Asset group pairing system, method and control unit

Abstract

The invention discloses an asset group pairing system, an asset group pairing method and a control unit, relates to the field of Internet of Things, and is used for realizing low-cost, high-efficiency and high-reliability intelligent pairing management of asset groups. According to the invention, the control instruction is generated and issued to the plurality of antenna acquisition boards, so that the antenna units of each antenna acquisition board work one by one, and the RFID tags on the asset point locations are respectively scanned; wherein each antenna acquisition board comprises a plurality of antenna units, and the antenna acquisition units are installed at the asset point locations one by one. And associating each asset point location with the assets corresponding to the RFID tags scanned by the antenna units at the asset point locations one by one. The method has the characteristics of low cost, high pairing efficiency and high reliability, and can be applied to one-to-one and one-to-many scenes.

Description

Technical Field

[0001] The present invention relates to the field of Internet of Things, and in particular to an asset group pairing system, an asset group pairing method, and an asset group pairing control unit. Background Art

[0002] The most widely used RFID (Radio Frequency Identification) technologies are NFC (Near Field Communication) and UHF (Ultra High Frequency) RFID technologies. NFC is a short-range, contactless wireless communication technology. Since NFC works in the high-frequency RFID spectrum of 13.56MHz, it can only read tags within 10 cm. The whole process is simple, fast and highly secure. It is widely used in identity cards, access cards and other fields related to identity identification and personnel management. As an important branch of RFID, UHF RFID works at 840MHz to 960MHz and has a longer transmission distance than NFC. Due to the core advantages of tags such as passivity, low cost, strong penetration, data encryption, large storage capacity, and multiple read and write, UHF RFID technology has been widely used in various industries such as asset management, warehousing and logistics, service trade and retail, medical care, tobacco and alcohol.

[0003] In recent years, the cost of RFID identification equipment (such as UHF RFID readers and writers, NFC readers, etc.) and tags has dropped significantly. Based on the above situation, a large number of companies have gradually begun to adopt RFID technology (such as UHF RFID, NFC, etc.) for asset inventory, network operation and maintenance, personnel and vehicle management, and other visual management.

[0004] On the other hand, 5G has been commercialized on a large scale, and the research and development of 6G is also on the agenda. At the same time, with the rapid development of information technology, the scale of fiber optic network construction is becoming increasingly large. The number of jumpers and pigtails in indoor and outdoor distribution boxes and optical cross-connect boxes can reach thousands, and these assets need to be effectively counted. Traditional optical distribution network management mostly uses QR codes to mark fiber adapters, jumpers or pigtails to achieve basic line maintenance and business management. This method not only requires a lot of manpower for registration in the early stage, which is costly and inefficient, but also prone to wear and fall off of paper labels, causing some fiber ports to be idle for a long time (eventually becoming "dead fibers"), and also brings great safety hazards to line maintenance.

[0005] For the pairing and classification identification scenarios of dense assets such as the port and pigtail pairing of optical cross-connect boxes, although the use of near-field antennas in hardware and the reduction of transmission power can be used to minimize cross-reading. However, in actual interference scenarios, blindly reducing the transmission power will introduce another troublesome problem: missed reading. Missed reading or cross-reading in actual applications will cause serious troubles to system asset management and affect the reliability of asset management, thereby limiting the large-scale promotion and application of RFID. Currently known research does not have a complete system solution that can perfectly solve the above-mentioned dense asset pairing and classification identification problems. Therefore, a low-cost, high-efficiency, and high-reliability system solution is imminent for the application of dense asset pairing and classification identification such as optical cross-connect boxes. Summary of the invention

[0006] The object of the present invention is to provide an asset group pairing system, method and control unit to address all or part of the above-mentioned problems, so as to realize low-cost, high-efficiency and high-reliability intelligent pairing management of asset groups based on RFID technology.

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

[0008] An asset group matching system, comprising:

[0009] The control unit issues a control instruction; and associates each asset point with an asset corresponding to an RFID tag scanned at the asset point;

[0010] At least one antenna collection board connected to the control unit signal; each of the antenna collection boards includes at least one antenna unit, and each antenna collection unit is installed one by one at each asset point;

[0011] At least one RFID tag, each of the RFID tags being connected to each of the assets;

[0012] The antenna units of each antenna acquisition board that receives the control instruction work one by one under the control instruction to scan the RFID tags on the asset points respectively, and transmit the scanned RFID tags to the control unit.

[0013] Furthermore, each of the antenna collection boards works in sequence.

[0014] Further, the control instruction includes a digital control signal and a radio frequency scanning signal;

[0015] Each of the antenna acquisition boards works in sequence under the action of the digital control signal; the currently working antenna unit sends out the radio frequency scanning signal to scan the RFID tag on the asset point.

[0016] Furthermore, each of the antenna collection boards works simultaneously.

[0017] Further, the control instruction is a digital control signal;

[0018] Each of the antenna acquisition boards works simultaneously under the action of the digital control signal; the antenna acquisition board in the working state generates a radio frequency scanning signal to its currently working antenna unit, so that the antenna unit scans the RFID tag at the asset point where it is located.

[0019] Furthermore, all antenna units of each antenna collection board are arranged in rows or columns at each asset point.

[0020] Furthermore, under the action of the control instruction, the antenna unit that scans more than one RFID tag will work multiple times, or multiple antenna units that scan the same RFID tag will work multiple times respectively; the control unit determines the real RFID tag of the asset point where the antenna unit is located based on the signal strength RSSI or number statistics of each RFID scanned multiple times.

[0021] Furthermore, the control unit issues the control instruction under the group pairing command of the host computer; the control unit also reports the association result between each asset point and the asset to the host computer.

[0022] To solve all or part of the above problems, the present invention also provides an asset group matching method, which comprises:

[0023] Generate a control instruction and send it to at least one antenna acquisition board, so that each antenna unit of each antenna acquisition board that receives the control instruction works one by one under the control instruction to scan the RFID tags on the asset points respectively; wherein each antenna acquisition board includes at least one antenna unit, and each antenna acquisition unit is installed one by one at each asset point;

[0024] Each asset point is associated one by one with the asset corresponding to the RFID tag scanned by the antenna unit at the asset point.

[0025] The present invention also provides an asset group pairing control unit, which is configured as follows:

[0026] Sending a control instruction to at least one antenna acquisition board, so that each antenna unit of each antenna acquisition board that receives the control instruction works one by one under the control instruction to respectively scan the RFID tags on the asset points; wherein each antenna acquisition board includes at least one antenna unit, and each antenna acquisition unit is installed one by one at each asset point; and,

[0027] Each asset point is associated with the asset corresponding to the RFID tag scanned at the asset point.

[0028] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0029] The present invention only needs one control unit and a certain number of antenna acquisition boards to realize the pairing of asset groups based on RFID tag binding. The antenna acquisition board only includes multiple antenna units, or also includes a radio frequency signal generating module, and the system construction cost is low. After the control unit issues a control instruction, the system automatically scans the assets at each asset point, and no manual intervention is required even for a large number of assets. Compared with the manual scanning or manual identification pairing method, the pairing efficiency is greatly improved; especially when each antenna acquisition board works synchronously, the pairing efficiency of the system is independent of the number of asset groups, which further improves the pairing efficiency. The antenna units on each antenna acquisition board of the present invention work one by one, avoiding the problem of signal interference between each other, and can effectively reduce the phenomenon of missing tags and ensure reading performance; in addition, the installation position of the antenna unit and the design of working in sequence can effectively prevent the phenomenon of cross-reading, and cooperate with the logic of judging the authenticity of the RFID tag based on the RSSI of multiple scans and the number of valid reads, so as to prevent the phenomenon of cross-reading and improve the reliability of the pairing result. In addition, the present invention does not need to modify the wiring and installation structure of the existing asset group, but only needs to install the corresponding antenna unit and RFID tag, and does not need to interrupt the existing business. The present invention triggers the pairing process by a control instruction, and thus can be configured as automatic pairing or on-demand pairing as needed, and can realize remote pairing control. Moreover, the present invention can be applied to both "one-to-one" asset pairing and "one-to-many" asset pairing, and has a wide range of applications. The antenna units of the present invention have a one-to-one correspondence with the asset locations, and when performing an asset inventory, they can also automatically clear out idle asset locations, which is convenient for subsequent asset installation and allocation and planning of asset locations. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will now be described by way of example with reference to the accompanying drawings, in which:

[0031] Figure 1 Schematic diagram of idle ports ((a) in the figure) and occupied ports ((b) in the figure).

[0032] Figure 2 It is a structural diagram of an antenna collection board in one embodiment.

[0033] Figure 3 It is a structural diagram of the antenna collection board in another embodiment.

[0034] Figure 4 The asset group matching system Figure 2Structural diagram of the antenna collection board embodiment of the embodiment.

[0035] Figure 5 The asset group matching system Figure 3 Structural diagram of the antenna collection board embodiment of the embodiment. DETAILED DESCRIPTION

[0036] 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.

[0037] 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.

[0038] Example 1

[0039] This embodiment introduces an asset group matching system, which can be applied to matching inventory of dense assets such as optical delivery port number matching, warehouse logistics asset partition matching, etc.

[0040] In some embodiments, the asset group matching system includes a control unit, multiple antenna collection boards, and multiple RFID tags. The control unit is connected to the antenna collection boards respectively. Each antenna collection board includes multiple antenna units, and each antenna collection unit is installed one by one at each asset point. Each RFID tag is connected to each asset one by one.

[0041] The control unit is configured to: issue control instructions to each antenna acquisition board; and associate each asset point with the asset corresponding to the RFID tag scanned at the asset point.

[0042] The antenna acquisition board is configured to: in response to receiving the control instruction, control each antenna unit thereof to work one by one under the control instruction, so as to scan the RFID tags at the asset locations respectively, and transmit the scanned RFID tags to the control unit.

[0043] Since each antenna unit is installed at each asset point, the asset with the most RFID tags determined by the antenna unit will occupy the asset point where the antenna unit is located. That is, the asset corresponding to the RFID tag determined by the antenna unit will match the asset point where the antenna unit is located.

[0044] To facilitate the explanation of the system, the system is introduced in detail below by taking its application on an optical cross-connect box port as an example.

[0045] Multiple antenna acquisition boards are installed on the ports of the optical cross-box respectively. In some embodiments, each antenna unit of each antenna acquisition board is installed on the port of the optical cross-box in rows or columns. For example, the ports on the optical cross-box are arranged in an array, and each antenna unit of the first antenna acquisition board is installed on the port of the first row / first column of the optical cross-box, and each antenna unit of the second antenna acquisition board is installed on the port of the second row / second column of the optical cross-box. The same is true for other antenna acquisition boards, that is, the antenna units of one row or one column are used as an antenna group for port pairing.

[0046] Pigtails are connected to some or all ports of the optical cross-connect box, and RFID tags are connected to each pigtail, for example, the RFID tag can be attached to the pigtail, or the RFID tag can be directly integrated into the optical fiber connector. The RFID tag encodes the business type, production date, manufacturer, serial number and other related information corresponding to the connected pigtail, and this information is stored in the storage area of ​​the RFID tag, such as EPC, User area, etc., and can be read out by scanning with the antenna unit.

[0047] like Figure 1 As shown in (a), a square is used to represent an antenna unit, and the number of the antenna unit is defined as pij, where i represents the i-th row of the port array and j represents the j-th column. Figure 1 As shown in (b), a circle is used to represent an RFID tag, and the RFID tag is identified by tv, where v represents the current asset serial number. If a port does not have a corresponding pigtail, that is, the antenna unit of the port does not have a corresponding RFID tag, such as Figure 1 As shown in (a), the port is an idle port; if the antenna unit of the port has an RFID tag corresponding to it, the port is an occupied port. Therefore, in this embodiment, during the pairing process of the optical cross-connect box port and the pigtail, it is possible to find out which ports are idle ports and which ports are occupied ports, thereby facilitating the planning of port usage in the later stage.

[0048] like Figure 2 As shown, in some embodiments, the antenna acquisition board includes only one group of antenna units. Assuming that there are n antenna units on the antenna acquisition board (which may be the same as the number of ports in a row of the optical cross-connect box, or greater than the number), the antenna units installed on the first row of ports are numbered p11, p12, ... p1n. For the antenna acquisition board of this structure, since the identification module generated by the external RF scanning signal is shared, and the RF scanning signal decreases step by step as the number of antenna acquisition boards increases, each antenna acquisition board needs to work in turn in time-sharing, and the total number of antenna acquisition boards in the system is also limited.

[0049] In other embodiments, such as Figure 3As shown, in addition to a group of antenna units, the antenna acquisition board also includes an identification module connecting these antenna units. In this way, each antenna acquisition board can generate a radio frequency scanning signal by itself, and is no longer restricted by the generation of external radio frequency scanning signals and the gradual attenuation of radio frequency signals, so each antenna acquisition board can work at the same time. In addition, the number of antenna acquisition boards in the system is not limited.

[0050] To facilitate the distinction, Figure 2 The antenna acquisition board of the embodiment is called antenna acquisition board A. Figure 3 The antenna acquisition board of the embodiment is referred to as antenna acquisition board B. The following introduces the implementation methods of the antenna acquisition boards of these two structures.

[0051] 1. Implementation method 1:

[0052] The system includes multiple Figure 2 The antenna identification acquisition board shown in the figure assumes that the optical cross-connect box contains m×n (m rows and n columns) ports, then the system includes a total of m antenna acquisition boards, and the antenna units of the kth antenna acquisition board are numbered pk1, pk2...pkn in sequence.

[0053] like Figure 4 As shown, the system includes a control unit composed of an MCU, an identification module, and a communication module (used for communication with a host computer, which occurs before or after pairing and is not required during pairing). The control unit cascades the m antenna acquisition boards step by step through switches. The control unit and each antenna acquisition board are connected by both digital control lines and RF signal lines. The MCU is used to generate a digital control signal, and the identification module is used to generate a RF scanning signal S Reader , and receive the signal S fed back by the RFID tag tag The control instructions generated by the control unit include both digital control signals and radio frequency scanning signals. Each antenna acquisition board works in sequence under the action of the digital control signal; for the antenna acquisition board in the working state, its antenna units work one by one, and the currently working antenna unit sends out the radio frequency scanning signal to scan the RFID tag at the asset point.

[0054] For this implementation, the RF scanning signal will be attenuated when it is transmitted through the RF signal lines at each level. As the number of antenna acquisition boards increases, the number of switch cascades increases, and the RF scanning signal S of the identification module received by the antenna acquisition board at the end of the cascade is Reader The weaker the signal returned by the RFID tag received by the antenna unit, the signal S that is transmitted to the identification module through the RF connection line tag The RF scanning signal S Reader The strength of will affect the activation of RFID tags, and the RF scanning signal S ReaderWhether the demodulation and decoding can be successful depends on the receiving sensitivity of the RFID tag. tag Whether demodulation and decoding can be successful depends on the receiving sensitivity of the identification module.

[0055] Therefore, in this implementation, the system only needs a control unit with an MCU and an identification module, and multiple antenna acquisition boards with only switches (to control the switch status of the antenna acquisition board) and a group of antenna units. The overall system construction cost is low, and no manual intervention is required. The degree of automation is high, and the pairing efficiency can be greatly improved compared to the manual counting method. Each antenna unit is installed on the port one by one, and works one by one, which can effectively prevent cross-scanning and ensure the accuracy of the scanning results of the RFID tag.

[0056] However, this method is limited by the activation conditions of the RFID tag, as well as the receiving sensitivity of the RFID tag and the identification module. The number of antenna acquisition boards that can be connected to a single control unit is limited. In addition, each antenna acquisition board can only work in time-sharing mode, and the system recognition and pairing efficiency still has room for improvement. For scenarios with too many asset locations, although the current inventory efficiency has been improved, it still takes a lot of time. At the same time, the RF signal line connection between the control unit and the antenna acquisition board will have problems such as electromagnetic compatibility and stability, which will also make the wiring relationship of the entire system cumbersome and complicated, affecting the stability and aesthetics of the system.

[0057] In this regard, according to an embodiment of the present application, another system architecture is provided, namely, implementation mode 2.

[0058] 2. Implementation Method 2:

[0059] The system includes multiple Figure 3 The antenna acquisition board shown in Figure 2 Based on the embodiment, each antenna acquisition board has an independent identification module.

[0060] Since each antenna acquisition board has an identification module, the control unit side no longer needs an identification module, and only needs an MCU and a communication module. Figure 5 As shown. The control command generated by the control unit only needs a digital control signal. Each antenna acquisition board works simultaneously under the action of the digital control signal. The antenna acquisition board in the working state (by its identification module) generates a radio frequency scanning signal to its currently working antenna unit, so that the antenna unit scans the RFID tag at the asset point.

[0061] Specifically, the control unit cascades each antenna acquisition board step by step through the switch, and controls each antenna acquisition board to read the corresponding RFID tag one by one. Since each antenna acquisition board has an identification module, only digital control lines are needed between the control unit and each antenna acquisition board, so there is no signal attenuation problem in the first implementation method. In this implementation method, each antenna acquisition board includes an identification module, so multiple antenna acquisition boards can work at the same time, improving the system recognition efficiency. At the same time, the system construction cost is also higher than the first implementation method. However, considering the close-range recognition scenarios such as optical fiber port pairing of optical cross-boxes, the recognition module can use an NFC module or a low-cost UHF RFID reader-writer module, and the overall cost is not much increased compared to the first implementation method. In this implementation method, no radio frequency connection line is required between the control unit and the antenna acquisition board, and only signal transmission is considered. In theory, an unlimited number of antenna acquisition boards can be cascaded, but considering that there are multiple antenna acquisition boards working at the same time in practice, the working current is large, which may exceed the driving capacity of the control unit. In addition, compared with the first implementation method, the connection between the control unit and the antenna acquisition board is simpler, which is conducive to the stability and layout design of the system.

[0062] Regardless of the implementation method, the system does not need to modify the original optical cross-box connection. During installation and layout, the control unit is placed in the idle area of ​​the optical cross-box, and the antenna acquisition board (antenna unit) is installed on each port of the optical cross-box in rows or columns. The antenna unit needs to completely overlap with the RFID tag, or at least overlap with most of it, to ensure that the RFID tag can be successfully activated and read. The control unit is connected to each antenna acquisition board in sequence. For implementation method one, the control unit sends a control instruction (including a digital control signal and a radio frequency scanning signal) to each antenna acquisition board, and each antenna acquisition board starts working in turn. The antenna units of each antenna acquisition board work one by one, and read and record the RFID tags (encoded information) near each row (or each column) port in turn, and only read one RFID tag at the same time. For implementation method two, the control unit sends a control instruction (including only a digital control signal) to each antenna acquisition board, and each antenna acquisition board works at the same time. The antenna units of each antenna acquisition board work one by one, and read and record the RFID tags (encoded information) near each row (or each column) port in turn, and read the number of RFID tags of antenna acquisition boards at the same time.

[0063] A port may not have a service fiber (i.e., pigtail) but may have at most one service fiber. If an antenna unit scans more than one RFID tag under the control instruction, or multiple antenna units scan the same RIFID tag, then the antenna unit / these antenna units need to work multiple times, i.e., scan the RFID tag at the port multiple times, and obtain the signal strength RSSI of the scanned RFID tag each time. The control unit determines the real RFID tag at the asset point where the antenna unit is located based on the signal strength RSSI or the number of reads of each RFID scanned multiple times. For example, the control unit uses the RFID tag with the strongest signal strength RSSI or the highest proportion of reads as the real RFID tag scanned by the antenna unit, and associates its pigtail (contained in the RFID tag information) with the port where the antenna unit is located.

[0064] In addition, the system can also be remotely controlled. For example, the control unit is triggered to execute the pairing process by the host computer. In some embodiments, the control unit issues the control instruction under the group pairing command of the host computer, thereby controlling each antenna acquisition board to scan the RFID tag. The control unit reports the association result of each port (i.e., asset point) and the pigtail (i.e., asset) to the host computer. The host computer can then pass it to the corresponding application for use.

[0065] In a specific embodiment of optical cross-connect box port pairing, the system execution process includes:

[0066] 1. The host computer or cloud platform initiates a group pairing command to the control unit. For implementation mode 1, the control unit issues a control instruction to control each antenna acquisition board to read in sequence; for implementation mode 2, the control unit issues a control instruction to control each antenna acquisition board to read simultaneously, thereby improving the system recognition efficiency.

[0067] 2. Each antenna acquisition board polls each antenna unit it contains in turn, and records the RFID tag ID (i.e., the encoded information in the RFID tag) read by each antenna unit (at the port where it is located).

[0068] 3. If each antenna unit reads at most one tag ID at a time, and no antenna unit reads a duplicate tag ID, a one-to-one correspondence between the antenna unit and the RFID tag, that is, the port number (pij) and the pigtail number (tv), can be established.

[0069] 4. If an antenna unit reads more than one RFID at the same time, or multiple antenna units read the same RFID, it is necessary to enable this / these antenna units multiple times, implement anti-cross-reading processing based on the number of RFID tag readings and signal strength RSSI, and determine the real RFID tag (i.e., service optical fiber) corresponding to the antenna unit (port), thereby establishing a one-to-one correspondence between the antenna unit and the RFID tag, i.e., the port number (pij) and the service optical fiber number (tv).

[0070] 5. Repeat the above process and cache the data list of the one-to-one correspondence between the established port number (pij) and the service fiber number (tv) locally; complete the polling and reading operations of all antenna acquisition boards in the optical cross-connect box in turn until the pairing identification of all ports is traversed.

[0071] 6. Once the pairing and identification of all ports in the optical cross-connect box are completed, the communication module in the control unit uploads the locally cached data list to the host computer or cloud platform through some transmission protocol (wired, Cat1, WiFi, Bluetooth, etc.).

[0072] 7. The host computer / cloud platform receives the uploaded data list and updates it to the backend database. At the same time, it can be sent to the smart terminal (computer, mobile phone, etc.) for visual display.

[0073] It should be noted that all the above embodiments are based on a one-to-one pairing of asset locations and assets. In fact, according to the embodiments of the present application, it can also be a one-to-many pairing, that is, based on the above embodiments, the RFID tags on the asset are replaced with multiple ones, and the control unit associates the multiple RFID tags scanned by each antenna unit at the same time with the asset location where the antenna unit is located.

[0074] Example 2

[0075] This embodiment discloses an asset group pairing method, which includes the following process:

[0076] Generate a control instruction and send it to at least one antenna acquisition board, so that each antenna unit of each antenna acquisition board that receives the control instruction works one by one under the control instruction to scan the RFID tags on the asset points. Each antenna acquisition board includes at least one antenna unit, and each antenna acquisition unit is installed one by one at each asset point.

[0077] When each antenna unit is working, it can scan the RFID tag at the asset point where it is located, and record it. It is necessary to obtain the RFID tags scanned by all antenna units separately, that is, to obtain the RFID tags at each asset point separately.

[0078] Each asset point is associated one by one with the asset corresponding to the RFID tag scanned by the antenna unit at the asset point.

[0079] In a one-to-one scenario between asset locations and assets, if one antenna unit scans more than one RFID tag at the same time, or multiple antenna units scan the same RFID tag, the antenna unit / s will work multiple times, and the real RFID tag of the asset location where the antenna unit is located will be determined based on the signal strength RSSI of each RFID scanned multiple times.

[0080] There are two schemes for controlling the specific working mode of the antenna acquisition board, one is that each antenna acquisition board starts working in sequence, and the other is that each antenna acquisition board works simultaneously. The former corresponds to the implementation mode 1 in Example 1, and the latter corresponds to the implementation mode 2 in Example 1.

[0081] Specifically, for the first method, there are:

[0082] The control instruction includes a digital control signal and a radio frequency scanning signal. Each antenna acquisition board works in sequence under the action of the digital control signal; the radio frequency scanning signal is sent out by the currently working antenna unit to scan the RFID tag on the asset point.

[0083] For the second method, there are:

[0084] The control instruction is a digital control signal. Each antenna acquisition board works simultaneously under the action of the digital control signal. The antenna acquisition board in the working state generates a radio frequency scanning signal to its currently working antenna unit, so that the antenna unit scans the RFID tag at the asset point where it is located.

[0085] In some embodiments, the control instructions in this embodiment may be generated and issued by a group pairing command issued by a host computer. For such embodiments, after associating each asset point with each asset one by one, the results of the association are also reported to the host computer (via wired, Cat1, WiFi, Bluetooth, etc.) and uploaded to the cloud platform.

[0086] Example 3

[0087] This embodiment introduces an asset group pairing control unit, and the configuration of the control unit can refer to the control unit in Embodiment 1.

[0088] In some embodiments, each antenna collection board in the application scenario of the control unit includes at least one antenna unit, and each antenna collection unit is installed one by one at each asset point.

[0089] The control unit is configured to:

[0090] A control instruction is issued to at least one antenna acquisition board, so that each antenna unit of each antenna acquisition board that receives the control instruction works one by one under the control instruction to scan the RFID tags at the asset locations respectively.

[0091] The control unit obtains the RFID tags scanned by each antenna unit, and associates each asset point with the asset corresponding to the RFID tag scanned at the asset point.

[0092] For the scenario where asset points and assets are one-to-one, the control unit is also configured to: control the antenna unit that scans more than one RFID tag, or multiple antenna units that scan the same RFID work multiple times under the action of control instructions, and the control unit determines the real RFID tag of the asset point where the antenna unit is located based on the signal strength RSSI or the number of valid reads of each RFID scanned multiple times.

[0093] The control instruction of the control unit can control each of the antenna acquisition boards to work in sequence, or can control each of the antenna acquisition boards to work simultaneously. The former corresponds to implementation mode 1 in Example 1, and the latter corresponds to implementation mode 2 in Example 1.

[0094] For the first method, there are:

[0095] The control instruction includes a digital control signal and a radio frequency scanning signal. The control unit issues the control instruction so that each antenna acquisition board works in sequence under the action of the digital control signal; and the currently working antenna unit sends the radio frequency scanning signal to scan the RFID tag on the asset point.

[0096] For the second method, there are:

[0097] The control instruction is a digital control signal. The control unit issues the control instruction so that each antenna acquisition board works simultaneously under the action of the digital control signal; and the antenna acquisition board in the working state generates a radio frequency scanning signal connected to the currently working antenna unit, so that the antenna unit scans the RFID tag at the asset point.

[0098] 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 group matching system, characterized in that: include: A control unit issues control instructions; and respectively associating each asset point with an asset corresponding to an RFID tag scanned at the asset point; At least one antenna collection board connected to the control unit signal; each of the antenna collection boards includes at least one antenna unit, and each antenna collection unit is installed one by one at each asset point; At least one RFID tag, each of the RFID tags being connected to each of the assets; The antenna units of each antenna acquisition board that receives the control instruction work one by one under the control instruction to scan the RFID tags on the asset points respectively, and transmit the scanned RFID tags to the control unit.

2. The asset group matching system according to claim 1, characterized in that: Each of the antenna collection boards works in sequence.

3. The asset group matching system according to claim 2, characterized in that: The control instructions include digital control signals and radio frequency scanning signals; Each of the antenna acquisition boards works in sequence under the action of the digital control signal; the currently working antenna unit sends out the radio frequency scanning signal to scan the RFID tag on the asset point.

4. The asset group matching system according to claim 1, wherein: Each of the antenna collection boards works simultaneously.

5. The asset group matching system according to claim 4, characterized in that: The control instruction is a digital control signal; Each of the antenna acquisition boards works simultaneously under the action of the digital control signal; the antenna acquisition board in the working state generates a radio frequency scanning signal to its currently working antenna unit, so that the antenna unit scans the RFID tag at the asset point where it is located.

6. The asset group matching system according to any one of claims 1 to 5, characterized in that: All antenna units of each antenna collection board are arranged in rows or columns at each asset point.

7. The asset group matching system according to any one of claims 1 to 5, characterized in that: Under the control instruction, an antenna unit that scans more than one RFID tag will work multiple times, or multiple antenna units that scan the same RFID tag will work multiple times respectively; The control unit determines the real RFID tag of the asset point where the antenna unit is located based on the signal strength RSSI or the number of times of each RFID tag scanned multiple times.

8. The asset group matching system according to claim 1, wherein: The control unit issues the control instruction under the group pairing command of the host computer; the control unit also reports the association result between each asset point and the asset to the host computer.

9. A method for pairing asset groups, characterized in that: Methods include: Generate a control instruction and send it to at least one antenna acquisition board, so that each antenna unit of each antenna acquisition board that receives the control instruction works one by one under the control instruction to scan the RFID tags on the asset points respectively; wherein each antenna acquisition board includes at least one antenna unit, and each antenna acquisition unit is installed one by one at each asset point; Each asset point is associated one by one with the asset corresponding to the RFID tag scanned by the antenna unit at the asset point.

10. An asset group pairing control unit, characterized in that: The control unit is configured to: Sending a control instruction to at least one antenna acquisition board, so that each antenna unit of each antenna acquisition board that receives the control instruction works one by one under the control instruction to respectively scan the RFID tags on the asset points; wherein each antenna acquisition board includes at least one antenna unit, and each antenna acquisition unit is installed one by one at each asset point; and, Each asset point is associated with the asset corresponding to the RFID tag scanned at the asset point.

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