KR20190063542A - Automatic Vision Inspection System for Vehicle Electrical Equipment and its Method - Google Patents

Abstract

The present invention relates to an automatic visual inspection apparatus for vehicle electronic units and a method thereof. According to the present invention, the method of the automatic visual inspection apparatus for the vehicle electronic units comprises: (a) a step of driving the visual inspection apparatus to activate screen information and to display a modeling file on a product for visual inspection in the screen information; (b) a step of settling the product on a jig unit to enter a basic size of the product into a visual inspection unit and to set an area for the product for visual inspection; (c) a step of transferring an X-axis transfer unit, a Y-axis transfer unit, and a Z-axis transfer unit to an initial position to read an image photographed by a camera and to control a focus of the camera; (d) a step of generating setting data including condition values for the positions of the camera and the transfer units, brightness of a lighting, size of the image photographed by the camera, color distribution, angle, photographing speed of the camera, and transferring speed of the transfer units for an automatic vision inspection of the product, to register the generated setting data on the visual inspection unit; (e) a step of conducting an inspection on the setting data to identify whether there is an error in the condition values or not; and (f) a step of, after the step (e), when there is no error in the setting data, automatically conducting a visual inspection of the product based on the setting data. The present invention aims to provide the automatic vision inspection apparatus for vehicle electronic units and the method thereof, which are able to generate pre-setting data and to allow the automatic visual inspection to be conducted based on the generated setting data.

Description

TECHNICAL FIELD [0001] The present invention relates to an automatic vision inspection system for vehicle electrical equipment,

TECHNICAL FIELD The present invention relates to a vision automatic inspection apparatus for a vehicle electric component and a method thereof. More particularly, the present invention relates to a method and apparatus for generating preset data on the position, brightness, illumination state, image, and vision inspection speed of a camera before execution of a vision inspection and automatically performing vision inspection based on the generated setting data And an automatic vision inspection apparatus and method thereof.

There are various electric devices with various electric devices built in the automobile. Among them, there are various buttons such as a touch panel, a radio button, an air conditioner button, and the like. Particularly, in the trend of more diversified electronic control devices in vehicles, various electronic control buttons are provided in the handle, dashboard, and door trim. It is expanding.

Conventionally, in order to inspect the operation failure of these buttons, the inspector opened the door of the vehicle, and while operating the dashboard and the door trim itself, the operator manually operated the respective buttons while confirming whether the buttons were operated.

However, if such a manual inspection is carried out, the inspection item may be omitted, and the inspection is not uniformly performed according to the operation strength of the operator. In this case, the electrical component button defect often occurs. Also, And it is difficult to input data and manage data on the inspection result, and it has been difficult to automatically update the data.

Thus, in Korean Patent No. 10-1703588, a vision camera of an inspection unit secures a front view to be inspected, an ultrasonic wave irradiator effectively detects an obstacle ahead, and illumination can effectively illuminate a forward view, Button Operation Finger and Touch Screen Operation Vehicle electrical equipment inspection unit and inspection method which can easily operate switch or touch screen by moving finger and can control operation force through load cell have been posted.

However, the above-described conventional technique is merely a control of a vision camera. In order to visually inspect electrical components of a vehicle formed in various shapes, it is necessary to manually operate the camera and lighting in accordance with the type of the electrical component Therefore, there is a problem in that the time required for the vision inspection increases, and even if the vision inspection of the vehicle equipments of the same item is performed, the reliability of the vision inspection result is lowered because the camera and the illumination must be operated again.

Korean Patent No. 10-1703588

In order to solve such problems, the present invention has been developed in view of the above-mentioned background art, and it is an object of the present invention to provide a method and apparatus for generating preset data on the position, brightness, illumination state, And to provide a vision automatic inspection apparatus and a method thereof for a vehicle electrical product that automatically performs vision inspection based on setting data.

In addition, according to the present invention, since the dimensional information on the size of the vehicle electrical equipments is input to the same item, the vision inspection of the vehicle electrical equipments can be continuously and automatically inspected without any additional operation, And more particularly, to a vision automatic inspection apparatus and a method thereof for a vehicle electrical product capable of more precise vision inspection.

It should be understood, however, that the scope of the present invention is not limited thereto, but includes any object or effect which can be understood from the solution or the embodiment of the present invention without explicitly mentioning it.

According to an aspect of the present invention, there is provided an apparatus and method for controlling an input device, including: an input device for inputting condition values of setting data; and an opening / closing cover for preventing exposure of the input device; A display unit for displaying the condition value and modeling file information of a product to be visually inspected and providing screen information on which vision inspection result data is displayed; An output unit for outputting inspection result data displayed through the display unit; A vision inspection unit for performing a test inspection of the setting data to confirm whether or not an error value exists on the setting data, and then to perform an automatic vision inspection for the product; And a control unit that receives the condition value input from the operation checking unit, generates and stores setting data including condition values, determines whether or not the setting data is erroneous, and controls driving of the vision checking unit according to the determination result And a control unit.

According to an embodiment of the present invention, the vision inspection unit may include: a jig for seating and fixing a product to be visually inspected; A Y-axis transfer unit for moving the jig in the Y-axis direction under the control of the inspection control unit; A Z-axis transferring unit for transferring the camera in the Z-axis direction so as to adjust focus of the camera; An X-axis transfer unit for moving the camera in the X-axis direction to position the camera in a region of the product to be vision-inspected; A camera which performs image shooting for each area of the product and transmits the photographed image information to the inspection control unit; And an illumination unit for adjusting the light intensity according to the daytime or nighttime according to the control of the inspection control unit and emitting a predetermined light to the product side.

According to an embodiment of the present invention, there is provided a method of operating a vision inspection system, comprising the steps of: (a) activating a vision inspection apparatus to activate screen information and displaying a modeling file for a product to be visually inspected on the screen information; (b) placing the product on a jig, inputting a basic size of the product to the vision inspection unit, and setting an area for the product to be vision-inspected; (c) transferring the X-axis, Y-axis, and Z-axis transfer parts to an initial position, reading the image taken by the camera and adjusting the focus of the camera; (d) determining, for the automatic vision inspection of the product, the position of the camera and the conveying units, the brightness of the illumination, the size of the image photographed by the camera, the color distribution, the angle, Generating setting data including a condition value and registering the setting data in the vision checking unit; (e) performing a test test on the setting data to determine whether there is an error in the condition value; (f) automatically performing the vision inspection of the product based on the setting data when there is no error in the setting data after the step (e).

According to the embodiment of the present invention, when the dimension information on the size of the vehicle electrical component is input to the same item, the vision inspection of the vehicle electrical component can be continuously and automatically inspected without any additional operation, Can be greatly shortened.

Further, according to the embodiment of the present invention, vision inspection can be performed on the same item under the same conditions, thereby improving the reliability of the inspection result data for the vision inspection.

In addition, the various and advantageous advantages and effects of the present invention are not limited to the above description, and can be more easily understood in the course of describing a specific embodiment of the present invention.

1 is a perspective view of a vision automatic inspection apparatus for a vehicle electrical component according to an embodiment of the present invention;
FIG. 2 is a front view showing a vision automatic inspection apparatus for a vehicle electrical product according to an embodiment of the present invention;
3 to 5 are views showing a vision inspection unit of a vision automatic inspection apparatus for a vehicle electrical component according to an embodiment of the present invention,
6 is a flowchart illustrating a vision automatic inspection process for a vehicle electrical component according to an embodiment of the present invention.
FIG. 7 is an exemplary view illustrating screen information displayed through a display unit of a vision automatic inspection apparatus for a vehicle electrical product according to an exemplary embodiment of the present invention. Referring to FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected to or connected to the other component, It should be understood that an element may be "connected," "coupled," or "connected."

FIG. 1 is a perspective view of a vision automatic inspection apparatus for a vehicle electrical component according to an embodiment of the present invention, FIG. 2 is a front view showing a vision automatic inspection apparatus for a vehicle electrical product according to an embodiment of the present invention, and FIGS. FIG. 6 is a flowchart illustrating a vision automatic inspection process for a vehicle electrical component according to an embodiment of the present invention. Referring to FIG.

As shown in the figure, the vision automatic inspection apparatus 100 includes a frame unit 110, an operation inspection unit 120, a display unit 130, an output unit 140, a power supply unit 150, an inspection control unit 160 And a vision check unit 200. [

The frame unit 110 constitutes the skeleton of the vision automatic inspection apparatus 100 and is constituted by the control frame 112 and the inspection frame 114 at the lower part thereof.

The control frame 112 constitutes the lower part of the frame part 110, and the inspection control part 160 is installed therein.

Here, the inspection control unit 160 receives various data such as the condition values input by the operation inspection unit 120, generates setting data based on the received data, and controls the operation of the vision inspection unit 200 And the like.

In addition, the inspection control unit 160 receives the condition values input through the operation inspection unit 120, determines whether there is an error in the received condition value, and generates and stores the setting data when there is no error value .

At this time, if there is an error among the condition values, an error condition is displayed through a display unit 130, which will be described later, so that a quick error correction can be performed.

In addition, the inspection control unit 160 can store the setting data in which the error value does not exist. When the vision inspection of the electrical equipments is performed, re-registration is performed in the inspection setting area through retrieving the stored setting data It is possible to eliminate the inconvenience of having to set and register the condition value again every time the vision inspection of the same product is performed.

The control frame 112 may further include a support frame 118 to which the jig 210 and the Y-axis transfer unit 230 are coupled.

The vibration of the jig 210 is reduced when the jig 210 is transferred through the Y-axis transferring part 230 to the support frame 118 so that the position of the product, which is seated on the jig 210, The anti-vibration panel 116 may be further configured to prevent the vibration.

The inspection frame 114 constitutes the upper part of the frame 110 and includes an output unit 140 for mounting the vision inspection unit 200 therein and printing information on the vision inspection completed to the outside, Lt; / RTI >

Since the jig 210 and the Y-axis transferring part 230 are coupled to the support frame 118, other components except for the jig 210 and the Y-axis transferring part 230 are inserted into the inspection frame 114, As shown in FIG.

In other words, the inspection frame 114 is spaced upward from the support frame 118 to be spaced apart from the support frame 118 and mounted on the upper part of the jig 210 coupled to the support frame 118, Inspection is performed.

In the inspection frame 114, an operation inspection unit 120 for inputting condition values for generating the setting data is installed in front of the inspection frame 114. An upper part of the operation inspection unit 120 is used for inputting a condition value, And a display unit 130 for displaying various kinds of screen information.

The operation inspection unit 120 is a component that is configured in the inspection frame 114 and inputs condition values of setting data for automatic vision inspection.

The operation inspection unit 120 may include an input device such as a conventional keyboard, but the present invention is not limited thereto. When the vision inspection is performed on the external surface, the operation cover 122, which prevents the input device from being exposed, Possibly combined.

The operation inspecting unit 120 transmits a movement signal to the inspection control unit 160 so that the Z axis transfer unit 210, the Y axis transfer unit 230, and the X axis transfer unit 240 of the vision inspection unit 200, The control unit 160 controls the operation member so that operation is not performed when the input of the condition value is made, and when the input of the condition value is not performed The operation is controlled so as to be possible only after completion, thereby preventing the condition value from being arbitrarily changed.

In this case, input condition values include a time required for vision inspection when performing the vision inspection, exposure time of the camera 250 in which the product is photographed during vision inspection, intensity of light emitted from the illumination unit 260, The size of the product image photographed through the camera 250, the color distribution diagram, the photographing angle of the camera 250, and the like.

The display unit 130 is located above the operation inspection unit 120 and displays condition value information input through the operation inspection unit 120 and modeling file information of a product to be subjected to the vision inspection. Provides screen information to be displayed.

As shown in FIG. 7, the screen information includes an image of a product (vehicle electrical appliance) photographed by the camera 250, and a vision of the camera 250 according to the image state A setting area 131, an inspection area 132 for setting a vision inspection area of a product to be visually inspected, a check condition setting area for setting a condition for vision inspection of the product and inputting a condition value for the set condition 133), a test setting area (134) for displaying detailed information of the setting data on the condition value, and a check result indicating that the setting data is in error, Area 135 as shown in FIG.

The output unit 140 outputs test result data displayed through the display unit 130 as a document or the like, and may be a general printer.

The power supply unit 150 supplies power to the vision automatic inspection apparatus 100 and is configured to check whether each component is powered on.

That is, the power supply unit 150 constitutes a separate power supply confirmation lamp and is configured to check the status of the power supply according to the color change of the power supply confirmation lamp.

The vision inspection unit 200 performs a test inspection of setting data under the control of the inspection control unit 160 to check whether an error value exists on the setting data, to be.

The vision inspection unit 200 includes a jig 210, a Z axis transfer unit 220, a Y axis transfer unit 230, an X axis transfer unit 240, a camera 250, and an illumination unit 260.

The jig 210 is a component that is coupled to the upper surface of the support frame 118 and seats and fixes a product (such as an electric component for a vehicle) to be visually inspected.

The lower end of the jig 210 is slidably coupled to the Y-axis transferring unit 230 to position the product under the camera 250 under the control of the inspection controller 160.

At this time, the Y-axis transferring unit 230 may be a conventional rail member for moving the jig 210 in the Y-axis direction, but is not limited thereto.

The Z-axis transferring unit 220 is a component that causes the camera 250 to be adjusted in focus while moving the camera 250 in the Z-axis direction, i.e., up and down.

The X-axis transferring unit 240 moves the camera 250 in the X-axis direction to position the camera 250 in a region of the product to be visually inspected.

The X-axis transferring unit 240 moves the camera 250 to the area of the product set by the setting data so that the vision inspection of the corresponding area is performed.

The Z-axis and X-axis transferring units 220 and 240 can move the camera 250 in the upward and downward directions (Z-axis direction) and the left and right directions (X-axis direction) But the present invention is not limited thereto, and the conveyance may be performed through a normal cylinder member, a belt member, or the like.

The Z axis, Y axis, and X axis conveyance units 220, 230, and 240 of the present invention perform the inspection test to detect the error value of the setting data under the control of the inspection control unit 160, The inspection is to be carried out after the transfer to the basic position corresponding to the reference position.

This is because it is possible to determine whether the camera 250 has reached the area of the product accurately by sensing the amount of positional change of the Z, Y, and X axis transfer units 220, 230, ) Is adjusted from the initial state to determine whether there is an error value for the condition value.

The camera 250 captures an image for vision inspection of the product. The image capturing is performed for each area of the product, and the captured image information is transmitted to the inspection control unit 160.

The set values of the focus may be set differently according to the different condition values of the respective focuses of the respective regions, and the camera 250 may set the Z-axis and X-axis transfer units 220 and 240 So that image capturing is performed.

The illumination unit 260 emits the light to the product by adjusting the intensity of the light according to the surrounding environment such as daytime or nighttime so as to allow the light emitted corresponding to the condition value input through the operation inspection unit 120 to be emitted do.

Hereinafter, a description will be given of a method of automatically performing a vision inspection of a product using the vision automatic inspection apparatus 100 of the present invention.

As shown in FIG. 6, the automatic vision inspection method of the present invention activates the vision automatic inspection apparatus 100 to display screen information for checking the inspection screen, and displays a modeling file for a product to be visually inspected (Step S310)

In step S310, the inspection control unit 160 transmits a screen information activation signal to the display unit 130 so that the screen information is activated. Then, a modeling file for a product to be subjected to automatic vision inspection And transmits the information to the display unit 130 so that information on the modeling file is displayed on the screen information.

At this time, the modeling file information is preferably displayed in the inspection area 132 of the screen information, but the present invention is not limited thereto.

Accordingly, when performing the vision automatic inspection, it is possible to compare the image of the product photographed by the camera 250 with the modeling file information corresponding to the product so as to determine whether the product is good or bad.

Thereafter, the present invention places the product on the jig 210, inputs the basic size of the product to the vision inspection unit 200, and sets an area for the product to be visually inspected. S320)

In operation S320, the product of the same item as the modeling file is placed and fixed in the jig 210, and information on the dimensions of the product is input through the operation inspection unit 120. [

At this time, the inspection control unit 160 extracts the dimension information of the product from the modeling file and automatically displays on the screen information, but the present invention is not limited thereto.

In step 320, an area for automatic vision inspection is set according to the size of the product, and area information on the set area is input to the screen information through the operation inspection part 120.

At this time, the inspection control unit 160 may calculate the axial movement distance value of the camera 250 by comparing the area information of the product with the dimension information of the product received from the operation inspection unit 120.

After the step 320, the X-axis, Y-axis, and Z-axis transfer units 220, 230, and 240 configured in the vision inspection unit 200 are transferred to the initial position, And adjusting the focus of the camera 250 while reading the image photographed by the camera 250. In operation S330,

In step S330, the inspection control unit 160 drives the X, Y, and Z-axis transfer units 220, 230, and 240 that are transferred to the initial position, and divides them by virtue of the area information set in step S320 The camera 250 is moved to one side of the product so that the image of the product is taken with respect to the corresponding area information and the resolution and the size of the taken image are read out, .

In step S330, it is preferable to adjust the focus of the camera 250 with respect to the face on which automatic vision inspection is to be performed, among the faces of products virtually divided by the area information.

Next, the position of the camera 250 and the transfer units 220, 230 and 240, the brightness of the illumination, the size of the image photographed by the camera 250, the color distribution, the angle, Generating setting data including a photographing speed of the camera 250 and a condition value for a feeding speed of the feeding units 220, 230 and 240 and storing and registering the setting data in the examination control unit 160 (S340)

That is, when data of various conditions for performing automatic vision inspection are input through the operation inspection unit 1200, the setting data is received by the inspection control unit 160 and displayed on the screen information, So that the vision inspection can be automatically performed even if no additional condition values are input when executing the vision inspection of a product corresponding to the same item.

Thereafter, a test is performed on the setting data to determine whether there is an error in the condition value (S350)

In step S350, the inspection control unit 160 performs a test test on the product based on the setting data to determine whether there is an error in the setting data including the condition values, Value exists, the step S340 is performed again to correct the error value.

At this time, the inspection control unit 160 may provide an event such as emphasis, color change or the like to the condition value in which the error occurs in the screen information, so that the correction can be performed more quickly.

If there is no error value as a result of the test inspection, the vision inspection of the product is automatically performed based on the setting data and the data of the inspection result is displayed on the inspection result processing area 135 of the screen information (S360)

It is to be understood that the terms "comprises", "comprising", or "having" as used in the foregoing description mean that the constituent element can be implanted unless specifically stated to the contrary, And all terms including technical or scientific terms are to be construed as further including other elements unless the context clearly dictates otherwise as generally understood by one of ordinary skill in the art to which this invention belongs. Have the same meaning.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or essential characteristics thereof. . Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

100: vision automatic inspection apparatus 110:
120: Operation Inspection Unit 130:
140: output unit 150: power supply unit
160: inspection control unit 200: vision inspection unit
210: jig 220: Z-axis conveying part
230: Y-axis feeder 240: X-axis feeder
250: camera 260: illuminator

Claims (3)

An input device for inputting condition values of setting data, and an opening / closing cover for preventing exposure of the input device;
A display unit for displaying the condition value and modeling file information of a product to be visually inspected and providing screen information on which vision inspection result data is displayed;
An output unit for outputting inspection result data displayed through the display unit;
A vision inspection unit for performing a test inspection of the setting data to confirm whether or not an error value exists on the setting data, and then to perform an automatic vision inspection for the product; And
And a control unit for controlling the operation of the vision inspection unit according to a result of the determination, wherein the control unit includes: ;
And an automatic vision inspection apparatus for a vehicle electrical component.
The method according to claim 1,
Wherein the vision-
A jig for seating and fixing a product to be visually inspected;
A Y-axis transfer unit for moving the jig in the Y-axis direction under the control of the inspection control unit;
A Z-axis transferring unit for transferring the camera in the Z-axis direction so as to adjust focus of the camera;
An X-axis transfer unit for moving the camera in the X-axis direction to position the camera in a region of the product to be vision-inspected;
A camera which performs image shooting for each area of the product and transmits the photographed image information to the inspection control unit; And
A lighting unit for adjusting the light intensity according to the daytime or nighttime according to the control of the inspection control unit and emitting a predetermined light to the product side;
And an automatic vision inspection apparatus for a vehicle electrical component.
(a) activating a vision inspection apparatus to activate screen information, and displaying a modeling file for a product to be visually inspected on the screen information;
(b) placing the product on a jig, inputting a basic size of the product to the vision inspection unit, and setting an area for the product to be vision-inspected;
(c) transferring the X-axis, Y-axis, and Z-axis transfer parts to an initial position, reading the image taken by the camera and adjusting the focus of the camera;
(d) determining, for the automatic vision inspection of the product, the position of the camera and the conveying units, the brightness of the illumination, the size of the image photographed by the camera, the color distribution, the angle, Generating setting data including a condition value and registering the setting data in the vision checking unit;
(e) performing a test test on the setting data to determine whether there is an error in the condition value;
(f) automatically executing the vision inspection of the product based on the setting data if there is no error in the setting data after the step (e);
Wherein the automatic vision inspection method comprises the steps of:

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