CN201096905Y - Car hemisphere panorama rear view system - Google Patents
Car hemisphere panorama rear view system Download PDFInfo
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- CN201096905Y CN201096905Y CNU2007201122641U CN200720112264U CN201096905Y CN 201096905 Y CN201096905 Y CN 201096905Y CN U2007201122641 U CNU2007201122641 U CN U2007201122641U CN 200720112264 U CN200720112264 U CN 200720112264U CN 201096905 Y CN201096905 Y CN 201096905Y
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Abstract
The utility model relates to a vehicle hemispherical panorama rearview system, which comprises a camera, and a video display device. The camera adopts a hemispherical panorama annular lens and an image transferring lens installed at the rear of the hemispherical panorama annular lens. The front curved surface of the hemispherical panorama annular lens presents an inward-concave spherical surface, and one surface of the spherical surface directing towards the inner part of the lens is a first reflection spherical surface; a ring-shaped outward-convex first refraction spherical surface is connected at the periphery of the first reflection spherical surface; the first refraction spherical surface is connected with a ring-shaped outward-convex spherical surface, one surface of the spherical surface directing towards the inner part of the lens is a second refraction spherical surface, the rear curved surface of the lens connected with the second refraction spherical surface presents an outward-convex spherical surface, which is taken as the second the second refraction spherical surface. One way of the video output of the camera is connected with a display unit through an image unwrapping unit of the video display device, and the other way thereof is connected with an alarm unit through an intelligent image analysis unit. The vehicle hemispherical panorama rearview system can display the vehicle rearview panorama clearly on the display screen in real time, can sense the dangerous situation, start alarm and can ensure that the running is safe.
Description
Technical field
The utility model relates to a kind of video monitoring system, relates in particular to a kind of automobile hemisphere panorama back-sight visual system.
Background technology
Automobile is when reversing and turning round, general driver is an ambient conditions of observing the automobile back by the reflective mirror that is installed on the vehicle right and left both sides and the rearview mirror that is installed on pilothouse, there is certain limitation in the scope that the driver can see, the visual field is not very open, causes traffic hazard easily.Progress along with science and technology, occurred by using video technique ambient conditions such as automobile back vehicle, pedestrian, scenery to be presented on driver's back-sight visual system in front, a kind of " rear view machine for automobile " disclosed as Chinese patent literature 99108717.8, it adopts camera, direction to rotate machine, image display machines, circuit and gauge tap, direction rotation machine drives the camera rotation, thereby the ambient image of all directions was photographed in timesharing, and the picture that camera photographs is presented at and is installed on the indoor image display machines of driver driving.Though the visual field is expanded to some extent, but because conventional camera visual field is limited, a direction can not be observed all visual fields, automobile back, obtain all visual fields so need service orientation rotation machine to adjust the camera direction timesharing, cause the image real-time that shows on the image display machines very poor, the potential danger that exists when automobile high-speed is exercised is bigger, still has traffic safety hidden danger.
Summary of the invention
The utility model mainly solves above-mentioned rear view machine for automobile needs timesharing just can obtain the technical matters that the image real-time of all visual fields, demonstration is very poor, can not effectively reduce traffic hazard; Provide the image real-time that a kind of same time just can obtain automotive rear-view panorama, broad view, demonstration good, effectively reduce the automobile hemisphere panorama back-sight visual system of traffic hazard.
Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals: the utility model comprises video camera and the video display devices that is attached thereto, and the camera lens of described video camera comprises hemisphere panoramic ring lens and is installed on the image rotation lenses at hemisphere panoramic ring lens rear; Described hemisphere panoramic ring lens comprise first reflecting sphere, second reflecting sphere, the first refraction sphere, the second refraction sphere; The front curve of described hemisphere panoramic ring lens is the sphere of indent, and the one side of this sphere towards lens inside is first reflecting sphere; Be connected with the first refraction sphere of evagination in the form of a ring around described first reflecting sphere; The described first refraction sphere links to each other with the sphere of another evagination in the form of a ring again, the one side of this sphere towards lens inside is second reflecting sphere, this sphere links to each other with the rear curved surface of hemisphere panoramic ring lens, and rear curved surface is the sphere of evagination, is the second refraction sphere.Make object point reflect refraction at spherical surface,, received by detectors such as CCD at last again through image rotation lenses through the first refraction refraction at spherical surface, the reflection of second reflecting sphere, first reflecting sphere reflection, second near hemisphere panoramic ring lens rear.The visual field that photographs comprises the place ahead, left, left back, right-hand, the right back of lens, guarantees that the visual field that driver's observation arrives is openr.Hemisphere panoramic ring lens have adopted binary optical technique, have not only improved picture element, and structure is very small and exquisite.Adopt hemisphere panoramic ring lens, just can photograph the automotive rear-view panorama at one time and on the video display devices of driver front, show with a video camera.The effect of image rotation lenses is the virtual image point that is positioned at lens inside or rear that object point is become via hemisphere panoramic ring lens to be imaged as real image point and can be received by detectors such as CCD.Realize that the driver can observe the automotive rear-view panorama at one time in real time, effectively reduce traffic hazard.
As preferably, the display unit that described video display devices comprises the image stretching unit, link to each other with the output terminal of image stretching unit and provide the power supply unit of operating voltage, the VT of the described video camera of input termination of image stretching unit for the whole video display device.If the image that hemisphere panoramic ring lens video camera is filmed directly send the display unit demonstration, what see is the image that is concentric circles, has big gap with material object, brings difficulty for observation and resolution.The effect of image stretching unit is that the image rings cutting spread is opened, and send display unit to show again, and what show is the picture consistent with actual environment, guarantee the driver can light and clear observation, accurately differentiate the ambient conditions of automobile back, effectively reduce traffic hazard.
As preferably, described video display devices also comprises intelligent image analytic unit, auto-alarm-signal keying device unit, the VT of the described video camera of input termination of intelligent image analytic unit, the input end of the output termination auto-alarm-signal keying device unit of intelligent image analytic unit.The intelligent image analytic unit carries out motion analysis, pattern-recognition to the picture signal of obtaining, the perceived risk state starts the auto-alarm-signal keying device unit then and sends alerting signal, reminds the driver to deal with in time, avoid the generation of dangerous situation, further guarantee safety.
As preferably, described display unit adopts LCDs.Volume is little, in light weight, and display frame is more clear.
The beneficial effects of the utility model are: adopt the camera lens of hemisphere panoramic ring lens as video camera, widened video camera greatly in visual field that synchronization can photograph.Only need to use a hemisphere panoramic ring lens video camera, just the automotive rear-view panorama in real time, clearly can be presented on driver's display screen in front, make the driver observe the ambient conditions of automobile back at a glance, effectively reduce traffic hazard.
Description of drawings
Fig. 1 is a kind of structural representation of hemisphere panoramic ring lens camera lens in the utility model.
Fig. 2 is that a kind of circuit of the present utility model connects block diagram.
Fig. 3 is the synoptic diagram of a kind of user mode of the present utility model.
1. video cameras among the figure, 2. video display devices, 21. image stretching unit, 22. display unit, 23. power supply units, 24. intelligent image analytic units, 25. auto-alarm-signal keying device unit, 3. hemisphere panoramic ring lens, 31. first reflecting spheres, 32. second reflecting spheres, 33. the first refraction sphere, 34. the second refraction sphere, 4. image rotation lenses, 5.CCD detector.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: the automobile hemisphere panorama back-sight visual system of present embodiment, as shown in Figure 1 and Figure 2, comprise a video camera 1 and a video display devices 2 that is attached thereto, and the camera lens of this video camera 1 adopts hemisphere panoramic ring lens 3.Hemisphere panoramic ring lens 3 comprise first reflecting sphere 31, second reflecting sphere 32, the first refraction sphere 33, the second refraction sphere 34.The front curve of hemisphere panoramic ring lens 3 is the sphere of indent, and the one side of this sphere towards lens inside is first reflecting sphere 31; Be connected with the first refraction sphere 33 of evagination in the form of a ring around first reflecting sphere 31; The first refraction sphere 33 links to each other with the sphere of another evagination in the form of a ring again, the one side of this sphere towards lens inside is second reflecting sphere 32, this sphere links to each other with the rear curved surface of hemisphere panoramic ring lens 3 again, and rear curved surface is the sphere of evagination, is the second refraction sphere 34.The rear of hemisphere panoramic ring lens 3 also is equipped with image rotation lenses 4.As shown in Figure 2, video display devices 2 comprises that image stretching unit 21, display unit 22, intelligent image analytic unit 24, auto-alarm-signal keying device unit 25 reach the power supply unit 23 that operating voltage is provided for the whole video display device.The VT of the input termination video camera 1 of image stretching unit 21, the input end of the output termination display unit 22 of image stretching unit 21; The VT of the input termination video camera 1 of intelligent image analytic unit 24, the input end of the output termination auto-alarm-signal keying device unit 25 of intelligent image analytic unit 24.Display unit 22 adopts LCDs in the present embodiment.
Two light of A and B have been shown among Fig. 1 have replaced catadioptric imaging process through twice by hemisphere panoramic ring lens, they are through 33 refractions of the first refraction sphere, again through second reflecting sphere 32 and 31 reflections of first reflecting sphere, penetrate from the second refraction sphere 34 at last, on image planes, form picture point A ' and B ', received by ccd detector.The effect of image rotation lenses 4 is the virtual image point that is positioned at lens inside or rear that object point is become through hemisphere panoramic ring lens to be imaged as real image point and can be received by detectors such as CCD.Hemisphere panoramic ring lens are (90-α 2,90+ α 1) along the field angle scope of optical axis direction, and space that can imaging is that this field angle is rotated formed three-dimensional space around optical axis.
As shown in Figure 2, video camera clap vision signal flow to video display devices, by the image stretching unit image rings cutting spread is opened the liquor charging crystal display screen again and shows.Vision signal also flows to the intelligent image analytic unit simultaneously, through judgement, analysis, the processing of internal processes, in case find that dangerous situation sends signal enabling auto-alarm-signal keying device unit immediately.
As shown in Figure 3, during use, hemisphere panoramic ring lens video camera 1 is installed in the car roof rear portion, about about 15 degree, different vehicles need be adjusted angle to satisfy the requirement of the best visual field of system to the angle on optical axis and ground greatly.Video display devices 2 is placed in driver the place ahead, is convenient to visual field behind the driver's observation car.The scope in the dotted line left side that identifies among Fig. 3 is exactly visual field behind the car that the shooting function photographs in the utility model, has almost covered the visual field, rear portion of automobile, and (position of irising out among Fig. 3) above the automobile trunk dropped in its blind area.
The utility model by camera calibration, image rings cutting spread open, advanced person's such as motion analysis, pattern-recognition computer vision technique can not only be directly sees open automotive rear-view visual field after the expansion by screen, and identification of targets is declared speed after can also carrying out car, the perceived risk situation, start and report to the police, in time remind the driver to deal with, avoid the generation of dangerous situation, effectively reduce traffic hazard, improve running safety.
Claims (4)
1. automobile hemisphere panorama back-sight visual system, the video display devices (2) that comprises video camera (1) and be attached thereto, the camera lens that it is characterized in that described video camera (1) comprises hemisphere panoramic ring lens (3) and is installed on the image rotation lenses (4) at hemisphere panoramic ring lens (3) rear that described hemisphere panoramic ring lens (3) comprise first reflecting sphere (31), second reflecting sphere (32), the first refraction sphere (33), the second refraction sphere (34); The front curve of described hemisphere panoramic ring lens (3) is the sphere of indent, and the one side of this sphere towards lens inside is first reflecting sphere (31); Be connected with the first refraction sphere (33) of evagination in the form of a ring around described first reflecting sphere (31); The described first refraction sphere (33) links to each other with the sphere of another evagination in the form of a ring again, the one side of this sphere towards lens inside is second reflecting sphere (32), this sphere links to each other with the rear curved surface of hemisphere panoramic ring lens (3) again, rear curved surface is the sphere of evagination, is the second refraction sphere (34).
2. automobile hemisphere panorama back-sight visual system according to claim 1, it is characterized in that described video display devices (2) comprises image stretching unit (21), the display unit (22) that links to each other with the output terminal of image stretching unit (21) and provide the power supply unit (23) of operating voltage, the VT of the described video camera of input termination (1) of image stretching unit (21) for the whole video display device.
3. automobile hemisphere panorama back-sight visual system according to claim 1 and 2, it is characterized in that described video display devices (2) also comprises intelligent image analytic unit (24), auto-alarm-signal keying device unit (25), the VT of the described video camera of input termination (1) of intelligent image analytic unit (24), the input end of the output termination auto-alarm-signal keying device unit (25) of intelligent image analytic unit (24).
4. automobile hemisphere panorama back-sight visual system according to claim 1 and 2 is characterized in that the display unit (22) of described video display devices (2) adopts LCDs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201122641U CN201096905Y (en) | 2007-07-23 | 2007-07-23 | Car hemisphere panorama rear view system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201122641U CN201096905Y (en) | 2007-07-23 | 2007-07-23 | Car hemisphere panorama rear view system |
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| Publication Number | Publication Date |
|---|---|
| CN201096905Y true CN201096905Y (en) | 2008-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201122641U Expired - Fee Related CN201096905Y (en) | 2007-07-23 | 2007-07-23 | Car hemisphere panorama rear view system |
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| CN (1) | CN201096905Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102137252A (en) * | 2011-02-28 | 2011-07-27 | 兰州大学 | Vehicle-mounted virtual panoramic display device |
| CN104010119A (en) * | 2014-05-13 | 2014-08-27 | 深圳奇沃智联科技有限公司 | 360-degree cylindrical real-time imaging device |
-
2007
- 2007-07-23 CN CNU2007201122641U patent/CN201096905Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102137252A (en) * | 2011-02-28 | 2011-07-27 | 兰州大学 | Vehicle-mounted virtual panoramic display device |
| CN104010119A (en) * | 2014-05-13 | 2014-08-27 | 深圳奇沃智联科技有限公司 | 360-degree cylindrical real-time imaging device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080806 |