CN106203221A - A kind of quick search RFID tag identifier (TID) method - Google Patents
A kind of quick search RFID tag identifier (TID) method Download PDFInfo
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- CN106203221A CN106203221A CN201610566596.0A CN201610566596A CN106203221A CN 106203221 A CN106203221 A CN 106203221A CN 201610566596 A CN201610566596 A CN 201610566596A CN 106203221 A CN106203221 A CN 106203221A
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
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Abstract
The invention discloses a kind of quick search RFID tag identifier (TID) method, it relates to processing module that RFID tag (RFID) chip selects (Select) to order and the return module that response (Ack) is ordered.When performing mask (Mask) coupling that selection (Select) is ordered, mask (Mask) can be divided into two parts, an above part, named compatible portion, effect is selected label, and add an indicating bit, be used for distinguish be EPC C1G2 standard selection (Select) order, or with own order selection (Select) order；Rear portion, named command component, effect is the command code according to 4, carrys out the execution of select command.Once label receives selection (Select) order with command code, it will when processing response (Ack) order, return product electronic code (EPC) and tag identification number (TID).The present invention effectively solves the problem of time length of the tag identification number (TID) at inquiry RFID tag, faster than traditional inquiry mode 23 times.
Description
Technical field
The present invention relates to super high frequency radio frequency identification field, be specifically related to a kind of quick search RFID tag identifier
(TID) method.
Background technology
Along with the high speed development of Internet of Things, the application of super high frequency radio frequency identification label is more and more extensive, and wherein, hyperfrequency is penetrated
Frequency identification tag is widely used in anti-counterfeit field, and the tag identification number of super high frequency radio frequency identification label (TID) has uniqueness
With can not tamper, tag identification number (TID) is just joined together with electronic product code (EPC), is applied to false proof skill by people
In art, but, go inquiry tag identifier (TID) that the too much time can be expended by traditional method.Therefore, quick search radio frequency
Identify that tag identification number (TID) is the work efficiency that fundamentally improve super high frequency radio frequency identification label.
The serial number of RFID tag, is to deposit TID field in memory, and the data in this district be precoding and
Having uniqueness, this serial number is joined together with electronic product code (EPC), just serves false proof effect.
The generally flow process of inquiry RFID tag identifier is that radio-frequency identification reader/writer sends inquiry (Query) order,
Label returns 16 randoms number (RN16), and read write line sends response (Ack) order, label return electron product code (EPC), reads
Writing device and send request random number (Req_RN) order, label returns handle (Handle), and read write line sends reads (Read) order, mark
Sign and just return tag identification number (TID).
The time that antiforge function consumed is realized long according to the mode of traditional directory tag identification number (TID),
This is greatly lowered work efficiency.Therefore, above-mentioned problem is solved, it is achieved quick search RFID tag identifier
(TID) function or necessary.
Summary of the invention
The present invention is directed to above-mentioned technical problem, it is provided that a kind of quick search RFID tag identifier (TID) method.
The technical scheme is that
A kind of quick search RFID tag identifier (TID) method, utilizes the feature selecting (Select) to order, real
Existing RFID tag quickly returns tag identification number (TID) function, is mainly reflected in radio frequency identification label chip and processes selection
(Select) command module and radio frequency identification label chip process return module when response (Ack) is ordered.
Described radio frequency identification label chip processes and selects (Select) command module, is by selection (Select) order
Mask (Mask) parameter be divided into two parts to process, Part I is compatible portion, and Part II is command component.
Described compatible portion, is by the style number (Class ID) of 8, the manufacturer number (MDID) of 12 and the finger of 1
Show that position forms.
Described command component, is the command code for 4.
Described 8 style number (Class ID), the RFID tag for all EPC of meeting C1G2 standards is all
(11100010)2。
12 described manufacturers number (MDID), are distributed to chip manufacturer, for each chip manufacturer by EPCglobal tissue
For, its manufacturer number (MDID) has uniqueness.
Therefore, according to the effect selecting (Select) to order, label can be selected by different vendor according to demand, and
And the tag identification number (TID) of such label of quick search.
When mask (Mask) part is carried out serial matching, when detecting that indicating bit is 1, then it is assumed that mask
(Mask) parameter is to there is command component, then carry out command analysis by remaining 4；Otherwise, during if it is indicated that position is 0, then press EPC
Selection (Select) order of C1G2 standard processes.
Described indicating bit, can be 1 can also to be 0；Defined according to EPC C1G2 standard, in TID field, manufacturer number
(MDID) it is followed by as label model (TAG MODEL NUMBER).
Described label model (TAG MODEL NUMBER), by chip, manufacturer comes chip definition.The most permissible
The highest order of label model (TAG MODEL NUMBER) is carried out the coupling as indicating bit.
If the highest order of chip vendors dictate label model (TAG MODEL NUMBER) is 0, then be masked
(Mask), during coupling, check institute's rheme when being 0, be taken as processing the Select order of EPC C1G2 standard.
Described command analysis, if command analysis is correct order, is high level with regard to enabler flags position；Otherwise, recognize
For being selection (Select) order processing EPC C1G2 standard, and mask (Mask) mates unsuccessful.
After at mask (Mask), the match is successful, label carries out action (action), if action (action) is
When 101, then the RFID tag that the match is successful will be taken inventory mark and forward B to.
Radio-frequency identification reader/writer sends inquiry (Query) order, and target (target) parameter is set to 1, the most at this moment
Just choose and take inventory the RFID tag being masked as B.
Radio frequency identification label chip processes return module during response (Ack) order, is to receive response (Ack) order
Afterwards, RFID tag carries out data return, if be detected that flag bit is high level, will return product electronic code
(EPC) and tag identification number (TID) give read write line；Otherwise, just return by EPC C1G2 standard.
Accompanying drawing explanation
Fig. 1-A is the mode of traditional inquiry tag identifier
Fig. 1-B is the mode of inquiry tag identifier of the present invention
Fig. 2-A is selection (Select) command format of EPC C1G2 standard
Fig. 2-B is selection (Select) command format of the present invention
Fig. 3 is the flow process that the present invention performs that selection (Select) is ordered
Detailed description of the invention
Below in conjunction with the accompanying drawings and detailed description of the invention, the present invention is described in further detail.
As shown in Fig. 1-A, the method for typical inquiry tag identifier needs to carry out four communications.
As shown if figure 1-b, the mode of the quick search tag identification number that the present invention proposes, it is only necessary to carry out three communications,
Compared with the typical query method shown in Fig. 1-A, efficiency is traditional 2-3 times.
As shown if figure 1-b, the method for the inquiry tag identifier of the present invention is to need to add before inquiry (Query) order
Add selection (Select) order.
Select (Select) order to have priority, and this order can also select required label to carry out communication
With mask (Mask) parameter in this order, there is motility, own information can be added.
As shown in Fig. 2-A, for selection (Select) command format of EPC C1G2 standard, order about selecting (Select)
In the specific definition of each parameter, refer to EPC C1G2 standard.It addition, when performing selection (Select) order, can be not
Under conditions of violating EPC C1G2 standard, in mask (Mask) parameter, add own information, be used for realizing quick search mark
Sign the function of identifier (TID).
Each parameter value as shown in fig. 2-b, when realizing the function of quick search tag identification number, in Select order.
Wherein, it should be noted that mask (Mask) parameter is divided into two parts, and Part I is compatible portion, Part II is life
Make part.
Compatible portion is to the label selecting manufacturer number and mated to carry out communication for read write line, and can make this part
Label performs the function of quick search tag identification number.Compatible portion include style number (Class ID), manufacturer number (MDID) and
Indicating bit.
Style number (Class ID) is 8 bit data, EPCglobal organize defined, is worth for (11100010)2。
Manufacturer number (MDID) is 12 bit data, EPCglobal tissue distribute to each chip manufacturer, for each
For chip manufacturer, its manufacturer number (MDID) has uniqueness.Such as, the RFID tag of brilliant logical science and technology, manufacturer number
For (000000100110)2Or (100000100110)2.Read write line can be according to this characteristic of manufacturer number (MDID) uniqueness, and it is right to come
RFID tag carries out screening communication.
Indicating bit is 1 bit data, and this bit data can be 1 can also to be 0.Defined, at TID according to EPC C1G2 standard
Qu Zhong, manufacturer number (MDID) is followed by as label model (TAG MODEL NUMBER).
Described label model (TAG MODEL NUMBER), by chip, manufacturer comes chip definition.The most permissible
The highest order of label model (TAG MODEL NUMBER) is carried out the coupling as indicating bit.
If the highest order of chip vendors dictate label model (TAG MODEL NUMBER) is 0, then be masked
(Mask), during coupling, check indicating bit when being 0, be taken as selection (Select) order of EPC C1G2 standard, be otherwise
1, then it is assumed that be selection (Select) order with own order, then command component can be resolved, perform order institute
Corresponding function.
Command component only comprises the command code of 4, and as shown in fig. 2-b, command code is (0001)2, resolve to quickly
Inquiry tag identifier order, named SpeedID order.
The execution flow process of quick search tag identification number, as shown in Figure 3.
Mask (Mask) parameter, when receiving selection (Select) order, can be carried out by traditional RFID tag
Join, afterwards, just according to whether the match is successful, perform action (Action) parameter and operate accordingly.
Mask (Mask) is divided into compatible portion and command component by the present invention.
After receiving selection (Select) order, can be by mask (Mask) and memory bank (Membank) and pointer
(Pointer) data among access section specified by carry out serial matching.Style number (Class ID) due to compatible portion
With 20 altogether, manufacturer number (MDID), during so matching the 21st, carry out judging whether this value is 1.If 1, just
It is considered with command component, otherwise, just orders by the selection (Select) of EPC C1G2 standard and process.
If the match is successful for the compatible portion of mask (Mask), just resolves command component, it is judged that whether order is
SpeedID order, correctly, is high level with regard to enabler flags position, and performing ACTION is (101)2Operation.
Action (Action) value is (101)2Representing, if the match is successful for mask (Mask), then RFID tag is by dish
Deposit mark and forward B to, otherwise, be maintained for current taking inventory mark.
Afterwards, radio-frequency identification reader/writer can send inquiry (Query) order, wherein, the target in inquiry (Query) order
(Target) parameter is set to 1, then represent the most just to filter out and take inventory the label being masked as B.
When receiving response (Ack) order, it is judged that whether flag bit is high level, chooses whether return electron product
Code (EPC) and tag identification number (TID)；After returning successfully, flag signal is set to the most again low level.
Claims (13)
1. one kind has RFID tag (RFID) chip quickly returning tag identification number (TID), it is characterised in that bag
Include: radio frequency identification label chip processes and selects (Select) command module and radio frequency identification label chip to process response (Ack) life
Return module when making.
One the most according to claim 1 has the RFID tag (RFID) quickly returning tag identification number (TID)
Chip, it is characterised in that described radio frequency identification label chip processes and selects (Select) command module, sends out processing read write line
During selection (Select) order sent, mask (Mask) parameter selected in (Select) order can be divided into two parts, first
Part is compatible portion, and Part II is command component.
One the most according to claim 1 has the RFID tag (RFID) quickly returning tag identification number (TID)
Chip, it is characterised in that the compatible portion of mask (Mask) parameter in described selection (Select) order, and described part is also
Including the style number of 8 (Class ID), the manufacturer number (MDID) of 12 and the indicating bit of 1.
One the most according to claim 1 has the RFID tag (RFID) quickly returning tag identification number (TID)
Chip, it is characterised in that the command component of mask (Mask) parameter in described selection (Select) order, and described part is
The command code of 4.
One the most according to claim 1 has the RFID tag (RFID) quickly returning tag identification number (TID)
Chip, it is characterised in that described radio frequency identification label chip processes and selects (Select) command module, sends out processing read write line
During selection (Select) order sent, the compatible portion of mask (Mask) parameter being carried out serial matching, the match is successful just chooses
Label, then perform the command code of command component, enabler flags position is high level.
One the most according to claim 1 has the RFID tag (RFID) quickly returning tag identification number (TID)
Chip, it is characterised in that described radio frequency identification label chip processes return module during response (Ack) order, and described mould
Block, if be detected that flag bit, will return product electronic code (EPC) and tag identification number (TID) to read write line.
7. quick search RFID tag identifier (TID) method, it is characterised in that comprise the steps:
(1) action (Action) parameter in (Select) order, is selected to be set to (101)2, memory bank (Membank) parameter is
(10)2(TID field), pointer (Pointer) parameter is (0000000)2, length (Length) parameter is (00011001)2, mask
(Mask) style number (Class ID) of the compatible portion in is (11100010)2, manufacturer number (MDID) is
(000000100110)2Or (100000100110)2, indicating bit is 1；The command code of command component is (0001)2；
(2), RFID tag receive selection (Select) order after, can will select (Select) order in mask
(Mask) (00000000) of the TID field of memorizer in parameter and radio frequency identification label chip2Address proceeds by serial matching；
(3), serial matching time, when matching the 21st (indicating bit), if institute's rheme is 1, then it is assumed that be mask (Mask)
There is command component, otherwise it is assumed that be the Select order of EPC C1G2 standard；
(4), in described step 3, indicating bit is 1, then explained by remaining 4 order of the bit codes, if described command code
Being correct, then it is assumed that select the success of (Select) commands match, the flag bit enabling quickly return tag identification number is high level；
(5), radio-frequency identification reader/writer sends inquiry (Query) order, and target (Tagter) is set to 1, so that it may choose this portion
Divide RFID tag；
(6), finally, radio-frequency identification reader/writer sends response (Ack) order, and RFID tag is judged as whether flag bit is high
Level, chooses whether to need to return product electronic code (EPC) and tag identification number (TID).
A kind of quick search RFID tag identifier (TID) method the most according to claim 7, it is characterised in that
Style number (Class ID) and manufacturer number (MDID) in described step 1 have uniqueness.
A kind of quick search RFID tag identifier (TID) method the most according to claim 7, it is characterised in that
Described style number (Class ID) is (11100010)2, then it represents that for meeting the RFID tag of EPC C1G2 standard；Institute
The manufacturer number (MDID) stated is distributed to chip manufacturer by EPCglobal tissue, and such as, the RFID tag of brilliant logical science and technology is
(000000100110)2Or (100000100110)2；Described action (Action) is (101)2, then it represents that work as radio frequency identification marking
Sign with the compatible portion of mask (Mask) the match is successful time, the flag bit of taking inventory of RFID tag forwards B to.
A kind of quick search RFID tag identifier (TID) method the most according to claim 7, it is characterised in that
In described step 5, described target (Tagter) is set to 1, represents that radio-frequency identification reader/writer selects to take inventory the radio frequency that flag bit is B
Identify that label carries out communication.
11. a kind of quick search RFID tag identifier (TID) methods according to claim 7, it is characterised in that
Indicating bit in described step 3, described indicating bit, can be 1 can also to be 0；Defined according to EPC C1G2, at TID field
In, manufacturer number (MDID) is followed by as label model (TAG MODEL NUMBER).
12. a kind of quick search RFID tag identifier (TID) methods according to claim 7, it is characterised in that
Described label model (TAG MODEL NUMBER), by chip, manufacturer comes chip definition；So can be label type
The highest order of number (TAG MODEL NUMBER) carrys out the coupling as indicating bit.
13. a kind of quick search RFID tag identifier (TID) methods according to claim 7, it is characterised in that
When the highest order of chip vendors dictate label model (TAG MODEL NUMBER) is 0, then when being masked (Mask) coupling,
Check indicating bit when being 0, be taken as the Select order of EPC C1G2 standard, be otherwise 1, then it is assumed that be with own life
The Select order of order, then can resolve command component, performs the function corresponding to order.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016201317403 | 2016-02-19 | ||
| CN201620131740 | 2016-02-19 |
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| CN106203221A true CN106203221A (en) | 2016-12-07 |
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| CN201610566596.0A Withdrawn CN106203221A (en) | 2016-02-19 | 2016-07-15 | A kind of quick search RFID tag identifier (TID) method |
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| CN109472177A (en) * | 2018-11-06 | 2019-03-15 | 南京南瑞微电子技术有限公司 | A kind of technique for taking inventory that can read electronic tag TID |
| CN113033224A (en) * | 2019-12-25 | 2021-06-25 | 菜鸟智能物流控股有限公司 | Radio frequency tag reading and writing device and radio frequency tag reading and writing method |
| CN113658631A (en) * | 2021-10-20 | 2021-11-16 | 成都凯路威电子有限公司 | Hybrid UHFRFID memory and information storage method |
| CN114218974A (en) * | 2022-02-14 | 2022-03-22 | 山东华翼微电子技术股份有限公司 | Accurate positioning device and method for passive RFID (radio frequency identification) tag |
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Cited By (7)
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| CN113658631A (en) * | 2021-10-20 | 2021-11-16 | 成都凯路威电子有限公司 | Hybrid UHFRFID memory and information storage method |
| CN113658631B (en) * | 2021-10-20 | 2022-01-25 | 成都凯路威电子有限公司 | Hybrid UHFRFID memory and information storage method |
| CN114218974A (en) * | 2022-02-14 | 2022-03-22 | 山东华翼微电子技术股份有限公司 | Accurate positioning device and method for passive RFID (radio frequency identification) tag |
| CN114218974B (en) * | 2022-02-14 | 2022-06-07 | 山东华翼微电子技术股份有限公司 | Precise positioning device and method for passive RFID tag |
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