Vehicle accessory traceability management method and system

Abstract

The invention discloses a vehicle accessory traceability management method and a vehicle accessory traceability management system, and belongs to the technical field of assembly management. The accessory source information of the accessories is compared with the needed accessory information of the corresponding needed assembly positions one by one to judge whether the accessories are wrongly assembled or not, and then whether the accessories are wrongly put or not is judged according to the number of the wrongly assembled accessories; deviation comparison is carried out on the equipment parameter curve of the part which does not belong to the required assembling position where the part is wrongly assembled and the corresponding required assembling equipment parameter curve to judge whether parameter errors exist in the assembling equipment or not; if the parameter errors do not exist, whether the part is deformed or not is recognized, and then the quality of the part is judged; progressive analysis and judgment are carried out on the aspects of fitting misloading, assembling equipment parameters and fitting quality, and fitting traceability reliability and traceability efficiency in assembling production are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of assembly management, in particular to a vehicle accessory traceability management method and system. BACKGROUND

[0002] Each product of a vehicle needs to be assembled by different accessories, and in the assembly production line, the assembly quality of the product accessories does not meet the standard for a long time, and in order to improve the assembly quality, it is necessary to analyze the factors of the assembly quality not meeting the standard, and in the existing production management technology, the traditional traceability management method is usually based on the assembly quality of the accessories to trace whether the assembly equipment is abnormal, which leads to the fact that the traceability result is not reliable, therefore, how to improve the reliability of the traceability of the assembly quality factors of the accessories becomes a technical problem to be solved SUMMARY In order to solve the technical problems existing in the prior art, the present application provides a vehicle accessory traceability management method, which comprises the following steps: After the assembly of the product accessories is completed, a preset accessory data list of the product is obtained, and the preset accessory data list records the required assembly position of the product and the required accessory information and required assembly equipment parameter curve corresponding to each required assembly position; The two-dimensional code of the accessory is scanned and identified to obtain accessory source information and accessory assembly information, and the accessory assembly information includes the equipment number, equipment parameter curve and assembly time of the assembly equipment; The accessory source information of the accessory is one-to-one corresponding to the required accessory information of the corresponding required assembly position, if it is not completely the same, then the assembly condition type of the corresponding required assembly position is accessory misassembly, if there are more than or equal to a preset number of products in the same required assembly position that appear accessory misassembly, and the corresponding equipment number is the same, then the material taking place of the corresponding assembly equipment exists error in putting accessories; The equipment parameter curve of the accessory which does not belong to accessory misassembly is compared with the corresponding required assembly equipment parameter curve, and whether the corresponding assembly equipment exists parameter error is judged according to the comparison result; If there is a parameter error, the worker is notified to correct, if there is no parameter error, whether the accessory exists deformation is identified, if it exists, the quality of the corresponding accessory is judged to be insufficient.

[0003] Further, the required accessory information and the accessory source information both include accessory type, accessory size and supplier.

[0004] Further, before the two-dimensional code of the accessory is scanned and identified to obtain the accessory source information and the accessory assembly information, it further comprises: Whether the required assembly position exists accessory is identified, if not, the assembly condition type of the corresponding required assembly position is accessory missing, and the worker is notified to assemble the required assembly position.

[0005] Further, the identification of whether the required assembly position exists the accessory, specifically: The feature information on the required assembly position and the feature information of all accessories are compared in similarity by the existing image detection technology, if each similarity is less than a first preset similarity threshold, then the required assembly position does not exist the accessory, otherwise exists the accessory.

[0006] Further, before obtaining the preset accessory data list of the product after completing the accessory assembly, further comprising: In the process of assembling the accessories to the product, the position name of the current assembly position is marked on the two-dimensional code of the current assembled accessory, and the two-dimensional code of the current assembled accessory and the two-dimensional code of the accessory already assembled to the current product are stored with each other.

[0007] Further, the identification of whether the required assembly position exists the accessory, specifically: Identify whether the two-dimensional code exists on the required assembly position, if not, then determine whether the two-dimensional code of the current required assembly position exists in the two-dimensional code on the other required assembly positions of the current product, if none of the two-dimensional codes of the required assembly positions exist, then the required assembly position does not exist the accessory, otherwise exists the accessory.

[0008] Further, the device parameter curve of the accessory that does not belong to the required assembly position of the accessory misassembly is compared with the corresponding required assembly device parameter curve, and whether the corresponding assembly device exists parameter error is determined according to the comparison result, specifically: The horizontal axis of the device parameter curve and the required assembly device parameter curve represents the assembly time, and the vertical axis represents the device parameter value, the non-overlapping part area between the device parameter curve of the accessory and the required assembly device parameter curve of the corresponding required assembly position is analyzed, if the non-overlapping part area is greater than or equal to a preset area threshold, then the corresponding assembly device exists parameter error; The device parameter value on the device parameter curve and the device parameter value on the required assembly device parameter curve are matched according to whether the corresponding assembly time is the same to obtain a plurality of matching point pairs, if the absolute value of the difference of any matching point pair is greater than or equal to a preset error, then the corresponding assembly device exists parameter error.

[0009] Further, if there is a parameter error, the worker is notified to correct, specifically: If there is a parameter error, the worker is informed to adjust the parameters of the corresponding device or repair the device according to the device number, and then determine the product assembly batch according to the assembly time of the spare parts, screen out the products assembled by the assembly device corresponding to the device number and the same product assembly batch, and reassemble the corresponding required assembly position.

[0010] Further, the recognition of whether the spare part is deformed is specifically: Obtaining a first surface image before assembly and a second surface image after assembly of the corresponding spare part, the shooting parameters of the first surface image and the second surface image are consistent; After extracting the feature information of the first surface image and the second surface image by the existing image detection technology, similarity analysis is performed according to the feature information, and if the similarity is less than a second preset similarity threshold, there is deformation.

[0011] The application also provides a vehicle spare part traceability management system, comprising: The first data acquisition module is used to obtain the preset spare part data list of the product after the assembly of the spare part is completed, and the preset spare part data list records the required assembly position of the product and the required spare part information and the required assembly device parameter curve corresponding to each required assembly position. The second data acquisition module is used to scan and identify the two-dimensional code of the spare part to obtain the spare part source information and the spare part assembly information, and the spare part assembly information includes the device number, the device parameter curve and the assembly time of the assembly device. The first analysis module is used to one-to-one correspond the spare part source information of the spare part with the required spare part information of the corresponding required assembly position, if they are not completely the same, the assembly condition type of the corresponding required assembly position is spare part misassembly, if there are more than or equal to a preset number of products in the same required assembly position with spare part misassembly, and the corresponding device numbers are the same, the feeding place of the corresponding assembly device has a spare part error; The second analysis module is used to offset compare the device parameter curve of the spare part of the required assembly position not belonging to the spare part misassembly with the corresponding required assembly device parameter curve, and judge whether the corresponding assembly device has a parameter error according to the comparison result. The third analysis module is used to inform the worker to correct if there is a parameter error, and to recognize whether the spare part is deformed if there is no parameter error, and to judge that the quality of the corresponding spare part is insufficient if there is deformation.

[0012] Compared with the prior art, the application has the following advantages: The application obtains accessory source information and accessory assembly information by scanning and identifying the two-dimensional code of the accessory, one-to-one compares the accessory source information of the accessory with the required accessory information of the corresponding required assembly position, judges whether the accessory is misassembled, and further judges whether the accessory is misassembled according to the number of misassemblies, and further judges whether the accessory quality exists according to whether the equipment parameter curve of the accessory at the required assembly position does not belong to accessory misassembly and the corresponding required assembly equipment parameter curve deviates, and whether the accessory exists deformation if there is no parameter error of the assembly equipment, and further judges the accessory quality, and the accessory traceability reliability and traceability efficiency in the assembly production are improved through progressive analysis and judgment in the aspects of accessory misassembly, assembly equipment parameters and accessory quality. BRIEF DESCRIPTION OF DRAWINGS

[0013] The drawings incorporated into the specification and forming a part of the specification, indicate embodiments consistent with the present application and, together with the specification, serve to explain the principles of the application.

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below, and obviously, other drawings can be obtained by those skilled in the art without creative labor.

[0015] Figure 1 is a flowchart of a vehicle accessory traceability management method of the present application. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application, and obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0017] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0018] In addition, the description related to "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the present application.

[0019] Embodiment one Referring to Figure 1 As shown in the figure, the present application provides a kind of vehicle accessory traceability management method, and specifically includes the following steps: S1, product completes accessory assembly, obtains the preset accessory data list of product, the preset accessory data list records the required assembly position of product and the required accessory information and required assembly equipment parameter curve corresponding to each required assembly position, the required accessory information includes accessory type, accessory size and supplier; S2, scan and identify the two-dimensional code of accessory to obtain accessory source information and accessory assembly information, the accessory source information includes accessory type, accessory size and supplier, and the accessory assembly information includes the equipment number, equipment parameter curve and assembly time of assembly equipment; S3, the accessory source information of accessory is one-to-one corresponding with the required accessory information of corresponding required assembly position, if not exactly the same, then the assembly condition type of corresponding required assembly position is accessory misassembly, if there is greater than or equal to preset number of products in the same required assembly position accessory misassembly, and the corresponding equipment number is the same, then the material taking place of corresponding assembly equipment exists error in putting accessory; S4, the equipment parameter curve of accessory not belonging to accessory misassembly is compared with the corresponding required assembly equipment parameter curve, and whether the corresponding assembly equipment exists parameter error is judged according to the comparison result; S5, if there is parameter error, notify staff to correct, if there is no parameter error, identify whether the accessory exists deformation, if there is, judge the quality of corresponding accessory is insufficient.

[0020] S1, obtain the preset accessory data list of product: In step S1, the required accessory information and required assembly information corresponding to each required assembly position are recorded in the database in advance, and the required assembly information is set according to the assembly production line equipment of user.

[0021] In some embodiments, during the assembly of the product, the position name of the current assembly position is marked on the two-dimensional code of the current assembly part, and the two-dimensional code of the current assembly part is stored with the two-dimensional code of the part of the current product that has been completed.

[0022] The two-dimensional codes are stored with each other, that is, the two-dimensional code information of one two-dimensional code is recorded in the other two-dimensional code. For example, the two-dimensional code B is recorded in the two-dimensional code A. When the two-dimensional code A is scanned, the information recorded in the two-dimensional code B can be obtained in addition to the information recorded in the two-dimensional code A. When the two-dimensional code of the part is scanned and identified in step S2, the two-dimensional code of the other part of the product can be obtained, so that the two-dimensional code of the part cannot be scanned to obtain the required part information and assembly information when the two-dimensional code of the part is damaged.

[0023] Before the two-dimensional code of the part is scanned and identified in step S2 to obtain the part source information and the part assembly information, it is further determined whether the part exists at the required assembly position. If not, the assembly condition type corresponding to the required assembly position is part missing, and the worker is notified to assemble the part at the required assembly position.

[0024] In some embodiments, the determination of whether the part exists at the required assembly position is as follows. The feature information on the required assembly position is extracted and compared with the feature information of all parts by using the existing image detection technology. If all the similarities are less than a first preset similarity threshold, it is determined that the part does not exist at the required assembly position, otherwise, the part exists at the required assembly position.

[0025] In another embodiment, the determination of whether the part exists at the required assembly position is as follows. It is determined whether the two-dimensional code exists at the required assembly position. If not, it is determined whether the two-dimensional code of the required assembly position exists in the two-dimensional code of the other required assembly position of the current product. If not, it is determined that the part does not exist at the required assembly position, otherwise, the part exists at the required assembly position.

[0026] In step S2, the two-dimensional code of the part is a two-dimensional code assigned to each part in advance, and the part source information is recorded in the two-dimensional code in advance. In the assembly process, the type, number, equipment parameter curve and assembly time of the assembly equipment are obtained to form the part assembly information of the corresponding part, and the part assembly information is recorded in the two-dimensional code of the corresponding part.

[0027] In step S4, the equipment parameter curve of the part at the required assembly position that does not belong to the part missing is compared with the corresponding required assembly equipment parameter curve, and it is determined whether the corresponding assembly equipment has a parameter error according to the comparison result, and the determination is as follows. The horizontal axis of the equipment parameter curve and the required assembly equipment parameter curve represents assembly time, and the vertical axis represents equipment parameter value. The non-overlapping area between the equipment parameter curve of the accessory and the required assembly equipment parameter curve of the corresponding required assembly position is analyzed. If the non-overlapping area is greater than or equal to a preset area threshold, the corresponding assembly equipment has a parameter error. The equipment parameter value on the equipment parameter curve and the equipment parameter value on the required assembly equipment parameter curve are matched according to whether the corresponding assembly time is the same to obtain a plurality of matching point pairs. If the absolute value of the difference of any matching point pair is greater than or equal to a preset error, the corresponding assembly equipment has a parameter error. For example, at time t of the horizontal axis assembly time, the equipment parameter value on the equipment parameter curve is a1, and the equipment parameter value on the required assembly equipment parameter curve is a2. If |a1-a2| is greater than or equal to a preset error, the corresponding assembly equipment has a parameter error.

[0028] The non-overlapping area is the area surrounded by the intersection point and the curve.

[0029] In step S3, if the corresponding assembly equipment has a put-in accessory error, the worker is notified to reselect and put in the accessories according to the corresponding required accessory information according to the equipment number.

[0030] In this scheme, when the production line assembly equipment performs corresponding accessory assembly, the production personnel will store the corresponding accessories in the corresponding material taking place of the equipment (accessory storage point) in advance. The assembly equipment needs to extract or clamp the accessories from the material taking place to assemble the product, so it is necessary to ensure that the accessories are put in correctly.

[0031] In step S5, if there is a parameter error, the worker is notified to correct it, specifically: If there is a parameter error, the worker is notified to adjust the parameters of the corresponding equipment or repair the equipment, and then determine the product assembly batch according to the assembly time of the accessory, select the product assembled by the assembly equipment with the corresponding equipment number and the same product assembly batch, and reassemble the corresponding required assembly position.

[0032] The assembly time determines the product assembly batch by formulating an assembly production plan, such as which assembly link at which time point belongs to which product assembly batch.

[0033] In step S5, the identification of whether the accessory has deformation is specifically: Obtaining a first surface image before assembly and a second surface image after assembly of the corresponding accessory, the shooting parameters of the first surface image and the second surface image are consistent; The shooting parameters include camera model, shooting light, shooting angle, shooting distance and the like; Through the existing image detection technology, the feature information of the first surface image and the second surface image is extracted respectively, and then similarity analysis is carried out according to the feature information, if the similarity is less than the second preset similarity threshold, there is deformation.

[0034] The similarity of the object in the image is analyzed by comparing the feature information, which belongs to the prior art, and will not be repeated here.

[0035] Embodiment two The application also provides a vehicle accessory traceability management system, which specifically comprises: The first data acquisition module is used for obtaining the preset accessory data list of the product after the accessory assembly is completed, and the preset accessory data list records the required assembly position of the product and the required accessory information and required assembly equipment parameter curve corresponding to each required assembly position; The second data acquisition module is used for scanning and identifying the two-dimensional code of the accessory to obtain the accessory source information and the accessory assembly information, and the accessory assembly information includes the equipment number, equipment parameter curve and assembly time of the assembly equipment; The first analysis module is used for one-to-one correspondence between the accessory source information of the accessory and the required accessory information of the corresponding required assembly position, if they are not completely same, the assembly condition type of the corresponding required assembly position is accessory misassembly, if there are more than or equal to a preset number of products in the same required assembly position, and the corresponding equipment number is same, the feeding position of the corresponding assembly equipment exists accessory misplacement; The second analysis module is used for deviation comparison between the equipment parameter curve of the accessory of the required assembly position not belonging to accessory misassembly and the corresponding required assembly equipment parameter curve, and whether the corresponding assembly equipment exists parameter error is judged according to the comparison result; The third analysis module is used for notifying the staff to correct if there is parameter error, and identifying whether the accessory exists deformation if there is no parameter error, if there is, the quality of the corresponding accessory is insufficient.

[0036] The required accessory information includes accessory type, accessory size and supplier; The accessory source information includes accessory type, accessory size and supplier.

[0037] The system further comprises a first execution module, which is used for, in the process of assembling the accessory to the product, marking the position name of the current assembly position to the two-dimensional code of the current assembled accessory, and storing the two-dimensional code of the current assembled accessory and the two-dimensional code of the accessory of the current product which has been assembled.

[0038] The system further comprises a fourth analysis module configured to identify whether the accessory exists at the required assembly position before the two-dimensional code of the accessory is scanned to obtain the accessory source information and the accessory assembly information, and if not, the assembly condition type corresponding to the required assembly position is accessory missing assembly, and the staff is notified to assemble the required assembly position.

[0039] In some embodiments, the identification of whether the accessory exists at the required assembly position specifically comprises: The feature information on the required assembly position is extracted by the existing image detection technology, and the similarity comparison is performed between the feature information and the feature information of all accessories, if each similarity is less than a first preset similarity threshold, then the accessory does not exist at the required assembly position, otherwise the accessory exists.

[0040] In another embodiment, the identification of whether the accessory exists at the required assembly position specifically comprises: The identification of whether the two-dimensional code exists at the required assembly position, if not, the determination of whether the two-dimensional code of the current required assembly position exists in the two-dimensional code of other required assembly positions of the current product, if none of the two-dimensional codes of the required assembly positions exist, then the accessory does not exist at the required assembly position, otherwise the accessory exists.

[0041] The device parameter curve of the accessory at the required assembly position which does not belong to accessory misassembly is compared with the corresponding required assembly device parameter curve, and whether the corresponding assembly device has parameter error is determined according to the comparison result, specifically: The horizontal axis of the device parameter curve and the required assembly device parameter curve represents the assembly time, and the vertical axis represents the device parameter value, the non-overlapping part area between the device parameter curve of the accessory and the required assembly device parameter curve of the corresponding required assembly position is analyzed, if the non-overlapping part area is greater than or equal to a preset area threshold, then the corresponding assembly device has parameter error, the device parameter value on the device parameter curve and the device parameter value on the required assembly device parameter curve are matched according to whether the corresponding assembly time is the same to obtain a plurality of matching point pairs, if the absolute value of the difference of any matching point pair is greater than or equal to a preset error, then the corresponding assembly device has parameter error.

[0042] If the corresponding assembly device has parameter error, the staff is notified to reselect and put the accessory according to the corresponding required accessory information according to the device number at the corresponding material taking place.

[0043] If the parameter error exists, the staff is notified to correct, specifically: If there is a parameter error, the worker is informed to adjust the parameters of the corresponding device or repair the device according to the device number, and then determine the product assembly batch according to the assembly time of the spare parts, screen out the products assembled by the assembly device corresponding to the device number and the same product assembly batch, and then reassemble the corresponding required assembly position.

[0044] The method identifies whether the spare part is deformed, and specifically comprises: The first surface image before assembly and the second surface image after assembly of the corresponding spare part are acquired, and the shooting parameters of the first surface image and the second surface image are consistent; feature information of the first surface image and the second surface image is extracted respectively through an existing image detection technology, and similarity analysis is performed according to the feature information; if the similarity is less than a second preset similarity threshold, there is deformation.

[0045] Embodiment three The electronic device also includes a processor, a sending device, an input device, an output device and a memory. The processor can be implemented in the form of a general-purpose CPU (Central Processing Unit), a microprocessor, an application-specific integrated circuit, or one or more integrated circuits, and is used to execute a related program to implement the technical solutions provided by the embodiments of the present application. The memory can be implemented in the form of a read-only memory (ReadOnly Memory, ROM), a static storage device, a dynamic storage device or a random access memory (Random Access Memory, RAM), and is used to store computer program codes. The computer program codes include computer instructions, and when the processor executes the computer instructions, the electronic device executes the method in any one of the possible implementation manners described above.

[0046] Embodiment four The present application also provides a computer readable storage medium, and the computer readable storage medium stores a computer program. The computer program includes program instructions, and when the program instructions are executed by the processor of the electronic device, the processor executes the method in any one of the possible implementation manners described above.

[0047] The present application has the following beneficial effects: The application obtains accessory source information and accessory assembly information by scanning and identifying the two-dimensional code of the accessory, one-to-one compares the accessory source information of the accessory with the required accessory information of the corresponding required assembly position, judges whether the accessory is misassembled, further judges whether the accessory is misassembled according to the number of misassembled accessories, and further judges whether the assembly equipment has a parameter error and whether the accessory is deformed under the condition that there is no parameter error, and further judges the quality of the accessory, judges whether the accessory is misassembled, the parameter of the assembly equipment and the quality of the accessory, and improves the traceability reliability and efficiency of the accessory in the assembly production.

[0048] In the description of the specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the application. In the description of the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0049] In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit. When the integrated unit is realized in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application essentially or say the part that contributes to the prior art or the whole or part of the technical solutions can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a plurality of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method of each embodiment of the present application. The foregoing storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and various program storage media.

[0050] The foregoing is considered as illustrative only of the principles of the application. Numerous modifications and changes will readily occur to those skilled in the art, and it is intended to embrace all such modifications and changes that fall within the scope of the application. Accordingly, the application is not to be restricted in scope to the specific embodiments disclosed herein but is to be accorded the full scope that the principles and novel features request appropriately granted.

Claims

1. A method for traceability management of vehicle parts, characterized in that, Includes the following steps: After the product completes the assembly of the parts, the product's preset parts data list is obtained. The preset parts data list records the required assembly positions of the product, as well as the required parts information and required assembly equipment parameter curves corresponding to each required assembly position. Scan the QR code of the accessory to obtain the accessory source information and accessory assembly information. The accessory assembly information includes the equipment number of the assembly equipment, the equipment parameter curve and the assembly time. Match the part source information of the parts with the part information required at the corresponding assembly position. If they are not completely the same, the assembly status of the corresponding assembly position is part misassembly. If there are more than or equal to a preset number of products with part misassembly at the same assembly position and the corresponding equipment numbers are the same, then there is a part delivery error at the material pick-up location of the corresponding assembly equipment. Compare the equipment parameter curves of the parts that are not mis-installed with the corresponding assembly equipment parameter curves, and determine whether there are parameter errors in the corresponding assembly equipment based on the comparison results. If there is a parameter error, notify the staff to correct it. If there is no parameter error, check if the part is deformed. If it is, determine that the quality of the corresponding part is insufficient.

2. The vehicle parts traceability management method according to claim 1, characterized in that, The required accessory information and accessory source information both include accessory type, accessory size, and supplier.

3. The vehicle parts traceability management method according to claim 1, characterized in that, Before scanning and recognizing the QR code of the accessory to obtain the accessory source information and accessory assembly information, the following steps are also included: Identify whether there are any parts at the required assembly location. If not, the assembly status for the required assembly location is "parts missing," and notify the staff to assemble the required location.

4. The vehicle parts traceability management method according to claim 3, characterized in that, The process of identifying whether an accessory exists at the required assembly location specifically involves: The feature information of the required assembly position is extracted by existing image detection technology and compared with the feature information of all accessories one by one. If the similarity is less than the first preset similarity threshold, there is no accessory at the corresponding required assembly position; otherwise, there is an accessory.

5. The vehicle parts traceability management method according to claim 3, characterized in that, Before obtaining the product's preset parts data list after the product has completed parts assembly, the process also includes: During the assembly of product components, the location name of the current assembly position is used to name the QR code of the currently assembled component, and the QR code of the currently assembled component is stored together with the QR codes of the components that have been assembled in the current product.

6. The vehicle parts traceability management method according to claim 5, characterized in that, The process of identifying whether an accessory exists at the required assembly location specifically involves: If a QR code is present at the required assembly location, then the system checks if the QR code for the current assembly location is present in other required assembly locations of the product. If no QR code for the required assembly location is present in any of these locations, then there is no accessory at the required assembly location; otherwise, there is an accessory.

7. The vehicle parts traceability management method according to claim 1, characterized in that, The process involves comparing the equipment parameter curves of components that are not mis-assembled with the corresponding parameter curves of the required assembly equipment, and determining whether the corresponding assembly equipment has parameter errors based on the comparison results. Specifically: The horizontal axis of both the equipment parameter curve and the required assembly equipment parameter curve represents the assembly time, and the vertical axis represents the equipment parameter value. The area of ​​the non-overlapping part between the equipment parameter curve of the accessory and the required assembly equipment parameter curve of the corresponding required assembly position is analyzed. If the area of ​​the non-overlapping part is greater than or equal to a preset area threshold, then the corresponding assembly equipment has parameter errors. The equipment parameter values ​​on the equipment parameter curve are matched with the equipment parameter values ​​on the required assembly equipment parameter curve based on whether the corresponding assembly time is the same to obtain multiple matching point pairs. If the absolute value of the difference between any matching point pair is greater than or equal to the preset error, then the corresponding assembly equipment has parameter errors.

8. The vehicle parts traceability management method according to claim 1, characterized in that, If any parameter errors are found, staff will be notified to correct them, specifically as follows: If there are parameter errors, the staff will be notified to adjust the parameters of the corresponding equipment or repair the equipment according to the equipment number. Then, the product assembly batch will be determined according to the assembly time of the parts. After selecting the products that are assembled by the assembly equipment with the corresponding equipment number and are the same as the product assembly batch, the corresponding required assembly positions will be reassembled.

9. The vehicle parts traceability management method according to claim 1, characterized in that, The identification of whether the accessory is deformed is specifically as follows: Acquire a first surface image of the corresponding component before assembly and a second surface image after assembly, wherein the shooting parameters of the first surface image and the second surface image are consistent; After extracting feature information from the first surface image and the second surface image using existing image detection techniques, a similarity analysis is performed based on the feature information. If the similarity is less than a second preset similarity threshold, then deformation exists.

10. A vehicle parts traceability management system, employing the vehicle parts traceability management method as described in any one of claims 1 to 9, characterized in that, include: The first data acquisition module is used to acquire a preset accessory data list of the product after the accessory assembly is completed. The preset accessory data list records the required assembly positions of the product and the required accessory information and required assembly equipment parameter curves corresponding to each required assembly position. The second data acquisition module is used to scan and identify the QR code of the parts to obtain the part source information and part assembly information. The part assembly information includes the equipment number of the assembly equipment, the equipment parameter curve and the assembly time. The first analysis module is used to match the part source information of the parts with the required part information of the corresponding assembly position. If they are not completely the same, the assembly situation type of the corresponding assembly position is part misassembly. If there are more than or equal to a preset number of products with part misassembly in the same required assembly position and the corresponding equipment numbers are the same, then there is a part delivery error at the material pick-up location of the corresponding assembly equipment. The second analysis module is used to compare the equipment parameter curves of the parts that are not mis-installed with the corresponding assembly equipment parameter curves, and to determine whether there are parameter errors in the corresponding assembly equipment based on the comparison results. The third analysis module is used to notify staff to correct any parameter errors, and if no parameter errors are found, to identify whether the parts are deformed. If so, it determines that the corresponding parts are of insufficient quality.

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