Distribution system and distribution method

Abstract

This invention belongs to the field of warehousing and logistics technology, and discloses a sorting system and sorting method. The sorting system includes a track, multiple sorting vehicles, and multiple shelves. The track is circular and includes two first linear tracks. The multiple sorting vehicles move in coordination with the track and can move in a circle along the track. The shelves are provided with multiple compartments, each compartment corresponding to a cargo box. Shelves are provided on both the inner and outer sides of each first linear track. The sorting vehicles are configured to sort goods onto both the inner and outer shelves of the track. The sorting vehicles can carry the goods to be sorted and move on the track. When the sorting vehicle moves to the compartment corresponding to the goods to be sorted, the sorting vehicle sorts the goods into the cargo box in the corresponding compartment. By setting shelves on both the inner and outer sides of each first linear track, the length of the track can be effectively shortened, the system's footprint can be significantly reduced, and the operational efficiency per unit space can be improved.

Description

Technical Field

[0001] This invention relates to the field of warehousing and logistics technology, and in particular to a distribution system and distribution method. Background Technology

[0002] The core purpose of automated sorting and distribution equipment is to classify and process goods, packages, and other materials according to preset rules. Typical application scenarios include sorting goods based on order information and sorting packages according to different flow directions.

[0003] To increase the flow rate per unit operating area, or to reduce the number of sorting vehicles while meeting the same flow rate requirements, thereby lowering overall equipment purchase and operating costs and reducing equipment space requirements, existing automated sorting and distribution equipment is developing towards a three-dimensional structure. Current technical solutions connect multiple sorting mechanisms via tracks, enabling cyclical movement driven by linear motors. When a sorting mechanism reaches a preset target position, it unloads the items, thus completing the sorting operation.

[0004] However, existing 3D splitter systems have significant drawbacks in practical applications: as the number of grids required increases, the overall length of the equipment increases substantially, leading to a significant rise in costs. The main reasons for this drawback are as follows: On the one hand, the cargo container is only arranged on one side of the distribution equipment, and the distribution vehicle can only complete the transportation and distribution of goods in one direction. To meet the requirement of the same number of compartments, the equipment has to be lengthened to accommodate this, resulting in a large footprint and structural redundancy.

[0005] On the other hand, once the cargo container is full, manual unloading is required. Due to the excessive length of the equipment, the walking distance for manual unloading increases, which not only takes longer but also reduces unloading efficiency, seriously affecting the continuity and efficiency of the overall distribution operation. Summary of the Invention

[0006] The purpose of this invention is to provide a split-cast system and split-cast method that at least solves the problems of large system footprint and structural redundancy.

[0007] To achieve this objective, the present invention adopts the following technical solution: The broadcast system includes: The track is circular and includes two first straight tracks extending along a first direction; Multiple distribution vehicles, in coordination with the track, are capable of moving in a circular motion along the track; The shelf is equipped with multiple compartments, and each compartment contains a corresponding cargo box. The shelves are provided on both the inner and outer sides of each of the first straight tracks. The distribution vehicle is configured to distribute goods to the shelves inside the first straight track as well as to the shelves outside the track.

[0008] As a preferred technical solution for the distribution system, the shelf includes multiple layers of compartments distributed in a vertical direction, and each layer of compartments includes multiple compartments distributed along the extension direction of the track.

[0009] As a preferred technical solution for the broadcasting system, the broadcasting vehicle includes a column and a loading platform. The column moves in coordination with the track, the column extends vertically, and the loading platform can move up and down along the column.

[0010] As a preferred technical solution for the broadcasting system, the broadcasting vehicle is driven by a linear motor to move in a circle along the track. The linear motor includes a primary plate and a secondary plate. The primary plate is disposed on the track, and the secondary plate is disposed on the column.

[0011] As a preferred technical solution for the split-play system, the track further includes two second tracks, one of which is connected to one end of the two first straight tracks, and the other of which is connected to the other end of the two first straight tracks. The corner between the first straight tracks and the second tracks is arc-shaped. When two adjacent broadcast vehicles move to the turning section between the first straight track and the second track, the loading platform of the first broadcast vehicle is controlled to be vertically staggered with the loading platform of the second broadcast vehicle.

[0012] As a preferred technical solution for the broadcasting system, the speed of the broadcasting vehicle at the turning point between the first straight track and the second track is less than its speed on the first straight track.

[0013] As a preferred technical solution for the distribution system, the distribution system further includes a supply mechanism, which is located outside the first straight track and on one side of the shelf along the extension direction of the first straight track. The supply mechanism is used to receive goods to be distributed and to transport the goods to be distributed to the distribution vehicle.

[0014] As a preferred technical solution for the distribution system, the supply mechanism includes at least two layers of supply platforms. The at least two layers of supply platforms are distributed along the extension direction of the first straight track and also along the vertical direction. The two layers of supply platforms are respectively used to transport goods to be distributed to the loading platforms of two adjacent distribution vehicles.

[0015] As a preferred technical solution for the distribution system, the distribution system further includes at least four exchange mechanisms, with at least one exchange mechanism corresponding to each shelf on each side of the first linear track. The exchange mechanism is used to remove the boxes that need to be replaced from the compartment.

[0016] As a preferred technical solution for the distribution system, the distribution system further includes at least three conveying mechanisms, wherein two of the conveying mechanisms correspond to the exchange mechanisms on the outer sides of the two first straight tracks respectively, and at least one conveying mechanism corresponds to the exchange mechanism on the inner side of the two first straight tracks. The conveying mechanisms are used to receive the boxes taken out by the exchange mechanisms and to transport the boxes to the picking station.

[0017] As a preferred technical solution for the distribution system, the track has a clearance space below it, and the conveying mechanism located inside the two first straight tracks can enter and exit the track through the clearance space.

[0018] The distribution method, applied to the distribution system described in any of the above schemes, includes: controlling the distribution vehicle to move in a circular motion along the track; after the distribution vehicle receives the goods to be distributed, determining the location of the target compartment where the goods to be distributed should be placed; when it is determined that the target compartment is located on a shelf inside the first straight track, controlling the distribution vehicle to distribute the goods to the inside of the first straight track when moving to the target compartment; when it is determined that the target compartment is located on a shelf outside the first straight track, controlling the distribution vehicle to distribute the goods to the outside of the first straight track when moving to the target compartment.

[0019] The beneficial effects of this invention are: By setting shelves on both the inner and outer sides of each first straight track, the length of the track can be effectively shortened compared to setting shelves only on the outer side of each first straight track, while meeting the same grid requirements. This significantly reduces the system's footprint and improves the operational efficiency per unit space. Furthermore, by configuring the distribution vehicle to distribute goods to both the inner and outer shelves of the track, it can accommodate the distribution requirements of shelves on both sides of the first straight track. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the split-cast system provided in an embodiment of the present invention; Figure 2 This is a structural front view of the broadcast vehicle involved in the embodiments of the present invention; Figure 3 This is a side view of one structure of the broadcast vehicle involved in the embodiments of the present invention; Figure 4 This is a front view of another structure of the broadcast vehicle involved in the embodiments of the present invention; Figure 5This is a side view of another structure of the broadcast vehicle involved in the embodiments of the present invention; Figure 6 This is a schematic diagram of the linear motor and the broadcasting vehicle involved in the embodiments of the present invention; Figure 7 This is a schematic diagram of two adjacent broadcast vehicles turning in an embodiment of the present invention.

[0021] In the picture: 10. Track; 11. First linear track; 12. Second track; 20. Distribution vehicle; 21. Column; 22. Loading platform; 30. Shelf; 31. Compartment; 40. Feeding mechanism; 50. Exchange mechanism; 60. Conveying mechanism; 71. Primary plate; 72. Secondary plate. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0023] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0026] like Figure 1 As shown, this embodiment of the invention provides a distribution system, including a track 10, multiple distribution vehicles 20, and multiple shelves 30. The track 10 is circular and includes two first straight tracks 11 extending along a first direction. The multiple distribution vehicles 20 move in coordination with the track 10 and can move in a circular motion along the track 10. The shelves 30 are provided with multiple compartments 31, each compartment 31 corresponding to a cargo box. Shelves 30 are provided on both the inner and outer sides of each first straight track 11. The distribution vehicles 20 are configured to distribute goods to the shelves 30 inside the track 10 and to the shelves 30 outside the track 10. The distribution vehicles 20 can carry the goods to be distributed and move on the track 10. When the distribution vehicle 20 moves to the compartment 31 corresponding to the goods to be distributed, the distribution vehicle 20 distributes the goods to be distributed into the cargo box in the corresponding compartment 31.

[0027] By setting shelves 30 on both the inner and outer sides of each first straight track 11, while meeting the requirements of the same number of compartments 31, the length of the track 10 can be effectively shortened compared to the scheme of setting shelves 30 only on the outer side of each first straight track 11, the floor space occupied by the distribution system can be significantly reduced, and the operating efficiency per unit space can be improved. By configuring the distribution vehicle 20 to distribute goods to both the shelves 30 inside and outside the track 10, the distribution requirements of shelves 30 on both sides of the first straight track 11 can be adapted.

[0028] In this embodiment, the track 10 further includes two second tracks 12, one of which is connected to one end of the two first straight tracks 11, and the other is connected to the other end of the two first straight tracks 11. Optionally, the second track 12 can be a straight track, in which case shelves can be arranged on the inner and outer sides of the second track 12; or the second track 12 can also be an arc track.

[0029] In this embodiment, the shelf 30 includes multiple layers of compartments 31 distributed vertically. Each layer of compartments 31 includes multiple compartments 31 distributed along the extension direction of the track 10. This ensures a sufficient number of compartments 31 in the shelf 30, and while meeting the requirement for the same number of compartments 31, shortens the length of the shelf 30, thereby shortening the length of the track 10 and reducing the floor space occupied by the distribution system. It is understood that the shelf 30 on each side of the first linear track 11 can be a single, integral shelf 30, or it can be composed of multiple separate shelves 30 joined together.

[0030] like Figures 2 to 5 As shown, the sorting vehicle 20 includes a column 21 and a loading platform 22. The column 21 extends vertically, and the loading platform 22 is used to carry the goods to be sorted and can move up and down along the column 21. The sorting vehicle 20, with its column 21 and loading platform 22 structure, allows for flexible adjustment of the height of the loading platform 22 as needed, meeting the requirements for matching the sorting vehicle 20 with the multi-layer grid 31 and improving the efficiency and adaptability of the sorting vehicle 20. Optionally, refer to... Figure 2 and Figure 3 One loading platform 22 can be installed; or, refer to Figure 4 and Figure 5 Multiple loading platforms 22 can be set up, and the multiple loading platforms 22 are distributed in the vertical direction.

[0031] In this embodiment, the loading platform 22 has an unloading belt, which can be rotated to distribute the goods to be distributed from the loading platform 22 to the cargo boxes of the corresponding slots 31. By controlling the forward or reverse rotation of the unloading belt, bidirectional distribution of goods can be achieved. The distribution vehicle 20 adopts an existing structure, which will not be described in detail here. And / or, each slot 31 is equipped with an independent conveyor belt. By controlling the rotation of the conveyor belt, the goods to be distributed from the loading platform 22 are unloaded into the cargo boxes of that slot 31. Thus, the start and stop of the conveyor belt of the slot 31 can be independently controlled according to the position of the target slot 31, achieving precise distribution. In other embodiments, the distribution vehicle 20 may also be configured to move relative to the track 10 to the inside or outside of the track 10. When the distribution vehicle 20 needs to distribute goods to the shelf 30 inside the track 10, the distribution vehicle 20 moves relative to the track 10 to the inside of the track 10 to distribute goods to the shelf 30 inside the track 10. When the distribution vehicle 20 needs to distribute goods to the shelf 30 outside the track 10, the distribution vehicle 20 moves relative to the track 10 to the outside of the track 10 to distribute goods to the shelf 30 outside the track 10, thereby realizing the function of the distribution vehicle 20 distributing goods to both the inside and outside of the track 10.

[0032] like Figure 6As shown, the distribution vehicle 20 is driven by a linear motor to move in a circular motion relative to the track 10. The linear motor includes a primary plate 71 and a secondary plate 72. The primary plate 71 is fixedly installed on the track 10, and the secondary plate 72 is fixedly installed on the column 21. When the primary plate 71 is energized, it generates a traveling wave magnetic field that moves along the extension direction of the track 10. This magnetic field interacts with the magnetic field of the permanent magnet on the secondary plate 72 to generate electromagnetic thrust, thereby pushing the secondary plate 72 and the column 21 and the loading platform 22 fixed thereto to move linearly along the direction of the traveling wave magnetic field. Furthermore, there is one primary plate 71, which is set along the extension direction of the track 10. The number of secondary plates 72 is the same as the number of distribution vehicles 20. Multiple secondary plates 72 are set one-to-one on the columns 21 of multiple distribution vehicles 20. The primary plate 71 includes multiple coil segments, each of which can be energized independently. The control system tracks the position of each secondary plate 72 in real time and only energizes the coil segment where the secondary plate 72 is located to generate a local traveling wave magnetic field, thereby driving the movement of the secondary plate 72.

[0033] Reference Figure 1 In this embodiment, the turning angle between the first straight track 11 and the second track 12 is arc-shaped. By accurately calculating the radius of curvature of the arc, it can be ensured that the broadcasting vehicle 20 passes smoothly and steadily through the turning angle between the first straight track 11 and the second track 12, avoiding jamming or derailment.

[0034] like Figure 7 As shown, in this embodiment, when the first distribution vehicle 20 moves to the arc segment between the first straight track 11 and the second track 12, the loading platform 22 of the first distribution vehicle 20 and the loading platform 22 of the second distribution vehicle 20 are vertically staggered to form a vertical clearance space, effectively avoiding the problem of collision between the first distribution vehicle 20 and the second distribution vehicle 20 during turning. Based on this design, the distance between adjacent distribution vehicles 20 does not need to be increased, which simplifies the structural design of the distribution system and ensures the safety and stability of the distribution system operation. In other embodiments, the problem of collision between the first distribution vehicle 20 and the second distribution vehicle 20 during turning can also be avoided by increasing the distance between adjacent distribution vehicles 20. Based on this design, in order to compensate for the loss of operating efficiency that may be caused by increasing the distance between adjacent distribution vehicles 20, the operating speed of the distribution vehicles 20 can be increased, thereby ensuring the overall efficiency of the system.

[0035] Furthermore, the speed of the distribution vehicle 20 at the turn between the first straight track 11 and the second track 12 is less than the speed of the first straight track 11. That is, when the distribution vehicle 20 moves to the turn between the first straight track 11 and the second track 12, the speed of the distribution vehicle 20 is controlled to decrease, so as to prevent the goods on the loading platform 22 from falling off due to inertia.

[0036] Reference Figure 1 The distribution system also includes a supply mechanism 40, which is located outside the first linear track 11 and along the extension direction of the first linear track 11 on one side of the shelf 30, i.e., the supply mechanism 40 is located near the second track 12. The supply mechanism 40 is used to receive goods to be distributed and to transport the goods to be distributed to the distribution vehicle 20. The supply mechanism 40 can be a supply mechanism 40 with a buffer function, such as a multi-segment belt-type supply mechanism 40. Optionally, the supply mechanism 40 may include a loading component, a connecting component, and a buffer component, wherein the loading component is used to receive goods to be distributed, the connecting component is used to transport the goods to the distribution vehicle 20, and the buffer component is located between the loading component and the connecting component, used to receive goods to be distributed from the loading component and transport the goods to be distributed to the connecting component. By employing a supply mechanism 40 with a buffer function, it can be ensured that the distribution vehicle 20 has goods ready for delivery when it passes through the supply mechanism 40, which is beneficial to ensuring that the distribution vehicle 20 is fully supplied and is crucial for improving the efficiency of the distribution system. The supply mechanism 40 adopts an existing structure and will not be described in detail here.

[0037] In this embodiment, there are two supply mechanisms 40. One supply mechanism 40 is located at one end of one of the first straight tracks 11 near one of the second tracks 12, and the other supply mechanism 40 is located at one end of another first straight track 11 near another second track 12, which improves the operating efficiency of the distribution system.

[0038] Furthermore, the supply mechanism 40 includes at least two layers of supply platforms, which are distributed along the extension direction of the first straight track 11 and also vertically. The two supply platforms are used to deliver goods to be distributed to the loading platforms 22 of two adjacent distribution vehicles 20. Since the supply mechanism 40 is located near the bend between the first straight track 11 and the second track 12, when two adjacent distribution vehicles 20 arrive at the supply mechanism 40, their loading platforms 22 are still vertically staggered. Through this arrangement of the supply mechanism 40, the two supply platforms can simultaneously supply goods to the loading platforms 22 of the two adjacent distribution vehicles 20, thus improving the supply efficiency of the supply mechanism.

[0039] Furthermore, referring to Figure 1The sorting system also includes at least four exchange mechanisms 50. Each shelf 30 on each side of the first linear track 11 corresponds to at least one exchange mechanism 50. The exchange mechanism 50 is used to remove the boxes that need to be replaced from the shelf 30. When the box in the compartment 31 is full of goods or the sorting operation corresponding to that compartment 31 is completed, the exchange mechanism 50 removes the box from the compartment 31 so that an empty box can be placed in the compartment 31 to continue collecting goods. In this embodiment, the number of exchange mechanisms 50 is four, with one exchange mechanism 50 corresponding to each shelf 30 on each side of the first linear track 11, which meets the requirements and reduces costs. The exchange mechanism 50 may include a gripping component, a lifting component, and a moving component. The gripping component is used to hold the box, the lifting component is used to drive the gripping component to move up and down, and the moving component is used to drive the gripping component and the lifting component to move horizontally, thereby completing the picking and placing of the box. The exchange mechanism 50 adopts an existing structure and will not be described in detail here.

[0040] Furthermore, referring to Figure 1 The sorting system also includes at least three conveying mechanisms 60. Two of the conveying mechanisms 60 correspond to the exchange mechanisms 50 on the outer sides of the two first linear tracks 11, and at least one conveying mechanism 60 corresponds to the exchange mechanisms 50 on the inner sides of the two first linear tracks 11. The conveying mechanism 60 is used to receive the boxes taken out by the exchange mechanism 50 and to transport the boxes to the picking station, thereby automating the unloading of the boxes, improving unloading efficiency, and ensuring the continuity and efficiency of the overall sorting operation. In this embodiment, there are three conveying mechanisms 60. Two of the conveying mechanisms 60 correspond to the exchange mechanisms 50 on the outer sides of the two first linear tracks 11, and the other conveying mechanism 60 corresponds to the exchange mechanisms 50 on the inner sides of the two first linear tracks 11 simultaneously. That is, the two exchange mechanisms 50 located on the inner sides of the two first linear tracks 11 share one conveying mechanism 60, which can both meet the requirements and reduce costs. In other embodiments, the number of conveying mechanisms 60 may also be four, with two conveying mechanisms 60 corresponding to the exchange mechanisms 50 on the outer sides of the two first linear tracks 11, and the other two conveying mechanisms 60 corresponding to the exchange mechanisms 50 on the inner sides of the two first linear tracks 11, that is, each exchange mechanism 50 corresponds to one conveying mechanism 60. Optionally, the conveying mechanism 60 is a conveyor line or a transport trolley. The conveyor line and transport trolley adopt existing structures and will not be described in detail here.

[0041] Furthermore, there is a clearance space below the track 10, through which the conveying mechanism 60 located inside the two first straight tracks 11 can enter and exit the track 10. In this embodiment, the conveying direction of the conveying mechanism 60 is parallel to the extension direction of the first straight track 11, and there is a clearance space below each of the two second tracks 12. The conveying mechanism 60 enters the track 10 through the clearance space below one second track 12 and exits the track 10 through the clearance space below the other second track 12.

[0042] This invention also provides a distribution method applied to the above-mentioned distribution system. The distribution method includes: controlling the distribution vehicle 20 to move in a circular motion along the track; after the distribution vehicle 20 receives the goods to be distributed, determining the location of the target compartment where the goods to be distributed are to be placed; when the target compartment is determined to be located on the shelf 30 inside the first straight track 11, controlling the distribution vehicle 20 to distribute the goods to the inside of the first straight track 11 when moving to the target compartment; when the target compartment is determined to be located on the shelf 30 outside the first straight track 11, controlling the distribution vehicle 20 to distribute the goods to the outside of the first straight track 11 when moving to the target compartment.

[0043] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A distribution system, characterized by include: The track (10) is in the shape of a ring and includes two first straight tracks (11) extending along a first direction. Multiple distribution vehicles (20) move in coordination with the track (10) and are able to move in a ring along the track (10); The shelf (30) is provided with multiple compartments (31), and each compartment (31) is provided with a corresponding cargo box; Each of the first straight track (11) has a shelf (30) on its inner and outer sides respectively. The distribution vehicle (20) is configured to distribute goods to the shelf (30) inside the first straight track (11) and to the shelf (30) outside the first straight track (11).

2. The distribution system of claim 1, wherein, The shelf (30) includes multiple compartments (31) distributed in a vertical direction, each compartment (31) including multiple compartments (31) distributed in the extension direction of the track (10).

3. The distribution system of claim 1, wherein, The broadcast vehicle (20) includes a column (21) and a loading platform (22). The column (21) moves in coordination with the track (10). The column (21) extends vertically, and the loading platform (22) can move up and down along the column (21).

4. The distribution system of claim 3, wherein, The broadcasting vehicle (20) is driven by a linear motor to move in a circle along the track (10). The linear motor includes a primary plate (71) and a secondary plate (72). The primary plate (71) is disposed on the track (10), and the secondary plate (72) is disposed on the column (21).

5. The distribution system of claim 3, wherein, The track (10) also includes two second tracks (12), one of which is connected to one end of the two first straight tracks (11), and the other is connected to the other end of the two first straight tracks (11). The corner between the first straight track (11) and the second track (12) is arc-shaped. In two adjacent broadcast vehicles (20), when the first broadcast vehicle (20) moves to the turn between the first straight track (11) and the second track (12), the loading platform (22) of the first broadcast vehicle (20) and the loading platform (22) of the second broadcast vehicle (20) are vertically staggered.

6. The distribution system of claim 5, wherein, The speed at which the broadcast vehicle (20) moves at the turn between the first straight track (11) and the second track (12) is less than its speed on the first straight track (11).

7. The distribution system of claim 5, wherein, The distribution system also includes a supply mechanism (40), which is located outside the first linear track (11) and on one side of the shelf (30) along the extension direction of the first linear track (11). The supply mechanism (40) is used to receive goods to be distributed and to transport the goods to be distributed to the distribution vehicle (20).

8. The distribution system of claim 7, wherein, The supply mechanism (40) includes at least two layers of supply platforms, which are distributed along the extension direction of the first straight track (11) and also along the vertical direction. The two layers of supply platforms are used to transfer goods to be distributed to the loading platform (22) of two adjacent distribution vehicles (20).

9. The recast system according to any one of claims 1-8, characterized in that, The distribution system also includes at least four exchange mechanisms (50), with each shelf (30) on each side of the first linear track (11) corresponding to at least one exchange mechanism (50), which is used to remove the boxes to be replaced from the compartments (31).

10. The multicast system according to claim 9, characterized in that, The distribution system further includes at least three conveying mechanisms (60), wherein two of the conveying mechanisms (60) correspond to the exchange mechanisms (50) located outside the two first straight tracks (11), and at least one of the conveying mechanisms (60) corresponds to the exchange mechanism (50) located inside the two first straight tracks (11). The conveying mechanism (60) is used to receive the cargo box taken out by the exchange mechanism (50) and to transport the cargo box to the picking station.

11. The recast system according to claim 10, characterized in that, The track (10) has a clearance space below it, through which the conveying mechanism (60), located inside the two first straight tracks (11), can enter and exit the track (10).

12. A splitting method, characterized in that, The distribution method is applied to the distribution system according to any one of claims 1-11, comprising: controlling the distribution vehicle (20) to move in a circular motion along the track (10); after the distribution vehicle (20) receives the goods to be distributed, determining the location of the target compartment where the goods to be distributed are to be placed; when it is determined that the target compartment is located on the shelf (30) inside the first straight track (11), controlling the distribution vehicle (20) to distribute the goods to the inside of the first straight track (11) when moving to the target compartment; and when it is determined that the target compartment is located on the shelf (30) outside the first straight track (11), controlling the distribution vehicle (20) to distribute the goods to the outside of the first straight track (11) when moving to the target compartment.

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