Subway riding commodity purchase and departure self-pickup data control system

Abstract

The invention relates to a subway riding commodity purchasing and outbound self-pick-up data control system, and discloses a subway riding commodity purchasing and outbound self-pick-up data control system which realizes line binding and code scanning entrance through a subway handle device, performs commodity display through a sales exhibition and festival operation module, and completes locking and self-pick-up through a remote cancel-after-verification and pick-up module. The data control system is convenient for passengers to select and purchase goods in the process of taking the goods and take the goods conveniently when the passengers leave the station. The system is characterized by comprising a subway handle device, a local propaganda module, a sales exhibition module, a festival operation module, an extraction module and a background operation safety module, the sales exhibition module establishes information interaction with the festival operation module and the background operation safety module, and the sales exhibition module establishes information interaction with the extraction module. Information interaction is established between the extraction module and the background operation security module, and information interaction is established between the background operation security module and the local propaganda module and the festival operation module.

Description

Technical Field

[0001] This invention relates to a data control system for subway passenger merchandise selection and self-pickup upon exit. This system allows passengers to scan QR codes to browse attraction information, select local specialties and cultural and creative products during their journey, and conveniently pick up their purchases at the exit. It belongs to the field of smart rail transit services technology, and specifically relates to a data control system that uses subway handrails to link the line to the QR code scanning entrance, displays merchandise through a sales and holiday operation module, and completes locking and self-pickup through a remote verification and retrieval module. This system facilitates passenger selection during their journey and convenient pickup upon exit. Background Technology

[0002] With the continuous development of urban rail transit, subways have become an important mode of daily travel for urban residents and tourists. Existing subway cars are usually only equipped with handrails, route maps, and advertising boards. Some lines have set up QR codes or electronic screens in the cars for commercial promotion, but these are mostly one-way information displays and lack effective interaction with passengers. Currently, urban cultural and tourism products and local specialties are mainly sold through scenic area shops, specialty stores in shopping districts, or online e-commerce channels. For tourists, if they want to buy local specialties, they often need to set aside time before the end of their trip to go to a designated location, or place an order through an e-commerce platform and wait for express delivery. This involves problems such as long waiting time, inconvenient pickup, and delivery delays, making it difficult to obtain the goods in time before leaving the city. Although existing subway advertisements can guide passengers to access web pages or online stores through QR codes, they fail to link with specific lines, carriages, and exits, and cannot provide accurate recommendations for attractions along the line. They also fail to coordinate with the pickup facilities at subway station entrances and exits. Even if passengers complete an order, there is no guarantee that they can pick up their goods smoothly when exiting the station, which can easily lead to stockouts, unreasonable distribution of pickup points, or congested queues for pickup. During holidays or large-scale local events, passenger flow increases significantly, and the demand for popular cultural and creative products and specialties is concentrated. The existing sales methods lack the ability to dynamically allocate and lock in inventory in advance, which can easily lead to some products selling out and not being replenished in time, affecting the tourist's purchasing experience and the city's cultural and tourism image.

[0003] Publication No. CN217789781U discloses a convenient service device based on idle space in a subway station, relating to the field of convenient service devices. Applied to subway stations built underground, it includes: a camera unit installed above ground at the corresponding station for real-time capture of weather changes outside the station; a display unit connected to the camera unit and installed within the corresponding station for displaying the images captured by the camera unit; the camera unit and display unit are respectively a camera and a monitor, and the camera and monitor are also connected to a storage device; it also includes an automatic vending machine for selling umbrellas; placing the monitor and the vending machine in the same location within the station utilizes idle space, thus effectively making use of the idle space, making space use and planning more rational, and improving passenger convenience. Furthermore, after checking the outside weather, passengers can purchase the goods they need as soon as possible. However, the aforementioned subway vending machines only provide on-site immediate sales and lack online selection, remote ordering, inventory locking, and self-pickup upon exiting the station. Passengers cannot place orders or reserve pickups in advance during their journey, which cannot solve the potential stock shortage problem during peak periods, nor can it provide convenient pickup for passengers after their journey ends. Summary of the Invention

[0004] To improve the above situation, the present invention provides a data control system for subway passenger goods selection and self-pickup upon exit. This system enables passengers to select goods during their journey and conveniently pick them up upon exiting the station by using subway handrail devices to bind the entry point to the line, displaying goods through a sales and holiday operation module, and completing locking and self-pickup through a remote verification and retrieval module.

[0005] The present invention discloses a data control system for subway passenger goods selection and self-pickup upon exit, which is implemented as follows: The data control system includes a subway handrail device, a local publicity module, a sales display module, a holiday operation module, a pickup module, and a back-end operation security module. Its features include: the exhibition and sales module establishing information interaction with the festival operation module and the back-end operation security module; the exhibition and sales module establishing information interaction with the extraction module; the extraction module establishing information interaction with the back-end operation security module; and the back-end operation security module establishing information interaction with the local publicity module and the festival operation module. The subway handle device includes a first fixing component, a second fixing component, a threaded hole, a connecting screw, a hand-held cavity, a limiting groove, a QR code display area, a connecting ring, anti-slip posts, and auxiliary fixing teeth. The first and second fixing members have a disc-shaped structure, their planes are in contact, and their central axes coincide. Preferably, the first and second fasteners are made of high-strength engineering plastic. Both the first and second fixing members have multiple threaded holes, and the threaded holes on the first and second fixing members correspond one-to-one. The multiple threaded holes are arranged at equal intervals along the circumference of the first fixing member. Preferably, the threaded hole is located near the side of the first fixing member. Preferably, the threaded hole on the first fixing member extends from one plane of the first fixing member to another plane, and the threaded hole on the second fixing member extends from the plane of the second fixing member that contacts the first fixing member to another plane, and its axial width is smaller than the axial width of the second fixing member. The connecting screws are threadedly connected to the first and second fixing components through threaded holes, with each connecting screw corresponding one-to-one with the threaded hole on the first fixing component. Both the first and second fixing members have hand-held cavities near their bottom ends. The two surfaces of the first and second fixing members that are in contact with each other have limiting grooves, and the width of the limiting grooves is larger in the middle and near the center of the first fixing member along the central axis of the first fixing member. The first and second fasteners have QR code display areas on their other two surfaces. Preferably, the QR code display area is designed as a shallow groove, formed by laser engraving, and its surface is coated with a wear-resistant coating. The side of the limiting groove where the width is smaller is provided with auxiliary fixing teeth. Preferably, both the first and second fixing members have auxiliary fixing teeth on their limiting grooves, and the auxiliary fixing teeth on the first and second fixing members have different heights. Each end of the connecting ring is fitted with an anti-slip post, and the two anti-slip posts are positioned at the wider part of the limiting groove. The local promotion module is used to display information about the city's cultural and tourism resources, including a map showing the distribution of city attractions, introductions to the attractions, opening hours, ticket prices, and reservation requirements. Preferably, the local information module includes a link between the subway line and attractions. Passengers can scan the QR code on the subway handrail device to view information on attractions along the current line and recommended itineraries. Preferably, the information in the local promotion module is updated regularly and includes a version number to ensure that the attraction data is accurate and timely. Preferably, the local promotion module supports multilingual display and categorized browsing, enhancing the user experience for tourists from other regions. The local products sold within the module include product price information, and each route's QR code allows users to purchase items from this module. The sales module is used to sell local specialties, cultural and creative products, and route-specific souvenirs, including a local specialty sub-module, a scenic spot cultural and creative product sub-module, and a remote verification sub-module. The local specialty products sub-module provides local specialties applicable throughout the city. Purchases can be made via QR codes on any route. Product information includes name, specifications, unit price, inventory, and applicable pickup stations. The aforementioned cultural and creative product sub-modules are only available for the current route. Passengers can only purchase route souvenirs and cultural and creative products from attractions along the route after entering through the QR code of this route, thus creating a unique route experience. The remote verification submodule allows passengers to lock in their orders and counter locations in advance, confirming the pickup two hours prior. The system then generates a unique pickup code and locks the inventory to prevent stockouts or accidental pickup by others. Preferably, the remote verification submodule is configured with a timeout recovery policy. If the goods are not picked up within the timeout period, the system unlocks the lock and triggers a partial refund or inventory recovery to ensure the utilization rate of the counter space. The holiday operation module is used to list limited-edition holiday products during statutory holidays or local festivals. The festival operation module is automatically activated according to preset calendar rules, listing festival-themed cultural and creative products and limited-edition gift boxes in the exhibition and sales module and displaying them with priority. Preferably, the holiday operation module restricts the time for purchasing, redemption, and pickup, allowing transactions and pickups to be completed only during the holiday period to avoid pre-holiday stockpiling or invalid pickups after the holiday. Preferably, the holiday operation module has an inventory priority strategy, which prioritizes the allocation of holiday goods to high-traffic routes and hub stations to ensure a better shopping experience for passengers during the holiday period. The extraction module includes an instant extraction cabinet and a dedicated locking cabinet. The instant pickup lockers are located at the exits of various subway stations. After arriving, passengers can scan a code to verify their order, and the system will allocate an available locker in real time and unlock it to retrieve their goods. The lockers support the pickup of local specialties and cultural and creative products from attractions along the route. These dedicated lockers are deployed in urban hubs, airports, or large transfer stations. After a passenger completes remote verification, the system locks the locker location, and only that passenger can open the locker with a unique pickup code. Preferably, the dedicated locker has an automatic return and refund mechanism for overdue items. If the goods are not picked up within three days, a partial refund will be automatically issued and the goods will be returned to the warehouse to prevent long-term occupation of the locker space. The back-end operation security module is used to manage QR code mapping, inventory allocation, counter scheduling, order status, and risk control. The backend security module verifies the dynamic signature of the QR code to prevent forgery or reuse. Preferably, the back-end operation security module has customer flow forecasting and replenishment strategies, which calculate the replenishment demand for a future period based on historical sales and real-time customer flow forecasts, and generate a replenishment plan in advance. Preferably, the back-end operation security module records full-link operation logs, audits remote verification, cabinet opening events, and abnormal pickup behaviors, triggers alarms and can temporarily freeze cabinets when an anomaly is detected. Preferably, the back-end operation security module supports multi-site linkage to ensure the consistency of scheduling for cross-line orders and transfer pickups. Beneficial effects

[0006] First, the subway car handrails are integrated with the QR code display area to achieve line-level binding and information entry integration, thereby improving the accuracy and accessibility of cultural and tourism information dissemination.

[0007] Second, a complete closed loop from displaying attraction information, selecting goods, remote verification to self-pickup at the station simplifies the purchase process, shortens the waiting time for passengers to pick up their goods, and improves travel convenience.

[0008] Third, it can ensure inventory in advance, avoid stockouts and mis-picking during holidays or peak periods, and improve the success rate and satisfaction of passengers picking up their goods.

[0009] Fourth, it supports holiday-themed operations and dynamic inventory scheduling, which can meet the consumption demand during peak periods and in specific scenarios, ensure inventory supply, and enhance the added value of subway operations. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the subway handrail device of the present invention; Figure 2 This is a schematic diagram of the subway handrail device of the present invention; Figure 3 This is a three-dimensional structural diagram of the subway handrail device of the present invention. Attached Figure

[0011] The components are: first fixing part (1), second fixing part (2), connecting ring (3), QR code display area (4), connecting screw (5), threaded hole (6), hand-held cavity (7), anti-slip column (8), limiting groove (9), and auxiliary fixing tooth (10). Detailed Implementation Example 1

[0012] The present invention discloses a data control system for subway passenger merchandise selection and self-pickup upon exit, which is implemented as follows: The data control system includes a subway handrail device, a local publicity module, a sales module, a holiday operation module, and a pickup module. Its features include: the exhibition and sales module establishing information interaction with the festival operation module and the back-end operation security module; the exhibition and sales module establishing information interaction with the extraction module; the extraction module establishing information interaction with the back-end operation security module; and the back-end operation security module establishing information interaction with the local publicity module and the festival operation module. The subway handle device includes a first fixing part (1), a second fixing part (2), a threaded hole (6), a connecting screw (5), a hand-held cavity (7), a limiting groove (9), a QR code display area (4), a connecting ring (3), an anti-slip post (8), and auxiliary fixing teeth (10). The first fixing member (1) and the second fixing member (2) have a disc-shaped structure. The planes of the first fixing member (1) and the second fixing member (2) are in contact with each other, and their central axes coincide. Preferably, the first fastener (1) and the second fastener (2) are made of high-strength engineering plastic. Both the first fixing member (1) and the second fixing member (2) have multiple threaded holes (6), and the threaded holes (6) on the first fixing member (1) and the second fixing member (2) correspond one-to-one. The multiple threaded holes (6) are arranged at equal intervals along the circumference of the first fixing member (1). Preferably, the threaded hole (6) is located near the side of the first fixing member (1). Preferably, the threaded hole (6) on the first fixing member (1) extends from one plane of the first fixing member (1) to another plane, and the threaded hole (6) on the second fixing member (2) extends from the plane of the second fixing member (2) that contacts the first fixing member (1) to another plane, and its axial width is smaller than the axial width of the second fixing member (2). The connecting screw (5) is threadedly connected to the first fixing member (1) and the second fixing member (2) through the threaded hole (6). The connecting screw (5) corresponds one-to-one with the threaded hole (6) on the first fixing member (1). The first fixing member (1) and the second fixing member (2) have a hand-held cavity (7) near the bottom. The two surfaces of the first fixing member (1) and the second fixing member (2) that are in contact with each other have a limiting groove (9), and the width of the limiting groove (9) in the middle and near the center of the first fixing member (1) is relatively large along the central axis of the first fixing member (1). The other two planes of the first fastener (1) and the second fastener (2) are provided with QR code display areas (4). Preferably, the QR code display area (4) is designed as a shallow groove, formed by laser engraving, and its surface is coated with a wear-resistant coating. The limiting groove (9) has auxiliary fixing teeth (10) on the side where the width is smaller. Preferably, both the first fixing member (1) and the second fixing member (2) have auxiliary fixing teeth (10) on their limiting grooves (9), and the auxiliary fixing teeth (10) on the first fixing member (1) and the second fixing member (2) have different heights. A non-slip post (8) is fitted at each end of the connecting ring (3), and the two non-slip posts (8) are respectively placed at the wider part of the limiting groove (9). The local promotion module is used to display information about the city's cultural and tourism resources, including a map showing the distribution of city attractions, introductions to the attractions, opening hours, ticket prices, and reservation requirements. Preferably, the local information module includes a link between the subway line and attractions. Passengers can scan the QR code on the subway handrail device to view information on attractions along the current line and recommended itineraries. Preferably, the information in the local promotion module is updated regularly and includes a version number to ensure that the attraction data is accurate and timely. Preferably, the local promotion module supports multilingual display and categorized browsing, enhancing the user experience for tourists from other regions. The local products sold within the module include product price information, and each route's QR code allows users to purchase items from this module. The sales module is used to sell local specialties, cultural and creative products, and route-specific souvenirs, including a local specialty sub-module, a scenic spot cultural and creative product sub-module, and a remote verification sub-module. The local specialty products sub-module provides local specialties applicable throughout the city. Purchases can be made via QR codes on any route. Product information includes name, specifications, unit price, inventory, and applicable pickup stations. The aforementioned cultural and creative product sub-modules are only available for the current route. Passengers can only purchase route souvenirs and cultural and creative products from attractions along the route after entering through the QR code of this route, thus creating a unique route experience. The remote verification submodule allows passengers to lock in their orders and counter locations in advance, confirming the pickup two hours prior. The system then generates a unique pickup code and locks the inventory to prevent stockouts or accidental pickup by others. Preferably, the remote verification submodule is configured with a timeout recovery policy. If the goods are not picked up within the timeout period, the system unlocks the lock and triggers a partial refund or inventory recovery to ensure the utilization rate of the counter space. The holiday operation module is used to list limited-edition holiday products during statutory holidays or local festivals. The festival operation module is automatically activated according to preset calendar rules, listing festival-themed cultural and creative products and limited-edition gift boxes in the exhibition and sales module and displaying them with priority. Preferably, the holiday operation module restricts the time for purchasing, redemption, and pickup, allowing transactions and pickups to be completed only during the holiday period to avoid pre-holiday stockpiling or invalid pickups after the holiday. Preferably, the holiday operation module has an inventory priority strategy, which prioritizes the allocation of holiday goods to high-traffic routes and hub stations to ensure a better shopping experience for passengers during the holiday period. The extraction module includes an instant extraction cabinet and a dedicated locking cabinet. The instant pickup lockers are located at the exits of various subway stations. After arriving, passengers can scan a code to verify their order, and the system will allocate an available locker in real time and unlock it to retrieve their goods. The lockers support the pickup of local specialties and cultural and creative products from attractions along the route. These dedicated lockers are deployed in urban hubs, airports, or large transfer stations. After a passenger completes remote verification, the system locks the locker location, and only that passenger can open the locker with a unique pickup code. Preferably, the dedicated locker has an automatic return and refund mechanism for overdue items. If the goods are not picked up within three days, a partial refund will be automatically issued and the goods will be returned to the warehouse to prevent long-term occupation of the locker space. The back-end operation security module is used to manage QR code mapping, inventory allocation, counter scheduling, order status, and risk control. The backend security module verifies the dynamic signature of the QR code to prevent forgery or reuse. Preferably, the back-end operation security module has customer flow forecasting and replenishment strategies, which calculate the replenishment demand for a future period based on historical sales and real-time customer flow forecasts, and generate a replenishment plan in advance. Preferably, the back-end operation security module records full-link operation logs, audits remote verification, cabinet opening events, and abnormal pickup behaviors, triggers alarms and can temporarily freeze cabinets when an anomaly is detected. Preferably, the back-end operation security module supports multi-site linkage to ensure consistent scheduling of cross-line orders and transfer pickups. When using it, first select the QR code display area (4) corresponding to each subway line and install it. The installation steps are as follows: suspend the middle of the connecting ring (3) on the subway crossbar, align the anti-slip posts (8) at both ends of the connecting ring (3) with the two widest points of the upper limit groove (9) of the first fixing part (1), press the anti-slip posts (8) into the limit groove (9) to make them fully embedded, then align the second fixing part (2) with the first fixing part (1), and fasten the two fixing parts along the threaded hole (6) with the connecting screw (5) so that the two ends of the connecting ring (3) are clamped and locked in the limit groove (9) by the first fixing part (1) and the second fixing part (2), and cooperate with the auxiliary fixing teeth (10) to achieve anti-slip and anti-fall-off, thereby completing the stable installation of the subway handle device. After the device is installed, passengers can directly scan the QR code display area (4) on the subway handle while riding the subway, and the system will display the current city's attractions. The system displays information such as attraction details, opening hours, and reservation requirements. Passengers can purchase local specialty products in the local products sub-module or exclusive cultural and creative products and souvenirs for this subway line in the attraction cultural and creative products sub-module. After completing their purchase, passengers can confirm their order through the remote verification sub-module, select their desired pickup point and time slot, and the system will lock the inventory and generate a unique pickup code to ensure that the goods are available upon arrival at the station. Passengers can also choose to perform instant verification upon arrival at the pickup point, and the system will allocate a locker and unlock it in real time for pickup. When passengers finish their journey and arrive at the station or transportation hub, they only need to scan the code at the corresponding instant pickup locker or exclusive locker to complete the pickup and take away local specialty products or attraction souvenirs, avoiding the inconvenience of carrying them during the journey. During holidays, the holiday operation module automatically puts on limited-edition holiday products, which passengers can purchase directly through QR codes along the line and pick up on the holiday day, enhancing the holiday experience and the convenience of cultural and tourism consumption. The QR code display area (4) is designed as a shallow groove, formed by laser engraving, and coated with a wear-resistant coating. This design can prevent the QR code from being covered or damaged at will, ensuring that the QR code is clear and identifiable for a long time, and improving security and durability.

[0013] The limiting groove (9) is provided with auxiliary fixing teeth (10), and the auxiliary fixing teeth (10) on the first fixing member (1) and the second fixing member (2) are designed with different heights. This can further improve the biting strength between the connecting ring (3) and the fixing member after assembly, prevent the subway handle device from loosening during train vibration, and improve the installation firmness.

[0014] The remote verification submodule allows passengers to lock in their orders and counters in advance and confirm them two hours before pickup. The system generates a unique pickup code and locks in inventory, which can avoid stockouts or accidental pickups during peak periods or holidays, ensuring that passengers have goods to pick up upon arrival and improving user experience.

[0015] The festival operation module is automatically activated according to preset calendar rules. The design of listing festival cultural and creative products and limited gift boxes on the exhibition and sales module and giving them priority display can realize the automatic replenishment and accurate recommendation of festival products, create a festive atmosphere and improve the sales conversion rate of cultural and tourism products.

[0016] The dedicated lockers are deployed in urban hubs, airports, or large transfer stations, and are designed with automatic return and refund mechanisms for overdue orders. This ensures that remotely verified orders are stored exclusively, reducing the risk of locker space being occupied, while improving locker turnover and inventory utilization.

[0017] The back-end operation security module has customer flow forecasting and replenishment strategies. Based on historical sales and real-time customer flow forecasts, it calculates the replenishment demand for a future period and generates a replenishment plan in advance. This design enables dynamic allocation of inventory, reduces the stockout rate of popular products, and improves the overall operating efficiency of the system.

[0018] The goal is to enable passengers to scan QR codes to access subway lines via handrail devices, display products through sales and holiday operation modules, and lock and pick up their goods through remote verification and retrieval modules, making it convenient for passengers to purchase items during their journey and pick them up easily upon exiting the station.

[0019] It should be noted that, unless otherwise explicitly specified and limited, the terms "placed," "connected," and "linked" should be interpreted broadly. For example, they can refer to fixed connections such as folded edges, rivets, pins, adhesives, and welds; detachable connections such as threaded connections, snap-fit ​​connections, and hinges; integral connections; electrical connections; direct connections; or indirect connections via an intermediate medium; or internal connections between two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0020] It should be further noted that, in order to keep the description simple and clear, the above specific embodiments only describe the differences between them and other embodiments. However, those skilled in the art should know that the above specific embodiments are also independent technical solutions.

Claims

1. A data control system for subway passenger merchandise selection and self-pickup upon exit, comprising a subway handrail device, a local promotion module, a sales module, a holiday operation module, a pickup module, and a back-end operation security module, characterized in that, The exhibition and sales module establishes information interaction with the festival operation module and the back-end operation security module. It also establishes information interaction with the extraction module, which in turn interacts with the back-end operation security module. The back-end operation security module interacts with the local publicity module and the festival operation module. The local publicity module displays information about the city's culture and tourism resources, including city attraction maps, attraction descriptions, opening hours, ticket prices, and reservation requirements. The exhibition and sales module sells local specialties, cultural and creative products, and route-specific souvenirs, including sub-modules for local specialties, cultural and creative products at attractions, and remote verification. The festival operation module lists limited-edition products during statutory holidays or local festivals. It automatically activates according to preset calendar rules, listing festival cultural and creative products and limited-edition gift boxes on the exhibition and sales module and prioritizing their display. The extraction module includes instant extraction lockers and dedicated lockers. The back-end operation security module manages QR code mapping, inventory allocation, locker scheduling, order status, and risk control.

2. The data control system for subway passenger merchandise selection and self-pickup upon exiting the station as described in claim 1, characterized in that... The subway handrail device includes a first fixing component, a second fixing component, threaded holes, connecting screws, a hand-held cavity, a limiting groove, a QR code display area, a connecting ring, anti-slip posts, and auxiliary fixing teeth. The first and second fixing components are disc-shaped, with their planes fitting together and their central axes coinciding. Multiple threaded holes are provided on both the first and second fixing components, and these holes correspond one-to-one. The threaded holes are equidistantly arranged along the circumference of the first fixing component. The connecting screw is threadedly connected to the first and second fixing components through the threaded holes, and each threaded hole corresponds one-to-one with the threaded hole on the first fixing component. A hand-held cavity is provided near the bottom of the first and second fixing components. Limiting grooves are provided on the two planes where the first and second fixing components fit together. A QR code display area is provided on the other two planes of the first and second fixing components. Auxiliary fixing teeth are provided on the side of the limiting groove where the width is smaller. An anti-slip post is fitted onto each end of the connecting ring, with the two anti-slip posts positioned at the wider end of the limiting groove.

3. The data control system for subway passenger merchandise selection and self-pickup upon exiting the station as described in claim 1, characterized in that... The first and second fasteners are made of high-strength engineering plastic. The threaded hole is located near the side of the first fastener. The threaded hole on the first fastener extends from one plane of the first fastener to another plane. The threaded hole on the second fastener extends from the plane of the second fastener that contacts the first fastener to another plane, and its axial width is less than the axial width of the second fastener.

4. The data control system for subway passenger merchandise selection and self-pickup upon exiting the station as described in claim 1, characterized in that... The width of the limiting groove in the middle and near the center of the first fixing member is relatively large along the central axis of the first fixing member. The QR code display area is designed as a shallow groove, formed by laser engraving, and the surface is coated with a wear-resistant coating. The limiting grooves of the first fixing member and the second fixing member are provided with auxiliary fixing teeth, and the heights of the auxiliary fixing teeth on the first fixing member and the second fixing member are different.

5. A data control system for subway passenger merchandise selection and self-pickup upon exiting the station, as described in claim 1, is characterized in that... The local promotion module links routes with attractions. Passengers can scan QR codes on subway handrails to view information on attractions along the current route and recommended itineraries. The information in the local promotion module is updated regularly and includes a version number to ensure accurate and timely attraction data. The local promotion module supports multilingual display and categorized browsing to enhance the user experience for tourists from other regions. The local module sells local specialties, including product price information. Each route's QR code allows users to purchase items from this module.

6. A data control system for subway passenger merchandise selection and self-pickup upon exiting the station, as described in claim 1, is characterized in that... The local specialty products submodule provides local specialties applicable throughout the city, which can be purchased via QR codes on any route. Product information includes name, specifications, unit price, inventory, and applicable pickup stations. The scenic spot cultural and creative products submodule is only open to the current route. Passengers can only purchase route souvenirs and cultural and creative products from scenic spots along the route after entering through the QR code of that route, forming a route-exclusive experience. The remote verification submodule allows passengers to lock their orders and pickup locations in advance and confirm them two hours before pickup. The system generates a unique pickup code and locks the inventory to prevent stockouts or accidental pickup by others.

7. A data control system for subway passenger merchandise selection and self-pickup upon exiting the station, as described in claim 1, is characterized in that... The holiday operation module restricts the time for purchasing, redemption, and pickup, allowing transactions and pickups to be completed only during the holiday period to avoid stockpiling in advance or invalid pickups after the holiday. The holiday operation module has an inventory priority strategy, which prioritizes the allocation of holiday goods to high-traffic routes and hub stations to ensure a good shopping experience for passengers during the holiday.

8. A data control system for subway passenger merchandise selection and self-pickup upon exiting the station, as described in claim 1, is characterized in that... The instant pickup lockers are located at the exits of various subway stations. After arriving, passengers can scan the code to verify their orders. The system will allocate available lockers in real time and unlock them to pick up their goods. They support the pickup of local specialties and cultural and creative products from attractions along the route. The dedicated locking lockers are deployed at urban hub stations, airports, or large transfer stations. After passengers complete remote verification, the system locks the locker, and only the passenger can open the locker with a unique pickup code.

9. A data control system for subway passenger merchandise selection and self-pickup upon exiting the station, as described in claim 1, is characterized in that... The back-end operation security module verifies the dynamic signature of the QR code to prevent forgery or reuse. The back-end operation security module has customer flow prediction and replenishment strategies. It calculates the replenishment demand for a period of time in the future based on historical sales and real-time customer flow prediction, and generates a replenishment plan in advance. The back-end operation security module records the entire operation log, audits remote verification, cabinet opening events, and abnormal picking behavior, and triggers alarms and can temporarily freeze cabinets when an anomaly is detected.

10. A data control system for subway passenger merchandise selection and self-pickup upon exiting the station, as described in claim 6, is characterized in that... The remote verification submodule is equipped with an overdue recovery strategy. If the goods are not picked up within the time limit, the system will unlock the lock and trigger a partial refund or inventory recovery to ensure the utilization rate of the locker. The dedicated locker has an automatic return and refund mechanism for overdue goods. If the goods are not picked up within three days, a partial refund will be automatically issued and the goods will be returned to the warehouse to prevent long-term occupation of the locker. The back-end operation security module supports multi-site linkage to ensure the consistency of scheduling for cross-line orders and transfer pickups.

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