JPS60183238A - Running information display device for vehicle - Google Patents

Abstract

PURPOSE:To enable running information to be easily read by superposing it with the visual field of a driver, by a method wherein the three-dimentional position of the eyes of a driver is detected, and running information is displayed as a picture on a front glass by means of a display means depending upon the detecting position. CONSTITUTION:A three-dimentional position recognizing device, which recognizes the position of the eyes of a driver is constituted such that it is provided with a picture detector, including a running strobo 2, irradiating a driver 31 from the front, and a pair of two-dimentional cameral parts 3a and 3b, which are both disposed in an instrument panel 34a in a car room, and an electronic computing circuit whch processes a picture and recognizes the three-dimentional position of the eyes of a driver. An output signal from the recognizing device is inputted to an information display control means together with an output signal from a vehicle running condition detecting means, such as vehicle wheel speed sensors 8 and 9, a steering sensor 10, an inclining angle sensor 12. This controls varous information to be displayed as a picture on a liquid crystal board 16, located on a front glass, according to the recognized position of the eyes of a driver.

Description

[Detailed Description of the Invention] Industrial Application Field] This defense relates to a vehicle travel information display device, and is based on 1JI.
The present invention relates to a vehicle driving information display device that three-dimensionally recognizes the position of a vehicle driver's eyes and displays various driving information as images on a windshield without blocking the driver's field of view.

[Prior art] There is always a social demand for improving vehicle driving safety, but normally the final responsibility for driving a vehicle rests with the driver, and it is difficult to improve vehicle driving safety. In order to further improve vehicle driving conditions, it is necessary that the driving state of the vehicle be displayed as information that can be easily understood by the driver.

Conventionally, the display of driving information indicating the driving condition of a vehicle is as follows:
For example, there are speedometers that show the vehicle speed, tachometers that show the number of revolutions of the vehicle drive engine, meters that show the temperature of engine cooling water, and warning devices that alert you to abnormalities in brake oil, engine oil, etc. It simply showed one aspect of the driving condition individually as information. In this case, in addition to the information about the vehicle running that the driver visually recognized, such as road surface conditions, the driver reads the information shown by the above-mentioned display eutectic etc. arranged in the instrument panel. The driver continues driving, making repeated judgments such as ``Since the speed of the vehicle is 50km/hour and the road surface is a little wet, it is necessary to apply the brakes earlier than usual.'' It can be said that such Iζ judgments necessary for driving, that is, deriving sophisticated driving information from individual pieces of information representing driving conditions, were left solely to the driver's experience and intuition. This is because, for example, the coefficient of friction between the vehicle speed and the road surface, its slope, etc. are detected as the driving condition, and based on the driving condition,
Even if information such as "If you apply sudden braking, the vehicle will stop at a distance of A meters away" is displayed on the instrument panel, the driver will not know where in his/her field of vision.
Determining whether it is meters ahead is still a matter of experience and intuition, and there are few advantages to displaying inexpensive driving information that combines individual information such as vehicle speed and coefficients. That's because there wasn't.

However, advanced driving information that is extracted by combining individual pieces of information indicating driving conditions 1. For example, the predicted stopping position of the vehicle due to braking as described above, or the predicted position of the front and rear wheels passing through which changes due to steering. It must be said that if the driver can visually check the position, that is, the predicted passing position of the middle wheel on the road surface, overlapping his/her field of vision, the safety of driving the vehicle will be significantly improved.

Therefore, it has been strongly desired to realize a vehicle driving information display device that can directly display various driving information to the driver.

[Objective of the Invention] The present invention was made in view of improving vehicle driving safety, and an object of the present invention is to visualize advanced driving information based on the driving state of the vehicle so that the driver can directly understand it. It is an object of the present invention to provide a vehicle running information display device that can be visually recognized overlapping the field of view.

[Configuration of the Invention] The configuration of the present invention is made to achieve the above object.
As shown in Fig. 11, there is a driving state detection means M1 that detects the driving state of the vehicle, and a recognition means M that recognizes the three-dimensional position of the eyes of the vehicle driver M2.
3, Freon 1 to display means M4 for displaying running information on the glass
and deriving predetermined driving information from the detected driving state, and displaying the driving information as an image on the freon 1 to the glass by the display means M4 according to the detected three-dimensional position of the driver's eyes. The gist of the present invention is a driving information display device for a vehicle, which has the following features: a driving information display control means M5;

Embodiments of the present invention will be described below with reference to the drawings.

[Embodiment] FIG. 2 is a block diagram showing a schematic configuration of a vehicle travel information display device according to an embodiment of the present invention. In the figure, 1 is a three-dimensional position recognition '4AH (not shown) as a means for recognizing the position of the driver's eyes, and includes an infrared strobe that irradiates infrared light;
The vehicle 2 includes an image detector 3 consisting of a camera 2, two two-dimensional m*81L3a and 3b, and an electronic derivation circuit 5 that performs image processing and recognizes the three-dimensional position of the driver's eyes. 8 is a driving wheel speed sensor, 9 is a driven wheel speed sensor, 10 is a steering sensor that detects the amount of wheel turning by steering, 12
is an inclination angle sensor that detects the inclination of the vehicle in the longitudinal direction (this is a group of detectors as means for detecting the vehicle running state.1
Reference numeral 6 is a liquid crystal board serving as a display means for displaying driving information on the vehicle window. Reference numeral 20 is an information control circuit serving as a driving information display control means for displaying driving information on the vehicle detected by the detector group. Based on the driving state of the driver and the position of the driver's eyes recognized by the three-dimensional position recognition device,
The structure and operation of each device, sensor, etc. will be explained individually.

First, the structure and operation of a three-dimensional position recognition device for determining the driver's OR position will be explained using FIGS. 3 to 12. Fig. 3 shows the arrangement of the main parts of the JJRuru three-dimensional position recognition device in this embodiment. I schematic layout diagram, Figure 4 is a side layout diagram showing the positional relationship between the infrared robot 2 and the two-dimensional image (Φ detector 3 and the driver 31, and Figure 5 is the same
There is a schematic configuration diagram 'C' of the dimensional position recognition device.

In the figure, 31 represents a driver, 32 represents a driver's seat, 33 represents a steering wheel, and 34a represents an instrument panel within the driver board 34, respectively. infrared)
The robot 2 is installed inside the panel 34a and illuminates the driver 31 from the front. Image detector 3
is equipped with two sets of two-dimensional If[1 image sections 3a, 3+1, and each two-dimensional image carrier section 3a (3+1) is a two-dimensional image sensor for infrared detection. -39a (three b), liquid crystal aperture element 42a
(42b), two-dimensional solid-state image sensor (hereinafter simply two-dimensional C
An image signal control circuit 44a<41 that reads the image from the OD (39a (391))
b).

Also, to explain the internal configuration of the electronic N-circuit 5,
In Fig. 5, 52 is the central processing unit (CPU).
, 5'l is a read-only memory (ROM) that stores control/arithmetic programs, etc., 56 is a random access memory ([M)] that can temporarily store and read images, etc., and 57 is an OP U ! - CI at predetermined intervals according to the data written from y2) U A timer that prevents the generation of η timer interrupts to 52. 58 is an analog input port that inputs image data from the image detector 3 as an analog signal. , 59 are output ports 1 to 160 for exchanging data with the information control circuit 20, and output ports 1 to 61 for outputting control signals to the infrared detector 2 and the image detector 3.
is CPU52. ROM54. RAM56. Timer 57° input port 581 communication baud 1-59. Out capo-1-60
62 is a key switch 6G that serves as an ignition switch and receives power from the bus 64.
Each represents a power supply circuit which supplies a stabilized voltage to the receiving electronic arithmetic circuit 5 via the power supply circuit.

As shown in FIGS. 3 and 4, the infrared strobe 2 is installed at a position that illuminates the driver's seat 32 in the lower front direction J, and the infrared light from the infrared strobe 2 is transmitted through the space in the handle 33. It is configured to pass through the driver's seat 32' and illuminate the maximum possible range of the head of the driver 31. The image detector 3 is provided with two two-dimensional CCDs 39a and 39b at symmetrical positions across the optical axis of the infrared strobe 2, and uses an optical system to be described later to detect the infrared strobe 2. An image of the above range is captured by a two-dimensional CCD 39a,
39b is formed on Vl, and is configured to detect this.

Next, among the one light emitting stage and the image detecting means that constitute the optical system of the embodiment, the configuration of the infrared strobe 2 as the light emitting means is shown in FIG. 6, and the two-dimensional CCD 39a, 3 as the detecting means
The structure of the image detector 3 centered on the image detector 3 is shown in FIG. 7, and the structure of the liquid crystal aperture used in the image detector 3 is shown in FIG. 8.

FIG. 6(A) is a side view of the infrared striker [1 and 2;
0 is an infrared light emitter, 71 is a lens for irradiating a wide range of infrared light onto the driver 31, 73 is an infrared filter that transmits infrared light but does not transmit visible light, 7j is a mirror, and 77 is an infrared filter. lens 71
and an in-dog fixing the filter 73 to the Kusuf 5, respectively. , the infrared strobe 2 has a port 1-78a and a nut 78 located approximately in the center of the instrument panel 1 to panel 34z1.
J is fixed to b. The emission spectrum of the infrared light emitter 70 is shown in FIG. Wavelength 800+1 by 73
Light of less than m is cut off and only infrared light illuminates the upper body of the driver 31 l)j'! 1'. For this reason,
The driver does not feel dazzled even when the infrared strobe 2 emits light.

Next, FIG. 7 is an explanatory diagram showing the configuration of the image detector 3. Since the image detector 3 is composed of two sets of two-dimensional imaging units 3a and 31+ having completely the same configuration, the following will be explained below. Among them, the two-dimensional C0D39a and the liquid crystal aperture element 42 are included as the - group.
A2 Image A: The two-dimensional imaging unit 3a, which includes the control circuit 44a as a main part, will be explained below. Two-dimensional imaging unit 3
b can be read as follows: 12-dimensional C0D39bJ, r liquid crystal aperture element 421).

As shown in FIG. 7, the two-dimensional CCD 39n is
・It is installed on the board 86a, and the printed circuit board 87
An image signal control circuit 44a is provided on a, 88a, and 89a.
is formed. In the figure, 90a is a mount adapter that connects a lens 91a with a focal length of 111r that focuses an image on the two-dimensional CCD 39a, a liquid crystal aperture element 42a and a lens 91a, and a liquid crystal aperture element 428 that adjusts the amount of light collected on the two-dimensional CCD 39a. Transparent 2D CCD3
Phototransistor 93a detects the amount of light reaching 9a
is incorporated. Further, reference numeral 95a denotes a case housing a set of two-dimensional imaging units 3a, and bolts 98. Instrument panel 3 by Nut99
It is fixed at 4a. There are two sets of two-dimensional m image sections having the above configuration, and the two sets of two-dimensional image pickup sections 3a and 3b are arranged at symmetrical positions with the infrared strike [I-bore 2] as the center. It consists of

Next, FIG. 8 (A>, (B) shows the liquid crystal aperture elements 42a, 42
FIG. 8(B) is an explanatory diagram showing the structure of FIG. In the figure, 120.121 are two polarizing plates with polarization planes perpendicular to each other, 123.124
are transparent electrodes that sandwich the liquid crystal 125. In this embodiment, the liquid crystal 125 and the transparent electrode 12 are arranged so that the amount of light can be adjusted in five stages.
3.124 is the same concentric circle, from the outside, the liquid crystal 125 is 1
25a, 125b, 125c, 125d, transparent M pole 1
23,124 is 123a (124a), 123+)
(124b), 123c (124c >, 12
3d <1246). Further, wiring is provided so that a voltage can be applied from a power source 127 to each pair of divided electrodes via an analog switch section 128. As shown in FIG.
29 converts it into a voltage output, and depending on the voltage, the four switches 128a, 1 of the analog switch section 128
28b', 128c, and 128d, the current flowing through the phototransistor 93a increases,'! #, the opposite 'FA1 of the liquid crystal aperture element 42a
8 pairs of l+ (123a-124a, 123b-124b
, ・=) are applied sequentially from the outside.

Since the liquid crystal 125 has the property of rotating the polarization plane of transmitted light by 90 degrees when no voltage is applied,
The external light that has passed through the polarizing plate 120 and has become single polarized light is transmitted through the liquid crystal 1
25, the plane of polarization rotates 90°, and another polarizing plate 12
1, is focused by the lens 91a, and is displayed on a two-dimensional CCD.
It reaches 39a. However, when electric IJ is applied to the electrodes 123-124, the liquid crystal 125 changes its orientation direction due to the applied electric field.
The polarization plane of the single polarized light after passing through is no longer rotated 90'82 times by the liquid crystal 125, and is connected to another polarizing plate 121, so that the amount of light transmitted to the lens 91a side is significantly reduced. For this reason, analog switch 128
128a, 128b, etc., the amount of transmitted light of the liquid crystal diaphragm 42a decreases compared to the outer ring part, and the liquid crystal diaphragm 42a performs the same function as a mechanical diaphragm. ,
It works to keep the average light intensity analyzed over the entire two-dimensional CCD 39a constant.

The light whose amount has been adjusted in this way is converted into a two-dimensional C by the lens 91a, together with the aperture action of the liquid crystal aperture 42a.
Form an external 11-shape image on CD, 39a. 2
The dimensional CCD 39a becomes a photoelectric conversion/charge storage element that divides the image into 512 x 512 pixels.
The image of C[) 39 a is quantized by J in each element, photoelectrically converted between electric dI according to the amount of light for each element, and then accumulated as M dog - (go. Image The signal control circuit 44a sequentially scans and reads out the accumulated charge, but the amount of charge changes by 2 from one read to the next read.
Since each element of the dimensional CCD 39a receives and accumulates light according to the amount of light, the readout interval is controlled to be the same for each element. , 'C' corresponds to the readout charge t and the amount of light received by each element during the readout interval.
A3 is outputted to the electronic control circuit 5 as a time-series analog signal in the order of reading.

Next, regarding the process of recognizing the position of both drivers in the electronic circuit 5 using the 14 components shown in FIG. 9, the optical system shown in FIG. This will be explained using a schematic diagram and an example of the process of one stroke shown in FIG.

1---When the switch 66 is switched to a position other than A), the control starts as shown in FIG. and parameters such as HIRA 1 and so on. In the next step 210, a control signal for causing the infrared strobe 2 to emit light is outputted via the output port 0, and at the same time the image of the image detector 3 (Ij sub-control circuit 44a, 4
4b also outputs image readout synchronization (No. 3). The infrared strobe 2 emits light immediately after receiving the control signal, and directs the infrared light to the driver 31. This embodiment shown in FIG. As shown in the schematic diagram of the optical system, the driver 3 is
This infrared light divided into 1 is reflected by the driver 31 and the seat 32, the two two-dimensional CCD 39a in the image detector 3,
The light is focused on 39b. The two-dimensional CCD 39a is
, 39b is the two-dimensional CCD 39a,
39t) is adjusted according to the sensitivity characteristics of photodetection. The reflected light is converted into a two-dimensional CC [
) 39a, 391), an image covering the upper body of the driver 31 at its center is formed.

This is the image +1 in Figure 9. This is indicated by L.

The image formed on the secondary brother CCf) 39a, 39b], an electric charge is generated in the two-dimensional CCD 39a, the famous tree r of 3911 due to As a result of rotation, reading is started from the upper left corner of the image, and as described above, one image signal is sequentially output to the analog manual boat 58.

In step 220, this image signal is transferred to an analog input port.
1 to 58, while performing C high-speed Δ/D conversion, two images f'Gf 4M code system ti11 circuits 4/Ia, 4/I
i+J, Riko! . 7 and stores them in two predetermined areas (hereinafter referred to as image memories) in the RAM 56. Sude 1230-('+; i, Suf 1
The image captured by the knob 220 is a two-dimensional CCD 39a.

391) for each pixel of Ei12x512, determine whether it is completed or old, and if it is not completed (J, step 2
Go back to 20, and if you finish C, move on to the next slab 2 /I
Proceed to O3. By repeating step 220,
Two images R formed on the dimensional CCDs 39a and 39b,
When the quantized image signal related to 1 is inputted manually, the image in the RAM 56 shows the mouth where the infrared strobe 2 emitted light and the driver's upper body at one point. Two sets of image information including Iζ are left. Perform this operation on the image R
Although it is called "freeze" because 9L is fixed, image information [, Lf] is stored on the image screen after freezing. In step 240 and subsequent steps, this image information t<r,
For tgo, so-called pattern recognition processing is performed (j).

In step 240, the image data Rr, L of the image data
Binarization processing is performed on f.

The processing of 2-dimensional processing sets a predetermined level for the information of the light and shade and gradation that the image has, and compares it with the two-dimensional parts that are darker than the one in the novel. CC1) 39a,
The two-dimensional CCD 39a has a black level in a portion where little charge has been accumulated in 39b, that is, a portion 03), and a portion lighter than the black level.

391), the charge is sufficiently accumulated in this part,
In other words, this is a process of clearly changing the bright areas) to the white level. Figure 11 shows an example of this two-spot conversion.

Figure 11 (△) is the original image formed on the image screen after freezing and corresponds to the 1C image information, and Figure 11 (B)
is when the binarization process is applied to this.

An example of an image corresponding to image information after binarization that can be read is ℃. The image after binarization changes depending on the binarization judgment level, but the liquid crystal aperture elements 42a and 42bt'
Since the light intensity is adjusted, it is easy to set a determination level such that the driver's face is at a white level and the background is at a black level.

In the next step 250, the image information thus binarized is subjected to a process of detecting the maximum open portion of its own level. An example of this process will be described below. First, the image information corresponding to the binarized image is sequentially scanned, and when a pixel at the own level is found, it is assigned a number as a label. At this time, eight pixels surrounding pixel A (Fig. 11 (
The pixels a1 to aS) surrounding the judgment pixel aO in C) are checked, and if there is a pixel with a white level that was previously scanned and numbered, it is assigned the same label number as that pixel. If not, assign a new number.

After performing this operation on all images after binarization, if you check the number of images with the same label number, each of the open parts of the white level part (hereinafter referred to as white part) Since the number of pixels is known, the maximum open area can be determined and detected.

For example, if this is done for Figure 11(B), three areas, the white part of the face and the two white parts of the collar area, will be detected with different numbers, and the peak area of the face, which is the largest area part, will be detected. is found as the largest open part.

In step 260, which follows step 250, after the scanning of the image information corresponding to the image after binarization in step 250 is completed and each white area is labeled 1 (1), the maximum white area corresponding to the face is It is determined whether or not an open part has been detected. When the infrared strobe 2 emits infrared light and freezes the image including the half body of the driver 31, some kind of extension occurs, for example, when steering the steering wheel 33. If the face could not be detected due to reasons such as when the spoke of the image detector 3 crossed the optical axis of the image detector 3 or when the driver 31 turned around to drive -1-, the judgment at step 260 is rNOJ. The process then returns to step 210 and repeats the process from step 210 onwards.

On the other hand, if it is determined that a face has been detected, the process proceeds to step 280.

In step 280, image processing is performed on the largest blank part of the white area captured as the face of the driver 31, and the parts that correspond to both eyes of the driver 31 and have different characteristics from the surroundings are extracted. A process is performed in which the point is detected as a singular point and the midpoint between the two singular points corresponding to both eyes is determined. For this purpose,
First, the maximum open portion detected in step 250 is scanned from above in the X-axis direction, and if there are two or more black dots within one scanning line in the X-axis direction, Performs processing to detect the range. Here, a black point means an area where at least four or more pixels are adjacent to each other and have a black level in order to remove noise. Scanning the maximum open part of the white area corresponding to the face in the X-axis direction, a collection of black level areas that do not have a C noise, that is, detecting two or more black points, is a singular point corresponding to the eye. Therefore, in step 280, the range is detected and each black point is regarded as a singular point, and the process of finding the intermediate points between them is performed in step 280. This process will be explained in detail below. Fig. 12 shows a part of an example in which part of the image information after the binarization process is developed on a two-dimensional plane, and the figure corresponds to an image of a face captured by the two-dimensional CCD 39a. This corresponds to approximately the upper half of the maximum opening of the white part. Here, since there is a range in which two black dots are found on one scanning line from scanning in the X-axis direction inside the maximum opening part, each of the black dots is considered to be the right and left eyes, and Rev. , Re C1, and Re
The position is calculated by setting the midpoint between the centers of areas of r and Rei as RC (midpoint between the left and right eyes).

Similar processing is performed on the image information captured by the other two-dimensional CCD 39b, and the position of the midpoint LC between the left and right eyes is calculated.

In this way, the two images including the upper body of Driving@31 captured by the two left and right two-dimensional CCDs 39a and 39b are each processed in steps 240 to 280, and the midpoint between the left and right eyes is seen as the respective image information. 2D C
This means that the coordinates of C on CD39a and 39b have been extracted. As shown in FIG. 10, the values on the x coordinate of the detected midpoint RC1ic of the left and right eyes are
The value on the coordinate is Y [1, each coordinate is a two-dimensional CCD 39
a.

391] and the center lines of lenses 91a and 91b, respectively.

Step 290 F calculates the distance from the image detector 3 to the driver 31 il, C using the coordinates Xr and X of the midpoint of the stone's eye derived from the two images. Perform processing. I received a schematic diagram of the optical system in Figure 10, but unfortunately
t'li f'+ The distance from 31 to lenses 91a and 9'lb is d, and from lenses 91 a and 91 b to each of the second-order older CCDs 39 a and 391), r nojfi
r! A [a, l) '7.7' 9 'l a,
91 b (7) Focus Yli 1tlll wo f to”
j' tt C, the distance 11i11 (l is calculated from the following formula.

d −=−a x, Q, / (Xr −X, Ql =−
=・(1) Here, 1/f = 1/a + 1/(I, so if it can be considered that a・ζ×d, then d −f xi/ (Xr−Xi)−−(2>) (distance d to the charged driver 31, which can be increased by 1)
After storing the data at a predetermined address in the RAM 56, the process proceeds from the step 290 to step 300, where the position of the driver 31 in the left and right direction is moved to the frame 11.

As shown in FIG. 10, the driver 31 is moving toward the center axis of the seat 32, that is, two two-dimensional CCf) 39a.

39 b is placed in the left and right direction with respect to the axis of symmetry arranged at a symmetrical position with /υ between it and the nozzle ζ
Ru. At this time, 2-dimensional CCI) 39 agato1uelζ
X coordinate of the midpoint between the left and right eyes of the driver 31, XrJ,
S can be calculated using the following formula.

Xs =Xr xd /a-u/2・-= (3) Formula (
2) Approximate jJ) (, Xs = Xr
XS may be determined using X (1/f - Ichiri/2...<4). After storing the thus determined horizontal position XS of the driver 31 in a predetermined area of the RAM 56, the process proceeds to slot J310, and step 3
00, the position XS of the driver 31 in the 71 stone direction is two-dimensional C0
D3τ) In the same way as the Height Y
Considering the vehicle height, h assumes that the road surface is the origin in the Y direction.
You can get 1j. Here, Yk is the height from the road surface to the middle point I of the two-dimensional CCD 398, taking into consideration the vehicle height.

Using the same approximation as in the previous equations (2) and (4), Yl+ −(1/f xYt +Yk...(6
) and U, Yh and C also. Ili if! in the height direction of the driver 31! ? Y h is stored in a predetermined upstream address of the RAM 56 . After the process in step 310, the process proceeds to step 320, where the three-dimensional (
1'/Recognize the normal line of the stomach.

Driver 1 who has already hit f290.300,310
position fief
Y h and 7) Cao et al., the three-dimensional position of the driver 31's eyes is expressed by the coordinates (d, Xs, Yb) of the midpoint of the right eye of Kuno 1.
The things are getting louder. In step 320, step 290,
The driver 31 reads out the counts of d, Xs, and
3D of the eye (<7.1ffi - ((d, XS.

Yh) data 1- corresponds to S1, and RAM56
is stored in a predetermined erino'.

The process of recognizing the three-dimensional (flifi ¥) eyes of the C driver 31 is thus completed, and the process returns to step 210 to repeat the above process.

As a result of the above-described processing, the data 1. : Datalets (d, XS, X11) showing the three-dimensional position of the driver's 31 eyes are
) is sent to the control routine to the information control circuit 20 via communication ports 1 to 59, and is used for processing and control within the information control circuit 20.

Next, drive wheel speed adjustment 8. Driven transport speed 1? 9° steering sensor 10. The inclination angle will be explained for the 12-inch group.

In addition to the purpose of detecting the running speed of the vehicle, the drive transport speed U sensor 8 is used to detect the driven wheel acceleration force and the friction coefficient of the road surface when it is determined that the drive wheel is slipping. A driven wheel speed [sensor 9] is provided, but both sensors 8,
Each of 9 is an electromagnetic rotation sensor using a pickup coil, for example, and is configured to output a frequency signal corresponding to the rotation speed of the wheel.

As the steering sensor 10, a conventionally known potentiometer type or the like is used, and is configured to output a voltage signal according to the amount of rotation (wheel turning angle) caused by the steering wheel 33. There is. When the steering is smoothly zero, the voltage signal is also zero, and when the steering is turned to the right, a positive voltage signal is generated, and when the steering is turned to the left, a negative voltage signal is generated whose absolute value corresponds to the amount of turning. Ru.

The inclination angle sensor 12 is used to detect the inclination of the vehicle body in the longitudinal direction, but this can be done by using a pendulum type sensor to check whether the vehicle body is tilted to the vertical direction. good. In other words, as an inclination angle sensor, for example, as shown in FIG. 13, a resistor 400 and a conductor 401 are curved with a predetermined curvature, and are arranged in parallel on a flat plate 402 by a holding member (not shown). Conductor ball 4 moving while making point contact with conductor 401
03 is used, and by measuring the voltage (2) of the conductor 401 when the voltage (2) is applied to the resistor 400, the inclination of the vehicle body can be detected.

Next, the liquid crystal board 16 as a display means will be explained. The liquid crystal board 16 is bonded to the inner surface of the windshield, which exists in the front field of view for the driver 31, with the same curvature.

Its basic structure is that a matrix of liquid crystals separated from each other by an insulator is placed between two polarizing plates. Figure 14 (A) shows the overall configuration in Figure 14 (A).
Figure (B) shows a cross-sectional view taken along the line C-C in Figure 14 (Δ), and the structure and operating principle of the liquid crystal board 16 will be described below with reference to both figures. 1! I will explain about it.

As shown in FIG. 14 (A), the liquid crystal board 16 forms a matrix with n columns in the horizontal direction and rows in the height direction.
Transparent electrode al of n@, a2. ""all (hereinafter referred to as ai) and m transparent electrodes b1゜b2.・
...n at the intersection of bw+ (hereinafter represented by Fbj)
x+++ liquid crystals C1+, C12, """C+l'qC
21, C22, "'0711% """, Cn1,
Cnl.

...cnrn (hereinafter represented by C1j) is formed.

This liquid crystal C1j is a cholesderic liquid crystal having nematic crystal channels and a twisted crystal axis direction.

As shown in the figure, each electrode forms a rectangular frame in the area where the liquid crystal C1j is present. The electrodes are made of indium oxide or tin oxide. As shown in Figure 14 CB, a cross-sectional view of the liquid crystal board, the liquid crystal cij (here 4.tc++ and C12 are shown) is divided into individual sections by insulators d, and held between two thin polarizing plates 01 and g2. and is pasted on the windshield. The transparent electrodes ai and bj described above are deposited on the surface of each of the polarizing plates (11, Q2) opposite to the side where the liquid crystal is present.The electrodes ai and electrodes 1+j are arranged almost orthogonally, When a voltage Ve is applied between ai and an electrode bj, the liquid crystal C1j present at the intersection is subjected to the electric field generated by the voltage ye.When no electric field exists, the liquid crystal C1
j is the vibration direction of the input light along the crystal arrangement direction.
0' *The property of rotating is good, but when an electric field is applied, the arrangement of the two crystals changes and the direction of vibration of the input light turns from 90 degrees depending on the strength of the electric field. It has become. Polarizing plate gt, (12 has a specific vibration direction 1
It has the property of reducing the amount of transmitted light by about 1/2 only for the light that radiates, and the vibration directions are combined so that they are perpendicular to each other.

Furthermore, the insulator d that partitions the liquid crystal C1j is composed of two polarizing plates u1. (It serves as a holding material to keep lz at equal intervals, and along with a tar, it also serves as a holding material to keep the polarization plane of the input light at 90°, similar to liquid crystal.
°I don't like the rotating nature. As a result, although the amount of transmitted light decreases slightly when no voltage is applied to the liquid crystal board 16 GJ, the overall transparency is high.
It allows light to pass through. Note that the periphery of the liquid crystal board 16 is sealed with a sealant.

Electrodes ai are connected to the output of each switch of the analog switch 401, and electrodes j are connected to the output of each switch of another switch 402. The switches inside analog switches 401 and 402 are connected in common at one end of each switch, and are connected to the power supply/
The positive side of 105 is ascii [lg switch/101,
The negative side is connected to the respective common terminals 401a and 402a of the )' prog switch 4.02. The individual switches in the analog switches 401 and 402 are connected to the output ports 1 to d of the information control circuit 2820 (to be described later), and a power source 4050 is connected between the information control circuit 20'C1 pair of electrodes ai and bj). When a voltage is applied to the electrode ai-1 month, the voltage is applied to the electrode ai-1.

Since the liquid crystal C1J existing at the intersection of b and j changes the alignment direction of the liquid crystal, the light transmitted through the polarizing plate 91 (in addition, it is no longer possible to rotate 900 times on its 99 planes, but the polarizing plate g1 produces a specific vibration) The amount of light transmitted only in the direction decreases by about half.
A portion of this light is further blocked by the polarization characteristics of the polarizing plate g2, and the amount of transmitted light at the portion where the liquid crystal CIJ is present is reduced. As a result, the transparency of the intersection point of electrodes ai and bj to which a voltage is applied decreases, so that the field of view through the liquid crystal board 1G is maintained and the 3t amount of transmitted light is utilized to create a point on the liquid crystal board 16''. Displaying (
・2＼ru.

The above describes the two-dimensional position 119 recognition device 7 that recognizes the driver's position, the reciprocal 11γ that covers the tilt angle sensor 12, and the 414 structure and operation of the liquid crystal board 1G (Explanation 1
], but next, let's move on to these parts and equipment; The diagram is = J c as shown in Figure 2.
The schematic configuration and configuration diagram centered on the inside of 0 (14 components) is shown in FIG. 5 parts of earth ()' (M4 are formed. J3 is shown in the figure (,50
0 controls the output from each sensor.
LCD board 16 for input and performance according to u-gram
Central 91j, J, 1l-1 performs processing to control etc.
- (CPU), 51B is a read-only memory ([<OM) in which the control block 1'gram and the first 1111i'-gram are stored, and 520 is a temporary memory where data etc. can be freely read and outdated. A memory (RAM) 530 is a communication boat that communicates with the three-dimensional recognition module ff11 that operates with a built-in microcomputer and inputs necessary arcs related to the three-dimensional position of the driver, and 540 is a drive wheel speed sensor 8. ．． The pulse signal tj3 of the following wheel speed pin 1 and 9 and the steering wheel speed pin 10. j7 from slope angle Renly'12
Input no-log signal Capo-1~, 550.555
is an analog switch 4 for controlling the liquid crystal board 16.
Two output ports that output control signals to 01.4.02, 560 (Yo CPU500.ROMblo, F series ΔM
520, 540 to communication board 1-530° person capo-1.
The data buses connecting the output ports 1 to 550 and 555 to the phase ti are respectively shown.

The human-powered boat 540 has a built-in pulse input section 5401 for manually inputting pulse signals, and a pulse input section 5401 for inputting the Asalog Buddhist name while converting it into Δ/D.

Next (for the control of the information display device, follow the flowchart shown in FIG. 16).

When the key switch is in a position outside 'AZLX (J-), the vehicle driving information display device is activated immediately and is not activated.16
The process starts from Figure B. Mari, first time! ! Step 600 of IJ conversion is completed, and the process goes to CP (clearing the internal register of J500, and the initial value corresponding to the average road surface friction coefficient as the initial value of the road surface I!i% IYA coefficient μ, which will be described later), etc. followed by a slap 610.62
0, the driving wheel speed 1iva is read from the driving wheel speed sensor 1/8 and the driven wheel speed vf is read from the driven wheel speed sensor 9 via the input boat 540. In the swift 630, the judgment level vt for friction coefficient estimation is determined from the driven wheel speed read IJ in step 020 to 1 (with 1 as a constant, V
, t, −It l
The determination level VLJ created at 0 is used to determine whether or not the person is responsible (va>vt?).

The 414 car accelerates when the driving wheels hold (grip) the road surface by 1 herk (C-1), but if the rate of increase in the driving wheels 1 - ruq becomes excessive. , J, when the acceleration exceeds a predetermined value, the drive wheels can no longer grip the road surface and start spinning like a master. Since the predetermined value of acceleration at which the drive wheels start spinning varies depending on the friction coefficient μ between the road surface and the drive wheels, the drive wheel speed Va
When the speed difference between the drive wheel speed and the driven wheel speed vf exceeds a predetermined value, it is assumed that the driving wheels are idling, and the rate of change in the vehicle speed at that point (i.e., the differential value of A) is known. By measuring the acceleration, it is possible to detect the coefficient of friction μ between the road surface and the driving wheels.

Therefore, the result of the determination in step 640 is rYEs
'J, that is, when the driven wheel speed Va exceeds the driven wheel speed by a predetermined value ffj, it is assumed that the road surface holding (grip) limit of the driving wheels has been exceeded, and the process proceeds to step 650, where the friction coefficient μ is calculated. , uk 2xdvf /dvt-(1). Here 2 is a constant. Driven wheel spins during acceleration -4
Since this is generally not the case, the rotational speed can be considered to reflect the vehicle speed, and the time differential value thereof, that is, the friction coefficient μ is subtracted from the acceleration, is stored in a predetermined area of the RAM 520. On the other hand, the determination at step 640 is l' N
When OJ is determined, that is, the acceleration is slow and the drive wheels are not considered to be idling, the process bypasses step 650 and proceeds to step 660. As a result, until the friction coefficient μ is calculated at least once, the average road surface friction coefficient set in step 600 of the initialization will not be the same as the S friction coefficient μ measured and calculated at least once. After the value is stored in RAM
520 is stored in a predetermined area. or,
If the condition of the road surface changes, the distance of 1 meter will be replaced by a new layer with a new coefficient of friction μ. After the processing in step 640 or step 650, the process proceeds to step 66o, where the vehicle speed V is read in the driven wheel speed I in step 620! 1vf
Using 3 as a constant, V= is calculated as 3xvf.

The vehicle speed V is stored in a predetermined location of the RAM 520.

In the following step 670, the steering amount s of the vehicle is read from the steering C series 10 via the input capo-h 540. Steering distance S represents the angle that the steered wheels make with the longitudinal direction of the vehicle (straight ahead direction), and is zero when the vehicle is traveling straight, and increases depending on the amount of steering, and increases when the vehicle is steered to the right. The sign is read as a value with a minus sign when the steering is turned to the left, and the value is stored in the RAM 520.
is stored in a predetermined area. In step 680, the tilt angle 0 in the longitudinal direction of the vehicle is read from the tilt angle sensor 12 via the input boat 540. The angle of inclination 0 is zero when the vehicle is running horizontally, and has a size according to the angle of inclination.When the vehicle is running on an uphill slope, it has a plus sign, and when it is running on a downhill slope, it has a negative sign. Each value is read as an assigned value and stored in a predetermined area of the RAM 520. Through the above steps 650, 660, 670, and 680, the predetermined areas of the RAM 520 include the friction coefficient μ1 between the road surface and the driving wheels, the heavy speed V, the steering angle S, and the inclination angle θ.
6 values were memorized and retained. In the subsequent step 690, a process is performed to calculate the predicted stopping position of the vehicle from these values.

The calculation of the predicted vehicle stop position flFL in step 690 will be explained. Assuming that the JJIM vehicle is running at vehicle speed ■, the time from the start of sudden braking until it comes to a stop is t, the distance until it comes to a stop is L, the acceleration during deceleration due to l1ll motion is α, and the gravitational acceleration is . Then, by mechanical analysis, from ■-α×t...(2) and -1/2α×t...(3) and the force balance relationship, M X α= μX M X Q CO8θ-MX
QXsinθ...(7I) Three equations (2) 1. (3) and (4) are obtained.

Regard these as simultaneous equations and calculate IFI', ■2 = 2xg x (μX CO3θ~5ino)...(5
) It is possible to increase the stopping distance of the vehicle.

Vehicle speed V, friction coefficient μ,
After each inclination angle θ is read out and the stopping distance is calculated using the formula (!c), the value is stored in a predetermined area of the RAM 520, and the process proceeds to the next step 700. Step 7
In 00, the operation will be described in detail first.The 3D position recognition device 1 communicates the 3D position (d, The process of reading C is line 41. 11 messages 41-baud 1
In response to the 3D data request No. 13 outputted from ~530, the 3D position recognition device 1 displays the 3D position of the driver 31 from the communication board 1-59 and sends J data d, Xa, Yh.
The C, CI'1, 500 that sequentially sends out is the communication board I~
530 and swallow it. Following step 710
'-e is the request l, the stopping distance of the two vehicles 1111iL, and the step 700 F k mi 1. : Driver 31
(7) Tertiary L 61ft' (LCD board +6
1- The position of the rebar point displayed on the old line (7), driver 31
The road surface seen through that point is where the vehicle is stopped.
P positioning] The position of the liquid crystal board 161 is displayed (:i) in order to display 9, which is +1" at a certain position.

Fig. 17 shows the vehicle stopping distance 1 - 3 for the driver 31.
Dimensional position ((1, Xs, Yh) LCD board'1
Although the display position and relationship of G-1 are schematically shown, the 17th
Figure (△) J, the height of the point to be displayed on the LCD boat 1- from the road surface is: H= Yh x l-/ (1-+d)...(6)
It can be considered as Already at step 690
Store it in a predetermined area of AM520.1. : Processing is performed to calculate U l-1 using the stopping distance ahead. Also, since the height h of the liquid crystal board 16 itself from the road surface is determined in advance, this height 11 is used to determine the position IV of the display point on the liquid crystal board 16 in the height direction on the board. 1-
Calculate as y=Nh. On the other hand, the horizontal position ir of the point to be displayed? W G, 1 step J/ring suspension S, that is, the wheel is extended from the -(angle) with respect to the longitudinal direction of the vehicle, as shown in FIG. 17(B), W-dxtans = (7). It is symmetrical to the right side of the person (J is the horizontal origin).
The position lx in the i-right direction is determined as L x = W + X s. The digit 5LX in the direction of /1-I and lJ of this 04 display point represents the direction in which the vehicle is traveling due to steering. Through the above processing, the predicted position of the vehicle's stop is superimposed on the field of view of the driver 31, and the position of the point (I x , I-y
). Therefore, the next Sue Up 72
0 corresponds to the position (Lxl-, y) of this point. The C1 output port 550, which knows the liquid crystal C1j located at the overlapping location, is Ei5.
Asilog switch 4 corresponding to electrodes ai and bj through
．． 01. /1.02 drives the internal switch 3, as a result, the liquid crystal C1J present at the intersection of the electrodes A51
acts to reduce the amount of transmitted light and to form a bright spot with no amount of transmitted light overlapping the middle and outer field of view that the driver 31 is gazing at.

After the startup 720 is completed, the process returns to step 610 and repeats the series of processes described above.

In this embodiment configured as described above, in a3, run()
As the condition 1 method, vehicle speed V, friction coefficient 1t between the road surface and the driving wheel
, the inclination angle O, and the steering suspension S are detected, and the vehicle is stopped as driving information when sudden braking is applied.
An image C is placed on the liquid crystal board 16 in the field of view of the driver 31.
It is configured to display.

Therefore, the predicted stopping position of the vehicle, which conventionally depended on the driver's experience and expectations, can be determined by looking at the front field of view that the driver sees (during driving), and can adjust the distance between vehicles appropriately. In addition, it is possible to accurately brake the vehicle and avoid objects, and it is also possible to steer the vehicle while keeping in mind the direction in which it is traveling. 1.11 Unbelievably large profits on LCD board 1
You can enjoy the driving information displayed as an image on the screen.

In this embodiment, the horizontal position of the white color displayed on the liquid crystal board 16 was determined using tan S, which means the traveling direction of the vehicle from the sling amount S to a5. As will be described later in the second embodiment, Aim for the predicted passing position of one of the wheels on the right. If the vehicle slips due to the steering wheel turning, it has little to do with the amount of steering and will continue to slide in the direction of travel at that point.
The term in the driver's stop direction, that is, the term related to the steering b)S in equation (7) may be set to zero.

In the former case, the advantage is that it accurately displays the passing position of the middle wheel, making it easier to drive through bottlenecks.
In the latter case, it is possible to clearly know whether or not a collision can be avoided only by applying the brake suddenly, and there is an advantage that the steering device does not need to detect the steering amount S and can be simplified somewhat.

In addition, in this embodiment, the point to be displayed, 4 (1
, Wt are simplified for the purpose of explanation; in reality, it is sufficient to know the mounting shape of the O-sort glass.

In this embodiment, as a display means, a cholesteric liquid crystal having a nematic crystal structure and a twisted liquid crystal axis direction is used as an element, and a liquid crystal board 16 utilizing its polarization properties is used. The individual elements arranged in
It is also possible to use an ECO display board that takes advantage of its coloring/decoloring properties. Figure 18 shows tungsten oxide (
2 is a cross-sectional view of an ECD combining a dielectric (WOa) and a dielectric, in which a thin film stack of tungsten oxide (WOa) 750, tantalum oxide (Ta 20s ) 760, and iridium oxide (IrOx>770) is shown facing each other. An ECD having a structure sandwiched between two transparent electrodes 780 is shown.

ECD can reversibly perform coloring and decoloring when current is applied, and has the advantage that the amount of transmitted light does not decrease much when compared with liquid crystals that use polarized light. Here, a thin film 4-1 layer ECD using tungsten oxide (WOa)
However, as long as it is a transmission type ECD, it may be an ECD with an electrolyte material sandwiched between electrodes, or an ECD using various organic compounds that have been developed as materials.

Next, a second embodiment of the present invention will be described. The vehicle driving information display device of the second embodiment has a light emitting diode matrix board 800 installed on the top surface of the dash board instead of the liquid crystal board 16 attached to the windshield, and a driving wheel speed sensor 8. Driven wheel speed [Fusa 9.
This embodiment has the same structure as that of the first embodiment 161-, except that the inclination angle sensor 12 is not required in the structure. The vehicle running information display device of this embodiment is configured to input the steering amount as the running state of the vehicle and display the predicted passing position of the middle wheel as the running fj information. Hereinafter, the configuration of the light emitting diode matrix port 800, its display method, and the control of the vehicle travel information display device of this embodiment will be described with reference to FIGS. 19 to 22.

Figure 19 shows light emitting diode A-Doma]~Rixpoord 800
A layout diagram explaining the installation position of and how to display A.
Figure 20 shows a light emitting diode matrix board 8000.
8 is an explanatory diagram schematically showing the structure of a light emitting section 802. FIG. The light emitting diode matrix port 800 includes a light emitting section 802 in which light emitting diodes are arranged two-dimensionally in a matrix, and a concave lens 804, and is installed on the upper surface of the dash board 34. As shown in FIG.
Similar to the liquid crystal board 16 of the embodiment, analog switches 401, 402,
n), vertically stacked rows (bl, l)z, ... io++) of electrodes (hereinafter represented by ai, bj, respectively), and a light emitting diode (jLlt, 12...
..., 1111°A21. jjlz 2 ++...
+jL21, -1in t,! Ln2,...
- vertical nm) is formed so that a current flows from electrode bj to electrode aih. analog switch 401.40
Since the power source 405 is connected to each electrode using J ij ;- 550 . j5
When each switch corresponding to the electrodes ai, bj is closed by the output signal from 5, the current υ limiting resistor 80
A current flows through 6, and the light emitting diodes A and ij emit light. As is well known, light emitting diodes have sharper light emission directionality than ordinary lamps, etc., so after the light emitted from the light emitting section 802 passes through the concave lens 804, a part of it is reflected by the front glass F. Reflected at one point and scattered, the driver 31
is visible. At this time, the concave lens 804 takes into account the focal length of the eyes of the driver 31 who is looking directly ahead, and the light emitting part 804
It works to make the light from 02 appear to be farther away than it actually is. As a result, the driver's license 31 can be clearly seen by superimposing it on the window 11 in the field of view on the glass (= light spot on the top 1) b side. Incidentally, the light from the light emitting diode A-doma 1-rixpod 800 is incident on the glass at a predetermined human angle η" (that part is illegally reflected in the eyes of the driver 31). However, it is also possible to attach a half mirror with a small amount of foul light to the inside of the middle of Noron I-Glast to increase the amount of foul light by ft1(j(1).

Next, while relying on [J-D [F-1] shown in FIG.
When the -Swin 1- is set to the position shown in A), the intermediate and intermediate running iJ information display device is immediately activated, and as shown in Fig. 21CJ,
"Ride no Dokoro" 1)! Between! If rj. Initialization step f10 (') O is real (-1, CP
(The internal register of J 500 is checked, etc.). R: <Step 1010 'r is the distance (-) for measuring the passing position of the wheel.

This is a function that predicts the position of the vehicle and defines the display position after the vehicle has traveled one mile. In step-1020, a process is performed to read the steering amount of the vehicle from the steering sensor 2, and the turning angle S of the center wheel C with respect to the longitudinal direction of the vehicle is taken into account as the turning amount of the steered wheels. Step 1030 (
Step 1010T-t distance l1i11. l-
From the steering resistance S, calculate the position of the point where the middle wheel is predicted to pass and overturn 10 meters ahead. This recitation performed in the floor space 1030 will be explained with reference to the schematic diagram shown in FIG. 22, which shows how the vehicle is traveling.

The distance between the steering amount S of the vehicle and the turning radius of 1 is the distance between the front and rear wheels, S = standing / R (S unit is radian)...The relationship (8) is the new 1 heral. Steering model Q is established. Approximately, it is okay to use equation (8) for understeering.If you change the travel distance by 1 and change the turning angle by 1 from the center of the turn, then θ-L/R( The unit of θ is radian)...(9) How can it be measured? Distance W between the left and right wheels,
Distance between front and rear wheels is 11! The i-sentence is uniquely determined depending on the vehicle.Formula (ε3), (9)
Return the center point of both to the origin, L no 1 hell (here 10
The position of the left and right wheels after running (meter) (1 sentence), Fr can be determined by playing 11-J.

After the left and right wheels are placed at positions f-1, Fr in the slap 1030, the process proceeds to step 1040, where
The 3D position recognition device 1 communicates with the 3D position recognition device 1 through the i-boat 530, and the 3D position recognition device 1fff is placed in the passenger compartment of the driver 31.
A process of reading (d, Xs, Yl+) is performed. The next step 1050'c'' is step 1
030r performance τ);/IX Predicted passing position of right wheel F
A.

1: Driver 31 read with I゛ and smartphone 1040
From the position in the middle room (), place the oil cylinder at the predicted passing position of the left and right wheels.

In this step, using the same hand v1 as the one used to recite the display position of the predicted vehicle stop position in step 710 of the first embodiment, 1-sentence, Fr is λ] 2 □” 2 display position 'a (Xu, Yl), (Xr
.

The essence of Yr). In the following step 1060, Sj:
Calculate with y fl 050/, :Fi, l:r with S・1
1 - So J Ras F'' - place @ (X ship, Y standing).

Anti-oil the light emitting diode (Xr, Yi)
Accordingly, in order to Processing is performed to display the position of either the left or right front wheel and the position of the wheel passing on the other side.

After completing the above processing, the process 9 returns to step 1020, and repeats the series of processes 10) and 1020' to step 1060.

In this embodiment configured as described above, in a3, tiM
Based on both steering f&s and the three-dimensional position of the driver 31, the position where the left and right front wheels would pass 10 meters ahead was determined. [Then, an image created by the light from the light emitting diode is displayed on the front glass window, superimposed on the projected passing position within the driver's front field of vision.Therefore, the pain of driving the vehicle is 10 meters. You can easily know where the right front wheel is expected to pass before the road ahead, allowing you to easily and accurately avoid obstacles, park your car in the garage, etc., and avoid stepping off the shoulder of the road. From the predicted position of the wheels as driving information displayed on the windshield, immeasurable benefits can be obtained in terms of driving safety, such as being able to prevent I5=・J1. .

In this example, the predicted passing position of the wheel is 1' (
Alternatively, you may use a manual switch or the like to specify how many meters ahead the prediction is to be made. If the vehicle speed is changed according to the vehicle speed, for example, as the medium speed increases, the predicted distant wheel passing position; -Knowing the position of the wheels passing near the road makes it easier to visually check the information. In addition, if the C display position can be changed using a manual switch, it will be convenient to know the predicted position of the wheels after traveling the specified distance for each C.
There is a theory. In addition, the time before lighting of the light-emitting diode of the light-emitting diode A-Doma]-Rixpoord 800 is time-divided.
Using so-called dynamic lighting type 15, which displays multiple points, it is possible to display the track of wheels passing through, like a rut, or to display the positions of both left and right wheels at the same time. As the saying goes, safety is a good thing.

In addition, 1st. In the second embodiment, C is equipped with two two-dimensional imaging units as a three-dimensional recognition device. Koshino was used, but it was equipped with one two-dimensional image carrier and distance detection means using Anshima waves. Objects, super t1 wave kJ, other 3D position recognition devices, etc.? I recognition system V? There is no problem in using .

In addition, although the 3&' original position recognition device 1 of these embodiments is equipped with an image processing computer, if the computer in the information control circuit 20 of the device has sufficient capacity, the corresponding In this case, only one -i bicoater is required, and the configuration of the vehicle running information display can be simplified. be able to.

As the display means, any of the transmissive type liquid crystal board or ECD display board of the first embodiment and example, and the anti-resistance type light emitting diode matrix board of the second embodiment may be used. A transparent fluorescent agent is vapor-deposited or coated, and light with a wavelength of approximately 400 nanometers is irradiated from a light emitting diode, etc., to cause the fluorescent agent on the window glass to emit light. Other indicators such as "Jru"
The most suitable front glass shape, including the steps, can be used. Furthermore, in these embodiments, the position of the driver's eyes is represented by the midpoint between both eyes, but the position of either the left or right eye may be used to represent the driver's dominant eye. Good too.

Furthermore, when using light emitting diode matrix ports, the positions of the left and right eyes can be recognized by taking advantage of the light emitting diodes' good light emitting directivity. The driving information may be displayed as a deep image within the field of view by making the light incident on each eye and creating a stereoscopic view using the so-called anaglyph principle.

The driving information to be displayed is the predicted vehicle stoppage.

It is possible to similarly display various driving information that improves driving safety, such as not only measured position and predicted wheel passing position, but also inner wheel difference, appropriate intermediate distance, etc.

[Effects of the Invention] As described in detail above, the medium-sized driving information display device of the present invention detects the driving condition of the vehicle and displays advanced driving information based on the driving condition in the v, j, and driver directions. The position of the driver's eyes is recognized on the IC so that the driver's eyes can be visually checked over the field of view.
It is configured to be displayed as an image on the windshield.

Therefore, judgments that previously were made by the driver based on experience and assistance, that is, advanced driving information derived from individual driving information indicating driving conditions, are read over the driver's field of view. . As a result, the excellent effect of significantly increasing driving safety can be obtained. Therefore, it is possible to solve the problem of not being able to sufficiently ensure driving safety due to the driver's lack of experience or erroneous judgment, resulting in incorrect judgment of the driving state of the vehicle.

[Brief explanation of drawings]

Figure 1 is a basic configuration diagram of the present invention, Figure 2 is a block diagram showing the configuration of an example of the present invention], Figure 3 is an embodiment [outline of the 22 parts of the three-dimensional position recognition device used] Figure 4 is a side layout diagram, Figure 5 is a schematic diagram of the three-dimensional recognition system, and Figure 6 (Δ) is the infrared strike button 2.
FIG. 6 ([3) is an explanatory diagram showing the emission spectrum of the infrared flash 2, and FIG. Fig. ε3 (Δ) shows the liquid crystal aperture element 712a, I'12+10) 4f4'r notice, and Fig. 8 (B) is its cross-sectional view, and Fig. 9
The figure shows the process of determining the three-dimensional position of the operation name in the three-dimensional position recognition device. Figure(,L(△＞,
(B) and (C) show an example of image processing, and Fig. 11 (△
) is an explanatory diagram showing an example of a 15″ JI image, and Fig. 11 ([1
3) +, 2 (both after 1 processing)
Figure 12 is an explanatory diagram illustrating the 1f method for recognizing the 11th position of the eye, Figure 13 is a schematic structural diagram of the tilt angle sensor 12, Figure 14 is an explanatory diagram showing the method. Figure (△) is an explanatory diagram of the structure of the liquid crystal board 16, and Figure 14 ([3) is its c>
15 is a schematic configuration diagram centered on the 11 information control circuit 20 of the first embodiment, and FIG. 16 is a flowchart A-1 showing an example of control/processing of the information control circuit 20.
Figure 17 (A) shows the position of the LCD board where the information is displayed. Figure 17 (13) is a schematic side view of the vehicle to explain the L method, and Figure 18 (F) is a schematic plan view thereof, and Figure 18 (F) is a sectional view showing the structure of t E' C[].
ffi Fig. 19 is an explanatory diagram illustrating the driving information display device in the second embodiment, Fig. 20 is an explanatory diagram showing the configuration of the light emitting diode matrix board 1-''E) 00, and Fig. 21 is an explanatory diagram illustrating the configuration of the light emitting diode matrix board 1-''E) 00. For example, J month information)] open circuit 0
11/Norojito-1 showing an example of processing
~, Figure 22 is an explanatory diagram for measuring the passing R measurement position of the left and right front wheels.・Image detector 5...Electronic part frame circuit 8...Drive wheel speed sensor 9...Dolive wheel speed range υ □ 10...Screen sensor 12...Inclination angle 1G... Liquid crystal board 20...Information control circuit 33'1...Operation &334...Tatsushi' board 52.500...CI-)U 401.402...No'no[-1 switch 800
... Butoyukui A-Doma 1 ~ Ritsupode Agent
Patent attorney - ty 'it standing Tsutomu and 1 other person τi Schiff 0 <'s 8[1 (A) (B) 12bh 7? rc;,+j+or:;,Y play 9 0 + (□-,,--□-→-□-------+-Xλ
xaj yrq mark Fig. 11 Fig. 12

Claims (1)

[Scope of Claims] 1. A driving state detection means for detecting the driving state of the vehicle; a recognition means for recognizing the three-dimensional position of the vehicle driver's eyes; and displaying driving information on the window glass. a display means, deriving predetermined seven-line information from the detected running state;
The detected three-dimensional image of the driver's eyes (C depending on the rl position)
1. A driving information display device for a vehicle, characterized in that the display means displays a driving information surface display system that uses the information as an image and displays the information. 2. A vehicle running information display device according to claim 1, wherein the running state detection means includes a lower stage for detecting a steering wheel LI4 of the vehicle, and the running 1) information is a predicted vehicle passage position. 3. The running state detection means is a vehicle speed detection means, a steering amount detection means of the vehicle, a tilted box detection means in a direction in front of the vehicle,
2. A vehicle travel information display device according to claim 1, comprising road surface friction coefficient detection means, and wherein the travel information is a predicted stop position of the vehicle. 4 Patent 9' in which the coefficient of friction of the road surface is a preset value of 1lfj: A vehicle traveling information display device according to claim 3. 5 A patent in which the display means is a display means that does not obstruct the driver's field of view. The vehicle running information display according to any one of claims 1 to 4 (line 4).