫用アンテナ７Ａから電波を出力する。これにより、保管庫内の在庫管理を適切に行うことができる。 (12) A warehouse 4 for storing articles, and an antenna for entering the warehouse provided so as to be able to communicate with a wireless tag (for example, an RFID tag 52) attached to the articles stored in the warehouse 4. 6A, an exit antenna 7A provided outside the warehouse so as to be able to communicate with the wireless tag when exiting the warehouse, and the entry antenna 6A or the exit antenna 7A to communicate with the wireless tag to acquire article information. and an inventory management device 1 for managing the items in the storage 4 based on the acquired product information. A radio wave is output from the antenna 6A, and when the door is closed, a radio wave is output from the exit antenna 7A. As a result, inventory management in the storage can be appropriately performed.
　なお、本発明は前記した実施例に限定されるものではなく、様々な変形例が含まれる。例えば、前記した実施例は、本発明を分かり易く説明するために詳細に説明したものであり、必ずしも説明したすべての構成を備えるものに限定されるものではない。また、ある実施例の構成の一部を他の実施例の構成に置き換えることが可能であり、また、ある実施例の構成に他の実施例の構成を加えることも可能である。また、各実施例の構成の一部について、他の構成の追加・削除・置換をすることが可能である。 It should be noted that the present invention is not limited to the above-described embodiments, and includes various modifications. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the described configurations. In addition, it is possible to replace part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. Moreover, it is possible to add, delete, or replace a part of the configuration of each embodiment with another configuration.
　また、前記の各構成、機能、処理部、処理手段等は、それらの一部又は全部を、例えば集積回路で設計する等によりハードウエアで実現してもよい。また、前記の各構成、機能等は、プロセッサがそれぞれの機能を実現するプログラムを解釈し、実行することによりソフトウエアで実現してもよい。各機能を実現するプログラム、テーブル、ファイル等の情報は、メモリや、ハードディスク、ＳＳＤ（Solid State Drive）等の記録装置、又は、ＩＣカード、ＳＤカード、ＤＶＤ等の記録媒体に置くことができる。
　また、制御線や情報線は説明上必要と考えられるものを示しており、製品上必ずしもすべての制御線や情報線を示しているとは限らない。実際には殆どすべての構成が相互に接続されていると考えてもよい。在庫管理装置１の各種情報は、クラウド上に存在していてもよい。 Further, each of the configurations, functions, processing units, processing means, etc. described above may be realized by hardware, for example, by designing a part or all of them using an integrated circuit. Moreover, each of the above configurations, functions, etc. may be realized by software by a processor interpreting and executing a program for realizing each function. Information such as programs, tables, and files that implement each function can be stored in recording devices such as memories, hard disks, SSDs (Solid State Drives), or recording media such as IC cards, SD cards, and DVDs.
In addition, the control lines and information lines indicate those considered necessary for explanation, and not all control lines and information lines are necessarily indicated on the product. In fact, it may be considered that almost all configurations are interconnected. Various information of the inventory management device 1 may exist on the cloud.
　１　　　在庫管理装置
　２　　　ネットワーク
　３　　　キッチン
　４　　　保管庫
　６　　　タグリーダライタ装置（物品情報取得部）
　６Ａ　　入庫用アンテナ
　７　　　タグリーダライタ装置（物品情報取得部）
　７Ａ　　出庫用アンテナ
　８，９　電波照射領域
　１１　　中央制御装置
　１２　　入力装置
　１３　　出力装置
　１４　　主記憶装置
　１５　　補助記憶装置
　１６　　通信装置
　２１　　入出力処理部
　２２　　在庫管理部
　２３　　発注管理部
　３１　　開閉情報
　３２　　読取情報
　３３　　在庫情報
　３４　　発注情報
　４１　　扉
　４２，４４　　引き出し
　４３　　物品保持手段（ドアポケット）
　５１　　食品
　５２　　ＲＦＩＤタグ（無線タグ）
　６１　　アンテナ・センサ設定画面
　８０　　端末装置
　１００　　在庫管理システム 1 Inventory Control Device 2 Network 3 Kitchen 4 Storage 6 Tag Reader/Writer Device (Goods Information Acquisition Unit)
6A Antenna for warehousing 7 Tag reader/writer device (item information acquisition unit)
7A Departure antenna 8, 9 Radio wave irradiation area 11 Central control device 12 Input device 13 Output device 14 Main storage device 15 Auxiliary storage device 16 Communication device 21 Input/output processing unit 22 Inventory management unit 23 Order management unit 31 Opening/closing information 32 Reading information 33 inventory information 34 order information 41 door 42, 44 drawer 43 article holding means (door pocket)
51 Food 52 RFID tag (wireless tag)
61 Antenna sensor setting screen 80 Terminal device 100 Inventory management system

Claims (12)

  1. 　保管庫内に収容する物品に付された無線タグと通信ができるように設けられた庫内の入庫用アンテナと、
    　出庫のときに前記無線タグと通信ができるように設けられた庫外の出庫用アンテナと、
    　前記入庫用アンテナ又は前記出庫用アンテナを介して前記無線タグと通信を行って物品情報を取得する物品情報取得部と、
    　前記取得した物品情報に基づき、前記保管庫の物品を管理する在庫管理装置とを備え、
    　前記在庫管理装置は、前記保管庫の扉が開かれている場合、前記入庫用アンテナから電波を出力し、前記扉が閉じられている場合、前記出庫用アンテナから電波を出力する
    　ことを特徴とする在庫管理システム。     An antenna for entering the warehouse provided so as to be able to communicate with a wireless tag attached to an article stored in the warehouse;
    An antenna for exiting the warehouse provided outside the warehouse so as to be able to communicate with the wireless tag at the time of exiting the warehouse;
    an article information acquisition unit that acquires article information by communicating with the wireless tag via the warehousing antenna or the warehousing antenna;
    an inventory management device that manages the items in the storage based on the acquired item information;
    The inventory management device outputs radio waves from the receiving antenna when the door of the storage is open, and outputs radio waves from the leaving antenna when the door is closed. inventory management system.
  2. 　前記在庫管理装置は、
    　前記扉が開かれている場合、前記入庫用アンテナから電波を出力するとともに、前記出庫用アンテナから電波の出力を停止し、
    　前記扉が閉じられている場合、前記出庫用アンテナから電波を出力するとともに、前記入庫用アンテナから電波の出力を停止する
    　ことを特徴とする請求項１に記載の在庫管理システム。     The inventory management device
    when the door is open, outputting radio waves from the entering antenna and stopping output of radio waves from the exiting antenna;
    2. The inventory management system according to claim 1, wherein when the door is closed, the output of radio waves is output from the antenna for leaving the warehouse, and the output of radio waves from the antenna for entering the warehouse is stopped.
  3. 　前記無線タグと通信する際の前記入庫用アンテナの電波強度は、前記無線タグと通信する際の前記出庫用アンテナの電波強度より大きい
    　ことを特徴とする請求項１に記載の在庫管理システム。     2. The inventory management system according to claim 1, wherein the radio wave intensity of said warehousing antenna when communicating with said wireless tag is greater than the radio wave intensity of said warehousing antenna when communicating with said wireless tag.
  4. 　前記入庫用アンテナの個数は、前記出庫用アンテナの個数以上であることを特徴とする請求項１に記載の在庫管理システム。 The inventory management system according to claim 1, wherein the number of said warehousing antennas is greater than or equal to the number of said warehousing antennas.
  5. 　前記保管庫は、複数の貯蔵室を有し、
    　前記保管庫の各貯蔵室内に、前記入庫用アンテナが設けられ、
    　前記保管庫の外面に、前記出庫用アンテナが設けられている
    　ことを特徴とする請求項１に記載の在庫管理システム。     The storage has a plurality of storage rooms,
    The receiving antenna is provided in each storage room of the storage,
    The inventory management system according to claim 1, wherein the exit antenna is provided on the outer surface of the storage.
  6. 　前記物品には、２次元コードが付されており、
    　前記在庫管理装置は、前記２次元コードの情報を受信した場合、前記在庫管理装置が保持する在庫リストに、前記２次元コードの情報に基づく物品を追加する
    　ことを特徴とする請求項１に記載の在庫管理システム。     A two-dimensional code is attached to the article,
    2. The inventory management device according to claim 1, wherein, when receiving the information of the two-dimensional code, the inventory management device adds the article based on the information of the two-dimensional code to an inventory list held by the inventory management device. inventory management system.
  7. 　前記在庫管理装置は、端末装置と通信可能であり、
    　前記在庫管理装置は、前記端末装置から前記物品の削除要求をもとに、前記在庫リストから前記物品の情報を削除する
    　ことを特徴とする請求項６に記載の在庫管理システム。     The inventory management device is capable of communicating with a terminal device,
    7. The inventory management system according to claim 6, wherein the inventory management device deletes the information on the item from the inventory list based on a deletion request for the item from the terminal device.
  8. 　前記在庫管理装置は、出庫品の出庫リストから発注リストを作成することを特徴とする請求項１に記載の在庫管理システム。 The inventory management system according to claim 1, wherein the inventory management device creates an order list from the delivery list of the delivered items.
  9. 　前記出庫用アンテナは、通信距離が５ｃｍ以下の近距離用アンテナである
    　ことを特徴とする請求項１に記載の在庫管理システム。     The inventory management system according to claim 1, wherein the exit antenna is a short-range antenna with a communication distance of 5 cm or less.
  10. 　前記在庫管理装置は、前記扉が閉じられたのち、前記入庫用アンテナから電波を設定時間継続して出力する
    　ことを特徴とする請求項１に記載の在庫管理システム。     2. The inventory management system according to claim 1, wherein said inventory management device continues to output radio waves from said warehousing antenna for a set period of time after said door is closed.
  11. 　前記在庫管理システムは、さらに、前記保管庫外に配置され、発注の物品の無線タグを読み取る発注用アンテナを有する
    　ことを特徴とする請求項１から請求項１０のいずれか１項に記載の在庫管理システム。     11. The inventory according to any one of claims 1 to 10, wherein the inventory management system further comprises an ordering antenna arranged outside the storage and reading a wireless tag of an ordered item. management system.
  12. 　物品を保管する保管庫であって、
    　前記保管庫内に収容する物品に付された無線タグと通信ができるように設けられた庫内の入庫用アンテナと、
    　出庫のときに前記無線タグと通信ができるように設けられた庫外の出庫用アンテナと、
    　前記入庫用アンテナ又は前記出庫用アンテナを介して前記無線タグと通信を行って物品情報を取得する物品情報取得部と、
    　前記取得した物品情報に基づき、前記保管庫の物品を管理する在庫管理装置とを備え、
    　前記在庫管理装置は、前記保管庫の扉が開かれている場合、前記入庫用アンテナから電波を出力し、前記扉が閉じられている場合、前記出庫用アンテナから電波を出力する
    　ことを特徴とする保管庫。     A vault for storing goods,
    An antenna for entering the warehouse provided so as to be able to communicate with a wireless tag attached to an article stored in the warehouse;
    An antenna for exiting the warehouse provided outside the warehouse so as to be able to communicate with the wireless tag at the time of exiting the warehouse;
    an article information acquisition unit that acquires article information by communicating with the wireless tag via the warehousing antenna or the warehousing antenna;
    an inventory management device that manages the items in the storage based on the acquired item information;
    The inventory management device outputs radio waves from the receiving antenna when the door of the storage is open, and outputs radio waves from the leaving antenna when the door is closed. vault to store.
PCT/JP2022/002770 2021-09-24 2022-01-26 Inventory control system and storage WO2023047614A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001317862A (en) * 2000-02-28 2001-11-16 Dainippon Printing Co Ltd Automatic refrigerating system for food and refrigerator
JP2005221177A (en) * 2004-02-06 2005-08-18 Toshiba Corp Household electrical appliance
JP2007102396A (en) * 2005-10-03 2007-04-19 Tosho Inc Medicine information management device
JP2007137553A (en) * 2005-11-16 2007-06-07 Matsushita Electric Ind Co Ltd Article storage device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001317862A (en) * 2000-02-28 2001-11-16 Dainippon Printing Co Ltd Automatic refrigerating system for food and refrigerator
JP2005221177A (en) * 2004-02-06 2005-08-18 Toshiba Corp Household electrical appliance
JP2007102396A (en) * 2005-10-03 2007-04-19 Tosho Inc Medicine information management device
JP2007137553A (en) * 2005-11-16 2007-06-07 Matsushita Electric Ind Co Ltd Article storage device

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