CN105774651A - Vehicle lane change auxiliary system - Google Patents
Vehicle lane change auxiliary system Download PDFInfo
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- CN105774651A CN105774651A CN201410829608.5A CN201410829608A CN105774651A CN 105774651 A CN105774651 A CN 105774651A CN 201410829608 A CN201410829608 A CN 201410829608A CN 105774651 A CN105774651 A CN 105774651A
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Abstract
The invention relates to a vehicle lane change auxiliary system used for assisting a vehicle in safe lane change in the traveling process. The vehicle lane change auxiliary system comprises a vehicle-mounted lane change auxiliary device. The vehicle-mounted lane change auxiliary device comprises vehicle-mounted radar, a vehicle-mounted ECU and an alarm display device, all of which are sequentially connected. The system further comprises a vehicle-mounted front view device. The vehicle-mounted front view device comprises a front view camera, an A/D converter, a video decoder and a signal processor, all of which are sequentially connected. The front view camera is installed at the front end of a vehicle. The signal processor is connected with the vehicle-mounted ECU through a vehicle bus. Compared with the prior art, the vehicle lane change auxiliary system has the beneficial effects of being high in driving safety, high in lane change reliability, high in compatibility and expansibility and the like.
Description
Technical field
The present invention relates to vehicular field, especially relate to a kind of vehicle lane change aid system.
Background technology
Along with popularizing of automobile consumption, people are more and more higher to the requirement of automotive safety, and nonstandard driving behavior is the one of the main reasons causing having an accident.Wherein, not playing steering indicating light before changing Lane is the main cause causing car accident in the same direction.Simultaneously, existing lane change aid system can pass through the target in sensor (such as radar, ultrasonic etc.) detection vehicle blind zone, thus driver by after playing steering indicating light and informing that system lane change is intended to, it is possible to remind the unsafe lane change behavior of driver by the alarm form such as sound.But, the premise that current lane change aid system effectively works is in that system can be intended to by the lane change of steering indicating light signal acquisition driver.If driver is owing to being not turned on steering indicating light when nonstandard driving behavior (not playing lamp such as lane change) or other any reason cause lane change, then current lane change aid system cannot know that the lane change of driver is intended to effectively, thus alarm signal can not be provided for dangerous lane change behavior in time.
Forward-looking vision system has been installed on various vehicle widely currently as a kind of active safety product, realize deviation warning, frontal collisions early warning, track maintenance auxiliary etc. by image procossing, but system not relevant at present is integrated into forward-looking vision system in other system of vehicle as a module.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and the vehicle lane change aid system that a kind of drive safety is high, lane change reliability is high, compatible extensions is strong is provided.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of vehicle lane change aid system, in order to auxiliary vehicle safety lane change in the process of moving, equipment is assisted including vehicle-mounted lane change, described vehicle-mounted lane change auxiliary equipment includes the trailer-mounted radar, vehicle-mounted ECU and the warning display device that are sequentially connected with, this system also includes vehicle-mounted forward looking device, described vehicle-mounted forward looking device includes the forward sight photographic head, A/D converter, Video Decoder and the signal processor that are sequentially connected with, described forward sight photographic head is arranged on automotive front end, and described signal processor is connected with vehicle-mounted ECU by automobile bus.
When automobile lane change, forward sight photographic head obtains the lane line video image in track, automobile place in real time, and the conversion by A/D converter and Video Decoder of the lane line video image of acquisition and decoding are delivered in signal processor, signal processor is by judging that lane line video image information determines vehicle whether lane change, then lane change information is sent to vehicle-mounted ECU, vehicle-mounted ECU is judged by the signal of trailer-mounted radar got and lane change informix, and is displayed by warning display device and report to the police.
Described forward sight photographic head can be any type of photographic head, including high-resolution full-view camera.
Described A/D converter is AD8112 video conversion matrix.
Described signal processor is dsp processor, arm processor or EmbeddedPC processor, and Built-in Image recognizer module, and described image recognition algorithm module adopts existing image recognition algorithm.
Described warning display device includes Vehicular display device, vehicle carried lamp and vehicle-mounted buzzer, and described Vehicular display device, vehicle carried lamp and vehicle-mounted buzzer are connected with vehicle-mounted ECU respectively.
Described automobile bus is CAN, Lin bus or MOST bus.
Described vehicle-mounted ECU is provided with onboard sensor expansion interface.
Compared with prior art, the invention have the advantages that
One, drive safety is high: the present invention can pass through video monitoring vehicle carry out lane change, and automatically identifies that lane change behavior is thus providing alarm signal, thus preventing not open steering indicating light due to driver and system work not yet in effect and the accident that causes
Two, lane change reliability is high: when the present invention can carry out lane change in track, it is possible to when driver is not turned on steering indicating light, remain to normally effectively be worked by video identification, thus reducing the system operation requirement for driver.
Three, compatible extensions is strong: the vehicle-mounted ECU of the present invention is provided with onboard sensor expansion interface, somewhat changes control signal and can apply the present invention and follow and integrate mutually based on different types of lane change aid systems such as radar, ultrasonic and light sensations.
Accompanying drawing explanation
Fig. 1 is the system construction drawing schematic diagram of the present invention.
Wherein, 1, vehicle-mounted lane change auxiliary equipment, 2, vehicle-mounted forward looking device, 11, trailer-mounted radar, 12, vehicle-mounted ECU, 21, forward sight photographic head, 22, A/D converter, 23, Video Decoder, 24, signal processor, 131, Vehicular display device, 132, vehicle carried lamp, 133, vehicle-mounted buzzer.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment:
As shown in Figure 1, a kind of vehicle lane change aid system, in order to auxiliary vehicle safety lane change in the process of moving, equipment 1 is assisted including vehicle-mounted lane change, described vehicle-mounted lane change auxiliary equipment 1 includes the trailer-mounted radar 11 being sequentially connected with, vehicle-mounted ECU 12 and warning display device, this system also includes vehicle-mounted forward looking device 2, described vehicle-mounted forward looking device 2 includes the forward sight photographic head 21 being sequentially connected with, A/D converter 22, Video Decoder 23 and signal processor 24, described forward sight photographic head 21 is arranged on automotive front end, described signal processor 24 is connected with vehicle-mounted ECU 12 by automobile bus.
Forward sight photographic head can be any type of photographic head, adopts high-resolution full-view camera in the present embodiment.
A/D converter 22 is AD8112 video conversion matrix.
Signal processor 24 is dsp processor, arm processor or EmbeddedPC processor, and Built-in Image recognizer module, and this module finally exports whether Current vehicle is in lane change situation, including lane detection algorithm and lane change Activity recognition algorithm.
Lane identification is the feature according to real road lane line, calculates the variation characteristic of gray value in image, it is determined that lane line position in the picture, and the calibration result according to photographic head, it is determined that vehicle is relative to the actual lateral position in track.
In lane change Activity recognition algorithm, by the current motion state according to the lane line that obtains of detection and vehicle and calculated vehicle in the position of lane line, calculate vehicle and start to roll the time required for current lane (pressing certain side lane line) away from.When this time less than certain threshold value time, it was shown that a lane change behavior detected.Vehicle completes lane change, after entering another track, equally by the end according to the position judgment lane change behavior of vehicle of the lane change Activity recognition algorithm.
Warning display device includes Vehicular display device 131, vehicle carried lamp 132 and vehicle-mounted buzzer 133, and described Vehicular display device 131, vehicle carried lamp 132 and vehicle-mounted buzzer 133 are connected with vehicle-mounted ECU 12 respectively.
Automobile bus is CAN, Lin bus or MOST bus.
Vehicle-mounted ECU 12 is provided with onboard sensor expansion interface 121.
A kind of novel vehicle lane change aid system, merge forward-looking vision module, by this module, the detection of lane line is identified the lane change behavior in track, so that this lane change aid system can identify the lane change behavior of vehicle automatically, effective alarm signal can be provided for unsafe lane change behavior when steering indicating light opens or closes.When automobile lane change, forward sight photographic head 21 obtains the lane line video image in track, automobile place in real time, and the conversion by A/D converter 22 and Video Decoder 23 of the lane line video image of acquisition and decoding are delivered in signal processor 24, signal processor 24 is by judging that lane line video image information determines vehicle whether lane change, then lane change information is sent to vehicle-mounted ECU 12, vehicle-mounted ECU 12 is judged by the signal of trailer-mounted radar 11 and the lane change informix got, and is displayed by warning display device and report to the police.
Claims (7)
1. a vehicle lane change aid system, in order to auxiliary vehicle safety lane change in the process of moving, equipment (1) is assisted including vehicle-mounted lane change, described vehicle-mounted lane change auxiliary equipment (1) includes the trailer-mounted radar (11) being sequentially connected with, vehicle-mounted ECU (12) and warning display device, it is characterized in that, this system also includes vehicle-mounted forward looking device (2), described vehicle-mounted forward looking device (2) includes the forward sight photographic head (21) being sequentially connected with, A/D converter (22), Video Decoder (23) and signal processor (24), described forward sight photographic head (21) is arranged on automotive front end, described signal processor (24) is connected with vehicle-mounted ECU (12) by automobile bus.
When automobile lane change, forward sight photographic head (21) obtains the lane line video image in track, automobile place in real time, and the lane line video image obtained is delivered in signal processor (24) by conversion and the decoding of A/D converter (22) and Video Decoder (23), signal processor (24) is by judging that lane line video image information determines vehicle whether lane change, then lane change information is sent to vehicle-mounted ECU (12), vehicle-mounted ECU (12) is judged by the signal of trailer-mounted radar (11) got and lane change informix, and displayed by warning display device and report to the police.
2. a kind of vehicle lane change aid system according to claim 1, it is characterised in that described forward sight photographic head (21) includes high-resolution full-view camera.
3. a kind of vehicle lane change aid system according to claim 1, it is characterised in that described A/D converter (22) is AD8112 video conversion matrix.
4. a kind of vehicle lane change aid system according to claim 1, it is characterised in that described signal processor (24) is dsp processor, arm processor or EmbeddedPC processor, and Built-in Image recognizer module.
5. a kind of vehicle lane change aid system according to claim 1, it is characterized in that, described warning display device includes Vehicular display device (131), vehicle carried lamp (132) and vehicle-mounted buzzer (133), and described Vehicular display device (131), vehicle carried lamp (132) and vehicle-mounted buzzer (133) are connected with vehicle-mounted ECU (12) respectively.
6. a kind of vehicle lane change aid system according to claim 1, it is characterised in that described automobile bus is CAN, Lin bus or MOST bus.
7. a kind of vehicle lane change aid system according to claim 1, it is characterised in that described vehicle-mounted ECU (12) is provided with onboard sensor expansion interface (121).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410829608.5A CN105774651A (en) | 2014-12-26 | 2014-12-26 | Vehicle lane change auxiliary system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410829608.5A CN105774651A (en) | 2014-12-26 | 2014-12-26 | Vehicle lane change auxiliary system |
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| CN105774651A true CN105774651A (en) | 2016-07-20 |
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| CN201410829608.5A Pending CN105774651A (en) | 2014-12-26 | 2014-12-26 | Vehicle lane change auxiliary system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106515577A (en) * | 2016-11-25 | 2017-03-22 | 长安大学 | Device for decreasing lane changing early warning false alarm rate and method of device |
| WO2018023387A1 (en) * | 2016-08-02 | 2018-02-08 | 张阳 | Lane change warning based information pushing method and alarm system |
| CN108528333A (en) * | 2018-03-15 | 2018-09-14 | 吉利汽车研究院（宁波）有限公司 | A kind of lane change auxiliary alarm system |
| CN109050388A (en) * | 2018-08-07 | 2018-12-21 | 武汉理工大学 | A kind of lane line optical projection system and method based on digital micromirror technologies |
| CN111527736A (en) * | 2017-12-27 | 2020-08-11 | 斯堪尼亚商用车有限公司 | Method for configuring expansion interface and control unit |
| CN111696386A (en) * | 2020-05-13 | 2020-09-22 | 宁波吉利汽车研究开发有限公司 | Lane line-based auxiliary early warning system, method and medium |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018023387A1 (en) * | 2016-08-02 | 2018-02-08 | 张阳 | Lane change warning based information pushing method and alarm system |
| CN106515577A (en) * | 2016-11-25 | 2017-03-22 | 长安大学 | Device for decreasing lane changing early warning false alarm rate and method of device |
| CN106515577B (en) * | 2016-11-25 | 2020-05-05 | 长安大学 | Device and method for reducing false alarm rate of channel change early warning |
| CN111527736A (en) * | 2017-12-27 | 2020-08-11 | 斯堪尼亚商用车有限公司 | Method for configuring expansion interface and control unit |
| CN108528333A (en) * | 2018-03-15 | 2018-09-14 | 吉利汽车研究院（宁波）有限公司 | A kind of lane change auxiliary alarm system |
| CN109050388A (en) * | 2018-08-07 | 2018-12-21 | 武汉理工大学 | A kind of lane line optical projection system and method based on digital micromirror technologies |
| CN111696386A (en) * | 2020-05-13 | 2020-09-22 | 宁波吉利汽车研究开发有限公司 | Lane line-based auxiliary early warning system, method and medium |
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Application publication date: 20160720 |
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