CN101140634A - RFID wash clothes label and antenna matching property design method thereof - Google Patents
RFID wash clothes label and antenna matching property design method thereof Download PDFInfo
- Publication number
- CN101140634A CN101140634A CNA2007100474370A CN200710047437A CN101140634A CN 101140634 A CN101140634 A CN 101140634A CN A2007100474370 A CNA2007100474370 A CN A2007100474370A CN 200710047437 A CN200710047437 A CN 200710047437A CN 101140634 A CN101140634 A CN 101140634A
- Authority
- CN
- China
- Prior art keywords
- antenna
- resistant
- environment
- temperature
- laundry
- 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.)
- Granted
Links
Images
Abstract
The invention provides a RFID laundry tag as well as a relevant antenna matching design method; wherein, the tag comprises a waterproof, fire-resistant and environmental-protection front face material, the first layer of waterproof fire-resistant adhesive agent, a laundry environment matching antenna, an anti-corrosion antenna carrier layer, the second layer of waterproof fire-resistant adhesive agent, a waterproof, fire-resistant and environmental-protection back face material, and a chip; the tag is characterized in high mechanical strength, fire-resistance, waterproof and anti-soaking, and chemical corrosion resistance. The invention can: 1. Lower garment category time and reduce complicated operation; 2. No contradiction happens between clients and laundry shops due to garment loss; 3. Laundry shops can automatically communicate with clients for information, and provide other services with higher added-value and etc.
Description
Technical Field
The invention relates to an RFID tag, in particular to an RFID laundry tag and an antenna matching design method thereof.
Background
The problems faced by the laundry industry at present are: 1. the clothes classification needs a lot of time, and the complexity of operation is increased; 2. customers and laundries sometimes create contradictions for the loss of clothes; 3. the laundromat and the customer cannot automatically exchange information, and it is difficult to provide other services having high added value, and the like. The application range of the RFID label in China is wider and wider, but at present, no paper RFID label which can be applied to the laundry industry and is resistant to high temperature and water soaking exists.
Disclosure of Invention
The invention aims to meet the special requirements of the laundry industry, and designs an RFID laundry label which is resistant to high mechanical strength, high temperature, water immersion and chemical corrosion and low in cost.
In order to achieve the purpose, the invention provides an RFID laundry tag and an antenna matching design method thereof.
The RFID laundry label is characterized by comprising a waterproof high-temperature-resistant environment-friendly front surface material, a first layer of waterproof high-temperature-resistant adhesive, a laundry environment-matched antenna, a corrosion-resistant antenna carrier layer, a second layer of waterproof high-temperature-resistant adhesive, a waterproof high-temperature-resistant environment-friendly back surface material and a chip;
the antenna matched with the laundry environment is carried on the front surface of the corrosion-resistant antenna carrier layer;
the chip is packaged on the front surface of the antenna matched with the laundry environment;
the back surface of the water-resistant, high-temperature-resistant and environment-friendly front surface material is adhered to the front surface of the antenna matched with a laundry environment through a first layer of temperature-resistant and water-resistant adhesive;
the front surface of the waterproof, high-temperature-resistant and environment-friendly back surface material is bonded with the back surface of the corrosion-resistant antenna carrier layer through a second layer of temperature-resistant and water-resistant adhesive.
The waterproof high-temperature-resistant environment-friendly front surface material and the waterproof high-temperature-resistant environment-friendly back surface material are synthetic paper manufactured by calcium carbonate and non-toxic resin in an instant high-pressure sealing mode.
The first layer of water-resistant and high-temperature-resistant adhesive and the second layer of water-resistant and high-temperature-resistant adhesive adopt transparent acrylic acid type pure adhesive films.
The corrosion-resistant antenna carrier layer is made of a polyester film.
The antenna matched with the laundry environment comprises a first loop connecting point, a second loop connecting point, a loop connecting line, a reading and positioning mark, an antenna coil, a first chip connecting point and a second chip connecting point;
the first loop connecting point is the starting point of an antenna coil of the antenna matched with the laundry environment, is positioned in the middle of the antenna coil and is circular;
the second loop connecting point is an antenna coil terminal point of the antenna matched with the laundry environment, is positioned at the lower left corner of the antenna coil and forms a triangle;
the loop connecting line is positioned on the back of the corrosion-resistant antenna carrier layer, and two ends of the loop connecting line penetrate through the corrosion-resistant antenna carrier layer and are respectively connected with the first loop connecting point and the second loop connecting point;
the reading positioning mark is positioned in the middle of the antenna coil and is square;
the antenna coil is formed into a plurality of circles of irregular rectangles, and two points of the coil at the lower left corner of the antenna coil are connected by oblique lines;
the first chip connection point and the second chip connection point are positioned in the middle of the antenna coil and are used for connecting a chip packaged on the antenna matched with the washing environment.
The antenna matching design method of the RFID laundry tag is characterized by comprising the following steps:
step 1: performing washing environment recognition distance matching design on the antenna;
and 2, step: performing a laundry environment reading temperature matching test on the antenna;
and 3, step 3: the frequency of the antenna is tested.
The step 1 comprises the following steps:
step 1.1: the design of the inductance of the antenna and the capacitance in the chip form a resonant frequency, and the deviation of the upper frequency and the lower frequency is tested in a sample test within the range of 1Mhz because the working frequency of a reader-writer is taken as a design target;
step 1.2: the energy loss caused by the internal resistance of the antenna is reduced.
The step 1.2 comprises the following steps:
step 1.2.1: selecting aluminum as an antenna substrate, wherein the conductivity of the aluminum is 100 times smaller than that of the conductive ink;
step 1.2.2: widening the conducting wire within the area range of the antenna coil without changing the inductance of the antenna;
step 1.2.3: the number of the conductive coils is increased within the area range of the antenna coil without changing the inductance of the antenna;
step 1.2.4: the length of the conducting wire is increased within the area range of the antenna coil under the condition of not changing the antenna inductance.
The step 2 comprises the following steps:
step 2.1: testing the inductance value of the actually measured antenna at normal temperature;
step 2.2: testing the change of inductance value at the measured temperature slightly higher than the temperature required by the laundry environment;
the temperature required by the clothes washing environment is less than or equal to 60 ℃, and the actually measured temperature is increased to about 70 ℃;
step 2.3: comparing the inductance value in the step 2.1 with that in the step 2.2, if the inductance value is not obviously changed, the antenna design meets the requirement of the laundry environment on the temperature; if not, adjusting the step 1.2.
The step 3 comprises the following steps:
step 3.1: calculating a quality factor value;
step 3.2: calculating the upper and lower band boundaries;
step 3.3: calculating whether the working frequency of the reader-writer falls within the upper bound and the lower bound of the frequency band of the reader-writer according to the step 3.2, if so, indicating that the antenna design meets the requirement of the washing environment on the working frequency; if not, the adjustment is carried out in the step 1.2.
The invention has the following advantages:
1. the time for classifying the clothes is reduced and the tedious operation is reduced;
2. the customer and the laundry do not need to lose clothes to cause contradiction;
3. the laundry and the customer can automatically exchange information, other services with high added value can be provided, and the like.
Drawings
FIG. 1 is a cross-sectional view of an RFID laundry tag;
FIG. 2 is a side view of an RFID laundry tag;
fig. 3 is a top view of an antenna of the RFID laundry tag.
Detailed Description
A preferred embodiment of the present invention is described in detail below:
the invention provides an RFID laundry label and an antenna matching design method thereof.
Referring to fig. 1, in the cross-sectional view of the embodiment, the length of the tag is 145mm, the width of the tag is 21-22mm, the length of the Inlay (the antenna of the packaged chip is called Inlay) is 78.7mm, the width of the Inlay is 17mm, the length of the antenna of the outermost turn is 50mm, and the width of the antenna of the outermost turn is 15mm.
Referring to fig. 2, the RFID laundry label is characterized by comprising a water-resistant, high-temperature-resistant and environment-friendly front surface material 1, a first layer of water-resistant, high-temperature-resistant adhesive 2, a laundry environment-matched antenna 3, a corrosion-resistant antenna carrier layer 4, a second layer of water-resistant, high-temperature-resistant adhesive 5, a water-resistant, high-temperature-resistant and environment-friendly back surface material 6, and a chip 7;
the antenna 3 matched with the laundry environment is carried on the front surface of the corrosion-resistant antenna carrier layer 4;
the chip 7 is packaged on the front surface of the antenna 3 matched with the washing environment. The invention selects a domestic chip Berlin BL75R04SM which is a 2Kbit electronic tag chip complying with an ISO/IEC15693 wireless interface. The product can be made into electronic label or non-contact card, and is mainly suitable for large and medium logistics, commodity anti-theft and anti-counterfeiting, industrial control, access control system, military tracking, road and bridge charging, livestock breeding, book document management, special equipment, financial bill and other fields. Possesses the anticollision function, and a plurality of chips can be handled simultaneously fast to the read write line. The on-chip 2K-bit E2PROM is divided into 64 blocks, each block is provided with a data storage area with 4 bytes, a block latching area with 2 bits, a management storage area 2 blocks and a 64-bit marking code which is unique globally.
The chip is characterized in that:
-wireless data transmission and energy supply
-the radio frequency interface fully complies with the ISO15693 standard
-operating frequency: 13.56MHz
-read-write distance: can reach 60cm
-data transmission rate: 26.5Kbit/s
-data verification mode: 16 bit CRC check
Anti-collision function, with a recognition rate of 50 cards per second
-supporting application type identification (AFI)
-2 kbits EEPROM (available to the user), divided into 64 blocks in total, each block having 4 bytes, i.e. 32 bits
Support for multi-block data read, single-block and double-block data write
-data retention time > =10 years
Number of reads and writes up to > =10 ten thousand times
-each tag has a unique serial number for identification
Each block provides two write protection bits (UL, FL) for user and manufacturer locking, respectively, once the data is locked it cannot be modified any more.
The back surface of the water-resistant, high-temperature-resistant and environment-friendly front surface material 1 is adhered to the front surface of an antenna 3 matched with a laundry environment through a first layer of temperature-resistant and water-resistant adhesive 2;
the front surface of the waterproof high-temperature-resistant environment-friendly back surface material 6 is adhered to the back surface of the corrosion-resistant antenna carrier layer 4 through a second layer of temperature-resistant and water-resistant adhesive 5.
The waterproof high-temperature-resistant environment-friendly front surface material 1 and the waterproof high-temperature-resistant environment-friendly back surface material 6 are made of synthetic paper made of calcium carbonate and non-toxic resin in an instant high-pressure sealing mode. The invention selects a novel environment-friendly paper, PP synthetic paper for short. The PP synthetic paper has the characteristics of common paper: the environment-friendly plastic can be printed and printed, is degradable, has the advantages of plastics, such as better whiteness, glossiness and light resistance, high strength, temperature resistance, water soaking resistance, oil and grease corrosion resistance, insect damage resistance, folding resistance, stable size, thermal plasticity and the like, does not have hair falling phenomenon like natural paper, does not generate dust, meets the requirement of the American food and drug administration, and is very suitable for the requirements of cleanness, no dust and the like of the laundry industry.
The first layer of water-resistant and high-temperature-resistant adhesive 2 and the second layer of water-resistant and high-temperature-resistant adhesive 5 are transparent acrylic acid type pure glue films. The invention selects the 3M 467MP type double faced adhesive tape, has the characteristics of high viscosity, environmental protection, and has the main advantages of high temperature resistance, no embrittlement, water immersion resistance, no decomposition, good sealing property, no adhesive release, small dielectric loss, and is very suitable for the use environment condition of labels in the laundry industry.
The material that corrosion-resistant antenna carrier layer 4 adopted is polyester film (PET), the advantage of this material: light weight, beautiful appearance, corrosion resistance, sealing, convenient environmental protection and recovery, etc.
Referring to fig. 3, the antenna 3 matched to the laundry environment includes a first loop connection point 31, a second loop connection point 32, a loop connection line (not shown), a reading positioning mark 34, an antenna coil 35, a first chip connection point 36, and a second chip connection point 37;
the first loop connecting point 31 is the starting point of an antenna coil 35 of the antenna 3 matched with the laundry environment, is positioned in the middle of the antenna coil 35 and is circular;
the second loop connection point 32 is the terminal point of an antenna coil 35 of the antenna 3 matched with the laundry environment, is positioned at the lower left corner of the antenna coil 35 and forms a triangle;
the loop connecting line is positioned on the back of the corrosion-resistant antenna carrier layer 4, and two ends of the loop connecting line penetrate through the corrosion-resistant antenna carrier layer 4 and are respectively connected with a first loop connecting point 31 and a second loop connecting point 32;
the reading positioning mark 34 is positioned in the middle of the antenna coil 35 and is square;
the antenna coil 35 is in a shape of a plurality of irregular rectangles, and two points of the coil at the lower left corner are connected by oblique lines;
the first chip connection point 36 and the second chip connection point 37 are located in the middle of the antenna coil 35 for connecting the chip 7 packaged on the antenna 3 matched with the laundry environment.
The antenna matching design method of the RFID laundry tag is characterized by comprising the following steps:
step 1: performing washing environment recognition distance matching design on the antenna;
and 2, step: performing a laundry environment reading temperature matching test on the antenna;
and step 3: the frequency of the antenna is tested.
The step 1 comprises the following steps:
step 1.1: the design of the inductance of the antenna and the capacitance in the chip form a resonant frequency, and the deviation of the upper frequency and the lower frequency is tested in a sample test within the range of 1Mhz because the working frequency of a reader-writer is taken as a design target;
step 1.2: the energy loss caused by the internal resistance of the antenna is reduced.
Step 1.2.1: selecting aluminum as an antenna substrate, wherein the conductivity of the aluminum is 100 times smaller than that of the conductive ink; the aluminum antenna has higher quality factor (Q value), namely, the sensitivity is higher when the card is swiped, the reading and writing distance of the label is longer, and the aluminum antenna is suitable for the operation rhythm and environment of the laundry industry;
step 1.2.2: widening the conducting wire within the area range of the antenna coil without changing the inductance of the antenna;
step 1.2.3: the number of the conductive coils is increased within the area range of the antenna coil without changing the inductance of the antenna;
step 1.2.4: the length of the conducting wire is increased within the area range of the antenna coil under the condition of not changing the antenna inductance.
The step 2 comprises the following steps:
step 2.1: testing the inductance value of the actually measured antenna at normal temperature;
step 2.2: testing the change of inductance value at the measured temperature slightly higher than the temperature required by the laundry environment;
the temperature required by the clothes washing environment in the step 2.2 is less than or equal to 60 ℃, and the actually measured temperature is increased to about 70 ℃;
step 2.3: comparing the inductance value in the step 2.1 with that in the step 2.2, if the inductance value is not obviously changed, the antenna design meets the requirement of the laundry environment on the temperature; if not, adjusting the step 1.2.
The step 3 comprises the following steps:
step 3.1: calculating a quality factor value;
step 3.2: calculating the upper and lower band boundaries;
step 3.3: calculating whether the working frequency of the reader-writer falls within the upper bound and the lower bound of the frequency band of the reader-writer according to the step 3.2, if so, indicating that the antenna design meets the requirement of the washing environment on the working frequency; if not, the adjustment is carried out in the step 1.2.
The following is a specific example analysis for the above steps:
(1) factors of reading distance
The reduction of the magnetic permeability of the high humidity air leads to the reduction of the mutual inductance, thereby causing the problem of shortening the reading and writing distance.
Since the magnetic permeability of high-humidity air is between air and water (μ r = 0.99991), the influence on the self-inductance amount is negligible. The mutual inductance is affected, the resonance frequency drifts, and finally the action distance is shortened. Because the application environment requires the label to have a medium action distance, but the action distance is shortened by the medium action of high-humidity air, therefore, the antenna should be designed in consideration of the high-humidity environment as much as possible:
(1) -1, the best antenna inductance matches the resonance of the chip.
The working frequency of the reader-writer selected by the invention is 13.56Mhz, and the device consisting of the antenna and the chip can obtain the optimal reading distance under the frequency, so that the inductance design of the antenna and the capacitance in the chip form a resonant frequency, and the deviation of the upper frequency and the lower frequency is tested in a sample test within the range of 1Mhz because the resonant frequency is designed by taking 13.56Mhz as a target.
(1) And 2, reducing energy loss caused by the internal resistance of the antenna within the allowable range of the process.
The antenna manufacturing process selects an etching process, aluminum is selected as an antenna base material, the conductivity of the aluminum is 100 times smaller than that of conductive ink, the price is moderate, and the optimal design effect can be achieved. Under the condition of not changing the inductance of the antenna, the conducting wire is widened as much as possible within the limited area range of the antenna coil, the number of turns of the conducting wire is increased, and the length is increased, so that the resistance R of the antenna coil is reduced, the quality factor of the coil is improved, and the requirement of the acting distance of the label is ensured.
(2) Temperature factor of reading
Inductance L =5.7 +/-1% muH of the antenna is actually measured at normal temperature. Resonant frequency f 0 Is 13.75MHz
The environment temperature for reading and writing the label in practical use is not higher than 60 ℃. Therefore, the inductance measured at 70 ℃ is: l =5.7 ± 1% μ H, with no significant change in inductance.
(3) Frequency factor of antenna
Chip capacitor and antennaThe line inductance and the resonant frequency satisfy the mathematical relation:
the frequency deviation range caused by the dispersion of the chip capacitance and antenna inductance parameters is as follows:
f 0max ＝14.18MHz f 0min ＝13.35MHz
q value estimation and bandwidth:
the direct current resistance R =2.8 Ω, the alternating current resistance R is about 5 times as large as the direct current resistance R according to experience, the alternating current resistance R =14 Ω,
according to
The following are obtained by calculation: q is less than or equal to 20
Available from B =2 Δ f =3.1 f0/Q: Δ f =1.06MHz
The lower bound of the bandwidth is f when the frequency offset is highest 0 -ΔF＝13.12MHz
The upper bound of the bandwidth is f at the lowest frequency offset 0 +Δf＝14.41MHz
The working frequency of 13.56MHz falls in the bandwidth, and the requirement of the product is met.
The washing label process flow comprises the following steps:
1) The final assembly process flow of the finished product is as follows:
2) The manufacturing process of the etching antenna comprises the following steps: the technique of gravure pattern etching method of aluminum foil and PET material is adopted.
The product was manufactured by Shanghai England electronic tags, inc. The process flow comprises the following steps:
double-sided aluminum foil covering of PET (polyethylene terephthalate) film, unreeling, cleaning, printing of anti-corrosion ink (double layers), drying, etching, cleaning and drying of anti-corrosion ink, breakdown of upper and lower layer connecting points, rewinding
3) The packaging process comprises the following steps: the antenna and chip are combined by adopting a German MBAL100Flip chip Flip-chip technology and a conductive adhesive of Dell AC 163. The process comprises the following steps:
etching a PET antenna, unreeling, scraping conductive adhesive, installing a chip, hot pressing, detecting, cutting, and receiving materials
4) Label bonding: a germany bielastic high-speed automatic RFID label laminator. The process comprises the following steps:
cutting a single coil of etched antenna and front and back PP synthetic paper, discharging, threading, attaching, detecting and receiving
5) And (3) label die cutting: HSM-320 die cutting equipment
Roll-shaped finished product-threading tape-die cutting-receiving
6) And (6) inspecting and packaging.
Product test results and analysis:
1) Physical Properties
| Sampling number 10pcs | ||
| Serial number | Test item | Index (es) |
| 1 | Thickness of label | 0.4mm-0.5 |
| 2 | Size of label | 145×21-22mm |
| 3 | Temperature resistance | The coating does not crack and fall off glue in an oven at 150 ℃ for 5 minutes |
| 4 | Boiling water resistance | Soaking in boiling water for 15 min without cracking and degumming |
| 5 | Water-proof property | The water is soaked for 24 hours without cracking and degumming, |
| 6 | opacity | No INLAY was visible without clear illumination. |
| 7 | INLAY position | 10mm from one end of the long side of the label, and 2-2.5mm from the edge of the short side respectively. |
| 8 | Quality of edge bonding | The edge is jointed without glue leakage and cracking. |
| 9 | Storage capacity | 2Kbit |
2) Electrical Properties
| The sampling number is: 24pcs | ||
| Recognition distance (cm) Power in reader/writer of Alford corporation | Resonance frequency (MHz) | |
| Mean value of | 24.5 | 13.77 |
| Maximum value | 30 | 14.18 |
| Minimum value of | 20 | 13.35 |
R＝3Ω±0.5Ω
Q＝50±5
L＝5.7uH±0.2uH
F＝13.35MHz～14.18MHz
Reading and writing distance: 20-30cm
And (3) testing temperature resistance: the oven is heated to 150 ℃ for 5 minutes without cracking, and the reading distance before the test is the same as that after the test.
Boiling water resistance test: boiling water at 100 ℃ for 15 minutes without cracking, and the reading distance before the test is the same as that after the test.
And (3) waterproof testing: the test piece is soaked in water for 24 hours without cracking, and the reading distance before the test is the same as that after the test.
And (3) analyzing a test result: each performance parameter meets the design technical requirements, and the sample passes the test of Japanese customers.
The product of the invention is tested and applied in a small amount on an applied system, and completely meets the application requirement.
The invention provides an RFID laundry tag and an antenna matching property design method thereof. The invention can: 1. the time for classifying the clothes is reduced and the tedious operation is reduced; 2. the customer and the laundry do not need to lose clothes to cause contradiction; 3. the laundry and the customer can automatically exchange information, other services with high added value can be provided, and the like.
Claims (10)
1. An RFID laundry tag, comprising:
the fabric comprises a waterproof high-temperature-resistant environment-friendly front surface material (1), a first layer of waterproof high-temperature-resistant adhesive (2), an antenna (3) matched with a laundry environment, a corrosion-resistant antenna carrier layer (4), a second layer of waterproof high-temperature-resistant adhesive (5), a waterproof high-temperature-resistant environment-friendly back surface material (6) and a chip (7);
the antenna (3) matched with the laundry environment is carried on the front surface of the corrosion-resistant antenna carrier layer (4);
the chip (7) is packaged on the front surface of the antenna (3) matched with the laundry environment;
the back surface of the water-resistant, temperature-resistant and environment-friendly front surface material (1) is adhered to the front surface of the antenna (3) matched with a laundry environment through a first layer of temperature-resistant, water-resistant and adhesive (2);
the front surface of the water-resistant, temperature-resistant and environment-friendly back surface material (6) is adhered to the back surface of the corrosion-resistant antenna carrier layer (4) through a second layer of temperature-resistant, water-resistant adhesive (5).
2. The RFID laundry tag of claim 1, wherein:
the waterproof high-temperature-resistant environment-friendly front surface material (1) and the waterproof high-temperature-resistant environment-friendly back surface material (6) are made of synthetic paper made of calcium carbonate and non-toxic resin in an instant high-pressure sealing mode.
3. The RFID laundry tag of claim 1, wherein:
the first layer of water-resistant and high-temperature-resistant adhesive (2) and the second layer of water-resistant and high-temperature-resistant adhesive (5) adopt transparent acrylic acid type pure adhesive films.
4. The RFID laundry tag of claim 1, wherein:
the corrosion-resistant antenna carrier layer (4) is made of a polyester film.
5. The RFID laundry tag of claim 1, wherein:
the antenna (3) matched with the laundry environment comprises a first loop connecting point (31), a second loop connecting point (32), a loop connecting line, a reading positioning mark (34), an antenna coil (35), a first chip connecting point (36) and a second chip connecting point (37);
the first loop connecting point (31) is the starting point of an antenna coil (35) of the antenna (3) matched with the laundry environment, is positioned in the middle of the antenna coil (35), and is circular;
the second loop connecting point (32) is the terminal point of an antenna coil (35) of the antenna (3) matched with the laundry environment, is positioned at the lower left corner of the antenna coil (35), and is triangular;
the loop connecting line is positioned on the back of the corrosion-resistant antenna carrier layer (4), and two ends of the loop connecting line penetrate through the corrosion-resistant antenna carrier layer (4) and are respectively connected with a first loop connecting point (31) and a second loop connecting point (32);
the reading positioning mark (34) is positioned in the middle of the antenna coil (35) and is square;
the antenna coil (35) is in a plurality of circles of irregular rectangles, and two points of the coil at the lower left corner of the antenna coil are connected by oblique lines;
the first chip connection point (36) and the second chip connection point (37) are positioned in the middle of the antenna coil (35) and are used for connecting a chip (7) packaged on the antenna (3) matched with the washing environment.
6. A method for designing the antenna matching of an RFID laundry tag is characterized by comprising the following steps:
step 1: performing washing environment recognition distance matching design on the antenna;
and 2, step: carrying out a washing environment reading temperature matching test on the antenna;
and 3, step 3: the frequency of the antenna is tested.
7. The method for designing the antenna matching performance of the RFID laundry tag according to claim 6, wherein the step 1 comprises the following steps:
step 1.1: the design of the inductance of the antenna and the capacitance in the chip form a resonant frequency, and the deviation of the upper frequency and the lower frequency is tested in a sample test within the range of 1Mhz because the working frequency of a reader-writer is taken as a design target;
step 1.2: the energy loss caused by the internal resistance of the antenna is reduced.
8. The method for designing the antenna matching performance of the RFID laundry tag according to claim 7, wherein the step 1.2 includes the following steps:
step 1.2.1: aluminum is selected as an antenna substrate, and the conductivity of the aluminum is 100 times smaller than that of the conductive ink;
step 1.2.2: widening the conducting wire within the area range of the antenna coil without changing the inductance of the antenna;
step 1.2.3: the number of the conductive coils is increased within the area range of the antenna coil without changing the inductance of the antenna;
step 1.2.4: the length of the conducting wire is increased within the area range of the antenna coil under the condition of not changing the antenna inductance.
9. The method for designing the antenna matching of the RFID laundry tag according to claim 6, wherein the step 2 comprises the following steps:
step 2.1: testing the inductance value of the actually measured antenna at normal temperature;
step 2.2: testing the change of inductance value at the measured temperature slightly higher than the temperature required by the laundry environment;
the temperature required by the clothes washing environment is less than or equal to 60 ℃, and the actually measured temperature is increased to about 70 ℃;
step 2.3: comparing the inductance value in the step 2.1 with that in the step 2.2, if the inductance value is not obviously changed, indicating that the antenna design meets the requirement of the laundry environment on the temperature; if not, adjusting the step 1.2.
10. The method for designing the antenna matching of the RFID laundry tag according to claim 6, wherein the step 3 comprises the following steps:
step 3.1: calculating a quality factor value;
step 3.2: calculating the upper and lower band boundaries;
step 3.3: calculating whether the working frequency of the reader-writer falls within the upper bound and the lower bound of the frequency band of the reader-writer according to the step 3.2, if so, indicating that the antenna design meets the requirement of the washing environment on the working frequency; if not, the adjustment is carried out in the step 1.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100474370A CN100498831C (en) | 2007-10-26 | 2007-10-26 | RFID wash clothes label and antenna matching property design method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100474370A CN100498831C (en) | 2007-10-26 | 2007-10-26 | RFID wash clothes label and antenna matching property design method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101140634A true CN101140634A (en) | 2008-03-12 |
| CN100498831C CN100498831C (en) | 2009-06-10 |
Family
ID=39192581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100474370A Expired - Fee Related CN100498831C (en) | 2007-10-26 | 2007-10-26 | RFID wash clothes label and antenna matching property design method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100498831C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004931A (en) * | 2010-11-15 | 2011-04-06 | 中国联合网络通信集团有限公司 | Method and system for managing clothes in laundry |
| CN102521633A (en) * | 2011-12-31 | 2012-06-27 | 厦门大学 | Article washing detection method |
| CN102938086A (en) * | 2012-01-11 | 2013-02-20 | 厦门英诺尔电子科技股份有限公司 | High temperature and acid-base resistant flexible electronic label and manufacturing process thereof |
| CN102938088A (en) * | 2012-03-28 | 2013-02-20 | 厦门英诺尔电子科技股份有限公司 | Washable flexible electronic label and manufacturing process thereof |
| CN104868245A (en) * | 2015-06-10 | 2015-08-26 | 上海安费诺永亿通讯电子有限公司 | Antenna manufactured by insert injection molding, and method for manufacturing antenna by insert injection molding |
| US20160019451A1 (en) * | 2008-02-26 | 2016-01-21 | Avery Dennison Corporation | Rfid tag for direct and indirect food contact |
| CN106868845A (en) * | 2017-02-23 | 2017-06-20 | 绍兴托普利包装有限公司 | The clothes processing system of automatic disinfection, packaging and classification |
| CN109251591A (en) * | 2018-11-19 | 2019-01-22 | 宁波石墨烯创新中心有限公司 | Electrically conductive ink, electronic tag, preparation method and radio-frequency recognition system |
| US11417948B1 (en) | 2021-01-22 | 2022-08-16 | Wistron Neweb Corporation | Antenna device |
-
2007
- 2007-10-26 CN CNB2007100474370A patent/CN100498831C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160019451A1 (en) * | 2008-02-26 | 2016-01-21 | Avery Dennison Corporation | Rfid tag for direct and indirect food contact |
| US10074048B2 (en) * | 2008-02-26 | 2018-09-11 | Avery Dennison Retail Information Services, Llc | RFID tag for direct and indirect food contact |
| CN102004931A (en) * | 2010-11-15 | 2011-04-06 | 中国联合网络通信集团有限公司 | Method and system for managing clothes in laundry |
| CN102521633A (en) * | 2011-12-31 | 2012-06-27 | 厦门大学 | Article washing detection method |
| CN102938086A (en) * | 2012-01-11 | 2013-02-20 | 厦门英诺尔电子科技股份有限公司 | High temperature and acid-base resistant flexible electronic label and manufacturing process thereof |
| CN102938088A (en) * | 2012-03-28 | 2013-02-20 | 厦门英诺尔电子科技股份有限公司 | Washable flexible electronic label and manufacturing process thereof |
| CN104868245A (en) * | 2015-06-10 | 2015-08-26 | 上海安费诺永亿通讯电子有限公司 | Antenna manufactured by insert injection molding, and method for manufacturing antenna by insert injection molding |
| CN106868845A (en) * | 2017-02-23 | 2017-06-20 | 绍兴托普利包装有限公司 | The clothes processing system of automatic disinfection, packaging and classification |
| CN109251591A (en) * | 2018-11-19 | 2019-01-22 | 宁波石墨烯创新中心有限公司 | Electrically conductive ink, electronic tag, preparation method and radio-frequency recognition system |
| CN109251591B (en) * | 2018-11-19 | 2021-10-15 | 宁波石墨烯创新中心有限公司 | Conductive ink, electronic tag, preparation method of electronic tag and radio frequency identification system |
| US11417948B1 (en) | 2021-01-22 | 2022-08-16 | Wistron Neweb Corporation | Antenna device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100498831C (en) | 2009-06-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101140634A (en) | RFID wash clothes label and antenna matching property design method thereof | |
| US7984857B2 (en) | System and method enabling fourth line embossing on contactless cards | |
| CN2834899Y (en) | Hologram digital hot-stamping anti-fake mark | |
| CN201984509U (en) | Multi-dielectric ultra-high-frequency (UHF) radio frequency identification (RFID) tag and antenna | |
| CN207651077U (en) | A kind of concealed RFID jewelry labels | |
| CN2662362Y (en) | Multifunctional false proof marker with radio frequency identification | |
| CN103514472A (en) | High-frequency intelligent clothing tag | |
| CN201126693Y (en) | Fire-resistant water-resistant-immersion papery RFID laundry label | |
| CN113993712A (en) | Planar sheet for radio frequency identification | |
| CN102693447A (en) | Manufacturing method for ultrahigh-frequency electronic tag and ultrahigh-frequency electronic tag | |
| CN205721897U (en) | A kind of RFID anti-metal electronic tag | |
| CN212084178U (en) | Radio frequency identification's electron drop | |
| CN205540847U (en) | Hyperfrequency RFID electronic tags of stereoplasm PC material for overload protection device | |
| CN208766705U (en) | A kind of anti-transfer electronic tag | |
| CN209015196U (en) | A kind of electronic tag for being intelligently sold | |
| CN208903288U (en) | With radium-shine or electroplated decoration smart card | |
| CN206515880U (en) | RFID tag for the temperature detection in logistics progress | |
| CN206515871U (en) | Ultrahigh frequency electronic tag | |
| CN208538162U (en) | A kind of ultra high frequency IC tag | |
| CN208298236U (en) | A kind of ultra high frequency IC tag | |
| CN205540865U (en) | Hyperfrequency RFID electronic tags for overload protection device | |
| CN208538163U (en) | A kind of ultra high frequency IC tag | |
| CN108734257A (en) | A kind of RFID jewelry labels | |
| CN215117573U (en) | Semi-active temperature label | |
| CN207601838U (en) | A kind of flexibility anti-metal electronic tag |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI ZHONGJING SMART TAG INTEGRATED CO., LTD. Free format text: FORMER OWNER: SHANGHAI ZHONGJING ELECTRONIC LABEL INTEGRATION TECHNOLOGY CO., LTD. Effective date: 20140513 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201203 PUDONG NEW AREA, SHANGHAI TO: 200000 PUDONG NEW AREA, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140513 Address after: 200000 Shanghai City, Pudong New Area Chinese (Shanghai) Free Trade Zone No. 1333 Wen Ju Lu B District eight floor room 8060 Patentee after: Beijing complex (Shanghai) electronic tag Integrated Technology Co. Ltd. Address before: 201203, 11, 1387 East Cheung Road, Shanghai, Pudong New Area Patentee before: Shanghai Zhongjing Electronic Label Integration Technology Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200000 Shanghai City, Pudong New Area Chinese (Shanghai) Free Trade Zone No. 1333 Wen Ju Lu B District eight floor room 8060 Patentee after: ZHONGJING FUDIAN (SHANGHAI) ELECTRONIC TECHNOLOGY CO., LTD. Address before: 200000 Shanghai City, Pudong New Area Chinese (Shanghai) Free Trade Zone No. 1333 Wen Ju Lu B District eight floor room 8060 Patentee before: Beijing complex (Shanghai) electronic tag Integrated Technology Co. Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090610 Termination date: 20191026 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |