CN104442554A - Automobile dead zone detection and safety travelling method and system - Google Patents
Automobile dead zone detection and safety travelling method and system Download PDFInfo
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- CN104442554A CN104442554A CN201410579717.6A CN201410579717A CN104442554A CN 104442554 A CN104442554 A CN 104442554A CN 201410579717 A CN201410579717 A CN 201410579717A CN 104442554 A CN104442554 A CN 104442554A
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Abstract
The invention provides an automobile dead zone detection and safety travelling method. Front oblique columns, namely columns A on the left side and the right side of a front windshield are each provided with a set of ultrasonic sensors with the detection angle linearly covering more than 180 degrees of the automobile side, the detection distance of each ultrasonic sensor is larger than 5 m, the shortest distance, between an automobile body and a surrounding obstacle, detected by one set of ultrasonic sensors for detecting regions in different directions serves as the final distance between the automobile body and the obstacle, the final distance is compared with the safety travelling distance of an automobile at different speeds per hour, when the final distance between the automobile body and the obstacle exceeds the safety travelling distance, the automobile can travel continuously, when the final distance between the automobile body and the obstacle is smaller than or equal to the safety travelling distance, an early warning device in the automobile is started, and an alarm lamp flashes when the automobile travels forwards and backwards and is braked. According to the method, potential driving safety hazards caused by sight dead zones of the front oblique columns A on the left side and the right side of the front windshield and front and back door columns B to a driver can be effectively avoided, and the method is simple, rapid and effective.
Description
Technical field
The invention belongs to automotive safety field of traffic, particularly a kind of for the front windshield left and right sides tiltedly before the detection of obstacles of A post and front/rear door B post sight line blind area and safety traffic method and system.
Background technology
Chaufeur when driving, has the traffic information of 80% to be obtained by vision, and good driver's seat is the necessary condition ensureing active safety.There are three columns the every side of general auto body, and wherein front windshield both sides batter post is " A post ", and the column of front/rear door is " B post ", and rear seat windscreen both sides batter post is " C post ".These pillars can allow chaufeur produce blind area, but the most obvious with " A post ".Due to China's vehicle steering be positioned at left side, whenever automobile turning or before entering bend, driver's seat all can by " A post " partial occlusion, especially during turnon left, driver's seat blind area reaches 0.88 meter, is referred to as " life blind area ", easily causes unexpected traffic accidents.In addition, due to A column blocking pilot's line of vision, chaufeur needs the traffic of often rotating eyes and cephalic inspection chaufeur side, easily causes fatigue, unfavorable to safe driving.And the blind area of B post is mainly on the right side of vehicle, when vehicle under steam, when needing wide-angle to turn outside, B post can block sight line, the collision happens likely normally travelled with right side.
The present invention is based on above-mentioned analysis, be intended to propose a kind of detection of obstacles for automobile A, B post sight line blind area and safety traffic method, reduce the generation of traffic accidents.
Summary of the invention
Object of the present invention, provides a kind of vehicle blind zone to detect and safety traffic method and system, its to can be in automobile under low speed advance, turn, the operation such as lane change and parking, detection of obstacles and running method in blind area are safely and effectively provided.
In order to reach above-mentioned purpose, solution of the present invention is:
A kind of vehicle blind zone is detected and safety traffic method, the oblique front pillar in the front windshield left and right sides and A post are installed respectively more than 180 degree, detection angle covering car side straight line one group of ultrasonic transduter, the detecting distance of every ultrasonic transduter is greater than 5 meters, the ultrasonic transduter one group being detected different directions region detects the final distance of closest range as vehicle body distance obstacle of peripheral obstacle, compare from the safety traffic distance of automobile under different speed per hour, when vehicle body exceedes safety traffic distance apart from the final distance of obstacle, this car can continue to exercise, when the final distance of vehicle body distance obstacle is less than or equal to safety traffic distance, in car, prior-warning device starts, locked bearing circle when turning or lane change, advance, reversing and the flicker of brake Times warning lamp.
Obstruction warning function when the present invention has a reversing simultaneously.
The present invention is in order to solve the problems of the technologies described above by the following technical solutions: the present invention devises a kind of vehicle blind zone and detects and safety traffic method, ultrasonic transduter adopts SRF10 type ultrasonic transduter, the probing wave beam angle of each ultrasonic transduter is 72 °, investigative range 6m.Three SRF10 type ultrasonic transduters combine the obstacle that can detect within the scope of 216 °, vehicle body side.SRF10 type ultrasonic transduter (S1) is for detecting from the tailstock to the obstacle within the scope of 72 °, car side, SRF10 type ultrasonic transduter (S2) is for detecting the obstacle offset from ultrasonic transduter (S1) detection range tail end within the scope of 72 °, and SRF10 type ultrasonic transduter (S3) is for detecting the obstacle offset from ultrasonic transduter (S2) detection range tail end within the scope of 72 °.
If adjacent sensors has intersection investigative range, be as the criterion with the shortest distance detecting obstacle.The effective detection range of SRF10 type ultrasonic transduter, more than 6 meters, also can as adopted SRF8 type sensor.Its nominal parameters is as the same.
The present invention is in order to solve the problems of the technologies described above by the following technical solutions: the present invention devises a kind of vehicle blind zone and detects and safety traffic method, and as automobile speed per hour≤30km/h, safe separation distance is 6m; As automobile speed per hour≤20km/h, safe separation distance is 3m; As automobile speed per hour≤10km/h, safe separation distance is 1m.The present invention devises a kind of vehicle blind zone and detects and safety traffic system, the current vehicle speed received is calculated the safe separation distance under this speed of a motor vehicle by microprocessor, can continue to exercise with this car when vehicle body exceedes safety traffic distance apart from the final distance of obstacle, when the final distance of vehicle body distance obstacle is less than or equal to safety traffic distance, in car, prior-warning device starts, locked bearing circle when turning or lane change, advances, moves backward and the flicker of brake Times warning lamp.
Vehicle blind zone of the present invention is detected and safety traffic system, comprises ultrasonic transduter group unit, speed data collection unit, microprocessor unit and alarm unit; Described ultrasonic transduter group unit is described above; The incoming signal of speed data collection unit connects the tachogen of automobile, and ultrasonic transduter group cell signal connects the input end of microprocessor unit, and microprocessor unit exports unit taking alarm.
Further, be provided with the locked unit of bearing circle, microprocessor unit exports and connects the locked unit of bearing circle.
Such as SRF10 type ultrasonic transduter then comprises three ultrasonic transduters detecting forward region, backward region and left-hand/dextrad region respectively, be installed on side by side the shield glass left and right sides tiltedly before on A post; Described speed data collection unit is used for obtaining current vehicle speed; Described microprocessor unit be used for ultrasonic transduter group unit inspection to range information process, and the safety distance under calculating current vehicle speed, by ultrasonic transduter group unit inspection to range information and the current vehicle speed safety distance of calculating compare, draw safety traffic controling parameters.
Described alarm unit is used for reminding the danger in distance situation non-security when advancing, move backward and brake controlling.
Electric booster system according to vehicle steering can the locked unit of setting direction dish.The locked unit of described bearing circle is used for reminding the danger in turning, lane change non-security distance situation controlling or action.
A kind of vehicle blind zone of the present invention detects and safety traffic method adopts above technical scheme compared with prior art, has following beneficial effect:
(1) vehicle blind zone of the present invention's design is detected and in safety traffic method and driving system, utilize one of different directions group of ultrasonic transduter can detect the object of vehicle window side (car side) 216 degree of scopes by the present invention's design, and detect the shortest distance of object in overlapping region with adjacent ultrasonic wave sensor and be as the criterion, safety traffic rate can be improved;
(2) vehicle blind zone of the present invention's design is detected and in safety traffic method, is determined the safe separation distance under the different speed of a motor vehicle, have more practicality according to vehicle friction speed, and method is simple, quick.And also have obstruction warning function during reversing.
Accompanying drawing explanation
Fig. 1 is that vehicle blind zone of the present invention is detected and safety traffic method overview flow chart;
Fig. 2 is ultrasonic transduter component Butut.
Fig. 3 is that vehicle blind zone is detected and safety traffic system construction drawing.
Detailed description of the invention
Below with reference to accompanying drawing, technical scheme of the present invention is described in detail.
The oblique front pillar in the front windshield left and right sides installs forward region respectively, backward region and left-hand/three, dextrad region ultrasonic transduter, the ultrasonic transduter three being detected different directions region detects the final distance of closest range as vehicle body distance obstacle of peripheral obstacle, compare from the safety traffic distance of automobile under different speed per hour, when vehicle body exceedes safety traffic distance apart from the final distance of obstacle, this car can continue to exercise, when the final distance of vehicle body distance obstacle is less than or equal to safety traffic distance, in car, prior-warning device starts, locked bearing circle when turning or lane change, advance, reversing and the flicker of brake Times warning lamp.
The present invention is in order to solve the problems of the technologies described above by the following technical solutions: the present invention devises a kind of vehicle blind zone and detects and safety traffic method, ultrasonic transduter adopts SRF10 type ultrasonic transduter, the probing wave beam angle of each ultrasonic transduter is 72 °, investigative range 6m.Three SRF10 type ultrasonic transduters combine the obstacle that can detect within the scope of vehicle body side.SRF10 type ultrasonic transduter (S1) is for detecting from the tailstock to the obstacle within the scope of car predecessor 72 °, SRF10 type ultrasonic transduter (S2) is for detecting the obstacle from ultrasonic transduter (S1) detection range tail end forward within the scope of 72 °, and SRF10 type ultrasonic transduter (S3) is for detecting from ultrasonic transduter (S2) detection range tail end the obstacle forward within the scope of 72 °.Adjacent sensors is intersected in investigative range, is as the criterion with the shortest distance detected.
The present invention is in order to solve the problems of the technologies described above by the following technical solutions: the present invention devises a kind of vehicle blind zone and detects and safety traffic method, and as automobile speed per hour≤30km/h, safe separation distance is 6m; As automobile speed per hour≤20km/h, safe separation distance is 3m; As automobile speed per hour≤10km/h, safe separation distance is 1m.
The invention provides a kind of vehicle blind zone to detect and safety traffic method, its main thought as shown in Figure 1, the oblique front pillar in the front windshield left and right sides installs forward region respectively, backward region and left-hand/three, dextrad region ultrasonic transduter, the ultrasonic transduter three being detected different directions region detects the final distance of closest range as vehicle body distance obstacle of peripheral obstacle, compare from the safety traffic distance of automobile under different speed per hour, when vehicle body exceedes safety traffic distance apart from the final distance of obstacle, this car can continue to exercise, when the final distance of vehicle body distance obstacle is less than or equal to safety traffic distance, in car, prior-warning device starts, locked bearing circle when turning or lane change, advance, reversing and the flicker of brake Times warning lamp.
Ultrasonic transduter component Butut as shown in Figure 2, SRF10 type ultrasonic transduter (S1) is for detecting from the tailstock to the obstacle within the scope of car predecessor 72 °, SRF10 type ultrasonic transduter (S2) is for detecting the obstacle from ultrasonic transduter (S1) detection range tail end forward within the scope of 72 °, and SRF10 type ultrasonic transduter (S3) is for detecting from ultrasonic transduter (S2) detection range tail end the obstacle forward within the scope of 72 °.Adjacent sensors is intersected in investigative range, is as the criterion with the shortest distance detected.
The invention provides a kind of vehicle blind zone to detect and safety traffic system, as shown in Figure 3, comprise ultrasonic transduter group unit, speed data collection unit, microprocessor unit, the locked unit of bearing circle and alarm unit.Described ultrasonic transduter group unit comprises three ultrasonic transduters detecting forward region, backward region and left-hand/dextrad region respectively, be installed on side by side the shield glass left and right sides tiltedly before on A post.Described speed data collection unit is used for obtaining current vehicle speed.Described microprocessor unit be used for ultrasonic transduter group unit inspection to range information process, and the safety distance under calculating current vehicle speed, by ultrasonic transduter group unit inspection to range information and the current vehicle speed safety distance of calculating compare, draw safety traffic control method.The locked unit of described bearing circle is used for reminding the danger in turning, lane change non-security distance situation controlling.Described alarm unit is used for reminding the danger in distance situation non-security when advancing, move backward and brake controlling.
As shown in Figure 3, the current vehicle speed received is calculated the safe separation distance under this speed of a motor vehicle by microprocessor, can continue to exercise with this car when vehicle body exceedes safety traffic distance apart from the final distance of obstacle, when the final distance of vehicle body distance obstacle is less than or equal to safety traffic distance, in car, prior-warning device starts, locked bearing circle when turning or lane change, advances, moves backward and the flicker of brake Times warning lamp.Wherein, as automobile speed per hour≤30km/h, safe separation distance is 6m; As automobile speed per hour≤20km/h, safe separation distance is 3m; As automobile speed per hour≤10km/h, safe separation distance is 1m.
To sum up, by set up and implement the present invention design vehicle blind zone detect and safety traffic system, the object in the sight line blind area of automobile A, B post effectively can not only be detected, the object of the 216 degree of scopes in vehicle body side can also be detected, and the active distance detecting object can be judged, the safety traffic distance according to current vehicle speed makes correct mobility operation.System architecture is simple, cost is low, algorithm is quick effectively, practicality is high, has wide market application foreground and economic value.
Above embodiment is only and technological thought of the present invention is described, can not limit protection scope of the present invention with this, and every technological thought proposed according to the present invention, any change that technical scheme basis is done, all falls within scope.To sum up, by set up and implement the present invention design vehicle blind zone detect and safety traffic method, the object in the sight line blind area of automobile A, B post effectively can not only be detected, the object of the 216 degree of scopes in vehicle body side can also be detected, and the active distance detecting object can be judged, the safety traffic distance according to current vehicle speed makes correct mobility operation.Method is quick effectively, practicality is high, has wide market application foreground and economic value.
Above embodiment is only and technological thought of the present invention is described, can not limit protection scope of the present invention with this, and every technological thought proposed according to the present invention, any change that technical scheme basis is done, all falls within scope.
Claims (7)
1. a vehicle blind zone is detected and safety traffic method, it is characterized in that installing respectively on the oblique front pillar in the front windshield left and right sides and A post more than 180 degree, detection angle covering car side straight line one group of ultrasonic transduter, the detecting distance of every ultrasonic transduter is greater than 5 meters, the ultrasonic transduter one group being detected different directions region detects the final distance of closest range as vehicle body distance obstacle of peripheral obstacle, compare from the safety traffic distance of automobile under different speed per hour, when vehicle body exceedes safety traffic distance apart from the final distance of obstacle, this car can continue to exercise, when the final distance of vehicle body distance obstacle is less than or equal to safety traffic distance, in car, prior-warning device starts, advance, reversing and the flicker of brake Times warning lamp.
2. vehicle blind zone according to claim 1 is detected and safety traffic method, it is characterized in that turning or lane change time locked bearing circle.
3. vehicle blind zone according to claim 1 and 2 is detected and safety traffic method, it is characterized in that ultrasonic transduter adopts SRF10 type ultrasonic transduter, the probing wave beam angle of each ultrasonic transduter is 72 °, and three SRF10 type ultrasonic transduters combine the obstacle namely detected within the scope of 216 °, vehicle body side; SRF10 type ultrasonic transduter (S1) is for detecting from the tailstock to the obstacle within the scope of 72 °, car side, SRF10 type ultrasonic transduter (S2) is for detecting the obstacle offset from ultrasonic transduter (S1) detection range tail end within the scope of 72 °, and SRF10 type ultrasonic transduter (S3) is for detecting the obstacle offset from ultrasonic transduter (S2) detection range tail end within the scope of 72 °.
4. vehicle blind zone according to claim 3 is detected and safety traffic method, it is characterized in that, if adjacent sensors has intersection investigative range, being as the criterion with the shortest distance detecting obstacle.
5. vehicle blind zone according to claim 3 is detected and safety traffic method, it is characterized in that safe separation distance is 6m as automobile speed per hour≤30km/h; As automobile speed per hour≤20km/h, safe separation distance is 3m; As automobile speed per hour≤10km/h, safe separation distance is 1m; The current vehicle speed received is calculated the safe separation distance under this speed of a motor vehicle by microprocessor, can continue to exercise with this car when vehicle body exceedes safety traffic distance apart from the final distance of obstacle, when the final distance of vehicle body distance obstacle is less than or equal to safety traffic distance, in car, prior-warning device starts, locked bearing circle when turning or lane change, advances, moves backward and the flicker of brake Times warning lamp.
6. detect and safety traffic system according to the vehicle blind zone one of claim 1-5 Suo Shu, it is characterized in that comprising ultrasonic transduter group unit, speed data collection unit, microprocessor unit and alarm unit; Described ultrasonic transduter group unit is described above; The incoming signal of speed data collection unit connects the tachogen of automobile, and ultrasonic transduter group cell signal connects the input end of microprocessor unit, and microprocessor unit exports unit taking alarm.
7. vehicle blind zone according to claim 6 is detected and safety traffic system, it is characterized in that being provided with the locked unit of bearing circle, and microprocessor unit exports and connects the locked unit of bearing circle.
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| CN201410579717.6A CN104442554A (en) | 2014-10-24 | 2014-10-24 | Automobile dead zone detection and safety travelling method and system |
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| CN105301596A (en) * | 2015-11-13 | 2016-02-03 | 国网湖北省电力公司检修公司 | Distance measuring and alarming method for potential approaching work of crane lifting car |
| CN106394397A (en) * | 2016-10-21 | 2017-02-15 | 奇瑞汽车股份有限公司 | Reversing double flashing light control system and control method thereof |
| CN107140021A (en) * | 2017-03-31 | 2017-09-08 | 深圳市元征科技股份有限公司 | Intelligent control method and device based on vehicle blind spot |
| CN107826106A (en) * | 2017-11-21 | 2018-03-23 | 吉利汽车研究院（宁波）有限公司 | A kind of vehicle blind zone detection method of controlling security and control system |
| CN107985189A (en) * | 2017-10-26 | 2018-05-04 | 西安科技大学 | Towards driver's lane change Deep Early Warning method under scorch environment |
| CN108638966A (en) * | 2018-06-11 | 2018-10-12 | 南宁学院 | A kind of automobile assistant driving system and auxiliary driving method based on blind area monitoring |
| CN108845327A (en) * | 2018-08-13 | 2018-11-20 | 河南城建学院 | A kind of intelligent measurement and system for prompting of truck blind area barrier |
| CN109501798A (en) * | 2017-09-14 | 2019-03-22 | 本田技研工业株式会社 | Travel controlling system and travel control method |
| CN110621550A (en) * | 2017-05-25 | 2019-12-27 | 日产自动车株式会社 | Parking control method and parking control device |
| CN110877609A (en) * | 2018-09-06 | 2020-03-13 | 现代自动车株式会社 | Vehicle travel control apparatus and vehicle travel control method |
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| CN105301596A (en) * | 2015-11-13 | 2016-02-03 | 国网湖北省电力公司检修公司 | Distance measuring and alarming method for potential approaching work of crane lifting car |
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| CN108845327A (en) * | 2018-08-13 | 2018-11-20 | 河南城建学院 | A kind of intelligent measurement and system for prompting of truck blind area barrier |
| CN110877609A (en) * | 2018-09-06 | 2020-03-13 | 现代自动车株式会社 | Vehicle travel control apparatus and vehicle travel control method |
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