Electronic price tag system, accessory, circuit and working method

Abstract

The invention discloses an electronic price tag system, an accessory, a circuit and a working method, and the system comprises a goods shelf layer edge accessory which comprises an accessory main body used for installing a plurality of electronic price tags; the accessory NFC antenna units are used for transmitting energy and task instructions for the installed price tags; the antenna selection circuit is selected to be connected with any antenna unit; the goods shelf layer edge main control circuit is used for controlling the antenna selection circuit to select to be connected with any antenna unit, so that the main control circuit provides preset working electric quantity for price tags at corresponding positions of the antenna units to realize different tasks through energy emitted by the connected antenna units; and the main control circuit is in wireless communication with the price tag at the position through the switched-on antenna unit, so that the price tag realizes different tasks according to different task instructions. According to the invention, a brand new electronic price tag system architecture, a power supply method and a communication scheme can be provided, the low-carbon electronic price tag work is realized, the interference of a wireless channel is reduced, and the communication efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic price tags, and in particular to an electronic price tag system, accessories, circuits and working methods. Background Art

[0002] This section aims to provide background or context for the embodiments of the present invention described in the claims. The description herein is not admitted to be prior art merely by including it in this section.

[0003] Currently, in addition to displaying ordinary information, supermarket electronic shelf labels can also be used for many applications, such as fast picking, out-of-stock management, fast inventory, and human-computer interaction with users, etc. When the electronic price tag system works, each electronic price tag has an independent radio frequency circuit and can communicate directly with the base station through the radio frequency circuit. When the number of electronic price tags in the store exceeds a certain amount, for example, 50,000, the interference will be very serious, resulting in a decrease in communication efficiency. At the same time, each electronic price tag is powered by an independent battery. In fact, not every price tag needs to update data and refresh the screen every day, and the battery consumption speeds are inconsistent. When some electronic price tags are updated relatively frequently, resulting in the batteries being consumed prematurely, the work of finding these price tags and replacing the batteries is cumbersome, and this method is not environmentally friendly enough. Summary of the Invention

[0004] Embodiments of the present invention provide an electronic price tag system, including: a shelf layer edge accessory and a shelf layer edge main control circuit; to provide a new electronic price tag system architecture, power supply method and communication scheme, realize low-carbon operation of electronic price tags, reduce interference in the wireless channel, and improve communication efficiency. The system includes: The shelf layer edge accessory includes: an accessory main body arranged along the shelf edge for installing a plurality of electronic price tags; a plurality of accessory NFC antenna units arranged along the accessory main body for transmitting energy and task instructions to the installed electronic price tags when the antenna selection circuit is connected to any accessory NFC antenna unit; and an antenna selection circuit for selecting to connect to any accessory NFC antenna unit. The shelf layer edge main control circuit is connected to the antenna selection circuit and is used to control the antenna selection circuit to select to connect to any accessory NFC antenna unit, so that the shelf layer edge main control circuit provides a preset working power for the electronic price tags at the corresponding position of the accessory NFC antenna unit through the connected accessory NFC antenna unit to realize different tasks, so that the shelf layer edge main control circuit performs wireless communication with the electronic price tags at this position through the connected accessory NFC antenna unit, so that the electronic price tags realize different tasks according to different task instructions.

[0005] An embodiment of the present invention further provides a shelf layer edge fitting, which is used to provide a brand-new electronic price tag system architecture, power supply method and communication scheme, so as to realize low-carbon operation of electronic price tags, reduce interference in the wireless channel, and improve communication efficiency. The shelf layer edge fitting includes: A fitting main body arranged along the shelf edge, which is used to install multiple electronic price tags; A plurality of fitting NFC antenna units arranged along the fitting main body, which are used to transmit energy and task instructions to the installed electronic price tags when the antenna selection circuit is connected to any fitting NFC antenna unit; And an antenna selection circuit for selecting to connect to any fitting NFC antenna unit; the antenna selection circuit is used to select to connect to any fitting NFC antenna unit under the control of the shelf layer edge main control circuit; the shelf layer edge main control circuit is used to control the antenna selection circuit to select to connect to any fitting NFC antenna unit, so that the shelf layer edge main control circuit provides a preset working power for the electronic price tag at the corresponding position of the connected fitting NFC antenna unit to implement different tasks by transmitting energy through the connected fitting NFC antenna unit, so that the shelf layer edge main control circuit performs wireless communication with the electronic price tag at this position through the connected fitting NFC antenna unit, so that the electronic price tag implements different tasks according to different task instructions.

[0006] An embodiment of the present invention further provides a shelf layer edge main control circuit, which is used to provide a brand-new electronic price tag system architecture, power supply method and communication scheme, so as to realize low-carbon operation of electronic price tags, reduce interference in the wireless channel, and improve communication efficiency. The shelf layer edge main control circuit includes: A battery unit, which is used to provide electric energy for the entire electronic price tag system; An NFC card reader, which is connected to the antenna selection circuit and the battery unit, and is used to provide a preset working power for the electronic price tag at the corresponding position of the connected fitting NFC antenna unit to implement different tasks by transmitting energy through the connected fitting NFC antenna unit when the antenna selection circuit selects to connect to any fitting NFC antenna unit, and performs wireless communication with the electronic price tag at this position through the connected fitting NFC antenna unit, so that the electronic price tag implements different tasks according to different task instructions; A main control wireless communication chip, which is connected to the NFC card reader, the battery unit and the antenna selection circuit, and is used to control the antenna selection circuit to connect to any fitting NFC antenna unit, and send different task instructions to the connected fitting NFC antenna unit through the NFC card reader.

[0007] An embodiment of the present invention further provides a working method of a shelf layer edge main control circuit, which is used to provide a brand-new electronic price tag system architecture, power supply method and communication scheme, so as to realize low-carbon operation of electronic price tags, reduce interference in the wireless channel, and improve communication efficiency. The working method includes: The main control wireless communication chip controls the antenna selection circuit to connect to any accessory NFC antenna unit; the main control wireless communication chip is connected to the NFC reader, the battery unit and the antenna selection circuit, the battery unit is used to provide electrical energy for the entire electronic price tag system, and the accessory NFC antenna unit is used to transmit energy and task instructions to the installed electronic price tag when the antenna selection circuit is connected to any accessory NFC antenna unit; When the NFC reader selects to connect to any accessory NFC antenna unit through the antenna selection circuit, it transmits energy through the connected accessory NFC antenna unit to provide a preset working power for the electronic price tags at the corresponding positions of the accessory NFC antenna unit to perform different tasks; After the main control wireless communication chip provides the working power for the electronic price tags at the corresponding positions of the accessory NFC unit, it sends different task instructions to the NFC reader; The NFC reader performs wireless communication with the electronic price tags at this position through the connected accessory NFC antenna unit according to the different task instructions, so that the electronic price tags can perform different tasks according to the different task instructions.

[0008] An embodiment of the present invention also provides a computer device, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the computer program, it implements the working method of the above-mentioned shelf layer edge main control circuit.

[0009] An embodiment of the present invention also provides a computer-readable storage medium. The computer-readable storage medium stores a computer program. When the computer program is executed by a processor, it implements the working method of the above-mentioned shelf layer edge main control circuit.

[0010] An embodiment of the present invention also provides a computer program product. The computer program product includes a computer program. When the computer program is executed by a processor, it implements the working method of the above-mentioned shelf layer edge main control circuit.

[0011] The beneficial technical effects of the electronic price tag system, accessories, circuits and working solutions provided by the embodiments of the present invention are: the shelf layer edge main control circuit controls the antenna selection circuit to select and connect to any accessory NFC antenna unit, so that the shelf layer edge main control circuit transmits energy through the connected accessory NFC antenna unit to provide a preset working power for the electronic price tags at the corresponding positions of the accessory NFC antenna unit to perform different tasks, and enables the shelf layer edge main control circuit to perform wireless communication with the electronic price tags at this position through the connected accessory NFC antenna unit, so that the electronic price tags can perform different tasks according to different task instructions. It can provide a new electronic price tag system architecture, power supply method and communication solution, realize low-carbon operation of electronic price tags, reduce interference in wireless channels, and improve communication efficiency. Description of the Drawings

[0012] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. In the drawings: Figure 1 Structural schematic of the electronic price tag system in an embodiment of the present invention Figure 1 ; Figure 2 Structural schematic of the electronic price tag system in an embodiment of the present invention Figure 2 ; Figure 3 Structural schematic of the electronic price tag system in an embodiment of the present invention Figure 3 ; Figure 4 Schematic diagram of the electronic price tag data structure in an embodiment of the present invention; Figure 5 Schematic diagram of the structure of the shelf layer edge fitting in an embodiment of the present invention; Figure 6 Schematic diagram of the structure of the shelf layer edge main control circuit in an embodiment of the present invention; Figure 7 Schematic flow chart of the working method of the shelf layer edge main control circuit in an embodiment of the present invention; Figure 8 Schematic flow chart of the working method of the shelf layer edge main control circuit in another embodiment of the present invention; Figure 9 Schematic flow chart of the working method of the shelf layer edge main control circuit in another embodiment of the present invention; Figure 10 Schematic flow chart of the commodity positioning method based on the shelf layer edge main control circuit in another embodiment of the present invention; Figure 11 Schematic diagram of the computer device structure in an embodiment of the present invention; Reference numerals: 1, shelf layer edge fitting; 11, fitting main body; 12, fitting NFC antenna unit; 13, antenna selection circuit; 131, selection switch; 2, electronic price tag; 3, shelf layer edge main control circuit; 31, main control wireless communication chip; 32, battery unit; 33, main control circuit NFC antenna unit; 34, NFC tag chip; 35, NFC card reader; 4, power supply; 5, electronic price tag background server; 6, base station; 7, commodity; 8, handheld terminal. Detailed implementation manners

[0013] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer and more understandable, the following further elaborates on the embodiments of the present invention with reference to the accompanying drawings. Herein, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but do not limit the present invention.

[0014] In the technical solutions of this application, the acquisition, storage, use, processing, etc. of data all comply with the relevant regulations of laws and regulations.

[0015] Figure 1 Structural schematic of the electronic price tag system in the embodiments of the present invention Figure 1 , as Figure 1 shown, the electronic price tag system provided by the embodiments of the present invention may include: shelf layer edge accessories 1, electronic price tags 2, shelf layer edge main control circuits 3, electronic price tag back-end servers 5, base stations (APs) 6, and handheld terminals 8. Among them: The electronic price tag back-end server 5 is responsible for business processing, including binding products to electronic price tags, controlling the registration of electronic price tags to access the network, updating data, flashing light services, etc., and is responsible for managing the relationship between the store and the base station (AP). The base station is responsible for wireless communication with the electronic price tag and transmitting instructions and data between the electronic price tag back-end server 5 and the electronic price tag 2. In the embodiments of the present invention, the shelf layer edge accessories 1, the shelf layer edge main control circuits 3, and related technical solutions are different from the circuits of traditional electronic price tag systems. Through the power supply method and communication scheme implemented by this electronic price tag system, it can work in a more low-carbon manner, reduce interference in the wireless channel, and automatically generate product display data. The following is a detailed introduction.

[0016] Embodiment 1: In this embodiment, the electronic price tag is not powered by a battery.

[0017] Figure 2 Structural schematic of the electronic price tag system in the embodiments of the present invention Figure 2 , as Figure 2 shown, the system includes: shelf layer edge accessories and shelf layer edge main control circuits; among them: The shelf layer edge accessories include: an accessory main body 11 arranged along the shelf edge, which is used to install multiple electronic price tags 2; multiple accessory NFC antenna units 12 arranged along the accessory main body, which are used to transmit energy and task instructions to the installed electronic price tags when the antenna selection circuit 13 is connected to any accessory NFC antenna unit 12; and an antenna selection circuit 13 for selecting and connecting to any accessory NFC antenna unit; The shelf - layer edge main control circuit 3 includes: being connected to the antenna selection circuit 13, and being used for controlling the antenna selection circuit 13 to select to connect with any accessory NFC antenna unit 12, so that the shelf - layer edge main control circuit 3 provides a preset working power supply for the electronic price tag at the corresponding position of the accessory NFC antenna unit through the connected accessory NFC antenna unit to realize different tasks, and enables the shelf - layer edge main control circuit 3 to perform wireless communication with the electronic price tag at this position through the connected accessory NFC antenna unit, so that the electronic price tag realizes different tasks according to different task instructions.

[0018] The electronic price tag system provided by the embodiment of the present invention: through the shelf - layer edge main control circuit, controls the antenna selection circuit of the shelf - layer edge accessory (the electronic price tag installation device at the shelf - layer edge) to work, connects any accessory NFC antenna unit, and transmits energy and task instructions to the installed electronic price tag, so that the shelf - layer edge main control circuit provides a preset working power supply for the electronic price tag at the corresponding position of the accessory NFC antenna unit through the connected accessory NFC antenna unit to realize different tasks, enables the shelf - layer edge main control circuit to perform wireless communication with the electronic price tag at this position through the connected accessory NFC antenna unit, so that the electronic price tag realizes different tasks according to different task instructions, can provide a brand - new electronic price tag system architecture, power supply method and communication scheme, realize low - carbon operation of the electronic price tag, reduce the interference of the wireless channel, and improve the communication efficiency. The following is a detailed introduction to this system.

[0019] Specifically, when implemented, the shelf - layer edge accessory includes a plurality of laid - out NFC antenna units, that is, accessory NFC antenna units, and an antenna selection circuit for selecting these antenna units. The shelf - layer edge main control circuit includes a main control wireless communication chip for selecting and controlling the antenna selection circuit, as well as an NFC card reader and an NFC tag chip. The ESL is an electronic price tag, which includes a display screen, as well as an NFC antenna and a main control circuit. It can receive the electric energy transmitted by the shelf - layer edge accessory through the NFC antenna, and can also communicate with the shelf - layer edge main control circuit in an NFC manner. The electronic price tag adopts an electronic paper display technology (Electronic Paper Display, EPD), which can display text and images like paper, and does not require continuous power supply, and only consumes electric energy when changing the display content, etc.

[0020] In one embodiment, the electronic price tag is not battery-powered. The electrical energy for each of its operations comes from the energy transmitted by the accessory NFC antenna unit on the edge fitting of the shelf layer received by its own NFC antenna. Therefore, precisely controlling the energy output by the NFC card reader of the main control circuit on the edge of the shelf layer to only a specific one of the multiple accessory NFC antenna units on the edge fitting of the shelf layer is very important in this solution and is the key to ensuring the effective transmission and utilization of energy. For electronic price tags without communication and business requirements, no energy needs to be given. Since the position of the NFC antenna corresponding to the electronic price tag is known, the antenna selection circuit can accurately control the energy given to a certain NFC antenna, thereby efficiently controlling the energy provided to each price tag.

[0021] In one embodiment, the edge fitting of the shelf layer in the embodiment of the present invention is ensured to be adjustable in length to improve flexibility.

[0022] In one embodiment, as shown in FIG. 3, in the embodiment of the present invention, there can be 10 connection lines between the edge fitting of the shelf layer and the main control circuit on the edge of the shelf layer. There can be fixed-point clamping positions between the accessory main body and the accessory NFC antenna unit 12. Of course, the number of the above-mentioned connection lines and clamping points can be adjusted according to the actual scenario.

[0023] In one embodiment, the accessory NFC antenna units in the embodiment of the present invention are evenly distributed with fixed clamping positions.

[0024] In one embodiment, as Figure 3 shown, the antenna selection circuit 13 includes: a plurality of selection switches 131, and each selection switch 131 is connected to a plurality of accessory NFC antenna units 12; wherein, in a cascaded manner, one output terminal of the previous-stage selection switch is connected to the input terminal of the next-stage selection switch.

[0025] Specifically, when implemented, as Figure 3 shown, the antenna selection circuit is a circuit for selecting one from four as an example, or it can be one from eight, or more, and the number of control lines corresponding to the main control circuit on the edge of the shelf layer will change. The cascaded manner is that one output of the previous switch is connected to the input signal of the next-stage switch. In this way, along the strip structure of the edge fitting of the shelf layer, more antennas can be individually selected with fewer wiring numbers.

[0026] In one embodiment, as Figure 3 shown, the main control circuit 3 on the edge of the shelf layer may include: a battery unit 32 for providing electrical energy for the entire electronic price tag system; The NFC card reader 35, connected to the antenna selection circuit 13 and the battery unit 32, is configured to, when the antenna selection circuit 13 selects to connect to any accessory NFC antenna unit 12, transmit energy through the connected accessory NFC antenna unit to provide a preset working power for the electronic price tag at the corresponding position of the accessory NFC antenna unit to perform different tasks, and perform wireless communication with the electronic price tag at this position through the connected accessory NFC antenna unit, so that the electronic price tag can perform different tasks according to different task instructions; The main control wireless communication chip 31, connected to the NFC card reader 35, the battery unit 32 and the antenna selection circuit 13, is configured to control the antenna selection circuit 13 to connect to any accessory NFC antenna unit, and send different task instructions to the connected accessory NFC antenna unit through the NFC card reader 35.

[0027] In the embodiment of the present invention, the battery unit 32 can be connected to an external power supply 4, and the power supply 4 can be a solar module for supplying power to the battery unit 32.

[0028] In one embodiment, performing wireless communication with the electronic price tag at this position through the connected accessory NFC antenna unit may include: the NFC card reader 35 reads the identifier of the electronic price tag at the corresponding position of the connected accessory NFC antenna unit, and sends the task instruction to the electronic price tag at the corresponding position through the connected accessory NFC antenna unit.

[0029] In one embodiment, the shelf layer edge main control circuit 3 may further include: The main control circuit NFC antenna unit 33, connected to the battery unit 32; The NFC tag chip 34, connected to the main control circuit NFC antenna unit 33, the battery unit 32 and the main control wireless communication chip 31, is configured to cooperate with the main control circuit NFC antenna unit 33 to enable an external handheld terminal to obtain the identifier of the shelf layer edge main control circuit 3.

[0030] During specific implementation, in some scenarios, it is necessary to obtain the identifier of the shelf layer edge main control circuit 3. Of course, the NFC tag chip 34 cooperates with the main control circuit NFC antenna unit 33 to obtain the identifier of the new electronic price tag to be installed, the bound task instruction and the identifier of the electronic price tag to be located, etc. through the handheld terminal.

[0031] In the embodiment of the present invention, a shelf layer edge accessory is also provided as described in the following embodiments. Since the principle of solving the problem of this method is similar to that of the above-mentioned electronic price tag system, the implementation of this shelf layer edge accessory can refer to the implementation of the system, and the repeated parts will not be described again.

[0032] Figure 5 It is a schematic structural diagram of the shelf layer edge accessory in the embodiment of the present invention, as Figure 5As shown, the edge fitting of the shelf layer includes: A fitting main body 11 arranged along the edge of the shelf for installing a plurality of electronic price tags 2; A plurality of fitting NFC antenna units 12 arranged along the fitting main body, which are used to transmit energy and task instructions to the installed electronic price tags when the antenna selection circuit is connected to any fitting NFC antenna unit; And an antenna selection circuit 13 for selecting and connecting to any fitting NFC antenna unit 12; the antenna selection circuit is used to select and connect to any fitting NFC antenna unit 12 under the control of the main control circuit 3 at the edge of the shelf layer; the main control circuit 3 at the edge of the shelf layer is used to control the antenna selection circuit 13 to select and connect to any fitting NFC antenna unit 12, so that the main control circuit 3 at the edge of the shelf layer provides a preset working power through the connected fitting NFC antenna unit to the electronic price tag at the corresponding position of the fitting NFC antenna unit when realizing different tasks, and enables the main control circuit 3 at the edge of the shelf layer to perform wireless communication with the electronic price tag at this position through the connected fitting NFC antenna unit, so that the electronic price tag realizes different tasks according to different task instructions.

[0033] In an embodiment of the present invention, a main control circuit at the edge of the shelf layer is also provided as described in the following embodiments. Since the principle of the main control circuit at the edge of the shelf layer to solve problems is similar to that of the above-mentioned electronic price tag system, the implementation of the main control circuit at the edge of the shelf layer can refer to the implementation of the system, and the repeated parts will not be described again.

[0034] Figure 6 It is a schematic structural diagram of the main control circuit at the edge of the shelf layer in an embodiment of the present invention, as Figure 6 shown, in combination with Figure 3 shown, this circuit includes: A battery unit 32 for providing electrical energy for the entire electronic price tag system; An NFC card reader 35, connected to the antenna selection circuit 13 and the battery unit 32, which is used to provide a preset working power through the connected fitting NFC antenna unit to the electronic price tag at the corresponding position of the fitting NFC antenna unit when realizing different tasks, and perform wireless communication with the electronic price tag at this position through the connected fitting NFC antenna unit, so that the electronic price tag realizes different tasks according to different task instructions when the antenna selection circuit 13 selects and connects to any fitting NFC antenna unit; A main control wireless communication chip 31, connected to the NFC card reader 35, the battery unit 32 and the antenna selection circuit 13, which is used to control the antenna selection circuit 13 to connect to any fitting NFC antenna unit and send different task instructions to the connected fitting NFC antenna unit through the NFC card reader 35.

[0035] In one embodiment, as Figure 3As shown in the figure, the above-mentioned shelf layer edge main control circuit may further include: The main control circuit NFC antenna unit 33, which is connected to the battery unit 32; The NFC tag chip 34, which is connected to the main control circuit NFC antenna unit 33, the battery unit 32 and the main control wireless communication chip 31, and is used to cooperate with the main control circuit NFC antenna unit 33 to enable an external handheld terminal to perform NFC communication with the shelf layer edge main control circuit 3.

[0036] In an embodiment of the present invention, a working method of a shelf layer edge main control circuit is also provided, as described in the following embodiments. Since the principle of solving problems by this method is similar to that of the above-mentioned electronic price tag system, the implementation of this method can refer to the implementation of the system, and the repeated parts will not be described again.

[0037] Figure 7 It is a schematic flowchart of the working method of the shelf layer edge main control circuit in an embodiment of the present invention, as Figure 7 shown, this method includes: Step 101: The main control wireless communication chip controls the antenna selection circuit to connect to any accessory NFC antenna unit; the main control wireless communication chip is connected to the NFC card reader, the battery unit and the antenna selection circuit, the battery unit is used to provide electrical energy for the entire electronic price tag system, and the accessory NFC antenna unit is used to transmit energy and task instructions to the installed electronic price tag when the antenna selection circuit is connected to any accessory NFC antenna unit; Step 102: When the NFC card reader selects to connect to any accessory NFC antenna unit through the antenna selection circuit, it transmits energy through the connected accessory NFC antenna unit to provide a preset working power for the electronic price tag at the corresponding position of the accessory NFC antenna unit to perform different tasks; Step 103: After the NFC card reader provides working power for the electronic price tag at the corresponding position of the accessory NFC unit, the main control wireless communication chip sends different task instructions to the NFC card reader; Step 104: The NFC card reader performs wireless communication with the electronic price tag at this position through the connected accessory NFC antenna unit according to the different task instructions, so that the electronic price tag realizes different tasks according to the different task instructions.

[0038] The following introduces Figures 1 to 3 the main working process of the new electronic price tag system architecture shown in the figure.

[0039] 1. Registration and networking The ESL (electronic price tag) is installed on an accessory at the edge of a shelf layer. The shelf layer edge main control circuit can be discovered in two ways: First, the main control circuit at the edge of the shelf layer periodically queries and reads one by one whether there is a new ESLID (electronic price tag identifier) at the position of each accessory NFC antenna unit, and determines its position at the same time.

[0040] That is, in one embodiment, after the main control wireless communication chip provides working power for the electronic price tag at the corresponding position of the accessory NFC unit by the NFC card reader, different task instructions are sent to the NFC card reader, including: after the main control wireless communication chip provides working power for the electronic price tag at the corresponding position of the accessory NFC unit by the NFC card reader, a query task instruction is periodically sent to the NFC card reader; According to the different task instructions, the NFC card reader performs wireless communication with the electronic price tag at this position through the connected accessory NFC antenna unit, so that the electronic price tag realizes different tasks according to different task instructions, including: The NFC card reader sends the query task instruction to the connected accessory NFC antenna unit; the connected accessory NFC antenna unit is used to obtain the identifier of the new electronic price tag according to the query task instruction; The NFC card reader reads the identifier of the new electronic price tag obtained by the connected accessory NFC antenna unit and sends it to the main control wireless communication chip; The working method may further include: After receiving the identifier of the new electronic price tag, the main control wireless communication chip determines the position information of the new electronic price tag, actively initiates communication with the base station, and reports the identifier of the newly networked electronic price tag and its position information to the electronic price tag background server through the base station; the electronic price tag background server is used to register the new electronic price tag into the network according to the identifier of the new electronic price tag and its position information, that is to say, all subsequent messages that the network hopes to send to this electronic price tag pass through the main control circuit.

[0041] Specifically, when implemented, the main control circuit may store the relationship between the electronic price tag identifier and the position information of the electronic price tag. After receiving the identifier of the new electronic price tag, the main control wireless communication chip may search for the identifier of the new electronic price tag in the relationship to determine the position information corresponding to the identifier of the new electronic price tag.

[0042] Second, when a handheld terminal such as a PDA touches the main control circuit at the edge of the shelf layer, the main control circuit can directly obtain the ESID through the handheld terminal, and then query the NFC antenna position one by one to read the ESLID to determine its position.

[0043] That is, in one embodiment, the above working method may further include: When the handheld terminal touches the NFC antenna unit of the main control circuit, the main control wireless communication chip obtains the identifier of the new electronic price tag to be installed transmitted by the handheld terminal through the NFC tag chip; the main control wireless communication chip is connected to the NFC tag chip, and the NFC tag chip is connected to the NFC antenna unit of the main control circuit; After the main control wireless communication chip provides working power for the electronic price tag at the corresponding position of the accessory NFC unit by the NFC card reader, different task instructions are sent to the NFC card reader, including: when the new electronic price tag is installed on the accessory body, after the main control wireless communication chip provides working power for the electronic price tag at the corresponding position of the accessory NFC unit by the NFC card reader, a query task instruction is sent to the NFC card reader; According to the different task instructions, the NFC card reader performs wireless communication with the electronic price tag at this position through the connected accessory NFC antenna unit, so that the electronic price tag realizes different tasks according to different task instructions, including: The NFC card reader sends the query task instruction to the connected accessory NFC antenna unit; the connected accessory NFC antenna unit is used to obtain the identifier of the new electronic price tag according to the query task instruction; The NFC card reader reads the identifier of the new electronic price tag obtained by the connected accessory NFC antenna unit and sends it to the main control wireless communication chip; The working method may further include: The main control wireless communication chip compares the identifier of the electronic price tag read by the NFC card reader with the identifier of the new electronic price tag to be installed obtained by transmission through the handheld terminal. If they are the same, it determines the position information of the new electronic price tag obtained by the connected accessory NFC antenna unit as the position information of the new electronic price tag, and actively initiates communication with the base station, and reports the identifier and position information of the newly networked electronic price tag to the electronic price tag background server through the base station; the electronic price tag background server is used to register the new electronic price tag into the network according to the identifier and position information of the new electronic price tag.

[0044] After that, after the main control circuit at the edge of the shelf layer obtains the new ESLID, it actively initiates communication with the AP, and registers into the network through the ESLID reported by the AP, its own ID, and other necessary attributes.

[0045] 2. Binding and updating There are two ways to bind the ESL to the commodity: First, after the handheld terminal scans the commodity, it touches the ESL to read the ESLID, and then touches the main control circuit at the edge of the shelf layer. Through the main control circuit, it communicates with the AP of the electronic price tag, and transmits the commodity ID and ESLID to the electronic price tag background server to establish a binding relationship.

[0046] During specific implementation, when binding an electronic price tag to a product, the following operations are performed: The handheld terminal scans the product to be bound to obtain information about the product to be bound; the handheld terminal touches the electronic price tag to be bound to obtain information about the electronic price tag to be bound; the handheld terminal sends a binding instruction to the main control circuit at the edge of the shelf layer by touching the main control circuit at the edge of the shelf layer; the binding instruction includes information about the product to be bound and information about the electronic price tag to be bound; the main control circuit at the edge of the shelf layer sends the binding instruction to the electronic price tag back-end server through the base station; the electronic price tag back-end server establishes a relationship between the product to be bound and the electronic price tag to be bound according to the binding instruction.

[0047] As can be seen from the above, in one embodiment, the above working method further includes: When the handheld terminal touches the NFC antenna unit of the main control circuit, the main control wireless communication chip obtains the binding task instruction transmitted by the handheld terminal through the NFC tag chip; the main control wireless communication chip is connected to the NFC tag chip, and the NFC tag chip is connected to the NFC antenna unit of the main control circuit; the handheld terminal is used to scan the product to be bound to obtain information about the product to be bound; touch the electronic price tag to be bound to obtain information about the electronic price tag to be bound; generate the binding (or update) task instruction according to the information about the product to be bound and the information about the electronic price tag to be bound. The main control wireless communication chip sends the binding task instruction to the electronic price tag back-end server through the base station; the electronic price tag back-end server is used to establish a binding relationship between the product to be bound and the electronic price tag to be bound according to the binding task instruction.

[0048] Second, after the handheld terminal scans the product, it touches the ESL to read the ESL ID, and then sends an instruction to the electronic price tag back-end server through the WIFI network or the mobile network to establish a binding relationship.

[0049] During specific implementation, when binding an electronic price tag to a product, the following operations are performed: The handheld terminal scans the product to be bound to obtain information about the product to be bound; the handheld terminal touches the electronic price tag to be bound to obtain information about the electronic price tag to be bound; the handheld terminal sends a binding instruction to the electronic price tag back-end server through the network; the binding instruction includes information about the product to be bound and information about the electronic price tag to be bound; the electronic price tag back-end server establishes a relationship between the product to be bound and the electronic price tag to be bound according to the binding instruction.

[0050] In addition, after the electronic price tag back-end server establishes a new binding relationship, it generates data such as pictures that the ESL should display, and transmits them to the accessories at the edge of the shelf layer through the AP. After the main control circuit powers the ESL through the NFC antenna corresponding to the ESL ID, it sends the display data to the ESL and continues to supply power until the ESL finishes displaying.

[0051] The ESL back-end server can transmit data such as pictures that should be displayed on multiple ESLs on an edge accessory of a shelf layer to the edge main control circuit of the shelf layer together through the AP. After the main control circuit powers each ESL one by one through the NFC antenna, it sends the display data to the ESL and continues to supply power until the ESL finishes displaying.

[0052] As can be seen from the above, in one embodiment, the ESL back-end server is further configured to generate picture data to be displayed on the corresponding ESL after establishing the binding relationship, and transmit the picture data to be displayed to the edge main control circuit of the shelf layer through the base station; The working method further includes: After receiving the picture data to be displayed, the main control wireless communication chip controls the antenna selection circuit to connect to the accessory NFC antenna unit corresponding to the ESL; When the NFC card reader selects to connect to the accessory NFC antenna unit corresponding to the ESL, the NFC card reader transmits energy through the connected accessory NFC antenna unit to provide a preset working power for the ESL to complete the task of displaying picture data; The main control wireless communication chip sends the picture data to be displayed to the connected accessory NFC antenna unit through the NFC card reader; the accessory NFC antenna unit displays the picture data to be displayed.

[0053] During specific implementation, the storage and processing of data such as pictures are all carried out in the edge main control circuit of the shelf layer, saving space for the ESL.

[0054] 3. Display tasks can include flashing lights and page turning, etc. Flashing lights and page turning include two types: The first type is that the ESL back-end server initiates flashing lights and page turning instructions: The ESL back-end server can transmit instructions such as flashing lights or page turning for multiple ESLs on an edge accessory of a shelf layer to the edge main control circuit of the shelf layer together through the AP. After the edge main control circuit of the shelf layer powers each ESL one by one through the NFC antenna, it sends the instructions to the ESL and continues to supply power until the power of the ESL is sufficient to support flashing lights and page turning for the screen.

[0055] The stored power on each price tag is a key issue, and a capacitor with enough power to support the screen and flash lights for a certain period of time is required. There may be no FLASH space for storing multiple pages on the ESL, and all data is stored in the edge main control circuit of the shelf layer. The page turning logic is implemented in the edge main control circuit of the shelf layer and then transmitted to each ESL for display.

[0056] Each time the main control circuit at the edge of the shelf layer transmits instructions and data to a certain electronic price tag, it is necessary to determine that the corresponding NFC antenna is selected and sufficient energy is output for the electronic price tag to obtain enough energy to complete the operations corresponding to these instructions, such as the flashing duration and the screen refreshing duration, before the power supply to the NFC antenna unit of the accessory can be revoked.

[0057] Second, the page turning and flashing instructions for NFC operations: After the handheld terminal touches the ESL or ESL ID to be operated, and then touches the main control circuit at the edge of the shelf layer, the instructions such as flashing or page turning for multiple ESLs on an accessory at the edge of the shelf layer are transmitted to the main control circuit at the edge of the shelf layer together. After the main control circuit powers each ESL through the NFC antenna one by one, the instructions are sent to the ESL, and the power supply continues until the power of the ESL is sufficient to support flashing and page turning and screen refreshing.

[0058] As can be seen from the above, in one embodiment, the above working method may further include: the main control wireless communication chip receives a display task instruction sent by the electronic price tag background server or an external handheld terminal; After the main control wireless communication chip provides working power for the electronic price tag at the corresponding position of the accessory NFC unit by the NFC card reader, different task instructions are sent to the NFC card reader, including: after the main control wireless communication chip provides working power for the electronic price tag at the corresponding position of the accessory NFC unit by the NFC card reader, the display task instruction is sent to the NFC card reader; The NFC card reader performs wireless communication with the electronic price tag at this position through the connected accessory NFC antenna unit according to the different task instructions, so that the electronic price tag realizes different tasks according to different task instructions, including: the NFC card reader sends the display task instruction to the connected accessory NFC antenna unit; the connected accessory NFC antenna unit is used to execute the display operation task according to the display task instruction, and the power supply continues until the power of the electronic price tag is sufficient to support the electronic price tag to complete the display task, such as flashing or page turning operation tasks.

[0059] 4. Display change The inventor also found the following technical problems: Since each electronic price tag has a one-to-one binding relationship with a certain commodity, positioning the position of the electronic price tag is equivalent to positioning the commodity. For application scenarios such as rapid picking, searching, and replenishing goods, it has very practical value. Precise positioning of the electronic price tag positions for each shelf, each shelf board, and each display position can assist the store in accurately managing the display positions of goods and realizing the optimal strategy management of the actual space of the store. Therefore, the wireless positioning methods described in the prior art can only locate each shelf and cannot accurately locate each display position of each shelf and shelf board. Considering this technical problem, the embodiments of the present invention propose to Figures 1 to 3The following preferred solutions for discovering the display changes implemented by the disclosed architecture diagram are presented.

[0060] When the ESL is installed on an edge fitting of a shelf layer or a new product is bound to the ESL without changing its position, both correspond to a change in the display. The main control circuit of the shelf layer edge can discover the display change through the aforementioned registration and networking process or the product binding process as follows: The main control circuit of the shelf layer edge queries and reads whether there is a new ESL ID at each NFC antenna position one by one, and simultaneously determines its position. Or when a handheld terminal such as a PDA touches the main control circuit of the shelf layer edge, the main control circuit can directly obtain the ESID through the handheld terminal and then query the NFC antenna positions one by one to read the ESL ID to determine its position.

[0061] After the main control circuit of the shelf layer edge discovers the display change, it actively initiates communication with the AP and reports the new display relationship on the edge fitting of this shelf layer to the electronic price tag background server through the AP, including the ESL ID corresponding to each position, product ID, etc., so as to generate a new display relationship in the electronic price tag background server.

[0062] As can be seen from the above, in one embodiment, after the main control wireless communication chip provides working power for the electronic price tag at the corresponding position of the accessory NFC unit of the NFC reader, it sends different task instructions to the NFC reader, including: after the main control wireless communication chip provides working power for the electronic price tag at the corresponding position of the accessory NFC unit of the NFC reader, it periodically sends a positioning task instruction to the NFC reader; The NFC reader performs wireless communication with the electronic price tag at this position through the connected accessory NFC antenna unit according to the different task instructions, so that the electronic price tag can implement different tasks according to the different task instructions, including: The NFC reader sends the positioning task instruction to the connected accessory NFC antenna unit; the connected accessory NFC antenna unit is used to obtain the identifier of the new electronic price tag according to the positioning task instruction; The NFC reader reads the identifier of the new electronic price tag obtained by the connected accessory NFC antenna unit and sends it to the main control wireless communication chip; The working method further includes: after receiving the identifier of the new electronic price tag, the main control wireless communication chip determines the position information of the new electronic price tag; According to the identifier of the new electronic price tag and its position information, determine the position information of the product bound to the new electronic price tag.

[0063] As can be seen from the above, in one embodiment, the above working method further includes: when the handheld terminal touches the NFC antenna unit of the main control circuit, the main control wireless communication chip obtains the to-be-located electronic price tag identifier transmitted by the handheld terminal through the NFC tag chip; the main control wireless communication chip is connected to the NFC tag chip, and the NFC tag chip is connected to the NFC antenna unit of the main control circuit; After the main control wireless communication chip provides working power for the electronic price tag at the corresponding position of the accessory NFC unit by the NFC card reader, the main control wireless communication chip sends different task instructions to the NFC card reader, including: when receiving the to-be-located electronic price tag identifier, after the main control wireless communication chip provides working power for the electronic price tag at the corresponding position of the accessory NFC unit by the NFC card reader, the main control wireless communication chip sends a positioning task instruction to the NFC card reader; According to the different task instructions, the NFC card reader performs wireless communication with the electronic price tag at this position through the connected accessory NFC antenna unit, so that the electronic price tag can implement different tasks according to different task instructions, including: The NFC card reader sends the positioning task instruction to the connected accessory NFC antenna unit; the connected accessory NFC antenna unit is used to obtain the identifier of the electronic price tag at the corresponding position according to the positioning task instruction; The NFC card reader reads the identifier of the electronic price tag at the corresponding position obtained by the connected accessory NFC antenna unit and sends it to the main control wireless communication chip; The working method further includes: The main control wireless communication chip compares the identifier of the electronic price tag read by the NFC card reader with the to-be-located electronic price tag identifier obtained by transmission through the handheld terminal. If they are the same, it determines the position information of the electronic price tag at the corresponding position obtained by the connected accessory NFC antenna unit as the position information of the to-be-located electronic price tag; According to the position information of the to-be-located electronic price tag, the position of the bound commodity is determined.

[0064] In specific implementation, the new architecture of the embodiment of the present invention further provides a method for accurately measuring the position of the electronic price tag, that is, the above electronic price tag realizes a positioning task according to a positioning instruction to accurately measure the position of the electronic price tag; according to the specific position of each price tag at the edge of the shelf layer, the display data of the shelf commodities is constructed.

[0065] In the embodiment of the present invention, for the method of the main control circuit at the edge of the shelf layer to manage the data of multiple electronic price tags, during operation: the data structure for the main control circuit at the edge of the shelf layer to manage multiple ESLs needs to consider managing the multi-page data of all the electronic price tags on this layer board, such as Figure 4 shown. Through such as Figure 4The data structure shown and the communication process described above can implement all the functions of the electronic price tags described in this technical solution, achieve precise display of corresponding commodities, and achieve the low-carbon goal of electronic price tags without batteries.

[0066] Embodiment 2: In this embodiment, the electronic price tag is powered by a battery.

[0067] Based on Figure 2 The shelf layer edge accessories of the electronic price tag system shown include: an accessory main body 11 arranged along the shelf edge for installing a plurality of electronic price tags 2; a plurality of accessory NFC antenna units 12 arranged along the accessory main body 11 for transmitting task instructions to the installed electronic price tags when the antenna selection circuit 13 is connected to any accessory NFC antenna unit 12; and an antenna selection circuit 13 for selecting and connecting to any accessory NFC antenna unit 12. The shelf layer edge main control circuit 3 is connected to the antenna selection circuit 13 and is used to control the antenna selection circuit 13 to select and connect to any accessory NFC antenna unit 12, so that the shelf layer edge main control circuit 3 performs wireless communication with the electronic price tag at this position through the connected accessory NFC antenna unit, so that the electronic price tag can perform different tasks according to different task instructions.

[0068] In one embodiment, the antenna selection circuit 13 includes: a plurality of selection switches 131, each selection switch 131 being connected to a plurality of accessory NFC antenna units 12; wherein, in a cascaded manner, one output terminal of the previous-stage selection switch is connected to the input terminal of the next-stage selection switch.

[0069] In one embodiment, the shelf layer edge main control circuit 3 includes: A battery unit 32 for supplying electrical energy to the entire electronic price tag system; An NFC card reader 35 connected to the antenna selection circuit 13 and the battery unit 32, and is used to perform wireless communication with the electronic price tag at this position through the connected accessory NFC antenna unit when the antenna selection circuit 13 selects and connects to any accessory NFC antenna unit 12, so that the electronic price tag can perform different tasks according to different task instructions; A main control wireless communication chip 31 connected to the NFC card reader 35, the battery unit 32 and the antenna selection circuit 13, and is used to control the antenna selection circuit 13 to connect to any accessory NFC antenna unit and send different task instructions to the connected accessory NFC antenna unit through the NFC card reader 35.

[0070] In one embodiment, wireless communication is performed with the electronic price tag at this location through the connected accessory NFC antenna unit, including: the NFC reader 35 reads the identifier of the electronic price tag at the corresponding location of the connected accessory NFC antenna unit, and sends the task instruction to the electronic price tag at the corresponding location through the connected accessory NFC antenna unit.

[0071] In one embodiment, the shelf layer edge main control circuit 3 further includes: The main control circuit NFC antenna unit 33, connected to the battery unit 32; The NFC tag chip 34, connected to the main control circuit NFC antenna unit 33, the battery unit 32, and the main control wireless communication chip 31, is used to cooperate with the main control circuit NFC antenna unit 33 so that the external handheld terminal can obtain the identifier of the shelf layer edge main control circuit 3.

[0072] Based on Figure 5 The shown shelf layer edge accessories include: The accessory main body 11 arranged along the shelf edge, used for installing multiple electronic price tags 2; Multiple accessory NFC antenna units 12 arranged along the accessory main body 11, used for transmitting energy and task instructions to the installed electronic price tags when any accessory NFC antenna unit 12 is connected in the antenna selection circuit 13; And the antenna selection circuit 13 for selecting to connect with any accessory NFC antenna unit 12; the antenna selection circuit is used to select to connect with any accessory NFC antenna unit 12 under the control of the shelf layer edge main control circuit 3; the shelf layer edge main control circuit 3 is used to control the antenna selection circuit 13 to select to connect with any accessory NFC antenna unit 12, so that the shelf layer edge main control circuit 3 performs wireless communication with the electronic price tag at this location through the connected accessory NFC antenna unit, so that the electronic price tag can implement different tasks according to different task instructions.

[0073] Based on Figure 6 The shown shelf layer edge main control circuit includes: The battery unit 32, used to provide electrical energy for the entire electronic price tag system; The NFC reader 35, connected to the antenna selection circuit 13 and the battery unit 32, is used to perform wireless communication with the electronic price tag at this location through the connected accessory NFC antenna unit when the antenna selection circuit 13 selects to connect with any accessory NFC antenna unit 12, so that the electronic price tag can implement different tasks according to different task instructions. The master control wireless communication chip 31 is connected to the NFC reader 35, the battery unit 32, and the antenna selection circuit 13, and is used to control the antenna selection circuit 13 to connect to any accessory NFC antenna unit, and send different task instructions to the connected accessory NFC antenna unit through the NFC reader 35.

[0074] In one embodiment, the above-mentioned shelf layer edge master control circuit further includes: The master control circuit NFC antenna unit 33 is connected to the battery unit 32; The NFC tag chip 34 is connected to the master control circuit NFC antenna unit 33, the battery unit 32, and the master control wireless communication chip 31, and is used to cooperate with the master control circuit NFC antenna unit 33 to enable NFC communication between the external handheld terminal and the shelf layer edge master control circuit 3.

[0075] Figure 8 It is a schematic flowchart of the working method of the shelf layer edge master control circuit in another embodiment of the present invention. As Figure 8 shown, the method includes the following steps: Step 201: The master control wireless communication chip controls the antenna selection circuit to connect to any accessory NFC antenna unit; the master control wireless communication chip is connected to the NFC reader, the battery unit, and the antenna selection circuit, the battery unit is used to provide electrical energy for the entire electronic price tag system, and the accessory NFC antenna unit is used to transmit energy and task instructions to the installed electronic price tag when the antenna selection circuit is connected to any accessory NFC antenna unit. Step 202: The master control wireless communication chip sends different task instructions to the NFC reader; Step 203: The NFC reader performs wireless communication with the electronic price tag at this position through the connected accessory NFC antenna unit according to the different task instructions, so that the electronic price tag realizes different tasks according to the different task instructions.

[0076] In one embodiment, the master control wireless communication chip sends different task instructions to the NFC reader, including: the master control wireless communication chip periodically sends query task instructions to the NFC reader; The NFC reader performs wireless communication with the electronic price tag at this position through the connected accessory NFC antenna unit according to the different task instructions, so that the electronic price tag realizes different tasks according to the different task instructions, including: The NFC reader sends the query task instructions to the connected accessory NFC antenna unit; the connected accessory NFC antenna unit is used to obtain the identifier of the new electronic price tag according to the query task instructions; The NFC reader reads the identifier of the new electronic price tag obtained by the connected accessory NFC antenna unit and sends it to the master control wireless communication chip; The working method further includes: After receiving the new electronic price tag identifier, the master wireless communication chip determines the location information of the new electronic price tag, actively initiates communication with the base station, and reports the new electronic price tag identifier and its location information for network access to the electronic price tag back-end server through the base station; the electronic price tag back-end server is used to register the new electronic price tag into the network according to the new electronic price tag identifier and its location information.

[0077] In one embodiment, the above working method may further include: When the handheld terminal touches the NFC antenna unit of the master control circuit, the master wireless communication chip obtains the new electronic price tag identifier to be installed transmitted by the handheld terminal through the NFC tag chip; the master wireless communication chip is connected to the NFC tag chip, and the NFC tag chip is connected to the NFC antenna unit of the master control circuit; The master wireless communication chip sends different task instructions to the NFC card reader, including: when the new electronic price tag is installed on the accessory body, the master wireless communication chip sends a query task instruction to the NFC card reader; According to the different task instructions, the NFC card reader performs wireless communication with the electronic price tag at this position through the connected accessory NFC antenna unit, so that the electronic price tag realizes different tasks according to the different task instructions, including: The NFC card reader sends the query task instruction to the connected accessory NFC antenna unit; the connected accessory NFC antenna unit is used to obtain the identifier of the new electronic price tag according to the query task instruction; The NFC card reader reads the identifier of the new electronic price tag obtained by the connected accessory NFC antenna unit and sends it to the master wireless communication chip; The working method further includes: The master wireless communication chip compares the identifier of the electronic price tag read by the NFC card reader with the new electronic price tag identifier to be installed obtained through the transmission of the handheld terminal. If they are the same, it determines the location information of the new electronic price tag obtained by the connected accessory NFC antenna unit as the location information of the new electronic price tag, actively initiates communication with the base station, and reports the new electronic price tag identifier and its location information for network access to the electronic price tag back-end server through the base station; the electronic price tag back-end server is used to register the new electronic price tag into the network according to the new electronic price tag identifier and its location information.

[0078] In one embodiment, the above working method may further include: When the handheld terminal touches the NFC antenna unit of the main control circuit, the main control wireless communication chip obtains the binding task instruction transmitted by the handheld terminal through the NFC tag chip; the main control wireless communication chip is connected to the NFC tag chip, and the NFC tag chip is connected to the NFC antenna unit of the main control circuit; the handheld terminal is used to scan the product to be bound to obtain the information of the product to be bound; touch the electronic price tag to be bound to obtain the information of the electronic price tag to be bound; and generate the binding task instruction according to the information of the product to be bound and the information of the electronic price tag to be bound. The main control wireless communication chip sends the binding task instruction to the electronic price tag background server through the base station; the electronic price tag background server is used to establish the binding relationship between the product to be bound and the electronic price tag to be bound according to the binding task instruction.

[0079] In one embodiment, the electronic price tag background server is further used to generate the picture data to be displayed for the corresponding electronic price tag after establishing the binding relationship, and transmit the picture data to be displayed to the main control circuit at the edge of the shelf layer through the base station. The working method further includes: After receiving the picture data to be displayed, the main control wireless communication chip controls the antenna selection circuit to connect the accessory NFC antenna unit corresponding to the electronic price tag. The main control wireless communication chip sends the picture data to be displayed to the connected accessory NFC antenna unit through the NFC card reader; the accessory NFC antenna unit displays the picture data to be displayed.

[0080] In one embodiment, the above working method may further include: the main control wireless communication chip receives the display task instruction sent by the electronic price tag background server or the external handheld terminal. The main control wireless communication chip sends different task instructions to the NFC card reader, including: the main control wireless communication chip sends the display task instruction to the NFC card reader. The NFC card reader performs wireless communication with the electronic price tag at this position through the connected accessory NFC antenna unit according to the different task instructions, so that the electronic price tag realizes different tasks according to the different task instructions, including: the NFC card reader sends the display task instruction to the connected accessory NFC antenna unit; the connected accessory NFC antenna unit is used to perform the display operation task according to the display task instruction.

[0081] In one embodiment, the main control wireless communication chip sends different task instructions to the NFC card reader, including: the main control wireless communication chip periodically sends the positioning task instruction to the NFC card reader. The NFC card reader performs wireless communication with the electronic price tag at this location through the connected accessory NFC antenna unit according to the different task instructions, so that the electronic price tag can implement different tasks according to different task instructions, including: The NFC card reader sends the positioning task instruction to the connected accessory NFC antenna unit; the connected accessory NFC antenna unit is used to obtain the identifier of the new electronic price tag according to the positioning task instruction; The NFC card reader reads the identifier of the new electronic price tag obtained by the connected accessory NFC antenna unit and sends it to the main control wireless communication chip; The working method further includes: after receiving the identifier of the new electronic price tag, the main control wireless communication chip determines the position information of the new electronic price tag; According to the identifier of the new electronic price tag and its position information, determine the position information of the commodity bound to the new electronic price tag.

[0082] In one embodiment, the above working method further includes: when the handheld terminal touches the main control circuit at the edge of the shelf layer, the NFC card reader obtains the identifier of the electronic price tag to be positioned through the handheld terminal and sends it to the main control wireless communication chip; The main control wireless communication chip sends different task instructions to the NFC card reader, including: when receiving the identifier of the electronic price tag to be positioned, the main control wireless communication chip sends the positioning task instruction to the NFC card reader; The NFC card reader performs wireless communication with the electronic price tag at this location through the connected accessory NFC antenna unit according to the different task instructions, so that the electronic price tag can implement different tasks according to different task instructions, including: The NFC card reader sends the positioning task instruction to the connected accessory NFC antenna unit; the connected accessory NFC antenna unit is used to obtain the identifier of the electronic price tag at the corresponding position according to the positioning task instruction; The NFC card reader reads the identifier of the electronic price tag at the corresponding position obtained by the connected accessory NFC antenna unit and sends it to the main control wireless communication chip; The working method further includes: The main control wireless communication chip compares the identifier of the electronic price tag read by the NFC card reader with the identifier of the electronic price tag to be positioned obtained through the handheld terminal. If they are the same, it determines the position information of the electronic price tag at the corresponding position obtained by the connected accessory NFC antenna unit as the position information of the electronic price tag to be positioned; According to the position information of the electronic price tag to be positioned, determine the position of the bound commodity.

[0083] Embodiment 3: In this embodiment, the electronic price tag is not powered by a battery, and the main control circuit at the edge of the shelf layer only implements a unified power supply management scheme for the electronic price tags.

[0084] Based on Figure 2 The electronic price tag system shown, the shelf layer edge fitting, includes: a fitting main body 11 arranged along the shelf edge for installing a plurality of electronic price tags 2; a plurality of fitting NFC antenna units 12 arranged along the fitting main body 11 for transmitting energy and task instructions to the installed electronic price tags when an antenna selection circuit 13 is connected to any fitting NFC antenna unit 12; and an antenna selection circuit 13 for selecting and connecting to any fitting NFC antenna unit 12; The shelf layer edge main control circuit 3, connected to the antenna selection circuit 13, is used to control the antenna selection circuit 13 to select and connect to any fitting NFC antenna unit 12, so that the shelf layer edge main control circuit 3 provides a preset working power through the connected fitting NFC antenna unit to the electronic price tag at the corresponding position of the fitting NFC antenna unit when realizing different tasks.

[0085] In one embodiment, the antenna selection circuit 13 includes: a plurality of selection switches 131, each selection switch 131 being connected to a plurality of fitting NFC antenna units 12; wherein, in a cascaded manner, an output terminal of a previous-stage selection switch is connected to an input terminal of a subsequent-stage selection switch.

[0086] In one embodiment, the shelf layer edge main control circuit 3 includes: A battery unit 32 for providing electrical energy for the entire electronic price tag system; An NFC card reader 35, connected to the antenna selection circuit 13 and the battery unit 32, is used to provide a preset working power through the connected fitting NFC antenna unit to the electronic price tag at the corresponding position of the fitting NFC antenna unit when realizing different tasks when the antenna selection circuit 13 selects and connects to any fitting NFC antenna unit; A main control wireless communication chip 31, connected to the NFC card reader 35, the battery unit 32 and the antenna selection circuit 13, is used to control the antenna selection circuit 13 to connect to any fitting NFC antenna unit.

[0087] In one embodiment, the shelf layer edge main control circuit 3 further includes: A main control circuit NFC antenna unit 33, connected to the battery unit 32; An NFC tag chip 34, connected to the main control circuit NFC antenna unit 33, the battery unit 32 and the main control wireless communication chip 31, is used to cooperate with the main control circuit NFC antenna unit 33 so that an external handheld terminal can obtain the identifier of the shelf layer edge main control circuit 3.

[0088] Based on Figure 5 The shelf layer edge fitting shown includes: The accessory main body 11 arranged along the edge of the shelf is used for installing a plurality of electronic price tags 2; A plurality of accessory NFC antenna units 12 arranged along the accessory main body 11 are used for transmitting energy to the installed electronic price tags when the antenna selection circuit 13 is connected to any accessory NFC antenna unit 12; And an antenna selection circuit 13 for selecting to connect to any accessory NFC antenna unit 12; the antenna selection circuit is used for selecting to connect to any accessory NFC antenna unit 12 under the control of the main control circuit 3 at the edge of the shelf layer; the main control circuit 3 at the edge of the shelf layer is used for controlling the antenna selection circuit 13 to select to connect to any accessory NFC antenna unit 12, so that the main control circuit 3 at the edge of the shelf layer provides a preset working power for the electronic price tags at the corresponding positions of the accessory NFC antenna units through the connected accessory NFC antenna units when implementing different tasks.

[0089] Based on Figure 6 As shown, the main control circuit at the edge of the shelf layer includes: A battery unit 32 for providing electrical energy for the entire electronic price tag system; An NFC card reader 35, connected to the antenna selection circuit 13 and the battery unit 32, is used for providing a preset working power for the electronic price tags at the corresponding positions of the accessory NFC antenna units through the connected accessory NFC antenna units when the antenna selection circuit 13 selects to connect to any accessory NFC antenna unit 12 when implementing different tasks; A main control wireless communication chip 31, connected to the NFC card reader 35, the battery unit 32 and the antenna selection circuit 13, is used for controlling the antenna selection circuit 13 to connect to any accessory NFC antenna unit.

[0090] In one embodiment, the above main control circuit at the edge of the shelf layer may further include: A main control circuit NFC antenna unit 33, connected to the battery unit 32; An NFC tag chip 34, connected to the main control circuit NFC antenna unit 33, the battery unit 32 and the main control wireless communication chip 31, is used for cooperating with the main control circuit NFC antenna unit 33 to enable NFC communication between an external handheld terminal and the main control circuit 3 at the edge of the shelf layer.

[0091] Figure 9 It is a schematic flowchart of the working method of the main control circuit at the edge of the shelf layer in another embodiment of the present invention, as Figure 9 shown, the method includes the following steps: Step 301: The main control wireless communication chip controls the antenna selection circuit to connect to any accessory NFC antenna unit; the main control wireless communication chip is connected to the NFC reader, the battery unit and the antenna selection circuit, the battery unit is used to provide electrical energy for the entire electronic price tag system, and the accessory NFC antenna unit is used to transmit energy and task instructions to the installed electronic price tag when the antenna selection circuit is connected to any accessory NFC antenna unit; Step 302: When the NFC reader selects to connect to any accessory NFC antenna unit through the antenna selection circuit, it emits energy through the connected accessory NFC antenna unit to provide a preset working power for the electronic price tags at the corresponding positions of the accessory NFC antenna unit to perform different tasks.

[0092] Embodiment 4: This Embodiment 4 is a preferred solution for product positioning using the Figures 1 to 6 shown structure.

[0093] Figure 10 is a schematic flowchart of a product positioning method based on the main control circuit at the edge of the shelf layer in another embodiment of the present invention, as shown in Figure 10 shown, the method includes the following steps: Step 401: The main control wireless communication chip controls the antenna selection circuit to connect to any accessory NFC antenna unit; the main control wireless communication chip is connected to the NFC reader, the battery unit and the antenna selection circuit, the battery unit is used to provide electrical energy for the entire electronic price tag system, and the accessory NFC antenna unit is used to transmit energy and task instructions to the installed electronic price tag when the antenna selection circuit is connected to any accessory NFC antenna unit; Step 402: When the NFC reader selects to connect to any accessory NFC antenna unit through the antenna selection circuit, it emits energy through the connected accessory NFC antenna unit to provide a preset working power for the electronic price tags at the corresponding positions of the accessory NFC antenna unit to perform different tasks; Step 403: After the NFC reader provides working power for the electronic price tags at the corresponding positions of the accessory NFC unit, the main control wireless communication chip periodically sends a positioning task instruction to the NFC reader; Step 404: The NFC reader sends the positioning task instruction to the connected accessory NFC antenna unit; the connected accessory NFC antenna unit is used to obtain the identifier of the new electronic price tag according to the positioning task instruction; Step 405: The NFC reader reads the identifier of the new electronic price tag obtained by the connected accessory NFC antenna unit and sends it to the main control wireless communication chip; Step 406: After receiving the identifier of the new electronic price tag, the main control wireless communication chip determines the position information of the new electronic price tag; according to the identifier of the new electronic price tag and its position information, it determines the position information of the product bound to the new electronic price tag.

[0094] The above Examples 1 to 4 are all based on Figures 1 to 6 the accompanying drawings of the shown structure.

[0095] Based on the foregoing inventive concept, as Figure 11 shown, the present invention also provides a computer device 900, including a memory 910, a processor 920, and a computer program 930 stored on the memory 910 and executable on the processor 920. When the processor 920 executes the computer program 930, the working method of the foregoing shelf layer edge main control circuit is implemented.

[0096] An embodiment of the present invention also provides a computer-readable storage medium. The computer-readable storage medium stores a computer program. When the computer program is executed by a processor, the working method of the above shelf layer edge main control circuit is implemented.

[0097] An embodiment of the present invention also provides a computer program product. The computer program product includes a computer program. When the computer program is executed by a processor, the working method of the above shelf layer edge main control circuit is implemented.

[0098] The beneficial technical effects of the electronic price tag system, accessories, circuits, and working solutions provided by the embodiments of the present invention are as follows: The shelf layer edge main control circuit controls the antenna selection circuit to connect to any accessory NFC antenna unit, so that the shelf layer edge main control circuit provides a preset working power for the electronic price tag at the corresponding position of the accessory NFC antenna unit through the connected accessory NFC antenna unit to perform different tasks, and the shelf layer edge main control circuit performs wireless communication with the electronic price tag at this position through the connected accessory NFC antenna unit, so that the electronic price tag can perform different tasks according to different task instructions. A new electronic price tag system architecture, power supply method, and communication solution can be provided to realize low-carbon operation of the electronic price tag, reduce interference of the wireless channel, and improve communication efficiency.

[0099] Those skilled in the art should understand that the embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0100] The present invention is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to embodiments of the present invention. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of flows and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices generate means for implementing the functions specified in one flow Figure 1 one flow or multiple flows and / or blocks Figure 1 or multiple blocks.

[0101] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the computer-readable memory generate a manufactured article including instruction means that implement the functions specified in one flow Figure 1 one flow or multiple flows and / or blocks Figure 1 or multiple blocks.

[0102] These computer program instructions can also be loaded onto a computer or other programmable data processing device, such that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one flow Figure 1 one flow or multiple flows and / or blocks Figure 1 or multiple blocks.

[0103] The specific embodiments described above further elaborate on the objectives, technical solutions, and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electronic price tag system, characterized in that, Including: The edge accessories of the shelf layer and the main control circuit of the shelf layer edge; wherein: The edge accessories of the shelf layer include: an accessory main body (11) arranged along the edge of the shelf for installing a plurality of electronic price tags (2); a plurality of accessory NFC antenna units (12) arranged along the accessory main body (11) for transmitting energy and task instructions to the installed electronic price tags when the antenna selection circuit (13) is connected to any accessory NFC antenna unit (12); and an antenna selection circuit (13) for selecting and connecting to any accessory NFC antenna unit (12). The main control circuit (3) of the shelf layer edge is connected to the antenna selection circuit (13) for controlling the antenna selection circuit (13) to select and connect to any accessory NFC antenna unit (12), so that the main control circuit (3) of the shelf layer edge provides a preset working power through the connected accessory NFC antenna unit to the electronic price tag at the corresponding position of the accessory NFC antenna unit when realizing different tasks, and the main control circuit (3) of the shelf layer edge performs wireless communication with the electronic price tag at this position through the connected accessory NFC antenna unit, so that the electronic price tag realizes different tasks according to different task instructions.

2. The electronic price tag system according to claim 1, wherein The antenna selection circuit (13) includes: a plurality of selection switches (131), and each selection switch (131) is connected to a plurality of accessory NFC antenna units (12); wherein, in a cascaded manner, an output terminal of the previous-stage selection switch is connected to an input terminal of the next-stage selection switch.

3. The electronic price tag system according to claim 1, characterized in that, The main control circuit (3) of the shelf layer edge includes: A battery unit (32) for providing electrical energy for the entire electronic price tag system; An NFC card reader (35) connected to the antenna selection circuit (13) and the battery unit (32) for providing a preset working power through the connected accessory NFC antenna unit to the electronic price tag at the corresponding position of the accessory NFC antenna unit when realizing different tasks, and performing wireless communication with the electronic price tag at this position through the connected accessory NFC antenna unit, so that the electronic price tag realizes different tasks according to different task instructions. A main control wireless communication chip (31) connected to the NFC card reader (35), the battery unit (32) and the antenna selection circuit (13) for controlling the antenna selection circuit (13) to connect to any accessory NFC antenna unit and sending different task instructions to the connected accessory NFC antenna unit through the NFC card reader (35).

4. The electronic price tag system according to claim 3, wherein Performing wireless communication with the electronic price tag at this position through the connected accessory NFC antenna unit includes: the NFC card reader (35) reads the identifier of the electronic price tag at the corresponding position of the connected accessory NFC antenna unit and sends the task instructions to the electronic price tag at the corresponding position through the connected accessory NFC antenna unit.

5. The electronic price tag system according to claim 3, wherein The main control circuit (3) of the shelf layer edge further includes: A main control circuit NFC antenna unit (33) connected to the battery unit (32); The NFC tag chip (34), which is connected to the main control circuit NFC antenna unit (33), the battery unit (32) and the main control wireless communication chip (31), is used to cooperate with the main control circuit NFC antenna unit (33) so that an external handheld terminal can obtain the identification of the main control circuit (3) at the edge of the shelf layer.

6. A shelf layer edge fitting, characterized in that, It includes: The accessory main body (11) arranged along the edge of the shelf, which is used to install a plurality of electronic price tags (2); A plurality of accessory NFC antenna units (12) arranged along the accessory main body (11), which are used to transmit energy and task instructions to the installed electronic price tags when the antenna selection circuit (13) is connected to any accessory NFC antenna unit (12); And an antenna selection circuit (13) for selecting to connect to any accessory NFC antenna unit (12); the antenna selection circuit is used to select to connect to any accessory NFC antenna unit (12) under the control of the main control circuit (3) at the edge of the shelf layer; the main control circuit (3) at the edge of the shelf layer is used to control the antenna selection circuit (13) to select to connect to any accessory NFC antenna unit (12), so that the main control circuit (3) at the edge of the shelf layer can provide a preset working power supply for the electronic price tag at the corresponding position of the accessory NFC antenna unit through the connected accessory NFC antenna unit when the electronic price tag at the corresponding position of the accessory NFC antenna unit realizes different tasks, and the main control circuit (3) at the edge of the shelf layer can perform wireless communication with the electronic price tag at this position through the connected accessory NFC antenna unit, so that the electronic price tag can realize different tasks according to different task instructions.

7. A main control circuit for the edge of a shelf layer, characterized in that, It includes: The battery unit (32), which is used to provide electrical energy for the entire electronic price tag system; The NFC reader (35), which is connected to the antenna selection circuit (13) and the battery unit (32), is used to provide a preset working power supply for the electronic price tag at the corresponding position of the accessory NFC antenna unit through the connected accessory NFC antenna unit when the antenna selection circuit (13) selects to connect to any accessory NFC antenna unit, and perform wireless communication with the electronic price tag at this position through the connected accessory NFC antenna unit, so that the electronic price tag can realize different tasks according to different task instructions; The main control wireless communication chip (31), which is connected to the NFC reader (35), the battery unit (32) and the antenna selection circuit (13), is used to control the antenna selection circuit (13) to connect to any accessory NFC antenna unit and send different task instructions to the connected accessory NFC antenna unit through the NFC reader (35).

8. The edge master control circuit of the shelf layer according to claim 7, characterized in that It also includes: The main control circuit NFC antenna unit (33), which is connected to the battery unit (32); The NFC tag chip (34), which is connected to the main control circuit NFC antenna unit (33), the battery unit (32) and the main control wireless communication chip (31), is used to cooperate with the main control circuit NFC antenna unit (33) so that an external handheld terminal can obtain the identification of the main control circuit (3) at the edge of the shelf layer.

9. A working method of a main control circuit for the edge of a shelf layer, characterized in that, It includes: The main control wireless communication chip controls the antenna selection circuit to connect to any accessory NFC antenna unit; the main control wireless communication chip is connected to the NFC card reader, the battery unit and the antenna selection circuit, the battery unit is used to supply power for the entire electronic price tag system, and the accessory NFC antenna unit is used to transmit energy and task instructions to the installed electronic price tag when the antenna selection circuit is connected to any accessory NFC antenna unit; When the NFC card reader selects to connect to any accessory NFC antenna unit through the antenna selection circuit, it transmits energy through the connected accessory NFC antenna unit to provide a preset working power for the electronic price tags at the corresponding positions of the accessory NFC antenna unit to achieve different tasks; After the NFC card reader provides working power for the electronic price tags at the corresponding positions of the accessory NFC unit, the main control wireless communication chip sends different task instructions to the NFC card reader; According to the different task instructions, the NFC card reader performs wireless communication with the electronic price tags at this position through the connected accessory NFC antenna unit, so that the electronic price tags can achieve different tasks according to different task instructions.

10. The working method of the shelf layer edge main control circuit according to claim 9, characterized in that, After the NFC card reader provides working power for the electronic price tags at the corresponding positions of the accessory NFC unit, the main control wireless communication chip sends different task instructions to the NFC card reader, including: after the NFC card reader provides working power for the electronic price tags at the corresponding positions of the accessory NFC unit, it periodically sends query task instructions to the NFC card reader; According to the different task instructions, the NFC card reader performs wireless communication with the electronic price tags at this position through the connected accessory NFC antenna unit, so that the electronic price tags can achieve different tasks according to different task instructions, including: The NFC card reader sends the query task instructions to the connected accessory NFC antenna unit; the connected accessory NFC antenna unit is used to obtain the identifier of the new electronic price tag according to the query task instructions; The NFC card reader reads the identifier of the new electronic price tag obtained by the connected accessory NFC antenna unit and sends it to the main control wireless communication chip; The working method further includes: After receiving the identifier of the new electronic price tag, the main control wireless communication chip determines the location information of the new electronic price tag, actively initiates communication with the base station, and reports the identifier of the newly networked electronic price tag and its location information to the electronic price tag back-end server through the base station; the electronic price tag back-end server is used to register the new electronic price tag into the network according to the identifier of the new electronic price tag and its location information.

11. The working method of the shelf layer edge main control circuit according to claim 9, characterized in that, It further includes: When the handheld terminal touches the NFC antenna unit of the main control circuit, the main control wireless communication chip obtains the identifier of the new electronic price tag to be installed transmitted by the handheld terminal through the NFC tag chip; the main control wireless communication chip is connected to the NFC tag chip, and the NFC tag chip is connected to the NFC antenna unit of the main control circuit; After the main control wireless communication chip provides working power for the electronic price tag at the corresponding position of the accessory NFC unit of the NFC card reader, it sends different task instructions to the NFC card reader, including: when a new electronic price tag is installed on the accessory body, after the main control wireless communication chip provides working power for the electronic price tag at the corresponding position of the accessory NFC unit of the NFC card reader, it sends a query task instruction to the NFC card reader; According to the different task instructions, the NFC card reader performs wireless communication with the electronic price tag at this position through the connected accessory NFC antenna unit, so that the electronic price tag realizes different tasks according to different task instructions, including: The NFC card reader sends the query task instruction to the connected accessory NFC antenna unit; the connected accessory NFC antenna unit is used to obtain the identifier of the new electronic price tag according to the query task instruction; The NFC card reader reads the identifier of the new electronic price tag obtained by the connected accessory NFC antenna unit and sends it to the main control wireless communication chip; The working method further includes: The main control wireless communication chip compares the identifier of the electronic price tag read by the NFC card reader with the identifier of the new electronic price tag to be installed obtained through the handheld terminal. If they are the same, it determines the position information of the new electronic price tag obtained by the connected accessory NFC antenna unit as the position information of the new electronic price tag, and actively initiates communication with the base station, and reports the identifier and position information of the newly networked electronic price tag to the electronic price tag background server through the base station; the electronic price tag background server is used to register the new electronic price tag into the network according to the identifier and position information of the new electronic price tag.

12. The working method of the shelf layer edge main control circuit according to claim 9, characterized in that, It further includes: When the handheld terminal touches the main control circuit NFC antenna unit, the main control wireless communication chip obtains the binding task instruction transmitted by the handheld terminal through the NFC tag chip; The main control wireless communication chip is connected to the NFC tag chip, and the NFC tag chip is connected to the main control circuit NFC antenna unit; the handheld terminal is used to scan the product to be bound to obtain the information of the product to be bound; touch the electronic price tag to be bound to obtain the information of the electronic price tag to be bound; and generate the binding task instruction according to the information of the product to be bound and the information of the electronic price tag to be bound; The main control wireless communication chip sends the binding task instruction to the electronic price tag background server through the base station; the electronic price tag background server is used to establish a binding relationship between the product to be bound and the electronic price tag to be bound according to the binding task instruction.

13. The working method of the shelf layer edge main control circuit according to claim 12, characterized in that, The electronic price tag background server is further used to generate the picture data to be displayed corresponding to the electronic price tag after establishing the binding relationship, and transmit the picture data to be displayed to the main control circuit at the edge of the shelf layer through the base station; The working method further includes: After receiving the picture data to be displayed, the main control wireless communication chip controls the antenna selection circuit to connect the accessory NFC antenna unit corresponding to the electronic price tag; When the NFC card reader selects and connects the accessory NFC antenna unit corresponding to the electronic price tag through the antenna selection circuit, it emits energy through the connected accessory NFC antenna unit to provide the preset working power for the electronic price tag to realize the task of displaying picture data; The main control wireless communication chip sends the picture data to be displayed to the connected accessory NFC antenna unit through the NFC reader; the accessory NFC antenna unit displays the picture data to be displayed.

14. The working method of the shelf layer edge main control circuit according to claim 9, characterized in that, It further includes: The main control wireless communication chip receives the display task instructions sent by the electronic price tag background server or an external handheld terminal; After the main control wireless communication chip provides working power for the electronic price tag at the corresponding position of the accessory NFC unit through the NFC reader, it sends different task instructions to the NFC reader, including: after the main control wireless communication chip provides working power for the electronic price tag at the corresponding position of the accessory NFC unit through the NFC reader, it sends the display task instructions to the NFC reader; The NFC reader performs wireless communication with the electronic price tag at this position through the connected accessory NFC antenna unit according to the different task instructions, so that the electronic price tag realizes different tasks according to the different task instructions, including: the NFC reader sends the display task instructions to the connected accessory NFC antenna unit; the connected accessory NFC antenna unit is used to execute the display operation task according to the display task instructions.

15. The working method of the shelf layer edge main control circuit according to claim 9, characterized in that, After the main control wireless communication chip provides working power for the electronic price tag at the corresponding position of the accessory NFC unit through the NFC reader, it sends different task instructions to the NFC reader, including: after the main control wireless communication chip provides working power for the electronic price tag at the corresponding position of the accessory NFC unit through the NFC reader, it periodically sends the positioning task instructions to the NFC reader; The NFC reader performs wireless communication with the electronic price tag at this position through the connected accessory NFC antenna unit according to the different task instructions, so that the electronic price tag realizes different tasks according to the different task instructions, including: The NFC reader sends the positioning task instructions to the connected accessory NFC antenna unit; the connected accessory NFC antenna unit is used to obtain the identifier of the new electronic price tag according to the positioning task instructions; The NFC reader reads the identifier of the new electronic price tag obtained by the connected accessory NFC antenna unit and sends it to the main control wireless communication chip; The working method further includes: After the main control wireless communication chip receives the identifier of the new electronic price tag, it determines the position information of the new electronic price tag; According to the identifier of the new electronic price tag and its position information, it determines the position information of the commodity bound to the new electronic price tag.

16. The working method of the shelf layer edge main control circuit according to claim 9, characterized in that, It further includes: When the handheld terminal touches the main control circuit NFC antenna unit, the main control wireless communication chip obtains the identifier of the electronic price tag to be located transmitted by the handheld terminal through the NFC tag chip; the main control wireless communication chip is connected to the NFC tag chip, and the NFC tag chip is connected to the main control circuit NFC antenna unit; After the main control wireless communication chip provides working power for the electronic price tag at the corresponding position of the accessory NFC unit through the NFC reader, it sends different task instructions to the NFC reader, including: when receiving the identifier of the electronic price tag to be located, after the main control wireless communication chip provides working power for the electronic price tag at the corresponding position of the accessory NFC unit through the NFC reader, it sends the positioning task instructions to the NFC reader; The NFC card reader performs wireless communication with the electronic price tag at this location through the connected accessory NFC antenna unit according to the different task instructions, so that the electronic price tag can implement different tasks according to different task instructions, including: The NFC card reader sends the positioning task instruction to the connected accessory NFC antenna unit; the connected accessory NFC antenna unit is used to obtain the identifier of the electronic price tag at the corresponding location according to the positioning task instruction; The NFC card reader reads the identifier of the electronic price tag at the corresponding location obtained by the connected accessory NFC antenna unit and sends it to the main control wireless communication chip; The working method further includes: The main control wireless communication chip compares the identifier of the electronic price tag read by the NFC card reader with the identifier of the electronic price tag to be located obtained through the handheld terminal. If they are the same, it determines the location information of the electronic price tag at the corresponding location obtained by the connected accessory NFC antenna unit as the location information of the electronic price tag to be located; According to the location information of the electronic price tag to be located, determine the location of the bound commodity.

17. A computer device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the working method of the shelf layer edge main control circuit according to any one of claims 9 to 16.

18. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, and when the computer program is executed by the processor, it implements the working method of the shelf layer edge main control circuit according to any one of claims 9 to 16.

19. A computer program product, characterized in that, The computer program product includes a computer program, and when the computer program is executed by the processor, it implements the working method of the shelf layer edge main control circuit according to any one of claims 9 to 16.

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