Radio frequency identification chart compact shelf

Abstract

A radio frequency identification chart compact shelf belongs to the technical field of military drawing management. According to the technical scheme, a cabinet body is provided with a plurality of rows and columns of sea chart chambers, and a storage unit shelf is arranged below each sea chart chamber; the host is connected with the extensions; the storage box is connected with the storage unit shelf; a PCB (Printed Circuit Board) antenna which is transversely arranged and is used for identifying a chart is arranged in the storage box; and each extension set is connected with the PCB antenna of the corresponding column sea chart room. The beneficial effects of the utility model are that compared with the prior art, the radio frequency identification chart compact shelf can identify all charts in each layer by using only one antenna, so that the cost is saved, and the structure is simplified; the antenna does not protrude out of the surface of the shelf and does not influence the flatness or scratch of a chart; a PCB antenna form is adopted instead of a three-dimensional oscillator form generally adopted in the prior art, so that the thickness of the antenna is very small, and a drawing storage space below cannot be influenced; the storage space is increased, the electronic tags can be overlapped, and the number of the electronic tags can reach 100.

Description

Technical Field

[0001] The utility model relates to information technology, wireless communication, radio frequency identification, document data management and other technologies, belongs to the technical field of military drawing management, and particularly relates to a radio frequency identification chart compact rack. Background Art

[0002] Radio Frequency Identification (RFID) is a key technology in the Internet of Things (IoT). It is currently widely used in warehousing, logistics, transportation, healthcare, and other fields, and is experiencing rapid growth. However, RFID is highly susceptible to the specific circumstances of the application scenario and the surrounding environment, making its application more challenging than technologies like Wi-Fi and Bluetooth. In practice, specific configuration and optimization are required. Currently, there is no universal RFID product that can be applied in all scenarios.

[0003] In the field of document management, products utilizing radio frequency identification (RFID) technology already exist, primarily for managing books and archives. Several patents have been granted in this area, such as Weihai Beiyang's patent for RFID compact shelving. These products can identify books and archives by installing identifiers and antennas within the shelving and attaching RFID tags to the books and archives. However, these products are limited in that each book or archive must be of a certain thickness. If this thickness is insufficient, the density of the tags will be too high, resulting in incomplete recognition and significantly reduced recognition speed.

[0004] In the prior art, when identifying books or documents, two or more antennas are typically used per layer, otherwise the identification is incomplete. Furthermore, the height of each layer of a chart storage rack is usually low, and if two antennas are used, a large amount of paper storage space would be occupied, causing inconvenience in use.

[0005] The existing technology usually adopts a three-dimensional oscillator form, and the antenna thickness is more than 15 mm, which is costly and easily takes up the storage space of the drawings. Utility Model Content

[0006] In order to solve the problems existing in the above-mentioned prior art, the utility model provides a radio frequency identification chart compact rack, which uses only one antenna on each layer to realize the identification of all charts in the layer, which saves costs and simplifies the structure, and relatively speaking, increases the storage space of the charts.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A radio frequency identification chart compact rack, comprising:

[0009] a cabinet body having a plurality of rows and columns of chart rooms, each of the chart rooms being provided with a storage unit shelf below;

[0010] The host is connected to several extensions;

[0011] a storage box connected to the storage unit shelf;

[0012] The storage box is equipped with a PCB antenna that is arranged horizontally and is used to identify nautical charts;

[0013] Each of the extensions is respectively connected to the PCB antenna of the chart room in which it is located.

[0014] Furthermore, a main chassis and several sub-chasses are provided on the top of the cabinet, the main machine is built into the main chassis, and the sub-chasses are respectively built into the sub-chasses.

[0015] Furthermore, the sub-chassis includes a first sub-chassis, a second sub-chassis, a third sub-chassis, and a fourth sub-chassis, and the top of the cabinet is provided with through holes A corresponding to the first sub-chassis, the second sub-chassis, the third sub-chassis, and the fourth sub-chassis.

[0016] Furthermore, a through hole B is provided on the storage unit shelf, and the storage box is connected to the storage unit shelf through the through hole B.

[0017] Furthermore, the plurality of extensions are connected to each other via first connection lines.

[0018] Furthermore, each of the extensions is connected to the PCB antenna of the chart room in its column via a third connecting line, and the third connecting line passes through the through hole A; a reserved space is provided between the PCB antenna and the upper edge and bottom of the storage box.

[0019] Furthermore, a fixing point is provided on one side of the cabinet, and a second connection line connected to the host is led out of the cabinet through the fixing point; the second connection line includes a power line and a network cable.

[0020] Furthermore, the first connecting line includes a power line and a network cable.

[0021] Furthermore, the third connecting line includes a radio frequency feed line and an LED wire.

[0022] Furthermore, the chart room is open or drawer-type.

[0023] Beneficial effects of the utility model:

[0024] Compared with the prior art, the radio frequency identification chart compact rack described in the present invention has the following beneficial effects:

[0025] 1. Only one antenna is needed per layer to recognize all the charts in that layer, which saves costs and simplifies the structure.

[0026] 2. The antenna does not protrude from the shelf surface, which will not affect the flatness of the chart or scratch it;

[0027] 3. The PCB antenna is used instead of the stereo oscillator commonly used in existing technologies, so the antenna thickness is very small and does not affect the storage space of the drawings below;

[0028] 4. Increased storage space, electronic tags can overlap, the number can reach 100. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive labor. Among them:

[0030] Figure 1 This is a schematic diagram of the wiring on the top of the cabinet of the utility model;

[0031] Figure 2 This is a schematic diagram of the internal wiring of a single row of the cabinet of the utility model;

[0032] Figure 3 This is a schematic diagram of the connection between the storage unit shelf and the storage box of the utility model;

[0033] Figure 4 This is a schematic diagram of the overall appearance of the storage box of the utility model;

[0034] Figure 5 This is a schematic cross-sectional view of the storage box of the utility model;

[0035] Explanation of the accompanying numbers: 1-cabinet, 2-main chassis, 3-first sub-chassis, 4-second sub-chassis, 5-third sub-chassis, 6-fourth sub-chassis, 7-first connecting line, 8-second connecting line, 9-third connecting line, 10-fixing point, 11-through hole A, 12-chart room, 13-storage unit shelf, 14-through hole B, 15-storage box, 16-PCB antenna. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the present invention. Figure 1-5Further explanation of the radio frequency identification chart compact rack.

[0037] A radio frequency identification chart compact rack, comprising:

[0038] The cabinet 1 is provided with a plurality of rows and columns of chart compartments 12, each of which is provided with a storage unit shelf 13 below. The width of the chart compartments 12 is uniform and complies with the navy's chart specifications. Each chart is affixed with an electronic label.

[0039] The host is connected to several extensions;

[0040] a storage box 15 connected to the storage unit shelf 13;

[0041] The storage box 15 has a built-in horizontally arranged PCB antenna 16 for identifying nautical charts; the PCB antenna 16 is a double-layer board and may be provided with or without a directional coupler. The PCB antenna 16 is an ultra-high frequency antenna with a standing wave ratio of less than or equal to 1.5 in the range of 920MHz-925MHz.

[0042] The distance between the PCB antenna 16 and the upper edge of the storage box 15 is greater than or equal to 3 mm, and the distance between the PCB antenna 16 and the bottom of the storage box 15 is greater than or equal to 3 mm.

[0043] Each of the extensions is connected to the PCB antenna 16 of the chart room 12 in the column. Figure 2 As shown, RF feeder cables extend from the extension unit, or identifier, and are routed vertically to connect each floor. For a 20-layer high-density shelving system, for example, 20 RF feeder cables and LED leads extend from the extension unit chassis and run vertically in straight lines to the same location on the side of each drawer. All cables are placed in column-shaped slots, and SMA connectors are secured to the guide rail fixing holes at the same angle on each floor using cable ties. Cable ties are installed horizontally between the guide rail fixing holes on both sides of each floor.

[0044] PCB antenna 16 is installed in each layer to realize the conversion between wired signal and wireless signal; PCB antenna 16 is PCB circular polarization ultra-high frequency far field antenna with a gain index of 3dBi-5dBi. The antenna installation method of each layer is as follows Figure 3 As shown in the figure, a gap of 3mm or more must be left between the PCB antenna 16 and the first chart above it, otherwise recognition will be affected. Using only one antenna per layer allows recognition of all charts within that layer, saving costs and streamlining the structure. This high density is achieved in two ways: the chart room is only 8cm high, and 100 charts are stacked continuously.

[0045] The cabinet 1 is provided with a main chassis 2 and several sub-chassis on the top. The main chassis is built into the main chassis 2, and the sub-chassis are built into the sub-chassis. The sub-chassis include a first sub-chassis 3, a second sub-chassis 4, a third sub-chassis 5, and a fourth sub-chassis 6. The cabinet 1 is provided with through holes A11 corresponding to the first sub-chassis 3, the second sub-chassis 4, the third sub-chassis 5, and the fourth sub-chassis 6, respectively. Figure 1 As shown, the four A11s at the top are located directly above the gaps on the sides of the drawer.

[0046] The storage unit shelf 13 is provided with a through hole B14, and the storage box 15 is connected to the storage unit shelf 13 through the through hole B14. Figure 3 As shown, a square hole with a side length of 170 mm is opened at the lower right side of the storage unit shelf 13, and a uncovered metal square box is used as the shell of the storage box 15, and the RFID antenna, that is, the PCB antenna 16 is fixed therein; the height of the uncovered metal square box is 18 mm, and it is connected and fixed to the bottom of the shelf through four frames. The height of the uncovered metal square box is less than the height of the curling of the shelf, so as not to affect the net height of the front opening of the storage unit. The surface of the shelf 13 maintains the original height, so as not to affect the net height of the front opening of the storage unit.

[0047] The first connecting line 7 is connected to the four extensions respectively. Each extension is connected to the PCB antenna 16 of the chart room 12 in the column via a third connecting line 9, and the third connecting line 9 passes through the through hole A11.

[0048] A fixing point 10 is provided on one side of the cabinet 1, through which a second connecting cable 8 connected to the host computer is led out of the cabinet 1. The second connecting cable 8 includes a power cable and a network cable, and the second connecting cable 8 has a sufficient length to allow for movement of the cabinet. The first connecting cable 7 includes a power cable and a network cable. The third connecting cable 9 includes an RF feeder cable and LED leads.

[0049] Optionally, the chart room 12 is of open type or drawer type.

[0050] This application is an RFID device specifically used for nautical chart identification scenarios. Its functions and performance are specially designed for this scenario and have reached a high level.

[0051] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A radio frequency identification chart compact rack, characterized in that: include: A cabinet (1) is provided with a plurality of rows and columns of chart rooms (12), and a storage unit shelf (13) is provided below each of the chart rooms (12); The host is connected to several extensions; a storage box (15) connected to the storage unit shelf (13); The storage box (15) is internally provided with a PCB antenna (16) which is arranged horizontally and is used for identifying nautical charts; Each of the extensions is respectively connected to the PCB antenna (16) of the chart room (12) in the column where it is located; A main chassis (2) and a plurality of sub-chasses are provided on the top of the cabinet (1); the main chassis is built into the main chassis (2), and the sub-chasses are respectively built into the sub-chasses; The sub-chassis includes a first sub-chassis (3), a second sub-chassis (4), a third sub-chassis (5), and a fourth sub-chassis (6); and through holes A (11) corresponding to the first sub-chassis (3), the second sub-chassis (4), the third sub-chassis (5), and the fourth sub-chassis (6) are respectively provided above the cabinet (1); The storage unit shelf (13) is provided with a through hole B (14), and the storage box (15) is connected to the storage unit shelf (13) through the through hole B (14); The host is connected to the plurality of extensions respectively via first connection lines (7); Each of the extensions is connected to the PCB antenna (16) of the chart room (12) in the corresponding column via a third connecting line (9), wherein the third connecting line (9) passes through the through hole A (11); a reserved space is provided between the PCB antenna (16) and the upper edge and the bottom of the storage box (15); A fixing point (10) is provided on one side of the cabinet (1), and a second connecting line (8) connected to the host is led out of the cabinet (1) through the fixing point (10); the second connecting line (8) includes a power line and a network cable.

2. The radio frequency identification chart compact rack according to claim 1, characterized in that: The first connecting line (7) includes a power line and a network line.

3. The radio frequency identification chart compact rack according to claim 1, characterized in that: The third connecting line (9) includes a radio frequency feeder line and an LED conductor.

4. The radio frequency identification chart compact rack according to any one of claims 1 to 3, characterized in that: The chart room (12) is open or drawer-type.

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