CN113163345A - Broadcast communication method, system, gateway equipment and electronic price tag - Google Patents
Broadcast communication method, system, gateway equipment and electronic price tag Download PDFInfo
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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
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisions for transferring data to distant stations, e.g. from a sensing device
- G06K17/0029—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisions for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- 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
- H04W52/0248—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission activity
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- H04W8/00—Network data management
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The application is applicable to the technical field of Bluetooth communication application, and provides a broadcast communication method, a system, gateway equipment and an electronic price tag, wherein the method comprises the following steps: when a data transmission instruction sent by a server is received, sending a wake-up data packet to the plurality of electronic price tags, wherein the wake-up data packet is used for waking up a target electronic price tag in the plurality of electronic price tags; after a first data packet of a target electronic price tag broadcast is scanned, establishing communication connection with the target electronic price tag; according to the data transmission instruction, an operation command data packet is sent to the target electronic price tag, and the operation command data packet is used for indicating the target electronic price tag to execute an operation task; and obtaining a second data packet broadcasted by the target electronic price tag through scanning, wherein the second data packet is information broadcasted after the target electronic price tag completes the operation task. By the method and the device, the problems that the electronic price tag is always in the awakening state, the power consumption is high, and the processing resources of the gateway device are occupied, so that the communication efficiency is low can be solved.
Description
Technical Field
The application belongs to the technical field of Bluetooth communication application, and particularly relates to a broadcast communication method, a broadcast communication system, a gateway device and an electronic price tag.
Background
An Electronic price tag is also called an Electronic Shelf Label (ESL), is an Electronic display device with an information receiving and sending function, and is mainly applied to Electronic tags for displaying commodity information in supermarkets, convenience stores, pharmacies and the like. The electronic shelf labels are generally placed on a shelf to replace the traditional electronic display device of the paper price label, each electronic shelf label is in wired or wireless communication with a database at a server end through gateway equipment, and the latest commodity information is displayed through a screen on the electronic shelf label.
At present, an electronic price tag is used as a communication slave end, and information of the slave end is broadcasted in a Bluetooth broadcasting mode in the communication process with gateway equipment, so that the electronic price tag is always in an awakening state and has high power consumption; in addition, in the process of updating the displayed content by the electronic price tag, the gateway device needs to wait for the operation of whether the electronic price tag is updated or not, so that the processing resources of the gateway device are greatly occupied, and the communication efficiency of the gateway device is reduced.
Disclosure of Invention
The embodiment of the application provides a broadcast communication method, a broadcast communication system, a gateway device and an electronic price tag, and can solve the problems that the electronic price tag is always in an awakening state and has high power consumption, and the communication efficiency is low due to the fact that processing resources of the gateway device are occupied.
In a first aspect, an embodiment of the present application provides a broadcast communication method, which is applied to a gateway device, and the method includes:
when a data transmission instruction sent by a server is received, sending a wake-up data packet to a plurality of electronic price tags, wherein the wake-up data packet is used for waking up a target electronic price tag in the plurality of electronic price tags; after a first data packet broadcasted by the target electronic price tag is scanned, establishing communication connection with the target electronic price tag; according to the data transmission instruction, an operation command data packet is sent to the target electronic price tag, and the operation command data packet is used for indicating the target electronic price tag to execute an operation task; and obtaining a second data packet broadcasted by the target electronic price tag through scanning, wherein the second data packet is information broadcasted after the target electronic price tag completes the operation task.
In a possible implementation manner of the first aspect, after sending an operation command data packet to the target electronic price tag according to the data transmission instruction, the method further includes:
and disconnecting the communication connection with the target electronic price tag, waking up the next target electronic price tag and establishing communication connection with the next target electronic price tag.
In a possible implementation manner of the first aspect, after obtaining the second data packet of the target electronic price tag broadcast by scanning, the method further includes:
and sending the running state information of the target electronic price tag to the server according to the second data packet.
In a second aspect, an embodiment of the present application provides a broadcast communication method, which is applied to a target electronic price tag, and the method includes:
after receiving a wake-up data packet sent by gateway equipment, broadcasting a first data packet to the gateway equipment, wherein the first data packet is used for informing the gateway equipment that the target electronic price tag is in a wake-up state currently; establishing communication connection with the gateway equipment, and receiving an operation command data packet sent by the gateway equipment according to a data transmission instruction, wherein the data transmission instruction is information sent to the gateway equipment by a server; and executing an operation task according to the operation command data packet, and broadcasting a second data packet to the gateway equipment after the operation task is completed, wherein the second data packet is used for informing the gateway equipment of the running state information of the target electronic price tag.
In one possible implementation manner of the second aspect, the method further includes:
and broadcasting a plurality of data frames in the first data packet according to a first preset time sequence or broadcasting a plurality of data frames in the second data packet according to a second preset time sequence through a single timer.
In a possible implementation manner of the second aspect, the executing an operation task according to the operation command data packet includes:
and updating the content to be displayed according to the picture information and the operation command in the operation command data packet.
In a third aspect, an embodiment of the present application provides a broadcast communication system, where the system includes:
the server is used for sending a data transmission instruction to the gateway equipment;
the gateway equipment is used for receiving the data transmission instruction sent by the server, sending a wake-up data packet to the electronic price tag, establishing communication connection with the electronic price tag and sending an operation command data packet to the electronic price tag;
and the electronic price tag is used for broadcasting the first data packet after receiving the awakening data packet and broadcasting the second data packet after receiving the operation command data packet and executing the operation task.
In a fourth aspect, embodiments of the present application provide a gateway device, which includes a wireless transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the wireless transceiver is configured to communicate data with an electronic price tag, and the processor implements the method when executing the computer program.
In a fifth aspect, embodiments of the present application provide an electronic price tag, where the electronic price tag includes a wireless transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor, the wireless transceiver is configured to communicate data with a gateway device, and the processor implements the method when executing the computer program.
In a sixth aspect, the present application provides a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the computer program implements the method.
In a seventh aspect, an embodiment of the present application provides a computer program product, which, when run on a terminal device, causes the terminal device to execute the method of any one of the first aspect or the second aspect.
It is to be understood that, the beneficial effects of the second to seventh aspects may be referred to the relevant description of the first aspect, and are not repeated herein.
Compared with the prior art, the embodiment of the application has the advantages that: according to the embodiment of the application, when receiving a data transmission instruction sent by a server, the gateway equipment sends a wake-up data packet to the plurality of electronic price tags so as to wake up a target electronic price tag in the plurality of electronic price tags; after a first data packet of a target electronic price tag broadcast is scanned, the gateway equipment establishes communication connection with the target electronic price tag; therefore, the electronic price tag does not need to be broadcasted all the time, and the power consumption of the electronic price tag is reduced; according to the data transmission instruction, the gateway equipment sends an operation command data packet to the target electronic price tag to indicate the target electronic price tag to execute an operation task; after the target electronic price tag finishes the operation task, a second data packet broadcasted by the target electronic price tag is obtained through scanning, so that the completion of the target electronic price tag task can be determined, the process that the gateway equipment waits for the target electronic price tag to execute the operation task is not needed, the processing resources of the gateway equipment are saved, and the communication efficiency is improved; has strong usability and practicability.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a system architecture diagram of an application scenario provided in an embodiment of the present application;
fig. 2 is a flowchart illustrating a broadcast communication method according to an embodiment of the present application;
fig. 3 is a flowchart illustrating a broadcast communication method according to another embodiment of the present application;
FIG. 4 is a block diagram of a handshake broadcast according to an embodiment of the present application;
FIG. 5 is a block diagram of a reply broadcast according to another embodiment of the present application;
FIG. 6 is a flow diagram of a single timer broadcast provided by an embodiment of the present application;
FIG. 7 is an exemplary diagram of an interaction flow provided by an embodiment of the application;
fig. 8 is a schematic structural diagram of a gateway device provided in an embodiment of the present application;
fig. 9 is a schematic structural diagram of an electronic price tag provided in an embodiment of the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It should also be understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
As used in this specification and the appended claims, the term "if" may be interpreted contextually as "when", "upon" or "in response to" determining "or" in response to detecting ". Similarly, the phrase "if it is determined" or "if a [ described condition or event ] is detected" may be interpreted contextually to mean "upon determining" or "in response to determining" or "upon detecting [ described condition or event ]" or "in response to detecting [ described condition or event ]".
Furthermore, in the description of the present application and the appended claims, the terms "first," "second," "third," and the like are used for distinguishing between descriptions and not necessarily for describing or implying relative importance.
Reference throughout this specification to "one embodiment" or "some embodiments," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless expressly specified otherwise.
The electronic price tag is a brand new generation multistable electronic display device which is placed on a goods shelf, can replace the traditional paper price tag and is provided with a liquid crystal display screen, and the working state of the electronic price tag comprises operation tasks of dormancy, broadcasting, connection establishment, data communication, picture swiping, price change and the like. Because the electronic price tag is used as a slave end device, the electronic price tag is generally powered by a battery, and the requirement on power consumption is high; moreover, the master end equipment can correspond to a plurality of electronic price tags, the working state needs to be switched continuously, the transmission data of different electronic price tags are processed, and the requirement on the working efficiency of the master end is high.
At present, on one hand, data communication between a server and an electronic price tag basically establishes communication connection through a gateway device (such as a bluetooth gateway as a main terminal); the electronic price tag is used as a slave end to broadcast information in a Bluetooth broadcasting mode, so that the electronic price tag is always in an awakening state and has high power consumption; and after the electronic price tags are executed, the gateway device and the server cannot know whether the electronic price tags complete the operation states such as image brushing or price changing, the gateway device needs to wait for whether the electronic price tags complete the operation task all the time in the process of executing the operation task by the electronic price tags, and the operation process of executing the task by each electronic price tag takes half a minute or other certain time, so that the working efficiency is low when a large number of electronic price tags need to be subjected to data communication.
Referring to fig. 1, a system architecture diagram of an application scenario provided in an embodiment of the present application is shown. The system includes a server, a gateway device and a plurality of electronic price tags 12. The server communicates with the gateway device through a Message Queue Telemetry Transport (MQTT) Protocol or a Hypertext Transfer Protocol (HTTP) Protocol, and sends a data transmission instruction to the gateway device. The gateway device may include a plurality of communication masters, with the electronic price tags acting as communication slaves. The gateway device and the plurality of electronic price tags establish wireless communication respectively, for example, the gateway device wakes up a target electronic price tag in the plurality of electronic price tags in a 2.4g near field wireless communication mode, the target electronic price tag is switched to a Bluetooth low-power consumption working mode, and sends handshake broadcast to the gateway device; after the gateway device scans the handshake broadcast of the target electronic price tag through the Bluetooth communication module, the gateway device establishes communication connection with the target electronic price tag and transmits operation command data to the target electronic price tag. And after receiving the operation command data, the target electronic price tag is disconnected with the gateway equipment, so that the gateway equipment can continue to awaken other electronic price tags and perform data transmission with the other electronic price tags. And after the target electronic price tag executes the operation task, sending a reply broadcast to the gateway equipment. And after scanning the reply broadcast, the gateway equipment determines the running state of the target electronic price tag and feeds back the running state information of the target electronic price tag to the server.
According to the embodiment of the application, the power consumption of the slave-end electronic price tag can be reduced through awakening and handshaking broadcasting; meanwhile, the working efficiency of the main-end gateway equipment can be improved through the reply broadcast.
The following describes the flow steps of the broadcast communication method provided in the present application by using specific embodiments.
Referring to fig. 2, a flowchart of a broadcast communication method according to an embodiment of the present application is schematically shown. The execution subject of the method may be the gateway device (master device) 11 in fig. 1, including the following steps:
in step S201, when receiving a data transmission instruction sent by a server, a gateway device sends a wake-up data packet to a plurality of electronic price tags, where the wake-up data packet is used to wake up a target electronic price tag in the plurality of electronic price tags.
In some embodiments, as shown in fig. 1, the gateway device may correspond to a plurality of electronic price tags as a primary end in data communication with the electronic price tags. The gateway equipment is provided with a plurality of wireless communication modules, and data transmission is carried out between the gateway equipment and the electronic price tags through the wireless communication modules. The wireless communication module may include a bluetooth module, a Wi-Fi module, and the like.
Illustratively, the server actively sends a data transmission instruction to the gateway device, and instructs the gateway device to wake up the target electronic price tag corresponding to the data transmission instruction. Before the gateway equipment wakes up the electronic price tag, the electronic price tag is always in a low-power consumption dormant state; the gateway device sends the awakening data packet in a wireless communication mode through a short distance of 2.4g, and the electronic price tag acquires the awakening data packet in a wireless communication mode.
The wake-up data packet includes identity information of the electronic price tag, and the identity information may be an identity identification number or address information. After the electronic price tag is obtained into the awakening data packet, analyzing the awakening data packet to determine whether the identity information is consistent with the awakening data packet or whether the awakening data packet contains the identity information of the awakening data packet, and if the identity information is consistent with or contained in the awakening data packet, determining the awakening data packet as a target electronic price tag; the target electronic price tag is switched into a Bluetooth mode, and a first data packet is broadcasted to the gateway equipment through a Bluetooth module and comprises a static information frame and state operation information; the static information includes identity information of the target electronic price tag and the state run information includes state information confirming that it has been awakened.
It should be noted that the wake-up packet may include identity information of one or more electronic price tags, and wake up one or more electronic price tags at the same time.
In addition, as shown in the example of handshake broadcasting shown in fig. 4, the master of the gateway device sends a 2.4g wake-up signal to wake up the target electronic price tag of the slave, and after the target electronic price tag is used as a wake-up signal received by the slave to the master (the wake-up signal includes the local area network MAC address of the slave), the gateway device switches to the bluetooth operating mode with low power consumption, and notifies the host of the wake-up result in a handshake broadcasting manner. Before waking up the slave-end electronic price tag, in order to reduce power consumption, the electronic price tag is always in a low-power consumption dormant state and is in a wireless working mode, namely, a wireless module or a wireless transceiver is used for acquiring a wake-up data packet sent by the master-end gateway device; after awakening, the slave-end target electronic equipment is switched to a low-power-consumption Bluetooth working mode, and compared with the situation that the slave-end electronic price tag is always in a broadcast state, a large amount of power consumption of the electronic price tag is saved.
Step S202, after scanning a first data packet of a target electronic price tag broadcast, the gateway device establishes communication connection with the target electronic price tag.
In some embodiments, after scanning the first data packet broadcast by the target electronic price tag, the scanning module of the gateway device confirms that the target electronic price tag is awakened, and establishes a communication connection with one or more target electronic price tags through the bluetooth module.
It can be understood that, through the way of waking up and handshaking broadcast, after the master end and the slave end respectively confirm the identity information or the address information of the other party, the bluetooth communication connection can be established through the bluetooth module.
And step S203, the gateway equipment sends an operation command data packet to the target electronic price tag according to the data transmission instruction, wherein the operation command data packet is used for indicating the target electronic price tag to execute an operation task.
In some embodiments, the data transmission instruction received by the gateway device includes identity information of the target electronic price tag, picture data to be transmitted, an operation instruction and the like. The gateway equipment wakes up one or more target electronic price tags corresponding to the identity information according to the data transmission instruction, establishes communication connection with the one or more target electronic price tags and transmits an operation command data packet to the one or more target electronic price tags. The operation command data packet can comprise picture data to be transmitted, operation instructions and other information to indicate the target electronic price tag to execute the operation task.
The operation task of the target electronic price tag can be operations of drawing, modifying commodity price or updating commodity information and the like according to the picture data and the operation instruction.
In some embodiments, after the gateway device sends the operation command packet to the target electronic price tag according to the data transmission instruction, the method further comprises:
the gateway device disconnects the communication connection with the target electronic price tag, wakes up the next target electronic price tag and establishes communication connection with the next target electronic price tag.
In some embodiments, the gateway device disconnects the communication connection with the current target electronic price tag after sending the operation command data packet to the current target electronic price tag; according to the data transmission instructions of the server for other electronic price tags, other target electronic price tags are awakened, communication connection is established with the target electronic price tags, operation command data packets are transmitted, the gateway device does not need to wait for the operation task execution process of the current target electronic price tag, and the communication efficiency of the device is improved.
For example, the data transmission instruction sent by the server to the gateway device may include identity information of a plurality of electronic price tags; the gateway device may also receive a plurality of different data transmission instructions, and the plurality of different data transmission instructions may be for the same electronic price tag or for different electronic price tags.
Step S204, the gateway device obtains a second data packet broadcasted by the target electronic price tag through scanning, wherein the second data packet is information broadcasted after the target electronic price tag completes the operation task.
In some embodiments, the target electronic price tag broadcasts the second data packet by replying to the broadcast after the operation task is performed. The second data packet may include a static information frame and a status run frame; the static information frame is information representing the target electronic price tag identity, and can be an identity number or address information and the like; the state operation frame may represent information for completing an operation task or information for executing a task, such as completion of a drawing task, completion of price modification, or failure of updating commodity information.
Referring to the exemplary diagram of the reply broadcast shown in fig. 5, after the gateway device at the master wakes up the electronic price tag at the slave, a bluetooth communication connection is established with the electronic price tag. And after receiving the operation command data packet sent by the gateway equipment, the electronic price tag is disconnected from the communication connection with the gateway equipment, so that the gateway equipment can conveniently carry out data communication with other electronic price tags. And the electronic price tag executes the operation task in the operation command data packet, and broadcasts a second data packet to the gateway equipment in a reply broadcasting mode after the operation task is completed. And after the second data packet is scanned, the gateway equipment determines the task execution condition of the electronic price tag.
It should be noted that, because the electronic price tag needs to spend a certain time when executing the operation task, for example, a half-minute time may be needed in the process of drawing, after the electronic price tag completes the specified task, the gateway device is notified in a reply broadcast manner, and it is not necessary for the gateway device to wait for completion of execution or not in the process of executing the operation task by the electronic price tag, and the gateway device can operate other electronic price tags in this time period, thereby greatly improving the communication efficiency of the gateway device.
In some embodiments, after the gateway device obtains the second data packet of the target electronic price tag broadcast by scanning, the method further comprises:
and the gateway equipment sends the running state information of the target electronic price tag to the server according to the second data packet.
In some embodiments, the master-end gateway device feeds back the situation that the slave-end electronic price tag executes the operation task to the server, so that a user can conveniently check the situation that the slave-end electronic price tag executes the task and the current operation state.
According to the embodiment of the application, when receiving a data transmission instruction sent by a server, the gateway equipment sends a wake-up data packet to the plurality of electronic price tags so as to wake up a target electronic price tag in the plurality of electronic price tags; after a first data packet of a target electronic price tag broadcast is scanned, the gateway equipment establishes communication connection with the target electronic price tag; therefore, the electronic price tag does not need to be broadcasted all the time, and the power consumption of the electronic price tag is reduced; according to the data transmission instruction, the gateway equipment sends an operation command data packet to the target electronic price tag to indicate the target electronic price tag to execute an operation task; after the target electronic price tag finishes the operation task, the second data packet broadcasted by the target electronic price tag is obtained through scanning, so that the completion of the target electronic price tag task can be determined, the process that the gateway equipment waits for the target electronic price tag to execute the operation task all the time is not needed, the processing resources of the gateway equipment are saved, and the communication efficiency is improved.
Referring to fig. 3, a flow chart of a broadcast communication method according to another embodiment of the present application is shown, and an execution subject of the method may be any one or more of the electronic price tags in fig. 1. Based on the same principle as the steps in fig. 2, the method flow comprises the following steps:
step S301, after receiving the wake-up data packet sent by the gateway device, the target electronic price tag broadcasts a first data packet to the gateway device, where the first data packet is used to notify the gateway device that the target electronic price tag is currently in a wake-up state.
Step S302, the target electronic price tag establishes communication connection with the gateway device, and receives an operation command data packet sent by the gateway device according to a data transmission instruction, wherein the data transmission instruction is information sent by the server to the gateway device.
Step S303, the target electronic price tag executes an operation task according to the operation command data packet, and broadcasts a second data packet to the gateway device after the operation task is completed, wherein the second data packet is used for informing the gateway device of the running state information of the target electronic price tag.
In some embodiments, the target electronic price tag performs the operation task according to the operation command data packet, including:
and updating the content to be displayed by the target electronic price tag according to the picture information and the operation command in the operation command data packet.
The contents to be displayed include contents such as picture information, commodity price information, and commodity specification information.
In some embodiments, the method further comprises:
through a single timer, the target electronic price tag broadcasts a plurality of data frames in the first data packet according to a first preset time sequence, or broadcasts a plurality of data frames in the second data packet according to a second preset time sequence.
In some embodiments, a flow diagram of a single timer broadcast is shown in FIG. 6. In a conventional broadcasting process, a plurality of timers are set to time broadcast frames with different intervals. According to the method and the device, the single timer is used for controlling the broadcasting of a plurality of broadcasting frames, so that hardware resources are greatly saved.
It should be noted that, in the above handshake broadcasting and reply broadcasting processes, a single timer may be used to broadcast multiple data frames. The specific timing flow by the single timer comprises the following steps:
step S601, initializing a plurality of broadcast frames, and determining a time interval corresponding to each broadcast frame;
step S602, during the first broadcast, a plurality of broadcast frames are broadcast simultaneously, and the minimum time interval is determined as the timing time of the timer;
step S603, when the timer counts the timing time, determining one or more broadcast frames to be broadcast firstly next time and the shortest interval time length required by the next broadcast, and taking the shortest interval time length required as the timing time of the timer again;
step S604, when the timer counts the timing time, broadcasting one or more broadcast frames to be broadcasted firstly;
step S605, judging whether the broadcasting needs to be stopped; if not, continuing to execute the step S603 and the subsequent steps; if yes, stopping broadcasting.
Illustratively, both during the handshake broadcast and the reply broadcast include a static information frame and a status running frame, and there may be multiple other data frames. The description of the single timer timing is made by taking two broadcast frames, a static information frame (broadcast frame a) and a status operation frame (broadcast frame B), as an example. Assuming that the broadcast time interval of the broadcast frame a is 50 milliseconds, the time interval of the broadcast frame B is 80 milliseconds, when broadcasting for the first time, two broadcast frames are broadcast simultaneously, after the broadcast is finished, the minimum time interval is used as the timing time of the timer, namely 50 milliseconds, after the timer times 50 milliseconds, the next broadcast frame a is broadcast, while continuing to time for 30 milliseconds, the next broadcast frame B is broadcast, while continuing to time for 20 milliseconds, the next broadcast frame a is broadcast, while timing for 50 milliseconds, the next broadcast frame a is broadcast, and then timing for 10 milliseconds, the next broadcast frame B is broadcast, and according to the data frames to be broadcast, the single-timer timing broadcast is performed through calculation in turn until all the broadcast frames are completed within the preset time period.
In addition, the static information frame and the state operation frame have different broadcast contents and carry different information which cannot be broadcast by one broadcast, and because the maximum content of a single broadcast is only 31 bytes, which is far from enough, and the broadcast intervals and modes of the two broadcast frames are different, the two broadcast frames are respectively broadcast at fixed time by a single timer; the single timer broadcast approach may also be adapted to broadcast more information so that multiple broadcast frames may be broadcast.
By the embodiment of the application, the length of the broadcast data can be increased, and when the broadcast data is more, the broadcast data can be broadcast in a plurality of broadcast frames, so that the use of a timer of hardware can be saved, and resources are saved.
Fig. 7 is an exemplary diagram of an interaction flow provided in the embodiment of the present application, and a process of implementing the interaction flow of each device in an actual application scenario in the embodiment of the present application is described in correspondence to the system architecture in fig. 1. Based on the same implementation principle as fig. 2 and 3, no further description is provided here. The interaction flow comprises the following steps:
1. the server sends a data transmission instruction to the gateway equipment;
2. the gateway equipment sends a wake-up data packet to the electronic price tag;
3. the target electronic price tag broadcasts a first data packet to the gateway equipment;
4. the gateway equipment establishes communication connection with the target electronic price tag and sends an operation command data packet to the target electronic price tag;
5. the target electronic price tag executes an operation task;
6. the target electronic price tag broadcasts a second data packet to the gateway equipment;
7. and the gateway equipment sends the running state information of the electronic price tag to the server.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
According to the embodiment of the application, when receiving a data transmission instruction sent by a server, the gateway equipment sends a wake-up data packet to the plurality of electronic price tags so as to wake up a target electronic price tag in the plurality of electronic price tags; after a first data packet of a target electronic price tag broadcast is scanned, the gateway equipment establishes communication connection with the target electronic price tag; therefore, the electronic price tag does not need to be broadcasted all the time, and the power consumption of the electronic price tag is reduced; according to the data transmission instruction, the gateway equipment sends an operation command data packet to the target electronic price tag to indicate the target electronic price tag to execute an operation task; after the target electronic price tag finishes the operation task, the second data packet broadcasted by the target electronic price tag is obtained through scanning, so that the completion of the target electronic price tag task can be determined, the process that the gateway equipment waits for the target electronic price tag to execute the operation task all the time is not needed, the processing resources of the gateway equipment are saved, and the communication efficiency is improved.
Corresponding to the broadcast communication method described in the foregoing embodiment, an embodiment of the present application further provides a broadcast communication apparatus, including:
the system comprises a first sending unit, a second sending unit and a control unit, wherein the first sending unit is used for sending a wake-up data packet to a plurality of electronic price tags when receiving a data transmission instruction sent by a server, and the wake-up data packet is used for waking up a target electronic price tag in the plurality of electronic price tags;
the communication connection unit is used for establishing communication connection with the target electronic price tag after scanning a first data packet broadcasted by the target electronic price tag;
a second sending unit, configured to send an operation command data packet to the target electronic price tag according to the data transmission instruction, where the operation command data packet is used to instruct the target electronic price tag to perform an operation task;
and the scanning unit is used for obtaining a second data packet broadcasted by the target electronic price tag through scanning, wherein the second data packet is information broadcasted after the target electronic price tag completes an operation task.
Corresponding to the broadcast communication method described in another embodiment above, an embodiment of the present application further provides a broadcast communication apparatus, including:
the first broadcasting unit is used for broadcasting a first data packet to the gateway equipment after receiving a wake-up data packet sent by the gateway equipment, wherein the first data packet is used for informing the gateway equipment that the target electronic price tag is in a wake-up state currently;
the receiving unit is used for establishing communication connection with the gateway equipment and receiving an operation command data packet sent by the gateway equipment according to a data transmission instruction, wherein the data transmission instruction is information sent to the gateway equipment by a server;
and the second broadcasting unit is used for executing an operation task according to the operation command data packet and broadcasting a second data packet to the gateway equipment after the operation task is finished, wherein the second data packet is used for informing the gateway equipment of the running state information of the target electronic price tag.
According to the embodiment of the application, when receiving a data transmission instruction sent by a server, the gateway equipment sends a wake-up data packet to the plurality of electronic price tags so as to wake up a target electronic price tag in the plurality of electronic price tags; after a first data packet of a target electronic price tag broadcast is scanned, the gateway equipment establishes communication connection with the target electronic price tag; therefore, the electronic price tag does not need to be broadcasted all the time, and the power consumption of the electronic price tag is reduced; according to the data transmission instruction, the gateway equipment sends an operation command data packet to the target electronic price tag to indicate the target electronic price tag to execute an operation task; after the target electronic price tag finishes the operation task, the second data packet broadcasted by the target electronic price tag is obtained through scanning, so that the completion of the target electronic price tag task can be determined, the process that the gateway equipment waits for the target electronic price tag to execute the operation task all the time is not needed, the processing resources of the gateway equipment are saved, and the communication efficiency is improved.
It should be noted that, for the information interaction, execution process, and other contents between the above-mentioned devices/units, the specific functions and technical effects thereof are based on the same concept as those of the embodiment of the method of the present application, and specific reference may be made to the part of the embodiment of the method, which is not described herein again.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The embodiments of the present application further provide a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the computer program implements the steps in the above-mentioned method embodiments.
The embodiments of the present application provide a computer program product, which when running on a mobile terminal, enables the mobile terminal to implement the steps in the above method embodiments when executed.
Fig. 8 is a schematic structural diagram of a gateway device 8 according to an embodiment of the present application. As shown in fig. 8, the gateway apparatus 8 of this embodiment includes: at least one processor 80 (only one shown in fig. 8), a memory 81, and a computer program 82 stored in the memory 81 and operable on the at least one processor 80, the processor 80 implementing the steps in any of the various broadcast communication method embodiments described above when executing the computer program 82. The gateway device 8 further comprises a wireless transceiver 83, wherein the wireless transceiver 83 is adapted for data communication with the electronic price tag.
The gateway device 8 may be a desktop computer, a notebook, a palm computer, a cloud server, or other computing device. The gateway device 8 may include, but is not limited to, a processor 80, a memory 81. Those skilled in the art will appreciate that fig. 8 is merely an example of the gateway device 8, and does not constitute a limitation of the gateway device 8, and may include more or less components than those shown, or combine some of the components, or different components, such as input output devices, network access devices, etc.
The Processor 80 may be a Central Processing Unit (CPU), and the Processor 80 may be other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 81 may in some embodiments be an internal storage unit of the gateway device 8, such as a hard disk or a memory of the gateway device 8. The memory 81 may also be an external storage device of the gateway device 8 in other embodiments, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are provided on the gateway device 8. Further, the memory 81 may also include both an internal storage unit and an external storage device of the gateway device 8. The memory 81 is used for storing an operating system, an application program, a BootLoader (BootLoader), data, and other programs, such as program codes of the computer program. The memory 81 may also be used to temporarily store data that has been output or is to be output.
Fig. 9 is a schematic structural diagram of an electronic price tag 9 according to an embodiment of the present application. As shown in fig. 9, the electronic price tag 9 of this embodiment includes: at least one processor 90 (only one shown in fig. 9), a memory 91, and a computer program 92 stored in the memory 91 and executable on the at least one processor 90, the processor 90 implementing the steps in any of the various broadcast communication method embodiments described above when executing the computer program 92; the electronic price tag 9 further comprises a wireless transceiver 93, wherein the wireless transceiver 93 is for data communication with a gateway device.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, all or part of the processes in the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium and can implement the steps of the embodiments of the methods described above when the computer program is executed by a processor. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer readable medium may include at least: any entity or device capable of carrying computer program code to a photographing apparatus/terminal apparatus, a recording medium, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), an electrical carrier signal, a telecommunications signal, and a software distribution medium. Such as a usb-disk, a removable hard disk, a magnetic or optical disk, etc. In certain jurisdictions, computer-readable media may not be an electrical carrier signal or a telecommunications signal in accordance with legislative and patent practice.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus/device and method may be implemented in other ways. For example, the above-described apparatus/device embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. A broadcast communication method, applied to a gateway device, the method comprising:
when a data transmission instruction sent by a server is received, sending a wake-up data packet to a plurality of electronic price tags, wherein the wake-up data packet is used for waking up a target electronic price tag in the plurality of electronic price tags;
after a first data packet broadcasted by the target electronic price tag is scanned, establishing communication connection with the target electronic price tag;
according to the data transmission instruction, an operation command data packet is sent to the target electronic price tag, and the operation command data packet is used for indicating the target electronic price tag to execute an operation task;
and obtaining a second data packet broadcasted by the target electronic price tag through scanning, wherein the second data packet is information broadcasted after the target electronic price tag completes the operation task.
2. The method of claim 1, wherein after sending an operation command packet to the target electronic price tag in accordance with the data transfer instruction, the method further comprises:
and disconnecting the communication connection with the target electronic price tag, waking up the next target electronic price tag and establishing communication connection with the next target electronic price tag.
3. The method of claim 1, wherein after obtaining the second data packet of the target electronic price tag broadcast by scanning, the method further comprises:
and sending the running state information of the target electronic price tag to the server according to the second data packet.
4. A broadcast communication method, for application to a target electronic price tag, the method comprising:
after receiving a wake-up data packet sent by gateway equipment, broadcasting a first data packet to the gateway equipment, wherein the first data packet is used for informing the gateway equipment that the target electronic price tag is in a wake-up state currently;
establishing communication connection with the gateway equipment, and receiving an operation command data packet sent by the gateway equipment according to a data transmission instruction, wherein the data transmission instruction is information sent to the gateway equipment by a server;
and executing an operation task according to the operation command data packet, and broadcasting a second data packet to the gateway equipment after the operation task is completed, wherein the second data packet is used for informing the gateway equipment of the running state information of the target electronic price tag.
5. The method of claim 4, wherein the method further comprises:
and broadcasting a plurality of data frames in the first data packet according to a first preset time sequence or broadcasting a plurality of data frames in the second data packet according to a second preset time sequence through a single timer.
6. The method of claim 4, wherein performing an operation task based on the operation command packet comprises:
and updating the content to be displayed according to the picture information and the operation command in the operation command data packet.
7. A broadcast communication system, the system comprising:
the server is used for sending a data transmission instruction to the gateway equipment;
the gateway equipment is used for receiving the data transmission instruction sent by the server, sending a wake-up data packet to the electronic price tag, establishing communication connection with the electronic price tag and sending an operation command data packet to the electronic price tag;
and the target electronic price tag is used for broadcasting the first data packet after receiving the awakening data packet and broadcasting the second data packet after receiving the operation command data packet and executing the operation task.
8. A gateway device, characterized in that the gateway device comprises a wireless transceiver for data communication with an electronic price tag, a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the method according to any of claims 1 to 3 when executing the computer program.
9. An electronic price tag comprising a wireless transceiver for data communication with a gateway device, a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the method of any of claims 4 to 6 when executing the computer program.
10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1 to 3 or 4 to 6.
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