Detection system

The wireless detection system with a loop antenna RFID tag addresses the challenges of tracking container opening dates by automatically recording and notifying the opening date, enhancing workability and reducing costs.

JP2025056424AActive Publication Date: 2025-04-08ISUZU MOTORS LTD
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Patent Information

Application Number
JP2023165887
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-09-27
Publication Date
2025-04-08
Estimated Expiration
2043-09-27

AI Technical Summary

Technical Problem

Existing methods for tracking the opening date of containers, such as making notes by hand, are prone to errors and are costly when implementing advanced inspection systems for inexpensive foods.

Method used

A wireless detection system featuring a loop antenna RFID tag placed on the container's opening line, coupled with a detection device that reads the tag's information, detects container opening, and stores the opening date.

Benefits of technology

Automatically records and notifies the opening date, improving workability by eliminating the need for manual notes and reducing costs associated with advanced inspection systems.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a detection system capable of improving workability after opening after a container is opened.SOLUTION: The detection system includes a wireless tag which has a loop antenna part and in which the loop antenna part is arranged on an opening cutoff line displayed on the container and a detection device. The detection device includes a device side antenna which transmits and receives signals to and from a loop antenna by wireless communication, a reading part which can read the identification information of the wireless tag through the device side antenna, a detection part which detects that the container is opened, when the identification information cannot be read, and a storage part which stores an opening date when a bag container is opened, when it is detected that the container is opened.SELECTED DRAWING: Figure 1
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Description

[Technical field]

[0001] The present disclosure relates to detection systems. [Background technology]

[0002] For example, with food or medicine, there is a problem that opening the container causes air to enter and the product to begin to deteriorate. To deal with this problem, people take steps such as writing down the date the container was opened.

[0003] Patent document 1 discloses an inspection system having a conductive mesh configured to cover a box and a wireless tag coupled to the conductive mesh, the wireless tag configured to report a break in the conductive mesh or the opening of the box by emitting a predetermined signal. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Special Publication No. 20008-502559 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the task of taking a note of the opening date is performed by an employee after the container is opened, which can be time-consuming and can lead to problems such as forgetting to take a note of the opening date.

[0006] Furthermore, there is a problem in that the cost is high when the inspection system described in Patent Document 1 is individually installed, particularly as an inspection system for inexpensive foods and the like.

[0007] An object of the present disclosure is to provide a detection system that can improve operability after a container has been opened. [Means for solving the problem]

[0008] In order to achieve the above object, the detection system of the present disclosure comprises: a wireless tag having a loop antenna portion, the loop antenna portion being arranged on a cut line for opening the container; A detection device; Equipped with The detection device includes: an apparatus-side antenna that transmits and receives signals to and from the loop antenna via wireless communication; a reader capable of reading the identification information of the wireless tag via the device-side antenna; a detection unit that detects that the container has been opened when the identification information cannot be read; a storage unit that stores an opening date when the container is opened if the container is detected to have been opened; Equipped with. Effect of the Invention

[0009] According to the present disclosure, it is possible to improve the workability after the container is opened. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a functional block diagram illustrating functions of a detection system according to an embodiment of the present disclosure. [Figure 2A] FIG. 2A is a diagram showing an example of an RFID tag attached to a bag container according to the embodiment of the present disclosure. [Figure 2B] FIG. 2B is a diagram showing another example of an RFID tag attached to a bag container according to the embodiment of the present disclosure. [Diagram 3] FIG. 3 is a diagram showing the relationship between the detection system and terminal devices in a modification of this embodiment. [Figure 4] FIG. 4 is a functional block diagram showing functions of a detection system according to a modification of the present embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. 1 is a functional block diagram showing functions of a detection system according to an embodiment of the present disclosure. Note that the container in this embodiment will be described as a bag container. The detection system 100 shown in FIG. 1 includes an RFID tag 200 and an opening detection device 400.

[0012] (RFID tag 200) The RFID tag 200 is a sticker-type RFID tag that can be attached to the bag container 1. The RFID tag 200 comprises a label body (not shown) and an RFID circuit element 300. The label body is a long label with the longitudinal direction as the long side. The label body has a central portion located at the center in the longitudinal direction, and both end portions located on either side of the central portion in the longitudinal direction. An adhesive portion (e.g., an adhesive sticker) is disposed on the back side of the label body. In other words, the label body (RFID tag 200) is attached to the bag container 1 by the adhesive portion.

[0013] (RFID circuit element 300) The RFID circuit element 300 has a loop antenna section 310, an IC circuit section 320, a capacity hat section 330, and a meander line antenna section 340 (see FIGS. 2A and 2B).

[0014] (Opening detection device 400) The opening detection device 400 has an antenna 410, a reader 420 (corresponding to the "reading unit" of this disclosure), a detection unit 430, a storage unit 440, and a notification unit 450. The opening detection device 400 also has a control unit (not shown) that comprehensively controls the entire device.

[0015] The loop antenna unit 310 is disposed in the center of the label body. The loop antenna unit 310 transmits and receives signals to and from the antenna 410 in a non-contact manner. This allows the reader 420 to read predetermined information from the memory unit of the IC circuit unit 320 via the loop antenna unit 310.

[0016] The IC circuit section 320 is disposed in the center of the label body. The IC circuit section 320 has a rectifier section (not shown) that rectifies the carrier wave received by the loop antenna section 310, a memory section (not shown) that stores a predetermined information signal received by the loop antenna section 310, and a control section (not shown) that controls the operation of the RFID circuit element 300.

[0017] The capacity hat portion 330 is disposed on each of both ends of the label body. The capacity hat portion 330 accumulates the energy of the carrier wave rectified by the rectifier portion so as to use it as a driving power source for the RFID circuit element 300.

[0018] The meander line antenna portion 340 is disposed at each of both ends of the label body. The meander line antenna portion 340 has one end and the other end, with the loop antenna portion 310 connected to one end and the capacity hat portion 330 connected to the other end.

[0019] FIG. 2A is a diagram showing an example of an RFID tag attached to a bag container according to an embodiment of the present disclosure. A tear line 2 for opening is displayed on the bag container 1 shown in FIG. 2A. Also, the RFID tag 200 shown in FIG. 2A is arranged on the tear line 2. Specifically, the RFID tag 200 is attached to the bag container 1 so that the loop antenna unit 310 arranged in the center of the label body is arranged on the tear line 2. Therefore, when the bag container 1 is cut along the tear line 2 by scissors 3 when opening the bag container 1, the loop antenna unit 310 is cut at the same time. This causes the RFID tag 200 to malfunction, making it impossible for the reader 420 to read the identification information of the RFID tag, and making it impossible for the detection unit 430 to detect the identification information of the RFID tag.

[0020] FIG. 2B is a diagram showing another example of an RFID tag attached to a bag container according to an embodiment of the present disclosure. A tear line 2 for opening is displayed on the bag container 1 shown in FIG. 2B. The RFID tag 200 shown in FIG. 2B is attached to the bag container 1 so that the loop antenna section 310 arranged in the center of the label body, and the capacity hat section 330 and the meander line antenna section 340 arranged at both ends of the label body are arranged on the tear line 2. Therefore, when the bag container 1 is cut along the tear line 2 by scissors 3 when opening the bag container 1, the loop antenna section 310, the capacity hat section 330 and the meander line antenna section 340 are simultaneously cut. This causes the RFID tag 200 to malfunction, making it impossible for the reader 420 to read the identification information of the RFID tag, and making it impossible for the detection section 430 to detect the identification information of the RFID tag.

[0021] The detection unit 430 detects the identification information (tag ID shown in FIG. 1) of the RFID tag read by the reader. If the detection unit 430 cannot detect the tag ID, it detects that the bag container 1 has been opened. If the opening of the bag container 1 is detected, the tag ID, the opening flag, and the opening date are stored in the memory unit 440.

[0022] Notification unit 450 notifies the user of the tag ID and the opening date read from storage unit 440. Specifically, notification unit 450 is a display unit that displays the tag ID and the opening date as character data. Note that notification unit 450 may notify the user of the opening date on the opening date, or may notify the user of the opening date after the opening date, for example, by a user's input operation.

[0023] The detection system 100 in the above embodiment comprises an RFID tag 200 having a loop antenna unit 310, the loop antenna unit 310 being positioned on a cut line 2 for opening displayed on a bag container 1, and an opening detection device 400. The opening detection device 400 comprises an antenna 410 which transmits and receives signals with the loop antenna unit 310 via wireless communication, a reader 420 which can read identification information (tag ID) of the RFID tag 200 via the antenna 410, a detection unit 430 which detects that the bag container 1 has been opened if the identification information cannot be read, a memory unit 440 which stores the opening date when the bag container 1 was opened if it is detected that the bag container 1 has been opened, and a notification unit 450 which notifies the opening date.

[0024] With the above configuration, when the bag container 1 is opened, the opening date is automatically notified, eliminating the need for an operator to make a note of the opening date, thereby improving workability after the bag container is opened.

[0025] Although the container in the above embodiment has been described as the bag container 1, the present disclosure is not limited to the bag container 1. For example, the container may be a box container.

[0026] (Variation 1) Next, a first modified example of the present embodiment will be described with reference to Fig. 3. Fig. 3 is a diagram showing the relationship between the detection system and the terminal device in the first modified example of the present embodiment. In the description of the first modified example, configurations different from the above embodiment will be mainly described, and the same configurations will be denoted by the same reference numerals and descriptions thereof will be omitted.

[0027] The detection system 100 in the first modification includes a terminal device 5. The terminal device 5 is, for example, a smartphone or a tablet terminal. The terminal device 5 has a communication unit (not shown) that performs data communication with the opening detection device 400. As a result, the terminal device 5 receives the item name and the opening date, stores them in a memory (not shown), and displays the item name and opening date read from the memory on a display. The item name and opening date displayed on the display are shown in FIG. 3.

[0028] In the detection system 100 in the first modification, the product name and the opening date are stored in the memory and are also displayed on the display. This eliminates the need for the worker to take a note of the opening date, which improves the workability after the bag container is opened.

[0029] (Variation 2) Next, a second modification of the present embodiment will be described with reference to Fig. 4. Fig. 4 is a functional block diagram showing the functions of a detection system in a second modification of the present embodiment. In the description of the second modification, configurations different from those in the above embodiment will be mainly described, and the same configurations will be denoted by the same reference numerals and descriptions thereof will be omitted.

[0030] The detection system 100 in the second modification includes a server 500. The opening detection device 400 also includes a communication unit 460 that performs data communication with the server 500.

[0031] The communication unit 460 transmits the tag ID and the opening date to the server 500. The communication unit 460 receives the item information (described later) and other additional information (described later) from the server 500. This enables the notification unit 450 to notify the item information and other additional information in addition to the opening date.

[0032] Server 500 includes storage unit 510, collation unit 520, and notification unit 530. Storage unit 510 stores a list in which tag IDs are associated with item information. The item information includes the product name, an image of the product's appearance, the expiration date after opening, and other additional information.

[0033] Based on the tag ID transmitted from the communication unit 460, the collation unit 520 refers to the list and collates the item information associated with the tag ID.

[0034] Notification unit 530 notifies the opening date, item information, and other additional information. Specifically, notification unit 530 is a display unit that displays the opening date, item information (including the expiration date after opening), and other additional information as character data.

[0035] In the detection system 100 in the second modification, the opening date, item information (including the expiration date after opening), and other additional information are displayed on the notification unit 530 of the server 500. This eliminates the need to make a note of the opening date, and also makes it easier to manage the expiration date, etc.

[0036] In addition, the above-mentioned embodiments are merely examples of the embodiment of the present disclosure, and the technical scope of the present disclosure should not be interpreted as being limited by them. In other words, the present disclosure can be embodied in various forms without departing from the gist or main features thereof. [Industrial Applicability]

[0037] The present disclosure is preferably used for a management device equipped with a detection system that is required to improve operability after a container has been opened. [Explanation of symbols]

[0038] 1 bag container 2 Cutting line 3. Scissors 5 Terminal Equipment 100 Detection System 200 RFID tags 300 RFID tag circuit element 310 Loop antenna section 320 IC circuit section 330 Capacity Hat Department 340 Meander line antenna section 400 Opening detection device 410 Antenna 420 Leader 430 Detection unit 440 Storage section 450 Notification Department 500 Servers 510 Storage section 520 Collation Department 530 Notification Department

Claims

1. a wireless tag having a loop antenna portion, the loop antenna portion being disposed on a cut line for opening the container; A detection device; Equipped with The detection device includes: an apparatus-side antenna that transmits and receives signals to and from the loop antenna unit via wireless communication; a reader capable of reading the identification information of the wireless tag via the device-side antenna; a detection unit that detects that the container has been opened when the identification information cannot be read; a storage unit that stores an opening date when the container is opened if the container is detected to have been opened; Equipped with Detection system.

2. The server further includes a list in which the identification information and the object information are associated with each other, the detection device has a communication unit that performs data communication with the server, the server has a matching unit that matches the object information associated with the identification information by referring to the list based on the identification information acquired via the communication unit; The detection system of claim 1 .

3. The product information includes an expiration date after the container is opened. The detection system of claim 2 .

Citation Information

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