CN104290675A - Automobile DVD screen anti-glare checking method - Google Patents

Abstract

The invention discloses an automobile DVD screen anti-glare checking method. By means of the principle of reversibility of light of geometrical optics, a driver eye ellipse serves as the collection of numerous point light sources, the light sources emit to a DVD screen and turn into reflection light beams through reflection, and the region where the reflection light beams emit is observed; if partial or all of the reflection light beams penetrate the automobile window transparent region to emit outside the automobile, the glare of the DVD screen is produced; if not, the glare of the DVD screen is not produced, and the DVD screen anti-glare checking is completed. The method is simple and effective, the checking data is more complete, the checking result is more reliable, and the method is adaptive to large-scale promotion and application.

Description

The anti-glare check method of a kind of automobile DVD screen

Technical field

The present invention is the anti-glare check method of a kind of automobile DVD screen, belongs to vehicle complete vehicle and designs and develops field.

Background technology

Automobile DVD day by day popularizes as the important configuration of vehicle-mounted video and music entertainment system, if but the position of DVD screen and angle are arranged unreasonable, from the high light directive DVD screen of outside, likely inject driver's eyes after reflection, chaufeur is produced dazzling, affect traffic safety.

When using Three-dimensional CAD Software (as CATIA, UG NX etc.) to carry out vehicle complete vehicle design, the layout of DVD screen is except considering that the visuality of screen, DVD screen are with except the reasonable clearance of its Surrounding Parts, also must carry out calibration assessment to the anti-glare situation of DVD screen.

When carrying out the anti-glare check of DVD screen, usual way chooses extraneous possible light directive DVD screen, checks reflected light rays and whether enter Driver's eyellipse, if reflected light rays enters eyellipse, then think that DVD screen can produce dazzling; If reflected light rays does not enter eyellipse, then think that DVD screen can not produce dazzling.

The defect of above check method is, extraneous light may through the transmission region directive DVD screen of any one piece of vehicle glass, incident ray position and direction all have uncertainty, only choose the anti-glare check that some incident raies carry out DVD screen, obviously sufficiently complete; And method of exhaustion will be adopted to consider all possible situation, be obviously also unpractical.

Summary of the invention

The present invention is directed to the defect of the anti-glare check method of above DVD screen, according to light path principle of reversibility, propose the anti-glare check method of a kind of automobile DVD screen, the anti-glare check of DVD screen completed thus is more complete, and conclusion has more confidence level.

Technical scheme of the present invention is as follows:

The anti-glare check method of a kind of automobile DVD screen, comprises the following steps:

(1) the preliminary layout of DVD screen is carried out in the position provided according to the moulding of interior trim instrument carrier panel, and described layout should meet chaufeur visual requirement and peripheral clearance requirement;

(2) according to car load operator's compartment human engineering deployment scenarios and chaufeur human body sitting posture, draw Driver's eyellipse according to national standard or SAE standard, choosing of described standard should be corresponding with designing the manikin adopted;

(3) prepare to check needed for periphery digital-to-analogue, comprise instrument carrier panel, door internal decoration plate, vertical column internal decoration plate, glass for vehicle window the automobile main cabin that makes become all of enclosure space, and steering handwheel, seat is at the interior major part in this enclosure space;

(4) Driver's eyellipse is considered as incident light source, gets eyellipse and take up an official post an eyespot as point source of light, make incident ray directive DVD screen surface, ask and make its reflected light rays, on directive screen, the reflected light rays of each point surrounds a reflector space; The union of the reflector space of all eyespots, forms the light beam of Driver's eyellipse light beam after DVD screen reflection;

(5) region of folded light beam directive is investigated, if folded light beam is all blocked by car inner component, not by outside the directive car of glass for vehicle window clear area, according to light path principle of reversibility, illustrate that extraneous high light cannot by glass for vehicle window clear area direct directive DVD screen, DVD screen can not produce dazzling;

(6) region of folded light beam directive is investigated, if folded light beam partially or completely through outside the directive car of glass for vehicle window clear area, according to light path principle of reversibility, then extraneous high light can pass through glass for vehicle window clear area direct directive DVD screen, corresponding reflected light rays must enter Driver's eyellipse, and DVD screen produces dazzling; On this basis, analyze dazzling issuable harm size, corresponding adjustment is made to the layout of DVD screen.

Advantageous Effects of the present invention is:

The present invention utilizes the light path principle of reversibility of geometric optics, using the set of Driver's eyellipse as numerous points light source, these light source directives DVD screen forms folded light beam after reflection, investigate the region of folded light beam directive, if reflected beam part or all by outside the directive car of glass for vehicle window clear area, then think that DVD screen can produce dazzling; Otherwise, then think and can not produce dazzling, thus complete the anti-glare check of DVD screen.The present invention is simple, effectively, check data are more complete, checks conclusion and has more confidence level, be applicable to large-scale promotion application.

Advantage of the present invention provides in the description of detailed description of the invention part below, and part will become obvious from the following description, or be recognized by practice of the present invention.

Accompanying drawing explanation

Fig. 1 is the lateral plan of the light beam of light beam after DVD screen reflection of certain some A on eyellipse.

Fig. 2 is the birds-eye view of the light beam of light beam after DVD screen reflection of certain some A on eyellipse.

Fig. 3 be on eyellipse the lateral plan of the light beam of light beam a little after DVD screen reflection.

Fig. 4 be on eyellipse the birds-eye view of the light beam of light beam a little after DVD screen reflection.

Detailed description of the invention

Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.

The anti-glare check method of automobile DVD screen of the present invention, checking object is DVD screen, by having checked the confirmation to the anti-glare situation of DVD screen, comprises the following steps:

Step 1, the preliminary layout of DVD screen 1 is carried out in the position provided according to the moulding of interior trim instrument carrier panel, and layout should meet chaufeur visual requirement, peripheral clearance requirement etc.

Step 2, according to car load operator's compartment human engineering deployment scenarios, chaufeur human body sitting posture etc., draws Driver's eyellipse 2 according to national standard or SAE standard, and choosing of specific standards should be corresponding with designing the manikin adopted.

Step 3; prepare the periphery digital-to-analogue (complete digital-to-analogue or outside face digital-to-analogue) needed for checking; comprising instrument carrier panel, door internal decoration plate, vertical column internal decoration plate, glass for vehicle window etc. makes automobile main cabin become all of enclosure space and the major part in this enclosure space such as steering handwheel, seat.

Step 4, Driver's eyellipse 2 is considered as incident light source, gets eyellipse 2 and take up an official post an eyespot as point source of light, do incident ray directive DVD screen 1 surface, ask and make its reflected light rays, on directive screen, the reflected light rays of each point surrounds a region (see Fig. 1, Fig. 2).The union of the reflector space of all eyespots, just forms the light beam (see Fig. 3, Fig. 4) of Driver's eyellipse 2 light beam after DVD screen 1 reflects.

Step 5, investigates the region of folded light beam directive, if folded light beam is all blocked by car inner component, not by outside the directive car of glass for vehicle window clear area, according to light path principle of reversibility, illustrate that extraneous high light can not cannot produce dazzling by glass for vehicle window clear area direct directive DVD screen 1, DVD screen 1.

Step 6, investigate the region of folded light beam directive, if folded light beam partially or completely through outside the directive car of glass for vehicle window clear area, according to light path principle of reversibility, then extraneous high light can pass through glass for vehicle window clear area direct directive DVD screen 1, corresponding reflected light rays must enter Driver's eyellipse 2, DVD screen 1 and produce dazzling.On this basis, analyze dazzling issuable harm size, and make corresponding process.

Above-described is only the preferred embodiment of the present invention, the invention is not restricted to above embodiment.Be appreciated that the oher improvements and changes that those skilled in the art directly derive without departing from the basic idea of the present invention or associate, all should think and be included within protection scope of the present invention.

Claims (1)

1. the anti-glare check method of automobile DVD screen, is characterized in that comprising the following steps:

(1) the preliminary layout of DVD screen is carried out in the position provided according to the moulding of interior trim instrument carrier panel, and described layout should meet chaufeur visual requirement and peripheral clearance requirement;

(2) according to car load operator's compartment human engineering deployment scenarios and chaufeur human body sitting posture, draw Driver's eyellipse according to national standard or SAE standard, choosing of described standard should be corresponding with designing the manikin adopted;

(3) prepare to check needed for periphery digital-to-analogue, comprise instrument carrier panel, door internal decoration plate, vertical column internal decoration plate, glass for vehicle window the automobile main cabin that makes become all of enclosure space, and steering handwheel, seat is at the interior major part in this enclosure space;

(4) Driver's eyellipse is considered as incident light source, gets eyellipse and take up an official post an eyespot as point source of light, make incident ray directive DVD screen surface, ask and make its reflected light rays, on directive screen, the reflected light rays of each point surrounds a reflector space; The union of the reflector space of all eyespots, forms the light beam of Driver's eyellipse light beam after DVD screen reflection;

(5) region of folded light beam directive is investigated, if folded light beam is all blocked by car inner component, not by outside the directive car of glass for vehicle window clear area, according to light path principle of reversibility, illustrate that extraneous high light cannot by glass for vehicle window clear area direct directive DVD screen, DVD screen can not produce dazzling;

(6) region of folded light beam directive is investigated, if folded light beam partially or completely through outside the directive car of glass for vehicle window clear area, according to light path principle of reversibility, then extraneous high light can pass through glass for vehicle window clear area direct directive DVD screen, corresponding reflected light rays must enter Driver's eyellipse, and DVD screen produces dazzling; On this basis, analyze dazzling issuable harm size, corresponding adjustment is made to the layout of DVD screen.