CN210213022U

CN210213022U - Channel machine based on RFID electronic tag identification

Info

Publication number: CN210213022U
Application number: CN201921120078.1U
Authority: CN
Inventors: Kai Jiang; 蒋凯; Baozhen Ma; 马保祯; Yixue Yang; 杨忆雪; Shilei Yu; 余石磊; Tao Wang; 王涛
Original assignee: Wuxi Taihu University
Current assignee: Wuxi Taihu University
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-03-31
Anticipated expiration: 2029-07-17

Abstract

The utility model provides a passageway machine based on RFID electronic tags discernment, including passageway rectangle frame, control box, conveyer belt mechanism, control two side RFID antenna mechanism, bottom RFID antenna mechanism, top RFID antenna mechanism and two adjustable RFID antenna mechanism around and. The channel machine based on RFID electronic tag identification can realize six-side omnibearing detection on transported articles by utilizing the left and right side RFID antenna mechanisms, the bottom RFID antenna mechanism, the top RFID antenna mechanism and the front and back adjustable RFID antenna mechanisms, and can reliably read no matter which side the RFID electronic tag is positioned on, thereby avoiding the problem of reading missing; the position sensor can be used for detecting whether the position of the transported object is in place or not, and the controller controls the conveyer belt motor to stop after the transported object is in place, so that the RFID electronic tag is read in a static state, and the RFID electronic tag reading device has better reading reliability.

Description

Channel machine based on RFID electronic tag identification

Technical Field

The invention relates to an RFID (radio frequency identification) channel machine, in particular to a channel machine based on RFID electronic tag identification.

Background

Currently, as a non-contact wireless identification technology, the RFID technology can identify an article quickly without contact, and can identify a plurality of articles at the same time, and has been widely applied to the fields of unmanned retail, logistics sorting, asset management, and the like. However, when the transported articles on the channel machine enter the channel machine, the setting position of the RFID electronic tag is not fixed, if the RFID antenna with a single orientation is adopted, the problem of reading omission easily occurs, and the reading process of the RFID electronic tag on the channel machine is actually completed in a moving state, and the problem of reading omission also easily occurs. Therefore, it is necessary to design a passageway machine based on RFID tag identification, which can reliably read the RFID tag attached to the transported object.

Disclosure of Invention

The utility model aims to provide a: provided is a passage machine based on RFID electronic tag identification, which can reliably read the RFID electronic tag stuck on a transported object.

In order to realize the purpose of the utility model, the utility model provides a channel machine based on RFID electronic tag identification, which comprises a channel rectangular frame, a control box, a conveyer belt mechanism, a left side RFID antenna mechanism, a right side RFID antenna mechanism, a bottom RFID antenna mechanism, a top RFID antenna mechanism and a front adjustable RFID antenna mechanism and a rear adjustable RFID antenna mechanism; a supporting leg is vertically arranged at each of four top corners of the lower side surface of the channel rectangular frame; the two side RFID antenna mechanisms are respectively arranged on the left side and the right side of the channel rectangular frame; the bottom RFID antenna mechanism is arranged at the center of the bottom of the channel rectangular frame; the top RFID antenna mechanism is arranged at the center of the top of the channel rectangular frame; two adjustable RFID antenna mechanisms are mounted on the front side and the rear side of the top of the channel rectangular frame in a hanging manner; the conveying belt mechanism penetrates through the channel rectangular frame from the middle part of the channel rectangular frame; a position sensor is arranged on the left side surface in the channel rectangular frame through a metal corrugated pipe; the control box is arranged on the outer side surface of the channel rectangular frame; a controller, a motor driving circuit and an RFID read-write module which are electrically connected with the controller are arranged in the control box; an emergency stop switch and an audible and visual alarm which are electrically connected with the controller are arranged on the side surface of the control box; the RFID reading and writing module is respectively and electrically connected with the bottom RFID antenna mechanism, the top RFID antenna mechanism, the two side RFID antenna mechanisms and the RFID plate-shaped antennas of the two adjustable RFID antenna mechanisms; the controller drives a conveyer belt motor of the conveyer belt mechanism to start and stop through a motor driving circuit; the controller is arranged in the metal corrugated pipe in a penetrating way through a connecting lead and is electrically connected with the position sensor.

Further, the conveying belt mechanism comprises fixing supports at two ends, two supporting rollers and a conveying belt assembly; the two supporting rolls are respectively and rotatably arranged on the fixed brackets at the two ends through two driving rotating shafts; the conveyer belt motor is arranged on the side edge of the fixed support and is used for driving one of the supporting rollers to rotate; the conveying belt assembly comprises two driving belts and a supporting net; the driving belt is arranged at the edge positions of the two supporting rollers in a surrounding manner; the supporting net is arranged around the middle parts of the two supporting rolls, and the edges of the two sides of the supporting net are respectively and fixedly arranged on the driving belts at the two sides.

Furthermore, spacing stop blocks are arranged on the driving belt at intervals.

Further, the side RFID antenna mechanism comprises a mounting screw, a fixed mounting nut and a fixed disc arranged on the mounting screw; strip-shaped adjusting holes are vertically formed in the left side frame and the right side frame of the channel rectangular frame; the RFID plate-shaped antenna of the side RFID antenna mechanism is fixedly arranged on the end part of the mounting screw rod; mounting screw rods of the two side RFID antenna mechanisms are respectively inserted into the strip-shaped adjusting holes on the two sides, and fixed mounting nuts are screwed on the mounting screw rods; the fixed disc and the mounting nut are respectively positioned on the inner side and the outer side of the rectangular channel frame, and the RFID plate-shaped antenna is positioned in the rectangular channel frame.

Further, the RFID plate-shaped antenna of the bottom RFID antenna mechanism is installed at the bottom of the channel rectangular frame through the fixing rod, and the RFID plate-shaped antenna is located in the channel rectangular frame.

Further, the top RFID antenna mechanism comprises an inserting pipe, an adjusting stud and an adjusting head; the upper side surface and the lower side surface of the adjusting head are provided with adjusting threaded holes in a penetrating manner, and the side edge of the adjusting head is provided with an adjusting handle rod; the insertion pipe is vertically installed at the top of the channel rectangular frame in a penetrating mode, and a limiting strip-shaped hole is vertically formed in the pipe wall of the insertion pipe; the adjusting stud is vertically inserted into the inserting pipe and is provided with a limiting convex column embedded into the limiting strip-shaped hole; the upper end of the adjusting stud is arranged in the adjusting threaded hole in a threaded manner after extending out of the upper pipe orifice of the inserting pipe; and the RFID plate-shaped antenna of the top RFID antenna mechanism is fixedly arranged on the lower end part of the adjusting stud extending out of the lower pipe orifice of the cartridge pipe.

Further, the adjustable RFID antenna mechanism comprises a suspension rod, two clamping nuts, a horizontal swing rod, a rotary sleeve and a vertical rotary shaft; the upper end of the suspension rod penetrates through the top of the channel rectangular frame, and the upper end of the suspension rod is provided with a fixing external thread; the two clamping nuts are both screwed on the fixed external thread and are respectively positioned on the upper side and the lower side of the top of the channel rectangular frame; one end of the horizontal swing rod is fixedly arranged on the lower end of the suspension rod, and the rotary sleeve is fixedly arranged on the other end of the horizontal swing rod; the vertical rotating shaft is vertically inserted into the rotating sleeve, and a limiting convex ring for preventing the vertical rotating shaft from falling is arranged at the upper end of the vertical rotating shaft; the lower end of the vertical rotating shaft is hinged with a hinge seat; the RFID plate-shaped antenna of the adjustable RFID antenna mechanism is fixedly arranged on the hinging seat.

The beneficial effects of the utility model reside in that: six-side omnibearing detection on transported articles can be realized by utilizing the left and right side RFID antenna mechanisms, the bottom RFID antenna mechanism, the top RFID antenna mechanism and the front and back adjustable RFID antenna mechanisms, and the RFID electronic tag can be reliably read no matter which surface the RFID electronic tag is positioned on, so that the problem of reading missing is avoided; the position sensor can be used for detecting whether the position of the transported object is in place or not, and the controller controls the conveyer belt motor to stop after the position is in place, so that the RFID electronic tag is read in a static state, and the RFID electronic tag has better reading reliability; the position of the position sensor can be adjusted as required by utilizing the metal corrugated pipe, and the position sensor can be conveniently wired; when the conveyer belt motor is paused, if the RFID electronic tag information is not read, the audible and visual alarm can send out audible and visual alarm signals, and the workers can check the RFID electronic tag on site to ensure that the RFID electronic tag information cannot be missed.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic diagram of the circuit structure of the present invention.

Detailed Description

The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.

Example 1:

as shown in fig. 1 and 2, the utility model discloses a passageway machine based on RFID electronic tags discernment includes: the system comprises a channel rectangular frame 1, a control box 31, a conveying belt mechanism, a left side face RFID antenna mechanism, a right side face RFID antenna mechanism, a bottom RFID antenna mechanism, a top RFID antenna mechanism and a front adjustable RFID antenna mechanism and a rear adjustable RFID antenna mechanism; four top corners of the lower side surface of the channel rectangular frame 1 are vertically provided with a supporting leg 2; two side RFID antenna mechanisms are respectively arranged on the left side and the right side of the channel rectangular frame 1; the bottom RFID antenna mechanism is arranged at the center of the bottom of the channel rectangular frame 1; the top RFID antenna mechanism is arranged at the center of the top of the channel rectangular frame 1; two adjustable RFID antenna mechanisms are mounted on the front side and the rear side of the top of the channel rectangular frame 1 in a hanging manner; the conveying belt mechanism penetrates through the channel rectangular frame 1 from the middle part of the channel rectangular frame 1; a position sensor 30 is arranged on the left side surface in the channel rectangular frame 1 through a metal corrugated pipe 29; the control box 31 is arranged on the outer side surface of the channel rectangular frame 1; a controller, a motor driving circuit electrically connected with the controller and an RFID read-write module are arranged in the control box 31; an emergency stop switch 32 and an audible and visual alarm 33 which are electrically connected with the controller are arranged on the side surface of the control box 31; the RFID reading and writing module is respectively and electrically connected with the bottom RFID antenna mechanism, the top RFID antenna mechanism, the two side RFID antenna mechanisms and the RFID plate-shaped antennas 12 of the two adjustable RFID antenna mechanisms; the controller drives a conveyor belt motor 28 of the conveyor belt mechanism to start and stop through a motor driving circuit; the controller is electrically connected with the position sensor 30 through a connecting lead wire arranged in the metal corrugated pipe 29.

Six-side omnibearing detection of the transported object 34 can be realized by utilizing the left and right side RFID antenna mechanisms, the bottom RFID antenna mechanism, the top RFID antenna mechanism and the front and back adjustable RFID antenna mechanisms, and the RFID electronic tag 35 can be reliably read no matter which side is located, so that the problem of reading missing is avoided; the position sensor 30 can detect whether the position of the transported article 34 is in place, and the controller controls the conveyor belt motor 28 to stop after the position is in place, so that the RFID electronic tag 35 is read in a static state, and the reading reliability is good; the position of the position sensor 30 can be adjusted as required by using the metal corrugated pipe 29, and the routing of the position sensor 30 can be facilitated; when the conveyer belt motor 28 is paused, if the information of the RFID electronic tag 35 is not read, the audible and visual alarm 33 can send out audible and visual alarm signals, and the staff can carry out on-site inspection to ensure that reading omission does not occur.

Further, the conveyor belt mechanism comprises a fixed bracket 22 at two ends, two supporting rollers 24 and a conveyor belt assembly; two supporting rolls 24 are respectively and rotatably arranged on the fixed brackets 22 at the two ends through two driving rotating shafts 23; a conveyer motor 28 is arranged on the side edge of the fixed bracket 22 and is used for driving one of the supporting rollers 24 to rotate; the conveyor assembly comprises two drive belts 25 and a support net 27; a drive belt 25 is disposed around the edges of the two support rollers 24; the supporting net 27 is arranged around the middle of the two supporting rollers 24, and two side edges of the supporting net 27 are respectively fixedly arranged on the driving belts 25 at two sides. The arrangement of the supporting net 27 can facilitate the communication of the RFID plate-shaped antenna 12 at the lower side, and the blocking of radio frequency signals can be effectively reduced; the contact skid resistance and firmness with the supporting roller 24 can be enhanced by the driving belt 25, and the skid generated by directly using the supporting net 27 for transmission is avoided.

Further, limit stoppers 26 are provided at intervals on the drive belt 25. The edge limitation can be realized by using the limiting stop block 26, and the conveyed articles 34 are prevented from sliding off from the side edges.

Further, the side RFID antenna mechanism includes a mounting screw 19, a fixed mounting nut 20, and a fixed disc 21 disposed on the mounting screw 19; strip-shaped adjusting holes are vertically formed in the left side frame and the right side frame of the channel rectangular frame 1; the RFID plate antenna 12 of the side RFID antenna mechanism is fixedly arranged on the end of the mounting screw 19; mounting screw rods 19 of the two side RFID antenna mechanisms are respectively inserted into the strip-shaped adjusting holes on the two sides, and fixed mounting nuts 20 are screwed on the mounting screw rods 19; the fixed disc 21 and the mounting nut 20 are respectively positioned on the inner side and the outer side of the channel rectangular frame 1, and the RFID plate-shaped antenna 12 is positioned in the channel rectangular frame 1. The height adjustment of the RFID plate antennas 12 on the left and right sides can be realized by the installation and cooperation of the bar-shaped adjusting holes, the installation screw 19, the fixed disk 21, and the installation nut 20.

Further, the RFID plate antenna 12 of the bottom RFID antenna mechanism is mounted on the bottom of the passage rectangular frame 1 by the fixing bar 18, and the RFID plate antenna 12 is located inside the passage rectangular frame 1.

Further, the top RFID antenna mechanism comprises an inserting pipe 3, an adjusting stud 4 and an adjusting head 5; the upper side surface and the lower side surface of the adjusting head 5 are provided with adjusting threaded holes in a penetrating way, and the side edge of the adjusting head 5 is provided with an adjusting handle rod 6; the insertion pipe 3 is vertically installed at the top of the channel rectangular frame 1 in a penetrating mode, and a limiting strip-shaped hole 7 is vertically formed in the pipe wall of the insertion pipe 3; the adjusting stud 4 is vertically inserted into the inserting pipe 3, and a limiting convex column 8 embedded into the limiting strip-shaped hole 7 is arranged on the adjusting stud 4; the upper end of the adjusting stud 4 is installed in the adjusting threaded hole in a threaded manner after extending out of the upper pipe orifice of the plug-in pipe 3; the RFID plate antenna 12 of the top RFID antenna mechanism is fixedly arranged on the lower end part of the adjusting stud 4 extending out of the lower pipe opening of the plug-in pipe 3. The height of the RFID plate antenna 12 on the upper side can be adjusted by fitting the adjusting stud 4 and the adjusting head 5.

Further, the adjustable RFID antenna mechanism comprises a suspension rod 9, two clamping nuts 11, a horizontal swing rod 13, a rotary sleeve 15 and a vertical rotary shaft 14; the upper end of the suspension rod 9 penetrates through the top of the channel rectangular frame 1, and the upper end of the suspension rod 9 is provided with a fixing external thread 10; the two clamping nuts 11 are both screwed on the fixed external thread 10 and are respectively positioned on the upper side and the lower side of the top of the channel rectangular frame 1; one end of a horizontal swing rod 13 is fixedly arranged on the lower end of the suspension rod 9, and a rotary sleeve 15 is fixedly arranged on the other end of the horizontal swing rod 13; the vertical rotating shaft 14 is vertically inserted into the rotating sleeve 15, and the upper end of the vertical rotating shaft 14 is provided with a limiting convex ring 17 for preventing the vertical rotating shaft 14 from falling; the lower end of the vertical rotating shaft 14 is hinged with a hinge seat 16; the RFID plate antenna 12 of the adjustable RFID antenna mechanism is fixedly mounted on the hinge base 16. The horizontal angle adjustment of the RFID plate-shaped antenna 12 can be realized by the matching installation of the rotary sleeve 15 and the vertical rotary shaft 14; the pitch angle adjustment of the RFID plate antenna 12 can be realized by using the hinge base 16; by means of the mounting cooperation of the two clamping nuts 11 and the fixing external thread 10, a fixed mounting and a height adjustment can be achieved.

In the channel machine based on RFID electronic tag identification, the controller is a control module formed by a singlechip and used for receiving and transmitting control signals; the audible and visual alarm 33 can be an existing audible and visual alarm; the position sensor 30 is an infrared position sensor for detecting the position of the conveyed article; the motor driving circuit is an existing stepping motor driving circuit; the conveyer motor 28 adopts an existing stepping motor; the RFID read-write module adopts the existing RFID radio frequency read-write module; the RFID plate antenna 12 is an existing plate antenna, that is, a radio frequency antenna is laid flat and embedded in a panel; the controller sends the read information of each RFID electronic tag 35 to the upper computer for recording and storing in real time through the serial port.

When the channel machine based on RFID electronic tag identification is used, firstly, according to the size of a transported article 34, the height and the inclination angle of the RFID plate-shaped antenna 12 of the two adjustable RFID antenna mechanisms are adjusted, then the height of the RFID plate-shaped antenna 12 on the left side and the height of the RFID plate-shaped antenna 12 on the right side are adjusted through the mounting nut 20, and then the height of the RFID plate-shaped antenna 12 on the upper side is adjusted through rotating the adjusting head 5; then, the controller drives the conveyor belt motor to start working through the motor driving circuit, so that the transported objects 34 are transported into the channel rectangular frame 1, when the position sensor 30 collects that the transported objects 34 move to the detection position, the controller stops the conveyor belt motor 28 through the motor driving circuit, at this time, the transported objects 34 are just positioned in the surrounding range of six RFID plate-shaped antennas 12 on the upper side, the lower side, the left side, the right side, the front side and the rear side, so that the all-dimensional reading of the RFID electronic tags 35 adhered to the transported objects 34 is realized, a blind area covered by the antennas does not exist, the RFID electronic tags 35 on any surface can be read, and the better reading reliability is achieved; if the RFID read-write module does not read the information of the RFID electronic tag 35 through the six RFID plate-shaped antennas 12 when the conveyor belt motor 28 stops, the audible and visual alarm 33 is controlled by the controller to give an alarm, the field personnel presses the emergency stop button to stop running, and the RFID electronic tag 35 stuck on the transported object 34 is checked.

As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited thereto. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a passageway machine based on RFID electronic tags discernment which characterized in that: the RFID antenna system comprises a channel rectangular frame (1), a control box (31), a conveying belt mechanism, a left side RFID antenna mechanism, a right side RFID antenna mechanism, a bottom RFID antenna mechanism, a top RFID antenna mechanism and a front adjustable RFID antenna mechanism and a rear adjustable RFID antenna mechanism; four top corners of the lower side surface of the channel rectangular frame (1) are vertically provided with a supporting leg (2); the two side RFID antenna mechanisms are respectively arranged on the left side and the right side of the channel rectangular frame (1); the bottom RFID antenna mechanism is arranged at the center of the bottom of the channel rectangular frame (1); the top RFID antenna mechanism is arranged at the center of the top of the channel rectangular frame (1); two adjustable RFID antenna mechanisms are mounted on the front side and the rear side of the top of the channel rectangular frame (1) in a hanging manner; the conveying belt mechanism penetrates through the channel rectangular frame (1) from the middle part of the channel rectangular frame (1); a position sensor (30) is arranged on the left side surface in the channel rectangular frame (1) through a metal corrugated pipe (29); the control box (31) is arranged on the outer side surface of the channel rectangular frame (1); a controller, a motor driving circuit and an RFID read-write module which are electrically connected with the controller are arranged in the control box (31); an emergency stop switch (32) and an audible and visual alarm (33) which are electrically connected with the controller are arranged on the side surface of the control box (31); the RFID reading and writing module is respectively and electrically connected with the bottom RFID antenna mechanism, the top RFID antenna mechanism, the two side RFID antenna mechanisms and the RFID plate-shaped antennas (12) of the two adjustable RFID antenna mechanisms; the controller drives a conveyor belt motor (28) of the conveyor belt mechanism to start and stop through a motor driving circuit; the controller is arranged in the metal corrugated pipe (29) through a connecting lead in a penetrating way and is electrically connected with the position sensor (30).

2. The RFID tag identification-based channel machine according to claim 1, characterized in that: the conveying belt mechanism comprises fixed supports (22) at two ends, two supporting rollers (24) and a conveying belt assembly; the two supporting rolls (24) are respectively and rotatably arranged on the fixed brackets (22) at the two ends through two driving rotating shafts (23); the conveying belt motor (28) is arranged on the side edge of the fixed bracket (22) and is used for driving one of the supporting rollers (24) to rotate; the conveyor belt assembly comprises two drive belts (25) and a support net (27); a driving belt (25) is arranged around the edge positions of the two supporting rollers (24); the supporting net (27) is arranged in the middle of the two supporting rollers (24) in a surrounding mode, and the edges of the two sides of the supporting net (27) are fixedly installed on the driving belts (25) on the two sides respectively.

3. The RFID tag identification-based channel machine according to claim 2, characterized in that: spacing stop blocks (26) are arranged on the driving belt (25) at intervals.

4. The RFID tag identification-based channel machine according to claim 1, characterized in that: the side RFID antenna mechanism comprises a mounting screw rod (19), a fixed mounting nut (20) and a fixed disc (21) arranged on the mounting screw rod (19); strip-shaped adjusting holes are vertically formed in the left side frame and the right side frame of the channel rectangular frame (1); an RFID plate-shaped antenna (12) of the side RFID antenna mechanism is fixedly arranged on the end part of the mounting screw rod (19); mounting screw rods (19) of the two side RFID antenna mechanisms are respectively inserted into the strip-shaped adjusting holes on the two sides, and fixed mounting nuts (20) are screwed on the mounting screw rods (19); the fixed disc (21) and the mounting nut (20) are respectively positioned on the inner side and the outer side of the channel rectangular frame (1), and the RFID plate-shaped antenna (12) is positioned in the channel rectangular frame (1).

5. The RFID tag identification-based channel machine according to claim 1, characterized in that: an RFID plate antenna (12) of the bottom RFID antenna mechanism is installed at the bottom of the channel rectangular frame (1) through a fixing rod (18), and the RFID plate antenna (12) is located in the channel rectangular frame (1).

6. The RFID tag identification-based channel machine according to claim 1, characterized in that: the top RFID antenna mechanism comprises an inserting pipe (3), an adjusting stud (4) and an adjusting head (5); the upper side and the lower side of the adjusting head (5) are provided with adjusting threaded holes in a penetrating way, and the side edge of the adjusting head (5) is provided with an adjusting handle rod (6); the inserting pipe (3) is vertically installed at the top of the channel rectangular frame (1) in a penetrating mode, and a limiting strip-shaped hole (7) is vertically formed in the pipe wall of the inserting pipe (3); the adjusting stud (4) is vertically inserted into the inserting pipe (3), and a limiting convex column (8) embedded into the limiting strip-shaped hole (7) is arranged on the adjusting stud (4); the upper end of the adjusting stud (4) extends out of the upper pipe orifice of the inserting pipe (3) and then is installed in the adjusting threaded hole in a threaded manner; an RFID plate antenna (12) of the top RFID antenna mechanism is fixedly arranged on the lower end part of an adjusting stud (4) extending out of a lower pipe opening of the inserting pipe (3).

7. The RFID tag identification-based channel machine according to claim 1, characterized in that: the adjustable RFID antenna mechanism comprises a suspension rod (9), two clamping nuts (11), a horizontal swing rod (13), a rotary sleeve (15) and a vertical rotary shaft (14); the upper end of the suspension rod (9) penetrates through the top of the channel rectangular frame (1), and the upper end of the suspension rod (9) is provided with a fixed external thread (10); the two clamping nuts (11) are both screwed on the fixed external thread (10) and are respectively positioned on the upper side and the lower side of the top of the channel rectangular frame (1); one end of a horizontal swing rod (13) is fixedly arranged on the lower end of the suspension rod (9), and a rotary sleeve (15) is fixedly arranged on the other end of the horizontal swing rod (13); the vertical rotating shaft (14) is vertically inserted into the rotating sleeve (15), and the upper end of the vertical rotating shaft (14) is provided with a limiting convex ring (17) for preventing the vertical rotating shaft (14) from falling; the lower end of the vertical rotating shaft (14) is hinged with a hinge seat (16); the RFID plate-shaped antenna (12) of the adjustable RFID antenna mechanism is fixedly arranged on the hinged base (16).