A kind of display methods prejudging wheelpathTechnical field
The present invention relates to technical field of automotive electronics more particularly to a kind of display methods for prejudging wheelpath.
Background technique
Driver can generate the imbalance of physiological function and mental function after driving for a long time, and objectivelyThere is the phenomenon that driving efficiency decline.Driver's poor sleeping quality or deficiency, long-duration driving vehicle, are easy to appear fatigue.It drivesIt sails fatigue and influences whether the aspects such as attention, feeling, consciousness, thinking, judgement, will, decision and the movement of driver.So that drivingThe decline of people's judgement is sailed, operation is blunt and operation error increases, and is easy to appear traffic accident.Such as patentCN201110449673.1, disclose it is a kind of using substantially transparent windscreen head-up display on the Driving Scene of vehicle dynamicThe method of ground sign picture shape includes: monitoring road conditions；Potential road hazard is identified based on road conditions；Determination identifies potentialThe figure of road hazard；Driving Scene corresponding to the vehicle on the substantially transparent windscreen head-up display dynamicallyIndicate the position of the figure；And the figure is shown on the substantially transparent windscreen head-up display.This method is onlyThe case where road can be reminded, but since driver after driving for a long time, it is blunt to react, when the potential road of discoveryWhen dangerous, driver does not have enough attentions and reaction speed to handle potential road hazard in time.
Summary of the invention
The purpose of the design invention is, provides a kind of showing for anticipation wheelpath that can predict front vehicles running trackShow method.
A kind of display methods prejudging wheelpath, comprising the following steps:
S1: image collection terminal collects the road conditions image of this front side and is sent to central processing unit；
S2: central processing unit analyzes the road conditions image of this front side, obtains and analyze the operation information and hair of front vehiclesSend dependent instruction to projection arrangement；
S3: projection arrangement will be in the wheelpath image projection to windshield of the front vehicles of prediction.
A kind of anticipation formula windshield, image collection terminal including the road conditions image for collecting this front side are kept out the windGlass, projection arrangement and central processing unit for the wheelpath image of front vehicles to be projected to windshield, instituteCentral processing unit is stated to connect with image collection terminal and projection arrangement signal respectively.
By prejudging the wheelpath of front vehicles and being shown on windshield, car owner can intuitively recognize very muchThe possible track of the driving of front vehicles, facilitates car owner to analyze in time and understands situation, makes suitable operation for situation and avoids thingTherefore generation.In addition projected position is windshield, and car owner, which does not need to bow, observes the operation variation that can learn front vehicles.
In step s 2, in step s 2, the operation information of front vehicles is included in front lane and the left and right sidesThe travel speed of the front vehicles in lane, wheel deflect direction and Brake lamp, back-up lamp, the opening and closing feelings there are also rear directionalCondition.In order to preferably prejudge the wheelpath of front vehicles, avoid crashing, so central processing unit passes through concentrationIt analyzes above-mentioned because whether usually prediction front vehicles think parking or thread-changing, reduces the risk for colliding front vehicles.
Can be brought to a halt suddenly to avoid front vehicles by the front vehicles in prediction front lane leads to that rear-end collision occurs,And the whether critical emergency brake of front vehicles is judged just it is observed that whether the Brake lamp of front vehicles is opened by image collection terminalVehicle intelligently reminds car owner to pay attention to front vehicles in time, and predicts that the front vehicles in left and right sides lane are fronts in order to preventThe unexpected thread-changing of vehicle, and deflecting direction and rear directional by the wheel of observation front vehicles can find that front vehicles turn toDirection, front vehicles are judged whether on the lane where thread-changing to this vehicle, if it is, reminding car owner it is noted that front in timeThe thread-changing of vehicle.
The wheelpath image includes that the front vehicles on front lane markings and front lane identify, control twoFront vehicles mark, also this logo on side lane markings and left and right sides lane are known.
In order to more intuitively express clearly the positional relationship of Ben Che and front vehicles, this method is in wheelpath imageIn joined front vehicles mark and lane markings.Front vehicles mark can indicate that the lane markings can with pointing objectTo be indicated with lines, and the knowledge of this logo can be indicated with rectangle.
In step s 2, whether the front vehicles that central processing unit judges front lane have lighted Brake lamp, such asFruit is that then in step s3, emergent stopping mark is added in wheelpath image by the projection arrangement, and the rail that will drive a vehicleIn mark image projection to windshield；If it is not, then continuing not execute.
In order to preferably analyze the operating condition of front vehicles, central processing unit can be according to the Brake lamp of front vehiclesWhether unlatching predicts whether front vehicles can bring to a halt, if it is, car owner is given to send emergent stopping mark, reminds vehicle in timeEmergency brake vehicle in front of main attention, avoids this vehicle from bumping against front vehicles.
Preferably, the method is in step s 2, further comprising the steps of:
S21: whether the front vehicles in central processing unit analysis left and right sides lane have lighted Brake lamp, if it is, executingStep S22, if it is not, then not continuing to execute；
S22: central processing unit analysis follows whether the wheel for following vehicle of front vehicles deflects and whether is rear directionalIt opens, if followed, the wheel of vehicle deflects and/or rear directional is opened, and executes S23；If wheel turn to it is constant andRear directional is closed, then is not continued to execute.
S23: central processing unit analysis follows whether vehicle turns to front lane, if it is, in step s3, throwingRotation arrow and emergent stopping mark is added and by wheelpath image projection to keeping out the wind in image device in wheelpath imageOn glass；If not turning to front lane, then do not execute.
If stopping suddenly due to the front vehicles when left and right sides lane, follows and follow vehicle front vehicles are subsequentVery likely can emergency turn, and vehicle is followed in order to avoid colliding, so central processing unit analysis follows turning for vehicleDynamic direction, when following vehicle to turn to front lane, central processing unit can issue designated command projection arrangement in time and existRotation arrow and emergent stopping mark are added in wheelpath image, Ben Che is avoided to collide with vehicle is followed.
In step sl, image collection terminal collects the road conditions image in left and right sides lane, in step s 2, central processingUnit analysis the left and right sides lane road conditions image, obtain and analyze parallel vehicles operation information and also send dependent instruction toProjection arrangement, in step s3, projection arrangement will be in the wheelpath image projections to windshield of the parallel vehicles of prediction.
Due to and turning in the front lane of this vehicle it is possible that the parallel vehicles acceleration in left and right sides lane is overtaken other vehiclesThe case where, but the road conditions image for only collecting front lane can not predict the run trace of the parallel vehicles of above situation,So image collection terminal can also collect the road conditions image in left and right sides lane.
In wheelpath image, this logo is known different from the mark color that front vehicles identify.
It is different from the color that front vehicles identify by the color for allowing this logo to know in wheelpath image, so that car ownerIt can be easier to differentiate this vehicle and front vehicles in wheelpath image, avoid confusion.
The method also includes between step S2 and S3, interior face recognition terminal collects the facial image of driverAnd it is sent to central processing unit, central processing unit analysis facial image judges the direction of driver face and sends instructions toProjection arrangement, in step s3, the wheelpath figure for the front vehicles that projection arrangement will be predicted according to the direction of driver faceAs projecting to the corresponding position of windshield.
It further include that device is connect central processing unit with cloud processor signal by wireless communication.Due to central processing unitMay not necessarily all vehicle model informations of typing, the central processing unit can upload road conditions image to cloud processor, cloud processorThe vehicle of help analysis front vehicles and parallel vehicles, learns the shape of its Brake lamp, back-up lamp and rear directional, convenientCentral processing unit analyzes the opening and closing situation of Brake lamp, back-up lamp and rear directional.
Detailed description of the invention
Fig. 1 is the flow diagram of this method.
Fig. 2 is the flow chart of branching step in step S2 of the present invention.
Fig. 3 is signal connection schematic diagram of the invention.
Fig. 4 is schematic diagram when car owner uses.
Fig. 5 is wheelpath image under normal circumstances.
Fig. 6 is wheelpath image when front vehicles preparation is turned round.
Detailed description of the invention: 1, central processing unit；2, image collection terminal；3, projection arrangement；4, audio alarm；5, vehicleInterior face recognition terminal；6, wireless communication device；7, windshield；8, lane markings；9, front vehicles identify；10, this logoKnow；11, rotation arrow.
Specific embodiment
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present inventionRather than it limits the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, those skilled in the artMember can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limitedRange.
A kind of display methods prejudging wheelpath, comprising the following steps:
S1: image collection terminal 2 collects the road conditions image of this front side and is sent to central processing unit 1；
S2: central processing unit 1 analyzes the road conditions image of this front side, obtains and analyze the operation information and hair of front vehiclesSend dependent instruction to projection arrangement 3；
S3: projection arrangement 3 will be in the wheelpath image projection to windshield 7 of the front vehicles of prediction.
A kind of anticipation formula windshield, image collection terminal 2 including the road conditions image for collecting this front side are kept out the windGlass 7, projection arrangement 3 and central processing unit for the wheelpath image of front vehicles to be projected to windshield 71, the central processing unit 1 is connect with image collection terminal 2 and 3 signal of projection arrangement respectively.Described image collection terminal 2It is one such or a variety of including rotatable depth camera, laser radar and infrared thermoviewer.The windshield 7It can be other materials, as long as material transparent.The projection arrangement 3 can be projector or head-up display.It is describedAnticipation formula windshield 7 further includes audio alarm 4, and the audio alarm 4 is connect with 1 signal of central processing unit.
In step s 2, in step s 2, the operation information of front vehicles is included in front lane and the left and right sidesThe travel speed of the front vehicles in lane, wheel deflect direction and Brake lamp, back-up lamp, the opening and closing feelings there are also rear directionalCondition.In order to preferably prejudge the wheelpath of front vehicles, avoid crashing, so central processing unit passes through concentrationIt analyzes above-mentioned because whether usually prediction front vehicles think parking or thread-changing, reduces the risk for colliding front vehicles.And divideThe opening and closing for analysing Brake lamp is that front vehicles are braked in time in order to prevent, causes the generation of rear-end collision.
The wheelpath image includes that the front vehicles on front lane markings 8 and front lane identify 9, left and rightFront vehicles mark 9, also this logo on two sides lane markings 8 and left and right sides lane know 10.Front vehicles mark 9 can be withIt is indicated with pointing object, the lane markings 8 can be indicated with lines, and this logo is known 10 and can be indicated with square.
In step s 2, whether the front vehicles that central processing unit 1 judges front lane have lighted Brake lamp, such asFruit is that then in step s3, emergent stopping mark is added in wheelpath image by the projection arrangement 3, and will be driven a vehicleTrace image is projected on windshield 7 and is issued by audio alarm 4 to car owner and reminded；If it is not, then not holdingRow.
Preferably, the method is in step s 2, further comprising the steps of:
S21: whether the front vehicles in the analysis of central processing unit 1 left and right sides lane have lighted Brake lamp, if it is, executingStep S22, if it is not, then not continuing to execute；
S22: the analysis of central processing unit 1 follows whether the wheel for following vehicle of front vehicles deflects and/or rear directional isNo unlatching, if followed, the wheel of vehicle deflects and/or rear directional is opened, and executes S23；If wheel turns to constantAnd rear directional is closed, then is not continued to execute.
S23: the analysis of central processing unit 1 follows whether vehicle turns to front lane, if it is, in step s3,Rotation arrow 11 is added in projection arrangement 3 in wheelpath image and emergent stopping identifies and arrives wheelpath image projectionOn windshield 7；If not turning to front lane, then do not continue to execute.
In step sl, image collection terminal 2 collects the road conditions image in left and right sides lane, in step s 2, centreManage unit 1 analysis the left and right sides lane road conditions image and vehicle shape, obtain and analyze parallel vehicles operation information andDependent instruction is sent to projection arrangement 3 in step s3, projection arrangement 3 is by the wheelpath image projection of the parallel vehicles of predictionOnto windshield 7.
The mark color of mark of mark and front vehicles of this vehicle is different.
It further include that between step S2 and S3, interior face recognition terminal 5 is collected the facial image of driver and is sent toCentral processing unit 1, central processing unit 1 analyze facial image and judge the direction of driver face and send instructions to projection dress3 are set, in step s3, the wheelpath image for the front vehicles that projection arrangement 3 will be predicted according to the direction of driver face is thrownShadow is to the corresponding position of windshield 7.Other than this mode, car owner can also be when entering vehicle, voluntarily adjustment correctionThe projected position of wheelpath image is to adapt to the habit of car owner.The car face recognition terminal 5 is rotating camera, andIt also collects the bending of vehicle interior windshield 7 and inclined degree, central processing unit 1 adjusts the shape of wheelpath image accordinglyShape is to adapt to windshield 7.
It further include that device 6 is connect central processing unit 1 with cloud processor signal by wireless communication.Due to central processing listMember 1 may not necessarily all vehicle model informations of typing, the central processing unit 1 can upload road conditions image to cloud processor, at cloudDevice is managed by the brand of vehicle and the vehicle of the shape analysis front vehicles of vehicle and parallel vehicles, learns its Brake lamp, reversingThe shape of lamp and rear directional facilitates central processing unit 1 to analyze the opening and closing feelings of Brake lamp, back-up lamp and rear directionalCondition.The wireless communication device 6 can be the equipment such as wireless router, bluetooth.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pairThe restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above descriptionTo make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all thisMade any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of inventionProtection scope within.