CN109472177A - A kind of technique for taking inventory that can read electronic tag TID - Google Patents
A kind of technique for taking inventory that can read electronic tag TID Download PDFInfo
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- CN109472177A CN109472177A CN201811310371.4A CN201811310371A CN109472177A CN 109472177 A CN109472177 A CN 109472177A CN 201811310371 A CN201811310371 A CN 201811310371A CN 109472177 A CN109472177 A CN 109472177A
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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
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Abstract
The invention discloses the technique for taking inventory that one kind can read electronic tag TID, reader sends ACK order to electronic tag, and the ACK order is made of 16 random number R N16 that command field and the random number selected send for the electronic tag of the minimum value (i.e. random number is 0) in the preset range；After electronic tag receives the ACK order, if parsing command field is 01, reader is reflected to by No. EPC of electronic tag；If parsing command field is 10, then reader is reflected to by No. TID of electronic tag；If parsing command field is 11, then it is reflected to reader together by No. EPC of electronic tag and No. TID.This method can be in reader when taking inventory order, and No. TID of label, also feedback arrives reader end simultaneously.
Description
Technical field
The present invention relates to the technique for taking inventory that one kind can read electronic tag TID, belong to technical field of RFID.
Background technique
RFID Radio Frequency Identification Technology is currently widely used in society, and main application field is logistics, warehouse, intelligent ID
Card, expressway tol lcollection etc..One typical UHF RFID system generally includes a RFID reader and multiple electronics marks
Label, RFID reader is by sending reading order to electronic tag, to read the electric product coding in electronic tag
Then (Electronic Product Code, EPC) number is uploaded to background system for No. EPC and completes No. EPC corresponding assets
Validation of information.
No. EPC is unique for each electronic tag, while there are also another labels to know inside electronic tag
Alias TID (Tag Identifer), No. TID be label identity card, equally have uniqueness, can be used as label anti-counterfeit mark
Know.In practical applications, when using RFID reader make an inventory label when, typically just read out No. EPC, read without going
TID further judges the true and false of label.For No. TID, according to ISO18000-6C agreement, taking inventory order is that can not read TID
Number, it needs to access TID again by reading order to label after taking inventory to read.It, can be with when number of labels is less
No. EPC taken inventory is manually selected on reader, then selection reads TID field to obtain, but when there are many number of labels, such as
Fruit storehouse batching delivery storage, it is such to read TID inefficiency, heavy workload, it is therefore necessary to design one by one manually
A kind of new technique for taking inventory comes quick obtaining TID.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides the sides of taking inventory that one kind can read electronic tag TID
Method, this method can be in readers when taking inventory order, and No. TID of label, also feedback arrives reader end simultaneously.More traditional elder generation
Take inventory No. EPC, No. TID method then read by read command, single label obtain TID rate can fast 2 times or more,
Obtaining TID efficiency under batch label scene then can be higher.
To solve the above problems, the technical solution used in the present invention is:
A kind of technique for taking inventory that can read electronic tag TID, comprising the following steps:
S1, reader send Select order, the mark of taking inventory of all electronic tags are set A；
S2, reader send Query order, and all marks of taking inventory is selected to be taken inventory for the electronic tag of A；
S3, selected electronic tag select a random number in a preset range, if the random number selected is described
Minimum value in preset range then issues 16 random number R N16 to reader；
S4, reader receive 16 that the random number selected sends for the electronic tag of the minimum value in the preset range
Position random number R N16, and whether judge RN16 abnormal, if step S3 is then repeated, if otherwise entering step S5；
S5, reader send ACK order to electronic tag, and the ACK order is by command field (command field) and choosing
The random number selected is 16 random number R N16 composition that the electronic tag of the minimum value in the preset range is sent；
S6, after electronic tag receives the ACK order, if parsing command field is 01, by electronic tag
No. EPC is reflected to reader；If parsing command field is 10, then reader is reflected to by No. TID of electronic tag；If
Parsing command field is 11, then is reflected to reader together for No. EPC of electronic tag and No. TID；
S7 judges whether there remains electronic tag in selected electronic tag, if then entering step S8, if otherwise tying
Line journey；
S8, reader, which sends adjustment instruction, makes remaining electronic tag depreciation, until there is electricity in remaining electronic tag
The random number of subtab is zero, and repeats step S4.
In step s 4, if the random number for having multiple electronic tag selections is the minimum value in preset range, this is several
A electronic tag sends 16 random number R N16 to reader, and the transmission channel between electronic tag and reader is same
Time can only transmit 16 random number R N16, so passing simultaneously in 16 random number R N16 that these electronic tags are sent
During transporting to reader, it will cause 16 random number R N16 to occur in transmission process abnormal.
Further technical solution is, the selected electronic tag includes a slot counter, in Query order
Parameter Q comprising slot counter, then the preset range is [0,2Q- 1], the minimum value in the preset range is 0, in step
In S3, the random number of each selected electronic tag selection is fitted into the slot counter of the selected electronic tag.
Further technical solution is that the electronic tag is RFID electronic label.
Method of the invention can be in reader when taking inventory order, and No. TID of label, also feedback arrives reader simultaneously
End.More traditional first to take inventory No. EPC, then in the method for reading No. TID by read command, single label obtains TID rate can
With fast 2 times or more, obtaining TID efficiency under batch label scene then can be higher.
Detailed description of the invention
Fig. 1 is the flow diagram of this method.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in Figure 1, a kind of technique for taking inventory that can read electronic tag TID, comprising the following steps:
S1, reader send Select order, the mark of taking inventory of all electronic tags are set A；The order is mainly to electricity
Subtab is selected, and the flag bit of label is set or changed.After label receives the SELECT order of reader, according to SELECT
The state of setting itself is specified in order, but does not return to any data to reader.The electronic tag is RFID electronic label.
S2, reader send Query order, and all marks of taking inventory is selected to be taken inventory for the electronic tag of A；It is described selected
In electronic tag include a slot counter, include the parameter Q of slot counter in Query order.
S3, selected electronic tag select a random number in a preset range, and the preset range is [0,2Q-
1], the random number of each selected electronic tag selection is fitted into the slot counter of the selected electronic tag, if choosing
The random number selected is the minimum value (i.e. random number is 0) in the preset range, then issues 16 random numbers to reader
RN16。
S4, reader receive the random number that selects as the electronics of the minimum value (i.e. random number is 0) in the preset range
16 random number R N16 that label is sent, and whether judge RN16 abnormal, if step S3 is then repeated, if otherwise entering step
S5；If the random number for having multiple electronic tags to select is the minimum value (i.e. random number is 0) in preset range, these electricity
Subtab sends 16 random number R N16 to reader, and the transmission channel same time between electronic tag and reader
16 random number R N16 can only be transmitted, thus these electronic tags send 16 random number R N16 simultaneous transmissions extremely
During reader, it will cause 16 random number R N16 to occur in transmission process abnormal.
S5, reader send ACK order to electronic tag, and the ACK order is by command field (command field) and choosing
The random number selected is 16 random numbers that the electronic tag of the minimum value (i.e. random number is 0) in the preset range is sent
RN16 composition；
S6, after electronic tag receives the ACK order, if parsing command field is 01, by electronic tag
No. EPC is reflected to reader；If parsing command field is 10, then reader is reflected to by No. TID of electronic tag；If
Parsing command field is 11, then is reflected to reader together for No. EPC of electronic tag and No. TID；
S7 judges whether there remains electronic tag in selected electronic tag, if then entering step S8, if otherwise tying
Line journey；
S8, reader, which sends adjustment instruction, makes remaining electronic tag depreciation, until there is electricity in remaining electronic tag
The random number of subtab is zero, and repeats step S4.
A specific example is named to illustrate the present invention, so that those skilled in the art better understood when
Technical solution of the present invention:
Reader sends Select order, and the mark of taking inventory of all electronic tags is set A；Reader sends Query order,
All marks of taking inventory are selected to be taken inventory for the electronic tag of A；That is electronic tag A, electronic tag B and electronic tag C are selected
In.Electronic tag A, electronic tag B and electronic tag C receive the Query order, it is assumed that Q=2, then preset range be [0,
3].Electronic tag A, electronic tag B and electronic tag C select a random number in preset range [0,3], it is assumed that electronics mark
The random number that label A is selected is 0, and the random number that electronic tag B is selected is 1, and the random number that electronic tag C is selected is 0.
The random number selected is sent out to the reader simultaneously for the electronic tag i.e. electronic tag A and electronic tag C of zero value
16 random number R N16 are sent, and the transmission channel same time between electronic tag and reader can only transmit a parameter,
So during RN16 simultaneous transmission to the reader that electronic tag A and electronic tag C is sent, it will RN16 is caused to pass
Occurs exception during defeated, i.e., the RN16 that the reader receives is the parameter of an exception.
Electronic tag A, electronic tag B and electronic tag C reselect a random number in preset range [0,3],
Assuming that the random number that electronic tag A is selected is 0, the random number that electronic tag B is selected is 1, the random number that electronic tag C is selected for
3.The random number selected sends 16 random number R N16, the reading to the reader for zero electronic tag i.e. electronic tag A
It writes device and receives 16 random number R N16 that electronic tag A is sent, and judge whether the RN16 received is abnormal, further judges
The RN16 received out is normal, which forms ACK order for RN16 combination command field (command field) and be sent to
Electronic tag A, after electronic tag A receives ACK order, if parsing command field is 01, by the EPC of electronic tag
Number it is reflected to reader；If parsing command field is 10, then reader is reflected to by No. TID of electronic tag；If parsing
Command field is 11 out, then is reflected to reader together for No. EPC of electronic tag and No. TID；
Judge to there remains electronic tag B and electronic tag C in those selected electronic tags, which, which sends, adjusts
Whole instruction makes remaining electronic tag depreciation, i.e. the random number of electronic tag B is 0, and the random number of electronic tag C is 2, random number
RN16 is sent to the reader for the electronic tag B of zero value, which receives the RN16 that electronic tag B is sent, go forward side by side
One step judges whether the RN16 that electronic tag B is sent is abnormal, and the process flow of detailed process and electronic tag A are essentially identical,
Here it just repeats no more.
Although reference be made herein to invention has been described for multiple explanatory embodiments of the invention, however, it is to be understood that
Those skilled in the art can be designed that a lot of other modification and implementations, these modifications and implementations will fall in this Shen
It please be within disclosed scope and spirit.More specifically, disclose in the application, drawings and claims in the range of, can
With the building block and/or a variety of variations and modifications of layout progress to theme combination layout.In addition to building block and/or layout
Outside the modification and improvement of progress, to those skilled in the art, other purposes also be will be apparent.
Claims (4)
1. one kind can read electronic tag TID technique for taking inventory, which comprises the following steps:
S1, reader send Select order, the mark of taking inventory of all electronic tags are set A；
S2, reader send Query order, and all marks of taking inventory is selected to be taken inventory for the electronic tag of A；
S3, selected electronic tag select a random number in a preset range, if the random number selected is described default
Minimum value in range then issues 16 random number R N16 to reader；
S4, reader receive that the random number that selects sends for the electronic tag of the minimum value in the preset range 16 with
Machine number RN16, and whether judge RN16 abnormal, if step S3 is then repeated, if otherwise entering step S5；
S5, reader send ACK order to electronic tag, and the ACK order is institute by command field and the random number selected
State 16 random number R N16 composition that the electronic tag of the minimum value in preset range is sent；
S6, after electronic tag receives the ACK order, if parsing command field is 01, by No. EPC of electronic tag
It is reflected to reader；If parsing command field is 10, then reader is reflected to by No. TID of electronic tag；If parsing
Command field is 11, then is reflected to reader together for No. EPC of electronic tag and No. TID；
S7 judges whether there remains electronic tag in selected electronic tag, if then entering step S8, if otherwise terminating to flow
Journey；
S8, reader, which sends adjustment instruction, makes remaining electronic tag depreciation, until there are electronics marks in remaining electronic tag
The random number of label is zero, and repeats step S4.
2. one kind according to claim 1 can read electronic tag TID technique for taking inventory, which is characterized in that described
Selected electronic tag includes a slot counter, includes the parameter Q of slot counter in Query order, then the default model
Enclose is [0,2Q- 1], the minimum value in the preset range is 0.
3. one kind according to claim 2 can read electronic tag TID technique for taking inventory, which is characterized in that in step
In rapid S3, the random number of each selected electronic tag selection is fitted into the slot counter of the selected electronic tag.
4. one kind according to claim 1 can read electronic tag TID technique for taking inventory, which is characterized in that described
Electronic tag is RFID electronic label.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811310371.4A CN109472177B (en) | 2018-11-06 | 2018-11-06 | Inventory method capable of reading TID (terminal identification) number of electronic tag |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811310371.4A CN109472177B (en) | 2018-11-06 | 2018-11-06 | Inventory method capable of reading TID (terminal identification) number of electronic tag |
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| CN109472177A true CN109472177A (en) | 2019-03-15 |
| CN109472177B CN109472177B (en) | 2022-02-22 |
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| CN201811310371.4A Active CN109472177B (en) | 2018-11-06 | 2018-11-06 | Inventory method capable of reading TID (terminal identification) number of electronic tag |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113705258A (en) * | 2021-08-24 | 2021-11-26 | 电子科技大学 | Data exchange method between reader and RFID (radio frequency identification) tag |
| WO2022142762A1 (en) * | 2020-12-31 | 2022-07-07 | 华为技术有限公司 | Communication method and related device |
| WO2022161336A1 (en) * | 2021-01-30 | 2022-08-04 | 华为技术有限公司 | Method for tag inventory and related device |
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| CN113705258A (en) * | 2021-08-24 | 2021-11-26 | 电子科技大学 | Data exchange method between reader and RFID (radio frequency identification) tag |
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| Publication number | Publication date |
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| CN109472177B (en) | 2022-02-22 |
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Address after: 1, building six, building 180, 210012 software Avenue, Yuhuatai District, Jiangsu, Nanjing Applicant after: Nanjing Jess Microelectronics Technology Co., Ltd Address before: 1, building six, building 180, 210012 software Avenue, Yuhuatai District, Jiangsu, Nanjing Applicant before: NANJING NARI MICROELECTRONICS TECHNOLOGY Co.,Ltd. |
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