CN108763995A - A kind of integral type ultra-high frequency RFID label reading device and working method - Google Patents
A kind of integral type ultra-high frequency RFID label reading device and working 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
- G06K7/10316—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 using at least one antenna particularly designed for interrogating the wireless 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
- 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
- G06K7/10366—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 the interrogation device being adapted for miscellaneous applications
- G06K7/10415—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 the interrogation device being adapted for miscellaneous applications the interrogation device being fixed in its position, such as an access control device for reading wireless access cards, or a wireless ATM
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- G06Q10/00—Administration; Management
- G06Q10/08—Logistics, e.g. warehousing, loading or distribution; Inventory or stock management
- G06Q10/087—Inventory or stock management, e.g. order filling, procurement or balancing against orders
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/20—Individual registration on entry or exit involving the use of a pass
- G07C9/27—Individual registration on entry or exit involving the use of a pass with central registration
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Abstract
The invention discloses a kind of integral type ultra-high frequency RFID label reading device and working method, reading device includes shell, and shell includes front panel, back casing, and back casing is set to the rear side of front panel；Front panel is disposed with touch display screen, glass panel from top to bottom；Control unit is provided on the inside of touch display screen, touch display screen is connected by touch screen interface and display interface with control unit；The madial wall of back casing is disposed with RFID antenna, ultrahigh frequency RFID reader from top to bottom；Ultrahigh frequency RFID reader is connected by Ethernet interface and serial ports with control unit；Ultrahigh frequency RFID reader is connected by radio frequency feed line with RFID antenna；RFID antenna is transmitted by electromagnetic wave signal and RFID tag into row information；The working method of reading device includes outbound recognition and storage two processes of recognition.The present invention effectively improves the accuracy that reading device distinguishes RFID tag, reduces the probabilities of occurrence for reading, reading, mispronouncing less during device recognition more.
Description
Technical field
The present invention relates to a kind of RFID tag reading device and method more particularly to a kind of integral type ultra-high frequency RFID labels
Reading device and working method.
Background technology
With the rapid development of science and technology, RFID (Radio Frequency Identification, radio frequency identification)
An important branch of the technology as technology of Internet of things, the spy that, relatively remote, multi-tag contactless by its is read simultaneously
Point, application are more and more extensive.
However, when ultra-high frequency RFID technology is applied to concrete scene, there is various application conditions and want
It asks, such as：Realize that the quick counting of article, realization pass in and out the material logistics of operation path, realize self-service work on shelf in storehouse
Has the recognition scanning etc. of label.Currently, for the quick counting of shelf contents, generally eventually using movable ultrahigh frequency RFID recognitions
End is read out to solve；For passing in and out the material logistics of operation path, channel-type ultrahigh frequency RFID reading device is generally used
It is read out to solve；And the recognition of self-service tool label is scanned, scattered structure is generally used, at the scene arrangement behaviour
The related accessories such as hosted, reader, antenna, feeder line solve, and it is extremely complex that there are field deployments, man-machine interaction experience pole
The problems such as difference, recognition error probability is high.
Invention content
In order to solve the shortcoming present in above-mentioned technology, the present invention provides a kind of integral type ultra-high frequency RFID labels
Reading device and working method.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of integral type ultra-high frequency RFID label
Reading device, including shell, shell include front panel, back casing, and back casing is set to the rear side of front panel；
Front panel is disposed with indicator light, camera, touch display screen, glass panel from top to bottom；Touch display screen
Inside be provided with control unit, touch display screen is connected by touch screen interface and display interface with control unit, is used for
Realize man-machine interactive operation and the status display of operating process；Control unit is fixed on the madial wall of front panel；
The madial wall of back casing is disposed with RFID antenna, ultrahigh frequency RFID reader, installation's power source from top to bottom；
The position of RFID antenna is corresponding with glass panel；Installation's power source is shown with indicator light, camera, touch respectively by conducting wire
Screen, control unit, ultrahigh frequency RFID reader are connected；
Ultrahigh frequency RFID reader is connected by Ethernet interface and serial ports with control unit, for realizing control unit
With ultrahigh frequency RFID reader exchange command and receive the read label information of ultrahigh frequency RFID reader；Ultrahigh frequency RFID is read
It reads device to be also connected with RFID antenna by radio frequency feed line, for radiofrequency signal to be radiate, while receiving RFID antenna institute
The echo-signal from article tag sensed；RFID antenna is also passed by electromagnetic wave signal and RFID tag into row information
It passs；
The inner sidewall upper portion of front panel is provided with front panel locking mechanism；The upper back of back casing is provided with and front panel
The clamping screw that locking mechanism matches, back casing are realized and tightly pluging with molten metal between front panel locking mechanism by clamping screw；Afterwards
The back lower of shell is provided with device interface；Installation's power source is connected by device interface with the power supply outside device.
The shape of front panel locking mechanism is L-type column, and one end of L-type column is offered with female connecting hole, L-type column
The other end be fixed on the madial wall of front panel；The internal thread of connecting hole matches with clamping screw.
The lower end of front panel is provided with positioning pin；Location hole corresponding with positioning pin is provided on the outer wall of back casing,
Positioning pin determines position of the front panel on back casing by being inserted in inside location hole.
RFID tag is fixedly installed on by way of pasting or binding on corresponding article, and being used for will each independent object
Product identification electronic forms corresponding article tag.
The altitude range on the centre distance ground of RFID antenna is 90~110cm.
A kind of working method of integral type ultra-high frequency RFID label reading device, including following two processes：
I, process is distinguished in outbound：
A, slab discharge planning is worked out：Operate touch display screen establishment slab discharge planning simultaneously specified outbound personnel, and by slab discharge planning
And outbound demographic data passes to control unit；
B, outbound recognition scanning：The article for waiting for outbound is got, operation touch display screen starts outbound flow, control unit control
Ultrahigh frequency RFID reader processed sends out radiofrequency signal by RFID antenna, the RFID identity labels of outbound personnel and waits for outbound object
Emit the echo-signal of inside tags identification information after the RFID tag to radiofrequency signal of product, ultrahigh frequency RFID reader is logical
RFID antenna is crossed to read echo-signal and the label information after reading is sent to control unit；Control unit is according to outbound personnel
Slab discharge planning in step a is compared identity information with outbound Item Information is waited for, comparison result is correct when comparing consistent, than
To it is inconsistent when comparison result be mistake, comparison result shows in touch display screen；Slab discharge planning is carried out by control unit
The first mistake proofing again is realized with the comparison of outbound Item Information is waited for；Operation touch display screen is confirmed or is taken to comparison result
Disappear, confirmation then generates outbound inventory, completes outbound operation, cancels and then removes the above operation；By confirming to comparison result
Or cancellation realizes the second mistake proofing again；
II, it is put in storage recognition process：It operates touch display screen and starts storage flow, control unit controls ultrahigh frequency RFID and reads
Device sends out radiofrequency signal by RFID antenna, is put in storage the RFID identity labels of personnel and the RFID tag of article to be put in storage
Emit the echo-signal of inside tags identification information after to radiofrequency signal, ultrahigh frequency RFID reader is read back by RFID antenna
Label information after reading is simultaneously sent to control unit by wave signal；Control unit is according to storage personnel identity information by step a
Middle slab discharge planning is compared with Item Information to be put in storage, and comparison result is correct when comparing consistent, is compared when comparing inconsistent
As a result it is mistake, comparison result is shown in touch display screen；Slab discharge planning is carried out by control unit with article to be put in storage to believe
The comparison of breath realizes the first mistake proofing again；Operation touch display screen comparison result is confirmed or is cancelled, confirmation then generate into
Library records, and completes in-stockroom operation, cancels and then removes the above operation；Second is realized by being confirmed to comparison result or being cancelled
Mistake proofing again.
The present invention effectively improves the accuracy that ultrahigh frequency RFID reading device distinguishes RFID tag, reduces device
The probabilities of occurrence for reading, reading, mispronouncing less during recognition more.
Description of the drawings
Fig. 1 is the structural schematic diagram of integral type ultra-high frequency RFID label reading device.
Fig. 2 is the rearview of Fig. 1.
Fig. 3 is the structural schematic diagram of the madial wall of front panel.
Fig. 4 is the structural schematic diagram of the madial wall of back casing.
Fig. 5 is the side view of Fig. 1.
Fig. 6 is the structure diagram of integral type ultra-high frequency RFID label reading device.
Fig. 7 is the flow chart that process is distinguished in outbound.
Fig. 8 is the flow chart for being put in storage recognition process.
Fig. 9 is the first mistake proofing schematic diagram again that process is distinguished in outbound.
Figure 10 is the second mistake proofing schematic diagram again that process is distinguished in outbound.
Figure 11 is the first mistake proofing schematic diagram again for being put in storage recognition process.
Figure 12 is the second mistake proofing schematic diagram again for being put in storage recognition process.
In figure：1, front panel；2, back casing；3, indicator light；4, camera；5, touch display screen；6, glass panel；7, it controls
Unit processed；8, RFID antenna；9, ultrahigh frequency RFID reader；10, installation's power source；11, front panel locking mechanism；12, locking screw
Bolt；13, device interface；14, positioning pin.
Specific implementation mode
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in figs. 1 to 6, a kind of integral type ultra-high frequency RFID label reading device, including shell, shell include front panel
1, back casing 2, back casing 2 are set to the rear side of front panel 1；
Front panel 1 is disposed with indicator light 3, camera 4, touch display screen 5, glass panel 6 from top to bottom；It touches aobvious
The inside of display screen 5 is provided with control unit 7, and the material of glass panel 6 is organic glass；Indicator light 3 is used to indicate article and goes out, enters
The state of library success or failure, camera 4 are used to acquire the image information of user, camera 4, indicator light 3 by conducting wire with
Control unit 7 is connected；Touch display screen 5 is connected by touch screen interface and display interface with control unit 7, for realizing
Man-machine interactive operation and the status display of operating process；Control unit 7 is fixed on the madial wall of front panel 1；User is logical
Outbound storage and mistake proofing process that the operation discrepancy library software of touch display screen 5 completes article are crossed, the library software that comes in and goes out is by control unit 7
Control.
The madial wall of back casing 2 is disposed with RFID antenna 8, ultrahigh frequency RFID reader 9, installation's power source from top to bottom
10；The position of RFID antenna 8 is corresponding with glass panel 6, and the altitude range on the centre distance ground of RFID antenna 8 is 90~
110cm is convenient for man-machine interactive operation；Installation's power source 10 is converted by ACDC, and 220VAC is converted to 12VDC and 5VDC, to refer to
Show that lamp 3, camera 4, touch display screen 5, control unit 7, ultrahigh frequency RFID reader 9 provide power supply supply.
Ultrahigh frequency RFID reader 9 is connected by Ethernet interface and serial ports with control unit 7, single for realizing control
Member and ultrahigh frequency RFID reader exchange command simultaneously receive the read label information of ultrahigh frequency RFID reader；Ultrahigh frequency RFID
Reader 9 is also connected by radio frequency feed line with RFID antenna 8, for radiofrequency signal to be radiate, while being received RFID days
The echo-signal from article tag that line is sensed；RFID antenna 8 also carries out letter by electromagnetic wave signal and RFID tag
Breath transmits；
The inner sidewall upper portion of front panel 1 is provided with front panel locking mechanism 11, and the upper back of back casing 2 is provided with before
The clamping screw 12 that panel locking mechanism 11 matches；The shape of front panel locking mechanism 11 is L-type column, and one end of L-type column is opened
It is fixed on equipped with the other end with female connecting hole, L-type column on the madial wall of front panel 1；The internal thread of connecting hole with
Clamping screw 12 matches；Back casing is realized and tightly pluging with molten metal between front panel locking mechanism by clamping screw.After back casing 2
Side lower part is provided with device interface 13；Installation's power source 10 is connected by device interface 13 with the power supply outside device.
The lower end of front panel 1 is provided with positioning pin 14；It is corresponding with positioning pin 14 fixed to be provided on the outer wall of back casing 2
Position hole, positioning pin 14 determine position of the front panel 1 on back casing 2 by being inserted in inside location hole.
RFID tag is fixedly installed on by way of pasting or binding on corresponding article, and being used for will each independent object
Product identification electronic forms corresponding article tag；Integral type ultra-high frequency RFID label reading device is positioned over storehouse simultaneously
Doorway is gone out to be put in storage recognition scanning device, the warehouse inlet-outlet management system of storehouse article is built with this as self-service.
A kind of working method of integral type ultra-high frequency RFID label reading device, including following two processes：
I, process is distinguished in outbound：
A, slab discharge planning is worked out：Slab discharge planning authorized personnel operates touch display screen 5 and works out slab discharge planning and specified outbound
Personnel, and slab discharge planning and outbound demographic data are passed into control unit 7；
B, outbound recognition scanning：Outbound personnel get the article for waiting for outbound, and operation touch display screen 5 starts outbound flow,
Control unit 7 controls ultrahigh frequency RFID reader 9 and sends out radiofrequency signal, the RFID identity marks of outbound personnel by RFID antenna 8
Sign and emit after the RFID tag to radiofrequency signal of outbound article the echo-signal of inside tags identification information, superelevation
Frequency RFID reader 9 reads echo-signal by RFID antenna 8 and the label information after reading is sent to control unit 7；Control
Slab discharge planning in step a is compared with outbound Item Information is waited for according to outbound personnel identity information for unit 7 processed, compares consistent
When comparison result be correct, when comparing inconsistent comparison result be mistake, comparison result is shown in touch display screen 5, is passed through
Control unit 7 carries out slab discharge planning and waits for that the comparison of outbound Item Information realizes the first mistake proofing again；It is right to operate touch display screen 5
Comparison result is confirmed or is cancelled that confirmation then generates outbound inventory, completes outbound operation, is cancelled and is then removed the above operation；It is logical
It crosses and comparison result is confirmed or is cancelled realizes the second mistake proofing again；
II, it is put in storage recognition process：Storage personnel operate touch display screen 5 and start storage flow, and control unit 7 controls superelevation
Frequency RFID reader 9 sends out radiofrequency signal by RFID antenna 8, is put in storage the RFID identity labels of personnel and article to be put in storage
Emit the echo-signal of inside tags identification information after RFID tag to radiofrequency signal, ultrahigh frequency RFID reader 9 passes through
RFID antenna 8 reads echo-signal and the label information after reading is sent to control unit 7；Control unit 7 is according to storage people
Slab discharge planning in step a is compared member's identity information with Item Information to be put in storage, and comparison result is correct when comparing consistent,
Comparison result is mistake when comparing inconsistent, and comparison result is shown in touch display screen 5, and outbound is carried out by control unit 7
Plan and the comparison of Item Information to be put in storage realizes the first mistake proofing again；Operation touch display screen 5 confirms comparison result
Or cancel, confirmation then generates storage record, completes in-stockroom operation, cancels and then removes the above operation；By being carried out to comparison result
Confirming or cancelling realizes the second mistake proofing again.
By first, mistake proofing realizes the man-machine mistake proofing mechanism confirmed jointly to the present invention again for mistake proofing, second again, effectively carries
The accuracy that reading device distinguishes RFID tag is risen, the appearance for reading, reading, mispronouncing less general more during reducing device recognition
Rate has important value in practical application in industry.
The above embodiment is not limitation of the present invention, and the present invention is also not limited to the example above, this technology neck
The variations, modifications, additions or substitutions that the technical staff in domain is made within the scope of technical scheme of the present invention, also belong to this hair
Bright protection domain.
Claims (6)
1. a kind of integral type ultra-high frequency RFID label reading device, including shell, it is characterised in that：The shell includes front panel
(1), back casing (2), back casing (2) are set to the rear side of front panel (1)；
The front panel (1) is disposed with indicator light (3), camera (4), touch display screen (5), glass panel from top to bottom
(6)；Control unit (7) is provided on the inside of the touch display screen (5), touch display screen (5) is by touch screen interface and shows
Show that interface is connected with control unit (7), for realizing man-machine interactive operation and the status display of operating process；The control
Unit (7) is fixed on the madial wall of front panel (1)；
The madial wall of the back casing (2) is disposed with RFID antenna (8), ultrahigh frequency RFID reader (9), dress from top to bottom
Set power supply (10)；The position of the RFID antenna (8) is corresponding with glass panel (6)；Described device power supply (10) passes through conducting wire
It is connected respectively with indicator light (3), camera (4), touch display screen (5), control unit (7), ultrahigh frequency RFID reader (9)
It connects；
The ultrahigh frequency RFID reader (9) is connected by Ethernet interface and serial ports with control unit (7), for realizing control
Unit processed and ultrahigh frequency RFID reader exchange command simultaneously receive the read label information of ultrahigh frequency RFID reader；It is described super
High frequency RFID reader (9) is also connected by radio frequency feed line with RFID antenna (8), for radiofrequency signal to be radiate, together
When receive the echo-signal from article tag that is sensed of RFID antenna；The RFID antenna (8) is also believed by electromagnetic wave
Number with RFID tag into row information transmit；
The inner sidewall upper portion of the front panel (1) is provided with front panel locking mechanism (11)；The upper back of the back casing (2)
It is provided with the clamping screw (12) to match with front panel locking mechanism (11), back casing is realized by clamping screw and front panel
Tightly pluging with molten metal between locking mechanism；The back lower of the back casing (2) is provided with device interface (13)；Described device power supply (10)
It is connected with the power supply outside device by device interface (13).
2. a kind of integral type ultra-high frequency RFID label reading device according to claim 1, it is characterised in that：The front
The shape of plate locking mechanism (11) is L-type column, and one end of L-type column is offered with female connecting hole, the other end of L-type column
It is fixed on the madial wall of front panel (1)；The internal thread of the connecting hole matches with clamping screw (12).
3. a kind of integral type ultra-high frequency RFID label reading device according to claim 1, it is characterised in that：The front
The lower end of plate (1) is provided with positioning pin (14)；It is corresponding with positioning pin (14) fixed to be provided on the outer wall of the back casing (2)
Position hole, positioning pin (14) determine position of the front panel (1) on back casing (2) by being inserted in inside location hole.
4. a kind of integral type ultra-high frequency RFID label reading device according to claim 1, it is characterised in that：The RFID
Label is fixedly installed on by way of pasting or binding on corresponding article, and being used for will each independent article identity electronics
Change, forms corresponding article tag.
5. a kind of integral type ultra-high frequency RFID label reading device according to claim 1, it is characterised in that：The RFID
The altitude range on the centre distance ground of antenna (8) is 90~110cm.
6. a kind of working method of integral type ultra-high frequency RFID label reading device as described in claim 1, it is characterised in that：
The method includes following two processes：
I, process is distinguished in outbound：
A, slab discharge planning is worked out：Operate touch display screen (5) and work out slab discharge planning simultaneously specified outbound personnel, and by slab discharge planning and
Outbound demographic data passes to control unit (7)；
B, outbound recognition scanning：The article for waiting for outbound is got, operation touch display screen (5) starts outbound flow, control unit (7)
Control ultrahigh frequency RFID reader (9) sends out radiofrequency signal by RFID antenna (8), the RFID identity labels of outbound personnel and
Emit the echo-signal of inside tags identification information, ultrahigh frequency RFID after the RFID tag to radiofrequency signal of outbound article
Reader (9) reads echo-signal by RFID antenna (8) and the label information after reading is sent to control unit (7)；Control
Slab discharge planning in step a is compared with outbound Item Information is waited for according to outbound personnel identity information for unit (7) processed, compares one
Comparison result is correct when cause, and comparison result is mistake when comparing inconsistent, and comparison result is shown in touch display screen (5)；
Slab discharge planning is carried out by control unit (7) and waits for that the comparison of outbound Item Information realizes the first mistake proofing again；Operation touches aobvious
Display screen (5) confirmed or cancelled to comparison result, and confirmation then generates outbound inventory, completes outbound operation, cancel then remove with
Upper operation；The second mistake proofing again is realized by being confirmed to comparison result or being cancelled；
II, it is put in storage recognition process：
It operates touch display screen (5) and starts storage flow, control unit (7) control ultrahigh frequency RFID reader (9) passes through RFID
Antenna (8) sends out radiofrequency signal, is put in storage the RFID identity labels of personnel and the RFID tag of article to be put in storage to radio frequency
Emit the echo-signal of inside tags identification information after signal, ultrahigh frequency RFID reader (9) is read back by RFID antenna (8)
Label information after reading is simultaneously sent to control unit (7) by wave signal；Control unit (7) will according to storage personnel identity information
Slab discharge planning is compared with Item Information to be put in storage in step a, and comparison result is correct when comparing consistent, when comparing inconsistent
Comparison result is mistake, and comparison result is shown in touch display screen (5)；It carries out slab discharge planning by control unit (7) and waits for
The comparison of storage Item Information realizes the first mistake proofing again；It operates touch display screen (5) comparison result is confirmed or cancelled,
Confirmation then generates storage record, completes in-stockroom operation, cancels and then removes the above operation；By being confirmed to comparison result or being taken
Disappearing realizes the second mistake proofing again.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811037981.1A CN108763995A (en) | 2018-09-06 | 2018-09-06 | A kind of integral type ultra-high frequency RFID label reading device and working method |
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| CN201811037981.1A CN108763995A (en) | 2018-09-06 | 2018-09-06 | A kind of integral type ultra-high frequency RFID label reading device and working method |
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| CN201811037981.1A Pending CN108763995A (en) | 2018-09-06 | 2018-09-06 | A kind of integral type ultra-high frequency RFID label reading device and working method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109522765A (en) * | 2018-11-28 | 2019-03-26 | 易程创新科技有限公司 | A kind of ultrahigh frequency RFID multiaerial system and method |
| CN110046846A (en) * | 2019-03-13 | 2019-07-23 | 京东方科技集团股份有限公司 | Article monitoring method and terminal, system |
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| CN110046846B (en) * | 2019-03-13 | 2022-02-25 | 京东方科技集团股份有限公司 | Article monitoring method, terminal and system |
| US11526841B2 (en) | 2019-03-13 | 2022-12-13 | Beijing Boe Technology Development Co., Ltd. | Item monitoring method, terminal, and system |
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