Independent luggage carrying and sorting system for civil airport
By introducing a vertically laid-out and closed-loop sorting loop into the airport baggage handling system, combined with RFID binding and PLC control, the spatial limitations and safety hazards of the airport baggage handling system have been solved, achieving efficient and safe baggage sorting and improving the airport's service level.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-04-03
AI Technical Summary
When faced with the expansion of passenger volume and peak growth, the baggage handling system of civil airports faces prominent problems of space constraints and security risks, and existing technologies are unable to handle large amounts of baggage efficiently and safely.
The automated system, which employs vertically arranged check-in counters, a closed-loop sorting line, a high-speed conveyor with stepped acceleration and deceleration, RFID binding, and PLC control, combined with manual intervention, achieves precise matching and efficient sorting of luggage and pallets.
It improved baggage handling efficiency, reduced footprint, lowered missorting rates, ensured the stability and safety of high-speed transportation, and enhanced airport service levels and passenger satisfaction.
Smart Images

Figure CN224072710U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of airport baggage management technology, and in particular to an independent baggage transport and sorting system for civil airports. Background Technology
[0002] With people's ever-growing needs for a better life, continuous improvement in economic levels, and sustained increases in social productivity, air travel has become a widely chosen mode of transportation. On the one hand, the number of air travelers is constantly expanding; on the other hand, peak travel times are also increasing, especially during holidays. Consequently, more and more civil airports are reaching the ten-million-passenger mark to cope with the expansion of passenger numbers and the growth in peak travel times. At the same time, the number of checked baggage at airports is also continuously increasing, placing higher demands on the processing capacity, reliability, and security of airport baggage handling systems.
[0003] As an indispensable part of civil airport operations, the baggage handling system directly impacts the overall efficiency of airport operations. Designs spanning multiple terminals or satellite terminals require airport baggage systems with higher handling capabilities; therefore, independent baggage handling systems are widely used, their advantage being the effective improvement of airport service levels.
[0004] To address the issue of passengers checking in across terminals or satellite terminals, the speed of equipment is often increased to improve baggage handling efficiency, with some airports even reaching 10m / s. While this improves efficiency, it also poses certain safety risks. Furthermore, the baggage system needs to allocate ample space for the early arrival baggage subsystem, but airport building space is limited, and the technology of the early arrival subsystem is relatively outdated.
[0005] For example, patent CN210253180U proposes a method of setting up multiple shelves and classifying each shelf according to the length of time the luggage is stored, dividing them into storage areas for different time periods of checked baggage; however, this storage method does not fundamentally solve the problem of space constraints at airports and does not have sufficient flexibility in storage and retrieval. Utility Model Content
[0006] In response to the shortcomings of the existing production technology, the applicant provides a civil airport baggage independent transport and sorting system, which can safely and efficiently complete baggage sorting, improve the airport's service level, and enhance passenger satisfaction when traveling by air.
[0007] The technical solution adopted by this utility model is as follows: A civil airport baggage independent transport and sorting system, comprising:
[0008] The check-in counters are set perpendicular to the belt conveyor line and are used for baggage weighing, barcode affixing, and security screening. They are also connected to a centralized collection conveyor.
[0009] The private room is connected to the baggage conveyor line via a horizontal divider for manual inspection of suspicious baggage;
[0010] The barcode reader is installed above the baggage conveyor line to read baggage barcodes and communicate with the PLC.
[0011] The loading section includes upper and lower levels of baggage conveyor lines and pallet conveyor lines, which use RFID to bind baggage to empty pallets.
[0012] The manual sorting station is vertically connected to the pallet conveyor line via a 90° transplanting device to handle abnormally loaded luggage.
[0013] The high-speed conveyor section connects to the standard speed conveyor line at the front and rear ends through a stepped acceleration and deceleration method, enabling long-distance cross-regional conveying.
[0014] The sorting loop connects to the high-speed conveyor section, the replenishment and maintenance station, the early arrival subsystem, the unloading equipment and the empty pallet storage area, and supports pallet return and secondary sorting.
[0015] The replenishment and repair station is connected to the sorting loop line and is used for manual replenishment and pallet repair.
[0016] The early arrival subsystem has its entrance and exit directly connected to the sorting loop, and includes a warehouse management system and a warehouse control system;
[0017] The unloading equipment separates luggage from pallets using a tilting motion and connects them to the sorting loop line;
[0018] Palletizing and depalletizing equipment are located at the entrance and exit of the empty pallet storage area, respectively, and are used for pallet palletizing and depalletizing.
[0019] The empty pallet storage area connects to the sorting loop and stores and supplies empty pallets to the loading section.
[0020] In one embodiment, a control system is also included; the control system includes a high-level control system and a low-level control system;
[0021] The high-level control system includes a SCADA system and a CCTV system, which are used to interact with the baggage management back-end system, store sorting information, and manage the early arrival subsystem.
[0022] The underlying control system uses a programmable logic controller (PLC) as the core control unit and connects to various subsystems and stand-alone devices via a fieldbus.
[0023] The programmable logic controller (PLC) is also connected to the underlying execution device via an industrial bus;
[0024] The underlying execution equipment includes motors, frequency converters, and sensors on the conveyor, used to perform baggage transfer, storage, and sorting operations.
[0025] In one embodiment, the early arrival subsystem includes a warehouse management system and a warehouse control system, which adopts the principle of proximity storage and interacts with the high-level control system via industrial Ethernet.
[0026] In one embodiment, the SCADA system collects system status and controls operation in real time, while the CCTV system monitors the on-site situation in real time and connects to a manual query interface.
[0027] In one embodiment, the front and rear ends of the high-speed conveyor section are connected to the standard speed conveyor line via a stepped acceleration and deceleration method, and pallet collisions are avoided based on a safety distance setting.
[0028] In one embodiment, the sorting loop is connected to a high-speed conveyor section, a replenishment and repair station, an early arrival subsystem, and unloading equipment to support secondary sorting of return pallets and recycling of empty pallets.
[0029] In one embodiment, the unloading device reads the tray number via RFID to obtain luggage information, and tilts the tray at an angle to separate the luggage from the tray. After unloading, the detection device feeds back the results to the high-level control system.
[0030] In one embodiment, the empty pallet storage area stores empty pallets by palletizing equipment and supplies individual pallets to the loading section by depalletizing equipment.
[0031] In one embodiment, the manual sorting station receives abnormally loaded luggage via a 90° transfer device, processes it, and then releases it back into the system.
[0032] In one embodiment, the barcode replacement and repair station performs manual barcode replacement when barcode reading fails, performs pallet repair when pallet malfunctions, and then re-introduces the sorting process after completion.
[0033] The beneficial effects of this utility model are as follows:
[0034] This utility model has a compact structure. The vertical layout of the check-in counter and the closed-loop design of the sorting loop reduce the footprint and optimize space. The high-speed conveyor section combines stepped acceleration and deceleration with a safety distance setting to ensure the stability of high-speed conveying, improve cross-regional timeliness, and increase efficiency.
[0035] This utility model also has the following advantages:
[0036] (1) This utility model ensures data continuity through scanning by a code reading device and manual intervention by a code replacement and repair station; the sorting loop supports return for secondary sorting, reducing the missorting rate;
[0037] (2) This utility model has a high degree of automation. From check-in, RFID binding, high-speed transportation to palletizing and depalletizing, each link is seamlessly coordinated with the industrial bus through PLC, realizing efficient automation of the entire baggage handling process and adapting to the needs of large passenger flow at the airport. Attached Figure Description
[0038] Figure 1 This is a schematic diagram of the system layout in one embodiment of the present invention.
[0039] Figure 2 This is a schematic diagram of the system flow in one embodiment of the present invention.
[0040] The components are as follows: 101. Check-in counter; 102. Packing room; 103. Barcode reader; 104. Loading section; 105. Manual sorting station; 106. High-speed conveyor section; 107. Sorting loop line; 108. Barcode replacement and repair station; 109. Early arrival subsystem; 110. Unloading equipment; 111. Palletizing equipment; 112. Empty pallet storage area; 113. Depalletizing equipment. Detailed Implementation
[0041] The specific embodiments of this utility model are described below with reference to the accompanying drawings.
[0042] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.
[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0044] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.
[0045] It should be understood that although the terms "first," "second," etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this invention, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.
[0046] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the components are shown in the drawings only as examples and not necessarily to actual scale.
[0047] like Figure 1 Figure 2 shows a schematic diagram of the structural state of a... according to an embodiment of the present invention; for ease of description, the figure only shows the structure related to the embodiment of the present invention.
[0048] Please see Figure 1 In this embodiment, a civil airport baggage independent transport and sorting system is provided, in which each functional unit works collaboratively through conveyor lines and a control network, specifically including the following structure:
[0049] Check-in counter 101 is set vertically to the belt conveyor line and is used for weighing, affixing barcodes and conducting preliminary security checks on passenger baggage. After check-in, the baggage is transported to the next stage via a centralized collection conveyor. In this embodiment, the vertical layout design of check-in counter 101 reduces the floor space and optimizes space utilization.
[0050] Baggage compartment 102 is connected to the baggage conveyor line via a horizontal divider for manual inspection of baggage with security issues or suspected violations. Inspected baggage is then reintroduced into the conveyor line, ensuring that the handling of suspicious baggage does not affect the main line's efficiency.
[0051] The barcode reader 103 is installed above the baggage conveyor line. It uses optical scanning technology to read baggage barcode information and communicates with the programmable logic controller (PLC) in real time to ensure that baggage data is bound to the system.
[0052] Loading section 104 employs a double-layer conveyor structure, with the upper layer being a baggage conveyor and the lower layer a pallet conveyor. Radio frequency identification (RFID) technology is used to bind empty pallets to baggage, achieving precise matching between baggage and pallets. The bound baggage and pallets then enter the subsequent conveying process synchronously.
[0053] The manual sorting station 105 is vertically connected to the pallet conveyor line via a 90° transfer device. When the RFID binding is abnormal or the luggage is not securely loaded, the pallet is transferred to the manual sorting station 105 via the transfer device, where it is adjusted by staff and then released back into the system.
[0054] The high-speed conveyor section 106 connects to the standard speed conveyor line at the front and rear through a stepped acceleration and deceleration method, enabling long-distance cross-regional conveying; the pallet spacing is set based on a safety distance algorithm to avoid collisions during high-speed operation and ensure conveying stability.
[0055] The sorting loop 107 is designed as a closed loop and is connected to the high-speed conveyor section 106, the replenishment and repair station 108, the early arrival subsystem 109, the unloading equipment 110, and the empty pallet storage area 112. In this embodiment, the sorting loop 107 supports pallet return for secondary sorting, reduces the missorting rate, and recovers empty pallets to the storage area.
[0056] The barcode replacement and repair station 108, connected to the sorting loop line 107, is used to handle luggage with failed barcode readings. After manual barcode replacement by staff, the luggage re-enters the sorting process; at the same time, the station repairs faulty pallets to ensure that the pallets can be reused.
[0057] The early arrival subsystem 109 has its entrance and exit directly connected to the sorting loop 107 and includes dynamic storage racks, a warehouse management system (WMS), and a warehouse control system (WCS). In this embodiment, the early arrival subsystem 109 optimizes space utilization by adopting the principle of proximity storage and interacts with the high-level control system through industrial Ethernet to realize flexible storage and retrieval of early arrival luggage.
[0058] The unloading device 110 separates luggage from the tray through a tilting action; after the RFID reads the tray number, the system obtains the corresponding luggage information, and the tilting mechanism slides the luggage into the designated collection area. After the empty tray is detected and fed back, it enters the sorting loop 107 for recycling.
[0059] Palletizing equipment 111 and depalletizing equipment 113 are located at the entrance of empty pallet storage area 112, where the palletizing equipment 111 stacks and stores the recycled empty pallets; depalletizing equipment 113 is located at the exit of empty pallet storage area 112, where it splits individual empty pallets as needed and supplies them to loading section 104, ensuring continuous pallet supply.
[0060] The empty pallet storage area 112 is connected to the sorting loop 107 and is used to store empty pallets after palletizing. The empty pallets are dynamically supplied to the loading section 104 through the depalletizing equipment 113.
[0061] Please refer to further information. Figure 2 The system flow of this utility model is as follows:
[0062] The high-level control system includes a SCADA system and a CCTV system. The SCADA system collects the real-time operating status of each subsystem (such as conveyor speed, pallet position, and equipment fault signals) and centrally monitors and schedules them through a human-machine interface (HMI). The CCTV system deploys cameras to monitor key nodes in real time (such as the opening room 102 and the manual sorting station 105). The video stream is linked with the manual query interface to assist in handling anomalies.
[0063] For example, the high-level system can interact with the baggage management back-end system through the OPC protocol to realize the storage optimization of sorting data and early arrival subsystem 109.
[0064] The underlying control system uses a PLC as the core control unit and connects to the code reader 103, motors, frequency converters, sensors and other actuators via a fieldbus.
[0065] For example, the PLC can control the start and stop of the conveyor line, speed adjustment and sorting logic according to SCADA instructions, and achieve rapid response with the underlying equipment through the industrial bus.
[0066] In practice, the working process of this utility model is as follows:
[0067] After passengers check in their luggage at check-in counter 101, the luggage is conveyed to baggage opening room 102 for security check via conveyor belt.
[0068] Barcode binding and loading: The baggage is bound to an empty pallet in the loading section 104 by scanning the barcode with the barcode reader 103 and then enters the high-speed conveyor section 106.
[0069] Sorting and storage: Sorting loop 107 sorts baggage to the corresponding exit according to the destination, and early baggage is temporarily stored in early arrival subsystem 109.
[0070] Unloading and recycling: Unloading equipment 110 separates luggage from pallets; empty pallets are stored in empty pallet storage area 112 via palletizing equipment 111; and depalletizing equipment 113 supplies empty pallets as needed.
[0071] Abnormal handling: Abnormal baggage will be processed by manual sorting station 105 or code replacement and repair station 108 and then re-enter the system.
[0072] This utility model has a reasonable structure and high automation efficiency. The vertical layout of the check-in counter 101 and the closed-loop design of the sorting loop 107 reduce the footprint and optimize the space utilization rate. The stepped acceleration and deceleration of the high-speed conveyor section 106 combined with the safety distance setting ensures the stability of high-speed conveying, improves the timeliness of cross-regional transport, and enhances work efficiency.
[0073] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0074] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A baggage independent carrier sorting system for a civil airport, characterized in that, The system comprises: a check-in counter arranged perpendicularly to the belt conveyor line for luggage weighing, bar code pasting and security check, and connected to the centralized collection conveyor; a bag opening room connected to the luggage conveyor line through a horizontal diverter for manual inspection of suspicious luggage; a code reading device installed above the luggage conveyor line for reading the luggage bar code and communicating with the PLC; a loading section comprising upper and lower layers of luggage conveyor lines and tray conveyor lines, and binding luggage with empty trays through RFID; a manual sorting station connected perpendicularly to the tray conveyor line through a 90° transplanting device for processing abnormally loaded luggage; a high-speed conveying section connected to the standard speed conveying line at the front end and the rear end through a stepped acceleration and deceleration mode to realize cross-regional long-distance conveying; a sorting loop connected to the high-speed conveying section, the code supplementing and repairing station, the early arrival subsystem, the unloading device and the empty tray storage area to support tray backflow and secondary sorting; the code supplementing and repairing station connected to the sorting loop for manual code supplementing and tray repairing; the early arrival subsystem with the inlet and outlet directly connected to the sorting loop, comprising a warehouse management system and a warehouse control system; the unloading device separating luggage from trays through an inclined action and connected to the sorting loop; a palletizing device and a depalletizing device respectively located at the inlet and outlet of the empty tray storage area for tray palletizing and splitting; the empty tray storage area connected to the sorting loop for storing and supplying empty trays to the loading section.
2. The baggage independent carrier sorting system for a civil airport according to claim 1, characterized in that, The system further comprises a control system; the control system comprises a high-level control system and a bottom-level control system; the high-level control system comprises a SCADA system and a CCTV system for interacting with the luggage management background system, storing sorting information and managing the early arrival subsystem; the bottom-level control system takes a programmable logic controller (PLC) as the core control unit, connects each subsystem and single device through a field bus, and is connected to the bottom-level execution device through an industrial bus; the programmable logic controller (PLC) is further connected to the bottom-level execution device through an industrial bus; the bottom-level execution device comprises motors, frequency converters and sensors on the conveyor for executing luggage transmission, storage and sorting operations.
3. The baggage independent carrier sorting system for a civil airport according to claim 2, characterized in that, The early arrival subsystem comprises a warehouse management system and a warehouse control system, adopts the principle of nearby storage and interacts with the high-level control system through an industrial Ethernet.
4. The baggage independent carrier sorting system for a civil airport according to claim 2, characterized in that, The SCADA system collects system states in real time and controls operation, and the CCTV system monitors the field conditions in real time and is connected to the manual query interface.
5. The baggage independent carrier sorting system for a civil airport according to claim 1, characterized in that, The front end and the rear end of the high-speed conveying section are connected to the standard speed conveying line through a stepped acceleration and deceleration mode, and based on a safety distance setting to avoid tray collision.
6. The baggage independent carrier sorting system for a civil airport according to claim 1, characterized in that, The sorting loop is connected to the high-speed conveying section, the code supplementing and repairing station, the early arrival subsystem and the unloading device to support backflow tray secondary sorting and empty tray recycling.
7. The baggage independent carrier sorting system for a civil airport according to claim 1, characterized in that, The unloading device reads the tray number through RFID to obtain luggage information, and separates luggage from trays through an inclined angle, and the feedback result of the detection device after unloading is fed back to the high-level control system.
8. The baggage independent carrier sorting system for a civil airport according to claim 1, characterized in that, The empty tray storage area stores empty trays through the palletizing device, and splits single trays through the depalletizing device to supply to the loading section.
9. The baggage independent carrier sorting system for a civil airport according to claim 1, characterized in that, The manual sorting station receives abnormally loaded luggage through the 90° transplanting device, and releases the processed luggage to the system again.
10. The baggage individual carrying sorting system for civil airport according to claim 1, characterized in that, The complementary maintenance station carries out manual complementary operation when the bar code reading fails, and carries out tray maintenance when the tray fails, and then reintroduces the sorting process.
Citation Information
Patent Citations
Airport checked baggage handling system
CN210253180U