CN103358996B - Automobile A pillar perspective vehicle-mounted display device - Google Patents
Automobile A pillar perspective vehicle-mounted display device Download PDFInfo
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- CN103358996B CN103358996B CN201310349943.0A CN201310349943A CN103358996B CN 103358996 B CN103358996 B CN 103358996B CN 201310349943 A CN201310349943 A CN 201310349943A CN 103358996 B CN103358996 B CN 103358996B
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Abstract
The invention discloses an automobile A pillar perspective vehicle-mounted display device which reflects dynamic changes of driver sight angles. Cameras are arranged both inside an automobile and outside the automobile, the cameras outside the automobile are used for collecting surrounding sight information of a road ahead, and the cameras inside the automobile are used for obtaining driver vision information; according to driver sight concerning angles, images concerned by a driver are cut from images obtained by the cameras outside the automobile; flexible liquid crystal display screens are arranged on the inner side of an A pillar in an attaching mode according to the radian of the A pillar to display images; the images displayed on the flexible liquid crystal display screens inside the automobile are changed in real time according to driver sight angle change information collected by the cameras inside the automobile; the angle and the size of a driving scene image, collected by the cameras outside the automobile, at the position of a blind region are changed in real time, and an A pillar display system can be adjusted in a self-adaption mode according to sight needing regions detected through sight tracking. Therefore, external road traffic environment information which is more complete, more accurate and good in driver acceptability is provided for the driver, and the safety and the convenience of automobile driving are improved.
Description
Technical field
The present invention relates to a kind of auto-safety mechanism, specifically a kind ofly reflect the dynamic change of pilot's line of vision angle and make the vehicle-mounted image display system of A post transparence.In real time according to driving sight region-of-interest demand adaptively adjusting picture angle and size, thus information is looked around in more convenient acquisition driving.
Background technology
Windshield on automobile and the column between front door play a supportive role and are called A post, and A post, owing to can block driver's part sight line in the process of moving, therefore causes vision dead zone, as shown in Figure 1.The existence of A post blind area is one of major reason causing traffic accident, the sight line inconvenience of blocking especially is turned driver or is changed embody in process more obvious, so we wish that A post is more narrow better, and A post supports automotive front weight and requires certain rigidity, and existing automobile is difficult to realize both meeting and drives observation requirements and ensure certain coefficient of safety.Therefore a kind of traffic scene that cannot obtain due to blind area dysopia can had an X-rayed when A post observes turning or lane change of people's demand is to improve safety and the comfortableness of driving.
Barrier cancellation element looked by existing most of A post, display is arranged on inside A post and adopts LCDs more, it can not be fitted A post completely, and picture cannot be observed by adjustment, or indicator knob adjustment car scene picture is manually pressed in utilization, not only divert attention in debug process time-consuming, and in case of emergency there is potential safety hazard.Someone proposes to utilize range sensor detect driver's health and screen distance thus adjust display picture, though solving need not manually operated security hidden trouble but prediction effect is bad, accuracy declines, and correctly cannot estimate the real observed direction of driver.The figure of different driver and the difference of driving habits make blocked sight angle also different in addition.。
Summary of the invention
The present invention is the hidden danger existed to solve above-mentioned automobile A-column blind area, and provides a kind of automobile A column perspectiveization display device for mounting on vehicle reflecting the dynamic change of pilot's line of vision angle.As everyone knows, mainly through visual determination when driver observes road information, eyes are main media that driver obtains transport information, and people eye information in driving procedure is also significantly directly perceived.Therefore the present invention is directed to different driver custom characteristic, follow the tracks of pilot's line of vision deflection angle self-adaptative adjustment display frame design A post perspectiveization display device for mounting on vehicle.
The present invention lays on inclined-plane, A post both sides in car first flexible liquid crystal identical with its area radian respectively shields and the second flexible liquid crystal is shielded, the input access information processing and control element (PCE) of the first flexible liquid crystal screen and the second flexible liquid crystal screen, information process unit is realized by vehicle-mounted computer; In car, the first flexible liquid crystal of A post both sides is shielded and arranges the first camera and second camera collection Driver Vision information bottom the second flexible liquid crystal screen respectively, such as pupil position and corneal reflection parameter; The driver eye movement parameter collected by the first camera and second camera in car is calculated pilot's line of vision and pays close attention to angle beta under world coordinate system; Car outer both sides A post is arranged the 3rd camera and the 4th camera are set respectively, 3rd camera is connected with information control unit with the output of the 4th camera, utilizes outer 3rd camera of car and the 4th camera to obtain vehicle front road traffic environment and looks around information; The sight line that information control unit is obtained by computing is paid close attention to angle and is carried out mating and associating with the information of looking around that the outer acquisition system of car gathers, according to driving demand cutting with splice sight line region-of-interest position ε and φ that current time driver blocked by A post; Fixed angle β and γ change information when utilizing Driver Vision caused by perspective relation and position chanP to search for, change size and the direction of display image in real time, and the first flexible liquid crystal screen be arranged in by the extraneous road traffic environment information displaying meeting pilot's line of vision concern angle in car on A post and the second flexible liquid crystal are shielded, and are the environmental information that driver provides A post to block.
Compared to the prior art, tool has the following advantages in the present invention:
1, the occlusion issue of automobile A column to driver's forward sight visual field is solved:
According to the video image of pilot's line of vision change flexibly shown by adjustment flexible liquid crystal screen, the accuracy of A post perspectiveization display effect can be improve while meeting human visual system, meets driver in time and obtain the image lacked because A post blocks.Solving display device for mounting on vehicle in the past cannot the shortcoming of Accurate Prediction display frame.And improve existing A post depending on barrier cancellation element mostly be video camera front panoramic picture is provided and bring to driver with the phenomenon of the inconsistent sense in the true visual field, eliminate the plyability between road ahead traffic environment information that driver obtains from its normal unobstructed visual field and display screen two channels and redundancy, provide more complete, more accurate for driver and have the Receptive extraneous road traffic environment information of good driver.
2, contemplated by the invention driver personalityization visual characteristic, self adaptation display unit is without the need to driver's touch controls button: can the angle and direction of the required picture of adjustment at any time, decrease the hidden danger of diverting attention of driver operating process, and then improve fail safe and the convenience of car steering.
Accompanying drawing explanation
Fig. 1 is that the common vehicle forward sight of not installing A post perspectiveization display system apparatus looks barrier schematic diagram.
Fig. 2 is the schematic diagram outer A post of car being installed the first camera and second camera.
What Fig. 3 gathered for the outer cam device of car looks around image frame.
Fig. 4 is the sight angle schematic diagram that driver is blocked by A post.
Fig. 5 is the deflection schematic diagram of pilot's line of vision under world coordinate system
Fig. 6 blocks picture view for what gather according to the outer camera of pilot's line of vision deflection shearing car.Fig. 7 is that flexible liquid crystal screen display shows the video image reducing splicing.
Fig. 8 algorithm flow block diagram.
Wherein: A1-first flexible liquid crystal is shielded; A2-second flexible liquid crystal is shielded; B1-first camera; B2-second camera C1-the 3rd camera; C2-the 4th camera;
-camera detection range; β-left side A post block the angle of pilot's line of vision; The angle of the driver that γ-right side A post blocks; The image-region that ε-left-side video information discarding process retains; The image-region that φ-right side video information institute tailoring process retains.
Embodiment
As shown in Figure 4, the present embodiment inclined-plane, A post both sides in car is laid first flexible liquid crystal identical with its area radian respectively and is shielded A1 and the second flexible liquid crystal shields A2, the input access information processing and control element (PCE) of the first flexible liquid crystal screen A1 and the second flexible liquid crystal screen A2, information process unit is realized by vehicle-mounted computer.In car, bottom the first flexible liquid crystal screen A1 of A post both sides and the second flexible liquid crystal screen A2, the first camera B1 and second camera B2 are set respectively and gather Driver Vision information (pupil position and corneal reflection parameter).The driver eye movement parameter collected by the first camera B1 and second camera B2 in car is calculated pilot's line of vision and pays close attention to angle beta under world coordinate system, as shown in Figure 5.Car outer both sides A post is arranged the 3rd camera C1 and the 4th camera C2 is set respectively, as shown in Figure 2,3rd camera C1 is connected with information control unit with the output of the 4th camera C2, utilize the outer 3rd camera C1 and the 4th camera C2 of car to obtain vehicle front road traffic environment and look around information, as shown in Figure 3; Information control unit is paid close attention to angle by the sight line that computing obtains and is carried out mating and associating with the information of looking around that the outer acquisition system of car gathers, according to driving demand cutting and splicing sight line region-of-interest position ε and φ that current time driver blocked by A post, as shown in Figure 6; Fixed angle β and γ change information when utilizing Driver Vision caused by perspective relation and position chanP to search for, as shown in Figure 4, change size and the direction of display image in real time.And on the first flexible liquid crystal screen A1 extraneous road traffic environment information displaying meeting pilot's line of vision concern angle is arranged in car on A post and the second flexible liquid crystal screen A2, as shown in Figure 7, be the environmental information that driver provides A post to block.
As shown in Figure 8, information gathering part of the present invention is the outer 3rd camera C1 and the 4th camera C2 of Driver Vision information and car; While calculating pilot's line of vision angle character, utilize the priori of having trained to mate the video information that outside 3rd camera C1 and the 4th camera C2 gathers at information control unit, draw the information of A post institute's shielded image region ε and φ fast, the traffic environment information of blocking when simultaneously showing the corresponding different sitting posture of driver and sight angle direction.When observing sight line about the first camera B1 and second camera B2 can't detect driver in car and pilot's line of vision is accessible when blocking, the first flexible liquid crystal screen A1 and the second flexible liquid crystal screen A2 shows the car external environment information of fixed angle.
Described the first camera B1, second camera B2, the 3rd camera C1 and the 4th camera C2 are CCD camera.
Claims (2)
1. an automobile A column perspectiveization display device for mounting on vehicle, its inclined-plane, A post both sides in car is laid first flexible liquid crystal identical with its area radian respectively and to be shielded and the second flexible liquid crystal is shielded, the input access information processing and control element (PCE) of the first flexible liquid crystal screen and the second flexible liquid crystal screen, information process unit is realized by vehicle-mounted computer; In car, the first flexible liquid crystal of A post both sides is shielded and arranges the first camera and second camera collection Driver Vision information bottom the second flexible liquid crystal screen respectively; Car outer both sides A post is arranged the 3rd camera and the 4th camera are set respectively, be characterised in that: the driver eye movement parameter collected by the first camera and second camera in car is calculated pilot's line of vision and pays close attention to angle beta under world coordinate system; 3rd camera is connected with information control unit with the output of the 4th camera, utilize outer 3rd camera of car and the 4th camera to obtain vehicle front road traffic environment and look around information, the sight line that information control unit is obtained by computing is paid close attention to angle and is carried out mating and associating with the information of looking around that the outer acquisition system of car gathers, according to driving demand cutting with splice sight line region-of-interest position ε and φ that current time driver blocked by A post; Fixed angle β and γ change information when utilizing Driver Vision caused by perspective relation and position chanP to search for, change size and the direction of display image in real time, and the first flexible liquid crystal screen be arranged in by the extraneous road traffic environment information displaying meeting pilot's line of vision concern angle in car on A post and the second flexible liquid crystal are shielded, and are the environmental information that driver provides A post to block.
2. a kind of automobile A column perspectiveization display device for mounting on vehicle according to claim 1, is characterised in that: the first described camera, second camera, the 3rd camera and the 4th camera are CCD camera.
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Effective date of registration: 20190117 Address after: 100193 Unit 1, 19th Floor, F District, Weidao Industrial Park, Gu'an Emerging Industry Demonstration Zone, Langfang City, Hebei Province Patentee after: Guan haigao Automobile Technology Co Ltd Address before: 253072 No. 3 workshop in No. 505 Chongde Second Avenue, Songguantun Street Office, Dezhou Economic and Technological Development Zone, Shandong Province Patentee before: Dezhou Aviation Star Intelligent Equipment Co., Ltd. |