CN112446454A - Passive UHF RFID washing label - Google Patents

Passive UHF RFID washing label Download PDF

Info

Publication number
CN112446454A
CN112446454A CN202011281395.9A CN202011281395A CN112446454A CN 112446454 A CN112446454 A CN 112446454A CN 202011281395 A CN202011281395 A CN 202011281395A CN 112446454 A CN112446454 A CN 112446454A
Authority
CN
China
Prior art keywords
field antenna
uhf rfid
module
passive uhf
near field
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011281395.9A
Other languages
Chinese (zh)
Inventor
陶国华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Huayuan Electronics Co ltd
Original Assignee
Shanghai Huayuan Electronics Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Huayuan Electronics Co ltd filed Critical Shanghai Huayuan Electronics Co ltd
Priority to CN202011281395.9A priority Critical patent/CN112446454A/en
Publication of CN112446454A publication Critical patent/CN112446454A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G06K19/07773—Antenna details
    • G06K19/07775—Antenna details the antenna being on-chip
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
    • G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisions for transferring data to distant stations, e.g. from a sensing device
    • G06K17/0029—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisions for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/005—Record carriers for use with machines and with at least a part designed to carry digital markings the record carrier comprising an arrangement to facilitate insertion into a holding device, e.g. an arrangement that makes the record carrier fit into an etui or a casing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/02—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the selection of materials, e.g. to avoid wear during transport through the machine
    • G06K19/027—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the selection of materials, e.g. to avoid wear during transport through the machine the material being suitable for use as a textile, e.g. woven-based RFID-like labels designed for attachment to laundry items
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07745—Mounting details of integrated circuit chips

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Details Of Aerials (AREA)

Abstract

The invention relates to a passive UHF RFID washing label, a novel module part with a key point in the middle, comprising: the UHF RFID system comprises a passive UHF RFID near-field antenna (LOOP) and a passive UHF RFID chip, wherein the near-field antenna and the chip are packaged in a module shell of a contactless semiconductor packaging module, the module shell can be patterned on blended fabric, and the UHF near-field antenna made of a pre-designed metal wire is capacitively coupled with a UHF far-field antenna at UHF working frequency to realize a remote RFID data exchange function. The technical scheme of the invention is as follows: become independent near field module through with near field antenna and chip package in the module casing, again because the module casing has high leakproofness and high strength to can show the stability that improves near field module in the use, make passive UHF RFID washing label more can adapt to washing environment such as high temperature high pressure, high distortion power, strong corrosivity, realize passive UHF RFID washing label's washing performance and life's promotion.

Description

Passive UHF RFID washing label
Technical Field
The invention relates to the technical field of washing labels, in particular to a passive UHF RFID washing 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 working principle of the passive UHF RFID washing tag is: the near field module is in electric field coupling with the far field antenna under a specific UHF frequency band, so that the reading distance with a certain length is achieved, the passive UHF RFID washing tag needs to be subjected to high-voltage industrial washing, and the near field module is not directly conducted with the far field antenna, so that the near field module can reset when external force is eliminated even if the near field module is twisted and displaced, the performance of the near field module is not influenced, and the near field module can be subjected to very large external force.
In the related art, the passive UHF RFID tag uses a non-woven fabric or a nylon fabric as a base material, a metal-encapsulated thread is sewn on the base material, and a near-field module is attached to the base material through a gluing process, wherein the structure of the near-field module in the related art includes: the QFN packaging chip is fixed on the FPC through an SMT process and then is coated and fixedly packaged with the FPC through black glue to form a COB.
Due to the facts that the QFN packaging chip is fixed through the SMT process, the QFN packaging chip and the FPC are fixedly packaged through the black glue coating process, the COB is attached to the base material through the viscose process and the like, the passive UHF RFID washing label manufactured through the method cannot normally work easily due to the fact that any connecting part falls off during washing application, and the product consistency and stability are poor.
Disclosure of Invention
The invention aims to provide a passive UHF RFID washing label, which encapsulates a near-field antenna and a chip in a module shell and has more stable performance.
In order to achieve the purpose, the invention adopts the following technical scheme: a passive UHF RFID washing tag, comprising: a near field antenna;
the chip is electrically connected with the near field antenna;
and the near field antenna and the chip are packaged in the module shell.
Preferably, two ends of the near-field antenna are respectively connected with the chip, and the near-field antenna and the chip form a closed loop.
Preferably, the near field antennas are symmetrically arranged, and the chips are arranged on a symmetry axis of the near field antennas.
Preferably, the module shell is square, the side length range is 3.0-3.6mm, and the thickness range is 0.7-0.9 mm.
Preferably, the module housing has a side length of 3.51mm and a thickness of 0.78 mm.
Preferably, the passive UHF RFID washing tag further comprises a fabric and a far field antenna connected to and disposed on the fabric, the module housing is disposed in the middle of the far field antenna, and the near field antenna and the far field antenna operate by inductive coupling of Ultra High Frequency (UHF).
Preferably, the module case is disposed at a middle position of the fabric, and the far-field antenna is surrounded outside the module case.
Preferably, the fabric is provided in two layers arranged one on top of the other, with the far field antenna being provided between the two layers of the fabric, or the fabric is provided in one layer, with the far field antenna being provided on the fabric.
Preferably, the far field antenna is made of 180-250 strands of stainless steel wire.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the technical scheme, the provided passive UHF RFID washing tag is formed by completely encapsulating the near field antenna and the chip in the module shell to form an independent near field module, and the module shell has high leakproofness and high strength, so that the stability of the near field module can be obviously improved, the passive UHF RFID washing tag can be more suitable for washing environments such as high temperature, high pressure, high distortion force and strong corrosivity, and the washing performance and the service life of the passive UHF RFID washing tag are improved.
2. The near field module all reduces in thickness and width to make the whole appearance of passive UHF RFID washing label correspondingly diminish, hide more easily, thereby promote the comfort level of user when using.
3. The passive UHF RFID washing tag in the related technology has the advantages that the number of product processes is large, the production period of products is long, the cost is high, the industrial popularization and application are seriously restricted, the near field antenna and the chip are directly packaged in the module shell, the production process is simplified, the near field module can be produced automatically, the production cost is reduced, the production speed is improved, and the applicability is better.
Drawings
Fig. 1 is a first schematic diagram of the interior of a module housing according to an embodiment of the present invention.
Fig. 2 is a second schematic diagram of the interior of the module housing according to the embodiment of the invention.
Fig. 3 is a top view of a module housing in an embodiment of the invention.
Fig. 4 is a front view of a module housing in an embodiment of the invention.
FIG. 5 is an exploded view of a passive UHF RFID wash tag in an embodiment of the present invention.
In the figure: 1. a near field antenna; 11. an arc segment body; 12. a square segment body; 13. a linear segment; 2. a chip; 3. a module housing; 4. a fabric; 5. a far field antenna.
Detailed Description
The present invention will now be described in more detail with reference to the accompanying drawings, in which the description of the invention is given by way of illustration and not of limitation. The various embodiments may be combined with each other to form other embodiments not shown in the following description.
Referring to fig. 5, the embodiment of the present invention provides a new structure design of a passive UHF RFID washing tag, including a near field antenna 1, a chip 2, a module housing 3, a fabric 4, a far field antenna 5, and a hot melt adhesive. The fabric 4 is preferably white and may be a blended fabric of cotton and chemical fibers, the far-field antenna 5 is fixed on the fabric 4 by jacquard or weaving or hot glue, and another layer of blended fabric is compounded to protect the far-field antenna 5 between two layers of the fabric 4, and the far-field antenna 5 is formed by laser cutting to ensure that the parts of the far-field antenna 5 at two ends of the fabric 4 are not exposed, the module housing 3 is arranged in the middle of the far-field antenna 4, preferably, the module housing 3 is arranged in the middle of the fabric 4, and the far-field antenna 5 surrounds the module housing 3, so that the signal receiving of the passive UHF RFID washing tag is stable in use. In this embodiment, a hot melt adhesive is coated between two layers of the fabric 4, and the far-field antenna 5 and the module housing 3 are both wrapped in the hot melt adhesive to prevent displacement under the action of external force, so as to ensure stable signal reception when the passive UHF RFID washing tag is used, and simultaneously, the passive UHF RFID washing tag is made to be resistant to corrosion of chemicals and detergents, and is waterproof, and high-temperature washing and high-temperature ironing are prevented.
Referring to fig. 1-4, the module housing 3 is made of a high-performance EMC epoxy material, the near field antenna 1 and the chip 2 are packaged in the module housing 3 to form an independent near field module, and the high-performance EMC epoxy material has high sealing performance and high strength, so that the stability of the near field module can be significantly improved, and the module housing 3 is guaranteed not to be broken or deformed in the using process. The two connection points of the chip 2 are electrically connected with the near-field antenna 1, form a closed loop and can work under UHF frequency. No electrical connection pads are present outside the module housing 3, and the near field module itself already has the read-write functionality of an RFID (at a distance of 5mm, 30dbm power). The near field antenna 1 adopts a gold-plated copper conductor and is attached to a frame in the module, the chip 2 is various UHF RFID chips which conform to ISO1800-6 international ultrahigh frequency, the near field module and the far field antenna 5 must work together to realize various functional requirements of the passive UHF RFID washing tag, the near field module is coupled with the far field antenna 5 in an electric field of an external UHF 860-960MHz frequency band, so that the reading distance of 7 meters or more is achieved, the chip is activated under the UHF ultrahigh frequency to realize various data exchange functions of the UHF RFID chip, and the purpose of remote data communication is realized.
Because the near field antenna 1 and the chip 2 are all packaged in the module housing 3, and because the module housing 3 has high airtightness and high strength, the stability of the near field module is greatly improved, so that the passive UHF RFID washing tag can be more suitable for environments with high pressure and distortion force, and specifically, the storage temperature range of the passive UHF RFID washing tag is-20 ℃ to +120 ℃ (-40 ° F to +248 ° F); the washing bearing temperature can reach 90 ℃ (194 DEG F), and the washing time under the temperature condition can reach 15 min; the high-temperature drying bearing temperature can reach 160 ℃ (320 DEG F), and the drying time under the temperature condition can reach 3 min; the ironing bearing temperature can be as high as 150 ℃ (302 DEG F), and the ironing time under the condition of the temperature can be 12 seconds; the high-pressure dehydration bearing pressure can reach 60bars, and the dehydration time under the pressure condition can reach 80 seconds; can withstand all chemical solvents and detergents in normal industrial washing procedures, has a service life and quality guarantee of 200 industrial washing times or 2 years (calculated by first-arrival), and passes SGS test and obtains test reports.
Meanwhile, the near field antenna 1 and the chip 2 are directly packaged in the module shell 3, so that the production process of the passive UHF RFID washing tag is simplified, the near field module can be produced automatically, the production cost of the passive UHF RFID washing tag is reduced by about 20% compared with that of the passive UHF RFID washing tag in the related technology, and the production speed is improved by about 30%.
As a preferred embodiment, the near field antenna 1 is symmetrically disposed, and the chip 2 is disposed on a symmetry axis of the near field antenna 1.
The shape of the near field antenna 1 may be set in various forms, specifically, please refer to fig. 1, in some embodiments, two ends of the near field antenna 1 are respectively connected to the chip 2, and the near field antenna 1 is bent into a square shape, please refer to fig. 2, in other embodiments, the near field antenna 1 includes two arc-shaped segment bodies 11, a square-shaped segment body 12, and two linear segment bodies 13, the two arc-shaped segment bodies 11 are correspondingly disposed on two sides of the chip 2, the square-shaped segment body 12 has an opening and is disposed outside the chip 2 and the two arc-shaped segment bodies 11, and the linear segment body 13 is connected to one end of the arc-shaped segment body 11 away from the chip 2 and one end of the square-shaped segment body 12.
The module of the design can be adjusted to various similar internal packaging according to the size and the functional requirements of the washing label, the two are linear designs of the conventional near field antenna, and the module structure and the linear design of the near field antenna can be changed.
Preferably, the module housing 3 is square, with a side length ranging from 3.0 to 3.6mm and a thickness ranging from 0.7 to 0.9 mm. Further, the module housing 3 has an optimal side length of 3.51mm and an optimal thickness of 0.8 mm. The passive UHF RFID wash tag may be 70x15x1.2mm in size, each weighing about 0.5 grams. In addition, the independent near field module has good universality, is suitable for passive UHF RFID washing labels with various dimensions and specifications, and is also suitable for silica gel-packaged passive UHF RFID washing labels.
In order to further enhance the stability of the passive UHF RFID washing tag, the far-field antenna 5 is made of 180-250 strands of stainless steel wires to avoid corrosion of chemicals during washing, high-temperature oxidation and corrosion, and strong mechanical impact such as mechanical friction, stretching, bending, and crumpling during washing, and preferably, the far-field antenna 5 is made of 200 strands of stainless steel wires, which is 50% higher than that of similar products in the market.
The passive UHF RFID washing tag can be installed in various modes such as sewing, blanching, hanging and the like, has stable and reliable remote reading and group reading functions, can be widely applied to the fields of industrial washing management, linen lease management, uniform management and washing management, work clothes lease and washing management, hotel linen and washing management, hospital linen and washing management, military clothing management, railway linen management and washing management, police clothing management, personnel management, fire-fighting clothing and soft material management, access control management, other industries needing soft and pressure resistance and the like, and has good applicability.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims (9)

1. A passive UHF RFID wash tag, comprising:
a near field antenna (1);
the chip (2) is electrically connected with the near-field antenna (1);
a module housing (3), the near field antenna (1) and the chip (2) being encapsulated in the module housing (3).
2. The passive UHF RFID wash tag of claim 1, wherein the chip (2) is connected to both ends of the near field antenna (1), and the near field antenna (1) and the chip (2) form a closed loop.
3. The passive UHF RFID wash tag of claim 1, wherein the near field antenna (1) is symmetrically disposed, and the chip (2) is disposed on a symmetry axis of the near field antenna (1).
4. The passive UHF RFID wash tag of claim 1, wherein the module housing (3) is square with sides ranging from 3.0-3.6mm in length and a thickness ranging from 0.7-0.9 mm.
5. The passive UHF RFID wash tag of claim 1, wherein the module housing (3) has a side length of 3.51mm and a thickness of 0.78 mm.
6. The passive UHF RFID wash tag of any of claims 1 to 5, characterized in that the passive UHF RFID wash tag further comprises a fabric (4) and a far field antenna (5) connectively disposed on the fabric (4), the module housing (3) being disposed in the middle of the far field antenna (4), the near field antenna (1) being coupled with the far field antenna (5).
7. The passive UHF RFID wash tag of claim 6, characterized in that the module housing (3) is arranged in a middle position of the fabric (4) and the far field antenna (5) is wrapped around the outside of the module housing (3).
8. The passive UHF RFID wash tag of claim 6, wherein the fabric (4) is arranged in two layers arranged one on top of the other, the far field antenna (5) being arranged between the two layers of fabric (4), or wherein the fabric (4) is arranged in one layer, the far field antenna (5) being arranged on the fabric (4).
9. The passive UHF RFID wash tag of claim 6, wherein the far field antenna (5) is made of 180 and 250 strands of stainless steel wire.
CN202011281395.9A 2020-11-16 2020-11-16 Passive UHF RFID washing label Pending CN112446454A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011281395.9A CN112446454A (en) 2020-11-16 2020-11-16 Passive UHF RFID washing label

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011281395.9A CN112446454A (en) 2020-11-16 2020-11-16 Passive UHF RFID washing label

Publications (1)

Publication Number Publication Date
CN112446454A true CN112446454A (en) 2021-03-05

Family

ID=74738763

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011281395.9A Pending CN112446454A (en) 2020-11-16 2020-11-16 Passive UHF RFID washing label

Country Status (1)

Country Link
CN (1) CN112446454A (en)

Similar Documents

Publication Publication Date Title
US9818056B2 (en) Robust washable tags using a large area antenna conductor
KR101781439B1 (en) Washable rfid device for apparel tracking
US20070152072A1 (en) Ic card with improved plated module
JP5718123B2 (en) RFID tag
EP2405054B1 (en) Textile item identification tag
CN207426161U (en) Wireless telecom equipment and the article for installing the wireless telecom equipment
JP2013222411A (en) Rfid tag
CN101361083A (en) Tubular container enabling individual identification
CN214151750U (en) Passive UHF RFID washing label
CN103514474A (en) Thin-antenna separated ultra-high-frequency intelligent tag
CN112446454A (en) Passive UHF RFID washing label
CN107392287B (en) UHF RFID tag for laundry management and manufacturing method
US20150206043A1 (en) Structure of textile
EP3639204B1 (en) Rfid tag for harsh environment inductively coupled in double loop
CN215987358U (en) RFID silicon rubber washing label
CN210222788U (en) Washable silica gel electronic tag capable of being sewn
WO2006080615A1 (en) Eyelet for radio frequency identification and method for manufacturing the eyelet
CN216647386U (en) Novel passive ultrahigh frequency radio frequency washing label
CN113537434A (en) RFID silicon rubber washing label
CN113592052A (en) Novel passive ultrahigh frequency radio frequency washing label
CN103514475A (en) Thick antenna discrete ultrahigh frequency intelligent label
CN116956969A (en) Non-substrate passive ultrahigh-frequency washing-resistant electronic tag
CN207249709U (en) It is a kind of to be used for the UHF RFID tags managed of doing washing
CN207250712U (en) A kind of integrated chip
CN110378452A (en) One kind is water-fastness to sew silica gel electronic tag and preparation method thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination