Radio frequency identification tag and optical fiber

Abstract

The utility model provides a radio frequency identification tag and an optical fiber. The radio frequency identification tag comprises a radio frequency chip, an element is coupled between a first end and a second end of the radio frequency chip, and the first end and the second end are used for being communicated with an external circuit. According to the radio frequency identification tag, the pairing efficiency of the radio frequency identification tag can be improved.

Description

Technical Field

[0001] The present application relates to the field of radio frequency identification technology, and in particular to a radio frequency identification tag and an optical fiber. Background Art

[0002] Optical fiber is a passive transmission medium. It is difficult for network elements of optical fiber communication equipment to effectively monitor and manage optical fiber resources, which causes operators to face challenges such as invisible massive optical fiber routes, unknown resources, and difficult fault location.

[0003] At present, these connection relationships are managed manually, such as through the optical fiber connection port, the paper label on each row of ports in the optical cross-connection box, and manual identification, comparison and registration in the form or software. This method is not only inefficient, but also prone to errors and omissions. A large number of connection relationships are lost, resulting in low opening efficiency, waste of port resources, and difficulty in locating faults. The manual method is no longer sustainable.

[0004] Therefore, operators have a strong demand for digital transformation of the above scenarios. For each optical fiber connection, that is, the connection between the optical fiber connection port and the port in the optical cross-connect box, two RFID tags are used to manage the connection.

[0005] However, if one of the ports in the optical cross-connect box is an empty port (no optical fiber is connected), there is only the RFID tag of the port, but not the RFID tag of the optical fiber's connection port. Currently, when a reader is used to scan the above RFID tags, if the RFID tag of the optical fiber's connection port is not identified, it cannot be determined whether it is because the port is an empty port, or because of various factors (for example, the reader is not aligned with the tag, the distance is far, external interference, etc.) that the RFID tag of the optical fiber's connection port is not identified. In order to avoid omissions, multiple scans are required to eliminate environmental factors, which will greatly extend the pairing time between the two RFID tags and reduce efficiency. Utility Model Content

[0006] The present application provides a radio frequency identification tag and an optical fiber. The radio frequency identification tag comprises a radio frequency chip, a first end and a second end of the radio frequency chip are coupled with an element, and the first end and the second end are used to communicate with an external circuit.

[0007] In a first aspect, a radio frequency identification tag is provided, comprising: a connector; a radio frequency chip, wherein a first port of the radio frequency chip is coupled and connected to a first connection port of the connector, and a second port of the radio frequency chip is coupled and connected to a second connection port of the connector; and an element, wherein a first end of the element is coupled to the first port and the first connection port, and a second end of the element is coupled to the second port and the second connection port.

[0008] According to an embodiment of the present application, a radio frequency identification tag (e.g., as a controlled tag) is connected to another radio frequency identification tag (e.g., as a master tag) through a connector.

[0009] Another radio frequency identification tag (e.g., as a master tag) outputs a detection signal (e.g., an electrical signal with a high level). Since the component is coupled between two connection ports of the connector, the component can form a current path, allowing the detection signal to flow through the component and return to another radio frequency identification tag (e.g., as a master tag). Another radio frequency identification tag (e.g., as a master tag) can determine the connection status between another radio frequency identification tag (e.g., as a master tag) and the radio frequency identification tag (e.g., as a controlled tag) based on the detection signal.

[0010] In combination with the first aspect, in some implementation manners of the first aspect, the component is a resistor, or the component is a circuit that can be equivalent to a resistor.

[0011] According to an embodiment of the present application, in actual production or design, the type of the component can be determined according to the detection signal (e.g., current or voltage). For example, the component can also be a capacitor, equivalent to a capacitor, an inductor, or equivalent to an inductor. The embodiments of the present application do not limit this and can be adjusted according to actual production or design.

[0012] In combination with the first aspect, in some implementation manners of the first aspect, the equivalent resistance of the component is less than or equal to 2 MΩ.

[0013] According to an embodiment of the present application, when the equivalent resistance value of the component is within the above range, after the detection signal output by the second radio frequency identification tag 300 flows through the component, the detection signal returning to the second radio frequency identification tag has a strong intensity (intensity of current or voltage), which is convenient for the second radio frequency identification tag to identify the signal and improves the accuracy of identification.

[0014] In combination with the first aspect, in some implementation manners of the first aspect, the first port is a power supply port, and the second port is an antenna negative extreme port.

[0015] In combination with the first aspect, in some implementation manners of the first aspect, the first port is a voltage output port, and the second port is a ground port.

[0016] According to an embodiment of the present application, there can also be various different connection manners between the component and the radio frequency chip, which can be adjusted according to actual production or design.

[0017] In combination with the first aspect, in certain implementations of the first aspect, the radio frequency identification tag further includes an antenna, and the third port of the radio frequency chip is coupled to the positive terminal port of the antenna, and the fourth port of the radio frequency chip is coupled to the negative terminal port of the antenna.

[0018] According to the embodiments of the present application, the first radio frequency identification tag can communicate with an external device through the antenna. For example, it can send a signal to the reader through the antenna, or receive a signal sent by the reader through the antenna.

[0019] In combination with the first aspect, in certain implementations of the first aspect, the radio frequency identification tag further includes a substrate, and the connector, the radio frequency chip, and the component are located on the substrate.

[0020] According to the embodiments of the present application, the substrate is used to carry the components included in the first radio frequency identification tag.

[0021] In a second aspect, there is provided an optical fiber including the radio frequency identification tag according to any one of the above first aspects and an optical fiber connection port, and the radio frequency identification tag is fixedly connected to the optical fiber connection port. Description of the Drawings

[0022] Figure 1 It is a schematic diagram of a scenario where the ports in an optical cross-connect box 100 provided by the embodiments of the present application are paired with an optical fiber.

[0023] Figure 2 It is a schematic diagram of a scenario where the ports in an optical cross-connect box 100 provided by the embodiments of the present application perform radio frequency identification on an optical fiber.

[0024] Figure 3 It is a schematic diagram of a first radio frequency identification tag 200 provided by the embodiments of the present application.

[0025] Figure 4 It is a schematic diagram of the connection between a first radio frequency identification tag 200 and a second radio frequency identification tag 300 provided by the embodiments of the present application.

[0026] Figure 5 It is a schematic diagram of a first radio frequency identification tag 200 provided by the embodiments of the present application.

[0027] Figure 6 It is a schematic diagram of a first radio frequency identification tag 200 provided by the embodiments of the present application.

[0028] Figure 7 It is a schematic diagram of a pairing method 400 for a radio frequency identification tag provided by the embodiments of the present application.

[0029] Figure 8 It is a schematic diagram of a pairing method 500 for a radio frequency identification tag provided by the embodiments of the present application.

[0030] Figure 9 It is a schematic diagram of a pairing method 600 for a radio frequency identification tag provided by an embodiment of the present application.

[0031] Figure 10 It is a schematic block diagram of a radio frequency identification device (radio frequency identification module) according to an embodiment of the present application.

[0032] Figure 11 It is a schematic block diagram of another radio frequency identification device (radio frequency identification module) according to an embodiment of the present application. Detailed implementation manners

[0033] Next, the technical solutions in the present application will be described with reference to the accompanying drawings.

[0034] It should be understood that the term "and / or" used herein is merely a description of the same field of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0035] For the range used in the present application, unless otherwise specified as not including the end values, it is default to include the two end values of the range. For example, within the range of 1 to 5, the two values 1 and 5 are included.

[0036] Coupling: It can be understood as direct coupling and / or indirect coupling. "Coupled connection" can be understood as direct coupled connection and / or indirect coupled connection. Direct coupling can also be referred to as "electrical connection", which is understood as physical contact and electrical conduction of components; it can also be understood as a form of connection between different components in a circuit structure through a printed circuit board (PCB) copper foil or a wire and other signal-transmitting physical lines. "Indirect coupling" can be understood as electrical conduction between two conductors in a non-contact manner. In one embodiment, indirect coupling can also be referred to as capacitive coupling. For example, signal transmission is achieved through the coupling between the gaps of two conductive members to form an equivalent capacitance.

[0037] Element / device: Includes at least one of lumped elements / devices and distributed elements / devices.

[0038] Lumped element / device: Refers to the general term for all elements when the size of the element is much smaller than the wavelength corresponding to the operating frequency of the circuit. For a signal, at any moment, the characteristics of the element always remain fixed and are independent of the frequency. Lumped elements / devices can include lumped capacitors, lumped inductors, etc.

[0039] Distributed element / device: Different from lumped elements, when a signal passes through an element, the characteristics of each point of the element itself will vary with the change of the signal. At this time, the element as a whole cannot be regarded as a single entity with fixed characteristics, but should be called a distributed element. Distributed elements / devices can include distributed capacitance, distributed inductance, etc.

[0040] Capacitance: It can be understood as lumped capacitance and / or distributed capacitance. Lumped capacitance includes capacitive components, such as capacitor elements; distributed capacitance (or distributed capacitor) includes the equivalent capacitance formed by two conductive members spaced apart by a certain gap.

[0041] Inductance: It can be understood as lumped inductance and / or distributed inductance. Lumped inductance includes inductive components, such as inductance elements; distributed inductance (or distributed inductance) includes the equivalent inductance formed by a conductive member of a certain length, such as the equivalent inductance formed by a conductor due to curling or rotation.

[0042] The matching circuit is a circuit used to adjust the radiation characteristics of an antenna. In one embodiment, the matching circuit is coupled between the feeding circuit and the corresponding radiator. In one embodiment, the matching circuit is coupled between the test socket and the radiator. Generally, the matching circuit is a combination of circuits coupled between the radiator and the ground plane. In one embodiment, the matching circuit may include a tuning circuit and / or electronic components, and the tuning circuit may be an electronic component for switching the coupled connection of the radiator. The matching circuit has the functions of impedance matching and / or frequency tuning. Generally, it is considered to be part of the antenna.

[0043] Radio frequency identification (RFID) technology is a type of automatic identification technology that performs non-contact two-way data communication via radio frequency, reads and writes RFID tags in a wireless radio frequency manner, so as to achieve the purpose of identifying targets and data exchange.

[0044] RFID tag: Also known as tag, electronic tag, smart tag, RFID transponder or RFID data carrier, etc. It is usually composed of a coupling element and a chip, and each RFID tag has a unique identifier, such as an electronic code. In some scenarios, RFID tags can be attached to objects to identify the objects.

[0045] Reader: Also known as reading device, scanner, read head, communicator or reader / writer (depending on whether the RFID tag can be rewritten wirelessly), etc. It is usually used to read (and sometimes write) RFID tag information. For example, the reader can be a handheld or fixed device.

[0046] Figure 1 It is a schematic diagram of the scenario where the ports in an optical cross-connect box 100 provided by the embodiments of the present application are paired with optical fibers.

[0047] It should be understood that the optical fiber distribution box 100 can be understood as a tool for realizing optical fiber cross-connection.

[0048] As Figure 1 shown, the optical fiber distribution box 100 may include a plurality of ports. For example, the optical fiber distribution box 100 includes port 101 - port 106. At least some of the plurality of ports may be respectively connected to an optical fiber. For example, optical fibers 111 - 116.

[0049] Currently, the connection relationships between a huge number of complex optical fibers and the ports of the optical fiber distribution box 100 are usually managed manually, including attaching paper labels to each port on the optical fiber ports and inside the optical fiber distribution box, and then manually identifying, comparing, and registering the corresponding connection relationships between the ports and the optical fibers into a table or software. Optical fibers are passive transmission media, and it is difficult to monitor and manage the dumb resources of the optical cable network through the information network for the connections between optical fibers and the ports of optical switching devices.

[0050] A possible way is to respectively set RFID tags on the ports of the optical fiber distribution box 100 and the optical fiber connection ports of the optical fibers, as Figure 2 shown. In one embodiment, when the port is connected to the optical fiber, at least part of the optical fiber connection port of the optical fiber is located in the port. RFID tags 201 - 203 are respectively fixedly connected to the corresponding ports 101 - 103. RFID tags 211 - 213 are respectively fixedly connected to the optical fiber connection ports of the corresponding optical fibers 111 - 113.

[0051] It should be understood that in the embodiments of the present application, the RFID tags fixedly connected to the ports of the optical fiber distribution box 100 can be referred to as "master tags", for example, RFID tags 201 - 203. In the embodiments of the present application, the RFID tags fixedly connected to the optical fiber connection ports of the optical fibers can be referred to as "slave tags", for example, RFID tags 211 - 213.

[0052] When the RFID tags are set, keep the RFID tags on the ports of the optical fiber distribution box 100 and the RFID tags on the optical fiber connection ports of the optical fibers close to each other, and approach them through the reader 210, and simultaneously read and identify this group of RFID tags. At this time, the reader 210 is in the close-range reading mode, ensuring that only the nearest pair of RFID tags is identified and not reading other surrounding tags, so that the information of this group of RFID tags fixed on the ports of the optical fiber distribution box 100 and the optical fiber connection ports of the optical fibers can be read. Identify each group of RFID tags pair by pair, and the corresponding relationships between the ports and the optical fibers in the optical fiber distribution box can be recorded and managed.

[0053] If a port in the optical fiber distribution box is an empty port (without an optical fiber connected), there is only the RFID tag of the port, and no RFID tag of the optical fiber connection port of the optical fiber. Currently, a reader is used to scan the above RFID tags. In the case where the RFID tag of the optical fiber connection port of the optical fiber is not recognized, it cannot be determined whether it is because the port is an empty port or because of various factors (such as the reader not being aligned with the tag, long distance, external interference, etc.) that the RFID tag of the optical fiber connection port of the optical fiber is not recognized. To avoid omission, it is necessary to perform multiple scans to eliminate environmental factors, which will greatly extend the pairing time between the two RFID tags and reduce the efficiency.

[0054] This application provides an RFID tag and an optical fiber. The RFID tag includes an RF chip, and an element is coupled between the first end and the second end of the RF chip. The first end and the second port are used to communicate with an external circuit. This RFID tag can improve the pairing efficiency of the RFID tag.

[0055] Figure 3 It is a schematic diagram of a first RFID tag 200 provided by an embodiment of this application.

[0056] It should be understood that Figure 3 The shown first RFID tag 200 can be fixed to the optical fiber connection port of the optical fiber. The first RFID tag 200 can be used as the controlled tag in the above embodiment.

[0057] As Figure 3 shown, the first RFID tag 200 includes a first connector 210, a first RF chip (RFIC) 220, and an element 230.

[0058] The first port 221 of the first RF chip 220 is coupled to the first connection port 211 of the first connector 210. The second port 222 of the first RF chip 220 is coupled to the second connection port 212 of the first connector 210.

[0059] In one embodiment, the first connector 210 is used to connect to an external circuit. In one embodiment, the first connector 210 can be connected to the connectors of other RFID tags (such as plugging, clamping, etc.).

[0060] The first end of component 230 is coupled to the first port 221 of the first radio frequency chip 220 and the first connection port 211 of the first connector 210, and the second end of component 230 is coupled to the second port 222 of the first radio frequency chip 220 and the second connection port 212 of the first connector 210. In one embodiment, component 230 is coupled between the first port 221 and the second port 222 of the first radio frequency chip 220. In one embodiment, component 230 is coupled between the first connection port 211 and the second connection port 212 of the first connector 210.

[0061] According to an embodiment of the present application, the first radio frequency identification tag 200 (for example, the first radio frequency identification tag 200 serves as a controlled tag) is connected to the second radio frequency identification tag 300 (for example, the second radio frequency identification tag 300 serves as a master tag) through the first connector 210, as Figure 4 shown.

[0062] The second radio frequency identification tag 300 outputs a detection signal (for example, an electrical signal with a high level). Since component 230 is coupled between the two connection ports of the first connector 210, component 230 can form a current path, enabling the detection signal to flow through component 230 and return to the second radio frequency identification tag 300, as Figure 4 shown. The second radio frequency identification tag 300 can determine the connection state between the second radio frequency identification tag 300 and the first radio frequency identification tag 200 based on the detection signal.

[0063] It should be understood that in the embodiment of the present application, the connection state can be understood as the electrical connection relationship between two radio frequency identification tags. For example, if the first radio frequency identification tag 200 and the second radio frequency identification tag 300 are connected through a connector and signals can be transmitted through the internal circuit between the first radio frequency identification tag 200 and the second radio frequency identification tag 300, it can be considered that the connection state between the first radio frequency identification tag 200 and the second radio frequency identification tag 300 is in a conducting state. When the first radio frequency identification tag 200 and the second radio frequency identification tag 300 cannot transmit signals through the internal circuit, it can be considered that the connection state between the first radio frequency identification tag 200 and the second radio frequency identification tag 300 is in a non-conducting state.

[0064] In one embodiment, when the second radio frequency identification tag 300 detects the returned detection signal (for example, current or voltage), the second radio frequency identification tag 300 determines that the second radio frequency identification tag 300 is connected to the first radio frequency identification tag 200. In one embodiment, when the second radio frequency identification tag 300 does not detect the returned detection signal (for example, current or voltage), the second radio frequency identification tag 300 determines that the second radio frequency identification tag 300 is not connected to the first radio frequency identification tag 200.

[0065] In one embodiment, the component 230 may be a distributed component or a lumped component. In one embodiment, the component 230 may also be a circuit.

[0066] It should be understood that the component 230 may be a single device or a circuit including multiple devices, such as Figure 5 as shown. In one embodiment, the component 230 may also be multiplexed to implement other functions of the first radio frequency identification tag 200, and the embodiments of the present application do not limit this.

[0067] In one embodiment, the component 230 may be a resistor or a circuit equivalent to a resistor.

[0068] It should be understood that in actual production or design, the type of the component 230 may be determined according to a detection signal (for example, current or voltage). For example, the component 230 may also be a capacitor, equivalent to a capacitor, an inductor or equivalent to an inductor. The embodiments of the present application do not limit this and can be adjusted according to actual production or design.

[0069] In one embodiment, the equivalent resistance value of the component 230 (when the component 230 is a lumped component, it can be understood as the resistance value) is less than or equal to 2 MΩ.

[0070] It should be understood that when the equivalent resistance value of the component 230 is within the above range, after the detection signal output by the second radio frequency identification tag 300 flows through the component 230, the detection signal returned to the second radio frequency identification tag 300 has a strong intensity (the intensity of current or voltage), which is convenient for the second radio frequency identification tag 300 to identify the signal and improves the accuracy of identification.

[0071] In one embodiment, the first radio frequency identification tag 200 further includes a first antenna 240. The third port 223 of the first radio frequency chip 220 is coupled to the positive terminal port of the first antenna 240, and the fourth port 224 of the first radio frequency chip 220 is coupled to the negative terminal port of the first antenna 240.

[0072] It should be understood that the first radio frequency identification tag 200 can communicate with an external device through the first antenna 240. For example, it can send a signal to a reader through the first antenna 240 or receive a signal sent by the reader through the first antenna 240.

[0073] In one embodiment, the first radio frequency identification tag 200 further includes a first substrate 250. In one embodiment, the first connector 210, the first radio frequency chip 220 and the component 230 are located on the first substrate 250. In one embodiment, the first antenna 240 is located on the first substrate 250.

[0074] It should be understood that the first substrate 250 is used to carry the components included in the first radio frequency identification tag 200.

[0075] In one embodiment, the first port 221 of the first radio frequency chip 220 is a voltage output (Vout) port. In one embodiment, the second port 222 of the first radio frequency chip 220 is a ground (GND) port, as Figure 3 shown.

[0076] In one embodiment, the third port 224 of the first radio frequency chip 220 is a radio frequency positive (RFP) port. In one embodiment, the fourth port 224 of the first radio frequency chip 220 is a radio frequency negative (RFN) port.

[0077] It should be understood that Figure 3 shows a connection manner of the component 230 and the first antenna 240 to the first radio frequency chip 220 respectively. In actual production or design, there can be various different connection manners between the component 230 and the first radio frequency chip 220. In one embodiment, the first port 221 of the first radio frequency chip 220 is a voltage drain drain (VDD) port. In one embodiment, the second port 222 of the first radio frequency chip 220 is a radio frequency negative (RFN) port, as Figure 6 shown. The second port 222 and the fourth port 224 are the same. The embodiments of the present application do not limit the connection manner between the component 230 and the first radio frequency chip 220, and can be adjusted according to actual production or design.

[0078] In one embodiment, the second radio frequency identification tag 300 may include a second connector 310 and a second radio frequency chip 320, as Figure 4 shown. The first port 321 of the second radio frequency chip 320 is coupled to the first connection port of the second connector 310. The second port 322 of the second radio frequency chip 320 is coupled to the second connection port of the second connector 310.

[0079] In one embodiment, the second radio frequency identification tag 300 may include a second antenna 340. The third port of the second radio frequency chip 320 is coupled to the positive port of the second antenna 340, and the fourth port of the second radio frequency chip 320 is coupled to the negative port of the second antenna 340.

[0080] In one embodiment, the second connector 310 and the second radio frequency chip 320 may be located on the second substrate.

[0081] It should be understood that the second radio frequency identification tag 300 may have a similar structure to the first radio frequency identification tag 200. The difference between the second radio frequency identification tag 300 and the first radio frequency identification tag 200 lies only in the component 230. The first radio frequency identification tag 200 may be used as the controlled tag in the above embodiments. The second radio frequency identification tag 300 may be used as the master tag in the above embodiments.

[0082] In one embodiment, the first port of the second radio frequency chip 320 is a voltage output (Vout) port. In one embodiment, the second port of the second radio frequency chip 320 is a ground (GND) port.

[0083] In one embodiment, the first port of the second radio frequency chip 320 is used to couple with the first port 221 of the first radio frequency chip 220. In one embodiment, the second port of the second radio frequency chip 320 is used to couple with the second port 222 of the first radio frequency chip 220.

[0084] It should be understood that the second radio frequency identification tag 300 can be used to output a detection signal. Since there is a component 230 coupled between the first port 221 and the second port 222 of the first radio frequency chip 220, the detection signal can return to the second radio frequency identification tag 300 after flowing through the component 230.

[0085] Figure 7 It is a schematic diagram of a pairing method 400 for radio frequency identification tags provided by an embodiment of the present application.

[0086] It should be understood, Figure 7 The shown method 400 can be applied to a radio frequency identification system. The radio frequency identification system includes a reader, a master tag, and a controlled tag. Among them, the controlled tag can be the first radio frequency identification tag 200 in the above embodiments. The master tag can be the second radio frequency identification tag 300 in the above embodiments.

[0087] As Figure 7 shown, the method 400 includes:

[0088] S410, the reader sends a first signal to the master tag. Among them, the first signal is used to instruct the master tag to send a detection signal to the controlled tag.

[0089] It should be understood that the detection signal can be a high-level electrical signal output by the master tag (for example, the radio frequency chip in the master tag). The master tag can determine the connection state between the master tag and the controlled tag according to the detection signal.

[0090] In one embodiment, before S410, the method 400 may further include: S440, the reader broadcasts an activation signal, and the activation signal is used to activate the master tag and the controlled tag.

[0091] It should be understood that before radio frequency identification is performed, the master tag and the controlled tag can be in a dormant (silent) state to save energy. After the reader is activated, the master tag and the controlled tag are activated after receiving the activation signal.

[0092] In one embodiment, the activation signal may include a first select instruction, which can be used to filter out the controllable tags and can also be used to instruct the master tag to report the identifier corresponding to the master tag.

[0093] Herein, the identifier can be understood as the encoding used to identify the radio frequency identification tag. Each master tag or controlled tag has a unique identifier. For example, the identifier can be a unique string of digital codes, and one identifier corresponds to a unique radio frequency identification tag.

[0094] In one embodiment, the reader obtains the identifier list of all the master tags in the optical cross-connect box according to the reported identifiers. In one embodiment, the reader can select one master tag from the identifier list of the master tags and send a first signal to it.

[0095] S420, the reader receives a second signal. Wherein, the second signal is used to indicate the connection status between the master tag and the controlled tag.

[0096] In one embodiment, the second signal can be sent by the master tag.

[0097] In one embodiment, before S420, method 400 may further include the reader sending a third signal to the master tag. Wherein, the third signal is used to instruct the master tag to send the connection status between the master tag and the controlled tag to the reader. The reader receives the second signal sent by the master tag.

[0098] In one embodiment, the second signal can be sent by the controlled tag.

[0099] In one embodiment, before S420, method 400 may further include the reader sending a fourth signal to the controlled tag. Wherein, the fourth signal is used to instruct the controlled tag to send the connection status between the master tag and the controlled tag to the reader. The reader receives the second signal sent by the controlled tag.

[0100] It should be understood that the second signal can be sent by the master tag or the controlled tag, and the embodiments of the present application do not limit this, and it can be adjusted according to actual production or design.

[0101] It should be understood that the optical cross-connect box includes multiple ports, each of which is provided with a radio frequency identification tag (master tag). Some of the multiple ports are connected to optical fibers, and some are empty ports (not connected to optical fibers). That is, some of the multiple master tags are connected to controlled tags, and some are not connected to controlled tags. Therefore, when the second signal is sent by the master tag, the reader can receive the second signal sent by each master tag.

[0102] When the second signal is sent by the controlled tag, the reader does not receive the second signal sent by the controlled tag due to various factors (for example, the reader is not aligned with the tag, the distance is far, external interference, etc.), which makes it impossible to determine whether the second signal is not received due to external factors, or the port is empty and the corresponding controlled tag is not set. Therefore, the reader needs to send the fourth signal multiple times to exclude the possibility that the second signal is not received due to external factors, which reduces efficiency.

[0103] S430, when q is connected to the controlled tag, the reader sends pairing information to the master tag, wherein the pairing information is used to instruct the master tag to pair with the controlled tag.

[0104] In one embodiment, the second signal is used to indicate that the master tag is connected to the controlled tag. When the master tag and the controlled tag are connected, the reader sends pairing information to the master tag.

[0105] In one embodiment, the second signal is used to indicate that the master tag is not connected to the controlled tag. When the master tag and the controlled tag are not connected, the reader does not send pairing information to the master tag.

[0106] It should be understood that when the reader determines that the master tag and the controlled tag are connected, it instructs the master tag and the controlled tag to enter a pairing process. For the sake of brevity, the pairing process will not be described in detail.

[0107] Figure 8 It is a schematic diagram of a radio frequency identification tag pairing method 500 provided in an embodiment of the present application.

[0108] It should be understood that Figure 8 The method 500 shown can be applied to a radio frequency identification system. The radio frequency identification system includes a reader, a master tag and a controlled tag. The controlled tag can be the first radio frequency identification tag 200 in the above embodiment. The master tag can be the second radio frequency identification tag 300 in the above embodiment.

[0109] S510, the reader sends a first signal to the master tag, wherein the first signal is used to instruct the master tag to send a detection signal to the controlled tag.

[0110] It should be understood that the detection signal can be a high-level electrical signal output by the master tag (e.g., the RF chip in the master tag). The master tag can determine the connection status between the master tag and the slave tag based on the detection signal.

[0111] In one embodiment, before S510, method 500 may further include: S560, the reader broadcasts an activation signal, and the activation signal is used to activate the master tag and the slave tag.

[0112] It should be understood that before radio frequency identification is performed, the master tag and the slave tag can be in a dormant (silent) state to save energy. After the reader is started, the master tag and the slave tag are activated after receiving the activation signal.

[0113] In one embodiment, the activation signal may include a first select instruction, and the first select instruction can be used to filter out controllable tags and can also be used to instruct the master tag to report the identifier corresponding to the master tag.

[0114] Among them, the identifier can be understood as the code used to identify the radio frequency identification tag. Each master tag or slave tag has a unique identifier. For example, the identifier can be a unique string of digital codes, and one identifier corresponds to a unique radio frequency identification tag.

[0115] In one embodiment, the reader obtains the identifier list of all master tags in the optical cross-connect box according to the reported identifier. In one embodiment, the reader can select a master tag from the identifier list of the master tags and send a first signal to it.

[0116] S520, the master tag receives the first signal from the reader and sends a detection signal to the slave tag.

[0117] In one embodiment, the master tag receives the first signal from the reader, and the detection signal is output between the first port and the second port of the RF chip in the master tag.

[0118] S530, the master tag determines the connection status between the master tag and the slave tag according to the detection signal.

[0119] It should be understood that in one embodiment, when the master tag detects the returned detection signal (e.g., current or voltage), the master tag determines that the master tag is connected to the slave tag. In one embodiment, when the master tag does not detect the returned detection signal (e.g., current or voltage), the master tag determines that the master tag is not connected to the slave tag.

[0120] In one embodiment, the master tag can update the status bit according to the detection signal, and the status bit can be used to indicate the connection status between the master tag and the slave tag.

[0121] S540, the master tag sends a second signal to the reader, and the second signal is used to indicate the connection status between the master tag and the slave tag.

[0122] In one embodiment, the second signal may include the updated status bit of the master tag.

[0123] In one embodiment, before S540, method 500 may further include: S570, the reader sends a third signal to the master tag.

[0124] Wherein, the third signal is used to indicate that the master tag sends the connection status between the master tag and the slave tag to the reader. After receiving the third signal from the reader, the master tag sends the above-mentioned second signal to the reader.

[0125] In one embodiment, the third signal may include an inventory (query) instruction. After receiving the inventory instruction from the reader, the master tag sends the identification of the master tag to the reader.

[0126] In one embodiment, the third signal may include a read instruction. After receiving the read instruction from the reader, the master tag sends the connection status (the second signal) between the master tag and the slave tag to the reader.

[0127] S550, when the master tag and the slave tag are connected, the reader sends pairing information to the master tag. Wherein, the pairing information is used to indicate that the master tag and the slave tag are paired.

[0128] In one embodiment, the second signal is used to indicate the connection between the master tag and the slave tag. When the master tag and the slave tag are connected, the reader sends pairing information to the master tag.

[0129] In one embodiment, the second signal is used to indicate that the master tag and the slave tag are not connected. When the master tag and the slave tag are not connected, the reader does not send pairing information to the master tag.

[0130] It should be understood that when the reader determines that the master tag and the slave tag are connected, it indicates that the master tag and the slave tag enter the pairing process. For the sake of brevity of discussion, the pairing process will not be elaborated one by one.

[0131] Figure 9 It is a schematic diagram of a pairing method 600 for a radio frequency identification tag provided by an embodiment of the present application.

[0132] It should be understood, Figure 9The method 600 shown can be applied to a radio frequency identification system. The radio frequency identification system includes a reader, a master tag, and a controlled tag. Among them, the controlled tag can be the first radio frequency identification tag 200 in the above embodiment. The master tag can be the second radio frequency identification tag 300 in the above embodiment.

[0133] S610, the reader sends a first signal to the master tag. Among them, the first signal is used to instruct the master tag to send a detection signal to the controlled tag.

[0134] It should be understood that the detection signal can be a high-level electrical signal output by the master tag (for example, the radio frequency chip in the master tag). The master tag can determine the connection state between the master tag and the controlled tag according to the detection signal.

[0135] In one embodiment, before S610, the method 600 may further include: S660, the reader broadcasts an activation signal, and the activation signal is used to activate the master tag and the controlled tag.

[0136] It should be understood that before radio frequency identification is performed, the master tag and the controlled tag can be in a sleep (silent) state to save energy. When the reader is started, the master tag and the controlled tag are activated after receiving the activation signal.

[0137] In one embodiment, the activation signal may include a first select instruction, and the first select instruction can be used to filter out controllable tags and can also be used to instruct the master tag to report the identifier corresponding to the master tag.

[0138] Among them, the identifier can be understood as the code used to identify the radio frequency identification tag. Each master tag or controlled tag has a unique identifier. For example, the identifier can be a unique string of digital codes, and one identifier corresponds to a unique radio frequency identification tag.

[0139] In one embodiment, the reader obtains the identifier list of all master tags in the optical cross-connect box according to the reported identifier. In one embodiment, the reader can select one master tag from the identifier list of the master tags and send the first signal to it.

[0140] S620, the master tag receives the first signal from the reader and sends a detection signal to the controlled tag.

[0141] In one embodiment, the master tag receives the first signal from the reader, and the detection signal is output between the first port and the second port of the radio frequency chip in the master tag.

[0142] S630, the controlled tag determines the connection state between the master tag and the controlled tag according to the detection signal.

[0143] It should be understood that in one embodiment, when the controlled tag detects the detection signal (e.g., current or voltage) sent by the master tag, the controlled tag determines that the master tag is connected to the controlled tag.

[0144] In one embodiment, the controlled tag can update the status bit according to the detection signal, and the status bit can be used to indicate the connection status between the master tag and the controlled tag.

[0145] S640, the controlled tag sends a second signal to the reader, and the second signal is used to indicate the connection status between the master tag and the controlled tag.

[0146] In one embodiment, the second signal can include the updated status bit of the controlled tag.

[0147] In one embodiment, before S640, method 600 may further include: S670, the reader sends a third signal to the controlled tag.

[0148] Wherein, the third signal is used to indicate that the controlled tag sends the connection status between the master tag and the controlled tag to the reader. After receiving the third signal from the reader, the controlled tag sends the above-mentioned second signal to the reader.

[0149] In one embodiment, the third signal can include an inventory (query) instruction. After receiving the inventory instruction from the reader, the controlled tag sends the identification of the controlled tag to the reader. In one embodiment, after receiving the inventory instruction from the reader, the controlled tag sends the connection status (second signal) between the master tag and the controlled tag to the reader.

[0150] S650, when the master tag and the controlled tag are connected, the reader sends pairing information to the master tag. Wherein, the pairing information is used to indicate that the master tag and the controlled tag are paired.

[0151] In one embodiment, the second signal is used to indicate that the master tag and the controlled tag are connected. When the master tag and the controlled tag are connected, the reader sends pairing information to the master tag.

[0152] It should be understood that when the reader determines that the master tag and the controlled tag are connected, it indicates that the master tag and the controlled tag enter the pairing process. For the sake of brevity of discussion, the pairing process will not be elaborated one by one.

[0153] Figure 10 is a schematic block diagram of a radio frequency identification device (radio frequency identification device) according to an embodiment of the present application.

[0154] Such as Figure 10As shown, a radio frequency identification device (RFID device) includes a processing circuit 810 and a transceiver circuit 820. The processing circuit 810 and the transceiver circuit 820 can be connected or coupled to each other, for example, connected to each other through a bus 830. The radio frequency identification device (RFID device) can be the RFID tag, reader, etc. in the above embodiments. In one embodiment, the transceiver circuit 820 can be understood as the antenna in the above embodiments.

[0155] In one embodiment, the radio frequency identification device may further include a memory 840. The memory 840 includes but is not limited to a random access memory (RAM), a read-only memory (ROM), an erasable programmable read only memory (EPROM), or a compact disc read-only memory (CD-ROM). The memory 840 is used for relevant instructions and data.

[0156] The processing circuit 810 can be all or part of the processing circuits in one or more processors, or, be one or more processors. Among them, the processor can be a central processing unit (CPU). When the processing circuit 810 is a CPU, the CPU can be a single-core CPU or a multi-core CPU. Among them, the processing circuit 810 can be a signal processor, a chip, or other integrated circuits that can implement the method of the present application, or a partial circuit for the processing function in the foregoing processor, chip, or integrated circuit. In addition, the transceiver circuit 820 can also be a transceiver, or, an input / output interface. The input / output interface is used for the input or output of signals or data, and can also be referred to as an input / output circuit.

[0157] The specific content for the radio frequency identification device (RFID device) to implement can refer to the content shown in the above method embodiments.

[0158] Figure 10 The implementation of each operation in can also correspondingly refer to Figures 1 to 7 the corresponding description of the method embodiment shown.

[0159] Figure 11 is a schematic block diagram of another radio frequency identification device (RFID device) of the embodiments of the present application.

[0160] It should be immediate, Figure 11 The radio frequency identification device (RFID device) shown can be used to implement the method involved in the above embodiments.

[0161] Among them, the radio frequency identification device (radio frequency identification apparatus) includes a transceiver unit 910 and a processing unit 920. The transceiver unit 910 and the processing unit 920 will be introduced exemplarily below.

[0162] The transceiver unit 910 may include a transmitting unit and a receiving unit. The transmitting unit is used to perform the transmitting action of the radio frequency identification device, and the receiving unit is used to perform the receiving action of the radio frequency identification device. For ease of description, in the embodiments of the present application, the transmitting unit and the receiving unit are combined into one transceiver unit. A unified description is made here and will not be repeated later.

[0163] In one embodiment, the radio frequency identification device further includes a storage unit 930, and the storage unit 930 is used to store programs or codes for executing the foregoing method.

[0164] Figure 11 The transceiver unit in Figure 10 may correspond to the Figure 11 transceiving circuit in Figure 10 and the processing unit in

[0165] Figure 10 and Figure 11 The device embodiments shown in Figures 7 to 9 are used to implement Figure 10 and Figure 11 The specific execution steps and methods of the device shown in

[0166] The present application also provides a chip, including a processor, which is used to call and run instructions stored in the memory, so that a communication device installed with the chip executes the methods in the above examples. The memory may be integrated within the chip, or located outside the chip.

[0167] The present application also provides another chip, including: an input interface, an output interface, and a processing circuit. The input interface, the output interface, and the processor are connected through an internal connection path. The processing circuit is used to execute the code in the memory. When the code is executed, the processing circuit is used to execute the methods in the above examples.

[0168] Optionally, the chip further includes a memory, and the memory is used to store computer programs or codes. Among them, the input interface and the output interface may be independent of each other, or may be integrated into an input / output interface.

[0169] The processing circuit may be all or part of the processing circuits in one or more processors, or one or more processors.

[0170] The present application also provides a processor for coupling with a memory and for executing the methods and functions related to network devices or terminal devices in any one of the above embodiments.

[0171] In another embodiment of the present application, a computer program product including instructions is provided. When the computer program product runs on a computer, the methods of the foregoing embodiments are implemented.

[0172] The present application also provides a computer program. When the computer program runs on a computer, the methods of the foregoing embodiments are implemented.

[0173] In another embodiment of the present application, a computer-readable storage medium is provided. The computer-readable storage medium stores a computer program, and when the computer program is executed by a computer, the methods described in the foregoing embodiments are implemented.

[0174] It should be understood that in the embodiments of the present application, the processor may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0175] It should also be understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of random access memory (RAM) are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include but not be limited to these and any other suitable types of memory.

[0176] The above embodiments can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, the above embodiments can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that contains a collection of one or more available media. The available medium can be a magnetic medium (such as a floppy disk, hard disk, magnetic tape), an optical medium (such as a DVD), or a semiconductor medium. The semiconductor medium can be a solid-state drive.

[0177] It should be understood that in various embodiments of the present application, the magnitudes of the serial numbers of the above processes do not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0178] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or by a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this application. Those skilled in the art can clearly understand that for the convenience and conciseness of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments, and will not be elaborated herein. In several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of units is only a logical function division, and there may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces, and the indirect couplings or communication connections of devices or units can be electrical, mechanical, or other forms.

[0179] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment. In addition, the functional units in each embodiment of this application can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. If the above functions are implemented in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in each embodiment of this application. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories, random access memories, magnetic disks, or optical discs that can store program codes.

[0180] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. A professional technician can use different methods to implement the described functions for each specific application, but such an implementation should not be considered to exceed the scope of this application.

Claims

1. A radio frequency identification tag, characterized in that: include: Connectors; A radio frequency chip, wherein a first port of the radio frequency chip is coupled and connected to the first connection port of the connector, and a second port of the radio frequency chip is coupled and connected to the second connection port of the connector; An element, a first end of the element is coupled to the first port and the first connection port, and a second end of the element is coupled to the second port and the second connection port.

2. The RFID tag according to claim 1, characterized in that: The element is a resistor, or the element is a circuit equivalent to a resistor.

3. The RFID tag according to claim 1 or 2, characterized in that: The equivalent resistance of the element is less than or equal to 2 MΩ.

4. The RFID tag according to claim 1, characterized in that: The first port is a power port, and the second port is a negative pole port of the antenna.

5. The RFID tag according to claim 1, characterized in that: The first port is a voltage output port, and the second port is a ground port.

6. The RFID tag according to claim 1, characterized in that: The RFID tag further includes an antenna, the third port of the RFID chip is coupled to the positive port of the antenna, and the fourth port of the RFID chip is coupled to the negative port of the antenna.

7. The RFID tag according to claim 1, characterized in that: The radio frequency identification tag further comprises a substrate, and the connector, the radio frequency chip and the element are located on the substrate.

8. An optical fiber, characterized in that: It comprises a radio frequency identification tag and an optical fiber connection port as claimed in any one of claims 1 to 7, wherein the radio frequency identification tag is fixedly connected to the optical fiber connection port.

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