CN212112533U - RFID label shielding structure and shielding system - Google Patents
RFID label shielding structure and shielding system Download PDFInfo
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- CN212112533U CN212112533U CN202020612985.4U CN202020612985U CN212112533U CN 212112533 U CN212112533 U CN 212112533U CN 202020612985 U CN202020612985 U CN 202020612985U CN 212112533 U CN212112533 U CN 212112533U
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Abstract
The utility model provides a RFID label shielding structure and shielding system, including article, supporter and card reader, be equipped with the shielding body on the contact surface that the supporter contacts with the commodity; the shielding body comprises two layers which are connected through an elastic structure, one layer is a shielding layer, the other layer is provided with an RFID label, when the article leaves the article shelf, a signal of the RFID label is read by the card reader, and when the article is placed on the article shelf, the card reader cannot read the signal of the RFID label; the utility model discloses with low costs, can arrange in a large number, easy to assemble can quick discernment.
Description
Technical Field
The utility model relates to a communication antenna technical field specifically is a RFID label shielding structure and shielding system.
Background
At present, there are many technical solutions for reading an RFID tag in the market, but in many application scenarios, we need to not only read the RFID tag, but also shield the signal of the RFID tag at some specific time or under some specific circumstances.
Disclosure of Invention
An object of the utility model is to overcome above-mentioned problem, provide a RFID label shielding structure and shielding system.
In order to achieve the above object, the present invention provides a shielding structure for an RFID tag, comprising a shielding body, wherein the shielding body comprises two layers connected by an elastic structure, one layer is a shielding layer, and the other layer comprises an RFID tag; when the elastic structure is in a compressed state, the RFID label is close to the shielding layer, and signals of the RFID label are shielded; when the elastic structure is in an extension state, the RFID label is far away from the shielding layer, and signals of the RFID label are not shielded.
As an implementation manner, the RFID tag is close to the shielding layer, and specifically includes: the shielding layer is in contact with the RFID tag.
As an embodiment, the elastic structure comprises a spring.
As an embodiment, the shielding layer is provided with a shielding material including one or more of a metal plate, a metal mesh, and a radio wave shielding film.
As one possible implementation, the RFID tag includes a transmitting and receiving antenna, an AC/DC circuit, a demodulation circuit, a logic control circuit, an ID memory, and a modulation circuit.
The utility model also provides a RFID label shielding system, which comprises an article, a storage rack and a card reader, wherein a shielding body is arranged on the contact surface of the storage rack, which is contacted with the commodity; the shielding body comprises two layers which are connected through an elastic structure, wherein one layer is a shielding layer, and the other layer is provided with an RFID label; when the article leaves the commodity shelf, the signal of the RFID label is read by the card reader, and when the article is placed on the commodity shelf, the card reader cannot read the signal of the RFID label.
As an implementation mode, when the article is placed on the article shelf, the elastic structure is in a compressed state, and the shielding layer is close to the electronic tag; when the article leaves the article shelf, the elastic structure is in an extension state, and the shielding layer is far away from the electronic tag.
As an implementation manner, the shielding layer is close to the electronic tag, and specifically includes: the shielding layer is in contact with the electronic tag.
The RFID tag comprises a reader, a far-field antenna and a far-field antenna, wherein the far-field antenna is arranged on the top layer of the commodity shelf and used for receiving signals of the RFID tag and being read by the reader.
As an embodiment, the elastic structure comprises a spring.
The utility model has the advantages that:
the utility model provides a RFID label shielding structure and shielding system, including article, supporter and card reader, be equipped with the shielding body on the contact surface that the supporter contacts with the commodity; the shielding body comprises two layers which are connected through an elastic structure, wherein one layer is a shielding layer, and the other layer is provided with an RFID label; when the article is placed on the article shelf, the elastic structure is in a compressed state, the two layers of the shielding body are in contact, and the signal of the RFID tag is shielded; when the article is picked up, the elastic structure is in an extension state, the two layers of the shielding body are separated, the RFID tag can receive data sent by the card reader and send the ID of the tag back to the card reader, and the card reader can finish the identification of the article according to the received ID of the tag; the utility model has low cost, can be deployed in large quantity, has low requirements on the card reader, and only needs to read the picked RFID label 30; the installation is convenient, can discern fast.
Drawings
Fig. 1 is a schematic perspective view of the shielding structure and the article according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1, the present embodiment provides a shielding structure of an RFID tag, which includes a shielding body, where the shielding body includes two layers connected by an elastic structure, one layer is a shielding layer 41, and the other layer 42 is provided with an RFID tag 30; when the spring structure 50 is in a compressed state, the two layers of the shielding body are in contact; when the spring structure 50 is in an extended state, the two layers of the shield body are separated.
The elastic structure comprises a spring; it should be noted that the elastic structure 50 in fig. 1 is a schematic diagram, and is only an exemplary function, and the actual shape may be determined by the specific shape of different elastic structures.
The shielding layer 41 is provided with a shielding material, and the shielding material includes one or more of a metal plate, a metal mesh, and a radio wave shielding film, and specifically includes: the shielding layer can be any shielding material, such as: a metal plate, a metal mesh, and a radio wave shielding film; the metal plate may be a copper foil.
Each article 10 corresponds to a tag ID of the RFID tag 30, the RFID tag 30 is attached to the article 10 and forms a binding with the article 10, and the attaching position of the electronic tag 30 can be adjusted according to the type of the article 10; the RFID tag 30 receives the microwave signal transmitted by the card reader, and obtains energy through the electromagnetic induction coil to supply power to the RFID tag for a short time, so that information exchange is completed; the RFID tag 30 includes a transmitting/receiving antenna, an AC/DC circuit, a demodulation circuit, a logic control circuit, an ID memory, and a modulation circuit.
It should be noted that, in the present embodiment, the RFID tag 30, the card reader, and the antenna are all in the prior art, and the detailed structure and a part of the connection relationship thereof will not be described in detail in the present embodiment.
The shielding layer 41 is an upper layer, and the other layer 42 containing the RFID tag is a lower layer, or the layer 42 containing the RFID tag is an upper layer, and the shielding layer 41 is a lower layer; the lower layer is fixed on the shelf and is attached to the shelf; the upper layer is in contact with the article 10.
When the article 10 is placed on the shelf, the elastic structure 50 is in a compressed state, the RFID tag approaches the shielding layer, and the RFID tag signal is shielded; when the article is picked up, the elastic structure is in an extension state, the two layers of the shielding body are separated, the RFID tag is far away from the shielding layer, and the RFID tag signal is not shielded.
It should be noted that, the closer the electronic tag 30 is to the shielding material, the better the shielding effect is, so when the electronic tag 30 is tightly attached to the shielding material, the shielding effect is the best; moreover, this shielding structure can be applicable to any application scene that can use this shielding structure, the utility model discloses do not restrict.
Based on the same inventive concept, the present embodiment further provides an RFID tag shielding system, and reference may be made to the foregoing related description for specific configuration and function of the shielding body, and repeated parts are not repeated.
An RFID label shielding system comprises an article 10, an article shelf and a card reader, wherein a shielding body is arranged on a contact surface of the article shelf, which is in contact with a commodity; the shielding body comprises two layers which are connected through an elastic structure, wherein one layer 41 is a shielding layer 41, the other layer 42 is provided with the RFID tag 30, when the article 10 leaves the storage rack, the signal of the RFID tag 30 is read by the card reader, and when the article 10 is placed on the storage rack, the card reader cannot read the signal of the RFID tag 30.
The RFID label shielding system further comprises a far-field antenna, wherein the far-field antenna is arranged on the top layer of the commodity shelf and is used for receiving signals of the RFID label and reading the signals by the card reader; the number of the far-field antennas can be multiple, and the number of the far-field antennas is comprehensively determined according to field requirements and the number of the card readers.
In this embodiment, the card reader for receiving and transmitting data with the electronic tag can be placed at will, and the reason why the antenna is fixed on the top layer of the storage rack is that when the antenna is arranged on the top layer of the storage rack, the covered signal range is large.
When the article are placed on the commodity shelf, the elastic structure receives the pressure of the article, the elastic structure is compressed, the upper layer and the lower layer of the shielding body are tightly attached, namely the shielding layer and the RFID tag 30 are tightly attached, at the moment, the RFID tag 30 is shielded by the shielding layer 41, and the outside information cannot be received.
When the article 10 is picked up, the elastic structure loses pressure and returns to a normal extension state, the upper layer and the lower layer of the shielding body are separated, that is, as shown in fig. 1, the RFID tag 30 is also separated from the shielding layer 41, the RFID tag 30 can receive a signal sent by the card reader and send a tag ID back to the card reader, the card reader receives the signal, decodes the tag ID, packs the serial number of the card reader, and finally transmits the packed information to the host through the USB interface, the host identifies the article category through the received RFID tag ID, and the position range of the article is obtained through the serial number of the card reader.
The utility model discloses a RFID label shielding structure and shielding system, which comprises an article 10, a shelf and a card reader, wherein a shielding body is arranged on the contact surface of the shelf, which is contacted with a commodity; the shield body comprises two layers connected by a resilient structure 50, one layer comprising a shield layer 41 and the other layer 42 comprising an RFID tag 30; when the article 10 is placed on the article shelf, the elastic structure 50 is in a compressed state, and the two layers of the shielding body are tightly attached; when the article is picked up, the elastic structure 50 is in an extended state, and the two layers of the shielding body are separated; when the article 10 is placed on the shelf, the signal of the RFID tag is shielded, and when the article 10 is picked up by a customer, the RFID tag 30 leaves the shielding layer 41, so as to receive the data sent by the card reader and send back the tag ID to the card reader, and the card reader can complete the identification of the article according to the received tag ID.
The utility model has low cost, can be deployed in large quantity, has low requirements on the card reader, and only needs to read the picked RFID label 30; the coverage range of the far-field antenna is wide, the interactive reaction speed is high, the size is small, the installation is convenient, and the quick identification can be realized.
Although the present invention has been disclosed in the preferred embodiments, it is not intended to limit the present invention, and any person skilled in the art can use the above-mentioned method and technical contents to make possible changes and modifications to the technical solution of the present invention without departing from the spirit and scope of the present invention, and therefore, any simple modification, equivalent changes and modifications made to the above embodiments by the technical substance of the present invention all belong to the protection scope of the technical solution of the present invention.
Claims (10)
1. The RFID label shielding structure is characterized by comprising a shielding body, wherein the shielding body comprises two layers which are connected through an elastic structure, one layer is a shielding layer, and the other layer comprises an RFID label; when the elastic structure is in a compressed state, the RFID label is close to the shielding layer, and signals of the RFID label are shielded; when the elastic structure is in an extension state, the RFID label is far away from the shielding layer, and signals of the RFID label are not shielded.
2. The shielding structure of claim 1, wherein the RFID tag is close to the shielding layer, and specifically comprises: the shielding layer is in contact with the RFID tag.
3. The shielding structure of claim 1, wherein said resilient structure comprises a spring.
4. The shielding structure of claim 1, wherein the shielding layer is provided with a shielding material comprising one or more of a metal plate, a metal mesh and a radio wave shielding film.
5. The shielding structure of claim 1, wherein the RFID tag comprises a transceiver antenna, an AC/DC circuit, a demodulation circuit, a logic control circuit, an ID memory, and a modulation circuit.
6. The RFID label shielding system is characterized by comprising an article, an article shelf and a card reader, wherein a shielding body is arranged on a contact surface of the article shelf, which is in contact with the article; the shielding body comprises two layers which are connected through an elastic structure, wherein one layer is a shielding layer, and the other layer is provided with an RFID label; when the article leaves the commodity shelf, the signal of the RFID tag is read by the card reader; when the article is placed on the commodity shelf, the card reader cannot read the signal of the RFID label.
7. The RFID tag shielding system of claim 6, wherein said resilient structure is in a compressed state when said item is placed on said shelf, said shielding layer being proximate to said RFID tag; when the article leaves the commodity shelf, the elastic structure is in an extension state, and the shielding layer is far away from the RFID label.
8. The RFID tag shielding system of claim 6, wherein the shielding layer is proximate to the RFID tag, specifically comprising: the shielding layer is in contact with the RFID tag.
9. The shielding system of claim 6, further comprising a far-field antenna disposed on the top layer of the storage rack for receiving the signal of the RFID tag and reading the signal by the reader.
10. The RFID tag shielding system of claim 6, wherein said resilient structure comprises a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020612985.4U CN212112533U (en) | 2020-04-22 | 2020-04-22 | RFID label shielding structure and shielding system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020612985.4U CN212112533U (en) | 2020-04-22 | 2020-04-22 | RFID label shielding structure and shielding system |
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| CN212112533U true CN212112533U (en) | 2020-12-08 |
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| CN202020612985.4U Active CN212112533U (en) | 2020-04-22 | 2020-04-22 | RFID label shielding structure and shielding system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112966801A (en) * | 2021-03-04 | 2021-06-15 | 江苏科睿坦电子科技有限公司 | RFID anti-tamper label, anti-tamper system and working method of system |
-
2020
- 2020-04-22 CN CN202020612985.4U patent/CN212112533U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112966801A (en) * | 2021-03-04 | 2021-06-15 | 江苏科睿坦电子科技有限公司 | RFID anti-tamper label, anti-tamper system and working method of system |
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