CN103434442A - Night safety meeting system based on machine vision and control method of night safety meeting system - Google Patents
Night safety meeting system based on machine vision and control method of night safety meeting system Download PDFInfo
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- CN103434442A CN103434442A CN2013103798273A CN201310379827A CN103434442A CN 103434442 A CN103434442 A CN 103434442A CN 2013103798273 A CN2013103798273 A CN 2013103798273A CN 201310379827 A CN201310379827 A CN 201310379827A CN 103434442 A CN103434442 A CN 103434442A
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Abstract
The invention provides a night safety meeting system based on machine vision and a control method of the night safety meeting system. The meeting system comprises a photoelectronic imaging system, a digital signal processing and control system and a night vision system. The photoelectronic imaging system is used for collecting digital image signals and transmitting the signals to the digital signal processing and control system, and the digital signal processing and control system controls a high beam and a low beam to be switched according to processed digital information and controls on-off of the night vision system at the same time. The night safety meeting system can reduce high beam interference caused when two vehicles meet no matter whether the opposite side is provided with a lighting control system; meanwhile, the night safety meeting system is simple, reliable, low in misjudgment rate, capable of being combined with an automobile data recorder and strong in practical value and economic value.
Description
Technical field
The invention belongs to the vehicle safety technical field, relate to the vehicle meeting system, particularly a kind of night safe based on machine vision is understood the control method of truck system and this system.
Background technology
During vehicle night meeting, one side's country beam can cause very large interference to the opposing party, make chaufeur can't see the place ahead road conditions clearly in the short time, very easily cause a traffic accident, similar case is too numerous to enumerate, when on the other hand, country beam is for night travel, chaufeur finds that the object of the distant nothings such as pedestrian active light source plays a very important role.
The impact that country beam causes chaufeur when reducing meeting is general by artificial conversion high-low beam light.But for various reasons,, chaufeur is often ignored and is closed country beam, to traffic safety, brings hidden danger.And what nighttime meeting system major part adopted at present is photoconductive cell, and significant limitation is arranged, street lamp, neon light or other roadside secondary light sources all can exert an influence to photoconductive cell.Self-propelled vehicle lighting installation outside this car country beam interference range also can exert an influence to photosensitive resistance sensor, causes country beam to be closed in the wrong time.In actual applications simultaneously, the interference that the country beam of sending a car while wanting to reduce meeting causes, whether mainly depending on sends a car is equipped with similar lamp light control system, and limitation is larger.
Summary of the invention
The object of the invention is to overcome the prior art defect, provide a kind of night safe based on machine vision to understand the control method of truck system and this system, alleviate the dazzling situation that other vehicles are caused for this vehicle when using country beam, and provide auxiliary visual field for Ben Che driver when vehicle is opened country beam over there.
For achieving the above object, the present invention is by the following technical solutions:
Night safe meeting truck system based on machine vision, comprise photo electric imaging system, digital signal processing and control system, night vision system; Photo electric imaging system is for the capturing digital image signal and send this signal to digital signal processing and control system, digital signal processing and control system are switched according to digital information control country beam and passing light after processing, control the opening and closing of night vision system simultaneously.
Described digital signal processing and control system comprise image processor and long-and-short distant light controller, and the camera of photo electric imaging system is connected with image processor by video input interface, and image processor is connected with night vision system with the long-and-short distant light controller respectively.
Described image processor is connected with voice cue module.
Described night vision system is that infrared night vision system comprises infrared camera and telltale, and infrared night vision system is connected with image processor by relay, by the break-make of relay-operated controller electric power system.
Described voice cue module is loud speaker.
A kind of control method of night safe meeting truck system comprises the following steps:
(1) gather the screen image by photo electric imaging system, monochrome information in statistical picture, brightness acquires a certain degree and thinks light source, then determine whether auto bulb by calculating R, G, the shared ratio of B three primary colours in light source, the light source that meets the auto bulb color if having thinks that potential sending a car arranged;
(2) while having the light source that meets auto bulb in picture, video image is carried out to binary conversion treatment, the light source wherein satisfied condition is extracted, calculate quantity and the position of light source;
(3) position of this light source is judged whether be positioned at the country beam interference range, if be positioned at country beam interference range while this car country beam in open mode, carried out the long-and-short distant light switching;
(4) then utilize algorithm of region growing to calculate the size of each light source, by the size of statistics light source, determine whether this light source can cause glare effect to Ben Che driver; If the infrared night vision monitored control system that has the possibility of dazzle open this car provides auxiliary visual field for the driver.
Step (3) if in be positioned at the country beam interference range simultaneously this car country beam be in open mode, first voice suggestion chaufeur is about to carry out the long-and-short distant light switching, and then carries out the long-and-short distant light switching.
Step (3) if in be positioned at the country beam interference range simultaneously this car country beam in open mode, country beam is switched to passing light, continue to reopen country beam after two seconds; Then, again determine whether and still have the auto bulb that is positioned at the country beam interference range, if having, after country beam is opened two seconds, again closed for two seconds, then again judge.
Beneficial effect of the present invention is as follows:
Night safe meeting truck system based on machine vision of the present invention, comprise photo electric imaging system, digital signal processing and control system, night vision system; After the screen image that photo electric imaging system is collected is sent into digital signal processing and control system processing, according to the graphical information after processing, judged whether to send a car, switch country beam and passing light if send a car, avoid causing interference to head-on sailing the vehicle come, the country beam of simultaneously ought sending a car is forgotten and is closed, and drives to this car and causes while disturbing, and opens night vision system, for chaufeur provides auxiliary visual field, help this car safe driving.The interference of native system does not rely on the other side's vehicle when whether lamp light control system being installed just can reducing both sides' meeting simultaneously country beam, system of the present invention is simple and reliable simultaneously, False Rate is low, can combine with drive recorder, has very strong practical value and economic value.
The accompanying drawing explanation
Fig. 1 is the system chart that the present invention understands truck system
Fig. 2 is the workflow diagram that the present invention understands truck system
The diagram of circuit that Fig. 3 is control method of the present invention
The specific embodiment
As shown in Figure 1, provide a kind of night safe meeting truck system based on machine vision, comprised camera 7, image processor 1, infrared night vision system; Camera 7 is for gathering the screen image and sending this screen image to image processor 1, and image processor 1 controls country beam according to the graphicinformation after processing and passing light is switched, and controls the opening and closing of infrared night vision system simultaneously.Camera 7 is connected with image processor 1 by video input interface 6, and image processor 1 is connected with infrared night vision system with long-and-short distant light controller 2 respectively, and image processor 1 also is connected with voice cue module 3.Infrared night vision system comprises infrared camera 4 and telltale 5, and infrared night vision system is connected with image processor 1 by relay, by the break-make of relay-operated controller electric power system.
As Fig. 2, during use at first camera be fixed between interior back view mirror and front shelves glass or interior back view mirror below, for gathering the image on automobile opposite, when driving a vehicle night, chaufeur is opened the nighttime meeting system, camera and image processing system are in running order.As there is light source in photographic images, judge whether it can cause glare effect to chaufeur, provide auxiliary visual field if having the dazzle light source open the night infrared night vision system by relay for chaufeur.Judge on the other hand in this car country beam interference range and whether have active light source, if when having active light source, this car country beam is in opening, by loud speaker voice suggestion chaufeur, be about to the long-and-short distant light switching, prevent light variable effect driver's suddenly judgement.Then system is carried out the switching of long-and-short distant light by the long-and-short distant light controller, within approximately every 2 seconds, once switches.
Figure by camera collection has judged whether to send a car, whether the light source of sending a car is to affect the dazzle that this car is driven, and then switching long-and-short distant light, avoid causing to sending a car driving and disturb, if send a car, this car is driven to disturb and open infrared night vision system, for chaufeur provides auxiliary visual field, guarantee driving safety.
As shown in Figure 3, the present invention also provides a kind of control method of the night safe meeting truck system based on machine vision, comprises the following steps:
(1) by camera collection screen image, monochrome information in statistical picture, brightness acquires a certain degree and thinks light source, then determine whether auto bulb by calculating R, G, the shared ratio of B three primary colours in light source, the light source that meets the auto bulb color thinks that potential sending a car arranged;
(2) while having the light source that meets auto bulb in picture, video image is carried out to binary conversion treatment, the light source wherein satisfied condition is extracted, calculate quantity and the position of light source;
(3) position of this light source is judged, whether be positioned at country beam interference range (general country beam interference range be similar to trapezoidal), if be positioned at country beam interference range while this car country beam in open mode, first voice suggestion chaufeur is about to carry out the long-and-short distant light switching, then carry out the long-and-short distant light switching, approximately switching in two seconds once.Then determine whether and still have the auto bulb that is positioned at the country beam interference range, if having, after country beam is opened 2 seconds, again closed for two seconds, then again judge.
(4) then utilize algorithm of region growing to calculate the size of each light source, by the size of statistics light source, determine whether this light source can cause glare effect to Ben Che driver; If the infrared night vision monitored control system that has the possibility of dazzle open this car provides auxiliary visual field for the driver.
Can judge fast by above method whether to area source be car light, and then identify fast position and the quantity of light source, for the meeting truck system provides reference, carry out the opening and closing of long-and-short distant light switching and infrared night vision system, guarantee the driving safety of sending a car and this car is driven, reducing traffic accident occurs, compare existing meeting truck system, this method is simple, and recognition speed is fast, can not affect the switching of long-and-short distant light because of extraneous other light sources, judging nicety rate is high.
Claims (8)
1. the meeting of the night safe based on machine vision truck system, is characterized in that: comprise photo electric imaging system, digital signal processing and control system, night vision system; Photo electric imaging system is for the capturing digital image signal and send this signal to digital signal processing and control system, digital signal processing and control system are switched according to digital information control country beam and passing light after processing, control the opening and closing of night vision system simultaneously.
2. the night safe based on machine vision according to claim 1 is understood truck system, it is characterized in that: described digital signal processing and control system comprise image processor (1) and long-and-short distant light controller (2), the camera of photo electric imaging system (7) is connected with image processor (1) by video input interface (6), and image processor (1) is connected with night vision system with long-and-short distant light controller (2) respectively.
3. the night safe based on machine vision according to claim 2 is understood truck system, and it is characterized in that: described image processor (1) is connected with voice cue module (3).
4. the night safe based on machine vision according to claim 2 is understood truck system, it is characterized in that: described night vision system is that infrared night vision system comprises infrared camera (4) and telltale (5), infrared night vision system is connected with image processor (1) by relay, by the break-make of relay-operated controller electric power system.
5. the night safe based on machine vision according to claim 3 is understood truck system, it is characterized in that: described voice cue module (3) is loud speaker.
6. the control method that claim 1 night safe can truck system is characterized in that comprising the following steps:
(1) gather the screen image by photo electric imaging system, monochrome information in statistical picture, brightness acquires a certain degree and thinks light source, then determine whether auto bulb by calculating R, G, the shared ratio of B three primary colours in light source, the light source that meets the auto bulb color if having thinks that potential sending a car arranged;
(2) while having the light source that meets auto bulb in picture, video image is carried out to binary conversion treatment, the light source wherein satisfied condition is extracted, calculate quantity and the position of light source;
(3) position of this light source is judged whether be positioned at the country beam interference range, if be positioned at country beam interference range while this car country beam in open mode, carried out the long-and-short distant light switching;
(4) then utilize algorithm of region growing to calculate the size of each light source, by the size of statistics light source, determine whether this light source can cause glare effect to Ben Che driver; If the infrared night vision monitored control system that has the possibility of dazzle open this car provides auxiliary visual field for the driver.
7. control method according to claim 6, it is characterized in that: step (3) if in be positioned at the country beam interference range simultaneously this car country beam in open mode, first voice suggestion chaufeur is about to carry out the long-and-short distant light switching, and then carries out the long-and-short distant light switching.
8. control method according to claim 6 is characterized in that: step (3) if in be positioned at the country beam interference range simultaneously this car country beam in open mode, country beam is switched to passing light, continue to reopen country beam after two seconds; Then, again determine whether and still have the auto bulb that is positioned at the country beam interference range, if having, after country beam is opened two seconds, again closed for two seconds, then again judge.
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Cited By (13)
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| CN103895564A (en) * | 2014-04-24 | 2014-07-02 | 上海电机学院 | Car lamp distance and passing light automatic converting device in car meeting at night and method thereof |
| CN104773079A (en) * | 2015-03-26 | 2015-07-15 | 淮南圣丹网络工程技术有限公司 | Automobile distance light blind spot imaging device |
| CN104849026A (en) * | 2015-04-28 | 2015-08-19 | 奇瑞汽车股份有限公司 | Lamp light test bench |
| CN105376497A (en) * | 2014-08-13 | 2016-03-02 | 现代摩比斯株式会社 | Light source recognition system of vehicle |
| CN105774634A (en) * | 2016-03-08 | 2016-07-20 | 江苏云意电气股份有限公司 | New energy automobile high beam prevention device |
| CN105799574A (en) * | 2016-05-31 | 2016-07-27 | 常州星宇车灯股份有限公司 | Intelligent night driver-assistance system |
| CN106740834A (en) * | 2015-11-24 | 2017-05-31 | 中国移动通信集团公司 | A kind of method and device of auxiliary vehicle meeting |
| CN107226026A (en) * | 2016-03-23 | 2017-10-03 | 常州星宇车灯股份有限公司 | Near Infrared CCD night vision auxiliary lighting system based on DSP |
| CN108016346A (en) * | 2016-10-31 | 2018-05-11 | 法乐第(北京)网络科技有限公司 | Safety meeting method and apparatus, automobile data recorder |
| CN109109747A (en) * | 2018-09-04 | 2019-01-01 | 湘潭大学 | A kind of harm of anti-night high beam and expanding function system based on certain single-chip microcontroller |
| CN109263538A (en) * | 2018-08-02 | 2019-01-25 | 惠州市德赛西威汽车电子股份有限公司 | It is a kind of can intelligent recognition close high beam preceding viewing system and control method |
| CN110001508A (en) * | 2019-04-25 | 2019-07-12 | 北京首汽智行科技有限公司 | A kind of dazzle light automatic regulating system |
| CN111806232A (en) * | 2020-07-23 | 2020-10-23 | 南京恒天领锐汽车有限公司 | Strategy and system for preventing instantaneous blindness of driver in driving process |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103895564B (en) * | 2014-04-24 | 2015-11-18 | 上海电机学院 | Car light distance-light automatic exchanger and method thereof during nighttime meeting |
| CN103895564A (en) * | 2014-04-24 | 2014-07-02 | 上海电机学院 | Car lamp distance and passing light automatic converting device in car meeting at night and method thereof |
| CN105376497A (en) * | 2014-08-13 | 2016-03-02 | 现代摩比斯株式会社 | Light source recognition system of vehicle |
| CN104773079A (en) * | 2015-03-26 | 2015-07-15 | 淮南圣丹网络工程技术有限公司 | Automobile distance light blind spot imaging device |
| CN104849026B (en) * | 2015-04-28 | 2018-07-06 | 奇瑞汽车股份有限公司 | A kind of light testboard bay |
| CN104849026A (en) * | 2015-04-28 | 2015-08-19 | 奇瑞汽车股份有限公司 | Lamp light test bench |
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| CN106740834A (en) * | 2015-11-24 | 2017-05-31 | 中国移动通信集团公司 | A kind of method and device of auxiliary vehicle meeting |
| CN105774634A (en) * | 2016-03-08 | 2016-07-20 | 江苏云意电气股份有限公司 | New energy automobile high beam prevention device |
| CN107226026A (en) * | 2016-03-23 | 2017-10-03 | 常州星宇车灯股份有限公司 | Near Infrared CCD night vision auxiliary lighting system based on DSP |
| CN105799574B (en) * | 2016-05-31 | 2018-08-21 | 常州星宇车灯股份有限公司 | Night intelligence DAS (Driver Assistant System) |
| CN105799574A (en) * | 2016-05-31 | 2016-07-27 | 常州星宇车灯股份有限公司 | Intelligent night driver-assistance system |
| CN108016346A (en) * | 2016-10-31 | 2018-05-11 | 法乐第(北京)网络科技有限公司 | Safety meeting method and apparatus, automobile data recorder |
| CN109263538A (en) * | 2018-08-02 | 2019-01-25 | 惠州市德赛西威汽车电子股份有限公司 | It is a kind of can intelligent recognition close high beam preceding viewing system and control method |
| CN109109747A (en) * | 2018-09-04 | 2019-01-01 | 湘潭大学 | A kind of harm of anti-night high beam and expanding function system based on certain single-chip microcontroller |
| CN110001508A (en) * | 2019-04-25 | 2019-07-12 | 北京首汽智行科技有限公司 | A kind of dazzle light automatic regulating system |
| CN111806232A (en) * | 2020-07-23 | 2020-10-23 | 南京恒天领锐汽车有限公司 | Strategy and system for preventing instantaneous blindness of driver in driving process |
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