Method for quickly establishing corresponding relation between passive RFID tags, article management system and RFID reading system

Abstract

The invention relates to the technical field of radio frequency application, in particular to a method for quickly establishing a corresponding relation between passive RFID tags, an article management system and an RFID reading system.The method comprises the steps that when a specified first passive RFID tag in a first passive RFID tag group is close to a specified second passive RFID tag in a second passive RFID tag group, the second passive RFID tag is close to the specified second passive RFID tag in the second passive RFID tag group; appointing that the first passive RFID tag is in a working state; at the moment, activating a specified second passive RFID tag by using the specified first passive RFID tag; and the RFID reading system obtains position information of a preset position corresponding to the specified second passive RFID tag, and establishes a corresponding relation between the two passive RFID tags. According to the invention, only one passive RFID tag is activated at a time in a multi-tag deployment environment, and accurate positioning of the tag can be realized by using the activated passive RFID tag.

Description

Technical Field

[0001] The present disclosure relates to the field of radio frequency application technology, and in particular to a method for quickly establishing a corresponding relationship between passive RFID (Radio Frequency Identification) tags, an item management system, and an RFID reading system. Background Art

[0002] With the continuous development of RFID technology, the application of RFID technology to locate objects has penetrated into various scenarios. RFID smart filing cabinets are a typical example. The core functions of this filing cabinet cover the following aspects: quickly locate the location of files, record the use and return of files in real time, automatically count the number of files and monitor their status. Specifically, each file is equipped with an RFID tag. When the user enters the file number or name through the screen of the smart filing cabinet, the filing cabinet system can respond quickly and obtain the location information of the read file through the antenna and reader in the cabinet, thereby realizing the rapid location of the file.

[0003] exist Figure 1 In the smart filing cabinet system shown, the coverage of an antenna can generally cover multiple file boxes, so only regional positioning can be achieved, and the detailed storage location of each file cannot be accurately determined. This is because the design and working principle of the antenna determine the range of its signal coverage. In an area, when the radio frequency signal emitted by the antenna encounters multiple file boxes with RFID tags, these RFID tags will respond and return their information at the same time. However, due to the attenuation and interference of the signal when it propagates in space, as well as the possible mutual interference (such as collision) between different RFID tags, it is difficult for the reading system / computer system to accurately distinguish the exact location of each RFID tag. In a densely stored environment, such as multiple file boxes are closely arranged, these factors will further reduce the accuracy of signal reading.

[0004] Therefore, if you want to determine the specific location of each file, you need to add an independent antenna to achieve this. For example, install a small antenna on the side of each file box, and the coverage of the antenna must be small enough to cover only the corresponding file box. Then, determine the location of the file by the installation position of each small antenna, which will greatly increase the hardware cost and complexity of the system. In addition, this solution has a serious flaw. The coverage of the added independent antenna must be controllable and cannot read adjacent file labels. As the thickness of the file decreases, the difficulty of antenna design increases significantly and becomes impossible to achieve. It is impossible to achieve that one antenna can only read one file label. Summary of the invention

[0005] In order to solve the problems in the related art, the embodiments of the present disclosure provide a method for quickly establishing a corresponding relationship between passive RFID tags, an item management system, and an RFID reading system.

[0006] In a first aspect, an embodiment of the present disclosure provides a method for quickly establishing a corresponding relationship between passive RFID tags, comprising:

[0007] When a designated first passive RFID tag in the first passive RFID tag group approaches a designated second passive RFID tag in the second passive RFID tag group, the designated first passive RFID tag is within the coverage of the RFID antenna of the RFID reading system, so that the designated first passive RFID tag is converted from a non-working state to a working state, wherein the first passive RFID tag group includes a plurality of first passive RFID tags in a non-working state, the first passive RFID tag group is outside the coverage of the RFID antenna, the second passive RFID tag group includes a plurality of second passive RFID tags respectively arranged at a plurality of predetermined positions, the second passive RFID tag group is within the coverage of the RFID antenna and is in an inactive state;

[0008] The RFID reading system acquires the first identification information of the specified first passive RFID tag and saves the first identification information;

[0009] The designated first passive RFID tag activates the designated second passive RFID tag, so that the designated second passive RFID tag is converted from an inactive state to an active state;

[0010] The RFID reading system acquires the second identification information of the designated second passive RFID tag and saves the second identification information;

[0011] The RFID reading system obtains the position information of the predetermined position corresponding to the designated second passive RFID tag, and establishes a corresponding relationship between the designated first passive RFID tag and the designated second passive RFID tag according to the first identification information and the second identification information.

[0012] According to an embodiment of the present disclosure, the first passive RFID tag includes an activation component;

[0013] When the designated first passive RFID tag is converted from a non-operating state to an operating state, the activation component of the designated first passive RFID tag operates.

[0014] According to an embodiment of the present disclosure, the second passive RFID tag includes a component to be activated;

[0015] The designated first passive RFID tag activates the designated second passive RFID tag, comprising: when an activation component of the designated first passive RFID tag approaches a component to be activated of the designated second passive RFID tag, the designated first passive RFID tag activates the designated second passive RFID tag.

[0016] According to an embodiment of the present disclosure, the activation component of the first passive RFID tag is an optical signal sending component;

[0017] The component to be activated of the second passive RFID tag is an optical signal receiving component.

[0018] According to an embodiment of the present disclosure, when the activation component of the designated first passive RFID tag is close to the component to be activated of the designated second passive RFID tag, the designated first passive RFID tag activates the designated second passive RFID tag, including: when the optical signal sending component of the designated first passive RFID tag is close to the optical signal receiving component of the designated second passive RFID tag, the designated first passive RFID tag activates the designated second passive RFID tag.

[0019] According to an embodiment of the present disclosure, the activation component of the first passive RFID tag is a plug component;

[0020] The component to be activated of the second passive RFID tag is an interface component that matches the plug component.

[0021] According to an embodiment of the present disclosure, when the activation component of the designated first passive RFID tag is close to the component to be activated of the designated second passive RFID tag, the designated first passive RFID tag activates the designated second passive RFID tag, including: when the plug component of the designated first passive RFID tag is inserted into the interface component of the designated second passive RFID tag, the designated first passive RFID tag activates the designated second passive RFID tag.

[0022] According to an embodiment of the present disclosure, the second passive RFID tag further includes an impedance matching circuit; the tag chip and the tag antenna of the second passive RFID tag are connected to the impedance matching circuit and the component to be activated to form a closed circuit of the second passive RFID tag;

[0023] When the designated second passive RFID tag is in an inactive state, the closed circuit of the designated second passive RFID tag is in an open state or a high impedance state;

[0024] When the designated second passive RFID tag is in an activated state, the closed circuit of the designated second passive RFID tag is in a conducting state.

[0025] According to an embodiment of the present disclosure, the second passive RFID tag stores location information of a corresponding predetermined location;

[0026] or

[0027] The RFID reading system pre-stores location information of a predetermined location corresponding to the second passive RFID tag.

[0028] In a second aspect, a method for quickly establishing a correspondence between RFID tags is provided in an embodiment of the present disclosure, and is applied to an RFID reading system, wherein the RFID reading system includes an RFID antenna, and the method includes:

[0029] Sending a radio frequency signal to a designated first passive RFID tag close to a designated second passive RFID tag through the RFID antenna and acquiring corresponding first identification information, and saving the first identification information, wherein the designated first passive RFID tag belongs to a first passive RFID tag group, the first passive RFID tag group includes a plurality of first passive RFID tags in a non-working state, the first passive RFID tag group is located outside the coverage of the RFID antenna, the designated second passive RFID tag belongs to a second passive RFID tag group, the second passive RFID tag group includes a plurality of second passive RFID tags respectively arranged at a plurality of predetermined positions, the second passive RFID tag group is within the coverage of the RFID antenna and is in an inactive state;

[0030] Sending a radio frequency signal to a designated second passive RFID tag activated by the designated first passive RFID tag through the RFID antenna and acquiring corresponding second identification information, and saving the second identification information;

[0031] The position information of the predetermined position corresponding to the designated second passive RFID tag is acquired, and a corresponding relationship between the designated first passive RFID tag and the designated second passive RFID tag is established according to the first identification information and the second identification information.

[0032] According to an embodiment of the present disclosure, the first passive RFID tag includes an activation component, and the second passive RFID tag includes a component to be activated.

[0033] According to an embodiment of the present disclosure, the activation component is an optical signal sending component, and the component to be activated is an optical signal receiving component;

[0034] or

[0035] The activation component is a plug component, and the component to be activated is an interface component matching the plug component.

[0036] In a third aspect, an embodiment of the present disclosure provides an item management system, including: an RFID reading system, a first passive RFID tag group, and a second passive RFID tag group;

[0037] The RFID reading system includes an RFID antenna; the first passive RFID tag group is located outside the coverage of the RFID antenna, the first passive RFID tag group includes a plurality of first passive RFID tags in a non-working state, and the plurality of first passive RFID tags are respectively set on a plurality of objects; the second passive RFID tag group includes a plurality of second passive RFID tags respectively set at a plurality of predetermined positions, and the second passive RFID tags are within the coverage of the RFID antenna and are in an inactive state;

[0038] When a designated first passive RFID tag in the first passive RFID tag group approaches a designated second passive RFID tag in the second passive RFID tag group, the RFID reading system sends a radio frequency signal to the designated first passive RFID tag through the RFID antenna, so that the designated first passive RFID tag is converted from a non-working state to a working state;

[0039] The RFID reading system acquires the first identification information of the specified first passive RFID tag and saves the first identification information;

[0040] The designated first passive RFID tag activates the designated second passive RFID tag, so that the designated second passive RFID tag is converted from an inactive state to an active state;

[0041] The RFID reading system acquires the second identification information of the designated second passive RFID tag and saves the second identification information;

[0042] The RFID reading system obtains the position information of the predetermined position corresponding to the designated second passive RFID tag, and establishes a corresponding relationship between the designated first passive RFID tag and the designated second passive RFID tag based on the first identification information and the second identification information; based on the corresponding relationship between the designated first passive RFID tag and the designated second passive RFID tag, manages the items equipped with the designated first passive RFID tag.

[0043] According to an embodiment of the present disclosure, the managing of the items provided with the designated first passive RFID tag based on the correspondence between the designated first passive RFID tag and the designated second passive RFID tag includes:

[0044] Based on the correspondence between the designated first passive RFID tag and the designated second passive RFID tag, the correspondence between the position information of the object provided with the designated first passive RFID tag and the predetermined position corresponding to the designated second passive RFID tag is obtained, so as to use the corresponding position information as the position information of the object provided with the designated first passive RFID tag.

[0045] According to an embodiment of the present disclosure, the article is any one of the following:

[0046] File boxes, data cables, folders.

[0047] According to an embodiment of the present disclosure, the first passive RFID tag includes an activation component, and the second passive RFID tag includes a component to be activated.

[0048] According to an embodiment of the present disclosure, the activation component is an optical signal sending component, and the component to be activated is an optical signal receiving component;

[0049] or

[0050] The activation component is a plug component, and the component to be activated is an interface component matching the plug component.

[0051] In a fourth aspect, an embodiment of the present disclosure provides an RFID reading system, including: a reader / writer, an RFID antenna, and a back-end data processing system;

[0052] The reader is used to send a radio frequency signal to a designated first passive RFID tag close to a designated second passive RFID tag through the RFID antenna and obtain corresponding first identification information, and save the first identification information, wherein the designated first passive RFID tag belongs to a first passive RFID tag group, the first passive RFID tag group includes a plurality of first passive RFID tags in a non-working state, the first passive RFID tag group is located outside the coverage of the RFID antenna, the designated second passive RFID tag belongs to a second passive RFID tag group, the second passive RFID tag group includes a plurality of second passive RFID tags respectively arranged at a plurality of predetermined positions, and the second passive RFID tag group is within the coverage of the RFID antenna and is in an inactive state;

[0053] The reader / writer is further used to send a radio frequency signal to the designated second passive RFID tag activated by the designated first passive RFID tag through the RFID antenna and obtain the corresponding second identification information, and save the second identification information;

[0054] The back-end data processing system is used to save the first identification information and the second identification information, and obtain the position information of the predetermined position corresponding to the specified second passive RFID tag, and establish the corresponding relationship between the specified first passive RFID tag and the specified second passive RFID tag according to the first identification information and the second identification information.

[0055] In a fifth aspect, an embodiment of the present disclosure provides a computer-readable storage medium on which computer instructions are stored. When the computer instructions are executed by a processor, the method described in any one of the second aspects is implemented.

[0056] In a sixth aspect, a computer program product is provided in an embodiment of the present disclosure, comprising computer instructions, which, when executed by a processor, implement the method as described in any one of the second aspects.

[0057] According to the technical solution provided by the embodiment of the present disclosure, when a designated first passive RFID tag in the first passive RFID tag group is close to a designated second passive RFID tag in the second passive RFID tag group, the designated first passive RFID tag is within the coverage range of the RFID antenna of the RFID reading system, thereby converting from a non-working state to a working state; at this time, the designated first passive RFID tag in the working state is used to activate the designated second passive RFID tag, so that the designated second passive RFID tag is converted from a non-activated state to an activated state; the RFID reading system obtains the first and second identification information corresponding to the designated first and designated second passive RFID tags, as well as the position information of the preset position corresponding to the designated second passive RFID tag, and establishes a corresponding relationship between the designated first passive RFID tag and the designated second passive RFID tag.

[0058] The present invention can utilize a passive RFID tag that is initially in a non-working state to activate another passive RFID tag that is in a known position but in an inactive state, thereby quickly establishing a correspondence between the two passive tags, thereby achieving in a multi-tag (known position) deployment environment that only one passive tag with a known position is activated at the same time, thereby quickly and accurately locating another passive tag with an unknown position based on the established correspondence. For example, when the other passive tag with an unknown position is applied to an object (e.g., a file), the position of the object can be quickly located without the need to set up a large number of separate antennas, thereby greatly reducing hardware cost and complexity.

[0059] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Other features, objectives and advantages of the present disclosure will become more apparent through the following detailed description of non-limiting embodiments in conjunction with the accompanying drawings. In the accompanying drawings:

[0061] Figure 1 A schematic diagram showing an intelligent filing cabinet system in the prior art is shown;

[0062] Figure 2 A flow chart showing a method for quickly establishing a correspondence between passive RFID tags according to an embodiment of the present disclosure;

[0063] Figure 3 A circuit connection diagram of a first passive RFID tag in an embodiment of the present disclosure is shown;

[0064] Figure 4 A circuit connection diagram of a second passive RFID tag in an embodiment of the present disclosure is shown;

[0065] Figure 5 A circuit connection diagram of another first passive RFID tag in an embodiment of the present disclosure is shown;

[0066] Figure 6 A circuit connection diagram of another second passive RFID tag in an embodiment of the present disclosure is shown;

[0067] Figure 7 A flowchart showing another method for quickly establishing a correspondence relationship between passive RFID tags according to an embodiment of the present disclosure;

[0068] Figure 8 A schematic diagram showing the structure of an item management system according to an embodiment of the present disclosure is shown;

[0069] Fig. 9 A schematic diagram showing the structure of an RFID reading system according to an embodiment of the present disclosure is shown;

[0070] Fig.10 A schematic diagram showing the structure of a computer system suitable for implementing another method for quickly establishing a correspondence between passive RFID tags according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0071] Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement them. In addition, for the sake of clarity, parts not related to the description of the exemplary embodiments are omitted in the accompanying drawings.

[0072] In the present disclosure, it should be understood that terms such as "include" or "have" are intended to indicate the presence of features, numbers, steps, behaviors, components, parts, or a combination thereof disclosed in the present specification, and are not intended to exclude the possibility that one or more other features, numbers, steps, behaviors, components, parts, or a combination thereof exist or are added.

[0073] It should also be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other. The present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0074] In the present disclosure, if it involves operations of obtaining user information or user data or displaying user information or user data to others, the operations are all authorized and confirmed by the user, or actively selected by the user.

[0075] As mentioned above, although the use of RFID technology to locate items has been widely used, there are also some problems that cannot be ignored. Take the RFID smart filing cabinet as an example:

[0076] In an RFID smart filing cabinet, the coverage of an RFID antenna can generally cover multiple file boxes, so it can only achieve regional positioning and cannot accurately determine the detailed storage location of each file. This is because the design and working principle of the antenna determine the range of its signal coverage. In an area, when the radio frequency signal emitted by the RFID antenna encounters multiple file boxes with RFID tags, these RFID tags will respond and return their information at the same time. However, due to the attenuation and interference of the signal when it propagates in space, as well as the possible mutual interference (such as collision) between different RFID tags, it is difficult for the reading system / computer system to accurately distinguish the exact location of each RFID tag. In a densely stored environment, the accuracy of the signal reading will be further reduced, making it impossible to determine the specific location of each file.

[0077] After research, the inventor found that if the location of each file is to be determined, an independent antenna needs to be added at the location of each file to achieve this, but this will also greatly increase the hardware cost and complexity; and there are serious defects in simply adding independent antennas to achieve the positioning of each of the above-mentioned files. The coverage range of the independent antenna that needs to be added must be controllable and cannot read adjacent file labels. As the thickness of the file decreases, the difficulty of antenna design increases significantly and becomes impossible to achieve, and it is impossible to achieve that one antenna can only read one file label.

[0078] In order to solve the above problems, the present disclosure provides a method for quickly establishing a corresponding relationship between passive RFID tags, comprising: when a designated first passive RFID tag in a first passive RFID tag group is close to a designated second passive RFID tag in a second passive RFID tag group, the designated first passive RFID tag is within the coverage range of an RFID antenna of an RFID reading system, so that the designated first passive RFID tag is converted from a non-working state to a working state, wherein the first passive RFID tag group includes a plurality of first passive RFID tags in a non-working state, the first passive RFID tag group is outside the coverage range of the RFID antenna, the second passive RFID tag group includes a plurality of second passive RFID tags respectively arranged at a plurality of predetermined positions, and ... first passive RFID tags in a non-working state. The FID tag group is within the coverage range of the RFID antenna and is in an inactive state; the RFID reading system obtains the first identification information of the designated first passive RFID tag and saves the first identification information; the designated first passive RFID tag activates the designated second passive RFID tag, so that the designated second passive RFID tag is converted from an inactive state to an active state; the RFID reading system obtains the second identification information of the designated second passive RFID tag and saves the second identification information; the RFID reading system obtains the position information of a predetermined position corresponding to the designated second passive RFID tag, and establishes a corresponding relationship between the designated first passive RFID tag and the designated second passive RFID tag based on the first identification information and the second identification information.

[0079] The present invention can quickly establish a correspondence between the two passive tags in a multi-tag deployment environment, ensuring that only one passive tag with a known position is activated at the same time, so as to quickly and accurately locate another passive tag with an unknown position according to the established correspondence. For example, when the other passive tag with an unknown position is applied to an object (for example, an archive), the position of the object can be quickly located without the need to set up a large number of separate antennas, thereby greatly reducing hardware cost and complexity.

[0080] Figure 2 A flow chart showing a method for quickly establishing a correspondence between passive RFID tags according to an embodiment of the present disclosure is shown. Figure 2 As shown, the method includes the following steps S201 to S205:

[0081] In step S201, when a designated first passive RFID tag in the first passive RFID tag group is close to a designated second passive RFID tag in the second passive RFID tag group, the designated first passive RFID tag is within the coverage range of the RFID antenna of the RFID reading system, thereby causing the designated first passive RFID tag to be converted from a non-working state to a working state.

[0082] According to an embodiment of the present disclosure, the RFID reading system includes an RFID antenna.

[0083] According to an embodiment of the present disclosure, the first passive RFID tag group is located outside the coverage of the RFID antenna and includes a plurality of first passive RFID tags in a non-working state. The designated first passive RFID tag is any passive RFID tag in the first passive RFID tag group.

[0084] According to an embodiment of the present disclosure, the second passive RFID tag group includes a plurality of second passive RFID tags respectively arranged at a plurality of predetermined positions, the second passive RFID tag group is within the coverage of the RFID antenna and is in an inactive state. The designated second passive RFID tag is any passive RFID tag in the second passive RFID tag group.

[0085] Specifically, each first passive RFID tag is a passive tag that can work normally, but because it is outside the coverage of the RFID antenna, it cannot be identified by the RFID reading system. Only when the designated first passive RFID tag is close to the designated second passive RFID tag, because the designated second passive RFID tag is within the coverage of the RFID antenna, the designated first passive RFID tag is also correspondingly within the coverage of the RFID antenna, thereby being able to obtain the energy (i.e., radio frequency signal) provided by the RFID reading system through the RFID antenna and converting from a non-working state to a working state.

[0086] Figure 3 FIG. 2 is a schematic diagram showing a circuit connection of a first passive RFID tag in an embodiment of the present disclosure. Figure 3 As shown, the first passive RFID tag includes an activation component, and the activation component is connected to the tag chip and the tag antenna of the first passive RFID tag to form a closed circuit of the first passive RFID tag.

[0087] According to an embodiment of the present disclosure, when the designated first passive RFID tag is converted from a non-operating state to an operating state, the activation component of the designated first passive RFID tag operates.

[0088] In detail, when the designated first passive RFID tag enters the reading range of the RFID reading system, the RFID reading system emits radio frequency electromagnetic waves through the RFID antenna. After the tag antenna of the designated first passive RFID tag receives these electromagnetic waves, an alternating voltage or current is generated through electromagnetic induction. After the alternating voltage or current is rectified, a stable power supply can be provided for the designated first passive RFID tag. When sufficient energy is received, the closed circuit of the designated first passive RFID tag is turned on, and the tag chip and activation component start working.

[0089] In step S202, the RFID reading system obtains first identification information of the designated first passive RFID tag and saves the first identification information. The first identification information may be a tag ID of the designated first passive RFID tag.

[0090] In the step S203, the designated first passive RFID tag activates the designated second passive RFID tag, so that the designated second passive RFID tag is converted from an inactive state to an active state.

[0091] Specifically, each second passive RFID tag has a known predetermined position and is initially in an inactive state, that is, although the second passive RFID tag is within the coverage of the RFID antenna, the inactive state still makes the second passive RFID tag unrecognizable by the RFID reading system. Only when activated by the designated first passive RFID tag will the designated second passive RFID tag be converted from the inactive state to the active state, thereby being recognized by the RFID reading system.

[0092] Figure 4 A circuit connection diagram of a second passive RFID tag in an embodiment of the present disclosure is shown.

[0093] like Figure 4 As shown, the second passive RFID tag includes a component to be activated; the designated first passive RFID tag activates the designated second passive RFID tag, including: when the activation component of the designated first passive RFID tag is close to the component to be activated of the designated second passive RFID tag, the designated first passive RFID tag activates the designated second passive RFID tag.

[0094] According to an embodiment of the present disclosure, the second passive RFID tag further includes an impedance matching circuit; the tag chip and tag antenna of the second passive RFID tag are connected to the impedance matching circuit and the component to be activated to form a closed circuit of the second passive RFID tag.

[0095] By setting an impedance matching circuit in the passive tag, the sensitivity of the passive tag to the radio frequency signal emitted by the RFID reading system can be improved, and it can also help optimize the overall performance of the closed circuit. By adjusting the impedance of the closed circuit, power loss can be reduced, signal reflection and interference can be reduced, and problems such as ensuring that the components to be activated can work accurately and stably.

[0096] According to an embodiment of the present disclosure, when the designated second passive RFID tag is in an inactive state, the closed circuit of the designated second passive RFID tag is in an open state or a high-impedance state; when the designated second passive RFID tag is in an activated state, the closed circuit of the designated second passive RFID tag is in a conductive state.

[0097] In detail, when the activation component of the designated first passive RFID tag approaches the component to be activated of the designated second passive RFID tag, the component to be activated is activated by the activation component, thereby making the closed circuit of the designated second passive RFID tag conductive, and the designated second passive RFID tag is converted from an inactive state to an active state. At this time, since the designated second passive RFID tag is already within the reading range of the RFID reading system, the RFID reading system can obtain the radio frequency electromagnetic waves emitted by the RFID antenna through the tag antenna, thereby starting to work.

[0098] In step S204, the RFID reading system obtains the second identification information of the designated second passive RFID tag and saves the second identification information. The second identification information may be the tag ID of the designated second passive RFID tag.

[0099] The activation component and the component to be activated are described below with two specific implementations. Those skilled in the art should understand that the two specific implementations are not technical means to limit the protection scope of the activation component and the component to be activated in the present disclosure.

[0100] In a first embodiment, the activation component of the first passive RFID tag is an optical signal sending component;

[0101] The component to be activated of the second passive RFID tag is an optical signal receiving component, such as Figure 5 and Figure 6 shown.

[0102] At this time, when the optical signal transmitting part of the designated first passive RFID tag approaches the optical signal receiving part of the designated second passive RFID tag, the designated first passive RFID tag activates the designated second passive RFID tag.

[0103] In a second embodiment, the activation component of the first passive RFID tag is a plug component;

[0104] The component to be activated of the second passive RFID tag is an interface component that matches the plug component.

[0105] At this time, when the plug component of the designated first passive RFID tag is inserted into the interface component of the designated second passive RFID tag, the designated first passive RFID tag activates the designated second passive RFID tag.

[0106] In step S205, the RFID reading system obtains the position information of the predetermined position corresponding to the designated second passive RFID tag, and establishes a corresponding relationship between the designated first passive RFID tag and the designated second passive RFID tag according to the first identification information and the second identification information.

[0107] The location information is identification information of the predetermined location, for example, it may be a location code, a location serial number, a location name, etc. of the predetermined location.

[0108] According to an embodiment of the present disclosure, the second passive RFID tag stores location information of a corresponding predetermined location.

[0109] When the passive tag directly stores the location information of the corresponding predetermined location, the RFID reading system can read this information directly from the passive tag without performing additional queries or calculations through the background database, thereby improving the response speed and efficiency of the entire RFID reading system.

[0110] According to an embodiment of the present disclosure, location information of a predetermined location corresponding to the second passive RFID tag is pre-stored in the RFID reading system.

[0111] Specifically, the location information of the predetermined position corresponding to each second passive RFID tag can be stored in advance through the RFID reading system, so that centralized management and control can be achieved in the RFID reading system. The system administrator can easily update, modify or delete the location information through the background database without having to operate each passive tag separately. When the location of the object changes, the location information in the database can be updated in real time, ensuring the accuracy and timeliness of the data.

[0112] The present invention can quickly establish a correspondence between the two passive tags in a multi-tag deployment environment, ensuring that only one passive tag with a known position is activated at the same time. Since the location information of the activated passive tag with a predetermined position can be obtained, the passive tag with an unknown position for activation can be quickly and accurately located according to the established correspondence. For example, when the passive tag with an unknown position is applied to an object (for example, a file), the position of the object can be quickly located without adding multiple independent antennas, which greatly reduces the hardware cost and complexity.

[0113] Figure 7 A flowchart of another method for quickly establishing a corresponding relationship between passive RFID tags according to an embodiment of the present disclosure is shown, wherein the method is applied to an RFID reading system, and the RFID reading system includes an RFID antenna. Figure 7 As shown, the method includes steps S701-S703:

[0114] In step S701, a radio frequency signal is sent to a designated first passive RFID tag close to a designated second passive RFID tag through the RFID antenna and corresponding first identification information is obtained, and the first identification information is saved, wherein the designated first passive RFID tag belongs to a first passive RFID tag group, the first passive RFID tag group includes a plurality of first passive RFID tags in a non-working state, the first passive RFID tag group is located outside the coverage of the RFID antenna, the designated second passive RFID tag belongs to a second passive RFID tag group, the second passive RFID tag group includes a plurality of second passive RFID tags respectively arranged at a plurality of predetermined positions, and the second passive RFID tag group is within the coverage of the RFID antenna and is in an inactive state.

[0115] In the step S702, a radio frequency signal is sent to the designated second passive RFID tag activated by the designated first passive RFID tag through the RFID antenna, and corresponding second identification information is acquired, and the second identification information is saved.

[0116] In the step S703, the position information of the predetermined position corresponding to the designated second passive RFID tag is obtained, and a corresponding relationship between the designated first passive RFID tag and the designated second passive RFID tag is established according to the first identification information and the second identification information.

[0117] According to an embodiment of the present disclosure, the first passive RFID tag includes an activation component, and the second passive RFID tag includes a component to be activated.

[0118] According to an embodiment of the present disclosure, the activating component is an optical signal sending component, and the component to be activated is an optical signal receiving component; or the activating component is a plug component, and the component to be activated is an interface component matching the plug component.

[0119] Figure 8 A schematic structural diagram of an item management system according to an embodiment of the present disclosure is shown.

[0120] like Figure 8 As shown, the system includes: an RFID reading system, a first passive RFID tag group, and a second passive RFID tag group.

[0121] According to an embodiment of the present disclosure, the RFID reading system includes an RFID antenna; the first passive RFID tag group is located outside the coverage of the RFID antenna, the first passive RFID tag group includes a plurality of first passive RFID tags in a non-working state, and the plurality of first passive RFID tags are respectively set on a plurality of objects; the second passive RFID tag group includes a plurality of second passive RFID tags respectively set at a plurality of predetermined positions, the second passive RFID tags are within the coverage of the RFID antenna and are in an inactive state.

[0122] For example, the items may be file boxes, data cables, folders, and the like that require dense storage.

[0123] According to an embodiment of the present disclosure, when a designated first passive RFID tag in the first passive RFID tag group approaches a designated second passive RFID tag in the second passive RFID tag group, the RFID reading system sends a radio frequency signal to the designated first passive RFID tag through the RFID antenna, so that the designated first passive RFID tag is converted from a non-working state to a working state. The RFID reading system obtains the first identification information of the designated first passive RFID tag and saves the first identification information.

[0124] According to an embodiment of the present disclosure, the designated first passive RFID tag activates the designated second passive RFID tag, so that the designated second passive RFID tag is converted from an inactive state to an active state. The RFID reading system obtains the second identification information of the designated second passive RFID tag and saves the second identification information.

[0125] According to an embodiment of the present disclosure, the RFID reading system obtains the position information of the predetermined position corresponding to the designated second passive RFID tag, and establishes a corresponding relationship between the designated first passive RFID tag and the designated second passive RFID tag based on the first identification information and the second identification information; based on the corresponding relationship between the designated first passive RFID tag and the designated second passive RFID tag, the items equipped with the designated first passive RFID tag are managed.

[0126] According to an embodiment of the present disclosure, based on the correspondence between the designated first passive RFID tag and the designated second passive RFID tag, the correspondence between the position information of the object provided with the designated first passive RFID tag and the predetermined position corresponding to the designated second passive RFID tag is obtained, so as to use the corresponding position information as the position information of the object provided with the designated first passive RFID tag.

[0127] According to an embodiment of the present disclosure, a correspondence between a plurality of first passive RFID tags in the first passive RFID tag group and a plurality of second passive RFID tags in the second passive RFID tag group is established, thereby managing the plurality of items.

[0128] The present disclosure can realize a multi-tag environment, especially a multi-tag densely deployed environment, in which only one second passive tag is activated at the same time, so as to quickly establish a corresponding relationship with the first passive tag that activates the second passive tag, thereby conveniently realizing the acquisition of the location information of the item with the first passive tag, so that when the user needs to search and locate the item through the item management system in the future, the location of the item can be quickly located directly through the established corresponding relationship, and the management and precise positioning of multiple items can be realized in a low-cost manner.

[0129] Fig. 9 FIG. 1 is a schematic diagram showing a structure of an RFID reading system according to an embodiment of the present disclosure; Fig. 9 As shown, the RFID reading system includes: a reader / writer, an RFID antenna and a back-end data processing system.

[0130] According to an embodiment of the present disclosure, the reader / writer is used to send a radio frequency signal to a designated first passive RFID tag close to a designated second passive RFID tag through the RFID antenna and obtain corresponding first identification information, and save the first identification information, wherein the designated first passive RFID tag belongs to a first passive RFID tag group, the first passive RFID tag group includes a plurality of first passive RFID tags in a non-working state, the first passive RFID tag group is located outside the coverage of the RFID antenna, the designated second passive RFID tag belongs to a second passive RFID tag group, the second passive RFID tag group includes a plurality of second passive RFID tags respectively arranged at a plurality of predetermined positions, and the second passive RFID tag group is within the coverage of the RFID antenna and is in an inactive state.

[0131] According to an embodiment of the present disclosure, the reader / writer is further used to send a radio frequency signal to a designated second passive RFID tag activated by the designated first passive RFID tag through the RFID antenna and obtain corresponding second identification information, and save the second identification information.

[0132] According to an embodiment of the present disclosure, the back-end data processing system is used to save the first identification information and the second identification information, and obtain the position information of the predetermined position corresponding to the specified second passive RFID tag, and establish the corresponding relationship between the specified first passive RFID tag and the specified second passive RFID tag based on the first identification information and the second identification information.

[0133] The back-end data processing system may be arranged on a local computer, a cloud computing platform, a server cluster, and the like.

[0134] Fig.10 A schematic diagram showing the structure of a computer system suitable for implementing another method for quickly establishing a correspondence between passive RFID tags according to an embodiment of the present disclosure.

[0135] like Fig.10 As shown, the computer system includes a processing unit, which can perform the various methods in the above-mentioned embodiments according to the program stored in the read-only memory (ROM) or the program loaded from the storage part into the random access memory (RAM). In the RAM, various programs and data required for the operation of the computer system are also stored. The processing unit, ROM and RAM are connected to each other through a bus. The input / output (I / O) interface is also connected to the bus.

[0136] The following components are connected to the I / O interface: an input part including a keyboard, a mouse, etc.; an output part including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker; a storage part including a hard disk, etc.; and a communication part including a network interface card such as a LAN card, a modem, etc. The communication part performs a communication process via a network such as the Internet. The drive is also connected to the I / O interface as needed. Removable media, such as disks, optical disks, magneto-optical disks, semiconductor memories, etc., are installed on the drive as needed so that the computer program read therefrom is installed into the storage part as needed. Among them, the processing unit can be implemented as a processing unit such as a CPU, a GPU, a TPU, an FPGA, an NPU, etc.

[0137] In particular, according to an embodiment of the present disclosure, the method described above can be implemented as a computer software program. For example, an embodiment of the present disclosure includes a computer program product, which includes a computer program tangibly contained on a machine-readable medium, and the computer program includes a program code for executing the above method. In such an embodiment, the computer program can be downloaded and installed from a network through a communication part, and / or installed from a removable medium.

[0138] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architecture, functions and operations of the systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of a code, and the module, a program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of boxes in the block diagram and / or flowchart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0139] The units or modules involved in the embodiments described in the present disclosure may be implemented by software or programmable hardware. The units or modules described may also be set in a processor, and the names of these units or modules do not constitute limitations on the units or modules themselves in some cases.

[0140] As another aspect, the present disclosure further provides a computer-readable storage medium, which may be a computer-readable storage medium included in the electronic device or computer system in the above embodiment; or a computer-readable storage medium that exists independently and is not assembled into a device. The computer-readable storage medium stores one or more programs, and the programs are used by one or more processors to execute the method described in the present disclosure.

[0141] The above description is only a preferred embodiment of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present disclosure is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with the technical features with similar functions disclosed in the present disclosure (but not limited to) by each other.

Claims

1. A method for quickly establishing a corresponding relationship between passive RFID tags, characterized in that: include: When a designated first passive RFID tag in the first passive RFID tag group approaches a designated second passive RFID tag in the second passive RFID tag group, the designated first passive RFID tag is within the coverage of the RFID antenna of the RFID reading system, so that the designated first passive RFID tag is converted from a non-working state to a working state, wherein the first passive RFID tag group includes a plurality of first passive RFID tags in a non-working state, the first passive RFID tag group is outside the coverage of the RFID antenna, the second passive RFID tag group includes a plurality of second passive RFID tags respectively arranged at a plurality of predetermined positions, the second passive RFID tag group is within the coverage of the RFID antenna and is in an inactive state; The RFID reading system acquires the first identification information of the specified first passive RFID tag and saves the first identification information; The designated first passive RFID tag activates the designated second passive RFID tag, so that the designated second passive RFID tag is converted from an inactive state to an active state; The RFID reading system acquires the second identification information of the designated second passive RFID tag and saves the second identification information; The RFID reading system obtains the position information of the predetermined position corresponding to the designated second passive RFID tag, and establishes a corresponding relationship between the designated first passive RFID tag and the designated second passive RFID tag according to the first identification information and the second identification information.

2. The method according to claim 1, characterized in that: The first passive RFID tag includes an activation component; When the designated first passive RFID tag is converted from a non-operating state to an operating state, the activation component of the designated first passive RFID tag operates.

3. The method according to claim 2, characterized in that: The second passive RFID tag includes a component to be activated; The designated first passive RFID tag activates the designated second passive RFID tag, comprising: when an activation component of the designated first passive RFID tag approaches a component to be activated of the designated second passive RFID tag, the designated first passive RFID tag activates the designated second passive RFID tag.

4. The method according to claim 3, characterized in that: The activation component of the first passive RFID tag is an optical signal sending component; The component to be activated of the second passive RFID tag is an optical signal receiving component.

5. The method according to claim 4, characterized in that The step of activating the designated second passive RFID tag by the designated first passive RFID tag when the activation component of the designated first passive RFID tag approaches the component to be activated of the designated second passive RFID tag includes: activating the designated second passive RFID tag by the designated first passive RFID tag when the optical signal sending component of the designated first passive RFID tag approaches the optical signal receiving component of the designated second passive RFID tag.

6. The method according to claim 3, characterized in that: The activation component of the first passive RFID tag is a plug component; The component to be activated of the second passive RFID tag is an interface component that matches the plug component.

7. The method according to claim 6, characterized in that The designated first passive RFID tag activates the designated second passive RFID tag when the activation component of the designated first passive RFID tag is close to the component to be activated of the designated second passive RFID tag, including: when the plug component of the designated first passive RFID tag is inserted into the interface component of the designated second passive RFID tag, the designated first passive RFID tag activates the designated second passive RFID tag.

8. The method according to claim 3, characterized in that The second passive RFID tag further includes an impedance matching circuit; the tag chip and the tag antenna of the second passive RFID tag are connected to the impedance matching circuit and the component to be activated to form a closed circuit of the second passive RFID tag; When the designated second passive RFID tag is in an inactive state, the closed circuit of the designated second passive RFID tag is in an open state or a high impedance state; When the designated second passive RFID tag is in an activated state, the closed circuit of the designated second passive RFID tag is in a conducting state.

9. The method according to claim 1, characterized in that: The second passive RFID tag stores location information of the corresponding predetermined location; or The RFID reading system pre-stores location information of a predetermined location corresponding to the second passive RFID tag.

10. A method for quickly establishing a corresponding relationship between RFID tags, characterized in that: Applied to an RFID reading system, the RFID reading system includes an RFID antenna, and the method includes: Sending a radio frequency signal to a designated first passive RFID tag close to a designated second passive RFID tag through the RFID antenna and acquiring corresponding first identification information, and saving the first identification information, wherein the designated first passive RFID tag belongs to a first passive RFID tag group, the first passive RFID tag group includes a plurality of first passive RFID tags in a non-working state, the first passive RFID tag group is located outside the coverage of the RFID antenna, the designated second passive RFID tag belongs to a second passive RFID tag group, the second passive RFID tag group includes a plurality of second passive RFID tags respectively arranged at a plurality of predetermined positions, the second passive RFID tag group is within the coverage of the RFID antenna and is in an inactive state; Sending a radio frequency signal to a designated second passive RFID tag activated by the designated first passive RFID tag through the RFID antenna and acquiring corresponding second identification information, and saving the second identification information; The position information of the predetermined position corresponding to the designated second passive RFID tag is acquired, and a corresponding relationship between the designated first passive RFID tag and the designated second passive RFID tag is established according to the first identification information and the second identification information.

11. The method according to claim 10, characterized in that The first passive RFID tag includes an activation component, and the second passive RFID tag includes a component to be activated.

12. The method according to claim 11, characterized in that: The activation component is an optical signal sending component, and the component to be activated is an optical signal receiving component; or The activation component is a plug component, and the component to be activated is an interface component matching the plug component.

13. An item management system, characterized in that: include: RFID reading system, a first passive RFID tag group, and a second passive RFID tag group; The RFID reading system includes an RFID antenna; the first passive RFID tag group is located outside the coverage of the RFID antenna, the first passive RFID tag group includes a plurality of first passive RFID tags in a non-working state, and the plurality of first passive RFID tags are respectively set on a plurality of objects; the second passive RFID tag group includes a plurality of second passive RFID tags respectively set at a plurality of predetermined positions, and the second passive RFID tags are within the coverage of the RFID antenna and are in an inactive state; When a designated first passive RFID tag in the first passive RFID tag group approaches a designated second passive RFID tag in the second passive RFID tag group, the RFID reading system sends a radio frequency signal to the designated first passive RFID tag through the RFID antenna, so that the designated first passive RFID tag is converted from a non-working state to a working state; The RFID reading system acquires the first identification information of the specified first passive RFID tag and saves the first identification information; The designated first passive RFID tag activates the designated second passive RFID tag, so that the designated second passive RFID tag is converted from an inactive state to an active state; The RFID reading system acquires the second identification information of the designated second passive RFID tag and saves the second identification information; The RFID reading system obtains the position information of the predetermined position corresponding to the specified second passive RFID tag, and establishes the corresponding relationship between the specified first passive RFID tag and the specified second passive RFID tag according to the first identification information and the second identification information; Based on the correspondence between the designated first passive RFID tag and the designated second passive RFID tag, the article provided with the designated first passive RFID tag is managed.

14. The system according to claim 13, characterized in that The managing of the article provided with the designated first passive RFID tag based on the correspondence between the designated first passive RFID tag and the designated second passive RFID tag includes: Based on the correspondence between the designated first passive RFID tag and the designated second passive RFID tag, the correspondence between the position information of the object provided with the designated first passive RFID tag and the predetermined position corresponding to the designated second passive RFID tag is obtained, so as to use the corresponding position information as the position information of the object provided with the designated first passive RFID tag.

15. The system according to claim 13, characterized in that The item is any of the following: File boxes, data cables, folders.

16. The system according to claim 13, characterized in that The first passive RFID tag includes an activation component, and the second passive RFID tag includes a component to be activated.

17. The system according to claim 16, characterized in that The activation component is an optical signal sending component, and the component to be activated is an optical signal receiving component; or The activation component is a plug component, and the component to be activated is an interface component matching the plug component.

18. An RFID reading system, characterized in that: include: Readers, RFID antennas and back-end data processing systems; The reader is used to send a radio frequency signal to a designated first passive RFID tag close to a designated second passive RFID tag through the RFID antenna and obtain corresponding first identification information, and save the first identification information, wherein the designated first passive RFID tag belongs to a first passive RFID tag group, the first passive RFID tag group includes a plurality of first passive RFID tags in a non-working state, the first passive RFID tag group is located outside the coverage of the RFID antenna, the designated second passive RFID tag belongs to a second passive RFID tag group, the second passive RFID tag group includes a plurality of second passive RFID tags respectively arranged at a plurality of predetermined positions, and the second passive RFID tag group is within the coverage of the RFID antenna and is in an inactive state; The reader / writer is further used to send a radio frequency signal to the designated second passive RFID tag activated by the designated first passive RFID tag through the RFID antenna and obtain the corresponding second identification information, and save the second identification information; The back-end data processing system is used to save the first identification information and the second identification information, and obtain the position information of the predetermined position corresponding to the specified second passive RFID tag, and establish the corresponding relationship between the specified first passive RFID tag and the specified second passive RFID tag according to the first identification information and the second identification information.

19. A computer-readable storage medium having computer instructions stored thereon, characterized in that: When the computer instructions are executed by a processor, the method described in any one of claims 10 to 12 is implemented.

20. A computer program product, comprising computer instructions, which implement the method according to any one of claims 10 to 12 when executed by a processor.

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