JPH039520B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a movement guiding device for a moving object, and particularly to a device for guiding the movement of, for example, a car, an airplane, a ship, or even a person.

When driving a car, visibility becomes extremely poor and dangerous when it is foggy or raining. Especially if it's foggy.
Even with head lamps and fog lamps, visibility was not much improved and it was dangerous. Furthermore, when passing through an intersection, traffic lights become difficult to see, making it extremely dangerous.

On the other hand, many airplanes are equipped with automatic landing systems, but if such automatic landing systems malfunction, or during other emergency landings in foggy or rainy conditions,
Very dangerous.

Therefore, the main object of the present invention is to provide a movement guide device for a moving object that can reliably guide the movement of the moving object even if visibility is poor due to fog, rain, etc., for example.

In summary, the present invention is such that a light beam emitted from a light beam generating means is scanned by a light beam scanning means to form a wall of light for guiding the movement of a moving body.

The above objects and other objects and features of the present invention will become more apparent from the following detailed description with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of the present invention. In the figure, traffic lights 1,
2, 3 and 4 are provided. That is, the traffic signal 1 is provided for vehicles traveling in the lane L1. Similarly, traffic signals 2, 3, and 4 are provided for vehicles traveling in lanes L2, L3, and L4, respectively.

Here, beam scanner BS1,
BS2, BS3 and BS4 are provided.

Figure 2 shows the beam scanner BS1 or BS mentioned above.
FIG. 4 is a perspective view of the external appearance. In the figure, a mirror 23 is attached to a rotating shaft 22 of a motor 21.
A laser device 24, which is an example of a light beam generating means, is arranged so that the laser beam LB hits the reflective surface of the mirror 23. Therefore, the laser beam LB is rotated and scanned on the road as shown in FIG. 1 in response to the rotation of the mirror 23 by the motor 21. That is, the motor 21, the rotating shaft 22, and the mirror 23 constitute an example of a light beam scanning means.

FIG. 3 is an external perspective view showing another example of the beam scanner. FIG. 4 is a sectional view along the line of FIG. 3. In the figure, a cylinder 31 and a motor 3
3 are each held by a holding member 34 on each of the traffic lights 1 to 4 shown in FIG. In addition, the cylinder 31
is rotatably held by a holding member 34, and the motor 33 is fixedly held by the holding member 34. On the other hand, a rotating shaft (not shown) of the motor 33 is connected to the cylinder 31 and rotates the cylinder 31 clockwise and counterclockwise. A slit 32 is formed in the cylinder 31, and a laser beam LB is emitted from the slit 32. These cylinder 31, motor 33, and holding member 34 constitute another example of the light beam scanning means.

Referring to FIG. 4, inside the cylinder 31, a laser device 35, which is an example of a light beam generating means, is mounted on the holding member 3.
6. The laser beam emitted from the laser device 35 is diffused by a concave lens 37, then converted into parallel light by a convex lens 38, and is emitted from the slit 32. Therefore, by using the beam scanner shown in FIGS. 3 and 4, it is possible to rotationally scan a laser beam having a certain width.

The beam scanner as described above is installed at each traffic signal 1.
Three units will be installed every four days. In other words, there is a beam scanner for rotating and scanning a red laser beam, a beam scanner for rotating and scanning a yellow laser beam, and a beam scanner for rotating and scanning a green laser beam in accordance with the color of the traffic signal indicator light. A beam scanner is provided for the purpose. When the traffic signal lights up the red indicator light, the red laser light is rotated and scanned, and when the yellow indicator light is on, the yellow laser light is rotated and scanned, and the green display When the light is on, the green laser beam is rotated and scanned.

Experiments have shown that when a laser beam is rotated and scanned when it is foggy or raining, the rotating scanning surface appears as a wall of light. This is because the laser light is scattered when it hits fog or rain particles, and also because the laser light has sharp directivity. Furthermore, as a result of the experiment, the wall of light is visible only to the laser beam coming towards the observer from in front of the observer, and when the observer moves away from the rotating scanning surface of the laser beam by more than a predetermined angle, the wall of light appears. I found out that I couldn't see it. This is thought to be because the directivity of the laser beam is sharp and it does not diffuse even if it goes ahead. To explain this with reference to FIG. 1, the laser beam rotated and scanned by the beam scanner BS1 forms a wall of light in space as shown by diagonal lines. It is clearly visible from car 5 traveling in direction A. That is, other lane L
2, L3 and L4 are invisible or very difficult to see from a vehicle traveling in the direction of arrows B, C and D, respectively.

Now, assuming that traffic lights 1 and 2 shown in Figure 1 have their red lights on, and traffic lights 3 and 4 have their green lights on, the beam scanner
BS1 and BS2 rotate and scan red laser beams, and beam scanners BS3 and BS4 rotate and scan green laser beams. Thus, for example, when the driver of car 5 approaches an intersection, he will see a wall of red light standing almost perpendicular to the road. Furthermore, the road surface that is hit by the laser light reflects particularly brightly and is easy to see. This allows the driver to recognize the following: That is, it is possible to recognize that there is an intersection ahead and that the corresponding traffic signal at the intersection is in a red display state. Therefore, even when visibility is poor due to fog or rain and the indicator light of a traffic signal cannot be seen, the driver can reliably stop the vehicle before the intersection. On the other hand, lanes L3 and L
4. When a car approaches an intersection, it will see a wall of green light. Furthermore, the green lines painted on the road look particularly bright. Therefore, it can be recognized that the corresponding traffic signal at the intersection ahead is in the green display state. Therefore, the driver drives the vehicle straight without stopping the voice. At this time, since the wall of light extends parallel to the road, the driver can pass through the intersection without any problems by using the wall of light as a guide and proceeding along the wall of light. In this way, the color of the wall of light not only has the effect of indicating danger or safety, but also has the effect of guiding the car along the direction in which the wall is formed.

In addition, in the above-mentioned embodiment, the case where the wall of light is formed so as to extend in a straight line along the road is explained, but in order to represent a right turn signal or a left turn signal, a light wall extending in a curved shape is formed. You can also do that. In this case, for example, in a beam scanner as shown in FIG. 2, the mounting angle of the mirror 23 with respect to the rotating shaft 22 may be changed. That is, in FIG. 2, the rotation axis 22 and the plane of the mirror 23 are parallel to each other, but
If the mirror 23 is mounted so that its plane is oblique to the rotation axis 22, the trajectory of the laser beam on the road will be approximately parabolic. Therefore, by appropriately adjusting the mounting angle of the mirror 23 and the rotating angle of the motor 21, it is possible to form a wall of light along the line in which right-turning vehicles and left-turning vehicles should proceed, and to create a wall of light along the line in which right-turning vehicles and left-turning vehicles should proceed. can be substituted for.

FIG. 5 is a schematic perspective view showing another embodiment of the invention. In this embodiment, a wall of light is formed around the construction site 50 to divert vehicles away from the construction site 50 on the road. For this purpose, beam scanners BS are provided at appropriate locations. In this case, it is preferable that the beam scanner BS be portable, so it may be installed in a work vehicle, for example. Furthermore, if a beam scanner that forms a wall of light extending in a curved shape as described above is used, it would be possible to surround the construction site 50 with a wall of light using one beam scanner.

FIG. 6 is a schematic perspective view showing still another embodiment of the invention. In this embodiment, the beam scanners BS are arranged at appropriate intervals on both sides of the runway. In this way, walls of light will be formed on both sides of the runway. Therefore, airplane 6
The pilot of Airplane 6 can recognize that the area between the walls of light is the runway, and even if visibility is poor, the pilot of Airplane 6
0 can be landed reliably and safely. In addition, in Figure 6, the beam scanner BS is installed on the ground,
The laser beam is rotated and scanned upwards of the runway, but even if a beam scanner BS is installed on the pole as shown in Figure 5, the laser beam is rotated and scanned toward the runway. good. However, if a pole is provided, the pole and the airplane 60 may come into contact with each other, which is dangerous. Therefore, it is preferable to provide the pole on the ground as shown in FIG.

Note that this invention can be applied to various things other than the embodiments described above. For example, it can be used to guide ships navigating within a port. It is also possible to form a wall of light on the center line of the road, thereby preventing cars from running off the center line. Furthermore, if the side of the road is a cliff, a wall of light can be formed along the side of the road to prevent cars from falling off the cliff. Furthermore, they can be installed on mountain trails to prevent climbers from getting lost.

In the above-described embodiment, laser light is used, but a normal light source such as a sodium lamp may be used, and the light emitted from the light source may be made highly directional using a lens or the like.

As described above, according to the present invention, a wall of light is formed in a space to guide the movement of a moving object, so even if visibility is poor due to fog or rain, the moving object can be guided. I can definitely guide you.

[Brief explanation of drawings]

FIG. 1 is an external perspective view showing an embodiment of the present invention. FIG. 2 is an external perspective view showing an example of the beam scanner used in FIG. 1. FIG. 3 is an external perspective view showing another example of the beam scanner.
FIG. 4 is a sectional view taken along the line - in FIG. 3.
FIG. 5 is a schematic perspective view showing another embodiment of the invention. FIG. 6 is a schematic perspective view showing still another embodiment of the invention. In the figure, 1 to 4 are traffic lights, BS1
Or BS4 is a beam scanner, 5 is a car, 2
1 and 33 are motors, 23 is a mirror, 24 and 3
5 indicates a laser device.

Claims (1)

[Scope of Claims] 1. A movement guide device for a moving body comprising light beam generating means 24, 25 and light beam scanning means 21 to 23, 31, 33, 34, wherein the light beam scanning means A movement guide device for a moving object, which scans a light beam from a light beam generating means to form a wall of light for guiding the movement of the moving object. 2. The movement guide device for a moving body according to claim 1, wherein the light beam generating means is a laser light source. 3. The movement guide device for a moving body according to claim 1 or 2, wherein the light beam scanning means scans the light beam from above to below. 4. The movement guide device for a movable body according to claim 1 or 2, wherein the light beam scanning means scans the light beam from below to above. 5. A movement guide device for a moving body according to any one of claims 1 to 4, wherein the light beam scanning means scans a light beam along a path of the moving body. 6. The movement guide for a movable body according to any one of claims 1 to 4, wherein the light beam scanning means scans a light beam along the outer periphery of an area into which the movable body is prohibited from entering. Device. 7. The movement guide for a moving object according to any one of claims 1 to 6, wherein the light beam generating means and the light beam scanning means are provided in connection with a traffic signal installed on a road. Device. 8. The light beam generating means includes a plurality of light sources that generate a plurality of different colors, and selects a light beam of a different color depending on a display state of the traffic signal.
A movement guide device for a moving body according to claim 7.