KR102479871B1 - Driving guide system for roundabout - Google Patents

Abstract

The present invention relates to a driving guide system for a roundabout and, more specifically, to a driving guide system for a roundabout, which displays information necessary for an operation of a roundabout on at least one access road entering the roundabout to help vehicles drive in the roundabout. According to the present invention, the driving guide system for a roundabout includes an access road mark assigned to a plurality of access roads departing from a roundabout and an access road mark allocated to each lane of the plurality of access roads entering the roundabout, wherein the access road mark may include information on how to operate the roundabout.

Description

Roundabout operation guidance system {DRIVING GUIDE SYSTEM FOR ROUNDABOUT}

The present invention relates to a roundabout operation guidance system.

More specifically, the present invention relates to a roundabout operation guidance system for assisting vehicles in driving a roundabout by displaying information necessary for operation of a roundabout on at least one access road entering the roundabout.

Various traffic safety facilities are being installed and operated to ensure traffic safety. Among them, in the case of a general signalized intersection, waiting time for the signal is long, which affects traffic such as traffic congestion, and there is a high possibility of a large-scale accident caused by a vehicle violating the signal.

As part of a method to overcome the disadvantages of these general signalized intersections, roundabouts and the like are widely implemented in many countries including the Republic of Korea.

A roundabout is a one-way road operating system in which vehicles turn in one direction around a traffic island located in the center and exit in the desired direction.

Specifically, in a roundabout, a rotational vehicle that has already entered the intersection has priority.

Based on the right-hand traffic method of the road, vehicles that want to enter the roundabout can enter the roundabout in a counterclockwise direction after the roundabout has passed. can run

Roundabouts can be applied even when the number of passing vehicles is sufficiently small, and in this case, installation and operating costs of traffic lights can be reduced.

On the other hand, there is a problem that operation may be relatively difficult compared to general intersections at roundabouts where traffic lights are not installed.

For example, a vehicle rotating within a roundabout may be confused as to which exit route to use to leave the roundabout, or be confused as to which lane to follow.

As a prior art for roundabouts, Korean Patent Registration No. 10-1601958 (filed on October 14, 2014, title of invention: roundabout operation device considering saturation by approach and its method) [Document 1] It includes a technical configuration that controls the traffic of entering and exiting vehicles by considering the degree of saturation for each approach.

In the prior art according to Document 1, there is a problem in that the cost may be excessively increased compared to the case of installing traffic lights because the degree of saturation for each access road must be calculated in real time.

[Document 1] Republic of Korea Patent Registration No. 10-1601958

An object of the present invention is to provide a roundabout operation guidance system that helps vehicles to operate in a roundabout by displaying information necessary for operation of a roundabout on an access road.

Another object of the present invention is to provide a roundabout operation guidance system that assists vehicles to operate at a roundabout by matching a mark displayed on an access road corresponding to a roundabout and a mark displayed on an exit road.

A roundabout operation guidance system according to the present invention includes an access road mark assigned to a plurality of access roads departing from a roundabout and an access road mark allocated to each lane of the plurality of access roads entering the roundabout, and the access road The mark may include information on how to operate the roundabout.

In addition, the access road mark further includes a matching mark that matches the at least one exit road mark, the at least one access road includes a plurality of lanes, and the last lane among the plurality of lanes The matching mark assigned to is matched with the exit route mark assigned to the first exit route to the right among the plurality of exit routes, and the matching mark assigned to the first lane among the plurality of lanes corresponds to the exit route mark assigned to the plurality of exit routes. It may be matched with the entry route mark assigned to the first entry route to the left of the route.

In addition, a first road, a second road, a third road, and a fourth road are connected to the roundabout, and the first road includes a first exit road departing from the roundabout and a first access road entering the roundabout. The second road includes a second access road departing from the roundabout and a second access road entering the roundabout, and the third road includes a third access road departing from the roundabout and the second access road A third access road entering the roundabout, the fourth road including a fourth exit road departing from the roundabout and a fourth access road entering the roundabout, wherein the first exit road includes a first exit road A Roman mark is assigned, a second entry route mark is assigned to the second entry route, a third entry route mark is assigned to the third entry route, and a fourth entry route mark is assigned to the fourth entry route. , The first access road includes 1 lane, 2 lanes, 3 lanes and 4 lanes, a first matching mark that matches the first exit road mark is assigned to the 1 lane, and the 4 exit road mark is assigned to the 2 lanes. A second matching mark matching the Roman mark is assigned, a third matching mark matching the third exit route mark is assigned to the third lane, and a fourth matching mark matching the second entry route mark is assigned to the fourth lane. Marks can be assigned.

In addition, the matching mark may include at least one first light-emitting unit that emits light in response to supplied power, and the exit route mark may include at least one second light-emitting unit that emits light in response to supplied power.

The power supply unit may further include a power supply unit supplying power to the light emitting unit, and the power supply unit may include at least one solar cell that generates electricity from sunlight, and the power supply unit may be connected to a traffic island of the roundabout. can be located

In addition, a plurality of camera units installed on the traffic island and taking images corresponding to each of the access roads, an entry detection unit analyzing the images captured by the camera unit and detecting the entry of a vehicle into the roundabout, and the entry detection unit A determination unit for discriminating the matching mark corresponding to the detected entering vehicle and discriminating the outgoing road mark matching the determined matching mark, wherein the power supply unit determines the matching mark determined by the determination unit. Light may be emitted by supplying power to the first light emitting part and the second light emitting part of the advance route mark, respectively.

The roundabout operation guidance system according to the present invention has an effect of effectively helping vehicles to pass through the roundabout at a sufficiently low cost.

1 to 6 are diagrams for explaining a first embodiment of a roundabout driving guidance system according to the present invention.
7 to 12 are diagrams for explaining a second embodiment of a roundabout driving guidance system according to the present invention.

Hereinafter, a roundabout operation guidance system according to the present invention will be described in detail with reference to the accompanying drawings.

Since the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. This is not intended to limit the present invention to specific embodiments, and it can be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention.

In describing the present invention, terms such as first and second may be used to describe various components, but the components may not be limited by the terms. The term may only be used for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention.

The term “and/or” can include a combination of a plurality of related recited items or any one of a plurality of related recited items.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected or connected to the other component, but other components may exist in the middle. can be understood On the other hand, when an element is referred to as “directly connected” or “directly connected” to another element, it may be understood that no other element exists in the middle.

Terms used in this document are only used to describe specific embodiments and are not intended to limit the present invention. Singular expressions may include plural expressions unless the context clearly dictates otherwise.

In this document, the terms "include" or "having" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features It may be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

Unless defined otherwise, all terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries may be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present application, interpreted in an ideal or excessively formal meaning. It may not be.

In addition, the embodiments disclosed in this document are provided to more completely explain the embodiments to those skilled in the art, and the shapes and sizes of elements shown in the drawings may be exaggerated for clearer explanation.

In describing the present invention in this document, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description may be omitted.

Various embodiments described in this document may be implemented in a recording medium readable by a computer or similar device using software, hardware, or a combination thereof.

According to hardware implementation, embodiments of the present invention include application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), It may be implemented using at least one of processors, controllers, micro-controllers, microprocessors, and electrical units for performing functions.

Meanwhile, according to software implementation, embodiments such as procedures or functions in the present invention may be implemented together with a separate software module that performs at least one function or operation.

1 to 6 are views for explaining a roundabout operation guidance system according to the present invention.

Referring to FIG. 1 , an exit road mark OMK may be allocated to at least one access road OR connected to a roundabout 1, and an access road mark IMK may be allocated to at least one access road IR. there is.

In the present invention, a right-hand driving method in which a vehicle drives using the right side of the road will be described as a standard. It may also be possible that the present invention is applied to a left-hand drive system.

The roundabout 1 may be located at a point where at least three roads RD intersect.

A traffic island (ISD) may be located at the center of the roundabout (1).

Vehicles operating on the roundabout 1 can rotate around the traffic island (ISD).

In the present invention, a case where the roundabout 1 is located at a point where four roads intersect is described as an example, but the present invention may not be limited thereto. For example, the roundabout driving guidance system according to the present invention can also be applied to a roundabout 1 where three roads intersect or a roundabout 1 where five or more roads intersect.

As shown in FIG. 1 , the roundabout 1 may be located at a point where the first road RD1 , the second road RD2 , the third road RD3 , and the fourth road RD4 intersect.

Here, an access road mark IMK may be assigned (installed or displayed) to the access roads IR of the first road RD1, the second road RD2, the third road RD3, and the fourth road RD4, respectively. there is.

In addition, OMKs are allocated (installed and displayed) to the exit routes OR of the first road RD1, the second road RD2, the third road RD3, and the fourth road RD4. It can be.

The entrance road mark IMK and the exit road mark OMK may be installed (displayed) to the extent that a driver riding in the vehicle can identify them.

The access road mark IMK may be installed (displayed) on the road floor of the access road IR so as not to interfere with the vehicle driver's acquisition of information.

The access road mark IMK may include information on how to operate the roundabout 1.

For example, the access road mark IMK may include information notifying that a rotating vehicle has priority in the roundabout 1, information about a temporary stop, and the like.

The exit route mark OMK may include geographical information corresponding to the corresponding route.

For example, the entry route mark OMK may include information about a place that can be reached using the corresponding route.

In FIG. 1, it is described that numbers such as 1, 2, 3, and 4 are sequentially assigned to the right to the exit road mark OMK, but the present invention may not be limited thereto.

For example, it may be possible to sequentially assign the exit road mark OMK to the left, or to give priority to a horizontal road and then assign it to a longitudinal road.

Alternatively, it may be possible for the entry road mark OMK to include letters such as alphabets instead of numbers.

Alternatively, the entry road mark OMK may also include symbols such as arrows.

In this way, any approach mark OMK may be applied as long as it is easily identifiable by the driver of the vehicle.

On the other hand, when the access road IR entering the roundabout 1 includes a plurality of lanes, the access road mark IMK further includes a matching mark (MMK) assigned to each lane of the access road IR can include

Here, the matching mark MMK may be matched to at least one exit route mark OMK.

For example, as in the case of FIG. 2 , let's assume a case where the access road IR of the first road RD1 connected to the roundabout 1 includes a plurality of lanes.

In this case, the matching mark MMK (2) allocated to the last lane (three lanes) among the plurality of lanes of the access road IR of the first road RD1 is the first exit road to the right among the plurality of exit routes OR. (OMK), that is, it may be matched with the exit route mark (OMK, ②) allocated to the exit route OR of the second road RD2.

In this case, the driver of the vehicle entering the last lane of the first road (RD1), that is, the third lane, checks the matching mark (MMK, ②) displayed on the third lane, and uses it to determine the exit route (OR), that is, The exit route OR of the second road RD2 can be easily grasped.

In addition, the matching marks MMK (①④) allocated to the first lane (lane 1) among the plurality of lanes of the access road IR of the first road RD1 are the first exit road to the left at least among the plurality of exit roads, that is, It is possible to match the exit route mark ① assigned to the exit route OR of the first road RD1.

Alternatively, the matching mark MMK (①④) allocated to the first lane (first lane) of the plurality of lanes of the access road IR of the first road RD1 is the second exit road to the left at least among the plurality of exit roads, that is, It is possible to match the exit route mark ④ assigned to the exit route OR of the fourth road RD1.

As such, it is possible to simply notify the driver of the vehicle of information about the corresponding exit route OR for each lane of the entry road IR as the matching mark MMK.

In this case, even drivers (new drivers, etc.) who are not familiar with roundabouts can find and proceed to the exit route (OR) corresponding to the matching mark, so driving at the roundabout can be helpful.

To describe the matching mark MMK in more detail, as shown in FIG. 3, the first road RD1, the second road RD2, the third road RD3, and the fourth road RD1 at the roundabout 1 The road RD4 intersects, the second road RD2 is adjacent to the right side of the first road RD1, the third road RD3 is adjacent to the right side of the second road RD2, and the fourth road ( Assume that RD4) is adjacent to the right side of the third road RD3 and the access road IR of the first road RD1 includes four lanes (lanes 1, 2, 3, and 4).

In this case, the first road RD1 may include a first access road OR1 departing from the roundabout 1 and a first access road IR1 entering the roundabout 1 .

Here, the first entry road mark ① may be assigned to the first entry route OR1.

In addition, the second road RD2 may include a second access road OR2 departing from the roundabout 1 and a second access road IR2 entering the roundabout 1 .

Here, a second exit route mark (②) may be assigned to the second entry route OR2.

The third road RD3 may include a third access road OR3 departing from the roundabout 1 and a third access road IR3 entering the roundabout 1 .

Here, a third exit route mark ③ may be assigned to the third exit route OR3.

The fourth road RD4 may include a fourth access road OR4 departing from the roundabout 1 and a fourth access road IR4 entering the roundabout 1 .

Here, the fourth exit route mark ④ may be assigned to the fourth exit route OR4.

In this case, a first matching mark ① that matches the first exit road mark ① may be assigned to the first lane of the first access road IR1 of the first road RD1.

In addition, the second matching mark (④) matched with the fourth exit road mark (④) is assigned to the second lane, and the third matching mark (③) matched with the third exit route mark (③) is assigned to the third lane. and a fourth matching mark (②) matching the second advance road mark (②) may be assigned to the 4 lanes.

In this case, the driver of the vehicle can easily operate the roundabout 1 in the form of a crossroad.

Meanwhile, the matching mark MMK and the exit route mark OMK may include at least one light emitting element that emits light by supplied power.

In detail, the matching mark MMK may include at least one first light emitting part LEP1 that emits light by supplied power.

In addition, the exit route mark OMK may include at least one second light emitting part LEP2 emitting light according to supplied power.

In this case, even at night when the surroundings are dark, information necessary for driving the roundabout 1 can be easily transmitted to the driver of the vehicle.

At least one of the first light emitting part LEP1 and the second light emitting part LEP2 may be installed on a road surface.

For example, as shown in (A) and (B) of FIG. 4 , the first light emitting part LEP1 and the second light emitting part LEP2 are installed on the road RD and are easily identified by a vehicle driver. It may protrude a predetermined height D1 from the road surface of the road RD.

In addition, as shown in (B) of FIG. 4, the first light emitting part LEP1 and the second light emitting part LEP2 protrudes from the road surface of the road RD by the rear cover BK, the light emitting element ( LED) and a transparent cover (TC).

The rear cover (BK) may include a metal material or a plastic material having sufficiently strong strength.

The rear cover BK may be substantially opaque and may not transmit light.

The rear cover BK may sufficiently protect the light emitting device (LED) and predetermined parts for operating the light emitting device (LED), although not shown.

The light emitting element (LED) may emit light by supplied power.

The light emitting device (LED) includes a red light emitting device (R) for emitting red (R) light, a green light emitting device (G) for emitting green (G) light, and a blue light emitting device (G) for emitting blue (B) light. It may include element (B).

In this case, the first light emitting part LEP1 and the second light emitting part LEP2 may implement various colors of light by combining red (R) light, green (G) light, and blue (B) light.

The transparent cover TC may include a material that transmits light, for example, a transparent resin material.

The transparent cover TC may cover at least a portion of the light emitting device LED.

Accordingly, light generated from the light emitting device (LED) may pass through the transparent cover (TC) and be emitted to the outside.

The width D3 of the transparent cover TC may be smaller than the width D2 of the back cover BK.

In addition, the transparent cover TC may include a portion whose surface is inclined at a predetermined angle θ.

In this case, it is possible to suppress or prevent the transparent cover TC from being damaged or worn due to a collision with a wheel of a vehicle.

The transparent cover TC may face a direction in which a vehicle enters.

The entry direction of the vehicle is indicated by an arrow in the drawing.

On the other hand, it is possible that the exit road mark OMK can be formed on a road sign.

For example, as shown in (A) and (B) of FIG. 5, the entry road mark OMK is formed on a part of the road sign BRD installed on the road OR of the road RD. It is possible.

In this case, as shown in (B) of FIG. 5, the exit road mark OMK may be attached to the road sign BRD.

For example, the exit route mark OMK may include a substrate portion SBT and a second light emitting portion LEP2 disposed on the substrate portion SBT.

The second light emitting part LEP2 may receive power from a power source (not shown) through the substrate part SBT.

In addition, the second light emitting part LEP2 may include at least one light emitting element LED disposed on the substrate part SBT and a dome cover TCD having a dome shape covering the light emitting element LED. there is.

The dome cover TCD may include a transparent material that transmits light generated from the light emitting device LED. For example, the dome cover TCD may include a transparent resin material.

In this case, it is possible to install the mark OMK by a simple method of separately manufacturing the mark OMK and attaching the mark OMK to the road sign BRD.

Meanwhile, it is possible that the power supply unit for supplying power to at least one of the first light emitting unit LEP1 and the second light emitting unit LEP2 includes at least one solar cell that generates electricity with sunlight. .

For example, as shown in FIG. 6 , a solar panel SLC including at least one solar cell may be disposed on the traffic island ISD of the roundabout 1 .

A solar panel (SLC) may be included in the power supply.

In this case, it is possible to effectively drive the first light emitting unit LEP1 and the second light emitting unit LEP2 even in rural areas where traffic is relatively low.

For example, in rural areas where traffic is excessively low, installing traffic lights may be costly. In addition, even if the first light emitting part (LEP1) and the second light emitting part (LEP2) are used, it is also possible to install a separate power supply means for supplying power to the first light emitting part (LEP1) and the second light emitting part (LEP2). may be unnecessary

In this case, if the solar panel (SLC) is installed on the traffic island (ISD) located at the center of the roundabout (1), the first light emitting part (LEP1) and the second light emitting part (LEP2) can be sufficiently driven without a separate power source. can

As such, the power supply unit can be located in the traffic island (ISD) of the roundabout (1).

Alternatively, although not shown, the solar panel (SLC) of the power supply unit may be installed in the space between each road.

For example, it may be possible to install the solar panel SLC in a space between the first access road IR1 and the second exit road OR2, that is, in a corner space of a roundabout.

Meanwhile, when a vehicle enters the roundabout 1, it is possible to selectively drive at least one of the first light emitting part LEP1 and the second light emitting part LEP2. In this regard, referring to the accompanying drawings, it will be described as follows.

7 to 12 are diagrams for explaining a second embodiment of a roundabout driving guidance system according to the present invention. Hereinafter, description of the parts described in detail above may be omitted.

Referring to FIG. 7 , the driver 2 included in the roundabout driving guidance system according to the present invention may include a power supply unit 20, a control unit 10, and a camera unit 30.

Since each component shown in FIG. 7 is not essential, it is also possible to implement a driving unit 2 having more or fewer components.

The power supply unit 20 may supply power to at least one of the camera unit 30 , the first light emitting unit LEP1 and the second light emitting unit LEP2 under the control of the control unit 10 .

The power supply unit 20 may include a solar panel (SLC) including at least one solar cell.

In addition, the power supply unit 20 may be disposed in the traffic island (ISD) of the roundabout (1).

The camera unit 30 may include at least one camera (Camera, 300, 310, 320, 330) for capturing an image of the access road IR of the road RD.

For example, when a total of four access roads (IR) are connected to the roundabout 1, the camera unit 30 includes a first camera 300, a second camera 310, a third camera 320, and A fourth camera 330 may be included.

Each of the cameras 300, 310, 320, and 330 included in the camera unit 30 may capture an image corresponding to the access road IR.

For example, the first camera 300 captures an image corresponding to the first access road IR1 of the first road RD1, and the second camera 310 captures an image corresponding to the second access road IR1 of the second road RD2 ( IR2), the third camera 320 takes an image corresponding to the third access road IR3 of the third road RD3, and the fourth camera 330 captures an image corresponding to the fourth road RD4 ) It is possible to take an image corresponding to the fourth access road IR4.

Considering the price of the camera and the amount of power required to operate the camera, it may be sufficiently advantageous to apply the camera unit 30 to the driving guidance system for the roundabout according to the present invention.

The camera unit 30 may be installed in the traffic island (ISD) like the power supply unit 20 .

When the number of access roads (IR) connected to the roundabout is changed, the number of cameras included in the camera unit 30 may also be changed.

The control unit 10 may control overall driving of the driving unit 2 .

For example, the control unit 10 may control capture and analysis of images, and control supply of power to at least one of the first light emitting unit LEP1 and the second light emitting unit LEP2.

To this end, the control unit 10 may include an entry detection unit 100 and a determination unit 110.

The entry detecting unit 100 may detect the entry of a vehicle into the roundabout 1 by analyzing an image captured by the camera unit 30 .

The determination unit 110 may determine a matching mark MMK corresponding to the entering vehicle detected by the entry detection unit 100, and may determine an exit road mark OMK that matches the determined matching mark MMK. .

The driving unit 2 can take an image using the camera unit 30 in a preset guide mode and use the captured image.

The guide mode can be referred to as a mode in which power is required to be supplied to at least one of the first light emitting part LEP1 and the second light emitting part LEP2 because the surrounding environment of the roundabout 1 is sufficiently dark.

Hereinafter, the guide mode will be described.

Referring to FIG. 8 , the controller 10 may set the driving unit 2 to a guide mode when the current time enters a preset reference time (S100) (S140).

In this case, it may be referred to as a case in which at least one of the first light emitting part LEP1 and the second light emitting part LEP2 emits light by power for a predetermined reference time.

For example, at night when the surroundings are dark, power may be supplied to at least one of the first light emitting unit LEP1 and the second light emitting unit LEP2 to emit light.

Alternatively, the control unit 10 determines the power generation amount of the solar panel (SLC) of the power supply unit 20, and when the power generation amount is less than a preset reference amount production amount (S110), the time for which the power production amount is less than the standard amount amount is maintained It may be determined whether or not the preset first threshold time is exceeded (S120).

As a result of the determination in step S120, when the time for which the power generation amount is equal to or less than the standard amount of production does not exceed the preset first threshold time, the preset first function (Default 1) may be performed (S130).

Here, the first function may include, for example, a function of proceeding to a step of determining the amount of power generated by the solar panel (SLC) or a function of canceling a guidance mode.

On the other hand, as a result of the determination in step S120, when the time during which the power production amount is maintained at or below the standard amount exceeds the preset first critical time period, the driving unit 2 may be set to the guidance mode (S140).

In this case, it may be referred to as a case in which at least one of the first light emitting part LEP1 and the second light emitting part LEP2 emits light by a power source when the surroundings are sufficiently dark regardless of time.

For example, even if it is daytime, when the surroundings are sufficiently dark because clouds or thick fog block sunlight, power may be supplied to at least one of the first light emitting unit LEP1 and the second light emitting unit LEP2 to emit light. there is.

Thereafter, the control unit 10 may release the guidance mode of the driving unit 2 when the current time deviate from the preset reference time (S150) (S190).

Alternatively, the control unit 10 may determine whether the current amount of power production is greater than or equal to a preset standard amount of production (S160).

As a result of the determination in step S160, when the power generation amount is greater than or equal to the standard amount of production, it may be determined whether or not the time during which the state in which the power amount is equal to or greater than the standard amount of production exceeds a preset second threshold time (S170).

As a result of the determination in step S170, when the time for which the power production amount is equal to or greater than the standard amount of production does not exceed the preset second threshold time, the preset second function (Default 2) may be performed (S180).

Here, the second function may include, for example, a function of recognizing whether or not the amount of power produced by the solar panel (SLC) is greater than or equal to a standard amount of production or maintaining a guide mode.

On the other hand, as a result of the determination in step S170, when the time for which the power generation amount is equal to or greater than the reference amount exceeds the preset second threshold time, the driving unit 2 may be released from the guidance mode (S190).

Meanwhile, in the guidance mode, when a vehicle enters the roundabout 1, an image is photographed, and power is supplied to at least one of the first light emitting part LEP1 and the second light emitting part LEP2 using the photographed image. can

Referring to FIG. 9 , in the guide mode, the camera unit 30 may capture an image of the access road IR of the road RD under the control of the controller 10 (S200).

Thereafter, the entry detection unit 100 may analyze the image captured by the camera unit 30 according to the control of the control unit 10 (S210).

In addition, the entry detection unit 100 may determine whether a vehicle enters the roundabout 1 based on the analysis result of the captured image (S220).

In order to reduce unnecessary image processing and power consumption, the entry detection unit 100 compares previous image data with current data and analyzes the image when the change amount of the image data is greater than a preset threshold change amount.

For example, when a vehicle enters the roundabout 1 in a dark environment, there is a high possibility that the luminance of the image is rapidly increased by the light of the vehicle.

Using this, the entry detection unit 100 compares the previous image data with the current image data, determines that there is a possibility of a vehicle entering the roundabout 1 when the image data changes excessively, and analyzes the image to enter the vehicle. It is possible to detect

In detail, the entry detection unit 100 uses 30 frame image data as a cycle, 30 frame image data (previous image data) during the first period (PD1) and the second period (PD2) after the first period (PD1) It is possible to analyze the amount of change in image data by comparing 30 frames of image data (current image data) during the period.

Next, 30 frame image data (previous image data) during the second period (PD2) and 30 frame image data (current image data) during the third period (PD3) after the second period (PD2) are compared to obtain an image. It is possible to analyze the amount of data change.

As such, in the case of analyzing an image in a cycle of 30 frame image data, not only the amount of data analysis can be reduced, but also power consumption can be reduced.

Subsequently, as a result of the determination in step S220, when the vehicle enters the roundabout 1, the determination unit 110 controls the control unit 10, based on the analysis result of the entry detection unit 100 It is possible to determine the lane of the access road (IR) corresponding to the current vehicle and the matching mark (MMK) corresponding thereto (S230).

In addition, the determining unit 110 may determine an exit route mark OMK that matches the matching mark MMK determined based on the matching mark MMK determined under the control of the control unit 10 (S240 ).

Then, under the control of the control unit 10, the power supply unit 20 supplies power to at least one of the matching mark MMK and the exit route mark OMK determined by the determination unit 110 (S250) and supplies power thereto. At least one light emitting part LEP among the received matching mark MMK and exit route mark OMK, that is, at least one of the first light emitting part LEP1 and the second light emitting part LEP2 is turned on (S260), can glow

For example, as shown in FIG. 10 , it is assumed that a predetermined vehicle VCL enters the third lane of the first access road IR1 of the first road RD1.

In this case, the driving unit 2 may detect the entry of the vehicle VCL using the entry detection unit 100 under the control of the control unit 10 .

In addition, the determining unit 100 determines the matching marks MMK, ③ assigned to the third lane of the first access road IR1 of the first road RD into which the vehicle VCL has entered, and determines the corresponding matching mark MMK , ③), that is, the entry route mark OMK, ③ assigned to the third route OR3 of the third road RD3 can be determined.

In addition, the matching mark (MMK, ③) allocated to the three lanes of the first access road IR1 of the first road RD and the access road mark allocated to the third access road OR3 of the third road RD3 ( Power is supplied to each light emitting part LEP of OMK and ③) so that the corresponding light emitting part LEP can emit light.

In this case, the driver of the vehicle VCL is assigned an exit route OR assigned with an exit route mark OMK, ③ that matches the matching mark MMK, ③ assigned to the lane into which he entered, that is, the third exit route. It is possible to easily identify (OR3).

When a plurality of vehicles enter the roundabout 1, it is possible for the access road marks OMK to emit lights of different colors to help the vehicles drive.

For example, as shown in FIG. 11 , the first vehicle VCL1 enters the third lane of the first access road IR1 of the first road RD1 and the second vehicle VCL2 enters the second lane. Let's assume the case of

In this case, the driving unit 2 may detect the entry of the first vehicle VCL1 and the second vehicle VCL2 using the entry detection unit 100 under the control of the control unit 10 .

The determination unit 100 determines the matching mark (MMK, ③) assigned to the third lane of the first access road IR1 of the first road RD into which the first vehicle VCL1 has entered, and determines the corresponding matching mark (③). ), that is, the entry route mark OMK, ③ assigned to the third route OR3 of the third road RD3 can be determined.

In addition, the determination unit 100 determines the matching marks MMK, ④ assigned to the two lanes of the first access road IR1 of the first road RD into which the second vehicle VCL2 has entered, and determines the corresponding matching mark It is possible to determine an exit route mark OMK, ④ that matches (MMK, ④), that is, an exit route mark OMK, ④ assigned to the fourth route OR4 of the fourth road RD4.

Thereafter, the matching mark (MMK, ③) allocated to the three lanes of the first access road IR1 of the first road RD and the access road mark allocated to the third access road OR3 of the third road RD3 ( Power is supplied to the light emitting parts LEP of the OMK and ③), so that the corresponding light emitting parts LEP can emit light of the first color.

For example, the matching mark (MMK, ③) allocated to the three lanes of the first access road IR1 of the first road RD and the access road allocated to the third access road OR3 of the third road RD3 The light emitting part LEP of the mark OMK, ③ may emit green (G) light.

Since the light emitting part LEP may include a red (R) LED, a green (G) LED, and a blue (B) LED, various colors of light may be implemented.

In addition, the matching mark (MMK, ④) allocated to the two lanes of the first access road IR1 of the first road RD and the access road mark allocated to the fourth access road OR4 of the fourth road RD4 ( Power is supplied to each light emitting part (LEP) of OMK, ④), and the light emitting part (LEP) can emit light of a second color different from the first color.

For example, the matching mark (MMK, ④) allocated to the second lane of the first access road IR1 of the first road RD and the access road allocated to the fourth access road OR4 of the fourth road RD4. The light emitting part LEP of the mark OMK, ④ may emit blue (B) light.

As such, in the case of using lights of different colors, information helpful for driving the roundabout 1 can be effectively delivered to drivers even when a plurality of vehicles enter the roundabout 1 .

On the other hand, when a predetermined exit road is guided in response to the lane of the vehicle VCL entering the access road IR, the matching mark MMK of the access road IR and the actual exit road according to the road RD situation or driver characteristics Since the OR may be used differently, when a vehicle enters the roundabout 1, the power supply unit 20 is not limited to corresponding to the matching mark MMK determined by the determination unit 110 , It is also possible to set the guide mode so that the light emitting parts (LEP) of all exit road marks (OMK) of the roundabout 1 turn on (S260) and emit light.

For example, when a predetermined vehicle VCL enters the third lane of the first access road IR of the first road RD1, the driving unit 2 performs a vehicle entry S220 and a matching mark assigned to the third lane. (MMK, ③) can be determined, but all vehicles may use other exit routes (OR) without advancing to the third road (RD3) according to the result of the matching mark discrimination (S230), so the second road (RD2) ) and the exit road mark OMK of the fourth road RD4, the light emitting unit LEP may also emit light.

In addition, when vehicle entry (S220) is determined, the light emitting part (LEP) of the access road mark (IMK) of the access road (IR) emits light to guide information indicating that the rotating vehicle has priority and information about temporary stop. This can help you drive safely.

On the other hand, considering that a vehicle enters the roundabout 1 in a dark environment, it can be expected that the light of the vehicle's headlight can affect the camera unit 30.

Considering this, it is possible to apply a predetermined filter to the camera unit 30 .

For example, as shown in FIG. 12 , it is possible to dispose the polarization filter unit 340 in front of the first camera 310 .

In this case, the first camera 310 can take an image effectively even when the headlights of the vehicle shine excessively on the first camera 310 .

In the roundabout operation guidance system according to the present invention, when it is determined whether or not a vehicle is entering the roundabout 1, detailed information such as the type of the entered vehicle may not be required.

Therefore, it may be more desirable to apply a relatively inexpensive polarization filter to the camera unit 30 .

Meanwhile, although not shown, it is possible for a camera mounted on the vehicle to photograph and recognize the entry road mark IMK, the matching mark MMK, and the exit road mark OMK.

In this case, vehicle navigation may be able to guide the vehicle by using the entry road mark IMK, the matching mark MMK, and the exit road mark OMK.

As such, it will be understood that the technical configuration of the present invention described above can be implemented in other specific forms without changing the technical spirit or essential features of the present invention by those skilled in the art to which the present invention pertains.

Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting, and the scope of the present invention is indicated by the claims to be described later rather than the foregoing detailed description, and the meaning and scope of the claims And all changes or modified forms derived from the equivalent concept should be construed as being included in the scope of the present invention.

Claims (6)

an exit mark assigned to a plurality of exit routes departing from the roundabout; and
an access road mark assigned to each lane of a plurality of access roads entering the roundabout;
including,
The access road mark includes information on the driving method of the roundabout and includes a matching mark matched to at least one of the access road marks,
at least one said access road comprises a plurality of lanes;
The matching mark assigned to the last lane among the plurality of lanes is matched with the exit route mark assigned to the first exit route to the right among the plurality of exit routes;
The roundabout driving guidance system, characterized in that the matching mark assigned to the first lane among the plurality of lanes is matched with the exit road mark assigned to the first exit road to the left among the plurality of exit routes. delete According to claim 1,
A first road, a second road, a third road, and a fourth road are connected to the roundabout,
The first road includes a first exit road departing from the roundabout and a first access road entering the roundabout,
The second road includes a second access road departing from the roundabout and a second access road entering the roundabout,
The third road includes a third access road departing from the roundabout and a third access road entering the roundabout,
The fourth road includes a fourth access road departing from the roundabout and a fourth access road entering the roundabout,
A first entry route mark is assigned to the first entry route;
A second entry route mark is assigned to the second entry route;
A third entry route mark is assigned to the third entry route;
A fourth entry route mark is assigned to the fourth entry route;
The first access road includes 1 lane, 2 lanes, 3 lanes and 4 lanes,
A first matching mark that matches the first exit road mark is assigned to the first lane;
A second matching mark that matches the fourth exit road mark is assigned to the second lane;
A third matching mark that matches the third exit road mark is assigned to the third lane;
The roundabout driving guidance system, characterized in that a fourth matching mark that matches the second exit road mark is allocated to the four lanes. According to claim 1,
The matching mark includes at least one first light emitting part that emits light by supplied power,
The roundabout driving guidance system, characterized in that the exit road mark includes at least one second light emitting unit that emits light by supplied power. According to claim 4,
Further comprising a power supply unit for supplying power to the light emitting unit,
The power supply unit includes at least one solar cell that generates electricity from sunlight,
The roundabout operation guidance system, characterized in that the power supply unit is located on the traffic island of the roundabout. According to claim 5,
a plurality of camera units installed on the traffic island and capturing images corresponding to each of the access roads;
an entry detection unit for analyzing an image captured by the camera unit and detecting a vehicle entering the roundabout; and
a determining unit which determines the matching mark corresponding to the entering vehicle sensed by the entering detecting unit, and determines the entry route mark matching the determined matching mark;
Including more,
the power supply
The roundabout driving guidance system, characterized in that the first light emitting part of the matching mark determined by the discrimination unit and the second light emitting part of the exit road mark respectively supply power to emit light.

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