CN118153602B - RFID-based tag identification device - Google Patents
RFID-based tag identification device Download PDFInfo
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- CN118153602B CN118153602B CN202410248694.4A CN202410248694A CN118153602B CN 118153602 B CN118153602 B CN 118153602B CN 202410248694 A CN202410248694 A CN 202410248694A CN 118153602 B CN118153602 B CN 118153602B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
- G06K7/10356—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers using a plurality of antennas, e.g. configurations including means to resolve interference between the plurality of antennas
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisions for transferring data to distant stations, e.g. from a sensing device
- G06K17/0029—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisions for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10297—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves arrangements for handling protocols designed for non-contact record carriers such as RFIDs NFCs, e.g. ISO/IEC 14443 and 18092
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- General Health & Medical Sciences (AREA)
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Abstract
The invention provides a label identification device based on RFID, comprising: the wireless radio frequency transmitting device is used for transmitting a first radio frequency signal and a second radio frequency signal, wherein the frequency of the first radio frequency signal is different from the frequency of the second radio frequency signal; the wireless radio frequency receiving device comprises N first receiving units and M second receiving units, wherein the first receiving units are used for receiving first feedback signals, and the second receiving units are used for receiving second feedback signals; the first radio frequency signal is used for scanning the target tag and then feeding back a first feedback signal, and the second radio frequency signal is used for scanning the target tag and then feeding back a second feedback signal; and each signal receiving part is correspondingly provided with a signal correction unit, and the signal correction unit is used for collecting feedback signals of the area near the wireless radio frequency receiving equipment to obtain missing signals and conveying the missing signals to the first receiving unit and/or the second receiving unit. Therefore, the target label can still be accurately identified when the external environment changes.
Description
Technical Field
The invention relates to the technical field of RFID (Radio Frequency Identification ), in particular to a tag identification device based on RFID.
Background
The RFID technology is a technology for wireless or non-contact transmission by using electromagnetic waves, and can realize digital ID and other data transmission between an RFID tag and a reader-writer. By tagging items with unique digital IDs, RFID technology enables businesses, organizations, and consumers to seamlessly identify, authenticate, track, and detect each item, and correlate with each other. The data exchange of RFID systems relies on antennas to transmit and receive radio frequency signals.
In the related art, a tag identification device generally adopts a fixed signal transmission frequency to identify a target tag, however, due to the change of an external environment, a mode of adopting a unique fixed signal transmission frequency to identify the target tag wirelessly achieves a good working effect, and the accuracy of tag identification is low.
Disclosure of Invention
The invention aims to solve the technical problems, and provides a tag identification device based on RFID, which can provide radio frequency signals with various frequencies to identify a tag, so that the target tag can still be accurately identified when the external environment changes.
The technical scheme adopted by the invention is as follows:
an RFID-based tag identification apparatus, comprising: the wireless radio frequency transmission device is used for transmitting a first radio frequency signal and a second radio frequency signal, wherein the frequency of the first radio frequency signal is different from the frequency of the second radio frequency signal; the wireless radio frequency receiving device comprises N first receiving units and M second receiving units, wherein the first receiving units and the second receiving units are arranged in a penetrating mode, the first receiving units are used for receiving first feedback signals, and the second receiving units are used for receiving second feedback signals; the first feedback signal is fed back after the first radio frequency signal scans the target tag, and the second feedback signal is fed back after the second radio frequency signal scans the target tag; the first collecting units at the edges of the wireless radio frequency collecting device and the corresponding peripheral second collecting units are signal collecting parts, each signal collecting part is provided with a signal correcting unit, a first signal output port of each signal correcting unit is connected with the first collecting unit of the corresponding signal collecting part, a second signal output port of each signal correcting unit is connected with the corresponding second collecting unit of the corresponding signal collecting part, and the signal correcting units are used for collecting feedback signals in the area nearby the wireless radio frequency collecting device so as to obtain missing signals and convey the missing signals to the first collecting unit and/or the second collecting unit.
In one embodiment of the present invention, the radio frequency transmitting apparatus includes a plurality of first radio frequency transmitting devices and a plurality of second radio frequency transmitting devices, where the first radio frequency transmitting devices transmit the first radio frequency signal and the second radio frequency transmitting devices transmit the second radio frequency signal, and the first radio frequency transmitting devices and the second radio frequency transmitting devices are arranged alternately.
In one embodiment of the present invention, the signal input ports of the two signal correction units located at the same orientation of the edge of the wireless radio frequency receiving device are bonded to each other.
In one embodiment of the present invention, the outer edges of the plurality of signal correction units located in the same orientation of the edge of the wireless radio frequency receiving device form a circular arc frame, wherein each of the signal correction units surrounds the wireless radio frequency receiving device within the circular arc frame.
In one embodiment of the present invention, each of the first radio frequency transmitting devices and the corresponding first receiving unit form a first antenna transceiver unit, each of the second radio frequency transmitting devices and the corresponding second receiving unit form a second antenna transceiver unit, wherein each of the first antenna transceiver unit and the second antenna transceiver unit is connected to a single chip microcomputer through a total transmission line, and the single chip microcomputer sends control signals to each of the first antenna transceiver unit or the second antenna transceiver unit separately and receives tag identification signals of each of the first antenna transceiver unit or the second antenna transceiver unit separately.
In one embodiment of the present invention, at least one row or column of the first antenna transceiver unit and/or the second antenna transceiver unit is connected to the single chip microcomputer through one of the total transmission lines, where the first antenna transceiver unit and/or the second antenna transceiver unit, which are commonly connected to one of the total transmission lines, are connected in a bus system manner.
In one embodiment of the present invention, the single chip microcomputer is specifically configured to send a control instruction to a target antenna transceiver unit, and determine whether an accident exists in the target antenna transceiver unit according to a response signal output by the target antenna transceiver unit.
The invention has the beneficial effects that:
The invention can provide radio frequency signals with various frequencies to identify the tag, so that the target tag can still be accurately identified when the external environment changes.
Drawings
FIG. 1 is a schematic diagram of a RFID-based tag identification apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an RFID-based tag identification apparatus according to an embodiment of the present invention;
Fig. 3 is a schematic structural view of an RFID-based tag recognition device according to another embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Fig. 1 is a schematic structural view of an RFID-based tag recognition apparatus according to an embodiment of the present invention.
As shown in fig. 1, the RFID-based tag recognition apparatus of the embodiment of the present invention may include a wireless radio frequency transmitting device 100 and a wireless radio frequency receiving device 200.
It should be noted that, the radio frequency transmitting apparatus 100 may be a signal transmitting antenna, and the radio frequency receiving apparatus 200 may be a signal receiving antenna.
The wireless radio frequency transmitting device 100 is configured to transmit a first radio frequency signal and a second radio frequency signal, where the frequency of the first radio frequency signal is different from the frequency of the second radio frequency signal.
In one embodiment of the present invention, the radio frequency transmission apparatus 100 may include a plurality of first radio frequency transmission devices 110 and a plurality of second radio frequency transmission devices 120, the first radio frequency transmission devices 110 and the second radio frequency transmission devices 120 being alternately arranged, the first radio frequency transmission devices 120 transmitting the first radio frequency signal, the second radio frequency transmission devices 120 transmitting the second radio frequency signal.
As shown in fig. 1, as a possible embodiment, the first radio frequency transmitting device 110 and the second radio frequency transmitting device 120 may be alternately arranged by:
The first row is sequentially a first radio frequency transmitting device 110 and a second radio frequency transmitting device 120, the second row is sequentially a second radio frequency transmitting device 120 and a first radio frequency transmitting device 110, and the third row is sequentially a first radio frequency transmitting device 110 and a second radio frequency transmitting device 120, so that the first radio frequency transmitting device 110 and the second radio frequency transmitting device 120 are alternately arranged on each row and each column.
The wireless radio frequency receiving device 200 includes N first receiving units 210 and M second receiving units 220, where the first receiving units 210 and the second receiving units 220 are arranged alternately, the first receiving units 210 are used for receiving the first feedback signals, and the second receiving units 220 are used for receiving the second feedback signals; the first feedback signal is fed back after the first radio frequency signal scans the target tag, and the second feedback signal is fed back after the second radio frequency signal scans the target tag.
Similarly, as shown in fig. 1, as a possible embodiment, the first collecting unit 210 and the second collecting unit 220 may be alternately arranged by:
The first row is sequentially a first collecting unit 210, a second collecting unit 220, and first collecting units 210 and … …, the second row is sequentially a second collecting unit 220, a first collecting unit 210, and second collecting units 220 and … …, and the third row is sequentially a first collecting unit 210, a second collecting unit 220, and first collecting units 210 and … …, so that the first collecting unit 210 and the second collecting unit 220 are alternately arranged on each row and each column.
Therefore, the RFID-based tag identification device can provide two radio frequency signals with different frequencies to identify the target tag, so that the target tag can still be accurately identified when the external environment changes.
In addition, the present invention collects feedback signals of the area near the radio frequency receiving device through the signal correction unit 300 disposed at the edge of the radio frequency receiving device 200 to obtain missing signals (i.e. signals in the area near the radio frequency receiving device but not received by the radio frequency receiving device), and transmits the missing signals to the first receiving unit 210 and/or the second receiving unit 220, so that the radio frequency signals received by the radio frequency receiving device can reach the target frequency.
Specifically, each first collecting unit at the edge of the wireless radio frequency collecting device and corresponding peripheral second collecting units are signal collecting parts, each signal collecting part is correspondingly provided with a signal correcting unit, a first signal output port of each signal correcting unit is connected with the corresponding first collecting unit of the corresponding signal collecting part, a second signal output port of each signal correcting unit is connected with the corresponding second collecting unit of the corresponding signal collecting part, and each signal correcting unit is used for collecting feedback signals of areas nearby the wireless radio frequency collecting device so as to obtain missing signals and conveying the missing signals to the first collecting unit and/or the second collecting unit.
Meanwhile, the signal correction unit 300 has higher flexibility compared with the first receiving unit 210 and the second receiving unit 220, and can greatly improve the accuracy of tag identification by adjusting the form and posture of the signal input port. As a specific embodiment, as shown in fig. 2, the signal input ports of two signal correction units that can be located at the same orientation of the edge of the radio frequency receiving device are bonded to each other. Specifically, the signal input ports of the two signal correction units at the upper right corner position are bonded to each other, the signal input ports of the two signal correction units at the lower right corner position are bonded to each other, the signal input ports of the two signal correction units at the upper left corner position are bonded to each other, and the signal input ports of the two signal correction units at the lower left corner position are bonded to each other, so that the signal input ports can be arranged alternately to the greatest extent, the gap is reduced, and the area for receiving signals is increased.
It will be appreciated that the light spot of the feedback signal will generally take on a circular shape, and that to accommodate the shape of the light spot, the outer edges of a plurality of signal conditioning units located in the same orientation as the edges of the radio frequency receiving device may be formed into a circular arc frame, as shown in fig. 3, wherein each signal conditioning unit surrounds the radio frequency receiving device within the circular arc frame.
Based on the RFID-based tag identification apparatus in the above embodiment, when identifying a target tag, the wireless radio frequency transmitting device 100 may be controlled in advance to transmit the first radio frequency signal and the second radio frequency signal, and then a frequency selection policy for identifying the target tag is determined according to the first feedback signal and the second feedback signal received by the wireless radio frequency receiving device 200, that is, the optimal frequency in the current external environment is selected to select the frequency for identification.
After determining the frequency selection policy, the wireless radio frequency transmitting device 100 is controlled to transmit the first radio frequency signal and/or the second radio frequency signal according to the frequency selection policy, and the signal correcting unit 300 is controlled to transmit the missing signal to the first receiving unit and/or the second receiving unit according to the actual situation.
Therefore, the invention can provide radio frequency signals with various frequencies for tag identification, so that the target tag can still be accurately identified when the external environment changes.
In summary, the RFID-based tag identification apparatus according to the embodiment of the present invention includes a radio frequency transmitting device and a radio frequency receiving device, where the radio frequency transmitting device is configured to transmit a first radio frequency signal and a second radio frequency signal, the frequency of the first radio frequency signal is different from that of the second radio frequency signal, the radio frequency receiving device includes N first receiving units and M second receiving units, the first receiving units and the second receiving units are alternately arranged, the first receiving units are configured to receive a first feedback signal, and the second receiving units are configured to receive a second feedback signal; the system comprises a first radio frequency signal scanning target label, a second radio frequency signal scanning target label, a first feedback signal, a second feedback signal, a signal collecting part, a signal correcting unit, a signal output port and a signal correcting unit, wherein the first feedback signal is fed back after the first radio frequency signal scanning target label, the second feedback signal is fed back after the second radio frequency signal scanning target label, the first collecting units at the edge of the radio frequency collecting device and the corresponding peripheral second collecting units are respectively provided with a signal correcting unit, the first signal output port of the signal correcting unit is connected with the first collecting units of the corresponding signal collecting parts, the second signal output port of the signal correcting unit is connected with the second collecting units of the corresponding signal collecting parts, and the signal correcting unit is used for collecting feedback signals of areas nearby the radio frequency collecting device to obtain missing signals and conveying the missing signals to the first collecting units and/or the second collecting units. Therefore, the tag identification can be performed by providing radio frequency signals with various frequencies, and the target tag can still be accurately identified when the external environment changes.
Further, the present invention can also perform accident detection on the wireless radio frequency transmitting device 100 and the wireless radio frequency receiving device 200 in the RFID-based tag recognition apparatus, and can accurately determine the accident position.
In one embodiment of the present invention, each first radio frequency transmitting device and the corresponding first receiving unit form a first antenna transceiver unit, and each second radio frequency transmitting device and the corresponding second receiving unit form a second antenna transceiver unit. That is, the first radio frequency transmitting device and the corresponding first receiving unit may be integrated, and the second radio frequency transmitting device and the corresponding second receiving unit may be integrated.
Each first antenna transceiver unit and each second antenna transceiver unit are connected with the single chip microcomputer through a total transmission line, and the single chip microcomputer independently transmits control signals to each first antenna transceiver unit or each second antenna transceiver unit and independently receives tag identification signals of each first antenna transceiver unit or each second antenna transceiver unit.
In another embodiment of the present invention, at least one row or column of first antenna transceiver units and/or second antenna transceiver units are connected to the single chip microcomputer through a total transmission line, where the first antenna transceiver units and/or second antenna transceiver units that are commonly connected to the total transmission line are connected by a bus system. Specifically, the first signal receiving/transmitting port of the kth antenna receiving/transmitting unit (the first antenna receiving/transmitting unit or the second antenna receiving/transmitting unit) is connected to the second signal receiving/transmitting port of the kth+1th antenna receiving/transmitting unit, and the second signal receiving/transmitting port of the kth antenna receiving/transmitting unit is connected to the first signal receiving/transmitting port of the kth-1th antenna receiving/transmitting unit.
That is, as a possible implementation manner, each antenna transceiver unit may be separately connected to the single chip microcomputer through the total transmission line in an independent connection manner; as another possible implementation manner, each antenna transceiver unit may also be connected to the single chip microcomputer by adopting a bus system.
In one embodiment of the present invention, the singlechip is specifically configured to send a control instruction to the target antenna transceiver unit, and determine whether an accident exists in the target antenna transceiver unit according to a response signal output by the target antenna transceiver unit. The target antenna receiving and transmitting unit is a first antenna receiving and transmitting unit or a second antenna receiving and transmitting unit.
Specifically, whether a response signal is received within a preset time can be firstly judged, and if the response signal is not received within the preset time, the accident of the target antenna receiving and transmitting unit is judged; if the response signal is received within the preset time, judging whether the response signal is abnormal or not. If the response signal is abnormal, judging that the target antenna receiving and transmitting unit has an accident.
In the description of the present invention, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. The meaning of "a plurality of" is two or more, unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily for the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and further implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
Logic and/or steps represented in the flowcharts or otherwise described herein, e.g., a ordered listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program is printed, as the program may be electronically captured, via, for instance, optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner, if necessary, and then stored in a computer memory.
It is to be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable storage medium, and where the program, when executed, includes one or a combination of the steps of the method embodiments.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product.
The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, or the like. While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (7)
1. An RFID-based tag identification apparatus, comprising:
The wireless radio frequency transmission device is used for transmitting a first radio frequency signal and a second radio frequency signal, wherein the frequency of the first radio frequency signal is different from the frequency of the second radio frequency signal;
The wireless radio frequency receiving device comprises N first receiving units and M second receiving units, wherein the first receiving units and the second receiving units are arranged in a penetrating mode, the first receiving units are used for receiving first feedback signals, and the second receiving units are used for receiving second feedback signals; the first feedback signal is fed back after the first radio frequency signal scans the target tag, and the second feedback signal is fed back after the second radio frequency signal scans the target tag; wherein,
Each first collecting unit at the edge of the wireless radio frequency collecting device and corresponding peripheral second collecting units are signal collecting parts, each signal collecting part is provided with a signal correcting unit correspondingly, a first signal output port of the signal correcting unit is connected with the first collecting unit of the corresponding signal collecting part, a second signal output port of the signal correcting unit is connected with the second collecting unit of the corresponding signal collecting part, and the signal correcting unit is used for collecting feedback signals of areas nearby the wireless radio frequency collecting device so as to obtain missing signals and convey the missing signals to the first collecting unit and/or the second collecting unit.
2. The RFID-based tag identification device of claim 1, wherein,
The wireless radio frequency transmitting equipment comprises a plurality of first wireless radio frequency transmitting devices and a plurality of second wireless radio frequency transmitting devices, wherein the first wireless radio frequency transmitting devices and the second wireless radio frequency transmitting devices are alternately arranged, the first wireless radio frequency transmitting devices transmit the first radio frequency signals, and the second wireless radio frequency transmitting devices transmit the second radio frequency signals.
3. The RFID-based tag identification device of claim 1, wherein,
And the signal input ports of the two signal correction units are mutually bonded at the same position of the edge of the wireless radio frequency receiving device.
4. The RFID-based tag identification device of claim 1, wherein,
The outer edges of the signal correction units positioned on the same direction of the edge of the wireless radio frequency receiving device form a circular arc-shaped frame, wherein each signal correction unit surrounds the wireless radio frequency receiving device in the circular arc-shaped frame.
5. The RFID-based tag identification apparatus of claim 2, wherein each of the first radio frequency transmitting devices and the corresponding first receiving unit form a first antenna transceiver unit, each of the second radio frequency transmitting devices and the corresponding second receiving unit form a second antenna transceiver unit, wherein each of the first antenna transceiver unit and the second antenna transceiver unit is connected to a single chip microcomputer through a total transmission line, wherein the single chip microcomputer transmits control signals to each of the first antenna transceiver unit or the second antenna transceiver unit individually, and receives tag identification signals of each of the first antenna transceiver unit or the second antenna transceiver unit individually.
6. The RFID-based tag identification device of claim 5, wherein,
At least one row or one column of the first antenna receiving and transmitting units and/or the second antenna receiving and transmitting units are connected with the singlechip through one total transmission line, wherein the first antenna receiving and transmitting units and/or the second antenna receiving and transmitting units which are commonly connected with one total transmission line are connected in a bus system mode.
7. The RFID-based tag identification apparatus of claim 6, wherein the single chip microcomputer is specifically configured to send a control instruction to a target antenna transceiver unit, and determine whether an accident exists in the target antenna transceiver unit according to a response signal output by the target antenna transceiver unit.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117114030A (en) * | 2022-05-12 | 2023-11-24 | 中国移动通信有限公司研究院 | Warehouse-in and warehouse-out identification method, device, identification system and readable storage medium |
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| CN118153602A (en) | 2024-06-07 |
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