CN209218250U - A kind of image system - Google Patents
A kind of image system Download PDFInfo
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- CN209218250U CN209218250U CN201920178842.4U CN201920178842U CN209218250U CN 209218250 U CN209218250 U CN 209218250U CN 201920178842 U CN201920178842 U CN 201920178842U CN 209218250 U CN209218250 U CN 209218250U
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Abstract
The utility model embodiment discloses a kind of image system, it is related to safety assistant driving technical field, applied on vehicle, the image system includes, around the image process unit for being set to the multiple cameras for being distributed setting on 360 ° of directions of vehicle and being electrically connected with the multiple camera, the camera is analogue camera, and the video signal format of the analogue camera shooting is TVI format.Since the price of the analogue camera of equal resolution will be lower than digital camera, the video or image of vehicle periphery are acquired as the image collecting device of image system by using analogue camera, the cost of image system can be reduced, so as to relative reduction complete machine cost.The utility model is suitable for understanding and observation peripheral situation of vehicle, is used for safe driving with auxiliary.
Description
Technical field
The utility model relates to safety assistant driving technical field more particularly to a kind of image systems.
Background technique
As image vision technology is applied to automotive safety auxiliary driving technology field more and more, opened on many vehicles
Primordium is equipped with image system in vehicular platform.Currently, the image system installed on vehicle, is arranged generally by vehicle
Digital camera understands current vehicle peripheral situation for driver with the image for acquiring vehicle periphery.But this kind uses
The image system higher cost of digital camera, has increase accordingly the cost of complete machine.
Utility model content
In view of this, the utility model embodiment provides a kind of image system, the cost of image system can be reduced, thus
It can relative reduction complete machine cost.
In order to achieve the above objectives, the utility model adopts the following technical solution:
A kind of image system is applied on vehicle, and the image system includes dividing around being set on 360 ° of directions of vehicle
Multiple cameras of cloth setting and the image process unit being electrically connected with the multiple camera, the camera are analogue camera, institute
The video signal format for stating analogue camera shooting is TVI format；
The image process unit includes: analog-to-digital conversion module, data processing module and format conversion module, the camera
It is electrically connected at the data processing module by analog-to-digital conversion module, the data processing module is electrically connected at the format
Conversion module.
Preferably, the resolution ratio of the analogue camera is at least 720P, frame per second 30fps.
Preferably, the image process unit further includes the view by the data conversion of parallel transmission at the data of serial transmission
Frequency stringization module, the video string module input are electrically connected at the output end of the format conversion module.
Preferably, the video string module output end is electrically connected at video interface module, the video interface module
External coaxial wire.
Preferably, the image process unit further includes control module, the control module respectively with data processing module
And control area network-bus connection.
Preferably, the multiple camera include be set to the first camera on vehicle head, the second camera of vehicle tail and
The third camera of vehicle two sides.
A kind of image system of the utility model embodiment, the image system include surrounding and being set to 360 ° of directions of vehicle
Multiple cameras of upper distribution setting and the image process unit being electrically connected with the multiple camera, the camera are simulation phase
The video signal format of machine, the analogue camera shooting is TVI format；The image process unit include: analog-to-digital conversion module,
Data processing module and format conversion module, the camera are electrically connected at the data processing mould by analog-to-digital conversion module
Block, the data processing module are electrically connected at the format conversion module.Due to the price of the analogue camera of equal resolution
To be lower than digital camera, acquire the video of vehicle periphery as the image collecting device of image system by using analogue camera
Or image, the cost of image system can be reduced, the vehicle complete machine cost of the image system is applied so as to relative reduction.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is one example structure block diagram of image system in the utility model；
Fig. 2 the utility model has one example structure schematic diagram of vehicle of image system.
Specific embodiment
The utility model embodiment is described in detail with reference to the accompanying drawing.
It will be appreciated that the described embodiments are only a part of the embodiments of the utility model, rather than whole implementation
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
The all other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, image system provided in an embodiment of the present invention can be based on TI J6Entry platform (a kind of vehicular platform)
Applied on vehicle, as safety assistant driving equipment, for reducing blind area, to improve the safety driven.Shown in Fig. 1
Application scenarios: image system by car entertainment host and gateway CAN Gate realization the situation of vehicle periphery is presented in time
To driver, to improve drive safety, the picture that wherein car entertainment host is shot to display image system, gateway
CAN Gate is to input/output control signal.
Referring to shown in Fig. 1 and 2, the embodiment of the present invention provides a kind of image system, is applied on vehicle, it is possible to reduce drives
Middle blind area improves drive safety.The image system includes the camera 1 to 3 being set on vehicle, and the camera is mould
Quasi- camera, the camera are electrically connected at image process unit 4.
It is understood that existing vehicle-mounted reverse image system is usually that camera is arranged in the tailstock, to acquire the tailstock
Video image, still, in front of vehicle periphery and headstock existing for blind area be still the insecurity factor for influencing to drive, such as
VEHICLES MUST PARK WITHIN THE MARKED BAY the urban drive of narrow congestion and parking lot is easy to the blind area as existing for headstock and vehicle body side and causes to touch
Hit and scratch event.In the present embodiment, in order to solve this problem, as an alternative embodiment, the camera has camera function,
Including video camera, the camera can be to be multiple, and 360 ° of multiple cameras are arranged around vehicle bodies, constitute 360 ° of panoramic looking-around shadows
As system, to realize the video capture comprehensive to vehicle periphery, it is possible to reduce or blind area is avoided, to improve driving safety
Property.
Specifically, the camera includes the second camera 2 of the first camera 1 for being set to vehicle head and vehicle tail.More
Specifically, the camera further includes the third camera 3 for being set to vehicle two sides.The first camera 1, second camera 2 and third
Camera 3 is fish eye lens camera.The camera can be connect with image process unit using common coaxial cable, can also be adopted
It is connected with unmasked differential twisted pair to transmit data-signal.
Further it will be understood that existing image system, the camera of the image collecting device as image system, packet
Camera is included, is usually used digital camera, and the camera of equal resolution, digital camera is relatively high, this is also increased
The cost of complete machine.
Image system described in the present embodiment supports low-power consumption mode, quiescent current that can accomplish≤0.25mA@DC12V.
It should be noted that structural schematic diagram shown in Fig. 2 is only an illustrative figure, should not be understood as to this reality
The exclusiveness for applying a specific implementation or other specific embodiments limits.
A kind of image system of the utility model embodiment, the image system include surrounding and being set to 360 ° of body vehicle
The image process unit for being distributed multiple cameras of setting on direction and being electrically connected with the multiple camera, the camera are simulation
The video signal format of camera, the analogue camera shooting is TVI format；The image process unit includes: analog-to-digital conversion mould
Block, data processing module and format conversion module, the camera are electrically connected at the data processing by analog-to-digital conversion module
Module, the data processing module are electrically connected at the format conversion module.Due to the valence of the analogue camera of equal resolution
Lattice will be lower than digital camera, acquire the view of vehicle periphery as the image collecting device of image system by using analogue camera
Frequency or image, can reduce the cost of image system, and the vehicle complete machine cost of the image system is applied so as to relative reduction.
In addition, deeper technical reason is: inventor has found that digital camera is adopted in the implementation of the present invention
The multi-path video data signal of collection needs if to realize the long distance transmission of multipath digital video data-signal in video counts
According to signal output end to stringization chip is arranged between image processing system, serial signal is converted by parallel data, to realize length
Distance Transmission.Moreover, serial signalling rate after the conversion is generally in Gbps (bandwidth) rank, to transmission line beam request compared with
Height, it is expensive, and the scheme of digital camera also needs to introduce a pair of of stringization chip, this has also increase accordingly cost.Inventor
It is found through overtesting, the image definition of the analogue camera shooting of same resolution ratio is almost the same with digital camera, based on this hair
It is existing, creatively use analogue camera as the image collecting device of image system, using analog signal self transmission characteristic (to biography
Defeated medium, such as cable quality requirement are lower, are easy to implement distant signal transmission), solve multi-path video data Chief Signal Boatswain
Long distance transmission can be realized without adding additional stringization equipment after vision signal exports in the problem of Distance Transmission,
On the basis of realizing video data signal long distance transmission, relative reduction cost.Moreover, because analog signal can be in low specification
In transmission line beam ring border, the long distance transmission of signal is realized, the quality and specification requirement to harness are lower with respect to digital signal, this
But also scheme provided by the utility model further reduces costs.
In addition, analog signal is not high to harness quality requirement, the output of signal is can be realized in general coaxial cable, and such as
The image of fruit acquisition is directly exported with digital signal, higher to harness quality requirement, the present embodiment by using analogue camera,
Analog signal is exported, reconvert not only guarantees the clarity of image at digital signal in image process unit after allowing, but also reduces
Requirement to harness quality, so as to reduce cost.
In the present embodiment, the vision signal of the analogue camera output is TVI format.It is described as an alternative embodiment
The resolution ratio of analogue camera is at least 720P, frame per second 30fps.When the video of analogue camera shooting reaches 720P/30fps or more
When, the video signal format is HD-TVI (High Definition Trans port Video Interface), can be with
Support that video resolution is 1080P/ and frame per second is 30fps.In this way, the clarity of shooting image can be increased, high definition shadow is realized
As shooting.
Referring to shown in Fig. 1, as an alternative embodiment, the image process unit includes: analog-to-digital conversion module, at data
Module and format conversion module are managed, the camera is electrically connected at the data processing module by analog-to-digital conversion module, described
Data processing module is electrically connected at the format conversion module.
Wherein, in one example structure block diagram of image system shown in Fig. 1, analog-to-digital conversion module is used for four Lu Mo
Quasi- video data signal is converted into digital signal, and video data signal is carried out to the video format for being encoded to BT656, Ke Yishi
The 4 tunnel vision signals now inputted coded treatment, the data processing module can receive the video letter of the video format of BT656 simultaneously
Number, four tunnel vision signals are corrected and are spliced, form 360 ° of panoramic pictures, and be transferred to format conversion module.
Wherein, data processing module can be system level chip SOC, also referred to as system on chip, be entire image system
One core cell forms 360 ° of panoramic picture outputs for being corrected and splicing to multi-channel video signal.In addition, it is also
It can receive control signal, to realize the switching of shooting picture.
The format conversion module, for by data processing module, such as system level chip SOC output vision signal by
The format of BT656 to BT601 is converted, and final purpose is the reception format for matching car entertainment host.
In the present embodiment, as an alternative embodiment, the image process unit further includes turning the data of parallel transmission
Change the video string module of the data of serial transmission into, the video string module input is electrically connected at the format conversion
The output end of module.
Wherein, video string module, for being encoded and string the vision signal from format conversion module, finally
LVDS (Low-Voltage Differential Signaling) high speed signal is exported, video transmission efficiency can be improved in this way,
And video interface is sent it to, it will be exported by the video interface to car entertainment host, and finally present in the car
On display screen, for driver's observation.
In the present embodiment, as an alternative embodiment, the video string module output end is electrically connected at video interface
Module, the external coaxial wire of video interface module.It is reduced costs in this way compared to the scheme of twisted pair.
In the present embodiment, as an alternative embodiment, the image process unit further includes control module, the control mould
Block is connect with data processing module and control area network-bus respectively.
Specifically, the control module can be total by control area network-bus interface chip connection control area network
Line, wherein control module can be single-chip microprocessor MCU, on the one hand be used for, to data processing module, for example, system level chip SOC into
Row up/down electric control, to realize the low-power consumption of image system；On the other hand, control area network-bus is come from for receiving
The signal comprising reversing, steering, speed steering wheel angle etc., and is sent to system by the signal of interface chip (CAN PHY)
Grade chip SOC, to realize the switching of image system picture or visual angle.
Wherein, the control area network-bus interface chip is connect with gateway CAN Gate, can be used for receiving from vehicle
Own signal, for example, turning left, turning right.Steering wheel rotational angle etc., then transmits the signal to control module.Control
Zone network bus interface chip also supports arousal function, when gateway CAN Gate does not have signal sending, control area network
Bus Interface Chip enters sleep pattern by control module control, and controls image system and give control module itself lower electricity, at this time
Image system is in low-power consumption mode；When gateway CAN Gate issues signal, control area network-bus interface chip can quilt
It wakes up, and enters normal operating conditions, while controlling image system and powering on to control module.
In order to clearly illustrate the utility model embodiment, now in conjunction with image system shown in FIG. 1, it is applied on vehicle
To realize that the overall work process of safety assistant driving is described in detail as follows:
When vehicle in a dormant state when, i.e., when gateway does not have signal sending, image system enters low-power consumption mode；Work as vehicle
Igniting after, gateway CAN Gate issue signal, network-bus interface chip in control area is activated at this time, in control module
Electricity, and then control data processing module and power on, image system is started to work, and four analogue cameras for being set to vehicle body surrounding start
Acquire picture signal；It is sent to analog-to-digital conversion module, is processed after converting analog signals into digital signal and sends data to
360 ° of panoramic pictures are corrected and be spliced into processing module；The image of splicing is completed by sending out after format conversion module converter
It send to video string module, is transferred to car entertainment host eventually by video interface；When gateway CAN Gate sending and image
When system-related signal, control module is sent to data processing module after receiving and parsing through, data processing module is based on the received
Signal carries out corresponding screen switching movement, can switch and observe vehicle's surroundings environment in real time in this way, to safe driving play compared with
Good booster action.
A kind of image system of the present embodiment can reduce cost by using analogue camera as its image collecting device.
Further, vision signal long distance transmission problem is solved by using analogue camera.Further, analogue camera is shot
Video carry out above-mentioned signal processing after, it is sent to car entertainment host with digital signal, so that image is more clear, is resisted
Interference performance is stronger, solves the problems, such as that image existing for analogue camera is fuzzy and poor anti jamming capability.Further, it uses
The flake wide angle camera of high definition (720P), the more traditional SD camera of output image, image effect is promoted obvious.Further,
In the utility model embodiment, the mode of the external coaxial cable of video output interface, more traditional twisted pair scheme saves cost.
It should be noted that, in this document, the term of the orientation or positional relationship of the instructions such as term " on ", "lower", is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.Unless otherwise specific
Regulation and restriction, term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to
It is detachably connected, or is integrally connected；It can be directly connected, it can also be indirectly connected through an intermediary.Such as, the first He
Second or the like relational terms are only used to distinguish one entity or operation from another entity or operation, without
It is certain to require or imply that there are any actual relationship or orders between these entities or operation.Moreover, term " packet
Include ", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion so that including the mistake of a series of elements
Journey, method, article or equipment not only include those elements, but also including other elements that are not explicitly listed, either
It further include for elements inherent to such a process, method, article, or device.In the absence of more restrictions, by sentence
The element that "including a ..." limits, it is not excluded that also deposit in the process, method, article or apparatus that includes the element
In other identical element.For the ordinary skill in the art, can be understood by concrete condition.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, the change that can be readily occurred in
Change or replace, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with right
It is required that protection scope subject to.
Claims (6)
1. a kind of image system, which is characterized in that be applied on vehicle, the image system includes, around 360 ° of directions of vehicle
Multiple cameras of upper distribution setting and the image process unit being electrically connected with the multiple camera, the camera are simulation phase
The video signal format of machine, the analogue camera shooting is TVI format；
The image process unit includes: analog-to-digital conversion module, data processing module and format conversion module, and the camera passes through
Analog-to-digital conversion module is electrically connected at the data processing module, and the data processing module is electrically connected at the format conversion
Module.
2. image system according to claim 1, which is characterized in that the resolution ratio of the analogue camera is at least 720P,
Frame per second is 30fps.
3. image system according to claim 1 or 2, which is characterized in that the image process unit further includes will be parallel
At the video string module of the data of serial transmission, the video string module input is electrically connected at the data conversion of transmission
The output end of the format conversion module.
4. image system according to claim 3, which is characterized in that the video string module output end is electrically connected at
Video interface module, the external coaxial wire of video interface module.
5. image system according to claim 4, which is characterized in that the image process unit further includes control module,
The control module is connect with data processing module and control area network-bus respectively.
6. image system according to claim 1, which is characterized in that the multiple camera includes being set to vehicle head
The third camera of first camera, the second camera of vehicle tail and vehicle two sides.
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| CN201920178842.4U CN209218250U (en) | 2019-01-31 | 2019-01-31 | A kind of image system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111083439A (en) * | 2019-12-16 | 2020-04-28 | 江苏开沃汽车有限公司 | Automobile high-resolution panoramic fusion system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111083439A (en) * | 2019-12-16 | 2020-04-28 | 江苏开沃汽车有限公司 | Automobile high-resolution panoramic fusion system |
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