KR101756252B1 - Displaying control apparatus of head up display and method thereof - Google Patents

Displaying control apparatus of head up display and method thereof Download PDF

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Publication number
KR101756252B1
KR101756252B1 KR1020150156988A KR20150156988A KR101756252B1 KR 101756252 B1 KR101756252 B1 KR 101756252B1 KR 1020150156988 A KR1020150156988 A KR 1020150156988A KR 20150156988 A KR20150156988 A KR 20150156988A KR 101756252 B1 KR101756252 B1 KR 101756252B1
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South Korea
Prior art keywords
image
vibration
vehicle
head
displacement
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KR1020150156988A
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Korean (ko)
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KR20170054637A (en
Inventor
금병직
오형석
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현대오트론 주식회사
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
    • G01H1/12—Measuring characteristics of vibrations in solids by using direct conduction to the detector of longitudinal or not specified vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
    • B60R2300/20—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of display used
    • B60R2300/205—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of display used using a head-up display
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/014—Head-up displays characterised by optical features comprising information/image processing systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0179—Display position adjusting means not related to the information to be displayed
    • G02B2027/0183—Adaptation to parameters characterising the motion of the vehicle

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • Instrument Panels (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

The present invention relates to a vibration detecting apparatus for detecting a vibration of a vehicle, a head-up display unit for displaying an image on a windshield, a vibration detecting unit for detecting a displacement by vibration of the vehicle, And a control unit for displaying the image through a head-up display unit.

Description

Technical Field [0001] The present invention relates to a display control apparatus and method for a head-up display,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a display control apparatus and method for a head-up display, and more particularly, to a display control apparatus and method for a head-up display that displays an image of an object at an accurate position regardless of vibration or shaking of the vehicle.

There is a disadvantage in that the information providing apparatus for the user mounted on the vehicle is distracted by the driver's attention and there is a risk of accident occurrence. A head up display (HUD) is an information providing device for solving such a problem. The head-up display can display various information provided to the driver on the top of the windshield. Accordingly, there is an advantage in that the risk of an accident can be prevented because the driver does not have to turn his or her gaze to check the information, but the position of the provided information does not coincide with the position of the actual image at the front, There is a problem in that the driver's safety and convenience may be deteriorated due to a cognitive load to recognize the displayed information.

In order to solve such a problem, an augmented reality type head-up display which coincides the positions of the images of actual objects located in the front and the information displayed in the head-up display based on the driver's view is emerging. The augmented reality type head-up display can generate a virtual graphic and display it in combination with the actual image in front of the driver, so that the information required by the driver can be recognized by the driver as if it is displayed together with the actual object in front of the driver.

Conventional augmented reality type head-up display devices display an image in front of an object according to the degree of risk. The image is inaccurately positioned due to vibration or shaking of the vehicle, and an image is formed that surrounds the object in consideration of the position of the image , And when the vehicle shake is severe, the size of the image becomes excessively large and the accuracy of the image is deteriorated.

Background Art [0002] The background art of the present invention is disclosed in Korean Patent Application Publication No. 10-2013-0104821 (2033.09.25) entitled " Vehicle Information Display System and Method ".

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an image display apparatus and an image display method, in which an image of an object is displayed at an accurate position irrespective of vibration or shaking of the vehicle, And to provide a display control apparatus and method for a head-up display that reduces mismatch.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an apparatus and method for controlling display of a head-up display which displays an image at an accurate position, thereby improving the reliability of a driver and enabling safe driving.

According to an aspect of the present invention, there is provided an apparatus for controlling display of a head-up display, including: a vibration sensing unit for sensing vibration of a vehicle; A head-up display unit for displaying an image on the windshield; And a control unit for detecting a displacement by vibration of the vehicle detected through the vibration sensing unit, adjusting an image according to the displacement, and displaying the adjusted image through the head-up display unit.

The control unit of the present invention is characterized in that image coordinates of a position opposite to the direction of the displacement from the previous image coordinates and having the same size are newly detected and the image is displayed in the detected image coordinates.

The control unit of the present invention is characterized in that the position of the image is controlled by predicting the vibration sensed by the vibration sensing unit through a prediction filter.

The present invention further includes a road characteristic information storage unit for storing road characteristic information, wherein the control unit corrects the position of the image according to the road characteristic after detecting the road characteristic in the road characteristic information storage unit .

In the present invention, the controller corrects the position of the image according to at least one of the gradient of the road and the curvature.

A method of controlling a display of a head-up display according to an aspect of the present invention includes: detecting vibration of a vehicle by a vibration sensing unit; A closure for detecting a displacement of the control unit in accordance with the vibration sensed by the vibration sensor; And displaying the image on the head-up display unit by adjusting the position of the image according to the displacement.

In the step of adjusting the position of the image according to the displacement of the present invention through the head up display unit, the control unit newly detects the image coordinates of the position opposite to the displacement direction and the same size from the previous image coordinates , And displays the image in the detected image coordinates.

In the step of adjusting the position of the image according to the displacement of the present invention through the head-up display unit, the control unit predicts the vibration sensed by the vibration sensing unit through a prediction filter and controls the position of the image .

The controller may further include a step of correcting the position of the image according to the road characteristic after the road characteristic information storage unit detects the road characteristic.

In the step of correcting the position of the image of the present invention, the control unit corrects the position of the image according to at least one of the gradient of the road and the curvature.

An apparatus and method for controlling a display of a head-up display according to an aspect of the present invention displays an image of an object at an accurate position regardless of vibration or shaking of a vehicle, thereby reducing image mismatch between an object and an image.

An apparatus and method for controlling a display of a head-up display according to an aspect of the present invention can reliably display an image even in vibration or shaking of a vehicle to improve reliability and safe operation of the driver.

1 is a block diagram of a display control apparatus of a head-up display according to an embodiment of the present invention.
2 is a view showing a state where an image is mismatched to an object due to vibration of a vehicle.
3 is a diagram showing an example of detecting vehicle vibration according to an embodiment of the present invention.
4 is a view illustrating a state in which images are matched according to an embodiment of the present invention.
5 is a flowchart of a display control method of a head-up display according to an embodiment of the present invention.

Hereinafter, an apparatus and method for controlling a display of a head-up display according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. Further, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the user, the intention or custom of the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a block diagram of a display control apparatus of a head-up display according to an embodiment of the present invention. FIG. 2 is a view showing a state where an image is mismatched to an object by vibration of a vehicle. FIG. 4 is a view illustrating an example in which images are matched according to an embodiment of the present invention. FIG.

Referring to FIG. 1, a display control apparatus for a head-up display according to an exemplary embodiment of the present invention includes a photographing unit 10, a vibration sensing unit 20, a control unit 30, a GPS (Global Positioning System) A road characteristic information storage unit 50, and a head-up display unit 60.

The photographing section 10 photographs a video in front of the vehicle. Particularly, the photographing unit 10 photographs a walking direction or a vehicle traveling direction to acquire an image of a pedestrian or an obstacle.

As the photographing unit 10, an FIR (Far Infra Red) camera, a CMOS (Complementary Metal-Oxide Semiconductor) camera, a CCD (Charge Coupled Device) The CMOS camera or the CCD camera senses the light in the visible region and projects the image, thereby acquiring an image similar to that of a human eye. And the FIR camera acquires the image by projecting light of infrared band which is not seen by human.

The vibration sensing unit 20 senses the vibration of the vehicle 70. Generally, the vibration of the vehicle 70 can be caused by the power transmitted from the engine (not shown) through the power transmission device (not shown) in synchronism with the vibration of the vehicle drive system, and also by the road condition or the like.

Referring to FIG. 2, it can be seen that an image can not be displayed at an accurate point of an actual object due to the vibration of the vehicle, so that a mismatch occurs between the vehicle and the image.

Such vibration may vary in the yaw direction, the roll direction, and the pitch direction as shown in Fig.

The vibration sensing unit 20 senses the vibration of the vehicle through an acceleration, a gyro, a garage, a speed, and a steering angle of the vehicle. The vibration sensing unit 20 senses the distance between the previous position and the current position of the vehicle and the vibration direction based on the acceleration, the gyro, the height, the speed, the steering angle,

The GPS module 40 receives the GPS signal from the GPS satellite and acquires the current position of the vehicle 70 using the received GPS signal and inputs the current position of the acquired vehicle 70 to the control unit 30. [

The road characteristic information storage unit 50 stores road characteristics. The road characteristic may include a road segment or a curvature, and may include any other factors that may cause the location of the road to be changed.

The road characteristic information storage unit 50 may be mounted inside the vehicle, but the present embodiment is not limited thereto.

That is, the road characteristic information storage unit 50 may be separately provided in a management system capable of wireless communication with the vehicle 70. [ In this case, the management system receives the road characteristic from the vehicle 70 through the wireless communication network, detects the road characteristic corresponding to the current position of the vehicle 70 in the road characteristic information storage unit 50, To the corresponding vehicle (70).

The head-up display unit 60 displays various images corresponding to objects on the windshield of the vehicle 70 by providing various kinds of convenience information to the driver.

In other words, the head-up display unit 60 generates an image and displays it in combination with an actual image in front of the driver. The head-up display unit 60 matches an image of actual objects to a windshield positioned at the front based on the driver's view. With this head-up display unit 60, the driver recognizes the information as if it is displayed together with the actual object in front of the driver.

The control unit 30 displays an image on the windshield of the vehicle 70 through the head-up display unit 60 based on the image photographed through the photographing unit 10. [ In this case, the control unit 30 detects displacement due to vibration of the vehicle and detects new image coordinates in accordance with the displacement. Further, the controller 30 detects the road characteristic corresponding to the current position in the road characteristic information storage unit 50, corrects the image coordinate according to the road characteristic, 60).

More specifically, when the vibration of the vehicle 70 appearing in the yaw direction, the roll direction and the pitch direction is detected through the vibration detection unit 20, (70) is compensated by using a prediction filter, for example, a Kalman filter. In this case, the control unit 30 predicts the current vibration based on the previous vibration of the vehicle 70 using the prediction filter.

When the vibration is detected by the vibration sensing unit 20, the controller 30 predicts the vibration through the prediction filter and detects the displacement using the vibration. Then, the controller 30 detects the image coordinates corresponding to the corresponding displacement centering on the image coordinates at the previous detection point, and displays the corresponding image according to the detected image coordinates. In this case, the control unit 30 detects image coordinates of a position opposite in magnitude and opposite in direction to the displacement detected by the vibration from the previous image coordinates.

Therefore, the control unit 30 can change the image coordinates according to the displacement detected by the above-mentioned vibration, and display the image according to the changed image coordinates, thereby reducing the mismatch between the object and the image due to the vibration of the vehicle. Thus, even if the vehicle 70 vibrates in the yaw direction, the roll direction, and the pitch direction, the control unit 30 corrects the position of the image so that the image of the real object, irrespective of the vibration of the vehicle 70, Can be displayed at the correct position.

The control unit 30 periodically or non-periodically detects the current position of the vehicle 70 through the GPS module 40 and outputs the road characteristic corresponding to the detected current position of the vehicle 70 to the road characteristic information storage unit 50). In this case, when the road characteristic information storage unit 50 is provided in a separate management system, the control unit 30 transmits the current position of the vehicle 70 to the management system via the wireless communication network, Lt; / RTI > corresponding to the current location of the road. Accordingly, the management system detects the road characteristic corresponding to the current position of the vehicle 70 in the road characteristic information storage unit 50, and transmits the detected road characteristic to the control unit 30. [

Further, when the road characteristic corresponding to the current position of the vehicle 70 is detected as described above, the control section 30 corrects the image coordinates according to the road characteristic. That is, the control unit 30 controls the head characteristic of the road characteristic information storage unit 50 according to the road characteristics, that is, the gradient and the curvature, in case the current vehicle 70 fails to maintain the horizontal state according to the gradient and the curvature of the actual road. By correcting the image coordinates through the display unit 60, the image corresponding to the actual object is displayed at the correct position regardless of the gradient of the road and the curvature.

That is, the control unit 30 displays the image at a more accurate position by moving the position of the image in the up, down, left, and right directions according to the gradient and curvature of the road.

Hereinafter, a display control method of a head-up display according to an embodiment of the present invention will be described in detail with reference to FIG.

5 is a flowchart of a display control method of a head-up display according to an embodiment of the present invention.

Referring to FIG. 5, first, the controller 30 senses the vibration of the vehicle 70 in the yaw direction, the roll direction, and the pitch direction through the vibration sensing unit 20 (S10). In this case, the control unit 30 predicts the current vibration based on the previous vibration of the vehicle 70 using the prediction filter.

Next, the control unit 30 detects the displacement using the vibration (S20), and detects the image coordinates based on the detected displacement (S30).

That is, when the displacement is detected using the vibration, the control unit 30 detects the image coordinates corresponding to the corresponding displacement centering on the image coordinates at the previous detection point, and detects the displacement detected by the corresponding vibration from the previous image coordinates The image coordinate of the position whose direction is opposite and whose size is the same is detected.

Therefore, the control unit 30 can change the image coordinates according to the displacement detected by the above-mentioned vibration, and display the image according to the changed image coordinates, thereby reducing the mismatch between the object and the image due to the vibration of the vehicle.

The control unit 30 periodically or non-periodically detects the current position of the vehicle 70 through the GPS module 40 in step S40 and outputs the road characteristic corresponding to the current position of the detected vehicle 70 as the road characteristic The information storage unit 50 detects it (S50). When the road characteristic information storage unit 50 is provided in a separate management system, the control unit 30 transmits the current position of the vehicle 70 to the management system via the wireless communication network, Lt; / RTI > corresponding to the current location of the road. Accordingly, the management system detects the road characteristic corresponding to the current position of the vehicle 70 in the road characteristic information storage unit 50, and transmits the detected road characteristic to the control unit 30. [

When the image coordinates are detected through the displacement as described above and the road characteristics corresponding to the current position of the vehicle 70 are detected, the control unit 30 corrects the image coordinates according to the road characteristics.

That is, the control unit 30 corrects the image coordinates according to the road gradient and the curvature at the current position in the image coordinates detected through the displacement (S60), and controls the head-up display unit 60 The corresponding image is displayed (S70).

Accordingly, the control unit 30 newly detects the image coordinates by reflecting the displacement due to the vibration of the vehicle, corrects the image coordinates according to the gradient of the road and the curvature, The corresponding image can be displayed at the correct position.

As described above, the present embodiment displays an image of an object at an accurate position regardless of vibration or shaking of the vehicle, thereby reducing image mismatch between the object and the image.

In addition, the present embodiment can stably display an image even in the vibration or shaking of the vehicle, thereby improving the reliability of the driver and enabling safe driving.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, I will understand. Accordingly, the true scope of the present invention should be determined by the following claims.

10:
20:
30:
40: GPS module
50: road characteristic information storage unit
60: head up display section
70: vehicle

Claims (10)

A vibration sensing unit for sensing vibration of the vehicle;
A head-up display unit for displaying an image on the windshield; And
Detecting displacement by vibration of the vehicle detected through the vibration sensing unit, detecting image coordinates corresponding to the displacement centering on the image coordinates at the previous detection point, adjusting the position of the image according to the detected image coordinates And a control unit for displaying the image through the head-up display unit,
And a road characteristic information storage unit for storing the road characteristic, wherein the control unit corrects the position of the image according to the road characteristic after detecting the road characteristic in the road characteristic information storage unit,
Wherein the controller corrects the position of the image according to at least one of a gradient of the road and a curvature of the road.
The apparatus of claim 1,
The image coordinate of a position opposite to the direction of the displacement from the previous image coordinate is newly detected and the image is displayed in the detected image coordinate.
The apparatus of claim 1,
Wherein the position of the image is controlled by predicting the vibration sensed by the vibration sensing unit through a prediction filter.
delete delete Sensing vibration of the vehicle by the vibration sensing unit;
Detecting a displacement of the control unit in accordance with the vibration sensed through the vibration sensing unit; And
Wherein the controller detects the image coordinates corresponding to the displacement centering on the image coordinates at the previous detection time and then adjusts the position of the image according to the detected image coordinates and displays the adjustment through the head up display unit,
Further comprising the step of the controller correcting the position of the image according to the road characteristic after detecting the road characteristic in the road characteristic information storage,
Wherein the controller corrects the position of the image according to at least one of the gradient of the road and the curvature.
7. The method according to claim 6, wherein, in the step of adjusting the position according to the displacement and displaying through the head-up display unit,
Wherein the control unit newly detects an image coordinate of a position opposite to the displacement direction from the previous image coordinate and has the same size and displays the image in the detected image coordinate.
7. The method according to claim 6, wherein, in the step of adjusting the position according to the displacement and displaying through the head-up display unit,
Wherein the control unit predicts the vibration sensed by the vibration sensing unit through a prediction filter to control the position of the image.
delete delete
KR1020150156988A 2015-11-09 2015-11-09 Displaying control apparatus of head up display and method thereof KR101756252B1 (en)

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Cited By (1)

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UA120581C2 (en) * 2019-03-15 2019-12-26 Апостера Гмбх SHAKE COMPENSATION DEVICE FOR AUXILIARY REALITY SYSTEMS IN A VEHICLE (OPTIONS) AND SHOCK COMPENSATION METHOD (OPTIONS)
US11615599B2 (en) 2019-03-15 2023-03-28 Harman International Industries, Incorporated Apparatus of shaking compensation and method of shaking compensation
US10996481B1 (en) * 2019-11-19 2021-05-04 GM Global Technology Operations LLC Head-up display calibration

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JP2014010347A (en) * 2012-06-29 2014-01-20 Jvc Kenwood Corp Image display device, and image display method

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JP2006162529A (en) * 2004-12-10 2006-06-22 Nippon Seiki Co Ltd Display for vehicle
JP2009196630A (en) * 2008-01-25 2009-09-03 Denso Corp Display device
JP2014010347A (en) * 2012-06-29 2014-01-20 Jvc Kenwood Corp Image display device, and image display method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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