CN105516616A - Integrated vehicle-mounted camera module applied to law enforcement vehicle and video recording system thereof - Google Patents
Integrated vehicle-mounted camera module applied to law enforcement vehicle and video recording system thereof Download PDFInfo
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- CN105516616A CN105516616A CN201510853040.5A CN201510853040A CN105516616A CN 105516616 A CN105516616 A CN 105516616A CN 201510853040 A CN201510853040 A CN 201510853040A CN 105516616 A CN105516616 A CN 105516616A
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- video recording
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- 230000003287 optical effect Effects 0.000 claims abstract description 31
- 230000003993 interaction Effects 0.000 claims abstract description 9
- 238000004891 communication Methods 0.000 claims abstract description 8
- 238000012545 processing Methods 0.000 claims description 34
- 230000009466 transformation Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 238000011161 development Methods 0.000 abstract description 2
- 238000003384 imaging method Methods 0.000 abstract description 2
- 230000010365 information processing Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 238000004148 unit process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
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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
- H04N23/90—Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
- B60R11/0211—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for record carriers apparatus, e.g. video recorders, tape players or CD players
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Mechanical Engineering (AREA)
- Studio Devices (AREA)
Abstract
The invention discloses an integrated vehicle-mounted camera module applied to a law enforcement vehicle and a video recording system thereof. The system comprises the law enforcement vehicle, camera modules, an audio module, an information processing module, a display module and a wireless communication module, wherein a plurality of grooves for mounting cameras are formed around a vehicle body of the law enforcement vehicle; a group of camera modules are arranged in each of the grooves; the camera modules are provided with optical elements, cameras, photoelectric signal conversion chips and digital-to-analog conversion chips in sequence from outsides to insides on outer surfaces of the grooves; and the camera modules further comprise micro motors for controlling the optical elements. A law enforcement officer can realize adjustment of the camera modules through a man-machine interaction interface or a wireless control mode, so that imaging areas and accuracy of the camera modules can be controlled as required. The integrated vehicle-mounted camera module has an important value to the development of an integrated vehicle-mounted video recording system of the law enforcement vehicle.
Description
[technical field]
The present invention relates to automotive field and video acquisition field, particularly relate to a kind of integrated vehicle photographing module for enforcement vehicle and video recording device thereof.
[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.
Meanwhile, how correctly effectively to enforce the law, how to increase law enforcement agency and the communicative channel of enforce the law counterpart and the general public, be the requirement of the law-enforcing ranks self, be also alleviation public misunderstanding, promote social progress, more harmonious demand.And advance law enforcement things open, law enforcement agency and personnel's law enforcement are exercised supervision, also requires the law enforcement evidence obtaining vehicle that truly can reflect law enforcement field situation and related system equipment matches.Therefore, social demand widely has also just been had for the Train-borne recorder of enforcement vehicle and relevant device systematic difference thereof.
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, TCL company releases " digital hawk " SDVOI police's law enforcement field information gathering transmission system, this product set shooting, photograph, intercom three functions, 3-4 hour can be taken continuously, good portability, shockproof anti-fight, further provided with " file differentiated control " system aiming at law enfrocement official's exploitation simultaneously, by arranging authority, achieving photographer and being separated with manager, preventing image data by people for revising.The appearance of this system, makes 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; the counterpart that cannot prevent from when there is incident of resisting law by violence suffering being enforced the law sabotages or malice is grabbed for these photographing modules and register system thereof; the legitimate rights and interests of law enfrocement official cannot be protected; by carrying out telecommunication to send police strength in time with law enfrocement official place tissue, thus further genralrlization and the application of these systems and equipment cannot be limited.
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.
[summary of the invention]
For above technical problem, the present invention proposes a kind of integrated vehicle photographing module for enforcement vehicle and video recording device thereof.
The technical scheme that the present invention proposes for its technical problem of solution is:
A kind of integrated vehicle photographing module for enforcement vehicle and video recording device thereof, 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, each groove location is provided with one group of photographing module, described photographing module is disposed with optical element from outside to inside from fluted external surface, camera, photoelectric signal transformation chip and analog-digital chip, described photographing module also comprises a micro motor for control both optical element, described message processing module is by central controller and the L2 cache be connected with described central controller respectively, mass storage device forms, 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.
Preferably, described optical element be by two pieces of lens according to from fluted external surface from outside to inside order be combined and form, in the inner part be concavees lens, in the outer part be convex lens, the combination of described optical surface is suitable for providing at least one adjustable focus, and the combination of described optical surface is suitable for making the focal length of described adjustable focus depend on the mutual alignment of described optical surface.This lens combination defines the effect of similar peephole, is combined, can expand the recording interval of camera by convex lens and concavees lens to the refraction of incident ray.
Preferred, the relative position of described optical element can be regulated by a micro motor, thus changing the focal length of described adjustable focus, the dynamic mapping realizing the combination of described optical surface is to realize the effect of the wide-angle record of photographing module, auto-focusing and tracking focusing.
Further, described micro motor is connected with the central processing unit of described message processing module and controls by it.Further, described micro motor is stepless time adjustment motor.
Described photographing module is made up of the camera connected successively, ccd signal conversion chip and A/D analog-digital chip, and the video optical signalling of camera collection converts digital video signal in real time by ccd signal conversion chip and the process of A/D analog-digital chip.
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 automatically gather, auto-focusing, tracking focusing and automatically identify.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 photographing 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 photographing 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 photographing 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 photographing 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 camera 202 connected successively, ccd signal conversion chip 203 and A/D analog-digital chip 204, and the video optical signalling that camera 201 gathers is processed by ccd signal conversion chip 202 and A/D analog-digital chip 203 and converts 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, camera 202, photoelectric signal transformation chip 203 and analog-digital chip 204 from outside to inside from fluted external surface, and described photographing module 20 also comprises a micro motor 205 for control both optical element.
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.This lens combination provides an adjustable focus, and can carry out stepless time adjustment by the focal length of electrodeless control micro motor 205 to described adjustable focus, thus realizes the effect of the wide-angle record of photographing module, auto-focusing and tracking focusing.Described micro motor 205 is connected with the central processing unit 401 of message processing module 40 and controls by it.The adjustment that law enfrocement official can realize micro motor 205 by human-computer interaction interface 503 or reception of wireless signals module 602, thus control imaging region and the precision of photographing module as required.
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 (7)
1. the integrated vehicle photographing module for enforcement vehicle and video recording device thereof, comprise enforcement vehicle, photographing module, audio-frequency module, message processing module, display module, wireless communication module, described message processing module is by central controller and the L2 cache that is connected respectively with described central controller, mass storage device forms, 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, it is characterized in that, described enforcement vehicle vehicle body surrounding is provided with the groove location of multiple installation camera, each groove location is provided with one group of photographing module, described photographing module is disposed with optical element from outside to inside from fluted external surface, camera, photoelectric signal transformation chip and analog-digital chip, described photographing module also comprises a micro motor for control both optical element.
2. a kind of integrated vehicle photographing 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 photographing 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 photographing module for enforcement vehicle according to claim 3 and video recording device thereof, it is characterized in that, the combination of described optical surface provides at least one adjustable focus, and the focal length of described adjustable focus depends on the mutual alignment of described optical surface.
5. a kind of integrated vehicle photographing module for enforcement vehicle according to claim 4 and video recording device thereof, is characterized in that, the mutual alignment of described optical surface is regulated by a micro motor.
6. a kind of integrated vehicle photographing module for enforcement vehicle according to claim 5 and video recording device thereof, it is characterized in that, described micro motor is connected with the central processing unit of described message processing module and controls by it, and described micro motor is stepless time adjustment motor.
7., according to a kind of integrated vehicle photographing module for enforcement vehicle and the video recording device thereof of claim arbitrary in claim 1-3, it is characterized in that, the optical element of described photographing module is made up of implosion guard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510853040.5A CN105516616A (en) | 2015-11-28 | 2015-11-28 | Integrated vehicle-mounted camera module applied to law enforcement vehicle and video recording system thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510853040.5A CN105516616A (en) | 2015-11-28 | 2015-11-28 | Integrated vehicle-mounted camera module applied to law enforcement vehicle and video recording system thereof |
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| CN105516616A true CN105516616A (en) | 2016-04-20 |
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| CN201510853040.5A Pending CN105516616A (en) | 2015-11-28 | 2015-11-28 | Integrated vehicle-mounted camera module applied to law enforcement vehicle and video recording system thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101421783A (en) * | 2006-04-11 | 2009-04-29 | Lg电子株式会社 | Recording and/or reproducing apparatus, method thereof and discriminating method of medium |
| CN201286153Y (en) * | 2008-10-31 | 2009-08-05 | 天津三星电子有限公司 | Vehicle mounted video monitoring system |
| US20140036077A1 (en) * | 2012-08-06 | 2014-02-06 | Steven David Nerayoff | Method for Controlling Vehicle Use of Parking Spaces by Use of Cameras |
| CN103945192A (en) * | 2014-05-01 | 2014-07-23 | 张臣 | System for recording law enforcement information |
| CN203882346U (en) * | 2014-03-31 | 2014-10-15 | 蔡国元 | Criminal footprint image acquisition analyzer |
| 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 |
-
2015
- 2015-11-28 CN CN201510853040.5A patent/CN105516616A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101421783A (en) * | 2006-04-11 | 2009-04-29 | Lg电子株式会社 | Recording and/or reproducing apparatus, method thereof and discriminating method of medium |
| CN201286153Y (en) * | 2008-10-31 | 2009-08-05 | 天津三星电子有限公司 | Vehicle mounted video monitoring system |
| US20140036077A1 (en) * | 2012-08-06 | 2014-02-06 | Steven David Nerayoff | Method for Controlling Vehicle Use of Parking Spaces by Use of Cameras |
| CN203882346U (en) * | 2014-03-31 | 2014-10-15 | 蔡国元 | Criminal footprint image acquisition analyzer |
| CN103945192A (en) * | 2014-05-01 | 2014-07-23 | 张臣 | System for recording law enforcement information |
| 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 |
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Application publication date: 20160420 |