CN105357487A - Integrated vehicle-mounted night photographing module for law enforcement vehicle and video recording system thereof - Google Patents
Integrated vehicle-mounted night photographing module for law enforcement vehicle and video recording system thereof Download PDFInfo
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- CN105357487A CN105357487A CN201510853007.2A CN201510853007A CN105357487A CN 105357487 A CN105357487 A CN 105357487A CN 201510853007 A CN201510853007 A CN 201510853007A CN 105357487 A CN105357487 A CN 105357487A
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Abstract
The invention discloses an integrated vehicle-mounted night photographing module for a law enforcement vehicle and a video recording system thereof. The system comprises the law enforcement vehicle, photographing modules, an audio module, an information processing module, a display module and a wireless communication module. The law enforcement vehicle photographing modules are arranged in a plurality of grooves on four sides of the vehicle body, and each photographing module is provided with an optical element, a short wave infrared camera, a filter wheel, a detector assembly, a photoelectric signal conversion chip and a digital-to-analog conversion chip in sequence from the outer surface of the groove to the inside. Each photographing module further comprises a drive motor for controlling the filter wheel and a high-power tunable laser, wherein the filter wheel carries a filter of which the pass band is 0.9-2.5 microns. The filter wheels are driven by the drive motor connected with a central processing unit to switch imaging bands. The integrated vehicle-mounted night photographing module and the video recording system thereof has important value for development and application of integrated vehicle-mounted video recording systems of law enforcement vehicles.
Description
[technical field]
The present invention relates to automotive field, video acquisition field and night remote multispectral imaging field, particularly relate to a kind of integrated car for enforcement vehicle and carry photographing module and video recording device thereof night.
[background technology]
Along with the economic development of China and the continuous progress of society, current social contradiction day by day highlights, and the law-enforcing environment that law enforcement agency faces is increasingly sophisticated.Numerous law-executor being in basic unit, often can suffer the enforce the law unreal complaint of counterpart and the maliciously puzzlement such as false accusation.Inventor is by finding passing case study, and owing to lacking strong evidence, truly cannot reduce law enforcement field situation, the situation causing law-executor to suffer wrong in administrative reexamination and law court's hearing process also occurs repeatedly.Therefore, how science and technology is strong alert, and designing and equip a kind of law enforcement evidence obtaining vehicle and the related system equipment with synchronization recording function, is one of key link safeguarding basic unit law enfrocement official legitimate rights and interests.
Although adopt the demand of electronic equipment record enforcing law and attempt long-standing at home, maturation and the application of law-enforcing recorder product concept are in the ascendant, and photographing module also seldom starts practical application at present with integrated combination of carrier.The domestic law-enforcing recorder occurred the earliest generally adds video player simple refit by camera and forms, and its image quality, storage and flying power, appearance design hommization degree and round-the-clock adaptive capacity all cannot meet law enforcement demand.2008, the appearance of TCL company " digital hawk " SDVOI police's law enforcement field information gathering transmission system, made law-enforcing recorder system formally enter law practising operational phase.Subsequently, domesticly have also appeared many portable law enforcement video cameras, and start preliminary law enforcement application.But these photographing modules and register system thereof realize relatively weak further genralrlization and the application often limiting these systems and equipment of ability of effective resolution record at night.In addition, current law enfrocement official assists to carry out law enforcement and joint law enforcement separately by enforcement vehicle and has adaptability and popular style widely in China, therefore, by the combination of enforcement vehicle and Vehicular video acquisition system, exploitation integrated vehicle photographing module and video recording device thereof carry out comprehensive record to law enforcement field and have wide application market and important social value.
Radiothermy infrared imaging realizes high-resolution imaging technique exploitation round the clock integrated vehicle night camera module and has important practice significance to solving the problem.The service band of short-wave infrared imager is generally at 0.9-2.5 micron, and its image-forming principle is identical with human eye visual light imaging, and be all captured target reverberation, therefore its imaging effect is close to visual imaging, is easy to target identification when monitoring in real time.Much atural object has abundant spectral characteristic at short infrared wave band, so carry out multispectral imaging at this spectral coverage, and can effectively realize target identification.In addition, short infrared comparatively visible wavelength is long, and the impact by air, aerosol and molecule is relatively little, and therefore atmospheric transmittance is higher, and observed range is far away, and possesses the ability necessarily penetrating smog.But the spectral detection device such as existing short-wave infrared multispectral camera or imaging spectrometer, generally all only utilize sunlight to realize daylight observation, can not be used for the occasion needing to monitor round the clock.
The present invention proposes to use that energy is large, the good high-power tunable laser of convergence property realizes nighttime imaging function as illuminating imager light source; play the characteristic of short-wave infrared long-range detection; extend night-time observation distance; the particularly important is; short-wave infrared laser can not be human eye finding; make instrument have very strong disguise, enforcing the law night to law enfrocement official has good protective effect.
[summary of the invention]
For above technical problem, the present invention proposes a kind of integrated vehicle night camera module for enforcement vehicle and video recording device thereof.
The technical scheme that the present invention proposes for its technical problem of solution is:
For integrated vehicle night camera module and the video recording device thereof of enforcement vehicle, comprise enforcement vehicle, photographing module, audio-frequency module, message processing module, display module, wireless communication module, described enforcement vehicle vehicle body surrounding is provided with the groove location of multiple installation camera, and each groove location is provided with one group of photographing module, and described photographing module is disposed with optical element from outside to inside from fluted external surface, short-wave infrared camera, optical filter wheel, detector assembly, photoelectric signal transformation chip and analog-digital chip, described photographing module also comprises one for controlling CD-ROM drive motor and a high-power tunable laser of filter wheel, and described message processing module is by central controller and the L2 cache be connected with described central controller respectively, mass storage device forms, and described display module comprises terminal presentation facility, Video decoding module and man-machine interaction I/O Interface, described wireless communication module comprises signal emission module and signal receiving module.
Further, the feature of described photographing module is, the outer surface of described optical element is positioned at enforcement vehicle vehicle body outside surface curved surface, forms complete streamlined curved surface with described enforcement vehicle vehicle body outside surface, preferably, described optical element is made up of implosion guard.Further, described optical element comprises the combination of at least two optical surfaces, and described optical element can be flat glass lens, also can be convex lens or concavees lens, or their combination.
Further, described optical filter wheel is arranged between described short-wave infrared camera lens and described detector assembly, by rotating the switching realized between different spectral coverage, described optical filter wheel carries at least six bandpass filters, concrete number by difference enforce the law application scenario, monitor the law-enforcing environment parameters such as regional background according to multispectral imaging application demand determine, the passband wave band of described filter is distributed in 0.9-2.5 micron to be needed in imaging band.Preferably, described optical filter wheel is changed by a drive motor, this CD-ROM drive motor is equipped with drive circuit, this driving electricity circuit is connected with the central processing unit of described message processing module, and configure resolver as required as motor locating device, during work, CD-ROM drive motor accepts central processing unit instruction, drives optical filter wheel to rotate thus realizes switching imaging band.Preferred, this CD-ROM drive motor adopts stepper motor or d.c. motor.
Described probe assembly is connected with the central processing unit of described message processing module respectively with described high-power tunable laser, and be equipped with independent controling circuit respectively, during work, above-mentioned control circuit accepts central processing unit instruction simultaneously respectively, configures the running parameter of Auto-matching probe assembly and power adjustable laser device according to instruction.Further, described its emission wavelength of power adjustable laser device is adjustable in whole imaging spectral coverage 0.9-2.5 micron, and illumination light wavelength should avoid Atmospheric Absorption peak simultaneously, and the illumination angle of divergence is identical with imaging viewing field angle.
The video optical signalling of the probe assembly collection in described photographing module converts digital video signal in real time by described photoelectric signal transformation chip, analog-digital chip process, enters L2 cache, mass storage device after message processing module is by central controller process.Further, above-mentioned digital video signal by Video decoding module simultaneous display on terminal presentation facility, or can pass the general headquarters control room at law enfrocement official place back in real time by signal emission module, or carries out the synchronous process of above-mentioned two steps simultaneously.
Described message processing module is made up of with the L2 cache be connected with described central controller respectively, mass storage device central controller.The live video gathered by photographing module and the audio signal that gathered by audio-frequency module by after the central processing unit process of message processing module, stored by high speed L2 cache and within buffer memory release time in real time or time delay be stored in mass storage device.This mass storage can adopt the memory of the applicable record digital signals such as disk storage, magnetic disc store and solid-state memory, and preferably, this mass storage adopts solid-state memory.The solid-state memory of excellent performance has the advantages such as antidetonation, explosion-proof, waterproof, can protect recorded information.
Described display module comprises terminal presentation facility, Video decoding module and man-machine interaction I/O Interface.The live video that photographing module gathers and the signal that audio-frequency module gathers are by after the central processing unit process of message processing module, while being stored in mass storage device, by Video decoding module simultaneous display on terminal presentation facility, video acquisition control inerface is provided by the law enfrocement official for being positioned at enforcement vehicle, law enfrocement official can input instruction by man-machine interaction I/O Interface to central processing unit, thus control photographing module carries out automatically gathering and identification automatically.This terminal presentation facility can be arranged on any rational position of enforcement vehicle, preferably, can be arranged on steering wheel central authorities, front passenger's seat front or back seat front, or be arranged on the inside of enforcement vehicle with the form of autonomous system.This terminal presentation facility is optional, and those skilled in the art can install as required or not install described terminal presentation facility.
Described wireless communication module comprises signal emission module and signal receiving module.Described signal emission module is connected with described central processing unit, the live video that photographing module gathers and the signal that audio-frequency module gathers are by after the central processing unit process of message processing module, be stored in mass storage device and by while Video decoding module simultaneous display is on terminal presentation facility, can be passed back the general headquarters control room at law enfrocement official place by signal emission module in real time, thus realize general headquarters control room to the tracking understanding of law enforcement field law enforcement situation and control in real time.Described signal receiving module is connected with central processing unit, and central processing unit can accept the signal in general headquarters control room thus realize control to photographing module.It should be noted that, the control program of integrated vehicle night camera module provided by the invention and video recording device thereof, those skilled in the art can be according to actual needs, flexible allocation is carried out to realize more multi-scheme without creative work, such as can determine photographing module as required only by enforcement vehicle internal control, only controlled by general headquarters control room, or accept the two control etc. simultaneously.
For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made.Based on information provided by the invention, those of ordinary skill in the art, under the prerequisite of not making creative work, reach with same or similar means the every other embodiment that constructed effect obtains, belong to the scope of protection of the invention.
[accompanying drawing explanation]
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only a kind of embodiment of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is that use is provided by the invention for the integrated vehicle night camera module of enforcement vehicle and the structural representation of video recording device thereof.
Fig. 2 is a kind of structural representation for the integrated vehicle night camera module of enforcement vehicle and the vehicle-mounted pick-up module of video recording device thereof provided by the invention.
[embodiment]
Below in conjunction with the attached Fig. 1 and 2 in the present invention, be clearly and completely described the technical scheme in the present invention, obviously, described is only one of them preferred embodiment of the present invention, but the present invention includes but be not limited to following embodiment.
See the structural representation that Fig. 1 is the integrated vehicle video recording device for enforcement vehicle provided by the invention, comprise enforcement vehicle 10, photographing module 20, audio-frequency module 30, message processing module 40, display module 50, wireless communication module 60.
Described message processing module 40 is made up of with the L2 cache 402 be connected with described central controller 401 respectively, mass storage device 403 central controller 401.After the live video gathered by photographing module 20 and the audio signal gathered by audio-frequency module 30 are processed by the central processing unit 401 of message processing module 40, stored by high speed L2 cache 402 and within buffer memory release time in real time or time delay be stored in mass storage device 403.This mass storage 403 adopts the solid-state memory of antidetonation, explosion-proof, waterproof, as permanent magnet solid-state memory.
Described display module 50 comprises Video decoding module 501, terminal presentation facility 502 and man-machine interaction I/O Interface 503, and described Video decoding module 501 and man-machine interaction I/O Interface 503 are interconnected respectively with central processing unit 401 and terminal presentation facility 502.After the live video that photographing module 20 gathers and the signal that audio-frequency module 30 gathers are processed by the central processing unit 401 of message processing module 40, while being stored in mass storage device 403, by Video decoding module 501 simultaneous display on terminal presentation facility 502, video acquisition control inerface is provided by the law enfrocement official for being positioned at enforcement vehicle, law enfrocement official can input instruction by man-machine interaction I/O Interface 503 pairs of central processing units 401, thus control photographing module 20 automatically gather, auto-focusing, tracking focusing and automatically identify.This terminal presentation facility 502 is arranged on the steering wheel central authorities of enforcement vehicle.
Described wireless communication module 60 comprises signal emission module 601 and signal receiving module 602.Described signal emission module 601 is connected with described central processing unit 401, after the live video that photographing module 20 gathers and the signal that audio-frequency module 30 gathers are processed by the central processing unit 401 of message processing module 40, be stored in mass storage device 403 and by while Video decoding module 501 simultaneous display is on terminal presentation facility 502, can be passed back the general headquarters control room at law enfrocement official place by signal emission module 601 in real time, thus realize general headquarters control room to the tracking understanding of law enforcement field law enforcement situation and control in real time.Described signal receiving module 602 is connected with central processing unit 401, central processing unit 401 can accept the signal in general headquarters control room thus realize control to photographing module 20, in the present embodiment, photographing module 20 can by enforcement vehicle internal control with by general headquarters' control room co-controlling.
See Fig. 2 a kind of structural representation for the integrated vehicle night camera module of enforcement vehicle and the vehicle-mounted pick-up module of video recording device thereof provided by the invention.Described photographing module 20 is made up of the short-wave infrared camera 202 connected successively, optical filter wheel 203, detector assembly 204, photoelectric signal transformation chip 205 and analog-digital chip 206, after the video optical signalling that short-wave infrared camera 202 gathers filters non-imaged band signal by optical filter wheel 203, process through detector assembly 204 and photoelectric signal transformation chip 205 and analog-digital chip 206 and convert digital video signal in real time.Described photographing module is installed on the groove location 101 being arranged on enforcement vehicle surrounding, each groove location is provided with one group of photographing module 20, described photographing module 20 is disposed with optical element 201, short-wave infrared camera 202, optical filter wheel 203, detector assembly 204, photoelectric signal transformation chip 205 and analog-digital chip 206 from outside to inside from fluted external surface, and described photographing module 20 also comprises one for controlling CD-ROM drive motor 207 and a high-power tunable laser 208 of filter wheel.
The outer surface of above-mentioned optical element 201 is positioned at enforcement vehicle 10 vehicle body outside surface curved surface AA ', complete streamlined curved surface is formed with described enforcement vehicle vehicle body outside surface, in the present embodiment optical element be two pieces of lens making of implosion guard according to from fluted external surface from outside to inside order be combined and form, in the inner part be concavees lens 2012, in the outer part be convex lens 2011.
Above-mentioned optical filter wheel 203 is arranged between described short-wave infrared camera lens 202 and described detector assembly 204, by rotating the switching realized between different spectral coverage.This optical filter wheel 203 carries six bandpass filters, the passband wave band of filter is respectively 0.9,1.3,1.6,1.9,2.2,2.5 microns.Optical filter wheel 203 drives conversion by CD-ROM drive motor 207, this CD-ROM drive motor is equipped with drive circuit, this driving electricity circuit is connected with the central processing unit 401 of described message processing module 40, and configure resolver as required as motor locating device, during work, CD-ROM drive motor 207 accepts central processing unit 401 instruction, drives optical filter wheel 203 to rotate thus realizes switching imaging band.This CD-ROM drive motor adopts stepper motor to make.
Probe assembly 204 is connected with the central processing unit 401 of message processing module 40 respectively with high-power tunable laser 208, and be equipped with independent controling circuit respectively, during work, above-mentioned control circuit accepts central processing unit 401 instruction simultaneously respectively, configures the running parameter of Auto-matching probe assembly 204 and high-power tunable laser 208 according to instruction.The emission wavelength of high-power tunable laser 208 is adjustable at whole imaging spectral coverage, and illumination light wavelength should avoid Atmospheric Absorption peak simultaneously, and the illumination angle of divergence is identical with imaging viewing field angle.
Power adjustable laser device adopts Nd:YAG laser to realize, shoot laser single pulse energy is 200mJ, observation wavelength is 2.2 microns, laser beam divergence equals the angle of visual field and is 50mrad, the non-0.1mrad in instantaneous field of view angle, target albedo 0.4, quantum efficiency 0.8, detector equivalent noise is 45e-, and observed range is 0.5-1km.Through atmospheric characteristic analysis and theory calculate, if do not consider, night-glow of the sky affects, and single image signal to noise ratio is about about 30, meets the high resolution object identification of law enfrocement official at night to law-enforcing environment under low light conditions and the needs of Object tracking.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made.
Claims (6)
1., for integrated vehicle night camera module and the video recording device thereof of enforcement vehicle, comprise enforcement vehicle, photographing module, audio-frequency module, message processing module, display module, wireless communication module, described enforcement vehicle vehicle body surrounding is provided with the groove location of multiple installation camera, and each groove location is provided with one group of photographing module, and described photographing module is disposed with optical element from outside to inside from fluted external surface, short-wave infrared camera, optical filter wheel, detector assembly, photoelectric signal transformation chip and analog-digital chip, described photographing module also comprises one for controlling CD-ROM drive motor and a power adjustable laser device of filter wheel, and described message processing module is by central controller and the L2 cache that is connected respectively with described central controller, mass storage device forms, and described display module comprises terminal presentation facility, Video decoding module and man-machine interaction I/O Interface, described wireless communication module comprises signal emission module and signal receiving module.
2. a kind of integrated vehicle night camera module for enforcement vehicle according to claim 1 and video recording device thereof, it is characterized in that, the outer surface of the optical element of described photographing module is positioned at described enforcement vehicle vehicle body outside surface curved surface, forms complete streamlined curved surface with described enforcement vehicle vehicle body outside surface.
3. according to a kind of integrated vehicle night camera module for enforcement vehicle and the video recording device thereof of claim 1 or 2, it is characterized in that, the optical element of described photographing module comprises the combination of at least two optical surfaces, and described optical element is the combination of convex lens and concavees lens.
4. a kind of integrated vehicle night camera module for enforcement vehicle according to claim 3 and video recording device thereof, it is characterized in that, described optical filter wheel is arranged between described short-wave infrared camera lens and described detector assembly, described optical filter wheel carries at least six bandpass filters, the passband wave band of described filter is 0.9-2.5 micron.
5. a kind of integrated vehicle night camera module for enforcement vehicle according to claim 3 and video recording device thereof, it is characterized in that, described optical filter wheel is connected with the central processing unit of described message processing module the drive motor conversion be connected by one and realizes switching imaging band.
6. a kind of integrated vehicle night camera module for enforcement vehicle according to claim 5 and video recording device thereof, it is characterized in that, described power adjustable laser device is connected with described central processing unit, and described its emission wavelength of power adjustable laser device is 0.9-2.5 micron.
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| CN201510853007.2A CN105357487A (en) | 2015-11-28 | 2015-11-28 | Integrated vehicle-mounted night photographing module for law enforcement vehicle and video recording system thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2578180A (en) * | 2018-04-13 | 2020-04-22 | Hensoldt Optronics Gmbh | Camera system |
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| CN102997996A (en) * | 2012-11-30 | 2013-03-27 | 中国科学院上海技术物理研究所 | Shortwave infrared day and night remote multispectral imager and imaging method |
| US20150172518A1 (en) * | 2013-12-13 | 2015-06-18 | Convoy Technologies, LLC, | Monitoring system and method including selectively mountable wireless camera |
| CN104735408A (en) * | 2015-02-06 | 2015-06-24 | 广东光阵光电科技有限公司 | Dead-corner-free vehicle monitoring method and system for police |
| CN204795330U (en) * | 2015-07-28 | 2015-11-18 | 华南师范大学 | On -vehicle infrared night vision camera with control by temperature change function |
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2015
- 2015-11-28 CN CN201510853007.2A patent/CN105357487A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102997996A (en) * | 2012-11-30 | 2013-03-27 | 中国科学院上海技术物理研究所 | Shortwave infrared day and night remote multispectral imager and imaging method |
| US20150172518A1 (en) * | 2013-12-13 | 2015-06-18 | Convoy Technologies, LLC, | Monitoring system and method including selectively mountable wireless camera |
| CN104735408A (en) * | 2015-02-06 | 2015-06-24 | 广东光阵光电科技有限公司 | Dead-corner-free vehicle monitoring method and system for police |
| CN204795330U (en) * | 2015-07-28 | 2015-11-18 | 华南师范大学 | On -vehicle infrared night vision camera with control by temperature change function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2578180A (en) * | 2018-04-13 | 2020-04-22 | Hensoldt Optronics Gmbh | Camera system |
| GB2578180B (en) * | 2018-04-13 | 2022-08-31 | Hensoldt Optronics Gmbh | Camera system |
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Application publication date: 20160224 |