Intelligent bookshelf based on laminate type radio frequency antenna and use method of intelligent bookshelf

Abstract

The invention relates to the technical field of manufacturing of radio frequency equipment for book management, in particular to an intelligent bookshelf based on a laminate type radio frequency antenna and a using method of the intelligent bookshelf, and the intelligent bookshelf is compact in structure, convenient to detach and replace and low in missed reading rate. The radio frequency tag component comprises a microprocessor, an antenna coil and an indicating lamp, the laminate type radio frequency antenna is provided with a flat shell which is made of a non-metallic material and is provided with a cavity, a radio frequency reader-writer and a radio frequency antenna coil are arranged in the flat shell, the radio frequency reader-writer is connected with the radio frequency antenna coil, and the indicating lamp is connected with the microprocessor. The circuit board used for arranging the radio frequency reader-writer and the circuit board used for arranging the radio frequency antenna coil are located on the same horizontal plane, the radio frequency antenna is wound into a horizontally-placed rectangular frame type, a broadening part is arranged on one side edge of the radio frequency antenna coil wound into the rectangular frame type, the radio frequency antenna coil is arranged on the PCB, and the PCB is arranged on the radio frequency reader-writer. And the widening part is realized by adopting a copper-clad layer.

Description

Technical field:

[0001] The invention relates to the technical field of radio frequency equipment manufacturing for book management, and in particular to an intelligent bookshelf based on a layered radio frequency antenna with compact structure, easy disassembly and replacement, and low missed reading rate, and a method for using the same. Background technology:

[0002] In order to improve the management efficiency of archives or books and shorten the inventory and search time, smart bookcases or smart racks based on radio frequency technology have been applied. The key component of such products is the plate-type antenna set on the bookcase layer or the shelf layer. The existing plate-type antenna device has a high thickness, especially when applied to metal cabinets or metal racks. In order to improve the anti-interference ability of the antenna, the high thickness of the plate-type antenna is used to reduce the interference of the metal cabinet or rack. This leads to a significant reduction in the height space for document storage when the existing plate-type antenna is arranged on the cabinet or rack. In order to solve this problem, the partitions of the cabinet or rack need to be modified: that is, the partitions of the rack are grooved or cut off, and then the plate-type antenna product is placed on the corresponding partition. The rack or cabinet has a multi-partition structure. This construction method has a long construction period and a large degree of damage to the integrity of the original cabinet. In addition, when the existing plate-type antenna products are applied to metal cabinets or racks, the radio frequency tags close to the outermost metal cabinet still have the problem of missed reading.

[0003] The existing layered plate type RF antenna mainly includes a RF reader / writer, a RF antenna coil and related power supply components. In order to adapt to books or archives with RF tags attached to the inner pages or cover pages, more than two partially overlapping rectangular frame RF antennas are often used. Through the round-robin operation of multiple RF antennas, the reading and writing of labels on all books or archives placed on the upper side of the layered plate antenna are completed. Obviously, such labels attached to the cover pages or inner pages of books or the cover of archive boxes are hidden in the cabinet during storage, and the current location of the label cannot be shown in real time when being searched. In order to improve the efficiency of searching archives or books, researchers have proposed using indicator lights and other display components to mark the location area corresponding to the RF tag currently being searched and read in real time. The implementation method of the existing technology is to pre-partition each inter-layer area of ​​the shelf or cabinet, and set a corresponding indicator light component in each partition. When books or documents are put on the shelf, the RF tag corresponding to the book or document is bound to the pre-partition, so as to realize the real-time lighting of the indicator light component corresponding to the currently read RF tag in the subsequent search process. This inventory method increases the workload of the shelving process for books or documents, and because the space partitions of the bookshelves or bookcase shelves are fixed, the partition size cannot adapt to the placement of documents or books of different thicknesses, and cannot accurately indicate a specific book. Summary of the invention:

[0004] In view of the shortcomings and deficiencies in the prior art, the present invention proposes an intelligent bookshelf based on a layered radio frequency antenna, which has a compact structure, is easy to disassemble and replace, and has a low missed reading rate, and a method for using the same.

[0005] The present invention is achieved by the following measures:

[0006] A smart bookshelf based on a layered plate type radio frequency antenna is provided with a frame body, a partition is provided on the frame body, books or documents with radio frequency tag components attached are arranged vertically on the partition, and a layered plate type radio frequency antenna is provided on the partition. The radio frequency tag component is attached to the outside of the book or document, the radio frequency tag component includes a microprocessor, an antenna coil and an indicator light, the microprocessor is connected to the antenna coil and the indicator light respectively, the layered plate type radio frequency antenna is provided with a flat shell with a cavity made of non-metallic material, a radio frequency reader and a radio frequency antenna coil are provided in the flat shell, the radio frequency reader and the radio frequency antenna coil are connected to the radio frequency antenna coil, and the radio frequency reader and the radio frequency antenna coil are used to set the radio frequency reader The circuit board and the circuit board for setting the radio frequency antenna coil are located on the same horizontal plane, the radio frequency antenna is wound into a horizontally placed rectangular frame, and a widening portion is provided on one side of the radio frequency antenna coil wound into a rectangular frame. The radio frequency antenna coil is arranged on the PCB circuit board, and the widening portion is realized by a copper cladding layer. The radio frequency tag component attached to the outside of the book or document is placed close to the widening portion, and the two ends of the widening 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 outside of the two ends of the widening portion to ensure that the current in the antenna coil reaches the outside of the widening portion, thereby avoiding the occurrence of a reading and writing blind spot at both ends of the widening portion.

[0007] The widened portion of the antenna coil of the layered plate type radio frequency antenna described in the present invention is the outer side of the radio frequency antenna coil wound into a rectangular frame.

[0008] The shell of the present invention is made of non-metallic material, the radio frequency reader and the radio frequency antenna coil are arranged on the same PCB circuit board and placed above the boss inside the shell. Furthermore, two bosses parallel to each other are provided on the bottom plate of the shell to prevent the flat shell with a cavity from collapsing after being pressurized; in order to adapt to the metal cabinet or metal partition environment, a metal shielding film is attached to the bottom surface of the outer side of the shell; the inner bottom plate of the shell of the layered plate type radio frequency antenna is provided with a boss arranged along the length direction of the shell, and the boss is formed by bending the bottom plate into the shell.

[0009] The flat shell described in the present invention is also provided with a side plate, and the side plate is made of non-metallic material to isolate the metal cabinet or frame, so as to prevent the radio frequency tags placed at both ends of the layer plate antenna from being affected by the side plates of the metal cabinet or frame and being missed; a buckle that cooperates with the slot on the upper surface of the flat shell is provided at the bottom of the side plate, and a cable slot is also provided at the bottom of the side plate. This is because the cables located in the cavity of the flat shell need to be led out to complete cascading, power supply, signal interaction, etc., so the upper surface of the shell needs to open a cable slot with a size slightly larger than the width of the cable. The side plate is plugged into the shell to clamp the cable and shield excess cables and the cable slot; further, a magnet is provided on the back of the side plate, which is used to attract the metal cabinet to make the side plate close to the cabinet, so as to avoid instability of the side plate after assembly.

[0010] The radio frequency reader / writer of the present invention comprises a controller, a radio frequency reading / writing circuit and an indicator light, wherein the radio frequency reading / writing circuit and the indicator light are respectively connected to the controller, and an indicator light installation slot is provided on the front side of the shell, and the indicator light is used to display the working status of the current layer antenna.

[0011] The present invention also proposes a method for using the smart bookshelf based on the layered plate type RF antenna as described above, which is characterized in that the shell of the layered plate type RF antenna is placed as a whole on the partition of the smart bookshelf, and books or documents with RF tag components attached are arranged upright on the upper surface of the partition layered plate type RF antenna, wherein the RF tag components used to mark books or documents are placed outward and are located above the widened part of the layered plate type RF antenna. After two or more layered plate type RF antennas are connected to an external host computer via cables, device initialization, inventory, and search operations are performed.

[0012] The equipment initialization described in the present invention includes the following steps: the upper computer sends instructions to the RF reader / writer of each layer plate type RF antenna in turn to detect whether the current layer plate type RF antenna is in place. If it is connected normally, the initialization success is displayed by the color of the indicator light on the front side of the current layer plate type RF antenna shell. Otherwise, the indicator light outputs a fault signal to prompt the operator to troubleshoot the fault.

[0013] The inventory check described in the present invention includes the following steps: a host computer issues instructions to a layer plate type radio frequency antenna, a layer plate type radio frequency reader uses the radio frequency antenna to complete the radio frequency tag component on the current partition for marking books or documents, obtains the radio frequency signal returned by the radio frequency tag component, and uploads the received information to the host computer. Furthermore, during the inventory check, an indicator light of the radio frequency tag component used to mark books or documents can be lit to indicate that the radio frequency tag carried by the current book or document has been successfully read.

[0014] The search described in the present invention includes the following steps: the host computer issues instructions to the layer-type radio frequency antenna, the layer-type radio frequency reader uses the radio frequency antenna to output the search instruction, and receives the data returned by the radio frequency tag component, and compares the received data with the target data one by one until the two are consistent, thereby completing the search for the target book or document. At this time, further instructions are issued through the layer-type radio frequency antenna to light up the indicator light of the radio frequency tag component corresponding to the target book or document, so that the user can intuitively understand the storage location of the target document or book.

[0015] Compared with the prior art, the present invention provides a layered plate type RF antenna with a small size and a reasonable structure, and can adapt to the partition requirements of cabinets or racks of different materials. Specifically, since the PCB circuit board where the RF reader is located and the PCB circuit board where the RF antenna coil is located in the layered plate type RF antenna of the present invention are located in the same plane, the thickness of the layered plate type RF antenna is reduced, thereby avoiding the reduction of the partition spacing of the cabinet or rack, and thus being able to adapt to the modification needs of cabinets of various specifications, and the assembly can be completed without removing or partially cutting the cabinet partition. In addition, for cabinets made of metal materials, the low-thickness layered plate type RF antenna can significantly reduce the interference of metal materials on magnetic field signals through the metal shielding film on the bottom of the shell and the unique RF antenna structure in the present application, and can ensure that a stable elliptical magnetic field is formed above the cabinet partition, and solves the problem of blind spots in the reading and writing of tags at both ends.

[0016] Compared with the prior art, the present invention has the remarkable advantages of compact structure, easy disassembly and replacement, low missed reading rate, etc. Description of the drawings:

[0017] Attached Figure 1 It is a structural schematic diagram of the intelligent bookshelf in the present invention.

[0018] Attached Figure 2 is a schematic diagram of the structure of the middle plate type radio frequency antenna of the present invention, wherein Figure 2 Figure a is a schematic diagram of the overall structure of the layered RF antenna. Figure 2 Figure b is a schematic diagram of the end structure of the flat shell. Figure 2 Figure c is a schematic diagram of the structure of the side panels.

[0019] Attached Figure 3 It is a schematic diagram of the coil structure of the middle plate type radio frequency antenna of the present invention.

[0020] Attached Figure 4 It is a schematic diagram of an implementation principle in an embodiment of the present invention.

[0021] Attached Figure 5 It is a schematic diagram of the principle of realizing the coordinated work of multiple racks in cooperation with a library area network in an embodiment of the present invention.

[0022] Figure numerals: frame 1, partition 2, layered RF antenna 3, flat shell 4, widened portion 5, side plate 6, flat shell 7, cable slot 8, magnet 9. Specific implementation method:

[0023] Embodiment 1:

[0024] This example provides an intelligent bookshelf based on a layered plate type radio frequency antenna, which is provided with a frame 1, a partition 2 is provided on the frame 1, books or documents with radio frequency tag components attached are arranged vertically on the partition 2, a layered plate type radio frequency antenna 3 is provided on the partition 2, the radio frequency tag component is attached to the outside of the book or document, the radio frequency tag component includes a microprocessor, an antenna coil and an indicator light, the microprocessor is connected to the antenna coil and the indicator light respectively, the layered plate type radio frequency antenna 3 is provided with a flat shell 4 made of non-metallic material with a cavity, a radio frequency reader and a radio frequency antenna coil are provided in the flat shell 4, the radio frequency reader and the radio frequency antenna coil are connected to the radio frequency antenna coil, and is used to set the radio frequency reader The circuit board and the circuit board for setting the RF antenna coil are located on the same horizontal plane, the RF antenna is wound into a horizontally placed rectangular frame, and a widening portion 5 is provided on one side of the RF antenna coil wound into a rectangular frame. The RF antenna coil is arranged on the PCB circuit board, and the widening portion 5 is realized by a copper cladding layer. The RF tag component attached to the outside of the book or document is placed close to the widening portion 5, and the two ends of the widening portion 5 of the RF antenna coil are connected to the normal coil portion of the RF antenna coil, wherein the normal coil is connected along the outside of the two ends of the widening portion 5 to ensure that the current in the antenna coil reaches the outermost side of the widening portion 5, thereby avoiding the occurrence of a reading and writing blind spot at both ends of the widening portion 5.

[0025] As attached Figure 3 As shown, the 3 antenna coil widening portion 5 of the layer plate type radio frequency antenna is the outer side of the radio frequency antenna coil wound into a rectangular frame;

[0026] In this example, the shell of the layered plate-type RF antenna 3 is made of non-metallic material, the RF reader and the RF antenna coil are arranged on the same PCB circuit board and placed above the boss inside the shell. Furthermore, two bosses parallel to each other are provided on the bottom plate of the shell to prevent the flat shell with a cavity from collapsing under pressure; in order to adapt to the metal cabinet or metal partition environment, a metal shielding film is attached to the bottom surface of the outer side of the shell; a boss arranged along the length direction of the shell is provided on the inner bottom plate of the shell of the layered plate-type RF antenna 3, and the boss is formed by bending the bottom plate into the shell.

[0027] The flat shell 7 is also provided with a side plate 6, and the side plate 6 is made of non-metallic material to isolate the metal cabinet or frame to prevent the RF tags placed at both ends of the layered RF antenna 3 from being affected by the metal cabinet or frame side plate and missed reading; the bottom of the side plate 6 is provided with a buckle that matches the slot on the upper surface of the flat shell 7, and the bottom of the side plate 6 is also provided with a cable slot 8. This is because the cables located in the cavity of the flat shell 7 need to be led out to complete cascading, power supply, signal interaction, etc., so the upper surface of the shell needs to open a cable slot 7 with a size slightly larger than the cable width. The side plate 6 is plugged into the shell to clamp the cable and cover excess cables and cable slots; further, the back of the side plate 6 is provided with a magnet 9, which is used to attract the metal cabinet to make the side plate close to the cabinet to avoid instability of the side plate after assembly.

[0028] The radio frequency reader / writer comprises a controller, a radio frequency reading / writing circuit and an indicator light, wherein the radio frequency reading / writing circuit and the indicator light are respectively connected to the controller, and an indicator light installation slot is provided on the front side of the housing, and the indicator light is used to display the working status of the current layer antenna;

[0029] The method for using the smart bookshelf based on the layer plate type radio frequency antenna described in this example includes: placing the shell of the layer plate type radio frequency antenna as a whole on the partition of the smart bookshelf, arranging books or documents with radio frequency tag components attached vertically on the upper surface of the partition layer plate type radio frequency antenna, wherein the radio frequency tag components used to mark books or documents are placed outward and located above the widened part of the layer plate type radio frequency antenna, and after two or more layer plate type radio frequency antennas are respectively connected to an external host computer via cables, performing equipment initialization, inventory, and search work;

[0030] The device initialization includes the following steps: the host computer sends instructions to the RF reader of each layer plate type RF antenna in turn to detect whether the current layer plate type RF antenna is in place. If it is normally connected, the initialization is successful through the color of the indicator light on the front side of the current layer plate type RF antenna housing. Otherwise, the indicator light outputs a fault signal to prompt the operator to troubleshoot the fault;

[0031] The inventory check includes the following steps: the host computer issues a command to the layer plate type radio frequency antenna, the layer plate type radio frequency reader uses the radio frequency antenna to complete the radio frequency tag component used to mark books or documents on the current partition, obtains the radio frequency signal returned by the radio frequency tag component, and uploads the received information to the host computer. Furthermore, during the inventory check, the indicator light of the radio frequency tag component used to mark books or documents can be lit to indicate that the radio frequency tag carried by the current book or document is successfully read;

[0032] The search includes the following steps: the host computer issues instructions to the layer-type radio frequency antenna, the layer-type radio frequency reader uses the radio frequency antenna to output the search instruction, and receives the data returned by the radio frequency tag component, and compares the received data with the target data one by one until the two are consistent, thereby completing the search of the target book or document. At this time, the layer-type radio frequency antenna further issues instructions to light up the indicator light of the radio frequency tag component corresponding to the target book or document, so that the user can intuitively understand the storage location of the target document or book.

[0033] As attached Figure 4 As shown, when this example is applied to the management of books or documents in a library or archive, a host computer can be set up in the library to realize signal interaction with multiple layer-type RF antennas on multiple racks through a communication controller;

[0034] By further building on the attached Figure 5 In the library network shown, an electronic tag positioning front-end is set up to manage the communication controller in the area, and communicate with the library management system and the communication controller through the TCP / IP protocol. The electronic tag positioning data collected by the communication controller is obtained and uploaded to the library management system;

[0035] The communication controller is responsible for managing the connection to the shelf reader / writer, communicating with the shelf reader / writer through the CAN protocol, controlling the operation of the shelf reader / writer, and collecting the data reported by the reader / writer. The data is uploaded to the electronic tag positioning front-end server through the TCP / IP protocol. Each communication controller can manage 50 shelf readers and 4-15 bookshelves;

[0036] The reader is responsible for collecting information about books on each shelf and uploading it to the communication controller. The shelf reader works according to the command of the communication controller. The shelf reader consists of two parts: the reader and the antenna array. The reader transmits radio frequency signals, controls the antenna array to work in time-sharing, parses the tag return data, and uploads the data to the host computer. The shelf readers are connected by CAN communication and bus hand-in-hand. The male power signal line and the female power signal line are designed at both ends of the reader for power supply and communication.

[0037] Compared with the prior art, the present invention provides a layered plate type RF antenna with a small size and a reasonable structure, and can adapt to the partition requirements of cabinets or racks of different materials. Specifically, since the PCB circuit board where the RF reader is located and the PCB circuit board where the RF antenna coil is located in the layered plate type RF antenna of the present invention are located in the same plane, the thickness of the layered plate type RF antenna is reduced, thereby avoiding the reduction of the partition spacing of the cabinet or rack, and thus being able to adapt to the modification needs of cabinets of various specifications, and the assembly can be completed without removing or partially cutting the cabinet partition. In addition, for cabinets made of metal materials, the low-thickness layered plate type RF antenna can significantly reduce the interference of metal materials on magnetic field signals through the metal shielding film on the bottom of the shell and the unique RF antenna structure in the present application, and can ensure that a stable elliptical magnetic field is formed above the cabinet partition, and solves the problem of blind spots in the reading and writing of tags at both ends.

[0038] Compared with the prior art, the present invention has the remarkable advantages of compact structure, easy disassembly and replacement, low missed reading rate, etc.

Claims

1. A smart bookshelf based on a layered radio frequency antenna, comprising a frame, a partition board on which books or documents with radio frequency tag components attached are arranged vertically, and a layered radio frequency antenna is arranged on the partition board, characterized in that: The radio frequency tag component is attached to the outside of a book or document. The radio frequency tag component includes a microprocessor, an antenna coil and an indicator light. The microprocessor is connected to the antenna coil and the indicator light respectively. The layer plate type radio frequency antenna is provided with a flat shell with a cavity made of non-metallic material. A radio frequency reader and a radio frequency antenna coil are arranged in the flat shell. The radio frequency reader and the radio frequency antenna coil are connected. A circuit board for setting the radio frequency reader and a circuit board for setting the radio frequency antenna coil are located on the same horizontal plane. The radio frequency antenna is wound into a horizontally placed rectangular frame. A widening portion is provided on one side of the radio frequency antenna coil wound into a rectangular frame. The radio frequency antenna coil is arranged on a PCB circuit board. The widening portion is realized by a copper cladding layer. The radio frequency tag component attached to the outside of the book or document is placed close to the widening portion. The two ends of the widening portion of the radio frequency antenna coil are connected to the normal coil portion of the radio frequency antenna coil. The normal coil is connected along the outside of the two ends of the widening portion to ensure that the current in the antenna coil reaches the outside of the widening portion, thereby avoiding the occurrence of a reading and writing blind area at the two ends of the widening portion.

2. The intelligent bookshelf based on the layered radio frequency antenna according to claim 1, characterized in that: The widened portion of the antenna coil of the layered plate type radio frequency antenna is the outer side of the radio frequency antenna coil wound into a rectangular frame.

3. The smart bookshelf based on the layered radio frequency antenna according to claim 1, characterized in that: The shell is made of non-metallic material, and the radio frequency reader and the radio frequency antenna coil are arranged on the same PCB circuit board and are placed above the boss in the shell.

4. The intelligent bookshelf based on the layered radio frequency antenna according to claim 1, characterized in that: Two bosses parallel to each other are provided on the bottom plate of the shell to prevent the flat shell with a cavity from collapsing under pressure; in order to adapt to the metal cabinet or metal partition environment, a metal shielding film is attached to the outer bottom surface of the shell; the inner bottom plate of the shell of the layered plate type RF antenna is provided with a boss arranged along the length direction of the shell, and the boss is formed by bending the bottom plate into the shell.

5. The intelligent bookshelf based on the layered radio frequency antenna according to claim 1, characterized in that: The flat shell is also provided with a side plate, which is made of non-metallic material to isolate the metal cabinet or frame to prevent the radio frequency tags placed at both ends of the layer plate antenna from being affected by the side plates of the metal cabinet or frame and being missed; the bottom of the side plate is provided with a buckle that matches the slot on the upper surface of the flat shell, and the bottom of the side plate is also provided with a cable slot. This is because the cables located in the cavity of the flat shell need to be led out to complete cascading, power supply, signal interaction, etc., so the upper surface of the shell needs to open a cable slot with a size slightly larger than the width of the cable. The side plate is plugged into the shell to clamp the cable and cover excess cables and cable slots; the back of the side plate is provided with a magnet for attracting the metal cabinet to make the side plate close to the cabinet to avoid instability of the side plate after assembly.

6. The intelligent bookshelf based on the layered radio frequency antenna according to claim 1, characterized in that: The radio frequency reader / writer includes a controller, a radio frequency reading / writing circuit and an indicator light. The radio frequency reading / writing circuit and the indicator light are respectively connected to the controller. An indicator light installation slot is provided on the front side of the shell. The indicator light is used to display the working status of the current layer antenna.

7. A method for using the smart bookshelf based on the layered radio frequency antenna according to any one of claims 1 to 6, characterized in that: Place the shell of the layer-type RF antenna as a whole on the partition of the smart bookshelf, and arrange books or documents with RF tag components attached vertically on the upper surface of the partition layer-type RF antenna, wherein the RF tag components used to mark books or documents are placed outward and located above the widened part of the layer-type RF antenna. After two or more layer-type RF antennas are connected to the external host computer via cables, perform equipment initialization, inventory, and search operations.

8. The method for using the smart bookshelf based on the layered radio frequency antenna according to claim 7, characterized in that: The device initialization includes the following steps: the host computer sends instructions to the RF reader of each layer plate type RF antenna in turn to detect whether the current layer plate type RF antenna is in place. If it is normally connected, the initialization success is displayed by the color of the indicator light on the front side of the current layer plate type RF antenna shell. Otherwise, the indicator light outputs a fault signal to prompt the operator to troubleshoot the fault.

9. The method for using the smart bookshelf based on the layered radio frequency antenna according to claim 7, characterized in that: The inventory includes the following steps: the host computer issues instructions to the layer plate type radio frequency antenna, the layer plate type radio frequency reader uses the radio frequency antenna to complete the radio frequency tag component on the current partition for marking books or documents, obtains the radio frequency signal returned by the radio frequency tag component, and uploads the received information to the host computer. Furthermore, during the inventory process, the indicator light of the radio frequency tag component used to mark books or documents can be lit to indicate that the radio frequency tag carried by the current book or document has been successfully read.

10. The method for using the smart bookshelf based on the layered radio frequency antenna according to claim 7, characterized in that: The search includes the following steps: the host computer issues instructions to the layer-type radio frequency antenna, the layer-type radio frequency reader uses the radio frequency antenna to output the search instruction, and receives the data returned by the radio frequency tag component, and compares the received data with the target data one by one until the two are consistent, thereby completing the search of the target book or document. At this time, the layer-type radio frequency antenna further issues instructions to light up the indicator light of the radio frequency tag component corresponding to the target book or document, so that the user can intuitively understand the storage location of the target document or book.

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