A body-in-white scheduling apparatus, method, system and electronic device

Abstract

The application relates to the technical field of vehicles, and provides a body-in-white scheduling device, method, system and electronic equipment; the method comprises the following steps: S1: a material conveying step: used for conveying a skid with a body-in-white to be painted or an idle skid to a three-dimensional warehouse access station respectively; S2: acquiring identification information of the skid of the three-dimensional warehouse access station, and judging a working state of the skid based on the identification information, and when the working state of the skid is a carrying state, the next step is entered; S3: adopting a preset control strategy to convey the skid carrying the body-in-white to be painted to a painting workshop, and completing a painting process of the body-in-white; wherein the conveying line at least comprises a body-in-white conveying line and an idle skid return conveying line. The application solves the technical problem of low body-in-white storage and distribution efficiency in the prior art.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a white body dispatching device, method, system and electronic device. Background Technology

[0002] With social progress and economic development, competition in the commercial vehicle market is becoming increasingly fierce, and users' demands for product personalization are rising. Customization will become a future trend, and the automotive manufacturing model will also evolve from mass production to mass customization. Currently, the common storage and transportation method in automobile factories is the WBS (Worksheet Base System) flat storage and transportation method, which buffers and transports the body-in-white produced in the welding workshop to the painting workshop. However, the use of flat warehouses has some drawbacks. First, only the body-in-white in the first storage position of each aisle in the flat warehouse can be sent to the painting workshop, making it impossible to transport the corresponding body-in-white according to the painting production plan. It is also impossible to sort or quickly retrieve body-in-white. Furthermore, flat warehouses have low utilization of three-dimensional space.

[0003] The conveying method and integrated automated vehicle storage system proposed in the patent "Automated Vehicle Body Conveying Method, System and Integrated Vehicle Body Storage System" (patent application publication number CN112758566 A) can realize the storage, sorting and sequential delivery of vehicle bodies, improving vehicle body delivery efficiency. However, the disadvantages are that the vehicle body needs to be sorted, the vehicle model information of each storage location cannot be known, the system cannot be adjusted according to temporary plans, and the vehicle body can only be sent in sequence. The conveying method lacks flexible scheduling function, and the empty skid of the vehicle body cannot be directly returned to the welding workshop. Summary of the Invention

[0004] The purpose of this invention is to provide a white body dispatching device, method, system, and electronic device, which solves the technical problem of low efficiency in white body storage and delivery in the prior art. The specific solution is as follows:

[0005] A white body dispatching device, comprising:

[0006] The body-in-white conveyor lines are arranged vertically and vertically, as well as the idle skid return conveyor lines;

[0007] The body-in-white conveyor line is used to directly transport the body-in-white from the welding workshop to the painting workshop or to the automated warehouse entry and exit station, and then transfer the body-in-white to the painting workshop via the automated warehouse entry and exit station.

[0008] The idle skid return conveyor line is used to transport idle skids to the body-in-white unloading station or to the automated warehouse via the stacker crane main structure for storage.

[0009] Furthermore, the body-in-white conveyor line and the idle skid return conveyor line are in an L-shape overall.

[0010] The body-in-white conveyor line includes:

[0011] The first conveyor section is connected to the second conveyor section via a first rotary roller bed; wherein, a first lifting roller bed is provided at the end of the first conveyor section away from the first rotary roller bed; and the workstation corresponding to the first lifting roller bed is the white body unloading workstation.

[0012] The first lifting roller bed returns the idle skid to the corresponding end of the conveyor line and transports it to the body-in-white unloading station to receive the body-in-white transported by the welding workshop.

[0013] The second conveyor section has a three-dimensional inbound / outbound station located at the end furthest from the first rotary bed;

[0014] The automated warehouse entry and exit station is used to transport idle skids or skids carrying bodies-in-white to be painted to the automated warehouse, or to transport skids carrying bodies-in-white to be painted to the painting workshop through a common section.

[0015] The common section includes: a fifth conveyor section and a second lifting roller bed; wherein, the workstation corresponding to the second lifting roller bed is the underground return workstation of the idle skid;

[0016] The second lifting roller bed is used to transport the idle skids conveyed by the fourth conveyor section to the inbound / outbound workstations of the automated warehouse.

[0017] Furthermore, the idle skid return conveyor line includes: a third conveying section, a second rotary roller bed, and a fourth conveying section;

[0018] The third teleportation segment is located directly below the first teleportation segment, and the fourth teleportation segment is located directly below the second teleportation segment.

[0019] The third conveyor section is connected to the fourth conveyor section via the second rotating roller bed.

[0020] The first and third transmission segments have the same length, and the second and fourth transmission segments have the same length.

[0021] A method for scheduling vehicle body-in-white, the method comprising the following steps:

[0022] S1: Material conveying step: Used to convey skids with white bodies to be painted or idle skids to the automated inbound / outbound warehouse station respectively;

[0023] S2: Obtain the identification information of the skids at the automated inbound / outbound workstation, and determine the working status of the skids based on the identification information. When the skids are in the load-bearing state, proceed to the next step.

[0024] S3: Using a preset control strategy, the skid carrying the body-in-white to be painted is transported to the painting workshop to complete the painting process of the body-in-white; wherein, the conveyor line includes at least: a body-in-white conveyor line and an idle skid return conveyor line.

[0025] Furthermore, S2 acquires the identification information of the skids at the automated inbound / outbound workstation and determines the working status of the skids based on the identification information, specifically including:

[0026] Obtain the identification information of the skid, wherein the identification information includes at least: the skid's identification mark and / or the unique identifier of the body-in-white;

[0027] If the obtained identification information is only the identity of the skid, then the working status of the skid is determined to be idle.

[0028] If the acquired identification information includes the skid's identification and the body-in-white's unique identification, then the skid's working state is determined to be the load-bearing state. When the skid's working state is the load-bearing state, then proceed to step S3.

[0029] Furthermore, S3: Employing a preset control strategy, the skid carrying the body-in-white to be painted is transported to the painting workshop to complete the painting process of the body-in-white, specifically including:

[0030] S31: Determine whether the current body-in-white at the automated inbound / outbound workstation is an emergency vehicle;

[0031] S32: If it is an emergency vehicle, the current body-in-white will be directly transported from the automated inbound / outbound station to the painting workshop via the body-in-white conveyor line.

[0032] S33: If it is not an emergency vehicle, the unique identifier of the current body-in-white is compared with the unique identifier of the next body-in-white to be painted from the production plan list;

[0033] S34: If the comparison results are consistent and it is determined that the body-in-white conveyor line is in an empty state, then the current body-in-white is conveyed to the painting workshop.

[0034] S35: If the comparison results are inconsistent, the current body-in-white will be sent to the automated warehouse for caching.

[0035] Furthermore, S35: If the comparison results are inconsistent, the current body-in-white will be sent to the automated storage and retrieval system for caching, specifically including:

[0036] If the comparison results are inconsistent, obtain the unique identifier of the next body-in-white to be painted from the production plan list;

[0037] Based on the unique identifier of the next body-in-white to be painted, search the automated warehouse or body-in-white conveyor line to find the parking location of the next body-in-white to be painted;

[0038] Determine if the next body-in-white to be painted is located in the automated storage and retrieval system;

[0039] If so, the main structure of the stacker crane will be controlled to transport the next body-in-white to be painted from the automated warehouse to the painting workshop via the automated warehouse entry and exit station, and a prohibition command will be generated to prevent the current body-in-white from being transported to the automated warehouse buffer.

[0040] When the next body-in-white to be painted is delivered to the painting workshop, an authorization command is generated to control the current body-in-white to be painted to be delivered to the automated warehouse for caching;

[0041] If not, the current white body will be directly transported to the automated warehouse for caching.

[0042] Furthermore, it also includes:

[0043] S4: Idle Skid Cyclic Scheduling Steps:

[0044] S40: When the body-in-white is transferred from the skid to the painting workshop, the idle skid returns to the idle skid return conveyor line and it is determined whether the idle skid return conveyor line is full.

[0045] S41: If the idle skid return conveyor line is not full, control the idle skid return conveyor line to transport the idle skid to the body-in-white unloading station;

[0046] S42: If the idle sled returns to the conveyor line when it is full, then the idle sled is transported to the automated warehouse inbound / outbound station, and it is determined whether there is an empty material storage in the automated warehouse.

[0047] S43: If an empty material storage room exists, store the empty skid in the automated storage and retrieval system;

[0048] S44: If there is no empty material storage, the idle skid is transported to the underground return station of the idle skid in the common section to wait until the automated storage is in an empty material storage position or the idle skid return conveyor line is adjusted from a full state to a non-full state.

[0049] A vehicle-in-white dispatching system, the system comprising:

[0050] The conveying unit is used to transport skids with white bodies to be painted or empty skids to the automated inbound / outbound warehouse station.

[0051] The identification unit is used to acquire the identification information of the skids at the three-dimensional warehouse entry and exit station, and to determine the working status of the skids based on the identification information.

[0052] The control unit is configured to use a preset control strategy to transport a skid carrying a body-in-white to be painted to the painting workshop to complete the painting process of the body-in-white; wherein the conveyor line includes at least: a body-in-white conveyor line and an idle skid return conveyor line.

[0053] An electronic device includes: a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other via the communication bus; characterized in that the memory stores a computer program, which, when executed by the processor, causes the processor to perform the steps of the method.

[0054] A computer-readable storage medium storing a computer program executable by an electronic device, which, when run on the electronic device, causes the electronic device to perform the steps of the method described herein.

[0055] The above solution achieves the following beneficial technical effects:

[0056] This application provides a body-in-white scheduling device, method, system, and electronic equipment. Through the design of material conveying, identification and judgment, and hierarchical scheduling based on preset control strategies, it realizes the operation of classifying and conveying skids carrying body-in-white to be painted and idle skids to the automated inbound / outbound warehouse station. By collecting the identification information of body-in-white skids and idle skids and judging their working status, it can complete the conveying operation of body-in-white to be painted to the painting workshop according to the actual production conditions and matching the preset control strategy. At the same time, through the overall linkage operation of the body-in-white conveyor line and the idle skid return conveyor line, it realizes the orderly scheduling of body-in-white painting conveying and idle skid circulation, which can effectively avoid the operation conflict between the two types of skid conveying and adapt to flexible production rhythm. Attached Figure Description

[0057] Figure 1 This is a flowchart illustrating a method for scheduling vehicle-in-white.

[0058] Figure 2 A schematic diagram of the overall structural layout of a vehicle-in-white dispatching device;

[0059] Figures 3 to 5 Schematic diagrams of the main structure of the stacker crane from different perspectives;

[0060] Figure 6 This is a front view of the material rack. Detailed Implementation

[0061] To make the purpose, technical solution, and advantages of this application clearer, the following will be described in conjunction with the appendix. Figure 1 and Figure 2 This application will be described in further detail. It is obvious that the described embodiments are merely some, not all, of the embodiments described herein. All other embodiments obtained by those skilled in the art based on the embodiments described herein without inventive effort are within the scope of protection of this application.

[0062] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the application. The singular forms “a,” “said,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms, and “multiple” generally includes at least two unless the context clearly indicates otherwise.

[0063] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0064] It should be understood that although the terms first, second, third, etc., may be used in the embodiments of this application, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, first may also be referred to as second without departing from the scope of the embodiments of this application, and similarly, second may also be referred to as first.

[0065] Depending on the context, the words “if” or “suppose” as used here can be interpreted as “when” or “in response to determination” or “in response to detection.” Similarly, depending on the context, the phrases “if determination” or “if detection (of the stated condition or event)” can be interpreted as “when determination” or “in response to determination” or “when detection (of the stated condition or event)” or “in response to detection (of the stated condition or event).”

[0066] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device that includes said element.

[0067] It should be noted that any symbols and / or numbers present in the specification that are not marked in the accompanying drawings are not reference numerals.

[0068] See Figures 2 to 6 As shown; 1A is the first conveyor section; 2A is the first rotary roller bed; 3A is the first lifting roller bed; 4A is the second conveyor section; 5A is the three-dimensional inbound / outbound station; 6A is the white body unloading station; 7A is the fifth conveyor section; 8A is the second lifting roller bed; 9A is the idle skid underground return station; 10A is the roller bed; 3B is the main structure of the stacker crane.

[0069] See appendix Figure 2 A white body dispatching device is shown, comprising:

[0070] The body-in-white conveyor lines are arranged vertically and vertically, as well as the idle skid return conveyor lines;

[0071] The body-in-white conveyor line is used to directly transport the body-in-white from the welding workshop to the painting workshop or to the automated warehouse entry and exit station, and then transfer the body-in-white to the painting workshop via the automated warehouse entry and exit station.

[0072] The idle skid return conveyor line is used to transport idle skids to the body-in-white unloading station or to the automated warehouse via the stacker crane main structure for storage.

[0073] Specifically, this application achieves zoned operation and non-interference between the conveying and transfer of bodies-in-white awaiting painting and the cyclical operation of idle skids through the vertically and vertically arranged body-in-white conveyor line and idle skid return conveyor line. The body-in-white conveyor line can deliver bodies-in-white directly to the painting workshop or transfer them to the painting workshop via the automated warehouse entry and exit station according to production needs, which can adapt to various working conditions such as urgent body-in-white and planned production, and has strong scheduling flexibility. The idle skid return conveyor line can directly transport idle skids to the body-in-white unloading station for recycling, and when the working conditions are limited, send them to the automated warehouse entry and exit station by the stacker crane main structure for temporary storage, so as to avoid the problem of idle skid congestion and stagnation, thus improving the overall efficiency of the welding and painting logistics flow and the stability of production operation.

[0074] In one specific embodiment, the body-in-white conveyor line and the idle skid return conveyor line are generally L-shaped structures;

[0075] The body-in-white conveyor line includes:

[0076] The first conveyor section is connected to the second conveyor section via a first rotary roller bed; wherein, a first lifting roller bed is provided at the end of the first conveyor section away from the first rotary roller bed; and the workstation corresponding to the first lifting roller bed is the white body unloading workstation.

[0077] The first lifting roller bed returns the idle skid to the corresponding end of the conveyor line and transports it to the body-in-white unloading station to receive the body-in-white transported by the welding workshop.

[0078] The second conveyor section has a three-dimensional inbound / outbound station located at the end furthest from the first rotary bed;

[0079] The automated warehouse entry and exit station is used to transport idle skids or skids carrying bodies-in-white to be painted to the automated warehouse, or to transport skids carrying bodies-in-white to be painted to the painting workshop through a common section.

[0080] The common section includes: a fifth conveyor section and a second lifting roller bed; wherein, the workstation corresponding to the second lifting roller bed is the underground return workstation of the idle skid;

[0081] The second lifting roller bed is used to transport the idle skids conveyed by the fourth conveyor section to the inbound / outbound workstations of the automated warehouse.

[0082] Specifically, the first rotating roller bed connects the first and second conveyor sections, while the first lifting roller bed connects the idle skid return conveyor line to the body-in-white unloading station, transporting the idle skids to the unloading station to receive the body-in-white coming off the welding workshop, thus achieving the cyclical reuse of skids. The automated inbound / outbound station at the end of the second conveyor section completes the transfer of skids carrying body-in-white awaiting painting and idle skids to the automated warehouse. It can also directly transport body-in-white awaiting painting to the painting workshop via a common section, adapting to various working conditions such as direct painting and automated warehouse buffering and scheduling. The common section, composed of the fifth conveyor section and the second lifting roller bed, enables the transfer of idle skids to the automated warehouse inbound / outbound station, achieving orderly and partitioned operation of body-in-white transport, idle skid return, buffering, and scheduling without interference. The advantage of this design is that it can efficiently improve the material flow efficiency and scheduling stability of the entire production line, adapting to flexible production cycle requirements.

[0083] In one specific embodiment, the idle skid return conveyor line includes: a third conveying section, a second rotary roller bed, and a fourth conveying section;

[0084] The third teleportation segment is located directly below the first teleportation segment, and the fourth teleportation segment is located directly below the second teleportation segment.

[0085] The third conveyor section is connected to the fourth conveyor section via the second rotating roller bed.

[0086] The first and third transmission segments have the same length, and the second and fourth transmission segments have the same length.

[0087] It is understood that this application designs the idle skid return conveyor line as a third conveyor section, a second rotary roller bed, and a fourth conveyor section. The length of the third conveyor section corresponds to that of the first conveyor section, and the length of the fourth conveyor section corresponds to that of the second conveyor section. The third conveyor section is located directly below the first conveyor section, and the fourth conveyor section is located directly below the second conveyor section. This vertical arrangement achieves the design advantage of ensuring that the two logistics paths of body-in-white conveying and idle skid return do not intersect or interfere with each other. The second rotary roller bed enables the turning connection between the third and fourth conveyor sections, matching the L-shaped overall direction of the upper body-in-white conveyor line. This results in high overall space utilization. While ensuring the smooth operation of the body-in-white conveyor line, it also realizes the closed-loop circulation return of the idle skid, thereby avoiding the technical problems of logistics line congestion and interference.

[0088] In this embodiment, the first to fifth conveyor sections each include several continuously arranged roller beds.

[0089] See Figures 2-6 As shown, the main structure of the stacker crane includes:

[0090] Stacker crane 31, overhead rail 1, ground rail 10 and material rack 34.

[0091] Stacker crane 31 is used to transfer car bodies or empty skids from the automated warehouse entrance to the rack; overhead rail 1, installed above the automated warehouse aisle, together with ground rail 10, forms the stacker crane's track system, used for precise horizontal guidance and auxiliary support of stacker crane 31, preventing stacker crane 31 from tipping over; ground rail 10, installed on the aisle floor of the automated warehouse, bears most of the weight of stacker crane 31, provides the drive surface for stacker crane 31, provides vertical guidance and constraint for stacker crane 31, and provides initial horizontal guidance for stacker crane 31; rack 34 is used to store empty skids or car bodies carried by skids, such as... Figure 6 The material racks 34 are arranged in three layers, with 10 storage locations on each layer, for a total of 30 storage locations.

[0092] The main structure of the stacker crane includes: uprights 4, upper crossbeam 3, and lower crossbeam 11. Uprights 4 are the most important vertical frame of the stacker crane, possessing high strength and rigidity to withstand bending and torsional loads. The lifting mechanism and loading platform 15 move up and down along the guide rails on the upper uprights 4. The upper crossbeam 3 connects the tops of the two uprights 4, forming a stable "gate"-shaped frame with the uprights 4 and lower crossbeam 11. It is usually equipped with overhead guide wheels 2, moving horizontally along the overhead rail 1. The lower crossbeam 11 is the bottom frame of the stacker crane, equipped with a wheel system 9 (driving wheels, driven wheels, and ground rail horizontal guide wheels), directly bearing the weight of the entire equipment. The wheel system 9 (driving wheels, driven wheels, and ground rail horizontal guide wheels) moves horizontally along the ground rail 10.

[0093] like Figure 3 and Figure 6 As shown, the stacker crane's motion mechanism includes: a traveling mechanism, a lifting mechanism, and a fork mechanism. The traveling mechanism includes: a drive motor 19, a brake 18, and a wheel system 9 (driving drive wheels, driven wheels, and horizontal guide wheels on the ground rail) to drive the entire stacker crane forward and backward on the track within the aisle, positioning it to the target cargo train. The lifting mechanism includes a lifting motor 12, a reducer 14, a drum 13, a sprocket 5, a wire rope 20, and a safety device. The motor 12 drives the drum 13 to wind and unwind the wire rope 20 to raise or lower the loading platform 15. The fork mechanism 16 adopts a double-fork structure, driven by a fork motor, and uses gears and chains to achieve the extension and retraction of the forks, thereby controlling the storage and retrieval operations of the skids or body-in-white on the loading platform 15.

[0094] like Figure 3 The loading platform 15 is equipped with a fork mechanism 16, loading platform guide wheels 6, loading platform top wheels 7, and loading platform upright plate 17. Various detection sensors are arranged on the loading platform upright plate 17. The loading platform 15 is a platform that directly supports the empty skid or body-in-white and is driven up and down by a lifting mechanism.

[0095] On the other hand, this application provides a method for scheduling a white body, the method comprising the following steps:

[0096] S1: Material conveying step: Used to convey skids with white bodies to be painted or idle skids to the automated inbound / outbound warehouse station respectively;

[0097] S2: Obtain the identification information of the skids at the automated inbound / outbound workstation, and determine the working status of the skids based on the identification information. When the skids are in the load-bearing state, proceed to the next step.

[0098] S3: Using a preset control strategy, the skid carrying the body-in-white to be painted is transported to the painting workshop to complete the painting process of the body-in-white; wherein, the conveyor line includes at least: a body-in-white conveyor line and an idle skid return conveyor line.

[0099] Specifically, through the design of material conveying, identification and judgment, and hierarchical scheduling based on preset control strategies, the system realizes the classified transportation of skids carrying the body-in-white to be painted and idle skids to the automated inbound and outbound warehouse workstation. By collecting the identification information of the body-in-white skids and idle skids and judging their working status, the system can match the preset control strategy according to the actual production conditions to complete the transportation of the body-in-white to be painted to the painting workshop. At the same time, through the overall linkage operation of the body-in-white conveyor line and the idle skid return conveyor line, the system realizes the orderly scheduling of the body-in-white painting transportation and the cyclical flow of idle skids, which can effectively avoid the operational conflicts between the two types of skid transportation and adapt to flexible production rhythm.

[0100] In one specific embodiment, S2, the identification information of the skid at the three-dimensional inbound / outbound workstation is obtained, and the working status of the skid is determined based on the identification information, specifically including:

[0101] Obtain the identification information of the skid, wherein the identification information includes at least: the skid's identification mark and / or the unique identifier of the body-in-white;

[0102] If the obtained identification information is only the identity of the skid, then the working status of the skid is determined to be idle.

[0103] If the acquired identification information includes the skid's identification and the body-in-white's unique identification, then the skid's working state is determined to be the load-bearing state. When the skid's working state is the load-bearing state, then proceed to step S3.

[0104] In one specific embodiment, S3: Using a preset control strategy, the skid carrying the body-in-white to be painted is transported to the painting workshop to complete the painting process of the body-in-white, specifically including:

[0105] S31: Determine whether the current body-in-white at the automated inbound / outbound workstation is an emergency vehicle;

[0106] S32: If it is an emergency vehicle, the current body-in-white will be directly transported from the automated inbound / outbound station to the painting workshop via the body-in-white conveyor line.

[0107] S33: If it is not an emergency vehicle, the unique identifier of the current body-in-white is compared with the unique identifier of the next body-in-white to be painted from the production plan list;

[0108] S34: If the comparison results are consistent and it is determined that the body-in-white conveyor line is in an empty state, then the current body-in-white is conveyed to the painting workshop.

[0109] S35: If the comparison results are inconsistent, the current body-in-white will be sent to the automated warehouse for caching.

[0110] Specifically, this application uses a preset control strategy to schedule and control the skids carrying the bodies of white to be painted. First, it assesses the urgency of the current bodies of white at the automated inbound / outbound station, prioritizing the direct transport of urgent vehicles to the painting workshop and ensuring priority for production orders that need to be cut in line. For non-urgent vehicles, it compares the unique identifier of the current body of white with the unique identifier of the next body of white to be painted in the production plan list, and makes a comprehensive judgment based on the empty status of the body of white conveyor line to match the production plan rhythm and transport the body of white in an orderly manner. For body of white with inconsistent priority comparisons, they are sent to the automated warehouse for buffering and waiting. The advantage of this design is that it can meet the needs of urgent production orders while strictly following the painting production plan sequence, thereby avoiding chaotic body of white transport sequence and line congestion.

[0111] In one specific embodiment, S35: If the comparison results are inconsistent, the current body-in-white is sent to the automated storage and retrieval system for caching, specifically including:

[0112] If the comparison results are inconsistent, obtain the unique identifier of the next body-in-white to be painted from the production plan list;

[0113] Based on the unique identifier of the next body-in-white to be painted, search the automated warehouse or body-in-white conveyor line to find the parking location of the next body-in-white to be painted;

[0114] Determine if the next body-in-white to be painted is located in the automated storage and retrieval system;

[0115] If so, the main structure of the stacker crane will be controlled to transport the next body-in-white to be painted from the automated warehouse to the painting workshop via the automated warehouse entry and exit station, and a prohibition command will be generated to prevent the current body-in-white from being transported to the automated warehouse buffer.

[0116] When the next body-in-white to be painted is delivered to the painting workshop, an authorization command is generated to control the current body-in-white to be painted to be delivered to the automated warehouse for caching;

[0117] If not, the current white body will be directly transported to the automated warehouse for caching.

[0118] Specifically, when the current body-in-white does not match the production plan sequence, this application does not require blindly storing and caching it. Instead, it prioritizes retrieving the production plan list to obtain the unique identifier of the next body-in-white to be painted. Based on this identifier, it traverses and searches the automated warehouse and body-in-white conveyor lines to locate the actual parking position of the next body-in-white to be painted. By determining whether the next body-in-white to be painted is stored in the automated warehouse, hierarchical scheduling is achieved: if the target vehicle is in the automated warehouse, the stacker crane is controlled to retrieve it and transport it to the painting workshop. At the same time, a prohibition command is issued to lock the current body-in-white from being stored. The restriction is lifted and the current body-in-white is allowed to be stored and cached after the next vehicle in the sequence is transported. If the target vehicle is not in the automated warehouse, the current body-in-white is directly stored and cached. This design adopts a pre-scheduling design of prioritizing vehicle output and then staggering storage, combined with command control, which can greatly reduce the time cost of idle waiting at workstations and conveyor lines, and reduce production cycle waste and logistics congestion.

[0119] Furthermore, it also includes:

[0120] S4: Idle Skid Cyclic Scheduling Steps:

[0121] S40: When the body-in-white is transferred from the skid to the painting workshop, the idle skid returns to the idle skid return conveyor line and it is determined whether the idle skid return conveyor line is full.

[0122] S41: If the idle skid return conveyor line is not full, control the idle skid return conveyor line to transport the idle skid to the body-in-white unloading station;

[0123] S42: If the idle sled returns to the conveyor line when it is full, then the idle sled is transported to the automated warehouse inbound / outbound station, and it is determined whether there is an empty material storage in the automated warehouse.

[0124] S43: If an empty material storage room exists, store the empty skid in the automated storage and retrieval system;

[0125] S44: If there is no empty material storage, the idle skid is transported to the underground return station of the idle skid in the common section to wait until the automated storage is in an empty material storage position or the idle skid return conveyor line is adjusted from a full state to a non-full state.

[0126] Specifically, this application sets the idle skid cyclic scheduling step after the body-in-white is unloaded in the painting workshop. This is achieved by automatically triggering the idle skid return scheduling, firstly by judging the full load status of the return conveyor line in real time to realize diversion control; when the return conveyor line is not full, the idle skid can be directly transported to the body-in-white unloading station for reuse, ensuring a continuous supply of skids to the welding station; when the return conveyor line is full and causes congestion, the idle skid is promptly transferred to the automated warehouse entry / exit station, and the availability of warehouse space is further assessed. If there is a space available, the skid is temporarily stored in the warehouse; otherwise, it is controlled to wait at a fixed point in the underground return station until a space is released in the automated warehouse or the return conveyor line becomes available before continuing scheduling. The advantages of this design are that it improves the overall skid turnover rate, the regularity of the production line logistics layout, and the overall stability of production operation.

[0127] It should be noted that when idle skids are being used for outbound and inbound operations, they must give way to skids carrying bodies-in-white to be painted. When a task occupies a workstation or a stacker crane conflict occurs, the scheduling task for bodies-in-white to be painted shall be executed first, and the scheduling task for idle skids shall be put on standby.

[0128] On the other hand, this application provides a white body dispatching system, the system comprising:

[0129] The conveying unit is used to transport skids with white bodies to be painted or empty skids to the automated inbound / outbound warehouse station.

[0130] The identification unit is used to acquire the identification information of the skids at the three-dimensional warehouse entry and exit station, and to determine the working status of the skids based on the identification information.

[0131] The control unit is configured to use a preset control strategy to transport a skid carrying a body-in-white to be painted to the painting workshop to complete the painting process of the body-in-white; wherein the conveyor line includes at least: a body-in-white conveyor line and an idle skid return conveyor line.

[0132] On the other hand, this application provides an electronic device, including: a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other through the communication bus; characterized in that the memory stores a computer program, and when the computer program is executed by the processor, the processor performs the steps of the method.

[0133] On the other hand, this application provides a computer-readable storage medium storing a computer program executable by an electronic device, which, when run on the electronic device, causes the electronic device to perform the steps of the method described herein.

[0134] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A white body dispatching device, characterized in that, include: The body-in-white conveyor lines are arranged vertically and vertically, as well as the idle skid return conveyor lines; The body-in-white conveyor line is used to directly transport the body-in-white from the welding workshop to the painting workshop or to the automated warehouse entry and exit station, and then transfer the body-in-white to the painting workshop via the automated warehouse entry and exit station. The idle skid return conveyor line is used to transport idle skids to the body-in-white unloading station or to the automated warehouse via the stacker crane main structure for storage.

2. The body-in-white dispatching device according to claim 1, characterized in that, The overall structure of the body-in-white conveyor line and the idle skid return conveyor line is L-shaped. The body-in-white conveyor line includes: The first conveyor section is connected to the second conveyor section via a first rotary roller bed; wherein, a first lifting roller bed is provided at the end of the first conveyor section away from the first rotary roller bed; and the workstation corresponding to the first lifting roller bed is the white body unloading workstation. The first lifting roller bed returns the idle skid to the corresponding end of the conveyor line and transports it to the body-in-white unloading station to receive the body-in-white transported by the welding workshop. The second conveyor section has a three-dimensional inbound / outbound station located at the end furthest from the first rotary bed; The automated warehouse entry and exit station is used to transport idle skids or skids carrying bodies-in-white to be painted to the automated warehouse, or to transport skids carrying bodies-in-white to be painted to the painting workshop through a common section. The common section includes: a fifth conveyor section and a second lifting roller bed; wherein, the workstation corresponding to the second lifting roller bed is the underground return workstation of the idle skid; The second lifting roller bed is used to transport the idle skids conveyed by the fourth conveyor section to the inbound / outbound workstations of the automated warehouse.

3. The body-in-white dispatching device according to claim 2, characterized in that, The idle skid return conveyor line includes: a third conveyor section, a second rotary roller bed, and a fourth conveyor section; The third teleportation segment is located directly below the first teleportation segment, and the fourth teleportation segment is located directly below the second teleportation segment. The third conveyor section is connected to the fourth conveyor section via the second rotating roller bed. The first and third transmission segments have the same length, and the second and fourth transmission segments have the same length.

4. A method for scheduling vehicle-in-white bodies, characterized in that, The method includes the following steps: S1: Material conveying step: Used to convey skids with white bodies to be painted or idle skids to the automated inbound / outbound warehouse station respectively; S2: Obtain the identification information of the skids at the automated inbound / outbound workstation, and determine the working status of the skids based on the identification information. When the skids are in the load-bearing state, proceed to the next step. S3: Using a preset control strategy, the skid carrying the body-in-white to be painted is transported to the painting workshop to complete the painting process of the body-in-white; wherein, the conveyor line includes at least: a body-in-white conveyor line and an idle skid return conveyor line.

5. The method according to claim 4, characterized in that, S2, acquire the identification information of the skids at the automated inbound / outbound workstation, and determine the working status of the skids based on the identification information, specifically including: Obtain the identification information of the skid, wherein the identification information includes at least: the skid's identification mark and / or the unique identifier of the body-in-white; If the obtained identification information is only the identity of the skid, then the working status of the skid is determined to be idle. If the acquired identification information includes the skid's identification and the body-in-white's unique identification, then the skid's working state is determined to be the load-bearing state. When the skid's working state is the load-bearing state, then proceed to step S3.

6. The method according to claim 5, characterized in that, S3: Using a preset control strategy, the skid carrying the body-in-white to be painted is transported to the painting workshop to complete the painting process of the body-in-white, specifically including: S31: Determine whether the current body-in-white at the automated inbound / outbound workstation is an emergency vehicle; S32: If it is an emergency vehicle, the current body-in-white will be directly transported from the automated inbound / outbound station to the painting workshop via the body-in-white conveyor line. S33: If it is not an emergency vehicle, the unique identifier of the current body-in-white is compared with the unique identifier of the next body-in-white to be painted from the production plan list; S34: If the comparison results are consistent and it is determined that the body-in-white conveyor line is in an empty state, then the current body-in-white is conveyed to the painting workshop. S35: If the comparison results are inconsistent, the current body-in-white will be sent to the automated warehouse for caching.

7. The method according to claim 6, characterized in that, S35: If the comparison results are inconsistent, the current body-in-white will be sent to the automated storage and retrieval system for caching, specifically including: If the comparison results are inconsistent, obtain the unique identifier of the next body-in-white to be painted from the production plan list; Based on the unique identifier of the next body-in-white to be painted, search the automated warehouse or body-in-white conveyor line to find the parking location of the next body-in-white to be painted; Determine if the next body-in-white to be painted is located in the automated storage and retrieval system; If so, the main structure of the stacker crane will be controlled to transport the next body-in-white to be painted from the automated warehouse to the painting workshop via the automated warehouse entry and exit station, and a prohibition command will be generated to prevent the current body-in-white from being transported to the automated warehouse buffer. When the next body-in-white to be painted is delivered to the painting workshop, an authorization command is generated to control the current body-in-white to be painted to be delivered to the automated warehouse for caching; If not, the current white body will be directly transported to the automated warehouse for caching.

8. The method according to claim 7, characterized in that, Also includes: S4: Idle Skid Cyclic Scheduling Steps: S40: When the body-in-white is transferred from the skid to the painting workshop, the idle skid returns to the idle skid return conveyor line and it is determined whether the idle skid return conveyor line is full. S41: If the idle skid return conveyor line is not full, control the idle skid return conveyor line to transport the idle skid to the body-in-white unloading station; S42: If the idle sled returns to the conveyor line when it is full, then the idle sled is transported to the automated warehouse inbound / outbound station, and it is determined whether there is an empty material storage in the automated warehouse. S43: If an empty material storage room exists, store the empty skid in the automated storage and retrieval system; S44: If there is no empty material storage, the idle skid is transported to the underground return station of the idle skid in the common section to wait until the automated storage is in an empty material storage position or the idle skid return conveyor line is adjusted from a full state to a non-full state.

9. A vehicle-in-white dispatching system, characterized in that, The system includes: The conveying unit is used to transport skids with white bodies to be painted or empty skids to the automated inbound / outbound warehouse station. The identification unit is used to acquire the identification information of the skids at the three-dimensional warehouse entry and exit station, and to determine the working status of the skids based on the identification information. The control unit is configured to use a preset control strategy to transport a skid carrying a body-in-white to be painted to the painting workshop to complete the painting process of the body-in-white; wherein the conveyor line includes at least: a body-in-white conveyor line and an idle skid return conveyor line.

10. An electronic device, comprising: The system comprises a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other via the communication bus; characterized in that the memory stores a computer program, which, when executed by the processor, causes the processor to perform the steps of the method described in any one of claims 4 to 8.

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