KR101806466B1 - Apparatus for controlling head-up display and method thereof - Google Patents

Apparatus for controlling head-up display and method thereof Download PDF

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Publication number
KR101806466B1
KR101806466B1 KR1020150161272A KR20150161272A KR101806466B1 KR 101806466 B1 KR101806466 B1 KR 101806466B1 KR 1020150161272 A KR1020150161272 A KR 1020150161272A KR 20150161272 A KR20150161272 A KR 20150161272A KR 101806466 B1 KR101806466 B1 KR 101806466B1
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South Korea
Prior art keywords
driver
eye level
plane mirror
distance
eye
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KR1020150161272A
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Korean (ko)
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KR20170057919A (en
Inventor
오형석
금병직
박성호
윤순표
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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
    • G02B27/0149—Head-up displays characterised by mechanical 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—Arrangement of adaptations of instruments
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
    • G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
    • 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
    • G02B27/0149—Head-up displays characterised by mechanical features
    • G02B2027/0154—Head-up displays characterised by mechanical features with movable elements
    • 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
    • G02B2027/0187—Display position adjusting means not related to the information to be displayed slaved to motion of at least a part of the body of the user, e.g. head, eye

Abstract

The present invention relates to an apparatus and method for controlling a head-up display, including an eye level detecting unit for detecting an eye level of a driver, and a controller for adjusting a display position and a display angle of HUD (Head Up Display) information corresponding to the driver's eye level do.

Description

TECHNICAL FIELD [0001] The present invention relates to a head-up display control apparatus and a head-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a head-up display control apparatus and method, and more particularly, to a head-up display control apparatus and method for adjusting a virtual image position by adjusting a head-up display according to a driver's eye level.

In recent years, most vehicles have been equipped with a navigation system, which allows the driver to provide the destination and route guidance, and also to project the desired information to the windshield of the vehicle so that the driver can look ahead and acquire the projected information. Vehicles with head-up displays (HUD) are also on the market.

Further, studies are being conducted to enable specific information to be displayed in the form of augmented reality through the head-up display (HUD).

The Augmented Reality (AR) is a technique for superimposing a three-dimensional virtual object on the real world viewed by the user, and displays a virtual world having additional information in real time in a real world together as a single image. (Mixed Reality, MR).

On the other hand, in the conventional head-up display, the virtual image display position (or virtual image formation position) is physically fixed within a specific range.

For example, if the head-up display assumes that the position of the HUD information displayed on the window is fixed and if the driver sitting down with a driver sitting at a lower height is seated at a lower eye level, the virtual image display position A driver who sits on a seat with a tall driver sitting high on the contrary has a problem that the virtual image display position (or virtual image position) is low because the eye level is high.

In order to solve such a problem, there is a need for a method for displaying the HUD information at the eye level of the driver or adjusting the angle at which the HUD information is displayed, so that the HUD information can be displayed in front of the driver as possible .

BACKGROUND ART [0002] The background art of the present invention is disclosed in Korean Patent Laid-Open No. 10-2009-0076242 (published on July 13, 2009, a head-up display device for a vehicle and a method for controlling the operation thereof).

According to an aspect of the present invention, there is provided a head-up display control apparatus, which is created to solve the above-described problems, and adjusts a virtual image position by adjusting an instrument of a head-up display according to an eye level of a driver, The purpose of the method is to provide.

According to an aspect of the present invention, there is provided an apparatus for controlling head-up display comprising: an eye level detecting unit for detecting an eye level of a driver; And a controller for adjusting a display position and a display angle of HUD (Head Up Display) information corresponding to the driver's eye level.

In the present invention, the controller adjusts the distance from the screen on which the HUD information is output to the plane mirror reflecting the HUD information to adjust the display position and display angle of the HUD information corresponding to the driver's eye level .

In the present invention, the control unit may move the plane mirror away from the screen or move it closer to the screen using a motor.

In the present invention, the distance for moving the plane mirror corresponding to the eye level of the driver is stored in advance in the form of a look-up table.

In the present invention, when the flat mirror is moved close to or away from the screen, the control unit reflects the reflection angle of the plane mirror so that the center of the HUD information reflected by the plane mirror is not changed, Is adjusted.

In the present invention, the reflection angle of the plane mirror to be adjusted according to the movement distance of the plane mirror is stored in advance in the form of a look-up table.

In the present invention, the eye level of the driver is a distance from the vehicle ceiling to the eyes of the driver.

In the present invention, it is preferable that the controller controls the eye level sensing unit such that an angle of the eye level sensing unit to a predetermined predetermined point of the vehicle ceiling and an angle of the eye toward the driver's eye, a distance from the eye level sensing unit to a specific point of the ceiling, And eye level of the driver is calculated using the distance information to the eyes of the driver.

In the present invention, the eye level sensing unit may be vertically and horizontally rotatable at an installed position.

According to another aspect of the present invention, there is provided a method of controlling a head-up display, comprising: sensing a driver's eye level through eye level detection; And adjusting a display position and a display angle of HUD (Head Up Display) information corresponding to the driver's eye level by the control unit.

In the present invention, in the step of adjusting the display position and the display angle of the HUD information, the controller adjusts the distance from the screen on which the HUD information is outputted to the plane mirror reflecting the HUD information, The display position of the HUD information is adjusted.

In the present invention, the control unit moves the plane mirror away from the screen by using a motor or moves the plane mirror away from the screen, and a distance for moving the plane mirror corresponding to the driver's eye level is stored in advance in the form of a look- Is stored.

In order to prevent the center of the HUD information reflected by the plane mirror and directed to the aspheric mirror from changing, when the plane mirror is moved close to or away from the screen, And adjusting a reflection angle of the plane mirror.

In the present invention, the control unit adjusts the reflection angle of the plane mirror using a motor, and the reflection angle of the plane mirror to be adjusted according to the movement distance of the plane mirror is stored in advance in the form of a lookup table .

According to an aspect of the present invention, the visibility and convenience of the HUD information of the driver can be increased by adjusting the image position of the virtual image by adjusting the device of the head-up display according to the eye level of the driver.

1 is an exemplary view for explaining an aspheric mirror used in a general head-up display device;
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a head-up display control apparatus.
3 is a flowchart illustrating a method of controlling a head-up display according to an embodiment of the present invention.

Hereinafter, an embodiment of a head-up display control apparatus and method according to the present invention will be described 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. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic illustration for explaining the configuration of an aspherical mirror and a plane mirror of a head-up display device according to an embodiment of the present invention; Fig.

As shown in Fig. 1, the head-up display device for a vehicle reflects HUD information on a windshield through an aspheric mirror for HUD corresponding to an aspherical shape (i.e., a curved surface) of a windshield of each vehicle type.

The HUD information (image) incident on the aspherical mirror is reflected by the plane mirror and incident on the HUD information (image) displayed on the screen.

As described above, the HUD information reflected through the aspheric mirror is displayed on the windshield of the aspherical shape, so that the HUD information having the normal undistorted ratio is displayed on the windshield.

For reference, the aspheric surface refers to a curved surface that slightly deviates from the spherical surface. The spherical surface is usually used for a coaxial optical system because it is easy to fabricate or inspect. However, when an optical system having a small aberration is formed on a small number of surfaces, . In order to manufacture the aspherical mirror, a separate aspherical mirror is precisely injection-molded for each vehicle type.

However, since the head-up display assumes that the position of the HUD information displayed on the window is fixed as described above, if the driver sitting down with a small driver or seat is seated at a low eye level, The position of the virtual image position (or the position of the virtual image position) is low because the eye level is high in the case of the driver who sits on the opposite side of the seat And problems such as flat or flat appear.

Therefore, in this embodiment, the HUD information can be displayed on the front as much as possible in response to the driver's time by adjusting the position at which the HUD information is displayed or the angle at which the HUD information is displayed according to the driver's eye level.

FIG. 2 is a diagram illustrating a schematic configuration of a head-up display control apparatus according to an embodiment of the present invention. Referring to FIG.

2, the head-up display controller according to the present embodiment includes an eye level sensing unit 110, a storage unit 120, a controller 130, a first motor MT1, a plane mirror distance adjustment unit 140, a second motor MT2, and a plane mirror angle adjusting unit 150. [

The eye level sensing unit 110 recognizes the face of the driver and senses the eye level of the driver.

The eye level sensing unit 110 recognizes the driver's face (face) using a sensor installed inside the vehicle, detects eyes at the driver's face, and senses the eye level. The ceiling of the vehicle is preferable as a criterion for sensing the eye level. That is, in this embodiment, the distance from the vehicle ceiling to the eyes of the driver is referred to as eye level for the sake of convenience.

The eye level sensing unit 110 may sense a driver's eye using a camera, an infrared ray sensor, or the like, and may detect the eye level using a different type of detection sensor.

The eye level detecting unit 110 detects an angle from a predetermined position (for example, a front surface of a room mirror, a window top) of the vehicle ceiling toward a predetermined specific point of the vehicle ceiling and an angle to the driver's eyes, Eye level can be calculated using angle information. At this time, the eye level sensing unit 110 may be rotated (for example, up-down rotation, left-right rotation) for the angle detection.

The eye level information may be calculated by the eye level sensing unit 110 and output to the controller 130 or may be output to the controller 130 based on the information detected by the eye level sensing unit 110 130) may be calculated.

The storage unit 120 stores information about the display angle and position of the most appropriate HUD information corresponding to the driver's eye level. Information on the display angle and position of the most appropriate HUD information can be detected based on experiments.

The control unit 130 displays the eye level information detected through the eye level sensing unit 110 and the display position of the HUD information stored in the storage unit 120 corresponding to the eye level It is determined whether adjustment is necessary.

For example, when the eye level of the detected driver is higher or lower than the reference eye level set corresponding to the virtual image-focusing position designed in the head-up display of the vehicle, the control unit 130 displays the display position (virtual image position) It is judged that it is necessary to adjust the angle.

The plane mirror distance adjustment unit 140 drives the first motor MT1 that adjusts the plane mirror toward or away from the screen under the control of the controller 130. [

For example, when the control unit 130 determines that it is necessary to shorten the display position (virtual imaging position) of the HUD information, the plane mirror distance adjustment unit 140 drives the first motor MT1 to rotate the plane mirror Move it closer to the screen. On the other hand, when the control unit 130 determines that the display position (virtual image position) of the HUD information needs to be adjusted in a state where the plane mirror is close to the screen, the plane mirror distance adjustment unit 140 adjusts The motor MT1 is driven to move the plane mirror away from the screen.

At this time, the moving distance (variation distance) of the plane mirror can be stored in advance in the storage unit 120 in the form of a look-up table.

However, when the planar mirror is moved close to or away from the screen as described above, the reflection angle of the plane mirror must be adjusted so that the center of the light direction toward the aspheric mirror is not changed by being reflected by the plane mirror.

Accordingly, the controller 130 calculates the angle of reflection for adjusting the plane mirror according to the moving distance (variation distance) of the plane mirror, and controls the plane mirror angle adjuster 150.

The plane mirror angle adjuster 150 drives the second motor MT2 that adjusts the angle of reflection of the plane mirror under the control of the controller 130. [

For example, when the plane mirror is farthest from the screen, the virtual image forming position becomes the maximum distance, and the virtual image forming position becomes shorter when the plane mirror is moved closer to the screen. And when the plane mirror is moved closest to the screen, the image phase position is shortened to the maximum. As described above, the reflection angle of the plane mirror must be adjusted so that the center of the light direction reflected by the plane mirror and directed to the aspherical mirror does not change as the plane mirror moves away from or approaches the screen.

Accordingly, in the present embodiment, as the plane mirror moves close to or away from the screen, the control unit 130 adjusts the reflection angle of the plane mirror through the plane mirror angle adjusting unit 150 corresponding to the moving distance Adjust. At this time, the reflection angle of the plane mirror to be adjusted according to the movement distance (variation distance) may be stored in advance in the storage unit 120 in the form of a look-up table.

However, in this embodiment, the controller 130 can adjust either the distance of the plane mirror (i.e., the distance from the screen to the plane mirror) and the reflection angle of the plane mirror corresponding to the eye level of the driver.

3 is a flowchart illustrating a method of controlling a head-up display according to an exemplary embodiment of the present invention.

As shown in FIG. 3, the controller 130 recognizes the driver's face (face) through the eye-level sensing unit 110 (S101) and senses the eye level of the driver (S102).

At this time, the ceiling of the vehicle is preferable as a criterion for detecting the eye level.

That is, in this embodiment, the distance from the vehicle ceiling to the eyes of the driver is referred to as eye level. The eye level sensing unit 110 may sense a driver's eye using a camera, an infrared sensor, or the like.

At this time, the eye level (that is, the distance from the vehicle ceiling to the driver ' s eye) is determined by the angle at which the eye level sensing unit 110 faces a predetermined point (i.e., a reference point for angle measurement) The eye level can be calculated by forming a virtual triangle using information on the angle and distance (i.e., the distance from the eye level sensing unit to the specific point of the ceiling and the distance from the eye level sensing unit to the driver ' s eye).

At this time, the eye level sensing unit 110 may be rotated (for example, up-down rotation, left-right rotation) for the angle detection.

The eye level information may be calculated by the eye level sensing unit 110 and output to the controller 130. The eye level information may be output from the controller 130 based on information sensed by the eye level sensing unit 110 130) may be calculated.

When the eye level of the driver is calculated as described above, the controller 130 calculates the distance from the screen to the plane mirror corresponding to the detected eye level, in order to display the HUD information at the most appropriate position and angle corresponding to the driver's eye level (S103).

At this time, information on the display angle and position of the most appropriate HUD information corresponding to the driver's eye level can be stored in the storage unit 120 in the form of a look-up table.

Information on the display angle and position of the most appropriate HUD information can be detected based on experiments.

For example, when it is determined that it is necessary to shorten the display position (virtual imaging position) of the HUD information corresponding to the driver's eye level, the control unit 130 moves the plane mirror close to the screen. On the other hand, when it is determined that it is necessary to adjust the display position (virtual imaging position) of the HUD information to correspond to the eye level of the driver while the plane mirror is close to the screen, the controller 130 moves the plane mirror away from the screen .

At this time, the moving distance (variation distance) of the plane mirror can be stored in advance in the storage unit 120 in the form of a look-up table.

Next, the controller 130 adjusts the angle of reflection of the plane mirror corresponding to the adjusted distance (variation distance) of the plane mirror (S104).

That is, when the plane mirror is moved close to or away from the screen, the reflection angle of the plane mirror is adjusted so that the center of the light direction reflected by the plane mirror does not change.

At this time, the reflection angle of the plane mirror to be adjusted according to the adjusted distance (variation distance) of the plane mirror can be stored in advance in the storage unit 120 in the form of a look-up table.

As described above, the present embodiment adjusts the mechanism of the head-up display according to the driver's eye level, thereby adjusting the image position of the virtual image so as to increase the visibility and convenience of the driver's HUD information.

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 embodiments, but, on the contrary, I will understand the point. Accordingly, the technical scope of the present invention should be defined by the following claims.

110: eye level sensing unit 120: storage unit
130: control unit MT1: first motor
MT2: second motor 140: plane mirror distance adjustment section
150: plane mirror angle adjustment section

Claims (14)

An eye level sensing unit for recognizing the face of the driver to detect the eyes for calculating the driver's eye level; And
And a controller for adjusting a display position and a display angle of HUD (Head Up Display) information corresponding to the eye level of the driver,
Wherein,
An eye level detector for detecting an angle and a distance from a sensor of the eye level sensor to a predetermined predetermined point of the vehicle ceiling and an angle and a distance from the sensor of the eye level sensor to a driver ' s eye, The distance from the predetermined point to the driver ' s eye is calculated,
A sensor of the eye level sensing unit, a predetermined point of the vehicle ceiling, and a virtual triangle having vertices of eyes of the driver,
And calculates the distance from a predetermined point of the vehicle ceiling to a driver's eye at the eye level of the driver in the virtual triangle.
The apparatus of claim 1,
In order to adjust the display position and the display angle of the HUD information corresponding to the eye level of the driver,
And adjusts a distance from the screen on which the HUD information is output to a plane mirror that reflects the HUD information.
3. The apparatus of claim 2,
Wherein the motor is used to move the flat mirror away from or close to the screen.
3. The method of claim 2,
Wherein the distance for moving the plane mirror is stored in advance in the form of a look-up table in correspondence with the eye level of the driver.
3. The apparatus of claim 2,
When the plane mirror is moved close to or away from the screen,
And adjusts the reflection angle of the plane mirror so that the center of the HUD information reflected by the plane mirror is changed according to the adjustment distance and is directed to the aspherical mirror.
6. The method of claim 5,
Wherein the reflection angle of the plane mirror to be adjusted according to the moving distance of the plane mirror is stored in advance in the form of a look-up table.
delete delete The eye-level detecting apparatus according to claim 1,
And wherein the head-up display controller is rotatable up and down and left and right at an installed position.
The control unit recognizing the face of the driver through the eye level sensing unit and detecting eyes for eye level calculation; And
And adjusting the display position and display angle of HUD (Head Up Display) information corresponding to the driver's eye level,
Wherein,
An eye level detector for detecting an angle and a distance from a sensor of the eye level sensor to a predetermined predetermined point of the vehicle ceiling and an angle and a distance from the sensor of the eye level sensor to a driver ' s eye, The distance from the predetermined point to the driver ' s eye is calculated,
A sensor of the eye level sensing unit, a predetermined point of the vehicle ceiling, and a virtual triangle having vertices of eyes of the driver,
Wherein a distance from a predetermined specific point of the vehicle ceiling to the driver ' s eye in the virtual triangle is calculated as an eye level of the driver.
11. The method of claim 10,
In the step of adjusting the display position and the display angle of the HUD information,
Wherein,
Wherein the display position of the HUD information is adjusted in accordance with the eye level of the driver by adjusting a distance from the screen on which the HUD information is output to a plane mirror reflecting the HUD information.
12. The apparatus according to claim 11,
Using a motor to move the plane mirror away or close to the screen,
Wherein a distance for moving the plane mirror corresponding to an eye level of the driver is stored in advance in a storage unit in the form of a look-up table.
11. The method of claim 10,
In order to prevent the center of the HUD information reflected by the plane mirror and directed to the aspherical mirror from changing when the plane mirror is moved close to or away from the screen,
And adjusting the reflection angle of the plane mirror according to the movement distance of the plane mirror.
14. The apparatus of claim 13,
Adjusting a reflection angle of the plane mirror using a motor,
Wherein the reflection angle of the plane mirror to be adjusted according to the moving distance of the plane mirror is stored in advance in the form of a look-up table.
KR1020150161272A 2015-11-17 2015-11-17 Apparatus for controlling head-up display and method thereof KR101806466B1 (en)

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Publication number Priority date Publication date Assignee Title
KR102090972B1 (en) * 2018-07-28 2020-03-19 정진관 Prism channel box
JP7367525B2 (en) * 2019-12-26 2023-10-24 株式会社リコー Display devices, display systems and mobile objects
CN113552905A (en) * 2021-06-22 2021-10-26 歌尔光学科技有限公司 Position adjusting method and system for vehicle-mounted HUD

Citations (2)

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Publication number Priority date Publication date Assignee Title
JP2001116841A (en) * 1991-04-15 2001-04-27 Mitsubishi Electric Corp Occupant detector
JP2009288388A (en) * 2008-05-28 2009-12-10 Nippon Seiki Co Ltd Display device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001116841A (en) * 1991-04-15 2001-04-27 Mitsubishi Electric Corp Occupant detector
JP2009288388A (en) * 2008-05-28 2009-12-10 Nippon Seiki Co Ltd Display device

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