CN215932660U - Ultrahigh frequency omnidirectional identification passive electronic tag - Google Patents
Ultrahigh frequency omnidirectional identification passive electronic tag Download PDFInfo
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- CN215932660U CN215932660U CN202121983193.9U CN202121983193U CN215932660U CN 215932660 U CN215932660 U CN 215932660U CN 202121983193 U CN202121983193 U CN 202121983193U CN 215932660 U CN215932660 U CN 215932660U
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Abstract
The utility model relates to the technical field of washing labels, in particular to an ultrahigh frequency omnidirectional identification passive electronic label, which comprises a far-field antenna I, a far-field antenna II, a near-field antenna, an RFID chip and a label substrate, wherein the surface of the label substrate is provided with the near-field antenna, the center of the near-field antenna is provided with the RFID chip, and the RFID chip is simultaneously capacitively coupled with the far-field antenna I and the far-field antenna II.
Description
Technical Field
The utility model relates to the technical field of washing labels, in particular to an ultrahigh frequency omnidirectional identification passive electronic label.
Background
At present, hotels, hospitals, bathing places and professional washing companies are faced with the procedures of handing over, washing, ironing, finishing, storing and the like of thousands of fabrics, and by sewing passive UHF RFID washing tags in clothes for tracking and positioning, the specific position and state of each piece of clothes can be mastered, and additional information such as the use times, the replacement period and the like can be clear at a glance, so that the management work of the clothes and the like is more efficient and accurate.
In the related art, the identification distance and the identification sensitivity of the electronic tag in the forward direction are the best, that is, the reading device and the vertical central axis of the tag are overlapped, and the reading effect deviating from the forward direction is not ideal, so that a large number of articles are multi-angled, the central axis of the RFID reading device (RFID reader antenna) and each electronic tag cannot be overlapped when the electronic tag and the RFID reading device antenna are juxtaposed, and the electronic tag and the RFID reading device antenna cannot be read even if the electronic tag and the RFID reading device antenna are close to each other.
Therefore, an ultrahigh frequency omnidirectional identification passive electronic tag needs to be designed, even when an antenna of an RFID reader and the electronic tag are completely parallel, a quite good reading distance can be obtained, customized adjustment can be made according to the area size of the tag and the specific requirements of practical application, and the RFID reader is an RFID design which is simple to use.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art, provides the ultrahigh frequency omnidirectional identification passive electronic tag, can have quite good reading distance even when an RFID reader antenna and the electronic tag are completely parallel, can be customized and adjusted according to the area size of the tag and the specific requirements of practical application, and is an RFID design which is simple to use.
In order to achieve the purpose, the utility model provides an ultrahigh frequency omnidirectional identification passive electronic tag which comprises a first far-field antenna, a second far-field antenna, a near-field antenna, an RFID chip and a tag base material, wherein the surface of the tag base material is provided with the near-field antenna, the center of the near-field antenna is provided with the RFID chip, and the RFID chip is in capacitive coupling with the first far-field antenna and the second far-field antenna.
And the first far-field antenna, the second far-field antenna and the near-field antenna are not electrically connected with each other.
The near-field antenna is an aluminum film near-field antenna.
The label base material is a blended fabric or a plastic base material.
The far-field antenna I, the far-field antenna II and the near-field antenna are arranged on the same surface of the label base material.
One end of the far-field antenna II is arranged at the inner side of the far-field antenna I.
Two ends of the far-field antenna I and the far-field antenna II are respectively and symmetrically distributed along the axial direction of the near-field antenna.
The label substrate is square or rectangular in shape.
Compared with the prior art, the utility model realizes 3D omnidirectional RFID wireless data communication by simultaneously capacitively coupling two groups of far-field antennas with well matched impedance through the conventional RFID chip with 2 contacts, and can have quite good reading distance even when the RFID reader antenna and the electronic tag are completely parallel.
Drawings
Fig. 1 is a schematic plan view of the present invention.
FIG. 2 is a side view of the present invention.
Description of reference numerals: 1 is a far-field antenna I, 2 is a far-field antenna II, 3 is a near-field antenna, 4 is an RFID chip, and 5 is a label base material.
Detailed Description
The utility model will now be further described with reference to the accompanying drawings.
Referring to fig. 1 and 2, the utility model provides an ultrahigh frequency omnidirectional identification passive electronic tag, which comprises a far-field antenna I1, a far-field antenna II 2, a near-field antenna 3, an RFID chip 4 and a tag base material 5, wherein the surface of the tag base material 5 is provided with the near-field antenna 3, the center of the near-field antenna 3 is provided with the RFID chip 4, and the RFID chip 4 is in capacitive coupling with the far-field antenna I1 and the far-field antenna II 2 simultaneously.
There is no electrical connection between the first far-field antenna 1, the second far-field antenna 2 and the near-field antenna 3, respectively, and this arrangement serves to capacitively couple the RFID chip 4 on the near-field antenna 3 with the first far-field antenna 1 and the second far-field antenna 2 simultaneously.
The near-field antenna 3 is an aluminum film near-field antenna.
The label base material 5 is a blended fabric or a plastic base material, is convenient to fix on the fabric through a processing mode of hot melt adhesive or jacquard sewing, and realizes the physical tension, pressure, water resistance and chemical influence resistance of industrial washing for more than 100 times.
The far-field antenna I1, the far-field antenna II 2 and the near-field antenna 3 are arranged on the same surface of the label base material 5, and the arrangement functions to effectively form capacitive coupling and long-distance signal reading.
One end of the far-field antenna II 2 is arranged at the inner side of the far-field antenna I, and the arrangement is used for maximizing the utilization of the surface of the label base material 5 and maximizing the signal reading.
Two ends of the first far-field antenna 1 and the second far-field antenna 2 are respectively and symmetrically distributed along the axial direction of the near-field antenna 3, and the arrangement has the effect that radio frequency signals can be read in all directions.
The shape of the label substrate 5 is square or rectangular, so that the arrangement of the whole antenna is uniform, and no signal reading dead angle occurs.
When the RFID tag is manufactured, firstly, blended fabric is selected as a tag base material 5, firstly, a near field electric wire 3 is arranged on the surface of the tag base material 5, an RFID chip 3 is arranged at the central position of the near field antenna 3, the RFID chip 3 is respectively contacted with the upper surface and the inner side surface of the near field antenna 3, then a far field antenna 1 is arranged on the tag base material 5 to ensure that the central position is close to the near field antenna 3 but not contacted, then one end of a far field antenna 2 is arranged in the far field antenna 1 but not contacted, the other end of the far field antenna 2 is axially and symmetrically arranged along the near field antenna 3 but not contacted with the near field antenna 3 and the far field antenna 1, the far field antenna 1 and the far field antenna 2 are contacted with the near field antenna 3 but not contacted with each other at a short distance and keep consistent with the near field antenna 3, the peripheries of the far field antenna 1 and the far field antenna 2 form a square structure, the tag base material 5 can be arranged into a square or rectangle according to actual requirements, the design can be according to label area size, and the concrete requirement of reality application is made the customization and is adjusted, and whole device sets up like this and finishes, has realized the communication of reading of 3D omnidirectional, and is reading the ware and when electronic tags is in parallel relation immediately, also can have fairly good reading distance.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
The utility model integrally solves various problems that the existing tag cannot be read when the electronic tag and the RFID reading equipment antenna are parallel during reading, so that a large amount of missed reading is caused to cause loss, and the cost of partial products is increased by arranging a plurality of chips.
Claims (8)
1. The utility model provides an ultrahigh frequency omnidirectional identification passive electronic tags which characterized in that: the RFID tag comprises a first far-field antenna (1), a second far-field antenna (2), a near-field antenna (3), an RFID chip (4) and a tag base material (5), wherein the surface of the tag base material (5) is provided with the near-field antenna (3), the center of the near-field antenna (3) is provided with the RFID chip (4), and the RFID chip (4) is in capacitive coupling with the first far-field antenna (1) and the second far-field antenna (2) simultaneously.
2. The ultra-high frequency omnidirectional identification passive electronic tag according to claim 1, characterized in that: and the far-field antenna I (1), the far-field antenna II (2) and the near-field antenna (3) are not electrically connected with each other.
3. The ultra-high frequency omnidirectional identification passive electronic tag according to claim 1, characterized in that: the near-field antenna (3) is an aluminum film near-field antenna.
4. The ultra-high frequency omnidirectional identification passive electronic tag according to claim 1, characterized in that: the label base material (5) is a blended fabric or a plastic base material.
5. The ultra-high frequency omnidirectional identification passive electronic tag according to claim 1, characterized in that: the far-field antenna I (1), the far-field antenna II (2) and the near-field antenna (3) are arranged on the same surface of the label base material (5).
6. The ultra-high frequency omnidirectional identification passive electronic tag according to claim 1, characterized in that: one end of the far-field antenna II (2) is arranged on the inner side of the far-field antenna I.
7. The ultra-high frequency omnidirectional identification passive electronic tag according to claim 1, characterized in that: two ends of the far-field antenna I (1) and the far-field antenna II (2) are respectively and symmetrically distributed along the axial direction of the near-field antenna (3).
8. The ultra-high frequency omnidirectional identification passive electronic tag according to claim 1, characterized in that: the label substrate (5) is square or rectangular in shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121983193.9U CN215932660U (en) | 2021-08-23 | 2021-08-23 | Ultrahigh frequency omnidirectional identification passive electronic tag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121983193.9U CN215932660U (en) | 2021-08-23 | 2021-08-23 | Ultrahigh frequency omnidirectional identification passive electronic tag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215932660U true CN215932660U (en) | 2022-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121983193.9U Active CN215932660U (en) | 2021-08-23 | 2021-08-23 | Ultrahigh frequency omnidirectional identification passive electronic tag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215932660U (en) |
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2021
- 2021-08-23 CN CN202121983193.9U patent/CN215932660U/en active Active
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