Port occupation identification system in optical cable cross connecting cabinet

Abstract

The invention provides a port occupation identification system in an optical cable cross connecting cabinet, which relates to the technical field of wireless communication and comprises a reader-writer, a master tag and a slave tag. The slave tag comprises a near-field antenna, the slave tag is used for transmitting first port occupation data to the master tag, the master tag comprises a near-field antenna and a far-field antenna, and the master tag is used for receiving the first port occupation data transmitted by the slave tag and transmitting second port occupation data to the reader-writer; the near-field antenna is used for receiving radio frequency energy; and the reader-writer is used for transmitting radio frequency energy to provide energy for the main tag and the main tag and reading the radio frequency energy. The data is transmitted through communication between the master label and the slave label, and the second port occupation data is transmitted to the reader-writer through the master label, so that the determination of the port occupation condition of the optical cable cross connecting cabinet is realized, and the determination accuracy of the port occupation condition is improved.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to a port occupancy identification system in an optical cross-connect box. Background Art

[0002] Optical cross-connect boxes are usually used in optical fiber switching networks to realize branch connections of optical cables. With the development of the Internet of Things and optical fiber communication technology, optical fiber, as an important data transmission medium for metropolitan area networks and local area networks, is becoming more and more widely used.

[0003] Currently, port occupancy is manually identified. When maintaining optical fibers, workers usually need to rely on paper labels to identify the port numbers corresponding to the optical fibers in order to find the pairing between the optical fiber jumpers and ports. When installing new optical fibers, workers also need to check whether the port resources are occupied, and in both states, they need to manually record the port status information. Its use and maintenance methods are inconvenient, and a large number of labels and records also waste work time, resulting in low work efficiency. Summary of the invention

[0004] The present application aims to solve one of the technical problems in the related art at least to some extent.

[0005] To this end, the first objective of the present application is to provide a port occupancy identification system in an optical cross-connect box.

[0006] The second objective of the present application is to provide an electronic device.

[0007] The third object of the present application is to provide a computer-readable storage medium.

[0008] A fourth object of the present application is to provide a computer program product.

[0009] To achieve the above-mentioned purpose, the first embodiment of the present application proposes a port occupancy identification system in an optical cross-connect box, including: a reader / writer, a master tag and a slave tag;

[0010] The slave tag comprises a near-field antenna, and the slave tag is used to transmit first port occupancy data to the master tag;

[0011] The master tag is arranged on the optical cross-box port, the master tag includes a near-field antenna and a far-field antenna, and the master tag is used to receive the first port occupancy data transmitted by the slave tag, and transmit the second port occupancy data to the reader;

[0012] The near-field antenna is used to receive radio frequency energy;

[0013] The reader is used to send radio frequency energy to provide energy for the main tag and the main tag, and determine the port occupancy status according to the second port occupancy data.

[0014] Optionally, the main tag includes a first tag chip, and the slave tag includes a second tag chip, the first tag chip is connected to the near-field antenna and the far-field antenna in the main tag; the second tag chip is connected to the near-field antenna in the slave tag.

[0015] Optionally, both the first tag chip and the second tag chip include: an impedance matching module, a rectification module, an energy storage module, and an energy management module;

[0016] The impedance matching module is connected to the near-field antenna and is used to perform impedance matching on the radio frequency received by the near-field antenna;

[0017] The rectifier module is connected to the impedance matching module and is used to convert AC power into DC power and input the DC power into the energy storage module;

[0018] The energy storage module is used to store the electric energy output by the rectifier module;

[0019] The energy management module is connected to the energy storage module, and the energy management module is used to control the energy storage module to charge or discharge.

[0020] Optionally, the first tag chip and the second tag chip further include: a digital baseband module and a backscatter modulation module;

[0021] The digital baseband module is used to control the operating status of the first tag chip and the second tag chip;

[0022] The backscatter modulation module is connected to the near-field antenna and is used to modulate the port occupancy data and send it to the near-field antenna.

[0023] Optionally, after the main tag receives the radio frequency energy, the digital baseband module in the main tag is used to control the first tag chip to enter a mode of waiting for receiving data;

[0024] After the slave tag receives the radio frequency energy, the digital baseband module in the slave tag is used to control the backscatter modulation module in the second tag chip to modulate and send it out through the near-field antenna.

[0025] Optionally, after the near-field antenna in the master tag receives the first port occupancy data sent by the slave tag, the digital baseband module in the tag is used to control the master tag to enter a data sending mode;

[0026] In the data transmission mode, the backscatter modulation module in the main tag is used to integrate the first port occupancy data and the number of the main tag to obtain the second port occupancy data, and modulate the second port occupancy data and send it to the far-field antenna in the main tag;

[0027] The far-field antenna is used to send the second port occupancy data to the reader / writer.

[0028] Optionally, the reader is used to receive the second port occupancy data and determine the port occupancy status;

[0029] If the second port occupation data only includes the number data of the master tag and does not include the number data of the slave tag, it is determined that the slave tag is not occupied;

[0030] If the second port occupation data includes the number data of the master tag and the number data of the slave tag, it is determined that the slave tag is occupied.

[0031] To achieve the above-mentioned purpose, a second aspect of the present application provides an electronic device, including: a processor, and a memory communicatively connected to the processor;

[0032] The memory stores computer-executable instructions;

[0033] The processor executes the computer-executable instructions stored in the memory to implement the system as described in any one of the first aspects.

[0034] To achieve the above-mentioned purpose, the third aspect of the present application proposes a computer-readable storage medium, in which computer-readable storage medium is stored computer-executable instructions, and when the computer-executable instructions are executed by a processor, they are used to implement a system as described in any one of the first aspects.

[0035] To achieve the above-mentioned purpose, the fourth aspect of the present application provides a computer program product, which, when executed by a processor, implements the system described in any one of the first aspects.

[0036] The method, device, electronic device and storage medium for identifying port occupancy in an optical cross-connect box provided in the present application transmit data through communication between a master tag and a slave tag, and transmit the second port occupancy data to the reader / writer through the master tag, thereby realizing the determination of the port occupancy status of the optical cross-connect box and improving the accuracy of the determination of the port occupancy status.

[0037] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0039] Figure 1 A schematic diagram of the structure of a system for identifying port occupancy in an optical cross-connect box provided in an embodiment of the present application;

[0040] Figure 2 A schematic diagram of an antenna provided in an embodiment of the present application;

[0041] Figure 3 An equivalent circuit diagram of a tag and an antenna provided in an embodiment of the present application. DETAILED DESCRIPTION

[0042] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0043] Optical cross-connect boxes are usually used in optical fiber switching networks to realize branch connections of optical cables. With the development of the Internet of Things and optical fiber communication technology, optical fiber is becoming more and more widely used as an important data transmission medium for metropolitan area networks and local area networks. However, passive optical cross-connect boxes also expose some problems during use. For example, its internal wiring is disordered, and it is not easy for workers to identify port occupancy and the matching of optical fiber jumpers with ports when repairing or installing optical fibers.

[0044] The inventory of ports in the optical cross-connect box is usually solved through manual identification or with the help of RFID reader guns.

[0045] Manual identification: When maintaining optical fiber, workers usually need to rely on paper labels to identify the port number corresponding to the optical fiber in order to find the match between the optical fiber jumper and the port. When installing new optical fiber, workers also need to check whether the port resources are occupied, and in both states, they need to manually record the port status information.

[0046] RFID point-reading gun identification method, this method is to equip the connector and port of each fiber jumper with RFID electronic tags. During inventory, workers need to use RFID readers to scan each port to read the number of the electronic tag to realize the status inventory of the port.

[0047] Compared with this method, the prior art has the following disadvantages:

[0048] Manual identification is not convenient to use and maintain, and a large number of labels and records waste man-hours, resulting in low work efficiency. What is more difficult is that paper labels are easy to wear or lose, information maintenance is not timely, and the overall cost is high.

[0049] When using the RFID point-reading gun identification method, it is necessary to keep the reader and the tag at an appropriate distance, and it is difficult to ensure that each interface can achieve one-to-one accurate identification, which is prone to cross-reading. In addition, due to the large number of interfaces in the optical exchange box, it takes a long time for the RFID reader to scan one by one.

[0050] In summary, manual inspection and RFID reader identification have the defects of low efficiency, easy error, untimely inventory, etc. Therefore, this paper proposes a method to identify port occupancy in optical cross-connect box, which can realize automatic, timely and rapid identification of the status of optical cross-connect box port.

[0051] To address this problem, the present application provides a port occupancy identification system in an optical cross-connect box. Figure 1 This is a schematic diagram of the structure of a system for identifying port occupancy in an optical cross-connect box provided in an embodiment of the present application. Figure 1 As shown, the system includes: a reader / writer 10, a master tag 20 and a slave tag 30;

[0052] The slave tag comprises a near-field antenna, and the slave tag is used to transmit first port occupancy data to the master tag;

[0053] The master tag is arranged on the optical cross-box port, the master tag includes a near-field antenna and a far-field antenna, and the master tag is used to receive the first port occupancy data transmitted by the slave tag, and transmit the second port occupancy data to the reader;

[0054] The near-field antenna is used to receive radio frequency energy;

[0055] The reader is used to send radio frequency energy to provide energy for the main tag and the main tag, and determine the port occupancy status according to the second port occupancy data.

[0056] In this embodiment, the reader needs to send radio frequency energy to power the master and slave tags. The frequency of the radio frequency energy sent by the general reader is 840-925Mhz. Then the reader needs to receive the tag reflection signal and decode it.

[0057] Figure 2 An antenna schematic diagram provided in an embodiment of the present application, such as Figure 2 As shown in Figure 1, near-field antennas and far-field antennas are classified according to the different characteristics of electromagnetic wave propagation distances. There are obvious differences between these two types of antennas in electromagnetic wave propagation characteristics and application fields.

[0058] Near-field antenna usually refers to the situation where the distance between the antenna and the receiver is less than one tenth of the antenna wavelength (λ / 10). Within this distance range, the propagation characteristics of electromagnetic waves are mainly manifested as near-field effects, including the coupling of electric and magnetic fields. Features: 1. Radiation mode: Near-field antennas mainly transmit energy through inductive coupling (magnetic coupling or electric coupling) rather than through long-distance radiation waves. 2. Distance dependence: The signal strength of near-field antennas increases rapidly as the distance decreases. 3. Phase characteristics: The phase of the near-field signal changes with the distance, and the phase is linearly related to the distance. 4. Application areas: Near-field antennas are widely used in short-range communication technologies such as RFID (radio frequency identification), NFC (near field communication), wireless charging, etc.

[0059] Far-field antenna usually refers to the situation where the distance between the antenna and the receiver is greater than one tenth of the antenna wavelength (λ / 10). Within such a distance range, the propagation characteristics of electromagnetic waves are mainly manifested as the far-field effect, that is, the propagation of electromagnetic waves in free space. Features: 1. Radiation pattern: Far-field antennas mainly transmit energy through the radiation of electromagnetic waves, and the signal diffuses outward in the form of spherical waves. 2. Distance dependence: The signal strength of the far-field antenna decays with the square of the distance (following the inverse square law). 3. Phase characteristics: The phase of the far-field signal hardly changes with the distance, and the phase is independent of the distance. 4. Application areas: Far-field antennas are widely used in long-distance communication technologies such as broadcasting, satellite communications, radar, mobile communications, etc.

[0060] Near-field antennas are more suitable for short-range, high-frequency applications, such as wireless charging, NFC, etc. Far-field antennas are suitable for long-range, low-frequency applications, such as radio broadcasting, satellite communications, etc. Understanding the difference between near-field and far-field antennas helps to select the appropriate antenna type in design and application to meet specific communication needs.

[0061] Figure 3 An equivalent circuit diagram of a tag and an antenna provided in an embodiment of the present application is shown in FIG. Figure 3 As shown, the antenna is equivalent to a power source, receiving radio frequency energy and powering the chip.

[0062] Optionally, the main tag includes a first tag chip, and the slave tag includes a second tag chip, the first tag chip is connected to the near-field antenna and the far-field antenna in the main tag; the second tag chip is connected to the near-field antenna in the slave tag.

[0063] The master tag and the slave tag each contain a tag chip, which can provide impedance matching, rectification, energy storage capacitor, energy management, digital baseband and backscatter modulation functions.

[0064] Optionally, both the first tag chip and the second tag chip include: an impedance matching module, a rectification module, an energy storage module, and an energy management module;

[0065] The impedance matching module is connected to the near-field antenna and is used to perform impedance matching on the radio frequency received by the near-field antenna;

[0066] The rectifier module is connected to the impedance matching module and is used to convert AC power into DC power and input the DC power into the energy storage module;

[0067] The energy storage module is used to store the electric energy output by the rectifier module;

[0068] The energy management module is connected to the energy storage module, and the energy management module is used to control the energy storage module to charge or discharge.

[0069] Optionally, the first tag chip and the second tag chip further include: a digital baseband module and a backscatter modulation module;

[0070] The digital baseband module is used to control the operating status of the first tag chip and the second tag chip;

[0071] The backscatter modulation module is connected to the near-field antenna and is used to modulate the port occupancy data and send it to the near-field antenna.

[0072] Optionally, after the main tag receives the radio frequency energy, the digital baseband module in the main tag is used to control the first tag chip to enter a mode of waiting for receiving data;

[0073] After the slave tag receives the radio frequency energy, the digital baseband module in the slave tag is used to control the backscatter modulation module in the second tag chip to modulate and send it out through the near-field antenna.

[0074] The master tag is located on the port of the optical cross-connect box, and has two antenna coils inside, one is a near-field antenna and the other is a far-field antenna. The function of the near-field antenna in the master tag is to collect the RF energy emitted by the reader to power its own tag and receive the backscattered signal from the slave tag. The function of the far-field antenna in the master tag is to send the data information of the master and slave tag signals to the reader through backscattering. The slave tag is located at one end of the jumper connector, and has a near-field antenna inside, which is used to receive the RF energy emitted by the reader to power the tag and exchange data with the master tag.

[0075] Optionally, after the near-field antenna in the master tag receives the first port occupancy data sent by the slave tag, the digital baseband module in the tag is used to control the master tag to enter a data sending mode;

[0076] In the data transmission mode, the backscatter modulation module in the main tag is used to integrate the first port occupancy data and the number of the main tag to obtain the second port occupancy data, and modulate the second port occupancy data and send it to the far-field antenna in the main tag;

[0077] The far-field antenna is used to send the second port occupancy data to the reader / writer.

[0078] In this embodiment, the working principles of the reader and the master-slave tag are as follows:

[0079] The reader sends radio frequency energy to the master tag and the slave tag. The near-field antenna coils of the two tags can provide energy to the tag chip after receiving the radio frequency signals respectively. The specific implementation is that the reader generates a dynamically changing magnetic field. At this moment, the master and slave near-field antennas are in a dynamically changing magnetic field, and their induction coils will dynamically capture the energy in the magnetic field, and then the tags obtain the energy of the induced electromotive force for their own work.

[0080] The digital baseband module of the main tag controls the timing logic of the entire reflection link. When the near-field antenna coil of the main tag receives energy, the tag chip starts working. The digital baseband module controls the delay through the state machine and triggers the chip to enter the waiting mode for receiving data. After the delay ends, the state machine triggers the chip to enter the sending data working mode.

[0081] The master tag has two working modes and the slave tag has one working mode. When the master tag and the slave tag receive RF energy at the same time at time T0, the slave tag enters the data sending mode and the master tag enters the data waiting mode. After the delay ends, that is, Δt, the master tag enters the data sending mode.

[0082] The slave tag does not need to respond to the reader, but only needs to respond to the master tag. The slave tag generates a weak reverse magnetic field so that the master tag can obtain the weak magnetic field generated by the slave tag, and the master tag can receive the signal of the slave tag from the reverse magnetic field. After receiving the signal of the slave tag, the master tag converts the data information of the master and slave tags into radio frequency signals through backscattering and transmits them to the reader through the same magnetic field induction principle.

[0083] After the reader successfully receives the data sent by the master tag, it decodes the data. If the decoded data contains only the master tag's serial number, it means that this port in the optical cross-connect box is not occupied; if the data returned by the master tag contains the slave tag's serial number, it means that this port in the optical cross-connect box is occupied. The reader can then send the port's occupancy status to the cloud via 4 / 5G wireless communication.

[0084] The near-field antenna described above for the master tag and slave tag has a very short communication distance. The inductance value of the near-field antenna can be expressed as LA To describe, the inductance L A Has very small loss resistance R A When the near-field antenna senses a magnetic field, a current is induced and an open-circuit voltage V appears at its terminals. OC The chip can be described by input resistance RS and built-in tuning capacitor CS. The input resistance RS, antenna resistance RA and built-in tuning capacitor CS together with the antenna inductance LA form a series resonant circuit, such as Figure 3 According to engineering experience, the operating frequency can be set to 915Mhz, and the tuning capacitor can be set to 50pf.

[0085]

[0086] It can be seen that LA is 6.06×10-10H. Assuming the radius of the antenna coil is a, there is L in the inductive near field. A ≈μ0πaN 2 , N is the number of turns of the coil, μ0=4π×10 -7 H / m, the size of the tag can be made into 5cm×8cm, and the number of turns of the coil can be calculated. d is the backscattering communication distance, L is the length of the antenna coil, so in the case of near-field antenna, the size of the tag and the number of turns of the coil determine the communication distance. According to the requirements of this article, the near-field communication distance is less than 1cm, and the far-field communication distance is greater than 1m, then

[0087] Optionally, the reader is used to receive the second port occupancy data and determine the port occupancy status;

[0088] If the second port occupation data only includes the number data of the master tag and does not include the number data of the slave tag, it is determined that the slave tag is not occupied;

[0089] If the second port occupation data includes the number data of the master tag and the number data of the slave tag, it is determined that the slave tag is occupied.

[0090] In order to implement the above embodiments, the present application also proposes an electronic device, comprising: a processor, and a memory communicatively connected to the processor; the memory stores computer-executable instructions; the processor executes the computer-executable instructions stored in the memory to implement the method provided by the above embodiments.

[0091] In order to implement the above embodiments, the present application also proposes a computer-readable storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor, they are used to implement the methods provided by the above embodiments.

[0092] In order to implement the above embodiments, the present application also proposes a computer program product, including a computer program, which implements the methods provided by the above embodiments when executed by a processor.

[0093] The collection, storage, use, processing, transmission, provision and disclosure of user personal information involved in this application are in compliance with relevant laws and regulations and do not violate public order and good morals.

[0094] It should be noted that personal information from users should be collected for legitimate and reasonable purposes and should not be shared or sold outside of these legitimate uses. In addition, such collection / sharing should be carried out after receiving the user's informed consent, including but not limited to notifying the user to read the user agreement / user notice and sign the agreement / authorization including authorization of relevant user information before the user uses the function. In addition, any necessary steps should be taken to protect and safeguard access to such personal information data and ensure that others who have access to personal information data comply with its privacy policy and procedures.

[0095] The present application is expected to provide an implementation scheme for users to selectively block the use or access of personal information data. That is, the present disclosure is expected to provide hardware and / or software to prevent or block access to such personal information data. Once the personal information data is no longer needed, the risk can be minimized by limiting data collection and deleting the data. In addition, when applicable, such personal information is de-identified to protect the privacy of the user.

[0096] In the description of the aforementioned embodiments, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0097] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0098] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0099] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute the instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purpose of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0100] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0101] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0102] In addition, each functional unit in each embodiment of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0103] The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, etc. Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. A person of ordinary skill in the art may change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A port occupancy identification system in an optical cross-connect box, characterized in that: include: Reader / writer, master tag and slave tag; The slave tag comprises a near-field antenna, and the slave tag is used to transmit first port occupancy data to the master tag; The master tag is arranged on the optical cross-box port, the master tag includes a near-field antenna and a far-field antenna, and the master tag is used to receive the first port occupancy data transmitted by the slave tag, and transmit the second port occupancy data to the reader; The near-field antenna is used to receive radio frequency energy; The reader is used to send radio frequency energy to provide energy for the main tag and the main tag, and determine the port occupancy status according to the second port occupancy data.

2. The system according to claim 1, characterized in that The master tag includes a first tag chip, and the slave tag includes a second tag chip. The first tag chip is connected to the near-field antenna and the far-field antenna in the master tag; the second tag chip is connected to the near-field antenna in the slave tag.

3. The system according to claim 2, characterized in that The first tag chip and the second tag chip both include: an impedance matching module, a rectification module, an energy storage module, and an energy management module; The impedance matching module is connected to the near-field antenna and is used to perform impedance matching on the radio frequency received by the near-field antenna; The rectifier module is connected to the impedance matching module and is used to convert AC power into DC power and input the DC power into the energy storage module; The energy storage module is used to store the electric energy output by the rectifier module; The energy management module is connected to the energy storage module, and the energy management module is used to control the energy storage module to charge or discharge.

4. The system according to claim 3, characterized in that The first tag chip and the second tag chip also include: a digital baseband module and a backscatter modulation module; The digital baseband module is used to control the operating status of the first tag chip and the second tag chip; The backscatter modulation module is connected to the near-field antenna and is used to modulate the port occupancy data and send it to the near-field antenna.

5. The system according to claim 4, characterized in that After the main tag receives the radio frequency energy, the digital baseband module in the main tag is used to control the first tag chip to enter a mode of waiting for receiving data; After the slave tag receives the radio frequency energy, the digital baseband module in the slave tag is used to control the backscatter modulation module in the second tag chip to modulate and send it out through the near-field antenna.

6. The system according to claim 5, characterized in that After the near-field antenna in the master tag receives the first port occupancy data sent by the slave tag, the digital baseband module in the tag is used to control the master tag to enter a data sending mode; In the data transmission mode, the backscatter modulation module in the main tag is used to integrate the first port occupancy data and the number of the main tag to obtain the second port occupancy data, and modulate the second port occupancy data and send it to the far-field antenna in the main tag; The far-field antenna is used to send the second port occupancy data to the reader / writer.

7. The system according to claim 6, characterized in that The reader is used to receive the second port occupancy data and determine the port occupancy status; If the second port occupation data only includes the number data of the master tag and does not include the number data of the slave tag, it is determined that the slave tag is not occupied; If the second port occupation data includes the number data of the master tag and the number data of the slave tag, it is determined that the slave tag is occupied.

8. An electronic device, characterized in that: include: A processor, and a memory communicatively connected to the processor; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory to implement the system according to any one of claims 1 to 7.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are executed by a processor, they are used to implement the system according to any one of claims 1 to 7.

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