Ink screen management method and device, electronic equipment and medium

Abstract

The embodiment of the invention provides an ink screen management method and device, electronic equipment and a medium. The method is applied to a server. The server is connected with the plurality of reader-writers; the plurality of reader-writers are in communication connection with the plurality of ink screens through radio frequency signals; each ink screen is internally provided with a radio frequency identification tag. The method comprises the following steps: controlling a plurality of reader-writers to send first radio frequency signals to the radio frequency identification tags of a plurality of ink screens; after the radio frequency identification tags of the plurality of ink screens respond to the first radio frequency signal and send a plurality of second radio frequency signals to the plurality of reader-writers, determining an abnormal radio frequency signal of which the signal intensity is smaller than a preset intensity threshold in the plurality of second radio frequency signals, and determining a radio frequency identification tag of an abnormal ink screen according to the abnormal radio frequency signal; and determining the current position of the abnormal ink screen according to a second radio frequency signal between the at least two reader-writers and the radio frequency identification tag of the abnormal ink screen. Therefore, the determined position of the abnormal ink screen is more accurate, so that a user can quickly maintain the abnormal ink screen.

Description

Technical Field

[0001] This invention relates to the field of computer technology, and in particular to an e-ink screen management method, an e-ink screen management device, an electronic device, and a readable storage medium. Background Technology

[0002] With the development of e-ink displays, they have been applied in smart retail, warehouse management and office scenarios. Due to their low power consumption and paper-like display characteristics, e-ink displays are widely used in electronic price tags, item identification signs and other devices. Traditional e-ink display management methods, which use wireless network communication, make it difficult to achieve accurate positioning of e-ink displays, thus affecting the efficiency of warehouse inventory, shelf management and other scenarios. Summary of the Invention

[0003] In view of the above problems, embodiments of the present invention are proposed to provide an e-ink screen management method, an e-ink screen management device, an electronic device, and a readable storage medium that overcome or at least partially solve the above problems.

[0004] In a first aspect, embodiments of the present invention provide an e-ink screen management method, the method being applied to a server; the server is connected to multiple readers / writers; the multiple readers / writers are connected to multiple e-ink screens via radio frequency signals; each e-ink screen is provided with a radio frequency identification tag, the method comprising: Control the multiple readers to send a first radio frequency signal to the multiple RFID tags on the e-ink screens; After the RFID tags of the multiple e-ink screens send multiple second RFID signals to the multiple readers in response to the first RFID signal, an abnormal RFID signal with a signal strength less than a preset strength threshold is identified among the multiple second RFID signals, and an abnormal e-ink screen RFID tag is identified based on the abnormal RFID signal. The current location of the abnormal ink screen is determined based on the second radio frequency signal between at least two readers and the radio frequency identification tag of the abnormal ink screen.

[0005] Optionally, determining the current location of the abnormal ink screen based on the second radio frequency signal between the at least two readers and the RFID tag of the abnormal ink screen includes: The phase between the at least two readers and the abnormal ink screen is determined based on the second radio frequency signal between the at least two readers and the radio frequency identification tag of the abnormal ink screen. The current position of the abnormal ink screen is determined based on the phase between the at least two readers and the abnormal ink screen.

[0006] Optionally, determining the current position of the abnormal e-ink screen based on the phase between the at least two readers and the abnormal e-ink screen includes: Obtain the distance between the at least two readers; Determine the phase difference between the at least two readers and the abnormal ink screen; The current position of the abnormal ink screen is determined based on the distance between the at least two readers and the phase difference between the phases of the at least two readers and the abnormal ink screen.

[0007] Optionally, the server is also connected to a mobile terminal; after determining the current location of the abnormal ink screen based on the second radio frequency signal between the at least two readers and the RFID tag of the abnormal ink screen, the method further includes: Obtain the reference position corresponding to the abnormal ink screen; Determine the distance difference between the reference position and the current position; When the distance difference is greater than a preset distance, the identification identifier of the abnormal e-ink screen is obtained, a first prompt message is generated based on the identification identifier and the first preset information, and the first prompt message is sent to the mobile terminal; the first prompt message indicates that the abnormal e-ink screen is abnormally deployed. When the distance is less than or equal to the preset distance, the identification identifier of the abnormal e-ink screen is obtained, a second prompt message is generated based on the identification identifier and the second preset information, and the second prompt message is sent to the mobile terminal; the second prompt message indicates that the abnormal e-ink screen is obstructed.

[0008] Optionally, the method includes: Receive a first control command sent by the mobile terminal; the first control command is sent by the user through the mobile terminal according to the first prompt information or the second prompt information; The first control command is sent to the plurality of readers, so that the plurality of readers encrypt the first control command according to a preset key to obtain a first ciphertext. The first ciphertext is sent to the RFID tags of the plurality of e-ink screens. The RFID tags of the plurality of e-ink screens decrypt the first ciphertext using the preset key to obtain the first control command. When the identifier of the RFID tag is the same as the identifier in the first control command, the RFID tags of the plurality of e-ink screens control the e-ink screen corresponding to the RFID tag to output a third prompt message.

[0009] Optionally, the method includes: In response to the sampling and inventory command sent by the mobile terminal, a list of sampled e-ink screens is generated; Obtain the identification identifier corresponding to the e-ink screen in the e-ink screen list, generate a second control command based on the identification identifier, and send the second control command to the plurality of readers, so that the plurality of readers send the second control command to the RFID tags of the plurality of e-ink screens. When the identification identifier of the RFID tag is the same as the identification identifier in the second control command, the RFID tags of the plurality of e-ink screens control the e-ink screen corresponding to the RFID tag to output a fourth prompt message.

[0010] Optionally, the method further includes: The system acquires a third control command sent by the user through scanning the identity identifier of the e-ink screen via the mobile terminal; the third control command is used to control the e-ink screen to stop outputting the third prompt message or the fourth prompt message; The third control command is sent to the plurality of readers, so that the plurality of readers send the third control command to the RFID tags of the plurality of e-ink screens. When the identifier of the RFID tag is the same as the identifier in the third control command, the RFID tags of the plurality of e-ink screens control the e-ink screen corresponding to the RFID tag to stop outputting the third prompt information or the fourth prompt information.

[0011] Secondly, embodiments of the present invention provide an e-ink screen management device, the device being applied to a server; the server is connected to multiple readers / writers; the multiple readers / writers are connected to multiple e-ink screens via radio frequency signals; each e-ink screen is provided with a radio frequency identification tag, the device comprising: A signal transmitting module is used to control the plurality of readers to send a first radio frequency signal to the radio frequency identification tags of the plurality of ink screens; An abnormal signal determination module is used to determine an abnormal radio frequency signal among the multiple second radio frequency signals whose signal strength is less than a preset strength threshold after the radio frequency identification tags of the multiple e-ink screens send multiple second radio frequency signals to the multiple readers in response to the first radio frequency signal, and to determine the radio frequency identification tag of the abnormal e-ink screen based on the abnormal radio frequency signal. The location determination module is used to determine the current location of the abnormal ink screen based on the second radio frequency signal between the at least two readers and the radio frequency identification tag of the abnormal ink screen.

[0012] Optionally, the location determination module includes: The phase determination submodule is used to determine the phase between the at least two readers and the abnormal ink screen based on the second radio frequency signal between the at least two readers and the radio frequency identification tag of the abnormal ink screen; The position determination submodule is used to determine the current position of the abnormal ink screen based on the phase between the at least two readers and the abnormal ink screen.

[0013] Optionally, the position determination submodule includes: The acquisition unit is used to acquire the distance between the at least two readers; The first determining unit is used to determine the phase difference between the phases of the at least two readers and the abnormal ink screen; The second determining unit is used to determine the current position of the abnormal ink screen based on the distance between the at least two readers and the phase difference between the phases of the at least two readers and the abnormal ink screen.

[0014] Optionally, the server is also connected to a mobile terminal; the device further includes: The acquisition module is used to acquire the reference position corresponding to the abnormal ink screen; A distance difference determination module is used to determine the distance difference between the reference position and the current position; The first information generation module is used to obtain the identity identifier of the abnormal e-ink screen when the distance difference is greater than a preset distance, generate a first prompt message based on the identity identifier and the first preset information, and send the first prompt message to the mobile terminal; the first prompt message indicates that the abnormal e-ink screen is abnormally deployed. The second information generation module is used to obtain the identity identifier of the abnormal ink screen when the distance is less than or equal to the preset distance, generate a second prompt message based on the identity identifier and the second preset information, and send the second prompt message to the mobile terminal; the second prompt message indicates that the abnormal ink screen is obstructed.

[0015] Optionally, the device further includes: The instruction receiving module is used to receive a first control instruction sent by the mobile terminal; the first control instruction is sent by the user through the mobile terminal according to the first prompt information or the second prompt information. A first instruction sending module is configured to send the first control instruction to the plurality of readers, so that the plurality of readers encrypt the first control instruction according to a preset key to obtain a first ciphertext, and send the first ciphertext to the RFID tags of the plurality of e-ink screens. The RFID tags of the plurality of e-ink screens decrypt the first ciphertext using the preset key to obtain the first control instruction. When the identifier of the RFID tag is the same as the identifier in the first control instruction, the RFID tags of the plurality of e-ink screens control the e-ink screen corresponding to the RFID tag to output a third prompt message.

[0016] Optionally, the device further includes: The list generation module is used to generate a sampled list of e-ink screens in response to the sampling and inventory command sent by the mobile terminal. The second instruction sending module is used to obtain the identification identifier corresponding to the ink screen in the ink screen list, generate a second control instruction based on the identification identifier, and send the second control instruction to the plurality of readers, so that the plurality of readers send the second control instruction to the radio frequency identification tag of the plurality of ink screens. When the identification identifier of the radio frequency identification tag is the same as the identification identifier in the second control instruction, the radio frequency identification tag of the plurality of ink screens controls the ink screen corresponding to the radio frequency identification tag to output a fourth prompt message.

[0017] Optionally, the device further includes: The instruction acquisition module is used to acquire a third control instruction sent by the user through scanning the identity identifier of the e-ink screen via the mobile terminal; the third control instruction is used to control the e-ink screen to stop outputting the third prompt information or the fourth prompt information; The third instruction sending module is used to send the third control instruction to the plurality of readers, so that the plurality of readers send the third control instruction to the RFID tags of the plurality of e-ink screens. When the identifier of the RFID tag is the same as the identifier in the third control instruction, the RFID tags of the plurality of e-ink screens control the e-ink screen corresponding to the RFID tag to stop outputting the third prompt information or the fourth prompt information.

[0018] Thirdly, embodiments of the present invention provide an electronic device including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the e-ink screen management method as described in the first aspect.

[0019] Fourthly, embodiments of the present invention provide a readable storage medium storing a program or instructions, which, when executed by a processor, implement the steps of the e-ink screen management method as described in the first aspect.

[0020] The embodiments of the present invention have the following advantages: In this embodiment of the invention, the server controls multiple readers to send first radio frequency (RF) signals to multiple RFID tags on e-ink screens. Then, after the RFID tags on the e-ink screens respond to the first RF signals and send multiple second RF signals to the readers, an abnormal RF signal with a signal strength less than a preset strength threshold is identified among the multiple second RF signals. The abnormal RFID tag of the e-ink screen is then identified based on the abnormal RF signal. Finally, the current location of the abnormal e-ink screen is determined based on the second RF signals between at least two readers and the RFID tags of the abnormal e-ink screen. Therefore, even when the RF signal is weak, the location of the abnormal e-ink screen can be determined based on the second RF signals between at least two readers and the RFID tags of the e-ink screen, making the determined location of the abnormal e-ink screen more accurate, allowing users to quickly maintain the abnormal e-ink screen. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a flowchart illustrating the steps of an e-ink screen management method provided in an embodiment of the present invention; Figure 2 This is a structural block diagram of an e-ink screen provided in an embodiment of the present invention; Figure 3 This is a structural block diagram of an e-ink screen management device provided in an embodiment of the present invention. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] The terms "first," "second," etc., used in the specification and claims of this invention are used to distinguish similar objects and are not used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention can be implemented in orders other than those illustrated or described herein. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0025] Traditional e-ink screen management methods, which rely on wireless network communication, struggle to achieve precise screen location. To address this issue, this invention provides an e-ink screen management method. The core concept involves a server controlling multiple readers to send first radio frequency (RF) signals to the RFID tags of multiple e-ink screens. After the RFID tags respond to the first RF signals and send multiple second RF signals to the readers, an abnormal RF signal with a signal strength below a preset threshold is identified. The abnormal e-ink screen's RFID tag is then identified based on this abnormal signal. Finally, the current location of the abnormal e-ink screen is determined based on the second RF signals between at least two readers and the abnormal e-ink screen's RFID tag. This method allows for more accurate location determination of abnormal e-ink screens, even when the RF signal is weak, enabling users to quickly maintain them.

[0026] like Figure 1 The diagram illustrates a flowchart of an e-ink screen management method according to an embodiment of the present invention. The method is applied to a server; the server is connected to multiple readers / writers; the multiple readers / writers are connected to multiple e-ink screens via radio frequency signals; each e-ink screen is equipped with an RFID tag. The method may specifically include the following steps: Step 101: Control the multiple readers to send a first radio frequency signal to the radio frequency identification tags of the multiple e-ink screens.

[0027] like Figure 2 The diagram illustrates a structural block diagram of an e-ink display provided by an embodiment of the present invention. Multiple e-ink displays can be installed on a shelf. Each e-ink display contains a radio frequency identification (RFID) tag. Each e-ink display can connect to multiple readers via radio frequency signals through its internal RFID tag. The multiple readers are connected to a server, and the server can also connect to a mobile terminal. The multiple readers can be evenly distributed on the ceiling of an indoor space with shelves. These readers can be RFID (Radio Frequency Identification) readers.

[0028] When deploying e-ink displays, each e-ink display corresponds to an identification identifier. The identification identifier of each e-ink display can be bound to the radio frequency identification (RFID) tag inside the e-ink display. Then, the binding relationship between the identification identifier and the RFID tag is stored in the storage area. The storage area is set to read-only or locked to ensure that the binding relationship cannot be modified arbitrarily, thereby establishing and solidifying the binding relationship between the identification identifier and the RFID tag.

[0029] In this invention, the server can control multiple readers to send first radio frequency signals to multiple RFID tags on the e-ink screens according to a preset cycle.

[0030] Step 102: After the RFID tags of the multiple e-ink screens send multiple second RFID signals to the multiple readers in response to the first RFID signal, an abnormal RFID signal with a signal strength less than a preset strength threshold is identified among the multiple second RFID signals, and the RFID tag of the abnormal e-ink screen is identified based on the abnormal RFID signal.

[0031] In this invention, after receiving a first radio frequency signal sent by multiple readers, the RFID tags of multiple e-ink screens can respond to the first radio frequency signal by sending a second radio frequency signal to the multiple readers respectively. The multiple readers can send the received second radio frequency signal to the server. The server can determine whether there is an abnormal radio frequency signal with a signal strength less than a preset strength threshold among the signal strengths of the multiple second radio frequency signals. When such a signal exists, the server can identify the abnormal radio frequency signal with a signal strength less than the preset strength threshold from the multiple second radio frequency signals, and determine the abnormal RFID tag corresponding to the abnormal radio frequency signal based on the identifier in the abnormal radio frequency signal, thereby identifying the abnormal e-ink screen corresponding to the abnormal RFID tag.

[0032] In this invention, when the signal strength of the second radio frequency signal is lower than a preset strength threshold, it indicates that the corresponding e-ink screen is abnormally deployed, meaning the e-ink screen is being sent to the wrong shelf. It also indicates that the e-ink screen is being obstructed, resulting in a weak signal strength.

[0033] Step 103: Determine the current location of the abnormal ink screen based on the second radio frequency signal between at least two readers and the radio frequency identification tag of the abnormal ink screen.

[0034] In this invention, after identifying the RFID tag of the abnormal e-ink screen, the second radio frequency signals between at least two readers and the RFID tag of the abnormal e-ink screen can be obtained. For example, the second radio frequency signal A between reader A and the RFID tag of the abnormal e-ink screen, and the second radio frequency signal B between reader B and the RFID tag of the abnormal e-ink screen can be obtained. Then, based on the second radio frequency signal A and the second radio frequency signal B, the current location of the abnormal e-ink screen can be determined, so that the user can find the abnormal e-ink screen based on its current location and perform maintenance on the abnormal e-ink screen.

[0035] In this embodiment of the invention, determining the current position of the abnormal e-ink screen based on the second radio frequency signal between at least two readers and the RFID tag of the abnormal e-ink screen may include: determining the phase between the at least two readers and the abnormal e-ink screen based on the second radio frequency signal between the at least two readers and the RFID tag of the abnormal e-ink screen; and determining the current position of the abnormal e-ink screen based on the phase between the at least two readers and the abnormal e-ink screen.

[0036] This invention is illustrated using two readers as an example. Based on the second radio frequency signal A between reader A and the RFID tag of the abnormal ink screen, the phase A between reader A and the abnormal ink screen is determined. Based on the second radio frequency signal B between reader B and the RFID tag of the abnormal ink screen, the phase B between reader B and the abnormal ink screen is determined. The current position of the abnormal ink screen is determined based on phase A and phase B.

[0037] In this embodiment of the invention, determining the current position of the abnormal e-ink screen based on the phase between at least two readers and the abnormal e-ink screen includes: obtaining the distance between at least two readers; determining the phase difference between the phase between at least two readers and the abnormal e-ink screen; and determining the current position of the abnormal e-ink screen based on the distance between at least two readers and the phase difference between the phase between at least two readers and the abnormal e-ink screen.

[0038] For example: by obtaining the distance between reader A and reader B, and then determining the phase difference between phase A and phase B, the RFID tag of the abnormal e-ink screen can be calculated by combining the phase difference with the distance between reader A and reader B. The RFID tag of the abnormal e-ink screen is equivalent to the angle B of reader B relative to the angle A of reader A. The intersection of the angle lines of angle A and angle B is the position of the RFID tag of the abnormal e-ink screen, that is, the current position of the abnormal e-ink screen.

[0039] In this embodiment of the invention, the server is also connected to a mobile terminal; after determining the current location of the abnormal e-ink screen based on the second radio frequency signal between at least two readers and the RFID tag of the abnormal e-ink screen, the method may further include: obtaining a reference location corresponding to the abnormal e-ink screen; determining the distance difference between the reference location and the current location; when the distance difference is greater than a preset distance, obtaining the identification identifier of the abnormal e-ink screen, generating a first prompt message based on the identification identifier and first preset information, and sending the first prompt message to the mobile terminal; the first prompt message indicates that the location deployment of the abnormal e-ink screen is abnormal; when the distance is less than or equal to the preset distance, obtaining the identification identifier of the abnormal e-ink screen, generating a second prompt message based on the identification identifier and second preset information, and sending the second prompt message to the mobile terminal; the second prompt message indicates that the abnormal e-ink screen is obstructed.

[0040] In this invention, when deploying e-ink displays, after installing them on corresponding shelves, users can scan the identification identifier on the e-ink display using a mobile terminal to obtain the identifier and manually input the corresponding coding information. The coding information can be the reference position of the e-ink display, product display information, etc. The reference position can be a specific distance value or the corresponding shelf number. The user sends the e-ink display's identification identifier and corresponding coding information to the server via their mobile terminal, and the server can bind and store the e-ink display's identification identifier and corresponding coding information. Therefore, users can quickly configure the e-ink display by scanning the identification identifier on the e-ink display using their mobile terminal, eliminating the need for individual configuration via wiring.

[0041] The server can obtain the reference location corresponding to the abnormal e-ink screen and determine the distance difference between the reference location and the current location. When the distance difference is greater than a preset distance, it indicates that the e-ink screen's location deployment is abnormal. In this case, the server can generate a first prompt message based on the abnormal e-ink screen's identifier and send it to the mobile terminal so that the user is aware of the abnormal e-ink screen's location deployment. When the distance difference is less than or equal to the preset distance, it indicates that the abnormal e-ink screen is obstructed, resulting in weak signal strength. In this case, the server can generate a second prompt message based on the abnormal e-ink screen's identifier and send it to the mobile terminal so that the user is aware of the obstructed e-ink screen.

[0042] In this embodiment of the invention, the e-ink screen management method may further include: receiving a first control command sent by a mobile terminal; the first control command is sent by a user through the mobile terminal according to a first prompt message or a second prompt message; sending the first control command to multiple readers, so that the multiple readers encrypt the first control command according to a preset key to obtain a first ciphertext; sending the first ciphertext to multiple RFID tags of the e-ink screens; the multiple RFID tags of the e-ink screens decrypt the first ciphertext according to a preset key to obtain the first control command; when the identifier of the RFID tag is the same as the identifier in the first control command, the multiple RFID tags of the e-ink screens control the e-ink screen corresponding to the RFID tag to output a third prompt message.

[0043] In this invention, after receiving a first or second prompt message from the server, the user can click on the first or second prompt message on the mobile terminal. The mobile terminal generates a first control command based on the click command. The first control command is generated according to the identity identifier in the first or second prompt message. The mobile terminal sends the first control command to the server. After receiving the first control command, the server can send it to multiple readers. The multiple readers can encrypt the first control command using a preset key to obtain a first ciphertext. The preset key can be a preset AES-128 key. The multiple readers send the first ciphertext to multiple RFID tags on the e-ink screens. The RFID tags on the multiple e-ink screens can decrypt the first ciphertext using the same preset key to obtain the first control command. They then determine whether the identity identifier in the first control command is the same as the identity identifier corresponding to the RFID tag, i.e., whether the identity identifier in the first control command is the same as the identity identifier of the e-ink screen. If they are the same, the corresponding e-ink screen is controlled to output a third prompt message, which can be an alarm sound. In this way, the user can quickly find the abnormal e-ink screen based on the alarm sound.

[0044] In this embodiment of the invention, the e-ink screen management method may further include: responding to a sampling inventory command sent by a mobile terminal to generate a sampled e-ink screen list; obtaining the identification identifier corresponding to the e-ink screen in the e-ink screen list, generating a second control command based on the identification identifier, and sending the second control command to multiple readers, so that the multiple readers send the second control command to the radio frequency identification tags of the multiple e-ink screens; when the identification identifier of the radio frequency identification tag is the same as the identification identifier in the second control command, the radio frequency identification tags of the multiple e-ink screens control the e-ink screen corresponding to the radio frequency identification tag to output a fourth prompt message.

[0045] In this invention, when a user needs to conduct a sampling inventory of goods on a shelf, the user can send a sampling inventory command to the server via a mobile terminal. Upon receiving the command, the server responds by generating a list of ink screens to be sampled based on historical inventory data, item value, and turnover frequency using a preset intelligent algorithm. It then retrieves the identifier corresponding to each ink screen in the list and generates a second control command based on this identifier. This second control command is sent to multiple readers. The readers can encrypt the second control command using a preset key to obtain a second ciphertext. The readers then send this ciphertext to the RFID tags of the ink screens. The RFID tags can decrypt the ciphertext using the same preset key to obtain the second control command. The system then checks whether the identifier in the second control command matches the identifier corresponding to the RFID tag, i.e., whether the identifier in the second control command matches the identifier of the ink screen. If they match, the corresponding ink screen outputs a fourth prompt message, which can be a flashing indicator light of a specific color. This allows the user to quickly locate the sampled ink screen based on the flashing indicator light. And an inventory check was conducted on the goods on the shelves corresponding to the sampled e-ink screens.

[0046] In this embodiment of the invention, the e-ink screen management method may further include: obtaining a third control command sent by a user through a mobile terminal scanning the e-ink screen's identifier; the third control command is used to control the e-ink screen to stop outputting a third prompt message or a fourth prompt message; sending the third control command to multiple readers, so that the multiple readers send the third control command to the radio frequency identification tags of multiple e-ink screens; when the identifier of the radio frequency identification tag is the same as the identifier in the third control command, the radio frequency identification tags of the multiple e-ink screens control the e-ink screen corresponding to the radio frequency identification tag to stop outputting the third prompt message or the fourth prompt message.

[0047] In this invention, after a user locates the e-ink display that outputs the third or fourth prompt message, they can scan the identification information on the e-ink display using a mobile terminal. The mobile terminal can generate a third control command based on the identification information and send it to a server. After receiving the third control command, the server can send it to multiple readers. The multiple readers can encrypt the third control command using a preset key to obtain a third ciphertext. The multiple readers send the third ciphertext to the RFID tags of multiple e-ink displays. The RFID tags of the multiple e-ink displays can decrypt the third ciphertext using the same preset key to obtain the third control command. The system then determines whether the identification identifier in the third control command is the same as the identification identifier corresponding to the RFID tag, i.e., whether the identification identifier in the second control command is the same as the identification identifier of the e-ink display. If they are the same, the corresponding e-ink display stops outputting the third or fourth prompt message. Thus, by scanning the identification identifier of the e-ink display, the output of the prompt message is turned off, preventing the e-ink display from continuously outputting prompt messages and affecting the user's judgment.

[0048] In this embodiment of the invention, the server controls multiple readers to send first radio frequency (RF) signals to multiple RFID tags on e-ink screens. Then, after the RFID tags on the e-ink screens respond to the first RF signals and send multiple second RF signals to the readers, an abnormal RF signal with a signal strength less than a preset strength threshold is identified among the multiple second RF signals. The abnormal RFID tag of the e-ink screen is then identified based on the abnormal RF signal. Finally, the current location of the abnormal e-ink screen is determined based on the second RF signals between at least two readers and the RFID tags of the abnormal e-ink screen. Therefore, even when the RF signal is weak, the location of the abnormal e-ink screen can be determined based on the second RF signals between at least two readers and the RFID tags of the e-ink screen, making the determined location of the abnormal e-ink screen more accurate, allowing users to quickly maintain the abnormal e-ink screen.

[0049] It should be noted that, for the sake of simplicity, the method embodiments are all described as a series of actions. However, those skilled in the art should understand that the embodiments of the present invention are not limited to the described order of actions, because according to the embodiments of the present invention, some steps can be performed in other orders or simultaneously. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions involved are not necessarily essential to the embodiments of the present invention.

[0050] like Figure 3As shown in the diagram, an embodiment of the present invention provides a structural block diagram of an e-ink screen management device. The device is applied to a server; the server is connected to multiple readers; the multiple readers are connected to multiple e-ink screens via radio frequency signals; each e-ink screen is provided with a radio frequency identification tag. The device may specifically include the following modules: The signal transmitting module 301 is used to control the plurality of readers to send a first radio frequency signal to the radio frequency identification tags of the plurality of ink screens; The abnormal signal determination module 302 is used to determine an abnormal radio frequency signal among the multiple second radio frequency signals whose signal strength is less than a preset strength threshold after the radio frequency identification tags of the multiple e-ink screens send multiple second radio frequency signals to the multiple readers in response to the first radio frequency signal, and to determine the radio frequency identification tag of the abnormal e-ink screen based on the abnormal radio frequency signal. The location determination module 303 is used to determine the current location of the abnormal ink screen based on the second radio frequency signal between the at least two readers and the radio frequency identification tag of the abnormal ink screen.

[0051] In one embodiment, the position determination module 303 includes: The phase determination submodule is used to determine the phase between the at least two readers and the abnormal ink screen based on the second radio frequency signal between the at least two readers and the radio frequency identification tag of the abnormal ink screen; The position determination submodule is used to determine the current position of the abnormal ink screen based on the phase between the at least two readers and the abnormal ink screen.

[0052] In one embodiment, the location determination submodule includes: The acquisition unit is used to acquire the distance between the at least two readers; The first determining unit is used to determine the phase difference between the phases of the at least two readers and the abnormal ink screen; The second determining unit is used to determine the current position of the abnormal ink screen based on the distance between the at least two readers and the phase difference between the phases of the at least two readers and the abnormal ink screen.

[0053] In one embodiment, the server is also connected to a mobile terminal; the apparatus further includes: The acquisition module is used to acquire the reference position corresponding to the abnormal ink screen; A distance difference determination module is used to determine the distance difference between the reference position and the current position; The first information generation module is used to obtain the identity identifier of the abnormal e-ink screen when the distance difference is greater than a preset distance, generate a first prompt message based on the identity identifier and the first preset information, and send the first prompt message to the mobile terminal; the first prompt message indicates that the abnormal e-ink screen is abnormally deployed. The second information generation module is used to obtain the identity identifier of the abnormal ink screen when the distance is less than or equal to the preset distance, generate a second prompt message based on the identity identifier and the second preset information, and send the second prompt message to the mobile terminal; the second prompt message indicates that the abnormal ink screen is obstructed.

[0054] In one embodiment, the device further includes: The instruction receiving module is used to receive a first control instruction sent by the mobile terminal; the first control instruction is sent by the user through the mobile terminal according to the first prompt information or the second prompt information. A first instruction sending module is configured to send the first control instruction to the plurality of readers, so that the plurality of readers encrypt the first control instruction according to a preset key to obtain a first ciphertext, and send the first ciphertext to the RFID tags of the plurality of e-ink screens. The RFID tags of the plurality of e-ink screens decrypt the first ciphertext using the preset key to obtain the first control instruction. When the identifier of the RFID tag is the same as the identifier in the first control instruction, the RFID tags of the plurality of e-ink screens control the e-ink screen corresponding to the RFID tag to output a third prompt message.

[0055] In one embodiment, the device further includes: The list generation module is used to generate a sampled list of e-ink screens in response to the sampling and inventory command sent by the mobile terminal. The second instruction sending module is used to obtain the identification identifier corresponding to the ink screen in the ink screen list, generate a second control instruction based on the identification identifier, and send the second control instruction to the plurality of readers, so that the plurality of readers send the second control instruction to the radio frequency identification tag of the plurality of ink screens. When the identification identifier of the radio frequency identification tag is the same as the identification identifier in the second control instruction, the radio frequency identification tag of the plurality of ink screens controls the ink screen corresponding to the radio frequency identification tag to output a fourth prompt message.

[0056] In one embodiment, the device further includes: The instruction acquisition module is used to acquire a third control instruction sent by the user through scanning the identity identifier of the e-ink screen via the mobile terminal; the third control instruction is used to control the e-ink screen to stop outputting the third prompt information or the fourth prompt information; The third instruction sending module is used to send the third control instruction to the plurality of readers, so that the plurality of readers send the third control instruction to the RFID tags of the plurality of e-ink screens. When the identifier of the RFID tag is the same as the identifier in the third control instruction, the RFID tags of the plurality of e-ink screens control the e-ink screen corresponding to the RFID tag to stop outputting the third prompt information or the fourth prompt information.

[0057] In this embodiment of the invention, a signal transmitting module is used to control multiple readers to send first radio frequency signals to multiple RFID tags on e-ink screens; an abnormal signal determination module is used to determine abnormal radio frequency signals among the multiple second radio frequency signals whose signal strength is less than a preset strength threshold after the multiple RFID tags on the e-ink screens respond to the first radio frequency signals and send multiple second radio frequency signals to the multiple readers, and to determine the RFID tag of the abnormal e-ink screen based on the abnormal radio frequency signals; a position determination module is used to determine the current position of the abnormal e-ink screen based on the second radio frequency signals between at least two readers and the RFID tags of the abnormal e-ink screen. Therefore, when the radio frequency signal is weak, the position of the abnormal e-ink screen can be determined based on the second radio frequency signals between at least two readers and the RFID tags of the e-ink screen, making the determined position of the abnormal e-ink screen more accurate, so that users can quickly maintain the abnormal e-ink screen.

[0058] As the apparatus embodiment is basically similar to the method embodiment, it is described in a relatively simple manner. For relevant details, please refer to the description of the method embodiment.

[0059] This invention also provides an electronic device, including a processor, a memory, and a program or instructions stored in the memory and executable on the processor. When the program or instructions are executed by the processor, they implement the various processes of the above-described e-ink screen management method embodiments and achieve the same technical effects. To avoid repetition, they will not be described again here.

[0060] It should be noted that the electronic devices in the embodiments of the present invention include the mobile electronic devices and non-mobile electronic devices described above.

[0061] This invention also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described e-ink screen management method embodiments and achieve the same technical effects. To avoid repetition, they will not be described again here.

[0062] The processor is the processor in the electronic device described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0063] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0064] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, apparatus, or computer program products. Therefore, embodiments of the present invention can take the form of entirely hardware embodiments, entirely software embodiments, or embodiments combining software and hardware aspects. Furthermore, embodiments of the present invention can take the form of computer program products 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.

[0065] Embodiments of the present invention are described with reference to flowchart illustrations and / or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, as well as combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing terminal device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal device, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0066] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing terminal device to operate in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0067] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal equipment, causing a series of operational steps to be performed on the computer or other programmable terminal equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable terminal equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0068] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present invention.

[0069] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0070] The present invention has provided a detailed description of an e-ink screen management method, an e-ink screen management device, an electronic device, and a readable storage medium. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. An ink screen management method characterized by, The method is applied to a server; the server is connected with a plurality of readers and writers; The plurality of readers and writers are connected with a plurality of ink screens through radio frequency signals; each ink screen is respectively provided with a radio frequency identification tag, and the method comprises: Controlling the plurality of readers and writers to send first radio frequency signals to the radio frequency identification tags of the plurality of ink screens; After the radio frequency identification tags of the plurality of ink screens send a plurality of second radio frequency signals to the plurality of readers and writers in response to the first radio frequency signals, determining an abnormal radio frequency signal with a signal strength less than a preset strength threshold in the plurality of second radio frequency signals, and determining the radio frequency identification tag of an abnormal ink screen according to the abnormal radio frequency signal; According to the second radio frequency signals between at least two readers and writers and the radio frequency identification tag of the abnormal ink screen, determining the current position of the abnormal ink screen.

2. The ink screen management method of claim 1, wherein According to the second radio frequency signals between at least two readers and writers and the radio frequency identification tag of the abnormal ink screen, determining the current position of the abnormal ink screen, comprising: According to the second radio frequency signals between at least two readers and writers and the radio frequency identification tag of the abnormal ink screen, determining the phase difference between at least two readers and writers and the abnormal ink screen; According to the phase difference between at least two readers and writers and the abnormal ink screen, determining the current position of the abnormal ink screen.

3. The ink screen management method of claim 2, wherein, According to the phase difference between at least two readers and writers and the abnormal ink screen, determining the current position of the abnormal ink screen, comprising: Obtaining the distance between at least two readers and writers; Determining the phase difference between at least two readers and writers and the phase difference between at least two readers and writers and the abnormal ink screen; According to the distance between at least two readers and writers and the phase difference between at least two readers and writers and the abnormal ink screen, determining the current position of the abnormal ink screen.

4. The ink screen management method of claim 1, wherein The server is also connected with a mobile terminal; after determining the current position of the abnormal ink screen according to the second radio frequency signals between at least two readers and writers and the radio frequency identification tag of the abnormal ink screen, the method further comprises: Obtaining the reference position corresponding to the abnormal ink screen; Determining the distance difference between the reference position and the current position; When the distance difference is greater than a preset distance, obtaining the identity identifier of the abnormal ink screen, generating first prompt information according to the identity identifier and first preset information, and sending the first prompt information to the mobile terminal; the first prompt information represents that the position of the abnormal ink screen is abnormal; When the distance is less than or equal to the preset distance, obtaining the identity identifier of the abnormal ink screen, generating second prompt information according to the identity identifier and second preset information, and sending the second prompt information to the mobile terminal; the second prompt information represents that the abnormal ink screen is blocked.

5. The ink screen management method of claim 4, wherein, The method comprises: Receiving the first control instruction sent by the mobile terminal; the first control instruction is sent by the user through the mobile terminal according to the first prompt information or the second prompt information; The first control instruction is sent to the plurality of read-write devices, so that the plurality of read-write devices encrypt the first control instruction according to a preset key to obtain first ciphertext, the first ciphertext is sent to the radio frequency identification tags of the plurality of ink screens, the radio frequency identification tags of the plurality of ink screens decrypt the first ciphertext through the preset key to obtain the first control instruction, when the identity identifier of the radio frequency identification tag is the same as the identity identifier in the first control instruction, the radio frequency identification tags of the plurality of ink screens control the ink screens corresponding to the radio frequency identification tags to output third prompt information.

6. The ink screen management method of claim 5, wherein, The method comprises: In response to the sampling inventory instruction sent by the mobile terminal, a sampling ink screen list is generated; The identity identifier corresponding to the ink screen in the ink screen list is obtained, and a second control instruction is generated according to the identity identifier, the second control instruction is sent to the plurality of read-write devices, so that the plurality of read-write devices send the second control instruction to the radio frequency identification tags of the plurality of ink screens, when the identity identifier of the radio frequency identification tag is the same as the identity identifier in the second control instruction, the radio frequency identification tags of the plurality of ink screens control the ink screens corresponding to the radio frequency identification tags to output fourth prompt information.

7. The ink screen management method of claim 6, wherein, The method further comprises: A third control instruction sent by the user through the mobile terminal scanning the identity identifier of the ink screen is obtained; the third control instruction is used to control the ink screen to stop outputting the third prompt information or the fourth prompt information; The third control instruction is sent to the plurality of read-write devices, so that the plurality of read-write devices send the third control instruction to the radio frequency identification tags of the plurality of ink screens, when the identity identifier of the radio frequency identification tag is the same as the identity identifier in the third control instruction, the radio frequency identification tags of the plurality of ink screens control the ink screens corresponding to the radio frequency identification tags to stop outputting the third prompt information or the fourth prompt information.

8. An ink screen management device, characterized by comprising: The device is applied to a server; the server is connected with a plurality of read-write devices; The plurality of read-write devices are connected with a plurality of ink screens through radio frequency signal communication; each ink screen is respectively provided with a radio frequency identification tag, and the device comprises: A signal sending module is used to control the plurality of read-write devices to send first radio frequency signals to the radio frequency identification tags of the plurality of ink screens; An abnormal signal determination module is used to determine abnormal radio frequency signals with signal strength less than a preset strength threshold in the plurality of second radio frequency signals sent by the radio frequency identification tags of the plurality of ink screens to the plurality of read-write devices in response to the first radio frequency signals, and determine the radio frequency identification tags of abnormal ink screens according to the abnormal radio frequency signals; A position determination module is used to determine the current position of the abnormal ink screens according to the second radio frequency signals between the at least two read-write devices and the radio frequency identification tags of the abnormal ink screens.

9. An electronic device, comprising: The device comprises a processor, a memory, and a program or instruction stored on the memory and executable on the processor, and the program or instruction is executed by the processor to realize the steps of the ink screen management method as claimed in claims 1-7.

10. A readable storage medium, characterized by, The readable storage medium stores programs or instructions, which are executed by the processor to implement the steps of the ink screen management method according to claims 1-7.

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