CN211893040U

CN211893040U - Vehicle adopting electronic rearview mirror system

Info

Publication number: CN211893040U
Application number: CN201921284045.0U
Authority: CN
Inventors: 付兵凯; 刘拾玉; 付克香; 付红强
Original assignee: Shanghai Yuxing Electronic Technology Co ltd
Current assignee: Shanghai Yuxing Electronic Technology Co ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-11-10
Anticipated expiration: 2029-08-09

Abstract

The utility model discloses an adopt vehicle of electron rear-view mirror system, including camera (170), display screen (180) and image integration processing module (100), wherein, image integration processing module (100) includes image acquisition module (110), image intercepting module (120), image processing module (130), image display module (140) and dynamic adjustment module (150), image acquisition module (110), image intercepting module (120), image processing module (130), image display module (140) connect gradually, and dynamic adjustment module (150) are connected with image intercepting module (120), image processing module (130), image display module (140) respectively. The utility model discloses a processing and the concatenation mode that acquire the image to the camera realize the display effect of similar double curvature physics rear-view mirror to realize through control that the display frame changes the demonstration along with the automobile body turns to the direction condition, with the judgement is accurately observed fast in real time to make things convenient for the driver, thereby promote driving safety greatly.

Description

Vehicle adopting electronic rearview mirror system

Technical Field

The utility model relates to an automobile-used electron rear-view mirror technical field especially relates to an adopt vehicle of electron rear-view mirror system.

Background

The automobile rearview mirror is important equipment for ensuring driving safety, the view field of the traditional rearview mirror refers to the range which can be reflected by a mirror surface, and the existing physical rearview mirror is generally a plane mirror or a convex mirror with single curvature. Due to the industrial regulation, the installation position of the rearview mirror does not exceed the outermost 250 mm of the automobile, so that the rearview mirrors installed on various automobile types at present have the problems of blind areas, insufficient view width or image distortion in different degrees. The driver can not accurately judge the position of the obstacle and the distance between the vehicle body and the obstacle, and the driving safety is seriously influenced. According to statistics, the traffic accidents caused by the blind area of the rearview mirror with the physical mirror surface account for about 30 percent, 51 percent of the urban traffic accidents are caused by the blind area of the turning, and the occurrence rate of the high-speed lane changing accidents caused by the blind area of the rearview mirror is even as high as 70 percent.

The existing manufacturers of the components of the physical rearview mirror adopt a method of different curvatures of a lens to expand the visual field and eliminate image distortion, the curvature radius of a lens area close to the vehicle body is smaller, the lens area is mainly used for observing the condition of a position far away from the side surface of the vehicle body, the curvature radius of a lens area far away from the vehicle body is larger, the reflection range of the lens is expanded, and the dead zone of the rearview mirror can be reduced as much as possible through double curvature display. In practical application, the physical rearview mirror often influences a driver to observe road conditions because of large wind resistance, small irradiation range, rainy and snowy weather and no light at night. The defects of the existing rearview mirrors are more obvious on special vehicles, for example, for a vehicle towing a trailer, when the vehicle turns, the trailer obstructs the view of the rearview mirrors, so that a driver cannot easily see how the trailer moves, the driver has to rely on frequent turning to observe the left and right rearview mirrors, and the fatigue strength of the driver is further increased, and dizziness is caused. For a commercial vehicle or an SUV vehicle with a relatively high vehicle body, the rear view mirror cannot see the part below a rear window, and a great potential safety hazard exists particularly in the process of backing a car in the driving process.

With the current continuous development of camera technology, the application field of cameras is gradually increased, and the physical rearview mirror is gradually replaced by an electronic rearview mirror system. However, due to the fact that the types of vehicles are numerous and the driving environment is variable, the electronic rearview mirror system cannot completely solve the technical problem that the joint of the wide angle and the far focus is smooth and fluent. Most manufacturers typically use a technique to magnify the image captured by the camera to achieve the optical zoom effect. However, the technical means still cannot realize the splicing synchronous seamless display of different view angle areas in one picture. In addition, when the vehicle is running, because the installation position of the camera is fixed, but a wider visual field is needed to be seen outside the display range of the display, the display picture needs to be switched or moved, or the invisible area is changed into the visible area by adjusting the position of the camera.

In order to solve the above problems, in the prior art, a video splicing mode is usually adopted to display two pictures, namely a main view and an extended view, on the same display screen. For example, in a vertical screen electronic rearview mirror, a far-focus picture and a wide-angle picture are spliced together up and down, so that the wide vertical visual angle and the wide horizontal visual angle of the whole vehicle are realized. However, in this case, the driver's sight line needs to move between the upper and lower frames, so that there is a long training and adaptation process for the driver of the commercial vehicle, and this display mode may cause two confirmations of the driver, which may seriously affect driving safety. Therefore, how to make the electronic rearview mirror system achieve double curvature display similar to a physical rearview mirror, give consideration to undistorted distant view, and observe a wider range, and meanwhile, it is necessary to solve the problem of smooth and fluent image transition at the joint of the wide angle and the far focus, which is a technical problem to be solved in the industry.

SUMMERY OF THE UTILITY MODEL

As described above, a plurality of rear view mirrors are often provided in a large commercial vehicle or a special vehicle, and the driver's sight line needs to be moved back and forth between the different rear view mirrors in order to see a wider field of view. The focal lengths of the display pictures of different television rearview mirrors are different in practice, and drivers also need to observe different pictures for repeated confirmation in order to accurately judge the object distance, which is very easy to cause the dizzy feeling and traffic accidents.

In view of the prior art, the utility model provides a be applied to double curvature and scene follow-up function display mode on the electronic rearview mirror specifically is the display effect who realizes similar double curvature physics rear-view mirror through the processing and the concatenation mode of acquireing the image to the camera to realize through control that the display frame changes along with the automobile body turns to the direction condition and shows, with the real-time accurate quick observation judgement of driver of making things convenient for, thereby promote driving safety greatly.

The utility model discloses a technical scheme specifically as follows:

the utility model discloses a double curvature electron rear-view mirror system includes camera, display screen and image integration processing module, wherein, image integration processing module includes image acquisition module, image intercepting module, image processing module, image display module and dynamic adjustment module, image acquisition module, image intercepting module, image processing module, image display module connect gradually, and the dynamic adjustment module is connected with image processing module, image display module respectively. The electronic rearview mirror comprises an image acquisition module, a display module and a control module, wherein the image acquisition module acquires image data based on a real-time image shot by an electronic rearview mirror camera; the image capturing module is used for selecting image data to be displayed based on the image data acquired by the image acquisition module and the actual vehicle signal; the image processing module is used for cutting the image to be displayed into a plurality of sub-images which are continuously arranged according to a preset proportion along the transverse direction or the radial direction on the basis of the intercepted image data to be displayed; the image display module is used for correcting the image data received from the image processing module and displaying corresponding sub-images on the display screen in a sub-screen mode according to a preset program; and the dynamic adjustment module is used for dynamically adjusting the split screen number and the split screen size of the image display module based on the image processing condition of the image processing module and the actual vehicle signal, and projecting each split image onto a corresponding split screen area according to a preset rule.

As an aspect of the utility model, the size of the regional A of video acquisition who shoots of electronic rearview mirror system's camera will be more than or equal to display frame region B, display frame region B can remove about the within range of video acquisition region A to satisfy the picture display requirement in the different scenes of vehicle operation.

As an aspect of the present invention, the image processing module cuts the image to be displayed into two partial images arranged in parallel in series along the vertical direction according to a predetermined ratio, which are defined as the first image V1 and the second image V2, respectively, and simultaneously compresses or stretches the second image V2 according to the control command of the dynamic adjustment module.

As an aspect of the present invention, when the vehicle is in the straight-line driving state in the uniform speed range, the number of split screens of the image display module is set to 2, which are defined as the first split screen S1 and the second split screen S2, respectively, and the split screen size ratio is kept constant, and there is a fixed video dividing line between the display areas of the first split screen S1 and the second split screen S2.

As an aspect of the present invention, in general, the division ratio of the first image V1 and the second image V2 is 1:1 or 3:2, and the size ratio of the first split screen S1 to the second split screen S2 is 2:1 or 3: 1.

As an aspect of the utility model, to project first image V1 after image processing module handles on first minute screen S1, ensure that the true distortionless of the main visual field image of first image display, project second image V2 after image processing module handles on second minute screen S2.

As an aspect of the present invention, when the vehicle is in a straight-line driving acceleration or deceleration or turning or lane changing or reversing state, the size ratio of the first split screen S1 and the second split screen S2 of the dynamic adjustment module dynamically adjusts the image display module according to the change of the vehicle state in the demand of the driver for the main view field and the extended view field of the electronic rearview mirror, and the video split line between the display areas of the first split screen S1 and the second split screen S2 can translate within a certain range according to the change of the vehicle state.

As an aspect of the present invention, when the vehicle is in an acceleration state from a low speed to a high speed, the size of the first split screen S1 is gradually increased, and accordingly, the size of the second split screen S2 is gradually decreased, and both the sizes of the first split screen S1 and the second split screen S2 are changed within a controllably determined range; when the vehicle is in a deceleration state from a high speed to a low speed, the size ratios of the first split screen S1 and the second split screen S2 are dynamically changed in a reverse manner, that is, the size of the first split screen S1 is controlled to be gradually reduced, and correspondingly, the size of the second split screen S2 is gradually increased.

As an aspect of the present invention, when the vehicle is in a turning or lane changing state, based on the turning degree of the turning or lane changing of the vehicle, the size of the second split screen S2 is controlled to be gradually increased, and accordingly, the size of the first split screen S1 is gradually decreased, and the sizes of the first split screen S1 and the second split screen S2 are both changed within a controllable and determined range, in order to ensure that the image projected onto the first split screen S1 by the first image V1 is true and undistorted, the range of the first image V1 can be correspondingly adjusted and decreased, and at the same time, as the size of the second split screen S2 is increased, the lateral compression ratio of the second image V2 is correspondingly controlled and decreased, so that the expanded view field of the second image V2 is more visually and clearly displayed on the second split screen S2 with the increased size, and the observation requirement of the driver for the rear or outside road condition during the turning or lane changing process is satisfied to the.

As an aspect of the present invention, when the vehicle is in the parking garage state, based on the vehicle parking steering and the vehicle speed state, the size of the second split screen S2 is controlled to gradually increase, and accordingly, the size of the first split screen S1 is gradually decreased, and the sizes of the first split screen S1 and the second split screen S2 are both changed within the controllable determined range; when the vehicle runs straight in reverse, the control and adjustment are carried out based on the vehicle speed of the vehicle running straight in reverse, when the vehicle speed of the vehicle running straight in reverse is low, the size proportion of the first split screen S1 and the second split screen S2 can be kept unchanged, and when the vehicle speed of the vehicle running straight in reverse is high, the size of the first split screen S1 is controlled to be gradually increased, and the size of the second split screen S2 is controlled to be gradually decreased.

As an aspect of the utility model, the utility model discloses a display screen of double curvature electronic rearview mirror system is vertical screen or horizontal screen.

As an aspect of the utility model, the utility model discloses an image integration processing module of double curvature electronic rearview mirror can also include the image check module, and it carries out the data check based on the raw data that acquires from the electronic rearview mirror camera and from image display module received sampling data to control the adjustment with this check-up result feedback to image processing module.

As an aspect of the present invention, there is provided a vehicle having the double curvature electronic rearview mirror system installed or equipped thereon.

Compared with the prior art, the utility model gain following technological effect:

1. the display mode of the electronic rearview mirror is creatively adopted to realize the display effect of physical optics multi-curvature, so that the pictures of the main view field and the extended view field are spliced along the same direction (such as transverse direction), the same double curvature display of the physical rearview mirror is realized, the main view field and the extended view field are seamlessly spliced, the defect that the main view field and the extended view field are spliced in an up-and-down mode in the vertical screen electronic rearview mirror in the prior art is greatly overcome, and the visual fatigue caused by repeated object distance confirmation of a driver is avoided. The electronic rearview mirror system has the advantages of practical and convenient display mode, low cost and easy large-scale commercial production and use, and the displayed main view and the expanded view completely meet the requirements of relevant regulations;

2. the video display method is defined by the steps of pixel extraction, cutting, compression and the like of video data signals of the camera device, the synchronous seamless display of the splicing of videos in different visual angle areas on a picture is realized, and the problem of transition influence of smooth and fluent combination of a wide angle and a far focus is solved. The angle of the electronic rearview mirror changes along with the direction change provided by different using main bodies in different environments, the risk of a secondary blind area in front and the fatigue strength caused by frequent turning or body exploration of a driver are reduced, a wider visual field is displayed, the visible area of the rearview mirror is further enhanced, and the driving safety of an automobile is ensured;

3. the video display method has the advantages that the obvious video boundary line is arranged at the junction of different picture display areas, clear information is provided for a driver, and the main view field and the extended view field are distinguished, so that the phenomenon that the driving safety is influenced by the dazzling feeling generated when the driver observes is avoided, the warning effect can be realized for the driver, and the safety of the driver in driving conditions such as turning, lane changing or backing is ensured.

Drawings

The drawings listed in the present application are only for better understanding of the technical solutions and advantages of the present invention, but do not constitute any limitation to the technical solutions of the present invention. Wherein:

fig. 1 is a schematic structural view of a double curvature electronic rearview mirror system according to the present invention;

fig. 2 is an image acquisition and capture diagram of a double curvature electronic rearview mirror system according to the present invention;

fig. 3 is a schematic view of different operating modes of a double curvature electronic rearview mirror system according to the present invention;

FIG. 4 is a logical control relationship table for a dual curvature electronic rearview mirror system according to the present invention;

fig. 5 is a schematic view of a cross-screen display of a double curvature electronic rearview mirror according to the present invention.

Detailed Description

The present invention will be described in detail and fully with reference to the following specific embodiments. The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses.

As shown in fig. 1, the utility model discloses a double curvature electronic rearview mirror system includes camera 170, display screen 180 and image integration processing module 100, wherein, image integration processing module 100 includes image acquisition module 110, image intercepting module 120, image processing module 130, image display module 140 and dynamic adjustment module 150, image acquisition module 110, image intercepting module 120, image processing module 130, image display module 140 connect gradually, and dynamic adjustment module 150 is connected with image intercepting module 120, image processing module 130, image display module 140 respectively.

The functions of each module are as follows:

an image acquisition module 110 that acquires image data based on a real-time image photographed by the electronic rearview mirror camera;

the image intercepting module 120 is used for selecting image data to be displayed based on the image data acquired by the image acquisition module 110 and the actual vehicle signal;

an image processing module 130 which cuts the image to be displayed into a plurality of partial images which are continuously arranged in a transverse direction or a radial direction according to a predetermined ratio based on the intercepted image data to be displayed;

an image display module 140 that performs correction processing on the image data received from the image processing module 130 and displays corresponding partial images on a display screen in a split screen manner according to a predetermined program;

and a dynamic adjustment module 150 that dynamically adjusts the number of split screens and the size of the split screen of the image display module 140 based on the image processing condition of the image processing module 130 and the actual vehicle signal, and projects each split image onto a corresponding split screen region according to a predetermined rule.

In order to ensure the safe and reliable operation of the electronic rearview mirror system, optionally, the image integration processing module of the present invention may further include an image verification module 160 for performing data verification based on the original data acquired from the camera of the electronic rearview mirror and the sampled data received from the image display module 140, and feeding back the verification result to the image processing module 130 for control adjustment.

Specifically, the image capturing module 110 is configured to capture a video image signal captured by the camera 170 of the electronic rearview mirror system in real time, and the captured image area is defined as a video capturing area a. The image capturing module 120 is configured to capture a display frame region B within the range of the video capturing region a captured by the image capturing module 110, where the display frame region B is a frame range finally output to the image display module 140 for display. Generally speaking, the size of the video capture area a shot by the camera 170 of the electronic rearview mirror system is greater than or equal to the display picture area B, and the display picture area B can move up, down, left and right within the range of the video capture area a, so as to meet the picture display requirements in different scenes of vehicle operation. As shown in fig. 2, the display screen area B can be adjusted and changed within the video capture area a according to the driving state of the vehicle and the visual needs of the driver.

As shown in fig. 3, for the double curvature electronic rearview mirror system, after the image capturing module 110 captures the video capturing area a and the image capturing module 120 captures the display screen area B, the image processing module 130 cuts the image to be displayed into two partial images arranged in parallel in a vertical direction according to a predetermined ratio based on the image area range of the display screen area B captured by the image capturing module 120, and the two partial images are respectively defined as a first image V1 (main view image) and a second image V2 (extended view image), and in general, the division ratio of the first image V1 and the second image V2 is 1:1 to 3:2, so that the two-part display area is constructed at the image data level. Generally, the image processing module 130 performs distortion correction processing on the first image V1 and the second image V2, and for the second image V2, the image processing module 130 performs lateral compression or stretching of the second image V2 according to a control command of the dynamic adjustment module 150, in addition to the distortion correction processing, which will be described later in detail.

As one embodiment of the present invention, the dynamic adjustment module 150 receives the vehicle sensor signal in real time, and when it is monitored according to a predetermined program that the vehicle is in a straight-line driving state within the uniform speed range, controls the electronic rearview mirror to be in the double curvature fixed display operating mode, at this time, the dynamic adjustment module 150 sets the number of split screens of the image display module 140 to 2 according to the cutting condition of the image processing module 130 on the display screen region B, for example, when the image processing module 130 cuts the display screen region B into 2 sub-images, the first image V1 and the second image V2, and also sets the number of split screens of the image display module 140 to 2 according to the same cutting mode, respectively defined as the first split screen S1 (main view display screen) and the second split screen S2 (extended view display screen), and simultaneously sets the ratio of the size of the first split screen S1 to the size of the second split screen S2 to 2:1 or 3:1, and keeps the split screen size, there is a fixed video dividing line between the display areas of the first split screen S1 and the second split screen S2 to distinguish the display effect between different curvatures, which is convenient for the driver to quickly recognize.

On the basis, the first image V1 (main-view image) processed by the image processing module 130 is projected onto the first split screen S1 (main-view display screen), so that the main-view image displayed by the first image is real and undistorted, that is, the main-view display effect is presented. The second image V2 (extended view image) processed by the image processing module 130 is projected onto the second split screen S2 (extended view display screen), that is, an extended view display effect is presented, so that a double curvature effect of left and right stitching is displayed on the entire display screen. As mentioned above, the image processing module 130 transversely compresses or stretches the second image V2 according to the control command of the dynamic adjustment module 150.

Specifically, the second image V2 is image-processed according to the split screen number and the split screen size determined by the dynamic adjustment module 150 under the control of the image display module 140, and in the working mode of the double curvature fixed display, the size of the second split screen S2 is smaller than that of the first split screen S1, at this time, the second image V2 is transversely compressed, so as to display the whole image information of the second image V2 within the size range of the second split screen S2, and generate the expanded display effect with larger curvature in the second split screen S2.

It should be noted that the electronic rearview mirror can be always in the operating mode of the double curvature fixed display, and at this time, the corresponding operating mode control adjustment can be turned off, and the operating mode of the electronic rearview mirror is irrelevant to the vehicle state. In addition, the display proportion of the first split screen and the second split screen in the double-curvature fixed display working mode is fixed, and the standard working state of the double-curvature electronic rearview mirror can be defined.

As one embodiment of the present invention, the dynamic adjustment module 150 receives the vehicle sensor signal in real time, and when it is monitored according to a predetermined program that the vehicle is in a state of straight-line driving acceleration or deceleration, or turning or lane changing or reversing, controls the electronic rearview mirror to be in a double-curvature follow-up display mode, at this time, the difference from the aforementioned double-curvature fixed display mode is that the dynamic adjustment module 150 sets the ratio of the size of the first split screen S1 to the size of the first split screen S1 to dynamically change in a range of 2:1 to 5:1, and the above range is preferably 2:1 to 4: 1. At this time, the two-split-screen size ratio is not fixed, but the dynamic adjustment module 150 dynamically adjusts the size ratio of the first split screen S1 and the second split screen S2 of the image display module 140 according to the change of the driver' S requirement for the main view field and the extended view field of the electronic rearview mirror caused by the change of the vehicle state.

When the vehicle is in an acceleration state from low speed to high speed, due to the factors of relatively single road condition, rapid change of a display screen, high response time requirement of a driver caused by too high speed and the like, the requirement of the driver on a main view field is relatively large at the moment, and the requirement on an expanded view field is relatively small, so that the size of the first split screen S1 is controlled to be gradually increased based on the change of the vehicle running speed, correspondingly, the size of the second split screen S2 is gradually reduced, and the sizes of the first split screen S1 and the second split screen S2 are both changed within a controllable and determined range. In order to ensure that the image projected by the first image V1 onto the first split screen S1 is true and undistorted, the range of the first image V1 can be correspondingly adjusted and increased, and meanwhile, as the size of the second split screen S2 is reduced, the transverse compression ratio of the second image V2 is correspondingly controlled and increased, so that the double curvature display effect of left-right splicing of the main view and the expanded view is ensured.

In the process, with the dynamic adjustment of the size proportion of the first split screen S1 and the second split screen S2, the video split lines for distinguishing different areas can be translated and swung within a certain range along with the change of the vehicle condition, so that the driver can conveniently and quickly identify the video split lines.

Correspondingly, when the vehicle is in a deceleration state from a high speed to a low speed, the size ratios of the first split screen S1 and the second split screen S2 are dynamically adjusted and changed in an opposite manner, that is, the size of the first split screen S1 is controlled to be gradually reduced, and correspondingly, the size of the second split screen S2 is gradually increased, which is not described herein again, and the specific control logic table is shown in fig. 4.

When the vehicle is in a turning or lane changing state, the requirement of a driver on the expanded visual field is high, the observation on the road conditions at the rear or outside is particularly important, and correspondingly, the requirement on the main visual field is relatively reduced, so that the size of the second split screen S2 is controlled to be gradually increased, the size of the first split screen S1 is correspondingly gradually reduced, and the sizes of the first split screen S1 and the second split screen S2 are both changed within a controllable and determined range through monitoring and prejudging by vehicle steering signals based on the turning degree of the vehicle. In order to ensure that the image projected by the first image V1 onto the first split screen S1 is true and undistorted, the range of the first image V1 can be correspondingly adjusted and reduced, and simultaneously, as the size of the second split screen S2 is increased, the transverse compression ratio of the second image V2 is correspondingly controlled and reduced, so that the expanded visual field of the second image V2 is more intuitively and clearly displayed on the second split screen S2 with the enlarged size, and the observation requirement of a driver on the rear or outside road condition in the process of turning or changing lanes is met to the greatest extent. Likewise, in the process, with the dynamic adjustment of the size proportion of the first split screen S1 and the second split screen S2, the video split line for distinguishing different areas swings in a certain range along with the steering signal of turning or changing lanes of the vehicle, so that the driver can conveniently and quickly recognize the video split line.

When the vehicle is in a reversing garage state, the reversing garage state comprises a reversing steering state and a reversing straight-ahead state, when the reversing steering state is adopted, the requirement of a driver on expanding the visual field is high, the observation on the road condition behind or outside is particularly important, and correspondingly, the requirement on the main visual field is relatively reduced, so that the monitoring and the prejudgment can be carried out through a vehicle steering signal specifically based on the reversing steering state and the vehicle speed state of the vehicle, the size of the second split screen S2 is controlled to be gradually increased, correspondingly, the size of the first split screen S1 is gradually reduced, and the sizes of the first split screen S1 and the second split screen S2 are changed in a controllable and determined range. When the vehicle is running straight in reverse, the requirement of a driver on the main visual field is higher than that of the expanded visual field, at the moment, the vehicle speed based on the vehicle running straight in reverse is controlled and adjusted, when the vehicle speed of the vehicle running straight in reverse is lower, the requirement of the driver on the visual field change of the electronic rearview mirror is not high at the moment, the proportion of the sizes of the first split screen S1 and the second split screen S2 can be kept unchanged, when the vehicle speed of the vehicle running straight in reverse is higher, the requirement of the driver on the main visual field is relatively larger at the moment, and the requirement on the expanded visual field is relatively smaller, therefore, the size of the first split screen S1 is controlled to be gradually increased, the size of the second split screen S2 is controlled to be gradually decreased, and the sizes of the first split screen S1 and the second split screen S2 are both changed in a controllable and determined range, so that the observation requirement of the driver on the rear.

The vehicle sensor signals comprise parameters such as driving states, driving speeds, steering signals and wheel tracks in the vehicle, the driving states comprise straight driving, backing, steering and lane changing, and the steering signals comprise steering wheel rotation signals, steering lamp signals, wheel rotation angles and the like.

Summary speaking, the utility model discloses with first image V1 (main field of vision image) project on first branch screen S1 (main field of vision display screen), present main field of vision display effect, project second image V2 (extension field of vision image) on second branch screen S2 (extension field of vision display screen), present extension field of vision display effect, therefore, first branch screen S1 and second branch screen S2 splice according to the horizontal distribution mode, seamless concatenation between main field of vision and the extension field of vision, the defect of splicing according to the mode from top to bottom between main field of vision and the extension field of vision in the vertical screen electronic rearview mirror among the prior art has greatly been improved, the driver has been avoided repeatedly to confirm the visual fatigue that the object distance brought.

The utility model discloses a double curvature electron rear-view mirror two branch screen junctions show in the display screen has the video cut-off rule, and this can help the driver to distinguish which side is the main field of vision, which side is the extension field of vision, simultaneously, can also help the driver to accurately judge the distance of vehicle and barrier or back car, avoids feeling the dizzy emergence that leads to the accident of traveling because of observing the rear-view mirror production. For the left rearview mirror, the left side of the boundary is an expanded view, and the right side of the boundary is a main view; for the right rear view mirror, the left side of the boundary is the main view, and the right side of the boundary is the extended view.

As previously mentioned, the ratio of the first split S1 and the second split S2 may be 2:1 to 5:1, preferably 2:1 to 4: 1. The ratio is preferably not less than 2:1 because too small a ratio is unfavorable for the driver to distinguish the main view from the extended view, and the ratio is preferably not more than 5:1 because too large a ratio makes the existence of the extended view meaningless. Within this range, the person skilled in the art can make any adjustment to the scale as long as the video display of the main and extended fields of view meets the requirements in the relevant legislation.

It should be particularly pointed out that the above description only describes the double curvature effect of the electronic rearview mirror in detail, and those skilled in the art can clearly understand on this basis that the display effect of the electronic rearview mirror with three or more curvatures can be realized by controlling the number of the sub-images and the split screens through the dynamic adjustment module 150 and the image processing module 130, and the specific implementation manner and the control logic are all easily realized on the basis of the basic function of the double curvature electronic rearview mirror disclosed in the present invention, and accordingly, the electronic rearview mirror with three or more curvatures all belongs to the scope of the present invention.

As one of the embodiments of the present invention, the display screen of the double curvature electronic rearview mirror can be a vertical screen or a horizontal screen. As shown in fig. 5, the horizontal rectangular mirror surface is also used for splicing and displaying two pictures with different focal lengths along the same direction, the first display area S1 is used for presenting a main view, and the second display area S2 is used for presenting an extended view.

As one of the embodiments of the present invention, when the horizontal screen is adopted, the vertical angle of the image display does not satisfy the requirement. In this case, the driver can be provided with a wider field of view by splicing the two.

As described above, in the electronic rearview mirror camera in the prior art, due to the fact that a sensor or an electric device is abnormal, or due to the fact that picture processing cannot meet requirements during high-speed driving, faults such as freezing, picture delay and even sudden screen blacking occur, and many potential safety hazards exist.

As another aspect of the present invention, the image integration processing module 100 of the dual curvature electronic rearview mirror may further include an image checking module 160, which performs data checking based on the original data acquired from the camera of the electronic rearview mirror and the sampling data received from the image display module 140, and feeds back the checking result to the image processing module 130 for control and adjustment. For example, if the moving speed of the video image is less than the vehicle speed, or the vehicle speed is not zero and the image is not frozen, it is determined that the image is frozen or delayed, and at this time, the image checking module sends an audible and visual alarm to the image display module 140.

It should be particularly noted that the utility model discloses a double curvature electronic rearview mirror can be applied to multiple vehicle, including but not limited to car, machineshop car, boats and ships, bus, cleaning cart, commodity circulation car, car as a house, commercial car etc.. The images displayed by the rearview mirrors can change along with the direction change provided by the main body, so that scene follow-up is realized.

The above detailed description does not limit the scope of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions can occur, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle adopting an electronic rearview mirror system is characterized by comprising the electronic rearview mirror system, wherein the electronic rearview mirror system comprises a camera (170), a display screen (180) and an image integrated processing module (100), and the camera (170), the image integrated processing module (100) and the display screen (180) are sequentially in signal connection; the image integration processing module (100) further comprises an image acquisition module (110), an image interception module (120), an image processing module (130), an image display module (140) and a dynamic adjustment module (150); the image acquisition module (110), the image interception module (120), the image processing module (130) and the image display module (140) are sequentially connected, and the dynamic adjustment module is respectively connected with the image processing module (130) and the image display module (140); the image integrated processing module (100) further comprises an image checking module (160), and the image checking module is respectively connected with the camera, the image display module and the image processing module; the display screen further comprises a first split screen S1 and a second split screen S2, and the first split screen S1 and the second split screen S2 are arranged on the display screen in parallel.

2. A vehicle employing an electronic rearview mirror system as claimed in claim 1 wherein said display screen is a vertical screen or a horizontal screen.