CN102923054A

CN102923054A - Method for prompting distance from barrier through rays of double lamp groups of car

Info

Publication number: CN102923054A
Application number: CN2012104612474A
Authority: CN
Inventors: 胡再国
Original assignee: Sichuan University
Current assignee: Sichuan University
Priority date: 2012-11-16
Filing date: 2012-11-16
Publication date: 2013-02-13

Abstract

A method for prompting the distance from a barrier through the rays of double lamp groups of a car relates to the field of safety driving of cars and particularly to a method for prompting the distance between a car and a barrier in front through lamplight. Due to limitation of visual angles, the accurate distance between the car nose and the barrier is difficult to judge, and then the car nose is damaged easily. In order to prompt the distance between the car nose car and the barrier in front, two groups of light sources are adopted; and the two groups of light sources irradiate on the barrier, and then the distance between the car nose and the barrier can be judged through the mutual location relation of light spots. The invention adopts the technical scheme that two linear light sources are arranged on the car nose and the car roof or are both arranged on the car nose, and emergent light of the car roof and lamplight of the car nose intersect at the position 0.5 meter away from the car nose; and when the two groups of lamplight are both arranged on the car nose, one group of lamplight is arranged horizontally, and the other group of lamplight forms an angle of 45 degrees with the horizontal direction. The method has the benefits that the distance between the car nose and the barrier can be prompted clearly, so that the risk that the car nose collides can be reduced; and the light sources are liner light sources, so that the risk that a light source can not irradiate on a barrier can be avoided.

Description

The method of the distance of the two lamp group light promptings of dolly and obstacle

Technical field

The present invention relates to car safety and drive the field, particularly use the distance between light prompt and dolly and the place ahead obstacle.

Background technology

Because the restriction at visual angle relatively is difficult to judge the definite distance between little headstock and the obstacle, causes easily headstock impaired.

Summary of the invention

Be the distance of prompting dolly headstock and the place ahead obstacle, the present invention adopts two groups of light sources, and two groups of light source irradiations by the mutual alignment relation of luminous point, can be judged the distance of headstock and obstacle to obstacle.

The present invention realizes that the technical scheme that goal of the invention adopts is: by the lamp group that a plurality of upper LED lamps that are arranged in parabola lampshade focus form, the LED lamp is horizontally, linear light source of lamp group outgoing; Two groups of linear light sources intersect mutually, and two groups of light can adopt different colors to distinguish, and one group is arranged in headstock, emergent light is parallel to ground, another group linear light source is arranged in roof, and emergent light and first group of light intersect front 0.5 meter of headstock, see one group of light by observing at obstacle, distance is more and more nearer, see two groups, two groups of light overlap, and the distance of this moment is 0.5 meter, from security standpoint, should stop; Perhaps two groups of light all are arranged in headstock, one group of light horizontal arrangement, and a kind of light is from the horizontal by 45 degree, upwards outgoing, the vertical distance of two groups of light seeing from obstacle is exactly the distance of headstock and obstacle.

The invention has the beneficial effects as follows: because light mutual alignment relation can be known the distance of prompting headstock and obstacle, can effectively reduce the risk of headstock collision; Light source is linear light source, can effectively expand horizontal direction, can avoid the point source of light irradiation less than the risk of obstacle, can effectively show the distance with any obstacle.

Description of drawings

Fig. 1 is that two lamps show 1 scheme drawing apart from embodiment.

Fig. 2 is that two lamps show 2 scheme drawings apart from embodiment.

Wherein, the 1, first lamp group, 2, chaufeur, the 3, second lamp group, 4, intersection point, 5, two lamp group.

The specific embodiment

Embodiment 1

In headstock horizontal arrangement the first lamp group 1, at roof to oblique arranged beneath the second lamp group 3, the intersection point 4 of two groups of light is apart from 0.5 meter of headstock, and chaufeur 2 can be by the movement on obstacle of observing light, the position relationship judgement headstock that passes through two groups of light and the position relationship of obstacle.

Embodiment 2

Arrange two lamp groups 5 before headstock, the angle of two lampshades of lamp group lamp becomes 45 degree, and the vertical spacing of light on obstacle is exactly that headstock is apart from the distance of obstacle.

The first lamp group 1, the second lamp group 3 are respectively one group of light, two lamp groups 5 are comprised of two groups of separate light, every group of lamp adopts a horizontal row LED lamp, every group is that 1 watt LED lamp forms by 5-10 power, all LED lamps are on the focus of parabola lampshade, make emergent light present a linear light source.

Claims

1. the method for the two lamp group light promptings of dolly and obstacle distance is characterized in that:

A. the lamp group that is formed by a plurality of LED lamps that are arranged on the parabola lampshade focus, the LED lamp is horizontally, linear light source of lamp group outgoing;

B. two groups of linear light source lamp groups is furnished with two schemes, the first: one group is arranged in headstock, and emergent light is parallel to ground, and another group linear light source is arranged in roof, emergent light and first group of light intersect front 0.5 meter of headstock, see one group of light by observing at obstacle, distance is more and more nearer, sees two groups, two groups of light overlap, the distance of this moment is 0.5 meter, and from security standpoint, should stop this moment; The second: two groups of light all are arranged in headstock, one group of light horizontal arrangement, and a kind of light is from the horizontal by 45 degree, upwards outgoing, the vertical distance of two groups of light seeing from obstacle is exactly the distance of headstock and obstacle;

C. two groups of light can adopt different colors to distinguish.