CN109831747B - Low-energy-consumption electronic price tag system - Google Patents
Low-energy-consumption electronic price tag system Download PDFInfo
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- CN109831747B CN109831747B CN201910049767.6A CN201910049767A CN109831747B CN 109831747 B CN109831747 B CN 109831747B CN 201910049767 A CN201910049767 A CN 201910049767A CN 109831747 B CN109831747 B CN 109831747B
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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
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- 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
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- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention relates to the technical field of electronic price tags, in particular to a low-energy-consumption electronic price tag system which comprises an electronic price tag and gateway equipment, wherein the gateway equipment comprises an updating acquisition module, a monitoring module and a time zone setting module, the updating acquisition module is used for acquiring the updating content of the electronic price tag from a server, the monitoring module is used for monitoring and receiving networking information sent by the electronic price tag, and the time zone setting module is used for sending time zone synchronization information to the electronic price tag after receiving the networking information sent by the electronic price tag; the electronic price tag comprises a networking sending module, a time zone synchronization module, a data updating module and a dormancy module, wherein the networking sending module is used for waking up the electronic price tag and broadcasting networking information at random time in each time zone by taking a first preset time as one time zone. The low-energy-consumption electronic price tag system can reduce the power consumption of the electronic price tag, improve the networking efficiency and shorten the networking time.
Description
Technical Field
The invention relates to the technical field of electronic price tags, in particular to a low-energy-consumption electronic price tag system.
Background
In recent years, a new retail business state of online-to-offline integration gradually gets wide attention of the market, and meanwhile, the problem of how to realize the connection between offline business surpassing and online e-business platforms, namely how to timely and accurately synchronize the product information change to different online and offline scenes, is faced. Traditional paper labels cannot do this, and electronic price labels (ESLs) can update commodity information in time through wireless communication and synchronize to each large platform, thereby improving retail operation efficiency. Therefore, electronic shelf labels will become an important push behind new retail sales.
However, there is no unified and effective standard for such a new need for wireless communication technology that implements electronic price tags. Related schemes are mainly realized through Bluetooth BLE at present, and a Mesh networking protocol of the Bluetooth technology alliance is also provided to meet networking requirements of the Internet of things. Due to the characteristics of the Mesh protocol and the special requirements of the price tag on data transmission and power consumption, if the price tag is directly added into the Mesh network as node equipment, network collision is easy to occur during networking or data transmission, so that the problems of low networking speed and high power consumption exist, and the specific parameter requirements of mainstream manufacturers and customers are difficult to meet.
Disclosure of Invention
The invention aims to provide a low-energy-consumption electronic price tag system which can reduce the power consumption of the electronic price tag, improve the networking efficiency and shorten the networking time.
In order to solve the technical problem, the present application provides the following technical solutions:
the low-energy-consumption electronic price tag system comprises an electronic price tag and gateway equipment, wherein the gateway equipment comprises an updating acquisition module, a monitoring module and a time zone setting module, the updating acquisition module is used for acquiring the updating content of the electronic price tag from a server, the monitoring module is used for monitoring and receiving networking information sent by the electronic price tag, and the time zone setting module is used for sending time zone synchronization information to the electronic price tag after receiving the networking information sent by the electronic price tag;
the electronic price tag comprises a networking sending module, a time zone synchronization module, a data updating module and a dormancy module, wherein the networking sending module is used for waking up the electronic price tag and broadcasting networking information at random time in each time zone by taking a first preset time as one time zone; the time zone synchronization module is used for receiving time zone synchronization information sent by the gateway equipment, synchronously setting the time zone of the gateway equipment according to the time zone synchronization information and calculating the time of next awakening, the dormancy module is used for enabling the electronic price tag to be in a dormancy mode, and the data updating module is used for acquiring updating content from the gateway equipment and updating the display content of the electronic price tag.
In the present application, a time zone refers to a time interval with a fixed duration, and in the present application, time is divided into a plurality of time zones, and the time zones are used as a measurement unit of time.
According to the technical scheme, by setting the time zone and enabling each electronic price tag to broadcast networking information at random time of the time zone, the probability of network collision can be effectively avoided, networking efficiency is improved, and networking time is shortened. And the electronic price tag only sends the broadcast after awakening and enters a dormant state after sending the broadcast, so that the power consumption of the electronic price tag can be effectively reduced. Meanwhile, in the networking process, the time zone setting information is sent to the electronic price tags through the gateway equipment, the setting of the working time zone of each electronic price tag can be realized, the awakened time zone of each electronic price tag can be controlled, the situation of mutual collision and interference can be avoided when the updated data is transmitted subsequently, the control flow of issuing the updated information by the gateway equipment can be simplified, and the data transmission efficiency is improved.
Further, when the networking sending module sends the broadcast networking information, the networking information is broadcast on the plurality of channels in sequence according to a third preset time interval. The networking information is broadcasted on a plurality of channels, so that network collision interference can be reduced, and the fact that the gateway equipment can receive the broadcasted networking information on a certain channel is ensured.
Further, the gateway device further comprises a tag judgment module, the tag judgment module is used for verifying whether the electronic price tag is not in other networks according to the networking information, and the time zone setting module sends the time zone synchronization information after the tag judgment module passes the verification. Repeated networking can be avoided through the label judgment module.
Further, the gateway device further comprises a networking mode setting module, the networking mode comprises a batch mode and a single device mode, the gateway device further stores an electronic price tag list to be added, and the tag judging module is further used for verifying whether the electronic price tag is in the electronic price tag list to be added or not in the single device mode. The batch mode is suitable for adding a plurality of electronic price tag devices at one time when networking is carried out for the first time, the single device mode is suitable for adding the electronic price tags after networking is finished, and only the appointed devices are allowed to be added into the network by verifying whether the electronic price tags are in the list of the electronic price tags to be added.
Further, the gateway device further comprises an update broadcasting module, wherein the update broadcasting module is used for sending out broadcasting contents containing the ID of the electronic price tag needing to be updated; the data updating module comprises an updating judgment module and a content updating module, the updating judgment module is used for receiving the broadcast content sent by the updating broadcast module and judging whether the updating module needs to update according to the ID, and the content updating module is used for initiating connection to the gateway equipment when the updating judgment module detects that the updating module needs to update, acquiring the updating content and updating the display content according to the updating content. The electronic price tag judges whether the updating is needed or not through the broadcasting content and acquires the updating content through the gateway equipment when the updating is detected to be needed.
Further, the update broadcasting module transmits the broadcasting contents in a plurality of channels at the same time. Ensuring that the electronic price tag is able to receive the broadcast content.
Further, the updating broadcast module sends broadcast contents in a plurality of channels in sequence according to a fourth preset time interval, the updating judgment module listens in a plurality of channels in sequence according to a fifth preset time interval, and the listening duration of each channel by the updating judgment module is greater than or equal to the total duration of the updating broadcast module sending the broadcast contents in the plurality of channels. It is ensured that the electronic price tag and the gateway device can broadcast and listen on the same channel at the same time.
Further, the electronic price tag comprises a wake-up broadcasting module, the wake-up broadcasting module is used for broadcasting ready information after the electronic price tag is woken up, the gateway device comprises a tag update judgment module and an update transmission module, the tag update judgment module is used for judging whether the electronic price tag needs to be updated according to the ready information, and the update transmission module is used for establishing connection with the electronic price tag after detecting that the electronic price tag needs to be updated and sending update content to the electronic price tag; the time zone setting module is also used for synchronizing the time zone with the electronic price tag and distributing the time for the next awakening when the electronic price tag is detected not to be updated. The electronic price tag actively sends broadcast information after awakening, and the gateway equipment uniformly judges whether updated content exists or not, so that the management is facilitated.
Further, the content updating module comprises a template storage module and a content generating module, wherein a plurality of display templates are stored in the template storage module, each display template comprises a template ID, a frame bitmap and a variable parameter, the updating content comprises a template ID and a variable parameter, and the content generating module is used for selecting a corresponding display template according to the template ID in the updating content and generating display content according to the frame bitmap and the variable parameter. Through the template storage module, a plurality of display templates can be preset, and then only template ID and variable parameters need to be included in the updated content, and bitmap information corresponding to the display content does not need to be directly transmitted like the prior art, so that the transmitted data volume can be effectively reduced.
Drawings
FIG. 1 is a logic diagram of an embodiment of a low energy electronic price tag system of the present invention;
FIG. 2 is a graph of load as a function of throughput for Pure Aloha networks.
Detailed Description
The following is further detailed by way of specific embodiments:
example one
As shown in fig. 1, the low-power consumption electronic price tag system of the present embodiment includes an electronic price tag and a gateway device.
The electronic price tag comprises a networking sending module, a time zone synchronization module, a data updating module and a dormancy module, wherein the networking sending module is used for waking up the electronic price tag at random time in each time zone and broadcasting networking information by taking a first preset time as one time zone; the time zone synchronization module is used for receiving time zone synchronization information sent by the gateway equipment, synchronously setting the time zone of the gateway equipment according to the time zone synchronization information and calculating the time of next awakening, the dormancy module is used for enabling the electronic price tag to be in a dormancy mode, and the data updating module is used for acquiring updating content from the gateway equipment and updating the display content of the electronic price tag.
In this embodiment, when the networking sending module sends the broadcast networking information, the networking sending module broadcasts the networking information on the multiple channels in sequence according to a third preset time interval, specifically, in this embodiment, the networking sending module uses 15.36 seconds as a time interval, and broadcasts the networking information on three channels, namely a high channel, a medium channel and a low channel, at a time interval of 1.25 milliseconds at a random time in each time interval.
The gateway equipment comprises an updating acquisition module, a monitoring module, a label judgment module, a networking mode setting module, an updating broadcast module and a time zone setting module.
Specifically, the update acquisition module is configured to acquire update content of the electronic price tag from the server, and the networking mode setting module is configured to set a networking mode of the gateway device. The monitoring module is used for monitoring and receiving networking information sent by the electronic price tag when the gateway device is in a batch mode or a single device mode, the tag judging module is used for verifying whether the electronic price tag is not in other networks or not according to the networking information, the time zone setting module is used for sending time zone synchronization information to the electronic price tag after the networking information sent by the electronic price tag is received and verified by the tag judging module, and in the embodiment, the gateway device takes 15 milliseconds as a time zone.
The gateway device further stores an electronic price tag list to be added, and in the single device mode, the tag judging module is further used for continuously verifying whether the electronic price tag is in the electronic price tag list to be added after verifying whether the electronic price tag is not in other networks, and the time zone setting module sends time zone synchronization information after the tag judging module verifies that the electronic price tag is passed.
The updating broadcast module is used for sending out broadcast content containing the ID of the electronic price tag needing to update the content; the data updating module comprises an updating judgment module and a content updating module, the updating judgment module is used for receiving the broadcast content sent by the updating broadcast module and judging whether the updating module needs to update according to the ID, and the content updating module is used for initiating connection to the gateway equipment when the updating judgment module detects that the updating module needs to update, acquiring the updating content and updating the display content according to the updating content.
Specifically, in the embodiment, the update broadcasting module sends broadcasts on three channels, namely a high channel, a medium channel and a low channel according to a time interval of 1.25 milliseconds, and the update judging module listens on the three channels in sequence according to a time period of 3.75 milliseconds.
The content updating module comprises a template storage module and a content generating module, wherein a plurality of display templates are stored in the template storage module, each display template comprises a template ID, a frame bitmap and variable parameters, the updating content comprises the template ID and the variable parameters, the content generating module is used for selecting the corresponding display template according to the template ID in the updating content and generating the display content according to the frame bitmap and the variable parameters, and the variable parameters comprise variable information such as commodity names, descriptions, prices, discounts and the like.
In order to more clearly disclose the technical solution of the present embodiment, the present embodiment further discloses a communication method of an electronic price tag based on the low power consumption electronic price tag system, the method includes a networking step and a data updating step, the networking step includes an electronic price tag execution step and a gateway device execution step, the electronic price tag execution step includes:
s110: the electronic price tag takes a first preset time as a time zone, wakes up the electronic price tag at random time in each time zone and sends broadcast networking information; in the embodiment, the electronic price tag sends networking requests every 1.25 milliseconds on a high channel, a medium channel and a low channel respectively.
S120: the electronic price tag intercepts the gateway, if the time zone synchronization information sent by the gateway equipment is received, S130 is executed, otherwise, S140 is executed;
s130: the electronic price tag stops broadcasting, sets the own time zone synchronously according to the time zone synchronous information, calculates the time of next awakening and then enters a dormant state;
s140: the electronic price tag enters a dormant state and executes S110 in the next time zone;
the gateway device performs steps including:
s210: the gateway equipment monitors and receives networking information sent by the electronic price tag;
s230: and the gateway equipment judges whether the electronic price tag is not in other networks or not according to the networking information, if so, S240 is executed, and if not, S210 is executed. Whether the electronic price tag is in other networks can be verified through the S230, and therefore repeated networking is avoided;
s240: the gateway device sends time zone synchronization information to the electronic price tag.
The time zone refers to a time interval with a fixed duration, and in the application, the time is divided into a plurality of time zones which are used as a measuring unit of the time.
And S110. The networking information is broadcasted on a plurality of channels, so that network collision interference can be reduced, and the fact that the gateway equipment can receive the broadcasted networking information on a certain channel is ensured.
The gateway equipment is to enter a networking mode before monitoring and receiving networking information, the networking mode comprises a batch mode and a single equipment mode, and the gateway execution step further comprises the following steps during the single equipment mode:
s200: inputting a list of new electronic price tags needing to be added into the network to the gateway;
further included between S210 and S240 is:
s220: the gateway device judges whether the electronic price tag is in the list of the new electronic price tag, if so, the subsequent steps are continuously executed, and if not, S210 is executed. The batch mode can facilitate that a large number of electronic price tags are added into the network of the gateway device when networking is carried out for the first time, the single device mode can be used for carrying out one-by-one addition after the network is built, whether the electronic price tags are in the list or not is verified through S220, and only the established device is allowed to be added into the network. The two modes of the batch mode and the single-equipment mode can meet the networking requirements under different situations.
The data updating step comprises the following steps:
s400: the gateway equipment acquires the updated content of the electronic price tag from the server;
s500: and establishing network connection between the electronic price tag and the gateway equipment, acquiring the updating content, and updating the display content of the electronic price tag according to the updating content. And the electronic price tag can acquire data updating content through the gateway equipment, and update the display content according to the updating content.
S500 comprises:
s510: the gateway equipment sends out broadcast content containing ID of the electronic price tag needing to update the content;
s520: monitoring and receiving the broadcast content by the electronic price tag, judging whether the electronic price tag needs to be updated according to the ID, if so, executing S530, and if not, entering a dormant state by the electronic price tag;
s530: and the electronic price tag initiates connection to the gateway, acquires the updating content and updates the display content according to the updating content.
The gateway equipment sequentially sends the broadcast contents on the channels according to a fourth preset time interval, the electronic price tags are sequentially intercepted on the channels according to a fifth preset time interval, and the intercepting time of the electronic price tags on each channel is longer than or equal to the total time of the gateway equipment for sending the broadcast contents on the channels. The gateway equipment takes the second preset time as a time zone, the first preset time is X times of the second preset time, and X is more than or equal to the number of the electronic price tags needing networking. In this embodiment, for example, the gateway device manages 1024 electronic price tags, the time interval of the electronic price tags broadcasting the networking information is 15.36 seconds, and the gateway device takes 15 milliseconds as a time zone.
In the specific implementation of this embodiment, the data format and length of the networking information and the time zone synchronization information are fixed, as shown in table 1:
TABLE 1
In order to verify the communication effect in the technical solution of this embodiment in the bulk adding mode, in this embodiment, a Pure ALOHA model is used to model the communication process between the gateway device and the electronic price tag, and fig. 2 shows a corresponding value of a functional relationship between the load and the throughput of the Pure ALOHA network, where S is G e-2G. Assuming that there are 1000 electronic price tags waiting for networking, that is, G is 1000, the frequency of sending broadcast networking information by each node is 15.36 seconds, the duration of a data packet of each networking information, that is, ADV _ IND, is 376 microseconds, then waiting for 150 microseconds, and finally 376 microseconds is needed for the gateway device to send time zone synchronization information. During this period, i.e. 902 μ sec, an average of 1000 × 902/(15 × 1000000) 0.06 packets is sent. Because G is much smaller than the ideal network load (G ═ 0.5), the 1000 electronic price tags can be quickly allocated to the corresponding time zones, that is, the network collision probability can quickly converge to 0, and networking is realized.
Example two
The difference between the embodiment and the first embodiment is that the electronic price tag includes a wake-up broadcasting module, the wake-up broadcasting module is used for broadcasting ready information after the electronic price tag is woken up, the gateway device includes a tag update judgment module and an update transmission module, the tag update judgment module is used for judging whether the electronic price tag needs to be updated according to the ready information, and the update transmission module is used for establishing connection with the electronic price tag after detecting that the electronic price tag needs to be updated and sending update content to the electronic price tag; the time zone setting module is also used for synchronizing the time zone with the electronic price tag and distributing the time for the next awakening when detecting that the electronic price tag does not need to be updated. Correspondingly, S500 of the communication method of the corresponding electronic price tag includes:
s510: sending broadcast information after the electronic price tag is awakened, and informing gateway equipment;
s520: the gateway equipment judges whether the electronic price tag needs to be updated or not after receiving the broadcast information of the electronic price tag, if so, S530 is executed, and if not, S540 is executed;
s530: the gateway equipment is connected with the electronic price tag, updating content is sent to the electronic price tag, and the electronic price tag updates display content according to the updating content;
s540: the gateway equipment synchronizes time zones with the electronic price tags and distributes the time for the next awakening;
s550: the electronic price tag enters a dormant state. The electronic price tag actively sends broadcast information after awakening, and the gateway equipment uniformly judges whether updated content exists or not, so that the management is facilitated.
EXAMPLE III
The difference between this embodiment and the first embodiment is that in this embodiment, a plurality of data transceiver modules are arranged on the gateway device, and the update broadcast module sends broadcast content on a plurality of channels at the same time, so that broadcast is performed on a plurality of channels at the same time, and the time required by the electronic price tag to receive broadcast can be further reduced, and power consumption is reduced.
The foregoing are merely exemplary embodiments of the present invention, and no attempt is made to show structural details of the invention in more detail than is necessary for the fundamental understanding of the art, the description taken with the drawings making apparent to those skilled in the art how the several forms of the invention may be embodied in practice with the teachings of the invention. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (5)
1. Low energy consumption electronic price tag system, including electronic price tag and gateway equipment, its characterized in that: the gateway equipment comprises an update acquisition module, a monitoring module and a time zone setting module, wherein the update acquisition module is used for acquiring the update content of the electronic price tag from the server, the monitoring module is used for monitoring and receiving networking information sent by the electronic price tag, and the time zone setting module is used for sending time zone synchronization information to the electronic price tag after receiving the networking information sent by the electronic price tag;
the electronic price tag comprises a networking sending module, a time zone synchronization module, a data updating module and a dormancy module, wherein the networking sending module is used for waking up the electronic price tag and broadcasting networking information at random time in each time zone by taking a first preset time as one time zone; the time zone synchronization module is used for receiving time zone synchronization information sent by the gateway equipment, synchronously setting the time zone of the gateway equipment according to the time zone synchronization information and calculating the time of next awakening, the dormancy module is used for enabling the electronic price tag to be in a dormancy mode, and the data updating module is used for acquiring updating content from the gateway equipment and updating the display content of the electronic price tag;
when the networking sending module sends the broadcasting networking information, the networking information is sequentially broadcasted on a plurality of channels according to a third preset time interval;
the gateway equipment also comprises an updating broadcast module, wherein the updating broadcast module is used for sending broadcast content containing the ID of the electronic price tag needing to update the content; the data updating module comprises an updating judgment module and a content updating module, the updating judgment module is used for receiving the broadcast content sent by the updating broadcast module and judging whether the updating module needs to update or not according to the ID, and the content updating module is used for initiating connection to the gateway equipment when the updating judgment module detects that the updating module needs to update, acquiring the updating content and updating the display content according to the updating content;
the electronic price tag comprises a wake-up broadcasting module, the wake-up broadcasting module is used for broadcasting ready information after the electronic price tag is woken up, the gateway device comprises a tag update judging module and an update transmission module, the tag update judging module is used for judging whether the electronic price tag needs to be updated according to the ready information, and the update transmission module is used for establishing connection with the electronic price tag after detecting that the electronic price tag needs to be updated and sending update content to the electronic price tag; the time zone setting module is also used for synchronizing a time zone with the electronic price tag and distributing the time for the next awakening when the electronic price tag is detected not to be updated;
the content updating module comprises a template storage module and a content generating module, wherein a plurality of display templates are stored in the template storage module, each display template comprises a template ID, a frame bitmap and a variable parameter, the updating content comprises a template ID and a variable parameter, and the content generating module is used for selecting a corresponding display template according to the template ID in the updating content and generating display content according to the frame bitmap and the variable parameter.
2. The low energy consumption electronic price tag system of claim 1, wherein: the gateway equipment further comprises a label judging module, the label judging module is used for verifying whether the electronic price label is not in other networks according to the networking information, and the time zone setting module sends time zone synchronization information after the label judging module verifies that the electronic price label is not in other networks.
3. The low energy consumption electronic price tag system of claim 2, wherein: the gateway equipment further comprises a networking mode setting module, the networking mode comprises a batch mode and a single equipment mode, the gateway equipment further stores an electronic price tag list to be added, and the tag judging module is further used for verifying whether the electronic price tag is in the electronic price tag list to be added or not in the single equipment mode.
4. The low energy consumption electronic price tag system of claim 1, wherein: the update broadcasting module transmits the broadcasting contents at a plurality of channels at the same time.
5. The low energy consumption electronic price tag system of claim 4, wherein: the updating and broadcasting module sends the broadcasting contents in the plurality of channels in sequence according to a fourth preset time interval, the updating and judging module listens in the plurality of channels in sequence according to a fifth preset time interval, and the listening duration of the updating and judging module in each channel is more than or equal to the total duration of the updating and broadcasting module sending the broadcasting contents in the plurality of channels.
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| CN111954194B (en) * | 2020-08-12 | 2023-12-05 | 深圳市蓝信物联科技有限公司 | Wireless intelligent tag refreshing control method and device based on Internet of things |
| CN112104985B (en) * | 2020-09-17 | 2022-09-06 | 努比亚技术有限公司 | Electronic price tag reservation image brushing method, equipment and computer readable storage medium |
| CN112423251B (en) * | 2020-11-18 | 2023-03-28 | 浙江安腾信息技术有限公司 | Electronic price tag differential mapping method, equipment and computer-readable storage medium |
| CN112601268A (en) * | 2020-11-26 | 2021-04-02 | 努比亚技术有限公司 | Electronic price tag sleep period switching method, electronic price tag device and electronic price tag |
| CN112866499B (en) * | 2020-12-31 | 2023-07-21 | 努比亚技术有限公司 | Electronic price tag differential push graph method, electronic price tag differential push graph equipment and computer storage medium |
| CN114363832B (en) * | 2021-12-16 | 2023-05-23 | 江苏华锐频科技有限公司 | Information sending method, radio frequency tag, radio frequency system and storage medium |
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