Radio frequency identification (RFID) distance reading testing device

Abstract

The utility model relates to a radio frequency identification (RFID) distance reading testing device which comprises an RFID reader-writer, a pipeline, a plate and a label. The pipeline is formed by assembling short pipe units with shielding layers through connecting pieces, one end of the pipeline is provided with an RFID reader-writer, and the middle of the pipeline is provided with a limiting opening. The test plate is detachably mounted on the limiting part, and a multi-number label is arranged on the test plate. The device adopts a modular design and has the three advantages that the space utilization rate is high, the pipeline length is adjustable, and the device adapts to different test scenes; the closed structure effectively shields external interference and improves the test precision; and multi-label parallel testing is supported, and different label types can be quickly adapted by replacing the preset label plate. According to the device, test environment controllability, operation process standardization and equipment reuse high efficiency are realized, and the accuracy and efficiency of RFID equipment test are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical technology, and in particular to an RFID reading range testing device. Background Technology

[0002] RFID technology, based on the principle of radio frequency signals coupled with spatial transmission, enables automatic object identification by wirelessly acquiring tag information through a reader. It has been widely applied in logistics, manufacturing, and asset management. Reading distance, a key indicator for evaluating reader performance, is defined as the furthest distance a tag can be read at a specified transmission power.

[0003] Traditional testing methods require fixing the tag and adjusting the reader position under a set power until the maximum effective reading and writing distance is reached. However, this method has significant drawbacks: First, the reader needs to be moved repeatedly during the testing process, which is particularly demanding for space requirements when dealing with ultra-long distances of more than 20 meters. Second, positioning deviations and environmental interference caused by movement, such as electromagnetic fluctuations and object obstruction, will reduce the consistency and reliability of the test results and affect the accuracy of performance evaluation. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is that the existing technology has the problem of difficult to meet the stringent requirements of test distance and test environment. This utility model provides an RFID reading distance test device with small environmental variables, which can effectively improve the test accuracy.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] An RFID reading range testing device includes: an RFID reader / writer, a pipe, a plate, and a tag. The RFID reader / writer is disposed at one end of the pipe, and the tag is disposed on the plate. A limiting part is provided in the middle of the pipe, and the plate is detachably disposed within the limiting part.

[0007] The limiting part includes a first opening at the upper part of the pipe, and the pipe is composed of short pipe units connected by connectors.

[0008] Furthermore, the surface of the pipe is provided with a shielding layer.

[0009] Furthermore, the limiting part also includes a second opening at the lower part of the pipe, and the axial length of the first opening is greater than that of the second opening; or a groove is provided on the lower inner wall corresponding to the first opening.

[0010] Furthermore, the height of the plate extends beyond the upper edge of the pipe.

[0011] Furthermore, the first opening is rectangular, and the outer contour of the plate is shaped according to the pipe opening.

[0012] Furthermore, the plates are equidistantly distributed at predetermined intervals, wherein the center-to-center distance between adjacent plates is not less than 1 meter.

[0013] Furthermore, each of the plates is provided with a number.

[0014] Furthermore, a pipe support is provided at the bottom of the pipe.

[0015] Furthermore, the width of the plate is smaller than the inner diameter of the pipe, and the bottom is similar to a "V" shape.

[0016] Furthermore, the RFID reader is mounted on the holder.

[0017] The present invention has the following beneficial effects:

[0018] 1. The RFID reading range testing device proposed in this utility model adopts an integrated structural design, which has the characteristics of small space occupation and low cost; it controls external interference through a closed testing environment, which significantly improves the measurement accuracy; and it can be compatible with the reading of various types of tags, and supports multi-sample parallel testing, and is applicable to various readers.

[0019] 2. This utility model proposes an RFID reading range testing device. The pipe surface is equipped with a shielding layer to form an electromagnetically sealed cavity inside the pipe, suppressing interference with test results caused by factors such as refraction of radio frequency signals. Openings or slots in the pipe ensure that each sheet can be placed flat and easily operated. The pipe adopts a modular design, quickly assembled from short pipe units using connectors, allowing for flexible length expansion according to testing needs and adapting to different scale testing scenarios.

[0020] 3. The present invention proposes an RFID reading range testing device, wherein a number of tagged test panels are provided in the signal channel, and a limiting part is provided on the inner wall of the channel corresponding to the position of each test panel to ensure that each panel is equidistantly distributed; each test panel is detachable and cooperates with the limiting mechanism to realize the function of independent replacement.

[0021] 4. This utility model proposes an RFID reading distance testing device. Each test panel has multiple independently numbered tags. By reading the response data of multiple tags at the same distance, the stability of tag identification and reader distance can be evaluated simultaneously. Furthermore, dedicated tag plates can be made for various types of tags to adapt to different tag testing needs. During testing, only the corresponding tag plate needs to be replaced in the device to complete the adaptation, and the replaced tag plate can be properly stored for subsequent reuse. This enhances the convenience and flexibility of the testing process. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model.

[0023] Figure 2 This is a cross-sectional schematic diagram of the present invention.

[0024] Figure 3 This is a schematic diagram of the pipe cross-section of this utility model.

[0025] Figure 4 This is a schematic diagram of the sheet material and label of this utility model.

[0026] The attached figures are labeled as follows: 10-RFID reader; 20-pipe; 21-first opening; 22-second opening; 23-shielding layer; 24-short pipe unit; 30-plate; 40-tag; 50-connector; 60-pipe support; 70-retainer. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0028] The connections in this invention can be detachable or integral; mechanical or electrical; direct or indirect via an intermediate medium; or refer to the internal communication or interaction between two components. The directional terms "front, back, left, right, up, down" are not fixed but are used to better describe the content of this invention. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0029] Example 1.

[0030] An RFID reading range testing device includes: an RFID reader / writer 10, a pipe 20, a plate 30, and a tag 40. The RFID reader / writer 10 is disposed at one end of the pipe 20, and the tag 40 is disposed on the plate 30. A limiting part is provided in the middle of the pipe 20, and the plate 30 is detachably disposed in the limiting part. The pipe 20 is made of metal, and the metal pipe 20 can reflect or absorb electromagnetic waves to reduce the impact of electromagnetic radiation on internal equipment.

[0031] The limiting part includes a first opening 21 at the upper part and a second opening 22 at the lower part of the pipe 20, and the axial length of the first opening 21 is greater than that of the second opening 22. The pipe 20 is composed of short pipe units 24 connected by connectors 50, such as pipe clamps, threaded connections, and compression connections.

[0032] The height of the plate 30 exceeds the upper edge of the pipe 20.

[0033] The first opening 21 is rectangular, and the outer contour of the plate 30 is shaped according to the opening of the pipe 20.

[0034] The plates 30 are equidistantly distributed at predetermined intervals.

[0035] Each of the plates 30 is provided with a number of labels 40, and each label 40 is provided with a corresponding number.

[0036] The bottom of the pipe 20 is provided with a pipe support 60.

[0037] The width of the plate 30 is smaller than the inner diameter of the pipe 20, and the bottom is similar to a "V" shape.

[0038] The RFID reader 10 is mounted on the holder 70.

[0039] Example 2.

[0040] An RFID reading range testing device includes: an RFID reader / writer 10, a pipe 20, a plate 30, and a tag 40. The RFID reader / writer 10 is disposed at one end of the pipe 20, and the tag 40 is disposed on the plate 30. A limiting part is provided in the middle of the pipe 20, and the plate 30 is detachably disposed in the limiting part.

[0041] The limiting part includes a first opening 21 on the upper part of the pipe 20 and a corresponding groove on the lower inner wall. The pipe 20 is made of non-metallic material and is composed of short pipe units 24 connected by connectors 50.

[0042] The surface of the pipe 20 is provided with a shielding layer 23.

[0043] The height of the plate 30 exceeds the upper edge of the pipe 20.

[0044] The first opening 21 is rectangular, and the outer contour of the plate 30 is shaped according to the opening of the pipe 20.

[0045] The plates 30 are distributed at predetermined intervals, wherein the center distance between adjacent plates 30 is not less than 1 meter.

[0046] Each of the plates 30 is provided with a number of labels 40, and each label 40 is provided with a corresponding number.

[0047] The bottom of the pipe 20 is provided with a pipe support 60.

[0048] The RFID reader 10 is mounted on the holder 70.

[0049] The testing method is as follows: The RFID reader 10 is fixed at a designated position at one end of the pipe 20, and radio frequency signals are transmitted into the pipe 20. The farthest identifiable tag 40 position and the position where all tags 40 on a single tag board can be completely read are recorded. The data processing results are obtained as follows:

[0050] 1. Maximum reading distance test: By repeatedly reading the tag, the farthest tag position read each time is recorded. The tag position read by the RFID reader 10 at the farthest distance is taken as the theoretical maximum reading distance performance value of this model of equipment.

[0051] 2. Standard Reading Distance Test: With multiple RFID readers 10 of the same model, each device is repeatedly read multiple times. The closest distance data at which each RFID reader 10 can completely read all tags 40 on a single board is taken as the standard value of the reading distance performance of that model of device.

[0052] This method ensures the reliability and representativeness of the data through multiple tests using multiple devices of the same model, thereby accurately evaluating the reading range performance of RFID devices.

[0053] The above embodiments are for illustrative purposes only and are not intended to limit the present invention. Therefore, all equivalent changes or modifications made to the methods described in accordance with the claims of the present invention patent application are included within the scope of the present invention patent application.

Claims

1. An RFID readability testing device, comprising: The RFID reader (10), pipe (20), plate (30) and tag (40) are provided, wherein the RFID reader (10) is disposed at one end of the pipe (20) and the tag (40) is disposed on the plate (30); characterized in that a limiting part is provided in the middle of the pipe (20) and the plate (30) is detachably disposed in the limiting part; The limiting part includes a first opening (21) on the upper part of the pipe (20), and the pipe (20) is composed of short pipe units (24) connected by connectors (50).

2. The RFID reading range testing device according to claim 1, characterized in that, The surface of the pipe (20) is provided with a shielding layer (23).

3. The RFID reading range testing device according to claim 1, characterized in that, The limiting part further includes a second opening (22) opened at the lower part of the pipe (20), and the axial length of the first opening (21) is greater than that of the second opening (22); or a groove is provided on the lower inner wall corresponding to the first opening (21).

4. The RFID readability testing device according to claim 1, characterized in that, The height of the plate (30) exceeds the upper edge of the pipe (20).

5. An RFID reading range testing device according to any one of claims 1 or 3, characterized in that, The first opening (21) is rectangular, and the outer contour of the plate (30) is shaped according to the opening of the pipe (20).

6. An RFID reading range testing device according to any one of claims 1 or 4, characterized in that, The plates (30) are equidistant from each other at predetermined intervals.

7. The RFID reading range testing device according to claim 1, characterized in that, Each of the plates (30) is provided with a number of labels (40), and each label (40) is provided with a corresponding number.

8. The RFID reading range testing device according to claim 1, characterized in that, The bottom of the pipe (20) is provided with a pipe support (60).

9. An RFID reading range testing device according to any one of claims 1 or 4, characterized in that, The width of the plate (30) is smaller than the inner diameter of the pipe (20), and the bottom is similar to a "V" shape.

10. An RFID reading range testing device according to claim 1, characterized in that, The RFID reader (10) is mounted on the holder (70).

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