Clampable passive light storage type dual-frequency RFID recycling electronic tag

Abstract

The application relates to a clamped and fixed passive light storage type double-frequency RFID recycling electronic tag, belonging to the technical field of electronic tags for intelligent logistics terminals, which comprises a substrate, a long-afterglow luminescent material layer, an energy storage unit, a double-frequency RFID chip, a MOS tube switch, an auxiliary light excitation unit and an antenna; the long-afterglow luminescent material layer is coated on the top of the substrate and connected with the energy storage unit, and the double-frequency RFID chip is arranged in the substrate; the antenna is connected with the double-frequency RFID chip; the long-afterglow luminescent material layer is used for absorbing ambient light energy; the energy storage unit is used for converting the ambient light energy absorbed by the long-afterglow luminescent material layer into electric energy and storing the electric energy; the double-frequency RFID chip is used for receiving a radio frequency instruction sent by a UHF reader-writer, turning on the MOS tube switch, making the energy storage unit briefly discharge the auxiliary light excitation unit, generating short-time specific wavelength light, and triggering the long-afterglow luminescent material layer to continuously emit light.

Description

Technical Field

[0001] This invention belongs to the field of electronic tag technology for intelligent logistics terminals, and relates to a passive photoluminescent dual-frequency RFID recyclable electronic tag that can be clamped and fixed. Background Technology

[0002] Express delivery stations and e-commerce warehouses are key nodes in the flow of massive amounts of parcels. Electronic tags are a core component for improving the efficiency of parcel locating and inventory management. Current technologies mainly use active RFID tags or disposable passive tags. Active RFID tags are mostly fixed installations that require battery power, while disposable passive tags can only be used once and cannot be recycled. Some research combines RFID with luminescent materials, but this is still an active design or printed on packaging, making them unrecyclable. Therefore, existing technologies mainly have the following problems: reliance on batteries leads to high maintenance costs and easy failure; fixed deployment is complex and requires modification of shelves; it cannot accurately locate parcels, only shelves; disposable use is costly and generates electronic waste; and it lacks comprehensive functions such as visual guidance, batch reading, and close-range verification. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a clampable and fixed passive photoluminescent dual-frequency RFID recyclable electronic tag, which solves the problems of existing electronic tags in warehouses / stations that rely on batteries, are complex to deploy, cannot accurately locate items, and are costly and difficult to recycle and reuse.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A clampable and fixed passive photoluminescent dual-frequency RFID recyclable electronic tag. It includes a substrate, a long afterglow luminescent material layer, an energy storage unit, a dual-frequency RFID chip, a MOSFET switch, an auxiliary photoexcitation unit, and an antenna; The long-afterglow luminescent material layer is coated on the top of the substrate and connected to the energy storage unit. The dual-frequency RFID chip is disposed within the substrate. The antenna is connected to the dual-frequency RFID chip. The long-afterglow luminescent material layer is used to absorb ambient light energy. The energy storage unit is used to convert the ambient light energy absorbed by the long-afterglow luminescent material layer into electrical energy and enrich and store it. The dual-frequency RFID chip is used to receive radio frequency commands sent by the RFID reader, turn on the MOS transistor switch, and cause the energy storage unit to briefly discharge the auxiliary photoexcitation unit, generating short-term specific wavelength illumination, triggering the long-afterglow luminescent material layer to emit light continuously.

[0005] Furthermore, it includes a clamping structure located at one end of the base.

[0006] Furthermore, it includes a hook and loop fastener attached to one end of the base.

[0007] Furthermore, it includes a tethering hole located at the other end of the base.

[0008] Furthermore, the long afterglow material layer is made of strontium aluminate-based material.

[0009] Furthermore, the long afterglow material layer is made of zinc sulfide-based material.

[0010] Furthermore, the dual-frequency RFID chip supports UHF and HF / NFC dual-frequency communication.

[0011] Furthermore, the antenna includes a UHF antenna and an HF antenna, wherein the UHF antenna is used for long-distance batch reading and the HF antenna is used for close-range touch verification.

[0012] Furthermore, the dual-frequency RFID chip is a single-frequency UHF chip and an external NFC module.

[0013] The beneficial effects of this invention are as follows: 1. Passive and maintenance-free: It utilizes ambient light to store energy, eliminating the need for batteries and solving the problems of existing tags relying on batteries and having high maintenance costs; 2. Item-level precise positioning: The long-afterglow material layer guides the light emission, enabling one-to-one precise positioning of the package and tag, solving the problem that existing tags cannot be accurately positioned down to the item level; 3. Recyclable: After disassembly and recycling, the labels can be disinfected and tested for reuse, solving the problems of existing labels being disposable, costly, and generating a lot of electronic waste; 4. Simple deployment: The clamping / tying structure requires no modification to the shelf and can be directly fixed to the package, solving the problem of complex deployment of existing label fixing methods; 5. High efficiency of dual-frequency communication: The UHF channel enables long-distance batch reading, improving inventory / outbound efficiency, while the HF channel supports mobile phone touch verification, enhancing user experience and solving the problem of limited functionality of existing tags; 6. Balancing cost and environmental protection: Passive and recyclable technology significantly reduces total cost, aligning with the circular economy.

[0014] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0015] To make the objectives, technical solutions, and advantages of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein: Figure 1A schematic diagram of a clampable and fixed passive photoluminescent dual-frequency RFID recyclable electronic tag structure; Reference numerals: 1-substrate, 2-long afterglow luminescent material layer, 3-dual-frequency RFID chip, 4-antenna, 5-clamping structure, 6-tethering hole. Detailed Implementation

[0016] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0017] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the invention. To better illustrate the embodiments of the invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0018] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0019] Example 1: like Figure 1 As shown, the present invention provides a clampable and fixed passive photoluminescent dual-frequency RFID recyclable electronic tag. This tag is a rigid device and includes the following parts: Base 1: Made of ABS plastic, serving as the carrier for all components; Long afterglow luminescent material layer 2: Coated on the surface of the substrate, in this embodiment it is set on the top of the substrate and is made of strontium aluminate-based light-storing material, which can absorb ambient light and slowly release it; Energy storage unit: used to convert ambient light energy absorbed by the long afterglow luminescent material layer into electrical energy and enrich and store it; in this embodiment, it is a micro-patch capacitor or an ultra-thin micro lithium battery; Auxiliary light excitation unit: This is an LED light-emitting unit connected to the long afterglow light-emitting material layer 2, used to receive the brief discharge of the energy storage unit and generate short-term specific wavelength light. Dual-frequency RFID chip 3: Embedded in the substrate, supporting UHF (860-960MHz) and HF / NFC (13.56MHz) dual-frequency communication; Antenna 4: Printed within the substrate and connected to the chip, wherein the UHF antenna is used for long-distance batch reading and the HF antenna is used for short-distance touch verification; Clamping structure 5: Located at one end of the base, using a spring clip, used to clamp the base onto the package; Rope hole 6: Located at the other end of the base, used for threading ropes for fixing.

[0020] The long afterglow material layer 2 is bonded to the substrate 1; the RFID chip 3 is connected to the antenna 4 via a wire; the clamping structure 5 and the tethering hole 6 are both fixed to both ends of the substrate 1.

[0021] When the dual-frequency RFID chip (UHF band) receives the "find item / trigger light emission" radio frequency command from the reader, it internally rectifies, demodulates, and parses the command, outputting a compliant high / low level control signal through the control I / O or auxiliary pins. This level signal is input to the MOSFET switch control terminal, causing the MOSFET to switch from the off state to the on state. After the MOSFET is turned on, the energy storage unit briefly discharges to the auxiliary photoexcitation unit, generating short-term specific wavelength light illumination. This short-term illumination illuminates the long-afterglow luminescent material layer, stimulating and enhancing its afterglow. This causes a significant jump or short-term increase in brightness in the long-afterglow layer in a dark environment, serving as a visible light emission guide. After the auxiliary light source is turned off, the long-afterglow material layer continues to maintain afterglow emission using the previously stored light energy, achieving a lower power consumption and the same brightness emission scheme.

[0022] The workflow of this invention is as follows: Energy storage: Indoor lighting and natural light illuminate the long afterglow material layer 2, causing it to absorb and store energy; Visual guidance: When a part needs to be located, the RFID reader (in this embodiment, it is a UHF reader) sends a radio frequency command to trigger the long afterglow material layer 2 to emit light, wherein the afterglow duration is ≥72 hours, thereby achieving precise visual positioning at the part level. Batch reading: The UHF channel (4 antennas + 3 chips) supports long-distance batch reading of tag IDs for inventory and outbound operations; Near-field verification: The HF / NFC channel (antenna 4 + chip 3) supports mobile phone touch to read tag information, including recipient and package status, for user verification; Recycling: After the work is completed, the label is removed from the package through the clamping structure 5 or the lanyard hole 6. After recycling, it is disinfected and tested, and can be reused ≥100 times.

[0023] Example 2: In this embodiment, the clamping structure is replaced with Velcro, and the base is attached to the package using hook and loop fasteners.

[0024] In this embodiment, the long afterglow material layer is made of zinc sulfide-based material.

[0025] In this embodiment, the dual-frequency chip is replaced with a single-frequency UHF chip + an external NFC module.

[0026] Example 3: In this embodiment, the substrate 1 is made of ABS plastic with dimensions of 50mm×30mm×2mm; the long afterglow material layer 2 is 0.1mm thick, made of strontium aluminate, with afterglow brightness ≥100cd / m² and afterglow duration ≥72 hours; the dual-frequency RFID chip 3 uses NXPUCODE 8+ NTAG 213; the antenna 4 is made of copper foil printing, wherein the UHF antenna is 1 / 4 wavelength long and the HF antenna adopts a spiral structure; the clamping structure 5 is a spring clip with an opening width ≤10mm; the tether hole 6 has a diameter of 2mm.

[0027] In this embodiment, the experimental data are as follows: Energy storage test: After charging for 2 hours under ambient light, the afterglow brightness is ≥100cd / m² for 72 hours. Reading distance: UHF channel ≥ 5 meters, batch reading 100 items / second; HF channel ≤ 10 centimeters, read by mobile phone touch. Recyclable: After 100 disassembly-recycling-disinfection cycles, the luminous brightness decreases by ≤10%, and the RFID performance remains unchanged; Cost test: The raw material cost of a single label is ≤0.3 yuan, and the cost per use after 100 cycles is ≤0.003 yuan, which is far lower than the existing disposable label cost of 0.5 yuan per use.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A clampable and fixed passive photoluminescent dual-frequency RFID recyclable electronic tag, characterized in that: It includes a substrate, a long afterglow luminescent material layer, an energy storage unit, a dual-frequency RFID chip, a MOSFET switch, an auxiliary photoexcitation unit, and an antenna; The long-afterglow luminescent material layer is coated on the top of the substrate and connected to the energy storage unit. The dual-frequency RFID chip is disposed within the substrate. The antenna is connected to the dual-frequency RFID chip. The long-afterglow luminescent material layer is used to absorb ambient light energy. The energy storage unit is used to convert the ambient light energy absorbed by the long-afterglow luminescent material layer into electrical energy and enrich and store it. The dual-frequency RFID chip is used to receive radio frequency commands sent by the RFID reader, turn on the MOS transistor switch, and cause the energy storage unit to briefly discharge the auxiliary photoexcitation unit, generating short-term specific wavelength illumination, triggering the long-afterglow luminescent material layer to emit light continuously.

2. The clampable and fixed passive photoluminescent dual-frequency RFID recyclable electronic tag according to claim 1, characterized in that: This includes a clamping structure located at one end of the base.

3. The clampable and fixed passive photoluminescent dual-frequency RFID recyclable electronic tag according to claim 1, characterized in that: Includes a Velcro strap located at one end of the base.

4. The clampable and fixed passive photoluminescent dual-frequency RFID recyclable electronic tag according to claim 1, characterized in that: This includes a tethering hole located at the other end of the base.

5. The clampable and fixed passive photoluminescent dual-frequency RFID recyclable electronic tag according to claim 1, characterized in that: The long afterglow material layer is made of strontium aluminate-based material.

6. The clampable and fixed passive photoluminescent dual-frequency RFID recyclable electronic tag according to claim 1, characterized in that: The long afterglow material layer is made of zinc sulfide-based material.

7. The clampable and fixed passive photoluminescent dual-frequency RFID recyclable electronic tag according to claim 1, characterized in that: The dual-frequency RFID chip supports UHF and HF / NFC dual-frequency communication.

8. The clampable and fixed passive photoluminescent dual-frequency RFID recyclable electronic tag according to claim 1, characterized in that: The antenna includes a UHF antenna and an HF antenna. The UHF antenna is used for long-distance batch reading, and the HF antenna is used for close-range touch verification.

9. The clampable and fixed passive photoluminescent dual-frequency RFID recyclable electronic tag according to claim 1, characterized in that: The dual-frequency RFID chip is a single-frequency UHF chip with an external NFC module.

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