CN103895572B - Vehicle traveling information display unit and method in a kind of field of front vision - Google Patents
Vehicle traveling information display unit and method in a kind of field of front vision Download PDFInfo
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- CN103895572B CN103895572B CN201410162650.6A CN201410162650A CN103895572B CN 103895572 B CN103895572 B CN 103895572B CN 201410162650 A CN201410162650 A CN 201410162650A CN 103895572 B CN103895572 B CN 103895572B
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Abstract
The invention provides vehicle traveling information display unit and method in a kind of field of front vision, belong to automotive field, the problem of the vehicle traveling information of field of front vision cannot be provided and provide to driver for solving existing vehicle, in field of front vision provided by the invention, vehicle traveling information display unit and method are by setting up space coordinates taking any point on car as initial point, by obtaining eyes that driver's eyes present position image the determines driver coordinate in these space coordinates, and also determine the coordinate of front target vehicle in these space coordinates by radar detection, thereby determine driver's eyes and the line of front target vehicle and the intersection point of front windshield, image position using this intersection point as front target vehicle, and show in real time front target vehicle information in this position, make driver can obtain timely and conveniently the speed (or relative velocity) of front vehicles, the information such as distance and expection passing time, improve drive safety.
Description
Technical field
The present invention relates to automotive field, relate in particular in a kind of field of front vision vehicle traveling information display unit andMethod.
Background technology
Along with being on the increase of city vehicle, the incidence of traffic accident is also rising year by year. Current vehicleUpper, driver can only see through windshield glass the wagon flow in front, but cannot obtain intuitively institute in the visual fieldHave vehicle speed (or relative velocity), distance, how long can overtake other vehicles with the relative velocity of two carsEtc. information, therefore cannot adjust in time self drive speed and direction etc. according to these information, fromAnd cause the accidents such as front car rear-end or scratch. Therefore, being badly in need of at present one can make driver know in timeThe technical scheme of all vehicle traveling informations in field of front vision.
Summary of the invention
What the present invention will solve is that existing vehicle cannot obtain and provide the car in field of front vision to driverDriving information, thus make driver cannot be in time self drive speed and direction etc. be adjusted and be heldEasily cause the problem of traffic accident, the invention provides vehicle traveling information display unit in a kind of field of front visionAnd method.
For solving the problems of the technologies described above, embodiments of the invention provide vehicle traveling information in a kind of field of front visionDisplay unit, comprising:
Be affixed on the transparent demonstration film on shield glass;
The first camera and the second camera that are arranged at driver front side in car, be respectively used to aim at driverEyes carry out IMAQ, and the first camera sends to graphics processing unit, second by the first image obtainingThe second image obtaining is sent to graphics processing unit by camera;
The graphics processing unit being connected with described first, second camera, for the treatment of described the first image andThe second image, the eyes session number that obtains the first camera and driver according to this and second camera and driverEyes line Data Concurrent give control module;
Be arranged at the radar on vehicle, measure distance and the angle of front target vehicle and this car and will measure numberAccording to sending to control module;
With described transparent demonstration film, the first camera, second camera, graphics processing unit and radar differenceThe control module of electrical connection, for controlling connected component working, determines front according to the data of receivingThe position of the picture of target vehicle on front windshield, and in this position display of described transparent demonstration film before thisSquare mesh mark vehicle traveling information.
Preferably, described control module is set up space coordinates taking any point in car as initial point in advance, determinesThe surface equation of described front windshield in these space coordinates, and according to the first camera of receiving and drivingThe eyes session number of the person of sailing according to this and second camera and driver's eyes line data determine driver's eyeThe coordinate of eyeball in described space coordinates, and determine according to the distance of front target vehicle and this car and angleThe coordinate of front target vehicle in described space coordinates, finally according to described driver's eyes and front square meshCoordinate in the mark each leisure of vehicle described space coordinates and front windshield are in these space coordinatesSurface equation is determined the position of the picture of front target vehicle on front windshield.
Preferably, described the first camera and second camera are arranged on meter panel of motor vehicle.
Preferably, described radar is arranged at vehicle intake grid position.
Preferably, described front target vehicle driving information comprises that control module is according to being somebody's turn to do in certain Measuring TimeRelative position in described space coordinates changes front vehicle speed/relative this car calculating to car with this carSpeed, with this spacing and expection passing time information.
The present invention also provides vehicle traveling information display methods in a kind of field of front vision, comprises the following steps:
Step 1: to set up space coordinates when any point in front truck as initial point, and determine when before vehicle in frontThe surface equation of windshield in these space coordinates;
Step 2: survey and coordinate and the front target of definite driver's eyes in described space coordinatesThe coordinate of vehicle in described space coordinates;
Step 3: the coordinate according to driver's eyes in described space coordinates and front target vehicle are in instituteState the coordinate in space coordinates, calculate driver's eyes and front target vehicle in described space coordinatesLine equation;
Step 4: the line side in described space coordinates according to driver's eyes and front target vehicleJourney, and when the surface equation of vehicle in front front windshield in these space coordinates, determine front target carriageIn the position when picture on vehicle in front front windshield;
Step 5: show in the position of the picture when on vehicle in front front windshield at described front target vehicleFront target vehicle driving information.
Preferably, in described step 2, survey and the seat of definite driver's eyes in described space coordinatesMark, comprising:
Obtain driver's eyes position of living in being arranged at when first, second camera of diverse location in vehicle in frontFirst, second image of putting;
The first image is carried out image processing and is obtained the first camera and driver's eyes line data, toTwo images carry out image processing and obtain second camera and driver's eyes line data;
According to the first camera and driver's eyes session number according to this and second camera and driver eyeEyeball line data, calculate the first camera and driver's eyes line and second camera and driverThe intersecting point coordinate of eyes line in described space coordinates, and using this intersection point as driver's eyes describedCoordinate in space coordinates.
Preferably, in described step 2, survey and the seat of definite front target vehicle in described space coordinatesMark, comprising:
When radar is set in vehicle in front, adopt this radar surveying front target vehicle and this car apart from walk-off angleDegree;
Determine that according to the distance of front target vehicle and this car and angle front target vehicle sits in described spaceCoordinate in mark system.
Preferably, the target vehicle driving information of front described in step 5 comprises: in certain Measuring TimeThe front target vehicle of described radar surveying and this car relative position in described space coordinates changes, meterThis vehicle speed of the front vehicle speed that calculates/relatively, with this spacing and expection passing time information.
Preferably, before described step 5, also comprise step: when arranging on vehicle in front front windshieldTransparent demonstration film;
Described step 5 comprises: described transparent demonstration film, with described front target vehicle working as vehicle in frontIdentical demonstration front, the position target vehicle driving information in position of the picture on front windshield.
The beneficial effect of technique scheme of the present invention is as follows:
In field of front vision provided by the invention, vehicle traveling information display unit and method are by measuring and obtainingThe position coordinates of driver's eyes and front vehicles, calculate driver's eyes see through windshield glass see beforeSide's vehicle is in the position of the picture of windshield glass position, and directly in real time shows front vehicles in this positionSpeed (or relative velocity), distance and how long can overtake other vehicles etc. with the relative velocity of two cars beforeSide's vehicle traveling information, can adjust in time according to these information driver to the driving situation of selfWhole, reduce the incidence of traffic accident, further improve driver's drive safety.
Brief description of the drawings
Vehicle traveling information display device structure in a kind of field of front vision that Fig. 1 provides for the embodiment of the present inventionSchematic diagram;
Vehicle traveling information display methods flow process in a kind of field of front vision that Fig. 2 provides for the embodiment of the present inventionFigure;
Fig. 3 surveys and the flow chart of the coordinate of definite driver's eyes in space coordinates in S2;
Fig. 4 surveys and the flow chart of the coordinate of definite front target vehicle in space coordinates in S2;
[critical piece symbol description]
1, transparent demonstration film;
2, the first camera;
3, second camera;
4, graphics processing unit;
5, radar;
6, control module.
Detailed description of the invention
For making the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with attachedFigure and specific embodiment are described in detail.
Be illustrated in figure 1 vehicle traveling information in a kind of field of front vision that the embodiment of the present invention provides and show dressInterposed structure schematic diagram, as shown in FIG., this device comprises: transparent demonstration film 1, the first camera 2,Two cameras 3, graphics processing unit 4, radar 5 and control module 6. Control module 6 is respectively with transparentShow that film 1, the first camera 2, second camera 3, graphics processing unit 4, radar 5 connect, firstCamera 2, second camera 3 and control module 6 graphics processing units 4 are connected.
Transparent demonstration film 1 is affixed on shield glass.
The first camera 2 and second camera 3 are arranged at the interior driver of car front side, are respectively used to aim at and driveThe person's of sailing eyes 8 carry out IMAQ, and it is single that the first camera 2 sends to image to process the first image obtainingUnit 4, the second image obtaining is sent to graphics processing unit 4 by second camera 3.
Graphics processing unit 4, for the treatment of the first image and the second image, obtains the first camera 2 and drivesMember eyes 8 session numbers according to this and second camera 3 and driver's eyes 8 line Data Concurrents give controlUnit 6 processed.
Radar 5 is arranged on vehicle, also will with distance and the angle of this car for measuring front target vehicle 9Measurement data sends to control module 6.
Control module 6, for controlling connected component working, is determined front target according to the data of receivingThe position of the picture of vehicle 9 on front windshield, and for example, at the relevant position of transparent demonstration film 1 (Fig. 1Shown in mid point 7) show this front target vehicle 9 driving informations.
Particularly, control module 6 is set up space coordinates taking any point in car as initial point in advance, for example fluteKa Er coordinate system, determines that the surface equation of front windshield in these space coordinates (thereby is arranged at frontThe surface equation of wind transparent demonstration film 1 on glass in these space coordinates is also same); And according toThe first camera 2 of receiving and driver's eyes 8 session numbers are according to this and second camera 3 and driverEyes line 8 data are established out linear equation of two monobasics in these space coordinates, i.e. the first shooting2 with the line equation of driver's eyes 8 and the second camera 3 eyes 8 line equations with driver,Calculate the intersection point of these two straight lines, this intersection point is driver's eyes 8 positions, thereby can determine drivingThe coordinate of member's eyes 8 in space coordinates; And according to distance and the angle of front target vehicle 9 and this carDetermine the coordinate of front target vehicle 9 in space coordinates; Finally according to driver's eyes 8 and front square meshCoordinate and the song of front windshield in these space coordinates in the each comfortable space coordinates of mark vehicle 9Face equation is determined the position of the picture of front target vehicle 9 on front windshield.
Preferably, the first camera 2 and second camera 3 are arranged on meter panel of motor vehicle.
Preferably, radar 5 is arranged at vehicle intake grid position.
Preferably, target vehicle 9 driving informations in front comprise that control module 6 is according to being somebody's turn to do in certain Measuring TimeRelative position in space coordinates changes front vehicle speed/relative this speed of a motor vehicle calculating to car with this carDegree, with this spacing and expection passing time information.
Figure 2 shows that vehicle traveling information display methods in a kind of field of front vision that the embodiment of the present invention providesFlow chart, the method comprises the following steps:
S1: to set up space coordinates when any point in front truck as initial point, and determine when vehicle in front front windshieldThe surface equation of glass in these space coordinates;
S2: survey and the coordinate of definite driver's eyes in space coordinates and front target vehicle at skyBetween coordinate in coordinate system;
S3: the coordinate according to driver's eyes in space coordinates and front target vehicle are in space coordinatesIn coordinate, calculate driver's eyes and the line equation of front target vehicle in space coordinates;
S4: the line equation in space coordinates according to driver's eyes and front target vehicle, and work asThe surface equation of vehicle in front front windshield in these space coordinates, determines that front target vehicle working as front truckThe position of the picture on front windshield;
S5: target vehicle is in demonstration front, the position target of the picture when on vehicle in front front windshield forwardlyVehicle traveling information.
Preferably, Figure 3 shows that in the S2 of Fig. 2, survey and definite driver's eyes in space coordinatesThe flow chart of coordinate, comprising:
S31: obtain driver's eyes when first, second camera of diverse location in vehicle in front with being arranged atFirst, second image of present position;
S32: the first image is carried out image processing and is obtained the first camera and driver's eyes line data,The second image is carried out image processing and is obtained second camera and driver's eyes line data;
S33: according to the first camera and driver's eyes session number according to this and second camera and driverEyes line data, calculate the first camera and driver's eyes line and second camera and drivingMember's the intersecting point coordinate of eyes line in space coordinates, and using this intersection point as driver's eyes in spaceCoordinate in coordinate system.
Preferably, Figure 4 shows that in the S2 of Fig. 2, survey and definite front target vehicle in space coordinatesIn the flow chart of coordinate, comprising:
S41: when radar is set in vehicle in front, adopt the distance of this radar surveying front target vehicle and this carWalk-off angle degree;
S42: determine that according to the distance of front target vehicle and this car and angle front target vehicle sits in spaceCoordinate in mark system.
Preferably, in S5, front target vehicle driving information comprises: survey according to radar in certain Measuring TimeThe front target vehicle of amount and this car relative position in space coordinates changes, the front vehicle speed calculating/ relatively this vehicle speed, with this spacing and expection passing time information.
Preferably, in above-mentioned any method, before step S5, also comprise step: working as vehicle in frontTransparent demonstration film is set on front windshield. Now S5 comprises: transparent demonstration film, with front targetVehicle is capable at identical demonstration front, the position target vehicle in the position of the picture when on vehicle in front front windshieldSail information.
In field of front vision provided by the invention, vehicle traveling information display unit and method are by measuring and obtainingThe position coordinates of driver's eyes and front vehicles, calculate driver's eyes see through windshield glass see beforeSide's vehicle is in the position of the picture of windshield glass position, and directly shows the speed of front vehicles in this position(or relative velocity), distance and with the relative velocity of the two cars front car of how long can overtaking other vehicles etc.Driving information, can adjust in time according to these information driver to the driving situation of self,Reduce the incidence of traffic accident, further improved driver's drive safety, there is very large practicalityBe worth.
The above is the preferred embodiment of the present invention, it should be pointed out that the common skill for the artArt personnel, not departing under the prerequisite of principle of the present invention, can also make some improvements and modifications,These improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. a vehicle traveling information display unit in field of front vision, is characterized in that, comprising:
Be affixed on the transparent demonstration film on shield glass;
The first camera and the second camera that are arranged at driver front side in car, be respectively used to aim at driverEyes carry out IMAQ, and the first camera sends to graphics processing unit, second by the first image obtainingThe second image obtaining is sent to graphics processing unit by camera;
The graphics processing unit being connected with described first, second camera, for the treatment of described the first image andThe second image, the eyes session number that obtains the first camera and driver according to this and second camera and driverEyes line Data Concurrent give control module;
Be arranged at the radar on vehicle, measure distance and the angle of front target vehicle and this car and will measure numberAccording to sending to control module;
With described transparent demonstration film, the first camera, second camera, graphics processing unit and radar differenceThe control module of electrical connection, for controlling connected component working, determines front according to the data of receivingThe position of the picture of target vehicle on front windshield, and in this position display of described transparent demonstration film before thisSquare mesh mark vehicle traveling information;
Described control module is set up space coordinates taking any point in car as initial point in advance, determines described frontThe surface equation of wind glass in these space coordinates, and according to the first camera of receiving and driver's eyeEyeball session number according to this and second camera and driver's eyes line data determine that driver's eyes is describedCoordinate in space coordinates, and determine front target according to the distance of front target vehicle and this car and angleThe coordinate of vehicle in described space coordinates, finally each according to described driver's eyes and front target vehicleCoordinate and the surface equation of front windshield in these space coordinates in comfortable described space coordinatesDetermine the position of the picture of front target vehicle on front windshield.
2. vehicle traveling information display unit in field of front vision as claimed in claim 1, is characterized in that,Described the first camera and second camera are arranged on meter panel of motor vehicle.
3. vehicle traveling information display unit in field of front vision as claimed in claim 1, is characterized in that,Described radar is arranged at vehicle intake grid position.
4. vehicle traveling information display unit in field of front vision as claimed in claim 1, is characterized in that,Described front target vehicle driving information comprises that control module exists according to this car and this car in certain Measuring TimeRelative position in described space coordinates change this vehicle speed of the front vehicle speed that calculates/relatively, with thisSpacing and expection passing time information.
5. a vehicle traveling information display methods in field of front vision, is characterized in that, comprises the following steps:
Step 1: to set up space coordinates when any point in front truck as initial point, and determine when before vehicle in frontThe surface equation of windshield in these space coordinates;
Step 2: survey and coordinate and the front target of definite driver's eyes in described space coordinatesThe coordinate of vehicle in described space coordinates;
Step 3: the coordinate according to driver's eyes in described space coordinates and front target vehicle are in instituteState the coordinate in space coordinates, calculate driver's eyes and front target vehicle in described space coordinatesLine equation;
Step 4: the line side in described space coordinates according to driver's eyes and front target vehicleJourney, and when the surface equation of vehicle in front front windshield in these space coordinates, determine front target carriageIn the position when picture on vehicle in front front windshield;
Step 5: show in the position of the picture when on vehicle in front front windshield at described front target vehicleFront target vehicle driving information;
Set up space coordinates taking any point in car as initial point in advance, determine that described front windshield is at this skyBetween surface equation in coordinate system, and according to the first camera of receiving and driver's eyes session number according to thisAnd second camera and driver's eyes line data determine that driver's eyes is in described space coordinatesCoordinate, and determine that according to the distance of front target vehicle and this car and angle front target vehicle is at described skyBetween coordinate in coordinate system, finally according to described driver's eyes and the described space of the each leisure of front target vehicleCoordinate in coordinate system and the front windshield surface equation in these space coordinates is determined front targetThe position of the picture of vehicle on front windshield.
6. vehicle traveling information display methods in field of front vision as claimed in claim 5, is characterized in that,In described step 2, survey and the coordinate of definite driver's eyes in described space coordinates, comprising:
Obtain driver's eyes position of living in being arranged at when first, second camera of diverse location in vehicle in frontFirst, second image of putting;
The first image is carried out image processing and is obtained the first camera and driver's eyes line data, toTwo images carry out image processing and obtain second camera and driver's eyes line data;
According to the first camera and driver's eyes session number according to this and second camera and driver eyeEyeball line data, calculate the first camera and driver's eyes line and second camera and driverThe intersecting point coordinate of eyes line in described space coordinates, and using this intersection point as driver's eyes describedCoordinate in space coordinates.
7. vehicle traveling information display methods in field of front vision as claimed in claim 5, is characterized in that,In described step 2, survey and the coordinate of definite front target vehicle in described space coordinates, comprising:
When radar is set in vehicle in front, adopt this radar surveying front target vehicle and this car apart from walk-off angleDegree;
Determine that according to the distance of front target vehicle and this car and angle front target vehicle sits in described spaceCoordinate in mark system.
8. vehicle traveling information display methods in field of front vision as claimed in claim 7, is characterized in that,The target vehicle driving information of front described in step 5 comprises: according to described radar surveying in certain Measuring TimeFront target vehicle and the relative position of this car in described space coordinates change, the front speed of a motor vehicle calculatingThis vehicle speed of degree/relatively, with this spacing and expection passing time information.
9. vehicle traveling information display methods in the field of front vision as described in claim 5 to 8 any one,It is characterized in that, before described step 5, also comprise step: when arranging on vehicle in front front windshieldTransparent demonstration film;
Described step 5 comprises: described transparent demonstration film, with described front target vehicle working as vehicle in frontIdentical demonstration front, the position target vehicle driving information in position of the picture on front windshield.
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| CN201410162650.6A CN103895572B (en) | 2014-04-22 | 2014-04-22 | Vehicle traveling information display unit and method in a kind of field of front vision |
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| CN201410162650.6A CN103895572B (en) | 2014-04-22 | 2014-04-22 | Vehicle traveling information display unit and method in a kind of field of front vision |
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| CN103895572B true CN103895572B (en) | 2016-05-18 |
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| CN102998797A (en) * | 2011-09-07 | 2013-03-27 | 奥迪股份公司 | Method used for providing display in motor vehicle according to visual direction of vehicle driver |
| KR20140007709A (en) * | 2012-07-10 | 2014-01-20 | 삼성전자주식회사 | Transparent display apparatus for displaying an information of danger element and method thereof |
| CN202879210U (en) * | 2012-11-14 | 2013-04-17 | 上海博泰悦臻电子设备制造有限公司 | Automobile sheltering screen device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111998780B (en) * | 2019-05-27 | 2022-07-01 | 杭州海康威视数字技术股份有限公司 | Target ranging method, device and system |
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