CN109547578A - Network-building method for electronics price tag system - Google Patents
Network-building method for electronics price tag system Download PDFInfo
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- CN109547578A CN109547578A CN201910049764.2A CN201910049764A CN109547578A CN 109547578 A CN109547578 A CN 109547578A CN 201910049764 A CN201910049764 A CN 201910049764A CN 109547578 A CN109547578 A CN 109547578A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/16—Gateway arrangements
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Abstract
The invention discloses a kind of network-building methods for electronics price tag system, are related to electronics price tag networking technology field, including data dynamic sending step: the random selection time, which wakes up, in preset time section sends broadcast message to gateway；Time zone configuration step: time zone is configured to the electronics price tag and time zone parameter information is sent to the electronics price tag；Wakeup time selects step: when being had not been obtained within a preset time to time zone parameter information, into suspend mode, and choosing the time of wake-up future time section in；Time calculates step: when getting time zone parameter information within a preset time, stopping the broadcast message for sending request distribution time zone, into suspend mode, and calculates to wake up next time and send the time that data update solicited message.The present invention sends broadcast message by the way that electronics price tag is segmented and is waken up at random in split time, to realize multiple electronics price tags and gateway rapidly networking automatically, to reduce network collision probability.
Description
Technical field
The present invention relates to electronics price tag networking technology field, in particular to a kind of networking sides for electronics price tag system
Method.
Background technique
Electronic shelf label, be it is a kind of be placed on shelf, the electronic display unit of alternative traditionally on paper price tag.
And electronics price tag system, it is cloud commodity library phase of each electronic shelf label by wired or wireless network and market
Even, and newest commodity price is shown by the screen on electronic shelf label.It, can be in commodity by using the system
When price changes, the price for changing electronic shelf label in real time is shown.
When current electronics price tag and gateway carries out networking, usually begin to while electronics price tag starts to gateway
The broadcast message for sending request networking will lead to data when there is a large amount of electronics price tag to send broadcast message to gateway simultaneously
Transmission send collision, there is a problem of that long span is big when easy congestion and networking, therefore, need a kind of pair of electronics price tag at present
Be segmented and wake up at random in split time sending the network-building method of broadcast message, to realize multiple electronics price tags and gateway
Automatic rapidly networking.
Summary of the invention
The invention is intended to provide a kind of network-building method for electronics price tag system, by being segmented simultaneously to electronics price tag
It wakes up at random in split time and sends broadcast message, to realize multiple electronics price tags and gateway rapidly networking automatically, with drop
Low network collision probability improves channel utilization.
In order to solve the above technical problems, base case provided by the invention is as follows:
Network-building method for electronics price tag system, comprising the following steps:
Data dynamic sending step: electronics price tag randomly choosed in preset time section the time wake up into wake up mould
Formula, and send and request the broadcast message in distribution time zone to gateway；
Verification step: when gateway listens to broadcast message, the electricity for sending the broadcast message is judged according to the broadcast message
Whether sub- price tag has been added in network；
Time zone configuration step: when judging that network is not added in a certain electronics price tag, simultaneously to electronics price tag configuration time zone
Time zone parameter information is sent to the electronics price tag；
Wakeup time selects step: when being had not been obtained within a preset time to time zone parameter information, switching awakening mode is
Suspend mode, and choose to wake up in future time section and send the time of the broadcast message in request distribution time zone；
Time calculates step: when getting time zone parameter information within a preset time, stopping sending request distribution time zone
Broadcast message, switching awakening mode is suspend mode, and wakes up next time according to the calculating of time zone parameter information and send data more
The time of new solicited message.
Technical solution of the present invention, electronics price tag are not added before network, and the most of the time is in suspend mode, by interior
The irregular wake-up of the timer in portion, specifically each electronics price tag all delimit having time section in advance, can be in preset time
One time of random selection, which wakes up, in section sends broadcast message to gateway, that is, request gateway distribution time zone, and starts
Feedback to gateway.
It, should according to the bit judgement in the broadcast message when gateway is listened to from the broadcast message of electronics price tag
Whether electronics price tag joined network, when judging that network is not added in a certain electronics price tag, configure time zone to the electronics price tag
And time zone parameter information is sent to the electronics price tag, to realize that different electronics price tags occupies different time zone.
If electronics price tag is not received by the time zone parameter information from gateway within a preset time, just switching is waken up
Mode is suspend mode, and chooses the time waken up in future time section, so that electronics price tag continues suspend mode, and next
Waken up in a time interval according to the time selected before and again transmission broadcast message to gateway, that is, attempt again with net
Close networking；If receiving the time zone parameter information from gateway within a preset time, illustrate that gateway gives the electrovalence
Label are assigned with time zone, will stop the broadcast message for sending request distribution time zone, also just complete networking, and switching awakening mode is
Suspend mode, and the electronics price tag can calculate to wake up next time according to time zone parameter information and send data update solicited message
Time, that is, wake up next time and establish connection with gateway to carry out the update of data to electronics price tag.
The beneficial effects of the present invention are:
1, electronics price tag randomly choosed in preset time section the time wake up send request distribution time zone broadcast message,
Remaining time in a dormant state, saves power consumption；In conjunction with ALOHA agreement, electrovalence is signed and issued send the time of broadcast message into
Row segmentation, due to the time random selection that electronics price tag is waken up, the time that different electronics price tags are waken up is different, leads to multiple electronics
Network collision probability when price tag and gateway networking is reduced, and is reduced amount of collisions, is improved the utilization rate of channel, to realize
The fast automatic networking of a large amount of electronics price tags.
2, during networking, gateway can distribute respective time zone to each electronics price tag, and a gateway is responsible for pipe
Multiple electronics price tags are managed, each electronics price tag occupies a time zone, and electronics price tag is calculated according to the time zone of oneself wakes up next time
The time that data update solicited message is sent, different electronics price tags, which is waken up, sends the time that data update solicited message to gateway
With regard to difference, the orderly progress of electronics price tag and gateway communication is realized, generation when avoiding countless electronics price tags and gateway communication
The case where collision interference, and then avoid the loss of information.
Further, the data dynamic sending step: the time that electronics price tag is waken up in preset time section is starting
Time, and start to send the wide of request distribution time zone successively in different frequency ranges in preset time interval with initial time
Information is broadcast to gateway；
The wakeup time selects step: when being had not been obtained in sometime section to time zone parameter information, switching is called out
Mode of waking up is suspend mode, and chooses the time waken up in future time section.
There are multiple frequency ranges available when electronics price tag is with gateway communication, when electronics price tag is called out in some time interval
When waking up, starts first frequency range of selection and send the broadcast message in request distribution time zone, and judge whether to receive in the time interval
To the time zone parameter information from gateway, when not received in the time interval from the time zone parameter information of gateway,
Continue the broadcast message for selecting next frequency range to send request distribution time zone, until electronics price tag gets time zone parameter information
Stop sending the broadcast message in request distribution time zone；If the time zone parameter information of gateway sometime has not been obtained in section,
Also the feedback that the broadcast message that electronics price tag is sent in all frequency ranges does not obtain gateway is just represented, then enters suspend mode,
And choose the broadcast message in the time retransmission request distribution time zone waken up in future time section.
Further, bluetooth connection between the electronics price tag and gateway, electronics price tag select frequency range according to bluetooth BLE agreement
It sends and requests the broadcast message in distribution time zone to gateway.
Between electronics price tag and gateway use bluetooth connection communication mode, can reduce data transmission power consumption and at
This；Electronics price tag sends broadcast message in high, medium and low frequency range according to bluetooth BLE agreement, improves number while reducing power consumption
According to efficiency of transmission.
Further, the gateway includes that mode and single device addition mode is added in batch, further includes:
Mode handoff procedures: mode is added for the batch that manager switches gateway and mode is added in single device.
Tool allows networking to become more flexible and user-friendly there are two types of the mode of networking；When mode is added in batch, permit
Perhaps network is added in a large amount of electronics price tag；When mode is added in single device, specified electronics price tag is allowed to be added in network.
Further, the verification step: when gateway is in batch, and mode is added, if listen to broadcast message, according to
The broadcast message judges whether the electronics price tag for sending the broadcast message has been added in network；Further include:
List of devices generation step: it when gateway is in single device, and mode is added, for manager's input needs that network is added
Electronics price tag facility information, and generate new equipment list；
The time zone configuration step: when gateway is in single device, and mode is added, if receiving from new equipment list
In electronics price tag broadcast message, then configured for the electronics price tag and time zone and time zone parameter information be sent to the electrovalence
Label.
When gateway is in batch, and mode is added, when whether network is added to according to electronics price tag to determine whether when distribution
Area, but be then that time zone is distributed according to new equipment list when mode is added in single device, it is specifically, few when needing
When network is added in the electronics price tag of amount, the facility information of these electronics price tags is inputted, list of devices generation module will basis
The facility information of electronics price tag generates new equipment list, if gateway receives the electronics price tag in new equipment list
Broadcast message then configures time zone for the electronics price tag.
Further, the electronics price tag generating device list of network, the equipment list of devices generation step: will be added
List includes the facility information of each electronics price tag.
When electronics price tag networking success, list of devices generation module can set all electronics price tag generations that network is added
Standby list, so that administrative staff be facilitated to realize checking and managing to electronics price tag by list of devices.
Detailed description of the invention
Fig. 1 is schematic block diagram of the present invention for the network-building method embodiment of electronics price tag system；
Fig. 2 is flow chart of the present invention for the network-building method of electronics price tag system；
Fig. 3 is the timing diagram that the present invention is sent for the broadcast message of the network-building method embodiment of electronics price tag system；
Fig. 4 is the present invention for the load of the Pure Aloha network of the network-building method embodiment of electronics price tag system and gulps down
Spit the function relation figure of rate.
Specific embodiment
It is further described below by specific embodiment:
For the clearer network-building method for illustrating the present invention and being used for electronics price tag system, in the present embodiment, also disclose
A kind of electronics price tag system, as shown in Figure 1, electronics price tag includes the electronics price tag and gateway of network connection.
One, electronics price tag
The invention discloses a kind of electronics price tags, as shown in Figure 1, comprising:
Data dynamic sending module is waken up for randomly choosing the time in preset time section into awakening mode, and
Using wake-up time as initial time, and start successively to send out in different frequency ranges in preset time interval with initial time
Send the broadcast message in request distribution time zone to gateway；Electronics price tag includes suspend mode and awakening mode, and electronics price tag does not add
Before entering network, the most of the time is in suspend mode, passes through the internal irregular wake-up of timer；Specifically each electronics
Price tag all in advance delimit having time section, can in preset time section randomly choose a time wake up send broadcast message to
Gateway, that is, request gateway distribute time zone, and start waiting the feedback of gateway；Electronics price tag is according to bluetooth in the present embodiment
BLE agreement selects frequency range, and specifically, including high, medium and low three frequency ranges first select low-frequency range to send when electronics price tag is waken up
Broadcast message selects Mid Frequency to send broadcast message if not receiving the feedback of gateway in preset time interval, if
The feedback for receiving gateway in preset time interval not yet then continues that high band is selected to send broadcast message.
Judgment module, for judging whether receive the time zone parameter letter from gateway in preset time interval
Breath；Specifically, prefixed time interval is less than preset time interval；
Wakeup time selecting module, for cutting when the time zone parameter information of gateway has not been obtained in sometime section
Change awakening mode be suspend mode, and choose wake up in future time section send request distribution time zone broadcast message when
Between；Specifically, if being not received by the time zone parameter information from gateway in preset time section, just switching wakes up mould
Formula is suspend mode, and chooses the time waken up in future time section, so that electronics price tag continues suspend mode, and next
It wakes up in time interval according to the time selected before and sends broadcast message again to gateway.
Time computing module sends request distribution time zone for stopping when getting the time zone parameter information of gateway
Broadcast message, switching awakening mode are suspend mode, and are waken up next time according to the calculating of time zone parameter information and send data update
The time of solicited message.Specifically, if receiving the time zone parameter information from gateway, explanation in preset time section
Gateway is assigned with time zone to the electronics price tag, will stop the broadcast message for sending request distribution time zone, also just complete
Networking, switching awakening mode is suspend mode, and the electronics price tag can calculate hair of waking up next time according to time zone parameter information
The time for sending data to update solicited message, that is, wake up next time and establish connection with gateway to carry out data to electronics price tag
It updates.
Two, gateway
It is blue between electronics price tag and gateway in the present embodiment the invention also discloses a kind of gateway being connect with electronics price tag
Tooth connection, as shown in Figure 1, gateway includes that mode and single device addition mode is added in batch, further includes:
Mode switch module, mode is added for the batch for switching gateway for manager and mode is added in single device；Have
The mode of two kinds of networkings allows networking to become more flexible and user-friendly；When mode is added in batch, allow a large amount of electronics
Network is added in price tag；When mode is added in single device, specified electronics price tag is allowed to be added in network；
Authentication module, for if listen to broadcast message, being believed according to the broadcast when gateway is in batch and mode is added
Breath judges whether the electronics price tag for sending the broadcast message has been added in network；Specifically, according to the bit in the broadcast message
Position judges whether the electronics price tag joined network；
Time zone configuration module, when for when judging that network is not added in a certain electronics price tag, giving electronics price tag configuration
Time zone parameter information is simultaneously sent to the electronics price tag by area；
List of devices generation module, for needing to be added for manager's input when gateway is in single device and mode is added
The facility information of the electronics price tag of network, and generate new equipment list；
The time zone configuration module is also used to set if receiving from newly when gateway is in single device and mode is added
The broadcast message of electronics price tag in standby list then configures time zone for the electronics price tag and time zone parameter information is sent to the electricity
Sub- price tag；
The list of devices generation module is also used to be added the electronics price tag generating device list of network, the equipment
List includes the facility information of each electronics price tag.When electronics price tag networking success, list of devices generation module can will own
The electronics price tag generating device list of network is added, so that administrative staff be facilitated to look by list of devices realization electronics price tag
It sees and manages.
Three, the present invention is used for the network-building method of electronics price tag system, as shown in Figure 2, comprising the following steps:
Data dynamic sending step: electronics price tag randomly choosed in preset time section the time wake up into wake up mould
Formula, and the time to wake up starts in preset time interval as initial time, and with initial time in different frequency ranges
On successively send the broadcast message in request distribution time zone to gateway；
Verification step: when gateway is in batch, and mode is added, if listen to broadcast message, sentenced according to the broadcast message
Whether the disconnected electronics price tag for sending the broadcast message has been added in network；
Time zone configuration step: when judging that network is not added in a certain electronics price tag, simultaneously to electronics price tag configuration time zone
Time zone parameter information is sent to the electronics price tag；
Wakeup time selects step: when being had not been obtained in sometime section to time zone parameter information, switching wakes up mould
Formula is suspend mode, and chooses to wake up in future time section and send the time of the broadcast message in request distribution time zone；
Time calculates step: when getting time zone parameter information within a preset time, stopping sending request distribution time zone
Broadcast message, switching awakening mode is suspend mode, and wakes up next time according to the calculating of time zone parameter information and send data more
The time of new solicited message；
List of devices generation step: it when gateway is in single device, and mode is added, for manager's input needs that network is added
Electronics price tag facility information, and generate new equipment list；The electronics price tag generating device list of network will be added, it is described to set
Standby list includes the facility information of each electronics price tag；
The time zone configuration step: when gateway is in single device, and mode is added, if receiving from new equipment list
In electronics price tag broadcast message, then configured for the electronics price tag and time zone and time zone parameter information be sent to the electrovalence
Label.
Illustrate specifically networking step are as follows:
S1: setting preset time section a: assuming that gateway is at most responsible for 1024 electronics price tags of management, each electrovalence
It wakes up within label average 15.36 seconds to gateway and sends a broadcast message, that is, preset time section is 15.36 seconds, is based on
Such a total time span and number of devices, a gateway is mutually disjoint each other by maintenance 1024, and span is
15.36/1024=15 the time zone of millisecond.
S2: the random selection time wakes up in time interval 15.36 seconds, that is, is switched to wake-up mould from suspend mode
Formula using wake-up time as initial time, and is started in preset time interval in different frequency ranges successively with initial time
It sends and requests the broadcast message in distribution time zone to gateway；As shown in figure 3, the high, medium and low frequency range of the present embodiment is respectively frequency range
37,38,39, after the broadcast message (ADV_IND) that frequency range 37 sends request distribution time zone, if not receiving the reply of gateway,
After a period of time, such as after 1.25 milliseconds, it has sent the broadcast message in a request distribution time zone in frequency range 38 again, at this point,
If gateway has received broadcast message, and the interval time (T_IFS) defined in Bluetooth specification feeds back to electronics price tag time zone ginseng
Number information, then illustrate electronics price tag networking success, and electronics price tag then stops sending the broadcast message in request distribution time zone, switching
Awakening mode is suspend mode, and according to time zone parameter information calculate wake up next time send data update solicited message when
Between.
S3: if having sent broadcast message in frequency range 37,38,39, and in frequency range 39 after transmission broadcast message
1.25 milliseconds of interval time after do not receive also gateway feedback time zone parameter information, then illustrate the electronics price tag networking not at
Function, switching awakening mode are suspend mode, and choose the time that future time section wakes up in 15.36 seconds, that is, need
It wakes up next time and again attempts to carry out networking with gateway.
1, mode is added when gateway is in batch
When gateway batch be added mode when, allow electronics price tag to be largely added to network.Such case is usually
When network is established for the first time.There is a large amount of electronics price tag to need that network is added at this time, the time zone of oneself is got from gateway.This
When, gateway is in SCANNING state, when it listens to the bit table in the broadcast message of electronics price tag and broadcast message
Show that the electronics price tag is not currently in any network, i.e., networking is carried out by above-mentioned S1, S2, S3.
2, mode is added when gateway is in single device
When gateway single device be added mode when, only allow specified electronics price tag to be added to network.For manager head
First input needs to be added the facility information of the electronics price tag of network, and gateway is automatically generated according to the facility information of these electronics price tags
New equipment list.When gateway receives the broadcast message that the electrovalence in this new equipment list signs and issues the request distribution time zone sent
When, the interval time that will be defined in Bluetooth specification feeds back to electronics price tag time zone parameter information, to complete to its time zone
Setting.
Four, result verification
In the specific implementation process, we can be by the broadcast message (ADV_IND) and time zone parameter in request distribution time zone
The data format length of information (TIMEZONE_IND) is fixed up, in this way under batch addition mode, so electronics price tag
Pure ALOHA (or unslotted ALOHA) network modelling can be used with the communication process of gateway.Table is first is that ours is
Packet length defined in system, Fig. 4 are the load of Pure Aloha network and the functional relation respective value of throughput.
Table one
Referring to shown in table one and Fig. 4, wherein S=G*e-2G, for load G, we can calculate in this way, i.e. G=1000 is false
If the network of 1000 BLE Node nodes, the frequency that each node is given out a contract for a project is that 15s sends out one, and each holding continues ADV_IND and is
Then 176us waits 150us, last BLE Gateway to send TIMEZONE_IND and continues 176us.That is (176 during this
+ 150+176=502us) in s, it can averagely send out G=1000*502/ (15*1000000)=0.033 packet.Since G is much smaller than reason
The network load (G=0.5) thought, we have every reason to believe that 1000 nodes cracking can be assigned to the time zone of oneself,
I.e. network collision probability can rapidly converge to 0.Here the average networking time is only calculated, does not represent the single networking time, practical group
Netting the time may be smaller, because the probability to collide is also smaller and smaller as the successful node of networking is more and more.
What has been described above is only an embodiment of the present invention, and the common sense such as well known specific structure and characteristic are not made herein in scheme
Excessive description.It, without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these also should be considered as protection scope of the present invention, these all will not influence what the present invention was implemented
Effect and patent practicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as specific embodiment can be used for explaining the content of claim.
Claims (6)
1. being used for the network-building method of electronics price tag system, which comprises the following steps:
Data dynamic sending step: electronics price tag randomly chooses the time in preset time section and wakes up into awakening mode, and
It sends and requests the broadcast message in distribution time zone to gateway；
Verification step: when gateway listens to broadcast message, the electrovalence for sending the broadcast message is judged according to the broadcast message
Whether label have been added in network；
Time zone configuration step: when judging that network is not added in a certain electronics price tag, to the electronics price tag configuration time zone and by when
Area's parameter information is sent to the electronics price tag；
Wakeup time selects step: when being had not been obtained within a preset time to time zone parameter information, switching awakening mode is suspend mode
Mode, and choose to wake up in future time section and send the time of the broadcast message in request distribution time zone；
Time calculates step: when getting time zone parameter information within a preset time, stopping sending the wide of request distribution time zone
Broadcast information, switching awakening mode is suspend mode, and wakes up according to the calculating of time zone parameter information next time and to send data update and ask
Ask the time of information.
2. the network-building method according to claim 1 for electronics price tag system, which is characterized in that the data dynamic is sent out
Send step: the time that electronics price tag is waken up in preset time section is initial time, and is started with initial time preset
Successively sending in different frequency ranges in time interval requests the broadcast message in distribution time zone to gateway；
The wakeup time selects step: when being had not been obtained in sometime section to time zone parameter information, switching wakes up mould
Formula is suspend mode, and chooses the time waken up in future time section.
3. the network-building method according to claim 2 for electronics price tag system, which is characterized in that the electronics price tag with
Bluetooth connection between gateway, electronics price tag send the broadcast message in request distribution time zone extremely according to bluetooth BLE agreement selection frequency range
Gateway.
4. the network-building method according to claim 1 for electronics price tag system, which is characterized in that the gateway includes batch
It measures addition mode and mode is added in single device, further includes:
Mode handoff procedures: mode is added for the batch that manager switches gateway and mode is added in single device.
5. the network-building method according to claim 4 for electronics price tag system, which is characterized in that the verification step:
When gateway is in batch, and mode is added, if listen to broadcast message, judged to send the broadcast message according to the broadcast message
Electronics price tag whether be added in network；Further include:
List of devices generation step: when gateway is in single device, and mode is added, need to be added the electricity of network for manager's input
The facility information of sub- price tag, and generate new equipment list；
The time zone configuration step: when gateway is in single device, and mode is added, if receiving in new equipment list
The broadcast message of electronics price tag then configures time zone for the electronics price tag and time zone parameter information is sent to the electronics price tag.
6. the network-building method according to claim 5 for electronics price tag system, which is characterized in that the list of devices is raw
At step: the electronics price tag generating device list of network will be added, the list of devices includes the equipment letter of each electronics price tag
Breath.
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| CN110012439A (en) * | 2019-04-16 | 2019-07-12 | 重庆物奇科技有限公司 | Synchronous method for electronics price tag |
| CN110035397A (en) * | 2019-04-16 | 2019-07-19 | 重庆物奇科技有限公司 | A kind of gateway and electronics price tag system |
| CN110446273A (en) * | 2019-07-30 | 2019-11-12 | 深圳市天工测控技术有限公司 | A kind of method and apparatus based on electronics price tag networking |
| CN111935799A (en) * | 2020-09-28 | 2020-11-13 | 浙江汉朔电子科技有限公司 | Base station selection method and system for electronic price tags |
| WO2020238423A1 (en) * | 2019-05-30 | 2020-12-03 | 深圳云里物里科技股份有限公司 | Data communication method, system and related assemblies for electronic shelf label |
| CN112272395A (en) * | 2020-11-25 | 2021-01-26 | 努比亚技术有限公司 | Electronic price sign-on network backoff method, equipment and computer readable storage medium |
| CN113099513A (en) * | 2021-03-29 | 2021-07-09 | 努比亚技术有限公司 | Base station selection method, electronic terminal and computer readable storage medium |
| CN114979974A (en) * | 2022-04-13 | 2022-08-30 | 深圳市智岩科技有限公司 | Wireless control method, device and equipment |
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| CN110012439A (en) * | 2019-04-16 | 2019-07-12 | 重庆物奇科技有限公司 | Synchronous method for electronics price tag |
| CN110035397A (en) * | 2019-04-16 | 2019-07-19 | 重庆物奇科技有限公司 | A kind of gateway and electronics price tag system |
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| CN111935799A (en) * | 2020-09-28 | 2020-11-13 | 浙江汉朔电子科技有限公司 | Base station selection method and system for electronic price tags |
| CN111935799B (en) * | 2020-09-28 | 2021-03-16 | 汉朔科技股份有限公司 | Base station selection method and system for electronic price tags |
| CN112272395A (en) * | 2020-11-25 | 2021-01-26 | 努比亚技术有限公司 | Electronic price sign-on network backoff method, equipment and computer readable storage medium |
| CN113099513A (en) * | 2021-03-29 | 2021-07-09 | 努比亚技术有限公司 | Base station selection method, electronic terminal and computer readable storage medium |
| CN113099513B (en) * | 2021-03-29 | 2023-12-08 | 深圳市中兴移动软件有限公司 | Base station selection method, electronic terminal and computer readable storage medium |
| CN114979974A (en) * | 2022-04-13 | 2022-08-30 | 深圳市智岩科技有限公司 | Wireless control method, device and equipment |
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