CN103358996A - Automobile A pillar perspective vehicle-mounted display device - Google Patents

Automobile A pillar perspective vehicle-mounted display device Download PDF

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Publication number
CN103358996A
CN103358996A CN2013103499430A CN201310349943A CN103358996A CN 103358996 A CN103358996 A CN 103358996A CN 2013103499430 A CN2013103499430 A CN 2013103499430A CN 201310349943 A CN201310349943 A CN 201310349943A CN 103358996 A CN103358996 A CN 103358996A
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China
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camera
automobile
information
liquid crystal
flexible liquid
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CN2013103499430A
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CN103358996B (en
Inventor
高镇海
李扬
高菲
张利丹
段立飞
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Guan haigao Automobile Technology Co Ltd
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Jilin University
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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

Automobile A column perspectiveization display device for mounting on vehicle
Technical field
The present invention relates to a kind of auto-safety mechanism, specifically a kind of vehicle-mounted image display system that has reflected the dynamic change of pilot's line of vision angle and made A post transparence.In real time according to driving sight region-of-interest demand adaptively adjusting picture angle and size, thereby the information of looking around is driven in more convenient acquisition.
Background technology
Windshield on the automobile and the column between the driver door play a supportive role and are called the A post, and therefore the A post causes vision dead zone, as shown in Figure 1 owing to can block chaufeur part sight line in the process of moving.The existence of A post blind area is one of major reason that causes traffic accident, the inconvenience that sight line is blocked is especially turned or is changed embody in the process more obvious at chaufeur, so we wish that the A post is more narrow better, and A post support automotive front weight requires certain rigidity, and existing automobile is difficult to realize that both the satisfied observation requirements of driving ensured certain safety factor.Therefore a kind of traffic scene that can't obtain owing to the blind area dysopia when A post observes turning or lane change of can having an X-rayed of people's demand improves safety and the traveling comfort of driving.
Existing most of A post is looked the barrier cancellation element, telltale is installed in A post inboard adopts LCDs more, its A post of can not fitting fully, and can't observe picture by adjustment, or utilize and manually press indicator knob adjustment car scene picture, not only in debug process, divert attention time-consuming, and in case of emergency have potential safety hazard.Someone proposes to utilize rang sensor to survey the chaufeur health and thereby screen distance is adjusted display picture, though having solved need not manually operated security hidden trouble but prediction effect is bad, accuracy rate descends, and can't correctly estimate the real observed direction of chaufeur.The different sight angles that block that make of the figure of different chaufeurs and driving habit are also different in addition.。
Summary of the invention
The present invention is the hidden danger that exists in order to solve above-mentioned automobile A-column blind area, and a kind of automobile A column perspectiveization display device for mounting on vehicle that reflects the dynamic change of pilot's line of vision angle is provided.As everyone knows, mainly by visual determination, eyes are main media that chaufeur obtains traffic information during chaufeur observation road information, and people eye information in driving procedure is also significantly directly perceived.Therefore the present invention is directed to different chaufeur driving habit characteristics, follow the tracks of pilot's line of vision deflection angle self adaptation and adjust display frame design A post perspectiveization display device for mounting on vehicle.
The present invention lays respectively on inclined-plane, A post both sides in car the first flexible liquid crystal screen identical with its area radian and the second flexible liquid crystal screen, the input end 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; The first flexible liquid crystal of A post both sides screen and the second flexible liquid crystal screen bottom arrange respectively the first camera and second camera collection Driver Vision information, for example pupil position and corneal reflection parameter in the car; Under world coordinate system, calculate pilot's line of vision concern angle beta by the driver eye movement parameter that the first camera and second camera in the car collect; Both sides A post arranges the 3rd camera and the 4th camera is set respectively outside car, the mouth of the 3rd camera and the 4th camera is connected with information control unit, utilizes outer the 3rd camera of car and the 4th camera to obtain the vehicle front road traffic environment and looks around information; The information of looking around that information control unit gathers by the resulting sight line concern of computing angle and the outer acquisition system of car is mated and is related, according to driving the demand cutting and splicing sight line region-of-interest position ε and the φ that the current time chaufeur is blocked by the A post; Fixed angle β and γ change information when utilizing the search of perspective relation and Driver Vision that position chanP causes, change in real time the size and the direction that show image, and will meet pilot's line of vision and pay close attention to the extraneous road traffic environment information of angle and show and be arranged in that the screen of the first flexible liquid crystal on the A post and the second flexible liquid crystal shield in the car, the environmental information that provides the A post to block for chaufeur.
The present invention is compared with existing technology, and has following advantage:
1, solved the occlusion issue of automobile A column to the chaufeur forward sight visual field:
Can change according to pilot's line of vision and adjust flexibly the shown video image of flexible liquid crystal screen, improve the accuracy of A post perspectiveization display effect when meeting human visual system, in time satisfy chaufeur and obtain owing to the A post blocks the image that lacks.Solved the shortcoming that display device for mounting on vehicle in the past can't Accurate Prediction display frame.And improve existing A post and look the barrier cancellation element and mostly be pick up camera and provide the place ahead panoramic picture and phenomenon that bring to chaufeur and the inconsistent sense true visual field, eliminate chaufeur from plyability and redundancy between the road ahead traffic environment information of its normal unobstructed visual field and two channels acquisitions of read-out, for chaufeur provides more complete, more accurate and the Receptive extraneous road traffic environment information of good chaufeur is arranged.
2, the present invention has considered chaufeur customized vision characteristic, the self adaptation read out instrument need not chaufeur touch controls button: the angle and direction of the required picture of adjustment at any time, reduce the hidden danger of diverting attention of chaufeur driver behavior process, and then improved safety and the convenience of vehicle drive.
Description of drawings
Fig. 1 looks the barrier schematic diagram for the common vehicle forward sight that A post perspectiveization display system apparatus is not installed.
Fig. 2 is the schematic diagram that the first camera and second camera are installed on the outer A post of car.
Fig. 3 is the image frame of looking around that cam device gathers outside the car.
Fig. 4 is the sight angle schematic diagram that chaufeur is blocked by the A post.
Fig. 5 is the direction angle schematic diagram of pilot's line of vision under world coordinate system
Fig. 6 is for shearing the picture view that blocks that camera gathers outside the car according to the pilot's line of vision direction angle.Fig. 7 is that the flexible liquid crystal screen display is shown the video image of reducing splicing.
Fig. 8 algorithm flow block diagram.
Wherein: A1-the first flexible liquid crystal screen; A2-the second flexible liquid crystal screen; B1-the first camera; B2-second camera C1-the 3rd camera; C2-the 4th camera; -camera detection range; The angle of β-left side A pilot's line of vision that post blocks; The angle of γ-chaufeur that right side A post blocks; The image-region that ε-left side video information reduction process keeps; The image-region that φ-right side video information institute reduction process keeps.
The specific embodiment
As shown in Figure 4, the first flexible liquid crystal screen A1 identical with its area radian and the second flexible liquid crystal screen A2 are laid respectively in the present embodiment inclined-plane, A post both sides in car, the input end 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.The first flexible liquid crystal of A post both sides screen A1 and the second flexible liquid crystal screen A2 bottom arrange respectively the first camera B1 and second camera B2 collection Driver Vision information (pupil position and corneal reflection parameter) in the car.Under world coordinate system, calculate pilot's line of vision concern angle beta by the driver eye movement parameter that the first camera B1 and second camera B2 in the car collect, as shown in Figure 5.Both sides A post arranges the 3rd camera C1 and the 4th camera C2 is set respectively outside car, as shown in Figure 2, the mouth of the 3rd camera C1 and the 4th camera C2 is connected with information control unit, utilize outer the 3rd camera C1 of car and the 4th camera C2 to obtain the vehicle front road traffic environment and look around information, as shown in Figure 3; The information of looking around that information control unit gathers by the resulting sight line concern of computing angle and the outer acquisition system of car is mated and is related, according to driving the demand cutting and splicing sight line region-of-interest position ε and the φ that the current time chaufeur is blocked by the A post, as shown in Figure 6; Fixed angle β and γ change information when utilizing the search of perspective relation and Driver Vision that position chanP causes as shown in Figure 4, change the size and the direction that show image in real time.And will meet pilot's line of vision and pay close attention to the extraneous road traffic environment information of angle and show and be arranged in the car on the screen A1 of the first flexible liquid crystal on the A post and the second flexible liquid crystal screen A2, as shown in Figure 7, the environmental information that provides the A post to block for chaufeur.
As shown in Figure 8, information acquisition of the present invention partly is outer the 3rd camera C1 of Driver Vision information and car and the 4th camera C2; When calculating the pilot's line of vision angle character, the priori of having trained in the information control unit utilization is mated the video information that outside the 3rd camera C1 and the 4th camera C2 gather, draw fast the information of A post institute shielded image zone ε and φ, the traffic environment information of blocking when showing simultaneously different sitting postures that chaufeur is corresponding and sight angle direction.Pilot's line of vision is accessible when the first camera B1 and second camera B2 in the car can't detect about chaufeur the observation sight line when blocking, and the first flexible liquid crystal screen A1 and the second flexible liquid crystal screen A2 show 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 the CCD camera.

Claims (2)

1. automobile A column perspectiveization display device for mounting on vehicle, be characterised in that: the first flexible liquid crystal screen identical with its area radian and the second flexible liquid crystal screen are laid respectively in inclined-plane, A post both sides in car, the input end 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; The first flexible liquid crystal of A post both sides screen and the second flexible liquid crystal screen bottom arrange respectively the first camera and second camera collection Driver Vision information in the car; Under world coordinate system, calculate pilot's line of vision concern angle beta by the driver eye movement parameter that the first camera and second camera in the car collect; Both sides A post arranges the 3rd camera and the 4th camera is set respectively outside car, the mouth of the 3rd camera and the 4th camera is connected with information control unit, utilizes outer the 3rd camera of car and the 4th camera to obtain the vehicle front road traffic environment and looks around information; The information of looking around that information control unit gathers by the resulting sight line concern of computing angle and the outer acquisition system of car is mated and is related, according to driving the demand cutting and splicing sight line region-of-interest position ε and the φ that the current time chaufeur is blocked by the A post; Fixed angle β and γ change information when utilizing the search of perspective relation and Driver Vision that position chanP causes, change in real time the size and the direction that show image, and will meet pilot's line of vision and pay close attention to the extraneous road traffic environment information of angle and show and be arranged in that the screen of the first flexible liquid crystal on the A post and the second flexible liquid crystal shield in the car, the environmental information that provides the A post to block for chaufeur.
2. a kind of automobile A column perspectiveization display device for mounting on vehicle according to claim 1, be characterised in that: described the first camera, second camera, the 3rd camera and the 4th camera are the CCD camera.
CN201310349943.0A 2013-08-13 2013-08-13 Automobile A pillar perspective vehicle-mounted display device Active CN103358996B (en)

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CN104228684A (en) * 2014-09-30 2014-12-24 吉林大学 Device and method for eliminating dead zones of automobile A columns
CN105172680A (en) * 2015-08-12 2015-12-23 江苏博众汽车部件有限公司 A-column view perspective screen
CN105235596A (en) * 2014-07-11 2016-01-13 上海通用汽车有限公司 System, method and vehicle used for removing obstacle view angle of vehicle A column
CN105522971A (en) * 2014-10-21 2016-04-27 现代摩比斯株式会社 Apparatus and method for controlling outputting of external image of vehicle
CN106143307A (en) * 2016-07-11 2016-11-23 京东方科技集团股份有限公司 A kind of drive assist system and vehicle
CN106274686A (en) * 2016-08-05 2017-01-04 北京智芯微电子科技有限公司 A kind of vehicle blind zone rendering method and device
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WO2018036250A1 (en) * 2016-08-24 2018-03-01 京东方科技集团股份有限公司 Automotive auxiliary display device, display method, and vehicle
CN108012110A (en) * 2016-11-01 2018-05-08 法乐第(北京)网络科技有限公司 A kind of car outer video acquiring method, device and electronic equipment
CN108482247A (en) * 2018-03-27 2018-09-04 京东方科技集团股份有限公司 A kind of vehicle and its DAS (Driver Assistant System) and auxiliary driving method
CN108791153A (en) * 2018-08-01 2018-11-13 张九华 Automobile A column is imaged arrangement for perspective immediately
CN108919960A (en) * 2018-07-27 2018-11-30 上海理工大学 A kind of system showing missing image
CN108965644A (en) * 2018-07-27 2018-12-07 上海理工大学 A kind of system and method for arranging showing missing image
CN109109744A (en) * 2018-07-27 2019-01-01 上海理工大学 A kind of system and method for arranging showing missing image
CN109109745A (en) * 2018-07-27 2019-01-01 上海理工大学 A kind of system showing missing image
CN109305104A (en) * 2018-10-24 2019-02-05 安徽理工大学 A kind of " perspective " screen apparatus that visual angle can be automatically adjusted in A column
CN109917920A (en) * 2019-03-14 2019-06-21 百度在线网络技术(北京)有限公司 Vehicle-mounted projection processing method, device, mobile unit and storage medium
CN109910754A (en) * 2019-04-23 2019-06-21 北京七鑫易维科技有限公司 A kind of method and terminal device of the acquisition of blind area picture
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CN112298039A (en) * 2020-09-27 2021-02-02 浙江合众新能源汽车有限公司 A-column imaging method
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CN105235596A (en) * 2014-07-11 2016-01-13 上海通用汽车有限公司 System, method and vehicle used for removing obstacle view angle of vehicle A column
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CN111409556A (en) * 2020-04-13 2020-07-14 京东方科技集团股份有限公司 Display method, system, device and storage medium for vehicle A-pillar display assembly
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