KR20230048818A - System for alarming traffic situation using bollards in three-way intersection - Google Patents

Abstract

An apparatus for notifying a traffic situation in a three-way intersection using bollards, to notify a danger of traffic accident, comprises: a speed detection unit which is formed on three first danger detection lines (W11, W21, W31) spaced apart from three boundaries (A1, A2, A3) of an intersection area (A) of a three-way intersection where a first road (R1) and a second road (R2) meet at a first distance (d1) in three directions, respectively, and on three second danger detection lines (W12, W22, W32) spaced apart from the first danger detection lines (W11, W21, W31) at a second distance (d2), wherein a plurality of detection sensors are installed in the three first danger detection lines (W11, W21, W31) and three second danger detection lines (W12, W22, W32), respectively, to detect movement and speed of a vehicle; a control unit which generates analysis information by analyzing the location and speed of one or more vehicles passing through any one of the three first danger detection lines (W11, W21, W31) and three second danger detection lines (W12, W22, W32) using one or more pieces of detection data received from the plurality of detection sensors installed in the three first danger detection lines (W11, W21, W31) and three second danger detection lines (W12, W22, W32), and generates a traffic signal according to traffic risk situations in the three directions of the intersection area (A) of the three-way intersection, respectively, based on the analysis information; and a plurality of ballads which are installed at roads in the three directions apart from the intersection area (A) of the three-way intersection and displays the traffic signal for one or more vehicles entering the intersection area (A) of the three-way intersection.

Description

System for alarming traffic situation using bollards in three-way intersection}

The present invention relates to a traffic situation notification system at an intersection where traffic lights are not installed, and more particularly, includes a bollard that detects a vehicle entering from a blind area at a three-way intersection where traffic lights are not installed and provides a traffic signal to notify danger. It relates to a device for providing notification of traffic conditions at a three-way intersection.

A road reflector is installed on a sharp curve road or an intersection where there is not much traffic to allow the user's vehicle to recognize the entry of the other vehicle without a traffic light. A road reflector is a mirror that is installed to check a vehicle coming from another direction at a bend in the road or an intersection that is difficult to see, and generally uses a circular convex mirror. However, depending on the size, type or location of the other vehicle or the user's vehicle, the other vehicle may deviate from the viewing angle of the reflector, or the driver of the user's vehicle who has not checked the road reflector may not check the other vehicle entering the dangerous driving area. may not be able to

Application Publication No. 10-2007-0045395, published on May 2, 2007, reflector for blind spots and traffic safety system using the same

The problem to be solved by the present invention is to detect a vehicle entering from a blind area at a three-way intersection where traffic lights are not installed, detect the location and speed of the vehicle, and effectively notify a dangerous situation at a three-way intersection without traffic lights, thereby reducing the risk of traffic accidents. It is to provide a three-way traffic situation notification system for notification.

According to an aspect of the present invention, a three-way traffic notification system using a bollard has three boundaries (A1, A2, A3) of an intersection area (A) of a three-way intersection where a first road (R1) and a second road (R2) meet. ) and a second distance ( It is formed on the three second danger detection lines (W12, W22, W32) formed spaced apart by d2), the three first danger detection lines (W11, W21, W31) and the three second danger detection lines (W12, W22). , W32) has a speed sensor installed with a plurality of sensors for detecting the movement and speed of the vehicle, three first danger detection lines (W11, W21, W31) and three second danger detection lines (W12, W22, W32) using one or more detection data received from a plurality of detection sensors installed in the three first danger detection lines (W11, W21, W31) and three second danger detection lines (W12, W22, W32) A control unit for generating analysis information by analyzing the location and speed of one or more vehicles passing through any one of them, and generating a traffic signal according to a traffic risk situation in three directions of an intersection area (A) of a three-way intersection based on the analysis information; It is located outside the intersection area (A) of the three-way intersection and is installed on each of the three-way roads, and includes a plurality of bollards displaying traffic signals for one or more vehicles trying to enter the intersection area (A) of the three-way intersection under the control of the control unit. .

In the case where the first road R1 is a three-way intersection intersecting the second road R2 close to the right angle, when the user vehicle enters the first road R1, the first hazard detection installed in the opposite direction of the driver's seat of the user vehicle When sensing data is received from a plurality of sensors installed on the line W11 and the second danger sensing line W12, the control unit determines the first speed of the first opponent vehicle in the first danger sensing line W11 from the sensing data. (v1) and determine the second speed (v2) in the second danger detection line (W12), and the first speed (v1) is greater than or equal to the first threshold speed (vc1) or the second speed (v2) is the first threshold speed When the speed is higher than the second critical speed (vc2) greater than the speed (vc1), the first bollard (B1) can be controlled to display a traffic signal indicating a left turn prohibition on the first bollard (B1) located on the first road (R1). there is.

In the case where the first road R1 is a three-way intersection intersecting the second road R2 close to the right angle, when the user vehicle enters the first road R1, the first hazard detection installed in the opposite direction of the driver's seat of the user vehicle When sensing data is received from a plurality of sensors installed on the line W11 and the second danger sensing line W12, the control unit determines the first speed of the first opponent vehicle in the first danger sensing line W11 from the sensing data. (v1) and the second speed (v2) in the second danger detection line (W12) are determined, and when the first speed (v1) of the first opponent vehicle is greater than the second speed (v2), the possibility of a traffic accident is determined. It is possible to control the first bollard (B1) to display an entry prohibition traffic signal for notification.

It further includes three cameras installed in three directions for photographing three-way roads, and the three cameras photograph one or more vehicles entering the three-way intersection, and the control unit detects the direction of the turn signal lamp of each vehicle from the photographed image and , It is possible to analyze a dangerous situation based on the direction of the direction indicator lamp of the user's vehicle and the direction of the direction indicator lamp of the other vehicle, and control a plurality of bollards to display each traffic signal according to the analyzed dangerous situation.

As a result of detecting the direction of the direction indicators of each vehicle from the captured images, the control unit detects (a) the direction indicators of the first other vehicle entering the second road R2 in the direction of the intersection area A of the three-way intersection with the left turn indicators. In the case where the turn signal lamp of the user vehicle is a left turn indicator lamp, and (b) the direction indicator lamp of the second vehicle entering the intersection area A of the three-way intersection from the opposite direction to the first vehicle is not detected, the user vehicle When the direction indicator of is a left direction indicator, it is possible to control entry prohibition to be displayed on all of the plurality of bollards.

As a result of detecting the direction of the direction indicators of each vehicle from the captured image, the control unit detects that the direction indicator of the first other vehicle is a left turn indicator, and the first vehicle entering the intersection area A of the three-way intersection from the opposite direction to the first other vehicle. 2 When the entry of the other vehicle is detected, the second bollard (B2) displays a left turn prohibition and the third bollard (B3) displays an entry prohibition control.

The control unit determines the type of one or more vehicles entering at least one direction of the first road R1 and the second road R2 from the captured image, respectively, and determines the type of the one or more vehicles determined on the first road R1. And when it is determined that the passage is not possible on the second road R2, it is possible to control entry prohibition to be displayed on all of the plurality of bollards.

According to the present invention, traffic at a three-way intersection using a bollard that detects a vehicle entering from a blind area at a three-way intersection without traffic lights and detects the location and speed of the vehicle to provide a traffic signal according to the situation at a three-way intersection without traffic lights. A situation notification system can be provided.

In addition, according to the present invention, when a vehicle that causes danger in another direction is not detected when a vehicle enters, it is possible to provide a three-way traffic situation notification system that notifies situational information including weather information and speed limit for each weather. there is.

1 is a diagram showing an embodiment of the use of a three-way traffic situation notification system using a bollard according to an embodiment of the present invention.
2 is a diagram showing an example of the appearance of a three-way traffic situation notification system using a bollard according to an embodiment of the present invention.
3 is a diagram showing the configuration of a three-way traffic situation notification system using bollards according to an embodiment of the present invention.
4 is a flowchart illustrating the operation of a three-way traffic situation notification system using a bollard according to an embodiment of the present invention.
5 is a diagram showing types of traffic signals that can be displayed on a first bollard according to an embodiment of the present invention.
6 is a diagram showing types of traffic signals that can be displayed on a second bollard according to an embodiment of the present invention.
7 is a diagram showing types of traffic signals that can be displayed on a third bollard according to an embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, 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 will be omitted. In addition, the terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of a user or operator. Therefore, the definition should be made based on the contents throughout this specification.

1 is a diagram showing an embodiment of the use of a three-way traffic situation notification system using a bollard according to an embodiment of the present invention.

A three-way traffic situation notification system 10 using bollards includes a situation display unit 100, a speed sensor 200, and a plurality of bollards B1, B2, and B3. The three-way intersection is formed when the first road R1 and the second road R2 meet. Among the three boundaries of the intersection area A of the three-way intersection, the first boundary A1 and the third boundary A3 belong to the second road R2, and the second boundary A2 belongs to the first road R1. It is assumed that it is formed to belong to.

The plurality of bollards (B1, B2, B3) are located outside the range of the intersection area (A) of the three-way intersection and are installed on three-way roads, respectively, under the control of the control unit (310 in FIG. 3) included in the situation display unit 100 at the three-way intersection. Displays traffic signals for one or more vehicles entering the intersection area (A) of

A plurality of bollards (B1, B2, B3) is shown in the form of a circular top, but is not limited to its shape and configuration. Each of the bollards B1, B2, and B3 has a buffer member (not shown) for mitigating external impact and a display unit (not shown) that provides traffic signals to be displayed under the control of the situation display unit 100. can be configured to include The display unit (not shown) may include a plurality of LED elements to display arrows and character information. In addition, each of the plurality of bollards B1, B2, and B3 includes a member having heat resistance to external heat and heat emitted from the display unit, and includes a member that blocks the movement of moisture such as rainwater or condensation. can

The first bollard B1 provides a traffic signal for the user vehicle 1 entering in the first direction a11, and the second bollard B2 provides a traffic signal for the user vehicle 1 entering in the second direction a21. 2 or 3), and the third bollard (B3) provides a traffic signal for the second opponent vehicle (4 or 5) entering in the third direction (a31). Hereinafter, for description, the first relative vehicle 2 and the second relative vehicle 4 will be mainly described.

The three-way intersection is separated by a first distance d1 in three directions based on the three boundaries A1, A2, and A3 of the intersection area A of the three-way intersection where the first road R1 and the second road R2 meet. Three first danger detection lines (W11, W21, W31) and three second danger detection lines (W12, W12, W22, W32). Depending on the embodiment, the first distance d1 and the second distance d2 may be set equal to or different from each other, and may be, for example, 5 meters to 25 meters apart. The situation display unit 100 and the speed detection unit 200 are connected through various communication methods such as Wi-Fi and visible light communication, and the situation display unit 100 provides vehicle speed information input for each danger detection line of the speed detection unit 200. can receive

The situation display unit 100 determines display information according to the situation of the three-way intersection, and displays three display panels 132, 134, and 136 respectively installed to face each of the three directions of the three-way intersection or the three directions entering the intersection area A. and output the determined display information to the three display panels 132, 134, and 136. In addition, the control unit (310 in FIG. 3 ) of the status display unit 100 receives and processes the detected data of the speed sensor 200 to generate and provide traffic signals for the bollards B1, B2, and B3.

The external form and configuration of the situation display unit 100 of FIG. 1 is exemplary, and the traffic signal for the bollards B1, B2, and B3 is generated and provided by receiving and processing the detected data of the speed sensor 200. As long as the control unit 310 of 3 is included, the shape and internal configuration of the situation display unit 100 may be variously modified.

The speed detection unit 200 has three first danger detection lines (W11, W21, W31) and three second danger detection lines (W12, W22, W32), respectively, a plurality of detection sensors for detecting whether or not the vehicle is moving and speed. Groups (210, 220, 230, 240, 250, 260 in FIG. 3) are installed. The plurality of detection sensors may include a loop detector (not shown) or a micropulse detector (not shown). The detection data transmitted by the plurality of detection sensor groups (210, 220, 230, 240, 250, 260 in FIG. 3) to the situation display unit 100 includes identification information of each danger detection line and movement of the vehicle passing through each danger detection line. Presence information and vehicle speed information passing through each danger detection line may be included.

The loop detector sets two points for each of the three first hazard detection lines (W11, W21, W31) and the three second hazard detection lines (W12, W22, W32) and installs a loop coil at the set point so that the loop coil is By detecting that the voltage change occurs in each loop coil as it passes through the installed point, the speed of the vehicle is calculated using the distance between the two points where the loop coil is installed and the time when the voltage change occurs in each loop coil.

The micropulse detector scans a plurality of lasers and receives the reflected laser when the vehicle passes, and calculates the speed using the location of the reflection point of the laser and the time required to pass through the reflection point. That is, in order to measure the speed by scanning the laser on the lane and receiving the reflected laser when the vehicle passes, the laser is scanned on the lane.

In the case where the first road R1 is a three-way intersection intersecting the second road R2 close to the right angle, when the user vehicle 1 enters the first road R1, the driver's seat (left side) of the user vehicle 1 When detection data is received from a plurality of detection sensors installed in the first danger detection line (W11) and the second danger detection line (W12) installed in the opposite direction of the detection data, the control unit 310 determines the first relative vehicle (2) from the detection data. ) Determines the first speed (v1) in the first danger detection line (W11) and the second speed (v2) in the second danger detection line (W12), and the first speed (v1) is the first threshold speed (vc1) or more, or when the second speed (v2) is greater than the second threshold speed (vc2) greater than the first threshold speed (vc1), indicating a left turn prohibition on the first bollard (B1) located on the first road (R1) It is possible to control the first bollard (B1) to display a traffic signal.

Alternatively, the situation display unit 100 includes one or more signals received from a plurality of detection sensors installed on three first danger detection lines (W11, W21, W31) and three second danger detection lines (W12, W22, W32). One or more opponent vehicles (2, 3, 4) passing through any one of the three first danger detection lines (W11, W21, W31) and the three second danger detection lines (W12, W22, W32) using the detection data , 5) to generate analysis information by analyzing the location and speed, and based on the analysis information, a controller (310 in FIG. ) and three display panels 132, 134, 136 installed in three directions of the three-way intersection, and can display generated situation information.

2 is a diagram showing an example of the appearance of a three-way traffic situation notification system 10 using a bollard according to an embodiment of the present invention. 3 is a diagram showing the configuration of a three-way traffic situation notification system 10 using bollards according to an embodiment of the present invention.

Referring to FIGS. 2 and 3 , each of the three display panels 132 , 134 , and 136 may include a plurality of cameras 122 , 124 , and 126 that capture a three-way road of a three-way intersection.

The situation display unit 100 is a diagram corresponding to the control unit 310, the camera 320 of FIG. 3 corresponding to the cameras 122, 124, and 126 of FIG. 2 and the three-way display panels 132, 134, and 136 of FIG. A three-way display panel 330 of 3 may be included.

The speed sensor 200 includes a first sensor group 210, a second sensor group 220, a third sensor group 230, a fourth sensor group 240, and a fifth sensor group 250. And it may include a sixth detection sensor group (260). The first detection sensor group 210, the second detection sensor group 220, the third detection sensor group 230, the fourth detection sensor group 240, the fifth detection sensor group 250 and the sixth detection sensor group (260) When each generates sensing data and transmits it to the situation display unit 100, identification information (or location information) of each sensor is further included and transmitted, so that the control unit 310 of the situation display unit 100 controls each sensing data. By identifying the received detection sensor group, it is possible to identify the detection data received from the detection sensor group installed in any danger detection line.

The first detection sensor group 210 is installed on the first danger detection line W11 and detects the movement and speed of the vehicle passing through the first danger detection line W11, and the second detection sensor group 210 It is installed in the second danger detection line (W12), it is possible to detect the movement and speed of the vehicle passing through the second danger detection line (W12). The third detection sensor group 230 is installed on the first danger detection line W21 and detects the movement and speed of the vehicle passing through the first hazard detection line W21, and the fourth detection sensor group 240 It is installed in the second danger detection line (W22), it is possible to detect the movement and speed of the vehicle passing through the second danger detection line (W22). The fifth detection sensor group 250 is installed on the first danger detection line W31 and detects the movement and speed of the vehicle passing through the first danger detection line W31, and the sixth detection sensor group 260 It is installed in the second danger detection line (W32), it is possible to detect the movement and speed of the vehicle passing through the second danger detection line (W32). As described above, the plurality of detection sensors may include a loop detector (not shown) or a micropulse detector (not shown).

When the first speed v1 of the first opponent vehicle 2 is equal to or greater than the second speed v2, the control unit 310 operates the first bollard B1 to display an entry prohibition traffic signal to notify the possibility of a traffic accident. You can control it.

In addition, the controller 310 detects one or more detection data received from a plurality of detection sensors installed on three first danger detection lines (W11, W21, W31) and three second danger detection lines (W12, W22, W32). 3 first hazard detection lines (W11, W21, W31) and 3 second hazard detection lines (W12, W22, W32) by analyzing the position and speed of one or more vehicles passing through any one of the three first hazard detection lines (W11, W21, W32) by using the analyzed information and, based on the analysis information, situation information indicating traffic danger situations in three directions of the intersection area A of the three-way intersection may be generated.

For example, the analysis information may be generated and stored in units of time, and the detection data for each of the three first danger detection lines (W11, W21, W31) and the three second danger detection lines (W12, W22, W32). It can be composed of values.

The control unit 310 includes the analysis information analyzed through the detected data including a predetermined storage area, and the three-way traffic dangerous situation determination criteria based on the analysis information and the situation information to be displayed according to the traffic dangerous situation determination for each analysis information. It may include a context table that determines context information. The status table may be configured such that information set by the management server 20 to be described later is changed or updated according to changes in the installation location and environment. For example, the situation table includes dangerous situation determination criterion information of one or more analysis information to be determined as a dangerous situation, dangerous situation determination information indicating a dangerous situation determined for each analysis information according to the dangerous situation determination criterion information, and a situation for each dangerous situation determination information. One or more pieces of display information of the display unit 100 may be included. In addition, the situation table may further include traffic signal information to be displayed on each of the plurality of bollards B1, B2, and B3 for each dangerous situation determination information.

The control unit 310 controls the sensing data received from the speed sensing unit 200 based on both the captured images from the three-way camera 320 and the sensing data received from the speed sensing unit 200 to detect data for the same vehicle. It is possible to identify whether it is the recognition data or the sensing data for different vehicles.

The status display unit 100 of FIG. 3 further includes a power supply unit 340 supplying power to the control unit 310, the camera 320, and the three-way display panel 330, and the power supply unit 340 generates solar power. can be configured to perform. To this end, the power supply unit 340 may be configured to include the solar panel 150 for photovoltaic power generation of FIG. 2 .

Hereinafter, with reference to FIGS. 1, 2 and 3, the user vehicle 1 is the vehicle 1 entering in the first direction a11 based on the boundary area A, and the first opponent vehicle 2 is A case in which the vehicle 2 enters in the second direction a21 and the second opponent vehicle 4 enters in the second direction a31 will be mainly described.

The situation display unit 100 may be configured to include three cameras 122, 124, and 126 installed in three directions for taking pictures of roads in three directions. The three cameras 122 , 124 , and 126 of FIG. 2 correspond to the camera unit 310 of FIG. 3 .

The three cameras photograph one or more vehicles entering the three-way intersection, and the control unit detects the direction of the turn signal lamp of each vehicle from the captured image, and detects the direction of the turn signal lamp of the user vehicle 1 and the other vehicle 2, 3, 4, 5), it is possible to analyze a dangerous situation based on the direction of the turn signal lamp, and control a plurality of bollards B1, B2, and B3 to display respective traffic signals according to the analyzed dangerous situation.

In the case where the first road R1 is a three-way intersection that intersects the second road R2 close to the right angle, when the user vehicle 1 enters the first road R1, the direction opposite to the driver's seat of the user vehicle 1 When detection data is received from a plurality of detection sensors installed in the first danger detection line W11 and the second danger detection line W12 installed in the detection data, the control unit 310 controls the detection of the first opponent vehicle 2 from the detection data. 1 determines the first speed (v1) in the danger detection line (W11) and the second speed (v2) in the second danger detection line (W12), and the first speed (v1) is the first threshold speed (vc1) or when the second speed v2 is greater than the second threshold speed vc2 greater than the first threshold speed vc1, the speeding vehicle is entering the display panel 132, 134, 136 in the direction of the user vehicle 1 The three-way display panel 330 may be controlled to display situation information indicating . The first critical speed (vc1) may be set to be lower than the second critical speed (vc2), and the first critical speed (vc1) and the second critical speed (vc2) are determined when an accident does not occur in the intersection area (A). It can be set according to the set speed (vs).

In addition, when the first road R1 is a three-way intersection intersecting the second road R2 at a near right angle, when the user vehicle 1 enters the first road R1, the driver's seat of the user vehicle 1 When detection data is received from a plurality of detection sensors installed on the first danger detection line W11 and the second danger detection line W12 installed in the opposite direction, the control unit 310 determines the first danger detection line of the first opponent vehicle from the detection data. The first speed v1 in the danger detection line W11 and the second speed v2 in the second danger detection line W12 are determined, and the first speed v1 is greater than or equal to the first threshold speed vc1. or when the second speed v2 is greater than the second threshold speed vc2 greater than the first threshold speed vc1, a traffic signal indicating a left turn prohibition is displayed on the first bollard B1 located on the first road R1. It is possible to control the first bollard (B1) so as to

In addition, the control unit 310 analyzes the image of the camera 320 and the detected data of the speed sensor 200, so that the first opponent vehicle 2 passing through the second danger detection line W12 is the first danger detection line. It may be determined whether or not the second danger sensing line (W11) has passed, and it may be determined that the speed of the first opponent vehicle 2 is increased in the second danger sensing line (W12) than in the first danger sensing line (W11). When the first speed v1 of the first opponent vehicle 2 is equal to or greater than the second speed v2, the controller 310 determines that the risk of an accident in the intersection area A has increased, and the three-way display panel 132 , 134, 136) can be controlled to display situation information to inform all of the possibility of a traffic accident.

In addition, when the first road R1 is a three-way intersection intersecting the second road R2 at a near right angle, when the user vehicle 1 enters the first road R1, the driver's seat of the user vehicle 1 When detection data is received from a plurality of detection sensors installed on the first danger detection line W11 and the second danger detection line W12 installed in the opposite direction, the control unit 310 determines the first danger detection line of the first opponent vehicle from the detection data. A first speed (v1) in the danger detection line (W11) and a second speed (v2) in the second danger detection line (W12) are determined, and the first speed (v1) of the first opponent vehicle (2) is When the second speed (v2) or higher, it is possible to control the first bollard (B1) to display a traffic signal prohibiting entry to notify the possibility of a traffic accident.

As another method, the control unit 310 detects the direction of the direction indicators of each vehicle from the captured image, and as a result, the first other vehicle 2 entering the second road R2 in the direction of the intersection area A of the three-way intersection. ) is a left turn indicator, and the direction indicator of the user vehicle 1 is a left turn indicator, it is possible to control entry prohibition to be displayed on all of the plurality of bollards B1, B2, and B3. Alternatively, the control unit 310 detects the direction of the direction indicators of each vehicle from the photographed image, and as a result, the second other vehicle 4 entering the intersection area A of the three-way intersection from the opposite direction to the first other vehicle 2 When the direction indicator of the user vehicle 1 is not sensed and the direction indicator of the user's vehicle 1 is a left turn indicator, it is possible to control entry prohibition to be displayed on all of the plurality of bollards B1, B2, and B3.

The control unit 310 determines the type of one or more vehicles entering at least one direction of the first road R1 and the second road R2 from the captured image, and determines the type of the one or more vehicles determined on the first road. (R1) and when it is determined that the second road (R2) is a non-passable type, it is possible to control entry prohibition to be displayed on all of the plurality of bollards (B1, B2, B3).

In addition, the three cameras photograph one or more vehicles entering the three-way intersection, and the controller 310 detects the direction of the turn signal lamp of each vehicle from the captured image, and the direction indicator lamp of the user vehicle 1 and the first Based on the direction of the turn signal lamp of the other vehicle 2, it is determined whether the vehicle is in a dangerous situation, and in the case of a dangerous situation, situation information may be displayed on the three-way sign board 330.

In detail, as a result of detecting the direction of the turn signal lamp of each vehicle from the captured image, the control unit 310 (a) the first other vehicle entering the second road R2 in the direction of the intersection area A of the three-way intersection When the turn signal of (2) is a left turn indicator and the turn indicator of the user vehicle 1 is a left turn indicator, (b) from the opposite direction to the first opponent vehicle 2 to the intersection area A of the three-way intersection When the direction indicator lamp of the second opponent vehicle 4 entering is not detected and the direction indicator lamp of the user vehicle 1 is a left turn signal lamp, the possibility of a traffic accident is indicated on all three direction indicator panels 132, 134, and 136. It can be controlled to display situation information for notification.

In another method, the controller 310 determines the type of vehicle entering at least one direction of the first road R1 and the second road R2 from the captured image, and determines the type of vehicle on the first road ( R1) and the second road (R2), if it is determined that the passage is not possible, it is possible to display situation information for notifying the possibility of a traffic accident on all three-way sign boards 132, 134, and 136. .

For example, in a predetermined storage area of the control unit 310 , information on the shape of a vehicle whose traffic is restricted on a road on which the three-way traffic situation notification system 10 is installed may be stored. When the road on which the three-way traffic notification system 10 is installed is an automobile-only road, passage of two-wheeled vehicles such as motorcycles and bicycles may be restricted. The control unit 310 analyzes the vehicle image from the captured image, and when the analyzed vehicle image is a vehicle whose passage is restricted on the corresponding road, the controller 310 notifies the possibility of a traffic accident on all three-way display panels 132, 134, and 136. It can be controlled to display contextual information for

In addition, as a result of detecting the direction of the direction indicators of each vehicle from the captured image, the control unit 310 finds that the direction indicator lamp of the first other vehicle 2 is a left turn indicator lamp and comes from the direction opposite to that of the first other vehicle 2. When the entry of the second opponent vehicle (4) entering the intersection area (A) of the three-way intersection is detected, the second bollard (B2) displays a left turn prohibition and the third bollard (B3) displays an entry prohibition. can

An auxiliary notification light 360 of FIG. 3 having a plurality of LEDs 112 , 114 , and 116 attached to a pole 110 may be installed at the upper end of the status display unit 100 . The control unit 310 controls the blinking time, blinking speed, and color of emitted light of the plurality of LEDs 112, 114, and 116 of the auxiliary notification light 360 in conjunction with the three-way display panels 132, 134, and 136. can do.

The communication unit 350 may receive weather information and traffic information from the management server 20 connected through communication. The management server 20 may collect and manage information of a plurality of traffic notification systems (not shown) including the three-way traffic notification system 10 . The management server 20 may provide weather information including temperature, humidity, fine dust concentration, and rain information through the three-way traffic situation notification system 10 . The controller 310 may change the aforementioned situation table or one or more pieces of information included in the situation table based on weather information.

For example, when the weather information indicates that it is raining or snowing, the controller 310 sets the first threshold speed vc1 lower than the first threshold speed of clear weather, and sets the second threshold speed vc2 to It may be set lower than the second critical speed in clear weather. Accordingly, when the weather information indicates rain or snow, the controller 310 may increase the frequency of generation of dangerous situation determination information to inform of danger.

According to another embodiment of the present invention, when a vehicle causing danger in another direction is not detected when the user vehicle 1 enters, the controller 310 displays the weather information through the three-way display units 132, 134, and 136. Information and situational information including the speed limit for each weather may be notified.

4 is a flowchart illustrating the operation of the three-way traffic situation notification system 10 using bollards according to an embodiment of the present invention.

When the first road R1 is a three-way intersection that intersects the second road R2 at a near right angle, and the user vehicle 1 enters the first road R1, the control unit 310 controls the user vehicle 1 Receives sensing data from a plurality of sensing sensors installed in the first danger sensing line (W11) and the second danger sensing line (W12) installed in the direction opposite to the driver's seat (410).

The control unit 310 determines the first speed v1 of the first opponent vehicle 2 in the first danger sensing line W11 and the second speed v2 in the second danger sensing line W12 from the sensed data. and when the first speed v1 is equal to or greater than the first threshold speed vc1 or the second speed v2 is equal to or greater than the second threshold speed vc2 greater than the first threshold speed vc1 (420), the first The first bollard B1 may be controlled to display a traffic signal indicating a left turn prohibition on the first bollard B1 located on the road R1 (430).

When the first speed v1 of the first opponent vehicle 2 is equal to or greater than the second speed v2, the control unit 310 operates the first bollard B1 to display an entry prohibition traffic signal to notify the possibility of a traffic accident. can be controlled (440).

5 is a diagram showing the types of traffic signals that can be displayed on the first bollard B1 according to an embodiment of the present invention.

The controller 310 may control the first bollard B1 to display 'left turn prohibited' as shown in (a) of FIG. 5 . 'Left turn prohibited' letters and signs may be displayed in red. Referring to FIGS. 1, 2, 3, and 5, for example, the user vehicle 1 enters the second entry detection line W22 from the sensing data, and the first opponent vehicle 2 enters the first When entering the entry detection line W11 is detected, the controller 310 may control the first bollard B1 to display 'left turn prohibited'.

The controller 310 may control the first bollard B1 to display 'left turn possible' as shown in (b) of FIG. 5 . 'Left turn allowed' letters and signs may be displayed in green. For example, from the sensing data, the user vehicle 1 enters the second entry detection line W22, and the first opponent vehicle 2 enters the first entry detection line W11 or the second entry detection line W12. When entry is not detected and entry of the second opponent vehicle 4 is not detected on the first entry detection line W31 or the second entry detection line W32, the control unit 310 sets the first bollard ( B1) can be controlled so that 'left turn possible' is displayed.

The controller 310 may control the first bollard B1 to display 'no entry' as shown in (c) of FIG. 5 . 'Entry prohibited' letters and signs may be displayed in red, and may be displayed in a flickering manner to increase visibility. For example, from the sensing data, the user vehicle 1 enters the first entry detection line W21 or the second entry detection line W22, and the first entry detection line W11 of the first opponent vehicle 2 If the speed in is accelerated than the speed in the second entry detection line (W12), the controller 310 can control so that 'entry prohibited' is displayed on the first bollard (B1).

The control unit 310 may control the first bollard B1 to display 'right turn prohibited' as shown in (d) of FIG. 5 . 'Right turn prohibited' letters and signs may be displayed in red. For example, when it is detected from the sensing data that the user vehicle 1 enters the second entry detection line W22 and the second opponent vehicle 4 enters the first entry detection line W31, the controller (310) can be controlled so that 'right turn prohibited' is displayed on the first bollard (B1).

The controller 310 may control the first bollard B1 to display 'right turn possible' as shown in (e) of FIG. 5 . 'Right Turn Available' text and signs may be displayed in green. For example, from the sensing data, the user vehicle 1 enters the first entry detection line W21 or the second entry detection line W22, and the second opponent vehicle 4 enters the first entry detection line W11. Alternatively, when it is detected that the second entry detection line W12 is not entered, the controller 310 may control the first bollard B1 to display 'right turn possible'.

6 is a diagram showing the types of traffic signals that can be displayed on the second bollard B2 according to an embodiment of the present invention.

The controller 310 may control the second bollard B2 to display 'go straight ahead' as shown in (a) of FIG. 6 . 'Go straight ahead' letters and signs may be displayed in red. Referring to FIGS. 1, 2, 3, and 5, for example, the first other vehicle 2 enters the first entry detection line W11 from the detected data, and the user vehicle 1 enters the first entry detection line W11. When it is sensed that the left direction indicator is blinking while entering the entry detection line (W21), the control unit 310 displays 'go straight ahead' to the second bollard (B2) providing a traffic signal for the first opponent vehicle (2). can be controlled to be displayed.

The controller 310 may control the second bollard B2 to display 'going straight' as shown in (b) of FIG. 6 . 'Go straight ahead' letters and signs may be displayed in green. For example, from the sensing data, the first opponent vehicle 2 enters the first entry detection line W11, and the user vehicle 1 enters the first entry detection line W21 or the second entry detection line W22. If not detected, the controller 310 may control the second bollard B2 that provides a traffic signal for the first opponent vehicle 2 to display 'going straight'.

The controller 310 may control the second bollard B2 to display 'no entry' as shown in (c) of FIG. 6 . 'Entry prohibited' letters and signs may be displayed in red, and may be displayed in a flickering manner to increase visibility. For example, from the sensing data, the first other vehicle 2 enters the first entry detection line W11 or the second entry detection line W12, and the first entry detection line of the second other vehicle 4 ( When the speed in W31) is higher than the speed in the second entry detection line W32, the controller 310 can control the second bollard B2 to display 'no entry'.

The controller 310 may control the second bollard B2 to display 'left turn prohibited' as shown in (d) of FIG. 6 . 'Left turn prohibited' letters and signs may be displayed in red. For example, it is detected from the sensing data that the first other vehicle 2 is entering a state where the left direction indicator lamp is turned on in the first entry detection line W11 or the second entry detection line W12, and The other vehicle 4 is detected on the first entry detection line W31 or the second entry detection line W32, or the user vehicle 1 is detected on the first entry detection line W11 or the second entry detection line W12. If detected, the controller 310 may control the second bollard B2 to display 'left turn prohibited'.

The controller 310 can control the second bollard B2 to display 'left turn possible' as shown in (e) of FIG. 6 . 'Left turn allowed' letters and signs may be displayed in green. For example, from the sensing data, the first other vehicle 2 enters the first entry detection line W11 or the second entry detection line W12 with the left turn indicator blinking, and the second other vehicle 4 ) is not detected in the first entry detection line W31 or the second entry detection line W32, and the user vehicle 1 is not detected in the first entry detection line W21 or the second entry detection line W22. If not, the controller 310 can control the second bollard (B2) to display 'left turn possible'.

7 is a diagram showing the types of traffic signals that can be displayed on the third bollard B3 according to an embodiment of the present invention.

The controller 310 may control the third bollard B3 to display 'go straight ahead' as shown in (a) of FIG. 7 . 'Go straight ahead' letters and signs may be displayed in red. Referring to FIGS. 1, 2, 3, and 5, for example, the second opponent vehicle 4 enters the first entry detection line W31 from the detected data, and the user vehicle 1 enters the first entry detection line W31. When it is detected that the left turn signal lamp blinks while entering the entry detection line W21, the control unit 310 displays 'go straight ahead' to the third bollard B3 that provides a traffic signal for the second opponent vehicle 4. can be controlled to be displayed.

The controller 310 may control the third bollard B3 to display 'going straight' as shown in (b) of FIG. 7 . 'Go straight ahead' letters and signs may be displayed in green. For example, from the sensing data, the second opponent vehicle 4 enters the first entry detection line W11, and the user vehicle 1 enters the first entry detection line W21 or the second entry detection line W22. If not detected, the controller 310 may control the third bollard B3 that provides a traffic signal for the second opponent vehicle 4 to display 'going straight'.

The controller 310 may control the third bollard B3 to display 'no entry' as shown in (c) of FIG. 7 . 'Entry prohibited' letters and signs may be displayed in red, and may be displayed in a flickering manner to increase visibility. For example, from the sensing data, the second other vehicle 4 enters the first entry detection line W31 or the second entry detection line W32, and the first entry detection line of the first other vehicle 2 ( When the speed in W11) is higher than the speed in the second entry detection line W12, the controller 310 can control the third bollard B3 to display 'no entry'.

The controller 310 may control the third bollard B3 to display 'right turn prohibited' as shown in (d) of FIG. 7 . 'Right turn prohibited' letters and signs may be displayed in red. For example, it is detected from the sensing data that the second opponent vehicle 4 is flashing the right turn signal in the first entry detection line W31 or the second entry detection line W32, and the first opponent vehicle 2 In the first entry detection line (W11) or the second entry detection line (W12), it is detected that the vehicle is entering a state where the left direction indicator lamp is turned on, and the control unit 310 displays 'right turn prohibited' to the third bollard (B3). can be controlled to be displayed.

The controller 310 may control the third bollard B3 to display 'right turn available' as shown in (e) of FIG. 7 . 'Right Turn Available' text and signs may be displayed in green. For example, it is detected from the sensing data that the second opponent vehicle 4 is flashing the right turn signal in the first entry detection line W31 or the second entry detection line W32, and the first opponent vehicle 2 If it is not detected in the first entry detection line (W11) or the second entry detection line (W12), the control unit 310 can control the third bollard (B3) to display 'right turn possible'.

An aspect of the present invention may be implemented as computer readable code on a computer readable recording medium. Codes and code segments implementing the above program can be easily inferred by a computer programmer in the art. A computer-readable recording medium includes all types of recording devices in which data that can be read by a computer system is stored. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical disk, and the like. In addition, computer-readable recording media may be distributed in computer systems connected through a network, and may be stored and executed as computer-readable codes in a distributed manner.

The above description is just one embodiment of the present invention, and those skilled in the art will be able to implement it in a modified form without departing from the essential characteristics of the present invention. Therefore, the scope of the present invention should be construed to include various embodiments within the scope equivalent to those described in the claims without being limited to the above-described embodiments.

10: Three-way traffic situation notification system using bollards
100: situation display unit 200: speed detection unit
20: management server 310: control unit
320: camera 330: three-way sign
340: power supply unit 350: communication unit
360: auxiliary notification light B: bollard
B1: 1st bollard B2: 2nd bollard
B3: 3rd bollard

Claims (7)

It is formed by being spaced apart by a first distance d1 in three directions based on the three boundaries A1, A2, and A3 of the intersection area A of the three-way intersection where the first road R1 and the second road R2 meet. Three first danger detection lines (W11, W21, W31) and three second danger detection lines (W12, W22, W32), and the three first danger detection lines (W11, W21, W31) and the three second danger detection lines (W12, W22, W32) have a plurality of detection sensors for detecting the movement and speed of the vehicle, respectively. A speed sensor is installed;
Three first danger detection lines (W11, W21, W31) and three first danger detection lines (W12, W22, W32) using one or more detection data received from a plurality of detection sensors installed on the three first danger detection lines (W12, W22, W32) Analysis information is generated by analyzing the position and speed of one or more vehicles passing through any one of the detection lines (W11, W21, W31) and the three second danger detection lines (W12, W22, W32), and based on the analysis information a control unit for generating a traffic signal according to a three-way traffic risk situation in the intersection area (A) of the three-way intersection; and
A plurality of bollards located outside the intersection area (A) of the three-way intersection, installed on each of the three-way roads, and displaying traffic signals for one or more vehicles trying to enter the intersection area (A) of the three-way intersection under the control of the control unit; Three-way traffic situation notification system using a bollard, characterized in that it comprises a. According to claim 1,
In the case where the first road R1 is a three-way intersection intersecting the second road R2 close to the right angle, when the user vehicle enters the first road R1, the first hazard detection installed in the opposite direction of the driver's seat of the user vehicle When sensing data is received from a plurality of sensors installed on the line W11 and the second danger sensing line W12, the control unit determines the first speed of the first opponent vehicle in the first danger sensing line W11 from the sensing data. (v1) and determine the second speed (v2) in the second danger detection line (W12), and the first speed (v1) is greater than or equal to the first threshold speed (vc1) or the second speed (v2) is the first threshold speed When the speed is greater than the second critical speed (vc2) greater than the speed (vc1), controlling the first bollard (B1) to display a traffic signal indicating a left turn prohibition on the first bollard (B1) located on the first road (R1) A three-way traffic situation notification system using bollards. According to claim 1,
In the case where the first road R1 is a three-way intersection intersecting the second road R2 close to the right angle, when the user vehicle enters the first road R1, the first hazard detection installed in the opposite direction of the driver's seat of the user vehicle When sensing data is received from a plurality of sensors installed on the line W11 and the second danger sensing line W12, the control unit determines the first speed of the first opponent vehicle in the first danger sensing line W11 from the sensing data. (v1) and the second speed (v2) in the second danger detection line (W12) are determined, and when the first speed (v1) of the first opponent vehicle is greater than the second speed (v2), the possibility of a traffic accident is determined. A three-way traffic situation notification system using a bollard, characterized in that for controlling the first bollard (B1) to display an entry prohibition traffic signal for notification. According to claim 1,
Including three more cameras installed in three directions to shoot the road in three directions,
The three cameras photograph one or more vehicles entering the three-way intersection, and the control unit detects the direction of the turn signal lamp of each vehicle from the captured image, and based on the direction of the turn signal lamp of the user's vehicle and the direction of the direction indicator lamp of the other vehicle, A three-way traffic situation notification system using bollards, characterized in that for analyzing a dangerous situation and controlling a plurality of bollards to display each traffic signal according to the analyzed dangerous situation. According to claim 4,
As a result of detecting the direction of the direction indicators of each vehicle from the captured images, the control unit detects (a) the direction indicators of the first other vehicle entering the second road R2 in the direction of the intersection area A of the three-way intersection with the left turn indicators. In the case where the turn signal lamp of the user vehicle is a left turn indicator lamp, and (b) the direction indicator lamp of the second vehicle entering the intersection area A of the three-way intersection from the opposite direction to the first vehicle is not detected, the user vehicle If the turn signal is a left turn indicator,
A three-way traffic situation notification system using bollards, characterized in that the control so that entry prohibition is displayed on all of the plurality of bollards. According to claim 4,
As a result of detecting the direction of the direction indicators of each vehicle from the captured image, the control unit detects that the direction indicator of the first other vehicle is a left turn indicator, and the first vehicle entering the intersection area A of the three-way intersection from the opposite direction to the first other vehicle. 2 When the entry of the other vehicle is detected, a left turn prohibition is displayed on the second bollard (B2) and the third bollard (B3) is controlled to display an entry prohibition. According to claim 4,
The control unit determines the type of one or more vehicles entering at least one direction of the first road R1 and the second road R2 from the captured image, respectively, and determines the type of the one or more vehicles determined on the first road R1. and when it is determined that the second road (R2) is not passable, the traffic situation notification system at a three-way intersection using bollards is controlled so that entry prohibition is displayed on all of the plurality of bollards.

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