CN201393268Y - Reverse aid and camera head thereof - Google Patents
Reverse aid and camera head thereof Download PDFInfo
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- CN201393268Y CN201393268Y CN 200820203692 CN200820203692U CN201393268Y CN 201393268 Y CN201393268 Y CN 201393268Y CN 200820203692 CN200820203692 CN 200820203692 CN 200820203692 U CN200820203692 U CN 200820203692U CN 201393268 Y CN201393268 Y CN 201393268Y
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Abstract
The utility model discloses a reverse aid and an adopted camera head thereof. The utility model has the main improvement that in the camera head, image information marked with the movement tacks of vehicles during reverse is preinstalled in a memory; the image information has the corresponding relation with the steering angle information of a steering wheel obtained from a steering angle detector of the steering wheel of the vehicle; light which enters an image sensor from a camera is converted into image information by the image sensor; an image digital processing unit is used for reading the steering angle information of the steering angle detector of the steering wheel, reading corresponding image information in the memory according to the corresponding relation, forming image signals after overlapping the image information and the image information formed by the image sensor, and outputting the image signals to display in a digital mode. The utility model has the advantages of high integration degree, low cost and high imaging definition, and conforms to the modularization design concept.
Description
Technical field
Assisting with equipment and correlation technique when the utility model relates to vehicle backing relates in particular to a kind of reverse aid and camera corresponding thereof.
Background technology
CAN (Control Area Network, control area net network) and LI N (Local InterconnectNetwork, local internet network) be as two kinds of bussing techniques of automobile, is data and the signal transmission condition that provides the foundation between instrument and equipment in the automobile.By inserting this type of bus network, can read the data message of all kinds of instrument and equipments, comprise the steering wheel rotational angle information that is obtained from the corner detector that is connected with steering wheel for vehicle, thereby such data message can be offered miscellaneous equipment or instrument as the basic data source of further handling, to finish the data interaction of automobile instrument and equipment room.
Development along with technology, a kind of reverse aid has been proposed in the row, by combining of camera and display, show road surface live telecast on the one hand, on the other hand by a kind of technology that is independent of outside the camera, utilize default image and pavement image superimposed, make road conditions behind the car that had both shown on the display when moveing backward, identify the reversing track again simultaneously with reversing track identities function.Make things convenient for the driver to carry out car backing operation, and even can pay close attention to rear-view mirror and just can finish the reversing operation.
Fig. 1 and Fig. 2 have provided the theory diagram of two kinds of typical reverse aid, and the structure of its camera head 1 comprises camera 11, imageing sensor 12, image digitization processing unit 13 and memory 10.Imageing sensor 12 will be finished Video processing through image digitization processing unit 13 and cooperating of memory 10 after will being converted to the signal of telecommunication through the light that camera 11 imports into, make camera head 1 final outputting video signal; Because the vision signal of traditional camera head 1 output generally adopts analog format, thereby in order to finish the synthetic of image, the vision signal of its final output is carried out data transaction by an analog to digital converter 21 then, so that form the image digital signal process chip 22 that digital signal exports a special use to, with prestore image in the storage chip 20 that this chip 22 is connected with backing track identification function, image digital signal process chip 22 adopts OSD (screen menu type regulative mode) technology that this vision signal and this image with identification function are superposeed, thereby form the image output after the stack, and adaptation display 24,24 ' type is done, and suitable conversion is back to be shown on display.Output to conformable display 24 as converting analog video signal to through digital to analog converter 23 among Fig. 1; Then can directly finally in LCD 24 ', show among Fig. 2 by liquid crystal display-driving unit 23 '.
From Fig. 1 and Fig. 2 all as can be seen, from camera head 1 image recording to display 24,24 ' shows stack back image, middle through the multiple signal conversion, no matter be in the smoothing process when signal carries out digital-to-analogue conversion, still in the sampling process when carrying out analog-to-digital conversion, all can cause the phenomenon of degradation distortion under dropout, noise increase, the definition; In addition,,, need to increase extra hardware and finish, also cause the virtual height of manufacturing cost naturally for the OSD technology because institute is more through circuit.
Therefore, undoubtedly, the technology of traditional reverse aid constitutes still improvable space.
The utility model content
First purpose of the present utility model is to provide a kind of reverse aid camera head, strengthens its inside function, to realize adopting the structural simplification of miscellaneous equipment of this camera head.
Second purpose of the present utility model is to provide a kind of reverse aid that adopts above-mentioned camera head, assistant images when moveing backward more clearly with acquisition.
For realizing this purpose, the utility model is taked following technical scheme:
A kind of reverse aid camera head is used to produce the picture signal that has sign backing track and road surface live telecast simultaneously, comprises the camera, imageing sensor, image digitization processing unit and the memory that electrically connect successively, wherein,
This memory prestores first image information of the movement locus when having identified vehicle backing, has one-to-one relationship between the wheel steering angle information that obtains on this first image information and the steering wheel for vehicle corner detector;
Imageing sensor will be converted to second image information through the light that camera enters;
The image digitization processing unit, be used for the steering angle information of read direction dish corner detector and read corresponding first image information of memory, first image information and the superimposed back of second image information are formed the output of final image signal according to this corresponding relation.
More specifically, described image digitization processing unit and a network transceivers electrically connect, and the bus network that inserts vehicle by this network transceivers is finished reading the steering angle information of described steering wheel angle detector.Usually, described bus network is CAN or LIN.
A kind of reverse aid comprises:
Aforesaid camera head;
Display unit is used to the picture signal that shows that described image digitization processing unit is exported.
Among the embodiment of the present utility model, be provided with between the image digitization processing unit of described camera head and the display unit for both and finish the connector that removably connects.
Compared with prior art, the utlity model has following advantage:
At first, the utility model superposes with the default image with accessory ID function with the image digitization processing unit road pavement live image of camera head inside, needn't outside camera head, set up the relevant circuit of OSD technology in addition, save other simultaneously such as digital-to-analogue, analog-to-digital circuit, signals transmission need not pass through multiple conversions, thereby can reduce production costs, and improve the definition of product;
Secondly, the OSD technology is integrated in the camera head, meets the modular design concept of industrial design, be convenient to bus network such as CAN or LIN are fully utilized, be convenient to the batch process and the marketing of this camera head.
Description of drawings
Fig. 1 is the theory diagram of known a kind of reverse aid;
Fig. 2 is the theory diagram of known another kind of reverse aid, and it reaches the improvement on the syndeton of bringing therefrom with the different displays that adopted that only are of Fig. 1;
Fig. 3 is the theory diagram of reverse aid of the present utility model, has comprised camera head of the present utility model, display unit and automobile steering wheel corner detector;
Fig. 4 is the screen display schematic diagram of reverse aid of the present utility model when when work and vehicle steering are in a certain angle.
Embodiment
Seeing also Fig. 3 is described in detail the utility model:
Fig. 3 shows reverse aid of the present utility model, and wherein the core improvements are its camera head 3.In this reverse aid, comprise camera head 3, display unit 5 and connector 4, the effect of signal connector is to provide the dismountable connecting interface 4 between camera head 3 and the display unit 5.Also signal connector 4 can be removed, and the output of camera head 3 and the input of display unit 5 are directly electrically connected, also can realize transmission of video signals.
This camera head 3 starts when back of automobile automatically, comprises camera 31, imageing sensor 32, image digitization processing unit 33, memory 30 and network transceivers 35.
This camera 31 is arranged at the automobile rear, and it is gone into the ray cast of the road surface live telecast at automobile rear in this imageing sensor 32 in real time.
The light that this imageing sensor 32 will throw on it in real time is converted to the signal of telecommunication, thereby form second image information and send to this image digitization processing unit 33, known, this second image information generally is with visually continuous video signal transmission, show in the technical finesse that then the frame by plurality of continuous transmits one by one, thereby the synthetic of image hereinafter described in fact also is that unit carries out with the frame.
There is electrical connection between described memory 30 and the image digitization processing unit 33, on the memory 30 with the form of image file, perhaps the form with database is preset with several first image informations, each first image information is corresponding one by one with a steering angle of vehicle steering, for example when automotive steering angle is spent for right-hand rotation 30, the document number of the first corresponding image information is a1.bmp, and perhaps the row of Dui Ying data record number is the 1st capable; As when automotive steering angle for turning left 35 when spending, the document number of then corresponding first image information is that a2.bmp or data record row number are the 2nd row etc.Owing to have this kind corresponding relation, thereby file that first image information is occupied or data record are many more, can reflect subtly more just that in theory automobile each trickle angle when turning to changes the slight change of caused each movement locus.
First image information just can perform well in now pre-with combining of second image information and indicate when vehicle steering is in a certain steering angle the reverse motion track of this automobile.Show on the display screen, then can be as shown in Figure 4, R1 and R2 represent both sides, road surface traffic lane line among Fig. 4, belong to second image information that camera head 3 is shot with video-corder, L1 and L2 are first image information that reads in the memory 30, vehicle steering this moment (not shown) is assumed to be and is fixed on a certain angle, superpose by first image information that will characterize L1 and the concrete shape of L2 and second image information that characterizes the road surface live telecast of R1 and R2, just form synthetic back image information shown in Figure 4 and on screen, show, for driver's reference.
Above-mentioned first image information and the second image information synthetic function that superposes is realized by described image digitization processing unit 33, utilization OSD technology.At first by the angle information of network transceivers shown in Figure 3 35 through the bus network 8 read direction dish corner detectors 6 of automobile, this angle information is write down when vehicle steering is worked and is got by steering wheel angle detector 6 this image digitization processing unit 33; Secondly, to reading first image information that is pre-stored in the memory 30 by angle information; Then, second image information that 32 transmission of first image information and imageing sensor are come superposes synthetic, just becomes described synthetic back image information output.
The bus network 8 that described network transceivers 35 is inserted can be CAN or LIN, and perhaps other is used to finish the bus network 8 of data and message transmission between the automotive interior instrument and equipment.This network transceivers 35 is not only finished transmission-receiving function, generally also needs to finish the function of decoding and coding, and those skilled in the art should know this principle.
Connector 4 shown in Fig. 3 electrically connects with display unit 5 for the image digitization processing unit 33 of this camera head 3, and as previously mentioned, the picture signal of image digitization processing unit 33 also can directly be transferred to this display unit 5.
Known, display in the display unit 5 (not shown) both can adopt conformable display also can adopt LCD, the output signal form of pictorial information only need directly be set in DSP, not only exportable digital signal but also exportable analog signal can be provided with the output of which kind of signal according to the kind of display.Adopt the analog video signal output of standard in the present embodiment, then image signal processing unit 33 directly can be exported to a conformable display (as CRT monitor) and go up demonstration as display unit 5.
Those skilled in the art are after reading over this specification, and when can knowing, reverse aid of the present utility model both can independently be its camera head configuration display, also can with the miscellaneous equipment common display on the Auto Instrument desk.
Described image digitization processing unit 33 suits to adopt dsp chips, but does not also limit the use to other chip, such as FPGA.
In sum, the utility model product integrated degree height, by programming to image digitization processing unit 33, can realize the image digitization processing unit 33 of dynamic or static OSD line (reversing boost line, the sign effect of promptly aforementioned first image information is shown in L1 among Fig. 4 and L2), shared camera 31, directly read the steering wheel angle on CAN or the LIN network, cost is low, the definition height, and meet the design concept of Hyundai Motor.
The foregoing description is the utility model preferred implementation; but execution mode of the present utility model not merely is restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection range of the present utility model.
Claims (6)
1, a kind of reverse aid camera head is used to produce the picture signal that has sign backing track and road surface live telecast simultaneously, comprises the camera, imageing sensor, image digitization processing unit and the memory that electrically connect successively, it is characterized in that,
This memory, the movement locus when having identified vehicle backing of being used to prestore, and first image information one to one between the wheel steering angle information that obtains on the steering wheel for vehicle corner detector;
Imageing sensor will be converted to second image information through the light that camera enters;
The image digitization processing unit, be used for the steering angle information of read direction dish corner detector and read corresponding first image information of memory, first image information and the superimposed back of second image information are formed the output of final image signal according to this corresponding relation.
2, camera head according to claim 1, it is characterized in that: described image digitization processing unit and a network transceivers electrically connect, and the bus network that inserts vehicle by this network transceivers is finished reading the steering angle information of described steering wheel angle detector.
3, camera head according to claim 2 is characterized in that: described bus network is CAN or LIN.
4, a kind of reverse aid is characterized in that, comprising:
As any described camera head in the claim 1 to 3;
Display unit is used to the picture signal that shows that described image digitization processing unit is exported.
5, reverse aid according to claim 4 is characterized in that,
Be provided with between the image digitization processing unit of described camera head and the display unit for both and finish the connector that removably connects.
According to claim 4 or 5 described reverse aid, it is characterized in that 6, the display that is used for display image signals in the described display unit is a LCD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820203692 CN201393268Y (en) | 2008-11-19 | 2008-11-19 | Reverse aid and camera head thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820203692 CN201393268Y (en) | 2008-11-19 | 2008-11-19 | Reverse aid and camera head thereof |
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| Publication Number | Publication Date |
|---|---|
| CN201393268Y true CN201393268Y (en) | 2010-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200820203692 Expired - Lifetime CN201393268Y (en) | 2008-11-19 | 2008-11-19 | Reverse aid and camera head thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102065282A (en) * | 2010-12-07 | 2011-05-18 | 佛山市帮帮车居用品有限公司 | Camera integrated intelligent track backing system |
| 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 |
| CN110708591A (en) * | 2018-07-10 | 2020-01-17 | 杭州海康威视系统技术有限公司 | Image processing method and device and electronic equipment |
-
2008
- 2008-11-19 CN CN 200820203692 patent/CN201393268Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102065282A (en) * | 2010-12-07 | 2011-05-18 | 佛山市帮帮车居用品有限公司 | Camera integrated intelligent track backing system |
| 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 |
| CN110708591A (en) * | 2018-07-10 | 2020-01-17 | 杭州海康威视系统技术有限公司 | Image processing method and device and electronic equipment |
| CN110708591B (en) * | 2018-07-10 | 2022-04-26 | 杭州海康威视系统技术有限公司 | Image processing method and device and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STEELMATE CO., LTD. Free format text: FORMER OWNER: GUANGDONG STEELMATE SECURITY CO., LTD. Effective date: 20150121 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150121 Address after: Peace Avenue steelmate Industrial Park 528425 Guangdong city of Zhongshan province Dong Feng Zhen Dong Fu Lu Patentee after: STEELMATE CO., LTD. Address before: Peace Avenue steelmate Industrial Park 528425 Guangdong city of Zhongshan province Dong Feng Zhen Dong Fu Lu Patentee before: Guangdong Steelmate Security Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Peace Avenue steelmate Industrial Park 528425 Guangdong city of Zhongshan province Dong Feng Zhen Dong Fu Lu Patentee after: Rail car electronic Limited by Share Ltd Address before: Peace Avenue steelmate Industrial Park 528425 Guangdong city of Zhongshan province Dong Feng Zhen Dong Fu Lu Patentee before: STEELMATE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100127 |
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| CX01 | Expiry of patent term |