Asset matching method, device and storage medium

Abstract

The present invention discloses an asset pairing method, device and storage medium, which relate to the field of asset management and are used to improve the reliability of asset pairing. The present invention comprises: polling all asset locations at least once, obtaining the signal strength value of the radio frequency tags counted at each asset location in each round; for each radio frequency tag, selecting the asset location with the maximum number of maximum signal strength values ​​for pairing. The present invention realizes high-efficiency and low-cost management of dense assets, is easy to upgrade and transform, can prevent cross-reading, and improves the reliability of asset pairing.

Description

Technical Field

[0001] The present invention relates to the field of asset management, and in particular to an asset matching method, device and storage medium. Background Art

[0002] Radio frequency (RFID) tags (including near field communication NFC or ultra-high frequency UHD RFID, etc.) have been widely used in the field of asset management due to their passive, low-cost and strong penetrability.

[0003] For asset management scenarios, radio frequency tags are connected to asset locations (usually in the form of spaces or ports), and the asset information of the asset locations is written into the radio frequency tags. During inventory, radio frequency identification modules such as RFID readers are used to scan radio frequency tags to obtain the asset information of the asset locations.

[0004] However, in scenarios such as intensive asset management, the distribution density of RFID tags is high, which can easily lead to missed reading or cross-reading during inventory. Cross-reading is manifested as unrelated RFID tags being counted at an asset point. In order to reduce the cross-reading phenomenon, the transmission power of the tag scanning module is usually reduced, but this can easily lead to missed reading, that is, the relevant RFID tags cannot be counted at the asset point.

[0005] Whether it is cross-reading or missed reading, it will affect the reliability of asset inventory. Summary of the invention

[0006] The object of the present invention is to provide an asset pairing method, device and storage medium to improve the reliability of asset pairing in order to solve all or part of the above-mentioned problems.

[0007] The technical solution adopted by the present invention is as follows:

[0008] An asset matching method, comprising:

[0009] Poll all asset locations at least once, and obtain the signal strength value of the RFID tags counted at each asset location in each round;

[0010] For each RFID tag, select the asset point where the maximum signal strength value appears the most times for pairing.

[0011] To solve the above problems, the present invention also provides an asset pairing device, which includes a pairing module and a radio frequency identification module. The pairing module polls all asset locations at least once through the radio frequency identification module to obtain the signal strength value of the inventoryed radio frequency tags at each asset location in each round; for each radio frequency tag, the pairing module selects the asset location with the maximum number of signal strength values ​​for pairing.

[0012] To solve the above problem, the present invention further provides another asset pairing device, which is configured as follows:

[0013] Obtaining the signal strength value of the radio frequency tags at each asset location obtained by polling all asset locations at least once; and

[0014] For each RFID tag, select the asset point where the maximum signal strength value appears the most times for pairing.

[0015] To solve the above problem, the present invention also provides another asset matching device, including a processor and a storage medium, wherein the storage medium stores a computer program, and the processor runs the computer program in the storage medium to execute the above asset matching method.

[0016] In order to solve the above problem, the present invention further provides a storage medium, wherein the storage medium stores a computer program, and running the computer program can execute the above asset pairing method.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0018] The present invention utilizes radio frequency tag technology to conduct contactless asset inventory, which can achieve high-efficiency and low-cost management of massive assets, and is particularly suitable for asset management scenarios of dumb resources. The present invention can directly add radio frequency tags under the existing asset management method, without the need to modify the management equipment or add any additional electrical circuits, and is convenient for upgrading and transformation. The asset matching strategy proposed in the present invention can take into account the two important indicators of missed reading and cross-reading, and improve the accuracy of matching asset points and resource information. Moreover, for different application scenarios, the number of inventory times can be determined by oneself, that is, the time consumption of the inventory can be determined, and the matching flexibility is high. In addition, the present invention can also be directly applied to the existing radio frequency tag system for asset matching, and has high universality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will now be described by way of example with reference to the accompanying drawings, in which:

[0020] Figure 1 This is an association diagram between resource points and radio frequency tags provided in an embodiment of the present application.

[0021] Figure 2 This is a diagram showing the port occupancy status of a fiber tray on a certain layer of an optical cross-connect box provided in an embodiment of the present application.

[0022] Figure 3 It is a diagram showing the relationship between radio frequency tags provided in an embodiment of the present application.

[0023] Figure 4This is a diagram showing the updating of the temporary mapping relationship of the radio frequency tag provided in the embodiment of the present application. DETAILED DESCRIPTION

[0024] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0025] Any feature disclosed in this specification (including any additional claims and abstract), unless otherwise stated, may be replaced by other equivalent or alternative features having similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0026] In order to solve the problem of missed reading or cross-reading that is easy to occur in dense asset inventory, the embodiment of the present application provides an asset matching method, device and storage medium, aiming to improve the reliability of asset matching. In the embodiment of the present application, the radio frequency tag mentioned can be NFC or UHF RFID, and can even be replaced by other electromagnetic induction tags.

[0027] In some embodiments, the asset matching method includes the following steps:

[0028] S1. Poll all asset locations at least once, and obtain the signal strength value of the RFID tags counted at each asset location in each round.

[0029] An asset point refers to the area or port corresponding to a resource. For example, each port on an optical cross-connect box is an asset point. A port has two states, idle or occupied. The occupied state means that an optical fiber is connected to the port. In the scenario where RFID tags are used for asset management, an RFID tag is connected to the optical fiber. For ports in the occupied state, there is an RFID tag corresponding to them, while ports in the idle state do not have corresponding RFID tags. During inventory, ports in the occupied state should be inventoried to the corresponding RFID tags. If they are not inventoried, it is considered a missed read. If other RFID tags are inventoried, it is considered a cross-read. Similarly, ports in the idle state should not be inventoried to any RFID tags.

[0030] like Figure 1The figure shows a schematic diagram of the association of multiple asset points with several RFID tags, wherein the asset points p12, p1n, p2n and pmn correspond to RFID tags respectively. As a feasible implementation method, in each round of inventory, the RFID pairing module polls from p11 to pmn, and can inventory the RFID tags t1, ti, tj and tu, and can also scan and obtain the signal strength value RSSI of each RFID tag at each asset point. For example, when polling the asset points p1n and p2n, the RFID tag t1 is scanned, and the RFID tag t1 will obtain the corresponding RSSI at the asset points p1n and p2n respectively. In the embodiment of the present application, the RFID module for scanning RFID tags can work in a larger transmission power mode to ensure that the RFID tags at each asset point can be identified.

[0031] As a feasible implementation method, in each polling, a relationship pair of the asset location and the corresponding signal strength value stored in the RFID tag is established for each RFID tag. Then, for each RFID tag, a relationship pair list will be obtained in each polling, which can be expressed as Ltv = {(pi, ri)}, where Ltv is the relationship pair list, (pi, ri) is the i-th relationship pair, where pi represents the asset location and ri represents RSSI.

[0032] S2. For each radio frequency tag, select the asset point where the maximum signal strength value appears the most times for pairing.

[0033] In some embodiments, selecting the asset point with the largest number of maximum signal strength values ​​for pairing includes:

[0034] In each polling, the asset point with the largest signal strength value is selected for each RF tag. Based on the relationship pair list (asset point and RSSI relationship pairs) established for each RF tag in each polling in the previous embodiment, in some embodiments, by traversing all relationship pairs and selecting pi in the relationship pair with the largest ri, the asset point with the largest RSSI is selected for each RF tag in each polling.

[0035] After all polls are completed, the asset point with the most occurrences is selected for each RFID tag pairing.

[0036] In each round of polling, each RFID tag will have a maximum RSSI value, which appears at a certain asset point in the polling. Due to the relationship of serial reading, the asset point where each RFID tag has the maximum value in each round of polling may not be the same. After all polling is completed, for each RFID tag, the asset point with the most occurrences is selected for pairing.

[0037] In some embodiments, the number of times the asset point corresponding to the maximum RSSI value appears can be represented by a count. For example, in each polling, the asset points selected for each RFID tag are counted. Then, after all pollings are completed, the asset point with the most occurrences selected for each RFID tag is paired, including: after all pollings are completed, the asset point with the most count value is paired for each RFID tag.

[0038] As a possible implementation method, in each polling, a temporary mapping relationship is established between the radio frequency tag and the selected asset location. If the temporary mapping relationship appears for the first time, the temporary mapping relationship is counted as 1. If the temporary mapping relationship does not appear for the first time, the count of the previous temporary mapping relationship is accumulated by 1; the count of the temporary mapping relationship is used as the count of the corresponding asset location.

[0039] In the specific implementation, in the first polling, after selecting pi corresponding to the maximum value of ri for the RF tag tv (referring to any RF tag), a temporary mapping relationship tv->pi between tv and pi is established, and the mapping times of the temporary mapping relationship is initialized to 1, expressed as tv->pi:1.

[0040] In each subsequent polling, the temporary mapping relationship of each RFID tag after the polling will be updated. For a newly added temporary mapping relationship (i.e., a temporary mapping relationship that appears for the first time), the mapping times of the temporary mapping relationship will be initialized to 1; for an existing temporary mapping relationship, the mapping times of the temporary mapping relationship will be accumulated by 1.

[0041] The number of pollings performed in the embodiments of the present application can be any integer greater than 0. As a feasible implementation method, the total number of pollings ensures that there is only one asset point with the largest signal strength value. For different application scenarios, it is crucial to select an appropriate number of pollings, and the operation time can be reduced as much as possible while ensuring the accuracy of the pairing relationship determination. For scenarios where there is no cross-reading, that is, when polling for the first time, the asset point and the radio frequency tag are in a one-to-one correspondence, and the minimum number of pollings of 1 can be selected; for scenarios where cross-reading is more serious, a larger number of pollings is required to ensure the accuracy of the pairing relationship determination, for example, the number of pollings is determined to be 3 or even more times.

[0042] The asset matching method of this application is applied in Figure 2 Taking the port resource management of a flange plate (a fiber tray on a certain layer) on the optical cross-connect box as an example, the radio frequency tag adopts an RFID tag, and the polling tool adopts an RFID identification module. The asset matching method of the embodiment of the present application includes:

[0043] 1) Set the RFID identification module to scan the RFID tags with a larger transmission power to ensure that all RFID tags within the operating range can be identified.

[0044] 2) Configure the RFID identification module to identify the RFID tags of each port (i.e., asset location) in turn in a polling manner, and record the RFID tags (which can be represented by tag ID) and RSSI list identified by each port.

[0045] 3) After polling all ports, the list of all currently existing tag IDs L = [t1, t2, t3, t4, t5, t6] can be obtained.

[0046] 4) Using tag ID t1 as index, create a list Mt1 = {(p1, -30), (p2, -33)} of tag ID t1, port pi stored in the RFID tag, and corresponding RSSIri (in dBm), such as Figure 3 shown.

[0047] 5) Select the port number corresponding to the maximum RSSI value in the list Mt1, that is, p1, establish a temporary mapping relationship t1->p1 between tag ID t1 and port number p1, and initialize the mapping times counter to 1 to obtain a temporary mapping relationship list, that is, t1->p1:1.

[0048] 6) Traverse the list L and repeat step 4 to obtain the inventoryable port and RSSI list Mtv (v = 2, ..., 6) of all RFID tags, such as Figure 3 shown.

[0049] 7) Traverse the RFID tag's inventoryable port and RSSI list Mtv, repeat step 5, and establish a temporary mapping relationship between all tag IDtv (v=2,...,6) and port pi (i=1,...,8), that is, t2->p3:1, t3->p4:1, t4->p5:1, t5->p7:1, t6->p8:1.

[0050] 8) The transmission power can be appropriately reduced, and steps 2 to 7 are repeated to complete the specified number of inventory rounds w in sequence, and a temporary mapping relationship between the tag ID tv (v=1,...,6) and the port pi (i=1,...,8) is obtained in each round.

[0051] 9) After each round of inventory, for newly added temporary mapping relationships, the mapping times counter is initialized to 1; when an existing temporary mapping relationship is established again, the corresponding mapping times counter is incremented by 1, and the temporary mapping relationship list of all tag IDs is updated in sequence (such as Figure 4 shown).

[0052] 10) After completing w rounds of inventory (self-designed), the final temporary mapping relationship list of all labels is obtained. The ports with the largest corresponding mapping times counter are selected to obtain the final mapping relationship between all label IDs and ports, which is expressed as: t1->>p1, t2->>p3, t3->>p4, t4->>p6, t5->>p7, t6->>p8.

[0053] In some embodiments, the asset pairing device provided by the present application includes a pairing module and a radio frequency identification module. The pairing module polls all asset locations at least once through the radio frequency identification module to obtain the signal strength value of the radio frequency tags counted at each asset location in each round; for each radio frequency tag, the pairing module selects the asset location with the maximum number of signal strength values ​​for pairing.

[0054] In some other embodiments, the asset pairing device provided by the present application is configured as follows:

[0055] Obtaining the signal strength value of the radio frequency tags at each asset location obtained by polling all asset locations at least once; and

[0056] For each RFID tag, select the asset point where the maximum signal strength value appears the most times for pairing.

[0057] In other embodiments, the asset pairing device provided in the present application includes a processor and a storage medium, in which a computer program is stored. The processor runs the computer program in the storage medium to execute the asset pairing method in the above embodiments.

[0058] In addition, an embodiment of the present application further provides a storage medium, which stores a computer program, and running the computer program can execute the above-mentioned asset pairing method.

[0059] For the features involved in the asset pairing device provided in the embodiments of the present application, reference may be made to the corresponding features in the above-mentioned asset pairing method during specific implementation.

[0060] The present invention is not limited to the above-mentioned specific embodiments, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. An asset matching method, characterized in that: include: Poll all asset locations at least once, and obtain the signal strength value of the RFID tags counted at each asset location in each round; For each RFID tag, select the asset point where the maximum signal strength value appears the most times for pairing.

2. The asset matching method according to claim 1, characterized in that: The selection of asset points with the largest number of maximum signal strength values ​​for pairing includes: In each poll, the asset point with the largest signal strength value is selected for each RFID tag; After all polls are completed, the asset point with the most occurrences is selected for each RFID tag pairing.

3. The asset matching method according to claim 2, characterized in that: In each polling, a relationship pair between the asset location and the corresponding signal strength value stored in the RFID tag is established for each RFID tag; In each polling, selecting the asset point with the largest signal strength value for each radio frequency tag includes: traversing all the relationship pairs and selecting the asset point in the relationship pair with the largest signal strength value.

4. The asset matching method according to claim 2, characterized in that: In each poll, the asset points selected for each RFID tag are counted; The method of pairing each radio frequency tag with the selected asset point with the largest number of occurrences after all pollings are completed includes: pairing each radio frequency tag with the asset point with the largest count value after all pollings are completed.

5. The asset matching method according to claim 4, characterized in that: In each polling, the asset points selected for each radio frequency tag are counted, including: In each polling, a temporary mapping relationship is established between the RFID tag and the selected asset location. If the temporary mapping relationship appears for the first time, the temporary mapping relationship is counted as 1. If the temporary mapping relationship does not appear for the first time, the count of the previous temporary mapping relationship is accumulated by 1. The count of the temporary mapping relationship is used as the count of the corresponding asset location.

6. The asset matching method according to any one of claims 1 to 5, characterized in that: The total number of polling times ensures that there is only one asset point with the highest number of maximum signal strength values.

7. An asset matching device, characterized in that: The system comprises a pairing module and a radio frequency identification module. The pairing module polls all asset locations at least once through the radio frequency identification module to obtain the signal strength value of the radio frequency tags counted at each asset location in each round. For each radio frequency tag, the pairing module selects the asset location with the maximum signal strength value for the most times for pairing.

8. An asset matching device, characterized in that: The asset pairing device is configured to: Obtaining the signal strength value of the radio frequency tags at each asset location obtained by polling all asset locations at least once; and For each RFID tag, select the asset point where the maximum signal strength value appears the most times for pairing.

9. An asset matching device, comprising a processor and a storage medium, characterized in that: The storage medium stores a computer program, and the processor runs the computer program in the storage medium to execute the asset pairing method according to any one of claims 1 to 6.

10. A storage medium storing a computer program, characterized in that: Running the computer program can execute the asset pairing method as described in any one of claims 1 to 6.

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