CN220020301U - Dual-frenquency intelligence RFID label - Google Patents
Dual-frenquency intelligence RFID label Download PDFInfo
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- CN220020301U CN220020301U CN202321369276.8U CN202321369276U CN220020301U CN 220020301 U CN220020301 U CN 220020301U CN 202321369276 U CN202321369276 U CN 202321369276U CN 220020301 U CN220020301 U CN 220020301U
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Abstract
The utility model relates to the technical field of automatic identification tags, in particular to a double-frequency intelligent RFID tag, a high-frequency tag antenna is arranged in a semi-closed space at one side of an ultrahigh-frequency tag antenna, the high-frequency tag antenna is connected with the other side of the ultrahigh-frequency tag antenna through an RFID double-frequency chip, the ultrahigh-frequency tag antenna and the RFID double-frequency chip are both arranged on a middle base material, and the high-frequency tag antenna passes through the middle base material to form a loop.
Description
Technical Field
The utility model relates to the technical field of automatic identification tags, in particular to a dual-frequency intelligent RFID tag.
Background
RFID is a wireless communication technology in which tag contents are read by radio frequency signals, and low frequency, high frequency, and ultra-high frequency are classified according to frequencies. Along with the development of the technology of the internet of things, the industry of the RFID is also faced with new opportunities and challenges, the market is further expanded, and more industries are interested in the RFID technology and gradually added into application scenes.
At present, in the RFID field, whether an active electronic tag or a passive electronic tag is adopted, the active electronic tag is generally a single-frequency electronic tag, such as a low-frequency electronic tag, a high-frequency electronic tag or an ultrahigh-frequency electronic tag, the electronic tags which are simultaneously integrated with two frequency bands are relatively few in the market, and the electronic tags which are integrated with two frequency bands have the problems of complex size and manufacturing process.
Based on the reasons, the utility model provides the double-frequency intelligent RFID tag, which realizes the miniaturization of the double-frequency intelligent tag by optimizing the antenna design, so that the performance is improved to a greater extent, the data accuracy is ensured, and meanwhile, the distance between the data and a consumer can be better shortened, so that the whole ecology is more complete.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides a double-frequency intelligent RFID tag, which realizes the miniaturization of the double-frequency intelligent tag by optimizing the antenna design, so that the performance is improved to a greater extent, the distance between the data and a consumer can be better shortened while the accuracy of the data is ensured, and the whole ecology is more complete.
In order to achieve the above purpose, the utility model provides a dual-frequency intelligent RFID tag, which comprises an ultrahigh frequency tag antenna, a high frequency tag antenna, an RFID dual-frequency chip and a middle substrate, wherein a high frequency tag antenna is arranged in a semi-closed space at one side of the ultrahigh frequency tag antenna, the high frequency tag antenna is connected with the other side of the ultrahigh frequency tag antenna through the RFID dual-frequency chip, the ultrahigh frequency tag antenna and the RFID dual-frequency chip are both arranged on the middle substrate, and a loop is formed after the high frequency tag antenna passes through the middle substrate.
The intermediate substrate is a transparent film type non-conductive substrate.
The line type of one side of the ultrahigh frequency tag antenna is a roundabout line.
The high-frequency tag antenna is positioned on two sides of the middle base material and is wound in a ring shape.
The area formed by the ultrahigh frequency tag antenna is larger than the area formed by the high frequency tag antenna.
The ultrahigh frequency tag antenna and the high frequency tag antenna are both conductive coil circuits.
The ultrahigh frequency tag antenna and the high frequency tag antenna are connected with the RFID double-frequency chip to form a closed resonant circuit.
The middle substrate is a polyester film or polyimide film or paper substrate.
The ultrahigh frequency tag antenna and the high frequency tag antenna are aluminum foil or copper foil or stainless steel foil or conductive silver paste antennas.
The RFID double-frequency chip is an EM4425 chip compatible with ultrahigh frequency and high frequency.
Compared with the prior art, the RFID dual-frequency antenna is connected with the ultrahigh-frequency tag antenna and the high-frequency tag antenna to form a closed resonant loop, so that the miniaturized dual-frequency intelligent tag design is realized, related standard protocols are respectively met, identification can be performed through the identifier or the mobile phone, the performance of the whole tag can be controlled by controlling the sizes of the ultrahigh-frequency tag antenna and the high-frequency tag antenna, the number of turns of the positive coil and the negative coil and the coil size, the structural design is simple, the maintenance is easy, and the RFID dual-frequency antenna has good use scene applicability and market value.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Reference numerals illustrate:
1 is an ultrahigh frequency tag antenna, 2 is a high frequency tag antenna, 3 is an RFID double-frequency chip, and 4 is an intermediate substrate.
Detailed Description
The utility model will now be further described with reference to the accompanying drawings.
Referring to fig. 1, the utility model provides a dual-frequency intelligent RFID tag, which comprises an ultrahigh frequency tag antenna 1, a high frequency tag antenna 2, an RFID dual-frequency chip 3 and a middle base material 4, wherein a semi-closed space at one side of the ultrahigh frequency tag antenna 1 is provided with the high frequency tag antenna 2, the high frequency tag antenna 2 is connected with the other side of the ultrahigh frequency tag antenna 1 through the RFID dual-frequency chip 3, the ultrahigh frequency tag antenna 1 and the RFID dual-frequency chip 3 are both arranged on the middle base material 4, and the high frequency tag antenna 2 passes through the middle base material 4 to form a loop.
The intermediate substrate 4 is a transparent film type nonconductive substrate.
The line type on one side of the uhf tag antenna 1 is a detour line.
The high-frequency tag antenna 2 is provided with loop windings on both sides of the intermediate substrate 4.
The area formed by the ultrahigh frequency tag antenna 1 is larger than the area formed by the high frequency tag antenna 2.
The ultrahigh frequency tag antenna 1 and the high frequency tag antenna 2 are both conductive coil circuits, and are manufactured by adopting copper foil or aluminum thin through a screen printing process or an etching process, or are manufactured by directly adopting a silver paste printing or conductive ink printing mode.
The ultrahigh frequency tag antenna 1 and the high frequency tag antenna 2 are connected with the RFID double-frequency chip 3 to form a closed resonant circuit, so that the RFID double-frequency chip has radio frequency performance and is convenient to read.
The intermediate substrate 4 is a polyester film, a polyimide film or a paper substrate, and has good toughness and good insulating effect, and the influence on the tag is reduced to the minimum.
The ultrahigh frequency tag antenna 1 and the high frequency tag antenna 2 are aluminum foil or copper foil or stainless steel foil or conductive silver paste antennas.
The RFID dual-frequency chip 3 is an EM4425 chip compatible with ultrahigh frequency and high frequency.
Working principle:
the utility model does not need excessive debugging when in use, the working frequency band of the high-frequency tag antenna 2 is 13.56MHz, the high-frequency tag antenna works in an inductive coupling mode, the reading distance is relatively close, generally about 10cm, and the high-frequency tag antenna has NFC function and can read tag information at any time by a mobile phone. The working frequency band of the UHF tag antenna 1 is 860-960MHz, and the UHF tag antenna works by utilizing electromagnetic wave mode. Can be read remotely, typically from a few meters to tens of meters. The actual use environment is usually complex, so that the features of the dual-frequency tag are needed to realize the use environment.
The length of the antenna should occupy the whole length of the whole dual-frequency antenna when the ultra-high frequency tag antenna 1 is designed, the ultra-high frequency tag antenna 1 comprises a dipole antenna with a U shape, a large inductive coil close to a chip and a part of coupling part, the shape and the size of the areas are adjusted to enable the ultra-high frequency performance to reach the optimal state, generally, the ultra-high frequency tag antenna 1 is made of single-sided materials and is attached to one surface of the middle base material 4, and the area of the spare part of the middle semi-closed is used by the high frequency tag antenna 2. The ultrahigh frequency tag antenna 1 is connected with an RFID double-frequency chip 3 compatible with high frequency and ultrahigh frequency, the working frequency is in the range of 860MHz-960MHz, the reading distance is several meters to more than ten meters, and the reading distance accords with the ISO18000-6C protocol.
The high-frequency tag antenna 2 is a double-sided winding antenna, is attached to two sides of the middle substrate 4, is in a ring-shaped reverse character structure, is arranged at a vacant part of the ultrahigh-frequency tag antenna 1, and is used for hooking the circuits on the front side and the back side, so that the circuits are positively and negatively conducted. The larger the size is when the high-frequency tag antenna 2 is designed, the larger the mutual inductance between the high-frequency tag antenna 1 is, and the performance of the tag is controlled by adjusting the number of turns and the coil size of the positive and negative coils under the proper size. The high-frequency tag antenna 2 is connected with the RFID double-frequency chip 3 compatible with high frequency and ultrahigh frequency, the working frequency is 13.56MHz, the reading distance is about 10cm, and the high-frequency tag antenna accords with the ISO15963 protocol.
The RFID double-frequency chip 3 is an EM4425 double-frequency chip developed by EM company, the chip is provided with four pins, two pins are connected with the ultrahigh frequency tag antenna 1, the other two pins are connected with the high frequency tag antenna 2, and the RFID double-frequency chip 3 is connected with the two tags through reverse encapsulation by using asynchronous epoxy resin conductive adhesive, so that the whole tag simultaneously accords with ISO18000-6C and ISO15693 protocols. The ultrahigh frequency tag antenna 1 can be identified by a handset, and the high frequency tag antenna 2 can be read by a handset APP.
In the aspect of actual application scenes:
and (3) in the use of the retail terminal, the manufacturer writes the double-frequency label into parameter data, data links and the like of the commodity in advance, and attaches the label to the commodity. The warehouse or retailer may perform inventory work based on the uhf tag antenna 1 portion. And when approaching to the double-frequency tag, the consumer can inquire various information of the commodity, such as the production place, processing mode, transportation and storage conditions and the like of various raw materials of the commodity, can check the using method, the latest product recommendation, the preferential policy and the like of the commodity through the previously written data link, and can evaluate the product, so that the blank link of the retail-end commodity after sale is made up, and more visual experience is brought to the subsequent consumer. The manufacturer can also adjust the life cycle of the product in time according to the feedback of the consumer, optimize the performance of the product, form a complete ecology for the supply chain, and can perfectly provide an anti-counterfeiting function because the uniqueness of the label is difficult to copy the same label.
In the use of the linen industry, a user scalds or sews the double-frequency tag on the linen, and the ultra-high frequency tag antenna 1 is used for reading and writing data in a warehouse, hotel management or washing factory. The service state and the service life of each article are recorded, and when the consumer section can use the NFC function of the mobile phone and approaches to the double-frequency tag, the current specific information can be queried to acquire whether the current linen is washed or not, the washing time condition can be clear at a glance, and the previous naked eyes are not used for judging.
The above is only a preferred embodiment of the present utility model, only for helping to understand the method and the core idea of the present utility model, and the scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.
The utility model solves the problems of complex size and manufacturing process of the electronic tag integrating double frequency bands in the prior art, integrates the ultrahigh frequency tag antenna 1 and the high frequency tag antenna 2 through ingenious design, can flexibly allocate the performance of the antenna, has the working frequency of 860MHz-960MHz range, has the reading distance of several meters to more than ten meters and accords with the ISO18000-6C protocol, has the working frequency of 13.56MHz and the reading distance of about 10cm, accords with the ISO15963 protocol, can be read through a recognition machine and a mobile phone APP, and has good use experience and market popularization value.
Claims (10)
1. The utility model provides a dual-frenquency intelligence RFID label, its characterized in that, including hyperfrequency tag antenna (1), high frequency tag antenna (2), RFID dual-frenquency chip (3) and middle substrate (4), the semi-enclosed space in one side of hyperfrequency tag antenna (1) is provided with high frequency tag antenna (2), high frequency tag antenna (2) pass through RFID dual-frenquency chip (3) with the opposite side of hyperfrequency tag antenna (1) is connected, hyperfrequency tag antenna (1) and RFID dual-frenquency chip (3) all set up on middle substrate (4), high frequency tag antenna (2) pass form the loop behind middle substrate (4).
2. Dual-frequency smart RFID tag according to claim 1, characterized in that the intermediate substrate (4) is a transparent film-like non-conductive substrate.
3. The dual-frequency intelligent RFID tag according to claim 1, wherein the line type of one side of the ultra-high frequency tag antenna (1) is a detour line.
4. The dual-frequency intelligent RFID tag according to claim 1, wherein the high frequency tag antenna (2) is provided with loop windings on both sides of the intermediate substrate (4).
5. The dual-frequency smart RFID tag according to claim 1, wherein the ultra-high frequency tag antenna (1) forms an area larger than the area formed by the high frequency tag antenna (2).
6. The dual-frequency smart RFID tag according to claim 1, wherein the ultra-high frequency tag antenna (1) and the high frequency tag antenna (2) are both conductive coil circuits.
7. The dual-frequency intelligent RFID tag according to claim 1, wherein the ultrahigh frequency tag antenna (1) and the high frequency tag antenna (2) form a closed resonant circuit after being connected with the RFID dual-frequency chip (3).
8. The dual-frequency smart RFID tag according to claim 1, wherein the intermediate substrate (4) is a substrate of mylar or polyimide film or paper.
9. The dual-frequency smart RFID tag according to claim 1, wherein the ultra-high frequency tag antenna (1) and the high frequency tag antenna (2) are aluminum foil or copper foil or stainless steel foil or conductive silver paste antennas.
10. The dual-frequency smart RFID tag according to claim 1, wherein the RFID dual-frequency chip (3) is an EM4425 chip compatible with ultra-high frequency and high frequency.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202321369276.8U CN220020301U (en) | 2023-06-01 | 2023-06-01 | Dual-frenquency intelligence RFID label |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202321369276.8U CN220020301U (en) | 2023-06-01 | 2023-06-01 | Dual-frenquency intelligence RFID label |
Publications (1)
Publication Number | Publication Date |
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CN220020301U true CN220020301U (en) | 2023-11-14 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN202321369276.8U Active CN220020301U (en) | 2023-06-01 | 2023-06-01 | Dual-frenquency intelligence RFID label |
Country Status (1)
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CN (1) | CN220020301U (en) |
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2023
- 2023-06-01 CN CN202321369276.8U patent/CN220020301U/en active Active
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