1. A scene-following holographic projection system, comprising:

the road condition recognition unit (1) is arranged on a front windshield, and the road condition recognition unit (1) is used for acquiring image signals of road conditions outside a vehicle and an environment in front of the vehicle, processing the image signals and converting the image signals into digital signals;

an eyeball identification unit (2) arranged in front of the driver, wherein the eyeball identification unit (2) is used for measuring the head deflection angle of the driver and tracking and detecting the eyeball position of the driver;

the projection unit (3) is installed in front of the center console, and the projection unit (3) automatically generates a projection virtual image which forms an included angle with the vertical direction in front of the vehicle through the windshield by receiving the digital signal sent by the road condition identification unit (1);

the projection unit (3) receives the eye position of the driver sent by the eyeball identification unit (2), calculates the offset of the eyeball vision of the driver according to a preset standard viewing angle, and adjusts the position of the projected virtual image according to the offset.

2. The scene-following holographic projection system and the automobile thereof according to claim 1, wherein: the road condition identification unit (1) is composed of a camera group and a controller, the camera group is used for identifying road conditions outside the vehicle and barrier information, and the controller carries out analysis, judgment and early warning according to the identified information.

3. A scene-following holographic projection system according to claim 2, characterized in that: a database is integrated in the controller, a plurality of kinds of obstacle information are stored in the database, and the controller compares the identification information with the preset obstacle information in the database for analysis to determine the types of the obstacles; the controller sends the analyzed obstacle type, position and size information to the projection unit (3).

4. A scene-following holographic projection system according to claim 2, characterized in that: the camera group is an ADAS camera and is arranged on the middle upper part of the front windshield.

5. The scene-following holographic projection system and the automobile thereof according to claim 1, wherein: the eyeball identification unit (2) is composed of a camera module and a second controller, the camera module is arranged in front of a driver and shoots the driver, and the second controller identifies the position of the eyeball of the driver through the shot image and sends the position information to the projection unit (3) in a coordinate mode.

6. A scene-following holographic projection system according to claim 2 or 5, characterized in that: the refraction point projected on the front windshield by the projection unit (3) is above the connecting line of the eyeball and the obstacle.

7. The scene-following holographic projection system of claim 1, wherein: the gap between the projection unit (3) and the information sent by the road condition identification unit (1) and the eyeball identification unit (2) is 50mS, and the projection virtual image is updated every 50 mS.

8. The scene-following holographic projection system of claim 7, wherein: an alarm module is integrated in the projection unit (3), and when the currently updated barrier projection virtual image is compared with the previous projection virtual image and the lower part of the barrier projection virtual image is shielded, the alarm module gives an alarm in a picture flashing mode.

9. The scene-following holographic projection system of claim 1, wherein: the road condition identification unit (1) is internally integrated with a light sensor, and the projection unit (3) adjusts and displays projection brightness by receiving light information sent by the light sensor.

A car characterized by comprising a scene-following holographic projection system according to any of claims 1 to 9.

Background

With the rapid development of automobile electronic products, HUD products are gradually applied to automobiles, and necessary driving information can be displayed in actual traffic conditions within the sight range of drivers; by the HUD technology, a driver can expand and enhance the perception of the driver on the driving environment, and the driving safety and the technological perception are improved; the driver does not have to adjust his eyes between viewing the road at a distance and the meter at a close distance, and eye fatigue is avoided.

Most of display interfaces of HUDs (head-up displays) in the market are fixed displays, and the design of the display interfaces is designed according to standard body types and standard driving sitting postures, because the body types and the driving sitting postures of different drivers are different, and the positions of eye ellipses are different, images displayed by the HUDs are emitted at specific angles and cannot be changed, and the HUDs are different in display interfaces seen by different drivers; the HUD technique projects virtual road condition information on a front windshield, and a virtual image seen by a driver overlaps with an actual road condition to realize a warning effect, but when a person moves the head left and right or a vehicle type performs a steering operation, the overlapping effect of the virtual image and the actual road condition disappears, and the driver may make misjudgment to cause an accident.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a scene-following holographic projection system and an automobile thereof, so as to solve the existing problems.

In order to achieve the purpose, the invention is realized by the following technical scheme: a scene-following holographic projection system, comprising: the road condition identification unit is arranged on a front windshield and is used for acquiring image signals of road conditions outside a vehicle and the environment in front of the vehicle, processing the image signals and converting the image signals into digital signals; the eyeball identification unit is arranged in front of the driver and used for measuring the head deflection angle of the driver and tracking and detecting the eyeball position of the driver; the projection unit is arranged in front of the center console and automatically generates a projection virtual image which forms an included angle with the vertical direction in front of the vehicle through the windshield by receiving the digital signal sent by the road condition identification unit; the projection unit receives the eye position of the driver sent by the eyeball identification unit, calculates the offset of the eyeball vision field of the driver by taking a preset standard viewing angle as a basis, and adjusts the position of the projection virtual image by taking the offset as the basis.

Furthermore, the road condition identification unit is composed of a camera group and a controller, the camera group is used for identifying road conditions outside the vehicle and barrier information, and the controller carries out analysis, judgment and early warning according to the identified information.

Further, a database is integrated in the controller, a plurality of kinds of obstacle information are stored in the database, and the controller compares the identification information with preset obstacle information in the database for analysis to determine the kinds of obstacles; and the controller sends the analyzed obstacle type, position and size information to the projection unit.

Furthermore, the camera group is an ADAS camera and is arranged at the middle upper part of the front windshield.

Furthermore, the eyeball identification unit is composed of a camera module and a second controller, the camera module is arranged in front of a driver and shoots the driver, and the second controller identifies the position of the eyeball of the driver through the shot image and sends the position information to the projection unit in a coordinate mode.

Further, the refraction point projected onto the front windshield by the projection unit is above the connecting line of the eyeball and the obstacle.

Further, the gap between the projection unit receiving the information sent by the road condition identification unit and the eyeball identification unit is 50mS, and the projection virtual image is updated every 50 mS.

Furthermore, an alarm module is integrated in the projection unit, and when the currently updated barrier projection virtual image is compared with the previous projection virtual image and the lower part of the barrier projection virtual image is shielded, the alarm module provides a picture flashing mode for alarm.

Furthermore, a light sensor is integrated in the road condition identification unit, and the projection unit adjusts and displays projection brightness by receiving light information sent by the light sensor.

The invention has the beneficial effects that: the invention judges the visual field area by detecting the eyeball position of the driver in real time, and then adjusts the position of the projected virtual image to ensure that the virtual image barrier seen by the driver and the actual barrier are always in a superposed state, thereby increasing the reliability and accuracy of the early warning system, reducing the accident rate and protecting the life and property safety of the driver and passengers.

The invention also provides an automobile which comprises the scene-following holographic projection system.

Compared with the prior art, the automobile and the scene-following holographic projection system have the same advantages, and are not described in detail herein.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic view of a scene-following holographic projection system and a car thereof according to the present invention;

FIG. 2 is a schematic view of a scene-following holographic projection system and its automobile according to the present invention;

FIG. 3 is a partial enlarged view of a scene-following holographic projection system and an automobile thereof at location A in accordance with the present invention;

FIG. 4 is a network topology diagram of a scene-following holographic projection system and its automobile according to the present invention.

In the figure: a road condition identification unit-1, an eyeball identification unit-2 and a projection unit-3.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Referring to fig. 1-4, the present invention provides a scene-following holographic projection system, comprising: the automobile front windshield road condition recognition system comprises a road condition recognition unit 1 arranged on a front windshield, wherein the road condition recognition unit 1 is used for acquiring image signals of an automobile exterior road condition and an automobile front environment, processing the image signals and converting the image signals into digital signals; an eyeball identification unit 2 arranged in front of the driver, wherein the eyeball identification unit 2 is used for measuring the head deflection angle of the driver and tracking and detecting the eyeball position of the driver; the projection unit 3 is arranged in front of the center console, and the projection unit 3 automatically generates a projection virtual image which forms an included angle with the vertical direction in front of the vehicle through a windshield by receiving the digital signal sent by the road condition identification unit 1; the projection unit 3 receives the eye position of the driver sent by the eyeball identification unit 2, calculates the offset of the eyeball vision field of the driver according to a preset standard viewing angle, and adjusts the position of a projection virtual image according to the offset; the road condition identification unit 1 comprises a camera group and a controller, the camera group is used for identifying road conditions outside the vehicle and barrier information, and the controller carries out analysis, judgment and early warning according to the identified information; a database is integrated in the controller, a plurality of kinds of obstacle information are stored in the database, and the controller compares the identification information with the preset obstacle information in the database for analysis to determine the types of the obstacles; the controller sends the analyzed type, position and size information of the obstacle to the projection unit 3; the camera group is an ADAS camera and is arranged at the middle upper part of the front windshield; the eyeball identification unit 2 consists of a camera module and a second controller, the camera module is arranged in front of a driver and shoots the driver, and the second controller identifies the position of the eyeball of the driver through the shot image and sends the position information to the projection unit 3 in a coordinate mode; the refraction point projected onto the front windshield by the projection unit 3 is above the connecting line of the eyeball and the obstacle; the gap between the projection unit 3 receiving the information sent by the road condition identification unit 1 and the eyeball identification unit 2 is 50mS, and the projection virtual image is updated every 50 mS; an alarm module is integrated in the projection unit 3, and when the current updated barrier projection virtual image is compared with the previous projection virtual image and the lower part of the barrier projection virtual image is shielded, the alarm module provides a picture flashing mode for alarm; the road condition identification unit 1 is internally integrated with a light sensor, and the projection unit 3 adjusts and displays projection brightness by receiving light information sent by the light sensor.

The working principle is as follows: the road condition identification unit 1 is used for identifying road condition (such as traffic lights, traffic signs, lane information and the like) and obstacle (such as stones, branches, cartons, cats, dogs and the like) information outside the vehicle, judging whether road condition early warning is given or not according to the identified road condition information, if the early warning is needed, identifying an image of the obstacle by a controller, comparing the image with the preset obstacle in a database for analysis, and determining the types of the obstacle (such as stones, branches, cartons, cats, dogs and the like); the controller captures the position of an obstacle in real time and sends the position information of the obstacle to the projection unit in a coordinate mode, and the controller identifies the size information of the obstacle and sends the size information to the projection unit; the eyeball identification unit 2 identifies the position of the eyeball of the driver and sends the delay position information to the projection unit in a coordinate mode, and the projection unit 3 automatically generates a virtual image containing the type of the obstacle, the size of the obstacle and the position of the obstacle according to the type, the size and the coordinate information of the obstacle sent by the road condition identification unit; the projection unit controller calculates the positions of elements of the projected image through a preset program according to the coordinates of the eyeball of the driver, which are sent by the eyeball identification unit, and the comprehensive information such as the virtual image, the position of the front windshield and the like; the refraction point of the projection unit projected on the front windshield is arranged on a connecting line of the eyeball and the obstacle, so that the virtual image obstacle seen by the driver and the actual obstacle are always in a superposition state, when the distance between the automobile and the obstacle is too close, the lower part of the obstacle image detected by the road condition identification unit is shielded by the automobile front cover, and the generated projection virtual image is in incomplete state compared with the front virtual image, and the alarm module gives an alarm.

The embodiment of the invention further discloses an automobile, the automobile is provided with the holographic projection system with the scene follow-up, barrier projection virtual image early warning is generated through the system, the accident rate is reduced, the life and property safety of a driver and passengers is protected, the safety and experience feeling of the passengers are improved, and the automobile has stronger competitiveness.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.