CN111199161A - Matrix-based multiple RFID or NFC reader interference solution device and method - Google Patents
Matrix-based multiple RFID or NFC reader interference solution device and method Download PDFInfo
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- 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
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10019—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers.
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0032—Apparatus for automatic testing and analysing marked record carriers, used for examinations of the multiple choice answer type
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Abstract
The invention discloses a matrix-based multiple RFID or NFC reader interference solving device which comprises a radio frequency reader general board, a control unit and a power module, wherein the radio frequency reader general board is composed of N radio frequency reader substrates, a radio frequency reader is fixedly installed on each radio frequency reader substrate, and the control unit is in bidirectional connection with a tag wireless communication unit. The device and the method for solving the interference of the multiple RFID or NFC readers based on the matrix can realize real-time reading by maintaining the set distance of the RFID or NFC readers, the tags are set to be accurate positions on the contact surface, and the tags are distinguished among all groups, so that the interference is minimized, multiple wireless communication identification tags can be distinguished, the application range of the tags can be expanded, and the accurate information of the tags can be transmitted according to the technology for distinguishing the wireless communication tags in multiple identification forms.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to a matrix-based multiple RFID or NFC reader interference solving device and method.
Background
Radio Frequency Identification (RFID) technology, also called radio frequency identification (rfld), is a communication technology that can identify a specific target and read and write related data through radio signals without establishing mechanical or optical contact between an identification system and the specific target, the radio frequency is generally microwave, 1 to 100GHz, and is suitable for short-distance identification communication, and RFID readers are also mobile and fixed, and the RFID technology is widely applied at present, for example: library, gate inhibition system, food safety tracing, etc., near field communication is a new technology, devices using NFC technology can exchange data under the condition of being close to each other, is integrated and evolved from non-contact Radio Frequency Identification (RFID) and interconnection and intercommunication technology, mobile payment, electronic ticketing, gate inhibition, mobile identity identification, anti-counterfeiting and other applications are realized by utilizing a mobile terminal through integrating functions of an induction type card reader, an induction type card and point-to-point communication on a single chip, Radio Frequency Identification (RFID) is a wireless communication technology, a specific target can be identified and relevant data can be read and written through radio signals without establishing mechanical or optical contact between the identification system and the specific target, the radio signals transmit the data from a label attached to an article through an electromagnetic field which is adjusted into radio frequency so as to automatically identify and track the article, some tags can obtain energy from the electromagnetic field emitted by the identifier during identification, do not need batteries, have a power supply and can actively emit radio waves, contain electronically stored information and can be identified within a few meters, and unlike bar codes, radio frequency tags do not need to be within the line of sight of the identifier and can also be embedded in the tracked object.
The invention can solve the problem that the interference can be controlled by separating a plurality of layers in the sequence of front or back or a plurality of layers such as 1 layer, 2 layers, 3 layers and the like by maintaining the arrangement distance of an RFID or NFC reader, can read in real time, sets the label at the accurate position on the contact surface, distinguishes among groups to minimize the interference, can distinguish various wireless communication identification labels, and can expand the application range Warehouse management, precision measurement, crop management and the like.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a device and a method for solving the interference of multiple RFID or NFC readers based on a matrix, which solve the problems that the prior multiple RFID and NFC readers are not capable of accurately reading due to interference caused by multiple identification of each label under the condition that the multiple RFID and NFC readers are generally arranged in a plate shape.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the device comprises a radio frequency reader general board, a control unit and a power module, wherein the radio frequency reader general board is composed of N radio frequency reader substrates, a radio frequency reader is fixedly installed on each radio frequency reader substrate, the control unit is in bidirectional connection with a tag wireless communication unit, the tag wireless communication unit is in bidirectional connection with a data analysis processing unit, and the data analysis processing unit is in bidirectional connection with the control unit.
Preferably, the data analysis processing unit comprises a substrate grouping matrix calculation module and a comprehensive calculation analysis module, and an output end of the substrate grouping matrix calculation module is connected with an input end of the comprehensive calculation analysis module.
Preferably, the tag wireless communication unit is composed of N sub-tag communication modules, and one sub-tag communication module corresponds to one radio frequency reader one to one.
Preferably, the input end of the control unit is electrically connected with the output end of the power module, and the output end of the power module is electrically connected with the input end of the tag wireless communication unit.
Preferably, the output end of the power supply module is electrically connected with the input end of the data analysis processing unit.
The invention also discloses a method for solving the interference of the matrix-based multiple RFID or NFC readers, which specifically comprises the following steps:
s1, dividing the radio frequency reader substrate formed in a matrix form into a front side and a rear side through the control unit, and dividing the radio frequency reader substrate into groups according to the singular number or the even number of radio frequency readers so that the groups have no interference, and under the condition of reading a plurality of RFID or NFC, the interference between the radio frequency readers caused by the distance difference between the working radio frequency readers is reduced, and the information identification accuracy of the RFID or the NFC can be improved;
s2, the space between the radio frequency readers is different according to the size and the arrangement of the radio frequency readers, so that the limitation is not formed, the radio frequency readers are not arranged in parallel, and the interference caused by the close distance between the readers can be prevented;
s3, in the case of multilayer fabrication of the rf reader substrate, the number of groups increases with the number of layers, and the pitch between the tags increases, and the distinction can be made clearly, so that the number of errors in information transmission is reduced.
S4, each radio frequency reader substrate is sensed in a grouping mode, under the condition that the radio frequency readers corresponding to the sub-tag communication modules in the tag wireless communication units which are distinguished in the grouping mode read information, the radio frequency readers on the radio frequency reader substrates are subjected to odd and even number calculation and identification through the substrate grouping matrix calculation module in the data analysis processing unit, then the data which are calculated and identified by the radio frequency reader substrates are subjected to integration and analysis through the comprehensive calculation and analysis module, and finally the information data which are subjected to integration and analysis are transmitted to the control unit, so that the interference removal identification of the multi-radio frequency identification is completed, and accurate information is provided.
(III) advantageous effects
The invention provides a matrix-based multiple RFID or NFC reader interference solution device and method. Compared with the prior art, the method has the following beneficial effects: the matrix-based multiple RFID or NFC reader interference solution device and method are characterized in that a radio frequency reader main board is composed of N radio frequency reader substrates, each radio frequency reader substrate is fixedly provided with a radio frequency reader, a control unit is in bidirectional connection with a tag wireless communication unit, the tag wireless communication unit is in bidirectional connection with a data analysis processing unit, the data analysis processing unit is in bidirectional connection with the control unit, the data analysis processing unit comprises a substrate grouping matrix calculation module and a comprehensive calculation analysis module, the output end of the substrate grouping matrix calculation module is connected with the input end of the comprehensive calculation analysis module, the tag wireless communication unit is composed of N sub-tag communication modules, one sub-tag communication module corresponds to one radio frequency reader one to one, and the input end of the control unit is electrically connected with the output end of a power supply module, the output end of the power supply module is electrically connected with the input end of the tag wireless communication unit, the output end of the power supply module is electrically connected with the input end of the data analysis processing unit, interference can be controlled by separating a plurality of layers in the front or the back or the sequence of a plurality of layers such as 1 layer, 2 layers, 3 layers and the like through maintaining the set interval of the RFID or NFC reader, real-time reading can be realized, the tags are set to be accurate positions on the contact surface, and the groups are distinguished, so that the interference is minimized, a plurality of wireless communication identification tags can be distinguished, the application range of the wireless communication identification tags can be expanded, and accurate information of the tags can be transmitted according to the wireless communication tag distinguishing technology with multiple recognition forms of the invention, so that the wireless communication tag distinguishing technology can be applied to distinguishing chessmen applied on an electronic table game or people, warehouse management, precision measurement, people, Crop management, etc.
Drawings
FIG. 1 is a schematic block diagram of the architecture of the system of the present invention;
FIG. 2 is a schematic structural diagram of a substrate of the RF reader of the present invention;
FIG. 3 is a schematic structural diagram of a radio frequency reader assembly according to the present invention;
FIG. 4 is a block diagram of a process for perceptual analysis according to the present invention.
In the figure, 1 a radio frequency reader main board, 2 a control unit, 3 a power module, 4 a radio frequency reader substrate, 5 a radio frequency reader, 6 a tag wireless communication unit, 7 a data analysis processing unit, 71 a substrate grouping matrix calculation module, 72 a comprehensive calculation analysis module and 8 a sub-tag communication module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, an embodiment of the present invention provides a technical solution: the utility model provides a multiple RFID or NFC reader interfere solution device based on matrix, including radio frequency reader total board 1, the control unit 2 and power module 3, radio frequency reader total board 1 comprises N radio frequency reader base plate 4, and the equal fixed mounting of every radio frequency reader base plate 4 has radio frequency reader 5, control unit 2 realizes two-way connection with label wireless communication unit 6, and label wireless communication unit 6 realizes two-way connection with data analysis processing unit 7, data analysis processing unit 7 realizes two-way connection with the control unit 2.
In the present invention, the data analysis processing unit 7 includes a substrate grouping matrix calculation module 71 and a comprehensive calculation analysis module 72, and an output end of the substrate grouping matrix calculation module 71 is connected to an input end of the comprehensive calculation analysis module 72.
In the invention, the tag wireless communication unit 6 is composed of N sub-tag communication modules 8, and one sub-tag communication module 8 corresponds to one radio frequency reader 5.
In the invention, the input end of the control unit 2 is electrically connected with the output end of the power module 3, and the output end of the power module 3 is electrically connected with the input end of the tag wireless communication unit 6.
In the invention, the output end of the power supply module 3 is electrically connected with the input end of the data analysis processing unit 7.
The invention also discloses a method for solving the interference of the matrix-based multiple RFID or NFC readers, which specifically comprises the following steps:
s1, dividing the rf reader substrate 4 formed in a matrix form into a front side and a rear side by the control unit 2, and then dividing the groups according to the odd number or even number of rf readers 5 so that there is no interference between the groups, and in case of reading a plurality of RFIDs or NFC, the interference between the rf readers 5 caused by the distance difference between the working rf readers 5 is reduced, and the information recognition accuracy of the RFIDs or NFC is improved;
s2, the space between the radio frequency readers 5 is different according to the size and the arrangement of the radio frequency readers 5, so that the limitation is not formed, the radio frequency readers 5 are not arranged in parallel, and the interference caused by the close distance between the readers can be prevented;
s3, in the case of manufacturing the rf reader substrate 4 in multiple layers, the number of groups increases with the number of layers, and the pitch between the tags increases, and the distinction can be made clearly, so that the number of errors in information transmission is reduced.
S4, group sensing each rf reader substrate 4, performing singular and even number calculation and identification on the rf readers 5 on each rf reader substrate 4 through the substrate grouping matrix calculation module 71 in the data analysis processing unit 7 under the condition that the rf readers 5 corresponding to the sub-tag communication modules 8 in the tag wireless communication unit 6 for group discrimination read information, then performing integrated analysis on the data calculated and identified by each rf reader substrate 4 through the comprehensive calculation and analysis module 72, and finally transmitting the information data after integrated analysis to the control unit 2, thereby completing the interference elimination and identification of multiple rf identifications and further providing accurate information.
To sum up the above
The invention can realize that the interference is controlled by separating a plurality of layers in front or back or a plurality of layers such as 1 layer, 2 layers, 3 layers and the like in sequence by maintaining the set distance of the RFID or NFC reader, the real-time reading can be carried out, the label is set to be an accurate position on the contact surface, and the distinguishing among all groups is carried out, so the interference is minimized, a plurality of wireless communication identification labels can be distinguished, and the application range of the wireless communication identification labels is expanded.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A matrix-based multiple RFID or NFC reader interference solution device comprises a radio frequency reader general board (1), a control unit (2) and a power supply module (3), and is characterized in that: the radio frequency reader general board (1) is composed of N radio frequency reader substrates (4), a radio frequency reader (5) is fixedly mounted on each radio frequency reader substrate (4), the control unit (2) is in bidirectional connection with the tag wireless communication unit (6), the tag wireless communication unit (6) is in bidirectional connection with the data analysis processing unit (7), and the data analysis processing unit (7) is in bidirectional connection with the control unit (2).
2. A matrix-based multiple RFID or NFC reader interference solution device according to claim 1, characterized in that: the data analysis processing unit (7) comprises a substrate grouping matrix calculation module (71) and a comprehensive calculation analysis module (72), and the output end of the substrate grouping matrix calculation module (71) is connected with the input end of the comprehensive calculation analysis module (72).
3. A matrix-based multiple RFID or NFC reader interference solution device according to claim 1, characterized in that: the tag wireless communication unit (6) is composed of N sub-tag communication modules (8), and one sub-tag communication module (8) is in one-to-one correspondence with one radio frequency reader (5).
4. A matrix-based multiple RFID or NFC reader interference solution device according to claim 1, characterized in that: the input end of the control unit (2) is electrically connected with the output end of the power supply module (3), and the output end of the power supply module (3) is electrically connected with the input end of the label wireless communication unit (6).
5. A matrix-based multiple RFID or NFC reader interference solution device according to claim 1, characterized in that: the output end of the power supply module (3) is electrically connected with the input end of the data analysis processing unit (7).
6. Method of a matrix-based multiple RFID or NFC reader interference solution device according to any of the claims 1-5 characterized in that: the method specifically comprises the following steps:
s1, dividing a radio frequency reader substrate (4) formed in a matrix form into a front side and a rear side through a control unit (2), dividing the groups according to a single number or an even number of radio frequency readers (5) so that the groups have no interference, and reducing the interference between the radio frequency readers (5) caused by the distance difference between the working radio frequency readers (5) under the condition of reading a plurality of RFID or NFC, so that the information identification accuracy of the RFID or NFC can be improved;
s2, the space between the radio frequency readers (5) is different according to the size and the arrangement of the radio frequency readers (5), so that the limitation is not formed, the radio frequency readers (5) are not arranged in parallel, and the interference caused by the close distance between the readers can be prevented;
s3, when the radio frequency reader substrate (4) is manufactured in a multilayer mode, the number of groups increases along with the number of layers, the direct distance between labels also increases, the distinction can be still clear, and therefore errors of information transmission are reduced;
s4, each radio frequency reader substrate (4) is subjected to grouping perception, under the condition that the radio frequency readers (5) corresponding to the sub-tag communication modules (8) in the tag wireless communication units (6) which are grouped and distinguished read information, the radio frequency readers (5) on the radio frequency reader substrates (4) are subjected to singular and even number calculation and identification through the substrate grouping matrix calculation module (71) in the data analysis processing unit (7), then the data calculated and identified by the radio frequency reader substrates (4) are subjected to integration and analysis through the comprehensive calculation and analysis module (72), and finally the information data subjected to integration and analysis are transmitted to the control unit (2), so that the interference removal identification of multiple radio frequency identifications is completed, and accurate information is provided.
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| Application Number | Priority Date | Filing Date | Title |
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| KR20180143462 | 2018-11-20 | ||
| KR10-2018-0143462 | 2018-11-20 |
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| CN201811459402.2A Pending CN111199161A (en) | 2018-11-20 | 2018-11-30 | Matrix-based multiple RFID or NFC reader interference solution device and method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090051477A (en) * | 2007-11-19 | 2009-05-22 | 아시아나아이디티 주식회사 | Multi rfid readers interference control system |
| CN103984971A (en) * | 2014-05-31 | 2014-08-13 | 范志广 | Wireless positioning method and system based on antenna array phase difference direction-finding radio frequency identification (RFID) |
| KR20150018722A (en) * | 2013-08-09 | 2015-02-24 | (주)니오알에프 | RFID system for providing the Social Network Grouping service in a special space and method thereof |
| CN107077587A (en) * | 2014-09-03 | 2017-08-18 | 美卓流体控制有限公司 | Passive RFID sensors label and RFID reader |
| CN209182834U (en) * | 2018-11-20 | 2019-07-30 | 候本株式会社 | A kind of multiple RF ID or NFC reader Interference resolution device based on matrix |
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- 2018-11-30 CN CN201822002656.3U patent/CN209182834U/en active Active
- 2018-11-30 CN CN201811459402.2A patent/CN111199161A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090051477A (en) * | 2007-11-19 | 2009-05-22 | 아시아나아이디티 주식회사 | Multi rfid readers interference control system |
| KR20150018722A (en) * | 2013-08-09 | 2015-02-24 | (주)니오알에프 | RFID system for providing the Social Network Grouping service in a special space and method thereof |
| CN103984971A (en) * | 2014-05-31 | 2014-08-13 | 范志广 | Wireless positioning method and system based on antenna array phase difference direction-finding radio frequency identification (RFID) |
| CN107077587A (en) * | 2014-09-03 | 2017-08-18 | 美卓流体控制有限公司 | Passive RFID sensors label and RFID reader |
| CN209182834U (en) * | 2018-11-20 | 2019-07-30 | 候本株式会社 | A kind of multiple RF ID or NFC reader Interference resolution device based on matrix |
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