Body production sequence scheduling system and method

Abstract

The present application relates to a kind of car body production sequence scheduling system and scheduling method, so that car body is after welding process, enter assembly process before, in coating process, car body production sequence adjustment is carried out, the intelligent scheduling of car body production sequence between different processes is realized, and car body of production plan overtime can be timely discharged;The order of discharge queue is adjusted by vertical warehouse scheduling system, can meet the demand of adjusting spraying order according to color in coating process without affecting assembly plan order, and the discharge queue in production can make the same color car body sort together, reduce the color switching frequency in coating spraying process, improve production efficiency;Pre-paint grouping stereoscopic warehouse is set in coating process, between pretreatment electrophoresis line and topcoat line, is sorted and adjusted by discharge queue in coating process, can reduce the situation that assembly plan is adjusted due to car body needing to be repaired from assembly process point because of coating quality defect, improve production efficiency.

Description

Technical Field

[0001] This invention relates to the field of automobile manufacturing technology, and in particular to a vehicle body production sequence scheduling system and method. Background Technology

[0002] In the process of automobile body production, welding, painting and final assembly have different production plans due to different production scheduling principles. The painting workshop requires a large area for body storage and grouping. However, the traditional flat layout requires a large building area and has poor storage and retrieval flexibility. Nowadays, three-dimensional storage is gradually being applied to automobile production lines.

[0003] While three-dimensional storage of vehicle bodies improves storage space utilization efficiency and flexibility, it still presents the challenge of intelligently scheduling the production sequence of the vehicle body across the "welding-painting-final assembly" processes. During production, significant differences in the production plan sequence among welding, painting, and final assembly processes mean that some vehicles with overdue production schedules cannot be promptly released from storage. Furthermore, the presence of spot repairs and rework during the painting process significantly impacts the original production plan sequence, extending production time. Summary of the Invention

[0004] Therefore, it is necessary to provide a body production sequence scheduling system and method that can intelligently adjust the production sequence of the body between the "welding-painting-final assembly" processes.

[0005] This invention provides a vehicle body production sequence scheduling system, comprising a welding process, a painting process, and a final assembly process arranged sequentially. The painting process includes a pretreatment electrophoresis line and a topcoat line arranged sequentially. The vehicle body production sequence scheduling system further includes:

[0006] A pre-painting grouping three-dimensional library is set between the pretreatment electrophoresis line and the topcoat line, and the pre-painting grouping three-dimensional library is set with outbound tasks with outbound queues.

[0007] A post-painting storage automated warehouse is located between the painting process and the final assembly process;

[0008] The automated warehouse scheduling system connects both the pre-painting grouping automated warehouse and the post-painting storage automated warehouse. The system records the information of the vehicles entering the warehouse and binds it to the assigned storage location. After each outbound task is completed, the system combines the storage status of the post-painting storage automated warehouse and the pre-painting grouping automated warehouse to determine the production urgency of the vehicles in the pre-painting grouping automated warehouse. Vehicles with production urgency are immediately outbound, while the remaining vehicles are outbound sequentially according to the outbound queue.

[0009] In one embodiment, the vehicle body is equipped with tag information, and both the pre-painting grouping automated warehouse and the post-painting storage automated warehouse are equipped with automated warehouse stacker cranes. The automated warehouse stacker cranes are equipped with electronic readers, and the automated warehouse scheduling system is connected to the electronic readers.

[0010] In one embodiment, the label information includes a plan sequence number, vehicle body drawing number, and color.

[0011] In one embodiment, a skid is provided between the parking space and the vehicle body, and the skid moves the vehicle body out of or into the parking space.

[0012] In one embodiment, the vehicle body carries tag information via an RFID tag, and the electronic reader is configured as an RFID reader.

[0013] The present invention also provides a method for scheduling the production sequence of a vehicle body, the method being executed based on the vehicle body production sequence scheduling system described above, and comprising the following steps:

[0014] S100, The vehicle body enters the pre-painting grouping automated warehouse;

[0015] S200, The automated warehouse scheduling system writes the car body with the smallest planned sequence number in the pre-painting grouped automated warehouse and the same color car body into the outbound queue, and outbounds them in sequence according to the outbound queue;

[0016] S300. After each outbound task is completed, the warehouse scheduling system determines the production urgency of the vehicles in the pre-painting grouping warehouse based on the inventory information of the post-painting storage warehouse, the vehicle information in the pre-painting grouping warehouse, and the number of vehicles between the pre-painting grouping warehouse and the pre-painting grouping warehouse.

[0017] S400: Vehicle bodies that meet the production urgency criteria are given priority for release from the warehouse. Other vehicle bodies are grouped according to their paint color and a release queue is generated. They are released from the warehouse in sequence according to the release queue.

[0018] S500: According to the final assembly production demand plan, the car bodies in the post-painting storage automated warehouse will be shipped out one by one.

[0019] In one embodiment, the number of car bodies that have left the pre-painting grouping automated warehouse but have not entered the post-painting storage automated warehouse is A, the number of car bodies delayed due to repairs is B, the number of car bodies in the post-painting storage automated warehouse that have continuous outbound conditions is C, the outbound queue buffer interruption threshold is D, the planned sequence number of the car body currently outbound from the post-painting storage automated warehouse is E, and the planned sequence number of the car body waiting to be scheduled in the pre-painting grouping automated warehouse is F.

[0020] For each car body in the pre-painting grouping 3D warehouse, the F value of each car body is determined one by one. It is determined whether there is a car body whose F value satisfies: A+B+C+D>FE. A car body that satisfies the above condition is defined as having production urgency.

[0021] In one embodiment, between S400 and S500, the following step is further included: S450, if the outbound queue is empty, then repeat the steps from S200 to S400.

[0022] In one embodiment, step S500 further includes: issuing an early warning when the number of vehicles in the automated post-painting storage warehouse that meet the conditions for continuous outbound shipment is insufficient, based on the inventory status of the warehouse.

[0023] In one embodiment, step S500 further includes: when the vehicle body X to be shipped out has not yet entered the post-painting storage automated warehouse, a replacement adjustment is performed, modifying the information of vehicle body Y in the post-painting storage automated warehouse that has the same drawing number as X and the largest planned sequence number, and replacing X for shipment to meet the final assembly production demand plan.

[0024] The vehicle body production sequence scheduling system and method provided by this invention enable the vehicle body production sequence to be adjusted during the painting process after the welding process and before entering the final assembly process. This achieves intelligent scheduling of the vehicle body production sequence between different processes. By determining the production urgency after each outbound task is completed through the automated warehouse scheduling system, vehicles with overdue production plans can be promptly outbound. By adjusting the order of the outbound queue through the automated warehouse scheduling system, the need to adjust the painting sequence according to color can be met in the painting process without affecting the final assembly plan. During production, the outbound queue can group vehicles of the same color together, reducing the frequency of color switching during the painting process and improving production efficiency. By setting up the pre-painting grouped automated warehouse in the painting process, between the pretreatment electrophoresis line and the topcoat line, and adjusting the order through the outbound queue in the painting process, the situation where the final assembly plan needs to be adjusted due to vehicles with painting quality defects requiring spot repair or rework in the final assembly process can be reduced, thereby improving production efficiency and shortening production time. Attached Figure Description

[0025] Figure 1 This is a layout diagram of a vehicle body production sequence scheduling system according to some embodiments of this application;

[0026] Figure 2 This is a schematic diagram of the pre-painting grouping three-dimensional library structure of some embodiments of this application;

[0027] Figure 3 This is a schematic diagram of a stacker crane retrieving a vehicle body from an automated warehouse according to some embodiments of this application;

[0028] Figure 4A side view of the vehicle body of an automated storage and retrieval system (AS / RS) stacker crane according to some embodiments of this application;

[0029] Figure 5 This is a schematic diagram of a vehicle body production sequence scheduling method according to some embodiments of this application.

[0030] Icon labels:

[0031] 11. Automated Warehouse Stacker Crane; 12. Skid; 13. Forklift; 14. RFID Tag; 15. RFID Reader. Detailed Implementation

[0032] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, 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 this invention.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0037] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0038] See Figure 1 , Figure 1 A layout diagram of a vehicle body production sequence scheduling system according to some embodiments of this application is shown.

[0039] This application provides a vehicle body production sequence scheduling system, including a welding process, a painting process, and a final assembly process arranged sequentially. The painting process includes a pretreatment electrophoresis line and a topcoat line arranged sequentially. The vehicle body production sequence scheduling system also includes a pre-painting grouping automated warehouse, a post-painting storage automated warehouse, and an automated warehouse scheduling system. The pre-painting grouping automated warehouse is located between the pretreatment electrophoresis line and the topcoat line, and it has outbound tasks with an outbound queue. The post-painting storage automated warehouse is located between the painting process and the final assembly process. Both the pre-painting grouping automated warehouse and the post-painting storage automated warehouse are connected to the automated warehouse scheduling system. The automated warehouse scheduling system records the information of the vehicles entering the warehouse and binds it to the assigned warehouse location. After each outbound task is completed, the automated warehouse scheduling system combines the storage status of the post-painting storage automated warehouse and the pre-painting grouping automated warehouse to determine the production urgency of the vehicles in the pre-painting grouping automated warehouse. Vehicles with production urgency are immediately outbound, and the remaining vehicles are outbound sequentially according to the outbound queue.

[0040] The aforementioned vehicle body production sequence scheduling system and method are applicable to flexible automated production lines for multiple vehicle models. This allows for adjustments to the vehicle body production sequence within the pre-painting automated warehouse and post-painting automated warehouse after the painting process, following the welding process and before entering the final assembly process. This achieves intelligent scheduling of the vehicle body production sequence across different processes. By determining the production urgency after each outbound task is completed through the automated warehouse scheduling system, vehicles with overdue production plans can be promptly outbound. Furthermore, by adjusting the outbound queue order through the automated warehouse scheduling system, the painting process can be optimized according to color requirements without affecting the final assembly schedule. To address the need for adjusting the painting sequence, the outbound queue in production allows vehicles of the same color to be grouped together, reducing the frequency of color switching during the painting process and improving production efficiency. By placing a pre-painting grouped automated warehouse within the painting process, between the pretreatment electrophoresis line and the topcoat line, and adjusting the order via the outbound queue during the painting process, the need for adjustments to the final assembly plan due to painting quality defects requiring spot repairs or rework at the final assembly stage can be reduced, improving production efficiency and shortening production time. Automated storage also enhances storage space utilization efficiency and flexibility, while simultaneously solving the problem of intelligent scheduling of vehicle bodies between the "welding-painting-final assembly" processes.

[0041] Specifically, the automated warehouse scheduling system determines the production urgency of the vehicles stored in the warehouse based on the inventory information of the post-painting storage warehouse, the production plan information of the vehicles stored in the pre-painting grouping automated warehouse, and the number of vehicles between the two warehouses.

[0042] In some specific implementations, the vehicle body is equipped with tags, and both the pre-painting automated warehouse and the post-painting automated warehouse are equipped with stacker cranes 11. Each stacker crane 11 is equipped with an electronic reader / writer, and the automated warehouse scheduling system is connected to the electronic reader / writer. During the entry and exit processes, the vehicle body's tag information is read and recorded by the electronic reader / writer.

[0043] In some specific implementations, the label information includes the planned sequence number, vehicle body drawing number, and color. The automated warehouse scheduling system obtains this information to sort the vehicle bodies in sequence.

[0044] See also Figure 2 , Figure 3 and Figure 4 , Figure 2 The following are schematic diagrams illustrating the structure of the pre-painting grouped three-dimensional library according to some embodiments of this application. Figure 3 This application shows a schematic diagram of the stacker crane 11 retrieving the vehicle body according to some embodiments of the present application. Figure 4 The diagram shows a side view of the stacker crane 11 in some embodiments of this application, depicting the vehicle body being retrieved. In some specific embodiments, a skid 12 is provided between the storage location of the pre-painting automated warehouse and the post-painting storage automated warehouse and the vehicle body, the skid 12 driving the vehicle body out of or into the warehouse. The vehicle body moves along the aisles of the pre-painting automated warehouse and the post-painting storage automated warehouse via the skid 12. Furthermore, the stacker crane 11 is equipped with forks 13, which pick up the skid 12 and the vehicle body and move them into the warehouse.

[0045] In some specific embodiments, the vehicle body is attached with tag information via RFID tag 14, and the electronic reader is configured as RFID reader 15. RFID (Radio Frequency Identification, commonly known as electronic tag) identification is more accurate, has a more flexible identification distance, and can achieve penetrating and barrier-free reading. Furthermore, the RFID tag 14 is set at the bottom of the skid 12, and the RFID reader 15 is set on the stacker crane 11 of the automated storage and retrieval system. When the skid 12 and the vehicle body pass over the RFID reader 15 to enter and exit the warehouse, the information of the RFID tag 14 is read by the RFID reader 15 and bound to the assigned storage location for recording.

[0046] See also Figure 5 , Figure 5 A schematic diagram of a vehicle body production sequence scheduling method according to some embodiments of this application is shown.

[0047] This application also provides a body production sequence scheduling method, which is executed based on a body production sequence scheduling system, including the following steps:

[0048] S100, the vehicle body enters the pre-painting automated warehouse. During the vehicle body entry process, the RFID reader 15 installed on the stacker crane 11 reads the RFID tag 14 on the vehicle body skid 12, and the automated warehouse scheduling system records the vehicle body information and binds it to the assigned storage location.

[0049] The S200 automated warehouse scheduling system writes the car body with the smallest planned sequence number in the pre-painting grouped automated warehouse and the car body of the same color into the outbound queue, and then outbounds them in sequence according to the outbound queue.

[0050] S300: After each outbound task is completed, the automated warehouse scheduling system determines the production urgency of the vehicles in the pre-painting grouped automated warehouse based on the inventory information of the post-painting storage warehouse, the vehicle information in the pre-painting grouped automated warehouse, and the number of vehicles between the pre-painting grouped automated warehouse and the pre-painting grouped automated warehouse, and determines whether there are any vehicles in the warehouse at risk of exceeding the time limit.

[0051] S400 vehicles that meet the production urgency criteria are prioritized for shipment. Other vehicles are grouped according to their paint color and a shipment queue is created. Shipments are then shipped sequentially according to the queue. Vehicles of the same color are shipped out continuously, reducing the frequency of color changes during the painting process and improving production efficiency.

[0052] S500: Based on the final assembly production demand plan, the car bodies stored in the automated warehouse after painting are shipped out one by one. The final assembly production demand plan is obtained through the MOM system, and the car bodies are shipped out one by one and enter the final assembly process.

[0053] In some specific implementations, S400 and S500 may also include: S450, if the outbound queue is empty, repeat steps S200 to S400.

[0054] In some specific implementations, the number of car bodies that have left the pre-painting grouping automated warehouse but not yet entered the post-painting storage automated warehouse is A; the number of car bodies delayed due to repairs is B; the number of car bodies in the post-painting storage automated warehouse that meet the conditions for continuous outbound departure is C; the outbound queue buffer interruption threshold is D; the planned sequence number of the car body currently outbound from the post-painting storage automated warehouse is E; and the planned sequence number of the car body waiting to be scheduled in the pre-painting grouping automated warehouse is F. For each car body in the pre-painting grouping automated warehouse, F is checked one by one to determine if there exists a car body whose F satisfies: A+B+C+D>FE. Car bodies that satisfy the above condition are defined as having production urgency. Car bodies that meet the production urgency criteria are immediately outbound; if no car body meets the production urgency criteria, they are outbound sequentially according to the outbound queue.

[0055] The outbound queue buffer interruption threshold is designed to create a buffer range for the outbound queue, preventing immediate interruption of the outbound queue from causing production line stagnation and affecting production efficiency.

[0056] In some specific implementations, step S500 further includes: issuing a warning when the number of car bodies in the automated post-painting storage warehouse that meet the conditions for continuous outbound shipment is insufficient, based on the inventory status of the warehouse. Further, a warning is issued when the number of car bodies in the warehouse that meet the conditions for continuous outbound shipment does not meet the number of car bodies required for the next process.

[0057] In some specific implementations, step S500 further includes: when the vehicle body X to be shipped has not yet entered the post-painting storage automated warehouse, a replacement adjustment is made, modifying the information of vehicle body Y in the post-painting storage automated warehouse that has the same drawing number as X and the largest planned sequence number, and replacing X for shipment to meet the final assembly production demand plan.

[0058] In some specific implementations, the pre-painting automated storage and retrieval system is a single stacker crane with a single aisle and 36 storage positions, while the post-painting automated storage and retrieval system is a double stacker crane with a single aisle and 156 storage positions. The number of vehicles delayed for repair, B, is 90, and the outbound queue buffer interruption threshold, D, is 10.

[0059] In some specific implementations, the number of storage locations and the arrangement of the stacker cranes 11 in the vertical warehouse are planned according to the space conditions and capacity requirements of the production site. The specific parameters A, B, C, D, E, and F in the body production sequence scheduling method are determined according to the production cycle and can be adjusted according to the actual situation.

[0060] The vehicle body production sequence scheduling system and method provided by this invention are applicable to flexible automated production lines for multiple vehicle models. This allows for adjustments to the vehicle body production sequence within the pre-painting automated warehouse and the post-painting automated warehouse, after the painting process and before the final assembly process, following the welding process. Firstly, it achieves intelligent scheduling of the vehicle body production sequence between different processes. By determining the production urgency after each outbound task is completed through the automated warehouse scheduling system, vehicles with overdue production plans can be promptly outbound. Secondly, by adjusting the order of the outbound queue through the automated warehouse scheduling system, the painting process can be satisfied without affecting the final assembly plan sequence. Based on the need to adjust the painting sequence according to color, the outbound queue in production can group vehicles of the same color together, reducing the frequency of color switching during the painting process and improving production efficiency. In addition, setting up the pre-painting grouped three-dimensional warehouse in the painting process, between the pretreatment electrophoresis line and the topcoat line, and sorting and adjusting through the outbound queue in the painting process can reduce the need for rework or repair of vehicles due to painting quality defects, which would lead to adjustments in the final assembly plan, improve production efficiency, and shorten production time. Based on three-dimensional storage, the efficiency and flexibility of storage space utilization are improved, while solving the problem of intelligent scheduling of vehicle bodies between the "welding-painting-final assembly" process.

[0061] 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.

[0062] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A method for scheduling the production sequence of car bodies, characterized in that, A vehicle body production sequence scheduling system is provided, comprising a welding process, a painting process, and a final assembly process arranged sequentially. The painting process includes a pretreatment electrophoresis line and a topcoat line arranged sequentially. The vehicle body production sequence scheduling system further includes: A pre-painting grouping three-dimensional library is set between the pretreatment electrophoresis line and the topcoat line, and the pre-painting grouping three-dimensional library is set with outbound tasks with outbound queues. A post-painting storage automated warehouse is located between the painting process and the final assembly process; The automated warehouse scheduling system connects both the pre-painting grouping automated warehouse and the post-painting storage automated warehouse. The automated warehouse scheduling system records the information of the vehicles entering the warehouse and binds it to the assigned storage location. After each outbound task is completed, the automated warehouse scheduling system combines the storage status of the post-painting storage automated warehouse and the pre-painting grouping automated warehouse to determine the production urgency of the vehicles in the pre-painting grouping automated warehouse. Vehicles with production urgency are immediately outbound, while the remaining vehicles are outbound sequentially according to the outbound queue. The vehicle body is equipped with labels containing information such as the planning sequence number, body drawing number, and color. The vehicle body production sequence scheduling method includes the following steps: S100, The vehicle body enters the pre-painting grouping automated warehouse; S200, The automated warehouse scheduling system writes the car body with the smallest planned sequence number in the pre-painting grouped automated warehouse and the same color car body into the outbound queue, and outbounds them in sequence according to the outbound queue; S300. After each outbound task is completed, the warehouse scheduling system determines the production urgency of the vehicles in the pre-painting grouping warehouse based on the inventory information of the post-painting storage warehouse, the vehicle information in the pre-painting grouping warehouse, and the number of vehicles between the pre-painting grouping warehouse and the pre-painting grouping warehouse. S400: Vehicle bodies that meet the production urgency criteria are given priority for release from the warehouse. Other vehicle bodies are grouped according to their paint color and a release queue is generated. They are released from the warehouse in sequence according to the release queue. S500: According to the final assembly production demand plan, the car bodies in the post-painting storage automated warehouse will be shipped out one by one; Among them, the number of car bodies that have left the pre-painting grouping automated warehouse but have not entered the post-painting storage automated warehouse is A, the number of car bodies that are delayed due to repairs is B, the number of car bodies in the post-painting storage automated warehouse that have the condition for continuous outbound is C, the outbound queue buffer interruption threshold is D, the planned sequence number of the car body currently outbound from the post-painting storage automated warehouse is E, and the planned sequence number of the car body waiting to be scheduled in the pre-painting grouping automated warehouse is F. For each car body in the pre-painting grouping 3D warehouse, the F value of each car body is determined one by one. It is determined whether there is a car body whose F value satisfies: A+B+C+D>FE. A car body that satisfies the above condition is defined as having production urgency.

2. The vehicle body production sequence scheduling method according to claim 1, characterized in that, Between S400 and S500, there is also: S450, if the outbound queue is empty, then repeat the steps from S200 to S400.

3. The vehicle body production sequence scheduling method according to claim 1, characterized in that, The S500 step further includes: based on the inventory status of the post-painting storage automated warehouse, when the number of vehicles in the warehouse that meet the conditions for continuous outbound delivery is insufficient, issuing an early warning.

4. The vehicle body production sequence scheduling method according to claim 1, characterized in that, The S500 step further includes: when the vehicle body X to be shipped out has not yet entered the post-painting storage automated warehouse, a replacement adjustment is made, modifying the information of the vehicle body Y in the post-painting storage automated warehouse that has the same drawing number as X and the largest planned sequence number, and replacing X for shipment to meet the final assembly production demand plan.

5. The vehicle body production sequence scheduling method according to claim 1, characterized in that, Both the pre-painting grouping automated warehouse and the post-painting storage automated warehouse are equipped with stacker cranes. The stacker cranes are equipped with electronic readers, and the automated warehouse scheduling system is connected to the electronic readers.

6. The vehicle body production sequence scheduling system according to claim 1, characterized in that, A skid is installed between the storage space and the vehicle body, and the skid moves the vehicle body out of or into the storage space.

7. The vehicle body production sequence scheduling system according to claim 1, characterized in that, The vehicle body is attached with the tag information via an RFID tag, and the electronic reader is configured as an RFID reader.

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