CN113022591A - Vehicle-mounted head-up display device based on augmented reality - Google Patents
Vehicle-mounted head-up display device based on augmented reality Download PDFInfo
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- CN113022591A CN113022591A CN202110227868.5A CN202110227868A CN113022591A CN 113022591 A CN113022591 A CN 113022591A CN 202110227868 A CN202110227868 A CN 202110227868A CN 113022591 A CN113022591 A CN 113022591A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
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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
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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
- G02B27/0103—Head-up displays characterised by optical features comprising holographic elements
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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
- G02B27/10—Beam splitting or combining systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
- B60W2050/146—Display means
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Abstract
The present disclosure relates to an on-vehicle new line display device based on augmented reality, includes: the system comprises a driving auxiliary system, a navigation system, a vehicle-mounted central control system and a HUD optical display system; the driving assistance system comprises a plurality of cameras arranged on a vehicle body of the vehicle and is used for acquiring environmental information around the vehicle; the navigation system is used for acquiring map data and navigation route data; the vehicle-mounted central control system is connected to the driving assistance system and the navigation system, and is used for fusing and processing environmental information around the vehicle, the map data, the navigation route data and the speed information of the vehicle, generating video information fitting with a real environment in real time, and outputting the video information to the HUD optical display system; the HUD optical display system is used for projecting the video information to a real environment. Through the technical scheme, the real-time road environment outside the vehicle can be identified, and corresponding data information is displayed.
Description
Technical Field
The utility model relates to an augmented reality shows technical field, especially relates to an on-vehicle new line display device based on augmented reality.
Background
With the popularization of automobiles, the problem of traffic safety is receiving more and more attention. The automobile head-up display device (HUD) is a vision assistant driving system, which can provide key assistant driving information for a driver, project driving information into a virtual image, display the virtual image at a certain distance in front of the driver, and enable the driver to acquire information such as vehicle speed, oil quantity, real-time navigation and the like under a head-up state, thereby avoiding the blind area time generated by the driver due to the fact that the driver looks over driving information with a head down, reducing potential traffic accidents and ensuring driving safety. However, due to the limitation of technical level and cost, the vehicle-mounted HUD system has lower picture brightness and fuzzy display content, and an optical imaging system generally adopts an off-axis lens group optical system, so that the structure is complex, the size and the weight are larger, the development difficulty is high, and the production cost is higher.
Disclosure of Invention
For overcoming the problem that exists among the correlation technique, this disclosure provides a vehicle-mounted new line display based on augmented reality combines together car HUD technique and the optics display scheme of light wave guide among the augmented reality technique, can not only show appearance and navigation information, can also discern the real-time road environment outside the car to demonstrate corresponding data information.
According to a first aspect of the embodiments of the present disclosure, there is provided an augmented reality-based on-vehicle head-up display device, including: the system comprises a driving auxiliary system, a navigation system, a vehicle-mounted central control system and a HUD optical display system;
the driving assistance system comprises a plurality of cameras arranged on a vehicle body of the vehicle and is used for acquiring environmental information around the vehicle;
the navigation system is used for acquiring map data and navigation route data;
the vehicle-mounted central control system is connected to the driving assistance system and the navigation system, and is used for fusing and processing environmental information around the vehicle, the map data, the navigation route data and the speed information of the vehicle, generating video information fitting with a real environment in real time, and outputting the video information to the HUD optical display system;
the HUD optical display system is used for projecting the video information to a real environment.
In one embodiment, preferably, the HUD optical display system includes: the device comprises an optical machine, a vertical extended non-polarized array optical waveguide, a glass substrate and an outcoupling grating;
the optical machine is used for emitting collimated light to the vertically-expanded non-polarized array optical waveguide;
the vertically-expanded non-polarized array optical waveguide is adhered to the upper surface of the light input area of the glass substrate and is used for coupling light rays emitted by the light machine into the vertically-expanded non-polarized array optical waveguide, performing light ray expansion in the vertical direction and coupling out a plurality of light rays to the glass substrate;
the glass substrate is internally embedded with a total reflector, the total reflector is arranged under the vertical extended non-polarized array optical waveguide, the light coupled out from the vertical extended non-polarized array optical waveguide is coupled into the glass substrate after being reflected by the total reflector, and when the total reflection condition is met, the coupled-in light is transmitted forwards to the coupled-out grating in a total reflection mode;
the coupling-out grating is adhered to the upper surface of the light output area of the glass substrate and used for coupling out light transmitted to the coupling-out grating after being expanded in the horizontal direction to human eyes for imaging.
In one embodiment, preferably, the vertically-extended non-polarized array optical waveguide comprises a waveguide board substrate and a non-polarized beam splitting film array;
the non-polarization light splitting film array comprises a plurality of non-polarization light splitting film array substrates which are obliquely arranged from top to bottom along the vertical direction.
In one embodiment, preferably, the plurality of unpolarized light-splitting film array substrates are arranged in parallel at equal intervals, the interval between any two unpolarized light-splitting film array substrates is a preset interval, and an inclination angle between the unpolarized light-splitting film array substrates and the waveguide board substrate is a preset angle.
In one embodiment, preferably, the reflectance of the plurality of non-polarizing splitting film array substrates increases sequentially from top to bottom along the vertical direction.
In one embodiment, preferably, the light engine comprises a display source and a collimation system;
the display source is arranged on a main optical axis of the collimation system and used for loading and outputting an image;
the collimation system is arranged on the light emergent surface of the display source and used for collimating and correcting the image output by the display source and then enabling the image to enter the vertical expansion non-polarized array optical waveguide.
In one embodiment, preferably, the collimating system includes a biconcave lens, a biconvex lens, and a cemented lens composed of a biconvex lens and a plano-concave lens, which are arranged in this order.
In one embodiment, preferably, the outcoupling grating comprises a reflective volume holographic grating.
In one embodiment, preferably, different areas of the outcoupling grating have different diffraction efficiencies, wherein the diffraction efficiencies increase sequentially along the direction of propagation of the light.
In one embodiment, preferably, the video information comprises a prompt image or an alarm image.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
1) the invention combines the optical display scheme of the optical waveguide in the automobile HUD technology and the augmented reality technology, not only can display the instrument and navigation information, but also can identify the real-time road environment outside the automobile and display corresponding data information.
2) The optical imaging system of the AR-HUD adopts the array-holographic mixed optical waveguide optical display system to complete two-dimensional expansion of light, the optical machine part is more miniaturized and light-weighted, the whole structure of the optical system is simple and easy to process, and the production cost is lower.
3) The optical imaging system is integrally integrated on a glass substrate, four corners of the back of the glass substrate are provided with the adhesive, the optical imaging system can be conveniently carried and can be adhered to any position for optical display, and the use is flexible.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a schematic structural diagram illustrating an augmented reality-based in-vehicle head-up display device according to an exemplary embodiment.
Fig. 2 is a schematic diagram of a HUD optical display system according to an exemplary embodiment.
Fig. 3 is a schematic structural diagram of an optical engine in a HUD optical display system according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Fig. 1 is a schematic structural diagram illustrating an augmented reality-based in-vehicle head-up display device according to an exemplary embodiment.
As shown in fig. 1, an augmented reality-based on-vehicle heads-up display device according to the present invention includes: a driving assistance system 11, a navigation system 12, an in-vehicle center control system 13, and a HUD optical display system 14;
the driving assistance system 11 includes a plurality of cameras disposed on a body of the vehicle, and is configured to acquire environmental information around the vehicle;
the navigation system 12 is configured to obtain map data and navigation route data;
the vehicle-mounted central control system 13 is connected to the driving assistance system 11 and the navigation system 12, and is configured to perform data fusion and processing on the environment information around the vehicle, the map data, the navigation route data, and the speed information of the vehicle, generate video information in real time in accordance with a real environment, and output the video information to the HUD optical display system 14; the driving assistance system 11 and the navigation system 12 are connected and communicated with an on-vehicle central control system 13 through a network respectively.
The HUD optical display system 14 is configured to project the video information into a real environment. In one embodiment, preferably, the video information comprises a prompt image or an alarm image.
In this embodiment, will through HUD optical display system 14 in the suggestion or the virtual image of reporting to the police accuracy project reality environment, make the driver see the outer environmental information of car that has strengthened, greatly improved supplementary driving ability and driving safety, real-time, accuracy and stability to some modules can directly utilize the current hardware module of car, and the cost is lower.
As shown in FIG. 2, in one embodiment, the HUD optical display system 14 preferably includes: an optical machine 21, a vertical extended non-polarized array optical waveguide 22, a glass substrate 23 and a coupling grating 24;
the optical machine 21 is configured to emit collimated light to the vertically expanded non-polarized array optical waveguide 22;
the vertically-extended non-polarized array light guide 22 is attached to the upper surface of the light input area of the glass substrate 23, and is used for coupling light emitted by the light machine into the vertically-extended non-polarized array light guide, performing light extension in the vertical direction, and coupling out multiple beams of light to the glass substrate;
the glass substrate 23 is embedded with a total reflection mirror 25, the total reflection mirror is arranged under the vertically extended non-polarized array optical waveguide 22, the light coupled out from the vertically extended non-polarized array optical waveguide 22 is reflected by the total reflection mirror 25 and then coupled into the glass substrate 23, and when the total reflection condition is met, the coupled-in light is transmitted forward to the coupling grating 24 in a total reflection manner;
the coupling grating 24 is adhered to the upper surface of the light output area of the glass substrate 23, and is used for coupling out the light transmitted to the coupling grating after the light in the horizontal direction is expanded to the human eye for imaging.
In one embodiment, preferably, the vertically extended unpolarized array optical waveguide 22 comprises a waveguide plate substrate 221 and an array of unpolarized splitting films 222;
the non-polarizing beam splitting film array 222 includes a plurality of non-polarizing beam splitting film array substrates arranged obliquely from top to bottom in a vertical direction. Specifically, the non-polarizing beam splitting film array includes five non-polarizing beam splitting film array substrates arranged obliquely from top to bottom in the vertical direction.
In one embodiment, preferably, the plurality of unpolarized light-splitting film array substrates are arranged in parallel at equal intervals, the interval between any two unpolarized light-splitting film array substrates is a preset interval, and an inclination angle between the unpolarized light-splitting film array substrates and the waveguide board substrate is a preset angle. The plurality of the non-polarization light splitting film array substrates are arranged at equal intervals, the interval is 4.26mm, the inclination angle between the non-polarization light splitting film array substrates and the vertically expanded non-polarization array optical waveguide plate substrate can be 25 degrees, and the thickness of the vertically expanded non-polarization array optical waveguide plate substrate can be 2 mm.
In one embodiment, preferably, the reflectance of the plurality of non-polarizing splitting film array substrates increases sequentially from top to bottom along the vertical direction. For example 1/5, 1/4, 1/3, 1/2, and 1, respectively. Through the optimized design of the film system, the non-polarized light splitting film array substrates can simultaneously carry out light outcoupling on S-polarized light waves (polarization vectors are perpendicular to the plane) and P-polarized light waves (polarization vectors are in the plane).
As shown in fig. 3, in one embodiment, the light engine 21 preferably includes a display source 211 and a collimation system 212;
the display source 211 is disposed on a main optical axis of the collimating system, and is configured to load and output an image; the display source is a Micro-LED display screen with the characteristics of high brightness, high contrast and low power consumption.
The collimation system 212 is disposed on the light emitting surface of the display source, and configured to collimate and correct an image output by the display source, and then, the collimated and corrected image is incident into the vertically-extended non-polarized array optical waveguide.
In one embodiment, the collimating system 212 preferably includes a biconcave lens 31, a biconvex lens 32, and a cemented lens 33 composed of a biconvex lens and a plano-concave lens, which are arranged in this order.
In one embodiment, the outcoupling grating 24 preferably comprises a reflective volume holographic grating.
In one embodiment, preferably, the different areas of the coupling grating have different diffraction efficiencies, wherein the diffraction efficiencies are sequentially increased along the light propagation direction, so that the emergent light beams with the same light intensity can be obtained, and a display image with uniform intensity can be obtained.
In the embodiment of the invention, the automobile HUD technology is combined with the optical display scheme of the optical waveguide in the augmented reality technology, so that not only can the instrument and the navigation information be displayed, but also the real-time road environment outside the automobile can be identified, and corresponding data information can be displayed. The optical imaging system of the HUD adopts the array-holographic mixed optical waveguide optical display system to complete two-dimensional expansion of light, the optical machine part is more miniaturized and light-weighted, the whole structure of the optical system is simple and easy to process, and the production cost is lower. And the whole integrated on a glass substrate of optical imaging system to set up on four angles in the glass substrate back and paste, optical imaging system alright conveniently carry and can paste and be used for optical display in optional position, use in a flexible way.
It is further understood that the use of "a plurality" in this disclosure means two or more, as other terms are analogous. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. The singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It will be further understood that the terms "first," "second," and the like are used to describe various information and that such information should not be limited by these terms. These terms are only used to distinguish one type of information from another and do not denote a particular order or importance. Indeed, the terms "first," "second," and the like are fully interchangeable. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure.
It is further to be understood that while operations are depicted in the drawings in a particular order, this is not to be understood as requiring that such operations be performed in the particular order shown or in serial order, or that all illustrated operations be performed, to achieve desirable results. In certain environments, multitasking and parallel processing may be advantageous.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (10)
1. The utility model provides an on-vehicle new line display device based on augmented reality which characterized in that includes: the system comprises a driving auxiliary system, a navigation system, a vehicle-mounted central control system and a HUD optical display system;
the driving assistance system comprises a plurality of cameras arranged on a vehicle body of the vehicle and is used for acquiring environmental information around the vehicle;
the navigation system is used for acquiring map data and navigation route data;
the vehicle-mounted central control system is connected to the driving assistance system and the navigation system, and is used for fusing and processing environmental information around the vehicle, the map data, the navigation route data and the speed information of the vehicle, generating video information fitting with a real environment in real time, and outputting the video information to the HUD optical display system;
the HUD optical display system is used for projecting the video information to a real environment.
2. The on-board heads-up display device of claim 1, wherein the HUD optical display system comprises: the device comprises an optical machine, a vertical extended non-polarized array optical waveguide, a glass substrate and an outcoupling grating;
the optical machine is used for emitting collimated light to the vertically-expanded non-polarized array optical waveguide;
the vertically-expanded non-polarized array optical waveguide is adhered to the upper surface of the light input area of the glass substrate and is used for coupling light rays emitted by the light machine into the vertically-expanded non-polarized array optical waveguide, performing light ray expansion in the vertical direction and coupling out a plurality of light rays to the glass substrate;
the glass substrate is internally embedded with a total reflector, the total reflector is arranged under the vertical extended non-polarized array optical waveguide, the light coupled out from the vertical extended non-polarized array optical waveguide is coupled into the glass substrate after being reflected by the total reflector, and when the total reflection condition is met, the coupled-in light is transmitted forwards to the coupled-out grating in a total reflection mode;
the coupling-out grating is adhered to the upper surface of the light output area of the glass substrate and used for coupling out light transmitted to the coupling-out grating after being expanded in the horizontal direction to human eyes for imaging.
3. The vehicle-mounted head-up display device according to claim 2, wherein the vertically-extended unpolarized arrayed optical waveguide comprises a waveguide plate substrate and an array of unpolarized splitting films;
the non-polarization light splitting film array comprises a plurality of non-polarization light splitting film array substrates which are obliquely arranged from top to bottom along the vertical direction.
4. The vehicle-mounted head-up display device according to claim 3, wherein the plurality of non-polarizing beam splitting film array substrates are arranged in parallel at equal intervals, the interval between any two non-polarizing beam splitting film array substrates is a preset interval, and the inclination angle between the non-polarizing beam splitting film array substrates and the waveguide plate substrate is a preset angle.
5. The vehicle-mounted head-up display device according to claim 3, wherein the reflectivity of the plurality of non-polarizing beam splitting film array substrates increases sequentially from top to bottom along the vertical direction.
6. The vehicle-mounted heads-up display device of claim 3 wherein the light engine comprises a display source and a collimating system;
the display source is arranged on a main optical axis of the collimation system and used for loading and outputting an image;
the collimation system is arranged on the light emergent surface of the display source and used for collimating and correcting the image output by the display source and then enabling the image to enter the vertical expansion non-polarized array optical waveguide.
7. The vehicle-mounted head-up display device according to claim 6, wherein the collimating system comprises a biconcave lens, a biconvex lens, and a cemented lens consisting of a biconvex lens and a plano-concave lens, which are arranged in this order.
8. The vehicle-mounted heads-up display device of claim 2 wherein the out-coupling grating comprises a reflective volume holographic grating.
9. The vehicle-mounted head-up display device according to claim 2, wherein diffraction efficiencies of different areas of the coupling grating are different, wherein the diffraction efficiencies are sequentially increased along the light propagation direction.
10. The vehicle head-up display device according to any one of claims 1 to 9, wherein the video information includes a prompt image or an alarm image.
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| CN113703168A (en) * | 2021-09-09 | 2021-11-26 | 业成科技（成都）有限公司 | Head-up display module and vehicle |
| CN114684018A (en) * | 2022-03-29 | 2022-07-01 | 润芯微科技(江苏)有限公司 | Method for realizing AR-HUD system |
| CN115171412A (en) * | 2022-08-09 | 2022-10-11 | 阿波罗智联(北京)科技有限公司 | Method, system and device for displaying vehicle running state |
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