Method for improving receiving success rate of electronic price tag data

Abstract

A method for improving the receiving success rate of electronic price tag data belongs to the technical field of electronic price tags, and comprises the following steps: S1, standardizing a task data packet by a background server; s2, the base station broadcasts data in a time-sharing manner, the server sends a processed task data packet to the base station, and the base station periodically broadcasts and transmits the data in a wireless manner; s3, electronic price tag data completion, including data receiving and detection of a data packet broadcasted by an electronic price tag receiving base station, logic judgment and disordered communication between nodes; and S4, task updating and feedback: executing the distributed task after data completion, sending a confirmation signal to the base station after task execution is finished, and marking a task execution state. The electronic price tag end is in the silent period at ordinary times and is only triggered when communicating with the base station, the continuous communication power consumption of the electronic price tag is reduced, the data complementation among a plurality of electronic price tags can be achieved, the data integrity rate is improved, the electronic price tag end can effectively communicate with the background base station, and data updating is achieved.

Description

Technical Field

[0001] This invention relates to the field of electronic price tag technology, and in particular to a method for improving the success rate of electronic price tag data reception. Background Technology

[0002] Electronic Shelf Labels (ESLs) are intelligent devices that use electronic display technology to replace traditional paper labels. They connect to the back-end management system via wireless communication technology to display real-time data such as product prices, promotional information, and inventory status. They are widely used in the retail industry, warehousing and logistics, and chain stores. Their core uses low-power electronic ink screens (E-Ink) or liquid crystal displays (LCDs) to ensure long battery life. The main functions and advantages are as follows: (1) Real-time updates: Price changes can be synchronized with one click in the back-end, avoiding errors caused by manual replacement; (2) Cost reduction and efficiency improvement: Reduces paper waste and labor costs, improving operational efficiency; (3) Interactive marketing: Supports displaying QR codes, promotion countdowns, etc., enhancing customer experience; (4) Environmental protection and sustainability: The paperless design conforms to the trend of green retail.

[0003] Although existing electronic shelf labels meet practical needs to some extent, they still have the following technical shortcomings due to their own structural and functional limitations. Specifically, the backend base station of existing electronic shelf labels uses a PCB antenna. The pointing angle of the antenna affects the radiation range. During the communication between the base station and the electronic shelf label itself, it is easily affected by factors such as obstruction and signal reflection, resulting in signal interference and attenuation. This causes some electronic shelf labels to partially lose data packets or fail to receive data packets at all during communication, thus preventing them from displaying the corresponding data normally. Summary of the Invention

[0004] To overcome the shortcomings of existing electronic price tags, which suffer from signal instability due to factors such as building obstruction or long distance when receiving base station data packets, resulting in incomplete or no data packets being received and ineffective data updates, this invention provides a method to improve the data reception success rate of electronic price tags. This method, through the combined action of related solutions, ensures that the electronic price tag terminal is normally in a silent period, only triggering when communicating with the base station. This reduces the power consumption of continuous communication and improves data integrity through data completion between multiple electronic price tags. Ultimately, this method enables the electronic price tag terminal to effectively communicate with the backend base station and update data.

[0005] The technical solution adopted by this invention to solve its technical problem is: A method to improve the success rate of receiving electronic price tag data includes the following steps: S1: The backend server standardizes the task data packets, and the specific server standardizes the task data packets to a fixed size; S2: The base station broadcasts data in a time-division manner, including the following steps: (1) The server sends the processed task data packets to the base station; (2) The base station periodically broadcasts the data wirelessly; S3: Electronic price tag data completion, including the following steps: (1) Data reception and detection: The electronic price tag receives the data packets broadcast by the base station and detects the integrity of its own task data units; (2) Judgment logic: If it detects that its own task data is missing, it records the missing task data units; if the target electronic price tag receives its own task data, it does not record it; (3) Unordered communication between nodes, including determining the sorting rules and conflict resolution; S4: Task update and feedback: After the electronic price tag completes the data completion, it executes the assigned task. After the task is completed, it sends an acknowledgment signal to the base station to mark the task execution status. If there are any failed electronic price tags, the base station optimizes the next round of data broadcasting and retransmission based on the status data.

[0006] Furthermore, in step S1, the task data packet includes multiple task units, each containing a unique identification code, data content, and a check code.

[0007] Furthermore, in step S2, the base station periodically broadcasts and transmits data wirelessly, setting a time period as a complete cycle, specifically divided into: a broadcast phase, in which complete data packets are sent within a certain time period, and a silent phase, in which electronic price tags conduct point-to-point communication within a certain time period.

[0008] Furthermore, in step S2, the data transmission specifically adopts 2.4G radio frequency communication technology.

[0009] Furthermore, in step S3, the sorting rules are as follows: electronic price tags that receive their own task data remain in a listening state; electronic price tags that lack their own task data broadcast the missing task data units in an unordered manner according to the recorded Task_ID; after receiving information containing the task data, the listening electronic price tag begins to establish point-to-point communication with the electronic price tag.

[0010] Furthermore, in step S3, conflict resolution, communication conflicts are avoided through a random backoff algorithm.

[0011] Compared with existing technologies, the beneficial effects of this invention are: (1) Standardized server packetization unifies the data format and reduces parsing errors, thus improving the communication efficiency between the base station and the price tag; (2) Time-division broadcasting and silent mechanism avoid conflicts between base station broadcasting and node communication through time slice division, thereby improving the overall throughput of the system; (3) Electronic price tags containing their own task data packets are in a listening state and can be used to complete data for other electronic price tags; (4) ACK feedback closed loop enables traceability of task execution status, and the base station can actively trigger retransmission of data packets. In summary, this invention has good application prospects. Attached Figure Description

[0012] Figure 1 This is a schematic flowchart of the present invention. Detailed Implementation

[0013] 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 embodiments of the present invention, and not all embodiments. 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.

[0014] Figure 1 As shown, a method for improving the success rate of receiving electronic price tag data includes the following process.

[0015] 1. Server-side standardization of task data packets: Specifically, the server standardizes task data packets to a fixed size (e.g., 40KB). Each task data packet contains a task unit: each unit includes a unique identifier (e.g., Task_ID: T001-TNNN), data content, and a checksum (e.g., CRC). For example, a 40KB packet contains four task data units (T1-T4), corresponding to the task data for the four target electronic price tags: Price Tag 1, Price Tag 2, Price Tag 3, and Price Tag 4.

[0016] 2. The base station time-sharing broadcast mechanism includes the following steps: (1) The back-end server of the electronic price tag sends the processed task data packet to the base station; (2) Periodic broadcast: For example, the base station has a complete cycle of 10 seconds, which is divided into a broadcast phase (5 seconds) to send the complete data packet; and a silent phase (5 seconds) to allow the electronic price tag to conduct point-to-point communication. The specific transmission strategy adopts wireless 2.4G radio frequency communication technology.

[0017] 3. Electronic price tag data completion process, specifically including the following steps. (1) Data reception and detection: Each electronic price tag receives the data packet broadcast by the base station and detects the integrity of its own task data unit; (2) Judgment logic: If it detects that its own task data is missing, for example, the target electronic price tag receives T2-T3 and its own task data T1 is missing, then it records the missing task data unit Task_ID. If the target electronic price tag receives its own task data, then it does not record it; (3) Unordered communication between nodes, sorting rules: Electronic price tags that have received their own task data keep listening. Electronic price tags that lack their own task data start broadcasting the missing task data unit in an unordered manner according to the recorded missing Task_ID. After receiving the information containing the task data, the listening electronic price tag starts to form point-to-point communication with the electronic price tag; Conflict resolution: Communication conflicts are avoided by random backoff algorithm (such as CSMA / CA); For example: Electronic price tag 1 (missing T1) broadcasts a request, and electronic price tag 2 (with T1 and T2) responds and sends T1 data to electronic price tag 1.

[0018] 4. Task update and feedback: Specifically, after the electronic price tag completes the data, it executes the assigned task (such as displaying advertisements on the screen). After the task is completed, it sends an ACK confirmation signal to the base station to indicate the task execution status (success / failure). If there are any failed electronic price tags, the base station optimizes the next round of broadcasting and retransmission based on the status data.

[0019] Figure 1 As shown, through all the above technical solutions, this invention achieves standardized server packetization, unifies data format, and reduces parsing errors, thus improving the communication efficiency between the base station and the price tag. Through time-division broadcasting and a silent mechanism, time-slice division avoids conflicts between base station broadcasting and node communication, improving the overall system throughput. Communication during the silent period is triggered only when necessary, reducing the power consumption of continuous communication by the electronic price tag. Since the electronic price tag containing its own task data packet is in a listening state, it can be used to complete data for other electronic price tags, improving data integrity through data completion between electronic price tags. It has the advantage of ACK feedback closed-loop, enabling traceability of task execution status, and the base station can actively trigger retransmission of data packets.

[0020] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. It will be apparent to those skilled in the art that the present invention is limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or basic characteristics. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0021] Furthermore, it should be understood that although this specification describes the embodiments, the embodiments do not necessarily contain only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A method for improving the success rate of receiving electronic price tag data, characterized in that, The process includes the following steps: S1: The backend server standardizes the task data packets, specifically by standardizing the task data packets to a fixed size. S2: The base station broadcasts data in a time-division manner, including the following steps: (1) The server sends the processed task data packet to the base station; (2) The base station periodically broadcasts the data wirelessly. S3: Electronic price tag data completion, including the following steps: (1) Data reception and detection: The electronic price tag receives the data packet broadcast by the base station and detects the integrity of its own task data unit; (2) Judgment logic: If the missing task data is detected, the missing task data unit is recorded; if the target electronic price tag receives its own task data, it is not recorded; (3) Unordered communication between nodes, including determining the sorting rules and conflict resolution. S4: Task Update and Feedback. After the electronic price tag completes the data supplementation, it executes the assigned task. After the task is completed, it sends an acknowledgment signal to the base station to indicate the task execution status. If there are any failed electronic price tags, the base station optimizes the next round of data broadcasting and retransmission based on the status data.

2. The method for improving the success rate of electronic price tag data reception according to claim 1, characterized in that, In step S1, the task data packet includes multiple task units, each containing a unique identification code, data content, and a check code.

3. The method for improving the success rate of electronic price tag data reception according to claim 1, characterized in that, In step S2, the base station periodically broadcasts data wirelessly, setting a time period as a complete cycle, specifically divided into: a broadcast phase, in which complete data packets are sent within a certain time period, and a silent phase, in which electronic price tags conduct point-to-point communication within a certain time period.

4. The method for improving the success rate of electronic price tag data reception according to claim 1, characterized in that, In step S2, data transmission specifically adopts 2.4G radio frequency communication technology.

5. The method for improving the success rate of electronic price tag data reception according to claim 1, characterized in that, In step S3, the sorting rules are as follows: electronic price tags that receive their own task data remain in a listening state; electronic price tags that lack their own task data broadcast the missing task data units in an unordered manner according to the recorded Task_ID. After receiving information containing the task data, the listening electronic price tags begin to establish point-to-point communication with the electronic price tags.

6. The method for improving the success rate of electronic price tag data reception according to claim 1, characterized in that, In step S3, during conflict resolution, communication conflicts are avoided using a random backoff algorithm.

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