KR102159359B1 - Around view monitoring system and the operating method - Google Patents

Abstract

The present invention provides an illumination luminance value corresponding to an illumination area of a headlamp mounted on the vehicle in a display module, a camera module for capturing a surrounding image of a vehicle, and an AVM image synthesized with the surrounding image, and a shade luminance corresponding to the shadow area. AVM system including a control module that calculates a value, generates status information of the headlamp based on the illumination luminance value and the shadow luminance value, and controls the AVM image and the status information to be displayed on the display module Provides.

Description

AVM system and its operation method {Around view monitoring system and the operating method}

The present invention relates to an AVM system and a method of operation thereof, and more particularly, to an AVM system for displaying status information on whether a headlamp is normally operated on a display module, and an operation method thereof.

In general, when driving in a dark place or at night, a vehicle is equipped with tail lights and headlamps to induce safe driving through vehicle width indications between the front and rear vehicles, and to secure the driver's visibility by illuminating the front brightly. In addition, lighting devices such as fog lights are installed to facilitate identification of the own vehicle when fog is present.

Recently, vehicles are equipped with an AVM system that displays a top view or an around view image to a driver using cameras mounted in the front, rear, and left and right sides of the vehicle.

The AVM system displays a front image when the vehicle is moving forward and a reverse image when the vehicle is moving backward together with an around view image. However, the front image or the rear image is an image after the left and right partial regions of the captured image have been deleted.

Recently, a study is underway for the driver to check whether the headlamp is in normal operation or abnormal operation using the AVM system through the AVM image while the headlamp is on.

An object of the present invention is to provide an AVM system and a method for operating the same by displaying status information on whether a headlamp is normally operating on a display module, and allowing a driver to check whether the headlamp is operating normally or abnormally. .

The AVM system according to the first embodiment of the present invention includes a display module, a camera module for photographing a peripheral image of a vehicle, and an illumination luminance corresponding to an illumination area of a headlamp mounted on the vehicle in the AVM image synthesized from the peripheral image. Calculate a value and a shadow luminance value corresponding to the shaded area, generate state information of the headlamp based on the illumination luminance value and the shadow luminance value, and display the AVM image and the state information on the display module. It may include a control module to control.

The AVM system according to the second embodiment of the present invention supplies or blocks driving power to a display module, a camera module for photographing a peripheral image of a vehicle, and first and second headlamps mounted on the vehicle, 2 A lamp driving module that turns on or off a headlamp, and a first illumination luminance value corresponding to the first illumination area of the first headlamp in the AVM image synthesized by the surrounding image and a first illumination value corresponding to the first shade area. 1 Calculate a shade luminance value, calculate a second illumination luminance value corresponding to the second illumination area of the second headlamp and a second shade luminance value corresponding to the second negative area area, and calculate the first and second illumination luminance values. Generates first state information of the first headlamp and second state information of the second headlamp based on a value and the first and second shade luminance values, and the AVM image and the first and second state information are It may include a control module for controlling to be displayed on the display module.

The operation method of the AVM system according to the present invention includes the steps of the camera module capturing the surrounding image of the vehicle, the lighting luminance value and the shadow corresponding to the lighting area of the headram mounted on the vehicle from the AVM image synthesized with the surrounding image. Calculating a shadow luminance value corresponding to an area, comparing whether the shadow luminance value is greater than a set reference luminance value, and if the shadow luminance value is greater than the reference luminance value, a difference between the illumination luminance value and the shadow luminance value Determining whether the difference luminance value falls within the set reference difference luminance value range, and when the difference luminance value falls within the reference difference luminance value range, the headlamp is in normal operation, and status information of the headlamp is generated, It may include the step of displaying the AVM image and the status information on a display module.

The AVM system and its operation method according to the present invention are based on a set area in an AVM image synthesized based on a surrounding image of a vehicle, that is, an illumination luminance value and a shadow luminance value corresponding to the illumination area and shadow area of the headlamp. When the lamp is turned on, that is, whether the headlamp is in normal operation or abnormal operation, the status information of the headlamp is displayed on the display module that displays the AVM image, so that the driver is seated in the driver's seat. There is an advantage that can be checked.

1 is a control block diagram showing a control configuration of an AVM system according to a first embodiment of the present invention.
FIG. 2 is a diagram illustrating an example of an AVM image displayed on the display module shown in FIG. 1.
3 is a flowchart illustrating a method of operating the AVM system according to the first embodiment of the present invention.
4 is a control block diagram showing a control configuration of an AVM system according to a second embodiment of the present invention.
5 is a diagram showing an example of an AVM image displayed on the display module shown in FIG. 4.

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in a variety of different forms, and only these embodiments make the disclosure of the present invention complete, and are common knowledge in the technical field to which the present invention pertains. It is provided to completely inform the scope of the invention to those who have, and the invention is only defined by the scope of the claims. The same reference numerals refer to the same components throughout the specification.

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used as meanings that can be commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in a commonly used dictionary are not interpreted ideally or excessively unless explicitly defined specifically.

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

1 is a control block diagram showing a control configuration of an AVM system according to a first embodiment of the present invention.

Referring to FIG. 1, the AVM system 100 may include a display module 110, a camera module 120, and a control module 130.

The display module 110 may display the AVM image transmitted from the control module 130 and the surrounding image of the vehicle captured by the camera module 120.

The display module 110 may perform a touch input and may display an input menu into which a display command is input.

In an embodiment, the input menu is described as being capable of touch input on the display module 110, but a physical force such as a button may be applied to input a display command, but the present disclosure is not limited thereto.

The display module 110 may include a first display unit 112 that displays the peripheral image and a second display unit 114 that displays the AVM image, but is not limited thereto.

In an embodiment, the display module 110 indicates that the peripheral image and the AVM image are displayed on different first and second display units 112 and 114, but the peripheral image and the AVM image are displayed in one display unit. It may be displayed in different areas, but the present invention is not limited thereto.

A detailed description of the display module 110 will be described later in FIG. 2.

The camera module 120 may include a front camera 122, first and second side cameras 124 and 126, and a rear camera 128.

In an embodiment, the camera module 120 automatically photographs a surrounding image of the vehicle, or when the vehicle gear is located at the set'R' end, or when the vehicle speed is lowered to the set speed, or the control module 130 By operating according to the control, the surrounding image of the vehicle may be captured, but the present disclosure is not limited thereto.

The front camera 122 may capture a front image of the vehicle among the surrounding images, and the first and second side cameras 124 and 126 may capture first and second side images of the vehicle among the surrounding images.

In this case, the first and second side cameras 124 and 126 may photograph the left and right sides of the vehicle.

In addition, the rear camera 128 may capture a rear image of the vehicle among the surrounding images.

In the embodiment, the camera module 120 is shown to include four cameras 122, 124, 126, and 128, but the number of cameras is not limited.

In addition, in an embodiment, it is described that the four cameras 122, 124, 126, and 128 transmit the respectively captured front image, the first and second side images, and the rear image to the control module 130, Although shown in the drawing, the front image, the first and second side images, and the rear image captured by four cameras (122, 124, 126, 128) are combined to generate a peripheral image and transmitted to the control module 130 It may include a camera control unit (not shown), but is not limited thereto.

The control module 130 may include an image processing unit 132, a luminance comparing unit 134, a luminance determining unit 136 and a control unit 138.

The image processing unit 132 synthesizes the front image, the first and second side images, and the rear image input from the camera module 120 into the AVM image according to a set image synthesis condition, and the illumination area in the AVM image The illumination luminance value corresponding to the pixel included in and the shadow luminance value corresponding to the pixel included in the shadow area may be calculated.

That is, the pixel has Y, Cr, and Cb values to represent an image, where Y is a luminance value, and may have a value of 0 to 255.

The image processing unit 132 is based on the Y value corresponding to at least one pixel each included in the illumination area and the shade area of the headlamp (not shown) mounted on the vehicle in the AVM image, the illumination luminance value and the shadow The luminance value can be calculated.

The above-described illumination area and the shadow area may correspond to a preset area in the AVM image, or a background image and an image having different luminance values may be classified, but are not limited thereto.

Accordingly, the image processing unit 132 calculates the illumination luminance value based on the luminance value of the pixel included in the illumination area, and calculates the shadow luminance value based on the luminance value of the pixel included in the shadow area.

The luminance comparing unit 134 compares the shade luminance value calculated by the image processing unit 132 with a set reference luminance value.

That is, the luminance comparing unit 134 may output a first signal when the shadow luminance value is less than the reference luminance value, and output a second signal when the shadow luminance value is greater than the reference luminance value.

The reference luminance value is a luminance value set to check whether the vehicle is located in a bright or dark place.

For example, when the headlamp is in the ON state, that is, in the lit state, the lighting luminance value has a value of about 150 to 160, and the shadow luminance value has a value of about 10 to 20. have.

In this way, the reference luminance value may be a value for first checking whether the shadow luminance value is a useful value in order to confirm that the headlamp is maintained in an on state, and the illumination luminance value and the shadow luminance value are separated. It may be a luminance value set corresponding to the external brightness to be used.

When the first signal is input from the luminance comparing unit 134, the luminance determining unit 136 calculates a difference luminance value between the illumination luminance value and the shadow luminance value, and the reference difference luminance value in which the difference luminance value is set. It can be determined whether it is within the range.

That is, as described above, when the headlamp is in the ON state, it can be seen that the illumination luminance value and the shadow luminance value may have the difference luminance value of 130 to 150.

Accordingly, the reference difference luminance value range may have a range of 130 to 150, but is not limited thereto.

When the difference luminance value falls within the difference luminance value range, the control unit 138 generates status information of the headlamp as the headlamp is in normal operation, and if the difference luminance value does not fall within the difference luminance value range, the As the headlamp is operating abnormally, the state information of the headlamp may be generated and controlled to be displayed on the display module 110.

In addition, when the second signal is input from the luminance comparing unit 134, the controller 138 may control to display movement information indicating the movement of the vehicle on the display module 110.

That is, when the second signal is input, the control unit 138 determines that the vehicle is located in a bright place, and cannot check whether the headlamp is operating normally when the headlamp is on, so the vehicle moves to a dark place. The movement information requesting to be performed is generated and transmitted to the display module 110.

FIG. 2 is a diagram illustrating an example of an AVM image displayed on the display module shown in FIG. 1.

2 is an example for explaining the display module 110, but is not limited thereto.

Referring to FIG. 2, the display module 110 may include a first display unit 112 and a second display unit 114 as shown in FIG. 1.

At this time, an input menu 113 for inputting a display command may be displayed on the first display unit 112 so that any one of the front image, the first, second side image, and rear image captured by the camera module 120 is displayed. have.

The second display unit 114 may display an AVM image synthesized by deleting at least a portion of the front image, the first and second side images, and the rear image.

At this time, the second display unit 114 is not affected when the front of the vehicle, that is, the headlamp (not shown), is in front of the illumination area h1 and the first and second sides of the vehicle, that is, the headlamp is turned on. Shaded areas h2 and h3 that are not included may be included.

Here, the shaded areas h2 and h3 are shown to be set on the first and second sides of the vehicle, respectively, but only the shaded areas set on either side of the first and second sides to check whether the headlamp is operating normally It can be used, but is not limited thereto.

3 is a flowchart illustrating a method of operating the AVM system according to the first embodiment of the present invention.

Referring to FIG. 3, the control module 130 of the AVM system 100 operates the camera module 120 to capture the surrounding images of the vehicle, that is, the front image, the first and second side images, and the rear image (S110). .

Thereafter, the control module 130 synthesizes the front image, the first and second side images, and the rear image captured by the camera module 120 according to a set composite image condition (S120), and the AVM image In step S130, an illumination luminance value corresponding to the illumination area of the headlamp mounted on the vehicle and a shadow luminance value corresponding to the shadow area are calculated (S130).

The control module 130 compares whether the shadow luminance value is greater than a set reference luminance value (S140), and when the shadow luminance value is greater than the reference luminance value, movement information indicating the movement of the vehicle is displayed on the display module 110. To be controlled (S150).

In addition, the control module 130 calculates a difference luminance value between the illumination luminance value and the shadow luminance value when the shadow luminance value is less than the reference luminance value (S160), and the reference difference luminance value is set. It is determined whether it falls within the value range (S170).

If the difference luminance value does not fall within the reference difference luminance value range, the control module 130 generates status information of the headlamp as the headlamp is operating abnormally, and displays the AVM image and the status information in the display module ( 110), and if the difference luminance value falls within the reference difference luminance value range, the headlamp is in normal operation and status information of the headlamp is generated, and the AVM image and the status information are displayed. Display on the display module 110 (S190).

4 is a control block diagram showing a control configuration of an AVM system according to a second embodiment of the present invention.

Referring to FIG. 4, the AVM system 200 may include a display module 210, a camera module 220, a lamp driving module 230, and a control module 240.

The display module 210 may display the AVM image transmitted from the control module 240 and the surrounding image of the vehicle captured by the camera module 220.

The display module 210 may perform a touch input and may display an input menu into which a display command is input.

In an embodiment, the input menu is described as being capable of touch input on the display module 210, but a physical force such as a button may be applied to input a display command, but the present disclosure is not limited thereto.

The display module 210 may include a first display unit 212 that displays the peripheral image and a second display unit 214 that displays the AVM image, but is not limited thereto.

In an embodiment, the display module 210 indicates that the peripheral image and the AVM image are displayed on different first and second display units 212 and 214, but the peripheral image and the AVM image are displayed in one display unit. It may be displayed in different areas, but the present invention is not limited thereto.

A detailed description of the display module 210 will be described later in FIG. 5.

The camera module 220 may include a front camera 222, first and second side cameras 224 and 226, and a rear camera 228.

In an embodiment, the camera module 220 automatically captures a surrounding image of the vehicle, or when the vehicle gear is located at the set'R' end, or when the vehicle speed is lowered to the set speed, or the control module 240 By operating according to the control, the surrounding image of the vehicle may be captured, but the present disclosure is not limited thereto.

The front camera 222 may capture a front image of the vehicle among the surrounding images, and the first and second side cameras 224 and 226 may capture the first and second side images of the vehicle among the surrounding images.

At this time, the first and second side cameras 224 and 226 may photograph the left and right sides of the vehicle.

In addition, the rear camera 228 may capture a rear image of the vehicle among the surrounding images.

In an embodiment, it is described that the four cameras 222, 224, 226, 228 transmit the captured front image, the first and second side images, and the rear image to the control module 240, respectively, and Although shown, a camera that generates a peripheral image by integrating the front image, the first, second side image, and the rear image captured by four cameras (222, 224, 226, 228) and delivers it to the control module 240 It may include a control unit (not shown), but is not limited thereto.

The lamp driving module 230 may supply or cut off driving power to the first and second headlamps (not shown) mounted on the vehicle to turn on or off the first and second headlamps.

Here, the lamp driving module 230 supplies or cuts off the driving power to the first and second headlamps according to the control of the control module 240, or an on command of the first and second headlamps input from the outside. Alternatively, the driving power may be supplied or cut off according to an OFF command, but the present disclosure is not limited thereto.

The control module 240 may include an image processing unit 242, a first luminance determining unit 243, a luminance comparing unit 244, a second luminance determining unit 246 and a control unit 248.

The image processing unit 242 synthesizes the front image, the first and second side images, and the rear image input from the camera module 220 into the AVM image according to a set image synthesis condition, and the first image from the AVM image A first illumination luminance value corresponding to the first illumination area of the headlamp and a first shadow brightness value corresponding to the first shade area are calculated, and a second illumination luminance value corresponding to the second illumination area of the second headlamp And a second shadow luminance value corresponding to the second sound region region.

That is, the image processing unit 242 includes the first and second illumination luminance values corresponding to pixels included in the first and second illumination areas, and the first and second illumination luminance values corresponding to pixels included in the first and second shaded areas. Shade luminance value can be calculated.

That is, the pixel has Y, Cr, and Cb values to represent an image, where Y is a luminance value, and may have a value of 0 to 255.

The image processing unit 242 is based on a Y value corresponding to at least one pixel included in each of the first and second illumination areas and the first and second shaded areas of the first and second headlamps in the AVM image, The first and second lighting luminance values and the first and second shadow luminance values may be calculated.

As described above, the first and second illumination areas and the first and second shaded areas may correspond to a preset area of the AVM image, or may be divided into images having different luminance values from the background image, and are not limited thereto. Does not.

Accordingly, the image processing unit 242 calculates the first and second lighting luminance values based on the luminance values of the pixels included in the first and second lighting areas, and calculates the luminance of the pixels included in the first and second shaded areas. The first and second shadow luminance values are calculated based on the values.

The first luminance determining unit 243 may determine whether an illumination difference luminance value between the first and second illumination luminance values falls within a set difference luminance value range.

The illumination difference luminance value is a luminance value for checking whether an obstacle exists in front of one of the first and second headlamps, and when an obstacle exists in front of one of the first and second headlamps, the first Since the first and second headlamps may have different luminance values, an error may occur in determining whether the first and second headlamps operate normally.

When the illumination difference luminance value falls within the range of the difference luminance value, the luminance comparing unit 244 compares the lower shade luminance value among the first and second shade luminance values calculated by the image processing unit 242 with a set reference luminance value. do.

That is, the luminance comparing unit 244 outputs a first signal when a lower shadow luminance value among the first and second shadow luminance values is less than the reference luminance value, and a lower shadow luminance value among the first and second shadow luminance values. If it is greater than the reference luminance value, a second signal may be output.

The reference luminance value is a luminance value set to check whether the vehicle is located in a bright or dark place.

The reference luminance value may be a value for first checking whether a lower shadow luminance value among the first and second shadow luminance values is a useful value in order to confirm that the first and second headlamps are maintained in an on state, and the It may be a luminance value set corresponding to the first and second illumination luminance values and external brightness for distinguishing the first and second shadow luminance values.

When the first signal is input from the luminance comparing unit 244, the second luminance determining unit 246 is between any one of the first and second luminance values and a lower shadow luminance value among the first and second shadow luminance values. The difference luminance value of is calculated, and it may be determined whether the difference luminance value falls within a set reference difference luminance value range.

When the difference luminance value falls within the difference luminance value range, the control unit 248 generates state information of the first and second headlamps as the first and second headlamps are operating normally, and the difference luminance value is If it does not fall within the difference luminance value range, the first and second headlamps are operating abnormally, and the state information of the first and second headlamps may be generated and displayed on the display module 210.

In addition, when the second signal is input from the luminance comparing unit 244, the controller 248 may control the display module 210 to display movement information indicating the movement of the vehicle.

That is, when the second signal is input, the controller 248 determines that the vehicle is located in a bright place, and cannot check whether the first and second headlamps are in normal operation when the first and second headlamps are turned on. , The movement information requesting the vehicle to move to a dark place is generated and transmitted to the display module 210.

5 is a diagram showing an example of an AVM image displayed on the display module shown in FIG. 4.

5 is an example for explaining the display module 210, but is not limited thereto.

Referring to FIG. 5, the display module 110 may include a first display unit 212 and a second display unit 214 as shown in FIG. 4.

In this case, an input menu 213 for inputting a display command may be displayed on the first display unit 212 so that any one of the front image, the first, second side image, and rear image captured by the camera module 220 is displayed. have.

The second display unit 214 may display an AVM image synthesized by deleting at least a portion of the front image, the first and second side images, and the rear image.

At this time, the second display unit 214 is in front of the vehicle, that is, the first and second headlamps (not shown) are in front of the first and second illumination areas h11 and h12 and the first and second sides of the vehicle, that is, It may include first and second shaded areas h13 and h14 that are not affected when the first and second headlamps are turned on.

Here, the first and second illumination areas h11 and h12 and the first and second shaded areas h13 and h14 are areas for determining whether the first and second headlamps operate normally.

That is, the control module 240 normally operates the first headlamp based on the first lighting luminance value calculated in the first lighting area h11 and the first shading luminance value calculated in the first shading area h13. You can judge whether or not.

In addition, the control module 240 normally operates the second headlamp based on the second lighting luminance value calculated in the second lighting area h12 and the second shading luminance value calculated in the second shading area h14. You can judge whether or not.

In addition, as described above, the control module 240 may determine whether any one of the first and second headlamps operates normally or whether an obstacle exists based on the result of comparing the first and second illumination luminance values. In addition, by comparing the first and second shadow luminance values and comparing the low luminance value and the first and second illumination luminance values, it is possible to determine whether each of the first and second headlamps operates normally. Do not put it.

Terms such as "include", "consist of", or "have" described above, unless otherwise stated, mean that the corresponding component may be included, and thus other components are not excluded. It should be interpreted as being able to further include other components.

In the above, preferred embodiments have been illustrated and described, but the present invention is not limited to the specific embodiments described above, and common knowledge in the technical field to which the present invention pertains without departing from the gist of the present invention claimed in the claims. Of course, various modifications may be made by the operator, and these modifications should not be understood individually from the technical spirit or prospect of the present invention.

Claims (18)

Display module;
A camera module for photographing a surrounding image of the vehicle; And
In the AVM image synthesized from the surrounding image, an illumination luminance value corresponding to the illumination area of the headlamp mounted on the vehicle and a shadow luminance value corresponding to the shadow area are calculated, and based on the illumination luminance value and the shadow luminance value. And a control module for generating status information of the headlamp and controlling the AVM image and the status information to be displayed on the display module. The method of claim 1,
The camera module,
A front camera for photographing a front image of the vehicle among the surrounding images;
A first side camera for capturing a first side image of the vehicle among the surrounding images;
A second side camera for photographing a second side image of the vehicle among the surrounding images; And
AVM system including; a rear camera for photographing a rear image of the vehicle among the surrounding images. The method of claim 1,
The display module,
A first display unit that displays the surrounding image; And
AVM system including; a second display unit for displaying the AVM image and the status information. The method of claim 3,
The surrounding image is,
Including the front image, the first and second lateral images and the rear image of the vehicle,
In the first display unit,
An AVM system in which an input menu for inputting a display command for any one of the front image, the first and second side images, and the rear image is displayed. The method of claim 1,
The surrounding image is,
Including the front image, the first and second lateral images and the rear image of the vehicle,
The control module,
The front image, the first and second lateral images, and the rear image are synthesized into the AVM image according to a set image synthesis condition, and the illumination luminance value and the shadow corresponding to the pixels included in the illumination area in the AVM image An image processing unit that calculates the shadow luminance value corresponding to the pixel included in the region;
A luminance comparing unit that outputs a first signal when the shadow luminance value is less than a set reference luminance value and outputs a second signal when the shadow luminance value is greater than the reference luminance value;
A luminance determining unit for determining whether a difference luminance value between the illumination luminance value and the shadow luminance value falls within a set reference difference luminance value range when the first signal is input; And
If the difference luminance value falls within the difference luminance value range, the headlamp is in normal operation, and the state information is generated, and if the difference luminance value does not fall within the difference luminance value range, the headlamp is abnormally operated. AVM system including; a control unit for generating state information to be displayed on the display module. The method of claim 5,
The control unit,
When the second signal is input, the AVM system controls the display module to display movement information indicating the movement of the vehicle. The method of claim 5,
The reference luminance value is,
An AVM system that is a luminance value set corresponding to an external brightness for distinguishing the illumination luminance value and the shadow luminance value. Display module;
A camera module for photographing a surrounding image of the vehicle;
A lamp driving module that supplies or cuts off driving power to the first and second headlamps mounted on the vehicle to turn on or off the first and second headlamps; And
A first illumination luminance value corresponding to the first illumination area of the first headlamp and a first shadow luminance value corresponding to the first shadow area are calculated from the AVM image synthesized by the surrounding image, and the second headlamp is A second illumination luminance value corresponding to a second illumination region and a second shadow luminance value corresponding to a second negative region are calculated, and based on the first and second illumination luminance values and the first and second shadow luminance values, the A control module that generates first state information of a first headlamp and second state information of the second headlamp, and controls the AVM image and the first and second state information to be displayed on the display module. AVM system. The method of claim 8,
The lamp driving module,
An AVM system that supplies or cuts off the driving power to the first and second headlamps according to the control of the control module. The method of claim 8,
The surrounding image is,
Including the front image, the first and second lateral images and the rear image of the vehicle,
The control module,
The front image, the first and second lateral images, and the rear image are synthesized into the AVM image according to a set image synthesis condition, and the first and second pixels corresponding to pixels included in the first and second illumination areas in the AVM image And an image processing unit that calculates 2 illumination luminance values and the first and second shadow luminance values corresponding to pixels included in the first and second shaded areas;
A first luminance determining unit for determining whether an illumination difference luminance value between the first and second illumination luminance values falls within a set difference luminance value range;
When the illumination difference luminance value falls within the difference luminance value range, a first signal is output when a lower shadow luminance value among the first and second shadow luminance values is less than a set reference luminance value, and a second signal is output when it is greater than the reference luminance value. A luminance comparison unit for outputting a signal;
A second luminance determination unit determining whether a difference luminance value between one of the first and second illumination luminance values and the shadow luminance value falls within a set reference difference luminance value range when the first signal is input; And
If the difference luminance value falls within the difference luminance value range, the first and second headlamps are in normal operation, and the first and second state information is generated, and if the difference luminance value does not fall within the difference luminance value range, the AVM system comprising; a control unit for controlling to be displayed on the display module by generating the first and second status information as at least one of the first and second headlamps are operating abnormally. The method of claim 10,
The control unit,
If the lighting difference luminance value between the first and second lighting luminance values does not fall within the set difference luminance value range, it is determined that an obstacle exists in front of one of the first and second headlamps, and the obstacle information is displayed in the display module. AVM system that controls to be displayed on. The method of claim 10,
The control unit,
When the second signal is input, the AVM system controls the display module to display movement information indicating the movement of the vehicle. The camera module capturing an image around the vehicle;
Calculating an illumination luminance value corresponding to an illumination area of a headram mounted on the vehicle and a shadow luminance value corresponding to a shadow area from the AVM image synthesized by the surrounding image;
Comparing whether the shadow luminance value is greater than a set reference luminance value;
If the shadow luminance value is less than the reference luminance value, determining whether a difference luminance value between the illumination luminance value and the shadow luminance value falls within a set reference difference luminance value range; And
If the difference luminance value falls within the reference difference luminance value range, generating status information of the headlamp as the headlamp is operating normally, and displaying the AVM image and the status information on a display module; including; How to operate the AVM system. The method of claim 13,
The surrounding image is,
A method of operating an AVM system including a front image, first and second lateral images, and a rear image of the vehicle. The method of claim 13,
The calculation step,
A method of operating an AVM system for calculating the illumination luminance value and the shadow luminance value according to the luminance values of the pixels included in the illumination area and the shadow area. The method of claim 13,
The reference luminance value is,
A method of operating an AVM system that is a luminance value set corresponding to an external brightness for distinguishing the illumination luminance value and the shadow luminance value. The method of claim 13,
After the determination step,
If the difference luminance value does not fall within the reference difference luminance value range, generating status information of the headlamp as the headlamp is operating abnormally, and displaying the AVM image and the status information on the display module; Operation method of the AVM system further comprising. The method of claim 13,
After the comparison step,
When the shadow luminance value is greater than the reference luminance value, displaying movement information indicating movement of the vehicle on the display module.

Images