A channel-type radio frequency door and its control method, and tag identification method

Abstract

The present invention discloses a channel-type radio frequency door and its control method and tag identification method, comprising: a frame and a fixed plate arranged on the top of the frame, the frame comprising a first support rod, a second support rod, a third support rod, and a fourth support rod, circularly polarized antenna assemblies are arranged on both sides of the frame, and rotary double-leaf doors are arranged at the front and rear of the frame; a power assembly, a first rotating shaft assembly, a second rotating shaft assembly, a third rotating shaft assembly, and a fourth rotating shaft assembly are arranged on the fixed plate; the rotary double-leaf door comprises a first door panel, a second door panel, a third door panel, and a fourth door panel. The present invention identifies goods by reading the stored information in the RFID radio frequency tag on the goods, realizing functions such as automatic identification and judgment of the goods, realizing batch radio frequency identification bar code information collection and consistency verification, and realizing data interaction and unified management between the radio frequency door and the warehouse management system.

Description

Technical Field

[0001] The present invention relates to the field of radio frequency identification technology, and in particular to a channel-type radio frequency door and a control method thereof, and a tag identification method. Background Art

[0002] Radio frequency identification and radio frequency tag technology (RFID) is widely used and mature in logistics, retail, and manufacturing. Logistics warehousing, retail, and manufacturing are among the most promising application areas of RFID.

[0003] Radio frequency tags are widely used in the power industry as data carriers in meters, data collection terminals, vehicles, supplies, and anti-counterfeiting applications. To facilitate data collection, various manufacturers have developed RFID equipment, such as RFID doors and PDUs. Given the limited application scenarios, these devices are relatively simple. Furthermore, the shielded doors of RFID doors commonly found on the market mostly use metal bi-folding doors or roller shutter mechanisms, which are noisy and require long opening and closing times. The bi-folding mechanism also occupies a large space. Ultra-high frequency (UHF) RFID mechanisms use large-scale scanning and identification, making them impractical for inventory counting and inflexible for handling bulk goods in and out of the warehouse.

[0004] Therefore, there is an urgent need for a channel-type RF gate that can achieve local spatial shielding, reduce noise, occupy a small space, and be flexible in operation. Summary of the Invention

[0005] The present invention provides a channel-type radio frequency door and its control method, and a tag identification method, so as to solve the technical problems in the prior art such as the inability to achieve local space shielding, large noise and space occupation, and inflexible operation.

[0006] In order to solve the above technical problems, an embodiment of the present invention provides a channel-type radio frequency door, comprising: a frame and a fixing plate arranged on the top of the frame, the frame comprising a first support rod, a second support rod, a third support rod and a fourth support rod, circularly polarized antenna assemblies are arranged on both sides of the frame, and rotating double-doors are arranged at the front and rear of the frame;

[0007] The fixed plate is provided with a power assembly, a first rotating shaft assembly, a second rotating shaft assembly, a third rotating shaft assembly and a fourth rotating shaft assembly; the power assembly is connected to the first rotating shaft assembly and the second rotating shaft assembly respectively through a synchronous belt, and the first rotating shaft assembly and the second rotating shaft assembly are further provided with a synchronous wheel assembly respectively, the first rotating shaft assembly moves synchronously with the third rotating shaft assembly through the synchronous wheel assembly, and the second rotating shaft assembly moves synchronously with the fourth rotating shaft assembly through the synchronous wheel assembly;

[0008] The rotary double door includes a first door panel, a second door panel, a third door panel and a fourth door panel; the rotation axis of the first door panel is connected to the first rotation axis assembly, the rotation axis of the second door panel is connected to the second rotation axis assembly, the rotation axis of the third door panel is connected to the third rotation axis assembly, and the rotation axis of the fourth door panel is connected to the fourth rotation axis assembly;

[0009] As a preferred solution, the circularly polarized antenna assembly includes a plurality of circularly polarized antenna units; the circularly polarized antenna units are evenly distributed on both sides of the rack.

[0010] As a preferred solution, each of the circularly polarized antenna units can be controlled and adjusted along the horizontal axis, vertical axis and longitudinal axis.

[0011] As a preferred solution, the synchronous wheel assembly between the first rotating shaft and the third rotating shaft performs synchronous rotation motion via a synchronous belt;

[0012] The synchronous wheel assembly between the second rotating shaft and the fourth rotating shaft performs synchronous rotation motion via a synchronous belt.

[0013] As a preferred solution, the frame and the fixed plate are both provided with metal outer covers, and the first door panel, the second door panel, the third door panel and the fourth door panel are all shielded by transparent materials.

[0014] As a preferred solution, it also includes a first touch screen component, a second touch screen component, a barcode scanning component and a display screen;

[0015] The first touch screen assembly is arranged at the second support rod, the second touch screen assembly is arranged at the fourth support rod, the barcode scanning assembly is arranged on the side of the frame, and the display screen is arranged on the fixing plate.

[0016] Accordingly, the present invention further provides a control method for a channel-type radio frequency gate, which is implemented by the channel-type radio frequency gate described in any one of the above items, comprising:

[0017] In response to a user placing goods in the passage-type radio frequency door, controlling the rotary double-door to close;

[0018] After the rotary double-door is closed, the cargo placed in the channel-type radio frequency door is scanned to determine the cargo location and cargo quantity;

[0019] According to the cargo position, maintaining the orientation of the circularly polarized antenna assembly corresponding to the cargo position unchanged, and controlling the circularly polarized antenna assemblies at other positions to face the cargo position;

[0020] After the circular polarization antenna assembly is controlled, the labels of the goods are scanned according to the quantity of the goods;

[0021] After all the labels of the goods have been scanned, all the circularly polarized antenna components are controlled to restore their initial orientations, and the rotary double doors are controlled to open.

[0022] As a preferred solution, according to the cargo position, the orientation of the circularly polarized antenna assembly corresponding to the cargo position is kept unchanged, and the circularly polarized antenna assemblies at other positions are controlled to face the cargo position, specifically:

[0023] Determining the orientation of the circularly polarized antenna according to the cargo position; wherein the circularly polarized antenna assembly includes a first antenna assembly, a second antenna assembly, and a third antenna assembly, the initial orientations of the first antenna assembly, the second antenna assembly, and the third antenna assembly are a first position, a second position, and a third position, respectively, and the cargo position includes: covering only the first position, covering the first position and the second position, or covering all positions;

[0024] When the cargo position only covers the first position, the orientation of the first antenna assembly is maintained unchanged, and the second antenna assembly and the third antenna assembly are controlled to move toward the first position;

[0025] When the cargo position covers the first position and the second position, the orientations of the first antenna assembly and the second antenna assembly are kept unchanged, and the third antenna assembly is controlled to move toward the first position;

[0026] When the cargo position covers all positions, the orientations of the first antenna assembly, the second antenna assembly, and the third antenna assembly are kept unchanged.

[0027] Accordingly, the present invention further provides a tag identification method, which is implemented by the channel-type radio frequency gate described in any one of the above items, comprising:

[0028] Sending electromagnetic waves of a preset frequency through the circularly polarized antenna assembly so that when the cargo tag enters the working range of the circularly polarized antenna assembly, the cargo tag can be activated and send the cargo information stored therein;

[0029] The cargo information is received, and the cargo information is demodulated and decoded, so that the processed cargo information is displayed, thereby completing the identification of the cargo label.

[0030] As a preferred solution, before displaying the processed cargo information, the method further includes:

[0031] Collect users' facial recognition data and fingerprint recognition data;

[0032] Determining whether the user is a legitimate user based on the face recognition data and fingerprint recognition data;

[0033] If yes, the processed cargo information will be displayed;

[0034] If not, refuse to display the processed cargo information.

[0035] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0036] The technical solution of the present invention is to provide circularly polarized antenna assemblies on both sides of the frame, rotary double-doors on the front and rear of the frame, and power components and rotating components on the fixed plate on the top of the frame, so that the shielding door can be closed to achieve local space shielding during batch radio frequency identification, isolate external interference, and realize small-area ultra-high frequency radio frequency identification of goods RFID tag information. At the same time, by controlling the rotating assembly and the synchronous wheel assembly together, the rotary double-doors adopt the form of spur gears and synchronous belts, which are aggregated into a set of power components to output power, which can ensure the simultaneous opening and closing of the front and rear doors, flexible operation, reduced occupied space, and avoid the problem of high noise in the existing roller shutter lifting structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 : A schematic diagram of the internal structure of a channel-type radio frequency door provided in an embodiment of the present invention;

[0038] Figure 2 : A schematic diagram showing the principle of a door panel of a channel-type radio frequency door provided in an embodiment of the present invention;

[0039] Figure 3 : A schematic diagram of the overall structure of a channel-type radio frequency door provided in an embodiment of the present invention;

[0040] Figure 4 : A flow chart of the steps of a control method for a channel type radio frequency gate provided in an embodiment of the present invention;

[0041] Figure 5 : A schematic diagram of the cargo position in the channel-type radio frequency door provided in an embodiment of the present invention;

[0042] Figure 6 : A flowchart of the steps of the tag identification method provided by an embodiment of the present invention;

[0043] The accompanying drawings in the specification are numerals as follows:

[0044] Frame 1, first support rod 11, second support rod 12, third support rod 13, fourth support rod 14, fixed plate 2, circularly polarized antenna assembly 3, power assembly 4, first rotating shaft assembly 41, second rotating shaft assembly 42, third rotating shaft assembly 43, fourth rotating shaft assembly 44, first door panel 51, second door panel 52, third door panel 53, fourth door panel 54, synchronous wheel assembly 6, first touch screen assembly 71, second touch screen assembly 72, barcode scanning assembly 8, display screen 9. DETAILED DESCRIPTION

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0046] Electronic tags are the carriers of RFID technology. RFID stands for Radio Frequency Identification, a term often used in conjunction with radio frequency identification. Electronic tags are also known as radio frequency tags, transponders, or data carriers; readers are also known as readout devices, scanners, readers, communicators, or reader / writers (depending on whether the electronic tag can be wirelessly rewritten). The electronic tag and reader achieve spatial (contactless) coupling of radio frequency signals through a coupling element. Within the coupling channel, energy transfer and data exchange are achieved based on timing relationships.

[0047] UHF readers / writers: Radio frequency identification devices operating in the UHF band, typically between 840 and 960 MHz (standards vary globally). UHF systems transmit energy through electromagnetic fields and read information stored in UHF RFID tags through electromagnetic wave reflection and coupling. They offer advantages in long-range and group reading. Compared to active 2.4G devices, passive UHF RFID tags require no batteries, resulting in lower costs. Combined with UHF readers / writers, they can significantly reduce project costs.

[0048] Reader: A device that reads (and sometimes writes) tag information and can be designed to be handheld or fixed.

[0049] Antenna: transmits radio frequency signals between the tag and the reader.

[0050] Radio Frequency Identification: A non-contact automatic identification method that uses radio frequency signals to identify target objects and obtain relevant data information.

[0051] Tag: Consists of a coupling element and a chip. Each tag has a unique electronic code. High-capacity electronic tags have user-writable storage space and are attached to objects to identify the target object.

[0052] Example 1

[0053] Please refer to Figure 1 , an embodiment of the present invention provides a channel-type RF door, including: a rack 1 and a fixed plate 2 arranged on the top of the rack 1, the rack 1 includes a first support rod 11, a second support rod 12, a third support rod 13 and a fourth support rod 14, circularly polarized antenna assemblies 3 are provided on both sides of the rack 1, and rotating double-doors are provided on the front and rear of the rack 1.

[0054] In this embodiment, the rack 1 serves as the whole support frame of the channel type radio frequency door. Preferably, the rack 1 of this embodiment is assembled with aluminum profiles, which is convenient for installation and adjustment at various places. It can also be welded in a square form. The radio frequency identification component can be installed inside the frame. Preferably, the radio frequency identification component includes but is not limited to a circularly polarized antenna component 3, which can realize the recognition of RFID radio frequency tags, such as Figure 1 As shown, the circularly polarized antenna components 3 are arranged on both sides of the frame 1.

[0055] As a preferred solution of this embodiment, the circularly polarized antenna assembly 3 includes a plurality of circularly polarized antenna units; the circularly polarized antenna units are evenly distributed on both sides of the rack 1.

[0056] In this embodiment, each circularly polarized antenna unit is evenly arranged on both sides of the frame 1. Preferably, each side is arranged in three layers. This ensures that the circularly polarized antenna can recognize cargo tags of varying heights, or even stacked cargo, improving recognition efficiency and accuracy. The bottommost circularly polarized antenna unit forms the first antenna assembly, the middle layer of circularly polarized antenna units forms the second antenna assembly, and the topmost circularly polarized antenna assembly 3 forms the third antenna assembly.

[0057] As a preferred solution of this embodiment, each of the circularly polarized antenna units can be controlled and adjusted along the horizontal axis, vertical axis and longitudinal axis.

[0058] In this embodiment, due to the arrangement of the circularly polarized antenna assemblies 3 in different layers, each layer of the circularly polarized antenna assemblies 3 has its corresponding scanning range. However, in order to improve the scanning efficiency of the circularly polarized antenna assemblies 3 and reduce the blind spots generated during the scanning process, each circularly polarized antenna unit can realize control and adjustment of the horizontal axis, vertical axis and longitudinal axis, that is, free adjustment of the X, Y and Z axes, which facilitates on-site debugging and improves the efficiency of radio frequency identification.

[0059] The fixed plate 2 is provided with a power assembly 4, a first rotating shaft assembly 41, a second rotating shaft assembly 42, a third rotating shaft assembly 43 and a fourth rotating shaft assembly 44; the power assembly 4 is connected to the first rotating shaft assembly 41 and the second rotating shaft assembly 42 through a synchronous belt, and the first rotating shaft assembly 41 and the second rotating shaft assembly 42 are also provided with a synchronous wheel assembly 6, respectively. The first rotating shaft assembly 41 moves synchronously with the third rotating shaft assembly 43 through the synchronous wheel assembly 6, and the second rotating shaft assembly 42 moves synchronously with the fourth rotating shaft assembly 44 through the synchronous wheel assembly 6.

[0060] The rotating double door includes a first door panel 51, a first door panel 52, a third door panel 53 and a fourth door panel 54; the rotation axis of the first door panel 51 is connected to the first rotation axis assembly 41, the rotation axis of the first door panel 52 is connected to the second rotation axis assembly 42, the rotation axis of the third door panel 53 is connected to the third rotation axis assembly 43, and the rotation axis of the fourth door panel 54 is connected to the fourth rotation axis assembly 44.

[0061] As a preferred solution of this embodiment, the synchronous wheel assembly 6 between the first rotating shaft and the third rotating shaft performs synchronous rotation movement through a synchronous belt; the synchronous wheel assembly 6 between the second rotating shaft and the fourth rotating shaft performs synchronous rotation movement through a synchronous belt.

[0062] In this example, see Figure 2 This diagram shows a rotating bi-directional door. This door's opening mechanism ensures no RF signal leakage. Power assembly 4 utilizes a right-angle speed-regulating motor and a synchronous belt. A pair of spur gears at the motor's output drive the bi-directional doors. The synchronous belt then drives the front and rear doors, allowing them to open and close simultaneously, ensuring safety, reliability, and simple control.

[0063] Furthermore, when the revolving double-door needs to be opened, the power assembly 4 is controlled to operate, so that the right-angle speed regulating motor drives the synchronous belt to operate, thereby driving the synchronous belt to rotate the first rotating shaft and the second rotating shaft, and then the first rotating shaft and the second rotating shaft respectively drive the movement of their corresponding first door panels 51 and 52, thereby opening the first door panels 51 and 52. At the same time, during the rotation of the first and second rotating shafts, they will also drive their corresponding synchronous wheel assemblies 6, and then through their respective synchronous wheel assemblies 6, drive the synchronous belt, so that the first rotating shaft and the third rotating shaft rotate simultaneously and in the same direction, and the second rotating shaft and the fourth rotating shaft rotate simultaneously and in the same direction, thereby opening the third door panel 53 and the fourth door panel 54, so that the front and rear door panels are opened simultaneously. Similarly, when the revolving double-door needs to be closed, the power assembly 4 is controlled to operate in the opposite direction, so that the front and rear door panels are closed simultaneously.

[0064] As you can understand, the power assembly 4 uses a spur gear set + synchronous belt transmission mode, which is integrated into a single power source. This ensures the simultaneous opening and closing of the front and rear screen doors while saving costs. It avoids the traditional screen door mechanism that uses a double-leaf metal door structure similar to an elevator door mechanism, but requires more space on both sides and is not suitable for smaller warehouses. Other mechanisms use a roller shutter lifting structure, but this is noisy and takes longer to open and close.

[0065] As a preferred solution of this embodiment, the frame 1 and the fixed plate 2 are both provided with metal outer covers, and the first door panel 51 , the first door panel 52 , the third door panel 53 and the fourth door panel 54 are all shielded by transparent materials.

[0066] In this example, see Figure 3 , which is a schematic diagram of the shielding door after the metal outer cover is set in this embodiment. Preferably, this embodiment adopts a metal sealing plate assembly structure design, which is fixed to the rack 1 component. Together with the shielding door, it isolates external interference.

[0067] Preferably, the first door panel 51, the first door panel 52, the third door panel 53, and the fourth door panel 54 are all shielded by a transparent material, including a structure of tempered glass and a transparent conductive film. The transparent conductive film attached to the tempered glass not only shields UHF RFID signals, ensures the metal seal of the cabinet, and prevents electromagnetic interference, but also allows for intuitive viewing of the cabinet's contents, facilitating operations for users within the warehouse.

[0068] As a preferred solution of this embodiment, it also includes a first touch screen component 71, a second touch screen component 72, a barcode scanning component 8 and a display screen 9; the first touch screen component 71 is arranged at the second support rod 12, the second touch screen component 72 is arranged at the fourth support rod 14, the barcode scanning component 8 is arranged on the side of the frame 1, and the display screen 9 is arranged on the fixed plate 2.

[0069] In this embodiment, a touch screen assembly is provided for each of the front and rear doors. Preferably, the touch screen assembly is a touch operation screen, wherein the front door is a touch-screen all-in-one machine, and is also equipped with face recognition and fingerprint recognition login. Only pre-registered personnel can operate the equipment and enter the warehouse area to work. The back door is a touch-screen operation split screen, which is displayed synchronously with the all-in-one machine on the front door to facilitate operations in the warehouse area. Preferably, the touch-screen all-in-one machine assembly on the front door is equipped with face recognition and fingerprint recognition devices. Only pre-registered operators can enter the operation interface after logging into the system through face / fingerprint, and then open the cabinet shield door (this channel is the only entrance and exit channel in the warehouse area) to perform operations such as outbound and inbound storage and inventory. Effective management of equipment operation permissions fills the loopholes in asset management in the warehouse area.

[0070] The implementation of the above embodiment has the following effects:

[0071] The technical solution of the present invention is to provide circularly polarized antenna assemblies on both sides of the frame, rotary double-doors on the front and rear of the frame, and power components and rotating components on the fixed plate on the top of the frame, so that the shielding door can be closed to achieve local space shielding during batch radio frequency identification, isolate external interference, and realize small-area ultra-high frequency radio frequency identification of goods RFID tag information. At the same time, by controlling the rotating assembly and the synchronous wheel assembly together, the rotary double-doors adopt the form of spur gears and synchronous belts, which are aggregated into a set of power components to output power, which can ensure the simultaneous opening and closing of the front and rear doors, flexible operation, reduced occupied space, and avoid the problem of high noise in the existing roller shutter lifting structure.

[0072] Example 2

[0073] See also Figure 4 , which is a control method for a channel type radio frequency door provided by the present invention, implemented by the channel type radio frequency door described in the first embodiment above, comprising the following steps S101-S105:

[0074] Step S101: In response to a user placing goods in a channel-type radio frequency door, the rotary double-door is controlled to close.

[0075] In this embodiment, the user places the goods in front of the channel-type radio frequency door, and the face recognition and fingerprint recognition devices in the first touch screen component and / or the second touch screen component are used to verify the user's authority and legitimacy, effectively manage the equipment operation authority, and make up for the loopholes in asset management in the warehouse area.

[0076] Step S102: After the rotary double door is closed, the goods placed in the channel-type radio frequency door are scanned to determine the location and quantity of the goods.

[0077] In this embodiment, by controlling the circularly polarized antenna assembly to perform a preliminary scan, a preliminary scan is performed on the goods in the channel-type RF door, thereby determining the total number of goods scanned and the position of the goods tags in the RF door (first position, second position and / or third position). It should be noted that during the preliminary scan, the orientation of the circularly polarized antenna assembly does not change. As an exemplary solution, when the goods are only placed in the first position, the circularly polarized antenna assemblies corresponding to the second and third positions do not scan and obtain the corresponding goods tags, thereby determining the position of the goods in the RF door.

[0078] As another preferred embodiment, the user scans the barcode of the goods through the barcode scanning component and then puts the goods into the channel shielding door, so that the quantity of the goods can be determined in advance.

[0079] Step S103: According to the cargo position, the orientation of the circular polarization antenna assembly corresponding to the cargo position is kept unchanged, and the circular polarization antenna assemblies at other positions are controlled to face the cargo position.

[0080] As a preferred solution of this embodiment, according to the cargo position, the orientation of the circularly polarized antenna assembly corresponding to the cargo position is kept unchanged, and the circularly polarized antenna assemblies at other positions are controlled to face the cargo position, specifically:

[0081] The orientation of the circularly polarized antenna is determined according to the cargo position; wherein the circularly polarized antenna assembly includes a first antenna assembly, a second antenna assembly, and a third antenna assembly, and the initial orientations of the first antenna assembly, the second antenna assembly, and the third antenna assembly are respectively the first position, the second position, and the third position, and the cargo position includes: covering only the first position, covering the first position and the second position, or covering all positions.

[0082] It should be noted that due to the way the goods are stacked in the RF gate, there will always be goods at the first position. As the number of goods increases or large goods are placed in, the goods may enter the range covered by the second antenna component or even the range covered by the third antenna component. Therefore, the cargo position includes covering only the first position, covering the first and second positions, and covering all positions.

[0083] When the cargo position only covers the first position, the orientation of the first antenna assembly is kept unchanged, and the second antenna assembly and the third antenna assembly are controlled to move toward the first position; when the cargo position covers the first position and the second position, the orientation of the first antenna assembly and the second antenna assembly is kept unchanged, and the third antenna assembly is controlled to move toward the first position; when the cargo position covers all positions, the orientations of the first antenna assembly, the second antenna assembly and the third antenna assembly are kept unchanged.

[0084] In this example, see Figure 5 When the cargo position only covers the first position, it means that the quantity of cargo is relatively small, or the cargo consists of a large number of small items (such as documents, etc.). In order to avoid failure or omission of cargo tag recognition, the second antenna component and the third antenna component facing the remaining positions need to be controlled to face the first position to increase the range of cargo tag recognition.

[0085] Furthermore, when the cargo position covers the first position and the second position, there is no need to change the orientation of the first antenna component and the second antenna component. It is only necessary to control and adjust the orientation of the third antenna component downward to increase the cargo tag recognition range of the first position and the second position.

[0086] Furthermore, when the object position covers all positions, that is, the number of goods is large or the volume of goods is large, the antenna component at each position is required to identify the cargo label at its corresponding position, so the orientation of the first antenna component, the second antenna component and the third antenna component needs to be kept unchanged.

[0087] Step S104: After the circular polarization antenna assembly is controlled, the labels of the goods are scanned according to the quantity of the goods.

[0088] In this embodiment, the labels of the goods are scanned according to the number of goods obtained by the preliminary scan, and the number of labels obtained by the scan can be further obtained. When the number of goods is different from the number of labels, a goods identification error warning is generated to alert the operator.

[0089] Step S105: After all the labels of the goods have been scanned, all the circularly polarized antenna assemblies are controlled to restore their initial orientations, and the rotary double doors are controlled to open.

[0090] The implementation of the above embodiment has the following effects:

[0091] The embodiment of the present invention controls the channel-type radio frequency door to realize ultra-high frequency radio frequency identification of RFID tag information of goods in a small area. At the same time, it can avoid the occurrence of identification blind spots under different cargo positions, control the orientation of the circularly polarized antenna, and thus realize accurate identification of the quantity and location of goods, thereby increasing the accuracy and efficiency of radio frequency identification of cargo tags.

[0092] Example 3

[0093] See also Figure 6 , which is a tag identification method provided by an embodiment of the present invention, implemented by the channel-type radio frequency door described in the first embodiment above, including the following steps S201-S202:

[0094] Step S201: electromagnetic waves of a preset frequency are transmitted through a circularly polarized antenna assembly, so that when a cargo tag enters the working range of the circularly polarized antenna assembly, the cargo tag can be activated and transmit cargo information stored therein.

[0095] Step S202: receiving the cargo information, and performing demodulation and decoding processing on the cargo information, thereby displaying the processed cargo information, and further completing the identification of the cargo label.

[0096] As a preferred solution of this embodiment, before displaying the processed cargo information, the method further includes:

[0097] Collect the user's face recognition data and fingerprint recognition data; determine whether the user is a legitimate user based on the face recognition data and fingerprint recognition data; if so, display the processed goods information; if not, refuse to display the processed goods information.

[0098] In this embodiment, the dual-screen operation of the front and rear doors enables each door to be equipped with a set of touch-screen operation screens, of which the front door is a touch-screen all-in-one machine, and is also equipped with face recognition and fingerprint recognition login. Only pre-registered personnel can operate the equipment and enter the warehouse area to work. The back door is a touch-screen operation split screen, which is displayed synchronously with the all-in-one machine on the front door to facilitate operations in the warehouse area. Furthermore, the touch-screen all-in-one machine component of the front door is equipped with face recognition and fingerprint recognition devices. Only pre-registered operators can enter the operation interface after logging into the system through face / fingerprint, and then open the cabinet shield door (this channel is the only entrance and exit channel in the warehouse area) to perform operations such as outbound and inbound storage and inventory. Effective management of equipment operation permissions fills the loopholes in asset management in the warehouse area.

[0099] As a specific implementation plan of this embodiment, electromagnetic waves of a preset frequency are transmitted outward through a circularly polarized antenna. When the electronic tag of the goods enters the working range of the transmitting antenna, an induced current is generated inside it and it is activated. Then the electronic tag sends out the stored information in the form of a carrier. The circularly polarized antenna receives the carrier signal from the electronic tag and transmits it to the reader. The reader demodulates and decodes the received signal and sends the processed data to the host computer system. After the system background captures the data, it is fed back to the client system one by one and displayed on the touch screen for the user to see. The user can then further verify the goods through the barcode scanning component.

[0100] As can be understood, as an automated device that integrates functions such as automatic batch collection of meter information and sorting task data during warehousing and distribution operations, this embodiment features a high degree of intelligence, accurate batch data collection, and low labor intensity. Through the collaborative operation of a warehouse management system, electronic control system, and mechanical equipment, within a specific warehouse space, meter and other goods information is collected and uploaded according to established rules during warehousing and distribution operations. It can also be seamlessly integrated with automated equipment such as conveyor lines, improving the automation and efficiency of goods management.

[0101] The implementation of the above embodiment has the following effects:

[0102] The embodiment of the present invention installs an ultra-high frequency reader and antenna device in a metal enclosure mechanism, identifies goods by reading the stored information in the RFID radio frequency tag on the goods, realizes functions such as automatic identification and judgment of goods, realizes batch radio frequency identification bar code information collection and consistency verification, and realizes data interaction and unified management between the radio frequency door and the warehouse management system.

[0103] The specific embodiments described above further illustrate the objectives, technical solutions, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. In particular, it should be noted that any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of protection of the present invention for those skilled in the art.

Claims

1. A channel type radio frequency door, characterized in that: include: A rack and a fixing plate arranged on the top of the rack, the rack including a first support rod, a second support rod, a third support rod and a fourth support rod, circularly polarized antenna assemblies are arranged on both sides of the rack, and rotating double-doors are arranged on the front and rear of the rack; The fixed plate is provided with a power assembly, a first rotating shaft assembly, a second rotating shaft assembly, a third rotating shaft assembly and a fourth rotating shaft assembly; the power assembly is connected to the first rotating shaft assembly and the second rotating shaft assembly respectively through a synchronous belt, and the first rotating shaft assembly and the second rotating shaft assembly are further provided with a synchronous wheel assembly respectively, the first rotating shaft assembly moves synchronously with the third rotating shaft assembly through the synchronous wheel assembly, and the second rotating shaft assembly moves synchronously with the fourth rotating shaft assembly through the synchronous wheel assembly; The rotary double door includes a first door panel, a second door panel, a third door panel and a fourth door panel; the rotation axis of the first door panel is connected to the first rotation axis assembly, the rotation axis of the second door panel is connected to the second rotation axis assembly, the rotation axis of the third door panel is connected to the third rotation axis assembly, and the rotation axis of the fourth door panel is connected to the fourth rotation axis assembly; The synchronous wheel assembly between the first rotating shaft and the third rotating shaft rotates synchronously via a synchronous belt; The synchronous wheel assembly between the second rotating shaft and the fourth rotating shaft performs synchronous rotation motion via a synchronous belt.

2. A channel type radio frequency door according to claim 1, characterized in that: The circularly polarized antenna assembly includes a plurality of circularly polarized antenna units; the circularly polarized antenna units are evenly distributed on both sides of the rack.

3. A channel type radio frequency door as claimed in claim 2, characterized in that: Each of the circularly polarized antenna units can be controlled and adjusted along the horizontal axis, vertical axis and longitudinal axis.

4. A channel type radio frequency door according to claim 1, characterized in that: The frame and the fixing plate are both provided with a metal outer cover, and the first door panel, the second door panel, the third door panel and the fourth door panel are all shielded by transparent materials.

5. A channel type radio frequency door according to claim 1, characterized in that: It also includes a first touch screen component, a second touch screen component, a barcode scanning component and a display screen; The first touch screen assembly is arranged at the second support rod, the second touch screen assembly is arranged at the fourth support rod, the barcode scanning assembly is arranged on the side of the frame, and the display screen is arranged on the fixing plate.

6. A control method for a channel type radio frequency door, characterized in that: The method is implemented by the channel-type radio frequency gate according to any one of claims 1 to 5, comprising: In response to a user placing goods in the passage-type radio frequency door, controlling the rotary double-door to close; After the rotary double-door is closed, the cargo placed in the channel-type radio frequency door is scanned to determine the cargo location and cargo quantity; According to the cargo position, maintaining the orientation of the circularly polarized antenna assembly corresponding to the cargo position unchanged, and controlling the circularly polarized antenna assemblies at other positions to face the cargo position; After the circular polarization antenna assembly is controlled, the labels of the goods are scanned according to the quantity of the goods; After all the labels of the goods have been scanned, all the circularly polarized antenna components are controlled to restore their initial orientations, and the rotary double doors are controlled to open.

7. A control method for a channel type radio frequency door according to claim 6, characterized in that: According to the cargo position, the orientation of the circularly polarized antenna assembly corresponding to the cargo position is kept unchanged, and the circularly polarized antenna assemblies at other positions are controlled to face the cargo position, specifically: Determining the orientation of the circularly polarized antenna according to the cargo position; wherein the circularly polarized antenna assembly includes a first antenna assembly, a second antenna assembly, and a third antenna assembly, the initial orientations of the first antenna assembly, the second antenna assembly, and the third antenna assembly are a first position, a second position, and a third position, respectively, and the cargo position includes: covering only the first position, covering the first position and the second position, or covering all positions; When the cargo position only covers the first position, the orientation of the first antenna assembly is maintained unchanged, and the second antenna assembly and the third antenna assembly are controlled to move toward the first position; When the cargo position covers the first position and the second position, the orientations of the first antenna assembly and the second antenna assembly are kept unchanged, and the third antenna assembly is controlled to move toward the first position; When the cargo position covers all positions, the orientations of the first antenna assembly, the second antenna assembly, and the third antenna assembly are kept unchanged.

8. A tag recognition method, characterized in that: The method is implemented by the channel-type radio frequency gate according to any one of claims 1 to 5, comprising: Sending electromagnetic waves of a preset frequency through the circularly polarized antenna assembly so that when the cargo tag enters the working range of the circularly polarized antenna assembly, the cargo tag can be activated and send the cargo information stored therein; The cargo information is received, and the cargo information is demodulated and decoded, so that the processed cargo information is displayed, thereby completing the identification of the cargo label.

9. A tag recognition method according to claim 8, characterized in that: Before displaying the processed cargo information, the method further includes: Collect users' facial recognition data and fingerprint recognition data; Determining whether the user is a legitimate user based on the face recognition data and fingerprint recognition data; If yes, the processed cargo information will be displayed; If not, refuse to display the processed cargo information.

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