CN116342937A - Passenger vehicle exterior trim error-proofing detection device and method based on machine vision - Google Patents

Passenger vehicle exterior trim error-proofing detection device and method based on machine vision Download PDF

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Publication number
CN116342937A
CN116342937A CN202310228203.5A CN202310228203A CN116342937A CN 116342937 A CN116342937 A CN 116342937A CN 202310228203 A CN202310228203 A CN 202310228203A CN 116342937 A CN116342937 A CN 116342937A
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China
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vehicle
detection
result
detection device
standard
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Chinese (zh)
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冯立
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Shanghai Huicheng Intelligent System Co ltd
Shanghai H Visions Engineering Technology Service Co ltd
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Shanghai Huicheng Intelligent System Co ltd
Shanghai H Visions Engineering Technology Service Co ltd
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Priority to CN202310228203.5A priority Critical patent/CN116342937A/en
Publication of CN116342937A publication Critical patent/CN116342937A/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/70—Arrangements for image or video recognition or understanding using pattern recognition or machine learning
    • G06V10/764—Arrangements for image or video recognition or understanding using pattern recognition or machine learning using classification, e.g. of video objects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/40—Extraction of image or video features
    • G06V10/56—Extraction of image or video features relating to colour
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/70—Arrangements for image or video recognition or understanding using pattern recognition or machine learning
    • G06V10/74—Image or video pattern matching; Proximity measures in feature spaces
    • G06V10/761—Proximity, similarity or dissimilarity measures
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00—Scenes; Scene-specific elements
    • G06V20/50—Context or environment of the image
    • G06V20/56—Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/30—Computing systems specially adapted for manufacturing

Abstract

The utility model provides a passenger car exterior trim mistake proofing detection device and method based on machine vision, it includes setting up automatic vision detection device, standard judgement and maintenance device, vehicle testing result report and send device, vehicle reworking processing apparatus that connect gradually on the production line, install sensor and industrial camera on the automatic vision detection device, there is identification algorithm chip in the standard judgement and maintenance device, install display lamp and alarm on the vehicle testing result report and send device, vehicle reworking processing module still is connected with plate link chain control system. The invention has the advantages of technological innovation, convenience, simplicity, visual interface, intelligent system, comprehensive equipment early warning scheme, flexible and simple project self-changing or newly added detection project, strong expansibility of introducing new vehicles and the like.

Description

Passenger vehicle exterior trim error-proofing detection device and method based on machine vision
Technical Field
The invention relates to the field of visual error-proofing detection of industrial equipment, in particular to a passenger car exterior trim error-proofing detection device and method based on machine vision.
Background
The problems of large manual detection workload, non-uniform inspection standards, inaccurate information of wrong materials, high reworking and reinspection time cost and the like exist in the vehicle error-proofing detection process in the current industrial field.
Based on the problems, the invention designs the passenger car exterior trim mistake-proofing detection device and method based on machine vision, which are designed by the invention, and the visual detection technology is used for comparing the photographing analysis of the whole car appearance parts, alarming and prompting unqualified items, simultaneously carrying out associated production stop line control, and reporting detection conclusion to an IOT platform, thus preventing the wrong assembly problem in the manufacturing process from flowing out, and achieving the aim of upgrading the whole car appearance inspection from manual subjective inspection to automatic intelligent inspection. The invention can conveniently realize error-proofing detection of appearance parts developed by the whole vehicle, supports automatic identification of vehicle material numbers, generates a standard configuration library, establishes a standard model, visually reports the error-proofing detection result of the vehicle and simplifies the reworking flow of the vehicle.
Disclosure of Invention
The invention aims to provide a passenger car exterior trim error-proofing detection device and method based on machine vision, which can conveniently realize error-proofing detection on appearance parts developed by a whole car, support automatic identification of car material numbers, generation of a standard configuration library, establishment of a standard model, intuitively report a car error-proofing detection result and simplify a car reworking process. The invention has the advantages of technological innovation, convenience, simplicity, visual interface, intelligent system, comprehensive equipment early warning scheme, flexible and simple project self-changing or newly added detection project, strong expansibility of introducing new vehicles and the like.
The invention is realized by the following technical scheme: the utility model provides a passenger car exterior trim mistake proofing detection device based on machine vision, it is including setting up automatic vision detection device, standard judgement and maintenance device, vehicle testing result that connect gradually on the production line report and send device, vehicle reworking processing apparatus, install sensor and industrial camera on the automatic vision detection device, there is identification algorithm chip in the standard judgement and the maintenance device, install display lamp and alarm on the vehicle testing result report and send device, vehicle reworking processing module still is connected with plate link chain control system.
As preferable: the automatic vision detection device can recognize the vehicle mark through the installed sensor to automatically read the current vehicle VIN, and according to the VIN, the corresponding vehicle material number and vehicle type information are called from the production system, the corresponding detection program is called at the same time, the appearance and parts of the whole vehicle are photographed through the industrial camera, finally, the difference between the photographed image and the image in the database can be compared through various vision detection methods on the chip in the automatic vision detection device, and the system can automatically judge whether the vehicle has a problem.
As preferable: the standard judging and maintaining device is characterized in that an image analyzed by the visual detection module is identified through an identification algorithm chip arranged in the detection device, the identification algorithm can identify the approximate color, and if the system detects that the material is a new whole vehicle material number, a detection standard configuration library can be newly built in the system.
As preferable: the vehicle detection result reporting device judges the result through the detection standard after the automatic visual detection device finishes detecting all the error-proof projects, the comparison result is displayed on a display screen, if the comparison result is qualified, the judgment result is green, the vehicle normally passes through the detection station, and the detection result is uploaded to the production system; if the detection is not qualified, displaying the judging result as red, prompting the content of the wrong item, giving an alarm on site in the forms of acousto-optic, triggering the stop of the production line and the like, and finally printing the result through a printer on the production line.
As preferable: the vehicle reworking disposal module can automatically trigger the plate link chain control system to find out a vehicle with a problem in the vehicle detection result reporting device, stop the line of the whole production line, and after the vehicle is processed and confirmed by authorized personnel, the plate link chain can be started by clicking a confirmation button on a display screen of the production line, and the screen is refreshed to enter a detection state.
The method for applying the passenger car exterior trim error-proofing detection device based on machine vision comprises the following steps:
1. automatic visual detection;
2. standard judgment and maintenance;
3. reporting a vehicle detection result;
4. and (5) reworking and disposing of the vehicle.
As preferable: in the step 1, the automatic vision detection automatically reads the current vehicle VIN by identifying the vehicle mark through a sensor installed in the automatic vision detection device, and according to the VIN, the corresponding information such as the vehicle material number and the vehicle type is called from the production system, and the corresponding detection program is called at the same time, and the appearance and the parts of the whole vehicle are photographed through an industrial camera in the device, and the specific method is as follows:
1) The vehicle arrives at a station appointed position, a sensor identifies a vehicle mark to read the current vehicle VIN, and the material number, the vehicle type information and the like of the vehicle are obtained from a production system;
2) The vehicle reaches the station appointed position, the industrial camera is triggered to photograph the appearance parts of the whole vehicle, each picture is identified through an image identification algorithm chip arranged in the device, the difference between the photographed image and a standard image in a database is compared, and the system automatically judges whether the vehicle has a problem or not.
As preferable: the device for standard judgment and maintenance in the step 2 judges the image analyzed by the visual detection device through the built-in recognition algorithm chip of the detection device when receiving the detection result data sent by the automatic visual detection device, thereby realizing the error prevention inspection of the whole vehicle material, and simultaneously, the system supports a rapid change project configuration library, and the specific method is as follows:
1) Acquiring configuration information of the vehicle type detection part in a database according to the material number information of the whole vehicle sent by the visual detection device, and comparing an analysis result with a standard in a configuration library through a built-in recognition algorithm chip;
2) The configuration library standard can be quickly established by detecting the new material number of the whole vehicle, so that the material number of the whole vehicle of a new vehicle type can be conveniently and quickly compared and detected.
As preferable: the device for reporting the vehicle detection result in the step 3 automatically prints the judgment conclusion bill after receiving the judgment result obtained by standard judgment and maintenance, and the device comprises the following two cases:
1) The comparison result is displayed on a production line display screen, if the detection is qualified, the display judgment result is green, the vehicle normally passes through the detection station, the detection result is uploaded to a production system, the printing content is VIN, the whole vehicle material number and the vehicle type, and the detection overall evaluation result is OK;
2) If the detection is not qualified, displaying the judging result as red, prompting the material number and the vehicle type of the wrong item content, prompting the detecting result as NOK, alarming on site in the forms of acousto-optic, triggering production line stop and the like, waiting for the manual confirmation of the related authority, and uploading the vehicle detecting result again after the reworking is qualified.
As preferable: the method for reworking treatment of the vehicle in the step 4 is as follows:
1) After the vehicle with problems is confirmed by field reworking, the mobile handheld terminal is used for shooting and identifying the VIN of the whole vehicle at the station and is communicated with a production system, so that the material number, the vehicle type and the error item of the whole vehicle are read;
2) According to the list prompt of the error item, photographing the whole vehicle position corresponding to the image in the list, and uploading the reworked photo;
after all reworking items are photographed, the system communicates with a production system, the whole vehicle evaluation is changed from NOK to OK, and a qualified evaluation report of the maintained reworking is uploaded to the production system to cover original detection result data, so that a data closed loop is formed, and traceability of the information of the warehouse-in vehicles is realized.
The beneficial effects of the invention are as follows:
according to the invention, through the cooperation of the visual detection equipment, the standard judgment and maintenance equipment, the vehicle result report and the vehicle reworking treatment, the error-proofing detection on the exterior vision of the whole vehicle can be automatically realized, and the results are integrated and displayed; identifying the detection items and generating a related configuration library; when the vehicle which does not pass through the error-proofing detection is reworked, only the specific part is required to be confirmed, so that the problems of large manual detection workload, non-uniform inspection standard, inaccurate error material information and high reworking and reinspection time cost in the current industrial vehicle error-proofing detection process are well solved.
Drawings
FIG. 1 is a schematic overall flow chart of the present invention.
Detailed Description
The present invention will be further described with reference to the drawings and examples below in order to more clearly understand the objects, technical solutions and advantages of the present invention to those skilled in the art.
In the description of the present invention, it should be understood that the terms "upper," "lower," "left," "right," "inner," "outer," "transverse," "vertical," and the like indicate or are based on the orientation or positional relationship shown in the drawings, and are merely for convenience in describing the present invention, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, and thus should not be construed as limiting the invention.
The invention will be described in detail below with reference to the attached drawings: as shown in fig. 1, the passenger car exterior trim mistake-proofing detection device based on machine vision comprises an automatic vision detection device, a standard judging and maintaining device, a vehicle detection result reporting device and a vehicle reworking treatment device, wherein the automatic vision detection device, the standard judging and maintaining device, the vehicle detection result reporting device and the vehicle reworking treatment device are sequentially arranged and connected on a production line, a sensor and an industrial camera are installed on the automatic vision detection device, an identification algorithm chip is arranged in the standard judging and maintaining device, a display lamp and an alarm are installed on the vehicle detection result reporting device, and the vehicle reworking treatment module is further connected with a plate link chain control system.
The automatic vision detection device can recognize the vehicle mark through the installed sensor to automatically read the current vehicle VIN, and according to the VIN, the corresponding vehicle material number and vehicle type information are called from the production system, the corresponding detection program is called at the same time, the appearance and parts of the whole vehicle are photographed through the industrial camera, finally, the difference between the photographed image and the image in the database can be compared through various vision detection methods on the chip in the automatic vision detection device, and the system can automatically judge whether the vehicle has a problem.
As preferable: the standard judging and maintaining device is characterized in that an image analyzed by the visual detection module is identified through an identification algorithm chip arranged in the detection device, the identification algorithm can identify the approximate color, and if the system detects that the material is a new whole vehicle material number, a detection standard configuration library can be newly built in the system.
The vehicle detection result reporting device judges the result through the detection standard after the automatic visual detection device finishes detecting all the error-proof projects, the comparison result is displayed on a display screen, if the comparison result is qualified, the judgment result is green, the vehicle normally passes through the detection station, and the detection result is uploaded to the production system; if the detection is not qualified, displaying the judging result as red, prompting the content of the wrong item, giving an alarm on site in the forms of acousto-optic, triggering the stop of the production line and the like, and finally printing the result through a printer on the production line.
The vehicle reworking disposal module can automatically trigger the plate link chain control system to find out a vehicle with a problem in the vehicle detection result reporting device, stop the line of the whole production line, and after the vehicle is processed and confirmed by authorized personnel, the plate link chain can be started by clicking a confirmation button on a display screen of the production line, and the screen is refreshed to enter a detection state.
The method for applying the passenger car exterior trim error-proofing detection device based on machine vision comprises the following steps:
1. automatic visual detection;
2. standard judgment and maintenance;
3. reporting a vehicle detection result;
4. and (5) reworking and disposing of the vehicle.
In the step 1, the automatic vision detection automatically reads the current vehicle VIN by identifying the vehicle mark through a sensor installed in the automatic vision detection device, and according to the VIN, the corresponding information such as the vehicle material number and the vehicle type is called from the production system, and the corresponding detection program is called at the same time, and the appearance and the parts of the whole vehicle are photographed through an industrial camera in the device, and the specific method is as follows:
1) The vehicle arrives at a station appointed position, a sensor identifies a vehicle mark to read the current vehicle VIN, and the material number, the vehicle type information and the like of the vehicle are obtained from a production system;
2) The vehicle reaches the station appointed position, the industrial camera is triggered to photograph the appearance parts of the whole vehicle, each picture is identified through an image identification algorithm chip arranged in the device, the difference between the photographed image and a standard image in a database is compared, and the system automatically judges whether the vehicle has a problem or not.
The device for standard judgment and maintenance in the step 2 judges the image analyzed by the visual detection device through the built-in recognition algorithm chip of the detection device when receiving the detection result data sent by the automatic visual detection device, thereby realizing the error prevention inspection of the whole vehicle material, and simultaneously, the system supports a rapid change project configuration library, and the specific method is as follows:
1) Acquiring configuration information of the vehicle type detection part in a database according to the material number information of the whole vehicle sent by the visual detection device, and comparing an analysis result with a standard in a configuration library through a built-in recognition algorithm chip;
2) The configuration library standard can be quickly established by detecting the new material number of the whole vehicle, so that the material number of the whole vehicle of a new vehicle type can be conveniently and quickly compared and detected.
The device for reporting the vehicle detection result in the step 3 automatically prints the judgment conclusion bill after receiving the judgment result obtained by standard judgment and maintenance, and the device comprises the following two cases:
1) The comparison result is displayed on a production line display screen, if the detection is qualified, the display judgment result is green, the vehicle normally passes through the detection station, the detection result is uploaded to a production system, the printing content is VIN, the whole vehicle material number and the vehicle type, and the detection overall evaluation result is OK;
2) If the detection is not qualified, displaying the judging result as red, prompting the material number and the vehicle type of the wrong item content, prompting the detecting result as NOK, alarming on site in the forms of acousto-optic, triggering production line stop and the like, waiting for the manual confirmation of the related authority, and uploading the vehicle detecting result again after the reworking is qualified.
The method for reworking treatment of the vehicle in the step 4 is as follows:
1) After the vehicle with problems is confirmed by field reworking, the mobile handheld terminal is used for shooting and identifying the VIN of the whole vehicle at the station and is communicated with a production system, so that the material number, the vehicle type and the error item of the whole vehicle are read;
2) According to the list prompt of the error item, photographing the whole vehicle position corresponding to the image in the list, and uploading the reworked photo;
after all reworking items are photographed, the system communicates with a production system, the whole vehicle evaluation is changed from NOK to OK, and a qualified evaluation report of the maintained reworking is uploaded to the production system to cover original detection result data, so that a data closed loop is formed, and traceability of the information of the warehouse-in vehicles is realized.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
After receiving the report information of the vehicle detection result, the invention detects the vehicles with NOK in the whole vehicle error prevention way, and needs to open an adjusting line to carry out the reworking treatment of the vehicles; the reworking vehicle only needs to rework and confirm a specific part, and online detection is not needed any more:
1. after the vehicle with problems is confirmed by field reworking, the mobile handheld terminal is used for shooting and identifying the VIN of the whole vehicle at the station and is communicated with a production system, so that the material number, the vehicle type and the error item of the whole vehicle are read;
2. according to the list prompt of the error item, photographing the whole vehicle position corresponding to the image in the list, and uploading the reworked photo;
3. after all reworking items are photographed, the system communicates with a production system, the whole vehicle evaluation is changed from NOK to OK, and a qualified evaluation report of the maintained reworking is uploaded to the production system to cover original detection result data, so that a data closed loop is formed, and traceability of the information of the warehouse-in vehicles is realized.
The detection vehicle searches the material number of the whole vehicle by scanning VIN, so as to inquire the material configuration library, and if the vehicle configuration library can be obtained, the detection configuration library is the material number detection configuration library of the whole vehicle of the current vehicle type.
If the system determines that the new whole vehicle material number is configured, the detection items are required to be identified, and if the detection items are known, the new whole vehicle material number is bound by the recombination configuration library, so that the configuration library of the new material is generated.
If the detection item is unknown, firstly judging that the detection item is of a new type, and establishing a new model to enter a configuration library; and if no new addition occurs, modifying according to the existing model to generate a configuration library.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention.

Claims (10)

1. The utility model provides a passenger car exterior trim mistake proofing detection device based on machine vision, it is including setting up automatic vision detection device, standard judgement and the maintenance device, vehicle testing result report device, vehicle reworking processing apparatus who arranges in proper order on the production line and connect, its characterized in that: the automatic vision detection device is provided with a sensor and an industrial camera, the standard judging and maintaining device is internally provided with an identification algorithm chip, the vehicle detection result reporting device is provided with a display lamp and an alarm, and the vehicle reworking treatment module is further connected with the plate link chain control system.
2. The machine vision-based passenger car exterior trim error-proofing detection device according to claim 1, wherein: the automatic vision detection device can recognize the vehicle mark through the installed sensor to automatically read the current vehicle VIN, and according to the VIN, the corresponding vehicle material number and vehicle type information are called from the production system, the corresponding detection program is called at the same time, the appearance and parts of the whole vehicle are photographed through the industrial camera, finally, the difference between the photographed image and the image in the database can be compared through various vision detection methods on the chip in the automatic vision detection device, and the system can automatically judge whether the vehicle has a problem.
3. The machine vision-based passenger car exterior trim error-proofing detection device according to claim 1, wherein: the standard judging and maintaining device is characterized in that an image analyzed by the visual detection module is identified through an identification algorithm chip arranged in the detection device, the identification algorithm can identify the approximate color, and if the system detects that the material is a new whole vehicle material number, a detection standard configuration library can be newly built in the system.
4. The machine vision-based passenger car exterior trim error-proofing detection device according to claim 1, wherein: the vehicle detection result reporting device judges the result through the detection standard after the automatic visual detection device finishes detecting all the error-proof projects, the comparison result is displayed on a display screen, if the comparison result is qualified, the judgment result is green, the vehicle normally passes through the detection station, and the detection result is uploaded to the production system; if the detection is not qualified, displaying the judging result as red, prompting the content of the wrong item, giving an alarm on site in the forms of acousto-optic, triggering the stop of the production line and the like, and finally printing the result through a printer on the production line.
5. The machine vision-based passenger car exterior trim error-proofing detection device according to claim 1, wherein: the vehicle reworking disposal module can automatically trigger the plate link chain control system to find out a vehicle with a problem in the vehicle detection result reporting device, stop the line of the whole production line, and after the vehicle is processed and confirmed by authorized personnel, the plate link chain can be started by clicking a confirmation button on a display screen of the production line, and the screen is refreshed to enter a detection state.
6. A method of a machine vision based passenger car exterior trim error proofing detection arrangement according to any one of claims 1-5, characterized by: the method comprises the following steps:
automatic visual detection;
standard judgment and maintenance;
reporting a vehicle detection result;
and (5) reworking and disposing of the vehicle.
7. The method according to claim 6, wherein: in the step 1, the automatic vision detection automatically reads the current vehicle VIN by identifying the vehicle mark through a sensor installed in the automatic vision detection device, and according to the VIN, the corresponding information such as the vehicle material number and the vehicle type is called from the production system, and the corresponding detection program is called at the same time, and the appearance and the parts of the whole vehicle are photographed through an industrial camera in the device, and the specific method is as follows:
1) The vehicle arrives at a station appointed position, a sensor identifies a vehicle mark to read the current vehicle VIN, and the material number, the vehicle type information and the like of the vehicle are obtained from a production system;
2) The vehicle reaches the station appointed position, the industrial camera is triggered to photograph the appearance parts of the whole vehicle, each picture is identified through an image identification algorithm chip arranged in the device, the difference between the photographed image and a standard image in a database is compared, and the system automatically judges whether the vehicle has a problem or not.
8. The method according to claim 6, wherein: the device for standard judgment and maintenance in the step 2 judges the image analyzed by the visual detection device through the built-in recognition algorithm chip of the detection device when receiving the detection result data sent by the automatic visual detection device, thereby realizing the error prevention inspection of the whole vehicle material, and simultaneously, the system supports a rapid change project configuration library, and the specific method is as follows:
1) Acquiring configuration information of the vehicle type detection part in a database according to the material number information of the whole vehicle sent by the visual detection device, and comparing an analysis result with a standard in a configuration library through a built-in recognition algorithm chip;
2) The configuration library standard can be quickly established by detecting the new material number of the whole vehicle, so that the material number of the whole vehicle of a new vehicle type can be conveniently and quickly compared and detected.
9. The method according to claim 6, wherein: the device for reporting the vehicle detection result in the step 3 automatically prints the judgment conclusion bill after receiving the judgment result obtained by standard judgment and maintenance, and the device comprises the following two cases:
1) The comparison result is displayed on a production line display screen, if the detection is qualified, the display judgment result is green, the vehicle normally passes through the detection station, the detection result is uploaded to a production system, the printing content is VIN, the whole vehicle material number and the vehicle type, and the detection overall evaluation result is OK;
2) If the detection is not qualified, displaying the judging result as red, prompting the material number and the vehicle type of the wrong item content, prompting the detecting result as NOK, alarming on site in the forms of acousto-optic, triggering production line stop and the like, waiting for the manual confirmation of the related authority, and uploading the vehicle detecting result again after the reworking is qualified.
10. The method according to claim 6, wherein: the method for reworking treatment of the vehicle in the step 4 is as follows:
1) After the vehicle with problems is confirmed by field reworking, the mobile handheld terminal is used for shooting and identifying the VIN of the whole vehicle at the station and is communicated with a production system, so that the material number, the vehicle type and the error item of the whole vehicle are read;
2) According to the list prompt of the error item, photographing the whole vehicle position corresponding to the image in the list, and uploading the reworked photo;
after all reworking items are photographed, the system communicates with a production system, the whole vehicle evaluation is changed from NOK to OK, and a qualified evaluation report of the maintained reworking is uploaded to the production system to cover original detection result data, so that a data closed loop is formed, and traceability of the information of the warehouse-in vehicles is realized.
CN202310228203.5A 2023-03-10 2023-03-10 Passenger vehicle exterior trim error-proofing detection device and method based on machine vision Pending CN116342937A (en)

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Application Number Priority Date Filing Date Title
CN202310228203.5A CN116342937A (en) 2023-03-10 2023-03-10 Passenger vehicle exterior trim error-proofing detection device and method based on machine vision

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Publication Number Publication Date
CN116342937A true CN116342937A (en) 2023-06-27

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