CN104118356A - Auxiliary driving detection method and prompting device - Google Patents
Auxiliary driving detection method and prompting device Download PDFInfo
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- CN104118356A CN104118356A CN201310143025.2A CN201310143025A CN104118356A CN 104118356 A CN104118356 A CN 104118356A CN 201310143025 A CN201310143025 A CN 201310143025A CN 104118356 A CN104118356 A CN 104118356A
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Abstract
The invention provides an auxiliary driving detection method and a prompting device. The prompting device comprises a vehicle-mounted computer, more than 4 cameras, a short-focus projector, a laser projector, a direction locating device, a displayer and a car loudspeaker connected with the vehicle-mounted computer. Based on warning on auditory sense and visual sense of a car driver, the driver can be early warned about emergencies, and the driver has more reaction time through the prompting device compared with common driving devices.
Description
Technical field
The auxiliary method for detecting of driving and a suggestion device, be specially a kind of shooting with video-corder and alarm set for auxiliary driving.
Background technology
For vehicle drive person, the driving visual field of automobile is very important, and the driving behavior of chaufeur is had to direct impact.Automobile has been developed back mirror and left and right visor in evolution.Yet automobile still there will be dead angle in the middle of driving procedure, causes the appearance of all accidents.
Summary of the invention
In order to solve the problems of the technologies described above, the present invention proposes the auxiliary method for detecting of a kind of driving and suggestion device, comprise: car-mounted computer, quantity are at more than 4 cameras, short out-of-focus projection instrument, laser-projector, visual angle registration device, telltale, the auto loud hailer being connected with car-mounted computer.
Camera is arranged in roof, or four differences that are arranged in auto body towards.
The lens focus of camera and shooting angle are all identical, camera horizontal arrangement, respectively corresponding all directions four direction.
Short out-of-focus projection instrument is installed on car door periphery, and all the other four laser-projectors are uniformly distributed in operator's compartment one sidecar window surrounding, in operator's compartment opposite side vehicle window surrounding, also arrange equally laser-projector.Short throw projectors and laser-projector all projection on the vehicle window of operator's compartment both sides.The corresponding back mirror direction of projector projecting direction, installation direction is also identical with projecting direction.Laser is arranged symmetrically with respectively, and projecting direction is relative.
Telltale is arranged in back mirror top or alternative back mirror is arranged in automobile cab.
Visual angle registration device is worn on chaufeur head, visual angle registration device comprises: infrared transmitter, camera, wireless data transceiving device, visual angle registration device is for determining the view directions of chaufeur, and the wireless data transceiving device of visual angle registration device by wherein carries out Wireless Data Transmission with car-mounted computer and be connected.
During device busy proposed by the invention, the picture input car-mounted computer that camera is shot with video-corder, car-mounted computer carries out picture, and frame synchronization is merged into the panoramic picture of 360 °.Utilize aberration principle, the object in picture is carried out to outward appearance identification.By thering is the object of different external appearance characteristics, distinguish.By different objects feature in picture is carried out to record, the variation of the same object appearance proportion of comparison in a Preset Time section.Too fast when the close velocity of object and vehicle, or distance is when cross, and car-mounted computer sends caution sound by loud speaker; If approach object in the blind area of left and right vehicle wheel both sides, by short throw projectors in the place's projection of left and right vehicle wheel vehicle window bed, area of conter covers around vehicle right and left visor, i.e. the visual demonstration expansion of carrying out to former left and right visor; If approach object in vehicle rear-side, show by telltale; If approach object, be the fast approaching that does not meet normal travel conditions, survey by laser projection and carry out profile and retouch limit projection approaching object at vehicle window place, make fast approaching object remarkable.Based on to vehicle driver's sense of hearing and visual warning, can make the situation of chaufeur to burst, more early must be apprised of early warning, there is the more reaction time of more common steer.
Accompanying drawing explanation
Fig. 1 is the structural representation of the full visor of a kind of auxiliary driving proposed by the invention.
Fig. 2 is the auxiliary method for detecting of a kind of driving and suggestion device proposed by the invention, and its car-mounted computer is for the judgement principle schematic of relative spacing and the speed of a motor vehicle.
The auxiliary method for detecting of a kind of driving proposed by the invention and suggestion device, its car-mounted computer is for the judgement principle of relative spacing and the speed of a motor vehicle.
The specific embodiment
Below in conjunction with the preferred embodiments of the present invention, the present invention will be described.
In this preferred embodiment of the present invention, the auxiliary method for detecting of a kind of driving proposed by the invention and suggestion device, comprise: 1 car-mounted computer, 2 Bu Duan out-of-focus projection instrument, 8 laser-projectors, 4 cameras, 1 telltale, a visual angle registration device that is worn on the chaufeur crown.Camera is arranged in roof in all directions four direction.
Short out-of-focus projection instrument is for being arranged on operator's compartment top, the rotating projector that carries out projection to vehicle right and left automobile door glass.Short out-of-focus projection instrument is in operator's compartment, and chaufeur and position, the adjacent seat crown thereof are respectively installed two.
Totally 8 of laser-projectors, are installed on respectively operator's compartment both sides vehicle window surrounding, and installation direction is also identical with projecting direction.Laser is arranged symmetrically with respectively, and projecting direction is relative.
Telltale is arranged in back mirror top or alternative back mirror is arranged in automobile cab, is unlikely to the picture that the camera of rear view of vehicle is shot with video-corder for showing.
Visual angle registration device, comprising: infrared transmitter, and infrared camera, wireless data transmission device, chaufeur is worn on head.Visual angle registration device, infrared generator is worn on the particular location of head in two sides of chaufeur, by infrared transmitter, launches infrared ray, and the infrared-ray downrange of infrared generator is view directions.When infrared-ray is photographed operator's compartment both sides vehicle window, infrared camera can catch its irradiation position, and position data transfers to car-mounted computer by wireless data transmission device.
Car-mounted computer, is installed in car, for controlling camera, and short out-of-focus projection instrument, laser-projector, telltale, internal loudspeaker; Judge relative spacing and the speed of a motor vehicle.
Module annexation figure of the present invention as shown in Figure 1.
The auxiliary method for detecting of a kind of driving proposed by the invention and suggestion device, its car-mounted computer is as follows for the judgement principle of relative spacing and the speed of a motor vehicle:
Afterbody at vehicle is installed camera, the shooting direction of camera and the parallel sided of car, and slightly depart from vehicle body, make this car vehicle body is near one of image border line longitudinally in camera, concerning camera, filter the slight vibrations of light variation and car body, in the image that camera is taken the photograph, shape and the change in location of this car vehicle body side are very little; get two points of this car vehicle body side longitudinal edge line as the R point of vehicle body side, and longitudinal straight line that these two points form is as the lateral edge line of car body.
Image-pickup device is at interval of the image in a period of time picked-up camera the place ahead, and time gap can be according to the actual needs and the speed value of back-end processing device, preferably 0.1 second.
For two adjacent width images, find the feature R point of this car vehicle body object in addition, conventionally can be used as an object by the color block of same color.Get longitudinal two points on object as the unique point of object.
Calculate the change of distance of longitudinal two points of object in adjacent two width figure than r1, r1=(d2-d1)/d1, wherein d1 is the fore-and-aft distance of two unique points of last secondary figure, d2 is the fore-and-aft distance of rear two unique points of a secondary figure.
Calculate object feature point to the change of distance ratio of this car vehicle body side, appoint and get a unique point in object feature point, calculate it to distance d3 and the d4 of car body side edge line, r2=(d4-d3)/d3, wherein d3 is that in last width figure, object feature point is to the distance at car body edge, and d4 is the distance that in a rear width figure, object feature point arrives car body edge.
Relatively r2 and r1, if r2 is less than r1, illustrate that object is near vehicle, and difference is larger, illustrate that close speed is faster, and binding object is from the distance d4 at car edge, and when d4 is less than an empirical value, and r2 is while being less than r1, can judge the risk that has side scratch.
The schematic diagram of the two width images that in accompanying drawing, Fig. 2 takes before and after being, the time that two width figure are separated by is t, in figure, stain is the unique point at this car car body edge and longitudinal unique point of certain " people ".D1 and d2 are the distances of longitudinal unique point of figure before and after certain " people ", and d3 and d4 are the distances at map distance car body edge before and after certain " people ".
Based on as above principle, too fast when the close velocity of object and vehicle, or distance is while crossing, and car-mounted computer sends caution sound by auto loud hailer; If approach object in the blind area of left and right vehicle wheel both sides, by short throw projectors in the place's projection of left and right vehicle wheel vehicle window bed, area of conter covers around vehicle right and left visor, i.e. the visual demonstration expansion of carrying out to former left and right visor;
If approach object in vehicle rear-side, show by telltale;
If approach object, be the fast approaching that does not meet normal travel conditions, survey by laser projection and carry out profile and retouch limit projection approaching object at vehicle window place, make fast approaching object remarkable.
Owing to being arranged at the camera of roof in operator's compartment, can rotate, and then change projecting direction, chaufeur can be adjusted short throw projectors as required at the projected position of operator's compartment both sides vehicle window, also can be manually opened or close the projecting function of short throw projectors, make the picture that vehicle-mounted camera is taken the photograph of short throw projectors institute projection, required picture while being unlikely to cover normal vehicle operation.
Based on to vehicle driver's sense of hearing and visual warning, can make the situation of chaufeur to burst, more early must be apprised of early warning, there is the more reaction time of more common steer.
Claims (2)
1. method for detecting and suggestion device are assisted in a driving, it is characterized in that: comprising: car-mounted computer, quantity are at more than 4 cameras, short out-of-focus projection instrument, laser-projector, visual angle registration device, telltale, the auto loud hailer being connected with car-mounted computer;
Described camera is arranged in roof, or four differences that are arranged in auto body towards;
The lens focus of camera and shooting angle are all identical, camera horizontal arrangement, respectively corresponding all directions four direction;
Described short out-of-focus projection instrument is installed on car door periphery, and described laser-projector is uniformly distributed in operator's compartment one sidecar window surrounding, in operator's compartment opposite side vehicle window surrounding, also arranges equally laser-projector;
Described short throw projectors and laser-projector all projection on the vehicle window of operator's compartment both sides;
The corresponding back mirror direction of described short throw projectors projecting direction, installation direction is also identical with projecting direction;
Described laser-projector is arranged symmetrically with respectively, and projecting direction is relative, and projecting plane covers vehicle window surface, operator's compartment both sides;
Described telltale is arranged in back mirror top or alternative back mirror is arranged in automobile cab.
2. method for detecting and suggestion device are assisted in a kind of driving according to claim 1, it is characterized in that: described visual angle registration device is worn on chaufeur head, visual angle registration device comprises: infrared transmitter, camera, wireless data transceiving device, visual angle registration device is for determining the view directions of chaufeur, and the described wireless data transceiving device of visual angle registration device by wherein carries out Wireless Data Transmission with described car-mounted computer and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310143025.2A CN104118356A (en) | 2013-04-23 | 2013-04-23 | Auxiliary driving detection method and prompting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310143025.2A CN104118356A (en) | 2013-04-23 | 2013-04-23 | Auxiliary driving detection method and prompting device |
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| Publication Number | Publication Date |
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| CN104118356A true CN104118356A (en) | 2014-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310143025.2A Pending CN104118356A (en) | 2013-04-23 | 2013-04-23 | Auxiliary driving detection method and prompting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109552014A (en) * | 2018-12-06 | 2019-04-02 | 郝志杰 | A kind of visualization automotive safety car door |
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2013
- 2013-04-23 CN CN201310143025.2A patent/CN104118356A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109552014A (en) * | 2018-12-06 | 2019-04-02 | 郝志杰 | A kind of visualization automotive safety car door |
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Application publication date: 20141029 |