CN111582412B - Two-way communication ESL electronic price tag communication system and method - Google Patents
Two-way communication ESL electronic price tag communication system and method Download PDFInfo
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- CN111582412B CN111582412B CN202010355453.1A CN202010355453A CN111582412B CN 111582412 B CN111582412 B CN 111582412B CN 202010355453 A CN202010355453 A CN 202010355453A CN 111582412 B CN111582412 B CN 111582412B
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- base station
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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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- 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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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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 Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a two-way communication ESL electronic price tag communication system and a communication method, comprising the following steps: the electronic price tag is provided with a plurality of electronic price tags, the electronic price tags are used for establishing one-to-one correspondence with commodities and displaying commodity prices, the wireless communication base station is provided with a No. 1 frequency antenna and a No. 2 frequency antenna, the No. 1 frequency antenna and the No. 2 frequency antenna are in wireless interactive communication connection with the electronic price tag through a 2.4G communication protocol, and the server is connected with the wireless communication base station in a wired mode. In the invention, the wireless communication base station is provided with the No. 1 frequency antenna and the No. 2 frequency antenna, so that the wireless communication base station can work at the No. 1 frequency and the No. 2 frequency to realize double-frequency work, and the No. 2 frequency is only used for modifying the information of the electronic price tag, thereby obviously reducing the interference and improving the stability of communication connection between the electronic price tag and the wireless communication base station.
Description
Technical Field
The invention relates to the technical field of electronic price tag communication systems, in particular to an ESL electronic price tag communication system and method for two-way communication.
Background
The ESL electronic price tag is a brand new generation multistable electronic display device which is placed on a goods shelf and can replace the traditional paper price tag and a TN type liquid crystal display screen, each electronic goods shelf tag is connected with a computer database of a market through a network, the latest information such as commodity price and the like is displayed through a screen on the electronic goods shelf tag, the electronic goods shelf tag successfully brings the goods shelf into a computer program in fact, the situation of manually replacing the price tag is eliminated, and the price consistency between a cash register and the goods shelf is realized.
The currently used electronic price tag communication system and communication method work through one frequency, interference is easy to generate during work, communication connection stability between the electronic price tag and a wireless communication base station is affected, normal operation of a supermarket is affected, meanwhile, the electronic price tag communication system manages a plurality of electronic price tags through one wireless communication base station, and the traditional information interaction method only realizes single communication interaction, cannot realize batch communication interaction and affects efficiency.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an ESL electronic price tag communication system and method for two-way communication.
In order to achieve the above purpose, the present invention adopts the following technical scheme: an ESL electronic price tag communication system for two-way communication, comprising: electronic price tags, wireless communication base stations and servers;
the electronic price tags are arranged in a plurality, and are used for establishing one-to-one correspondence with the commodities and displaying the commodity prices;
the wireless communication base station is provided with a No. 1 frequency antenna and a No. 2 frequency antenna, and the No. 1 frequency antenna and the No. 2 frequency antenna are both in wireless interactive communication connection with the electronic price tag through a 2.4G communication protocol;
the server is connected with the wireless communication base station in a wired mode, and is used for processing the modification requirement of the client database and distributing the modification task information of the corresponding commodity information to the corresponding wireless communication base station;
the wireless communication base station is used for acquiring task information issued by the server and uploading electronic price tag state information acquired by the current wireless communication base station, and the wireless communication base station is also used for acquiring current task information of each electric price tag and wirelessly distributing the task information acquired from the server to the electronic price tag.
As a further description of the above technical solution:
the wireless communication base station can work in frequency No. 1 and frequency No. 2 at the same time.
A communication method of an ESL electronic price tag for two-way communication comprises the following steps:
s1: when the electronic price tag does not need to modify the task, the electronic price tag and the wireless communication base station work at the frequency 1;
s2: when the server transmits the modification task information of the electronic price tag to the wireless communication base station, the wireless communication base station is in a broadcasting state within 0-1 second, and the task information is broadcast to the electronic price tag through the frequency No. 1;
s3: within 1-20 seconds, the electronic price tag automatically jumps to the No. 2 frequency after receiving the signal and sends a request packet to the wireless communication base station at regular time, and when the wireless communication base station does not execute other electronic price tag tasks, the wireless communication base station sends the information of the modification task to the electronic price tag sending the request packet through the No. 2 antenna;
s4: after the electronic price tag receives the modification task information, the electronic price tag automatically returns to the frequency 1 after the modification task is completed according to the received modification task information, and the electronic price tag is fed back to the wireless communication base station to complete the modification task
As a further description of the above technical solution:
in the step S2, the wireless communication base station transmits information to the electronic price tag through the frequency No. 1, and the method includes the following steps:
s2.1: the wireless communication base station is in a broadcasting state, and all electronic price tags can hear information broadcast by the base station;
s2.2: and the wireless communication base station extracts the ID number of the electronic price tag with the task and then broadcasts the corresponding task information after the ID number.
As a further description of the above technical solution:
the step S5 is to receive and modify the task information and identify the task information by comparing the ID number of the electronic price tag with the corresponding ID number of the task information broadcast by the wireless communication base station, and the electronic price tag corresponding to the identified electronic price tag automatically jumps to the frequency of No. 2.
As a further description of the above technical solution:
in the step S3, in the time period No. 2 frequency of 1-20 seconds, the No. 2 frequency antenna of the wireless communication base station is completely in a passive state.
As a further description of the above technical solution:
in the step S3, the electronic price tag sends a request packet to the wireless communication base station at the frequency No. 2, and when the wireless communication base station does not respond, the electronic price tag randomly delays a period of time to try to send the request packet to the wireless communication base station again until the modification task information transmitted by the wireless communication base station is successfully obtained.
Advantageous effects
The invention provides a two-way communication ESL electronic price tag communication system and a two-way communication ESL electronic price tag communication method. The beneficial effects are as follows:
(1): the wireless communication base station of the ESL electronic price tag communication system and the method for two-way communication is provided with the No. 1 frequency antenna and the No. 2 frequency antenna, so that the wireless communication base station can work at the No. 1 frequency and the No. 2 frequency to realize double-frequency work, and the No. 2 frequency is only used for modifying information of the electronic price tag, thereby obviously reducing interference and improving the communication connection stability between the electronic price tag and the wireless communication base station.
(2): according to the two-way communication ESL electronic price tag communication system and method, when the wireless communication base station transmits the modified task information to the electronic price tags, the wireless communication base station is in a broadcasting state, all the electronic price tags can hear the information broadcast by the base station, meanwhile, the wireless communication base station extracts the ID numbers of the electronic price tags with tasks, and then broadcasts the task information corresponding to the ID numbers out to be acquired by the electronic price tags corresponding to the ID numbers, so that the electronic price tags are actively driven in batches, and the efficiency is remarkably improved.
Drawings
FIG. 1 is a schematic diagram of a two-way ESL electronic price tag communication system according to the present invention;
fig. 2 is a schematic diagram of a wireless communication base station according to the present invention;
FIG. 3 is a schematic diagram of a two-way ESL electronic price tag communication method according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
As shown in fig. 1-2, an ESL electronic price tag communication system for two-way communication, comprising: electronic price tags, wireless communication base stations and servers;
the electronic price tags are arranged in a plurality, are used for establishing one-to-one correspondence with the commodities, and display commodity prices;
the wireless communication base station is provided with a No. 1 frequency antenna and a No. 2 frequency antenna, and the No. 1 frequency antenna and the No. 2 frequency antenna are both in wireless interactive communication connection with the electronic price tag through a 2.4G communication protocol;
the server is connected with the wireless communication base station in a wired mode, and is used for processing the modification requirement of the client database and distributing the modification task information of the corresponding commodity information to the corresponding wireless communication base station;
the wireless communication base station is used for acquiring task information issued by the server and uploading electronic price tag state information acquired by the current wireless communication base station, and the wireless communication base station is also used for acquiring current task information of each electric price tag and wirelessly distributing the task information acquired from the server to the electronic price tag.
The wireless communication base station can work in frequency number 1 and frequency number 2 at the same time.
As shown in fig. 3, a communication method of the ESL electronic price tag for two-way communication includes the following steps:
s1: when the electronic price tag does not need to modify the task, the electronic price tag and the wireless communication base station work at the frequency 1;
s2: when the server transmits the modification task information of the electronic price tag to the wireless communication base station, the wireless communication base station is in a broadcasting state within 0-1 second, and the task information is broadcast to the electronic price tag through the frequency No. 1;
s3: within 1-20 seconds, the electronic price tag automatically jumps to the No. 2 frequency after receiving the signal and sends a request packet to the wireless communication base station at regular time, and when the wireless communication base station does not execute other electronic price tag tasks, the wireless communication base station sends the information of the modification task to the electronic price tag sending the request packet through the No. 2 antenna;
s4: after the electronic price tag receives the modification task information, the electronic price tag automatically returns to the frequency 1 after the modification task is completed according to the received modification task information, and the electronic price tag is fed back to the wireless communication base station to complete the modification task.
In step S2, the wireless communication base station transmits information to the electronic price tag through the frequency No. 1, which includes the following steps:
s2.1: the wireless communication base station is in a broadcasting state, and all electronic price tags can hear information broadcast by the base station;
s2.2: and the wireless communication base station extracts the ID number of the electronic price tag with the task and then broadcasts the corresponding task information after the ID number.
And S5, the electronic price sign receiving and modifying task information and the task information identification method is to compare and identify the ID number of the electronic price sign with the corresponding ID number of the task information broadcasted by the wireless communication base station, and the electronic price sign corresponding to the electronic price sign after identification automatically jumps to the frequency of No. 2.
And S3, in the frequency No. 2 of the time period of 1-20 seconds, the frequency No. 2 antenna of the wireless communication base station is completely in a passive state.
In step S3, the electronic price tag transmits a request packet to the wireless communication base station at frequency No. 2, and when the wireless communication base station does not respond, the electronic price tag randomly delays for a period of time to try to transmit the request packet to the wireless communication base station again until the modification task information transmitted by the wireless communication base station is successfully acquired
The time line in the frequency 1 is circulated, namely, the time line runs continuously for 1 second and 20 seconds, when the base station is active, all electronic price tags are in a monitoring state during broadcasting every 1S, time synchronization between the electronic price tags and the wireless communication base station is carried out during each interaction, for example, when broadcasting, the electronic price tags can receive time information sent by the wireless communication base station, and thus, the electronic price tags know how many seconds later the wireless communication base station broadcasts next time.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (3)
1. The communication method of the ESL electronic price tag for two-way communication is characterized by comprising the following steps of:
s1: when the electronic price tag does not need to modify the task, the electronic price tag and the wireless communication base station work at the frequency 1; s2: when the server transmits the modification task information of the electronic price tag to the wireless communication base station, the wireless communication base station is in a broadcasting state within 0-1 second, and the task information is broadcast to the electronic price tag through the frequency No. 1; s3: within 1-20 seconds, the electronic price tag automatically jumps to the No. 2 frequency after receiving the signal and sends a request packet to the wireless communication base station at regular time, and when the wireless communication base station does not execute other electronic price tag tasks, the wireless communication base station sends the information of the modification task to the electronic price tag sending the request packet through the No. 2 antenna; s4: after the electronic price tag receives the modification task information, the electronic price tag automatically returns to the frequency 1 after the modification task is completed according to the received modification task information, and the electronic price tag is fed back to the wireless communication base station to complete the modification task;
in the step S2, the wireless communication base station transmits information to the electronic price tag through the frequency No. 1, and the method includes the following steps: s2.1: the wireless communication base station is in a broadcasting state, and all electronic price tags can hear information broadcast by the base station; s2.2: the wireless communication base station extracts the ID number of the electronic price tag with the task, and then broadcasts the corresponding task information after the ID number; the step S4 is to receive and modify the task information by the electronic price tag and to identify the task information by comparing the ID number of the electronic price tag with the corresponding ID number of the task information broadcast by the wireless communication base station, and the electronic price tag corresponding to the electronic price tag after identification automatically jumps to the frequency No. 2.
2. The method according to claim 1, wherein the step S3 is performed such that the frequency antenna No. 2 of the wireless communication base station is completely in a passive state in the frequency No. 2 of the 1-20 second period.
3. The method according to claim 1, wherein in the step S3, the electronic price tag sends the request packet to the wireless communication base station at frequency No. 2, and when the wireless communication base station does not respond, the electronic price tag will randomly delay a period of time to try to send the request packet to the wireless communication base station again until the modified task information transmitted by the wireless communication base station is successfully obtained.
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112087740B (en) * | 2020-09-18 | 2022-11-15 | 深圳赛时达科技有限公司 | Data transmission method of electronic price tag system and electronic price tag system |
| CN112351413B (en) * | 2020-09-28 | 2023-03-21 | 思创医惠科技股份有限公司 | Multi-base-station electronic tag system based on batch paging |
| CN112507745A (en) * | 2020-11-27 | 2021-03-16 | 雅量商业智能技术(广州)有限公司 | Electronic price tag data modification method based on NFC |
| CN114444630A (en) * | 2022-01-24 | 2022-05-06 | 江苏宙斯物联网科技集团股份有限公司 | Electronic price tag management system for multi-user multi-base station data |
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