CN107901831B - Week vision observation mirror - Google Patents
Week vision observation mirror Download PDFInfo
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- CN107901831B CN107901831B CN201711463699.5A CN201711463699A CN107901831B CN 107901831 B CN107901831 B CN 107901831B CN 201711463699 A CN201711463699 A CN 201711463699A CN 107901831 B CN107901831 B CN 107901831B
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- mirror
- lens
- view mirror
- image
- module
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- 239000011521 glass Substances 0.000 claims abstract description 23
- 238000003702 image correction Methods 0.000 claims description 23
- 238000006243 chemical reaction Methods 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 3
- 238000003384 imaging method Methods 0.000 description 12
- 238000012545 processing Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/10—Front-view mirror arrangements; Periscope arrangements, i.e. optical devices using combinations of mirrors, lenses, prisms or the like ; Other mirror arrangements giving a view from above or under the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/02—Rear-view mirror arrangements
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformations in the plane of the image
- G06T3/04—Context-preserving transformations, e.g. by using an importance map
- G06T3/047—Fisheye or wide-angle transformations
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformations in the plane of the image
- G06T3/40—Scaling of whole images or parts thereof, e.g. expanding or contracting
- G06T3/4038—Image mosaicing, e.g. composing plane images from plane sub-images
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/698—Control of cameras or camera modules for achieving an enlarged field of view, e.g. panoramic image capture
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Signal Processing (AREA)
- Studio Devices (AREA)
Abstract
The invention discloses a periscope, which comprises a front vision observation mirror and a rear vision observation mirror, wherein the front vision observation mirror comprises a front mirror lens assembly and a front mirror shell, the front mirror lens assembly comprises a wide-angle camera lens, the wide-angle camera lens is arranged on a lens seat, the right side part of the lens seat is connected with a sensor seat, an image sensor plate is arranged on the sensor seat, the front mirror lens assembly is fixedly arranged on the front mirror shell below through the lens seat, window protection glass is arranged on the front mirror shell on the left side of the front mirror lens assembly, the rear mirror comprises a rear mirror lens assembly and a rear mirror shell, the structure of the rear mirror lens assembly is the same as that of the front mirror lens assembly, and window protection glass is arranged on the rear mirror shell on the right side of the rear mirror lens assembly. The method has the advantage that the double wide-angle lenses are adopted for 360-degree panoramic image acquisition. The defect that the rear 180-degree view field is blocked due to the limitation of the installation position of the traditional single-lens panoramic observation mirror is overcome.
Description
Technical Field
The invention relates to the field of observation mirrors, in particular to a periscope.
Background
Currently, panoramic observation mirrors mostly adopt panoramic imaging systems, and the panoramic imaging systems mainly comprise three parts: photosensitive elements, such as CCD devices, and imaging lenses, such as conventional imaging lenses or telecentric lenses. Convex lenses, mirrors, convex lenses such as wide angle lenses. Convex mirrors, which are quadric surfaces, such as spherical, conical, hyperbolic, and parabolic or higher order rotationally symmetric aspheric surfaces.
The method comprises the steps of collecting surrounding environment information by using a wide-angle lens, and projecting object light rays in a 360-degree range from a three-dimensional space to an imaging sensor by using a single-viewpoint imaging characteristic of the wide-angle lens to obtain panoramic video images in a view range with a certain angle in a horizontal direction and a certain angle in a vertical direction, so that a good panoramic cylindrical surface image is generated on a target surface of the sensor. It features large visual field range.
To realize 360-degree panoramic observation with a single lens, the installation position is required to be higher, and other devices do not cover the field of view. For example, the panoramic observation mirror is arranged on the mast of the ship for performing panoramic observation. However, like a closed army warfare vehicle, other sighting devices, radars and the like are arranged on the closed army warfare vehicle, the panoramic observation mirror is not allowed to be arranged at a high position, and the view field in the 360-degree range is blocked due to the limitation of the installation position.
The design of the device adopts double observation mirrors, the two observation mirrors are arranged in tandem, the front observation mirror collects the front 190-degree view field environment, the rear observation mirror collects the rear 190-degree view field environment, an upper image and a lower image are spliced into a graph to be displayed and output through an image splicing technology, the upper image is a front 190-degree range image, and the lower image is a rear 190-degree range image. The high and low field angles are-10 degrees to +40 degrees, and an SOC video preprocessing technology is applied to optimize and embed an image processing algorithm program into a chip so as to realize the acquisition and processing of panoramic images.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a periscope with a double wide-angle camera lens for realizing 360-degree periscope observation.
The aim of the invention is achieved by the following technical scheme: the utility model provides a periscope, includes periscope and rearview mirror, the periscope include front-view mirror lens subassembly and front-view mirror casing, front-view mirror lens subassembly include wide-angle camera lens, wide-angle camera lens installs on the lens frame, lens frame right side portion is connected with the sensor seat, install image sensor board on the sensor seat, front-view mirror lens subassembly passes through lens frame fixed mounting on the front-view mirror casing of lens frame below, install window protection glass on the front-view mirror casing of front-view mirror lens subassembly left side, the rearview mirror include rear-view mirror lens subassembly and rear-view mirror casing, rear-view mirror lens subassembly and front-view mirror lens subassembly the same structure, rear-view mirror lens subassembly passes through the lens frame and installs on the rear-view mirror casing, install window protection glass on the rear-view mirror casing on rear-view mirror lens subassembly right side, install the inflation valve on the rear-view mirror casing that is located rear-view mirror lens subassembly left side, install image correction module on the rear-view mirror casing that the inflation valve left side passes through the image sensor board of video cable connection rear-view mirror.
Specifically, the window protection glass is semicircular, a layer of conductive film is plated on the inner wall of the window protection glass, the bonding surface of the conductive film and the window protection glass is bonded and overlapped through conductive silica gel, and a layer of antireflection film is plated on the outer wall of the window protection glass.
Specifically, wide-angle camera lens pass through fine thread connection on the lens mount, be provided with the recess in lens mount right side portion, the sensor seat is through adjusting screw adjustment its upper and lower left and right movement position in the lens mount recess, upper portion, lower part, left side, the right side of lens mount all set up an adjusting screw, four adjusting screw evenly distributed.
Specifically, the left side of the image correction module is provided with a radiator plate, and a power conversion group is arranged on a rear mirror shell on the left side of the radiator plate.
Specifically, the image correction module is connected with the image splicing and superposing module, the image correction module and the image splicing and superposing module are integrally arranged on the radiator plate in an up-down superposition mode, and the radiator plate is arranged in the rear mirror shell.
Specifically, the power conversion group comprises a power module, wherein a power input end of the power module is connected with a power socket, and an output power socket of the power module is connected with an image sensor board, an image correction module and an image splicing and superposing module through power cables.
Specifically, the image sensor board of the front view mirror is connected with the image correction module in the rear view mirror through a video cable.
The beneficial effects of the invention are as follows: and adopting a double wide-angle lens to collect 360-degree panoramic images. The defect that the rear 180-degree view field is blocked due to the limitation of the mounting position of the traditional single-lens panoramic observation mirror is overcome, and the panoramic observation within the 360-degree view field range is realized through an image stitching technology; the wide-angle camera is in fine thread connection with the lens seat, and the imaging focal length can be adjusted by adjusting the wide-angle camera back and forth. The lens can be ensured to be imaged on the center of the target surface of the image sensor plate by adjusting the upper, lower, left and right adjusting screws.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a front view mirror according to the present invention;
FIG. 3 is a schematic view of the structure of a rearview mirror according to the present invention;
FIG. 4 is a schematic view of a lens assembly according to the present invention;
FIG. 5 is a schematic side view of a lens assembly according to the present invention;
FIG. 6 is a schematic block diagram of a periscope of the present invention;
FIG. 7 is a diagram of an image display interface according to the present invention;
in the figure: 1-front view observation mirror, 2-rear view observation mirror, 3-power cable, 4-video cable, 5-window protection glass, 6-wide-angle camera lens, 7-lens seat, 8-image sensor board, 9-front mirror housing, 10-sensor seat, 11-inflation valve, 12-image correction module, 13-image splice and superposition module, 14-fan heater board, 15-power conversion group, 16-rear mirror housing and 17-adjusting screw.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, a periscope is shown, including periscope 1 and rearview mirror 2, periscope 1 include front-view mirror lens subassembly and front-view mirror housing 9, front-view mirror lens subassembly include wide-angle camera lens 6, wide-angle camera lens 6 installs on lens mount 7, lens mount 7 lateral part is connected with sensor mount 10, install image sensor board 8 on the sensor mount 10, the front-view mirror lens subassembly passes through lens mount 7 fixed mounting on the front-view mirror housing 9 of lens mount 7 below, install window protection glass 5 on the front-view mirror housing 9 of front-view mirror lens subassembly left side, rearview mirror 2 include rearview mirror lens subassembly and rear-view mirror housing 16, the rear-view mirror lens subassembly the same with front-view mirror lens subassembly's structure, the rearview mirror lens subassembly passes through lens mount 7 and installs on rear-view mirror housing 16, install window protection glass 5 on the rear-view mirror housing 16 on the right side, be located on the rear-view mirror housing 16 on the left side of rearview mirror lens subassembly installs image sensor board 11, install the image correction cable module 12 on the left side of rearview mirror housing 11, install the image correction module 12 on the left side of rearview mirror housing 11.
Further, the window protection glass 5 is semicircular, a layer of conductive film is plated on the inner wall of the window protection glass 5, the bonding surface of the conductive film and the window protection glass 5 is bonded and overlapped through conductive silica gel, and a layer of antireflection film is plated on the outer wall of the window protection glass 5.
Further, the wide-angle imaging lens 6 is connected to the lens seat 7 through fine threads, a groove is formed in the right side portion of the lens seat 7, the sensor seat 10 adjusts the up-down left-right moving position of the sensor seat in the groove of the lens seat 7 through adjusting screws 17, one adjusting screw 17 is arranged on the upper portion, the lower portion, the left side and the right side of the lens seat 7, and the four adjusting screws 17 are evenly distributed.
Further, a radiator plate 14 is disposed on the left side of the image correction module 12, and a power conversion unit 15 is mounted on a rear mirror housing 16 on the left side of the radiator plate 14.
Further, the image correction module 12 is connected with the image stitching and superimposing module 13, the image correction module 12 and the image stitching and superimposing module 13 are integrally installed on the radiator plate 14 in an up-down stacking manner, and the radiator plate 14 is installed in the rear mirror housing 16.
Further, the power conversion unit 15 includes a power module, a power input end of the power module is connected to a power socket, and an output power socket of the power module is connected to the image sensor board 8, the image correction module 12 and the image stitching and superimposing module 13 through the power cable 3.
Further, the image sensor board 8 of the front view mirror 1 is connected with the image correction module 12 in the rear view mirror through the video cable 4.
The working process of the invention is as follows: the front view observation mirror 1 is arranged in front of the top of the closed vehicle, the rear view observation mirror 2 is arranged behind the top of the closed vehicle to collect and process front and rear sceneries taking the closed vehicle as a reference, and videos of surrounding environment of the closed vehicle are output through processing such as image splicing and character information superposition of the front view observation mirror 1 and the rear view observation mirror 2. The image superposition splice plate on the rearview mirror 2 collects one path of SDI signals, shapes the SDI signals, distributes 3 paths of identical SDI signals by using a digital matrix, outputs the SDI signals after equalization processing, realizes the identical output of 3 paths of signal indexes, and provides the signals for the in-vehicle integrated control terminal display.
The optical systems of the front view observation mirror 1 and the rear view observation mirror 2 adopt 210-degree wide-angle camera lenses 6 to realize the acquisition and processing of 190-degree image information behind a vehicle in front of the vehicle, in order to ensure that an external scene is clearly imaged on a target surface center focal plane of an image sensor plate 8 through the wide-angle camera lenses 6, the wide-angle camera lenses 6 are in fine thread connection with a lens seat 7, imaging focal lengths can be adjusted by adjusting the wide-angle camera lenses 6 forwards and backwards, imaging of the lens can be ensured on the target surface center of the image sensor plate 8 by adjusting four adjusting screws 17, the window protection glass 5 adopts a semicircular arc shape, and a layer of conducting film is plated on the inner wall to enhance electromagnetic interference resistance; the outer wall is plated with an antireflection film to enhance light penetrability.
The rearview mirror 2 is a main mirror of the panoramic mirror, and distorted images acquired and generated by the front viewing mirror 1 and the rearview mirror 2 are respectively corrected, sheared and mirrored in real time through two image correction modules 12 in the rearview mirror, so that the images are images which are in line with normal viewing of human eyes. The image splicing and overlapping module 13 in the rearview mirror 2 adopts a pure hardware structural design, adopts an image compression and digital processing method, compresses two paths of 190-degree pictures of the front viewing mirror 1 and the rearview mirror 2 into one path of signals according to the same proportion, achieves the purpose of observing multiple paths of signals by using one display, and displays and outputs the signals in an upper screen and lower screen dividing mode.
The image splicing and overlapping module 13 also has the advantages that after one path of SDI video signal is shaped, 3 paths of identical SDI signals are distributed by using a digital matrix, and are output after equalization processing, so that 3 paths of high-definition HD-SDI (1280 multiplied by 720 p) video signals with identical signal indexes are output.
The product realizes the function of looking around, and simultaneously, in order to enhance the situation sense of the passengers of the closed vehicle to the external target position, a high azimuth scale line and a low azimuth scale line are overlapped in a display picture, and meanwhile, a communication instruction of a control computer can be received by a sight glass, so that the position information of the target tracked by the war chariot is overlapped in the picture.
The periscope is converted into DC12V power through a power conversion group 15 by a 28V power source externally input through a cable, and the DC12V power is supplied to the front vision scope 1 and the rear vision scope 2 for working, and directly supplies power to the image sensor plate 8, the image correction module 12 and the image splicing and overlapping module 13. The power supply module HZD20D-30S12 adopts a military grade wide-voltage input power supply module and can convert an input power supply in the range of DC 18V-36V into a DC12V power supply required by the system. The output rated power is 20W, the system power consumption requirement is met, meanwhile, a protection circuit is designed on the periphery of the power panel, and the plug connectors are obviously designed for preventing misplug.
The front view observation mirror 1 acquires an image within the range of 190 degrees of the azimuth of the front end of the war chariot, and outputs a distorted video signal to the rear view observation mirror 2 after imaging. The rearview mirror 2 collects images within the range of 190 degrees of the azimuth of the rear end of the war chariot, and after imaging, the images and distorted images input by the front viewing mirror 1 are corrected, sheared and mirrored by the image processing module. The splicing module splices the two images into a picture, and as the installation positions of the front view observation mirror 1 and the rear view observation mirror 2 have baseline distances of two meters, a 360-degree panoramic image is formed at a position away from a vehicle, and a high-low and azimuth scale line is overlapped in the panoramic image; and meanwhile, the periscope receives a war chariot command, superimposes target position information in a picture, and finally outputs a path of high-definition SDI video signal to a war chariot display terminal.
The output image displays the interface of the upper and lower images in the same monitor, the upper image displays the 190-degree image in front of the periscope, and the lower image displays the 190-degree image behind the periscope.
Claims (6)
1. A periscope which is characterized in that: including front view mirror (1) and rear view mirror (2), front view mirror (1) include front view mirror lens subassembly and front mirror casing (9), front view mirror lens subassembly include wide angle camera lens (6), wide angle camera lens (6) pass through fine thread connection on lens holder (7), be provided with the recess in lens holder (7) right side portion, sensor seat (10) are installed in lens holder (7) recess through adjusting screw (17), upper portion, lower part, left side, right side of lens holder (7) all set up an adjusting screw (17), four adjusting screw (17) evenly distributed, install image sensor board (8) on sensor seat (10), front view mirror lens subassembly passes through lens holder (7) fixed mounting on lens holder (7) below front mirror casing (9), install window protection glass (5) on lens holder (7) right side front mirror casing (9), rear view mirror (2) include rear view mirror subassembly and rear view mirror casing (16) through adjusting screw (17), install window protection glass (5) on lens holder (16) the same with lens holder (16) on the casing of rear view mirror lens subassembly, an inflation valve (11) is arranged on a rearview mirror shell (16) positioned on the left side of the rearview mirror lens assembly, an image correction module (12) is arranged on the rearview mirror shell (16) positioned on the left side of the inflation valve (11), and the image correction module (12) is connected with an image sensor plate (8) of a rearview mirror (2) through a video cable (4).
2. A periscope according to claim 1, wherein: the window protection glass (5) is semicircular, a layer of conductive film is plated on the inner wall of the window protection glass (5), the bonding surface of the conductive film and the window protection glass (5) is bonded and overlapped through conductive silica gel, and a layer of antireflection film is plated on the outer wall of the window protection glass (5).
3. A periscope according to claim 1, wherein: the left side of the image correction module (12) is provided with a radiator plate (14), and a power conversion group (15) is arranged on a left rear mirror shell (16) of the radiator plate (14).
4. A periscope according to claim 1, wherein: the image correction module (12) is connected with the image splicing and overlapping module (13), the image correction module (12) and the image splicing and overlapping module (13) are integrally arranged on the radiator plate (14) in an up-down overlapping mode, and the radiator plate (14) is arranged in the rear mirror shell (16).
5. A periscope according to claim 3, wherein: the power conversion group (15) comprises a power module, wherein a power input end of the power module is connected with a power socket, and an output power socket of the power module is connected with the image sensor board (8), the image correction module (12) and the image splicing and superposing module (13) through a power cable (3).
6. A periscope according to claim 1, wherein: the image sensor board (8) of the front view mirror (1) is connected with the image correction module (12) in the rear view mirror through the video cable (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711463699.5A CN107901831B (en) | 2017-12-28 | 2017-12-28 | Week vision observation mirror |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711463699.5A CN107901831B (en) | 2017-12-28 | 2017-12-28 | Week vision observation mirror |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107901831A CN107901831A (en) | 2018-04-13 |
| CN107901831B true CN107901831B (en) | 2023-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711463699.5A Active CN107901831B (en) | 2017-12-28 | 2017-12-28 | Week vision observation mirror |
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| US8982267B2 (en) * | 2011-07-27 | 2015-03-17 | Flextronics Ap, Llc | Camera module with particle trap |
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| US6638216B1 (en) * | 2000-08-30 | 2003-10-28 | Durell & Gitelis, Inc. | Variable view arthroscope |
| JP2003327048A (en) * | 2002-05-14 | 2003-11-19 | Murakami Corp | Rear-view mirror device integrated with camera |
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| Publication number | Publication date |
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| CN107901831A (en) | 2018-04-13 |
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