CN106934447A - A kind of passive electronic label system and method - Google Patents
A kind of passive electronic label system and method Download PDFInfo
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- CN106934447A CN106934447A CN201710294236.4A CN201710294236A CN106934447A CN 106934447 A CN106934447 A CN 106934447A CN 201710294236 A CN201710294236 A CN 201710294236A CN 106934447 A CN106934447 A CN 106934447A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0701—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management
- G06K19/0707—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management the arrangement being capable of collecting energy from external energy sources, e.g. thermocouples, vibration, electromagnetic radiation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07701—Constructional details, e.g. mounting of circuits in the carrier the record carrier comprising an interface suitable for human interaction
- G06K19/07703—Constructional details, e.g. mounting of circuits in the carrier the record carrier comprising an interface suitable for human interaction the interface being visual
- G06K19/07707—Constructional details, e.g. mounting of circuits in the carrier the record carrier comprising an interface suitable for human interaction the interface being visual the visual interface being a display, e.g. LCD or electronic ink
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Display Racks (AREA)
- User Interface Of Digital Computer (AREA)
Abstract
The present invention relates to a kind of passive electronic label system and method, the system includes communication unit and label body, communication unit includes power module, communication module and data processing module, label body includes drive module and Electronic Paper screen, power module, for being powered to data processing module, drive module and Electronic Paper screen；Communication module, the modification information for receiving mobile terminal；Data processing module is processed modification information, and the display information of Electronic Paper screen is modified by drive module；Drive module receives the information of data processing module, drives Electronic Paper screen to enter row information modification；Electronic Paper screen receives the drive signal that drive module sends, the information that display is received.Be arranged on battery in other equipment by the present invention, and the connection of Electronic Paper screen and single-chip microcomputer, reduces cost are realized indirectly, remote modification Electronic Paper screen information, and send energy size no requirement (NR) to dynamic terminal, and the larger sized Electronic Paper screen that can be done, visual effect is more preferably.
Description
Technical field
More specifically refer to a kind of passive electronic label system and method the present invention relates to electronic tag.
Background technology
The country such as America and Europe has taken the lead in recent years, and (Electronic Shelf Label are referred to as release electronic bin tag system
ESL), it is a kind of electronic display unit of alternative traditionally on paper price tag.Each electronic shelf label is by wired or nothing
Gauze network is connected with market database, and newest commodity price is shown by the display screen on electronic shelf label, mainly should
For each field such as big and middle market supermarket and small-sized high-grade retail shop and warehouse logisticses.
The passive electronic shelf label for using in the market be based primarily upon NFC technique exploitation, using 13.56MHz without
Source RFID carries out data transmission, so as to reach the merchandise news of electronic-paper display screen curtain on modification electronic shelf label, such as Fig. 1 institutes
Show, but, because using 13.56MHz passive RFIDs transmission data, power supply energy needed for built-in single-chip microcomputer is by NFC device
Antenna and electronic shelf label on antenna carry out coupled resonance acquisition, so in order to obtain enough energy, it is necessary to
It is sufficiently large that the antenna of NFC device does, but in the market meets desired NFC device seldom, only Samsung S4 above version mobile phone
Support, because energy is not enough, mobile phone must be close together with electronic shelf label and could rewrite screen message, and rewrite letter
Breath speed is very slow (needing 7-10 seconds), and the screen more than 2.2 cun cannot just be rewritten.
Chinese patent 201220583367.7 discloses a kind of RFID can show electronic tag, and it includes：Receive RFID signal
The semi-passive electronic tags of RFID, it includes memory block, can be used to store the information for receiving；Central processing unit, transfers RFID
The information of semi-passive electronic tag storage, and send information to Electronic Paper screen drive circuit；Electronic Paper screen drive circuit, its use
In driving Electronic Paper on-screen-display message；Electronic Paper screen, its drive signal for being used to receive the transmission of Electronic Paper screen drive circuit shows
The information that the semi-passive electronic tags of RFID are received；Power supply, for powering to electronic tag internal circuit can be shown.The RFID
The information that electronic tag not only easily can in real time show and update goods can be shown, additionally it is possible to which being conveniently placed on arbitrarily can be with
On the shelf of adsorption magnet 3, and because the use characteristic of Electronic Paper screen may be such that the consumption of power supply greatly reduces.
Above-mentioned patent uses semi-passive electronic tag, can not fully achieve Electronic Paper screen drive part and electricity
Source part is combined into an entirety, really as passive electronic label.
Therefore, it is necessary to design a kind of passive electronic label system, be arranged on battery in other equipment by realization, by it
His equipment and the cooperation of Electronic Paper screen, realize electrical connection, and the connection of Electronic Paper screen and single-chip microcomputer is realized indirectly, and reduces cost is interior
Put battery to power single-chip microcomputer, energy is sufficient, remote modification Electronic Paper screen information is rewritten distance and is more than 5 meters, and to changing electricity
The mobile terminal transmission energy size no requirement (NR) of sub- paper screen information, the larger sized Electronic Paper screen that can be done, visual effect is more
It is good.
The content of the invention
A kind of defect it is an object of the invention to overcome prior art, there is provided passive electronic label system and method.
To achieve the above object, the present invention uses following technical scheme：A kind of passive electronic label system, including communication unit
Unit and label body, the communication unit include power module, communication module and data processing module, the label body
Including drive module and Electronic Paper screen, wherein, power module, for data processing module, drive module and Electronic Paper
Screen power supply；Communication module, the modification information for receiving mobile terminal；Data processing module, to modification information
Reason, is modified by drive module to the display information of Electronic Paper screen；Drive module, the letter for receiving data processing module
Breath, drives Electronic Paper screen to enter row information modification；Electronic Paper screen, the drive signal for receiving drive module transmission, display is received
The information for arriving.
Its further technical scheme is：The power module includes charge port, battery management module and battery, charge port
The power supply that external charging equipment is provided is received, and is transmitted to battery management module；It is defeated that the battery management module receives charge port
The power supply for entering, transmits to battery；The battery, after it receives power supply, powers to data processing unit, and to drive module and
Electronic Paper screen is powered.
Its further technical scheme is：The data processing module includes single-chip microcomputer, its letter for receiving communication module transmission
Breath, after carrying out data processing, is delivered to drive module.
Its further technical scheme is：The single-chip microcomputer and drive module are electrically connected by Demountable.
Its further technical scheme is：The Demountable includes golden finger, and the golden finger position is in communication unit
On thimble portion and the metal chip in label body, the thimble portion and the monolithic mechatronics, the metal
Chip is electrically connected with the drive module, and when thimble portion matches with metal chip, single-chip microcomputer is electrically connected with drive module, and is built
Vertical communication port.
Its further technical scheme is：Magnet, and institute are respectively equipped with the communication unit and in the label body
The magnetic for stating magnet in magnet on communication unit and the label body is different.
Its further technical scheme is：The upper end and lower end of the golden finger are provided with the magnet.
Its further technical scheme is：Voltage-stablizer is connected between the battery and the single-chip microcomputer.
Its further technical scheme is：The communication module is bluetooth.
Present invention also offers a kind of operating method of passive electronic label system, methods described includes：
When needing modification Electronic Paper screen display content, by magnet attraction, thimble portion coordinates with metal chip, and mobile terminal leads to
Bluetooth matching is crossed, modification information is transmitted to single-chip microcomputer, after being processed by single-chip microcomputer, via drive module, drive Electronic Paper screen display
Show modification information.
Compared with the prior art, the invention has the advantages that：A kind of passive electronic label system of the invention, by inciting somebody to action
Data processing module and power module are integrated on communication unit, with Electronic Paper screen not in same equipment, using bluetooth
Receive the modification information of mobile terminal transmission, speed faster, sets the connection that golden finger realizes single-chip microcomputer and drive module
Or communication is disconnected, and it is easy to use, battery is arranged in other equipment, it is real by the cooperation of other equipment and Electronic Paper screen
Now electrically connect, the connection of Electronic Paper screen and single-chip microcomputer is realized indirectly, reduces cost, internal battery is powered to single-chip microcomputer, and energy fills
Foot, it is remote to change Electronic Paper screen information, rewrite distance and be more than 5 meters, and to changing the mobile terminal transmission of Electronic Paper screen information
Energy size no requirement (NR), the larger sized Electronic Paper screen that can be done, visual effect is more preferably.
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the structured flowchart of the system of existing electronic tag；
The structured flowchart of the label body that Fig. 2 is provided for the specific embodiment of the invention；
The structured flowchart of the communication unit that Fig. 3 is provided for the specific embodiment of the invention.
Specific embodiment
In order to more fully understand technology contents of the invention, technical scheme is entered with reference to specific embodiment
One step introduction and explanation, but it is not limited to this.
A kind of specific embodiment as shown in Figures 1 to 3, passive electronic label system that the present embodiment is provided, can use
The place of shelf is provided with shop, warehouse etc., be arranged on battery 26 in other equipment by realization, by other equipment and Electronic Paper
The cooperation of screen 13, realizes electrical connection, and the connection of Electronic Paper screen 13 and single-chip microcomputer 23, reduces cost, internal battery 26 are realized indirectly
Single-chip microcomputer 23 is powered, energy is sufficient, Electronic Paper screen 13 is not required, the larger sized screen that can be done, visual effect
More preferably.
A kind of passive electronic label system, including communication unit and label body, communication unit include power module, lead to
Letter module and data processing module, label body include drive module 12 and Electronic Paper screen 13, wherein, power module is used
Powered in data processing module, drive module 12 and Electronic Paper screen 13；Communication module, the modification for receiving mobile terminal
Information；Data processing module, for processing modification information, by drive module 12 to the display information of Electronic Paper screen 13
Modify；Drive module 12, the information for receiving data processing module drives Electronic Paper screen 13 to enter row information modification；Electricity
Sub- paper screen 13, the drive signal for receiving the transmission of drive module 12, the information that display is received.
Communication unit and label body are two single equipment, and power module and data processing module are integrated in respectively
On communication unit, with Electronic Paper screen 13 not in same equipment, therefore, the size of Electronic Paper screen 13 is not by the shadow of battery 26
Ring, during modification Electronic Paper 13 display content of screen, reception, treatment and the transmission of data are carried out by data processing module, speed is more
Hurry up.
Further, power module includes charge port 27, battery management module 28 and battery 26, and charge port 27 is received
The power supply that external charging equipment is provided, and transmit to battery management module 28；Battery management module 28 receives charge port 27 and is input into
Power supply, transmit to battery 26；Battery 26, after it receives power supply, powers to data processing unit, and to drive module 12 and
Electronic Paper screen 13 is powered.
In addition, power module also includes battery capacity indication lamp 29, battery capacity indication lamp 29 is connected with battery management module 28, electricity
Indicator lamp 29 is used to indicate the working condition and current electric quantity of battery 26.
Data processing module includes single-chip microcomputer 23；Single-chip microcomputer 23, its information for receiving communication module transmission is carried out at data
After reason, drive module 12 is delivered to.
Data processing module also includes indicator lamp 21, and the indicator lamp 21 is connected with single-chip microcomputer 23, for indicating single-chip microcomputer
Working condition.
In the present embodiment, above-mentioned communication module is bluetooth 24；Electronic Paper screen 13 is changed instead of NFC using bluetooth 24
Curtain information, speed faster, as long as be furnished with the smart mobile phone of bluetooth more than 244.0.
In other embodiment, above-mentioned communication module can be Wi-Fi or ZigBee.
It is connected between battery 26 and the single-chip microcomputer 23 between voltage-stablizer 25, and battery 26 and voltage-stablizer 25 and is additionally provided with always
Switch, for the conducting of control battery 26 and single-chip microcomputer 23 manually with block.
In order to realize the communication of communication unit and label body or block, single-chip microcomputer 23 and drive module 12 are by can
Detachable structure is electrically connected.
Above-mentioned Demountable includes golden finger, and golden finger position is in the thimble portion 22 on communication unit and positioned at mark
The metal chip 11 on body is signed, thimble portion 22 is electrically connected with single-chip microcomputer 23, and metal chip 11 is electrically connected with drive module 12, when
When thimble portion 22 matches with metal chip 11, single-chip microcomputer 23 is electrically connected with drive module 12, and sets up communication port.
Golden finger (connecting finger) be computer hardware such as:On memory bar between internal memory metal chip 11, it is aobvious
Card and video card metal chip 11 etc., all of signal is all transmitted by golden finger.Golden finger is by numerous golden yellow
Conductive contact blade is constituted, because of its surface gold-plating and conductive contact blade arrangement such as finger-shaped, so being referred to as " golden finger ".
Further, magnet 3, and the magnetic on communication unit are respectively equipped with communication unit and in the label body
The magnetic of the magnet 3 in iron 3 and label body is different.
In the present embodiment, the number of magnet 3 in the number of magnet 3 and label body on communication unit is respectively 2,
The upper end and lower end of golden finger are provided with above-mentioned magnet 3, real by the adhesive of magnet 3 so that thimble coordinates with metal chip 11
Existing single-chip microcomputer 23 and the electrical connection of drive module 12, carry out the transmission of signal.
Certainly, distinguish in the number of magnet 3 in the number of magnet 3 and label body in other embodiment, communication unit
It it is at least 2, so, the upper end of golden finger, lower end, left end and right-hand member are respectively equipped with above-mentioned magnet 3, can cause communication
The connection of unit and label body is more consolidated, and prevents from cause thimble and metal chip 11 under the effect of other external force because rocking and waiting
Between loosening, it is impossible to be normally carried out the transmission of data.
The passive electronic label system of the present embodiment has lacked a He of single-chip microcomputer 23 relative to existing electronic labelling system
Channel chip, and communication unit can be shared to all electronic shelf labels, it is not necessary to a communication unit matches somebody with somebody a label, uses
Family cost is greatly reduced, and a such as market needs 10,000 electronic shelf labels, need to only match somebody with somebody 10 communication units, so straight
Connecing can save seven or eight ten thousand yuan of purchase costs (single-chip microcomputer 23 and yuan/of channel chip about 8).
A kind of above-mentioned passive electronic label system, communication unit is integrated in by by data processing module and power module
In unit, with Electronic Paper screen 13 not in same equipment, carry out receiving the modification information that mobile terminal is transmitted using bluetooth 24, speed
Degree faster, sets golden finger and realizes that single-chip microcomputer 23 communicates with the connection or disconnection of drive module 12, easy to use, by battery 26
It is arranged in other equipment, by the cooperation of other equipment and Electronic Paper screen 13, realizes electrical connection, Electronic Paper screen 13 is realized indirectly
With the connection of single-chip microcomputer 23, reduces cost, internal battery 26 powers to single-chip microcomputer 23, and energy is sufficient, and Electronic Paper is changed at a distance
Screen information, rewrites distance and is more than 5 meters, and to changing the mobile terminal transmission energy size no requirement (NR) of the information of Electronic Paper screen 13, can
With the larger sized Electronic Paper screen 13 for doing, visual effect is more preferably.
In addition, the present embodiment additionally provides a kind of operating method of passive electronic label system, the method includes：
When needing modification Electronic Paper 13 display content of screen, by the adhesive of magnet 3, thimble portion 22 coordinates with metal chip 11, moves
Dynamic terminal is matched by bluetooth 24, modification information is transmitted to single-chip microcomputer 23, after being processed by single-chip microcomputer 23, via drive module
12, drive Electronic Paper screen 13 to show modification information.
It is above-mentioned that technology contents of the invention are only further illustrated with embodiment, it is easier to understand in order to reader, but not
Represent embodiments of the present invention and be only limitted to this, any technology done according to the present invention extends or recreates, by of the invention
Protection.Protection scope of the present invention is defined by claims.
Claims (10)
1. a kind of passive electronic label system, it is characterised in that including communication unit and label body, the communication unit bag
Power module, communication module and data processing module are included, the label body includes drive module and Electronic Paper screen, its
In, power module, for being powered to data processing module, drive module and Electronic Paper screen；Communication module, for receiving movement
The modification information of terminal；Data processing module, for processing modification information, is shown by drive module to Electronic Paper screen
Show that information is modified；Drive module, the information for receiving data processing module drives Electronic Paper screen to enter row information modification；
Electronic Paper screen, the drive signal for receiving drive module transmission, the information that display is received.
2. a kind of passive electronic label system according to claim 1, it is characterised in that the power module includes charging
Mouth, battery management module and battery, charge port receive the power supply that external charging equipment is provided, and transmit to battery management mould
Block；The battery management module receives the power supply of charge port input, transmits to battery；The battery, after it receives power supply, to number
Powered according to processing unit, and powered to drive module and Electronic Paper screen.
3. a kind of passive electronic label system according to claim 2, it is characterised in that the data processing module includes
Single-chip microcomputer, its information for receiving communication module transmission after carrying out data processing, is delivered to drive module.
4. a kind of passive electronic label system according to claim 3, it is characterised in that the single-chip microcomputer and drive mould
Block is electrically connected by Demountable.
5. a kind of passive electronic label system according to claim 4, it is characterised in that the Demountable includes
Golden finger, the golden finger position is in the thimble portion on communication unit and the metal chip in label body, the thimble
Portion electrically connects with the monolithic mechatronics, the metal chip with the drive module, when thimble portion matches with metal chip
When, single-chip microcomputer is electrically connected with drive module, and sets up communication port.
6. a kind of passive electronic label system according to claim 5, it is characterised in that on the communication unit and institute
State and magnet be respectively equipped with label body, and the magnet in magnet on the communication unit and the label body magnetic phase
It is different.
7. a kind of passive electronic label system according to claim 6, it is characterised in that the upper end of the golden finger and
Lower end is provided with the magnet.
8. a kind of passive electronic label system according to claim 3, it is characterised in that the battery and the single-chip microcomputer
Between be connected with voltage-stablizer.
9. a kind of passive electronic label system according to any one of claim 3 to 8, it is characterised in that the communication mould
Block is bluetooth.
10. a kind of operating method of passive electronic label system, it is characterised in that methods described includes：
When needing modification Electronic Paper screen display content, by magnet attraction, thimble portion coordinates with metal chip, and mobile terminal is by indigo plant
Tooth is matched, and modification information is transmitted to single-chip microcomputer, after being processed by single-chip microcomputer, via drive module, is driven Electronic Paper screen to show and is repaiied
Convert to breath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710294236.4A CN106934447B (en) | 2017-04-28 | 2017-04-28 | Passive electronic tag system and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710294236.4A CN106934447B (en) | 2017-04-28 | 2017-04-28 | Passive electronic tag system and method thereof |
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| Publication Number | Publication Date |
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| CN106934447A true CN106934447A (en) | 2017-07-07 |
| CN106934447B CN106934447B (en) | 2023-06-16 |
Family
ID=59437272
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710294236.4A Active CN106934447B (en) | 2017-04-28 | 2017-04-28 | Passive electronic tag system and method thereof |
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| CN (1) | CN106934447B (en) |
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| CN108717564A (en) * | 2018-08-08 | 2018-10-30 | 河北科技大学 | Electronic tag |
| CN108830121A (en) * | 2018-08-08 | 2018-11-16 | 河北科技大学 | Electronic label read-write system for Row control |
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| CN108830121A (en) * | 2018-08-08 | 2018-11-16 | 河北科技大学 | Electronic label read-write system for Row control |
| CN108717564B (en) * | 2018-08-08 | 2023-12-19 | 河北科技大学 | Electronic label |
| CN108830121B (en) * | 2018-08-08 | 2023-12-19 | 河北科技大学 | Electronic tag read-write system for flow control |
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| CN106934447B (en) | 2023-06-16 |
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