CN102902944B - Implementation method for reading ultra high frequency RFID (radio frequency identification) label through metal container - Google Patents
Implementation method for reading ultra high frequency RFID (radio frequency identification) label through metal container Download PDFInfo
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- CN102902944B CN102902944B CN201210348310.3A CN201210348310A CN102902944B CN 102902944 B CN102902944 B CN 102902944B CN 201210348310 A CN201210348310 A CN 201210348310A CN 102902944 B CN102902944 B CN 102902944B
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Abstract
The invention discloses an implementation method for reading an ultra high frequency RFID (radio frequency identification) label through a metal container, which comprises the following steps of: (1) determining the position of a RFID label on a device in the metal container; (2) modeling according to the positions of the metal container, the device and the RFID label; (3) punching a hole or slit in the metal container in the model, setting parameters, and determining the position of the hole or slit in the metal container according to an analog simulation result; and (4) reading the information of the RFID label. According to the invention, the ultra high frequency RFID label placed in a closed metal container can be read without changing the material of the metal wrapping. Through the technology, the application field of the ultra high frequency RFID technology can be greatly enlarged, and a feasible technical scheme can be provided to the application of the ultra high frequency RFID technology in various metal wrapped objects on the future market. Through the technology, the application range of Internet of things is widened.
Description
Technical field
The present invention relates to REID, be specifically related to the implementation method that a kind of penetrating metal container reads ultra-high frequency RFID label.
Background technology
Super high frequency radio frequency identification (RFID) technology is a kind of contactless automatic identification technology.In radio-frequency recognition system, read write line sends frequency microwave signal activation radio frequency tag chip, and receives the radiofrequency signal returned from label, thus reaches the object of identification.And label chip can be attached on various article.Current ultrahigh frequency RFID has been applied to various field, such as Wine anti-counterfeit, clothes, electric power etc.
As everyone knows, metal can shield electromagnetic wave, if be therefore placed in canister by ultra-high frequency RFID label, can make ultra-high frequency RFID label None-identified.Which limits the application of ultra-high frequency RFID technology in some fields.Illustrate, current Wine anti-counterfeit will use ultra-high frequency RFID technology in a large number, and label is attached on bottle, but present stage a lot of wine external packing all contain metal ingredient (can improve packaging class), therefore can cause label can not by read write line identification.
Existing market does not also have the technology breaking through canister reading ultra-high frequency RFID label.Have indivedual application directly mental package to be become non-metallic material packaging, but do like this and can bring other problem, such as durability can be deteriorated, and easily damages etc.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of penetrating metal container and read the implementation method of ultra-high frequency RFID label, when not changing mental package thing material, and can read and be positioned over closed metal internal tank ultra-high frequency RFID label.Largely can be expanded the application of ultra-high frequency RFID technology by this technology, ultra-high frequency RFID technology can be used to provide practicable technical scheme for the article of various mental package on future market.
A kind of penetrating metal container provided by the invention reads the implementation method of ultra-high frequency RFID label, and its improvements are, described method comprises the steps:
(1) position of RFID label tag on the device in canister is determined;
(2) according to the position modeling of described canister, described device and described RFID label tag;
(3) canister in a model spiles/gap, and setup parameter, according to size and the position in aperture/gap on analog result determination canister;
(4) information of described RFID label tag is read by described aperture.
Wherein, step (3) canister in a model spiles/gap, and setup parameter, comprises the steps: according to the size in aperture/gap on analog result determination canister and position
1) size and the position in aperture/gap is preset on metallic containers;
2) in canister, be RFID label antenna modeling;
3) setup parameter, comprises RFID frequency of operation, aperture, gap width, canister size and the distance with RFID label tag;
4) calculate the gain of RFID label antenna, determine reaction enhanced intensity point with the size of this antenna gain;
5) judge that whether described enhanced intensity point is the position of described RFID label tag, be determine size and the position in aperture or gap, otherwise return to size and position that step 1) resets aperture/gap.
Wherein, the diameter of described aperture is less than 0.5mm; Described gap width is less than 0.5mm.
Wherein, described aperture is at least one.
Wherein, described aperture or gap are arranged on one or more of the decorative pattern of described canister, font and pattern.
Wherein, when described aperture/gap is two or more, described aperture/gap can be arranged at the different surfaces of described canister or same surface.
Compared with the prior art, beneficial effect of the present invention is:
The present invention, when not changing mental package thing material, can read and be positioned over closed metal internal tank ultra-high frequency RFID label.Largely can be expanded the application of ultra-high frequency RFID technology by this technology, ultra-high frequency RFID technology can be used to provide practicable technical scheme for the article of various mental package on future market.Use ultra-high frequency RFID technology also will come true by the inherent metal environmental interior of a lot of industrial circle of this technology.By this technology, also will the range of application of Internet of Things be made more extensive.
The present invention due to the diameter in hole or the width in gap very little, therefore the appearance effects for canister is little, this some holes or gap can be hidden on decorative pattern, logo, font or the pattern outside canister completely even, remain original outward appearance.
Accompanying drawing explanation
Fig. 1 is the schematic diagram by label setting aperture provided by the invention.
Fig. 2 is computing machine modeler model provided by the invention.
Fig. 3 is the gain schematic diagram of the label antenna of emulation provided by the invention, wherein, angle be 0 direction be Z-direction in Fig. 2.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Embodiment one
A kind of penetrating metal container that the present embodiment provides reads the implementation method of ultra-high frequency RFID label, and described method comprises the steps:
(1) position of RFID label tag on the device in canister is determined;
(2) according to the position modeling of described canister, described device and described RFID label tag;
(3) canister in a model spiles or gap, and setup parameter, according to size and the position in aperture or gap on analog result determination canister;
(4) information of described RFID label tag is read by described aperture or gap.
Wherein, punching on canister in a model setup parameter, according to the position principle of aperture on analog result determination canister as shown in Figure 1, specific as follows:
1. open a hole to canister, the diameter in hole much smaller than electromagnetic wavelength, generally will be got and is less than 0.5mm.Parallel electromagnetic wave outside canister will produce the diffraction of ripple by this aperture, and will form multipath reflection in canister.
2. again open second hole to canister, the diffracted wave so produced through this hole is also repeatedly launched producing in canister simultaneously, and interferes phenomenon with the diffracted wave that first hole produces.Because these two kinds of ripple frequencies are identical, and there is certain phase differential, therefore, standing wave point and enhanced intensity point will be formed in space, and these enhanced intensity points will be the positions of placing RFID label tag.In figure, parallel electromagnetic wave produces diffraction respectively by two holes, and produces coherent diffraction with the electromagnetic wave that metallic walls reflects and form the enhanced intensity point of P point.Enhanced intensity point P point can be set position as required by the position and quantity that redesign hole.
3. can open more hole on metallic containers, notably annular slot or rectangular gap (gap can be thought the set of many holes), or by the combination in various hole or gap, and artificial enhanced intensity point is just in time set in label position in conjunction with the true form of canister by calculating.
4., on the position of this enhanced intensity point, ultra-high frequency RFID label will obtain the electromagnetic wave energy outside canister and work.
Concrete, the present embodiment is calculated by microcomputer modelling determines aperture position, and its step is as follows:
1. use HFSS to be canister and the modeling of UHF RFID label antenna, as shown in Figure 2;
2. open a circular gap on the surface in the side of metal, gap width is 0.3mm, as shown in Figure 2, the radius in circular gap and its is arranged to variable element in the position of metal surface, so that constantly adjust during emulation;
3. setting UHF RFID frequency of operation is 920MHz, and to set label antenna gain be simulation result (can indirect reaction field strength);
4. constantly adjust radius and the position in circular gap, make the gain of label antenna upper maximum in required direction (this example is Z-direction);
5. the gain of the label antenna of emulation is according to computer simulation, as shown in Figure 3.It can draw, radius is that the circular gap of 47mm can make label antenna obtain very high gain (can obtain the gain of 0.88dBi along Z-direction) in this example, and now round center faces label antenna.
The seam shape of the present embodiment can be circle, ellipse and square etc., and gap width will much smaller than electromagnetic wavelength.And gap can be hidden on one or more of the decorative pattern of described canister, font and pattern.So both achieve radio frequency to read, also do not affect the outward appearance of canister.
When the described aperture/gap of the present embodiment is two or more, described aperture/gap can be arranged at the different surfaces of described canister or same surface.General, according to factory settings, its aperture/gap is arranged at the same surface of canister.If user has demand, can according to its requirements set in different surfaces, convenient reading.
The modeling of the present embodiment and calculating, can realize by means of computing machine, also manually can calculate realization.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although with reference to above-described embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or equivalent replacement, and not departing from any amendment of spirit and scope of the invention or equivalent replacement, it all should be encompassed in the middle of right of the present invention.
Claims (4)
1. penetrating metal container reads an implementation method for ultra-high frequency RFID label, and it is characterized in that, described method comprises the steps:
(1) position of RFID label tag on the device in canister is determined;
(2) according to the position modeling of described canister, described device and described RFID label tag;
(3) canister in a model spiles/gap, and setup parameter, according to size and the position in aperture/gap on analog result determination canister;
(4) information of described RFID label tag is read by described aperture;
Step (3) canister in a model spiles/gap, and setup parameter, comprises the steps: according to the size in aperture/gap on analog result determination canister and position
1) size and the position in aperture/gap is preset on metallic containers;
2) be RFID label antenna modeling;
3) setup parameter, comprises RFID frequency of operation, aperture, gap width, canister size and the distance with RFID label tag;
4) calculate the gain of RFID label antenna, determine reaction enhanced intensity point with the size of this antenna gain;
5) judging that whether described enhanced intensity point is the position of described RFID label tag, is determine size and the position in aperture or gap, otherwise return step 1) reset size and the position in aperture/gap.
2. implementation method as claimed in claim 1, it is characterized in that, the diameter of described aperture is less than 0.5mm; Described gap width is less than 0.5mm.
3. implementation method as claimed in claim 1, it is characterized in that, described aperture/gap is at least one.
4. implementation method as claimed in claim 1, is characterized in that, described aperture or gap are arranged on one or more of the decorative pattern of described canister, font and pattern.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210348310.3A CN102902944B (en) | 2012-09-18 | 2012-09-18 | Implementation method for reading ultra high frequency RFID (radio frequency identification) label through metal container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210348310.3A CN102902944B (en) | 2012-09-18 | 2012-09-18 | Implementation method for reading ultra high frequency RFID (radio frequency identification) label through metal container |
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| Publication Number | Publication Date |
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| CN102902944A CN102902944A (en) | 2013-01-30 |
| CN102902944B true CN102902944B (en) | 2015-04-01 |
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| CN201210348310.3A Active CN102902944B (en) | 2012-09-18 | 2012-09-18 | Implementation method for reading ultra high frequency RFID (radio frequency identification) label through metal container |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103942517A (en) * | 2014-04-29 | 2014-07-23 | 天津菲利科电子技术有限公司 | Real-time identification system and method for material or target in metal box |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2887776Y (en) * | 2005-11-30 | 2007-04-11 | 上海衡准智能科技有限公司 | Composite intelligent bottle cap |
| CN102129600A (en) * | 2011-03-11 | 2011-07-20 | 江苏中科方盛信息科技有限公司 | Method for designing ultra-high frequency radio frequency identification (RFID) label applied to identification of carton of cigarettes and label |
| CN202244568U (en) * | 2011-07-28 | 2012-05-30 | 福建鸿博致远信息科技有限公司 | Wine box with RFID (radio frequency identification) anti-counterfeit label |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004031879B4 (en) * | 2004-06-30 | 2017-11-02 | Ovd Kinegram Ag | Security document for RF identification |
| US7741965B2 (en) * | 2005-05-19 | 2010-06-22 | Chung Nam Electronics Co., Ltd. | Radio frequency identification (RFID) system |
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- 2012-09-18 CN CN201210348310.3A patent/CN102902944B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2887776Y (en) * | 2005-11-30 | 2007-04-11 | 上海衡准智能科技有限公司 | Composite intelligent bottle cap |
| CN102129600A (en) * | 2011-03-11 | 2011-07-20 | 江苏中科方盛信息科技有限公司 | Method for designing ultra-high frequency radio frequency identification (RFID) label applied to identification of carton of cigarettes and label |
| CN202244568U (en) * | 2011-07-28 | 2012-05-30 | 福建鸿博致远信息科技有限公司 | Wine box with RFID (radio frequency identification) anti-counterfeit label |
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| CN102902944A (en) | 2013-01-30 |
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