Operation guidance control system for automobile general assembly workshop

Abstract

The invention discloses an operation guidance control system for an automobile general assembly workshop, and the system comprises an operation guidance display screen, a vehicle positioning module, a communication module, and a control module, and the vehicle positioning module is used for obtaining the positioning information of each vehicle on a current production line. The communication module is used for acquiring vehicle production configuration information of each station on the current production line, and the control module is used for generating operation guidance information according to the positioning information and the vehicle production configuration information and pushing the operation guidance information to the operation guidance display screen for displaying. According to the invention, operation guidance for automobile assembly work can be intelligently provided for workers at each station in real time, so that the quality of the automobile assembly work can be guaranteed and improved, and due to the fact that the operation guidance information is generated, pushed and visually displayed in the form of computer data, real-time pushing and updating can be realized, and the working efficiency is improved. And the method has good adaptability to the assembly process, especially the personalized process. The method is widely applied to the technical field of automobile manufacturing.

Description

Technical Field

[0001] This invention relates to the field of automobile manufacturing technology, and in particular to a work guidance and control system for automobile final assembly workshops. Background Technology

[0002] In current automobile production assembly workshops, paper work instructions are used to guide employees' operations. However, this approach has obvious drawbacks: (1) Version confusion and inconsistent execution: Whenever the product model or process changes, the paper work instructions must be reprinted and distributed to employees, and different versions are easily confused, resulting in inconsistent execution; (2) Delayed information updates: Information updates require reprinting paper documents and distributing them manually, which leads to a delay in operators obtaining information and reduces production efficiency; (3) Poor adaptability to personalized working conditions: Paper work instructions cannot be dynamically adjusted according to real-time production data and cannot effectively cope with complex and personalized working conditions; (4) Employees cannot understand the quality information of the current operation in real time. When quality problems occur, they can usually only be found at the quality gate of the assembly workshop, which not only increases the probability of problems but also prolongs the rework time. Summary of the Invention

[0003] In view of at least one of the above-mentioned technical problems, the purpose of the present invention is to provide a work guidance and control system for automobile assembly workshops.

[0004] Embodiments of the present invention include a work instruction control system for an automobile assembly workshop, the automobile assembly workshop including a production line, the production line including multiple workstations, each workstation being used for corresponding workers to perform automobile assembly work, the work instruction control system including: Work instruction display screen; Vehicle positioning module; the vehicle positioning module is used to obtain the positioning information of each vehicle on the current production line; the positioning information indicates the position of the corresponding vehicle at the workstation on the production line; Communication module; the communication module is used to obtain vehicle production configuration information for each workstation on the current production line; A control module; the control module is used to generate work guidance information based on the positioning information and the vehicle production configuration information, and push the work guidance information to the work guidance display screen for display.

[0005] Furthermore, the communication module is also used to acquire process change information and send the process change information to the control module; The control module is also used to push the process change information to the work instruction display screen, control the work instruction display screen to display a QR code, and when the QR code is detected to be scanned, control the work instruction display screen to display the process change information.

[0006] Furthermore, the work instruction display screen includes multiple sub-display screens, each of which displays information to the corresponding workstation.

[0007] Further, the step of generating work guidance information based on the positioning information and the vehicle production configuration information includes: When the location information corresponding to the first vehicle is detected to match the first workstation, the work guidance information corresponding to the first workstation is generated according to the vehicle production configuration information corresponding to the first workstation and the first vehicle; wherein, the first vehicle is any one of the vehicles on the current production line, and the first workstation is any one of the multiple workstations.

[0008] Furthermore, the step of pushing the work instruction information to the work instruction display screen for display includes: The work instruction information corresponding to the first workstation is pushed to the sub-display screen corresponding to the first workstation for display.

[0009] Furthermore, the work instruction control system also includes: The detection module includes multiple detection units, each of which detects the current operating status of its corresponding workstation.

[0010] Furthermore, the control module is also used to generate quality prompt information corresponding to the first workstation based on the current operation status and the operation guidance information corresponding to the first workstation, and push the quality prompt information to the sub-display screen corresponding to the first workstation for display.

[0011] Furthermore, the work instruction control system also includes: A quality control module; the quality control module is used to, when it detects that the positioning information corresponding to the first vehicle matches the second workstation, call the detection unit corresponding to the second workstation to monitor the first vehicle, obtain the subsequent quality inspection information corresponding to the first vehicle, and send the subsequent quality inspection information to the control module; wherein, the second workstation is the workstation in the production line that is after the first workstation; The control module is used to compare the subsequent quality inspection information with the quality prompt information corresponding to the first workstation, generate first feedback information based on the comparison result, and push the first feedback information to the sub-display screen corresponding to the first workstation for display.

[0012] Furthermore, the quality control module is also used to, when it detects that the positioning information corresponding to the first vehicle matches the tail station, call the detection unit corresponding to the tail station to monitor the first vehicle, obtain the final quality inspection information corresponding to the first vehicle, and send the final quality inspection information to the control module; wherein, the tail station is the last station in the production line; The control module is further configured to compare the final quality inspection information with the quality prompt information corresponding to each of the workstations, determine the work score corresponding to each workstation based on the comparison results, generate second feedback information corresponding to the work score for work scores that are lower than a first score threshold but higher than a second score threshold, and push the second feedback information to the sub-display screen corresponding to the workstation for display, and generate stop instruction information corresponding to the work score for work scores that are lower than the second score threshold, and push the stop instruction information to the corresponding workstation.

[0013] Furthermore, the quality control module is also used to, when it is detected that the positioning information corresponding to the first vehicle matches the first workstation, call the detection unit corresponding to the first workstation to monitor the first vehicle, obtain the real-time quality inspection information corresponding to the first vehicle, and send the real-time quality inspection information to the control module; The control module is used to compare the real-time quality inspection information with the quality prompt information corresponding to the first workstation, generate third feedback information based on the comparison result, determine the third workstation, adjust the work instruction information corresponding to the third workstation based on the third feedback information, and push the adjusted work instruction information to the sub-display screen corresponding to the third workstation for display.

[0014] The beneficial effects of the embodiments of the present invention are as follows: the work guidance control system for automobile assembly workshop in the embodiments can intelligently and in real time provide work guidance for automobile assembly work to the workers at each workstation, thereby helping to ensure and improve the quality of automobile assembly work. Since the work guidance information is generated, pushed and visualized in the form of computer data, it can realize real-time push and update, and has good adaptability to assembly processes, especially personalized processes. Attached Figure Description

[0015] Figure 1 This is a schematic diagram showing the connection between the work instruction control system and the external system in the embodiment; Figure 2 This is a schematic diagram of the architecture of the work instruction control system in the embodiment; Figure 3 This is a schematic diagram of the production line in the automobile final assembly workshop in the embodiment; Figure 4 This is a schematic diagram illustrating the principle of steps S1-S2 executed by the control module in the embodiment; Figure 5 This is a schematic diagram illustrating the principle of steps S3-S4 executed by the control module in the embodiment; Figure 6 This is a schematic diagram illustrating the principle of steps S5-S6 executed by the control module in the embodiment; Figure 7 This is a schematic diagram illustrating the principle of steps S7-S8 executed by the control module in the embodiment; Figure 8 This is a schematic diagram illustrating the principle of steps S9-S11 executed by the control module in the embodiment. Detailed Implementation

[0016] This embodiment provides a job instruction control system. (Refer to...) Figure 1 The work instruction control system connects with external systems of automakers, such as OTD (Order to Delivery) systems and process systems, to obtain and process information from these external systems, and provide work instructions and work control to workers in the automobile assembly workshop. This enables workers to make good use of tools such as conveyor PLCs, equipment PLCs, and field equipment to perform the automobile assembly tasks they are responsible for at their workstations.

[0017] In this embodiment, the architecture of the job instruction control system is as follows: Figure 2 As shown, it includes hardware components such as a work instruction display screen, a vehicle positioning module, a communication module, a control module, a detection module, and a quality control module, and executes software programs such as precise queuing, work instruction, setting change reminders, quality visualization, quality control, and human-machine interaction to realize the corresponding functional modules.

[0018] In this embodiment, the job instruction control system can be applied to Figure 3 The image shows a production line in a car assembly workshop. (Refer to...) Figure 3 The production line is an assembly line with multiple workstations, each responsible for different or the same assembly tasks. After entering the production line, vehicles pass through each workstation sequentially along a certain conveying direction. Once a vehicle arrives at a workstation, it can remain there for a period of time, either stationary or continuously conveyed, thus providing the workers at that workstation with time to perform their respective assembly tasks.

[0019] Reference Figure 3 The production line can be in the form of a large plate line or a conveyor chain line.

[0020] In this embodiment, refer to Figure 3 The vehicle positioning module in the work instruction control system obtains the positioning information of each vehicle on the production line. For example, for the first vehicle, its positioning information indicates the position of the first vehicle on the production line, that is, which position the first vehicle is currently in on the production line.

[0021] Specifically, different types of vehicle positioning modules with different operating principles can be used for different types of production lines. For example, refer to... Figure 3 For large-plate production lines, an RFID module can be installed at the entrance of the production line as a vehicle positioning module. The RFID module can communicate with the tags on each vehicle entering the production line to detect the vehicle number and the time of entry into the production line. Since the conveying speed of the production line is generally uniform, the positioning information of each vehicle at each time can be calculated by the time of entry into the production line and the time elapsed, so as to obtain the accurate queue of each vehicle in the production line.

[0022] Reference Figure 3 For conveyor belt production lines, each workstation can be equipped with an RFID module with an encoder value as a vehicle positioning module. The RFID module at each workstation communicates with the tags on the vehicles entering the workstation area to detect the vehicle number and the time of entry into the workstation, thereby obtaining the positioning information of each vehicle at various times and obtaining the accurate queue of each vehicle in the production line.

[0023] The vehicle positioning module sends the obtained positioning information to the control module for processing.

[0024] In this embodiment, refer to Figure 3 At the same time, multiple vehicles may be being assembled on the production line, and the process performed on each vehicle is the same. Therefore, we will take one specific vehicle, namely the first vehicle, as an example for explanation.

[0025] In this embodiment, the work instruction control system for the automobile assembly workshop includes a work instruction display screen. Specifically, the work instruction display screen can be a large-screen component that can be installed in a public area of ​​the automobile assembly workshop so that workers at each workstation can see the content displayed on the work instruction display screen; alternatively, multiple separate sub-display screens can be used as work instruction display screens, with each sub-display screen installed at a corresponding workstation, so that only workers at that workstation can see the sub-display screen installed at that workstation, thereby improving the display effect of the work instruction display screen.

[0026] In this embodiment, the communication module can communicate with external systems such as the OTD system and the process system to obtain vehicle production configuration information for each workstation on the current production line. This vehicle production configuration information represents the production configuration required for each vehicle (e.g., the first vehicle) at each workstation on the production line (e.g., the first workstation), including the names and types of components to be assembled and the required performance indicators. The communication module then sends the obtained vehicle production configuration information to the control module for processing.

[0027] In this embodiment, the control module is used to perform the following steps: S1. Generate work guidance information based on location information and vehicle production configuration information; S2. Push the work instruction information to the work instruction display screen for display.

[0028] The principle of steps S1-S2 is as follows: Figure 4 As shown.

[0029] Taking a specific first vehicle and a specific first workstation as an example, refer to Figure 4 In step S1, the control module determines the position of the first vehicle on the production line in real time based on the positioning information. When the positioning information corresponding to the first vehicle matches the first workstation, indicating that the first vehicle has entered the first workstation, the control module generates the corresponding work instruction information for the first workstation based on the vehicle production configuration information of the first workstation and the first vehicle. The vehicle production configuration information of the first workstation and the first vehicle indicates the configuration (including hardware and software configuration) that the first vehicle needs to achieve after assembly work at the first workstation. The work instruction information corresponding to the first workstation indicates the assembly work that the workers at the first workstation need to perform to achieve this vehicle production configuration information. The work instruction information can specifically take the form of work steps or procedures. For example, if the first workstation is a tightening workstation, then the work instruction information corresponding to the first workstation can specifically be the steps and procedures for tightening the components in the first vehicle.

[0030] Reference Figure 4 In step S2, the control module pushes the work instruction information corresponding to the first workstation to the sub-display screen installed at the first workstation so that the workers at the first workstation can refer to the work instruction information to assemble the first vehicle that has entered the first workstation.

[0031] The above steps S1-S2 are illustrated using a specific first workstation and a first vehicle as an example. The control module can generate different work guidance information based on the combination of other workstations and vehicles, and push the work guidance information to the sub-display screen of the corresponding workstation for display, thereby providing work guidance to the workers at each workstation for the vehicle to be assembled.

[0032] In this embodiment, by executing steps S1-S2, work instructions for automobile assembly can be provided to workers at each workstation in an intelligent and real-time manner, which helps to ensure and improve the quality of automobile assembly work. Since the work instructions information is generated, pushed and visualized in the form of computer data, it can be pushed and updated in real time and has good adaptability to assembly processes, especially personalized processes.

[0033] In this embodiment, the work instruction control system also includes a detection module. Specifically, the detection module consists of multiple detection units, each installed at a corresponding workstation. For example, a camera can be used as a detection unit. Taking the detection unit installed at the first workstation as an example, the detection unit captures images of the worker's posture and / or the assembled vehicle passing through the workstation, thereby obtaining images of the worker and / or the vehicle. By performing feature recognition on the images, the system obtains motion information such as the worker's posture and range of motion, and / or component morphology information such as the component position and product (semi-finished product) shape of the vehicle, which serves as the current working state of the first workstation. Therefore, the current working state of the first workstation represents the assembly work actually performed by the worker at the first workstation, and / or the work effect achieved by the actual assembly work.

[0034] In this embodiment, with the detection module included, the control module can also perform the following steps: S3. Generate quality prompt information for the first workstation based on the current work status and work instruction information corresponding to the first workstation; S4. Push the quality prompt information to the sub-display screen corresponding to the first workstation for display.

[0035] The principle of steps S3-S4 is as follows: Figure 5 As shown.

[0036] Taking a specific first vehicle and a specific first workstation as an example, refer to Figure 5In step S3, the control module generates quality prompt information corresponding to the first workstation based on the current work status and work instruction information. Specifically, since the work instruction information corresponding to the first workstation represents the standard steps that the worker at the first workstation must perform during assembly, the control module can use the work instruction information as a benchmark to compare the current work status with the work instruction information, calculate the matching degree between the current work status and the work instruction information, and use the calculated matching degree as the quality prompt information corresponding to the first workstation. The higher the matching degree between the current work status and the work instruction information, the closer the steps, processes, and actions performed by the worker at the first workstation when assembling the first vehicle are to the work instruction information, and the higher the work quality represented by the quality prompt information corresponding to the first workstation; conversely, the lower the work quality represented by the quality prompt information corresponding to the first workstation.

[0037] Reference Figure 5 In step S4, the control module pushes the quality prompt information obtained in step S3 to the sub-display screen corresponding to the first workstation for display. This allows the workers at the first workstation to understand the quality of the assembly steps, processes, and actions they are performing in real time by viewing the quality prompt information displayed on the sub-display screen. This enables them to maintain or adjust their work, which is beneficial for maintaining good and stable assembly quality at this workstation.

[0038] Specifically, if the first workstation is a tightening workstation, the work instruction information for the first workstation can indicate the tightening steps (the order of the parts to be tightened) and tightening range to be performed by the worker. The current working status of the first workstation can indicate the actual steps and tightening range performed by the worker at the first workstation. By executing steps S3-S4, the control module displays quality prompts on the sub-display screen corresponding to the first workstation to indicate whether any abnormalities such as unqualified tightening or missed tightening have occurred at the first workstation. The sub-display screen can issue alarms for these abnormalities, enabling the worker at the first workstation to correct the abnormalities in a timely manner and reducing the possibility of abnormalities occurring at the first workstation flowing to subsequent workstations.

[0039] In this embodiment, the work instruction control system is also equipped with a quality control module, which is connected to the detection module, thereby enabling the use of all detection units in the detection module.

[0040] Reference Figure 6When the first vehicle leaves the first workstation and arrives at any specific workstation (the second workstation) along the conveying direction of the production line, the quality control module detects that the positioning information corresponding to the first vehicle matches that of the second workstation, thus determining that the first vehicle has arrived at the second workstation. The quality control module then calls the detection unit corresponding to the second workstation to monitor the first vehicle and obtain subsequent quality inspection information for the first vehicle. In this embodiment, the detection unit at the second workstation can determine whether the component shape and other aspects of the first vehicle are normal after arriving at the second workstation through processes such as image capture and image feature recognition, thereby generating subsequent quality inspection information reflecting these conditions. When the quality control module calls the detection unit at the second workstation, it can set the component assembled at the first workstation as the detection target, thus making the generated subsequent quality inspection information referable to the first workstation. The quality control module then sends the detected subsequent quality inspection information to the control module.

[0041] In this embodiment, if the quality control module obtains subsequent quality inspection information, the control module can also perform the following steps: S5. Compare the subsequent quality inspection information with the quality prompt information corresponding to the first workstation; S6. Generate first feedback information based on the comparison results, and push the first feedback information to the sub-display screen corresponding to the first workstation for display.

[0042] The principle of steps S5-S6 is as follows: Figure 6 As shown. In step S5, the quality prompt information corresponding to the first workstation can be the quality prompt information obtained in step S3. That is, in the comparison performed in step S5, the comparison objects are the quality prompt information detected after the same vehicle (the first vehicle) has just completed the assembly task at the first workstation, and the subsequent quality inspection information detected after arriving at the second workstation. The control module can detect whether the subsequent quality inspection information is consistent with the quality prompt information (specifically, it is quantified by calculating similarity and other indicators), and execute step S6 to generate a first feedback information indicating a comparison result such as "the subsequent quality inspection information is consistent with the quality prompt information" or "the subsequent quality inspection information is inconsistent with the quality prompt information". (Refer to...) Figure 6 The control module sends the first feedback information to the sub-display screen corresponding to the first workstation for display.

[0043] In this embodiment, the principle of executing steps S5-S6 is as follows: By executing steps S5-S6, the workers at the first workstation can complete the assembly work of the first vehicle at this workstation. After the first vehicle goes to the second workstation, the first vehicle is re-inspected to obtain subsequent quality inspection information. By comparing the subsequent quality inspection information and the quality prompt information, the assembly work at the first workstation is reviewed, and the quality problems of the vehicle assembly work are verified a second time. This achieves zero-defect management in the production process, strengthens the ability to trace problems and respond quickly, and helps to urge workers to make timely rectifications, ensuring that the quality of vehicle products meets the standard requirements.

[0044] In this embodiment, when performing steps S5-S6, the selection of the second workstation can be arbitrary. That is, any workstation after the first workstation can be selected as the second workstation, or a workstation can be selected from among the workstations after the first workstation according to certain criteria. For example, based on workload criteria, the workstation that simultaneously satisfies "current workload is below the load threshold" and "current workload is the lowest" can be selected as the second workstation. This helps to reduce the impact on the workstations after the first workstation and ensures the assembly efficiency of the vehicle.

[0045] In this embodiment, refer to Figure 7 When the first vehicle arrives at the last workstation (tail station) along the production line's conveying direction, the quality control module detects that the positioning information of the first vehicle matches the tail station, thus confirming that the first vehicle has reached the tail station. The quality control module then calls the detection unit corresponding to the tail station to monitor the first vehicle and obtain the final quality inspection information for the first vehicle. In this embodiment, the detection unit at the tail station can determine whether the component shape and other aspects of the first vehicle are normal after arriving at the tail station through processes such as image capture and image feature recognition, thereby generating subsequent quality inspection information reflecting these conditions. When the quality control module calls the detection unit at the tail station, it can set all components assembled at previous workstations as the detection target, thus making the generated final quality inspection information referential to all previous workstations. The quality control module then sends the detected final quality inspection information to the control module.

[0046] In this embodiment, if the quality control module obtains the final quality inspection information, the control module can also perform the following steps: S7. Compare the final quality inspection information with the corresponding quality prompts for each workstation; S8. Based on the comparison results of each workstation, determine the corresponding work score for each workstation. For work scores that are lower than the first score threshold but higher than the second score threshold, generate the second feedback information corresponding to the work score and push the second feedback information to the sub-display screen corresponding to the corresponding workstation for display. For work scores that are lower than the second score threshold, generate the stop line instruction information corresponding to the work score and push the stop line instruction information to the corresponding workstation.

[0047] The principle of steps S7-S8 is as follows: Figure 7 As shown. In step S7, since the first workstation is any specific workstation, each workstation can obtain its corresponding quality prompt information through step S3, just like the first workstation. That is, in the comparison performed in step S7, the comparison objects are the quality prompt information detected after the same vehicle (the first vehicle) has just completed the assembly tasks of each workstation, and the final quality inspection information detected after reaching the last workstation. The control module can calculate the similarity between each quality prompt information and the final quality inspection information as the corresponding job score for each workstation (for example, for the first workstation, the control module calculates the similarity between the quality prompt information and the final quality inspection information of the first workstation as the job score corresponding to the first workstation), and set a first score threshold and a second score threshold, and use the first score threshold and the second score threshold to determine the level of the job score corresponding to each workstation.

[0048] During step S8, the control module can iterate through the comparison results (job scores) for each workstation. Taking the first workstation as an example, the control module determines the relationship between the job score of the first workstation and the first and second score thresholds. If the conditions are met... The work score at the first workstation is greater than or equal to the first score threshold. If the work score of the first workstation falls within the "higher" range, then the control module may not perform any operation on the first workstation; if the following conditions are met... The second score threshold ≤ the work score of the first workstation < the first score threshold If the work score at the first workstation falls within the "lower" range, the control module can generate a second feedback message for that workstation and push it to the corresponding sub-display screen. This allows the worker at the first workstation to understand that their work score is low. The work score for the first workstation is less than the second score threshold. If the work score of the first station is in the "very low" range, the control module can generate a stop instruction for the first station and push the stop instruction to the first station. Through the stop instruction, the control module can stop the operation of the conveyor PLC, equipment PLC and field equipment at the first station, and can also control the production line to stop the conveyor vehicles at the first station.

[0049] The control module iterates through each workstation to determine whether to perform any operation at each workstation, generate a second feedback message for push display, or generate a stop command message to control and suspend work.

[0050] In this embodiment, the principle of executing steps S7-S8 is as follows: By executing steps S7-S8, after the workers at each of the preceding workstations have completed the assembly work of the first vehicle at their respective workstations, and the first vehicle has reached the final workstation, a re-inspection is performed on the first vehicle to obtain the final quality inspection information. By comparing the final quality inspection information with the quality prompts from each of the preceding workstations, the assembly work at each workstation is reviewed, enabling a secondary verification of the quality issues in the vehicle assembly work. The issues are then addressed according to the work scores of each workstation, such as by not performing the operation, pushing a second feedback message, or suspending work. This allows for targeted handling based on the situation at each workstation, which is beneficial for locating and eliminating faults, achieving zero-defect management in the production process, strengthening problem traceability and rapid response capabilities, and encouraging workers to make timely rectifications, ensuring that the vehicle product quality meets the standard requirements.

[0051] In this embodiment, refer to Figure 8 When the first vehicle arrives at the first workstation of the production line along the conveyor direction, the quality control module detects that the positioning information of the first vehicle matches the first workstation, thus confirming that the first vehicle has arrived at the first workstation. The quality control module then calls the detection unit corresponding to the first workstation to monitor the first vehicle and obtain real-time quality inspection information for the first vehicle. In this embodiment, the detection unit at the first workstation can determine whether the shape of the components after the first vehicle completes the assembly work at the first workstation is normal through processes such as image capture and image feature recognition, thereby generating real-time quality inspection information reflecting these conditions. When the quality control module calls the detection unit at the first workstation, it can set all components assembled at the first workstation as the detection target, thus making the generated real-time quality inspection information referable to the first workstation. The quality control module then sends the detected real-time quality inspection information to the control module.

[0052] In this embodiment, if the quality control module obtains the final quality inspection information, the control module can also perform the following steps: S9. Compare the real-time quality inspection information with the quality prompt information corresponding to the first workstation; S10. Generate third feedback information based on the comparison results and determine the third workstation; S11. Adjust the work instruction information corresponding to the third workstation based on the third feedback information, and push the adjusted work instruction information to the sub-display screen corresponding to the third workstation for display.

[0053] The principle of steps S9-S11 is as follows: Figure 8 As shown.

[0054] In step S9, the quality prompt information corresponding to the first workstation is obtained through step S3. It indicates the standard steps to be performed by the workers at the first workstation during assembly, the shape of the assembled parts, and other information. In other words, the quality prompt information corresponding to the first workstation can serve as the target of the assembly work to be performed at the first workstation, while the real-time quality inspection information indicates the effect achieved by the assembly work actually performed by the workers at the first workstation.

[0055] Therefore, the control module executes step S9 to compare the real-time quality inspection information with the quality prompt information corresponding to the first workstation. This allows it to determine the difference between the real-time quality inspection information and the quality prompt information corresponding to the first workstation, thereby identifying the gap between the assembly work actually performed by the worker at the first workstation and the target. In step S10, third feedback information is generated to represent this difference. Specifically, the third feedback information can represent information such as omissions by the worker at the first workstation (e.g., the location of parts that were ignored and not tightened when the first workstation is a tightening workstation) and substandard assembly (e.g., the location of parts whose tightening torque is insufficient when the first workstation is a tightening workstation).

[0056] In step S10, the third station is the station on the production line that follows the first station. Similar to determining the second station, the third station can be selected arbitrarily or based on workload criteria.

[0057] Reference Figure 8 After determining the third workstation, the control module executes step S11, adjusting the work instruction information corresponding to the third workstation based on the third feedback information. For example, the original work instruction information for the third workstation indicated the assembly procedures that the worker at the third workstation needed to perform. The control module can add supplementary assembly procedures for these missing or substandard parts to the work instruction information corresponding to the third workstation based on information such as omissions or substandard assembly contained in the third feedback information, thereby obtaining the adjusted work instruction information. (Refer to...) Figure 8The control module pushes the adjusted work instructions to the corresponding sub-display screen at the third workstation. After the first vehicle arrives at the third workstation, the workers there can perform their assigned assembly procedures based on the adjusted instructions, as well as additional tasks such as supplementary assembly of missing or substandard parts. This allows them to correct defects such as missing parts or substandard assembly at the first workstation.

[0058] In this embodiment, the principle of executing steps S9-S11 is as follows: by executing steps S9-S11, work defects such as assembly errors by the workers at the first workstation can be detected, and the work guidance information of the third workstation can be adjusted in advance. This allows the workers at the third workstation to repair the work defects of the first workstation after the first vehicle assembled at the first workstation arrives at the third workstation, under the guidance of the adjusted work guidance information. This is beneficial for repairing production defects during the production process on the same production line, reducing the need for rework of the first vehicle, ensuring the continuous and smooth operation of the production line, and thus helping to maintain high production efficiency.

[0059] In this embodiment, the communication module also maintains real-time communication with the OTD system and process system, etc. When these external systems release process change information, the module promptly receives the process change information and sends it to the control module. The process change information refers to modifications to the vehicle production configuration information at at least one workstation on the production line.

[0060] After receiving process change information, the control module pushes the information to the work instruction display screen. Specifically, if the process change only affects certain workstations, the control module pushes the information to the sub-display screens of those workstations. The control module can control the sub-display screens receiving the process change information to first display a QR code, prompting workers at the workstations to scan the QR code with their mobile phones or other tools to confirm the change, thus completing a closed-loop interaction between the worker and the system. After detecting that the QR code has been scanned and confirmed, the control module controls the work instruction display screen to show the process change information.

[0061] By processing process change information, the generated process can be updated in real time, thereby adapting to individual working conditions.

[0062] The work guidance control system for automobile final assembly workshop in this embodiment can achieve the following functions and effects: Function 1 – Work Instruction: By integrating with the process system, the system can automatically obtain the configuration information of vehicles at each workstation and automatically match the work instruction data for the current workstation. When a vehicle arrives at the workstation, the relevant work instruction information is automatically pushed to the work instruction screen, ensuring that workers can perform tasks according to standard operating procedures.

[0063] Effect 1: Enables real-time document updates and unified version control, improving the intelligence and standardization of workshop management.

[0064] Function 2 – Quality Visualization: During operation, the work instruction display screen can show the work steps, processes, and current work status in real time. Taking the tightening station as an example, the work instruction screen will remind the operator of the tightening steps for the current station, and the system will automatically provide feedback on the completion status after each step is completed. If there are any unqualified tightenings or omissions, the system will promptly alarm and remind the operator to prevent quality problems from flowing to the next process.

[0065] Effect 2: The system implements real-time alerts and automatic feedback mechanisms, which not only strengthens process control but also accurately locates non-conforming or incomplete issues through immediate alarms, preventing potential quality problems at the source and avoiding defective products from flowing into subsequent processes, thus greatly improving product quality stability. The application of this system aligns with the development trend of modern intelligent manufacturing and plays a positive and significant role in improving production efficiency and ensuring product quality.

[0066] Function 3 – Quality Control: If an unresolved quality issue occurs at this workstation, the system will re-verify the work's compliance status when the vehicle arrives at the end of the production line. If the quality issue remains unresolved, the system will send a stop-line command and issue an alarm, reminding operators to promptly resolve the problem and prevent it from spreading to the next production stage.

[0067] Effect 3: Effectively eliminates the risk of quality problems spreading to downstream processes, achieving zero-defect management in the production process. This mechanism not only strengthens problem tracing and rapid response capabilities, but also forces operators to make timely corrections through mandatory line shutdowns, ensuring that product quality meets standard requirements.

[0068] Function 4 – Change Notification: When a process change occurs, the process system sends change information to the work instruction system via an interface. The system automatically identifies whether there is a process change when the vehicle arrives at the workstation. If so, the relevant change information will be pushed to the screen for display, and the operator can confirm receipt of the information by scanning a QR code, completing a closed-loop interaction between the operator and the system.

[0069] Effect 4: The interface linkage and automatic change push mechanism between the process system and the work instruction system have enabled efficient flow and accurate delivery of process change information. By automatically identifying process changes at workstations and pushing them to the work instruction screen in real time, the system has completely solved the problems of delayed updates and poor information transmission associated with traditional paper documents, significantly improving the workshop's response speed to process changes. The introduction of a QR code scanning confirmation function not only ensures that operators receive the complete change information, but also forms a closed-loop interactive process of "change sending - receiving confirmation - execution feedback," effectively avoiding operational errors caused by information omissions or misunderstandings, and ensuring the accurate implementation of process changes.

[0070] In summary, the work instruction control system for automobile assembly workshops in this embodiment has the following effects: 1. By constructing an integrated data model encompassing products, processes, equipment, and personnel, and integrating MES systems, visual recognition systems, and terminal human-machine interaction technologies, the system automatically issues work instructions matching vehicle models and operating conditions, achieving full visibility, controllability, and traceability of the entire work process. The system supports dynamic adjustment of work content and closed-loop processing of anomaly feedback, with an instruction issuance accuracy rate >99% and a response time <1 second. This effectively improves assembly consistency, work efficiency, and quality stability, reducing production delays and quality rework issues. It provides core technological support for intelligent final assembly, enhancing production efficiency and quality control capabilities. 2. Based on digital means, construct an integrated data model of products, processes, equipment and personnel, and integrate MES system, visual recognition system and terminal human-machine interaction technology to realize work guidance, thereby improving assembly consistency, work efficiency and quality stability; 3. Accurate queuing is achieved through RFID and encoder technology, and corresponding work guidance data is automatically matched according to vehicle information, thereby improving the efficiency and accuracy of the production process; 4. By visualizing the quality status in real time, quality problems can be detected and reported in a timely manner, preventing them from flowing to the next production stage and effectively improving product quality stability; 5. The system can identify process changes in real time and remind operators to receive change information in a timely manner through human-computer interaction, ensuring that the work instructions are updated promptly and accurately delivered.

[0071] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or indirectly fixed or connected to the other feature. Furthermore, the descriptions of "upper," "lower," "left," and "right" used in this disclosure are only relative to the relative positional relationships of the components of this disclosure in the accompanying drawings. The singular forms "a" and "the" used in this disclosure are also intended to include the plural forms, unless the context clearly indicates otherwise. Moreover, unless otherwise defined, all technical and scientific terms used in this embodiment have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this embodiment specification is only for describing specific embodiments and is not intended to limit the embodiments of the invention. The term "and / or" as used in this embodiment includes any combination of one or more of the associated listed items.

[0072] It should be understood that although the terms first, second, third, etc., may be used to describe various elements in this disclosure, these elements should not be limited to these terms. These terms are only used to distinguish elements of the same type from each other. For example, a first element may also be referred to as a second element without departing from the scope of this disclosure, and similarly, a second element may also be referred to as a first element. The use of any and all instances or exemplary language (“e.g.,” “such as,” etc.) provided in this embodiment is intended only to better illustrate embodiments of the invention and, unless otherwise required, does not impose a limitation on the scope of embodiments of the invention.

[0073] It should be recognized that embodiments of the present invention can be implemented or carried out by computer hardware, a combination of hardware and software, or by computer instructions stored in a non-transitory computer-readable storage medium. The method can be implemented using standard programming techniques—including a non-transitory computer-readable storage medium configured with a computer program, wherein such a storage medium causes the computer to operate in a specific and predefined manner—according to the methods and drawings described in the specific embodiments. Each program can be implemented in a high-level procedural or object-oriented programming language to communicate with the computer system. However, if desired, the program can be implemented in assembly or machine language. In any case, the language can be a compiled or interpreted language. Furthermore, for this purpose, the program can run on a programmed application-specific integrated circuit (ASIC).

[0074] Furthermore, the procedures described in this embodiment can be performed in any suitable order unless otherwise indicated by this embodiment or otherwise obviously contradict the context. The procedures (or variations and / or combinations thereof) described in this embodiment can be executed under the control of one or more computer systems configured with executable instructions, and can be implemented by hardware or a combination thereof as code (e.g., executable instructions, one or more computer programs, or one or more applications) that commonly executes on one or more processors. A computer program includes a plurality of instructions executable by one or more processors.

[0075] Furthermore, the method can be implemented in any suitable type of computing platform, including but not limited to personal computers, minicomputers, mainframes, workstations, networked or distributed computing environments, standalone or integrated computer platforms, or in communication with charged particle tools or other imaging devices, etc. Aspects of embodiments of the invention can be implemented as machine-readable code stored on a non-transitory storage medium or device, whether removable or integrated into a computing platform, such as a hard disk, optical read and / or write storage medium, RAM, ROM, etc., such that it is readable by a programmable computer, and when the storage medium or device is read by the computer, it can be used to configure and operate the computer to perform the processes described herein. Furthermore, the machine-readable code, or portions thereof, can be transmitted via wired or wireless networks. The invention of this embodiment includes these and other different types of non-transitory computer-readable storage media when such media comprises instructions or programs that implement the steps above in conjunction with a microprocessor or other data processor. Embodiments of the invention also include the computer itself when programmed according to the methods and techniques of embodiments of the invention.

[0076] A computer program can be applied to input data to perform the functions of this embodiment, thereby transforming the input data to generate output data stored in non-volatile memory. The output information can also be applied to one or more output devices, such as a display. In a preferred embodiment of the invention, the transformed data represents physical and tangible objects, including a specific visual depiction of physical and tangible objects generated on the display.

[0077] The above are merely preferred embodiments of the present invention. The embodiments of the present invention are not limited to the above-described implementations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the embodiments of the present invention, as long as they achieve the same technical effects, should be included within the scope of protection of the embodiments of the present invention. Within the scope of protection of the embodiments of the present invention, the technical solutions and / or implementation methods can have various modifications and variations.

Claims

1. A work instruction control system for an automobile assembly workshop, the automobile assembly workshop including a production line, the production line including multiple workstations, each workstation being used for corresponding workers to perform automobile assembly work, characterized in that, The job instruction control system includes: Work instruction display screen; Vehicle positioning module; the vehicle positioning module is used to obtain the positioning information of each vehicle on the current production line; the positioning information indicates the position of the corresponding vehicle at the workstation on the production line; Communication module; the communication module is used to obtain vehicle production configuration information for each workstation on the current production line; A control module; the control module is used to generate work guidance information based on the positioning information and the vehicle production configuration information, and push the work guidance information to the work guidance display screen for display.

2. The work instruction control system for an automobile assembly workshop according to claim 1, characterized in that: The communication module is also used to acquire process change information and send the process change information to the control module; The control module is also used to push the process change information to the work instruction display screen, control the work instruction display screen to display a QR code, and when the QR code is detected to be scanned, control the work instruction display screen to display the process change information.

3. The work instruction control system for an automobile assembly workshop according to claim 1, characterized in that: The work instruction display screen includes multiple sub-display screens, each of which displays information to the corresponding workstation.

4. The work instruction control system for an automobile assembly workshop according to claim 3, characterized in that, The step of generating work guidance information based on the location information and the vehicle production configuration information includes: When the location information corresponding to the first vehicle is detected to match the first workstation, the work guidance information corresponding to the first workstation is generated according to the vehicle production configuration information corresponding to the first workstation and the first vehicle; wherein, the first vehicle is any one of the vehicles on the current production line, and the first workstation is any one of the multiple workstations.

5. The work instruction control system for an automobile assembly workshop according to claim 4, characterized in that, The step of pushing the work instruction information to the work instruction display screen for display includes: The work instruction information corresponding to the first workstation is pushed to the sub-display screen corresponding to the first workstation for display.

6. The work instruction control system for an automobile final assembly workshop according to claim 4 or 5, characterized in that, The job instruction control system also includes: The detection module includes multiple detection units, each of which detects the current operating status of its corresponding workstation.

7. The work instruction control system for an automobile final assembly workshop according to claim 6, characterized in that: The control module is also used to generate quality prompt information corresponding to the first workstation based on the current operation status and the operation guidance information corresponding to the first workstation, and push the quality prompt information to the sub-display screen corresponding to the first workstation for display.

8. The work instruction control system for an automobile assembly workshop according to claim 6, characterized in that, The job instruction control system also includes: A quality control module; the quality control module is used to, when it detects that the positioning information corresponding to the first vehicle matches the second workstation, call the detection unit corresponding to the second workstation to monitor the first vehicle, obtain the subsequent quality inspection information corresponding to the first vehicle, and send the subsequent quality inspection information to the control module; wherein, the second workstation is the workstation in the production line that is after the first workstation; The control module is used to compare the subsequent quality inspection information with the quality prompt information corresponding to the first workstation, generate first feedback information based on the comparison result, and push the first feedback information to the sub-display screen corresponding to the first workstation for display.

9. The work instruction control system for an automobile final assembly workshop according to claim 8, characterized in that: The quality control module is further configured to, when it detects that the positioning information corresponding to the first vehicle matches the tail station, call the detection unit corresponding to the tail station to monitor the first vehicle, obtain the final quality inspection information corresponding to the first vehicle, and send the final quality inspection information to the control module; wherein, the tail station is the last station in the production line; The control module is further configured to compare the final quality inspection information with the quality prompt information corresponding to each of the workstations, determine the work score corresponding to each workstation based on the comparison results, generate second feedback information corresponding to the work score for work scores that are lower than a first score threshold but higher than a second score threshold, and push the second feedback information to the sub-display screen corresponding to the workstation for display, and generate stop instruction information corresponding to the work score for work scores that are lower than the second score threshold, and push the stop instruction information to the corresponding workstation.

10. The work instruction control system for an automobile assembly workshop according to claim 8, characterized in that: The quality control module is also used to, when it is detected that the positioning information corresponding to the first vehicle matches the first workstation, call the detection unit corresponding to the first workstation to monitor the first vehicle, obtain the real-time quality inspection information corresponding to the first vehicle, and send the real-time quality inspection information to the control module. The control module is used to compare the real-time quality inspection information with the quality prompt information corresponding to the first workstation, generate third feedback information based on the comparison result, determine the third workstation, adjust the work instruction information corresponding to the third workstation based on the third feedback information, and push the adjusted work instruction information to the sub-display screen corresponding to the third workstation for display.

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