KR200489450Y1 - Portable UV Apparatus for Examining Painting Status of a Car - Google Patents

Abstract

A portable ultraviolet inspection apparatus for inspecting a paint condition of a vehicle is disclosed. The portable ultraviolet photographing apparatus of the present invention can generate an ultraviolet image photographed in an ultraviolet region of an image of a vehicle, and can be displayed to a user by connecting to a portable terminal equipped with a display unit. It is possible to judge that the painting of the corresponding area is different from the painting of the other area if the gradation value of the painted part of the vehicle is not the same as the gradation value of the vehicle in the ultraviolet image and the painting condition of the vehicle is examined, It is possible to deduce an accident of the vehicle.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a portable ultraviolet (UV)

The present invention relates to a portable ultraviolet ray photographing apparatus for inspecting a paint condition of a vehicle by being mounted on a portable terminal equipped with a display unit.

If you want to buy a used car, it is not a new car. In the event of a car accident, all or part of the damaged part of the vehicle is destroyed, and the last part of the damaged part is repainted. At this time, the paint to be newly painted is the same as that painted on the rest of the vehicle, so that the accident part is not displayed.

A vehicle with an accident history may have unpredictable problems compared to a vehicle that has been repaired but not accidents, and in fact, the possibility of the buyer of the used vehicle is felt psychologically burdened by such possibility alone. Therefore, the price of a used car with an accident history is relatively cheap compared to a used car.

Therefore, the accident of the used car is a very important consideration for the calculation of the used car price, so the seller of the used car needs to accurately notify this point. However, even if there was an accident, if the original owner of the used car or the seller of the used car hid the accident for various purposes, it is almost impossible for the general purchaser to check the accident history. It is because it is difficult to distinguish the accident part by the sight of the public.

Meanwhile, conventionally known ultraviolet cameras include high-quality CMOS image sensors applied to digital single lens reflex (DSLR) cameras, expensive special filters for filtering ultraviolet rays in the range of 315 to 380 nm, and ISO control functions And is quite bulky and generally not widely used for personal use or home use.

An object of the present invention is to provide a portable ultraviolet ray photographing apparatus for inspecting a painted state of a vehicle with an ultraviolet ray image by attaching the portable ultrasound photographing apparatus to a portable terminal equipped with a display unit.

In order to achieve the above object, the portable ultraviolet ray inspection apparatus of the present invention includes a portable terminal having a display unit and an ultraviolet ray photographing apparatus for generating a digital ultraviolet ray image of a vehicle as a subject, thereby generating a digital ultraviolet ray image for the vehicle, So that the coating state of the vehicle can be inspected.

The ultraviolet imaging apparatus includes a lens unit, an ultraviolet filter unit, an image sensor, an image processing unit, and a case to generate an ultraviolet image for the subject. The ultraviolet filter unit is provided on the front or rear of the lens unit, and when the ultraviolet ray is passed through the ultraviolet filter unit, the image sensor generates the image having passed through the lens unit and the ultraviolet filter unit as the digital ultraviolet image at a predetermined frame rate. The image processing unit provides the digital ultraviolet image generated by the image sensor to the portable terminal. The case is provided with a terminal block for electrically connecting the ultraviolet ray photographing apparatus to the portable terminal.

The portable terminal includes a display unit for displaying the digital ultraviolet image and an inspection unit. The inspection unit recognizes the vehicle area in the digital ultraviolet image and generates an image layer in which at least one vehicle detailed area divided again based on the edge of the recognized vehicle area and the recognized vehicle area is divided And then superimposed and displayed on the ultraviolet image.

The present invention is also applied to a portable ultraviolet radiographic apparatus separated from a portable terminal.

According to the present invention, the portable ultraviolet inspection apparatus can generate an image photographed by filtering only ultraviolet light among lights reflected from a vehicle, and display the image on the display means of the portable terminal of the user. If one part of the vehicle is newly painted, the tonal value of that part on the ultraviolet image is displayed differently from the other parts of the vehicle. Therefore, the user can judge that the part is newly painted by accident or the like.

In addition, the present invention can recognize a vehicle area of an ultraviolet image, divide the vehicle area into a plurality of areas based on the gray level value, and allow the user to easily grasp the divided areas using different colors or the like.

For example, by displaying a segment area on a separate vehicle template image, it is possible to easily grasp a part difficult to be distinguished by the user's eyes even if an ultraviolet image is used, thereby finely investigating the painted state of the vehicle or the accident state of the vehicle I can do it.

1 is a view showing a portable ultraviolet inspection apparatus of the present invention mounted on a portable terminal,
2 is a block diagram of a portable ultraviolet imaging apparatus according to an embodiment of the present invention;
3 is a block diagram of a portable terminal of the present invention,
4 is a view showing a state in which an image layer is superimposed on an ultraviolet image, and
5 is a view showing the external appearance of a portable ultraviolet imaging apparatus according to an embodiment of the present invention.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

1 and 2, the portable ultraviolet inspection apparatus 100 of the present invention generates a digital ultraviolet image (also simply referred to as an ultraviolet image) for a vehicle with ultraviolet light reflected from a vehicle A as a subject, So that the user can inspect the paint itself of the vehicle A or inspect whether or not a vehicle accident has occurred through investigation of the paint condition.

The ultraviolet ray inspection apparatus 100 of the present invention includes an ultraviolet ray photographing apparatus 110 and a portable terminal 130 on which the ultraviolet ray photographing apparatus 110 is mounted.

The ultraviolet ray photographing apparatus 110 may be enclosed in a portable terminal 130 having a display unit 131 and may provide an ultraviolet ray image to the portable terminal 130 to be displayed on the display unit 131. For example, the ultraviolet ray inspection apparatus 100 of the present invention displays a painted state on the display unit 131 of the portable terminal 130 in order to investigate whether a vehicle accident has occurred through examination of a paint itself of the vehicle A, As shown in FIG.

2, the ultraviolet ray photographing apparatus 110 includes an ultraviolet ray filter unit 210, a lens unit 231 and an image sensor unit 233 for generating an ultraviolet image, and the image sensor unit 233 And a controller 250 for processing the generated ultraviolet image, and has a case 270 that accommodates both of them.

It is preferable that the case 270 is configured to be able to be enclosed in the portable terminal 130, and the case 270 is preferably made as small as possible in consideration of the size of the portable terminal 130. An opening 271 through which external light is incident is formed on the front of the case 270 and a terminal 273 for connecting with the portable terminal 130 is formed on the other side.

The ultraviolet light filter unit 210, the lens unit 231 and the image sensor unit 233 are disposed on one optical path passing through the center of the opening 271 vertically, To generate a digital image for the ultraviolet region. At least one of the UV filter 210 and the lens 231 may be exposed to the outside of the opening 271.

The ultraviolet filter unit 210 is at least one optical filter that allows only the ultraviolet region of the light reflected or refracted by the vehicle A to pass therethrough. For example, since natural sunlight includes infrared rays and an ultraviolet ray region in addition to visually recognizable visible rays, ultraviolet rays are included in the light reflected from the vehicle A. The ultraviolet filter unit 210 allows only the ultraviolet light to pass through the image sensor unit 233 from the light reflected by the vehicle A and incident thereon.

2, the ultraviolet filter unit 210 may be disposed in front of the lens unit 231, or may be disposed between the lens unit 231 and the image sensor unit 233.

The filtering bandwidth or wavelength of the ultraviolet filter unit 210 is the most important factor determining the performance of the ultraviolet imaging apparatus 110 of the present invention and therefore the filtering band passes only the ultraviolet band of 200 to 400 nanometers Or the like.

Generally, the ultraviolet band is divided into ultraviolet rays A, B, and C, which are approximately tripled in the long wavelength order. Ultraviolet C is blocked by the ozone layer and does not reach the ground. The UVB (UVB) of 280 to 320 nanometers is also partly filtered out in the ozone layer, but on a clear day, much of it goes down to the ground. On the other hand, ultraviolet A (UVA) in the 320 to 400 nanometer range can easily pass through ozone and clouds and reach most of the ground.

On the other hand, the paint of the vehicle is formed of a plurality of paint layers. Depending on the nature of the paint used for the paint, ultraviolet light can penetrate the paint layer. One or two layers formed on the outermost side of the coating layer may be damaged by a long exposure to ultraviolet rays, and the coating layer may be deformed. As described above, the property of reflecting the ultraviolet ray may vary depending on the characteristics of the paint used, and ultraviolet absorption is not so large as to be considered unless the functional paint having the ultraviolet ray absorbing ability is particularly used. Therefore, even if a new car is painted and a new part, the reflection ability of ultraviolet rays changes depending on the degree of contamination due to dirt or dust deposited on the paint surface, the thickness of the paint thinned by the use of the vehicle, In the ultraviolet image, it is possible to distinguish an existing paint part from a later paint part.

The ultraviolet filter unit 210 may be configured to block one of the UVA and UVB bands or both the UVA and UVB bands. However, when the ultraviolet ray photographing apparatus 110 of the present invention is implemented at a low price to be used as an accessory of a personal portable terminal 130 such as a smart phone, it is necessary to have a precisely designed filtering band for discriminating between UVA and UVB It is inevitable to use a difficult, low-cost commercially available ultraviolet filter. Inexpensive commercial ultraviolet filters can have a wide bandwidth, including some visible light in addition to ultraviolet light. In this case, a plurality of filters having different bandwidths can be combined to design the ultraviolet filter unit 210 having a desired filtering bandwidth and a low cost.

The lens unit 231 images the light incident from the subject on the image sensor unit 233 and the image sensor unit 233 generates the incident light (or image) as a digital ultraviolet image. At this time, the ultraviolet band should be included in the processable bandwidth of the image sensor unit 233, and most of the image sensor unit 233 can process the ultraviolet region. Since the image generated by the image sensor unit 233 is generated in a state where all of the color regions of the visible light are removed, the image is a black and white image expressed by only the tone value.

The image generated by the image sensor unit 233 may be a single still image, but it is preferable to generate an image (moving image) of a predetermined frame rate to dynamically display the image of the vehicle A Do. The image sensor unit 233 provides the generated image to the controller 250.

Hereinafter, a process of generating an ultraviolet image through the ultraviolet filter unit 210, the lens unit 231, and the image sensor unit 233 will be briefly described. The ultraviolet ray photographing apparatus 110 of the present invention can be used in various areas requiring an ultraviolet ray image. Especially, the inspection apparatus 100 of the present invention is used for inspecting the painting state of the vehicle A. Since the paint state of the vehicle can be indirect evidence for estimating the presence or absence of an accident of the vehicle, the presence or absence of an accident of the vehicle can be inspected by confirming the painting state of the vehicle.

First, the ultraviolet ray portion in the sunlight irradiating the vehicle A will be reflected from the vehicle A. At this time, a portion of the window may allow some ultraviolet rays to pass through but reflect a considerable amount of ultraviolet rays. Since the tire portion is usually black, it absorbs not only visible light but also considerable ultraviolet light, so the amount of reflected ultraviolet light is very small.

Since the material forming the appearance of the vehicle is varied, the vehicle area does not have the same gradation in the ultraviolet image taken of the vehicle. The exterior of the vehicle painted with paint also reflects considerable UV radiation. However, as described above, if the coating time is different, the reflectance of the ultraviolet ray will be different from the viewpoint. Even with the exterior part of the same vehicle, the newly painted part is displayed differently on the ultraviolet image, resulting in unevenness.

 The light incident on the ultraviolet ray photographing apparatus 110 includes visible light rays and infrared rays as well as light reflected from the vehicle A, but only ultraviolet rays pass through the ultraviolet ray filter unit 210. The ultraviolet ray passing through the ultraviolet filter unit 210 is converted into a digital ultraviolet image by the image sensor unit 233 through the lens unit 231. 4 shows that the vehicle area x does not have the same gradation value in the ultraviolet image, and the specific part x1 included in the vehicle area x is displayed in a relatively bright gradation and is distinguished from the other part This state is not normal. The specific part (x1) shows that the ultraviolet ray reflection ability differs from that of the coating layer of the other part, as compared with the other part.

The image generated by the image sensor unit 233 is processed by the controller 250. The controller 250 includes a first communication interface 251, a memory 253 and an image processing unit 255 to store the ultraviolet image generated by the image sensor unit 233 and provide the ultraviolet image to the portable terminal 130 .

The first communication interface 251 is a communication interface for providing images or moving images with the portable terminal 130 and provides images according to the predetermined protocol. The memory 253 stores an image generated by the image sensor unit 233.

The image processing unit 255 controls the overall operation of the ultraviolet photographing apparatus 110 of the present invention.

First, the image processing unit 255 controls the image sensor unit 233 to generate an ultraviolet image according to a control command received from the portable terminal 130 through the first communication interface 251. The image processing unit 255 provides at least one ultraviolet image generated by the image sensor unit 233 to the portable terminal 130 through the first communication interface 251. Accordingly, the portable terminal 130 displays the ultraviolet image of the vehicle A through the display unit 131 to the user.

The case 270 protects the ultraviolet ray photographing apparatus 110 and includes a terminal 273 electrically connected to the controller 250 so that the ultraviolet photographing apparatus 110 can be mounted on the portable terminal 130. The terminal 273 of the ultraviolet ray photographing apparatus 110 may be directly connected to the terminal 331 of the portable terminal 130 or may be interconnected via a separate cable.

Mobile terminal

The portable terminal 130 includes a display unit 131 and is connected to the ultraviolet ray photographing apparatus 110 to display an ultraviolet ray image provided by the ultraviolet ray photographing apparatus 110 on the display unit 131 It may be a device equipped with other main functions (such as a telephone, web browsing, etc.) other than the function of the present invention. For example, a recent smart phone is a typical example of the portable terminal 130.

Referring to FIG. 3, the portable terminal 130 includes a second communication interface 301, a display unit 131, and a control unit 310. As described above, the portable terminal 130 may include a configuration for functions other than the present invention. However, such a configuration or function is not essential to the present invention and does not contribute to the description of the present invention. Therefore, And the description thereof is omitted.

The second communication interface 301 is connected to the first communication interface 251 and receives an image provided by the ultraviolet photographing apparatus 110 and provides the image to the control unit 310. The display unit 131 is disposed on the front surface of the portable terminal 130 and displays ultraviolet images provided by the ultraviolet ray photographing apparatus 110 to the user.

The control unit 310 includes an inspection unit 311. The control unit 310 may be configured to be specifically installed for the present invention, but it may be configured to perform the main function of the portable terminal 130 described above.

In the case where the controller 310 is installed to perform the main function of the portable terminal 130, the controller 310 includes a processor chip (hardware), which is basically hardware of the portable terminal, It may be a functional indication of a configuration implemented in an application that is software. Here, an application is software written in a programming language that can be interpreted by a computer and process a specified set of instructions.

The checking unit 311 may be a software or a collection of a plurality of software programs installed by the processor chip to implement the present invention as one of the applications. The user can download the application from a software distribution server (not shown) called 'App Store' and install the checking unit 311 on his / her portable terminal 130.

Specifically, the inspection unit 311 allows the image processing unit 255 of the ultraviolet photographing apparatus 110 to photograph an ultraviolet image according to the user's control, and (2) when the image processing unit 255 provides an ultraviolet image And displays it on the display unit 131.

The inspection unit 311 recognizes the vehicle area x using an image processing technique related to object recognition in the ultraviolet image provided by the image processing unit 255. [ When the ultraviolet image is displayed on the display unit 131, the checking unit 311 determines the edge of the recognized vehicle area x and the recognized vehicle area x as at least one vehicle detail area (x1) are distinguishably displayed.

FIG. 4 does not show the ultraviolet image itself, but shows a separate image layer superposed on the ultraviolet image. The image layer superimposed on the ultraviolet image is created by the inspection unit 311 and is represented by a line or a figure for displaying the edge of the recognized vehicle area x and the vehicle detailed area x1 in a distinguishable manner.

Referring to FIG. 4, an ultraviolet image (not shown) is displayed on the display unit 131, and the image layers are superimposed and displayed. The edge of the vehicle area x recognized by the inspection unit 311 is displayed again with a relatively thick line on the ultraviolet image. Also, several sub-areas x1, each of which is obtained by subdividing the vehicle area x into gray scale values, are displayed so as to be distinguishable from each other.

Connection between ultraviolet imaging device and mobile terminal

The ultraviolet ray photographing apparatus 110 photographs an ultraviolet ray image while being connected to the portable terminal 130. 1, the terminal 273 of the ultraviolet photographing apparatus 110 is connected to the terminal 331 of the portable terminal 130. The terminal 331 of the ultraviolet photographing apparatus 110 is connected to the terminal 331 of the portable terminal 130, They can be electrically and mechanically coupled at the same time by direct connection. Alternatively, the ultraviolet ray photographing apparatus 110 may be connected to the portable terminal 130 through an electrical connecting means separate from the mechanical mounting means in a state of being mounted through (2) a separate mechanical mounting means, (3) It may not be mounted but may have only electrical connection by a separate means.

For example, as shown in FIG. 1, the terminal 273 is directly coupled to the terminal 331 provided at the side end of the portable terminal 130, so that the ultraviolet photographing apparatus 110 can be connected to the vehicle A The portable terminal 130 is installed in a form in which it can take a picture.

The ultraviolet ray photographing apparatus 110 of the present invention does not have an internal power source and operates by directly receiving the direct current power from the portable terminal 130 through the terminal 273. [

Example: Ultraviolet filter unit

Preferably, the ultraviolet screening unit 210 is divided into a UVA zone and a UVB zone, since the ultraviolet screening unit has a substantial effect on only UVB, a substantial effect on only UVA, or a UVB effect, It is preferable that they can pass all the bands but can pass them separately separately.

In the embodiment of FIG. 2, the ultraviolet light filter unit 210 includes a first filter 211 passing only the UVA region and a second filter 213 passing only the UVB region.

The ultraviolet filter unit 210 preferably includes a filter transfer unit for transferring at least one selected from the first filter 211 and the second filter 213 to the front side (or rear side) of the lens unit 231. Only the first filter 211 is disposed in front of the lens unit 231 so that only the UVA ultraviolet rays are passed or only the UVB ultraviolet rays are passed through the second filter 213, And the second filter 213 may be disposed to pass both UVA and UVB ultraviolet rays.

5, the filter transfer unit includes a first slider 501 that horizontally feeds the first filter 211 by an external force and disposes it in front of (or behind) the lens unit 231, And a second slider 503 that horizontally feeds the second filter 213 by the second lens 213 and disposes the second filter 213 on the front side (or rear side) of the lens part 231. Each of the first slider 501 and the second slider 503 includes a transporting track disposed in a horizontal direction, a slit formed in a horizontal direction against the transporting track, a slit slit formed between the transporting track and the slit, 211 or the second filter 213 and has a protrusion formed on one side thereof. The protrusion is exposed to the outside while being inserted into the slit.

The user can push the first slider 501 and / or the second slider 503 along the slit to dispose the first filter 211 and / or the second filter 213 on the optical path.

In the example of FIG. 5, only the first filter 211 is mounted in front of the lens portion 231 by the first slider 501.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It will be understood that various modifications may be made by those skilled in the art without departing from the spirit and scope of the present invention.

110; Ultraviolet ray photographing apparatus 130:
131; The display unit
210: ultraviolet filter unit
211, 213: first filter and second filter
231: Lens part 233: Image sensor part
250: a controller 251; The first communication interface
253: memory 255:
270: Case 271:
273: Terminal 301: Second communication interface
310: control unit 311:
501: first slider 503: second slider

Claims (7)

A portable ultraviolet ray photographing apparatus which can be connected to a portable terminal having a display unit and which generates a digital ultraviolet ray image for inspecting a painting state of a vehicle as a subject,
A lens portion;
An ultraviolet filter unit provided at the front or rear of the lens unit to allow ultraviolet rays to pass therethrough;
An image sensor for generating an image having passed through the lens unit and the ultraviolet filter unit as the digital ultraviolet image at a predetermined frame rate;
An image processing unit for displaying the digital ultraviolet image generated by the image sensor on the display unit of the portable terminal by providing the digital ultraviolet image to the portable terminal;
A first communication interface, connected to a second communication interface of the portable terminal, for transmitting the digital ultraviolet image to the portable terminal under the control of the image processing unit; And
And a case having a terminal block for electrically connecting the ultraviolet ray photographing apparatus to the portable terminal, the digital ultraviolet ray image is generated for the subject,
The portable terminal includes an inspection unit that recognizes a vehicle area in the digital ultraviolet image. The inspection unit detects at least one vehicle detail area that divides the perimeter of the recognized vehicle area and the recognized vehicle area An image layer which is distinguishably displayed is generated and superimposed on the digital ultraviolet image for display.
delete The method according to claim 1,
The ultraviolet filter unit includes:
A first filter passing only the UVA region;
A second filter for passing only the UVB region; And
And a filter transferring part for transferring at least one selected from the first filter and the second filter to the front or back of the lens part to selectively pass ultraviolet rays.
The method of claim 3,
The filter-
A first slider that horizontally feeds the first filter by an external force and disposes the filter in front of or behind the lens;
And a second slider that horizontally feeds the second filter by an external force and disposes the filter in front of or behind the lens portion,
Wherein each of the first slider and the second slider includes:
A transport track arranged in a horizontal direction;
A slit formed in a horizontal direction against the transporting track;
And a conveying unit that is sandwiched between the conveying track and the slit and accommodates the first filter or the second filter and has protrusions formed on one side thereof.
1. An ultraviolet ray inspection apparatus comprising a portable terminal having a display unit and an ultraviolet ray photographing apparatus for generating a digital ultraviolet ray image of a vehicle as a subject,
The ultraviolet ray photographing apparatus includes:
A lens portion;
An ultraviolet filter unit provided at the front or rear of the lens unit to allow ultraviolet rays to pass therethrough;
An image sensor for generating an image having passed through the lens unit and the ultraviolet filter unit as the digital ultraviolet image at a predetermined frame rate;
An image processor for providing the digital ultraviolet image generated by the image sensor to the portable terminal;
A first communication interface; And
And a case having a terminal block for electrically connecting the ultraviolet ray photographing apparatus to the portable terminal, the digital ultraviolet ray image is generated for the subject,
The portable terminal includes:
A second communication interface connected to the first communication interface and receiving a digital ultraviolet image provided by the image processing unit;
A display unit for displaying the digital ultraviolet image; And
Generating an image layer that recognizes a vehicle area in the digital ultraviolet image and displays at least one vehicle detailed area divided by the edge of the recognized vehicle area and the recognized vehicle area again based on the gray value, And an inspection unit superimposed on the digital ultraviolet image and displayed on the display unit.
6. The method of claim 5,
The ultraviolet filter unit includes:
A first filter passing only the UVA region;
A second filter for passing only the UVB region; And
And a filter transfer section for transferring at least one selected from the first filter and the second filter to a front side or a back side of the lens section to selectively pass ultraviolet rays.
The method according to claim 6,
The filter-
A first slider that horizontally feeds the first filter by an external force and disposes the filter in front of or behind the lens;
And a second slider that horizontally feeds the second filter by an external force and disposes the filter in front of or behind the lens portion,
Wherein each of the first slider and the second slider includes:
A transport track arranged in a horizontal direction;
A slit formed in a horizontal direction against the transporting track;
And a transfer unit that is sandwiched between the transfer track and the slit and accommodates the first filter or the second filter and has protrusions formed on one side thereof.

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