JP2023013522A - Method and system for displaying paint defects in automobile manufacturing line - Google Patents

Abstract

To provide a method and system for displaying paint defects in an automobile manufacturing line, which allow for recognizing whether a detected defect has been repaired.SOLUTION: A paint defect display method for an automobile manufacturing line is provided, the method involving detecting a paint defect D of an automobile body B together with a defect position, displaying the detected paint defect D at the defect position on an image showing a surface of the automobile body, and inputting measures taken for the detected paint defect. A paint defect for which measures are entered will disappear from or be displayed in a different manner on the image showing the surface of the automobile body.SELECTED DRAWING: Figure 4

Description

TECHNICAL FIELD The present invention relates to a paint defect display method and system for an automobile production line.

2. Description of the Related Art There is known a paint inspection apparatus that inspects uneven brightness of a metallic base painted on an automobile body using an optical unit including a laser light source and displays the inspection result on a monitor (Patent Document 1).

JP 2017-75848 A

However, in the above-described prior art, since the coating defect detected by the coating inspection device is only displayed on the monitor, there is a problem that when the coating defect is corrected, it cannot be confirmed whether or not the correction has been made. be.

SUMMARY OF THE INVENTION An object of the present invention is to provide a paint defect display method and system for an automobile manufacturing line that can recognize whether or not the detected paint defect has been corrected.

The present invention detects a paint defect of an automobile body together with the defect position, displays the detected paint defect at the defect position on an image showing the surface of the automobile body, and inputs measures for the detected paint defect. In the painting defect display method for a production line, the above problem is solved by stopping the display on the image showing the surface of the automobile body or by changing the form of display for the paint defect for which the measures have been input.

According to the present invention, the display on the image of a painting defect for which a countermeasure for the detected painting defect is input is stopped or the form of the display is changed, so that it is possible to recognize whether or not the detected painting defect has been corrected. be able to.

1 is a process diagram showing a coating completion inspection process to which the coating defect display method and system for an automobile manufacturing line according to the present invention are applied; FIG. The upper figure is a side view showing an example of arrangement of the defect detection apparatus (pattern irradiator and imager) according to the present invention, and the lower figure is a front view showing an example of movement of the light and dark pattern projected on the pattern irradiator. 1 is a block diagram showing an example of a coating defect detection method according to the present invention; FIG. 1 is a front view showing an example of a display device according to the present invention; FIG. 5 is a diagram for explaining a display function of the display device of FIG. 4; FIG. FIG. 4 is a plan view of a roof panel and a hood panel showing an example of auxiliary lines according to the present invention; 1 is a flow chart showing a work procedure in a coating completion inspection process to which a paint defect display method and system for an automobile production line according to the present invention are applied.

EMBODIMENT OF THE INVENTION Hereafter, the example of a form for implementing this invention is demonstrated, referring drawings. An automobile production line is mainly composed of a press molding line, a car body assembly line (also called a welding line), a painting line and a vehicle assembly line (also called an outfitting line). The line paint defect indication method and system can be applied to paint lines or vehicle assembly lines. In addition, the method and system for displaying coating defects in an automobile production line of the present invention can be used in a coating line, in addition to the coating completion inspection process after the completion of the top coating, the process of completing the electrodeposition coating, the process of completing the intermediate coating, etc. can be applied. For example, in a coating line using a 3-coat 3-bake coating method of electrodeposition coating, intermediate coating, and top coating, an electrodeposition process, a sealing process, an intermediate coating process, a water polishing process, a top coating process, and a coating completion inspection process. And prepare. The embodiment described below is an example in which the present invention is applied to the coating completion inspection process in which top coating is completed.

FIG. 1 is a process diagram showing a coating completion inspection process 1 to which a coating defect display method and system for an automobile manufacturing line are applied. In FIG. 1, an automobile body B is towed by a floor conveyor CV1 while being mounted on a painting trolley (not shown), and conveyed from left to right in FIG. 1 at a constant speed. Although illustration is omitted, a top coat drying oven is provided on the left side of FIG. 1, and a transfer device to the vehicle assembly line is provided on the right side of FIG.

A coating completion inspection process 1 shown in FIG. and a second defect repairing step 13 for repairing coating defects mainly outside the line. Incidentally, the coating defects referred to in the present embodiment include surface unevenness defects such as dirt, dust, threads, and repellency. The coating defect is indicated as coating defect D in FIG.

The defect detection step 11 is a step of detecting whether or not there is a coating defect on the outer plate of the automobile body B that has been conveyed. A defect detector 2 is provided for automatic detection. The defect detection apparatus 2 of this embodiment includes a pattern irradiator 21, an imager 22, a computer 23 having the functions of an image processor, a determiner, and a controller for specifying the position of a defect, and a robot R.

The pattern illuminator 21 is composed of a liquid crystal display, an organic EL display, or the like. While irradiating, the light-dark pattern is moved in the alignment direction of the bright part and the dark part by one period or more of the pair of the bright part and the dark part. The upper diagram in FIG. 2 is a side view showing an example of arrangement of the pattern illuminator 21 and the imaging device 22 with respect to the outer plate surface of the automobile body B, and the lower diagram in FIG. It is a front view showing.

The light-and-dark pattern of the present embodiment has a pair (one cycle) of a rectangular bright portion Pa extending in the vertical direction of the screen and a rectangular dark portion Pb extending in the vertical direction of the screen. It's a pattern. Such a bright and dark pattern is moved in the alignment direction of the bright portion Pa and the dark portion Pb, that is, in the horizontal direction in the lower drawing of FIG. The moving speed at this time is set according to the imaging speed of the imaging device 22 (the number of imaging frames per unit time, fps). In this embodiment, when inspecting for coating defects, at least the bright portion Pa and the dark portion Pb are moved with respect to the outer plate surface of one automobile body B by one period, preferably two or more periods.

The photographing device 22 is composed of a CCD camera or the like, and as shown in the upper diagram of FIG. It is assembled together with the pattern illuminator 21 as shown. Then, the photographing device 22 photographs a plurality of images of the light/dark pattern projected on the outer plate surface of the automobile body B by the pattern irradiator 21 in accordance with the movement of the light/dark pattern of the pattern irradiator 21 . The image of the light-dark pattern photographed by the photographing device 22 is output to a computer 23 having the functions of an image processor, a judgment device, and a controller for specifying the position of a defect.

The computer 23 includes an image processor that extracts the maximum brightness and minimum brightness of each position from a plurality of images captured by the camera 22 and generates a maximum brightness image and a minimum brightness image, and a maximum brightness image and a minimum brightness image. , and functions as a determiner that determines whether or not the brightness of the difference at each position is within a predetermined range, and as a controller that identifies the position of the defect. Specifically, image processing software, determination software, and position specifying software are installed, and predetermined processing is executed in accordance with the procedures of these software by computing units such as CPU, ROM, and RAM.

The robot R attaches the pattern irradiator 21 and the imager 22 to the tip of the hand, and transports the pattern irradiator 21 and the imager 22 so that they assume predetermined postures with respect to the outer plate surface of the automobile body B. has a teaching program installed. FIG. 1 shows a total of four robots R arranged two each on the left and right sides of an automobile body B. As shown in FIG. These four robots R detect paint defects present on five surfaces of the automobile body B (hood, roof, trunk lid (back door), left and right body sides).

FIG. 3 is a block diagram showing an example of a coating defect detection method according to the present invention. As shown in FIG. 3, the computer 23 in which the image processing program is installed acquires the photographed images IM1 captured by the photographing device 22, extracts the maximum brightness of each position from the plurality of photographed images IM1, and creates a maximum brightness image IM2. to generate Here, in order to extract the maximum brightness of each position from the captured image IM1, the brightness of each pixel (or a group of pixels that is a group of a predetermined number of pixels) of each captured image IM1 is detected, and the maximum brightness of each pixel is detected. are combined into one image. Also, as shown in FIG. 3, the computer 23 extracts the minimum brightness of each position from the plurality of fetched captured images IM1 to generate a minimum brightness image IM3. Here, in order to extract the minimum brightness of each position from the captured image IM1, the brightness of each pixel (or a group of pixels, which is a group of a predetermined number of pixels) of each captured image IM1 is detected, and the minimum brightness is calculated for each pixel. are combined into one image.

After the minimum brightness image IM3 is obtained by synthesizing the plurality of photographed images IM1 in this manner, difference processing is performed to obtain the brightness difference at each position (each pixel) with the maximum brightness image IM2 synthesized at the same time or before or after. to generate a differential image IM4. Then, each pixel (or a group of pixels, which is a group of a predetermined number of pixels) of the difference image IM4 is scanned vertically and horizontally, and the brightness of each pixel (corresponding to the position of the surface to be inspected) is measured. It is determined whether or not. By this scanning, if the measured brightness is less than the threshold value, it is determined that there is an uneven defect at that position. The principle of this determination is based on irregular reflection of unevenness. That is, the lightness of the image obtained by photographing the pattern of the bright portion Pa shows a gray value between white and black due to irregular reflection of the unevenness, and the lightness of the image obtained by photographing the pattern of the dark portion Pb is also between black and white. Since it represents a gray color value, its lightness difference becomes small as it approaches zero.

By scanning each pixel (each position) of the difference image IM4, when a position that is less than the threshold value is detected, the position is stored and the defect position is specified. The defect detection results are summarized as defect data for one vehicle body B at the stage when the defect detection of the entire vehicle body B is completed, and output to the production control device 3 shown in FIG. The position of the defect is determined by taking in the position of the outer panel surface of the automobile body B moved by the robot R from the controller of the robot R and comparing this position with the position of the defect determined by the computer 33. can be located.

The defect detection device 2 provided in the defect detection process 11 is not limited to the one described above, and other defect detection devices for automatically detecting coating defects can also be applied. Further, the present invention is not limited to a device that automatically detects coating defects, and may be a defect detection device that detects coating defects in cooperation with an operator. For example, the so-called inner plate surfaces of automobile body door openings, back door openings, engine compartments, etc. have complex shapes. detection device).

Returning to FIG. 1, the first defect correction process 12 is a process for correcting coating defects in the line, and therefore two workers W are assigned to the automobile body B for one tact time. The production control device 3 records the ordered vehicle together with its specifications, and when the construction of the vehicle starts on the vehicle production line, the production of the vehicle is managed as tracking data in all of the body assembly line, the painting line, and the vehicle assembly line. do. Then, the coating defect detected by the defect detection device 2 is associated with the tracking data along with the defect position. Therefore, when the automobile body B is brought into the first defect correction process 12, the paint defects detected in the automobile body B at that timing are displayed from the production control device 3 via the wireless router 31 together with the defect positions. The information is output to the device 4, and each worker W can recognize the coating defect of the automobile body B arriving at his/her work area.

The display device 4 of this embodiment is a so-called wearable small computer that can be attached to a part of the body such as an arm of the worker W, and includes a display 41 . In the first stage of the first defect correction process 12 shown in FIG. 1, two workers W correct paint defects present on the left and right sides of the automobile body B, respectively. Further, in the subsequent stage of the first defect repairing step 12, another two workers W repair other paint defects present on the left and right sides of the automobile body B, respectively. In the present embodiment, two steps of the first defect correction process 12 are provided, but one step or three or more steps may be provided as necessary. The first defect correction step 12 is a step in which the worker W corrects the coating defect detected by the defect detection device 2 within the production line. Alternatively, a coating defect that could not be detected by the defect detection device 2 may be visually detected.

The second defect correction process 13 is a process for mainly correcting coating defects outside the line, and is provided in the bypass line of the floor conveyor CV1 on the downstream side of the first defect correction process 12 . Then, in the first defect correction step 12, as a result of visually confirming the paint defect by the worker W, when the paint defect is determined to be "uncorrectable" and registered, the automobile body B is transferred to the floor conveyor CV1. to CV2, where paint defects are corrected over a relatively long period of time. Therefore, the floor conveyor CV2 is not a constant-speed transport, but a manual transport that transports the automobile body at a desired timing. The second defect repair process 13 may be a so-called out-of-line repair space without a floor conveyor.

FIG. 4 is a front view showing an example of the display device 4 according to the invention. The display device 4 of this embodiment has a display 41 on one main surface, and has a defect display function for displaying coating defects and a correction result input function for inputting correction results of the coating defects.

The defect display function provided by the display device 4 is to display the selected vehicle information, plot and display the defect of the selected vehicle on the three-dimensional vehicle set based on the defect database information, and further This is a function that displays information on the selected defect and enlarges the display on the subparts screen. The worker W wearing the display device 4 can identify the defect of the actual vehicle by visually recognizing the defect displayed on the display 41, and can perform subsequent work.

The correction result input function of the display device 4 is a function of registering the correction information and result of the selected defect in the database, correcting the defect level/type of the selected defect, and registering it in the database. If the worker W corrects the paint defects identified on the actual vehicle, determines that the correction is not necessary, or determines that the correction is impossible, the correction information and the result of the defect are registered in the database. can be done. Moreover, since the defect level and the defect type can be specified by visually checking the coating defect detected by the defect detection device 2, it is possible to correct these information.

In addition to the defect display function and the correction result input function, the display device 4 of the present embodiment has a function of registering and displaying auxiliary lines, a function of enlarging/reducing/moving the display, a function of switching the viewpoint of image display, A function of setting a correction range for each work area (or worker W), displaying or correcting only defects in the set correction range, setting a work area for each display device 4, and setting the work area Function to display based on, function to set a worker for each work area and associate defect correction information with the worker, function to switch defect selection by touch selection of defect switching button and defect symbol, image display Equipped with a function to register vehicle 3D data and ancillary information to be used. The configuration of the display device 4 including these will be described below.

As shown in FIG. 4, the display device 4 of this embodiment displays a main screen 42 on the left side and a sub-parts screen 43 on the right side. The selected vehicle information is displayed in the upper part 421 of the main screen 42 . This vehicle information is output from the production management device 3 . The vehicle to be displayed on the display device 4 can be selected by the worker W by operating the display device 4. During the line operation, the tracking data of the production control device 3 is used to track the work of the worker W. The vehicle information of the automobile body B that has arrived at the area is automatically selected and displayed.

A plan view, a front view, a rear view, a right side view, and a left side view of the automobile body B are displayed in the central portion 422 of the main screen 42, and auxiliary lines L and paint defects are superimposed on these images. D is displayed. Further, the defect level and defect type of the coating defect D are displayed in the lower part 423 of the main screen 42 . The defect level is, for example, a predetermined N-level evaluation, and the defect types include dust, underside, thread dust, repelling, and the like. The numbers in parentheses displayed to the right of the defect type indicate the number of the selected defect and the total number of defects registered in the work area of the worker W. For example, 1/3 means that the total number of defects registered in the work area of the worker W is 3, and the currently selected defect number is 1.

By touching any of the five views displayed in the central portion 422 of the main screen 42 , the sub-assembly part is displayed on the sub-parts screen 43 . FIG. 4 shows a case where the left side of the hood is touched on the main screen 42 .

The sub-assembly part selected on the main screen 42 is displayed in the center of the sub-parts screen 43 . The operator W pinches out the subparts screen 43 (moves two fingers so as to spread them) to enlarge the displayed subassembly part, and conversely pinches in the subparts screen 43 (2 The displayed sub-assembly part is displayed in a reduced size by moving two fingers together. In addition, when the operator W scrolls the subparts screen 43, the display screen is scrolled in the moving direction of the finger.

"Forward" and "Next" touch buttons are displayed in the left and right upper parts 431 of the sub-parts screen 43, and when "Forward" is touched, the vehicle information of the preceding vehicle is displayed. to the vehicle information of In addition, "previous" and "next" touch buttons are displayed in the left and right lower parts 432 of the sub-parts screen 43. When "previous" is touched, a plurality of paint defects D are highlighted (circled in red). etc.) moves to the previous coating defect D, and when "Next" is touched, the next coating defect D is displayed.

In the lower part 433 of the sub-parts screen 43, touch buttons for "corrected", "cannot be corrected" and "no correction required" are displayed. This is the correction result input function described above. This touch button touches "corrected" when the operator has completed the correction of the highlighted paint defect D. However, when the worker confirmed the paint defect D of the actual vehicle, and judged that it could not be corrected in the line, he touched "cannot be corrected" and was detected as the paint defect D, but the paint defect D of the actual vehicle was detected. When it is determined that no correction is required after confirming the above, touch "no correction required". If any of "corrected", "cannot be corrected" and "no need to be corrected" is entered for one painting defect D, the display of that painting defect D will be discontinued after that, or Instead, the form of display is changed so that the input can be identified. Changing the display form includes changing the color of the paint defect display and changing the form of the highlight mark. On the other hand, if none of "corrected", "cannot be corrected" and "no correction required" is entered for one painting defect D, the work area of the worker W in charge is passed. However, the display of the painting defect D is continued.

Eight arrow-shaped touch buttons are displayed on the outer peripheral portion 434 of the sub-parts screen 43, and when one of the arrow-shaped touch buttons is touched, a three-dimensional image viewed from the direction of the arrow is displayed. FIG. 5 is a diagram showing an example of a three-dimensional image displayed when each arrow-shaped touch button is touched as a balloon. This is because if a paint defect on the actual vehicle cannot be found or is difficult to find, changing the line of sight makes it easier to find.

The display device 4 of the present embodiment superimposes the auxiliary line L on the image of the five views displayed on the main screen 42 and the image of the sub-assembly part displayed on the sub-parts screen 43 by the display function of the auxiliary line. displayed. The auxiliary line L in this embodiment is preferably a straight line that passes through the characteristic points of the vehicle body B and extends in the longitudinal direction, the lateral direction, or the vertical direction of the vehicle body. In addition, as a feature point, the end point of the sub-assembly part, character line, hole, notch, center point of the arch shape, etc., can be used as a mark when checking any position, and it should be easy to distinguish from others. is desirable. FIG. 6 is a plan view of the roof panel and hood panel showing an example of auxiliary lines.

In the case of the roof panel shown in the left diagram of FIG. 6, the auxiliary line L1 extending in the longitudinal direction of the vehicle passing through the center of the vehicle in the lateral direction is a straight line passing through the characteristic point of the center of the vehicle body B in the lateral direction. Further, the auxiliary line L2 extending in the left-right direction of the vehicle is a straight line passing through a characteristic point in which both ends thereof coincide with the rear ends of the rear doors. Furthermore, the auxiliary line L3 extending in the left-right direction of the vehicle is a straight line passing through a characteristic point in which both ends thereof coincide with the upper end of the center pillar. When the roof panel is viewed, these auxiliary lines L1 to L3 serve as marks for recognizing relative positions.

Similarly, in the case of the hood panel of FIG. 6, the auxiliary line L4 extending in the longitudinal direction of the vehicle passing through the center of the vehicle in the lateral direction is a straight line passing through the characteristic point of the center of the vehicle body B in the lateral direction. Further, the auxiliary line L5 extending in the left-right direction of the vehicle is a straight line passing through a characteristic point that both ends thereof coincide with the center of the front wheel arch. Furthermore, the auxiliary line L6 extending in the left-right direction of the vehicle is a straight line that passes through a characteristic point that both ends of the auxiliary line L6 coincide with the notches of the front fender. When the hood panel is viewed, these auxiliary lines L4 to L6 serve as marks for recognizing relative positions.

Next, the action will be explained. FIG. 7 is a flow chart showing the work procedure in the coating completion inspection process of this embodiment. First, in step ST1, when the automobile body B arrives at the defect detection process 11 of the coating completion inspection process 1, the vehicle ID is recognized from the tracking data from the production control device 3. FIG. Then, in step ST2, the defect detection device 2 is used to automatically detect coating defects present on the outer plate surface of the automobile body B, that is, surface unevenness defects such as dirt, dust, threads, and repelling. Then, the computer 23 outputs the coating defect and the defect position to the production control device 3, and records them in association with the vehicle information.

When the automobile body B that has passed through the defect detection process 11 arrives at the front stage of the first defect correction process 12, in step ST4, it is arranged in the front and rear stages of the first defect correction process 12 from the production control device 3 via the wireless router 31. The paint defect D detected in the automobile body B is displayed together with the defect position on each of the display devices 4 worn by the four workers W thus identified. At this time, a preset auxiliary line L is also superimposed on the image of the automobile body B and displayed.

In step ST5, the four workers W placed at the front and rear stages of the first defect correction process 12 are assigned to each of them, and compare the paint defect D displayed on the display device 4 with the paint defect of the actual vehicle, Check the defect level and defect type, correct them if necessary, and register them. In addition, if the paint defect can be corrected within the line, touch the "Corrected" touch button when the correction is completed, and judge that the paint defect is a minor one that does not require correction or is an erroneous detection and does not need correction. Then, touch the "no correction required" touch button. If it is determined that the coating defect cannot be corrected within the line and needs to be corrected in the second defect correction step 13, the touch button "uncorrectable" is touched.

After the takt time of the worker W has passed, in step ST6, the paint defect detected in step ST2 and assigned to each worker W is indicated as "corrected", "cannot be corrected", or "no need to be corrected". Determine whether or not all correction results have been input. If no correction results have been entered for the assigned paint defect, it means that the worker W's work has not been completed. prohibited from transporting Thereby, overlooking of the work mistake of the worker W can be prevented.

On the other hand, in step ST6, all correction results such as "corrected", "cannot be corrected", or "no need to be corrected" are entered for the coating defects detected in step ST2 and assigned to each worker W. If so, go to step ST8. In step ST8, if the input result is "corrected" or "no correction required", go to step ST10, and if the input result is "cannot be corrected", go to step ST9.

At step ST9, the automobile body B for which the result of "impossible to be corrected" is input is conveyed to the second defect correction process 13, and after the paint defect that cannot be corrected within the line is corrected, "corrected" is entered as a result. do.

In step ST10, display on the display device 4 is stopped for paint defects for which "corrected" or "no need to be corrected" is entered. Then, in step ST, transportation to the vehicle assembly line is permitted.

As described above, according to the paint defect display method and system for the automobile manufacturing line of the present embodiment, the paint defect D of the automobile body B is detected along with the defect position, and the defect position is detected on the image showing the surface of the automobile body B. When the detected paint defect D is displayed and a countermeasure for the detected paint defect D is input, display on the image showing the surface of the automobile body B is stopped for the paint defect D for which the countermeasure is input. Therefore, the worker W can easily recognize whether or not the detected coating defect has been corrected.

Further, according to the paint defect display method and system for the automobile manufacturing line of the present embodiment, the paint defect D of the automobile body B is detected together with the defect position, and the paint defect detected at the defect position on the image showing the surface of the automobile body B is detected. When D is displayed and a measure for the detected paint defect is input, the form of display on the image showing the surface of the automobile body B is changed for the paint defect D for which the measure is input. Therefore, the worker W can easily recognize whether or not the detected coating defect has been corrected. In addition to this, since the display continues even after the action is input, it is possible for the same operator to take another action and for another operator to double-check.

Further, according to the paint defect display method and system for the automobile manufacturing line of the present embodiment, the paint defect D displayed on the image showing the surface of the automobile body B continues to be displayed until the above-mentioned measures are input. Therefore, the worker W can more easily recognize whether or not the detected coating defect has been corrected.

Further, according to the paint defect display method and system for an automobile manufacturing line of the present embodiment, any one of corrected, uncorrectable, or uncorrectable is selected as a measure, so the worker W can take measures against the detected paint defect. It is possible to recognize more easily whether or not it has been performed.

Further, according to the paint defect display method and system for the automobile manufacturing line of the present embodiment, an image showing the surface of the automobile body including the paint defect and the auxiliary lines is displayed on the display of the wearable display device capable of wireless communication. Therefore, it can be recognized without greatly changing the line of sight. Therefore, the worker W can more easily recognize whether or not the detected coating defect has been corrected.

1 … Coating completion inspection process (automobile manufacturing line)
DESCRIPTION OF SYMBOLS 11... Defect detection process 12... 1st defect correction process 13... 2nd defect correction process 2... Defect detection apparatus 21... Pattern irradiation device 22... Camera 23... Computer 3... Production control apparatus 31... Wireless router 4... Display device 41 Display 42 Main screen 421 Upper part 422 Central part 423 Lower part 43 Sub parts screen 431 Upper left and right parts 432 Lower left and right parts 433 Lower part 434 Peripheral part B Auto body CV1, CV2 Floor conveyor R Robot W ... Worker D ... Painting defects L, L1 to L6 ... Auxiliary lines

Claims (7)

Detect paint defects on the car body together with the defect position,
displaying the detected paint defect at the defect position on the image showing the surface of the automobile body;
In the paint defect display method for an automobile manufacturing line for inputting measures for the detected paint defect,
A paint defect display method for an automobile manufacturing line, wherein the paint defect for which the action is input is stopped from being displayed on the image showing the surface of the automobile body. Detect paint defects on the car body together with the defect position,
displaying the detected paint defect at the defect position on the image showing the surface of the automobile body;
In the paint defect display method for an automobile manufacturing line for inputting measures for the detected paint defect,
A paint defect display method for an automobile manufacturing line, wherein, for paint defects for which the measures have been input, a form of display on an image showing the surface of the automobile body is changed. 3. The method for displaying a coating defect for an automobile production line according to claim 1, wherein the display of the coating defect displayed on the image showing the surface of the automobile body is continued until the countermeasure is input. 4. The method for displaying a paint defect for an automobile production line according to claim 1, wherein any one of corrected, non-repairable, and unrepairable is selected as the measure. 5. The method for displaying paint defects on an automobile production line according to claim 1, wherein the image showing the surface of the automobile body containing the paint defects is displayed on a display of a wearable device capable of wireless communication. a defect detection device that detects a coating defect of an automobile body together with the defect position;
a display device for displaying the detected paint defect at the defect position on the image showing the surface of the automobile body;
A paint defect display system for an automobile manufacturing line, comprising an input device for inputting measures for the detected paint defect,
A paint defect display system for an automobile manufacturing line, wherein the display device stops displaying the paint defect for which the action is input on the image showing the surface of the automobile body. a defect detection device for detecting a paint defect on an automobile body together with the defect position;
a display device for displaying the detected paint defect at the defect position on the image showing the surface of the automobile body;
A paint defect display system for an automobile manufacturing line, comprising an input device for inputting measures for the detected paint defect,
A coating defect display system for an automobile manufacturing line, wherein the display device changes the form of display on an image showing the surface of the automobile body for the coating defect for which the measures have been input.

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