Device for testing identification range of RFID (Radio Frequency Identification Device) reader-writer

Abstract

The utility model discloses an RFID reader-writer identification range testing device which comprises an upper computer, a reader-writer fixing seat made of non-metal materials, a horizontal adjusting assembly and a height adjusting assembly, the horizontal adjusting assembly comprises a mounting seat, a moving seat and a horizontal adjusting screw rod, the moving seat is arranged on the mounting seat in a sliding mode, and the height adjusting screw rod is arranged on the moving seat in a sliding mode. The horizontal adjusting screw rod is connected with the moving seat; the height adjusting assembly is arranged on the moving seat and provided with a lifting seat and a label fixing piece made of non-metal materials, and the label fixing piece is located above the reader-writer fixing seat. According to the utility model, the position of the tag fixing plate is adjusted through the horizontal adjusting screw rod and the height adjusting screw rod, so that the adjustment of the relative position of the electronic tag and the RFID reader-writer is realized, the interference of metal can be avoided in the testing process, the maximum reading distance of the RFID reader-writer in the X-axis, Y-axis and Z-axis directions can be accurately measured, and the measurement accuracy is improved. The reliable communication distance in the actual application process is reasonably evaluated, and the situation of collision of the electronic tags is prevented.

Description

Technical Field

[0001] This utility model relates to RFID readers in in vitro diagnostic equipment, and more particularly to an RFID reader identification range testing device. Background Technology

[0002] RFID readers are widely used in logistics and warehousing management, industrial manufacturing, and medical fields. They communicate with RFID tags using the principle of electromagnetic field coupling, enabling the reading and writing of data containing RFID tags. In in-vitro diagnostic medical devices, reagent kits or vials are typically affixed with RFID tags. RFID readers retrieve reagent information by reading these tags. In practical applications, RFID readers need to communicate with only one RFID tag at a time. If at least two RFID tags are present within their reading range simultaneously, collisions can easily occur, leading to errors in reagent information storage. Therefore, the reading range of the RFID reader must usually be determined before installation.

[0003] CN114492481A discloses an RFID reader testing device. This patent tests the maximum distance of RFID tags by placing the tag and the reference tag in the same environment. The purpose is to use RFID tags with the same maximum identifiable distance as the reference tag, which cannot effectively determine the identification range of the RFID reader.

[0004] CN107958170A discloses a passive UHF RFID tag reader protocol performance testing device. This patent is applicable to the distance testing of high-frequency passive RFID electronic tags, but it cannot meet the testing requirements of the reading and writing range of short-range readers in in vitro diagnostic equipment, and it cannot accurately obtain the reading and writing range. Summary of the Invention

[0005] In view of this, this utility model proposes an RFID reader identification range testing device, which has a simple structure and is easy to operate. It can accurately obtain the farthest distance of the RFID reader on the X-axis, Y-axis and Z-axis, providing a basis for the installation of the reader in diagnostic equipment and thus avoiding electronic tag interference.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] The RFID reader identification range testing device of this utility model includes a host computer, a reader fixing base made of non-metallic material, a horizontal adjustment component and a height adjustment component for adjusting the tag position. The horizontal adjustment component includes a mounting base, a movable base and a horizontal adjustment screw. The movable base is slidably disposed on the mounting base, and the horizontal adjustment screw is connected to the movable base.

[0008] The height adjustment component is mounted on the movable base and has a lifting base and a label fixing component made of non-metallic material. One end of the label fixing component is fixed to the lifting base. The label fixing component is located above the reader fixing base, and the RFID reader on the reader fixing base is connected to the host computer.

[0009] The beneficial effects are: the testing device of this utility model has a simpler structure, is easier to operate, and achieves low cost. The position of the tag fixing plate can be adjusted by adjusting the horizontal adjustment screw and the height adjustment screw, thereby adjusting the relative position of the electronic tag and the RFID reader. Moreover, it can avoid metal interference during the test, accurately measure the maximum reading distance of the RFID reader in the X, Y and Z axis directions, reasonably evaluate the reliable communication distance in actual application, and prevent electronic tag collisions from occurring.

[0010] Preferably, the movable seat is an L-shaped structure formed by connecting a horizontal part and a vertical part. The horizontal part is slidably engaged with the movable seat through a horizontal guide component. The height adjustment component has a vertically arranged height adjustment screw. The height adjustment screw is disposed at the upper end of the vertical part through a connector and is connected to the lifting seat in a transmission manner. The lifting seat moves up and down on the vertical part through the height guide component.

[0011] Preferably, the horizontal guide component is a guide rail type guide pair or a guide rod type guide pair. In actual installation, guide rails (slide rails) or guide rods can be used for guidance to ensure the movement trajectory.

[0012] Compared with existing technologies, this utility model has a simple structure, is easy to operate, and achieves low cost. The position of the tag fixing plate can be adjusted by adjusting the horizontal and vertical screws, thereby adjusting the relative position of the electronic tag and the RFID reader. Furthermore, it can avoid interference from metal during testing, accurately measure the maximum reading distance of the RFID reader in the X, Y, and Z axis directions, reasonably evaluate the reliable communication distance in actual applications, and prevent electronic tag collisions. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0014] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings. These embodiments are implemented based on the technical solution of this utility model and provide detailed implementation methods and specific operation processes. However, the protection scope of this utility model is not limited to the following embodiments.

[0015] It should be noted that in the description of this utility model, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0016] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] like Figure 1 As shown, this utility model proposes an RFID reader identification range testing device, including a host computer, a reader mounting base 1 made of non-metallic material (such as plastic), a horizontal adjustment component and a height adjustment component for adjusting the tag position. The RFID reader 2 on the reader mounting base 1 is connected to the host computer (preferably wirelessly, but serial port connection is also possible). The horizontal adjustment component includes a mounting base 3, a movable base 4 and a horizontal adjustment screw 5. The horizontal adjustment screw 5 is connected to the movable base 4 by transmission. By rotating the horizontal adjustment screw 5, the movable base 4 can be driven to move horizontally back and forth on the mounting base 3, thereby realizing the adjustment of the horizontal position of the height adjustment component.

[0018] The height adjustment assembly is mounted on the movable base 4. It has a vertically arranged height adjustment screw 6, a lifting base 8, and a label fixing component (i.e., label fixing plate 7) made of non-metallic material. The height adjustment screw 6 is connected to the lifting base 8. During testing, the height position of the lifting base 8 can be adjusted by rotating the height adjustment screw 6. One end of the label fixing plate 7 is fixed to the lifting base 8, and the label fixing plate 7 is located above the reader fixing base 1.

[0019] This invention features a simple structure and flexible, convenient operation. During testing, the RFID reader 2 is placed on the reader mounting base 1, and the electronic tag 9 is placed on the tag mounting plate 7. The testing range of the RFID reader 2 can be determined by adjusting the horizontal and vertical positions of the tag mounting plate 7, avoiding interference and ensuring high accuracy. In actual installation, both the operating ends of the horizontal adjusting screw 5 and the height adjusting screw 6 are equipped with adjusting knobs 12 for easy turning of each screw. Alternatively, a motor can be used to drive the rotation of each adjusting screw.

[0020] Combination Figure 1It can be seen that the movable seat 4 is an L-shaped structure formed by connecting a horizontal part and a vertical part. The horizontal part is slidably engaged with the movable seat 4 through a horizontal guide component. The horizontal guide component includes a horizontal slide rail 10 fixed on the mounting base 3. The bottom of the horizontal part has a groove that engages with the horizontal slide rail 10, so that the movable seat 4 moves back and forth horizontally along the horizontal slide rail 10. The lifting seat 8 is connected to the vertical part of the movable seat 4 through a height guide component. The height guide component includes a vertical slide rail 11 fixed on the vertical part. The lifting seat 8 has a groove that engages with the vertical slide rail 11, so that the lifting seat 8 moves up and down along the vertical slide rail 11, avoiding twisting during the movement across the floor.

[0021] In actual installation, a connecting block 13 is provided at the upper end of the movable base 4. The height adjusting screw 6 is rotatably mounted on the connecting block 13, and the lifting base 8 is connected to the moving nut on the height adjusting screw 6. When the height adjusting screw 6 is rotated, the moving nut moves up and down along the height adjusting screw 6, thereby adjusting the height of the lifting base 8. Similarly, a fixing block 14 is provided at one end of the mounting base 3. The horizontal adjusting screw 5 is rotatably mounted on the fixing block 14, and the horizontal part of the movable base 4 is fixedly connected to the adjusting nut on the horizontal adjusting screw 5 to achieve a transmission connection.

[0022] The testing device of this utility model has a simpler structure, is easier to operate, and achieves low cost. The position of the tag fixing plate 7 can be adjusted by adjusting the horizontal adjustment screw 5 and the height adjustment screw 6, thereby adjusting the relative position of the electronic tag 9 and the RFID reader 2. Furthermore, it avoids interference from metal during the testing process, can accurately measure the maximum reading distance of the RFID reader 2 in the X, Y, and Z axis directions, reasonably evaluate the reliable communication distance in actual application, and prevent the electronic tag 9 from colliding.

[0023] The working process of this utility model is as follows: Place the RFID reader / writer 2 on the reader / writer mounting base 1 and connect it to the host computer. Place the electronic tag 9 on the tag mounting plate 7, ensuring that the center of the electronic tag 9 corresponds vertically to the center of the antenna coil on the RFID reader / writer 2. Twist the height adjustment screw 6 to position the electronic tag 9 at its highest position. Twist the height adjustment screw 6 to move the lifting base 8 from top to bottom. The electronic tag 9 moves with the tag mounting plate 7 toward the RFID reader / writer 2 until the host computer obtains the read / write data information. At this time, the height difference L1 between the tag mounting plate 7 and the reader / writer mounting base 1 is the farthest distance of the RFID reader / writer 2 in the Z-axis direction. Adjust the position of the electronic tag 9 according to L1 so that the height difference between it and the RFID reader / writer 2 is 0.5L1 (or other values ​​less than L1, such as 0.7L1 or 0.4L1), thereby determining the height of the electronic tag 9.

[0024] Tighten the length adjustment screw to position the electronic tag 9 at the leftmost end (or adjust it to the rightmost end). Tighten the length adjustment screw to move the electronic tag 9 from far to near towards the RFID reader 2 until the host computer can correctly read and write data. At this time, the projection distance L2 between the electronic tag 9 and the RFID reader 2 on the horizontal plane is the farthest distance of the RFID reader 2 in the X-axis direction.

[0025] Similarly, after rotating the RFID reader 2 90 degrees, place it on the reader mounting base 1, ensuring that the center of the electronic tag 9 corresponds vertically to the center of the antenna coil on the RFID reader 2, and that the height difference between the electronic tag 9 and the RFID reader 2 is 0.5L1 (or other values ​​less than L1, such as 0.7L1 or 0.4L1). Then, use the length adjustment screw to position the electronic tag 9 at the leftmost end (or adjust it to the rightmost end), and then turn the length adjustment screw to move the electronic tag 9 from far to near towards the RFID reader 2 until the host computer can correctly read and write data. At this time, the projection distance L3 between the electronic tag 9 and the RFID reader 2 on the horizontal plane is the farthest distance of the RFID reader 2 in the Y-axis direction.

[0026] In practical applications, for the identification of a single RFID tag 9, no other RFID tag 9 can be stored within the space enclosed by L3, L2, and L1 to prevent card reading / writing errors.

[0027] Finally, it should be emphasized that the above description is merely a preferred embodiment of this utility model and is not intended to limit this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Therefore, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An RFID reader / writer identification range testing device, characterized in that: The device includes a host computer, a reader / writer mounting base made of non-metallic material, a horizontal adjustment component and a height adjustment component for adjusting the label position. The horizontal adjustment component includes a mounting base, a movable base and a horizontal adjustment screw. The movable base is slidably mounted on the mounting base, and the horizontal adjustment screw is connected to the movable base. The height adjustment component is mounted on the movable base and has a lifting base and a label fixing component made of non-metallic material. One end of the label fixing component is fixed to the lifting base. The label fixing component is located above the reader fixing base, and the RFID reader on the reader fixing base is connected to the host computer.

2. The RFID reader / writer identification range testing device according to claim 1, characterized in that: The movable seat is an L-shaped structure formed by connecting a horizontal part and a vertical part. The horizontal part is slidably engaged with the movable seat through a horizontal guide component. The height adjustment component has a vertically arranged height adjustment screw. The height adjustment screw is set at the upper end of the vertical part through a connector and is connected to the lifting seat in a transmission manner. The lifting seat moves up and down on the vertical part through the height guide component.

3. The RFID reader / writer identification range testing device according to claim 2, characterized in that: The horizontal guide assembly is a guide rail type guide pair or a guide rod type guide pair.

Images