CN110610215A - eSIM technology-based commodity electronic price tag system and updating method - Google Patents
eSIM technology-based commodity electronic price tag system and updating method Download PDFInfo
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- CN110610215A CN110610215A CN201910700151.0A CN201910700151A CN110610215A CN 110610215 A CN110610215 A CN 110610215A CN 201910700151 A CN201910700151 A CN 201910700151A CN 110610215 A CN110610215 A CN 110610215A
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- 238000005516 engineering process Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000004891 communication Methods 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
- G06F16/245—Query processing
- G06F16/2455—Query execution
- G06F16/24552—Database cache management
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/35—Services specially adapted for particular environments, situations or purposes for the management of goods or merchandise
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
- H04W8/183—Processing at user equipment or user record carrier
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- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention discloses a commodity electronic price tag system based on an eSIM technology and an updating method, comprising the following steps: s100, a plurality of electronic price tag devices subscribe respective message topics to the electronic price tag management platform; s200, a user sends an electronic price tag change instruction with a specific message theme to the electronic price tag management platform; s300, the electronic price tag management platform sends an electronic price tag change instruction to the electronic price tag equipment subscribed with a specific message theme; s400, the electronic price tag devices check subscription information to the electronic price tag management platform, and the electronic price tag devices subscribed with a specific theme receive and display price change instructions.
Description
Technical Field
The invention relates to the field of electronic price tags, in particular to a commodity electronic price tag system and an updating method based on an eSIM technology.
Background
In the field of traditional price tags, the price tags are generally made of paper materials and are placed on commodity shelves by means of fixing supports. The price tag is printed with basic commodity information of the commodity, such as unit price, variety, and the like, so that a client can easily know the commodity information before purchasing the commodity. When the price of the commodity changes, the user needs to typeset, print and cut the label content on the computer, then distribute the cut label to other workers, and go to the side of the shelf and replace the original label on the shelf. The price tag content updating period is long; the price tag material wastes paper.
Although some electronic price tags appear in the market, the price tags, without exception, use a base station as a transfer station of data, when a user needs to update price tag information, data is firstly pushed to the base station, the base station is provided with an antenna, the base station carries out communication through the electronic price tag within a certain distance around the base station through the antenna, and data transmission is carried out to push commodity data to the electronic price tag, and the electronic price tag drives an electronic ink screen to display the commodity information. Because the base station generally needs to be connected to a local area network environment of a user local through an Ethernet or a Wi-Fi network, the local area network bandwidth needs to be occupied, meanwhile, the coverage range of each base station antenna is limited, commodity information can only be pushed to a plurality of electronic price tags in a fixed area around the base station, and for a large-scale market environment, a plurality of electronic price tag base stations need to be distributed dispersedly to cover all electronic price tags in a business field. The electronic price tag system must be set up by a professional network-knowledge technician.
An intelligent IC card provided by an SIM card mobile communication operator is used for identity authentication of a terminal user accessing an operator network, a traditional SIM is a physical card, the operator writes card data according to user identity information and delivers the card data to a user, the user inserts the SIM into a card slot of terminal equipment after receiving the SIM card, and when the terminal accesses the network, the terminal communicates with the SIM card through an ISO7816 interface and performs authentication. The traditional physical SIM card has a lot of inconveniences in the production and use process, such as: before the product is delivered to users, the batch production is difficult; poor contact is caused by the physical card in a plugging mode; the physical card is limited by the production process, and the size cannot be reduced. An eSIM card, i.e., Embedded-SIM, Embedded SIM card. The eSIM card concept is to embed a conventional SIM card directly onto the device chip rather than adding it as a separate removable component to the device, without the user having to insert a physical SIM card. This will allow the user more flexibility in choosing a package of operators or changing operators at any time without having to unlock the equipment or purchase new equipment.
If the eSIM technology is applied to the electronic price tag, the complexity of the system can be simplified, and no effective solution is provided at present for the problems in the related art.
Disclosure of Invention
Aiming at the technical problems in the related art, the invention provides an eSIM technology-based commodity electronic price tag system and an updating method thereof, which can simplify the electronic price tag system and solve the problem of inconvenience in the production and use processes of a physical SIM card.
In order to achieve the technical purpose, the technical scheme of the invention is realized as follows:
a commodity electronic price tag system based on an eSIM technology comprises a plurality of electronic price tag devices, wherein eSIM chips are arranged in the electronic price tag devices and are connected with a wide area network through the eSIM chips; the system also comprises an electronic price tag issuing platform connected with the wide area network; and the plurality of electronic price tag devices are in communication connection with the electronic price tag issuing platform through a wide area network.
Further, the electronic price tag device further includes: the communication module is used for authenticating the user data and the user identity on the eSIM chip, passing through the modem and then being in communication connection with a wide area network through an external antenna; the adapter is used for converting the information of the electronic price tag issuing platform received by the communication module into a displayable data format; the electronic ink screen is used for displaying the data format information which can be displayed and is converted by the adapter; the eSIM chip is used for user identity authentication of the wide area network accessed by the electronic price tag equipment.
Further, an input/output end of the eSIM chip is connected to a user authentication input/output end of the communication module, a user data input/output end of the communication module is connected to a second end of the adaptor, and a first end of the adaptor is connected to an input end of the electronic ink screen.
Furthermore, a network address of the electronic price tag management platform is arranged in the electronic price tag device.
An updating method of the electronic price tag system for goods based on the eSIM technology, comprising the steps of:
s100, a plurality of electronic price tag devices subscribe respective message topics to the electronic price tag management platform;
s200, a user sends an electronic price tag change instruction with a specific message theme to the electronic price tag management platform;
s300, the electronic price tag management platform sends an electronic price tag change instruction to the electronic price tag equipment subscribed with a specific message theme;
s400, the electronic price tag devices check subscription information to the electronic price tag management platform, and the electronic price tag devices subscribed with a specific theme receive and display price change instructions.
Further, before the step S100 of subscribing the respective message topic from the electronic price tag management platform by a plurality of electronic price tag devices, the method includes the steps of:
s010, the electronic price tag equipment sends registration information data to the electronic price tag management platform, and the electronic price tag management platform caches the registration information data in a local database.
Further, the step S200 of sending, by the user, the electronic price tag change instruction with the specific theme to the electronic price tag management platform specifically includes the steps of:
s210, a user logs in the electronic price tag management platform;
s220, the user inquires all the registered electronic price tag devices and the subscription message subjects of each electronic price tag device;
s320, the user selects corresponding electronic price tag equipment according to the commodity information of which the price is required to be changed, and then sends an electronic price tag change instruction with a corresponding theme to the electronic price tag management platform.
Further, in step S010, the sending, by the electronic price tag device, the registration information data to the electronic price tag management platform, where the caching, by the electronic price tag management platform, the registration information data in a local database specifically includes:
s011, electrifying the electronic price tag equipment;
s012, sending registration information to the electronic price tag management platform by the electronic price tag equipment through a TCP/IP protocol, wherein the registration information comprises a unique ID of the electronic price tag equipment and a wide area network IP address;
s013, after the electronic price tag management platform receives the registration information of the electronic price tag equipment, information data are cached in a local database and are used for inquiring of electronic price tag users.
Further, the step S400 of checking, by the electronic price tag devices, subscription information to the electronic price tag management platform, and the step of receiving and displaying a price change instruction by the electronic price tag devices subscribed to a specific topic specifically includes the steps of:
s410, every time interval, a plurality of electronic price tag devices check subscription information from the electronic price tag management platform and check whether an electronic price tag change instruction exists;
s420, if the message theme of the electronic price tag change instruction is checked to be consistent with the message theme subscribed by the electronic price tag change device, receiving the message;
s430 the adapter converts the electronic price tag change instruction into a data format which can be displayed by an electronic ink screen, and displays information on the electronic ink screen of the electronic price tag device.
Further, in step S100, subscribing, by the plurality of electronic price tag devices to the electronic price tag management platform, respective message topics specifically include:
and the plurality of electronic price tag devices subscribe the message topics of the respective MQTT to the electronic price tag management platform.
The invention has the beneficial effects that:
1. the invention does not use the traditional SIM card, but uses the eSIM chip to replace the traditional SIM card, so that the failure occurrence probability of the equipment is reduced in the operation process, the area of a circuit board is greatly reduced, the installation space is compressed, and the stability, the practicability and the maintainability of the product can be greatly improved.
2. The eSIM chip can facilitate the replacement of operators and select the operator package more flexibly.
3. The invention uses the cellular data network of the operator, reduces the requirement of the implementation environment and accelerates the equipment installation period.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic diagram of a connection of an electronic price tag device to an electronic price tag cloud platform;
FIG. 2 is a schematic diagram of the structure of an electronic price tag device;
fig. 3 is a flowchart of an updating method of an electronic price tag system for goods based on eSIM technology.
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 that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
As shown in fig. 1, the electronic price tagging system for goods based on the eSIM technology according to the embodiment of the present invention includes a plurality of electronic price tagging devices, where the electronic price tagging devices are provided with eSIM chips and are connected to a wide area network through the eSIM chips; the system also comprises an electronic price tag issuing platform connected with the wide area network; and the plurality of electronic price tag devices are in communication connection with the electronic price tag issuing platform through a wide area network.
The operational environment of electron price tag equipment often has very big difference, the environment of some high temperature humidity, some are in the environment of vibration, various problems may take place for traditional SIM card, and the eSIM chip is smaller and more exquisite, waterproof leakproofness is better, do not worry like traditional SIM card has the risk that the contact pine takes off or corrodes, the eSIM chip is connected the common removal UNICOM telecommunication cellular network of wide area network optional, it is more convenient than traditional SIM card to change the operator moreover.
In one embodiment of the present invention, the electronic price tag device includes: the communication module is used for authenticating the user data and the user identity on the eSIM chip, passing through the modem and then being in communication connection with a wide area network through an external antenna; the adapter is used for converting the information of the electronic price tag issuing platform received by the communication module into a displayable data format; the electronic ink screen is used for displaying the data format information which can be displayed and is converted by the adapter; the eSIM chip is used for user identity authentication of the wide area network accessed by the electronic price tag equipment.
The communication module guarantees the normal receipt and the transmission of signal, and the adapter compares the format that information conversion cost equipment can show with common liquid crystal display, and the electronic ink screen is only in the conversion display content need power consumptive in the twinkling of an eye, shows when the conversion is accomplished and does not need the electric quantity, and very suitable this kind of application occasion of long-term display fixed image of electronic price tag equipment.
In an embodiment of the invention, the input/output end of the eSIM chip is connected to the user authentication input/output end of the communication module, the user data input/output end of the communication module is connected to the second end of the adaptor, and the first end of the adaptor is connected to the input end of the electronic ink screen.
In an embodiment of the present invention, a network address of the electronic price tag management platform is built in the electronic price tag device.
And the electronic price tag equipment logs in and accesses the electronic price tag management platform through a preset network address.
An updating method of an electronic price tag system for goods based on an eSIM technology as described in any one of the above, comprising the steps of:
s100, a plurality of electronic price tag devices subscribe respective message topics to the electronic price tag management platform;
s200, a user sends an electronic price tag change instruction with a specific message theme to the electronic price tag management platform;
s300, the electronic price tag management platform sends an electronic price tag change instruction to the electronic price tag equipment subscribed with a specific message theme;
s400, the electronic price tag devices check subscription information to the electronic price tag management platform, and the electronic price tag devices subscribed with a specific theme receive and display price change instructions.
Each electronic price tag device is provided with a unique corresponding theme message, the instruction sent by the electronic price tag management platform is also provided with the theme message, and the electronic price tag device can receive the instruction only if the theme message of the electronic price tag device is the same as the theme message of the electronic price tag management platform, so that the electronic price tag device is convenient to classify and manage.
In an embodiment of the present invention, before the step S100 of subscribing the respective message topic from the electronic price tag management platform by the plurality of electronic price tag devices, the method includes the steps of:
s010, the electronic price tag equipment sends registration information data to the electronic price tag management platform, and the electronic price tag management platform caches the registration information data in a local database.
Compared with the method of acquiring the registration information data in real time through a wide area network, the electronic price tag management platform is more smooth and faster in reading the data cached to the local, and the network bandwidth is also saved.
In a specific embodiment of the present invention, the step S200 of sending, by the user, the electronic price tag change instruction with the specific theme to the electronic price tag management platform specifically includes the steps of:
s210, a user logs in the electronic price tag management platform;
s220, the user inquires all the registered electronic price tag devices and the subscription message subjects of each electronic price tag device;
s320, the user selects corresponding electronic price tag equipment according to the commodity information of which the price is required to be changed, and then sends an electronic price tag change instruction with a corresponding theme to the electronic price tag management platform.
The user can visually see the subscription message subject of each electronic price tag device, and then select the corresponding electronic price tag device to send the message, wherein the sent message has the same message subject as the selected electronic price tag device.
In a specific embodiment of the present invention, the step S010 of sending, by the electronic price tag device, registration information data to the electronic price tag management platform, where caching, by the electronic price tag management platform, the registration information data in a local database specifically includes:
s011, electrifying the electronic price tag equipment;
s012, sending registration information to the electronic price tag management platform by the electronic price tag equipment through a TCP/IP protocol, wherein the registration information comprises a unique ID of the electronic price tag equipment and a wide area network IP address;
s013, after the electronic price tag management platform receives the registration information of the electronic price tag equipment, information data are cached in a local database and are used for inquiring of electronic price tag users.
The ID of the electronic price tag device is equivalent to an identity code of the electronic price tag device and is key data for identifying different electronic price tag devices, the wide area network IP address is an address of the electronic price tag device accessed by the electronic price tag management platform, and the electronic price tag management platform reads information and states of the electronic price tag device through the wide area network IP address.
In an embodiment of the present invention, in the step S400, the electronic price tags check subscription information from the electronic price tag management platform, and the step of receiving and displaying a price change instruction by the electronic price tag device subscribed to a specific topic specifically includes the steps of:
s410, every time interval, a plurality of electronic price tag devices check subscription information from the electronic price tag management platform and check whether an electronic price tag change instruction exists;
s420, if the message theme of the electronic price tag change instruction is checked to be consistent with the message theme subscribed by the electronic price tag change device, receiving the message;
s430 the adapter converts the electronic price tag change instruction into a data format which can be displayed by an electronic ink screen, and displays information on the electronic ink screen of the electronic price tag device.
The requirement of the electronic price tag device on real-time synchronous display of the message is not high, the subscription message is checked at intervals, the power consumption of the electronic price tag device can be saved, the access amount of an electronic price tag management platform can be reduced, and the data transmission is smoother.
In a specific embodiment of the present invention, the step S100 of subscribing, by a plurality of the electronic price tag devices, respective message topics to the electronic price tag management platform specifically includes:
and the plurality of electronic price tag devices subscribe the message topics of the respective MQTT to the electronic price tag management platform.
MQTT is a publish/subscribe messaging protocol designed for remote devices with poor hardware performance and in poor network conditions, and is suitable for the electronic price tag system of the present application.
In order to facilitate understanding of the above-described technical aspects of the present invention, the above-described technical aspects of the present invention will be described in detail below in terms of specific usage.
When the electronic price tag equipment leaves a factory, a network address of an electronic price tag management platform is preset in the equipment.
After the electronic price tag equipment leaves a factory, a user only needs to place the electronic price tag at a proper position and electrify the electronic price tag equipment, and then the equipment implementation can be completed.
When the electronic price tag equipment is powered on for the first time, immediately sending registration information to the electronic price tag management platform through a TCP/IP protocol, wherein the registration information comprises the unique ID of the electronic price tag, the IP address of a wide area network and other information, and the wide area network connected with the electronic price tag equipment can be a common mobile communication telecommunication network; after receiving the registration data of the electronic price tag equipment, the electronic price tag management platform caches the registration data in a local database for an electronic price tag user to inquire and use; the electronic price tag management platform can be operated on a handheld device and also can be operated through a computer.
After the electronic price tag device finishes registering on the electronic price tag management platform, MQTT data messages are subscribed to the electronic price tag management platform, then every 8 seconds, the subscribed messages are checked from the electronic price tag management platform, whether new messages are published to the electronic price tag management platform, if the new messages are published to the electronic price tag management platform, the messages are received, the message content is converted into a data format which can be displayed by the electronic price tag, and information such as the price and the name of a commodity is displayed on a screen of the electronic price tag device.
When data such as the price of a commodity needs to be changed, an electronic price tag user firstly logs in an electronic price tag management platform, inquires all registered electronic price tag devices, selects a corresponding electronic price tag device list according to commodity information of which the price needs to be changed, and then sends an electronic price tag price change instruction to the electronic price tag management platform.
After receiving an instruction of updating the price of the electronic price tag required by a user, the electronic price tag management platform forwards an electronic price tag price updating instruction to corresponding electronic price tag equipment according to instruction information, wherein the sent content comprises a theme subscribed in advance by the electronic price tag, only the electronic price tag subscribed with a specific theme can receive corresponding content, and the updated content is displayed on an electronic ink screen of the electronic price tag management platform; if there is no new message, the previous information continues to be displayed. The subject matter to which the electronic price tag device subscribes may be changed to facilitate changing the place of use of the electronic price tag device.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A commodity electronic price tag system based on an eSIM technology comprises a plurality of electronic price tag devices, and is characterized in that:
the electronic price tag devices are provided with eSIM chips and are connected with a wide area network through the eSIM chips;
the system also comprises an electronic price tag issuing platform connected with the wide area network;
and the plurality of electronic price tag devices are in communication connection with the electronic price tag issuing platform through a wide area network.
2. The eSIM technology-based merchandise electronic price tag system of claim 1, wherein said electronic price tag device further comprises:
the communication module is used for authenticating the user data and the user identity on the eSIM chip, passing through the modem and then being in communication connection with a wide area network through an external antenna;
the adapter is used for converting the information of the electronic price tag issuing platform received by the communication module into a displayable data format;
the electronic ink screen is used for displaying the data format information which can be displayed and is converted by the adapter; the eSIM chip is used for user identity authentication of the wide area network accessed by the electronic price tag equipment.
3. The eSIM technology-based merchandise electronic price tag system of claim 2, wherein:
the input/output end of the eSIM chip is connected with the user identity authentication input/output end of the communication module, the user data input/output end of the communication module is connected with the second end of the adapter, and the first end of the adapter is connected with the input end of the electronic ink screen.
4. The eSIM technology-based merchandise electronic price tag system of claim 1, wherein: and a network address of the electronic price tag management platform is arranged in the electronic price tag equipment.
5. A method for updating an eSIM technology-based merchandise electronic price tag system according to any one of claims 1-4, comprising the steps of:
s100, a plurality of electronic price tag devices subscribe respective message topics to the electronic price tag management platform;
s200, a user sends an electronic price tag change instruction with a specific message theme to the electronic price tag management platform;
s300, the electronic price tag management platform sends an electronic price tag change instruction to the electronic price tag equipment subscribed with a specific message theme;
s400, the electronic price tag devices check subscription information to the electronic price tag management platform, and the electronic price tag devices subscribed with a specific theme receive and display price change instructions.
6. The method for updating an eSIM technology-based merchandise electronic price tag system according to claim 5, wherein the step S100 of subscribing the respective message topic from the electronic price tag management platform by the electronic price tag devices comprises the steps of:
s010, the electronic price tag equipment sends registration information data to the electronic price tag management platform, and the electronic price tag management platform caches the registration information data in a local database.
7. The method for updating an electronic price tag system for goods based on an eSIM technology as claimed in claim 5, wherein the step S200 of sending an electronic price tag change instruction with a specific theme to the electronic price tag management platform by a user specifically comprises the steps of:
s210, a user logs in the electronic price tag management platform;
s220, the user inquires all the registered electronic price tag devices and the subscription message subjects of each electronic price tag device;
s320, the user selects corresponding electronic price tag equipment according to the commodity information of which the price is required to be changed, and then sends an electronic price tag change instruction with a corresponding theme to the electronic price tag management platform.
8. The method for updating an eSIM-technology-based electronic price tag system for goods according to claim 6, wherein the step S010 is that the electronic price tag device sends registration information data to the electronic price tag management platform, and the caching of the registration information data by the electronic price tag management platform into a local database specifically includes:
s011, electrifying the electronic price tag equipment;
s012, sending registration information to the electronic price tag management platform by the electronic price tag equipment through a TCP/IP protocol, wherein the registration information comprises a unique ID of the electronic price tag equipment and a wide area network IP address;
s013, after the electronic price tag management platform receives the registration information of the electronic price tag equipment, information data are cached in a local database and are used for inquiring of electronic price tag users.
9. The method for updating an eSIM technology-based merchandise electronic price tag system according to claim 5, wherein the step S400 of checking a subscription message from the electronic price tag management platform by the electronic price tag devices, and the step of receiving and displaying a price change instruction by the electronic price tag device subscribed to a specific topic specifically comprises the steps of:
s410, every time interval, a plurality of electronic price tag devices check subscription information from the electronic price tag management platform and check whether an electronic price tag change instruction exists;
s420, if the message theme of the electronic price tag change instruction is checked to be consistent with the message theme subscribed by the electronic price tag change device, receiving the message;
s430 the adapter converts the electronic price tag change instruction into a data format which can be displayed by an electronic ink screen, and displays information on the electronic ink screen of the electronic price tag device.
10. The method for updating an eSIM-technology-based electronic price tag system for goods according to claim 5, wherein the step S100 of subscribing respective message themes from the electronic price tag management platform by the electronic price tag devices specifically comprises:
and the plurality of electronic price tag devices subscribe the message topics of the respective MQTT to the electronic price tag management platform.
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| CN201910700151.0A CN110610215A (en) | 2019-07-31 | 2019-07-31 | eSIM technology-based commodity electronic price tag system and updating method |
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| CN201910700151.0A CN110610215A (en) | 2019-07-31 | 2019-07-31 | eSIM technology-based commodity electronic price tag system and updating method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113301064A (en) * | 2020-02-24 | 2021-08-24 | 汉朔科技股份有限公司 | Electronic price tag controller, terminal, communication system and method |
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Application publication date: 20191224 |