JP7401905B2 - Road markings and road marking construction methods - Google Patents

Description

The present invention relates to a road marking and a method of constructing a road marking, and more particularly to a road marking including an IC tag and a method of constructing a road marking.

Generally, there are signs installed to guide pedestrians, cars, etc. passing on the road, and road markings that are drawn or installed directly on the road surface.

Road markings include, for example, those formed by burying studs made of plastic resin or metal in the road, and those formed by simply drawing directly on the road using paint. Road markings formed in this manner are widely used with various innovations taking into account ease of installation, cost, visibility, and the like.

For example, Patent Document 1 discloses a reflector that includes a retroreflective material, is formed in advance using melted marking paint before being installed on the road surface, and has a shape that swells toward the side opposite to the road surface. has been done. The reflector is fixed to the asphalt pavement as a reflective road stud when the fusion type marking paint hardens, so it can be easily installed at any location on the road surface.

Incidentally, in recent years, technologies related to car navigation systems and automatic driving systems that utilize map information, traffic information, driving information, environmental information, etc. have been developed. In these systems, it is important how to obtain accurate information such as map information, traffic information, driving information, and environmental information, and GPS, in-vehicle cameras, wireless tags, communication technology, etc. are used. There is.

Therefore, when constructing road markings, there is a technique in which IC tags are mixed with paint applied to the road surface and dispersed using a sprayer or the like (for example, see Patent Document 2). Specifically, paint at a high temperature (approximately 200° C.) is applied to a predetermined location on the road using a spray gun or the like. Next, the mixed glass beads and IC tags are sprinkled on the surface of the paint before it is cooled and solidified using a sprayer or the like. As a result, the IC tag is placed on the surface of the road marking.

Unexamined Japanese Patent Publication No. 2016-164359 JP2011-252294A

However, in the construction method described in Patent Document 2, although the IC tags can be easily placed by scattering them on the road surface, the attachment to the road surface is unstable. Further, although the IC tag is protected by a covering material, since it protrudes and is exposed to the surface of the road surface, it is quite conceivable that it will be worn out and damaged by passing vehicles and the like.

Therefore, the present invention has been made in view of the above-mentioned problems, and one of the objects of the present invention is to provide a road surface marking and a road surface marking that can easily and reliably attach an IC tag to a road surface. The purpose of this project is to provide a construction method.

In order to achieve the above object, the present invention includes at least the following configuration or executes the procedure. In the following description, in order to facilitate understanding of the present invention, reference numerals shown in the drawings may be added, but each component of the present invention is limited to those shown in the drawings. Rather, it should be interpreted broadly within the technical understanding of those skilled in the art.

A road marking according to one aspect of the present invention is a road marking placed on a road surface to guide a moving object, and includes a base member laid on the road surface to be fixed to the road surface, and a base member laid on the road surface to be fixed to the road surface. a fusion type road marking member to be fused, the fusion type road marking member having a notch portion formed in a part of the side to be fused to the base member; and a notch portion formed by the notch portion. It is characterized in that it includes an IC tag placed in a space, and a heat-resistant member placed so as to close a notch in which the IC tag is placed.
With this configuration, the road marking according to one aspect of the present invention has the IC tag disposed in the space formed by the notch in the meltable road marking member fused to the base member, so that the IC tag is not attached to the road surface. can be easily and reliably fixed.

Preferably, the heat-resistant member is disposed at least between the base member and the IC tag.
With this configuration, in the road marking according to one aspect of the present invention, a heat-resistant member is disposed between the base member and the IC tag, so that the IC tag is not damaged by heat when the road marking is installed. This can be avoided.

Preferably, the heat-resistant member is arranged so as to cover the IC tag arranged in the notch.
With this configuration, in the road marking according to one aspect of the present invention, the heat-resistant member is arranged so as to cover the IC tag, so that the IC tag can be prevented from being damaged by heat or impact from the surroundings.

Preferably, the heat-resistant member is made of urethane.
With this configuration, the road marking according to one aspect of the present invention can protect the IC tag more reliably by utilizing the heat resistance, hardness, and elasticity of urethane.

Preferably, the meltable road marking member has a substantially circular or elliptical shape, with a central portion having a larger thickness than a peripheral portion, and the cutout portion is formed on the meltable road marking member. It is characterized by being formed in the central part of the member.
With this configuration, the road marking according to one aspect of the present invention can reduce the impact on the vehicle side even if a tire or the like of the vehicle passes by, and also has an IC in the thick center portion Since the tag is arranged, damage to the IC tag can be avoided.

Preferably, the base member is larger than the meltable road marking member.
With this configuration, the road marking according to one aspect of the present invention reduces the possibility that a gap will be formed between the road surface, the base member, and the melt-type road marking member, and provides high adhesion and more reliable adhesion. be able to.

Preferably, the surface of the melt-type road marking member has a curved shape.
With such a configuration, the road marking according to one aspect of the present invention can reduce the burden on the vehicle even if a tire or the like of a vehicle passes through the road marking.

Preferably, the base material and the melt-type road marking member are formed of melt-type paint.
With this configuration, the road markings according to one aspect of the present invention are formed of the same material, and therefore have good adhesion, and work efficiency and production efficiency are improved, so that production costs can also be reduced.

Preferably, the melt-type road marking member is formed of a melt-type paint containing glass beads.
With this configuration, the road marking according to one aspect of the present invention can improve visibility due to the glass beads included in the melt-type road marking member.

Preferably, there is also a road marking construction method for constructing a road marking placed on a road surface to guide a moving object, the method comprising: laying a base member on the road surface, and heating the base member laid on the road surface. a notch portion formed in a part of the side to be fused to the base member; It is characterized by including an IC tag placed in a space formed by the notch, and a heat-resistant member placed so as to close the notch in which the IC tag is placed.
With this configuration, the method for constructing a road marking according to one aspect of the present invention includes arranging an IC tag in a space formed by a cutout in a meltable road marking member that is fused to a base member. Therefore, the IC tag can be easily and reliably fixed to the road surface.

As described above, according to the present invention, it is possible to realize a road marking and a road marking construction method that can easily and reliably fix an IC tag to a road surface.

1 is a diagram showing a vehicle traveling on a road on which road markings 100 according to an embodiment of the present invention are arranged; FIG. 1 is a perspective view showing a road marking 100 according to an embodiment of the present invention. 1 is a perspective view showing a melting type road marking member 110 and a base member 200 that constitute a road marking 100 according to an embodiment of the present invention. 1 is a cross-sectional view showing a road marking 100 according to an embodiment of the present invention installed on a road surface 20. FIG. 1 is a flowchart showing a road marking construction method 400 for constructing a road marking 100 on a road surface 20 according to an embodiment of the present invention.

Hereinafter, one embodiment of the present invention will be specifically described with reference to the drawings. In addition, the embodiment described below is merely a specific example for implementing the present invention, and is not intended to be interpreted in a limited manner.

<Summary of road markings>
FIG. 1 is a diagram showing a vehicle traveling on a road on which road markings 100 according to an embodiment of the present invention are arranged. In FIG. 1, on a road (road surface) 20 on which a vehicle (mobile object) 10 travels, road markings 100 that are continuously arranged as a center line 30 include IC tags. Using the IC tag, various information is transmitted and received between each vehicle, a wireless base station, a management center, etc., and, for example, the vehicle 10 traveling on the road is controlled to realize driving support and automatic driving. I will do it.

Typically, the vehicle 10 traveling on the road is assisted or automatically driven along the center line 30. When the vehicle 10 attempts to run deviating from the center line 30, the IC tag included in each road marking 100 detects this and notifies the driver by operating a warning device provided in the vehicle 10. Furthermore, the IC tag and a driving support system provided in the vehicle 10 guide the vehicle 10 to the correct travel route, or the vehicle 10 is controlled by an automatic driving system to drive the vehicle 10 on the correct route in advance.

Note that the information acquired using IC tags installed on roads in this way is not limited to only vehicles traveling on the roads in question. It is also possible to collect and analyze map information, traffic information such as traffic jams, environmental information such as weather and temperature, etc. via wireless base stations, etc., as well as other live cameras and security cameras installed on roads. It can also be used in combination with image data acquired by an on-vehicle camera and used in various other systems and applications.

<Detailed configuration of road markings>
FIG. 2A is a perspective view showing a road marking 100 according to an embodiment of the present invention, and FIG. 2B is a perspective view of a meltable road marking member 110 and a base member 200 that constitute the road marking 100 according to an embodiment of the present invention. FIG. 2A and 2B, the road marking 100 includes a meltable road marking member 110 and a base member 200.

The melt-type road marking member 110 is made by solidifying a line material made of melt-type paint into a substantially circular shape, and is formed so that the thickness of the center portion is greater than that of the peripheral portion. It is also assumed that the tires of a vehicle pass over the road marking 100, and if the melting type road marking member 110 has a substantially circular shape and the peripheral portion is thinner than the central portion, the road marking 100 may On the other hand, no matter which direction the tires pass from, the impact of impact on the vehicle can be alleviated. As a result, the burden on the tires of the vehicle and the vehicle itself can be reduced, and the impact on the driver, fellow passengers, and loaded objects can also be reduced.

Further, the surface of the melt-type road marking member 110 has a curved and gentle shape. If the surface of the meltable road marking member 110 is provided with a stepped shape, when a tire passes over the road marking 100, the stepped shape will place a large burden on the tires of the vehicle or the vehicle itself. Put it away.

As will be described later, since the IC tag is placed in the thick central part, increasing the thickness of the central part where the IC tag is placed prevents the IC tag from being damaged. It's evasive.

Further, the meltable road marking member 110 may be formed of meltable paint containing glass beads. More specifically, as shown in FIGS. 2A and 2B, by forming an uneven pattern in a lattice shape on the surface of the melting type road marking member 110, a melting type road marking member 110 made of meltable paint containing glass beads is formed. The visibility of the road marking member 110 is further improved.

The base member 200 is formed to be equal to or larger than the meltable road marking member 110. This is because when forming the road marking 100 with the melting type road marking member 110 and the base member 200, it is necessary to securely adhere to the road surface 20, and also because the road surface 20, the melting type road marking member 110, and the base member 200 need to be firmly fixed to the road surface 20. This reduces the possibility of gaps forming between the two. More specifically, in the melting type road marking member 110, the adhesion between the melting type road marking member 110 and the base member 200 is increased in order to prevent foreign matter from entering the notch portion described below.

Furthermore, if the base member 200 is coated with a melt-type paint similar to the melt-type paint used in the melt-type road marking member 110, the integrity will be improved, the adhesion will be improved, and production efficiency and work efficiency will be improved. This also leads to a reduction in production costs.

FIG. 3 is a cross-sectional view showing a road marking 100 according to an embodiment of the present invention installed on a road surface 20. As shown in FIG. In FIG. 3, a road marking 100 is formed on a road surface 20, and the road marking 100 includes a meltable road marking member 110 and a base member 200.

The fusion type road marking member 110 is fused and placed on the base member 200 fixed to the road surface 20. Furthermore, the melting type road marking member 110 has a notch 111 formed in a part of the side to be fused to the base member 200, and the space formed by the notch 111 is filled with an IC tag 120 and a heat-resistant A member 130 is arranged.

The IC tag 120 is a wireless electronic device that mainly transmits information to an electronic device installed in the vehicle 10, and is, for example, a wireless tag such as an RFID tag or a UHF tag. 200 degrees or higher) and strong impact.

Therefore, the heat-resistant member 130 is arranged at least between the IC tag 120 and the base member 200 so that the IC tag 120 and the base member 200 do not come into contact with each other. When fusing the melting type road marking member 110 onto the base member 200, the IC tag 120 comes into contact with a high temperature part because the melting type road marking member 110 is fused while heating and melting the base member 200. to prevent damage.

The IC tag 120 is placed in the space formed by the notch 111, and in order to protect the IC tag 120 from external foreign objects, a heat-resistant member 130 is installed to close the notch 111. is placed.

Here, as the heat-resistant member 130, urethane foam with low thermal conductivity, hardness, and elasticity is used, but the material of the heat-resistant member 130 is not limited to urethane. For example, ceramic, cork, plaster, clay, glass fiber, etc. can be used as long as the material has low thermal conductivity and can ensure the airtightness of the space of the notch 111 by arranging it so as to close the notch 111. It may be made of wood, resin, etc.

Further, the road marking 100 formed on the road surface 20 is placed in the space formed by the cutout 111 of the meltable road marking member 110 because it is subject to passing vehicles and other external impacts. It is necessary to protect the IC tag 120. On the other hand, if the IC tag 120 is submerged in water, it may not be possible to perform data communication well and may cause radio wave interference.

Therefore, it is preferable that the IC tag 120 be placed in the center of the meltable road marking member 110 in the thickness direction. More specifically, it may be arranged at a position approximately 3 mm to 6 mm from the top surface of the meltable road marking member 110 and approximately 6 mm to 10 mm from the road surface 20. As a result, even if the road marking 100 wears out, the IC tag 120 can be prevented from being exposed immediately, and even if there is heavy rain, flooding, or snow, the IC tag 120 will be submerged in water and cause radio interference. possibility can be reduced.

<Road marking construction method>
Next, a road marking construction method for constructing the road marking 100 on the road surface 20 will be described.
FIG. 4 is a flowchart showing a road marking construction method 400 for constructing the road marking 100 on the road surface 20 according to an embodiment of the present invention. The road marking construction method 400 includes a base member laying step 410, a base member heating/melting step 420, and a melting type road marking member placement step 430.

In the base member laying step 410, the base member 200 is laid on the road surface 20. The base member 200 typically has a substantially circular shape as shown in FIG. 2B, and is formed to be equal to or larger than the meltable road marking member 110. Further, the size and thickness of the base member 200 may be set as appropriate depending on the type of road marking to be placed on the road surface 20, but for example, one with a diameter of about 70 mm to 120 mm and a thickness of about 1 mm to 3 mm is used. .

In the base member heating/melting step 420, the base member 200 laid on the road surface 20 is heated and melted using, for example, a torch. As a result, the base member 200 is adhered to the road surface 20. Here, the base member 200 uses, for example, a line material resin as a so-called pavement adhesive, but a melt-type paint used for the melt-type road marking member 110 may also be applied.

In the melting type road marking member placement step 430, the melting type road marking member 110 is placed on the base member 200 that has been melted in the base member heating/melting step 420. More specifically, by placing the meltable road marking member 110 on the base member 200 while the surface of the base member 200 is melted and before hardening, the meltable road marking member 110 is placed on the base member 200. The member 110 is adhered.

Here, the melting type road marking member 110 has a notch 111 formed in a part of the side that is fused to the base member 200, and the space formed by the notch 111 is filled with an IC tag 120. is located. Although there is a risk that the IC tag 120 may be melted, damaged, or malfunctioned due to the heated/melted base member 200, the heat-resistant member 130 is arranged so as to close the notch 111. Therefore, the IC tag 120 is protected.

To reliably fix a road marking 100 composed of a melting type road marking member 110 and a base member 200 to a road surface 20 by bonding a melting type road marking member 110 to a base member 200 adhered to a road surface 20. I can do it. Furthermore, by forming the base member 200 larger in size than the melting type road marking member 110, a gap is less likely to occur between the road surface 20 and the melting type road marking member 110, and as a result, the notch Foreign matter and water from the outside are less likely to enter the space formed by the portion 111.

As described above, according to the road marking 100 and the road marking construction method 400 according to the embodiment of the present invention, the notch 111 in the melting type road marking member 110 fused to the base member 200 Since the IC tag 120 is arranged in the space, the IC tag 120 can be easily and reliably fixed to the road surface 20.

Although the meltable road marking member 110 has a substantially circular shape in this embodiment, it is not limited to this, and may have a substantially elliptical shape, for example. If the long axis of the ellipse is arranged along the center line 30, it may be possible to ensure continuity as a center line, and in addition, visibility should be taken into consideration as appropriate depending on the lot lines and stop lines in the parking lot. It doesn't matter if it has a shape.

Further, in this embodiment, the base member 200 is mainly larger than the melted road marking member 110, but the base member 200 is not limited to this, and may have the same size. Alternatively, any configuration may be used, even if the configuration is small, as long as it has good adhesion to the road surface 20 and the inside of the notch 111 is sealed.

Further, although the base member 200 is assumed to be a solid having a substantially circular shape as shown in FIG. 2B, it may be in a liquid state. In that case, a liquid base member is applied to the road surface 20, and before it hardens, the meltable road marking member 110 is placed on the base member.

Further, in the present embodiment, the heat-resistant member 130 is placed between the IC tag 120 and the base member 200 so that the IC tag 120 and the base member 200 do not come into contact with each other, but the present invention is not limited to this. Instead, the heat-resistant member 130 may be placed so as to cover the IC tag 120 placed in the notch 111. By arranging the heat-resistant member 130 to cover the IC tag 120, the IC tag 120 can be more strongly protected from external shocks, water, high temperatures, and the like.

In addition, in this embodiment, although the center line 30 formed on the road (road surface) 20 on which the vehicle 10 runs is taken as an example, the road surface marking 100 is not limited to application to such roads. For example, it may be applied to sidewalks, parking lots, and other areas where division lines or stop lines are formed.

Above, one embodiment of the present invention has been specifically described. The above description is just one embodiment, and the scope of the present invention is not limited to this one embodiment, but is to be broadly interpreted to the extent that those skilled in the art can understand.

INDUSTRIAL APPLICATION This invention can be utilized for road markings etc. which guide a moving body, Comprising: It is especially useful for road markings etc. which are equipped with an IC tag.

10 Vehicle (mobile object)
20 Road (road surface)
30 Center line 100 Road marking 110 Melting type road marking member 111 Notch portion 120 IC tag 130 Heat resistant member 200 Base member 400 Road marking construction method 410 Base member laying step 420 Base member heating/melting step 430 Melting type road marking member Placement step

Claims (10)

A road marking placed on a road surface to guide a moving object,
a base member laid on the road surface to adhere to the road surface;
a fused road marking member fused to the base member,
The melt-type road marking member includes:
a notch formed in a part of the side to be fused to the base member;
an IC tag placed in the space formed by the cutout;
and a heat-resistant member disposed to close a notch in which the IC tag is disposed. The road marking according to claim 1, wherein the heat-resistant member is disposed at least between the base member and the IC tag. 3. The road marking according to claim 1, wherein the heat-resistant member is arranged to cover an IC tag arranged in the notch. The road marking according to any one of claims 1 to 3, wherein the heat-resistant member is made of urethane. The melt-type road marking member has a substantially circular or substantially elliptical shape, and is formed to be thicker at the center than at the peripheral portion,
The road marking according to any one of claims 1 to 4, wherein the notch is formed in a central portion of the meltable road marking member. The road marking according to any one of claims 1 to 5, wherein the base member is larger than the meltable road marking member. 7. The road marking according to claim 1, wherein the surface of the melt-type road marking member has a curved shape. 8. The road marking according to claim 1, wherein the base member and the melt-type road marking member are formed of melt-type paint. 9. The road marking according to claim 1, wherein the melting type road marking member is formed of a melting type paint containing glass beads. A road marking construction method for constructing a road marking placed on a road surface to guide a moving object, the method comprising:
Laying a base member on the road surface,
Heating and melting the base member laid on the road surface,
arranging a molten road marking member on the molten base member;
The melt-type road marking member includes:
a notch formed in a part of the side to be fused to the base member;
an IC tag placed in the space formed by the cutout;
A method for constructing road markings, the method comprising: a heat-resistant member disposed to close a notch in which the IC tag is disposed.

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