CN105946720A - Front-loaded image system of automobile - Google Patents
Front-loaded image system of automobile Download PDFInfo
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- CN105946720A CN105946720A CN201610548205.2A CN201610548205A CN105946720A CN 105946720 A CN105946720 A CN 105946720A CN 201610548205 A CN201610548205 A CN 201610548205A CN 105946720 A CN105946720 A CN 105946720A
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
- B60R2300/10—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of camera system used
- B60R2300/101—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of camera system used using cameras with adjustable capturing direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
- B60R2300/10—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of camera system used
- B60R2300/102—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of camera system used using 360 degree surveillance camera system
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- Multimedia (AREA)
- Mechanical Engineering (AREA)
- Signal Processing (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
The invention discloses a front-loaded image system of an automobile, and belongs to the technical field of automotive parts. The invention provides the front-loaded image system of the automobile with low cost and easiness for installation. The front-loaded image system of the automobile can reduce a driver blind area in driving and expand a visual area, so that the driver can have a better understanding for the front visual field so as to realize position movement of the automobile in driving conveniently, and therefore the occurrence of traffic accidents caused by cart blocking is reduced. The front-loaded image system of the automobile comprises a forward looking camera, wherein the forward looking camera is arranged on a middle segment of a wheel fender behind a left outside of the automobile or is arranged on a rearview mirror at the left side, and the forward looking camera is connected with a power supply and a screen respectively.
Description
Technical field
The invention belongs to technical field of automobile parts, relate to a kind of driving assistant device, particularly relate to a kind of automobile preposition
Image system.
Background technology
In current society, automobile has become as one of necessary of our life, and the development of automobile brings convenience to us, no
Improve only the work efficiency of time, also pulled domestic demand, expedited the emergence of many new industries, drive the revolution of science and technology.Equally
, the development of automobile is also a much progress for the mankind, and brings the change of society.But, the development of things is two sides
Property, beneficial the most harmful.The fast development of automobile also makes that we are the fastest has consumed earth energy, destroys big compression ring
Border, it is often more important that the frequent generation of vehicle accident so that many families lose relatives.Wherein, owing to driving driver visual field time
The accident caused by barrier obstruction such as front carts emerges in an endless stream.
Many people are at home and abroad had to be found that problems the method for such issues that research and solve, including:
(1) multi-cam integrated system
Such as Ford's novel on-vehicle image technology, they are devoted to configure multiple photographic head, then carry out split screen display available, with
Reach 360 degree and cover vehicle body peripheral visual field, improve the safety of driving.But this method, one is to need the highest cost
The covering of the effective visual field can be carried out, and due to 360 degree of visuals field, and split screen display available, cause the visual field too big, easily cause driving on the contrary
Person diverts attention.TRW is also configured with front-facing camera to improve the visual field for trendy Cherokee, but is but that the reversing for automobile enters position,
Reversing automobile automatically turns on, increases safety during reversing.And the most also have similar technology, such as Nanjing University's machine
Tool Engineering Master once delivered the article about " research of automobile panoramic round-looking system ", and core content is also many in the installation of car limit
Individual photographic head, completes the visual angle of peripheral vehicle 360 degree and in car-mounted display screen display, the installed video of effect and Ford
Technology is similar to.
(2) intelligent camera head system
In recent years, Japan have developed a kind of automobile intelligent front-facing camera, and this front-facing camera can carry out automatically analyzing place
Reason identifies people and the barrier in front, and sends alarm in advance, so can reduce owing to driver self regards to a certain extent
Open country is broad not or receives the accident that obstruction is occurred, but it is not very good for using reaction, and this intelligent identifying system equally needs
Higher cost, and many users also react alarm song and too frequently affect driving on the contrary.Domestic Heng Run scientific & technical corporation also researches and develops
Go out a set of similar front-facing camera device, the barrier in the camera view of front can have been identified and automatically make alarm,
But also lack practicality and popularization.
(3) analogue system
Valencia university also investigated a set of EYES system recently, and all drivers can be allowed to put into intelligence hands with APP form
Machine and panel computer, driver these equipment frames at front windshield, front when just more fully can see driving on screen
Details, it is crucial that provide one " front truck visual angle ", increase the visual field of driver, the one of this system is big, and feature is:
Provide real-time road video on device screen, and receive Tong Bu with front truck shows, in order to realize car and workshop in driving procedure
Real time imaging transmits, and EYES system employs WIFI interconnection technique, it is not necessary to use 4G mobile communcations system.It can be so phase
Near two cars sets up the connection of point-to-point, it is not necessary to issue after image information is passed back high in the clouds, allows image transmitting more real-time.
But there is also some problems: first, rule of thumb, the two cars of connection need to install the APP of EYES simultaneously simultaneously, this
Actual application is accomplished by considering useful load problem；Secondly, front truck has randomness in the process of moving, if quickly to set up
Connecting it is necessary to consider whether to need password authentification, adjoint is exactly information security issue；Finally, it is time delay, high car will be met
Synchronously visual under the conditions of speed, it is also proposed certain requirement to wifi module.The transmission speed of that progress bar to be waited of digital camera end
Degree, it is clear that be underproof.It is not unique, but has its counterpart, and not long ago, Samsung has gone out the news of the most super truck, it is provided that be also similar
Function.This trailer bus headstock is equipped with wireless camera, and tailstock container is mounted with four pieces of screens, can be to the automobile followed
Display front road conditions, it is simple to rear car changes travel route.By contrast, this scheme eliminates connectivity problem, and car is regarded as one
The man-machine interaction scheme that individual entirety is given.But want to popularize, the problem that still cannot avoid useful load and transmission speed.And
China of today, it is desirable to universal is a thing the most difficult.The vehicle front-viewing system also having some research and development both at home and abroad is to pass through sound
Ripple or infrared induction determine the barrier in front, all directly perceived apparently without the visual field given by photographic head, clearly.
Making a general survey of the present Research of current stage, the analysis to automobile preposition image is the most comprehensive, and advantage is a lot, asks existing
Topic has had good solution, but still has many shortcomings to have much room for improvement:
(1) first cost is high, and only high cost can be only achieved purpose in advance, but some businessman is for reducing cost, manufacture be
System can not solve existing problem, so the practicality of system is affected.Price is the Main Means of competition, and cost height makes
Risk is bigger, and because cost height generalization reduces, it is impossible to it is widely used.
(2) complexity is high, and external many equipment are it is desirable that subtle systems, it has not been convenient to install, be easily damaged equally, and
And system response is slower and it needs to this type of system installed by many cars, universality is poor.
(3) convenience is low, and many foreign system display screens are relatively big, disperseed the attention of driver when driver watches, and send out
Raw dangerous situation increases；And some system reminds human pilot by sound prompting mode, easily bother the note of human pilot
Meaning power.
(4) many systems are all based on the research of backing system, focus on task at hand for front-end system and specific aim is relatively low.
Present stage, the mass ratio very different, super expressway of the security performance at Chinese various vehicles is poor, the safety of driver
Realize worse under the conditions of, F-Zero 120 kilometers, also cause China Expressway major accident to take place frequently.Therefore, in technology
In the environment of beyond aspect, government should be devoted to improve viability and the safety consciousness of driver of regulation.
According to science test: speed at 72 kilometers/hour, be normally 1.2 visual deterioration to 0.7；Speed 100 kilometers/little
Time, the visual field is only 45 degree, here it is the reason that " reading off the inscription on a stone tablet as one's horse gallops by " non-ordinary person can be.Driver's normal response time (is sent out
Existing object-judge-take action) typically about 2.5 seconds, therefore, for the vehicle with 120 kilometers of speed per hours travelings
Speech, reaction distance is: 120*1000*2.5/60*60=83 (rice), if adding the factor such as car braking, coast,
Effecting reaction distance is actually subjected to more than hundred meters.Therefore, do not see time remote, near time have little time, be to cause " ten accident nine times fast "
Basic reason.This also explains the U.S. and the F-Zero of highway is limited in the reason of 88 kilometers.Because in the world
All of vehicle does not all have safety guarantee when speed per hour is higher than more than 90 kilometers.
Driver serves conclusive effect when driving to the judgement of front road conditions, and the judgment accuracy that driver is to road conditions
Depend on that its duty and driving are intended to.By to occurring a lot of vehicle accident cases throughout the country to carry out statistical analysis,
Find that most of accident occurs relatively big at front vehicles volume, when having a strong impact on driver's sight line；As at city driving process
In, when front vehicles is relatively large bus, the sight line of rear compact car driver is blocked by the bus tailstock completely, is in
The state that road conditions are known nothing；And at some fastlinks, such as national highway, provincial highway, running on expressway run into front
When having some bulk transport fleets, the sight line of rear driver is blocked the most completely, when fleet head and vehicle are bigger, and rear department
Machine cannot see that motorcade length and front road conditions, if appropriate for overtaking other vehicles, thus are difficult to make correct judgement so that traffic thing
Therefore multiple, huge hidden danger is buried in the personal safety for driver.
Analysis based on above safety, except making an issue of in laws and regulations and driver's safety consciousness, more should be at technology layer
Being solved on face, including the body material that research and development are more solid, light, exploitation more conforms to the preposition shadow of human factor engineering
As system etc..Automobile preposition image system designed by the present invention is exactly the direction that human factor engineering applies at automotive field.
Summary of the invention
The problem existed for prior art, the present invention provides a kind of low cost, the automobile preposition image system easily installed, and this is
System can reduce the driver blind area when driving, and expands vision area, has bigger understanding to field of front vision, thus facilitate running car
The movement of middle position, reduces because cart stops the generation of the vehicle accident caused.
To achieve these goals, the present invention adopts the following technical scheme that a kind of automobile preposition image system, images including forward sight
Head, described forward sight photographic head is arranged on the beater or beat-up stage casing at automobile left-external side rear or is arranged on the rearview mirror of left side；Described forward sight
Photographic head is connected with power supply and screen respectively.
360 ° of universal adjustable type night vision high-definition cameras that described forward sight photographic head uses model to be GD-HD360.
Described power supply is vehicle power, and screen is Vehicular screen.
The preposition image of described Vehicular screen and the change-over circuit of reverse image, including the first relay, the second relay, first
Diode, the second diode, the 3rd diode, the 4th diode, the first audion, the second audion, the first resistance,
Two resistance, switch and electric capacity；The positive pole of power supply respectively with one end of the second relay coil, the negative pole of the second diode, first
One end of one end of relay coil, the intermediate contact of the first relay, the negative pole of the first diode and switch is connected, and second
After the other end of relay coil and the positive pole of the second diode are connected, it is connected with the colelctor electrode of the second audion, the first relay
After the other end of device coil and the positive pole of the first diode are connected, it is connected with the colelctor electrode of the first audion；First relay
Normally opened contact is connected with the negative pole of power supply, the base stage of the second audion through the second resistance respectively with switch the other end, the three or two
The negative pole of pole pipe and the positive pole of the 4th diode are connected；The base stage of the first audion through the first resistance respectively with the 4th diode
Negative pole is connected with the positive pole of electric capacity, the emitter stage of the negative pole of electric capacity, the emitter stage of the second audion and the first audion respectively with
Ground is connected；The positive pole of the 3rd diode is connected with gear electric current, the intermediate contact of the second relay and the input of Vehicular screen
End is connected, and the normally-closed contact of the second relay is connected with the outfan of forward sight photographic head, the normally opened contact of the second relay with
The outfan of post-positioned pick-up head is connected.
Beneficial effects of the present invention:
The automobile preposition image system of the present invention increases the visual field of driver by the method installing forward sight photographic head additional, and auxiliary is driven
Member drives thus promotes safe coefficient.The present invention can farthest reduce the driver blind area when driving, and expands vision area, makes
Obtain driver and front road conditions are had farthest understanding, thus make correct driving and judge, facilitate position in running car
Mobile, reduce because cart stops the generation of the vehicle accident caused, it is ensured that the personal safety of driver, more improve driving
Efficiency.
It addition, the present invention can promote the development of preposition image so that the development of automobile more hommization and innovationization so that vapour
The development of car becomes quick so that driving conditions becomes light, reduces the fatigue strength of driver, also can reduce because of driver
The generation of the vehicle accident that fatigue causes, also meets the design of Human Engineering.
Accompanying drawing explanation
Fig. 1 is the structural representation of the automobile preposition image system of the present invention；
Fig. 2 is the preposition image circuit theory diagrams with the change-over circuit of reverse image of the Vehicular screen of the present invention；
The schematic diagram of the horizontal field of view that Fig. 3 behaves；
Fig. 4 is vision area and the blind area schematic diagram of driver；
Fig. 5 is to use prior art vision area scope schematic diagram of driver in fastlink；
Fig. 6 is to use prior art vision area scope schematic diagram of driver in section, urban district；
Fig. 7 is to use present invention vision area scope schematic diagram of driver in fastlink；
Fig. 8 is to use present invention vision area scope schematic diagram of driver in section, urban district；
In figure: 1-vehicle power, 2-storage battery, 3-forward sight photographic head, 4-Vehicular screen.
Detailed description of the invention
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As it is shown on figure 3,62 °, the left and right that the eyes vision area of the mankind is dead ahead standard sight line, in this vision area, people are permissible
Carry out colour recognition, Letter identification and Text region.When people are only identified with certain eyes, in the corresponding direction
Vision area can expand, certainly, for the people that get used to stereopsis vision, with simple eye distinguish things time need an adaptation
Process, the approximate time of this process is 100ms；Meanwhile, the result of study of famous scientist's Huo Waduo Germania shows:
The identification capacity of stereopsis vision is about 20 times of uniocular vision, and therefore, the present invention selects the most general when calculating and discuss
Time eyes vision area calculate, the most just have more verity and practical significance.
As shown in Figure 4, when there is oversize vehicle in front, there is bigger a piece of blind area the horizontal viewing zone of rear dilly driver, and
And this blind area covers all of crucial road conditions, having had a strong impact on the normal driving of rear driver, the most this situation must give
Improve.
Through checking in: the width of the heavy truck that China uses mostly is 2.13m～2.63m, in order to ensure absolute safety, I
Take maximum 2.63m for calculating size, other width can include less than the heavy vehicle of 2.63m or city bus
In this scope of data.As it is shown in figure 5, in China, the position of vehicle driver is on the left of front row, therefore, calculate time pair
Related data is modified, and i.e. takes a=1m.Clear stipulaties in " People's Republic of China's law on road traffic safety ", works as rear
When motor vehicles is wanted to overtake other vehicles, carry out from left side without exception, and before blowing a whistle and to use far and near light signal alternately to inform in advance
Side's vehicle.To keep certain spacing when vehicle travels, especially travel in fastlink.China's law on road traffic safety
Article 81, clear stipulaties: motor vehicles travels on a highway, meets the low visibilities such as mist, rain, snow, sand and dust, hail
During meteorological condition, it should in accordance with following regulation:
(1) when visibility is less than 200 meters, opening fog lamp, dipped headlights, clearance lamps and anteroposterior position lamp, speed must not exceed the least
Time 60 kilometers, keep the distance of more than 100 meters with same track front truck；
(2), when visibility is less than 100 meters, fog lamp, dipped headlights, clearance lamps, anteroposterior position lamp and hazard warning lamp are opened,
Speed must not exceed 40 kilometers per hour, with the distance that same track front truck keeps more than 50 meters；
(3), when visibility is less than 50 meters, fog lamp, dipped headlights, clearance lamps, anteroposterior position lamp and hazard warning lamp, car are opened
Speed must not exceed 20 kilometers per hour, and sails out of highway as early as possible from nearest outlet.
And in the case of road conditions are preferable, vehicle spacing in running at high speed also cannot be less than 50 meters, therefore, takes minima b=50
M calculates.Analyze based on above, it is possible to use Pythagorean theorem and related data obtain the scope of driver's vision area, thus with change
Data after entering carry out contrasting preferentially, as it is shown in figure 5,
-1.2 °, β=62 °=60.8 °
When vehicle travels in urban district, be also frequently run onto this kind of situation, but due in urban district vehicle more, road conditions are complicated, because of
This car speed all ratios are relatively low, and corresponding safe distance between vehicles is the shortest, especially waiting traffic light when, and traffic law
On do not lay down hard and fast rule, the distance of usual fore-aft vehicle be less than 1m.Therefore, when calculating, minima b=1.5m is taken.Based on
Upper analysis, obtains the scope of driver's vision area, thus contrasts with the data after improving again with Pythagorean theorem and related data
Preferentially, as shown in Figure 6,
-33.7 °, β=62 °=28.3 °
Fig. 5 and Fig. 6 depicts the vision area scope fastlink and section, urban district driver, in figure 5 it can be seen that the resistance of front vehicles
Gear makes front road conditions be completely in the blind area of driver, and this situation is particularly acute in section, urban district.Therefore, this is devised
Bright automobile preposition image system increases β angle as far as possible so that the blind area of driver is the least, makes the front road conditions can be by
See.
As it is shown in figure 1, a kind of automobile preposition image system, including forward sight photographic head 3, described forward sight photographic head 3 is arranged on vapour
The beater or beat-up stage casing at car left-external side rear or be arranged on the rearview mirror of left side；Described forward sight photographic head 3 respectively with power supply and screen phase
Connect.In the present embodiment, described power supply uses vehicle power 1, and described screen uses Vehicular screen 4.Described forward sight photographic head 3
The 360 ° of universal adjustable type night vision high-definition cameras using model to be GD-HD360.
The Main Function of preposition image is the blind area reducing driver when driving, so the major function of the present invention is to front driver
When Fang Lukuang does not knows, it is possible to use the image that the forward sight photographic head 3 of the present invention gathers expands vision area so that driver is to front
Road conditions are had at fingertips, thus make correct judgement.During use, when driver's sight line is blocked, Vehicular screen 4 can be opened,
Forward sight photographic head 3 works simultaneously, the incoming Vehicular screen of video signal 4 that will collect, and by Vehicular screen 4 real-time play
To driver.
When the screen of the present invention uses Vehicular screen 4, the automobile preposition image system of the present invention operationally have one important
Function: carry out the switching between preposition image and reverse image.Certainly, from the angle analysis of human factor engineering, in practical operation
During, when driver hangs backing car gear, Vehicular screen 4 should be shown that the reverse image of automobile；When driver hangs drive shift
During position, Vehicular screen 4 then wants the preposition image of display automobile, to ensure that driver can understand front road conditions to greatest extent.This
This function of invention is to be realized by the change-over circuit of the preposition image of Vehicular screen with reverse image.
The preposition image of described Vehicular screen and the change-over circuit of reverse image, as in figure 2 it is shown, include the first relay K 1, the
Two relay K the 2, first diode VD1, the second diode VD2, the 3rd diode VD3, the 4th diode VD4, the one or three
Pole pipe VT1, the second audion VT2, the first resistance R1, the second resistance R2, switch S and electric capacity C；The positive pole of power supply is respectively
With one end of the second relay K 2 coil, the negative pole of the second diode VD2, one end of the first relay K 1 coil, first continue
One end of the intermediate contact of electrical equipment K1, the negative pole of the first diode VD1 and switch S is connected, the second relay K 2 coil
After the positive pole of the other end and the second diode VD2 is connected, it is connected with the colelctor electrode of the second audion VT2, the first relay K 1
After the other end of coil and the positive pole of the first diode VD1 are connected, it is connected with the colelctor electrode of the first audion VT1；First continues
The normally opened contact of electrical equipment K1 is connected with the negative pole of power supply, the base stage of the second audion VT2 through the second resistance R2 respectively with switch
The positive pole of the other end of S, the negative pole of the 3rd diode VD3 and the 4th diode VD4 is connected；The base of the first audion VT1
Pole the first resistance R1 is connected with the negative pole of the 4th diode VD4 and the positive pole of electric capacity C respectively, the negative pole of electric capacity C, second
The emitter stage of audion VT2 and the emitter stage of the first audion VT1 are connected to the ground respectively and connect；The positive pole of the 3rd diode VD3 with
Gear electric current is connected, and the intermediate contact of the second relay K 2 is connected with the input of Vehicular screen 4, the second relay K 2
Normally-closed contact be connected with the outfan of forward sight photographic head 3, the normally opened contact of the second relay K 2 and the output of post-positioned pick-up head
End is connected.
This circuit should be built on the master control circuit board of automobile, communicates with the overall signal of automobile.When automobile is moving forward
During switch S, the normally opened contact of the normally opened contact of the first relay K 1 and the second relay K 2 is in off-state,
Now, what video-out port exported is the video signal of automobile preposition image system；When the gear of vehicle is hung as falling by driver
During shelves, triggering switch S Guan Bi, circuit turn-on, the coil of the first relay K 1 and the second relay K 2 obtains electric, the first relay
The normally opened contact of device K1 and the normally opened contact adhesive of the second relay K 2 so that video-out port output reverse image system
Video signal；When driver hangs forward, switch S disconnects, and video-out port output is changed into automobile preposition image system
The video signal of system.
When forward sight photographic head 3 is arranged on the beater or beat-up stage casing at automobile left-external side rear, in fastlink, driver passes through forward sight
Front road conditions can be had by the image that photographic head 3 gathers to be understood largely；Beater or beat-up stage casing due to automobile left-external side rear
Position different from the steering position angle of driver, vision area scope has and expands largely, embodies the automobile preposition of the present invention
The effect of image system, cost performance is the highest, as it is shown in fig. 7,
-0 °, β=62 °=62 °
On market, the visual field of main flow volume production photographic head is 170 °, and the unilateral visual field of people is only 62 °, but the present invention's has
The effect visual field is 90 °, if wanting to use the photographic head in 90 ° of the visual field because of cost-effective, because not having volume production, can increase on the contrary
This.In the present embodiment, in order to compare with human eye vision, the visual field taking photographic head temporarily is identical with the unilateral visual field of human eye, is
62 °, if the visual field of 62 ° can reach the effect improved, then 90 ° of visuals field are the most safe and reliable.After improvement, driver
When driving in fastlink, vision area scope is expanded to 62 ° by 60.8 ° so that can be largely in the range of driver's vision area
See front road conditions clearly.When driver is at urban district sections of road, as shown in Figure 8, vision area scope is expanded to 62 ° by 28.3 °, greatly
Amplitude adds vision area scope.
-0 °, β=62 °=62 °
Owing to forward sight photographic head 3 is arranged on the beater or beat-up stage casing at automobile left-external side rear by the present invention, forward sight photographic head 3 volume is relatively
Little, power taking at reversing automobile car light, therefore be difficult to be seen, do not affect the overall appearance of vehicle after installation, less affect vapour
The sweeping lines that car is overall, do not have the impact in terms of any mechanical property to automobile.But according to Human Engineering Principle, this takes the photograph
As the position of head can preferably solve the problem that technical elements is implemented in power taking etc..Due to convenient in power taking herein, punching simple and
The simple easy-maintaining of circuit, it is taken as that forward sight photographic head 3 is installed feasible in the beater or beat-up stage casing at automobile left-external side rear.Due to front
Regard the maximum gauge of photographic head own as 21mm, very light in weight, therefore be installed on automobile rear stability can and theftproof performance fine.
Forward sight photographic head itself will not be shaken, and the image spread out of is stable, clearly.It should be noted that: electronic component waterproof
The most important with resistance to frost, owing to the operating position of forward sight photographic head is outside car, direct and extraneous contact, forward sight photographic head
It is specifically contemplated that these parameters in the fabrication process, to ensure that driver user can the most normally use the automobile preposition of the present invention
Image system.
The forward sight photographic head 3 of the present invention is installed on the rearview mirror of left side, and this scheme can apply to all vehicles, although automobile is originally
The design of body contour is had nothing in common with each other, but the particular location of rearview mirror is almost identical, is provided to solve driver when driving
Visual field problem.
The type selecting of components and parts:
Firstly the need of according to using environmental requirement to determine supply voltage, then according to magnitude of voltage, calculate and try to achieve components and parts needed for other
Design parameter, determine the model of components and parts.
1) power supply
Owing to the use environment of the present invention is in vehicle, the power supply in car is provided by 12V accumulator, therefore the power supply of the present invention can
Directly to be provided by vehicle power.So benefit of design: from the point of view of system itself, use dry cell power supply can be given up, letter
Change the design of power pack, made system be taken up space minimizing, decrease manufacturing cost simultaneously；From the perspective of user, can
Use to connect with the digital product such as electronic navigation, mobile phone, easy to use, and low cost；From the point of view of environmental conservation, make
With vehicle power than battery more low-carbon environment-friendly.
Owing to the forward sight photographic head 3 of the present invention is arranged on the beater or beat-up stage casing at automobile left-external side rear, therefore can be directly from automobile
Power taking at the car light of left rear side.
2) photographic head
Photographic head is core component, owing to, in the environment of reality, photographic head is the only one parts in the vehicle external world,
Therefore, to take into full account the performance of the aspects such as waterproof, low-temperature resistance, high temperature resistant, thunder-lightning when photographic head type selecting, meanwhile,
Also reasonable fixing camera element is wanted, to guarantee its stability and life-span during installation.Certainly, the size of camera element
Also to be considered into, if the volume of element is excessive, then can affect the attractive in appearance of car load, have also been changed the vehicle of entirety, increase
Car resistance, thus improve oil consumption, reduce service life.
During element is chosen, cost is an important Consideration, meanwhile, it is contemplated that the stability of system, peace
Full property and operability etc., after consideration comprehensively, comprehensive various factors, finally choose 360 ° that model is GD-HD360 universal
Adjustable type night vision high-definition camera.
GD-HD360 is 360 ° of universal adjustable type night vision high-definition cameras, and its maximum gauge only has 21mm, has 170 ° wide
Angular field of view and night vision function, the effect of its image-forming component CCD is also far superior to traditional cmos sensor, and has waterproof lightning protection
Etc. function.Design parameter is shown in Table 1.
Table 1 GD-HD360 photographic head parameter
| Sensitive chip | CCD |
| Resolution | 728*582(NTSC) |
| Visual angle | 170° |
| Minimal illumination | 0.01Lux |
| Video frequency output | 1.1Vp-p 75Ω |
| Electronic shutter | 1/50-1/100000<second> |
| Horizontal definition | 520 TVLines |
| Power consumption | DC12V ± 10% 250MA ± 10% |
| Gamma value | 0.45 |
| Operating temperature | -40 DEG C～60 DEG C of RH95% Max |
| Classification of waterproof | IP68 |
3) screen
It is equipped with screen inside the major part vehicle of middle and high end and the high distribution type of some low end vehicle, this screen and automotive interior
Control circuit mainboard is connected so that driver can be fed back after making some instructions from this screen.Shape in non-traveling
Under state, it is also possible to have some amusement functions.
And for some mechanic factory workers, lorry is selected in delivery often, in the lorry market of China, seldom there is configuration
The vehicle of Vehicular screen, therefore, if when the preposition image of automobile to be accessed or reverse image, driver can configure one voluntarily
Individual screen, certainly, in order to improve cost performance, can select some portable navigation devices or electronic dog device, and these devices exist
Also being almost indispensability during driving, meanwhile, this kind of device is often also equipped with a module and is used to play external video signal
, as long as the AV-IN port of signal output part and device is connected.The AV-IN port of navigator is normally at its side,
Pore size is 2.5mm.
The concrete installation process of the present embodiment, comprises the steps:
Step one: open trunk, trunk interior trim of dismantling, finds the power line of left side back-up lamp, broken line to connect, color pair
Should；
Step 2: be connected on electric drill by drill bit, then the beater or beat-up stage casing at automobile left-external side rear carries out perforate, after terminating
With blade or sand papering burr；
Step 3: the line of forward sight photographic head 3 is penetrated in hole, and at interior cabling, after circuit being fixed with instrument,
Power line and video output cable edge from automotive interior of forward sight photographic head 3 are passed successively；
Step 4: again arrange internal wiring, to ensure that forward sight photographic head 3 can normally work, then adjusts forward sight photographic head 3
Angle, then circuit is internal fixing from car, and pass video output cable；
Step 5: video output cable is introduced the junction below operator seat and is connected with Vehicular screen.
The present invention obtains the bigger visual field by the visual angle that forward sight photographic head 3 is broader, reduces the danger of driving, does not has
Potential safety hazard, low cost and be no matter enterprise manufacturer or automobile services business even individual can install, to current urban district row
Car or high speed traveling is all very helpful.
Claims (4)
1. an automobile preposition image system, it is characterised in that include that forward sight photographic head, described forward sight photographic head are arranged on automobile left
The beater or beat-up stage casing at rear, outside or be arranged on the rearview mirror of left side；Described forward sight photographic head is connected with power supply and screen respectively.
Automobile preposition image system the most according to claim 1, it is characterised in that described forward sight photographic head employing model is
360 ° of universal adjustable type night vision high-definition cameras of GD-HD360.
Automobile preposition image system the most according to claim 1, it is characterised in that described power supply is vehicle power, screen is
Vehicular screen.
Automobile preposition image system the most according to claim 3, it is characterised in that the preposition image of described Vehicular screen with fall
The change-over circuit of car image, including the first relay, the second relay, the first diode, the second diode, the 3rd diode,
4th diode, the first audion, the second audion, the first resistance, the second resistance, switch and electric capacity；The positive pole of power supply divides
Not with in one end of the second relay coil, the negative pole of the second diode, one end of the first relay coil, the first relay
Between contact, one end of the negative pole of the first diode and switch be connected, the other end of the second relay coil and the second diode
After positive pole is connected, it is connected with the colelctor electrode of the second audion, the other end of the first relay coil and the positive pole of the first diode
After Xiang Lianing, it is connected with the colelctor electrode of the first audion；The normally opened contact of the first relay is connected with the negative pole of power supply, and second
The base stage of audion through the second resistance respectively the positive pole of the other end, the negative pole of the 3rd diode and the 4th diode with switch be connected
Connect；The base stage of the first audion is connected with the negative pole of the 4th diode and the positive pole of electric capacity respectively through the first resistance, bearing of electric capacity
The emitter stage of pole, the emitter stage of the second audion and the first audion is connected to the ground respectively and connects；The positive pole of the 3rd diode and gear
Electric current is connected, and the intermediate contact of the second relay is connected with the input of Vehicular screen, the normally-closed contact of the second relay with
The outfan of forward sight photographic head is connected, and the normally opened contact of the second relay is connected with the outfan of post-positioned pick-up head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610548205.2A CN105946720A (en) | 2016-07-12 | 2016-07-12 | Front-loaded image system of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610548205.2A CN105946720A (en) | 2016-07-12 | 2016-07-12 | Front-loaded image system of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105946720A true CN105946720A (en) | 2016-09-21 |
Family
ID=56899928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610548205.2A Pending CN105946720A (en) | 2016-07-12 | 2016-07-12 | Front-loaded image system of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105946720A (en) |
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