Quality inspection method and device for vehicle production line and computer equipment

Abstract

The application relates to a quality inspection method and device for a vehicle production line and a computer device. The method comprises the following steps: receiving a previous quality inspection result sent by a previous quality inspection device, wherein the previous quality inspection result is obtained by performing quality inspection on an assembly result of a vehicle after a previous assembly link ends; obtaining a current quality inspection result corresponding to a current assembly link after the current assembly link ends, wherein the current quality inspection result comprises a review result obtained by performing review based on the previous quality inspection result in the process of the current assembly link; and sending the current quality inspection result to a next quality inspection device, so that the next assembly link performs review based on the current quality inspection result, until a vehicle is assembled completely after all assembly links end, and quality defect information of the vehicle is output by a last quality inspection device. The method can improve the quality inspection efficiency.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a quality inspection method, apparatus and computer equipment for a vehicle production line. Background Technology

[0002] During vehicle production, manual assembly is unavoidable on the assembly line. To ensure the quality of vehicles before shipment, the vehicle manufacturer conducts a comprehensive verification and inspection of the vehicle's quality after assembly. If quality problems are found, the vehicle is removed from the assembly line and transported to the rework process for repair.

[0003] However, since the current quality inspection methods are all carried out by the vehicle inspection department after the vehicle assembly is completed, the appearance and function are inspected. If there are many defects during the assembly process, the workload of the final inspection will be greatly increased, which will seriously reduce the vehicle production efficiency. Summary of the Invention

[0004] Therefore, it is necessary to provide a quality inspection method, apparatus, computer equipment, computer-readable storage medium, and computer program product for a vehicle production line that can improve vehicle production efficiency, in response to the above-mentioned technical problems.

[0005] On one hand, this application provides a quality inspection method for a vehicle production line. The method includes:

[0006] Receive the previous quality inspection result sent by the previous quality inspection equipment, wherein the previous quality inspection result is obtained by inspecting the assembly result of the vehicle after the previous assembly stage is completed.

[0007] After the current assembly stage is completed, the current quality inspection result corresponding to the current assembly stage is obtained. The current quality inspection result includes the review result obtained by reviewing the previous quality inspection result during the current assembly stage.

[0008] The current quality inspection result is sent to the next quality inspection equipment so that the next assembly stage can review it based on the current quality inspection result. This process continues until all assembly stages are completed and the assembled vehicle is obtained. The last quality inspection equipment then outputs the vehicle's quality defect information.

[0009] In some embodiments, the method further includes:

[0010] Obtain the verification result obtained by verifying the quality defect information based on the inspection operation standards;

[0011] Based on the verification results, in the verification process, the assembled vehicle is subjected to secondary verification in sequence according to the verification items to obtain the verification information corresponding to each verification item.

[0012] The verification information is sent to the display device set up in the assembly stage corresponding to the verification information on the production line for prompting.

[0013] In some embodiments, before obtaining the verification result obtained by verifying the quality defect information based on inspection operation standards, the method further includes:

[0014] Check if there are any recorded inspection work standards corresponding to the quality defect information;

[0015] In the absence of recorded inspection operation standards corresponding to the quality defect information, obtain vehicle defect image information and defect description;

[0016] The defect image information and the defect description are sent to the processing device to instruct the processing device to update the existing inspection operation standards or add new inspection operation standards.

[0017] In some embodiments, the method further includes:

[0018] After the verification process is completed, the quality information of the vehicle is obtained based on the quality defect information and the verification information.

[0019] A recording instruction is sent to the processing device to instruct the processing device to associate the quality information with the vehicle identification information of the vehicle and store it in the quality defect database; wherein, the quality defect database also records quality information obtained through external feedback.

[0020] In some embodiments, the quality defect information is used to generate quality experience information corresponding to the quality defect information. The quality experience information includes at least the cause analysis, solution measures, and preventive measures corresponding to the quality defect information. The quality experience information is stored in association with the quality defect information in a quality experience database for the purpose of formulating inspection operation standards based on the stored quality experience information.

[0021] In some embodiments, an automation stage is provided before the assembly stage, and the automation stage includes multiple automated devices; the method further includes:

[0022] After the automation process is completed, the operation information obtained by each automated device performing automated operations based on the production parameters recorded in the pre-defined production plan is acquired.

[0023] Based on the operational information, the operational results of the automated process are verified to obtain the verification results.

[0024] If the verification result indicates that there is a production problem in the automation process, the verification result is sent to the processing equipment to instruct the processing equipment to correct the production parameters of the automation equipment.

[0025] On the other hand, this application also provides a quality inspection device for a vehicle production line. The device includes:

[0026] The receiving module is used to receive the previous quality inspection result sent by the previous quality inspection equipment. The quality inspection result is obtained by inspecting the assembly result of the vehicle after the previous assembly stage is completed.

[0027] The quality inspection module is used to obtain the current quality inspection result corresponding to the current assembly stage after the current assembly stage is completed. The current quality inspection result includes the review result obtained by reviewing the previous quality inspection result during the current assembly stage.

[0028] The sending module is used to send the current quality inspection result to the next quality inspection equipment so that the next assembly stage can review it based on the current quality inspection result; until all assembly stages are completed and the assembled vehicle is obtained, the last quality inspection equipment outputs the vehicle's quality defect information.

[0029] In some embodiments, the above-mentioned device further includes a verification module, used to obtain the verification result obtained by verifying the quality defect information based on the inspection operation standard; based on the verification result, in the verification process, the assembled vehicle is subjected to secondary verification in sequence according to the verification items to obtain the verification information corresponding to each verification item; and the verification information is sent to the display device set in the assembly process corresponding to the verification information on the assembly line for prompting.

[0030] In some embodiments, the above-described apparatus further includes a comparison module for checking whether an inspection operation standard corresponding to the quality defect information is recorded; if no inspection operation standard corresponding to the quality defect information is recorded, obtaining defect image information and defect description of the vehicle; and sending the defect image information and defect description to a processing device to instruct the processing device to update the existing inspection operation standard or add a new inspection operation standard.

[0031] In some embodiments, the above-described apparatus further includes a recording module, configured to obtain the quality information of the vehicle based on the quality defect information and the verification information after the verification process is completed; send a recording instruction to the processing device to instruct the processing device to associate the quality information with the vehicle identification information of the vehicle and store it in the quality defect database; wherein the quality defect database also records quality information obtained through external feedback.

[0032] In some embodiments, the quality defect information is used to generate quality experience information corresponding to the quality defect information. The quality experience information includes at least the cause analysis, solution measures, and preventive measures corresponding to the quality defect information. The quality experience information is stored in association with the quality defect information in a quality experience database for the purpose of formulating inspection operation standards based on the stored quality experience information.

[0033] In some embodiments, an automation stage is provided before the assembly stage, and the automation stage includes multiple automated devices. The device further includes an automation module, which is used to acquire operation information obtained by each automated device performing automated operations based on production parameters recorded in a pre-defined production plan after the automation stage is completed; to verify the operation results of the automation stage based on the operation information to obtain a verification result; and to send the verification result to a processing device if the verification result indicates that there is a production problem in the automation stage, so as to instruct the processing device to correct the production parameters of the automated devices.

[0034] On the other hand, this application also provides a computer device. The computer device includes a memory and a processor, the memory storing a computer program, and the processor executing the computer program to implement the steps of the quality inspection method for the vehicle production line described above.

[0035] On the other hand, this application also provides a computer-readable storage medium. The computer-readable storage medium stores a computer program thereon, which, when executed by a processor, implements the steps of the quality inspection method for the vehicle production line described above.

[0036] On the other hand, this application also provides a computer program product. The computer program product includes a computer program that, when executed by a processor, implements the steps of the quality inspection method for the vehicle production line described above.

[0037] The aforementioned quality inspection methods, devices, computer equipment, storage media, and computer programs on the vehicle production line receive the previous quality inspection results from the preceding quality inspection equipment at each stage. These results are then reviewed at the current assembly stage, and the reviewed results are combined with the current assembly stage's inspection results to form the current quality inspection result, which is then sent to the next quality inspection equipment for further review at the next assembly stage. By establishing multiple review points in the intermediate stages of the production line, the quality inspection results from each stage can be transmitted to the next, achieving data interoperability and preventing missed or incorrect inspections. Furthermore, segmented quality inspection and segmented review significantly reduce the workload at the final inspection points and improve the vehicle production quality pass rate. Attached Figure Description

[0038] Figure 1 This is a diagram illustrating the application environment of a quality inspection method for a vehicle production line in one embodiment.

[0039] Figure 2 This is a flowchart illustrating a quality inspection method for a vehicle production line in one embodiment.

[0040] Figure 3 This is a flowchart illustrating the vehicle quality inspection process in one embodiment;

[0041] Figure 4 This is a flowchart of a vehicle assembly line in one embodiment;

[0042] Figure 5 This is a structural block diagram of a quality inspection device for a vehicle production line in one embodiment.

[0043] Figure 6 This is an internal structural diagram of a computer device in one embodiment. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0045] The quality inspection method for vehicle production lines provided in this application can be applied to, for example... Figure 1 The application environment shown is as follows. In this system, a vehicle production line is equipped with multiple quality inspection devices 102, each capable of performing the aforementioned method. In some embodiments, the vehicle production line includes multiple assembly stages, each assembly stage has multiple workstations, each workstation is operated by an operator, and each assembly stage may have one or more quality inspection devices.

[0046] It is easy to understand that vehicle production lines are not only equipped with quality inspection equipment, but also with other computer equipment, such as automated production equipment, processing equipment, and monitoring equipment.

[0047] The quality inspection equipment 102 can communicate with the server 104 to upload the quality inspection results to the server 104 for backup or analysis. The server can be a standalone physical server, a server cluster or distributed system composed of multiple physical servers, or a cloud server providing basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, security services, and big data and artificial intelligence platforms.

[0048] In one embodiment, such as Figure 2 As shown, a quality inspection method for a vehicle production line is provided, which is applied to... Figure 1 Taking the quality inspection equipment in the middle as an example, the following steps are included:

[0049] Step S202: Receive the previous quality inspection result sent by the previous quality inspection equipment. The previous quality inspection result is obtained by inspecting the assembly result of the vehicle after the previous assembly stage is completed.

[0050] The vehicle production line has multiple assembly stages arranged sequentially for assembling vehicles. Each assembly stage is equipped with at least one quality inspection device. Assembly personnel can manually input the quality inspection results. Alternatively, in cases where assembly is done automatically by automated equipment, the automated equipment can transmit the data to the quality inspection device, which then verifies the data to obtain the quality inspection result.

[0051] Specifically, for each quality inspection device, the quality inspection device receives the previous quality inspection result sent by the previous quality inspection device for verification. The previous quality inspection result sent by the previous quality inspection device is obtained by the previous quality inspection device after the previous assembly stage was completed, based on the quality inspection of the vehicle assembly results.

[0052] Step S204: After the current assembly stage is completed, the current quality inspection result corresponding to the current assembly stage is obtained. The current quality inspection result includes the review result obtained by reviewing the previous quality inspection result during the current assembly stage.

[0053] Specifically, during the current assembly stage, the quality inspection equipment reviews the previous quality inspection result sent by the preceding quality inspection equipment to obtain a review result for the preceding quality inspection equipment. Furthermore, during the assembly process of the current assembly stage, the quality inspection equipment also performs quality inspection on the assembly result of the current assembly stage, thereby obtaining the corresponding quality inspection result for the current assembly stage. The quality inspection equipment combines the review result obtained from the previous quality inspection equipment and the quality inspection result obtained from the quality inspection of the current assembly stage's assembly result as the current quality inspection result for the current assembly stage, and then passes it to the next quality inspection equipment.

[0054] Step S206: The current quality inspection result is sent to the next quality inspection equipment so that the next assembly stage can review it based on the current quality inspection result. This process continues until all assembly stages are completed and the assembled vehicle is obtained. The last quality inspection equipment then outputs the vehicle's quality defect information.

[0055] Specifically, after the current assembly stage is completed, the quality inspection equipment sends the current quality inspection result to the next quality inspection equipment so that the next assembly stage can review the result based on the current quality inspection result.

[0056] Similarly, for the next quality inspection equipment, after receiving the quality inspection result sent by the previous quality inspection equipment, the next quality inspection equipment will review the result and the quality inspection result of the previous assembly stage itself. The next quality inspection equipment will then pass the result to the next quality inspection equipment, and so on. Thus, after all the assembly stages of the production line are completed, the vehicle assembly is finished, and the result of the vehicle assembly has undergone multiple layers of quality inspection. The quality inspection result output by the last quality inspection equipment is used as the vehicle's quality defect information.

[0057] In some embodiments, each quality inspection device, while acquiring the quality inspection result of the previous quality inspection device, also acquires the workstation code corresponding to that quality inspection result. For example, if a quality problem occurs at the 5th workstation, and the quality problem is confirmed after inspection, the workstation code is added to the review result. Thus, when the next quality inspection device reviews the quality inspection result transmitted by the previous quality inspection device, it can return the review result to the previous quality inspection device after confirming the quality problem. The previous quality inspection device, based on the workstation code carried in the review result, outputs a command to the display device corresponding to the workstation code, instructing the display device to display the corresponding review result or relevant prompt information.

[0058] In the aforementioned quality inspection method for vehicle production lines, each inspection device receives the inspection result from the previous device and verifies it at the current assembly stage. This verified result, along with the current assembly stage's inspection result, forms the current quality inspection result, which is then sent to the next inspection device for verification. By establishing multiple verification points in the middle of the production line, the quality inspection results from each stage can be passed to the next, achieving data interoperability and preventing missed or incorrect inspections. Furthermore, segmented quality inspection and segmented verification significantly reduce the workload at the final inspection points and improve the vehicle production quality pass rate.

[0059] After assembly, a verification stage is set up on the production line. This stage is mainly used for secondary inspection and comprehensive checks of the vehicle. These checks include, but are not limited to, dynamic and static inspections. Dynamic inspections generally refer to functional equipment checks, rain sealing checks, and track running checks; static inspections generally include checks of the vehicle's exterior, paint finish, and interior and exterior trim. It should be noted that the inspection items can be adjusted according to the vehicle's configuration.

[0060] Therefore, in some embodiments, the method further includes: obtaining a verification result obtained by verifying the quality defect information based on inspection operation standards; based on the verification result, in the verification process, performing secondary verification on the assembled vehicle in sequence according to the verification items to obtain verification information corresponding to each verification item; and sending the verification information to a display device set in the assembly process corresponding to the verification information on the assembly line for prompting.

[0061] Specifically, at least one quality inspection device is also set up in the verification stage. This device is used to perform a secondary inspection on the assembled vehicle. In some embodiments, the quality inspection device in the verification stage obtains a verification result obtained by verifying the quality defect information based on inspection operation standards. This can be achieved by the first quality inspection device in the verification stage obtaining the quality defect information output by the last quality inspection device in the assembly stage, and obtaining a pre-set inspection operation standard to verify the quality defect information according to that standard, thereby obtaining the verification result. In other embodiments, the quality inspection device in the verification stage obtains a verification result obtained by verifying the quality defect information based on inspection operation standards. This can be achieved by inspectors verifying the vehicle's quality defect information based on inspection operation standards and then recording the result into the quality inspection device.

[0062] On the vehicle production line, there is an information sharing system consisting of multiple computer devices. In the assembly, inspection and other stages, there are data input devices and data display devices consisting of computer devices. Inspection personnel input vehicle production-related data through the data input devices and display the data visually to the assembly personnel through the data display devices.

[0063] In some embodiments, based on the obtained verification results, the quality inspection equipment performs secondary verification on the assembled vehicle sequentially according to a set of pre-defined verification items during the verification process, thereby obtaining verification information corresponding to each verification item. Verification items may include one or more of the following: line inspection, static inspection, dynamic inspection, final inspection, and packing inspection.

[0064] The inspection process includes: inspection line testing (such as headlight testing and reversing camera testing); static inspection (including but not limited to scratch detection and missing / incomplete parts detection); dynamic inspection (including but not limited to road testing); and final inspection (which involves final confirmation of all inspected items).

[0065] During the secondary verification process based on each verification item, the quality inspection equipment assigns corresponding verification information to each item. The quality inspection equipment in the verification stage can send this verification information to a display device located in the assembly stage corresponding to that verification information on the production line for prompting. For example, for a specific verification item, the quality inspection equipment returns it to the assembly stage corresponding to that verification item on the production line, and prompts the assembly personnel through a display device (such as a screen) located in that assembly stage.

[0066] In the above embodiments, a secondary inspection is carried out through the verification process to ensure the pass rate of vehicle assembly, and feedback is provided to the assembly personnel to avoid quality problems, resulting in higher quality inspection efficiency.

[0067] In some embodiments, before obtaining the verification result obtained by verifying the quality defect information based on the inspection operation standard, the method further includes: checking whether an inspection operation standard corresponding to the quality defect information is recorded; if no inspection operation standard corresponding to the quality defect information is recorded, obtaining the vehicle's defect image information and defect description; and sending the defect image information and defect description to the processing device to instruct the processing device to update the existing inspection operation standard or add a new inspection operation standard.

[0068] Specifically, the quality inspection equipment first checks whether there is a recorded inspection operation standard corresponding to the quality defect information. If there is a recorded inspection operation standard corresponding to the quality defect information, the quality inspection equipment performs a secondary verification according to the recorded inspection operation standard.

[0069] If no inspection operation standard corresponding to the quality defect information is recorded, indicating that there are no pre-existing operating procedures, the quality inspection equipment acquires image information and descriptions of the vehicle's defects. For example, the quality inspection equipment obtains defect image information by taking pictures of vehicle defects using cameras installed on the production line. Alternatively, the quality inspection equipment may acquire defect descriptions corresponding to the quality defect information through manual input.

[0070] The quality inspection equipment then sends the defect image information and defect description to the processing equipment, instructing the processing equipment to update existing inspection standards or add new inspection standards. The processing equipment can be a computer device installed on the production line or a computer device installed independently of the production line. The processing equipment can update existing inspection standards or add new inspection standards based on the received defect image information and defect description. Alternatively, the processing equipment can provide prompts to engineers to update existing inspection standards or add new inspection standards.

[0071] In the above embodiments, by recording the quality problems that exist in the vehicle production process and updating the inspection operation standards accordingly, the quality inspection results of the vehicles can be made more accurate and efficient.

[0072] In some embodiments, the method further includes: after the verification process is completed, obtaining the quality information of the vehicle based on the quality defect information and the verification information; sending a recording instruction to the processing device to instruct the processing device to associate the quality information with the vehicle identification information of the vehicle and store it in the quality defect database; wherein the quality defect database also records quality information obtained through external feedback.

[0073] Specifically, after the verification process is completed, the quality inspection equipment obtains the vehicle's quality information based on the quality defect information and the verification information. The vehicle's quality information describes various aspects of the vehicle's production, such as whether quality problems exist and, if so, what those problems are.

[0074] For example, the vehicle's quality information can be obtained by the last quality inspection device in the inspection process, and a recording instruction can be sent to the processing device to instruct the processing device to associate the quality information with the vehicle's identification information and store it in the quality defect database. This processing device can be the same as the processing device in the aforementioned embodiments, or it can be a different processing device. The vehicle identification information may be, for example, vehicle coding information.

[0075] In some embodiments, the processing device also acquires quality information obtained through external feedback and associates the quality information obtained through external feedback with vehicle identification information and stores it in a quality defect database. External feedback may include, for example, quality information obtained through market / after-sales feedback, or quality information obtained through AUDIT (a quality inspection method) review feedback.

[0076] In the above embodiments, by associating and storing vehicle identification information with vehicle quality information to form a quality defect database, it can be used to formulate corresponding quality inspection methods and inspection plans, resulting in more accurate quality inspection results.

[0077] In some embodiments, the quality defect information is used to generate quality experience information corresponding to the quality defect information. The quality experience information includes at least the cause analysis, solutions, and preventative measures corresponding to the quality defect information. For example, the quality inspection equipment sends an instruction to the processing equipment, instructing the processing equipment to generate quality experience information corresponding to the quality defect information, and to store the quality experience information and the quality defect information in a quality experience database, so as to formulate inspection work standards based on the stored quality experience information. For instance, the processing equipment displays the stored quality experience information so that engineers can formulate inspection work standards based on the quality experience information for subsequent quality inspections in various stages. Therefore, updating inspection work standards based on the established quality experience database makes subsequent quality inspections not only more comprehensive but also more targeted, resulting in more accurate inspection results.

[0078] In addition to the manual assembly stage, the vehicle production line also includes one or more automated stages, each with multiple automated devices. In some embodiments, the method further includes: after the automated stage is completed, acquiring operation information obtained by each automated device performing automated operations based on production parameters recorded in a pre-defined production plan; verifying the operation results of the automated stage based on the operation information to obtain verification results; and if the verification results indicate a production problem during the automated stage, sending the verification results to a processing device to instruct the processing device to correct the production parameters of the automated devices.

[0079] Specifically, on the vehicle production line, operators pre-set the production parameters for each automated device. For example, based on a pre-established production plan, operators adjust the production parameters recorded by each automated device to automate operations such as vehicle assembly, welding, painting, and stamping.

[0080] During the automation process, each automated device operates according to the production parameters and sends the resulting operational information to the quality inspection equipment.

[0081] After the automation process is completed, the quality inspection equipment acquires the operation information sent by each automated device and verifies the operation results based on this information, obtaining the verification results. For example, the quality inspection equipment determines whether each automated device is operating correctly based on the operation information, or determines whether any automated devices have missed operations or malfunctions based on the quantity of operation information. If the verification results indicate that there are production problems in the automation process, suggesting that the automated devices may be malfunctioning or that the production parameters are set incorrectly, the quality inspection equipment sends an instruction to the processing equipment to correct the production parameters of the automated devices. In some embodiments, the quality inspection equipment can also send an instruction to the processing equipment to instruct it to provide prompts to the relevant operators.

[0082] In the above embodiments, by also reviewing the automated processes, the production quality of each production stage on the vehicle production line can be further controlled, the accuracy of quality inspection results can be improved, and vehicle production efficiency can be increased.

[0083] In some embodiments, the various stages of a vehicle production line can be simplified as follows: Figure 3 The flowchart shown illustrates the process. First, production parameters for each automated device in the automated process are set based on the production plan. After the automated devices sequentially perform operations such as stamping, welding, and painting on the vehicle, it proceeds to the assembly stage (one or more stages can be set up). Here, mechanical equipment (e.g., robotic arms) or manual labor assembles the vehicle. Quality inspection equipment in the assembly stage checks and verifies the assembly results. Finally, the assembled vehicle goes to the verification stage, where quality inspection equipment performs a second verification before the vehicle leaves the factory as a complete unit. The quality inspection equipment in the assembly stage can adjust the production parameters used by the automated devices in the automated process. Each quality inspection device in the assembly stage can also verify the quality inspection results output by the previous device. Similarly, the quality inspection equipment in the verification stage can perform a second verification of the quality inspection results from the assembly stage.

[0084] In some embodiments, a flowchart of a vehicle assembly line is shown as follows: Figure 4 As shown. First, production scheduling is performed by the system or manually, a production plan is created, and the information is entered into the processing equipment on the production line. Examples include vehicle RFID (Radio Frequency Identification) model information and assembler information. Process engineers then develop a control plan based on quality experience. The industrial control computer on the production line acquires relevant production parameters, such as tightening parameters, and transmits these parameters to automated equipment. Automated equipment includes, for example, noise reduction devices and torque calibrators.

[0085] For tightening equipment, it can acquire RFID vehicle model information, assembler information, and production parameters (such as tightening parameters) transmitted by the industrial control computer, and perform corresponding tightening operations on the vehicle. When the tightening equipment determines that calibration is needed based on the condition of the vehicle's components, it acquires relevant information on the calibration method and frequency output by the torque calibrator and performs calibration based on this information. Automation processes may also include stamping equipment, painting equipment, welding equipment, etc., whose tightening operations are similar to those of the tightening equipment and will not be elaborated here.

[0086] After the vehicle is tightened, it proceeds to the assembly stage, where assemblers perform the assembly and inspectors conduct online checks. Multiple assembly stages can be set up, each with multiple assemblers. For example, at the position corresponding to the last assembler in each stage, a quality inspection device is set up for the inspector to record the inspection results. The next quality inspection device can review the inspection results transmitted by the previous device. When a problem is found, it is recorded and returned to the display device with the corresponding workstation code to alert the assembler at that workstation.

[0087] After assembly, the quality inspection equipment sends the vehicle's quality defect information to the quality inspection equipment in the verification stage, where quality inspectors or the equipment itself perform a second verification. If defects are found during verification, the quality inspection equipment can return the corresponding defect information to the relevant workstation code to alert the assembler.

[0088] During the verification process, the quality inspection equipment verifies the vehicle based on each verification item. The verification information obtained for each item can be returned to the assembly stage for prompting. Finally, after the vehicle completes all quality inspections, the quality inspection equipment sends the corresponding quality information to the processing equipment. The processing equipment binds this quality information with the vehicle's RFID model information and stores it in a quality defect database. Based on this database, the processing equipment builds a quality experience database, which process engineers can use to develop control plans based on this experience.

[0089] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0090] Based on the same inventive concept, this application also provides a quality inspection device for a vehicle production line to implement the quality inspection method for the vehicle production line described above. The solution provided by this device is similar to the solution described in the above method. Therefore, the specific limitations of one or more embodiments of the quality inspection device for a vehicle production line provided below can be found in the limitations of the quality inspection method for a vehicle production line described above, and will not be repeated here.

[0091] In one embodiment, such as Figure 5 As shown, a quality inspection device 500 for a vehicle production line is provided, comprising: a receiving module 501, a quality inspection module 502, and a sending module 503, wherein:

[0092] The receiving module is used to receive the previous quality inspection result sent by the previous quality inspection equipment. The quality inspection result is obtained by inspecting the assembly result of the vehicle after the previous assembly stage is completed.

[0093] The quality inspection module is used to obtain the current quality inspection result corresponding to the current assembly stage after the current assembly stage is completed. The current quality inspection result includes the review result obtained by reviewing the previous quality inspection result during the current assembly stage.

[0094] The sending module is used to send the current quality inspection result to the next quality inspection equipment so that the next assembly stage can review it based on the current quality inspection result; until all assembly stages are completed and the assembled vehicle is obtained, the last quality inspection equipment outputs the vehicle's quality defect information.

[0095] In some embodiments, the above-mentioned device further includes a verification module, used to obtain the verification result obtained by verifying the quality defect information based on the inspection operation standard; based on the verification result, in the verification process, the assembled vehicle is subjected to secondary verification in sequence according to the verification items to obtain the verification information corresponding to each verification item; and the verification information is sent to the display device set in the assembly process corresponding to the verification information on the assembly line for prompting.

[0096] In some embodiments, the above-described apparatus further includes a comparison module for checking whether an inspection operation standard corresponding to the quality defect information is recorded; if no inspection operation standard corresponding to the quality defect information is recorded, obtaining defect image information and defect description of the vehicle; and sending the defect image information and defect description to a processing device to instruct the processing device to update the existing inspection operation standard or add a new inspection operation standard.

[0097] In some embodiments, the above-described apparatus further includes a recording module, configured to obtain the quality information of the vehicle based on the quality defect information and the verification information after the verification process is completed; send a recording instruction to the processing device to instruct the processing device to associate the quality information with the vehicle identification information of the vehicle and store it in the quality defect database; wherein the quality defect database also records quality information obtained through external feedback.

[0098] In some embodiments, the quality defect information is used to generate quality experience information corresponding to the quality defect information. The quality experience information includes at least the cause analysis, solution measures, and preventive measures corresponding to the quality defect information. The quality experience information is stored in association with the quality defect information in a quality experience database for the purpose of formulating inspection operation standards based on the stored quality experience information.

[0099] In some embodiments, an automation stage is provided before the assembly stage, and the automation stage includes multiple automated devices. The device further includes an automation module, which is used to acquire operation information obtained by each automated device performing automated operations based on production parameters recorded in a pre-defined production plan after the automation stage is completed; to verify the operation results of the automation stage based on the operation information to obtain a verification result; and to send the verification result to a processing device if the verification result indicates that there is a production problem in the automation stage, so as to instruct the processing device to correct the production parameters of the automated devices.

[0100] Each module in the quality inspection device of the aforementioned vehicle production line can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device, or stored in the memory of a computer device as software, so that the processor can call and execute the corresponding operations of each module.

[0101] In one embodiment, a computer device is provided, which may be the quality inspection device in the foregoing embodiments, and its internal structure diagram may be as follows: Figure 6As shown, the computer device includes a processor, memory, input / output interface, communication interface, display unit, and input device. The processor, memory, and input / output interface are connected via a system bus, and the communication interface, display unit, and input device are also connected to the system bus via the input / output interface. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The input / output interface is used for exchanging information between the processor and external devices. The communication interface is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, mobile cellular networks, NFC (Near Field Communication), or other technologies. When the computer program is executed by the processor, it implements a quality inspection method for a vehicle production line. The display unit is used to form a visually visible image and can be a display screen, projection device, or virtual reality imaging device. The display screen can be an LCD screen or an e-ink screen. The input device of the computer device can be a touch layer covering the display screen, or buttons, trackballs, or touchpads set on the casing of the computer device, or external keyboards, touchpads, or mice, etc.

[0102] Those skilled in the art will understand that Figure 6 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0103] In one embodiment, a computer device is also provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps in the above method embodiments.

[0104] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon that, when executed by a processor, implements the steps in the above method embodiments.

[0105] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps in the above method embodiments.

[0106] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0107] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0108] 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 method of quality inspection of a vehicle production line, characterized in that, A plurality of quality inspection devices are arranged on a vehicle production line, and the method is executed by any quality inspection device, and the method comprises: receiving a previous quality inspection result sent by a previous quality inspection device, the previous quality inspection result being obtained by performing quality inspection on an assembly result of a vehicle after a previous assembly link ends; after a current assembly link ends, obtaining a current quality inspection result corresponding to the current assembly link, the current quality inspection result comprising a review result obtained by reviewing the previous quality inspection device and a quality inspection result obtained by performing quality inspection on an assembly result of the current assembly link; sending the current quality inspection result to a next quality inspection device, so that a next assembly link reviews based on the current quality inspection result, until a vehicle assembly is completed after all assembly links end, and quality defect information of the vehicle is output by a last quality inspection device; the method further comprises: obtaining a verification result obtained by verifying the quality defect information based on an inspection operation standard; based on the verification result, performing secondary verification on the vehicle assembly in a verification link according to verification items in sequence to obtain verification information corresponding to each verification item; sending the verification information to a display device arranged in an assembly link corresponding to the verification information on the production line to prompt; an automatic link is further arranged before the assembly link, and a plurality of automatic devices are arranged in the automatic link; the method further comprises: after the automatic link ends, obtaining operation information obtained by each automatic device based on production parameters recorded in a pre-prepared production plan to perform automatic operation; verifying an operation result of the automatic link based on the operation information to obtain a verification result; in a case where the verification result represents that there is a production problem in the automatic link, sending the verification result to a processing device to instruct the processing device to modify the production parameters of the automatic device.

2. The method of claim 1, wherein, Before the obtaining of the verification result obtained by verifying the quality defect information based on the inspection operation standard, the method further comprises: checking whether an inspection operation standard corresponding to the quality defect information is recorded; in a case where the inspection operation standard corresponding to the quality defect information is not recorded, obtaining defect image information and defect description of the vehicle; sending the defect image information and the defect description to a processing device to instruct the processing device to update the existing inspection operation standard or add a new inspection operation standard.

3. The method of claim 1, wherein, The method further comprises: after the verification link ends, obtaining quality information of the vehicle based on the quality defect information and the verification information; sending a recording instruction to a processing device to instruct the processing device to store the quality information in association with vehicle identification information of the vehicle in a quality defect library; wherein the quality defect library further records quality information obtained through external feedback.

4. The method of claim 3, wherein, The quality defect information is used to form quality experience information corresponding to the quality defect information, and the quality experience information at least includes cause analysis, solution measures, and prevention measures corresponding to the quality defect information; and the quality experience information and the quality defect information are stored in a quality experience library in association, so as to formulate an inspection operation standard according to the stored quality experience information.

5. An inspection device for a vehicle production line, characterized in that A plurality of quality inspection devices are arranged on a vehicle production line, and any one of the quality inspection devices comprises: a receiving module configured to receive a previous inspection result sent by a previous quality inspection device, the inspection result being obtained by inspecting an assembly result of a vehicle after a previous assembly link ends; a quality inspection module configured to obtain a current inspection result corresponding to a current assembly link after the current assembly link ends, the current inspection result including a review result obtained by reviewing the previous quality inspection device and an inspection result obtained by inspecting an assembly result of the current assembly link; a sending module configured to send the current inspection result to a next quality inspection device, so that the next assembly link reviews based on the current inspection result; until a vehicle is completely assembled after all assembly links end, and quality defect information of the vehicle is output by a last quality inspection device; the device further comprises a verification module configured to obtain a verification result obtained by verifying the quality defect information based on an inspection operation standard; based on the verification result, a vehicle that is completely assembled is secondarily verified in a verification link according to verification items in sequence, to obtain verification information corresponding to each verification item; and the verification information is sent to a display device arranged in an assembly link corresponding to the verification information on the production line, to be prompted; the device further comprises an automation module configured to obtain operation information obtained by each automation device based on production parameters recorded in a pre-prepared production plan after an automation link ends; and verify an operation result of the automation link based on the operation information, to obtain a verification result; and in a case where the verification result indicates that there is a production problem in the automation link, the verification result is sent to a processing device, to instruct the processing device to correct the production parameters of the automation device. 6.A computer device, comprising a memory and a processor, wherein the memory stores a computer program, and the computer device is configured to perform the method according to any one of claims 1-5 when the computer program is executed by the processor. The processor executes the computer program to implement the steps of the method of any one of claims 1 to 4.

7. A computer-readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to implement the steps of the method of any one of claims 1 to 4.

8. A computer program product comprising a computer program, characterized in that, The computer program is executed by the processor to implement the steps of the method of any one of claims 1 to 4.

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