CN112819123A - Electromagnetic wave absorption code recognition system and method - Google Patents
Electromagnetic wave absorption code recognition system and method Download PDFInfo
- Publication number
- CN112819123A CN112819123A CN202110343386.6A CN202110343386A CN112819123A CN 112819123 A CN112819123 A CN 112819123A CN 202110343386 A CN202110343386 A CN 202110343386A CN 112819123 A CN112819123 A CN 112819123A
- Authority
- CN
- China
- Prior art keywords
- electromagnetic wave
- code
- electromagnetic
- wave absorption
- wave
- 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
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
- G06K19/06187—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 with magnetically detectable marking
- G06K19/06196—Constructional details
-
- 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
-
- 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
- G06K19/06009—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 with optically detectable marking
- G06K19/06046—Constructional details
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10792—Special measures in relation to the object to be scanned
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention relates to an electromagnetic wave absorption code recognition system and a method, wherein the system comprises: an electromagnetic wave transmitter for transmitting an electromagnetic wave; the electromagnetic wave absorbing code is a bar code coated with wave absorbing ink according to the code, the wave absorbing area absorbs electromagnetic waves, and the electromagnetic waves form the code to be identified through the transmission area and are sent to the reader; and the reader is used for receiving, reading and identifying the coded information to be identified. The method comprises the following steps: 1) the electromagnetic wave transmitter transmits electromagnetic waves towards the electromagnetic wave absorption code; 2) the electromagnetic wave absorption code receives electromagnetic waves, the wave absorption region absorbs the electromagnetic waves, and the electromagnetic waves transmitted by the transmission region form an electromagnetic wave coding signal to be identified; 3) the reader receives the electromagnetic wave code signal, reads and identifies the code information. The system and the method are beneficial to improving the information capacity, the application range and the practicability of the bar code.
Description
Technical Field
The invention belongs to the technical field of bar code identification, and particularly relates to an electromagnetic wave absorption code identification system and method.
Background
The bar code is divided into a one-dimensional bar code and a two-dimensional bar code, and a plurality of black bars and blanks with different widths are arranged according to a certain coding rule to express a group of graphic identifiers of information. As the bar code is widely used in various fields, the identification technology thereof needs to be further improved, and the existing code scanning technology is to read and decode the reflected light wave by using the black and white area of the bar code to the different reflectivities of the light wave. The technology has the problems that the bar code is required to be close to reading equipment for identification under the condition of no coverage, the operation is not simple and convenient enough, and the efficiency is low; and the capacity that the bar code can be stored is limited, even two-dimensional code, the biggest capacity can only store 2 to 3000 characters.
The chinese patent publication No. CN105469131A discloses an implicit two-dimensional code and a reading and recognizing device thereof, which improves the situation that a slightly mottled two-dimensional code under visible light is not consistent with the background, and the reading device can realize remote reading by adopting an intelligent algorithm for automatic focusing. However, the design does not change the storage capacity of the two-dimensional code, and the identification technology does not break through the use in the light wave band.
Disclosure of Invention
The invention aims to provide an electromagnetic wave absorption code recognition system and method, which are beneficial to improving the information capacity, the application range and the practicability of a bar code.
In order to achieve the purpose, the invention adopts the technical scheme that: an electromagnetic wave absorption code recognition system comprising:
an electromagnetic wave transmitter for transmitting an electromagnetic wave;
the electromagnetic wave absorbing code is a bar code coated with wave absorbing ink according to the code, the wave absorbing area absorbs electromagnetic waves, and the electromagnetic waves form the code to be identified through the transmission area and are sent to the reader; and
and the reader is used for receiving, reading and identifying the coded information to be identified.
Furthermore, the electromagnetic wave band emitted by the electromagnetic wave emitter is 300 MHz-300 GHz.
Furthermore, the electromagnetic wave absorbing codes are one-dimensional bar codes or two-dimensional bar codes, each electromagnetic wave absorbing code consists of a wave absorbing region and a transmission region, wave absorbing ink is coated on the wave absorbing region, and wave absorbing ink is not coated on the transmission region; when the electromagnetic wave absorption code receives the electromagnetic wave, the wave absorption area absorbs the electromagnetic wave, and the electromagnetic wave transmitted by the transmission area forms an electromagnetic wave coding signal and is sent to a reader for identification.
Further, the transmission area is coated with a wave-transmitting material.
Furthermore, the wave-absorbing ink is formed by physically dispersing and mixing ink and wave-absorbing materials.
Furthermore, the wave-absorbing material is one of a ferromagnetic material, a conductive loss type material, a dielectric type material, a chiral material and a plasma material; the ferromagnetic material comprises ferrite and alloy, and attenuates electromagnetic waves through hysteresis loss, eddy current loss or natural resonance; the conductive loss type material comprises a conductive high polymer material and a conductive carbon material, wherein the conductive high polymer material comprises polyaniline and polypyrrole, and the conductive carbon material comprises graphene oxide, carbon fiber and carbon nano tubes; the dielectric material comprises a ceramic material and a lossless polymer material, and the ceramic material comprises BaTiO3And SiO2The lossless polymer material includes polystyrene and polypropylene.
Furthermore, the reader comprises an electromagnetic converter, a decoder and a computer system, when the reader receives an electromagnetic wave encoding signal, the electromagnetic converter converts a magnetic signal into an electric signal, and the decoder translates the input electric signal and transmits the electric signal to the computer system for identification.
The invention also provides an electromagnetic wave absorption code identification method based on the system, which comprises the following steps:
1) the electromagnetic wave transmitter transmits electromagnetic waves towards the electromagnetic wave absorption code;
2) the electromagnetic wave absorption code receives electromagnetic waves, the wave absorption region absorbs the electromagnetic waves, and the electromagnetic waves transmitted by the transmission region form an electromagnetic wave coding signal to be identified;
3) the reader receives the electromagnetic wave code signal, reads and identifies the code information.
Compared with the prior art, the invention has the following beneficial effects: the system and the method can overcome the defect that the prior code scanning technology needs to read the coded information in a short distance, and can realize long-distance decoding through certain specific frequency bands such as radio waves and microwaves. The transmission electromagnetic waves with different frequencies are combined with the storage capacity of the bar code, so that the storage information capacity of the bar code can be further expanded. In addition, according to different application scene requirements, electromagnetic waves with different frequencies can be used, the method is not limited to light wave bands, and the application range of the bar code is expanded. In addition, different types of wave-absorbing materials are selected according to different application environments, so that the pollution resistance and durability of the bar code can be improved, and the practicability of the bar code in different environments is further improved.
Drawings
Fig. 1 is a schematic system structure according to an embodiment of the present invention.
FIG. 2 is a diagram of an electromagnetic wave absorption code according to an embodiment of the present invention.
FIG. 3 is a schematic diagram of a reader in an embodiment of the present invention.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
As shown in fig. 1, the present embodiment provides an electromagnetic wave absorption code recognition system including an electromagnetic wave transmitter 1, an electromagnetic wave absorption code 2, and a reader 4. The electromagnetic wave transmitter 1 is used for transmitting electromagnetic waves. The electromagnetic wave absorbing code 2 is a bar code coated with wave absorbing ink according to codes, the wave absorbing area absorbs electromagnetic waves, and the electromagnetic waves penetrate through the transmission area to form a code 3 to be identified and are sent to the reader 4. The reader 4 is used for receiving, reading and identifying the coded information to be identified.
The electromagnetic wave band transmitted by the electromagnetic wave transmitter is 300 MHz-300 GHz.
The electromagnetic wave absorption code is a one-dimensional bar code or a two-dimensional bar code. As shown in fig. 2, the electromagnetic wave absorbing code 2 is composed of a wave absorbing region a and a transmission region B, wherein wave absorbing ink is coated on the wave absorbing region a, and wave absorbing ink is not coated on the transmission region; when the electromagnetic wave absorption code receives the electromagnetic wave, the wave absorption area absorbs the electromagnetic wave, and the electromagnetic wave transmitted by the transmission area forms an electromagnetic wave coding signal and is sent to a reader for identification. The transmission area B is coated with a wave-transmitting material.
The wave-absorbing ink is formed by physically dispersing and mixing ink and wave-absorbing materials. The wave-absorbing material comprises:
1) ferromagnetic materials, including ferrites and alloys, etc., attenuate electromagnetic waves by hysteresis loss, eddy current loss, natural resonance, etc.;
2) the conductive loss type material comprises a conductive high polymer material and a conductive carbon material, wherein the conductive high polymer material comprises polyaniline, polypyrrole and the like, and the conductive carbon material comprises graphene oxide, carbon fiber, carbon nano tube and the like;
3) dielectric material comprising a ceramic material and a loss-free polymer material, the ceramic material comprising BaTiO3、SiO2Etc., the lossless polymer material includes polystyrene, polypropylene, etc.;
4) chiral materials, plasma materials, and the like.
As shown in fig. 3, the reader 4 is composed of an electromagnetic converter, a decoder and a computer system, when the reader receives an electromagnetic wave encoding signal, the electromagnetic converter converts a magnetic signal into an electrical signal, and the decoder translates the input electrical signal and transmits the electrical signal to the computer system for identification.
The embodiment also provides an electromagnetic wave absorption code identification method based on the system, which comprises the following steps:
1) the electromagnetic wave transmitter 1 transmits electromagnetic waves toward the electromagnetic wave absorption code 2;
2) the electromagnetic wave absorption code 2 receives electromagnetic waves, the wave absorption region absorbs the electromagnetic waves, and the electromagnetic waves transmitted by the transmission region form an electromagnetic wave coding signal 3 to be identified;
3) the reader 4 receives the electromagnetic wave code signal 3, reads and identifies the code information.
The electromagnetic wave emitter 1 emits electromagnetic waves of different frequencies, when the electromagnetic waves absorb the absorption region of the code 2Part of the electromagnetic wave is absorbed, the electromagnetic wave transmitted through the complete transmission area forms an electromagnetic wave code signal 3, and the electromagnetic wave code signal is provided for a code reader 4 to identify the information required by signal reading. For example, the A area is coated with ceric oxide doped cobalt @ carbon composite wave-absorbing material, and the B area is coated with SiO2The wave-transmitting agent is applied to commodity price identification and calculation of supermarkets, the electromagnetic wave transmitter can be a radio frequency machine with specific microwave frequency, and the reader can be an electromagnetic wave absorption code identification small program of a mobile phone. When the customer passes through the radio frequency area, the bar code can automatically induce and absorb electromagnetic waves, and at the moment, an electromagnetic wave code reader in the mobile phone can also read information and automatically settle the total price of the commodity to be supplied to the customer for payment. Different transmitters, electromagnetic wave absorbing codes and readers can be adopted according to different application scenes.
The above are preferred embodiments of the present invention, and all changes made according to the technical scheme of the present invention that produce functional effects do not exceed the scope of the technical scheme of the present invention belong to the protection scope of the present invention.
Claims (8)
1. An electromagnetic wave absorption code recognition system, comprising:
an electromagnetic wave transmitter for transmitting an electromagnetic wave;
the electromagnetic wave absorbing code is a bar code coated with wave absorbing ink according to the code, the wave absorbing area absorbs electromagnetic waves, and the electromagnetic waves form the code to be identified through the transmission area and are sent to the reader; and
and the reader is used for receiving, reading and identifying the coded information to be identified.
2. The electromagnetic wave absorption code identification system of claim 1, wherein the electromagnetic wave emitter emits electromagnetic waves in a microwave band of 300 MHz to 300 GHz.
3. The electromagnetic wave absorption code recognition system according to claim 1, wherein the electromagnetic wave absorption code is a one-dimensional bar code or a two-dimensional bar code, the electromagnetic wave absorption code is composed of a wave absorption region and a transmission region, the wave absorption region is coated with wave absorption ink, and the transmission region is not coated with wave absorption ink; when the electromagnetic wave absorption code receives the electromagnetic wave, the wave absorption area absorbs the electromagnetic wave, and the electromagnetic wave transmitted by the transmission area forms an electromagnetic wave coding signal and is sent to a reader for identification.
4. The system according to claim 3, wherein the transmission region is coated with a wave-transmitting material.
5. The system for identifying the electromagnetic wave absorption code as claimed in claim 1, wherein the wave-absorbing ink is formed by physically dispersing and mixing ink and wave-absorbing material.
6. The system for identifying the electromagnetic wave absorption code as claimed in claim 5, wherein the wave-absorbing material is one of a ferromagnetic material, a conductive loss type material, a dielectric type material, a chiral material and a plasma material; the ferromagnetic material comprises ferrite and alloy, and attenuates electromagnetic waves through hysteresis loss, eddy current loss or natural resonance; the conductive loss type material comprises a conductive high polymer material and a conductive carbon material, wherein the conductive high polymer material comprises polyaniline and polypyrrole, and the conductive carbon material comprises graphene oxide, carbon fiber and carbon nano tubes; the dielectric material comprises a ceramic material and a lossless polymer material, and the ceramic material comprises BaTiO3And SiO2The lossless polymer material includes polystyrene and polypropylene.
7. The system of claim 1, wherein the reader comprises an electromagnetic converter, a decoder and a computer system, when the reader receives the electromagnetic wave encoding signal, the electromagnetic converter converts the magnetic signal into an electrical signal, and the decoder translates the input electrical signal and transmits the electrical signal to the computer system for identification.
8. An electromagnetic wave absorption code recognition method based on the system of any one of claims 1 to 7, comprising the steps of:
1) the electromagnetic wave transmitter transmits electromagnetic waves towards the electromagnetic wave absorption code;
2) the electromagnetic wave absorption code receives electromagnetic waves, the wave absorption region absorbs the electromagnetic waves, and the electromagnetic waves transmitted by the transmission region form an electromagnetic wave coding signal to be identified;
3) the reader receives the electromagnetic wave code signal, reads and identifies the code information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110343386.6A CN112819123B (en) | 2021-03-31 | 2021-03-31 | Electromagnetic wave absorption code recognition system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110343386.6A CN112819123B (en) | 2021-03-31 | 2021-03-31 | Electromagnetic wave absorption code recognition system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112819123A true CN112819123A (en) | 2021-05-18 |
| CN112819123B CN112819123B (en) | 2022-07-26 |
Family
ID=75863622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110343386.6A Active CN112819123B (en) | 2021-03-31 | 2021-03-31 | Electromagnetic wave absorption code recognition system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112819123B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1020786A (en) * | 1996-07-04 | 1998-01-23 | Fuji Xerox Co Ltd | Labeled material and code label identification method |
| WO2010012046A1 (en) * | 2008-08-01 | 2010-02-04 | Encryption Technologies Corporation Pty Ltd | A code carrier and an apparatus for reading a code carrier |
| CN202230497U (en) * | 2011-08-29 | 2012-05-23 | 东莞市安力华印刷有限公司 | Anti-counterfeit intelligent recognition system |
| CN103559475A (en) * | 2013-11-22 | 2014-02-05 | 广州优库电子有限公司 | Multi-wavelength laser modulation one-dimensional bar code reader and implementing mode thereof |
| WO2019064869A1 (en) * | 2017-09-29 | 2019-04-04 | コニカミノルタ株式会社 | Contactlessly readable tag, method for manufacture of contactlessly readable tag, identification device, and method for reading identifying information |
| WO2019065061A1 (en) * | 2017-09-29 | 2019-04-04 | コニカミノルタ株式会社 | Chipless rfid tag, tag reader, and rfid system |
-
2021
- 2021-03-31 CN CN202110343386.6A patent/CN112819123B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1020786A (en) * | 1996-07-04 | 1998-01-23 | Fuji Xerox Co Ltd | Labeled material and code label identification method |
| WO2010012046A1 (en) * | 2008-08-01 | 2010-02-04 | Encryption Technologies Corporation Pty Ltd | A code carrier and an apparatus for reading a code carrier |
| CN202230497U (en) * | 2011-08-29 | 2012-05-23 | 东莞市安力华印刷有限公司 | Anti-counterfeit intelligent recognition system |
| CN103559475A (en) * | 2013-11-22 | 2014-02-05 | 广州优库电子有限公司 | Multi-wavelength laser modulation one-dimensional bar code reader and implementing mode thereof |
| WO2019064869A1 (en) * | 2017-09-29 | 2019-04-04 | コニカミノルタ株式会社 | Contactlessly readable tag, method for manufacture of contactlessly readable tag, identification device, and method for reading identifying information |
| WO2019065061A1 (en) * | 2017-09-29 | 2019-04-04 | コニカミノルタ株式会社 | Chipless rfid tag, tag reader, and rfid system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112819123B (en) | 2022-07-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Ren et al. | A robust UHF near-field RFID reader antenna | |
| CN101789543B (en) | Multi-system and multi-band frequency RFID (Radio Frequency Identification) antenna | |
| TW200949710A (en) | UHF Radio-frequency label | |
| CN101667678B (en) | Radio frequency identification antenna | |
| KR20150072429A (en) | Electronic device and coil module | |
| CN103715499B (en) | Annular UHF near-field RFID reader-writer antenna | |
| CN112819123B (en) | Electromagnetic wave absorption code recognition system and method | |
| KR102199392B1 (en) | Radio frequency identification card with anti-metal effect | |
| CN105576358A (en) | Label antenna suitable for IT device | |
| Iliev et al. | Dual-band HF-UHF RFID tag antenna | |
| CN201238076Y (en) | High-frequency radio frequency recognition reader-writer antenna | |
| CN101060198A (en) | A design method for near-field working mode reader antenna | |
| CN202817177U (en) | Plane opening double-ring antenna of near-field RFID reader-writer used for UHF frequency range | |
| Roy et al. | Introduction to rfid systems | |
| CN202308314U (en) | Small-sized circular polarized antenna for RFID reader or radar | |
| CN106549210A (en) | The insensitive double-deck Chip-free label antenna of a kind of high power capacity and metal | |
| CN208738428U (en) | Broadband circle polarized RFID reader antenna | |
| CN206422216U (en) | The insensitive double-deck Chip-free label antenna of a kind of high power capacity and metal | |
| CN201527689U (en) | POS terminal device | |
| Lee et al. | Design of an Ultra‐Compact UHF Passive RFID Tag Antenna for a Medical Sample Tube | |
| CN101783441A (en) | Antenna device and radio frequency device | |
| CN203038312U (en) | RFID tag and antenna system thereof | |
| CN218586329U (en) | Coupling minor matters loaded dual-frenquency RFID antenna | |
| CN212541393U (en) | RFID tag | |
| CN208028209U (en) | A kind of handhold RFID radio-frequency antenna |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |