RFID tag for traceability management of food-grade nitrous oxide gas and container thereof

Abstract

The utility model relates to an RFID (Radio Frequency Identification Device) tag for traceability management of food-grade nitrous oxide gas and a container thereof, which can be selectively applied to the fields of logistics, inventory management or asset tracking and the like, and the tail of the RFID tag is attached to the surface of an article for automatically identifying and tracking the article. The design scheme of the antenna at least has the following advantages: 1, a closed-loop design is beneficial to providing a uniform radiation mode and a relatively good reading range, the size of the antenna can be reduced, and relatively high efficiency can be kept at the same time; 2, the RFID tag is arrow-shaped, so that the identification rate and directivity of the tag can be improved, and the overall design is beneficial to optimizing the radiation direction of the antenna, so that the antenna has better reading performance in a specific direction; and 3, the top part of the arrow tip is sunken to be connected with the RFID chip, so that good electrical connection between the chip and the antenna can be ensured, and meanwhile, the chip can be protected from physical damage. The arrow tail is used for being attached to the container, and the arrow tip part can float out of the container in the use process of the tag, so that the influence of the environment on the antenna performance is minimized.

Description

Technical Field

[0001] The utility model relates to the field of labels, in particular to an RFID label for tracing the source of food-grade nitrous oxide gas and a container thereof. Background Art

[0002] Nitrous oxide N2O, commonly known as "laughing gas", was first used as an anesthetic and later became a food-grade industrial additive - it can make cream stand upright, easy to shape and decorate, and make cream taste delicate. However, since inhaling "laughing gas" can cause hallucinations and euphoria, it is easy for users to develop psychological dependence, so it is often abused. More and more operators have turned their attention to "laughing gas" for profit, selling large amounts of "laughing gas" in entertainment venues or online platforms for people to inhale, so it needs to be traced and managed to prevent its abuse.

[0003] As the leader in tracing the source, RFID tags are expected to be used for traceability management. However, the containers for storing nitrous oxide are generally curved containers, and the tags require ultra-miniaturized antennas. In the existing RFID field, curved wire antennas are usually used, and such antennas are usually affected by the surface of the object on which they are placed and have poor performance. Microstrip antennas have more advantages than traditional wire antennas when the surface to which the RFID tag is attached needs to be considered due to their fixed ground plane. However, traditional microstrip patch antennas are large in size.

[0004] In response to this series of problems, how to provide an ultra-miniaturized label, especially one that can be used on non-planar metal surfaces, is a technical problem that needs to be solved urgently in this field. Utility Model Content

[0005] In order to solve at least one of the above technical problems, the utility model provides an RFID tag for tracing the source of food-grade nitrous oxide gas, comprising: a closed-loop antenna and a radio frequency tag chip;

[0006] The closed loop antenna is arrow-shaped overall;

[0007] The top of the arrow tip is recessed into the ring for connecting to the RFID tag chip;

[0008] Arrow nocks are used to attach to containers storing food grade nitrous oxide gas.

[0009] Furthermore, the closed-loop antenna includes a closed-loop antenna body, a matching groove running through both sides of the surface where the closed-loop antenna body is located, and a notch arranged on one side of the matching groove for disconnecting the side; the notch is located in the depression at the top of the arrow tip and is used to connect the radio frequency tag chip.

[0010] Furthermore, the notch on the matching slot is arranged on a side of the matching slot corresponding to the inner side of the closed-loop antenna body.

[0011] Furthermore, the notch is located at the midpoint of the side of the matching groove where the notch is provided.

[0012] Furthermore, the overall structure of the closed-loop antenna body and the matching slots provided on the closed-loop antenna body is designed to be an axisymmetric structure.

[0013] Furthermore, the symmetry axis of the axisymmetric structure passes through the notch on the matching groove.

[0014] Further, the nock is a large piece of metal.

[0015] Furthermore, the radio frequency tag chip adopts Yingxin C899 radio frequency tag chip.

[0016] On the other hand, the utility model also provides a container, including a container body and a label attached to the container body; the label is any of the above labels.

[0017] Furthermore, the tail of the arrow of the label is attached to the container body; and the arrow head floats outside the container body.

[0018] The utility model provides an RFID tag and container for tracing food-grade nitrous oxide gas, which can be optionally used in the fields of logistics, inventory management or asset tracking. The tail of the arrow is attached to the surface of an object for automatic identification and tracking of the object. The design of the antenna has at least the following advantages: 1. The closed-loop design helps to provide a uniform radiation pattern and a good reading range, and can also reduce the size of the antenna while maintaining high efficiency. 2. The arrow shape can improve the recognition rate and directionality of the tag. The overall design helps to optimize the radiation direction of the antenna, so that it has better reading performance in a specific direction. 3. The top of the arrow tip is recessed to connect the RFID chip, which can ensure a good electrical connection between the chip and the antenna, and help protect the chip from physical damage. 4. The tail of the arrow is used to attach the object to be attached. During the use of the tag, the arrow tip can float outside the object to be attached, so that the antenna performance is minimized by the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the RFID tag of the utility model;

[0020] Figure 2 This is a schematic structural diagram of another embodiment of the RFID tag of the utility model;

[0021] Figure 3 The figure is a schematic structural diagram of an embodiment of the container of the utility model. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that if the embodiments of the present utility model involve directional indications, such as up, down, left, right, front, back, etc., then the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly. In addition, if the embodiments of the present utility model involve descriptions such as "first, second", "S1, S2", "step one, step two", etc., then such descriptions are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features or indicating the execution order of the method, etc. Those skilled in the art can understand that everything that does not violate the key points of the utility model under the technical concept of the utility model should be included in the protection scope of the utility model.

[0024] like Figure 1-2 As shown, the utility model provides an RFID tag for tracing the source of food-grade nitrous oxide gas, comprising: a closed-loop antenna 10 and a radio frequency tag chip 20;

[0025] The closed loop antenna is arrow-shaped overall;

[0026] The top of the arrow tip is recessed into the ring for connecting to the RFID tag chip;

[0027] Arrow nocks are used to attach to containers storing food grade nitrous oxide gas.

[0028] In this embodiment, an RFID tag for tracing food-grade nitrous oxide gas of the utility model is provided, which can be optionally applied to the fields of logistics, inventory management or asset tracking, and the tail of the arrow is attached to the surface of the object for automatic identification and tracking of the object. The design scheme of the antenna has at least the following advantages: 1. The closed-loop design helps to provide a uniform radiation pattern and a good reading range, and can also reduce the size of the antenna while maintaining a high efficiency. 2. The arrow shape can improve the recognition rate and directionality of the tag, and the overall design helps to optimize the radiation direction of the antenna, so that it has better reading performance in a specific direction. 3. The top of the arrow tip is concave to connect the RFID chip, which can ensure a good electrical connection between the chip and the antenna, and at the same time help protect the chip from physical damage. 4. The tail of the arrow is used to attach the object to be attached. During the use of the tag, the arrow tip part floats outside the object to be attached, so that the antenna performance is minimized by the environment.

[0029] (I) Closed loop antenna

[0030] Preferably, Figure 1 As shown, the closed-loop antenna 10 includes a closed-loop antenna body 11, a matching groove 12 that passes through both sides of the surface where the closed-loop antenna body is located, and a notch 13 that is arranged on one side of the matching groove for disconnecting the side; the notch is located in the depression at the top of the arrow tip and is used to connect the radio frequency tag chip.

[0031] In this embodiment, a preferred embodiment of a closed-loop antenna is given, and its manufacturing process can be selected as follows: 1. Preferably, a PET substrate is used, and a preset length of the closed-loop antenna body is set along the structural trajectory, and matching grooves are set on both sides of the surface where it is located; the specific structure, length, width of the matching groove, etc. of the antenna body can be arbitrarily set by technical personnel in this field according to the working requirements of the antenna, such as reading and writing distance, performance on different dielectric materials, etc., as long as the matching groove provides inductive reactance, it can offset the capacitive reactance of the RFID tag chip and achieve impedance matching. 2. A notch is set on the side of the matching groove, specifically at the concave part at the top of the arrow tip, to disconnect the side, and the RFID tag chip is placed in the notch position of the matching groove, and the two RF pins of the RFID tag chip are respectively connected to the two ends of the notch, such as Figure 2 shown.

[0032] Preferably, the notch on the matching slot is arranged on the side of the matching slot corresponding to the inner side of the closed-loop antenna body, and the notch is located at the midpoint of the side of the matching slot where it is arranged.

[0033] More preferably, the overall structure of the closed-loop antenna body and the matching groove provided on the closed-loop antenna body is designed to be an axisymmetric structure, and the axis of symmetry passes through the notch on the matching groove.

[0034] More preferably, the tail of the arrow is a large piece of metal, which helps to enhance the radiation capability of the antenna, and at the same time, the large piece of metal is used to attach the object to be attached, which helps to ensure a good electrical connection between the antenna as a whole and the object to be tracked.

[0035] (ii) RFID tags

[0036] More preferably, the RFID tag chip may be Yingxin C899 model RFID tag chip, which has a larger capacitive reactance, and in order to maintain matching, the tag needs to be designed with a larger inductive reactance.

[0037] The utility model provides an RFID tag for tracing the source of food-grade nitrous oxide gas. The RFID tag has a simple structure, a moderate size, a low cost, and is suitable for most label application scenarios. In particular, the design structure attaches the tail of an arrow to a container, and the arrowhead floats outside the container. The RFID tag can be used on curved metal surfaces, such as storage bottles, without affecting its performance on curved surfaces. The RFID tag has omnidirectionality, can effectively trace the source of nitrous oxide, and prevents its abuse.

[0038] On the other hand, Figure 3 As shown, the utility model also provides a container, which can be optionally used for but not limited to storing liquids, gases, solids, etc., especially items of great value that need to be traced, such as medicines, nitrous oxide, etc.; including a container body and a label attached to the container body; the label is any of the above-mentioned labels.

[0039] Preferably, since the container is generally a curved structure, in order to avoid the performance degradation of the antenna due to attachment to the curved surface, only the tail of the arrow of the tag is attached to the container body; the arrow head floats outside the container body.

[0040] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. An RFID tag for tracing food-grade nitrous oxide gas, characterized in that: include: Closed loop antenna and RFID tag chip; The closed loop antenna is arrow-shaped overall; The top of the arrow tip is recessed into the ring for connecting to the RFID tag chip; Arrow nocks are used to attach to containers storing food grade nitrous oxide gas.

2. The label according to claim 1, characterized in that: A closed loop antenna comprises a closed loop antenna body, a matching groove penetrating through two sides of a surface where the closed loop antenna body is located, and a notch disposed on one side of the matching groove for disconnecting the side; The notch is located in the depression at the top of the arrow tip and is used to connect the RFID tag chip.

3. The label according to claim 2, characterized in that: The notch on the matching slot is arranged on the side of the matching slot corresponding to the inner side of the closed-loop antenna body.

4. The label according to claim 3, characterized in that: The notch is located at the midpoint of the side of the matching groove in which it is provided.

5. The label according to claim 4, characterized in that: The overall structure of the closed-loop antenna body and the matching slots arranged on the closed-loop antenna body is designed to be an axisymmetric structure.

6. The label according to claim 5, characterized in that: The symmetry axis of the axisymmetric structure passes through the notch on the matching groove.

7. The label according to claim 6, characterized in that: The nock is a large piece of metal.

8. The label according to any one of claims 1 to 7, characterized in that: The RFID tag chip uses Yingxin C899 RFID tag chip.

9. A container, characterized in that: It comprises a container body and a label attached to the container body; the label is the label according to any one of claims 1 to 8.

10. The container according to claim 9, characterized in that The tail of the arrow on the label is attached to the container body; the arrow head floats outside the container body.

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