CN202243186U - Back-view image device for dynamically indicating back-up track - Google Patents
Back-view image device for dynamically indicating back-up track Download PDFInfo
- Publication number
- CN202243186U CN202243186U CN 201120375421 CN201120375421U CN202243186U CN 202243186 U CN202243186 U CN 202243186U CN 201120375421 CN201120375421 CN 201120375421 CN 201120375421 U CN201120375421 U CN 201120375421U CN 202243186 U CN202243186 U CN 202243186U
- Authority
- CN
- China
- Prior art keywords
- image device
- backing track
- picture
- camera
- track
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Image Processing (AREA)
Abstract
The utility model relates to a back-view image device for dynamically indicating a back-up track. The back-view image device comprises a camera for obtaining a back-view image and a display screen for displaying the image obtained by the camera, and further comprises a data obtaining unit for obtaining a rotation angel value of a current vehicle steering wheel, and a control unit which is used for processing the rotation angel value of the steering wheel, obtaining a corresponding picture for showing the vehicle back-up track according to a processing result, and transmitting the image to the displaying screen. With the adoption of the back-view image device for dynamically indicating the back-up track, the back-view image device in the utility model has the following advantages that: by obtaining the rotation angel value of the steering wheel, obtaining the back-up track picture corresponding to the rotation value, and overlapping the back-up track picture on the vehicle back-view image obtained by the camera, the vehicle back-up track can be dynamically and immediately marked on the vehicle back-view image obtained by the camera. Therefore, the back-view image device in the utility model is convenient for a driver to identify and avoids the occurrence of collision.
Description
Technical field
The utility model relates to vehicle electronics, more particularly, relates to a kind of backsight image device of dynamic indication backing track.
Background technology
Rearview camera is installed on automobile and the image that it is obtained shown as a kind of auxiliary parking apparatus and progressively be applied to the modern times technical field of parking; Mainly be when reversing, to use the camera that is installed on automobile tail to take the terrestrial information at automobile rear; Be sent to through the video connection lead on the display equipment of operator's compartment; And the backing track in sign automobile dead aft, be used to indicate driver's avoiding barrier, accomplish visual reversing.But, lean on steering wheel rotation to change astern direction during owing to reversing automobile, and auxiliary parking apparatus of the prior art; Can only indicate the area image of automobile dead aft (direction of camera); Behind steering wheel rotation, can not be presented under the current bearing circle rotational angle automobile with the track that goes, particularly when the bearing circle rotational angle is big; Possibly there are bigger angular deviation in reversing travel track and the current image of obtaining, cause making collision case to take place easily.
The utility model content
The technical matters that the utility model will solve is; Can not be presented at the track of reversing automobile under the current bearing circle rotational angle, cause the defective of collision case easily to prior art above-mentioned, a kind of backsight image device that can show reversing automobile track under the current bearing circle rotational angle, remind driver's a kind of dynamic indication backing track is provided.
The utility model solves the technical scheme that its technical matters adopted: the backsight image device of constructing a kind of dynamic indication backing track; Comprise and be used to the read-out obtaining the camera of back view picture and show the image that said camera is obtained; It is characterized in that; Comprise that also the data that are used to obtain current rotation angle of automotive steering wheel numerical value obtain the unit, be used to handle said steering wheel angle numerical value and obtain the picture of cooresponding, expression reversing automobile track and said picture is transported to the control unit that said read-out shows according to result.
In the backsight image device of the described dynamic indication backing track of the utility model, said data obtain the unit comprise with automobile on CAN bus or LIN bus bonded assembly CAN transceiver or LIN transceiver.
In the backsight image device of the described dynamic indication backing track of the utility model, also comprise be used to store said prior setting, the picture of expression backing track and the memory cell that is electrically connected with said control unit.
In the backsight image device of the described dynamic indication backing track of the utility model, said memory cell is connected with said control unit through host interface unit.
In the backsight image device of the described dynamic indication backing track of the utility model, a plurality of pictures of said picture for setting in advance, represent the backing track that moving 1/10 circle of said bearing circle revolution is caused.
In the backsight image device of the described dynamic indication backing track of the utility model, said memory cell is a flash memories.
In the backsight image device of the described dynamic indication backing track of the utility model, said host interface unit is connected with control unit through HPI, is connected with said memory cell through spi bus.
In the backsight image device of the described dynamic indication backing track of the utility model, comprise that also being connected said data obtains the photoelectrical coupler between unit and automobile CAN-bus or the LIN bus.
In the backsight image device of the described dynamic indication backing track of the utility model, said camera and said read-out connect through coaxial cable; The stacked data that said control unit is exported said expression backing track picture through the I/O interface is added to said read-out and said coaxial cable bonded assembly input end.
In the backsight image device of the described dynamic indication backing track of the utility model, said camera be installed in automobile tail install the licence plate position above or below, and be connected with said read-out through video data line.
Implement the backsight image device of the dynamic indication backing track of the utility model; Has following beneficial effect: owing to obtain the numerical value of bearing circle rotational angle; And obtain with the cooresponding backing track picture of this rotation value and be added on the automotive rear-view image that camera obtains; Therefore can on the back view picture that camera is obtained, mark the track of reversing automobile dynamically, in real time, be convenient to driver's identification, the generation of crash-avoidance.
Description of drawings
Fig. 1 is the structural representation that the utility model is dynamically indicated the backsight image device embodiment of backing track;
Fig. 2 is the scheme drawing of the back view picture that shows on the read-out among the said embodiment and backing track stack;
Fig. 3 is the backing track scheme drawing during steering wheel rotation not among the said embodiment;
Fig. 4 is the backing track scheme drawing when clockwise rotating bearing circle among the said embodiment;
Fig. 5 is the backing track scheme drawing when rotating counterclockwise bearing circle among the said embodiment;
Fig. 6 is the position view that camera is installed among the said embodiment.
The specific embodiment
To combine accompanying drawing that the utility model embodiment is described further below.
As shown in Figure 1, dynamically to indicate among the backsight image device embodiment of backing track at the utility model, this device comprises that camera 1, read-out 2, data obtain unit 3, control unit 4, host interface unit 5 and memory cell 6; Wherein, camera 1 is used to obtain the back view picture of automobile rear and sends it to read-out 2, and read-out 2 shows the image that camera 1 is obtained; Data obtain the total wire joint of CAN on unit 3 and the automobile, and by obtaining data on the CAN bus, these data comprise current rotation angle of automotive steering wheel numerical value; That is to say that data obtain the node of unit 3 as automobile CAN-bus,, constantly receive the data on the CAN bus, and will wherein represent the data taking-up of rotation angle of automotive steering wheel value with the total wire joint of the CAN on the automobile; For now; General automobile generally is equipped with steering wheel angle sensor; EPC-755A photoelectric encoder etc. for example; Can steering wheel angle information be converted into impulse singla, the impulse singla of steering wheel angle sensor converts the CAN signal into through the transmission of vehicle body network through vehicle body ECU again.The corner of vehicle steering wheel sensor is to obtain the important device that chaufeur turns to intention, also is the important component part of automotive safety DAS (Driver Assistant System), is mainly used in the systems such as AFS, ESP, EPS, AS, LDW, 4WS, Active Suspension.So, on the CAN of vehicle body bus, there is above-mentioned bearing circle rotational angle value signal, it is by taking out on the bus with it that data obtain unit 3.Control unit 4 is used to handle the above-mentioned steering wheel angle numerical value that obtains and obtains picture cooresponding, expression reversing automobile track according to result, and the picture of obtaining is transported to read-out 2 demonstrations; On read-out 2; The picture of back view picture that above-mentioned camera 1 is obtained and above-mentioned expression reversing automobile track is superimposed; This makes the driver to come into plain view, and whether judge has obstacle on the track that is about to go, and then the appearance of crash-avoidance.At present embodiment, because of automobile steering wheel cw or conter clockwise both direction rotate 2 circles or 2.5 circles just forward the end to, in view of the above, bearing circle rotates per 1/10 circle (about 36 degree angles) just needs an auxiliary trajectory diagram, needs 51 figure altogether approximately.Be stored in advance in the external memory cell 6 containing different auxiliary trajectory diagrams, and in order picture called after M0, R1 ~ R25, L1 ~ L25 equal angles value (cooresponding is the angle that vehicle steering rotates).Read external image data through spi bus, the speed that reads image data is faster.Said; In the present embodiment; Above-mentioned picture is a plurality of pictures that set in advance, represent the backing track that moving 1/10 circle of vehicle steering revolution is caused, and these pictures are numbered and are stored in successively in the memory cell 6 according to the rotational angle value of its cooresponding bearing circle.In the present embodiment; Data obtain unit 3 be with vehicle body on the total wire joint of CAN; But, in other embodiments, data obtain unit 3 also can with the total wire joint of the LIN on the vehicle body; This moment, above-mentioned data obtained unit 3 node on the LIN bus just, the data that got on by above-mentioned LIN bus.
Because in the present embodiment; Data obtain unit 3 be with automobile on node of CAN bus bonded assembly; Therefore, in fact data to obtain unit 3 are a CAN transceiver (in other above-mentioned embodiment, it also can be the LIN transceivers that data obtain unit 3).Obtain on unit and the CAN bus through these data and to realize data interaction.In other embodiments, be not have the CAN bus on CAN bus or the automobile if data obtain unit 3 bonded assemblys, then data obtain unit 3 also can be other, meet the device that current data obtains requirement.In addition, in the present embodiment, it is that separate, interconnective with control unit 4 that above-mentioned data obtain unit 3; But in other embodiments, above-mentioned data obtain unit 3 and also can be embedded in the control unit 4, and promptly data obtain the part that unit 3 possibly be a control unit 4.
In the present embodiment, memory cell 6 is used to store picture prior setting, the expression backing track and is connected through host interface unit 5 with control unit 4.Said memory cell is a flash memories.Said host interface unit 5 is connected with control unit 4 through HPI, is connected with memory cell 6 through spi bus.Through with control unit 4 and host interface unit 5 bonded assembly HPIs, but control unit 4 at high speeds with command transfer to host interface unit 5, and host interface unit 5 obtains the image data that needs through the SPI interface again fast after receiving orders.Therefore, the existence of host interface unit 5 makes the image data in the external memory cell 6 to obtain apace.
In the present embodiment; For the appearance that prevents to disturb; Obtain between unit 3 and the vehicle body CAN bus in above-mentioned data, also be connected with the photoelectrical coupler (not shown) that is used for transmission signals, the signal on the vehicle body CAN bus carries out after the signal form conversion of electricity-light-electricity through photoelectrical coupler; Be transferred to data again and obtain unit 3, this makes interfering signal on the vehicle body by filtering.Certainly, if can confirm that the vehicle body interfering signal is little or from cost-effective angle, above-mentioned photoelectrical coupler can not add yet.Data obtain unit 3 and also can directly be electrically connected with vehicle body CAN bus.
As shown in Figure 2, in the present embodiment, camera 1 and read-out 2 connect through coaxial cable; Control unit 4 is exported the data of representing the backing track picture through the I/O interface, and the stacked data of these outputs is added to read-out 2 and coaxial cable bonded assembly input end.Like this; After showing the car that camera 1 is obtained on the read-out 2 during image; Appear at automobile that also having on the read-out obtain according to the current rotation angle of automotive steering wheel backing track under the situation of steering wheel rotation not simultaneously, judge under the situation of steering wheel rotation not collision whether to occur for the user.Image on the read-out 2 be the back view obtained of camera 1 as 21 with the stack that is illustrated in backing track line 22 under the current bearing circle rotational angle value; Certainly; In reversing process; In case bearing circle rotates on the basis of current angle greater than 1/10 circle (being that its rotational angle value changes); The cooresponding backing track of another bearing circle rotational angle value will occur, just can upgrade expression backing track picture (just the backing track line 22).As stated, be to realize the effect of above-mentioned image and picture stack, in the present embodiment, the I/O interface output expression backing track image data of control unit 4 through a setting is added to and connects the input end of coaxial cable on the read-out 2.
Backing track line 22 is described rear wheel is about to pass through when mainly being reversing automobile zone, along with the rotation of bearing circle, trajectory dynamically updates, and does not keep passing track, and only indication is about to the track that passes through at present; See also Fig. 3,4 and 5; Wherein, Fig. 3 be not the backing track line scheme drawing during steering wheel rotation (its picture that shows is exactly the backing track picture; Down together), Fig. 4 is the backing track line scheme drawing when clockwise rotating bearing circle, and Fig. 5 is the backing track line scheme drawing when rotating counterclockwise bearing circle.The data of representing these trajectory images are numbered the data that are stored in the memory cell 6.
Fig. 6 has represented the installation site of camera on automobile in the present embodiment; In Fig. 6; Camera is installed in the top that automobile tail is installed the licence plate position, and is connected with read-out 2 through video data line, and the image of obtaining is transferred on the read-out 2 and shows.Certainly, in other embodiments, camera also can be installed in the below that the licence plate position is installed by tailstock portion, as long as can obtain the back view picture of automobile when moveing backward exactly.
The above embodiment has only expressed several kinds of embodiments of the utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to the protection domain of the utility model.Therefore, the protection domain of the utility model patent should be as the criterion with accompanying claims.
Claims (10)
1. dynamic backsight image device of indication backing track; Comprise and be used to the read-out obtaining the camera of back view picture and show the image that said camera is obtained; It is characterized in that; Comprise that also the data that are used to obtain current rotation angle of automotive steering wheel numerical value obtain the unit, be used to handle said steering wheel angle numerical value and obtain the picture of cooresponding, expression reversing automobile track and said picture is transported to the control unit that said read-out shows according to result.
2. the backsight image device of dynamic indication backing track according to claim 1 is characterized in that, said data obtain the unit comprise with automobile on CAN bus or LIN bus bonded assembly CAN transceiver or LIN transceiver.
3. the backsight image device of dynamic indication backing track according to claim 2 is characterized in that, also comprise be used to store said prior setting, the picture of expression backing track and the memory cell that is electrically connected with said control unit.
4. the backsight image device of dynamic indication backing track according to claim 3 is characterized in that, a plurality of pictures of said picture for setting in advance, represent the backing track that moving 1/10 circle of said bearing circle revolution is caused.
5. the backsight image device of dynamic indication backing track according to claim 4 is characterized in that, said memory cell is connected with said control unit through host interface unit.
6. the backsight image device of dynamic indication backing track according to claim 5 is characterized in that, said memory cell is a flash memories.
7. the backsight image device of dynamic indication backing track according to claim 6 is characterized in that, said host interface unit is connected with control unit through HPI, is connected with said memory cell through spi bus.
8. the backsight image device of dynamic indication backing track according to claim 7 is characterized in that, comprises that also being connected said data obtains the photoelectrical coupler between unit and automobile CAN-bus or the LIN bus.
9. according to the backsight image device of any described dynamic indication backing track of claim 1-8, it is characterized in that said camera and said read-out connect through coaxial cable; The stacked data that said control unit is exported said expression backing track picture through the I/O interface is added to said read-out and said coaxial cable bonded assembly input end.
10. the backsight image device of dynamic indication backing track according to claim 9 is characterized in that, said camera be installed in automobile tail install the licence plate position above or below, and be connected with said read-out through video data line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120375421 CN202243186U (en) | 2011-09-28 | 2011-09-28 | Back-view image device for dynamically indicating back-up track |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120375421 CN202243186U (en) | 2011-09-28 | 2011-09-28 | Back-view image device for dynamically indicating back-up track |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202243186U true CN202243186U (en) | 2012-05-30 |
Family
ID=46104474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120375421 Expired - Fee Related CN202243186U (en) | 2011-09-28 | 2011-09-28 | Back-view image device for dynamically indicating back-up track |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202243186U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106713704A (en) * | 2015-07-21 | 2017-05-24 | 杭州海康威视数字技术股份有限公司 | Camera applied to automobile |
| CN112849154A (en) * | 2021-01-27 | 2021-05-28 | 广州路派电子科技有限公司 | Backing track and image auxiliary system and method |
-
2011
- 2011-09-28 CN CN 201120375421 patent/CN202243186U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106713704A (en) * | 2015-07-21 | 2017-05-24 | 杭州海康威视数字技术股份有限公司 | Camera applied to automobile |
| CN112849154A (en) * | 2021-01-27 | 2021-05-28 | 广州路派电子科技有限公司 | Backing track and image auxiliary system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207737201U (en) | Car panoramic looking-around system | |
| CN105946719A (en) | Panoramic all-round viewing auxiliary safety system of automobile | |
| CN206938606U (en) | A kind of vehicle panoramic looks around auxiliary image system | |
| CN205098062U (en) | Vehicle with multi -functional inside rear -view mirror | |
| JP6972938B2 (en) | Peripheral monitoring device | |
| CN104859545A (en) | Backup path line automatic adjustment device and method | |
| CN101515037A (en) | Composite type parking sensor | |
| CN104157134A (en) | Real-time on-line dead-zone-free street scene sharing system for vehicles | |
| CN205792924U (en) | Based on automobile wireless synthetic image DAS (Driver Assistant System) | |
| CN102114809A (en) | Integrated visualized parking radar image accessory system and signal superposition method | |
| CN201498098U (en) | Auxiliary device used for automobile parking direction and provided with radio-frequency transceiver | |
| CN106891811A (en) | A kind of automobile display system | |
| CN111409627A (en) | Intelligent driving control system | |
| CN202243186U (en) | Back-view image device for dynamically indicating back-up track | |
| CN213948406U (en) | Vehicle driving auxiliary system, vehicle-mounted unmanned aerial vehicle and vehicle-mounted host | |
| CN207826169U (en) | A kind of advanced driving assistance system | |
| CN102572379A (en) | Dynamic trajectory rear camera displaying accessory system and method | |
| CN214084044U (en) | Reinforced blind area detection central control system | |
| CN101938635B (en) | Composite image-type parking assisting system | |
| CN213138627U (en) | Panoramic all-round viewing system for automobile | |
| CN214267753U (en) | Remote driving system | |
| CN212796685U (en) | Multimedia system for displaying vehicle images and vehicle | |
| CN216184804U (en) | Driving assistance system and vehicle | |
| CN205344697U (en) | A video system for weighing card blind area | |
| CN106379238B (en) | Without CAN_BUS intelligent vehicle dynamic trajectory rear camera backsight image systems |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20120928 |