CN102848977B - Based on the network-linked method in the vehicle electronic system of ethernet and vehicle - Google Patents
Based on the network-linked method in the vehicle electronic system of ethernet and vehicle Download PDFInfo
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- CN102848977B CN102848977B CN201210225349.6A CN201210225349A CN102848977B CN 102848977 B CN102848977 B CN 102848977B CN 201210225349 A CN201210225349 A CN 201210225349A CN 102848977 B CN102848977 B CN 102848977B
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- image data
- ethernet
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- camera head
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40267—Bus for use in transportation systems
- H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle
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Abstract
In the present invention, the multiple camera head be equipped with in vehicle and AVM (Around View Monitoring) device perform data communication according to the ethernet communication mode as one of digital communication mode, thus formation makes the transmission line quantity of connection AVM device and multiple camera head realize minimized network loop.Make the system weight caused because of the transmission line of One's name is legion increase realization to minimize, thus finally can reduce vehicle weight, improve fuel efficiency, in addition, described AVM device is according to ethernet communication mode, receive digitized image information not easily affected by noise, thus can provide image quality improved vehicle-surroundings image to chaufeur.
Description
Technical field
The present invention relates to vehicle electronic system, particularly relate to the vehicle electronic system possessing panoramic view monitoring device for image (Around view monitoring:AVM).
Background technology
Generally speaking, vehicle is not only pursued and is improved its driving performance, also by carrying the multiple electronic system needed for safety, pursues facility and the safe driving of chaufeur.
Day by day complicated along with the maximization of vehicle and road, as the rear sensory perceptual system of one of this electronic system, provides diversified rear perceptional function for eliminating difficulty that chaufeur stands when moveing backward.
Developing a kind of system recently, be not only rear, and install camera additional on the front of automobile, left side and right side, confirm all around when enabling chaufeur in parking or travel, and link with the steering direction of vehicle, the periphery situation of vehicle is demonstrated to chaufeur.Particularly link with the steering direction of vehicle, to the system of chaufeur display vehicle-surroundings situation, be called as panoramic view monitoring image (Around view monitoring:AVM) system (AVM apparatus).
But because original AVM system receives image information respectively from the multiple cameras being installed in vehicle, therefore, it is inevitable for carrying out design to the transmission line at least exceeding the camera number being installed in vehicle.The transmission line of these One's name is legions requires a large amount of expenses when the system of embodiment, causes the problem that entire system weight increases.
In addition, original AVM system receives the image information of simulation form from multiple camera.The image information of this simulation form exists very easily by the problem that external noise affects.
Summary of the invention
(technical matters that will solve)
Therefore, the object of this invention is to provide a kind of vehicle electronic system based on ethernet, reduce and connect multiple camera head of vehicle and the transmission line quantity of AVM device, the image information not being subject to external noise impact is passed to described AVM system, thus the image that quality can be provided outstanding to chaufeur.
Another object of the present invention is to provide a kind of network-linked method between multiple camera head and described AVM system be equipped with in described vehicle electronic system.
(means of dealing with problems)
For reaching as above object, an aspect of of the present present invention provides a kind of vehicle electronic system based on ethernet, and it comprises: multiple camera head, takes the image data of vehicle-surroundings situation after digitalisation, respectively image output data packet; And panoramic view monitoring device for image, according to ethernet communication mode, receive described digitized image data from described multiple camera head, utilize the described digitized image data received, the vehicle-surroundings image linked with the steering direction of described vehicle is provided.
Network-linked method between the multiple camera head be equipped with in the vehicle that another aspect of the present invention provides and AVM device, it is characterized in that comprising: collect step, after carrying out digitalisation by the image data of multiple camera head shooting vehicle-surroundings situations that vehicle is installed, collect digitized image data bag; Forwarding step, according to ethernet communication mode, sends to panoramic view monitoring device for image the digitized image data bag of described collection; And step is provided, utilize the described digitized image data bag that described panoramic view monitoring device for image receives, the vehicle-surroundings image linked with the steering direction of described vehicle is provided.
(effect of invention)
According to the present invention, multiple camera head of vehicle and AVM (Around View Monitoring) device perform data communication according to the ethernet communication mode as one of digital communication mode, thus formation makes the transmission line quantity of connection AVM device and multiple camera head realize minimized network loop.Make the system weight caused because of the transmission line of One's name is legion realize minimizing, thus finally can reduce vehicle weight, improve fuel efficiency.
In addition, described AVM device, according to ethernet communication mode, receives digitized image information not easily affected by noise, thus the vehicle-surroundings image that image quality can be provided to be improved to chaufeur.
Accompanying drawing explanation
Fig. 1 is the figure that the entirety of the vehicle electronic system based on ethernet of display one embodiment of the invention is formed.
Fig. 2 is the block diagram of the Inner Constitution of camera head and AVM device shown in display Fig. 1.
Fig. 3 is the figure of another embodiment of the network loop shown shown in Fig. 1 between multiple camera head and AVM device.
Fig. 4 is the figure of the another embodiment of the network loop shown shown in Fig. 1 between multiple camera head and AVM device.
Detailed description of the invention
In the present invention, the network-linked method between the multiple camera head be equipped with in a kind of vehicle and AVM device is disclosed.Specifically, in the present invention, be different from and originally sent to described AVM device from the image information of multiple camera head by plurality of transmission lines, but a kind of ethernet communication mode that can utilize as one of digital communication mode is disclosed, make the number of described transmission line realize minimized network-linked method.
With reference to the accompanying drawings, one embodiment of the present of invention are described in detail.
Fig. 1 is the figure that the entirety of the vehicle electronic system based on ethernet of display one embodiment of the invention is formed.
As shown in Figure 1, according to one embodiment of the invention, the vehicle electronic system 100 based on ethernet comprises: multiple camera head 110,120,130,140, is installed on the desired location of vehicle; AVM device 160, according to the ethernet communication mode as one of digital communication mode, carries out data communication with described multiple camera head 110,120,130,140.In addition, in the vehicle electronic system 100 of one embodiment of the invention, multiple camera heads 110,120,130,140 and described AVM device 160 are for perform ethernet communication, by Ethernet switch 150, form the network loop of the star (star) topology (topology) that described multiple camera head 110,120,130,140 and described AVM device 160 communicate to connect.
The image information that have taken described vehicle front, rear, left and right periphery situation collected by multiple camera head 110,120,130,140.This multiple camera head 110,120,130,140 is shooting vehicle-surroundings situation, be preferably placed on the vehicle body of such as car door, boot, car bonnet, left/right side outside rear-view mirror, but be not defined in these positions, as long as the position of vehicle-surroundings situation effectively can be taken, its installation site not circumscribed.In addition, described multiple camera head 110,120,130,140 is different from the original technology exporting simulation morphological image information, for carrying out ethernet communication with described AVM device 160, the image information collected being converted to digitized image data bag, sending to described AVM device 160.
AVM device 160, by described Ethernet switch 150, receives described digitized image data bag, utilizes the described digitized image data bag received, provides the vehicle-surroundings image linked with the steering direction of described vehicle.
Fig. 2 is the block diagram of the Inner Constitution of camera head and AVM device shown in display Fig. 1.Wherein, because the multiple camera heads 110,120,130,140 shown in Fig. 1 have identical formation and function respectively, so, utilize the explanation to a camera head, replace the explanation to all the other camera heads.
Therefore, in fig. 2, illustrate only the Inner Constitution of the camera head 110 communicated to connect with the AVM device 160 shown in Fig. 1.
As shown in Figure 2, first, camera head 110 comprises shooting head 110A, data processing division 110B, transmitter side ethernet control part 110C and sending part 110D.
Shooting head 110A is for collecting the image data that have taken vehicle-surroundings situation, and have camera lens, the optical information transmitted by described camera lens is converted to can at the image information of camera head inter-process.
Data processing division 110B converts digitized image data to the image information from described shooting head 110A, for carrying out compressing and converting with the digitized image data of high bandwidth transmission.
Transmitter side ethernet control part 110C is used for the described digitized image data of compressing and converting to convert the digitized image data bag showed according to Ethernet protocol to, for this reason, can comprise MAC (medium access control; Medium education) module and PHY module.MAC module is as the control setup for Control ethernet media (Ethernet Media), the operation of data link layer can be carried out, data can be received from main frame 106, header (header) can be added, or, in order to carry out route (routing) by network, data can be divided into bag (packetize), these data can be passed to PHY module.In addition, MAC module can from PHY module receive bit, can this bit recombinate (reassemble) become data packet, can also this Packet Generation to AMP device 160.In addition, as an example of MAC module, based on IEEE 802.3 standard, embodiment Ethernet protocol can be set to.One of multiple function of motion of PHY module, exactly for digitized image data bag is converted to physics electric signal, can be included in the multiple logic, loop, code etc. of transmission and reception physical layer symbols on physical medium.This PHY module receives digitized image data bag from described MAC module, this digitized image data bag can be converted to one or more physical layer symbols, these symbols can be introduced (impress) physical medium.In addition, PHY module receives physical layer symbols, can process, to detect the data bits showed by means of these symbols, these data bits can be passed to MAC module to these symbols.PHY module can access with one or more in the multiple physical medium of such as copper, optical fiber and/or backboard (backplane).
Transmitter 110D the physics electric signal transmission of described MAC module converts to Ethernet switch 150.
Ethernet switch 150, for the physics electric signal received is passed to AMP device 160 by a cable 155 of such as UTP, controls the network path of such as suitable exchange, route, bridge joint etc., so that not by the signal disturbing that other camera heads send.As a result, from the position of AMP device 160, have nothing to do with the number of the camera head that vehicle is installed, receive image data bag by a cable from each camera head, thus greatly can reduce the quantity of transmission line.
Secondly, the AVM system 160 of carrying out ethernet communication with camera head 110 comprises receptor 160A, receiver side ethernet control part 160B, image processing portion 160C and display part 160D.
Receptor 160A receives the physics electric signal received by Ethernet switch 150, is passed to receiver side ethernet control part 160B.
Receiver side ethernet control part 160B, according to the rule based on Ethernet protocol, is resolved the physics electric signal received by receptor, extracts described digitized image data bag, from the digitized image data bag extracted, restore image data.
Image processing portion 160C converts described image data to the data that can process in described display part, and display part 160D, according to described image data, is supplied to user the vehicle-surroundings image that the steering direction with vehicle links.
Fig. 3 and Fig. 4 is the accompanying drawing of another embodiment of the network loop shown shown in Fig. 1 between multiple camera head and AVM device.
Be different from the situation of the Fig. 1 forming star fashion topology, the network loop of Fig. 3 is the example of the topology forming daisy chain (daisy chain) mode, now, cable forms easily, can direct communication between each composition module 110,120,130,140,160, good extendability is provided.In the case of figure 3, the function of Ethernet switch can be equipped on each composition module 110,120,130,140,160, and each composition module devises 2 ethernet ports.
The network loop of Fig. 4 is the example of the topology forming ring (Ring) shape mode, now, there is the cable connection structure of multiple line, therefore, compared with the situation of Fig. 1 and Fig. 3, although the number of cables being directly connected in AMP device can have increased slightly, the advantage had is, flow dispersion treatment can be realized, and good extendability can be provided.Now also similar with the situation of Fig. 3, be designed to each composition module 110,120,130,140,160 and perform Ethernet exchanging function, design 2 ethernet ports respectively.Add ground, ring management agreement can also be added.
Be no matter the topology of any mode formed in star fashion, daisy chaining, circular pattern, the effect that can reduce original transmission line quantity is all provided, other network design configuration in vehicle can be considered, suitably selected by design engineer.
The explanation done as above, in the present invention, the multiple camera head be equipped with in vehicle and AVM (Around View Monitoring) device perform data communication according to the ethernet communication mode as one of digital communication mode, thus formation makes the transmission line quantity of connection AVM device and multiple camera head realize minimized network loop.Make the system weight caused because of the transmission line of One's name is legion increase realization to minimize, thus finally can reduce vehicle weight, improve fuel efficiency, in addition, described AVM device is according to ethernet communication mode, receive digitized image information not easily affected by noise, thus can provide image quality improved vehicle-surroundings image to chaufeur.
On the other hand, general technical staff of the technical field of the invention is appreciated that the present invention is under the prerequisite not changing its technological thought or required feature, can implement with other concrete forms.Therefore, the embodiment of above description is interpreted as, in all respects all as example, and non-limiting.Protection scope of the present invention should be interpreted as: be not by described detailed description, but showed by claims, and all changes of concept derivation of Accessory Right claim and its equalization or the form of distortion, be all included within the scope of the present invention.
Claims (6)
1., based on a vehicle electronic system for ethernet, it is characterized in that comprising:
Multiple camera head, digitalisation is carried out to the image data of shooting vehicle-surroundings situation and after compressing and converting, the digitized image data of described compressing and converting is converted to the described digitized image data bag according to Ethernet protocol performance, and export described image data bag respectively; And
Panoramic view monitoring device for image, according to ethernet communication mode, described digitized image data bag is received from described multiple camera head, according to described Ethernet protocol, restore described image data from the described digitized image data bag received, the vehicle-surroundings image linked with the steering direction of described vehicle is provided;
Wherein said multiple camera head comprises respectively:
Shooting head, receives the image data of the described periphery situation of shooting;
Data processing division, carries out digitalisation, for carrying out compressing and converting with the digitized image data of high wideband transmit to the image data received; And
Transmitter side ethernet control part, the described digitized image data of compressing and converting, converts the described digitized image data bag showed according to described Ethernet protocol to, is supplied to described panoramic view monitoring device for image;
Described panoramic view monitoring device for image comprises:
Receiver side ethernet control part, receives described digitized image data bag from described transmitter side ethernet control part, according to described Ethernet protocol, restores described image data from described digitized image data bag; And
Display part, according to described image data, the vehicle-surroundings image that display links with the steering direction of described vehicle.
2. the vehicle electronic system based on ethernet according to claim 1, is characterized in that:
Described panoramic view monitoring image system utilize bus topology, Star topology, chrysanthemum chain topology and ring topology in any one, form network loop with described multiple camera head, communicate according to described ethernet communication mode with described multiple camera head.
3. the vehicle electronic system based on ethernet according to claim 2, is characterized in that:
At described panoramic view monitoring image system in described Star topology mode, when forming network loop with described multiple camera head,
Described multiple camera head, by comprising the node of Ethernet switch, ethernet bridge, ethernet router, communicates with described panoramic view monitoring image system.
4. the vehicle electronic system based on ethernet according to claim 2, is characterized in that:
At described panoramic view monitoring image system in any one mode in chrysanthemum chain topology and ring topology, when forming network loop with described multiple camera head,
Described panoramic view monitoring image system and described multiple camera head have Ethernet exchanging function respectively.
5. the vehicle electronic system based on ethernet according to claim 2, is characterized in that:
Described panoramic view monitoring image system and described multiple camera head have 2 ethernet ports respectively.
6. the network-linked method between the camera head be equipped with in vehicle and AVM device, is characterized in that comprising:
Collect step, digitalisation is carried out and after compressing and converting by the image data of the multiple camera heads shooting vehicle-surroundings situations that vehicle is installed, the digitized image data of described compressing and converting is converted to the described digitized image data bag according to Ethernet protocol performance, and collect digitized image data bag;
Forwarding step, according to ethernet communication mode, receives described digitized image data bag, according to described Ethernet protocol, restores described image data, and send to panoramic view monitoring device for image from the digitized image data bag of described collection; And
Step is provided, utilizes the described digitized image data bag that described panoramic view monitoring device for image receives, the vehicle-surroundings image linked with the steering direction of described vehicle is provided;
Wherein said multiple camera head comprises respectively:
Shooting head, receives the image data of the described periphery situation of shooting;
Data processing division, carries out digitalisation, for carrying out compressing and converting with the digitized image data of high wideband transmit to the image data received; And
Transmitter side ethernet control part, the described digitized image data of compressing and converting, converts the described digitized image data bag showed according to described Ethernet protocol to, is supplied to described panoramic view monitoring device for image;
Described panoramic view monitoring device for image comprises:
Receiver side ethernet control part, receives described digitized image data bag from described transmitter side ethernet control part, according to described Ethernet protocol, restores described image data from described digitized image data bag; And
Display part, according to described image data, the vehicle-surroundings image that display links with the steering direction of described vehicle.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2011-0065542 | 2011-07-01 | ||
| KR1020110065542A KR20130003902A (en) | 2011-07-01 | 2011-07-01 | Electronic system for a vehicle based on ethernet and method for interconnecting plural photographing apparatus and avm apparatus in the vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102848977A CN102848977A (en) | 2013-01-02 |
| CN102848977B true CN102848977B (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210225349.6A Active CN102848977B (en) | 2011-07-01 | 2012-06-29 | Based on the network-linked method in the vehicle electronic system of ethernet and vehicle |
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| Country | Link |
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| KR (1) | KR20130003902A (en) |
| CN (1) | CN102848977B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201439982A (en) * | 2013-04-03 | 2014-10-16 | Ind Tech Res Inst | Around view detecting system and method |
| KR102075168B1 (en) * | 2013-06-10 | 2020-03-02 | 현대모비스 주식회사 | Ethernet network based blackbox system for vehicle |
| KR101500094B1 (en) | 2013-07-01 | 2015-03-06 | 현대자동차주식회사 | Message transmission/reception system and method for ethernet-based vehicle network |
| KR102110500B1 (en) * | 2013-07-03 | 2020-05-13 | 현대모비스 주식회사 | Electronic system for vehicle including ethernet camera system |
| KR101460570B1 (en) * | 2013-10-14 | 2014-11-13 | 현대모비스(주) | Camera Position Recognition System |
| KR101490409B1 (en) * | 2014-02-13 | 2015-02-05 | 현대자동차주식회사 | Control unit for in-vehicle ethernet and method for controlling therof |
| KR102239012B1 (en) * | 2014-11-07 | 2021-04-13 | 현대모비스 주식회사 | Pattern-detect AVM system |
| CN104385987B (en) * | 2014-11-14 | 2017-01-11 | 东风汽车有限公司 | Automobile monitoring method and system |
| KR101601773B1 (en) | 2015-05-07 | 2016-03-09 | 서강대학교산학협력단 | addressing method for ethernet message in vehicle network |
| CN108172004A (en) * | 2017-11-30 | 2018-06-15 | 广州华夏职业学院 | One kind is for traffic light reminding device and system in vehicle |
| CN109334570B (en) * | 2018-10-30 | 2024-03-08 | 杭州鸿泉物联网技术股份有限公司 | Intelligent dregs car management system and intelligent dregs car |
| CN111988224A (en) * | 2019-05-21 | 2020-11-24 | 上汽通用汽车有限公司 | Vehicle-mounted Ethernet system |
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- 2011-07-01 KR KR1020110065542A patent/KR20130003902A/en not_active Application Discontinuation
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| CN1801216A (en) * | 2004-10-25 | 2006-07-12 | 日产自动车株式会社 | Driving support system and method of producing overhead view image |
| CN1865849A (en) * | 2005-05-20 | 2006-11-22 | 日产自动车株式会社 | Image display apparatus and method |
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| EP2124446A1 (en) * | 2008-05-19 | 2009-11-25 | Saab Ab | A control device and a method for adjusting the frame rate of a video image sequence |
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| KR20130003902A (en) | 2013-01-09 |
| CN102848977A (en) | 2013-01-02 |
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