CN113327558A - Battery-free electronic ink display screen based on NFC - Google Patents
Battery-free electronic ink display screen based on NFC Download PDFInfo
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- CN113327558A CN113327558A CN202110512425.0A CN202110512425A CN113327558A CN 113327558 A CN113327558 A CN 113327558A CN 202110512425 A CN202110512425 A CN 202110512425A CN 113327558 A CN113327558 A CN 113327558A
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- nfc
- electronic ink
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- battery
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- 239000003990 capacitor Substances 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims abstract description 8
- 230000003993 interaction Effects 0.000 claims description 3
- 230000002452 interceptive effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000004146 energy storage Methods 0.000 claims 1
- 101100236764 Caenorhabditis elegans mcu-1 gene Proteins 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 description 4
- 238000009499 grossing Methods 0.000 description 2
- 238000003306 harvesting Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3433—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
- G09G3/344—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices based on particles moving in a fluid or in a gas, e.g. electrophoretic devices
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Signal Processing (AREA)
- Computer Hardware Design (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
- General Health & Medical Sciences (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Power Sources (AREA)
Abstract
The invention discloses a battery-free electronic ink display screen based on NFC, which comprises a master control MCU, an NFC reader-writer, a capacitor and an electronic ink screen, wherein the master control MCU is respectively connected with the NFC reader-writer and the electronic ink screen, and the master control MCU1 is provided with the capacitor; this no battery electron ink display screen based on NFC, the energy is gathered and is gone on through RFC antenna port, and the voltage of gathering is level and smooth through electric capacity, for inside LDO power supply, provides MCU's operating voltage to external output, the system contains the self-adaptation energy simultaneously and gathers the function. Although the RFC antenna can be used for supplying power to the outside by adopting power, the RFC antenna does not have a protection function, the system power supply voltage is pulled down when the load is heavier, the NFC communication is interrupted, and therefore the power supply device is only suitable for supplying power to a medium-low power continuous load.
Description
Technical Field
The invention relates to the technical field of NFC near field communication and electronic ink, in particular to a battery-free electronic ink display screen based on NFC.
Background
Near field communication is a new technology, and devices using the NFC technology can exchange data when they are close to each other, and by integrating functions of an inductive card reader, an inductive card, and point-to-point communication on a single chip, applications such as mobile payment, electronic ticketing, door access, mobile identification, and anti-counterfeiting are implemented using a mobile terminal.
Electronic ink is a new method and technology for revolutionizing the way information is displayed. The display screen has the advantages of low power consumption, ultra-thin, visibility under strong light, no flicker, no radiation, large visual angle and the like. The electronic shelf label is very suitable for being used on the electronic shelf label.
The electronic ink screen mainly displays black and white. Although a color electronic paper screen appears, the color of the electronic paper screen is far from the requirements of people, the electronic paper screen is not enough for displaying dynamic videos, and the refresh rate of the electronic ink screen is extremely low due to the working principle of the electronic ink screen, so that the display of dynamic contents cannot be met.
Disclosure of Invention
The invention aims to provide a battery-free electronic ink display screen based on NFC, and aims to solve the problems that the color of a color electronic paper screen provided in the background technology is far from meeting the requirements of people, dynamic videos are not enough to be displayed, and the refresh rate of the electronic ink screen is extremely low due to the working principle of the electronic ink screen, so that the dynamic content display cannot be met.
In order to achieve the purpose, the invention provides the following technical scheme: a battery-free electronic ink display screen based on NFC comprises a master control MCU, an NFC reader-writer, a capacitor and an electronic ink screen, wherein the master control MCU is respectively connected with the NFC reader-writer and the electronic ink screen and is connected with the capacitor;
the NFC controller and the external NFC equipment are used for near field interaction and data temporary storage, the data interface is used for driving the electronic ink screen to complete refreshing and displaying of the electronic ink screen, and the energy collection and energy management are used for smoothing and storing collected voltage through a capacitor through an RFC antenna, so that working voltage of the main control MCU is provided and is output externally.
The work flow of the battery-free electronic ink display screen based on NFC is as follows:
s10: APP preparation operation, the NFC reader-writer 2 configures a secret key and display data;
s20: approaching the equipment, wherein when approaching the equipment, the radio frequency signal supplies power to the equipment, the equipment is started, and the equipment and the NFC reader-writer 2 perform interactive identification;
s30: equipment authentication is carried out, the safety of the equipment is improved, and the next communication can be carried out only after the authentication is passed;
s40: transmitting display information, converting data to be displayed into pictures with a specified format by an APP, and sending the pictures to equipment;
s50: refreshing the electronic ink screen 4: the device drives the ink screen to update the display data.
Compared with the prior art, the invention has the beneficial effects that: the NFC-based batteryless electronic ink display,
energy is gathered and is gone on through RFC antenna port, and the voltage of gathering is through electric capacity smoothness, for inside LDO power supply, provides MCU's operating voltage to external output, the system contains the self-adaptation energy simultaneously and gathers the function. Although power can be supplied to the outside by adopting the RFC antenna, the RFC antenna does not have a protection function, and when the load is heavier, the system power supply voltage can be reduced to cause the interruption of NFC communication, so the RFC antenna is only suitable for the power supply of a medium-low power continuous load;
in addition, energy collection and management promote and expand the efficiency and the function of traditional passive NFC interface, when using the common smart mobile phone that has the NFC interface as the NFC initiative interface, can realize wireless power receipt of at least 60 mW. When the mobile phone is matched with a new generation of mobile phones adopting an NXP NFC controller for use, wireless power receiving of 300mw can be realized. By matching with the characteristics of the ink screen, the equipment can operate only by using the wirelessly received energy without a built-in battery;
the battery-free electronic ink display screen based on NFC realizes wireless power taking, energy conservation and no need of a built-in battery, and is very suitable for scenes such as civil aviation luggage consignment cards, visitor cards, participation certificates, asset point management, shelf management, small supermarket price display cards and the like.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a flow chart of the operation of the present invention.
In the figure: the device comprises a master control MCU1, an NFC controller 101, a data interface 102, energy collection 103, energy management 104, an NFC reader-writer 2, a capacitor 3 and an electronic ink screen 4.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a no battery electronic ink display screen based on NFC, including master control MCU1, NFC read write line 2, electric capacity 3 and electronic ink screen 4, master control MCU1 is connected with NFC read write line 2 and electronic ink screen 4 control connection respectively, and master control MCU1 is connected with electric capacity 3, NFC read write line 2 has the cell-phone of NFC function, NFC read write line 2 and master control MCU1 accomplish equipment information reading and user data write in, electric capacity that electric capacity 3 storage antenna gathered, electronic ink screen 4 demonstrates user data, because the content of showing of electronic ink screen 4 display can still keep after the outage, so can only be power consumptive when refreshing the screen, and need not supply power at the screen refreshing end, realize no battery and show.
The integrated NFC controller 101 that has on master control MCU1, data interface 102, energy harvesting 103 and energy management 104, NFC controller 101 carries out near field interaction and data and keeps in with outside NFC equipment temporarily, data interface 102 is used for driving electron ink screen 4, accomplish the refresh and the demonstration of electron ink screen 4, energy harvesting 103 and energy management 104 pass through the RFC antenna and pass through electric capacity smoothing and storage with the voltage of gathering, provide master control MCU 1's operating voltage, and external output.
The work flow of the battery-free electronic ink display screen based on NFC is as follows:
s10: APP preparation operation, the NFC reader-writer 2 configures a secret key and display data;
s20: approaching the equipment, wherein when approaching the equipment, the radio frequency signal supplies power to the equipment, the equipment is started, and the equipment and the NFC reader-writer 2 perform interactive identification;
s30: equipment authentication is carried out, the safety of the equipment is improved, and the next communication can be carried out only after the authentication is passed;
s40: transmitting display information, converting data to be displayed into pictures with a specified format by an APP, and sending the pictures to equipment;
s50: refreshing the electronic ink screen 4: the device drives the ink screen to update the display data.
Those not described in detail in this specification are within the skill of the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (2)
1. The utility model provides a no battery electronic ink display screen based on NFC, includes master control MCU (1), NFC read write line (2), electric capacity (3) and electronic ink screen (4), its characterized in that: the master control MCU (1) is respectively connected with the NFC reader-writer (2) and the electronic ink screen (4), and the master control MCU (1) is connected with the capacitor 3;
the NFC energy storage device is characterized in that an NFC controller (101), a data interface (102), energy collection (103) and energy management (104) are integrated on the master control MCU (1), the NFC controller (101) and external NFC equipment carry out near field interaction and data temporary storage, the data interface (102) is used for driving the electronic ink screen (4), refreshing and display of the electronic ink screen (4) are completed, the collected voltage is smoothed and stored through a capacitor by the aid of the RFC antenna through the energy collection (103) and the energy management (104), working voltage of the master control MCU (1) is provided, and the collected voltage is output externally.
2. An NFC-based batteryless electronic ink display as recited in claim 1, wherein: the working process of the battery-free electronic ink display screen comprises the following steps:
s10: APP preparation operation, an NFC reader (2) configures a secret key and display data;
s20: the equipment is close to, when the equipment is close to, the radio frequency signal supplies power to the equipment, the equipment is started, and the equipment and the NFC reader-writer (2) perform interactive identification;
s30: equipment authentication is carried out, the safety of the equipment is improved, and the next communication can be carried out only after the authentication is passed;
s40: transmitting display information, converting data to be displayed into pictures with a specified format by an APP, and sending the pictures to equipment;
s50: electronic ink screen (4) refreshing: the device drives the ink screen to update the display data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110512425.0A CN113327558A (en) | 2021-05-11 | 2021-05-11 | Battery-free electronic ink display screen based on NFC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110512425.0A CN113327558A (en) | 2021-05-11 | 2021-05-11 | Battery-free electronic ink display screen based on NFC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113327558A true CN113327558A (en) | 2021-08-31 |
Family
ID=77415230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110512425.0A Withdrawn CN113327558A (en) | 2021-05-11 | 2021-05-11 | Battery-free electronic ink display screen based on NFC |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113327558A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114677973A (en) * | 2020-12-24 | 2022-06-28 | 元太科技工业股份有限公司 | Electrophoretic display device and driving method thereof |
| WO2023207993A1 (en) * | 2022-04-29 | 2023-11-02 | 京东方科技集团股份有限公司 | Display panel and display apparatus |
| CN117789665A (en) * | 2024-02-28 | 2024-03-29 | 深圳市每开创新科技有限公司 | Passive driving circuit of ink screen, control method thereof and mobile phone shell |
-
2021
- 2021-05-11 CN CN202110512425.0A patent/CN113327558A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114677973A (en) * | 2020-12-24 | 2022-06-28 | 元太科技工业股份有限公司 | Electrophoretic display device and driving method thereof |
| WO2023207993A1 (en) * | 2022-04-29 | 2023-11-02 | 京东方科技集团股份有限公司 | Display panel and display apparatus |
| CN117789665A (en) * | 2024-02-28 | 2024-03-29 | 深圳市每开创新科技有限公司 | Passive driving circuit of ink screen, control method thereof and mobile phone shell |
| CN117789665B (en) * | 2024-02-28 | 2024-05-10 | 深圳市每开创新科技有限公司 | Passive driving circuit of ink screen, control method thereof and mobile phone shell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210831 |