Channel-type non-stop passing RFID (Radio Frequency Identification Device) batch identification equipment

Abstract

The invention belongs to the field of RFID identification, particularly relates to channel-type non-stop passing RFID batch identification equipment, and aims to solve the problems that shielding doors in front of and behind a detection box need to be closed to achieve the effect of no overflow of electromagnetic signals in the detection box when goods pass through the detection box at present, but the process of closing and opening the shielding doors consumes a long time. According to the technical scheme, the device comprises a conveying section and a reading box body, and RFID antennas are installed in the box body; wave-absorbing plates are fixedly mounted in the reading areas of the box body, and the RFID antennas are fixedly mounted in cavities of the wave-absorbing plates respectively; one side of each RFID antenna is electrically connected with an RFID reader, and the antennas are narrow-beam antennas. In the invention, the RFID scanning interval can be controlled, other means (such as an RFID shielding door) are not needed for electromagnetic wave isolation, redundant reflected electromagnetic waves can be absorbed, the reflected electromagnetic waves can be effectively filtered, a shaking effect can be generated when goods pass through, and the space into which the electromagnetic waves enter can be increased.

Description

Technical Field

[0001] The invention relates to the technical field of RFID identification, and in particular to a channel-type non-stop RFID batch identification device. Background Art

[0002] Radio frequency identification is a contactless automatic identification technology. Compared with traditional identification technology, RFID automatic identification technology can read the information of a large number of tags instantly, automatically and at a long distance without manual reading one by one, and can pass through all storage products including metal materials. RFID technology also has the advantages that barcodes do not have, such as waterproof, anti-magnetic, high temperature resistance, long service life, large reading distance, data on the label can be encrypted, larger data storage capacity, and easy to change stored information. It is considered to be a substitute for barcode labels in the future and can be widely used in warehousing and logistics fields to batch identify inventory items in and out of the warehouse. It can realize non-contact batch accurate and rapid identification of RFID electronic tag information attached to items. RFID technology needs to be used together with hardware equipment.

[0003] The channel-type RFID batch identification equipment includes a detection box and a transportation line, and the transportation line runs through the detection box. Although the above device is highly automated, safe and reliable in use, when it is actually running, when the goods pass through the detection box, it is necessary to close the shielding doors before and after the detection box to achieve the effect of no overflow of the electromagnetic signal in the detection box, but it takes a long time in the process of closing and opening the shielding doors, resulting in a decrease in the efficiency of the overall production process. In response to the above problems, the present invention document proposes an RFID channel-type non-stop batch identification device. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that when goods pass through the inspection box, it is necessary to close the shielding doors before and after the inspection box to achieve the effect of preventing the electromagnetic signal in the inspection box from overflowing, but the process of closing and opening the shielding doors consumes a long time, resulting in a decrease in the efficiency of the overall production process. A channel-type non-stop RFID batch identification device is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A channel-type non-stop RFID batch identification device comprises an intermediate conveying frame, a plurality of intermediate conveying rollers for material identification are rotatably connected between the two sides of the intermediate conveying frame, a bottom RFID antenna is arranged between the inner walls on both sides of the intermediate conveying frame, the bottom RFID antenna is arranged below the intermediate conveying roller, a box is fixedly connected to the top of the intermediate conveying frame, side RFID antennas are arranged on the inner walls on both sides of the box, and a top RFID antenna is arranged on the top of the box;

[0007] An absorbing plate is fixedly installed between the inner walls of both sides of the bottom middle conveying frame, on the top of the box body and on both sides of the box body, and a cavity is provided in the middle of the absorbing plate. The bottom RFID antenna, the side RFID antenna and the top RFID antenna are respectively fixedly installed in the cavity. An RFID reader is installed on the top of the box body 2, which is electrically connected to the bottom RFID antenna, the side RFID antenna and the top RFID antenna respectively;

[0008] The bottom RFID antenna, the side RFID antenna and the top RFID antenna are all narrow beam antennas.

[0009] As a further solution of the present invention, the absorbing plate is a polyurethane solid pyramid plate.

[0010] As a further solution of the present invention, a plurality of photoelectric switches are fixedly mounted on both sides of the intermediate conveying frame.

[0011] As a further solution of the present invention, the circumferences of the plurality of intermediate conveying rollers are fixedly connected with polygonal fixing frames.

[0012] As a further solution of the present invention, one end of the intermediate conveying roller is fixedly connected to two intermediate sprockets, and the multiple intermediate sprockets are connected through a chain transmission for driving the intermediate conveying rollers to rotate synchronously for material transportation. One side of the intermediate conveying frame is fixedly connected to a fixed frame, and one side of the fixed frame is fixedly connected to a driving motor. One end of the output shaft of the driving motor is fixedly connected to two driving sprockets, and one of the driving sprockets is connected to one of the intermediate sprockets through a chain transmission to drive the intermediate conveying roller to rotate.

[0013] As a further scheme of the present invention, both ends of the intermediate conveying frame are provided with extended conveying mechanisms for conveying materials, and the extended conveying mechanism includes an extended conveying frame, and multiple first conveying rollers are rotatably connected between the two sides of the extended conveying frame, and one end of the multiple first conveying rollers is fixedly connected to two first sprockets, and the multiple first sprockets are connected to each other through a chain transmission for driving the first conveying rollers to rotate synchronously. The extended conveying frame is therefore fixedly connected with a first motor, and one end of the first motor output shaft is fixedly connected to two second sprockets, and one of the second sprockets is connected to one of the first sprockets through a chain transmission for driving the first conveying rollers to rotate.

[0014] As a further solution of the present invention, the bottoms of the intermediate conveyor frame and the extended conveyor frame are fixedly connected with fixed blocks, the bottoms of the fixed blocks are threadedly connected with support feet, and the bottoms of the intermediate conveyor frame and the extended conveyor frame are fixedly installed with directional wheels.

[0015] As a further solution of the present invention, an industrial control computer is fixedly installed on the top of the box.

[0016] As a further solution of the present invention, curtains are fixedly installed on the top and both sides of the box.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention uses a bottom RFID antenna, a side RFID antenna, a top RFID antenna and a coordinated use of antennas, so that a narrow beam antenna can be used to convert electromagnetic waves with a horizontal lobe angle of less than 30°, a wide axial ratio, a wide bandwidth, and circular polarization, control the range of electromagnetic waves emitted by the antenna, and narrow the electromagnetic wave area, thereby achieving control of the RFID scanning interval without the need to use other means (such as RFID shielding doors, etc.) for electromagnetic wave isolation.

[0019] 2. The present invention, through the provision of absorbing materials, absorbs excess reflected electromagnetic waves during RFID batch identification, thereby controlling the direction of electromagnetic waves in the identification box and effectively filtering reflected electromagnetic waves.

[0020] 3. The present invention installs a fixed frame on a plurality of intermediate conveying rollers, so that the goods produce a shaking effect when passing through, thereby increasing the space for electromagnetic waves to enter, so that the electromagnetic waves can better activate the RFID tags attached to the goods.

[0021] In the present invention, the RFID scanning interval can be controlled without using other means (such as RFID shielding doors, etc.) to isolate electromagnetic waves. At the same time, it can absorb excess reflected electromagnetic waves to control the direction of electromagnetic waves in the identification box, effectively filter out reflected electromagnetic waves, and produce a jitter effect when the goods pass through, thereby increasing the space for electromagnetic waves to enter. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of a three-dimensional structure from a first viewing angle of a channel-type non-stop RFID batch identification device proposed by the present invention;

[0023] Figure 2 A schematic diagram of a three-dimensional structure from a second viewing angle of a channel-type non-stop RFID batch identification device proposed by the present invention;

[0024] Figure 3 This is a cross-sectional structural schematic diagram of an intermediate conveyor frame of a channel-type non-stop passing RFID batch identification device proposed by the present invention;

[0025] Figure 4 This is a schematic diagram of the enlarged structure of point A of a channel-type non-stop RFID batch identification device proposed by the present invention;

[0026] Figure 5This is a schematic diagram of the cross-sectional structure of a channel-type non-stop RFID batch identification device proposed by the present invention;

[0027] Figure 6 A schematic cross-sectional view of an extended conveyor frame for non-stop passage through an RFID batch identification device proposed by the present invention;

[0028] Figure 7 This is a schematic diagram of the overall cross-sectional structure of a channel-type non-stop RFID batch identification device proposed by the present invention.

[0029] In the figure: 1. middle conveyor frame; 2. box body; 3. industrial computer; 4. extension conveyor frame; 5. middle conveyor roller; 6. bottom RFID antenna; 8. absorber plate; 9. photoelectric switch; 10. fixed frame; 11. drive motor; 12. directional wheel; 13. fixed frame; 14. middle sprocket; 15. drive sprocket; 16. side RFID antenna; 17. top RFID antenna; 18. curtain; 19. first motor; 20. first sprocket; 21. fixed block; 22. support foot; 23. second sprocket; 24. first conveyor roller. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] Embodiment 1

[0032] Reference Figure 1-Figure 7 A channel-type non-stop RFID batch identification device includes an intermediate conveying frame 1, a plurality of intermediate conveying rollers 5 for material identification are rotatably connected between the two sides of the intermediate conveying frame 1, the intermediate conveying rollers 5 rotate to convey the materials, a bottom RFID antenna 6 is arranged between the inner walls on both sides of the intermediate conveying frame 1, the bottom RFID antenna 6 is arranged below the intermediate conveying rollers 5, a box body 2 is fixedly connected to the top of the intermediate conveying frame 1, side RFID antennas 16 are arranged on the inner walls on both sides of the box body 2, and a top RFID antenna 17 is arranged on the top of the box body 2;

[0033] An absorbing plate 8 is fixedly installed between the inner walls of both sides of the bottom middle conveying frame 1, on the top of the box body 2 and on both sides of the box body 2. A cavity is set in the middle of the absorbing plate 8. The bottom RFID antenna 6, the side RFID antenna 16 and the top RFID antenna 17 are fixedly installed in the cavity respectively. The absorbing plate 8 is used to absorb the redundant reflected electromagnetic waves to control and identify the direction of the electromagnetic waves in the box body 2 and effectively filter the reflected electromagnetic waves.

[0034] The bottom RFID antenna 6, the side RFID antenna 16 and the top RFID antenna 17 are all narrow beam antennas. The narrow beam antenna can convert electromagnetic waves with a horizontal lobe angle less than 30°, a wide axial ratio, a wide bandwidth, and circular polarization, control the range of electromagnetic waves emitted by the antenna, and narrow the electromagnetic wave area, thereby achieving control of the RFID scanning interval without the need to use other means (such as RFID shielding doors, etc.) for electromagnetic wave isolation.

[0035] Embodiment 2

[0036] Reference Figure 1-Figure 7 , the present invention provides a new technical solution based on the first embodiment:

[0037] In the present invention, the wave absorbing plate 8 is a polyurethane solid pyramid plate, and the composite effect of the pyramid structure and polyurethane achieves efficient wave absorption.

[0038] In particular, a plurality of photoelectric switches 9 are fixedly installed on both sides of the middle conveying frame 1 , and the photoelectric switches 9 are used to control the materials to enter the box body 2 .

[0039] It should be noted that the circumferences of the plurality of intermediate conveying rollers 5 are fixedly connected with polygonal fixing frames 13 , and when the goods pass through the fixing frames 13 , a shaking effect can be generated, thereby increasing the space for electromagnetic waves to enter.

[0040] In the present invention, one end of the intermediate conveying roller 5 is fixedly connected to two intermediate sprockets 14, and the multiple intermediate sprockets 14 are connected through chain transmission to drive the intermediate conveying rollers 5 to rotate synchronously for material transportation. One side of the intermediate conveying frame 1 is fixedly connected to a fixed frame 10, and one side of the fixed frame 10 is fixedly connected to a driving motor 11. One end of the output shaft of the driving motor 11 is fixedly connected to two driving sprockets 15, one of which is connected to one of the intermediate sprockets 14 through chain transmission to drive the intermediate conveying roller 5 to rotate. The driving motor 11 drives multiple intermediate conveying rollers 5 to rotate through the intermediate sprockets 14 and the driving sprockets 15 to convey materials.

[0041] In particular, both ends of the intermediate conveying frame 1 are provided with an extended conveying mechanism for conveying materials, and the extended conveying mechanism includes an extended conveying frame 4, and multiple first conveying rollers 24 are rotatably connected between the two sides of the extended conveying frame 4, and one end of the multiple first conveying rollers 24 is fixedly connected to two first sprockets 20, and the multiple first sprockets 20 are connected through a chain transmission to drive the first conveying rollers 24 to rotate synchronously. The extended conveying frame 4 is therefore fixedly connected with a first motor 19, and one end of the output shaft of the first motor 19 is fixedly connected to two second sprockets 23, one of the second sprockets 23 is connected to one of the first sprockets 20 through a chain transmission to drive the first conveying rollers 24 to rotate, and the first motor 19 drives the first conveying rollers 24 to rotate through the second sprockets 23 and the first sprockets 20 to convey materials.

[0042] It should be noted that the bottom of the intermediate conveyor frame 1 and the extended conveyor frame 4 are fixedly connected with a fixed block 21, the bottom of the fixed block 21 is threadedly connected with a support foot 22, and the bottom of the intermediate conveyor frame 1 and the extended conveyor frame 4 are fixedly installed with a directional wheel 12, which facilitates the movement of the equipment.

[0043] In the present invention, an industrial control computer 3 is fixedly installed on the top of the box body 2.

[0044] In particular, curtains 18 are fixedly installed on the top and both sides of the box body 2, and the curtains 18 are used to increase the aesthetics.

[0045] Working principle: Start the drive motor 11 and the first motor 19. The drive motor 11 drives the multiple intermediate conveyor rollers 5 to rotate through the intermediate sprocket 14 and the drive sprocket 15. The first motor 19 drives the first conveyor roller 24 to rotate through the second sprocket 23 and the first sprocket 20. Then, the material to be identified is placed on the equipment, and then the material is driven to move through the intermediate conveyor roller 5 and the first conveyor roller 24. When the material enters the box 2, the bottom RFID antenna 6, the side RFID antenna 16 and the top RFID antenna 17 are started to batch identify the RFID goods. The narrow beam antenna can convert the horizontal lobe angle to less than 30°, the wide axis ratio, and the wide band. Wide and circularly polarized electromagnetic waves control the range of electromagnetic waves emitted by antenna 7 and narrow the electromagnetic wave area, thereby achieving the control of RFID scanning interval. There is no need to use other means (such as RFID shielding doors, etc.) to isolate electromagnetic waves. When the middle conveyor roller 5 in the middle rotates, it drives the fixed frame 13 to rotate. The fixed frame 13 is used to achieve a shaking effect when the goods pass through, thereby increasing the space for electromagnetic waves to enter and enabling electromagnetic waves to better activate the RFID tags attached to the goods. In the process of identification, the absorbing material can absorb the excess reflected electromagnetic waves to control the direction of the electromagnetic waves in the identification box 2 and effectively filter the reflected electromagnetic waves.

[0046] However, as is well known to those skilled in the art, the working principles and wiring methods of the industrial computer 3, bottom RFID antenna 6, antenna 7, photoelectric switch 9, side RFID antenna 16, top RFID antenna 17, first motor 19, and drive motor 11 are commonplace, and are all conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any optional selections according to their needs or convenience.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A channel-type non-stop RFID batch identification device, characterized in that: The invention comprises an intermediate conveying frame (1), a plurality of intermediate conveying rollers (5) for material identification are rotatably connected between the two sides of the intermediate conveying frame (1), a bottom RFID antenna (6) is arranged between the inner walls on both sides of the intermediate conveying frame (1), the bottom RFID antenna (6) is arranged below the intermediate conveying rollers (5), the top of the intermediate conveying frame (1) is fixedly connected to a box body (2), the inner walls on both sides of the box body (2) are both provided with side RFID antennas (16), and the top of the box body (2) is provided with a top RFID antenna (17); An absorbing plate (8) is fixedly installed between the inner walls of both sides of the bottom intermediate conveying frame (1), on the top of the box body (2) and on both sides of the box body (2), and a cavity is provided in the middle of the absorbing plate (8), and the bottom RFID antenna (6), the side RFID antenna (16) and the top RFID antenna (17) are fixedly installed in the cavity respectively; The bottom RFID antenna (6), the side RFID antenna (16) and the top RFID antenna (17) are all narrow beam antennas.

2. The channel-type non-stop RFID batch identification device according to claim 1 is characterized in that: The wave absorbing plate (8) is a polyurethane solid pyramid plate.

3. The channel-type non-stop RFID batch identification device according to claim 1 is characterized in that: A plurality of photoelectric switches (9) are fixedly mounted on both sides of the intermediate conveying frame (1).

4. The channel-type non-stop RFID batch identification device according to claim 1 is characterized in that: The circumferences of the plurality of intermediate conveying rollers (5) are all fixedly connected with a polygonal fixing frame (13).

5. The channel-type non-stop RFID batch identification device according to claim 1 is characterized in that: One end of each of the intermediate conveying rollers (5) is fixedly connected to two intermediate sprockets (14), and the plurality of intermediate sprockets (14) are connected via a chain transmission for driving the intermediate conveying rollers (5) to rotate synchronously for material transportation. One side of the intermediate conveying frame (1) is fixedly connected to a fixed frame (10), and one side of the fixed frame (10) is fixedly connected to a driving motor (11). One end of the output shaft of the driving motor (11) is fixedly connected to two driving sprockets (15), and one of the driving sprockets (15) is connected to one of the intermediate sprockets (14) via a chain transmission for driving the intermediate conveying rollers (5) to rotate.

6. The channel-type non-stop RFID batch identification device according to claim 1, characterized in that: Both ends of the intermediate conveying frame (1) are provided with an extended conveying mechanism for conveying materials, the extended conveying mechanism comprising an extended conveying frame (4), a plurality of first conveying rollers (24) are rotatably connected between the two sides of the extended conveying frame (4), one end of each of the plurality of first conveying rollers (24) is fixedly connected to two first sprocket wheels (20), the plurality of first sprocket wheels (20) are connected via a chain transmission for driving the first conveying rollers (24) to rotate synchronously, the extended conveying frame (4) is therefore fixedly connected to a first motor (19), one end of the output shaft of the first motor (19) is fixedly connected to two second sprocket wheels (23), one of the second sprocket wheels (23) is connected to one of the first sprocket wheels (20) via a chain transmission for driving the first conveying rollers (24) to rotate.

7. The channel-type non-stop RFID batch identification device according to claim 1 is characterized in that: The bottoms of the intermediate conveying frame (1) and the extended conveying frame (4) are both fixedly connected with a fixing block (21), the bottoms of the fixing blocks (21) are both threadedly connected with a supporting foot (22), and the bottoms of the intermediate conveying frame (1) and the extended conveying frame (4) are both fixedly mounted with a directional wheel (12).

8. The channel-type non-stop RFID batch identification device according to claim 1, characterized in that: An industrial control computer (3) is fixedly mounted on the top of the box (2).

9. The channel-type non-stop RFID batch identification device according to claim 1, characterized in that: The top and both sides of the box body (2) are fixedly mounted with curtains (18).

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