CN210149251U

CN210149251U - Disconnect-type AR-HUD system with rotation function

Info

Publication number: CN210149251U
Application number: CN201920743035.2U
Authority: CN
Inventors: 罗雪; 刘朝阳; 王淑琴; 郑红丽; 厉健峰; 张彤; 石磊
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2020-03-17
Anticipated expiration: 2029-05-22

Abstract

The utility model relates to a separate AR-HUD system with rotation function, which comprises an AR-HUD display and an AR-HUD display controller; the AR-HUD display is fixed at the position of an instrument board beam between an instrument steering wheel and a front wall metal plate, and an image picture generated by an image source of the AR-HUD display is projected onto a windshield; the AR-HUD display controller is fixed at a metal plate position below the instrument board beam, and the video data LVDS interface of the AR-HUD display controller is connected with the AR-HUD display through a wire harness. The utility model provides a with the structural design of display and controller separation, can effectively reduce the occupation space of display, because the position relatively fixed of display, and the position space of fixed department is limited, so reduce the occupation space of display and can effectively solve the restricted problem in instrument board below space.

Description

Disconnect-type AR-HUD system with rotation function

Technical Field

The utility model relates to a field is driven to on-vehicle new line display technique and intelligence, especially relates to a disconnect-type AR-HUD system with rotation function, and this system divide into AR-HUD display and AR-HUD display controller two parts.

Background

The augmented reality head-up display system is AR-HUD for short, and key information such as navigation, ADAS function, central control instrument information and intelligent entertainment required by intelligent travel are displayed on a front windshield in real time by means of AR technology. The user can observe prompt information fused with actual road conditions through the windshield display area, wherein the prompt information comprises ground-attached navigation information, front collision early warning information, lane keeping, constant-speed cruising and the like. And the ADAS information and the road condition in front are superposed in a virtual-real mode, so that more visual ADAS functional experience than sound, vibration and the like is provided in a visual mode. The perception and decision process of the automatic driving system is visualized, the information of front obstacles captured by an intelligent camera, a radar, a multifunctional sensor and the like is accurately fused on a front road through the special optical design and the imaging principle in the AR-HUD system, friendly conversation is carried out with an automobile user, and the method is favorable for establishing trust of the user on the automatic driving system.

With the increasing maturity of the automatic driving technology, the AR-HUD is developing in a direction of establishing close connection with ADAS, GPS map data, WIFI, vehicle information, and the like. The more fully functional the AR-HUD display is, the more helpful it helps the driver to establish confidence in the autopilot function, the greater the need for coverage of the road ahead of the driver. The display picture is fixed by the reversibility theorem of light, and the display picture is reflected back to the concave mirror of the light machine through the front windshield, so that the size of the concave mirror of the light machine can be deduced to be correspondingly increased. Along with the gradual improvement of the electrification and intelligentization level of the automobile, the whole automobile carries more and more electrical elements, so that the space layout of an instrument desk in front of an automobile steering wheel is very tense, and the complete volume requirements of an AR-HUD system light path and electrical components are difficult to accommodate.

Disclosure of Invention

The utility model provides a disconnect-type AR-HUD system with rotation function, the limited difficult problem of spatial layout of steering wheel the place ahead instrument desk can be solved to this system, can realize better formation of image effect in limited space.

In order to solve the technical problem, the utility model relates to a separate AR-HUD system with rotation function, which comprises an AR-HUD display and an AR-HUD display controller; the AR-HUD display is fixed at the position of an instrument board beam between an instrument steering wheel and a front wall metal plate, and an image picture generated by an image source of the AR-HUD display is projected onto a windshield; the AR-HUD display controller is fixed at a metal plate position below the instrument board beam, and the video data LVDS interface of the AR-HUD display controller is connected with the AR-HUD display through a wire harness.

The AR-HUD display comprises a large reflector, an LED backlight source, a TFT liquid crystal display module, a small reflector, an optical machine shell and a dustproof membrane; the large reflector, the LED backlight source, the TFT liquid crystal display module and the small reflector are all fixedly arranged in the optical machine shell, and the dustproof membrane is arranged at the top of the optical machine shell; the optical machine shell is fixedly connected with the instrument board beam; the TFT liquid crystal display module is connected with a video data LVDS interface of the AR-HUD controller through a wire harness; light emitted by an image source generated by the LED backlight source and the TFT liquid crystal display module is firstly reflected to the large reflector through the small reflector, then reflected by the large reflector and finally projected to the windshield after penetrating through the dustproof membrane.

The big reflecting mirror adopts a concave mirror, and the small reflecting mirror adopts a plane mirror.

The AR-HUD display further comprises a rotating device; the rotating device is arranged inside the optical machine shell and comprises a stepping motor and a motor fixing seat; the stepping motor is arranged on the motor fixing seat through a fixing bolt, and a rotating shaft of the stepping motor is connected with the large reflector through a connecting rod to control the large reflector to swing; the motor fixing seat is fixedly connected with the optical machine shell.

A left side fixing support and a right side fixing support are respectively fixed on the left side wall and the right side wall of the optical machine shell; the left side fixed bolster and the right side fixed bolster pass through bolt and instrument board crossbeam support fixed connection, and instrument board crossbeam support is fixed on the instrument board crossbeam.

The left side fixed bolster and the right side fixed bolster bottom be fixed with spacing post in left side and the spacing post in right side respectively, the spacing post in left side and the spacing post in right side insert two reservation through-holes of corresponding position on the instrument board crossbeam support respectively.

The bottom of the optical machine shell can be also provided with a radiator.

The AR-HUD controller comprises a controller circuit board, a controller external port and a controller shell; the controller circuit board is arranged at the top of the controller shell; the external port of the controller comprises a power signal interface, an Ethernet communication interface, a video data LVDS interface and a CAN communication interface; the lower four corners of the controller shell are integrally connected with the controller fixing supports, and the controller shell is arranged at the metal plate position below the instrument board beam through the four controller fixing supports and the bolts.

When being in normal operating condition, TFT liquid crystal display module receives AR-HUD controller's video data, light is launched by the image source that LED backlight source and TFT liquid crystal display module produced, light takes place the reflection through little speculum earlier, reflect to the position at big speculum place, then take place the secondary reflection, pass dustproof diaphragm, reflect to windshield's position, it gets into people's eye to reflect once more in windshield department, will see the position formation an enlarged virtual image about 7.5m in the plantago in side in driver's position, make the driver need not look at instrument or host computer with the low head, also can acquire the important information of driving in-process, promote driving safety.

The utility model discloses possess following beneficial effect:

the utility model provides a with the structural design of display and controller separation, can effectively reduce the occupation space of display, because the position relatively fixed of display, and the position space of fixed department is limited, so reduce the occupation space of display and can effectively alleviate the restricted problem in instrument board below space. The arrangement position of the controller is not strictly limited, the size of the controller is relatively small, the arrangement position is relatively flexible, the condition that the wiring harness connection of the display and the controller meets the signal transmission stability is only required to be ensured, and the effective length is controlled within 1.5 m. The display and the controller are separately arranged, so that the possibility of carrying the system on different vehicle types is effectively promoted, the applicability of the system is improved, a solid foundation is laid for product platformization, and the economic cost of the product platformization is saved.

Through the inside rotating device of display, can satisfy the user and adjust the demand of AR-HUD display screen gradient, the user of being convenient for combines seat position and the suitable rotation angle of position of sitting adjustment, has improved user's experience, has increased driving comfort, the distortion of better correction AR-HUD formation of image picture.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic diagram of the structure of an AR-HUD display.

FIG. 2 is a schematic diagram of the structure of the AR-HUD display controller.

Fig. 3 is a schematic structural view of the rotating device.

Fig. 4 is a schematic structural diagram of the fixing device and the limiting device.

Detailed Description

The following description and examples are provided to clearly illustrate the detailed embodiments and technical means of the present invention. It is obvious that the following description contains only some embodiments, not all of them, and other embodiments obtained by persons skilled in the art without any inventive breakthrough will fall within the scope of protection of the present invention.

The utility model discloses a disconnect-type AR-HUD system with rotation function includes AR-HUD display, AR-HUD display controller, rotating device, fixing device and stop device.

As shown in fig. 1, the AR-HUD display is fixed at the position of an instrument panel beam between an instrument steering wheel and a front wall metal plate through a fixing device and a limiting device, and specifically comprises a large reflector 1, a high-brightness LED backlight source 2, a TFT liquid crystal display module 3, a small reflector 4, an optical machine housing 5 and a dustproof membrane 6; the large reflector 1, the LED backlight source 2, the TFT liquid crystal display module 3 and the small reflector 4 are all fixedly arranged in the optical machine shell 5, and the dustproof membrane 6 is arranged at the top of the optical machine shell 5; the optical engine shell 5 is fixedly connected with the instrument board beam through a fixing device and a limiting device; the LED backlight light source 2 and the TFT liquid crystal display module 3 are powered by a whole vehicle power supply; the TFT liquid crystal display module 3 is connected with a video data LVDS interface of the AR-HUD controller through a wire harness.

The large reflecting mirror 1 adopts a concave mirror, has the main function of amplifying an image, has high precision and high plane flatness, is made of PC or glass and can prevent fog; the TFT liquid crystal display module 3 is an image production unit, and each pixel point on the screen of the TFT liquid crystal display module can be independently and continuously controlled through a semiconductor switch device, so that the reaction speed of the liquid crystal display module can be improved, and the display color can be accurately controlled. The small reflector 4 adopts a plane mirror and mainly has the functions of changing the direction of a light path and increasing the object distance. The small reflector 4 and the large reflector 1 form an image projection system; the optical engine case 5 is used to fix internal structures such as an internal optical path system and a driver board. Dustproof membrane 6 can also effectively avoid dust and rainwater to get into the ray apparatus inside by the printing opacity, shelters from internals. The bottom of the optical machine shell 5 can be also provided with a radiator to provide a radiating function for the high-brightness LED backlight light source and the TFT liquid crystal display module.

The utility model discloses a TFT imaging technology, the light that is launched by the image source that LED backlight source 2 and TFT liquid crystal display module 3 produced is turned over through undersize speculum 4 and big speculum 1, and the windscreen 9 is thrown to after transmitting dustproof diaphragm 6 again, reflects people's eye 7 through windscreen 9. Because the image projection system has the functions of amplification and depth of field, the image picture 8 of the image source is shown at a position which is 7.5m away from the human eyes.

As shown in fig. 2, the AR-HUD display controller includes a controller circuit board 10, a controller external port 11, and a controller housing 12; the controller circuit board 10 is arranged on the top of the controller shell 12; the external port 11 of the controller comprises a power signal interface, an Ethernet communication interface, a video LVDS interface and a CAN communication interface, and is used for receiving a power signal from the vehicle body, receiving an Ethernet signal sent by a high-precision map and a CAN bus signal fused with an HAD, and transmitting a real-time processed image to the TFT liquid crystal display module 3 in the AR-HUD display through the video data LVDS interface. The four lower corners of the controller shell 12 are integrally connected with controller fixing supports 13, and the controller shell 12 is arranged at a metal plate position below an instrument board beam through the four controller fixing supports 13 and bolts; the arrangement position of the AR-HUD display controller has no strict requirement, and the arrangement position is only recommended to be not more than 1.5m for the length of a connecting wire harness, so that untimely transmission or signal loss caused by overlong wire harnesses in the signal transmission process is prevented.

As shown in fig. 3, the rotating device is disposed inside the optical machine housing 5, and mainly includes a stepping motor 14, a motor fixing seat 15, and a fixing bolt 16; the stepping motor 14 is installed on a motor fixing seat 15 through a fixing bolt 16, and the motor fixing seat 15 is fixedly connected with the optical machine shell 5; the stepping motor 14 is a core element for adjusting the inclination of an image picture, a rotating shaft of the stepping motor is connected with the large reflector 1 through the connecting rod 17, the large reflector 1 can be controlled to swing, the image picture 8 observed by human eyes rotates by +/-3 degrees leftwards and rightwards at the symmetrical center, the angle suitable for each user to be comfortable is found more easily, the tolerance in the installation process can be avoided, and the picture distortion is effectively prevented.

As shown in fig. 4, the fixing device and the limiting device mainly include a left fixing bracket 18, a right fixing bracket 19, a left limiting post 21 and a right limiting post; the left fixing support 18 and the right fixing support 19 are respectively fixed on the left side wall and the right side wall of the optical machine shell 5 and are respectively connected and fixed with an instrument board beam support 23 through two fixing bolts 20, and the instrument board beam support 23 is fixedly connected with an instrument board beam 22; the left limiting column 21 and the right limiting column are fixed at the bottoms of the left fixing support 18 and the right fixing support 19 respectively and located in the middle positions of the two fixing bolts 20, two through holes are reserved in positions, corresponding to the left limiting column 21 and the right limiting column, on the instrument board beam support 23, the left limiting column 21 and the right limiting column are inserted into the two reserved through holes in the instrument board beam support 23 respectively to determine the approximate position of the AR-HUD display in the installation process, and then the accurate position of the AR-HUD display is determined through the four fixing bolts 20.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims.

Claims

1. A separated AR-HUD system with a rotation function comprises an AR-HUD display and an AR-HUD display controller; the display is characterized in that the AR-HUD display is fixed at the position of an instrument board beam between an instrument steering wheel and a front wall metal plate, and an image picture generated by an image source is projected onto a windshield; the AR-HUD display controller is fixed at a metal plate position below the instrument board beam, and the video data LVDS interface of the AR-HUD display controller is connected with the AR-HUD display through a wire harness.

2. The separated AR-HUD system with rotation function according to claim 1, wherein said AR-HUD display comprises a large reflector (1), an LED backlight source (2), a TFT liquid crystal display module (3), a small reflector (4), an optical machine housing (5), a dustproof membrane (6); the large reflector (1), the LED backlight source (2), the TFT liquid crystal display module (3) and the small reflector (4) are all fixedly arranged in the optical machine shell (5), and the dustproof membrane (6) is arranged at the top of the optical machine shell (5); the optical machine shell (5) is fixedly connected with the instrument board beam; the TFT liquid crystal display module (3) is connected with a video data LVDS interface of the AR-HUD display controller through a wire harness; light emitted by an image source generated by the LED backlight light source (2) and the TFT liquid crystal display module (3) is firstly reflected to the large reflector (1) through the small reflector (4), then reflected by the large reflector (1), and finally projected to the windshield (9) after penetrating through the dustproof membrane (6).

3. The rotary split AR-HUD system according to claim 2, wherein the large mirror (1) is a concave mirror, and the small mirror (4) is a flat mirror.

4. The detachable AR-HUD system with rotation function according to claim 2, wherein said AR-HUD display further comprises a rotation device; the rotating device is arranged inside the optical machine shell (5) and comprises a stepping motor (14) and a motor fixing seat (15); the stepping motor (14) is arranged on the motor fixing seat (15) through a fixing bolt, and a rotating shaft of the stepping motor is connected with the large reflector (1) through a connecting rod (17) to control the large reflector (1) to swing; the motor fixing seat (15) is fixedly connected with the optical machine shell (5).

5. The split AR-HUD system with rotation function according to claim 2, wherein the left side wall and the right side wall of the opto-mechanical housing (5) are respectively fixed with a left side fixing bracket (18) and a right side fixing bracket (19); the left side fixing support (18) and the right side fixing support (19) are fixedly connected with an instrument board beam support (23) through bolts, and the instrument board beam support (23) is fixed on an instrument board beam (22).

6. The split AR-HUD system with rotation function as claimed in claim 5, wherein the left side fixing bracket (18) and the right side fixing bracket (19) are fixed with a left side limiting column (21) and a right side limiting column at the bottom respectively, and the left side limiting column (21) and the right side limiting column are inserted into two reserved through holes at corresponding positions on the instrument panel beam bracket (23) respectively.

7. The split AR-HUD system with rotation function according to claim 2, wherein the bottom of the opto-mechanical housing (5) is provided with a heat sink.

8. The split AR-HUD system with swivel function according to claim 1, wherein said AR-HUD controller comprises a controller circuit board (10), a controller external port (11), a controller housing (12); the controller circuit board (10) is arranged at the top of the controller shell (12); the external port (11) of the controller comprises a power signal interface, an Ethernet communication interface, a video data LVDS interface and a CAN communication interface; the four lower corners of the controller shell (12) are integrally connected with controller fixing supports (13), and the controller shell (12) is installed at a metal plate position below an instrument panel beam through the four controller fixing supports (13) and bolts.