CN102902944A - 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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- CN102902944A CN102902944A CN2012103483103A CN201210348310A CN102902944A CN 102902944 A CN102902944 A CN 102902944A CN 2012103483103 A CN2012103483103 A CN 2012103483103A CN 201210348310 A CN201210348310 A CN 201210348310A CN 102902944 A CN102902944 A CN 102902944A
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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 of returning from label, thereby reaches the purpose of identification.And label chip can be attached on the various article.Ultrahigh frequency RFID has been applied to various fields at present, for example Wine anti-counterfeit, clothes, electric power etc.
As everyone knows, metal can shield electromagnetic wave, if therefore ultra-high frequency RFID label is placed in the canister, meeting is so that the ultra-high frequency RFID label None-identified.This has just limited the application of ultra-high frequency RFID technology in some fields.Illustrate, present Wine anti-counterfeit will use ultra-high frequency RFID technology in a large number, and label is attached on the bottle, but present stage a lot of wine external packing all contain metal ingredient (can improve packing class), therefore can cause label not identified by read write line.
Existing market does not also have the technology that canister reads ultra-high frequency RFID label that breaks through.There is several applications directly mental package to be become the non-metallic material packing, can brings other problem but do like this, can variation, easily damage etc. such as durability.
Summary of the invention
For the deficiencies in the prior art, the invention provides the implementation method that a kind of penetrating metal container reads ultra-high frequency RFID label, do not change in the situation of mental package thing material, be positioned over closed metal internal tank ultra-high frequency RFID label and can read.Can largely enlarge the application of ultra-high frequency RFID technology by this technology, can use ultra-high frequency RFID technology that practicable technical scheme is provided for the article of various mental packages on the 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 that described method comprises the steps:
(1) determines the position of RFID label on the device in the canister;
(2) according to the position modeling of described canister, described device and described RFID label;
(3) canister in model spiles/slit, and setup parameter, determines size and the position in aperture/slit on the canister according to analog result;
(4) read the information of described RFID label by described aperture.
Wherein, the canister of step (3) in model spiles/slit, and setup parameter, determines that according to analog result the size in aperture/slit on the canister and position comprise the steps:
1) in size and the position in the default aperture/slit of canister;
2) be the modeling of RFID label antenna in canister;
3) setup parameter, comprise RFID frequency of operation, aperture, gap width, canister size and with the distance of RFID label;
4) gain of calculating RFID label antenna is determined reaction enhanced intensity point with the size of this antenna gain;
5) judge the whether position of described RFID label of described enhanced intensity point, be size and the position of then determining aperture or slit, otherwise return size and position that step 1) resets aperture/slit.
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 slit are arranged on one or more of decorative pattern, font and pattern of described canister.
Wherein, when described aperture/slit was two or more, described aperture/slit can be arranged at different surfaces or the same surface of described canister.
Compared with the prior art, beneficial effect of the present invention is:
The present invention can read and be positioned over closed metal internal tank ultra-high frequency RFID label in the situation that does not change mental package thing material.Can largely enlarge the application of ultra-high frequency RFID technology by this technology, can use ultra-high frequency RFID technology that practicable technical scheme is provided for the article of various mental packages on the future market.Domestic section uses ultra-high frequency RFID technology also will come true by the inherent becket of a lot of industrial circles of this technology.By this technology, also will be so that the range of application of Internet of Things be more extensive.
The present invention is because the width in the diameter in hole or slit is very little, therefore little for the appearance effects of canister, these holes or slit can be hidden on decorative pattern, logo, font or the pattern of canister outside fully even, have kept original outward appearance.
Description of drawings
Fig. 1 is the schematic diagram of setting aperture by label provided by the invention.
Fig. 2 is the computing machine modeler model of using provided by the invention.
Fig. 3 is the gain synoptic diagram of the label antenna of emulation provided by the invention, and wherein, angle is that 0 direction is the Z-direction among 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 present embodiment provides reads the implementation method of ultra-high frequency RFID label, and described method comprises the steps:
(1) determines the position of RFID label on the device in the canister;
(2) according to the position modeling of described canister, described device and described RFID label;
(3) canister in model spiles or the slit, and setup parameter, determines size and the position in aperture on the canister or slit according to analog result;
(4) read the information of described RFID label by described aperture or slit.
Wherein, the punching of canister in model and setup parameter, the position principle of determining aperture on the canister according to analog result is as shown in Figure 1, and is specific as follows:
1. open a hole to canister, the diameter in hole will be much smaller than electromagnetic wavelength, generally gets less than 0.5mm to get final product.The outer parallel electromagnetic wave of canister will produce by this aperture the diffraction of ripple, and will form multipath reflection in canister.
2. again open second hole to canister, the diffracted wave that produces through this hole so also will produce repeatedly emission simultaneously in canister, and interfere phenomenon with diffracted wave that first hole produces.Because these two kinds of ripple frequencies are identical, and exist certain phase differential, therefore, will in the space, form standing wave point and enhanced intensity point, and these enhanced intensities to name a person for a particular job be the position of placement RFID label.Among the figure, parallel electromagnetic wave produces diffraction by two holes respectively, and produces coherent diffraction and form the enhanced intensity point that P is ordered with electromagnetic wave that metallic walls reflects.Enhanced intensity can be put the P point by the redesign position in hole and quantity sets according to the needs position.
3. can open more hole at canister, very the person is annular slot or rectangular slit (slit can be thought the set in a lot of holes), the perhaps combination by various holes or slit, and come artificial enhanced intensity point just in time to be set in the label position by calculating in conjunction with the true form of canister.
4. on the position of this enhanced intensity point, ultra-high frequency RFID label will obtain the outer electromagnetic wave energy of canister and work.
Concrete, present embodiment is by microcomputer modelling calculative determination 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 slit at a side surface of metal, gap width is 0.3mm, as shown in Figure 2, with the radius in circular slit with and be 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 the gain of setting label antenna is simulation result (but indirect reaction field intensity intensity);
4. constantly adjust radius and the position in circular slit, so that the gain of label antenna is upper maximum in needed 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, and radius is that the circular slit of 47mm in this example can be so that label antenna obtains very high gain (can obtain the gain of 0.88dBi along Z-direction), and this moment, the center of circle faced label antenna.
The seam shape of present embodiment can be circle, ellipse and square etc., and gap width will get final product much smaller than electromagnetic wavelength.And the slit can be hidden on one or more of decorative pattern, font and pattern of described canister.So both realized that radio frequency read, also do not affected the outward appearance of canister.
When the described aperture/slit of present embodiment was two or more, described aperture/slit can be arranged at different surfaces or the same surface of described canister.General, according to factory settings, the same surface that its aperture/slit is arranged at canister gets final product.If the user has demand, can according to its requirements set in different surfaces, conveniently read.
The modeling of present embodiment and calculating can by means of computer realization, also can manually be calculated realization.
Should be noted that at last: 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 the present invention is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or be equal to replacement the specific embodiment of the present invention, and do not break away from any modification of spirit and scope of the invention or be equal to replacement, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (5)
1. a penetrating metal container reads the implementation method of ultra-high frequency RFID label, it is characterized in that described method comprises the steps:
(1) determines the position of RFID label on the device in the canister;
(2) according to the position modeling of described canister, described device and described RFID label;
(3) canister in model spiles/slit, and setup parameter, determines size and the position in aperture/slit on the canister according to analog result;
(4) read the information of described RFID label by described aperture.
2. implementation method as claimed in claim 1 is characterized in that, the canister of step (3) in model spiles/slit, and setup parameter, determines that according to analog result the size in aperture/slit on the canister and position comprise the steps:
1) in size and the position in the default aperture/slit of canister;
2) be the modeling of RFID label antenna;
3) setup parameter, comprise RFID frequency of operation, aperture, gap width, canister size and with the distance of RFID label;
4) gain of calculating RFID label antenna is determined reaction enhanced intensity point with the size of this antenna gain;
5) judge the whether position of described RFID label of described enhanced intensity point, be size and the position of then determining aperture or slit, otherwise return size and position that step 1) resets aperture/slit.
3. implementation method as claimed in claim 1 is characterized in that, the diameter of described aperture is less than 0.5mm; Described gap width is less than 0.5mm.
4. implementation method as claimed in claim 1 is characterized in that, described aperture/slit is at least one.
5. implementation method as claimed in claim 1 is characterized in that, described aperture or slit are arranged on one or more of decorative pattern, font and pattern of described canister.
Priority Applications (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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| 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 true CN102902944A (en) | 2013-01-30 |
| CN102902944B 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| US20060261938A1 (en) * | 2005-05-19 | 2006-11-23 | Lai Kin Y A | Radio Frequency Identification (RFID) system |
| CN2887776Y (en) * | 2005-11-30 | 2007-04-11 | 上海衡准智能科技有限公司 | Composite intelligent bottle cap |
| US20070229263A1 (en) * | 2004-06-30 | 2007-10-04 | Ovd Kinegram Ag | Security Element for Rf Identification |
| 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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2012
- 2012-09-18 CN CN201210348310.3A patent/CN102902944B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070229263A1 (en) * | 2004-06-30 | 2007-10-04 | Ovd Kinegram Ag | Security Element for Rf Identification |
| US20060261938A1 (en) * | 2005-05-19 | 2006-11-23 | Lai Kin Y A | Radio Frequency Identification (RFID) system |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN102902944B (en) | 2015-04-01 |
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