CN110135211A - A kind of method and device that can quick and precisely take inventory RFID tag quantity - Google Patents
A kind of method and device that can quick and precisely take inventory RFID tag quantity Download PDFInfo
- Publication number
- CN110135211A CN110135211A CN201910414194.2A CN201910414194A CN110135211A CN 110135211 A CN110135211 A CN 110135211A CN 201910414194 A CN201910414194 A CN 201910414194A CN 110135211 A CN110135211 A CN 110135211A
- Authority
- CN
- China
- Prior art keywords
- label
- roll
- reader
- blind spot
- unique identifier
- 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.)
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Classifications
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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
- G06K17/0022—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 arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
- G06K17/0029—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 arrangements or provisious for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
-
- 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.
- G06K7/10108—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. interrogating only those RFIDs that fulfill a predetermined requirement, e.g. selecting all RFIDs having the same speed and moving in a cloud like fashion, e.g. on the same train; interrogating only RFIDs having a certain predetermined temperature, e.g. in the same fridge, another possibility being the active ignoring of a group of tags that fulfill a predetermined requirement, equivalent to the Boolean NOT operation
Abstract
A kind of method that can quick and precisely take inventory RFID tag quantity improves existing reader process of making an inventory, and increases roll-call working method, reduces reader to the anti-collision arbitration identification number of label, accelerates the speed made an inventory；Simultaneously in reader internal storage, increase " the label pond " of record label unique identifier information, the label information statistical work in radio frequency operation field is completed by reader, reduces the information between reader and host computer and repeat to transmit.The present invention is suitable for the applications such as Intelligent bookshelf cabinet, intelligent food and drink, intelligent refrigerator-freezer, Air Logistics, production line management, especially more obvious in the application effect of several hundred or more labels.
Description
Technical field
The present invention relates to the method and devices that one kind can quick and precisely take inventory RFID tag quantity, belong to statistics
The technical field of RFID tag quantity.
Background technique
Internet of Things (Internet of things) technology is the important trend of Contemporary Informationization development, is referred to as calculated
The third wave of world information industry after machine, internet, RFID technique are one of internet of things key technology.RFID technique is made
The weakness that bar code information cannot rewrite, amount of storage is small, safety is poor is compensated for for a kind of article mark technology, it has wireless non-
Sighting distance read-write, signal penetration capacity is strong, distance is remote, long service life, good environmental adaptability, can multi-tag identify simultaneously etc. it is excellent
Point, is used widely in recent years.
Existing RFID system is when making an inventory label, usually from host computer to RFID reader transmitting panel dot command, then
Reader carries out anti-collision arbitration identification, also referred to as blind spot process, after reader completes a blind spot, all labels is unique
Identification code is transmitted to host computer, by host computer by determining the accurate number of tags in radio frequency operation field after continuously making an inventory several times
Amount, the time that whole flow process expends is longer, and technical reason includes two aspects:
First is that the information between reader and host computer is transmitted, i.e., label unique identifier repeats to transmit, and host computer
Need repeatedly compare transmission as a result, just can determine that the quantity of radio frequency operation field interior label；Second is that weight between reader and label
Multiple multiple anti-collision arbitrates identification, wherein taking a long time since arbitration time is longer.
Summary of the invention
In view of the deficiencies of the prior art, the present invention discloses a kind of side that can quick and precisely take inventory RFID tag quantity
Method.
Invention additionally discloses a kind of devices for realizing the above method, to realize the radio frequency in precise and high efficiency statistical work field
Number of labels.
Technical scheme is as follows:
A kind of method that can quick and precisely take inventory RFID tag quantity, which comprises the following steps:
(1) reader receive host computer make an inventory order when: sent by label into yard of radio-frequency module and antenna
Reset powers on instruction, and the label in the yard is converted to the roll-call label of itself " not calling the roll ", and blind spot label maintains not
Become；
(2) reader reads a label unique identifier in the label unique identifier list in memory, passes through
Label into yard of radio-frequency module and antenna sends instruction of calling the roll: if label is in yard, label by itself
Label of calling the roll is converted to " roll-call ", and blind spot label remains unchanged, and returns to unique identifier to reader, and reader receives only
One identification code, label unique identifier list remain unchanged；If label is in outside yard, the roll-call of label itself is marked
" not calling the roll " is constant, and blind spot label remains unchanged, and reader does not receive tag responses, being somebody's turn to do in label unique identifier list
Record deletion, and the unique identifier of the label is uploaded into host computer；
(3) step (2) are repeated, all label unique identifiers in the complete label unique identifier list of poll；
(4) reader sends anti-collision arbitration identification instruction labeled as the label of " non-blind spot " to blind spots all in yard
Collection, roll-call will not respond blind spot instruction labeled as the label of " roll-call ", after the label of " not calling the roll " is correctly validated, return
Unique identifier, and the blind spot of itself label is converted to " blind spot ", label of calling the roll is converted to " roll-call "；
The unique identifier that reader often receives a label increases a record i.e. in label unique identifier list,
And unique identifier is uploaded into host computer；
(5) step (4) are repeated, until completing once to arbitrate identification process to the anti-collision of " non-blind spot " label；
(6) reader sends anti-collision arbitration identification instruction labeled as the label of " blind spot " to blind spots all in yard
Collection, roll-call will not respond blind spot instruction labeled as the label of " roll-call ", after the label of " not calling the roll " is correctly validated, return
Unique identifier, and the blind spot of itself label is converted to " blind spot ", label of calling the roll is converted to " roll-call "；
The unique identifier that reader often receives a label increases a record i.e. in label unique identifier list,
And unique identifier is uploaded into host computer；
(7) repetitive cycling (6), until completing once to arbitrate identification process to the anti-collision of " blind spot " label；
(8) reader sends label and make an inventory to host computer terminates order.
The device of RF tag quantity in a kind of statistical work field, comprising: reader and host computer, the reader packet
The RAM memory and radio-frequency module being connected with microprocessor are included, the radio-frequency module passes through the radio frequency mark in antenna and yard
Label wireless communication；The host computer is connect with microprocessor；
The RAM memory is used to save the unique identifier of all identified labels；
The reader in the following ways makes an inventory to the label in less radio-frequency yard: 1) secondary using anti-collision
Cut out identification, i.e. blind spot mode；2) unique identifier match cognization, i.e. roll-call mode are used；
Wherein, the reader is completed to make an inventory to a label after receiving the unique identifier of label.
Preferred according to the present invention, the realization of the blind spot mode sends anti-collision to label by reader and instructs afflux
Journey is realized；The realization of the roll-call mode, which sends label by reader, calls the roll instruction to realize.
It is preferred according to the present invention, it include two flag bits in the label: blind spot label and label of calling the roll；
When blind spot is labeled as " 0 ", show " non-blind spot "；When blind spot is labeled as " 1 ", show " blind spot "；
When calling the roll labeled as " 0 ", show " not calling the roll "；When calling the roll labeled as " 1 ", show " roll-call ".
Reader carries out disk to the label in yard using " blind spot+roll-call+blind spot+roll-call ... " alternate mode
Point, blind spot mode enter the label in yard for identification；Roll-call mode leaves the label in yard for identification.Pass through
Blind spot mode often recognizes the unique identifier of a label, and " label pond " is increased by a new data record, otherwise " mark
Data record in label pond " remains unchanged；A label is recognized by roll-call mode, the data record in " label pond " maintains not
Become, otherwise " label pond " just deletes an existing data record.
Technical advantage of the invention is as follows:
The present invention improves existing reader process of making an inventory, and increases roll-call working method, reduces reader to mark
The anti-collision arbitration identification number of label, accelerates the speed made an inventory；Simultaneously in reader internal storage, increase record label only
" the label pond " of one information of identification code, the label information statistical work in radio frequency operation field is completed by reader, is reduced and is read
The information between device and host computer is write to repeat to transmit.The present invention is suitable for Intelligent bookshelf cabinet, intelligent food and drink, intelligent refrigerator-freezer, aviation
The applications such as logistics, production line management, it is especially more obvious in the application effect of several hundred or more labels.
Detailed description of the invention
Fig. 1 is the method for the invention step (1)-(3) flow chart；
Fig. 2 is the method for the invention step (4)-(5) flow chart；
Fig. 3 is the method for the invention step (6)-(8) flow chart；
Fig. 4 is the module connection figure of the device of the RF tag quantity in present invention realization statistical work field.
Specific embodiment
The present invention is described in detail below with reference to embodiment and Figure of description, but not limited to this.
Embodiment 1,
As shown in Figs. 1-3.
A kind of method that can quick and precisely take inventory RFID tag quantity, comprising the following steps:
(1) reader receive host computer make an inventory order when: sent by label into yard of radio-frequency module and antenna
Reset powers on instruction, and the label in the yard is converted to the roll-call label of itself " not calling the roll ", and blind spot label maintains not
Become；
(2) reader reads a label unique identifier in the label unique identifier list in memory, passes through
Label into yard of radio-frequency module and antenna sends instruction of calling the roll: if label is in yard, label by itself
Label of calling the roll is converted to " roll-call ", and blind spot label remains unchanged, and returns to unique identifier to reader, and reader receives only
One identification code, label unique identifier list remain unchanged；If label is in outside yard, the roll-call of label itself is marked
" not calling the roll " is constant, and blind spot label remains unchanged, and reader does not receive tag responses, being somebody's turn to do in label unique identifier list
Record deletion, and the unique identifier of the label is uploaded into host computer；
(3) step (2) are repeated, all label unique identifiers in the complete label unique identifier list of poll；
(4) reader sends anti-collision arbitration identification instruction labeled as the label of " non-blind spot " to blind spots all in yard
Collection, roll-call will not respond blind spot instruction labeled as the label of " roll-call ", after the label of " not calling the roll " is correctly validated, return
Unique identifier, and the blind spot of itself label is converted to " blind spot ", label of calling the roll is converted to " roll-call "；
The unique identifier that reader often receives a label increases a record i.e. in label unique identifier list,
And unique identifier is uploaded into host computer；
(5) step (4) are repeated, until completing once to arbitrate identification process to the anti-collision of " non-blind spot " label；
(6) reader sends anti-collision arbitration identification instruction labeled as the label of " blind spot " to blind spots all in yard
Collection, roll-call will not respond blind spot instruction labeled as the label of " roll-call ", after the label of " not calling the roll " is correctly validated, return
Unique identifier, and the blind spot of itself label is converted to " blind spot ", label of calling the roll is converted to " roll-call "；
The unique identifier that reader often receives a label increases a record i.e. in label unique identifier list,
And unique identifier is uploaded into host computer；
(7) repetitive cycling (6), until completing once to arbitrate identification process to the anti-collision of " blind spot " label；
(8) reader sends label and make an inventory to host computer terminates order.
Embodiment 2,
As shown in Figure 4.
The device of RF tag quantity in a kind of statistical work field, comprising: reader and host computer, the reader packet
The RAM memory and radio-frequency module being connected with microprocessor are included, the radio-frequency module passes through the radio frequency mark in antenna and yard
Label wireless communication；The host computer is connect with microprocessor.Radio frequency signal is emitted to work after radio-frequency module connection antenna
Make to carry out data communication with RF tag in field, and by interactive data back to microprocessor, the microprocessor is by data
It saves into RAM memory；
The RAM memory is used to save the unique identifier of all identified labels；
The reader in the following ways makes an inventory to the label in less radio-frequency yard: 1) secondary using anti-collision
Cut out identification, i.e. blind spot mode；2) unique identifier match cognization, i.e. roll-call mode are used；
Wherein, the reader is completed to make an inventory to a label after receiving the unique identifier of label.
The realization of the blind spot mode sends anti-collision instruction set process to label to be realized by reader；It is described
The realization of roll-call mode, which sends label by reader, calls the roll instruction to realize.
It include two flag bits in the label: blind spot label and label of calling the roll；
When blind spot is labeled as " 0 ", show " non-blind spot "；When blind spot is labeled as " 1 ", show " blind spot "；
When calling the roll labeled as " 0 ", show " not calling the roll "；When calling the roll labeled as " 1 ", show " roll-call ".
Reader carries out disk to the label in yard using " blind spot+roll-call+blind spot+roll-call ... " alternate mode
Point, blind spot mode enter the label in yard for identification；Roll-call mode leaves the label in yard for identification.Pass through
Blind spot mode often recognizes the unique identifier of a label, and " label pond " is increased by a new data record, otherwise " mark
Data record in label pond " remains unchanged；A label is recognized by roll-call mode, the data record in " label pond " maintains not
Become, otherwise " label pond " just deletes an existing data record.
Claims (4)
1. the method that one kind can quick and precisely take inventory RFID tag quantity, which comprises the following steps:
(1) reader receive host computer make an inventory order when: sent and resetted by label into yard of radio-frequency module and antenna
Instruction is powered on, the label in the yard is converted to the roll-call label of itself " not calling the roll ", and blind spot label remains unchanged；
(2) reader reads a label unique identifier in the label unique identifier list in memory, passes through radio frequency
Label into yard of module and antenna sends instruction of calling the roll: if label is in yard, label is by the roll-call of itself
Label is converted to " roll-call ", and blind spot label remains unchanged, and returns to unique identifier to reader, and reader receives unique knowledge
Other code, label unique identifier list remain unchanged；If label is in outside yard, the roll-call of label itself marks " non-point
Name " is constant, and blind spot label remains unchanged, and reader does not receive tag responses, this note in label unique identifier list
Record is deleted, and the unique identifier of the label is uploaded host computer；
(3) step (2) are repeated, all label unique identifiers in the complete label unique identifier list of poll；
(4) reader sends anti-collision arbitration identification instruction set labeled as the label of " non-blind spot " to blind spots all in yard,
Roll-call will not respond blind spot instruction labeled as the label of " roll-call ", after the label of " not calling the roll " is correctly validated, return only
One identification code, and the blind spot of itself label is converted to " blind spot ", label of calling the roll is converted to " roll-call "；
The unique identifier that reader often receives a label increases a record i.e. in label unique identifier list, and will
Unique identifier uploads host computer；
(5) step (4) are repeated, until completing once to arbitrate identification process to the anti-collision of " non-blind spot " label；
(6) reader sends anti-collision arbitration identification instruction set labeled as the label of " blind spot " to blind spots all in yard,
Roll-call will not respond blind spot instruction labeled as the label of " roll-call ", after the label of " not calling the roll " is correctly validated, return only
One identification code, and the blind spot of itself label is converted to " blind spot ", label of calling the roll is converted to " roll-call "；
The unique identifier that reader often receives a label increases a record i.e. in label unique identifier list, and will
Unique identifier uploads host computer；
(7) repetitive cycling (6), until completing once to arbitrate identification process to the anti-collision of " blind spot " label；
(8) reader sends label and make an inventory to host computer terminates order.
2. a kind of device of the RF tag quantity in statistical work field, which is characterized in that the device includes: reader and upper
Machine, the reader include the RAM memory and radio-frequency module being connected with microprocessor, and the radio-frequency module passes through antenna and work
Make the RF tag wireless communication in field；The host computer is connect with microprocessor；
The RAM memory is used to save the unique identifier of all identified labels；
The reader in the following ways makes an inventory to the label in less radio-frequency yard: 1) being known using anti-collision arbitration
Not, i.e. blind spot mode；2) unique identifier match cognization, i.e. roll-call mode are used；
Wherein, the reader is completed to make an inventory to a label after receiving the unique identifier of label.
3. the device of the RF tag quantity in a kind of statistical work field as claimed in claim 2, which is characterized in that described blind
The realization of point mode sends anti-collision instruction set process to label to be realized by reader；The realization of the roll-call mode
Label is sent by reader and calls the roll instruction to realize.
4. the device of the RF tag quantity in a kind of statistical work field as claimed in claim 3, which is characterized in that the mark
It include two flag bits in label: blind spot label and label of calling the roll；
When blind spot is labeled as " 0 ", show " non-blind spot "；When blind spot is labeled as " 1 ", show " blind spot "；
When calling the roll labeled as " 0 ", show " not calling the roll "；When calling the roll labeled as " 1 ", show " roll-call ".
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910258768 | 2019-04-01 | ||
| CN2019102587681 | 2019-04-01 |
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| Publication Number | Publication Date |
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| CN110135211A true CN110135211A (en) | 2019-08-16 |
| CN110135211B CN110135211B (en) | 2022-02-18 |
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|---|---|---|---|
| CN201910414194.2A Active CN110135211B (en) | 2019-04-01 | 2019-05-17 | Method and device capable of rapidly and accurately checking number of RFID radio frequency tags |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111008681A (en) * | 2019-11-30 | 2020-04-14 | 深圳市顺易通信息技术有限公司 | Electronic tag inventory method and inventory system |
| CN111666777A (en) * | 2020-06-04 | 2020-09-15 | 尤尼菲德(苏州)智能科技有限公司 | Efficient quality inspection package ex-warehouse management control method for batch intelligent tags |
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| CN111666777A (en) * | 2020-06-04 | 2020-09-15 | 尤尼菲德(苏州)智能科技有限公司 | Efficient quality inspection package ex-warehouse management control method for batch intelligent tags |
| CN111666777B (en) * | 2020-06-04 | 2023-09-12 | 尤尼菲德(苏州)智能科技有限公司 | Efficient quality control packaging ex-warehouse management control method for batch intelligent labels |
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| CN110135211B (en) | 2022-02-18 |
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Denomination of invention: A method and device that can quickly and accurately inventory the number of RFID radio frequency tags Effective date of registration: 20230301 Granted publication date: 20220218 Pledgee: Bank of China Limited Jinan high tech sub branch Pledgor: SHANDONG HUAYI MICRO-ELECTRONICS Co.,Ltd. Registration number: Y2023370000046 |