Communication method and related device, storage medium and computer program product

Abstract

The embodiment of the invention discloses a communication method and a related device, a storage medium and a computer program product, a first relay read-write device is located in a coverage range of a radio frequency identification (RFID) reader-writer, and the communication method applied to the first relay read-write device comprises the following steps: sending a first instruction in response to a relay read-write instruction sent by the RFID reader-writer; receiving first data sent by the first passive tag in response to the first instruction; wherein the first passive tag is an excited passive electronic tag in a communication area where the first relay read-write device is located within the coverage range of the RFID reader-writer; and the first passive tag is excited by an excitation signal sent by the RFID reader-writer.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of radio frequency identification technology, and in particular to a communication method and related devices, storage media, and computer program products. Background Art

[0002] Warehouse management is one of the important links in the logistics industry. The warehouse management system using Radio Frequency Identification (RFID) technology can improve the automation level of warehouse management. RFID technology is a non-contact automatic identification technology. Each product has a code. Each product carries an RFID electronic tag. The radio frequency signal automatically identifies the electronic tag of the product and obtains relevant data information.

[0003] See also Figure 1 In the warehouse scenario, RFID device antennas can be deployed at fixed locations and connected to RFID readers. The back-end control center is responsible for the command control of the decision-making equipment. Passive electronic tags within the coverage of the RFID reader are activated and report tag information or perform other command operations.

[0004] However, on the one hand, due to changes in the position of the entire pallet of goods, stacking of pallets, obstruction of the surrounding environment, interference between antennas, etc., passive electronic tags may not be able to respond normally and it is difficult to locate the tags. On the other hand, when multiple passive electronic tags send data at the same time, communication conflicts and data interference will occur, and the process of handling collisions requires more time and resources. Summary of the invention

[0005] The embodiments of the present application provide a communication method and related devices, storage media, and computer program products. By introducing a relay reader / writer between an RFID reader / writer and a passive electronic tag, the relay reader / writer communicates and interacts with the passive electronic tag, which can effectively avoid a large number of passive electronic tags communicating with the RFID reader / writer at the same time. This can not only reduce interference between passive electronic tags, ensure normal response of passive electronic tags, improve communication success rate, but also facilitate tag positioning.

[0006] The technical solution of the embodiment of the present application is implemented as follows:

[0007] The embodiment of the present application provides a communication method, which is applied to a first relay reader / writer, wherein the first relay reader / writer is located within the coverage range of an RFID reader / writer, and the method includes:

[0008] In response to the relay read / write instruction sent by the RFID reader / writer, send a first instruction;

[0009] receiving first data sent by a first passive tag in response to the first instruction;

[0010] Wherein, the first passive tag is a passive electronic tag that is excited within the coverage range of the RFID reader and the communication area where the first relay reader is located;

[0011] The first passive tag is excited by the excitation signal sent by the RFID reader.

[0012] In the above method, the first relay read / write device includes an active electronic tag, and in response to the relay read / write instruction sent by the RFID reader / writer, before sending the first instruction, the method further includes:

[0013] Using the active electronic tag, receiving the relay read / write instruction and writing the relay read / write instruction into an instruction storage area;

[0014] The instruction storage area is monitored, and the first instruction is generated by reading and parsing the relay read and write instructions.

[0015] In the above method, after receiving the first data sent by the first passive tag in response to the first instruction, the method further includes:

[0016] storing the first data in a data storage area;

[0017] In response to the data reading instruction sent by the RFID reader / writer, the first data is read from the data storage area and sent to the RFID reader / writer.

[0018] The embodiment of the present application provides a communication method, which is applied to an RFID reader / writer, wherein a first relay reader / writer is deployed within the coverage area of ​​the RFID reader / writer, and the method includes:

[0019] Sending an excitation signal to excite a passive electronic tag within the coverage area of ​​the RFID reader;

[0020] Sending a relay read / write instruction to the first relay read / write device, so that the first relay read / write device responds to the relay read / write instruction and communicates and interacts with the first passive tag;

[0021] The first passive tag is a passive electronic tag that is excited within the coverage of the RFID reader and the communication area where the first relay reader is located.

[0022] In the above method, before sending the relay read / write instruction to the first relay read / write device, the method further includes:

[0023] Send query command;

[0024] Receiving query information sent by one or more relay reader / writers within the coverage area of ​​the RFID reader / writer in response to the query instruction;

[0025] Based on the received query information, the one or more relay read-write devices are recorded.

[0026] In the above method, it also includes:

[0027] The first relay read-write device is selected from the one or more relay read-write devices.

[0028] The embodiment of the present application provides a first relay reading and writing device, which is located within the coverage range of an RFID reader / writer, and includes:

[0029] The tag reading and writing module is used to send a first instruction in response to the relay reading and writing instruction sent by the RFID reader and writer; receive first data sent by the first passive tag in response to the first instruction;

[0030] Wherein, the first passive tag is a passive electronic tag that is excited within the coverage range of the RFID reader and the communication area where the first relay reader is located;

[0031] The first passive tag is excited by the excitation signal sent by the RFID reader.

[0032] The embodiment of the present application provides an RFID reader / writer, wherein a first relay reading / writing device is deployed within the coverage range of the RFID reader / writer, including:

[0033] A communication interaction module, used to send an excitation signal to excite the passive electronic tag within the coverage of the RFID reader; send a relay read / write instruction to the first relay read / write device, so that the first relay read / write device responds to the relay read / write instruction and communicates with the first passive tag;

[0034] The first passive tag is a passive electronic tag that is excited within the coverage of the RFID reader and the communication area where the first relay reader is located.

[0035] The embodiment of the present application provides a first relay reading and writing device, including: a first processor, a first memory and a first communication bus;

[0036] The first communication bus is used to implement a communication connection between the first processor and the first memory;

[0037] The first processor is used to execute one or more computer programs stored in the first memory to implement a communication method applied to the first relay reading and writing device.

[0038] The embodiment of the present application provides an RFID reader / writer, including: a second processor, a second memory, and a second communication bus;

[0039] The second communication bus is used to realize the communication connection between the second processor and the second memory;

[0040] The second processor is used to execute one or more computer programs stored in the second memory to implement the communication method applied to the RFID reader / writer.

[0041] An embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps of the communication method applied to the first relay reader / writer are implemented, or the steps of the communication method applied to the RFID reader / writer are implemented.

[0042] An embodiment of the present application provides a computer program product, including a computer program, which, when executed, implements the steps of a communication method applied to a first relay reader / writer, or the steps of a communication method applied to an RFID reader / writer.

[0043] The embodiment of the present application provides a communication method and related devices, storage media, and computer program products. The first relay read-write device is located within the coverage of a radio frequency identification RFID reader / writer. The communication method applied to the first relay read-write device includes: sending a first instruction in response to a relay read-write instruction sent by the RFID reader / writer; receiving first data sent by the first passive tag in response to the first instruction; wherein the first passive tag is a passive electronic tag that is excited in the communication area where the first relay read-write device is located within the coverage of the RFID reader / writer; the first passive tag is excited by the excitation signal sent by the RFID reader / writer. The technical solution provided by the embodiment of the present application can effectively avoid a large number of passive electronic tags from communicating with the RFID reader / writer at the same time by introducing a relay read-write device between the RFID reader / writer and the passive electronic tag, and the relay read-write device communicates and interacts with the passive electronic tag. It can not only reduce the interference between the passive electronic tags, ensure the normal response of the passive electronic tags, and improve the communication success rate, but also facilitate tag positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 A schematic diagram of a tag reading scenario in the prior art;

[0045] Figure 2 A schematic diagram of an exemplary tag reading scenario provided in an embodiment of the present application;

[0046] Figure 3 A flow chart of a communication method provided in an embodiment of the present application Figure 1;

[0047] Figure 4 A flow chart of a communication method provided in an embodiment of the present application Figure 2 ;

[0048] Figure 5 An exemplary communication interaction diagram provided for an embodiment of the present application;

[0049] Figure 6 A schematic diagram of the structure of a first relay read-write device provided in an embodiment of the present application Figure 1 ;

[0050] Figure 7 A schematic diagram of the structure of a first relay read-write device provided in an embodiment of the present application Figure 2 ;

[0051] Figure 8 A schematic diagram of the structure of a first relay read-write device provided in an embodiment of the present application Figure 3 ;

[0052] Fig. 9 A schematic diagram of the structure of an RFID reader provided in an embodiment of the present application Figure 1 ;

[0053] Fig.10 A schematic diagram of the structure of an RFID reader provided in an embodiment of the present application Figure 2 . DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0055] The following will specifically describe the technical solution of the present application and how the technical solution of the present application solves the above technical problems through embodiments and in conjunction with the accompanying drawings. The following embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

[0056] In addition, the technical solutions described in the embodiments of the present application can be combined arbitrarily without conflict.

[0057] The present application embodiment provides a communication method, which mainly involves a first relay reading and writing device and an RFID reader / writer, see Figure 2In the tag reading scenario shown, the first relay reading and writing device includes an active electronic tag, which can receive the excitation signal sent by the RFID reader through the antenna. After receiving the excitation signal, it waits for the relay reading and writing instruction sent by the RFID reader through the antenna. After receiving the relay reading and writing instruction, it sends the first instruction through its own antenna. The excitation signal and the first instruction act on the nearby passive electronic tags alternately in time division, that is, Figure 2 The passive electronic tags located above the first relay reading and writing device are activated after being acted upon by the excitation signal and receive the first instruction to reply the first data, completing the communication interaction process and realizing the data collection and other operations of the first relay reading and writing device. The passive electronic tags located on the right side of the first relay reading and writing device are not within the communication range of the first relay reading and writing device. Even if they are also excited, the first relay reading and writing device does not communicate and interact with these passive electronic tags. The control center is responsible for the command control of the decision-making equipment. Not only can the RFID reader and writer communicate and interact with the control center, but the first relay reading and writing device can also establish a data communication link with the control center to meet the real-time communication and data interaction requirements. The technical solution of the present application is described in detail below from both the first relay reading and writing device and the RFID reader and writer.

[0058] Figure 3 A flow chart of a communication method provided in an embodiment of the present application Figure 1 In an embodiment of the present application, the first relay reading and writing device is located within the coverage area of ​​the RFID reader, such as Figure 3 As shown, the communication method applied to the first relay reading and writing device mainly includes the following steps:

[0059] S101. In response to a relay read / write instruction sent by an RFID reader / writer, send a first instruction.

[0060] In an embodiment of the present application, the RFID reader / writer may send a relay read / write instruction to a first relay read / write device within its coverage area, based on which the first relay read / write device responds to the relay read / write instruction and sends a first instruction.

[0061] In an embodiment of the present application, the first instruction may be determined based on a relay read / write instruction sent by the RFID reader / writer.

[0062] In an embodiment of the present application, the first relay device responds to the relay read and write instructions sent by the RFID reader and writer, and before sending the first instruction, it can also perform the following steps: using an active electronic tag to receive the relay read and write instructions and write the relay read and write instructions into an instruction storage area; monitoring the instruction storage area, and generating a first instruction by reading and parsing the relay read and write instructions.

[0063] It should be noted that, in the embodiment of the present application, the first relay read / write device includes an active electronic tag, which can receive the relay read / write instruction sent by the RFID reader / writer through the antenna, and then send the first instruction through its own antenna.

[0064] It should be noted that in the embodiment of the present application, when the active electronic tag of the first relay read-write device receives the relay read-write instruction, it can execute the write command and write the relay read-write instruction into the specified instruction storage area. The first relay read-write device continuously monitors its own instruction storage area, and when it finds that there is a relay read-write instruction in the instruction storage area, it reads the relay read-write instruction from the instruction storage area. The relay read-write instruction indicates the operation to be performed, such as a tag reading operation, a tag writing operation, etc. The operation indicated by the relay read-write instruction can be parsed and an instruction that complies with the operation can be generated, i.e., the first instruction. The specific first instruction includes, but is not limited to, instructions for reading tag information, instructions for writing information to tags, etc., which are not limited in the embodiment of the present application.

[0065] It should be noted that in the embodiment of the present application, the first relay read-write device can also use the active electronic tag to receive the excitation signal sent by the RFID reader. The RFID reader sends the excitation signal to stimulate the passive electronic tags within its coverage range. For the first relay read-write device, after receiving the excitation signal, it will wait for subsequent relay read-write instructions.

[0066] S102, receiving first data sent by a first passive tag in response to a first instruction; wherein the first passive tag is a passive electronic tag that is excited within the coverage of the RFID reader and within the communication area where the first relay reader is located; the first passive tag is excited by an excitation signal sent by the RFID reader.

[0067] In an embodiment of the present application, after sending the first instruction, the first relay reading and writing device receives the first data sent by the first passive tag in response to the first instruction.

[0068] It should be noted that in the embodiment of the present application, the command sending and receiving power of the relay reader is relatively small, and only provides communication to the passive electronic tags that are excited in the communication area where the relay reader is located within the coverage of the RFID reader, that is, in a small area, and the passive electronic tags outside the communication area do not participate in the communication of the relay reader. In addition, in order to avoid signal interference when sending and receiving commands, the first relay reader command interaction is realized when the antenna of the RFID reader is switched to a low level.

[0069] It should be noted that in the embodiment of the present application, the number of the first passive tags may be one or more, each of which may receive the first instruction and respond, and accordingly, the number of the first data may be one or more. The specific number of the first passive tags is not limited in the embodiment of the present application.

[0070] In an embodiment of the present application, after the first relay reading and writing device receives the first data sent by the first passive tag in response to the first instruction, it can also perform the following steps: storing the first data in the data storage area; responding to the data reading instruction sent by the RFID reader / writer, reading the first data from the data storage area and sending it to the RFID reader / writer.

[0071] It can be understood that in an embodiment of the present application, the first relay read-write device can store the collected first data in the data storage area. When the relay read-write device receives the data reading instruction sent by the RFID reader, the relay read-write device can read the first data from the data storage area and report the first data by responding to the data reading instruction.

[0072] Figure 4 A flow chart of a communication method provided in an embodiment of the present application Figure 2 In the embodiment of the present application, a first relay reading and writing device is deployed within the coverage of the RFID reader, such as Figure 4 As shown, the communication method applied to the RFID reader / writer mainly includes the following steps:

[0073] S201, sending an excitation signal to excite a passive electronic tag within the coverage area of ​​an RFID reader.

[0074] In the embodiment of the present application, the RFID reader can send an excitation signal to excite the passive electronic tag within its coverage area.

[0075] It should be noted that, in the embodiment of the present application, the RFID reader can send an excitation signal in a time-division manner to power the passive electronic tags in the coverage area, and the passive electronic tags wait for subsequent instructions after being excited.

[0076] It should be noted that, in the embodiment of the present application, the number of passive electronic tags within the coverage of the RFID reader may be one or more, which is not limited in the embodiment of the present application.

[0077] S202, sending a relay read / write instruction to the first relay read / write device, so that the first relay read / write device responds to the relay read / write instruction and communicates with the first passive tag; wherein the first passive tag is a passive electronic tag that is excited in the communication area where the first relay read / write device is located within the coverage range of the RFID reader / writer.

[0078] In an embodiment of the present application, the RFID reader / writer may send a relay read / write instruction to the first relay read / write device.

[0079] It should be noted that in the embodiments of the present application, the relay read / write instruction indicates the operation to be performed, such as a tag read operation, a tag write operation, etc. The RFID reader / writer can send the relay read / write instruction to the first relay read / write device to trigger the first relay read / write device to communicate and interact with the first passive tag. The manner in which the first relay read / write device communicates and interacts with the first passive tag in response to the relay read / write instruction is detailed in the method steps on the first relay read / write device side, which will not be repeated here.

[0080] It should be noted that, in the embodiment of the present application, when the first relay reader / writer is in operation, the RFID reader / writer does not send other instruction messages to the passive electronic tag.

[0081] In an embodiment of the present application, one or more relay read-write devices may be deployed within the coverage of the RFID reader / writer. Before sending a relay read-write instruction, the RFID reader / writer may also discover and record each relay read-write device within its coverage. The specific steps are as follows: sending a query instruction; receiving one or more relay read-write devices within the coverage of the RFID reader / writer, responding to the query information sent by the query instruction; and recording one or more relay read-write devices based on the received query information.

[0082] It should be noted that in the embodiments of the present application, the query instruction may specifically be an instruction instructing the relay read / write device to report its device information, and the query information may specifically be the device identification, location information, etc. of the relay read / write device, which is not limited in the embodiments of the present application.

[0083] In an embodiment of the present application, the RFID reader discovers and records each relay reader within its coverage, based on which the following steps may also be performed: a first relay reader is selected from one or more relay readers.

[0084] It is understandable that in the embodiments of the present application, the RFID reader can select the first relay reader from one or more relay readers within its coverage area as required, and then send the relay reader instruction. The selected first relay reader can be one or more, and each first relay reader can execute the above-mentioned first relay reader side method steps. The RFID reader can also specify one or more first relay readers to execute the method steps as required, which is not limited in the embodiments of the present application.

[0085] The following is an exemplary description of the relevant communication interaction process based on the method steps of the first relay reader and RFID reader.

[0086] Figure 5 This is an exemplary communication interaction diagram provided in the embodiment of the present application. Figure 5 As shown, the following steps are mainly involved:

[0087] S301, interactive control between the control center and the RFID reader;

[0088] S302, the RFID reader sends an excitation signal;

[0089] S303, the RFID reader sends a query instruction;

[0090] S304, the relay reader / writer A sends query information to the RFID reader / writer;

[0091] S305, the relay reader / writer B sends query information to the RFID reader / writer;

[0092] S306, the RFID reader sends a relay read / write instruction to the relay read / write device A;

[0093] S307, relay reading and writing device A sends instruction a to passive electronic tag a;

[0094] S308, passive electronic tag a sends data a to relay reading and writing device A;

[0095] S309, relay read / write device A stores data a;

[0096] S310, the RFID reader sends a data reading instruction to the relay reader / writer A;

[0097] S311, relay reader / writer A sends data a to the RFID reader / writer;

[0098] S312, the RFID reader sends a relay read / write instruction to the relay read / write device B;

[0099] S313, the relay reading and writing device B sends instruction b to the passive electronic tag b;

[0100] S314, the passive electronic tag b sends data b to the relay reading and writing device B;

[0101] S315, relay read / write device B stores data b;

[0102] S316, the RFID reader sends a data read instruction to the relay reader B;

[0103] S317, the relay reader / writer B sends data b to the RFID reader / writer.

[0104] It should be noted that the above instructions a and b are equivalent to the first instructions of the two relay read-write devices respectively, and the above data a and data b are equivalent to the first data of the two relay read-write devices respectively.

[0105] The communication method provided in the embodiment of the present application realizes positioning management in a small area by communicating and interacting with the passive electronic tags of the goods within the communication range of the relay reading device. Compared with directly using the RFID reader to manage all passive electronic tags, the goods can be more accurately positioned and managed, and the inventory changes of the entire stack of goods can be monitored. In addition, the relay reading and writing device sends instructions at low power to implement partial tag activation instructions, which can reduce interference between tags; the relay reading and writing device is close to the passive electronic tags in the communication area where it is located, which improves the communication success rate; because the relay reading and writing device does not send an excitation signal, the power consumption is low and the battery life is long; the relay reading and writing device includes an active electronic tag, and the inventory success and positioning accuracy are higher.

[0106] The embodiment of the present application provides a first relay reading and writing device, and the first relay reading and writing device is located within the coverage range of the RFID reader / writer. Figure 6 A schematic diagram of the structure of a first relay read-write device provided in an embodiment of the present application Figure 1 .like Figure 6 As shown, in an embodiment of the present application, the first relay reading and writing device includes:

[0107] The tag reading and writing module 401 is used to send a first instruction in response to a relay reading and writing instruction sent by a radio frequency identification RFID reader and writer; receive first data sent by a first passive tag in response to the first instruction;

[0108] Wherein, the first passive tag is a passive electronic tag that is excited within the coverage range of the RFID reader and the communication area where the first relay reader is located;

[0109] The first passive tag is excited by the excitation signal sent by the RFID reader.

[0110] In one embodiment of the present application, the first relay reading and writing device includes an active electronic tag (not shown in the figure) and an instruction generating module (not shown in the figure).

[0111] The active electronic tag is used to receive the relay read / write instruction and write the relay read / write instruction into the instruction storage area;

[0112] The instruction generation module is used to monitor the instruction storage area and generate the first instruction by reading and parsing the relay read and write instructions.

[0113] In one embodiment of the present application, the tag reading and writing module 401 is further used to store the first data in a data storage area; in response to a data reading instruction sent by the RFID reader, read the first data from the data storage area and send it to the RFID reader.

[0114] Based on the same inventive concept, Figure 7 A schematic diagram of the structure of a first relay read-write device provided in an embodiment of the present application Figure 2 .like Figure 7 As shown, the first relay reading and writing device not only includes the above-mentioned tag reading and writing module 401, but also may include other related modules, as follows:

[0115] The power supply module 402 is responsible for supplying power to the entire device system, including the electronic tag module 403, the function control module 404, the tag reading and writing module 401, etc.

[0116] The electronic tag module 403 is an active RFID tag itself, adopts a semi-active power supply mode, is in a sleep mode when not stimulated, and is responsible for communicating with an external RFID reader.

[0117] The function control module 404 waits for the trigger of the electronic tag receiving module 403, and is responsible for controlling the function of the first relay reading and writing device after being awakened.

[0118] The tag reading and writing module 401 receives instructions from the function control module 404 and is responsible for issuing and receiving RFID instructions and reading tag information.

[0119] The main features of the first relay read-write device are:

[0120] The first relay reading and writing device acts as a traditional active electronic tag to interact with the RFID reader and writer, and further includes an RFID reading and writing module to support sending and receiving instructions to the passive electronic tag, and is not responsible for sending an excitation signal.

[0121] Figure 8 A schematic diagram of the structure of a first relay read-write device provided in an embodiment of the present application Figure 3 .like Figure 8 As shown, the first relay reading and writing device includes: a first processor 501, a first memory 502 and a first communication bus 503;

[0122] The first communication bus 503 is used to implement a communication connection between the first processor 501 and the first memory 502;

[0123] The first processor 501 is used to execute one or more computer programs stored in the first memory 502 to implement a communication method applied to the first relay reading and writing device.

[0124] An embodiment of the present application provides an RFID reader / writer, wherein a first relay reader / writer is deployed within the coverage area of ​​the RFID reader / writer. Fig. 9 A schematic diagram of the structure of an RFID reader provided in an embodiment of the present application Figure 1 .like Fig. 9 As shown, the RFID reader / writer includes:

[0125] The communication interaction module 601 is used to send an excitation signal to excite the passive electronic tag within the coverage of the RFID reader; send a relay read / write instruction to the first relay read / write device, so that the first relay read / write device responds to the relay read / write instruction and communicates with the first passive tag;

[0126] The first passive tag is a passive electronic tag that is excited within the coverage of the RFID reader and the communication area where the first relay reader is located.

[0127] In one embodiment of the present application, the communication interaction module 601 is further used to send a query instruction; receive query information sent by one or more relay reader / writers within the coverage area of ​​the RFID reader / writer in response to the query instruction;

[0128] The RFID reader / writer further includes an information recording module (not shown in the figure) for recording the one or more relay reading / writing devices based on the received query information.

[0129] In an embodiment of the present application, the RFID reader / writer further includes a device selection module (not shown in the figure) for selecting the first relay reader / writer device from the one or more relay reader / writer devices.

[0130] Fig.10 A schematic diagram of the structure of an RFID reader provided in an embodiment of the present application Figure 2 .like Fig.10 As shown, the RFID reader / writer includes: a second processor 701, a second memory 702 and a second communication bus 703;

[0131] The second communication bus 703 is used to implement a communication connection between the second processor 701 and the second memory 702;

[0132] The second processor 701 is used to execute one or more computer programs stored in the second memory 702 to implement a communication method applied to an RFID reader / writer.

[0133] An embodiment of the present application provides a computer program product, including a computer program, which, when executed, implements the steps of a communication method applied to a first relay reader / writer, or the steps of a communication method applied to an RFID reader / writer.

[0134] The embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps in the communication method applied to the first relay reader-writer are implemented, or the steps in the communication method applied to the RFID reader-writer. The computer-readable storage medium can be a volatile memory (volatile memory), such as a random access memory (Random-Access Memory, RAM); or a non-volatile memory (non-volatile memory), such as a read-only memory (Read-Only Memory, ROM), a flash memory (flash memory), a hard disk (Hard Disk Drive, HDD) or a solid-state drive (Solid-State Drive, SSD); or it can be a respective device including one or any combination of the above memories, such as a mobile phone, a computer, a tablet device, a personal digital assistant, etc.

[0135] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of hardware embodiments, software embodiments, or embodiments in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.

[0136] The present application is described with reference to implementation flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the process in the flowchart. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0137] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device, which is implemented in the implementation flow diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0138] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operation steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for executing the steps in the flowchart. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0139] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the utility model should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A communication method, characterized in that: Applied to a first relay reading and writing device, the first relay reading and writing device is located within the coverage of a radio frequency identification RFID reader / writer, the method comprises: In response to the relay read / write instruction sent by the RFID reader / writer, send a first instruction; receiving first data sent by a first passive tag in response to the first instruction; Wherein, the first passive tag is a passive electronic tag that is excited within the coverage range of the RFID reader and the communication area where the first relay reader is located; The first passive tag is excited by the excitation signal sent by the RFID reader.

2. The method according to claim 1, characterized in that The first relay read / write device includes an active electronic tag, and in response to the relay read / write instruction sent by the RFID reader / writer, before sending the first instruction, the method further includes: Using the active electronic tag, receiving the relay read / write instruction and writing the relay read / write instruction into an instruction storage area; The instruction storage area is monitored, and the first instruction is generated by reading and parsing the relay read and write instructions.

3. The method according to claim 1, characterized in that After receiving the first data sent by the first passive tag in response to the first instruction, the method further includes: storing the first data in a data storage area; In response to the data reading instruction sent by the RFID reader / writer, the first data is read from the data storage area and sent to the RFID reader / writer.

4. A communication method, characterized in that: Applied to a radio frequency identification (RFID) reader / writer, a first relay reading / writing device is deployed within the coverage area of ​​the RFID reader / writer, and the method includes: Sending an excitation signal to excite a passive electronic tag within the coverage area of ​​the RFID reader; Sending a relay read / write instruction to the first relay read / write device, so that the first relay read / write device responds to the relay read / write instruction and communicates and interacts with the first passive tag; The first passive tag is a passive electronic tag that is excited within the coverage of the RFID reader and the communication area where the first relay reader is located.

5. The method according to claim 4, characterized in that Before sending the relay read / write instruction to the first relay read / write device, the method further includes: Send query command; Receiving query information sent by one or more relay reader / writers within the coverage area of ​​the RFID reader / writer in response to the query instruction; Based on the received query information, the one or more relay read-write devices are recorded.

6. The method according to claim 5, characterized in that The method further comprises: The first relay read-write device is selected from the one or more relay read-write devices.

7. A first relay reading and writing device, characterized in that: The first relay reading and writing device is located within the coverage range of the radio frequency identification RFID reader / writer, and includes: The tag reading and writing module is used to send a first instruction in response to a relay reading and writing instruction sent by a radio frequency identification RFID reader and writer; receive first data sent by a first passive tag in response to the first instruction; Wherein, the first passive tag is a passive electronic tag that is excited within the coverage range of the RFID reader and the communication area where the first relay reader is located; The first passive tag is excited by the excitation signal sent by the RFID reader.

8. A radio frequency identification RFID reader / writer, characterized in that: A first relay reading and writing device is deployed within the coverage area of ​​the RFID reader / writer, including: A communication interaction module, used to send an excitation signal to excite the passive electronic tag within the coverage of the RFID reader; send a relay read / write instruction to the first relay read / write device, so that the first relay read / write device responds to the relay read / write instruction and communicates with the first passive tag; The first passive tag is a passive electronic tag that is excited within the coverage of the RFID reader and the communication area where the first relay reader is located.

9. A first relay reading and writing device, characterized in that: include: a first processor, a first memory, and a first communication bus; The first communication bus is used to implement a communication connection between the first processor and the first memory; The first processor is used to execute one or more computer programs stored in the first memory to implement the communication method according to any one of claims 1 to 3.

10. A radio frequency identification (RFID) reader / writer, characterized in that: include: a second processor, a second memory, and a second communication bus; The second communication bus is used to realize the communication connection between the second processor and the second memory; The second processor is used to execute one or more computer programs stored in the second memory to implement the communication method according to any one of claims 4 to 6.

11. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the communication method according to any one of claims 1 to 6 is implemented.

12. A computer program product, comprising a computer program, characterized in that When the computer program is executed, the communication method according to any one of claims 1 to 6 is implemented.

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