CN103112352A - Driving assistance system based on head slant monitoring - Google Patents
Driving assistance system based on head slant monitoring Download PDFInfo
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- CN103112352A CN103112352A CN201210104816XA CN201210104816A CN103112352A CN 103112352 A CN103112352 A CN 103112352A CN 201210104816X A CN201210104816X A CN 201210104816XA CN 201210104816 A CN201210104816 A CN 201210104816A CN 103112352 A CN103112352 A CN 103112352A
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Abstract
The invention aims at providing a driving assistance system based on head slant monitoring. A processor receives a vehicle start signal or a steering signal or a back up signal, receives a head video signal of a driver through a video collector and judges whether the driver is in a state of returning the slant head. When the slant head which needs to return does not return, the processor controls an alerter to alarm, receives a vehicle straight running signal, receives the head video signal of the driver through the video collector and judges whether continuous head slant time of the driver exceeds a preset time. When the continuous head slant time of the driver exceeds the preset time, the processor controls the alerter to alarm.
Description
Technical field
The invention belongs to and drive auxiliary field, be specifically related to a kind of drive assist system based on the driver status monitoring.
Background technology
Since entering 21st century, China's vehicle guaranteeding organic quantity increases sharply, and traffic accident quantity is high.Statistics shows, the carelessness of chaufeur and bad steering custom are the major reasons that causes traffic accident.Therefore, early warning and prompting are carried out in the driving behavior of chaufeur, will be conducive to improve the chaufeur attainment, reduce the traffic accident that causes because of the improper operation of chaufeur.At present, driving auxiliary field, research and application to the chaufeur driving condition supervision, mainly concentrate in fatigue driving, and also fewer for the monitoring of driving behavior especially driving habit and prompting, do not reduce chaufeur by the monitoring to inclined to one side behavior of chaufeur with prompting and be accustomed to causing the scheme of accident because of carelessness or bad steering.
Summary of the invention
The object of the invention is to provide a kind of vehicle under the state of starting to walk, moveing backward, park, turn, changing, the system that inclined to one side behavior monitored to chaufeur, and point out and carry out head action partially under the state of starting to walk, moveing backward, park, turn, change; Vehicle is monitored and is pointed out the long-term head partially of chaufeur under the craspedodrome state.
a kind of drive assist system based on inclined to one side head monitoring disclosed by the invention, comprise treater, video collector, annunciator, described treater receives vehicle start signal or turn sign or astern signal, described treater receives chaufeur head vision signal by video collector, and judge whether chaufeur is in the rear positive status that returns of inclined to one side head, it is characterized in that: constantly play to monitor in preheating setting time to the last period to return positive status after whether chaufeur exists inclined to one side head when treater receives vehicle start signal or turn sign or astern signal, when returning positive status without head is rear partially, treater judgement chaufeur vehicle start turn to or move backward before check the driving environment action without head partially, control alarm equipment alarm.
Further, treater returns positive status and is completed by following steps after receiving vehicle start signal or turn sign or astern signal whether the inquiry chaufeur exists inclined to one side head in the last period first preheating setting time constantly:
1) the first time meter is set in treater, after vehicle launch, the first time meter begins timing take preheating setting time as radix; After time meter was full, certainly preparing setting-up time was that radix is from new timing;
2) treater monitors when inclined to one side head is rear returns positive status, and the first time meter is set up the timing of starting from scratch;
3) treater monitors vehicle start signal or turn sign or astern signal constantly, consults the timing number of the first time meter;
The timing number surpasses preheating setting time, and expression monitors vehicle start signal or turn sign or the interior nothing of preheating setting time the last period first in the astern signal moment rear time positive status of head partially; The timing number surpasses preheating setting time, and expression monitors vehicle start signal or turn sign or the last period first in the astern signal moment and has the rear positive status that returns of head partially in preheating setting time;
Further, the first preheating setting time is 4 seconds;
Further, the second time meter is set in treater, described treater receives chaufeur head vision signal by video collector, and judging whether chaufeur is in inclined to one side head status, head status begins partially, the timing from zero of the second time meter, occur partially returning positive status after head, the second time meter is cleared; Treater also receives vehicle craspedodrome signal, and constantly rises and call the second time meter counting receiving vehicle craspedodrome signal, and the second time meter counting is greater than the second preheating setting time, and the expression vehicle long-term head partially of lower chaufeur of keeping straight on is controlled alarm equipment alarm;
Further, the second preheating setting time is 3 seconds.
Beneficial effect of the present invention is: treater is monitor vehicle motoring condition and head status partially simultaneously,, confirms whether chaufeur carried out partially head and just returned, and then guarantees driving safety in starting or turn to or in short period the last period of moveing backward by vehicle; When vehicle is kept straight on, confirm whether chaufeur exists inclined to one side behavior, and remind when long-term inclined to one side of chaufeur and watch the place ahead attentively.
Description of drawings
Fig. 1 is the block diagram of system of the present invention.
Fig. 2 is control logic figure of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, to principle of the present invention and the detailed explanation of practical application.
Fig. 1 is the block diagram of system of the present invention, in the present invention, treater 1 receives the head vision signal that gathers from the starting signal in the CAN bus, turn sign, astern signal, craspedodrome signal and video collector 2, annunciator 3 is accepted treater 1 and is controlled, and memory device 4 is used for storing audio, provides buffer memory for treater 1.Treater 1 utilizes the motoring condition of starting signal, turn sign, astern signal, craspedodrome signal judgement vehicle.Video collector 2 gathers chaufeur head vision signal, and send treater 1 to, treater 1 utilizes these vision signals to carry out head identification partially to chaufeur, change under state or reversing state at starting state or turning, chaufeur is not just returning after head within the default time partially, and treater 1 is controlled annunciator 3 and reported to the police, under the craspedodrome state, inclined to one side time of chaufeur surpasses Preset Time, controls annunciator 3 and reports to the police.
Partially head refers to that chaufeur passes through head deflection or pupil deflection, observes the action of back mirror or left and right vehicle wheel both sides running environment.
Concrete control logic as shown in Figure 2, system opens, video collector 2 gathers the head vision signal of chaufeurs, and passes to treater 1,1 pair of chaufeur head vision signal of treater is carried out real-time inclined to one side head identification; An identification minute two states in inclined to one side process: just begin partially head and positive drive is not arranged back as head status partially, partially beginning back after head be just inclined to one side rear time positive status; Treater 1 monitors and returns positive status after inclined to one side head and represent head and will face the place ahead partially of chaufeur, and vehicle is in starting or turn to or carves more in short-term the last period of moveing backward and need chaufeur to have inclined to one side head to move observation rear or both sides road conditions, the guarantee driving safety; When vehicle is kept straight on, need chaufeur to keep substantially facing the place ahead, therefore treater 1 monitors the long-term head status partially of chaufeur and do not return timing, alerting driver to note facing the place ahead.
System arranges the first time meter 5, and during vehicle launch, the first time meter 5 initialization values are 4 seconds, and since timing in 4 seconds, and when the first time meter 5 timing reach the upper limit, timing is again since 4 seconds; If treater 1 identifies the inclined to one side head of chaufeur, partially return a timing time meter 5 after head until chaufeur and begin from 0 timing, partially just returning after head again if identify chaufeur, the first time meter 5 is again from 0 timing.
System arranges the second time meter 6, after vehicle launch, begins inclined to one side head if treater 1 identifies chaufeur, and the second time meter 6 begins from 0 timing, partially returns the zero clearing of timing time meter after head until chaufeur.
System carries out Real-Time Monitoring to vehicle running state, is in which kind of motoring condition according to the signal judgement vehicle of collecting:
The starting state be vehicle by static process to advancing, treater 1 receives the starting signal, and makes starting judgement; The starting signal comprises forward gear signal, speed signal; Treater 1 receives the forward gear signal, and speed signal is effective by invalid change, is judged as starting; Occur during vehicle start turning to, this state still is starting;
During vehicle start, treater 1 calls the first time meter 5, if the first time meter 5 timing less than or equal to 4 seconds, illustrate from vehicle start constantly forward in 4 seconds, chaufeur is just returning after head partially, system jumps out the starting program, reenters the vehicle-state monitoring modular; If time meter 5 timing were greater than 4 seconds, vehicle start constantly rises and returns direct action after in 4 seconds, chaufeur has inclined to one side forward, and treater 1 sends warning by annunciator 3, and system jumps out the starting program afterwards, reenters the vehicle-state monitoring modular.
It is that vehicle treater 1 when moving ahead receives turn sign that state is changed in turning, and makes and turn to judgement; Turn sign comprises steering indicating light signal, forward gear signal, speed signal; Forward gear signal, steering indicating light signal and speed signal are effective simultaneously, and treater 1 this state of judgement changes state for turning;
Vehicle begins to turn or change, and treater 1 receives turn sign, and calls the first time meter 5, the first time meter 5 timing less than or equal to 4 seconds, and the expression chaufeur is just returning after in 4 seconds, inclined to one side head being arranged turning to constantly to rise forward; The first time meter 5 counting is greater than 4 seconds, and the expression chaufeur is just returning after head partially turning to constantly to rise forward in 4 seconds, controls annunciator 3 and reports to the police, and the prompting chaufeur is observed surrounding road condition; Turn sign disappears, and the state that changes of turning finishes, and system jumps out to turn and changes program, reenters the vehicle-state monitoring modular.
The reversing state is that finger processor 1 receives astern signal, and makes the reversing judgement; Astern signal refers to the signal that reverses gear; Astern signal is effective, is judged as reversing.
Vehicle begins reversing or parks, and treater 1 receives astern signal, and calls the first time meter 5, the first time meters 5 countings less than or equal to 4 seconds, and the expression chaufeur returns positive status after in reversing rose forward 4 seconds constantly, inclined to one side head being arranged; The first time meter 5 countings were greater than 4 seconds, the expression chaufeur is just returning after head in reversing constantly rose forward 4 seconds partially, controlling annunciator 3 reports to the police, the prompting chaufeur is observed the surrounding road environmental aspect, astern signal disappears, turning is changed state and is finished, and system jumps out the reversing program, reenters the vehicle-state monitoring modular.
The craspedodrome state is that vehicle moves ahead along the track, and without turning to or changing, the craspedodrome signal comprises forward gear signal and speed signal; When treater 1 receives forward gear signal and speed signal simultaneously, judge that this state is the craspedodrome state; Vehicle moves ahead along bend, but does not send turn sign, and this state also belongs to the craspedodrome state;
Vehicle is in the craspedodrome state, and treater 1 receives the craspedodrome signal, and calls the second time meter 6, the second time meter 6 countings greater than 3 seconds, the long-term head partially of expression chaufeur, dispersion attention is controlled alarm equipment alarm, the prompting chaufeur is attentively driven, and the chaufeur head just returns, and reports to the police and finishes.
Above-mentioned speed signal refers to that effectively it is not 0 that speed sensor monitors car speed, otherwise is that speed signal is invalid.
Starting state, the switching change between state, reversing state and craspedodrome state of turning determine by incoming signal, and for example, vehicle is under the starting state, treater 1 receives turn sign, vehicle-state jumps to turn and changes state, and turn sign disappears, and vehicle-state is got back to again the craspedodrome state; After vehicle start, vehicle-state is from the starting state transition to the craspedodrome state.
The described vehicle start state of this patent, turning are changed state, reversing state and craspedodrome state and can only independently be existed.
Claims (5)
1. the drive assist system of monitoring based on inclined to one side head, comprise treater (1), video collector (2), annunciator (3), described treater (1) receives vehicle start signal or turn sign or astern signal, described treater (1) receives chaufeur head vision signal by video collector (2), and judge whether chaufeur is in the rear positive status that returns of inclined to one side head, it is characterized in that: constantly play to monitor in preheating setting time to the last period to return positive status after whether chaufeur exists inclined to one side head when treater (1) receives vehicle start signal or turn sign or astern signal, when returning positive status without head is rear partially, treater (1) judgement chaufeur vehicle start turn to or move backward before check the driving environment action without head partially, controlling annunciator (3) reports to the police.
2. the drive assist system based on inclined to one side head monitoring as claimed in claim 1 is characterized in that: treater (1) returns positive status and is completed by following steps after receiving vehicle start signal or turn sign or astern signal whether the inquiry chaufeur exists inclined to one side head in the last period first preheating setting time constantly:
1) in treater (1), the first time meter (5) is set, after vehicle launch, the first time meter (5) begins timing take preheating setting time as radix; After time meter was full, certainly preparing setting-up time was that radix is from new timing;
2) treater (1) monitors when inclined to one side head is rear returns positive status, and the first time meter (5) is set up the timing of starting from scratch;
3) treater (1) monitors vehicle start signal or turn sign or astern signal constantly, consults the timing number of the first time meter (5);
The timing number surpasses preheating setting time, and expression monitors vehicle start signal or turn sign or the interior nothing of preheating setting time the last period first in the astern signal moment rear time positive status of head partially; The timing number surpasses preheating setting time, and expression monitors vehicle start signal or turn sign or the last period first in the astern signal moment and has the rear positive status that returns of head partially in preheating setting time.
3. as claimed in claim 1 based on inclined to one side drive assist system of monitoring, it is characterized in that: the first preheating setting time is 4 seconds.
4. as claimed in claim 1 based on inclined to one side drive assist system of monitoring, it is characterized in that: the second time meter (6) is set in treater (1), described treater (1) receives chaufeur head vision signal by video collector (2), and judge whether chaufeur is in inclined to one side head status, head status begins partially, the second time meter (6) timing from zero occurs partially returning positive status after head, and the second time meter (6) is cleared; Treater (1) also receives vehicle craspedodrome signal, and constantly rise and call the second time meter (6) counting receiving vehicle craspedodrome signal, the second time meter (6) counting is greater than the second preheating setting time, and under the expression vehicle is kept straight on, the long-term head partially of chaufeur, control annunciator (3) and report to the police.
5. as claimed in claim 4 based on inclined to one side drive assist system of monitoring, it is characterized in that: the second preheating setting time is 3 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210104816.XA CN103112352B (en) | 2012-04-12 | 2012-04-12 | Based on the drive assist system of inclined to one side head monitoring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210104816.XA CN103112352B (en) | 2012-04-12 | 2012-04-12 | Based on the drive assist system of inclined to one side head monitoring |
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| CN103112352A true CN103112352A (en) | 2013-05-22 |
| CN103112352B CN103112352B (en) | 2016-05-04 |
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| CN201210104816.XA Active CN103112352B (en) | 2012-04-12 | 2012-04-12 | Based on the drive assist system of inclined to one side head monitoring |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113168757A (en) * | 2018-12-13 | 2021-07-23 | 法国大陆汽车公司 | Method for determining driver alertness |
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| JPH10138791A (en) * | 1996-11-08 | 1998-05-26 | Niles Parts Co Ltd | Device for warning of danger during use of cellular phone |
| JP2004034938A (en) * | 2002-07-08 | 2004-02-05 | Yazaki Corp | Dozing-off drive prevention device and vehicle operation information collection device |
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| KR100921092B1 (en) * | 2008-07-04 | 2009-10-08 | 현대자동차주식회사 | Driver state monitorring system using a camera on a steering wheel |
| DE102010044449A1 (en) * | 2009-12-31 | 2011-07-07 | Volkswagen AG, 38440 | Method for detecting degree of driving ability of driver of motor vehicle, involves detecting head of driver with driver monitoring camera and providing image data of driver head in time sequence |
| CN202130312U (en) * | 2011-07-29 | 2012-02-01 | 四川中唯交通科技有限公司 | Driver fatigue driving monitoring device |
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2012
- 2012-04-12 CN CN201210104816.XA patent/CN103112352B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10138791A (en) * | 1996-11-08 | 1998-05-26 | Niles Parts Co Ltd | Device for warning of danger during use of cellular phone |
| JP2004034938A (en) * | 2002-07-08 | 2004-02-05 | Yazaki Corp | Dozing-off drive prevention device and vehicle operation information collection device |
| KR100857820B1 (en) * | 2007-03-05 | 2008-09-10 | (주)율시스템즈 | Driver driving habit checking system and using method thereof |
| KR100921092B1 (en) * | 2008-07-04 | 2009-10-08 | 현대자동차주식회사 | Driver state monitorring system using a camera on a steering wheel |
| DE102010044449A1 (en) * | 2009-12-31 | 2011-07-07 | Volkswagen AG, 38440 | Method for detecting degree of driving ability of driver of motor vehicle, involves detecting head of driver with driver monitoring camera and providing image data of driver head in time sequence |
| CN202130312U (en) * | 2011-07-29 | 2012-02-01 | 四川中唯交通科技有限公司 | Driver fatigue driving monitoring device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113168757A (en) * | 2018-12-13 | 2021-07-23 | 法国大陆汽车公司 | Method for determining driver alertness |
| US11893807B2 (en) | 2018-12-13 | 2024-02-06 | Continental Automotive France | Method for determining a level of alertness of a driver |
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| CN103112352B (en) | 2016-05-04 |
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