Document management device based on anti-misreading radio frequency antenna

Abstract

The utility model relates to the technical field of radio frequency, in particular to a document management device based on an anti-missed-reading radio frequency antenna, which can realize accurate searching of positions of books or documents, is suitable for being arranged in a narrow space, is high in searching accuracy and low in tag missed-reading rate, and is provided with a tag component for binding a product to be managed. The RFID tag is characterized in that a radio frequency tag and an indicator light are arranged in the tag component, the radio frequency read-write assembly comprises a radio frequency reader-writer and a radio frequency antenna, the radio frequency antenna is wound into a horizontally-placed rectangular frame, and the radio frequency reader-writer is connected with the indicator light. One side edge of a radio frequency antenna coil which is wound into a rectangular frame type in the radio frequency read-write assembly is provided with a widening part, the radio frequency antenna coil is arranged on a PCB (Printed Circuit Board), the widening part is realized by adopting a copper-clad layer, and a tag component is placed close to the widening part.

Description

Technical field:

[0001] The utility model relates to the field of radio frequency technology, and specifically is a document management device based on an anti-missing-read radio frequency antenna, which can realize accurate locating of books or documents, is suitable for deployment in narrow spaces, has high locating accuracy, and has a low tag missing-reading rate. Background technology:

[0002] RFID radio frequency technology has been applied to product inventory management. For example, patent document CN217243239U describes a high-efficiency, anti-interference, shelf-type smart bookshelf device. The radio frequency antenna is a shelf-type antenna, including a strip-shaped housing and an antenna mechanism disposed within the housing. The antenna mechanism includes two or more antenna coils disposed on a PCB circuit board, with adjacent antenna coils partially overlapping, and each antenna coil is a double-turn coil. The housing is provided with a power communication interface and an indicator light control interface. The radio frequency reader is a medium-power radio frequency reader, which is connected to the radio frequency antenna via pin and female headers and then placed within the housing. The magnetic field formed by the radio frequency antenna in this solution can cover the width of the shelf, making it suitable for use with vertically placed documents or books with radio frequency tags attached to the inner pages or cover pages.

[0003] Since archive management not only includes the shelving and inventory of archives or books, but also requires the search for the storage location of the corresponding archives or books, and the existing technical solutions rely solely on radio frequency components and cannot indicate the location of archives or books on the shelf or cabinet in real time, in order to solve this problem, it is often necessary to set corresponding indicator lights or sensors on the partitions of the shelf or cabinet, and divide the placement space of documents or books on the partition into corresponding partitions, and enter the partitions into the system in advance. Combined with multiple radio frequency antennas, the archive inventory of different partitions is completed, and the inventory results are compared to give the correspondence between the target archive and the partition storage space, so as to know the specific location of the target archive or book on the shelf or cabinet.

[0004] Obviously, this method has the problem of low space utilization - in order to facilitate accurate search of storage locations, the partition space is divided according to set specifications, and books or documents are different. In order to adapt to the partition settings of the same specifications, it is often necessary to adopt uniform specifications. For example, the files are placed in special file boxes, and then the file content and file box information are bound, which increases the complexity of document management.

[0005] In addition, the antenna coils of existing laminated RF antennas are mostly wound in a rectangular shape, and there is a problem of missing tags, especially when only a single coil structure is used. Summary of the invention:

[0006] In response to the shortcomings and deficiencies in the existing technology, the utility model proposes a document management device based on an anti-missing read radio frequency antenna, which can achieve accurate locating of books or documents, is suitable for deployment in small spaces, has high locating accuracy, and has a low tag missed reading rate.

[0007] The utility model is achieved through the following measures:

[0008] A document management device based on an anti-missing read radio frequency antenna is provided with a label component for binding products to be managed, and a radio frequency reading and writing component for reading and writing the label component. It is characterized in that the label component is provided with a radio frequency tag and an indicator light, and the radio frequency reading and writing component includes a radio frequency reader and a radio frequency antenna, and the radio frequency antenna is wound into a horizontally placed rectangular frame.

[0009] In the radio frequency reading and writing component of the present invention, a widened portion is provided on one side of the radio frequency antenna coil wound in a rectangular frame. The radio frequency antenna coil is arranged on a PCB circuit board. The widened portion is realized by a copper clad layer. The tag component is placed close to the widened portion.

[0010] The two ends of the widened portion of the RF antenna coil of the present invention are connected to the normal coil portion of the RF antenna coil, wherein the normal coil is connected along the outer sides of the two ends of the widened portion to ensure that the current in the antenna coil reaches the outside of the widened portion, thereby avoiding the occurrence of reading and writing blind spots at the two ends of the widened portion. Furthermore, the widened portion is one side of the RF antenna coil wound into a rectangular frame.

[0011] The tag component of the present invention is provided with a microprocessor, a tag antenna and an indicator light. The microprocessor is connected to the tag antenna and the indicator light respectively. When the radio frequency reader / writer component is working, the magnetic field formed by the radio frequency antenna coil in the radio frequency reader / writer component covers the tag component, and the tag antenna cuts the magnetic flux lines. The radio frequency reader / writer component recognizes the tag antenna and further completes the power level of the indicator light in the corresponding tag component by sending a pre-set UID code to the tag component.

[0012] When the present invention is in use, the tag component is adhered to the lower part of the spine of a document or book, as close to the partition as possible, and the radio frequency reading and writing component can accurately and efficiently read the tag component within the magnetic field coverage range through a radio frequency antenna coil wound into a rectangular frame. Compared with the existing technology, since the two ends of the widened part of the radio frequency antenna coil in this solution and the access points of the normal coil are outside the widened part, the end reading blind spot can be overcome, so that the radio frequency antenna coil forms an elliptical magnetic field area that completely covers the two ends of the rectangular antenna coil, which significantly improves the inventory accuracy and efficiency of the tag component and the items bound to the tag component.

[0013] Compared with the prior art, the utility model has the remarkable advantages of reasonable structure, accurate reading and writing, low missed reading rate, and no reading and writing blind area. Description of the drawings:

[0014] Attachment Figure 1 It is a schematic structural diagram of the utility model.

[0015] Attachment Figure 2 It is a structural diagram of the radio frequency antenna in an embodiment of the present utility model.

[0016] Attachment Figure 3 It is a schematic structural diagram of the assembled radio frequency antenna and radio frequency reader in an embodiment of the present invention.

[0017] Reference numerals: tag component 1, RF antenna 2, widened portion 3, normal coil portion 4, PCB circuit board 5, layer antenna housing 6, side vertical plate 7, cable lead-out slot 8. Specific implementation method:

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Example:

[0020] This example is attached Figure 2 、 3 As shown in the figure, a document management device based on an anti-missing read radio frequency antenna is proposed, which is provided with a label component 1 for binding the product to be managed, and a radio frequency reading and writing component for realizing reading and writing the label component 1. The label component 1 is provided with a radio frequency tag and an indicator light. The radio frequency reading and writing component includes a radio frequency reader and a radio frequency antenna 2. The radio frequency antenna 2 is wound into a horizontally placed rectangular frame. The radio frequency reading and writing component is installed in the attached Figure 3 In the illustrated layer antenna housing 6, the RF antenna 2 is arranged on the PCB circuit board 5 and is horizontally mounted in the hollow cavity of the layer antenna housing 6. Side panels 7 are provided at both ends of the layer antenna housing 6, and a cable lead-out groove 8 is provided on the side of the layer antenna housing 6.

[0021] In the RF reader / writer assembly of this example, a widened portion 3 is provided on one side of the RF antenna 2 coil wound in a rectangular frame. The RF antenna 2 coil is arranged on a PCB circuit board 5. The widened portion 3 is implemented by a copper clad layer. The tag component 1 is placed close to the widened portion 3.

[0022] In this example, the two ends of the widened portion of the RF antenna coil 2 are connected to the normal coil portion 4 of the RF antenna coil 2. The normal coil portion 4 is connected along the outer sides of the two ends of the widened portion 3 to ensure that the current in the antenna coil reaches the outside of the widened portion 3, avoiding the occurrence of reading and writing blind spots at both ends of the widened portion 3. The widened portion 3 is one side of the RF antenna coil wound into a rectangular frame.

[0023] The tag component 1 described in this example is equipped with a microprocessor, a tag antenna, and an indicator light. The microprocessor is connected to the tag antenna and the indicator light respectively. When the RF reader / writer is working, the magnetic field formed by the RF antenna coil in the RF reader / writer covers the tag component, and the tag antenna cuts the magnetic flux lines. The RF reader / writer recognizes the tag antenna and further sends a pre-set UID code to the tag component to complete the power level of the indicator light in the corresponding tag component.

[0024] When in use in this example, the tag component is adhered to the lower part of the spine of a document or book, as close to the partition as possible. The radio frequency reading and writing component can accurately and efficiently read the tag component within the magnetic field coverage range through an radio frequency antenna coil wound into a rectangular frame. Compared with the existing technology, since the two ends of the widened part of the radio frequency antenna coil in this solution and the access points of the normal coil are outside the widened part, it can overcome the end reading blind spot, so that the radio frequency antenna coil forms an elliptical magnetic field area that completely covers the two ends of the rectangular antenna coil, significantly improving the inventory accuracy and efficiency of the tag component and the items bound to the tag component.

[0025] Compared with the prior art, the utility model has the remarkable advantages of reasonable structure, accurate reading and writing, low missed reading rate, and no reading and writing blind area.

Claims

1. A document management device based on an anti-missing read radio frequency antenna, provided with a label component for binding a product to be managed, and also provided with a radio frequency reading and writing component for reading and writing the label component, characterized in that: The tag component is provided with a radio frequency tag and an indicator light, and the radio frequency reading and writing component includes a radio frequency reader and a radio frequency antenna, and the radio frequency antenna is wound into a horizontally placed rectangular frame; one side of the radio frequency antenna coil wound into a rectangular frame in the radio frequency reading and writing component is provided with a widened portion, and the radio frequency antenna coil is arranged on a PCB circuit board, and the widened portion is realized by a copper clad layer, and the tag component is placed close to the widened portion; the two ends of the widened portion of the radio frequency antenna coil are connected to the normal coil portion of the radio frequency antenna coil, wherein the normal coil is connected along the outer sides of the two ends of the widened portion.

2. The document management device based on the anti-missing-read radio frequency antenna according to claim 1, characterized in that: The widened portion is a side edge of the radio frequency antenna coil wound into a rectangular frame.

3. The document management device based on the anti-missing-read radio frequency antenna according to claim 1, characterized in that: The tag component is provided with a microprocessor, a tag antenna and an indicator light, and the microprocessor is connected to the tag antenna and the indicator light respectively.

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