Electronic tag management system

Abstract

The invention relates to the technical field of electronic tag management, in particular to an electronic tag management system, which is used for splitting a single original electronic tag into a basic sub-tag and an attribute sub-tag according to a pre-stored data segmentation rule, and the basic sub-tag and the attribute sub-tag are respectively used for storing basic identification information and detailed attribute information of a target object. The server is also used for receiving the binding association codes among the sub-tags so as to divide all the sub-tags corresponding to the original electronic tags into a basic tag group, a maintenance tag group and a test tag group according to a sub-tag grouping rule, and determining whether signal collision occurs or not according to the intensity change rate and the bit error rate of feedback signals of the basic tag group; and the working modes of the multi-signal radio frequency unit and the time slice distribution unit are determined according to the judgment result of whether the signal collision occurs or not. According to the invention, the possibility of signal collision when the reader receives the feedback signal due to the fact that a large number of tags are concentrated in the same test area is reduced, thereby improving the recognition speed.

Description

Technical Field

[0001] This invention relates to the field of electronic tag management technology, and in particular to an electronic tag management system. Background Technology

[0002] Electronic tag management systems leverage RFID, NFC, QR code, and IoT technologies to achieve rapid identification, precise positioning, and dynamic tracking of items. RFID technology, with its advantages of contactless identification, batch reading, and unique coding, has become a core infrastructure in logistics, manufacturing, and retail, and its innovative designs, including anti-interference, anti-drop, and anti-counterfeiting features, adapt to complex industrial scenarios. NFC and QR code technologies respectively meet the needs of near-field interaction and low-cost deployment. Their management systems store information through electronic tags and, combined with readers, middleware, and management software, construct a closed loop for data collection, transmission, and analysis, driving enterprises towards intelligent and automated management.

[0003] Chinese Patent Publication No. CN120012794B discloses an intelligent electronic tag management device, relating to the field of intelligent electronic tag management technology. Currently, in warehousing environments, goods are diverse, including large metal products, ordinary packaged goods, and small, precision goods. Traditional identification systems often employ a single frequency or simple antenna layout. For large metal products, the shielding and interference of radio frequency signals makes it difficult for signals to penetrate effectively, leading to difficulties in goods identification or information reading failures, and easily resulting in misreading and missed readings, affecting the reliability of inventory management. This invention rationally allocates radio frequency signal resources, avoiding signal conflicts and interference. In terms of antenna layout, it provides comprehensive, multi-layered signal coverage for different types of goods, greatly improving the success rate and accuracy of goods identification. Whether in the stages of goods receiving, inventory counting, or outbound, it can quickly and accurately obtain goods information, significantly improving the overall efficiency of warehousing operations. Therefore, it is evident that the existing technology has the following problems: When a large number of tags are concentrated in the same test area, the reader may experience signal collisions, which can lead to data transmission chaos and a significant decrease in recognition speed. Summary of the Invention

[0004] To address this issue, the present invention provides an electronic tag management system to overcome the problem in the prior art where a large number of tags are concentrated in the same test area, and the reader may experience signal collisions when receiving feedback signals, leading to chaotic data transmission and a significant decrease in recognition speed.

[0005] To achieve the above objectives, the present invention provides an electronic tag management system, comprising: The tag splitting module is used to split a single original electronic tag into a basic sub-tag and an attribute sub-tag according to a pre-stored data segmentation rule. The basic sub-tag and the attribute sub-tag are used to store the basic identification information and detailed attribute information of the target object, respectively. The basic sub-tag and the attribute sub-tag are bound together by an association code. The reader module includes a multi-channel radio frequency unit and a time slice allocation unit. The multi-channel radio frequency unit is used to send data read and write instructions to each sub-tag and receive the stored data fed back by each sub-tag. The time slice allocation unit is used to allocate a corresponding time slice sequence to each sub-tag. The collision control module is communicatively connected to the tag splitting module and the reader module, respectively, and is used to receive the binding association code between the sub-tags to divide all the sub-tags corresponding to each original electronic tag into a basic tag group, a maintenance tag group and a test tag group according to the sub-tag grouping rules. Furthermore, the system determines whether a signal collision has occurred based on the intensity change rate and bit error rate of the feedback signal from the basic tag group, and determines the operating mode of the multi-signal RF unit and the time slice allocation unit based on the determination result of whether a signal collision has occurred.

[0006] As a preferred technical solution for the electronic tag management system, the data segmentation rules pre-stored in the tag splitting module include: The original electronic tags are divided into basic information and detailed information according to the data category. The basic information is input into the basic sub-tag to store the basic identification information of the target object, and the number of attribute sub-tags and the information of each attribute sub-tag are determined according to the storage capacity of the detailed information. The basic information data categories include the unique identifier, model, and batch of the original electronic tag, while the detailed information data categories include maintenance records and testing records.

[0007] As a preferred technical solution for electronic tag management systems, the data segmentation rules determine the number of sub-tags corresponding to detailed attribute information and the information of each sub-tag based on the storage capacity of detailed information. Specifically, this includes: If the storage capacity of the detailed information is less than or equal to the preset capacity, it is determined that only one attribute sub-tag is included and that attribute sub-tag is recorded as a test sub-tag; In response to the storage capacity of detailed information exceeding the preset capacity, two attribute sub-labels are determined: a maintenance sub-label and a test sub-label.

[0008] As a preferred technical solution for electronic tag management systems, the tag splitting module determines the sub-identification code of each sub-tag based on the UID of the original electronic tag, and determines the association code between sub-tags by combining the identification code of the component under test.

[0009] As a preferred technical solution for the electronic tag management system, the collision control module sends data read / write commands to the basic tag group and determines whether a signal collision has occurred based on the intensity change rate and bit error rate of the feedback signal. Based on the collision determination result, the operating mode of the multi-signal RF unit and the time slice allocation unit is determined, wherein: In response to the absence of a signal collision, the current radio frequency channel is maintained, and the time slice allocation unit is controlled to allocate the same time slice to the maintenance tag group and the test tag group; In response to a signal collision, the basic tag group is divided into several information feedback groups according to the location based on the feedback signal. The information feedback groups of the corresponding maintenance tag group and test tag group are determined according to the association code of the basic sub-tags in each information feedback group. The multi-signal radio frequency unit is controlled to add a backup radio frequency channel, and the working mode of the time slice allocation unit is determined in combination with the collision determination cause.

[0010] As a preferred technical solution for electronic tag management systems, the collision control module sends data read / write commands to the basic tag group and determines whether a signal collision has occurred based on the intensity change rate and bit error rate of the feedback signal. If the intensity change rate is greater than a preset change rate and / or the bit error rate is greater than a preset error rate, then a signal collision is determined to have occurred. If the intensity change rate is less than or equal to a preset change rate, and the bit error rate is less than or equal to a preset error rate, then it is determined that no signal collision has occurred.

[0011] As a preferred technical solution for electronic tag management systems, the collision control module determines the working mode of the time slice allocation unit based on the collision determination cause, including: In response to the collision determination that the intensity change rate is greater than the preset change rate and the bit error rate is greater than the preset error rate, the collision control module determines that it only sends data read and write instructions to the test tag group and controls the time slice allocation unit to allocate different time slices to each information feedback group of the test tag group.

[0012] As a preferred technical solution for electronic tag management systems, the collision control module determines the working mode of the time slice allocation unit based on the collision determination cause, and also includes: In response to the collision determination that the intensity change rate is greater than the preset change rate or the bit error rate is greater than the preset error rate, the collision control module simultaneously sends data read / write instructions to the maintenance tag group and the test tag group, and controls the time slice allocation unit to allocate different time slices to the maintenance tag group and the test tag group.

[0013] As a preferred technical solution for electronic tag management systems, the number of information feedback groups in the basic tag group is the same as the number of radio frequency channels after adding backup radio frequency channels; The number of information feedback groups for the maintenance tag group and the number of information feedback groups for the test tag group are both equal to the number of information feedback groups for the basic tag group.

[0014] Compared with existing technologies, the beneficial effects of this invention are as follows: The electronic tag management system provided by this invention effectively solves the signal collision problem caused by the concentration of a large number of electronic tags in large-scale equipment testing through tag splitting and intelligent collision control; this system splits the original tag into basic sub-tags and attribute sub-tags, uses basic tag groups to quickly detect collisions, and achieves accurate judgment by combining the intensity change rate and CRC check failure rate; when a collision occurs, this system dynamically adjusts the radio frequency channel and time slice allocation, significantly reducing the collision probability and improving the identification speed and data accuracy; at the same time, the attribute information is subdivided into maintenance and test sub-tags, supporting on-demand reading to reduce invalid data transmission, and ensuring the priority transmission of key test data and the stability and reliability of the test process through group management and priority scheduling; this system has strong compatibility, flexible deployment, and can adapt to test scenarios of different scales and environments, greatly improving the efficiency and reliability of multi-tag concurrent management; In particular, by setting a preset capacity threshold, the system intelligently segments electronic tag data, separating and storing basic identification information from detailed attribute information. The number and type of attribute sub-tags are dynamically determined based on the storage capacity of the detailed information. When the detailed information is less than or equal to the preset capacity, only one test sub-tag is set to streamline data transmission. When the preset capacity is exceeded, the system automatically splits the data into maintenance and test sub-tags, storing maintenance records and test records respectively. This mechanism significantly reduces the amount of data transmitted in a single transmission while ensuring the integrity of critical information, effectively reducing the probability of signal collisions in scenarios with a large number of tags concentrated together. During testing, if a severe collision occurs, the system can read only the test sub-tag data, ensuring the stable acquisition of core detection information. This greatly improves the efficiency and reliability of multi-tag concurrent management, making it particularly suitable for high-density tag application scenarios such as reliability and compatibility testing of large equipment. In particular, by using basic tag groups as prior data for collision detection and combining the intensity change rate and CRC check failure rate as dual indicators, the system achieves rapid and accurate determination of signal collisions. When no collision occurs, the system maintains the current radio frequency channel and allocates the same time slice to each attribute tag group to ensure the balance of data transmission. When a collision occurs, the tag groups are divided into information feedback groups with the same number of radio frequency channels according to their positional relationship, and backup radio frequency channels are dynamically added. At the same time, the time slice allocation is optimized based on the cause of the collision, which significantly reduces the probability of collisions in multi-tag concurrent communication and improves the identification efficiency and data transmission stability. By reasonably setting a small preset change rate and preset CRC check failure rate, the system effectively suppresses misjudgments caused by environmental interference while ensuring collision detection sensitivity, enabling the system to maintain efficient and reliable operation in high-density tag scenarios such as large equipment testing. Attached Figure Description

[0015] Figure 1 This is a connection diagram of the electronic tag management system according to an embodiment of the present invention; Figure 2 This is a flowchart illustrating how the original electronic tags are split according to data segmentation rules in an embodiment of the present invention; Figure 3 This is a flowchart illustrating the operation of the collision control module in an embodiment of the present invention. Detailed Implementation

[0016] To make the objectives and advantages of the present invention clearer, the present invention will be further described below with reference to embodiments; it should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention.

[0017] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0018] It should be noted that in the description of this invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and is not intended to indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0019] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0020] It is understandable that during reliability and compatibility testing of large machines or equipment, a large number of components need to operate simultaneously, and each component has its own electronic tag. During the test, when a large number of tags are concentrated in the same test area, the reader may experience signal collisions, i.e., multiple tags send data to the reader at the same time, resulting in data transmission chaos and a significant decrease in recognition speed. This invention exists to solve this problem. This invention first splits the electronic identification code of each component into multiple sub-tags. The feedback information of the basic sub-tag (which stores only a small amount of data but can distinguish different components) is used to verify whether there is a collision problem. When a collision is determined, different adjustment measures (including adding backup radio frequency channels and allocating different feedback time slices) are determined according to the severity of the collision when receiving detailed attribute information, in order to solve the collision problem.

[0021] Please see Figure 1 The diagram shown is a connection diagram of an electronic tag management system according to an embodiment of the present invention. An embodiment of the present invention provides an electronic tag management system, including: The tag splitting module is used to split a single original electronic tag into a basic sub-tag and an attribute sub-tag according to a pre-stored data segmentation rule. The basic sub-tag and the attribute sub-tag are used to store the basic identification information and detailed attribute information of the target object, respectively. The basic sub-tag and the attribute sub-tag are bound together by an association code. It is understandable that a single original electronic tag information includes a basic sub-tag and at least one attribute sub-tag. Each sub-tag corresponding to the same original electronic tag has a unique association code, that is, the corresponding attribute sub-tag can be determined based on the basic sub-tag and its corresponding association code. The reader module includes a multi-channel radio frequency unit and a time slice allocation unit. The multi-channel radio frequency unit is used to send data read and write instructions to each sub-tag and receive the stored data fed back by each sub-tag. The time slice allocation unit is used to allocate a corresponding time slice sequence to each sub-tag. The collision control module is communicatively connected to the tag splitting module and the reader module, respectively, and is used to receive the binding association code between the sub-tags to divide all the sub-tags corresponding to each original electronic tag into a basic tag group, a maintenance tag group and a test tag group according to the sub-tag grouping rules. It should be understood that all sub-tags within a basic tag group are basic sub-tags; while the data types within a single attribute sub-tag include maintenance records and testing records. A single attribute sub-tag is split into two attribute sub-tags based on data category, denoted as the maintenance sub-tag and the testing sub-tag, to store maintenance records and testing records respectively. It can be understood that all sub-tags in the maintenance tag group are maintenance sub-tags, and all sub-tags in the test tag group are test sub-tags; in implementation, the number of sub-tags within each tag group is equal. Furthermore, the signal collision is determined based on the intensity change rate and bit error rate of the feedback signal of the basic tag group, and the operation mode of the multi-signal radio frequency unit and the time slice allocation unit is determined based on the determination result of whether a signal collision has occurred. It should be understood that RSSI reflects the signal power intensity received by the reader antenna. In single-tag communication, RSSI is relatively stable and its fluctuation is usually less than 1dB to 2dB. However, when there is a collision between multiple tags, the superposition of signals with different phases and frequencies causes drastic changes in amplitude. Therefore, when there is a signal collision, the RSSI value will fluctuate abnormally, that is, the rate of change of intensity will increase abnormally. It should be understood that BER (Bit Error Rate) is the proportion of erroneous bits in the received data. RFID tags typically use Manchester encoding, with each bit having a transition in the middle. When a collision occurs, the signals from multiple tags overlap, causing the transition positions to become disordered, resulting in a large number of bit errors and causing the BER value to rise significantly in a short period of time. In practice, the bit error rate is determined by the failure rate of CRC (Cyclic Redundancy Check), and the CRC failure rate is positively correlated with the bit error rate.

[0022] Please see Figure 2 The diagram shows a flowchart illustrating how the original electronic tags are split according to data segmentation rules in an embodiment of the present invention. Specifically, the data segmentation rules pre-stored in the tag splitting module include: The original electronic tags are divided into basic information and detailed information according to the data category. The basic information is input into the basic sub-tag to store the basic identification information of the target object, and the number of attribute sub-tags and the information of each attribute sub-tag are determined according to the storage capacity of the detailed information. The basic information data categories include the unique identifier, model, and batch of the original electronic tag, while the detailed information data categories include the maintenance records and testing records of the component corresponding to the original electronic tag.

[0023] Specifically, the data segmentation rules determine the number of sub-tags corresponding to the detailed attribute information and the information of each sub-tag based on the storage capacity of the detailed information, including: If the storage capacity of the detailed information is less than or equal to the preset capacity, it is determined that only one attribute sub-tag is included and that attribute sub-tag is recorded as a test sub-tag; In response to the storage capacity of detailed information exceeding the preset capacity, two attribute sub-labels are determined: a maintenance sub-label and a test sub-label.

[0024] It is understandable that if the storage capacity of detailed information is too large, it will consume too many resources during the information feedback process, thus increasing the possibility of information collision. Therefore, when the storage capacity is greater than the preset capacity, the attribute sub-label is set to two, one as a maintenance sub-label and the other as a test sub-label. During the experiment, if the information collision is serious, data read and write signals can be sent to the test label group to allow the test sub-labels of the test label group to provide information feedback.

[0025] In practice, the preset capacity is usually 20KB to 50KB, with 30KB being the preferred setting. A preset capacity that is too large will increase the probability of information collision.

[0026] Specifically, the tag splitting module determines the sub-identification code of each sub-tag based on the UID of the original electronic tag, and determines the association code between the sub-tags by combining the identification code of the component under test.

[0027] Understandably, the sub-identifier code consists of the UID of the original electronic tag and the specific data category. It can be the first letter of the specific data category or an English abbreviation. The UID can be set as a prefix or a suffix. The association code consists of the UID of the original electronic tag and the identification code of the component under test. The identification codes of all sub-tags of a single original electronic tag are the same. Therefore, all sub-tags of a single original electronic tag can be identified by an association code.

[0028] Understandably, by constructing sub-identification codes and association codes based on the original electronic tag UID and the identification code of the component under test, accurate association and rapid retrieval between sub-tags are achieved. The sub-identification code consists of a UID and a data category identifier, which not only ensures uniqueness but also intuitively reflects the data type, facilitating classification and management. The association code binds all sub-tags of the same original tag into a logical whole, and all related sub-tags can be located through a single association code, greatly simplifying the data organization and query process. This design not only improves the identification efficiency and data correlation in a multi-tag environment but also provides a reliable grouping basis for the collision control module, which helps to achieve fine-grained channel and time slice allocation. As a result, it significantly reduces the probability of signal collisions in high-density tag scenarios such as large-scale equipment testing, thereby improving the overall performance and stability of the system.

[0029] Please see Figure 3 The diagram shown illustrates the workflow of the collision control module in this embodiment of the invention. Specifically, the collision control module sends data read / write commands to the basic tag group and determines whether a signal collision has occurred based on the intensity change rate and bit error rate of the feedback signal. Based on the collision determination result, it determines the operating mode of the multi-signal radio frequency unit and the time slice allocation unit, wherein: In response to the absence of a signal collision, the current radio frequency channel is maintained, and the time slice allocation unit is controlled to allocate the same time slice to the maintenance tag group and the test tag group; in implementation, if only one attribute sub-tag is included, the time slice allocation unit is controlled to allocate the same time slice to each attribute sub-tag. In response to a signal collision, the basic tag group is divided into several information feedback groups according to the location based on the feedback signal. The information feedback groups of the corresponding maintenance tag group and test tag group are determined according to the association code of the basic sub-tags in each information feedback group. The multi-signal radio frequency unit is controlled to add a backup radio frequency channel, and the working mode of the time slice allocation unit is determined in combination with the collision determination cause.

[0030] It should be understood that the system flexibly adjusts communication resource configuration based on collision determination results: when no collision occurs, the current channel is maintained and time slices are evenly allocated to ensure the fairness and stability of data transmission; when a collision occurs, backup radio frequency channels are added and tag groups are divided into corresponding numbers of information feedback groups according to their location, achieving dual isolation in the spatial and frequency domains. This dynamic scheduling mechanism significantly reduces the probability of multiple tags communicating simultaneously, significantly improving the system's concurrent processing capability and overall throughput. This invention organically combines radio frequency channel expansion with time slice allocation, increasing the number of channels while optimizing the time slice allocation strategy based on the cause of collision: by dividing the basic tag group, maintenance tag group, and test tag group into the same number of information feedback groups and allocating independent communication resources to each group, orderly transmission of tag data is achieved; this collaborative optimization not only reduces signal collisions but also ensures the priority transmission of critical test data, improving the system's real-time performance and reliability in high-density tag scenarios.

[0031] Specifically, the number of information feedback groups in the basic tag group (the number of basic feedback groups) is the same as the number of radio frequency channels after adding backup radio frequency channels; The number of information feedback groups for maintaining the tag group (number of maintenance feedback groups) and the number of information feedback groups for testing the tag group (number of testing feedback groups) are both equal to the number of information feedback groups for the basic tag group.

[0032] In practice, one to three backup radio frequency channels are usually added, preferably one backup radio frequency channel.

[0033] In implementation, if the number of radio frequency channels after adding backup radio frequency channels is x, then the number of basic feedback groups, maintenance feedback groups, and test feedback groups are all x. In implementation, after the basic tag group is divided into multiple basic feedback groups according to the positional relationship, the corresponding maintenance feedback group and test feedback group are determined according to the association code of each basic sub-tag in the basic feedback group. It should be understood that information feedback groups can be divided according to their positional relationship along a certain direction. In one implementation, along a direction perpendicular to the ground, the electronic tags are divided into two information feedback groups, one above the other, according to their height order.

[0034] Specifically, the collision control module sends data read / write commands to the basic tag group and determines whether a signal collision has occurred based on the intensity change rate and bit error rate of the feedback signal. If the intensity change rate is greater than a preset change rate and / or the bit error rate is greater than a preset error rate, then a signal collision is determined to have occurred. If the intensity change rate is less than or equal to a preset change rate, and the bit error rate is less than or equal to a preset error rate, then it is determined that no signal collision has occurred. In implementation, the preset change rate and preset error rate should be set to a small value because the storage capacity of the basic sub-tags should be much smaller than the storage capacity of the attribute tag group. Therefore, when using the basic tag group as prior data, the preset change rate and preset error rate should be set to a small value in order to increase its representativeness. It should be understood that environmental interference (such as strong electromagnetic interference from motors and frequency converters in industrial workshops) can cause fluctuations in RSSI. If the threshold is too low, it is easy to make false judgments. Increasing the threshold can filter out some false fluctuations caused by environmental interference, while still capturing significant signal changes caused by collisions. Therefore, the preset change rate is usually 3dBm / ms to 5dBm / ms, preferably set to 4dBm / ms. It can be understood that dBm / ms is the unit of the rate of change of received signal strength, which represents how many dBm the signal strength changes per millisecond. It should be understood that a CRC check failure rate greater than a preset failure rate is used instead of a bit error rate greater than a preset error rate, and a CRC check failure rate less than or equal to a preset failure rate is used instead of a bit error rate less than or equal to a preset error rate; in implementation, the preset error rate is less than 10%, preferably set to 5%.

[0035] It should be understood that the present invention uses a basic tag group as the prior detection object, which has a small data volume and fast feedback speed, and can complete the collision state assessment in a short time. It uses two indicators, intensity change rate and CRC check failure rate, for judgment and sets reasonable thresholds, which not only ensures high sensitivity recognition of real collisions, but also effectively filters out false fluctuations caused by environmental interference, significantly improving the accuracy and reliability of collision detection.

[0036] Specifically, the collision control module determines the operating mode of the time slice allocation unit based on the collision determination cause, including: In response to the collision determination that the intensity change rate is greater than a preset change rate and the bit error rate is greater than a preset error rate, the collision control module determines that it only sends data read / write instructions to the test tag group and controls the time slice allocation unit to allocate different time slices to each information feedback group of the test tag group. It can be understood that the possibility of signal collision is relatively high at this time, and component testing requires more read / write detection test records. Therefore, only sending data read / write instructions to the test tag group makes the reader only accept detection test records, thereby reducing the chance of signal collision by reducing the transmission capacity. In addition, allocating different time slices to the test feedback group to stagger the transmission time of detection test records also reduces the possibility of signal collision.

[0037] Specifically, the collision control module determines the operating mode of the time slice allocation unit based on the collision determination cause, and also includes: In response to a collision determination caused by the intensity change rate being greater than a preset change rate or the bit error rate being greater than a preset error rate, the collision control module simultaneously sends data read / write instructions to both the maintenance tag group and the test tag group, and controls the time slice allocation unit to allocate different time slices to the maintenance tag group and the test tag group. It is understood that the probability of signal collision is relatively low at this time, therefore, data read / write instructions can be sent simultaneously to both the test tag group and the maintenance tag group so that the reader can simultaneously receive and detect test records and maintenance records. The possibility of signal collision is reduced simply by allocating different time slices to the test tag group and the maintenance tag group. It should be understood that the time slices for each test feedback group are the same, and the time slices for each maintenance feedback group are also the same, but the time slices for each test feedback group are different from the time slices for each maintenance feedback group.

[0038] Understandably, the collision detection and resource scheduling strategies adopted by this system do not depend on a specific hardware platform, are compatible with mainstream RFID protocols and devices, and have good versatility and scalability. The reasonable range of preset parameters provides flexible configuration space for different application scenarios, enabling the system to operate stably in complex environments such as industrial workshops and large equipment test sites, and has strong practicality and scalability.

[0039] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An electronic tag management system, characterized in that, include: The tag splitting module is used to split a single original electronic tag into a basic sub-tag and an attribute sub-tag according to a pre-stored data segmentation rule. The basic sub-tag and the attribute sub-tag are used to store the basic identification information and detailed attribute information of the target object, respectively. The basic sub-tag and the attribute sub-tag are bound together by an association code. The reader module includes a multi-channel radio frequency unit and a time slice allocation unit. The multi-channel radio frequency unit is used to send data read and write instructions to each sub-tag and receive the stored data fed back by each sub-tag. The time slice allocation unit is used to allocate a corresponding time slice sequence to each sub-tag. The collision control module is communicatively connected to the tag splitting module and the reader module, respectively, and is used to receive the binding association code between the sub-tags to divide all the sub-tags corresponding to each original electronic tag into a basic tag group, a maintenance tag group and a test tag group according to the sub-tag grouping rules. Furthermore, the system determines whether a signal collision has occurred based on the intensity change rate and bit error rate of the feedback signal from the basic tag group, and determines the operating mode of the multi-signal RF unit and the time slice allocation unit based on the determination result of whether a signal collision has occurred.

2. The electronic tag management system according to claim 1, characterized in that, The data segmentation rules pre-stored in the label splitting module include: The original electronic tags are divided into basic information and detailed information according to the data category. The basic information is input into the basic sub-tag to store the basic identification information of the target object, and the number of attribute sub-tags and the information of each attribute sub-tag are determined according to the storage capacity of the detailed information. The basic information data categories include the unique identifier, model, and batch of the original electronic tag, while the detailed information data categories include maintenance records and testing records.

3. The electronic tag management system according to claim 2, characterized in that, The data segmentation rules determine the number of sub-tags corresponding to the detailed attribute information and the information of each sub-tag based on the storage capacity of the detailed information, specifically including: If the storage capacity of the detailed information is less than or equal to the preset capacity, it is determined that only one attribute sub-tag is included and that attribute sub-tag is recorded as a test sub-tag; In response to the storage capacity of detailed information exceeding the preset capacity, two attribute sub-labels are determined: a maintenance sub-label and a test sub-label.

4. The electronic tag management system according to claim 1, characterized in that, The tag splitting module determines the sub-identification code of each sub-tag based on the UID of the original electronic tag, and determines the association code between the sub-tags in combination with the identification code of the component under test.

5. The electronic tag management system according to claim 1, characterized in that, The collision control module sends data read / write commands to the basic tag group and determines whether a signal collision has occurred based on the intensity change rate and bit error rate of the feedback signal. Based on the collision determination result, it determines the operating mode of the multi-signal RF unit and the time slice allocation unit, wherein: In response to the absence of a signal collision, the current radio frequency channel is maintained, and the time slice allocation unit is controlled to allocate the same time slice to the maintenance tag group and the test tag group; In response to a signal collision, the basic tag group is divided into several information feedback groups according to the location based on the feedback signal. The information feedback groups of the corresponding maintenance tag group and test tag group are determined according to the association code of the basic sub-tags in each information feedback group. The multi-signal radio frequency unit is controlled to add a backup radio frequency channel, and the working mode of the time slice allocation unit is determined in combination with the collision determination cause.

6. The electronic tag management system according to claim 5, characterized in that, The collision control module sends data read / write commands to the basic tag group and determines whether a signal collision has occurred based on the intensity change rate and bit error rate of the feedback signal. If the intensity change rate is greater than a preset change rate and / or the bit error rate is greater than a preset error rate, then a signal collision is determined to have occurred. If the intensity change rate is less than or equal to a preset change rate, and the bit error rate is less than or equal to a preset error rate, then it is determined that no signal collision has occurred.

7. The electronic tag management system according to claim 5, characterized in that, The collision control module determines the operating mode of the time slice allocation unit based on the collision determination cause, including: In response to the collision determination that the intensity change rate is greater than the preset change rate and the bit error rate is greater than the preset error rate, the collision control module determines that it only sends data read and write instructions to the test tag group and controls the time slice allocation unit to allocate different time slices to each information feedback group of the test tag group.

8. The electronic tag management system according to claim 7, characterized in that, The collision control module, based on the collision determination cause, determines the operating mode of the time slice allocation unit, and also includes: In response to the collision determination that the intensity change rate is greater than the preset change rate or the bit error rate is greater than the preset error rate, the collision control module simultaneously sends data read / write instructions to the maintenance tag group and the test tag group, and controls the time slice allocation unit to allocate different time slices to the maintenance tag group and the test tag group.

9. The electronic tag management system according to claim 5, characterized in that, The number of information feedback groups in the basic tag group is the same as the number of radio frequency channels after adding backup radio frequency channels; The number of information feedback groups in the maintenance tag group and the number of information feedback groups in the test tag group are both equal to the number of information feedback groups in the basic tag group.

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