KR20230144332A - System for preventing of pavement freezing using heating wire - Google Patents

Abstract

The road freezing prevention system using a heating wire consists of a carbon fiber heating wire (11) that is electrically connected to the control device (20) and generates heat by receiving an electric current, and a polymer member ( 12), a shield cable member (13) formed on the outer periphery of the polymer member (12), which is connected to the ground with the carbon fiber heating wire (11) so that the resistance value can be measured by deformation of the carbon fiber heating wire (11), and A heating wire (10) installed on the road and made of a covering member (14) that is tightly coated with the shield cable member (13); A control device 20 that is electrically connected to and controls the heating wire 10; A server 30 is connected to the control device 20 by wire or wirelessly and receives the data signal applied from the control device 20 and applies a control signal to the control device 20, and the control device 20 ) measures the resistance value of the shield cable member 13 connected to the ground and the carbon fiber heating wire 11, which is contracted or relaxed by the vibration of a vehicle passing on the road, and changes in the resistance value include traffic volume, vehicle weight, vehicle speed, The temperature and the state of the hot wires are determined, and the hot wires 10 are formed in the form of a grid or mesh, wider than the wheel width of a freight vehicle traveling on the road, and are installed on the road in two rows.

Description

System for preventing pavement freezing using heating wire}

The present invention relates to a road icing prevention system using a heat wire. More specifically, it is installed on roads including national roads, local roads, and highways to prevent road surfaces from icing due to heavy snowfall or temperature drops, allowing vehicles to drive safely. This is about a road ice prevention system using heat wires that allows this.

Roads are paved using asphalt concrete (hereinafter referred to as asphalt concrete) or cement concrete. In particular, asphalt, which is used as most road paving materials, is a mixture of asphalt and coarse aggregate (gravel), fine aggregate (sand), or paving fillers (filler, stone dust) heated or at room temperature, and has its own purpose, purpose, function, and construction method. It is divided into several categories depending on the

In general, when snow falls and freezes on the road in winter, vehicle accidents and pedestrian safety accidents may occur, so it is necessary to quickly melt the snow accumulated on the road to prevent the road from freezing.

In particular, in the case of bridges, geothermal heat does not rise compared to general ground, so freezing is more likely to occur compared to general roads under the same conditions. The entrance and exit of the tunnel, which is always shaded, is also a habitually frozen area. Also, highway interchanges have steep slopes, which can lead to serious accidents when the road surface freezes. Therefore, efforts are needed to prevent freezing in these sections on a regular basis.

In the past, chemicals such as calcium chloride were mainly sprayed to melt snow, or sand was sprinkled on roads to prevent slip accidents. However, when heavy snow suddenly falls, calcium chloride or sand must be spread directly on the road, making rapid snow melting impossible and requiring a lot of time, personnel, and equipment. In addition, calcium chloride can corrode vehicles or facilities after spraying, and depending on the amount of snowfall, it is difficult to expect a rapid snow melting effect.

Another road snow melting method applied in the past was an attempt to melt snow using electrical energy by burying a heating element such as a heating wire at a depth of 5 cm or more below the surface of the captive pavement. However, since the conventional heating element is buried at a depth of 5 cm or more below the surface, excessive electricity is consumed to melt the snow accumulated on the surface of the road pavement. In addition, in order to install on an existing road or maintain an existing one, the road must be dug up by more than 5cm before installation or repair, which causes significant damage to the road. Therefore, actual application was minimal.

As a prior art to solve the above problems, Republic of Korea Patent Publication No. 10-2007-0055977, Road Snow Melting Device (publication date: May 31, 2007) is disclosed.

The road snow melting device includes a heating packaging material filled in a portion of the surface of the surface pavement of the road, a wire that supplies power to the heating packaging material, and a control unit connected to the power source to control the amount of heat generated by the heating packaging material, and adjusting the temperature of the road. It further consists of a temperature detection sensor that detects and transmits to the control unit, and a snow detection sensor that detects whether there is snow on the road and transmits it to the control unit. The control unit generates the heating packaging material according to the signals transmitted from the temperature detection sensor and the snow detection sensor. Adjust the calorific value. Therefore, snow accumulated on the road during winter is automatically melted to prevent the snow accumulated on the road from freezing. And, by being located on the surface of the heating package, it is possible to not only save the electrical energy required for snow melting, but also reduce damage to the road during installation and maintenance.

The prior literature composed as described above is configured to automatically melt snow accumulated on the road in winter by forming a groove in the surface pavement of the road and installing a heat-generating packaging material inside it, but this configuration consists of a surface pavement material and a heat-generating packaging material. Because the bonding strength is reduced due to the inflow of melted snow or rainwater, the heating packaging material is separated from the surface packaging material, and this separation causes the heating packaging material to be easily damaged by vehicles driving on the road.

In addition, there is a problem that damaged heating packaging material impairs the safe operation of vehicles driving on the road.

Republic of Korea Patent Publication No. 10-2007-0055977, Road snow melting device (Publication date: May 31, 2007)

In order to solve the above problems, the present invention is installed on roads including national roads, local roads, and highways, and uses heat wires to prevent road surfaces from icing due to heavy snowfall or temperature drops, allowing vehicles to drive safely. Provides an anti-icing system.

In addition, the present invention measures the resistance value of the shield cable member connected to the carbon fiber heating wire and the ground to determine the traffic volume, vehicle weight, vehicle speed, temperature, and heating wire condition according to the change in resistance value, thereby preventing melting and freezing in optimal conditions. Provides a road icing prevention system using heat wires to prevent .

In addition, the present invention is a heating wire that is installed on the road in two rows wider than the wheel width of a freight vehicle in a zigzag form using a grid, mesh, or single line to prevent black ice from forming due to snow or melting ice accumulated on the road. Provides a road ice prevention system using .

As an example, a road ice prevention system using a heating wire includes a carbon fiber heating wire that is electrically connected to a control device and generates heat by receiving an electric current, a polymer member mixed with carbon powder that is in close contact with and coats the carbon fiber heating wire, and a carbon fiber heating wire. A heating wire installed on the road, which is connected to a carbon fiber heating wire and a ground connection so that the resistance value can be measured by deformation, and is made up of a shield cable member formed on the outer periphery of the polymer member and a covering member that is tightly coated with the shield cable member; a control device that is electrically connected to and controls the heating wire; A server connected to the control device by wire or wirelessly to receive data signals applied from the control device and apply control signals to the control device, wherein the control device contracts or relaxes due to vibration of a vehicle passing on the road. By measuring the resistance value of the shield cable member connected to the ground and the carbon fiber heating wire, the traffic volume, vehicle weight, vehicle speed, temperature, and status of the heating wire are determined according to the change in resistance value. The heating wire is formed in the form of a grid or mesh and is driven on the road. It is formed to be wider than the wheel width of a freight vehicle and is installed on the road in two rows.

The hot wires of the road ice prevention system using hot wires are installed in two rows on the road in a zigzag shape using one line, wider than the wheel width of a freight vehicle.

The road ice prevention system using a heat wire according to the present invention is installed on roads including national roads, local roads, and highways to prevent road surfaces from icing due to heavy snowfall or temperature drops, allowing vehicles to drive safely. have

In addition, the present invention measures the resistance value in the control device through a shield cable member connected to the carbon fiber heating wire and the ground, and allows the server to determine the traffic volume, vehicle weight, vehicle speed, temperature, and heating wire status according to the change in resistance value, thereby providing optimal operation. It has the effect of promoting safe operation of the vehicle by allowing melting or preventing freezing in the condition of.

In addition, the present invention is installed in two rows on the road in a zigzag form using a grid, a net, or a single line, so that it is wider than the wheel width of a freight vehicle to prevent black ice from forming due to snow or melting ice accumulated on the road. It has the effect of

Figure 1 is a diagram showing a road ice prevention system using a hot wire according to the present invention.
FIG. 2 is an enlarged view showing the structure of the heating wire shown in FIG. 1.
Figure 3 is a diagram showing a first embodiment in which the hot wires of the road ice prevention system using hot wires according to the present invention are applied to the road.
Figure 4 is a diagram showing a second embodiment of the road ice prevention system using hot wires according to the present invention in which the hot wires are applied to the road.
Figure 5 is a diagram showing a third embodiment of the road ice prevention system using hot wires according to the present invention in which hot wires are applied to the road.
Figure 6 is a diagram showing a fourth embodiment of the road ice prevention system using hot wires according to the present invention in which the hot wires are applied to the road.

The present invention described below can be modified in various ways and can have various embodiments. Specific embodiments will be illustrated in the drawings and described in detail in the detailed description.

However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all transformations, equivalents, and substitutes included in the spirit and technical scope of the present invention. In describing the present invention, if it is determined that a detailed description of related known technologies may obscure the gist of the present invention, the detailed description will be omitted.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Additionally, terms such as first and second may be used to separately describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

In addition, when at least two different embodiments are described in the present application, all or part of the components of each embodiment can be merged and used interchangeably without departing from the technical spirit of the present invention. .

Figure 1 is a diagram showing a road ice prevention system using a hot wire according to the present invention. FIG. 2 is an enlarged view showing the structure of the heating wire shown in FIG. 1. Figure 3 is a diagram showing a first embodiment in which the hot wires of the road ice prevention system using hot wires according to the present invention are applied to the road. Figure 4 is a diagram showing a second embodiment of the road ice prevention system using hot wires according to the present invention in which the hot wires are applied to the road. Figure 5 is a diagram showing a third embodiment of the road ice prevention system using hot wires according to the present invention in which hot wires are applied to the road. Figure 6 is a diagram showing a fourth embodiment of the road ice prevention system using hot wires according to the present invention in which the hot wires are applied to the road.

Referring to Figures 1 to 6, the melting hot wire of the present invention includes a carbon fiber heating wire (11) that is electrically connected to the control device (20) and generates heat by receiving an electric current; A polymer member (12) mixed with carbon powder that is in close contact with and covers the carbon fiber heating wire (11); A shield cable member (13) formed on the outer periphery of the polymer member (12) and connected to the carbon fiber heating wire (11) and ground so that the resistance value can be measured; It is characterized by consisting of a heating wire (10) including a covering member (14) that is covered in close contact with the shield cable member (13).

The road ice prevention system using a heat wire for preventing melting and freezing of snow on the road using the melting heat wire configured as described above includes a carbon fiber heating wire (11), a polymer member (12), and a shield cable member (13). ) and a heating wire (10) installed on the road and including a covering member (14); A control device (20) electrically connected to and controlled by the heating wire (10); And a server 30 connected to the control device 20 by wire or wirelessly to receive the data signal applied from the control device 20 and apply a control signal to the control device 20.

The road ice prevention system using a hot wire and a melting hot wire (hereinafter referred to as 'heat wire') according to the present invention will be described in detail with the accompanying drawings.

The road icing prevention system using a hot wire of the present invention includes a hot wire 10 installed on the road, a control device 20 that controls the hot wire 10, and a server 30.

The heating wires 10 are installed in two rows on the road in a zigzag form using a grid, net, or single line to prevent melting or freezing of snow accumulated on the road (black ice, etc.). The heating wire 10 is installed wider than the width of the truck with the widest wheels among vehicles passing on the road.

The heating wire 10 is electrically connected to the control device 20 and consists of a carbon fiber heating wire 11 that receives electric current and generates heat, and a polymer member 12 mixed with carbon powder that is in close contact with and coats the carbon fiber heating wire 11. ), and a shield cable member (13) formed on the outer periphery of the polymer member (12) so as to make a ground connection with the carbon fiber heating wire (11) and measure the resistance value together with the carbon fiber heating wire (11); It consists of a covering member (14) that is coated in close contact with the shield cable member (13).

The control device 20 applies current to the heating wire to measure the resistance value of the carbon fiber heating wire 11 and the shield cable member 13, and determines the traffic volume, vehicle weight, vehicle speed, temperature, and hot wire status according to the change in resistance value. judge.

In other words, when vibration caused by a vehicle traveling on the road occurs while current is applied to the carbon fiber heating wire 11, the carbon (including polymer) particles are compressed and relaxed due to the vibration pressure, thereby increasing electrical resistance. The resistance value of the shield cable member 13 that is connected to the carbon fiber heating wire 11 and is grounded is measured by the control device 20 to determine vehicle traffic volume, vehicle weight, vehicle speed, temperature, and heating wire. Allows detection of status, etc.

In other words, when a vehicle passes, a change in vibration occurs due to pressure, and due to this vibration, the particles are quickly compressed and relaxed, changing the electrical resistance value. By comparing and analyzing the existing data with the microcomputer of the control device, the traffic volume of the vehicle, Weight, vehicle speed, temperature, and heating condition can be analyzed in the control device.

Although not shown in the drawing, the control device 20 includes a microcomputer for analyzing resistance values, a power circuit unit electrically connected to the microcomputer to apply current to the carbon fiber heating wire 11 or receive commercial current, and a first It includes a memory that stores the data of the set resistance value and the driving program for driving the microcomputer, and a communication circuit unit that is electrically connected to the microcomputer to enable wired or wireless communication. The microcomputer, power circuit unit, memory, and communication circuit unit are mounted on one PCB, and a microcomputer that analyzes signal values can be added depending on the location of the sensor. Additionally, a battery may be included as needed. In other words, when the commercial power supply is disconnected, the battery sends an event signal to the server indicating that the resistance value cannot be measured because the microcomputer does not receive commercial power, allowing this to be detected from a remote location.

The above microcomputer, power circuit unit, memory, and communication circuit unit are explained as an example, and are not limited to this configuration, and the configuration may vary depending on the circumstances of the manufacturer.

And the microcomputer applies a data signal according to the change in resistance value to the server 30, or measures the resistance value set by the program and the currently measured deformation of the carbon fiber heating wire 11 through the shield cable member 13. When a change in resistance value is detected, current is automatically applied to the heating wire 10 to generate heat, thereby preventing icing on the road.

In other words, the method of applying current to the hot wire of the road is through the control device 20, or the manager determines the situation on site at the server 30 and applies a control signal to the control device 20 to generate heat. can do.

The server 30 is connected to the control device 20 by wire or wirelessly, and analyzes data signals received from the control device 20 to enable the manager to determine the status of the site.

For example, as the temperature at the site where the heating wire 10 is installed decreases, the change in resistance value due to shrinkage of the carbon fiber heating wire 11 is measured by the control device 20 through the shield cable member 13, and the data signal is sent to the server. When it is applied to (30), the server 30 compares and judges this with existing data and applies a control signal to the control device 20 to apply current to the heating wire 10 installed on the road to prevent icing on the road. Let it happen.

The state in which the heating wire configured as above is installed on the road will be described for each embodiment.

Embodiment 1

As shown in FIG. 3, the heating wire 10 is formed in a mesh shape wider than the width of the tire, and a power wire (unmarked) is connected to the edge of the mesh shape to be electrically connected to the control device 20.

The heating wire 10 installed in the form of a mesh does not block the current applied from the control device 20 even if it is disconnected at any part or intermittently, thereby preventing melting or freezing of the eyes.

Since this net shape forms a narrow gap between the heating wires 10, melting or freezing of snow accumulating on the road is easily prevented. In addition, the heating wire installed in the form of a net prevents melting and freezing around the area, including the area where the heating wire is installed.

Second embodiment

As shown in FIG. 4, the heating wire 10 is formed in a grid pattern or a well-shaped shape wider than the width of the tire, and a power line (unmarked) is connected to the edge of the grid pattern or a well-shaped shape to connect the control device 20. ) and installed electrically.

The heating wire 10 installed in the grid pattern or well shape does not block the current applied from the control device 20 even if the wire is disconnected at any part or intermittently, thereby preventing snow from melting or freezing.

Since this net shape has a wider spacing than the net shape shown in FIG. 3 between the heating wires 10 and 10, it is not only easy to install the heating wires 10 on the road, but also wider than the tire width when the vehicle is driving. Because it is installed, it effectively prevents melting or freezing of snow accumulating on the road, helping to ensure safe driving of vehicles.

Third embodiment

As shown in FIG. 5, at least three heating wires 10 are installed in the longitudinal direction at regular intervals around the road, and a heating wire 10 is installed in the horizontal direction between the three or more heating wires 10 installed in the longitudinal direction. ) is installed. The heating wires 10 installed in the horizontal direction are installed so that their positions do not overlap each other to facilitate melting of snow accumulated on the road or to prevent freezing.

Among the three or more heating wires 10, the heating wire 10 installed at the edge is electrically connected to the control device 20 and a power line (unmarked) so that current can be applied.

The form in which the heating wire 10 is installed as in the third embodiment has the advantage of being easier to install on the road as well as lower installation costs than the first and second embodiments.

Embodiment 4

As shown in Figure 6, a single heating wire 10 is installed on the road in a zigzag shape wider than the tire width.

And the heating wire 10 is connected to the control device 20 by a power wire (unmarked) so as to be electrically connected.

As in the fourth embodiment, when installing the heating wires 10 on the road, the spacing is made uniform to facilitate melting of snow accumulated on the road or to prevent freezing to ensure safe driving of the vehicle.

In the fourth embodiment, since the heating wire 10 is formed as a single line in a zigzag shape, the heating wire is intermittently installed in the longitudinal direction around the road to prevent heat dissipation when the wire is disconnected, and a control device ( It is desirable to prevent the current supplied from 20) from being blocked.

The road icing prevention system using a hot wire of the present invention is not limited to the first to fourth embodiments, but is explained as an example, and is installed on the road in a form other than the above to prevent snow removal or icing. make it possible

The process of preventing icing on the road through the road icing prevention system using the hot wire of the present invention installed as described above will be described.

First, the heating wire 10 of the present invention is installed on the road and electrically connected to the control device 20 so that current can be applied, and the control device 20 is connected to a commercial power source. The control device 20 is not limited to commercial power, and can receive current generated by solar energy or the like and supply it to the heating wire 10.

The heating wire 10 is installed in a predetermined area of the road, especially on both ends of a tunnel, in an area where icing may occur on a day when it snows or when the temperature drops, such as a shady curved road, a sloping road, a bridge, etc., or in an existing area where icing may occur ( It is installed in areas where vehicle accidents frequently occur due to black ice, etc.

As described above, when the temperature in the control device 20 decreases with the heating wire 10 installed on the road, the carbon fiber heating wire 11 contracts and a resistance value different from the normal resistance value contacts the carbon fiber heating wire 11. It is measured by the control device 20 through the connected shield cable member 13, and the control device 20 applies a data signal to the server 30 through these measured values.

The server 30 compares the data value applied from the control device 20 with existing data to determine the current temperature. If the temperature measured by the resistance value is determined to be a temperature at which the road may be frozen, the server 30 applies a control signal to the control device 20 to supply current to the heating wire 10.

The control device 20 analyzes the control signal applied from the server 30 and supplies current to the heating wire 10 to prevent melting of snow or icing of the road due to heat generation.

In addition, in normal times, the traffic volume of vehicles on the road, vehicle weight (overload), vehicle speed, and heating condition are measured.

The analysis of the vehicle traffic volume indicates that the carbon fiber heating wire 11 is deformed momentarily due to pressure (or vibration) applied by the vehicles, and the shield cable member 13 is connected to the carbon fiber heating wire 11 and the ground. ), the control device 20 measures the resistance value, and based on the measured resistance value, the current vehicle density is determined and applied to the server 30.

In addition, the weight of the vehicle can be measured by measuring the change in resistance value according to the weight of the vehicle applied by the vehicle passing through a predetermined area where the heating wire 10 is installed by the control device 20 to determine the overloading state.

In other words, the highway law stipulates that only vehicles with a total load of 44 tons or less can pass, with a load of 10% or less based on an axle load of 10 tons.

However, the load measured at the toll gate is measured as the axle load and total load with the vehicle speed as low as possible to minimize vehicle vibration, so the weight applied from the vehicle when driving cannot be clearly determined, leading to damage to the road. Problems (potholes, etc.) occur.

However, since the present invention measures the weight applied to the road while the vehicle is in operation, it has the advantage of being able to determine the overloading state by measuring the weight according to the operation of the vehicle.

In addition, the speed of the vehicle is measured by the control device 20 measuring the resistance value generated when the vehicle's wheel that passes one hot wire 10 passes another hot wire 10, and the time according to the measured resistance value is measured. You can determine what the current speed of the vehicle is.

In addition, to check the disconnection state of the hot wire (10), if it is determined that the resistance value measured at the shield cable member (13) connected to the carbon fiber heating wire (11) and the ground when it is first installed on the road is the same as the currently measured resistance value, the hot wire (10) is disconnected. It is determined that there is no disconnection in (10).

However, if the resistance value measured in a state where no vehicles are passing on the road is different from the initially measured resistance value, it is determined that a disconnection has occurred in the heating wire 10, and repair is not possible. decide

As described above, in the past, workers measured the resistance value at the site where the heating wire was installed using separate equipment, but in the present invention, the resistance value is measured and applied in real time from the control device 20, so the worker does not have to go to the site directly. There is an advantage of being able to check the status of (10) from a remote location.

As explained above, the existing heating wire was used only to prevent icing of the road by simply generating heat, but the heating wire 10 of the present invention not only prevents icing of the road, but also reduces the amount of traffic and vehicle weight passing on the road. , vehicle speed, and disconnection status of the heating wire 10 can be determined, so there is an advantage in that the efficiency of using the heating wire 10 is very high.

As described in detail above, the road ice prevention system using a heat wire according to the present invention is installed on roads including national roads, local roads, and highways to prevent road surfaces from icing due to heavy snowfall or temperature drops, thereby preventing vehicles from freezing. It has the effect of enabling safe driving.

In addition, the present invention measures the resistance value in the control device through a shield cable member connected to the carbon fiber heating wire and the ground, and allows the server to determine the traffic volume, vehicle weight, vehicle speed, temperature, and heating wire status according to the change in resistance value, thereby providing optimal operation. It has the effect of promoting safe operation of the vehicle by allowing melting or preventing freezing in the condition of.

In addition, the present invention is installed in two rows on the road in a zigzag form using a grid, a net, or a single line, so that it is wider than the wheel width of a freight vehicle to prevent black ice from forming due to snow or melting ice accumulated on the road. It has the effect of

Meanwhile, the embodiments disclosed in these drawings are merely provided as specific examples to aid understanding, and are not intended to limit the scope of the present invention. It is obvious to those skilled in the art that in addition to the embodiments disclosed herein, other modifications based on the technical idea of the present invention can be implemented....

10...heating wire 11...carbon fiber heating wire
12... polymer member 13... shield cable member
14...covering member 20...control device
30: server

Claims (2)

A carbon fiber heating wire that is electrically connected to a control device and generates heat by receiving current. A polymer member mixed with carbon powder that adheres closely to and covers the carbon fiber heating wire. A carbon fiber heating wire that allows resistance values to be measured by deformation of the carbon fiber heating wire. A heating wire installed on the road, which is connected to the ground and is made up of a shield cable member formed on the outer periphery of the polymer member and a covering member that is tightly coated with the shield cable member;
a control device that is electrically connected to and controls the heating wire;
It includes a server that is connected to the control device by wire or wirelessly and receives data signals applied from the control device and applies control signals to the control device,
The control device measures the resistance value of the carbon fiber heating wire that contracts or relaxes due to the vibration of the vehicle passing on the road and the shield cable member connected to the ground, and changes in the resistance value determine the traffic volume, vehicle weight, vehicle speed, temperature, and heating wire status. judge,
The hot wires are formed in the form of a grid or mesh and are wider than the wheel width of a freight vehicle traveling on the road, and are installed on the road in two rows. A road ice prevention system using hot wires. According to paragraph 1,
The hot wire is a road ice prevention system using a hot wire that is installed in two rows on the road in a zigzag shape using a single line wider than the wheel width of a freight vehicle.