WO2020238423A1 - 一种电子货架标签的数据通信方法、系统及相关组件 - Google Patents

一种电子货架标签的数据通信方法、系统及相关组件 Download PDF

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Publication number
WO2020238423A1
WO2020238423A1 PCT/CN2020/083662 CN2020083662W WO2020238423A1 WO 2020238423 A1 WO2020238423 A1 WO 2020238423A1 CN 2020083662 W CN2020083662 W CN 2020083662W WO 2020238423 A1 WO2020238423 A1 WO 2020238423A1
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WIPO (PCT)
Prior art keywords
electronic shelf
shelf label
communication
master
working mode
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PCT/CN2020/083662
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English (en)
French (fr)
Inventor
肖仁杰
庄严
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深圳云里物里科技股份有限公司
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Publication of WO2020238423A1 publication Critical patent/WO2020238423A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/35—Services specially adapted for particular environments, situations or purposes for the management of goods or merchandise
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/40—Connection management for selective distribution or broadcast
    • 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

Definitions

  • the present invention relates to the technical field of the Internet of Things, in particular to a data communication method and system of an electronic shelf label, a computer readable storage medium, a communication master terminal and an electronic shelf label.
  • ESL Electronic Shelf Label
  • ESL Electronic Shelf Label
  • Electronic shelf labels have the following working states: sleep, broadcast, connection establishment and data communication.
  • the main terminal has the following working states: monitoring the electronic shelf label broadcast, waking up the electronic shelf label, connecting the electronic shelf label and data communication.
  • electronic shelf labels are generally powered by batteries, they often need to work for several years, so the requirements for power consumption are relatively high, and there are generally a large number of them, so the master is required to respond quickly and quickly complete communication for each electronic shelf label During the process, relatively high requirements are put forward for the design of electronic shelf labels and master-end equipment.
  • Several working states can be quickly switched to quickly complete each step of the operation.
  • a master-end device can correspond to multiple electronic shelf labels.
  • the master-end device needs to constantly switch working states, waking up each label one by one to complete the communication operation, so the response speed of the master-end device and the switching speed of the working state will become the bottleneck of the entire system .
  • the master device and the electronic shelf label have been working in Bluetooth mode. Due to the limitation of the Bluetooth Low Energy (BLE) protocol stack, the communication process between the master device and the electronic shelf label takes a long time. , Increase the power consumption of electronic shelf labels.
  • BLE Bluetooth Low Energy
  • the purpose of this application is to provide a data communication method and system for electronic shelf labels, a computer-readable storage medium, a communication master and an electronic shelf label, which can improve the data communication between the master device and the electronic shelf label Efficiency, reduce the power consumption of electronic shelf labels.
  • the present application provides a data communication method for electronic shelf labels, which is applied to a communication master, and the data communication method includes:
  • the establishing a communication connection with the target electronic shelf label according to the broadcast includes:
  • the communication master terminal includes a first master terminal device, a second master terminal device, and a third master terminal device;
  • the first master device is used to, when receiving the data transmission instruction sent by the server, in the wireless working mode, call the wireless transceiver device to send wake-up data packets to all electronic shelf labels, so as to wake up the electronic shelf labels;
  • the second master device is used to receive the broadcast sent by the electronic shelf label in the Bluetooth working mode, and establish a communication connection with the target electronic shelf label according to the broadcast;
  • the third master device is used to Perform data communication with the target electronic shelf label in the Bluetooth working mode.
  • the communication master includes a fourth master device and a fifth master device;
  • the fourth master device is used to, when receiving the data transmission instruction sent by the server, in the wireless working mode, call the wireless transceiver device to send wake-up data packets to all electronic shelf labels, so as to wake up the electronic shelf labels;
  • the fifth master device is used to receive the broadcast sent by the electronic shelf label in the Bluetooth working mode, and establish a communication connection with the target electronic shelf label according to the broadcast;
  • the second master device is also used to Perform data communication with the target electronic shelf label in the Bluetooth working mode.
  • This application also provides a data communication system for electronic shelf labels, which is applied to a communication master, and the data communication system includes:
  • the wake-up module is used to call the wireless transceiver device in the wireless working mode to send wake-up data packets to all electronic shelf labels when receiving the data transmission instruction sent by the server, so as to wake up the electronic shelf labels;
  • the broadcast scanning module is used to receive the broadcast sent by the electronic shelf label in the Bluetooth working mode
  • the master communication module is used to establish a communication connection with the target electronic shelf label according to the broadcast; and is also used to perform data communication with the target electronic shelf label in the Bluetooth working mode.
  • the present application also provides a data communication method for electronic shelf labels, which is applied to electronic shelf labels, and the data communication method includes:
  • the wireless transceiver device When it is detected that the tag status is in the dormant state, the wireless transceiver device is called in the wireless working mode to receive the wake-up data packet sent by the communication master;
  • the present application also provides a data communication system for electronic shelf labels, which is applied to electronic shelf labels, and the data communication system includes:
  • the wake-up detection module is used to call the wireless transceiver in the wireless working mode to receive the wake-up data packet sent by the communication master when the tag status is detected as the sleep state;
  • the judgment module is used to judge whether the label state is switched from the sleep state to the wake state
  • connection module is used to send a broadcast to the communication master in the Bluetooth working mode when the tag state is switched from the sleep state to the awake state, so as to establish a communication connection with the communication master;
  • the tag communication module is used for data communication with the communication master in the Bluetooth working mode.
  • This application also provides a computer-readable storage medium on which a computer program is stored.
  • the computer program When the computer program is executed, the execution of the data communication method applied to the communication master and/or the electronic shelf label applied to the electronic shelf label is implemented A step of.
  • the present application also provides a communication master terminal, including a wireless data transceiver, a memory, and a processor.
  • the wireless data transceiver is used for data communication with the electronic shelf label.
  • the memory stores a computer program, and the processor When the computer program in the memory is called, the steps executed by the data communication method of the above electronic shelf label are realized.
  • the present application also provides an electronic shelf label, including a wireless data transceiver, a memory, and a processor.
  • the wireless data transceiver is used for data communication with the electronic shelf label.
  • the memory stores a computer program, and the processor When the computer program in the memory is called, the steps executed by the data communication method of the above electronic shelf label are realized.
  • This application provides a data communication method for electronic shelf labels, which is applied to the communication master, including: when receiving a data transmission instruction sent by a server, in a wireless working mode, calling a wireless transceiver device to send wake-up data to all electronic shelf labels Package to wake up the electronic shelf label; receive the broadcast sent by the electronic shelf label in the Bluetooth working mode, and establish a communication connection with the target electronic shelf label according to the broadcast; and communicate with the target electronic shelf label in the Bluetooth working mode
  • the target electronic shelf label performs data communication.
  • the working mode of the communication master is set to the wireless working mode, and in the wireless working mode, the wireless transceiver device is directly called to send the wake-up data packet to all electronic shelf labels. Since in the wireless working mode, the wireless transceiving device is directly called to send the wake-up data packet without being restricted by the Bluetooth low energy protocol stack, it is possible to shorten the electronic shelf label scanning cycle and significantly reduce the power consumption of the electronic shelf label.
  • the Bluetooth mode is convenient for complex data communication.
  • this application sets the working mode of the communication master to the Bluetooth working mode, and receives broadcasts, establishes a connection and performs data in the Bluetooth working mode Communication.
  • the present application can improve the data communication efficiency between the host device and the electronic shelf label, and reduce the power consumption of the electronic shelf label.
  • This application also provides a data communication system for an electronic shelf label, a computer-readable storage medium, a communication master, and an electronic shelf label, which have the above-mentioned beneficial effects and will not be repeated here.
  • FIG. 1 is a flowchart of a data communication method for electronic shelf labels provided by an embodiment of the application
  • FIG. 2 is a flowchart of another data communication method for electronic shelf labels provided by an embodiment of the application.
  • FIG. 3 is a schematic structural diagram of an electronic shelf label data communication system provided by an embodiment of the application.
  • FIG. 4 is a schematic structural diagram of an electronic shelf label data communication system provided by an embodiment of the application.
  • FIG. 1 is a flowchart of a data communication method for an electronic shelf label according to an embodiment of the application.
  • this embodiment may be applied to the communication master terminal of the electronic shelf label system, and the communication master terminal may be a device provided with a wireless communication module to exchange information with the electronic shelf label based on the wireless communication module.
  • the wireless communication module may be a Bluetooth module, a Wi-Fi module, or the like.
  • the electronic shelf label system may include a server, a communication master connected to the server through a gateway device, and an electronic shelf label.
  • the communication master applied in this embodiment can be a general term for multiple master devices, that is, there may be multiple master devices in the electronic shelf label system, and each master device can be associated with multiple electronic shelf labels. To communicate.
  • the server sends a data transmission instruction to the communication master through the gateway device.
  • the electronic shelf label is usually in a dormant state when it does not interact with the communication master. Therefore, the communication master needs to wake up the dormant electronic shelf label before it needs to communicate with the electronic shelf label.
  • the working mode of the electronic shelf label is the wireless working mode, that is, the wireless data transceiver is directly called to scan and wake up the data packet; further, in this embodiment
  • the specific method for the communication master to send the wake-up data packet to the electronic shelf label is: in the wireless working mode, directly call the wireless data transceiver to send the wake-up data packet.
  • the communication master sending wake-up data packets in Bluetooth mode needs to be restricted by the Bluetooth Low Energy (BLE) protocol stack, that is, the sending cycle of the communication master and the scanning cycle of the electronic shelf label are both subject to
  • BLE Bluetooth Low Energy
  • the limitations of the Bluetooth low energy protocol stack result in low wake-up efficiency of the electronic shelf label and increase the power consumption of the electronic shelf label. Shortening the scanning cycle is equivalent to reducing the time for the electronic shelf label to perform the scanning operation, and therefore can reduce power consumption.
  • the communication master sets the working mode to the wireless working mode, and can directly call the underlying wireless transceiver device to send the wake-up data packet, which is not restricted by the Bluetooth low energy protocol stack.
  • the electronic shelf label receives the wake-up data packet, it determines whether its own identification code is in the wake-up data packet. If so, it can be switched from the sleep state to Wake up state. After the electronic shelf label is awakened, a broadcast can be sent to inform the communication master that it has been activated.
  • S102 Receive a broadcast sent by the electronic shelf label in the Bluetooth working mode, and establish a communication connection with the target electronic shelf label according to the broadcast;
  • the communication master terminal receives the broadcast sent by the electronic shelf label in the Bluetooth working mode after waking up the electronic shelf label to determine the electronic shelf label that is awakened. Since the wireless working mode is not convenient for complex data communication, and the Bluetooth working mode can quickly establish a communication connection and data communication, the communication master of this embodiment switches the working mode to the Bluetooth working mode after waking up the electronic shelf label.
  • the step of establishing a communication connection with the target electronic shelf label according to the broadcast in S102 may include the following operations:
  • Step 1 Send the broadcast to the server, so that the server determines the target electronic shelf label according to the broadcast;
  • Step 2 Receive the tag ID of the target electronic shelf label sent by the server, and establish a communication connection with the target electronic shelf label according to the tag ID.
  • the broadcast of the electronic shelf label can be forwarded to the server, and the server determines the data that needs to be sent to each wake-up electronic shelf label or the data that needs to be sent by the electronic shelf label. Data in order to complete data communication.
  • the working mode of the communication master when the communication master needs to send a wake-up data packet, the working mode of the communication master is set to the wireless working mode, and the wireless transceiver device is directly called to send the wake-up data packet to all electronic shelf labels in the wireless working mode. Since in the wireless working mode, directly calling the wireless transceiver to send the wake-up data packet does not need to be restricted by the Bluetooth low energy protocol stack, the scanning period of the electronic shelf label can be shortened, and the power consumption of the electronic shelf label can be significantly reduced.
  • the Bluetooth mode is convenient for complex data communication. Therefore, after the wake-up data packet is sent to the electronic shelf label in this embodiment, the working mode of the communication master is set to the Bluetooth working mode in this embodiment. In the Bluetooth working mode, it receives broadcasts, establishes connections, and For data communication. This embodiment can improve the data communication efficiency between the master device and the electronic shelf label, and reduce the power consumption of the electronic shelf label.
  • the master-end device may include multiple master-end devices, and each master-end device may have a corresponding division of labor.
  • the specific master-end communication device includes the following three types of devices: 2. The second master device and the third master device; wherein the first master device is used to call the wireless transceiver device to send to all electronic shelf labels in the wireless working mode when receiving the data transmission instruction sent by the server Wake up a data packet to wake up the electronic shelf label; the second master device is used to receive the broadcast sent by the electronic shelf label in the Bluetooth working mode, and establish a communication connection with the target electronic shelf label according to the broadcast ; The third master device is used to perform data communication with the target electronic shelf label in the Bluetooth working mode.
  • Master A works in wireless mode and is responsible for the wake-up operation of electronic shelf labels.
  • Master B works in Bluetooth mode and is responsible for scanning electronic shelf labels.
  • the master terminal C works in Bluetooth mode and is responsible for establishing a connection with the electronic shelf label and completing data communication.
  • the working mode status of each master is determined by the control command from the server.
  • Each electronic shelf label has two working modes: wireless and Bluetooth, and three states of sleep, broadcast, connection and communication are determined by its own working state machine. Generally in a dormant state, running at low power consumption, the wireless wake-up signal is scanned periodically, such as 10 milliseconds every 5 seconds.
  • the master device responsible for waking up the electronic shelf label in the wireless state needs to ensure that the electronic shelf label is scanned during the period of the electronic shelf label, for example, within 5 seconds, the wake-up signal is continuously sent periodically, and the cycle is not greater than the electronic shelf label scanning. time.
  • the wake-up signal There are two types of wake-up signal designs. One is to include specified specific content, such as device ID or device MAC, at a designated location in the wireless data packet, and the other is that all or part of the wireless data packet complies with specific rules. As long as one of the wake-up signals meets the requirements, the electronic shelf label is awakened, and then enters the Bluetooth mode, starts to enter the broadcast state, and waits for the connection of the master device.
  • the above supplement is equivalent to dividing the data communication process between the communication master and the electronic shelf label into three stages of wake-up, connection and communication, and each type of master device can correspond to one stage.
  • the first master device, the second master device, and the third master device work alternately, which improves the efficiency of data communication.
  • the main communication terminal may include multiple main-end devices, and each main-end device may have its corresponding division of labor.
  • the specific communication main-end includes the following two types of devices: Fourth main-end device And a fifth master device; wherein, the fourth master device is used to call the wireless transceiver in the wireless working mode to send wake-up data packets to all electronic shelf labels when receiving a data transmission instruction sent by the server, so as to wake up The electronic shelf label; the fifth master device is used to receive the broadcast sent by the electronic shelf label in the Bluetooth working mode, and establish a communication connection with the target electronic shelf label according to the broadcast; the fifth master The end device is also used for data communication with the target electronic shelf label in the Bluetooth working mode.
  • each master-end device in the communication master can also be flexibly adjusted according to actual application conditions, which is not specifically limited here.
  • the working mode and working state of each master-end device can be changed at any time by a control command from the server or gateway, and of course, it can also be in a specific mode or a specific working state all the time.
  • FIG. 2 is a flowchart of another data communication method for an electronic shelf label according to an embodiment of the application.
  • S202 Determine whether the tag state is switched from the sleep state to the awake state; if so, go to S203;
  • S203 Send a broadcast to the communication master in the Bluetooth working mode, so as to establish a communication connection with the communication master;
  • S204 Perform data communication with the communication master in the Bluetooth working mode.
  • the foregoing embodiment is a data communication mode of an electronic shelf label in the embodiment corresponding to FIG. 1, and there may be multiple electronic shelf labels described in this embodiment in the electronic shelf label system.
  • the electronic shelf label When the electronic shelf label is in the dormant state, the electronic shelf label directly calls the wireless transceiver to receive the wake-up data. After receiving the wake-up data packet, the electronic shelf label can determine whether the wake-up data packet includes its own identification code. Switch the label state from sleep state to wake state. Since the electronic shelf label of this embodiment calls the wireless transceiver device to receive the wake-up data packet in the wireless working mode, the cycle of scanning the wake-up data packet can be shortened, and is not limited by the Bluetooth low energy protocol stack.
  • the tag state when the tag state is switched to the awake state, it sends a broadcast, establishes a connection and performs data communication in the Bluetooth working mode, and uses the characteristics of Bluetooth transmission to improve the efficiency of data transmission.
  • This embodiment can improve the data communication efficiency between the master device and the electronic shelf label, and reduce the power consumption of the electronic shelf label.
  • the master terminal device and the electronic shelf label are designed with two working modes respectively, namely the wireless working mode and the Bluetooth working mode.
  • the wireless working mode can directly operate the 2.4GHz transceiver module for data transmission and reception, while the Bluetooth working mode is to indirectly operate the 2.4GHz transceiver module for data transmission and reception through the BLE (Bluetooth Low Energy) protocol stack module.
  • BLE Bluetooth Low Energy
  • the two working modes can be switched freely as required.
  • the master device completes the operation of waking up the electronic shelf label in the wireless working mode.
  • In the Bluetooth working mode complete the broadcast scanning and processing of the electronic shelf label, establish a connection with the electronic shelf label, and perform data communication.
  • the electronic shelf label completes the wake-up monitoring, detects the wake-up signal for itself, activates itself, and switches the working mode to the Bluetooth mode.
  • the Bluetooth working mode broadcast, connection processing and data communication are completed.
  • Strategy 1 At least three masters are divided into tasks, one is responsible for electronic shelf label wake-up in wireless working mode, one is responsible for broadcast scanning processing in Bluetooth working mode, and the other is responsible for data communication in Bluetooth working mode ;
  • Strategy 3 Start working partially or completely in the wireless working mode and be responsible for waking up all the electronic shelf labels, and then switch the working mode to the Bluetooth working mode to complete the electronic shelf label broadcast scanning processing and establish connection and data communication;
  • both the electronic shelf label and the master terminal device are designed with two working modes of wireless and Bluetooth, and multiple master terminals are used at the same time corresponding to the same batch of electronic shelf labels.
  • the cycle of scanning the wake-up signal can be shortened to 10 milliseconds or even shorter, which can significantly reduce the power consumption of the electronic shelf label.
  • the master device can wake up all electronic shelf labels in the shortest time, respond to the broadcast of electronic shelf labels in the shortest time, and complete the data communication operation with all electronic shelf labels in the shortest time, and the electronic shelf labels can complete data from wake up
  • the communication time is the shortest, thereby minimizing power consumption.
  • the communication master can achieve rapid response and shorten the overall communication Processing time to achieve the best overall system performance; can shorten the scanning cycle of electronic shelf labels, significantly reduce power consumption, and extend the battery life of electronic shelf labels.
  • FIG. 3 is a schematic structural diagram of an electronic shelf label data communication system provided by an embodiment of the application.
  • the system is applied to the communication master and may include:
  • the wake-up module 110 is configured to, when receiving a data transmission instruction sent by the server, in the wireless working mode, call the wireless transceiver device to send wake-up data packets to all electronic shelf labels, so as to wake up the electronic shelf labels;
  • the broadcast scanning module 120 is configured to receive the broadcast sent by the electronic shelf label in the Bluetooth working mode
  • the master communication module 130 is used to establish a communication connection with the target electronic shelf label according to the broadcast, and is also used to perform data communication with the target electronic shelf label in the Bluetooth working mode.
  • the working mode of the communication master is set to the wireless working mode, and the wireless transceiver device is directly called to send the wake-up data packet to all electronic shelf labels in the wireless working mode. Since in the wireless working mode, directly calling the wireless transceiver to send the wake-up data packet does not need to be restricted by the Bluetooth low energy protocol stack, the scanning period of the electronic shelf label can be shortened, and the power consumption of the electronic shelf label can be significantly reduced.
  • the Bluetooth working mode is convenient for complex data communication.
  • the working mode of the communication master is set to the Bluetooth working mode in this embodiment, and the broadcast is received and the connection is established in the Bluetooth working mode. And for data communication.
  • This embodiment can improve the data communication efficiency between the master device and the electronic shelf label, and reduce the power consumption of the electronic shelf label.
  • the broadcast scanning module 120 includes:
  • a broadcast receiving unit configured to receive the broadcast sent by the electronic shelf label in the Bluetooth working mode
  • a broadcast sending unit configured to send the broadcast to the server, so that the server can determine the target electronic shelf label according to the broadcast
  • the connection unit is configured to receive the tag ID of the target electronic shelf label sent by the server, and establish a communication connection with the target electronic shelf label according to the tag ID.
  • the communication master terminal includes a first master terminal device, a second master terminal device, and a third master terminal device;
  • the first master device is used to, when receiving a data transmission instruction sent by the server, in a wireless working mode, call the wireless transceiver device to send wake-up data packets to all electronic shelf labels, so as to wake up the electronic shelf labels;
  • the second master device is used to receive the broadcast sent by the electronic shelf label in the Bluetooth working mode, and establish a communication connection with the target electronic shelf label according to the broadcast;
  • the third master device is used to Perform data communication with the target electronic shelf label in the Bluetooth working mode.
  • the communication master terminal includes a fourth master terminal device and a fifth master terminal device;
  • the fourth master device is used to, when receiving the data transmission instruction sent by the server, in the wireless working mode, call the wireless transceiver device to send wake-up data packets to all electronic shelf labels, so as to wake up the electronic shelf labels;
  • the fifth master device is used to receive the broadcast sent by the electronic shelf label in the Bluetooth working mode, and establish a communication connection with the target electronic shelf label according to the broadcast;
  • the second master device is also used to Perform data communication with the target electronic shelf label in the Bluetooth working mode.
  • FIG. 4 is a schematic structural diagram of a data communication system for an electronic shelf label provided by an embodiment of the application.
  • the system is applied to an electronic shelf label and may include:
  • the wake-up detection module 210 is used to call the wireless transceiver in the wireless working mode to receive the wake-up data packet sent by the communication master when the tag state is detected as the sleep state;
  • the judging module 220 is used to judge whether the tag state is switched from the sleep state to the awake state;
  • the connection module 230 is configured to send a broadcast to the communication master in the Bluetooth working mode when the tag state is switched from the sleep state to the awake state, so as to establish a communication connection with the communication master;
  • the tag communication module 240 is used for data communication with the communication master in the Bluetooth working mode.
  • the electronic shelf label When the electronic shelf label is in the dormant state, the electronic shelf label directly calls the wireless transceiver to receive the wake-up data. After receiving the wake-up data packet, the electronic shelf label can determine whether the wake-up data packet includes its own identification code. Switch the label state from sleep state to wake state. Since the electronic shelf label of this embodiment calls the wireless transceiver device to receive the wake-up data packet in the wireless working mode, the cycle of scanning the wake-up data packet can be shortened, and is not limited by the Bluetooth low energy protocol stack. In this embodiment, when the tag state is switched to the awake state, the broadcast is sent, the connection is established, and data communication is performed in the Bluetooth working mode, and the characteristics of Bluetooth transmission are used to improve the efficiency of data transmission. This embodiment can improve the data communication efficiency between the master device and the electronic shelf label, and reduce the power consumption of the electronic shelf label.
  • the present application also provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed, the steps provided in the foregoing embodiments can be implemented.
  • the storage medium may include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes.
  • the present application also provides a communication master terminal, including a wireless data transceiver, a memory, and a processor.
  • the wireless data transceiver is used for data communication with the electronic shelf label.
  • the memory stores a computer program, and the processor When the computer program in the memory is called, the steps provided in the above embodiments can be implemented.
  • the communication master can also include various network interfaces, power supplies and other components.
  • the present application also provides an electronic shelf label, including a wireless data transceiver, a memory, and a processor.
  • the wireless data transceiver is used for data communication with the electronic shelf label.
  • the memory stores a computer program, and the processor When the computer program in the memory is called, the steps provided in the above embodiments can be implemented.
  • the electronic shelf label may also include various network interfaces, power supplies and other components.

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Abstract

本申请公开了一种电子货架标签的数据通信方法，包括当接收到服务器发送的数据传输指令时，在无线工作模式下调用无线收发装置向所有电子货架标签发送唤醒数据包，以便唤醒所述电子货架标签；在蓝牙工作模式下接收所述电子货架标签发送的广播，并根据所述广播建立与目标电子货架标签的通信连接；在所述蓝牙工作模式下与所述目标电子货架标签进行数据通信。本申请能够提升主端设备与电子货架标签的数据通信效率，降低电子货架标签的功耗。本申请还公开了一种电子货架标签的数据通信系统、一种计算机可读存储介质、一种通信主端和一种电子货架标签，具有以上有益效果。

Description

一种电子货架标签的数据通信方法、系统及相关组件 技术领域
本发明涉及物联网技术领域，特别涉及一种电子货架标签的数据通信方法、系统、一种计算机可读存储介质、一种通信主端和一种电子货架标签。
背景技术
电子货架标签即ESL(Electronic Shelf Label)，是一种放置在货架上、可替代传统纸质价格标签和TN型液晶显示屏的全新一代多稳态电子显示装置。电子货架标签将货架纳入了计算机程序，摆脱了手动更换价格标签的状况，实现了收银台与货架之间的价格一致性。
电子货架标签有如下几种工作状态：休眠、广播、建立连接和数据通信。与此对应的，主端有如下几种工作状态：监测电子货架标签广播、唤醒电子货架标签、连接电子货架标签和数据通信。因为电子货架标签一般是通过电池供电，往往需要工作几年，所以对功耗的要求比较高，而且一般数量比较多，所以要求主端能够快速响应，对每一个电子货架标签能够快速的完成通信过程，就对电子货架标签和主端设备的设计提出了比较高的要求，几种工作状态能够快速的切换，以便快速的完成每一步操作。
一个主端设备可以对应多个电子货架标签，主端设备需要不断的切换工作状态，逐个唤醒每一个标签完成通信操作，因此主端设备的响应速度和工作状态切换速度就会成为整个系统的瓶颈。在相关技术中，主端设备和电子货架标签一直工作在蓝牙模式下，由于受到蓝牙低能耗(Bluetooth Low Energy，BLE)协议栈限制，主端设备与电子货架标签之间的通信过程时间较长，增加了电子货架标签的功耗。
因此，如何提升主端设备与电子货架标签的数据通信效率，降低电子货架标签的功耗是本领域技术人员目前需要解决的技术问题。
发明内容
本申请的目的是提供一种电子货架标签的数据通信方法、系统、一种计算机可读存储介质、一种通信主端和一种电子货架标签，能够提升主端设备与电子货架标签的数据通信效率，降低电子货架标签的功耗。
为解决上述技术问题，本申请提供一种电子货架标签的数据通信方法，应用于通信主端，该数据通信方法包括：
当接收到服务器发送的数据传输指令时，在无线工作模式下调用无线收发装置向所有电子货架标签发送唤醒数据包，以便唤醒所述电子货架标签；
在蓝牙工作模式下接收所述电子货架标签发送的广播，并根据所述广播建立与目标电子货架标签的通信连接；
在所述蓝牙工作模式下与所述目标电子货架标签进行数据通信。
可选的，所述根据所述广播建立与目标电子货架标签的通信连接包括：
将所述广播发送至所述服务器，以便所述服务器根据所述广播确定所述目标电子货架标签；
接收所述服务器发送的所述目标电子货架标签的标签ID，并根据所述标签ID建立与所述目标电子货架标签的通信连接。
可选的，所述通信主端包括第一主端设备、第二主端设备和第三主端设备；
其中，所述第一主端设备用于当接收到服务器发送的数据传输指令时，在无线工作模式下调用无线收发装置向所有电子货架标签发送唤醒数据包，以便唤醒所述电子货架标签；所述第二主端设备用于在蓝牙工作模式下接收所述电子货架标签发送的广播，并根据所述广播建立与目标电子货架标签的通信连接；所述第三主端设备用于在所述蓝牙工作模式下与所述目标电子货架标签进行数据通信。
可选的，所述通信主端包括第四主端设备和第五主端设备；
其中，所述第四主端设备用于当接收到服务器发送的数据传输指令时，在无线工作模式下调用无线收发装置向所有电子货架标签发送唤醒数据包，以便唤醒所述电子货架标签；所述第五主端设备用于在蓝牙工作模式下接收所述电子货架标签发送的广播，并根据所述广播建立与目标电子货架标签的通信连接；所述第二主端设备还用于在所述蓝牙工作模式下与所述目标电子货架标签进行数据通信。
本申请还提供了一种电子货架标签的数据通信系统，应用于通信主端，该数据通信系统包括：
唤醒模块，用于当接收到服务器发送的数据传输指令时，在无线工作模式下调用无线收发装置向所有电子货架标签发送唤醒数据包，以便唤醒所述电子货架标签；
广播扫描模块，用于在蓝牙工作模式下接收所述电子货架标签发送的广播；
主端通信模块，用于根据所述广播建立与目标电子货架标签的通信连接；还用于在所述蓝牙工作模式下与所述目标电子货架标签进行数据通信。
本申请还提供一种电子货架标签的数据通信方法，应用于电子货架标签，该数据通信方法包括：
当检测到标签状态为休眠状态时，在无线工作模式下调用无线收发装置接收通信主端发送的唤醒数据包；
判断所述标签状态是否由休眠状态切换为唤醒状态；
若是，则在蓝牙工作模式下向所述通信主端发送广播，以便建立与所述通信主端的通信连接；
在所述蓝牙工作模式下与所述通信主端进行数据通信。
本申请还提供一种电子货架标签的数据通信系统，应用于电子货架标签，该数据通信系统包括：
唤醒检测模块，用于当检测到标签状态为休眠状态时，在无线工作模式下调用无线收发装置接收通信主端发送的唤醒数据包；
判断模块，用于判断所述标签状态是否由休眠状态切换为唤醒状态；
连接模块，用于当所述标签状态由休眠状态切换为唤醒状态时，在蓝牙工作模式下向所述通信主端发送广播，以便建立与所述通信主端的通信连接；
标签通信模块，用于在所述蓝牙工作模式下与所述通信主端进行数据通信。
本申请还提供了一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序执行时实现上述应用于通信主端和/或应用于电子货架标签的电子货架标签的数据通信方法执行的步骤。
本申请还提供了一种通信主端，包括无线数据收发器、存储器和处理器，所述无线数据收发器用于与电子货架标签进行数据通信，所述存储器中存储有计算机程序，所述处理器调用所述存储器中的计算机程序时实现上述电子货架标签的数据通信方法执行的步骤。
本申请还提供了一种电子货架标签，包括无线数据收发器、存储器和处理器，所述无线数据收发器用于与电子货架标签进行数据通信，所述存储器中存储有计算机程序，所述处理器调用所述存储器中的计算机程序时实现上述电子货架标签的数据通信方法执行的步骤。
本申请提供了一种电子货架标签的数据通信方法，应用于通信主端，包括：当接收到服务器发送的数据传输指令时，在无线工作模式下调用无线收发装置向所有电子货架标签发送唤醒数据包，以便唤醒所述电子货架标签；在蓝牙工作模式下接收所述电子货架标签发送的广播，并根据所述广播建立与目标电子货架标签的通信连接；在所述蓝牙工作模式下与所述目标电子货架标签进行数据通信。
本申请在通信主端需要发送唤醒数据包时，将通信主端的工作模式设置为无线工作模式，在无线工作模式下直接调用无线收发装置向所有的电子货架标签发送唤醒数据包。由于在无线工作模式下直接调用无线收发装置发送唤醒数据包无需受到蓝牙低能耗协议栈限制，因此能够缩短电子货架标签扫描周期，明显降低电子货架标签的功耗。蓝牙模式便于进行复杂的数据通信，因此本申请在向电子货架标签发送唤醒数据包之后，本申请将通信主端的工作模式设置为蓝牙工作模式，在蓝牙工作模式下接收广播、建立连接并进行数据通信。本申请能够提升主端设备与电子货架标签的数据通信效率，降低电子货架标签的功耗。本申请同时还提供了一种电子货架标签的数据通信系统、一种计算机可读存储介质、一种通信主端和一种电子货架标签，具有上述有益效果，在此不再赘述。
附图说明
为了更清楚地说明本申请实施例，下面将对实施例中所需要使用的附图做简单的介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例， 对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例所提供的一种电子货架标签的数据通信方法的流程图；
图2为本申请实施例所提供的另一种电子货架标签的数据通信方法的流程图；
图3为本申请实施例所提供的一种电子货架标签的数据通信系统的结构示意图；
图4为本申请实施例所提供的一种电子货架标签的数据通信系统的结构示意图。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
下面请参见图1，图1为本申请实施例所提供的一种电子货架标签的数据通信方法的流程图。
具体步骤可以包括：
S101：当接收到服务器发送的数据传输指令时，在无线工作模式下调用无线收发装置向所有电子货架标签发送唤醒数据包，以便唤醒所述电子货架标签；
其中，本实施例可以应用于电子货架标签系统的通信主端，该通信主端可以为设置有无线通信模块的设备，以便基于无线通信模块与电子货架标签进行信息交互。该无线通信模块可以为蓝牙模块、Wi-Fi模块等。电子货架标签系统可以包括服务器、通过网关设备与服务器连接的通信主端以及电子货架标签。
需要说明的是本实施例所应用于的通信主端可以为多个主端设备的总称，即电子货架标签系统中可以存在多个主端设备，每一主端设备可以与多个电子货架标签进行通信。
在本步骤之前可以存在服务器通过网关设备向通信主端发送数据传输指令的操作。为了降低功耗，电子货架标签在不与通信主端进行数据交互时，通常处于休眠状态，因此通信主端在需要与电子货架标签进行数据通信之前需要唤醒处于休眠状态的电子货架标签。
需要说明的是，在本实施例中当电子货架标签处于休眠状态时，电子货架标签的工作模式为无线工作模式，即直接调用无线数据收发器扫描唤醒数据包；进一步的，本实施例中在通信主端向电子货架标签发送唤醒数据包的具体方式为：在无线工作模式下直接调用无线数据收发器发送唤醒数据包。
可以理解的是，相关技术中通信主端在蓝牙模式下发送唤醒数据包需要受到蓝牙低能耗(Bluetooth Low Energy，BLE)协议栈限制，即通信主端的发送周期和电子货架标签的扫描周期均受到蓝牙低能耗协议栈限制，导致电子货架标签的唤醒效率较低，增加了电子货架标签的功耗。缩短扫描周期相当于减少电子货架标签执行扫描操作的时长，因此能够减少功耗。而在本实施例中，通信主端将工作模式设置为无线工作模式，可以直接调用底层的无线收发装置发送唤醒数据包，不受蓝牙低能耗协议栈限制。
进一步的，唤醒数据包中可以存在多个电子货架标签的识别码，在电子货架标签接收到唤醒数据包后，判断自身的识别码是否在唤醒数据包中，若是，则可以由休眠状态切换为唤醒状态。在电子货架标签被唤醒后可以发送广播，告知通信主端自身已被激活。
S102：在蓝牙工作模式下接收所述电子货架标签发送的广播，并根据所述广播建立与目标电子货架标签的通信连接；
其中，通信主端在唤醒电子货架标签之后在蓝牙工作模式下接收电子货架标签发送的广播，以确定被唤醒的电子货架标签。由于无线工作模式不便于进行复杂的数据通信，而蓝牙工作模式能够快速建立通信连接和数据通信，因此本实施例通信主端在唤醒电子货架标签之后将工作模式切换为蓝牙工作模式。
作为一种可行的实施方式，S102中所述根据所述广播建立与目标电子货架标签的通信连接的步骤可以包括以下操作：
步骤1：将所述广播发送至所述服务器，以便所述服务器根据所述广播确定所述目标电子货架标签；
步骤2：接收所述服务器发送的所述目标电子货架标签的标签ID，并根据所述标签ID建立与所述目标电子货架标签的通信连接。
S103：在所述蓝牙工作模式下与所述目标电子货架标签进行数据通信。
作为一种可行的实施方式，在通信主端接收到广播后，可以将电子货架标签的广播转发至服务器，由服务器确定需要向每一唤醒的电子货架标签发送的数据或需要电子货架标签发送的数据，以便完成数据通信。
本实施例在通信主端需要发送唤醒数据包时，将通信主端的工作模式设置为无线工作模式，在无线工作模式下直接调用无线收发装置向所有的电子货架标签发送唤醒数据包。由于在无线工作模式下直接调用无线收发装置发送唤醒数据包无需受到蓝牙低能耗协议栈限制，因此能够缩短电子货架标签扫描周期，明显降低电子货架标签的功耗。蓝牙模式便于进行复杂的数据通信，因此本实施例在向电子货架标签发送唤醒数据包之后，本实施例将通信主端的工作模式设置为蓝牙工作模式，在蓝牙工作模式下接收广播、建立连接并进行数据通信。本实施例能够提升主端设备与电子货架标签的数据通信效率，降低电子货架标签的功耗。
作为对于图1对应实施例的进一步补充，通信主端可以包括多个主端设备，每一主端设备可以有其对应的分工，具体的通信主端包括以下三类设备：第一主端设备、第二主端设备和第三主端设备；其中，所述第一主端设备用于当接收到服务器发送的数据传输指令时，在无线工作模式下调用无线收发装置向所有电子货架标签发送唤醒数据包，以便唤醒所述电子货架标签；所述第二主端设备用于在蓝牙工作模式下接收所述电子货架标签发送的广播，并根据所述广播建立与目标电子货架标签的通信连接；所述第三主端设备用于在所述蓝牙工作模式下与所述目标电子货架标签进行数据通信。
举例说明上述论述，例如存在A、B和C三个主端设备，主端A工作在无线模式下，专门负责电子货架标签唤醒操作，主端B工作在蓝牙模式下， 专门负责扫描电子货架标签的广播，主端C工作在蓝牙模式下，专门负责与电子货架标签建立连接和完成数据通信。每一个主端的工作模式状态，是由来自服务器的控制指令决定的。而每一个电子货架标签有无线和蓝牙两种工作模式，休眠、广播、连接和通信三种状态，是由自身的工作状态机轮转决定的。一般处于休眠状态下，低功耗运行，周期扫描无线唤醒信号，比如每5秒扫描10毫秒。由此，工作在无线状态下负责唤醒电子货架标签的主端设备就需要保证在电子货架标签扫描的期间内，比如连续5秒内，不断的周期发送唤醒信号，周期不大于电子货架标签的扫描时间。唤醒信号设计两种，一种是在无线数据包指定位置上，包含指定的特定内容，比如设备ID或者设备MAC等，一种是无线数据包的全部或者部分内容符合特定的规则。只要有其中一个唤醒信号满足要求，电子货架标签即被唤醒，然后进入蓝牙模式，开始进入广播状态，等待主端设备的连接。
上述补充相当于将通信主端与电子货架标签的数据通信过程划分为唤醒、连接和通信三个阶段，每一类主端设备可对应一个阶段。也就是说，第一主端设备、第二主端设备和第三主端设备交替工作，提高了数据通信的效率。
作为对于图1对应实施例的进一步补充，通信主端可以包括多个主端设备，每一主端设备可以有其对应的分工，具体的通信主端包括以下2类设备：第四主端设备和第五主端设备；其中，所述第四主端设备用于当接收到服务器发送的数据传输指令时，在无线工作模式下调用无线收发装置向所有电子货架标签发送唤醒数据包，以便唤醒所述电子货架标签；所述第五主端设备用于在蓝牙工作模式下接收所述电子货架标签发送的广播，并根据所述广播建立与目标电子货架标签的通信连接；所述第五主端设备还用于在所述蓝牙工作模式下与所述目标电子货架标签进行数据通信。
当然，还可以根据实际应用情况灵活调整通信主端中各个主端设备的组合策略，此处不进行具体的限定。进一步的在主端设备上，每一个主端设备的工作模式和工作状态可以受来自服务器或者网关控制指令随时改变的，当然也可以一直处于特定模式或特定工作状态下。
下面请参见图2，图2为本申请实施例所提供的另一种电子货架标签的数据通信方法的流程图。
具体步骤可以包括：
S201：当检测到标签状态为休眠状态时，在无线工作模式下调用无线收发装置接收通信主端发送的唤醒数据包；
S202：判断所述标签状态是否由休眠状态切换为唤醒状态；若是，则进入S203；
S203：在蓝牙工作模式下向所述通信主端发送广播，以便建立与所述通信主端的通信连接；
S204：在所述蓝牙工作模式下与所述通信主端进行数据通信。
上述实施例是图1对应的实施例中一个电子货架标签的数据通信方式，在电子货架标签系统中可以存在多个本实施例所描述的电子货架标签。当电子货架标签处于休眠状态时，电子货架标签直接调用无线收发装置接收唤醒数据，在接收到唤醒数据包之后，电子货架标签可以存在判断唤醒数据包中是否包括自身识别码的操作，若存在则将标签状态由休眠状态切换为唤醒状态。由于本实施例的电子货架标签在无线工作模式下调用无线收发装置接收唤醒数据包，能够缩短扫描唤醒数据包的周期，不受蓝牙低能耗协议栈的限制。本实施例在标签状态切换为唤醒状态时，在蓝牙工作模式下发送广播、建立联机并进行数据通信，利用蓝牙传输的特性提升了数据传输的效率。本实施例能够提升主端设备与电子货架标签的数据通信效率，降低电子货架标签的功耗。
下面通过在实际应用中的实施例说明上述实施例描述的流程。
主端设备和电子货架标签分别设计两种工作模式，分别是无线工作模式和蓝牙工作模式。无线工作模式可以直接操作2.4GHz收发器模块进行数据收发，而蓝牙工作模式则是通过BLE(低功耗蓝牙)协议栈模块间接操作2.4GHz收发器模块进行数据收发。无线工作模式下可以实现快速反应，但是不便于做比较复杂的数据通信，而蓝牙工作模式刚好相反。两种工作模式是可以根据需要自由切换的。
主端设备在无线工作模式下，完成唤醒电子货架标签的操作。在蓝牙工作模式下，完成电子货架标签的广播扫描和处理、与电子货架标签建立连接并且进行数据通信。
电子货架标签在无线工作模式下，完成唤醒监测，监测到针对自身的唤醒信号，就激活自身，工作模式切换到蓝牙模式下。在蓝牙工作模式下，完成广播、连接处理和数据通信。
为了提高系统性能，快速的唤醒所有的电子货架标签，并且快速的完成所有的通信操作，可以充分利用主端设备可以自由切换工作模式的优势，可以将多个主端设备进行分工，有如下几种执行策略：
策略1、将至少三个主端做分工，一个工作在无线工作模式下专门负责电子货架标签唤醒，一个工作在蓝牙工作模式下专门负责广播扫描处理，一个工作在蓝牙工作模式下专门负责数据通信；
策略2、部分主端设备集中工作在无线模块下负责完成所有的电子货架标签唤醒，另外的主端设备集中工作在蓝牙工作模式下完成电子货架标签广播扫描处理和建立连接和数据通信；
策略3、部分或者全部开始工作在无线工作模式下负责完成唤醒所有的电子货架标签，再将工作模式切换到蓝牙工作模式下完成电子货架标签广播扫描处理和建立连接和数据通信；
通过上述实施方式，电子货架标签和主端设备都设计无线和蓝牙两种工作模式，而且同时使用多个主端对应同一批电子货架标签。而在无线工作模式下，扫描唤醒信号的周期可以缩短到10毫秒，甚至更短，就可以明显降低电子货架标签的功耗。主端设备可以在最短的时间唤醒所有的电子货架标签，在最短的时间响应电子货架标签的广播，在最短的时间完成与所有的电子货架标签的数据通信操作，电子货架标签从唤醒到完成数据通信时间最短，从而将功耗降到最低。
可以理解的是，当电子货架标签系统中存在图1对应实施例中描述的通信主端以及多个图2对应实施例中描述的电子货架标签时，通信主端可以实现快速响应缩短整体的通信处理时间，达到系统整体性能最优；可以缩短电子货架标签的扫描周期，明显降低功耗，延长电子货架标签电池使用寿命。
请参见图3，图3为本申请实施例所提供的一种电子货架标签的数据通信系统的结构示意图，该系统应用于通信主端，可以包括：
唤醒模块110，用于当接收到服务器发送的数据传输指令时，在无线工作模式下调用无线收发装置向所有电子货架标签发送唤醒数据包，以便唤醒所述电子货架标签；
广播扫描模块120，用于在蓝牙工作模式下接收所述电子货架标签发送的广播；
主端通信模块130，用于根据所述广播建立与目标电子货架标签的通信连接，还用于在所述蓝牙工作模式下与所述目标电子货架标签进行数据通信。
本实施例在通信主端需要发送唤醒数据包时，将通信主端的工作模式设置为无线工作模式，在无线工作模式下直接调用无线收发装置向所有的电子货架标签发送唤醒数据包。由于在无线工作模式下直接调用无线收发装置发送唤醒数据包无需受到蓝牙低能耗协议栈限制，因此能够缩短电子货架标签扫描周期，明显降低电子货架标签的功耗。蓝牙工作模式便于进行复杂的数据通信，因此本实施例在向电子货架标签发送唤醒数据包之后，本实施例将通信主端的工作模式设置为蓝牙工作模式，在蓝牙工作模式下接收广播、建立连接并进行数据通信。本实施例能够提升主端设备与电子货架标签的数据通信效率，降低电子货架标签的功耗。
进一步的，广播扫描模块120包括：
广播接收单元，用于在蓝牙工作模式下接收所述电子货架标签发送的广播；
广播发送单元，用于将所述广播发送至所述服务器，以便所述服务器根据所述广播确定所述目标电子货架标签；
连接单元，用于接收所述服务器发送的所述目标电子货架标签的标签ID，并根据所述标签ID建立与所述目标电子货架标签的通信连接。
进一步的，所述通信主端包括第一主端设备、第二主端设备和第三主端设备；
其中，所述第一主端设备用于当接收到服务器发送的数据传输指令时，在无线工作模式下调用无线收发装置向所有电子货架标签发送唤醒数据包，以便唤醒所述电子货架标签；所述第二主端设备用于在蓝牙工作模式下接收 所述电子货架标签发送的广播，并根据所述广播建立与目标电子货架标签的通信连接；所述第三主端设备用于在所述蓝牙工作模式下与所述目标电子货架标签进行数据通信。
进一步的，所述通信主端包括第四主端设备和第五主端设备；
其中，所述第四主端设备用于当接收到服务器发送的数据传输指令时，在无线工作模式下调用无线收发装置向所有电子货架标签发送唤醒数据包，以便唤醒所述电子货架标签；所述第五主端设备用于在蓝牙工作模式下接收所述电子货架标签发送的广播，并根据所述广播建立与目标电子货架标签的通信连接；所述第二主端设备还用于在所述蓝牙工作模式下与所述目标电子货架标签进行数据通信。
请参见图4，图4为本申请实施例所提供的一种电子货架标签的数据通信系统的结构示意图，该系统应用于电子货架标签，可以包括：
唤醒检测模块210，用于当检测到标签状态为休眠状态时，在无线工作模式下调用无线收发装置接收通信主端发送的唤醒数据包；
判断模块220，用于判断所述标签状态是否由休眠状态切换为唤醒状态；
连接模块230，用于当所述标签状态由休眠状态切换为唤醒状态时，在蓝牙工作模式下向所述通信主端发送广播，以便建立与所述通信主端的通信连接；
标签通信模块240，用于在所述蓝牙工作模式下与所述通信主端进行数据通信。
当电子货架标签处于休眠状态时，电子货架标签直接调用无线收发装置接收唤醒数据，在接收到唤醒数据包之后，电子货架标签可以存在判断唤醒数据包中是否包括自身识别码的操作，若存在则将标签状态由休眠状态切换为唤醒状态。由于本实施例的电子货架标签在无线工作模式下调用无线收发装置接收唤醒数据包，能够缩短扫描唤醒数据包的周期，不受蓝牙低能耗协议栈的限制。本实施例在标签状态切换为唤醒状态是，在蓝牙工作模式下发送广播、建立联机并进行数据通信，利用蓝牙传输的特性提升了数据传输的效率。本实施例能够提升主端设备与电子货架标签的数据通信效率，降低电子货架标签的功耗。
由于系统部分的实施例与方法部分的实施例相互对应，因此系统部分的实施例请参见方法部分的实施例的描述，这里暂不赘述。
本申请还提供了一种计算机可读存储介质，其上存有计算机程序，该计算机程序被执行时可以实现上述实施例所提供的步骤。该存储介质可以包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
本申请还提供了一种通信主端，包括无线数据收发器、存储器和处理器，所述无线数据收发器用于与电子货架标签进行数据通信，所述存储器中存储有计算机程序，所述处理器调用所述存储器中的计算机程序时，可以实现上述实施例所提供的步骤。当然所述通信主端还可以包括各种网络接口，电源等组件。
本申请还提供了一种电子货架标签，包括无线数据收发器、存储器和处理器，所述无线数据收发器用于与电子货架标签进行数据通信，所述存储器中存储有计算机程序，所述处理器调用所述存储器中的计算机程序时，可以实现上述实施例所提供的步骤。当然所述电子货架标签还可以包括各种网络接口，电源等组件。
说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。对于实施例公开的系统而言，由于其与实施例公开的方法相对应，所以描述的比较简单，相关之处参见方法部分说明即可。应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以对本申请进行若干改进和修饰，这些改进和修饰也落入本申请权利要求的保护范围内。
还需要说明的是，在本说明书中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的状况下，由语句“包括一个……”限定的要素， 并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。

Claims (10)

  1. 一种电子货架标签的数据通信方法，其特征在于，应用于通信主端，包括：
    当接收到服务器发送的数据传输指令时，在无线工作模式下调用无线收发装置向所有电子货架标签发送唤醒数据包，以便唤醒所述电子货架标签；
    在蓝牙工作模式下接收所述电子货架标签发送的广播，并根据所述广播建立与目标电子货架标签的通信连接；
    在所述蓝牙工作模式下与所述目标电子货架标签进行数据通信。
  2. 根据权利要求1所述数据通信方法，其特征在于，所述根据所述广播建立与目标电子货架标签的通信连接包括：
    将所述广播发送至所述服务器，以便所述服务器根据所述广播确定所述目标电子货架标签；
    接收所述服务器发送的所述目标电子货架标签的标签ID，并根据所述标签ID建立与所述目标电子货架标签的通信连接。
  3. 根据权利要求1所述数据通信方法，其特征在于，所述通信主端包括第一主端设备、第二主端设备和第三主端设备；
    其中，所述第一主端设备用于当接收到服务器发送的数据传输指令时，在所述无线工作模式下调用所述无线收发装置向所有所述电子货架标签发送所述唤醒数据包，以便唤醒所述电子货架标签；所述第二主端设备用于在所述蓝牙工作模式下接收所述电子货架标签发送的广播，并根据所述广播建立与目标电子货架标签的通信连接；所述第三主端设备用于在所述蓝牙工作模式下与所述目标电子货架标签进行数据通信。
  4. 根据权利要求1所述数据通信方法，其特征在于，所述通信主端包括第四主端设备和第五主端设备；
    其中，所述第四主端设备用于当接收到服务器发送的数据传输指令时，在所述无线工作模式下调用所述无线收发装置向所有电子货架标签发送所述唤醒数据包，以便唤醒所述电子货架标签；所述第五主端设备用于在所述蓝牙工作模式下接收所述电子货架标签发送的广播，并根据所述广播建立与目标电子货架标签的通信连接；所述第二主端设备还用于在所述蓝牙工作模式下与所述目标电子货架标签进行数据通信。
  5. 一种电子货架标签的数据通信系统，其特征在于，应用于通信主端，包括：
    唤醒模块，用于当接收到服务器发送的数据传输指令时，在无线工作模式下调用无线收发装置向所有电子货架标签发送唤醒数据包，以便唤醒所述电子货架标签；
    广播扫描模块，用于在蓝牙工作模式下接收所述电子货架标签发送的广播；
    主端通信模块，用于根据所述广播建立与目标电子货架标签的通信连接；还用于在所述蓝牙工作模式下与所述目标电子货架标签进行数据通信。
  6. 一种电子货架标签的数据通信方法，其特征在于，应用于电子货架标签，包括：
    当检测到标签状态为休眠状态时，在无线工作模式下调用无线收发装置接收通信主端发送的唤醒数据包；
    判断所述标签状态是否由休眠状态切换为唤醒状态；
    若是，则在蓝牙工作模式下向所述通信主端发送广播，以便建立与所述通信主端的通信连接；
    在所述蓝牙工作模式下与所述通信主端进行数据通信。
  7. 一种电子货架标签的数据通信系统，其特征在于，应用于电子货架标签，包括：
    唤醒检测模块，用于当检测到标签状态为休眠状态时，在无线工作模式下调用无线收发装置接收通信主端发送的唤醒数据包；
    判断模块，用于判断所述标签状态是否由休眠状态切换为唤醒状态；
    连接模块，用于当所述标签状态由休眠状态切换为唤醒状态时，在蓝牙工作模式下向所述通信主端发送广播，以便建立与所述通信主端的通信连接；
    标签通信模块，用于在所述蓝牙工作模式下与所述通信主端进行数据通信。
  8. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1至4和/或权利要求6任一项所述电子货架标签的数据通信方法的步骤。
  9. 一种通信主端，其特征在于，包括：
    无线数据收发器，用于与电子货架标签进行数据通信；
    存储器，用于存储计算机程序；
    处理器，用于执行所述计算机程序时实现如权利要求1至4任一项所述电子货架标签的数据通信方法的步骤。
  10. 一种电子货架标签，其特征在于，包括：
    无线数据收发器，用于与通信主端进行数据通信；
    存储器，用于存储计算机程序；
    处理器，用于执行所述计算机程序时实现如权利要求6所述电子货架标签的数据通信方法的步骤。
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