CN202026407U - Vehicular wide-view-field low-light night vision system - Google Patents
Vehicular wide-view-field low-light night vision system Download PDFInfo
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- CN202026407U CN202026407U CN2011201495732U CN201120149573U CN202026407U CN 202026407 U CN202026407 U CN 202026407U CN 2011201495732 U CN2011201495732 U CN 2011201495732U CN 201120149573 U CN201120149573 U CN 201120149573U CN 202026407 U CN202026407 U CN 202026407U
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Abstract
The utility model relates to a vehicular wide-view-field low-light night vision system which comprises a video acquisition part and a video control and display part, as well as a power supply module, wherein the video acquisition part comprises at least two low-light cameras and an image processing module, and each low-light camera is provided with a near-infrared transmission filter; the video control and display part comprises a displayer and a signal control module; and optical axes of the low-light cameras are in the same horizontal plane, the included angle alpha of the optical axes of the low-light cameras ranges from 30 to 55 degrees, and the imaging angle omega of the low-light camera ranges to 35 degrees to 60 degrees. The vehicular wide-view-field low-light night vision system adopts a near-infrared laser as a supplementary light source and then uses the infrared transmission filter, thus realizing auxiliary driving in low light at day and night. On the aspect of a large view field, the system is installed by adopting a plurality of low-light cameras according to a certain structure, and then the image processing module is utilized for splicing multipath images, thereby solving the difficulty on vehicles executing special tasks and the wide view field under complicated road situations.
Description
Technical field
The utility model belongs to the night observation device technical field, is specifically related to a kind of vehicle-mounted wide visual field lll night vision system.
Background technology
Balanced growth exceedes 15% according to statistics Chinese automobile industry the five-year, and is along with popularizing of automobile, also more and more higher to the requirement of the safe practice of automobile.At the nighttime driving secure context, each famous brand automobile has successively adopted relevant Night View Assist to improve the nighttime driving safety of automobile on its high-end series automobiles at present.For example China No. 200620126539.2 patent disclosures a kind of the infrared of means of transportation or far infrared thermal imaging system of being used for, can receive the place ahead 300m with the infrared ray of interior object emission and form dynamic image, 36 ° horizontal wide-angle infrared lens is used in this invention; No. 200710304208.2 patent disclosures of China a kind of vehicle auxiliary night viewing system that adopts infrared semiconductor laser light source, the infrared semiconductor laser that this system uses has the field range of 25～40 ° of the collimation angles of divergence.
But this type of night vision product all is various brands automobiles to be designed at specific vehicle, and its visual field is all smaller.The BMW night vision system is lower than in the speed of a motor vehicle under 80 kilometers/hour the situation, the thermal imaging camera can only show the information of heating region, differ very big with real image, and only have the investigative range of 36 ° horizontal field of view, along with the corresponding scene that further reduces to cover 24 ° of scopes of vehicle front in the raising visual field of speed.Therefore make this type systematic can't be fit to carry out the vehicle of special duty and the requirement of required wide visual field when complex road condition.Existing simultaneously on-vehicle night vision product can be opened infrared light supply mostly when work, so imaging is active, does not meet the requirement that needs passive system under the specific environment like this.Therefore setting up a cover has the strong and powerful vehicle-mounted lll night vision system in wide visual field, low cost, applicability and is of great immediate significance.
Summary of the invention
The purpose of this invention is to provide a kind of vehicle-mounted wide visual field lll night vision system, little and the required wide visual field requirement can't satisfy special vehicle and complex road condition time the at existing on-vehicle night vision instrument visual field exactly, and provide a kind of vehicle-mounted lll night vision system of wide visual field, satisfy vehicle hidden travelling at night, effectively improve the coefficient of safety of automobile at night running to the demand of the place ahead traffic information and navigation information.
Vehicle-mounted wide visual field of the present utility model lll night vision system, comprise that video obtains part and video control display part, described video acquisition unit branch includes the image processing module that is no less than low-light video camera 2, that the near-infrared transmission filter plate is installed and handles the low-light video camera photographic images, and the power module of powering for whole system; Described video control display part includes display and control of video is obtained, the signal controlling module of display mode, and the signal controlling module connects display and video obtains part; Wherein the optical axis of low-light video camera is on same horizontal plane, and the optical axis included angle α between low-light video camera is 30～55, and low-light video camera angle of image ω is 35～60 °.
In order to obtain bigger visual field, consider the needs of vehicle-mounted installing space simultaneously, the number of above-mentioned low-light video camera is 3.
In order to adopt aggressive mode to come imaging, video obtains part also can include the near-infrared laser light source, described near-infrared laser light source comprises laser, is connected with laser, laser is driven the laser driver that sends near-infrared laser, before being installed in laser, be used to increase the optical lens of the angle of divergence, wherein the angle of divergence of optical lens is 30 °.
The near-infrared transmission filter plate also is installed before the above-mentioned optical lens.
Described low-light video camera is the low-light ccd video camera of black and white, and its input light intensity is below 0.001 lx, and the camera lens of low-light video camera is a tight shot.
Described near-infrared transmission filter plate parameter is T=50%, 800 ± 30nm or T＞85%, 800～1200nm.
Described power module is a power-switching circuit, and for video camera, near-infrared laser light source and image processing processing module produce the power supply that satisfies the voltage and current requirement, its input power supply is an automobile batteries.
Above-mentioned image processing module include with vision signal be converted into digital signal video a/d converter, be connected with video a/d converter, digital signal is spliced into the dsp processor of standard rgb signal and the video d/a transducer of processing DSP output signal of processor, and wherein the dsp processor periphery has data storage SDRAM, program storage FLASH and CPLD.
Signal controlling module in the video control display part connects described display and video obtains part, the obtaining mode of control of video and the demonstration of video.The obtaining mode of video is divided into: active and passive two kinds of patterns, and the aggressive mode near-infrared light source is opened, and Passive Mode is for directly utilizing the low-light level imaging at night.
System of the present utility model adopts the light source of near-infrared laser as light filling, thereby has realized daytime and the night driver assistance during low-light by the infrared transmission filter plate then.Add the infrared transmission filter plate and can prevent the eye injury of the red near-infrared laser that exposes to the sun to the outer animal of car, filter plate can prevent effectively that the night vision system that strong illumination causes when two cars cross is over-exposed, prevents image blurring simultaneously.Adopt plural low-light video camera to install in system of the present utility model aspect the big visual field by certain structure, the image that utilizes described image processing module that different low-light video camera is taken then splices, thus solve the vehicle of carrying out special duty and when complex road condition to the difficult problem of wide visual field.System of the present utility model has initiatively and passive two kinds of patterns simultaneously, switches by the signal controlling implementation pattern, realizes that the no light source under the specific environment is driven.The utility model adopts photoelectric technology and computer technology to combine, and makes the on-vehicle night vision system effectively vehicle front scene to be presented on the display screen.The characteristics of big visual field will make the driver more effectively obtain required traffic information, reach human eye direct-view effect, effectively improve the coefficient of safety of automobile at night running.
Description of drawings
Fig. 1 general system set-up schematic diagram of the present utility model.
Fig. 2 image processing module structural representation of the present utility model.
Fig. 3 low-light video camera of the present utility model installation site schematic diagram.
Fig. 4 near-infrared laser light-source structure of the present utility model schematic diagram.
Wherein: 1, low-light video camera 2, filter plate 3, image processing module 4, power module 5, display 6, signal controlling module 7, near-infrared laser light source 31, video a/d converter 32, dsp processor 33, video d/a transducer 34, data storage SDRAM 35, program storage FLASH36, CPLD 71, laser 72, laser driver 73, optical lens.
Embodiment
Below in conjunction with accompanying drawing vehicle-mounted wide visual field of the present utility model lll night vision system is described in detail.
Vehicle-mounted wide visual field of the present utility model lll night vision system comprises that video obtains part and video is controlled the display part.As shown in Figure 1, video obtains part and is installed in the single-piece frame, the surface of casing is provided with the viewfinder window of launch window and a plurality of low-light video camera 1 of near-infrared laser light source 7, each window distributes and is embedded with filter plate 2, be the near-infrared transmission filter plate, its parameter is T=50% 800 ± 30nm or T＞85%800～1200nm.Casing the inside is built-in near-infrared laser light source 7, a plurality of low-light video camera 1, image processing module 3 and the power module 4 of powering for whole system.Described low-light video camera 1 is the low-light ccd video camera of black and white, and its input light intensity is below 0.001 lx, and the camera lens of low-light video camera 1 is a tight shot.With the example that is arranged as of three low-light video camera 1, as shown in Figure 3, the optical axis of low-light video camera becomes a covering of the fan on same horizontal plane, and the optical axis included angle angle [alpha] of low-light video camera 1 is 30～55 °, and low-light video camera imaging angle ω is 35～60 ° (Fig. 3).
Video control display part has display 5 and signal controlling module 6, the 6 main effects of signal controlling module are switches of near-infrared excitation light source 7 and display 5, cover at needs and to travel in particular cases, can close near-infrared excitation light source 7, be converted to passive work mode, system will directly utilize extraneous low-light level imaging like this, become passive system, prevent to be detected.And when situation allows and during misty rain weather, can open near-infrared excitation light source 7, be converted to active work mode.
Near-infrared laser light source 7 comprises laser 71, is connected with laser as shown in Figure 4, and laser is driven the laser driver 72 that sends near-infrared laser, and the optical lens 73 that is used to increase the angle of divergence.The low-angle laser beam of laser emission reaches 30 ° through the optical lens 73 back angles of divergence, makes the laser radiation scope bigger, and wherein optical lens 73 is for dispersing camera lens.
Claims (10)
1. vehicle-mounted wide visual field lll night vision system, it is characterized in that including video and obtain part and video control display part, described video acquisition unit branch includes the image processing module (3) that is no less than low-light video camera 2, that near-infrared transmission filter plate (2) are installed (1) and handles low-light video camera (1) photographic images, and the power module (4) of powering for whole system; Described video control display part includes display (5) and control of video is obtained, the signal controlling module of display mode (6), and signal controlling module (6) connects display (5) and video obtains part; Wherein the optical axis of low-light video camera (1) is on same horizontal plane, and the optical axis included angle α between low-light video camera (1) is 30～55 °, and low-light video camera (1) angle of image ω is 35～60 °.
2. night vision system as claimed in claim 1, the number that it is characterized in that described low-light video camera (1) is 3.
3. night vision system as claimed in claim 1 is characterized in that described video acquisition unit branch includes near-infrared laser light source (7).
4. night vision system as claimed in claim 3, it is characterized in that described near-infrared laser light source (7) comprises laser (71), is connected with laser (71), laser (71) is driven the laser driver (72) that sends near-infrared laser, laser (71) is preceding with being installed in, and is used to increase the optical lens (73) of the angle of divergence.
5. night vision system as claimed in claim 1, the angle of divergence that it is characterized in that described optical lens (73) is 30 °.
6. as claim 4 or 5 described night vision systems, it is characterized in that the preceding near-infrared transmission filter plate (2) that is equipped with of described optical lens (73).
7. night vision system as claimed in claim 1 is characterized in that described low-light video camera (1) is the low-light ccd video camera of black and white, and its input light intensity is below 0.001 lx.
8. as claim 1 or 7 described night vision systems, the camera lens that it is characterized in that described low-light video camera (1) is a tight shot.
9. night vision system as claimed in claim 1, the parameter that it is characterized in that described near-infrared transmission filter plate (2) are T=50%, 800 ± 30nm or T＞85%, 800～1200nm.
10. night vision system as claimed in claim 1, it is characterized in that described image processing module (3) include with vision signal be converted into digital signal video a/d converter (31), be connected with video a/d converter (31), digital signal is spliced into the dsp processor (32) of standard rgb signal and the video d/a transducer (33) of processing DSP processor (32) output signal, and wherein dsp processor (33) periphery has data storage SDRAM (34), program storage FLASH (35) and CPLD (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011201495732U CN202026407U (en) | 2011-05-12 | 2011-05-12 | Vehicular wide-view-field low-light night vision system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011201495732U CN202026407U (en) | 2011-05-12 | 2011-05-12 | Vehicular wide-view-field low-light night vision system |
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| CN202026407U true CN202026407U (en) | 2011-11-02 |
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| CN2011201495732U Expired - Lifetime CN202026407U (en) | 2011-05-12 | 2011-05-12 | Vehicular wide-view-field low-light night vision system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745139A (en) * | 2012-07-24 | 2012-10-24 | 苏州工业园区七星电子有限公司 | Vehicle night driving assistance system |
| CN106973262A (en) * | 2017-03-07 | 2017-07-21 | 广州飞歌汽车音响有限公司 | A kind of night vision video recording system based on low-light level sensor |
| CN113739927A (en) * | 2021-07-26 | 2021-12-03 | 武汉高德智感科技有限公司 | Infrared image display method and system |
| CN113879234A (en) * | 2021-10-27 | 2022-01-04 | 北京星箭长空测控技术股份有限公司 | Special car assistant driving positioning system |
-
2011
- 2011-05-12 CN CN2011201495732U patent/CN202026407U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745139A (en) * | 2012-07-24 | 2012-10-24 | 苏州工业园区七星电子有限公司 | Vehicle night driving assistance system |
| CN106973262A (en) * | 2017-03-07 | 2017-07-21 | 广州飞歌汽车音响有限公司 | A kind of night vision video recording system based on low-light level sensor |
| CN113739927A (en) * | 2021-07-26 | 2021-12-03 | 武汉高德智感科技有限公司 | Infrared image display method and system |
| CN113879234A (en) * | 2021-10-27 | 2022-01-04 | 北京星箭长空测控技术股份有限公司 | Special car assistant driving positioning system |
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Granted publication date: 20111102 |