KR102630046B1 - System for alarming traffic situation using bollards in three-way intersection - Google Patents

Abstract

The three-way traffic situation notification system using bollards operates in three directions based on the three boundaries (A1, A2, A3) of the intersection area (A) of the three-way intersection where the first road (R1) and the second road (R2) meet. 3 first danger detection lines (W11, W21, W31) formed by being spaced apart from a first distance (d1) and 3 formed by being spaced apart from the first danger detection lines (W11, W21, W31) by a second distance (d2). It is formed in two second danger detection lines (W12, W22, W32), and each of the three first danger detection lines (W11, W21, W31) and three second danger detection lines (W12, W22, W32) has the vehicle's A speed detection unit equipped with multiple sensors that detect movement and speed, and a plurality of sensors installed on three first danger detection lines (W11, W21, W31) and three second danger detection lines (W12, W22, W32). One or more of the 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 the detection sensor. A control unit that generates analysis information by analyzing the location and speed of the vehicle, and generates traffic signals according to the three-way traffic risk situation in the intersection area (A) of the three-way intersection based on the analysis information, and the intersection area (A) of the three-way intersection It is located outside the range and installed on each of the three-way roads, and includes a plurality of bollards that display traffic signals for one or more vehicles about to enter the intersection area (A) of the three-way intersection under the control of the control unit.

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 specifically, includes a bollard that detects vehicles entering from a blind area at a three-way intersection where traffic lights are not installed and provides a traffic signal to notify of danger. This relates to a device that provides traffic situation notifications at a three-way intersection.

Road reflectors are installed on sharp curves or intersections with little traffic to allow the user's vehicle to recognize the entrance of another vehicle without a traffic light. Road reflectors are mirrors installed at bends in the road and at intersections where it is difficult to see to check vehicles coming from different directions. They generally use circular convex mirrors. However, depending on the size, type, or location of the other vehicle or the user's vehicle, these road reflectors may deviate from the reflector's viewing angle, or the drivers of the user's vehicle who did not check the road reflector may not check the other vehicle entering the driving danger zone. It may not be possible.

Application Publication No. 10-2007-0045395, published on May 2, 2007, blind spot reflector 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 spot at a three-way intersection without a traffic light, detect the location and speed of the vehicle, and effectively notify of a dangerous situation at a three-way intersection without a traffic light, thus reducing the risk of traffic accidents. The purpose is to provide a three-way traffic situation notification system for notification.

The three-way traffic situation notification system using bollards according to one aspect of the present invention includes three boundaries (A1, A2, A3) of the intersection area (A) of the three-way intersection where the first road (R1) and the second road (R2) meet. ) and a second distance ( It is formed on three second danger detection lines (W12, W22, W32) spaced apart from d2), three first danger detection lines (W11, W21, W31) and three second danger detection lines (W12, W22) , W32) includes a speed detection unit in which a plurality of sensors are installed to detect the movement and speed of the vehicle, three first danger detection lines (W11, W21, W31) and three second danger detection lines (W12, Among the 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 (W22, W32) A control unit that generates analysis information by analyzing the position and speed of one or more vehicles passing through a certain intersection, and generates traffic signals according to traffic risk situations in three directions in the intersection area (A) of the 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 that display traffic signals for one or more vehicles attempting to enter the intersection area (A) of the three-way intersection under the control of the control unit. .

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

When the first road (R1) is a three-way intersection that intersects at a close right angle to the second road (R2), when the user's vehicle enters the first road (R1), the first hazard detection device is installed on the opposite side of the driver's seat of the user's vehicle. When detection data is received from a plurality of detection sensors installed in the line (W11) and the second danger detection line (W12), the control unit determines the first speed in the first danger detection line (W11) of the first opponent vehicle from the detection data. (v1) and the second speed (v2) at the second danger detection line (W12) are determined, and if the first speed (v1) of the first other vehicle is higher than the second speed (v2), the possibility of a traffic accident is determined. The first bollard (B1) can be controlled to display a no-entry traffic signal for notification purposes.

It further includes three cameras installed in three directions to photograph roads in three directions, the three cameras photograph one or more vehicles entering the three-way intersection, and the control unit detects the direction of each vehicle's turn signal light from the captured images. , a dangerous situation can be analyzed based on the direction of the user's vehicle's turn signal light and the direction of the other vehicle's turn signal light, and a plurality of bollards can be controlled to display each traffic signal according to the analyzed dangerous situation.

As a result of detecting the direction of each vehicle's turn signal light from the captured image, the control unit determines that (a) the turn signal light of the first other vehicle entering the second road (R2) in the direction of the intersection area (A) of the three-way intersection is the left turn signal light; In the case where the turn signal of the user's vehicle is a left turn signal, and (b) the turn signal of the second opponent's vehicle entering the intersection area (A) of the three-way intersection from the opposite direction to the first opponent's vehicle is not detected, the user's vehicle If the turn signal light is a left turn signal light, it can be controlled so that no entry is displayed on all of the plurality of bollards.

As a result of detecting the direction of each vehicle's turn signal light from the captured image, the control unit determines that the turn signal light of the first opposing vehicle is the left turn signal light, and that the first opposing vehicle entering the intersection area (A) of the three-way intersection from the opposite direction to the first opposing vehicle 2 When the entry of an opposing vehicle is detected, left turn prohibition is displayed on the second bollard (B2) and control is performed so that entry prohibition is displayed on the third bollard (B3).

The control unit determines the type of one or more vehicles entering in at least one direction of the first road (R1) and the second road (R2) from the captured image, and the type of the determined one or more vehicles is the type of the first road (R1). And when it is determined that the second road (R2) is of a type that is not possible to pass through, it can be controlled so that no entry is displayed on all of the plurality of bollards.

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

In addition, according to the present invention, when a vehicle causing 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 limits for each weather. there is.

Figure 1 is a diagram showing an embodiment of the use of a three-way traffic situation notification system using bollards according to an embodiment of the present invention.
Figure 2 is a diagram showing an example of the appearance of a three-way traffic situation notification system using bollards according to an embodiment of the present invention.
Figure 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.
Figure 4 is a flowchart showing the operation of a three-way traffic situation notification system using bollards according to an embodiment of the present invention.
Figure 5 is a diagram showing the types of traffic signals that can be displayed on the first bollard according to an embodiment of the present invention.
Figure 6 is a diagram showing the types of traffic signals that can be displayed on the second bollard according to an embodiment of the present invention.
Figure 7 is a diagram showing the types of traffic signals that can be displayed on the 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 attached 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 described below are terms defined in consideration of functions in the present invention, and may vary depending on the intention or custom of the user or operator. Therefore, the definition should be made based on the contents throughout this specification.

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

The three-way traffic situation notification system 10 using bollards includes a situation display unit 100, a speed detection unit 200, and a plurality of bollards (B1, B2, B3). A 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.

A plurality of bollards (B1, B2, B3) are located outside the intersection area (A) of the three-way intersection and are installed on each of the three-way roads, and are located at the three-way intersection under the control of the control unit (310 in FIG. 3) included in the situation display unit 100. Displays a traffic signal for one or more vehicles attempting to enter the intersection area (A).

The plurality of bollards (B1, B2, B3) are shown as having a circular upper portion, but their shape and configuration are not limited. The bollards (B1, B2, B3) each have a buffer member (not shown) on the outer peripheral surface to relieve external shock and a display unit (not shown) that provides a traffic signal to be displayed under the control of the status display unit 100. It can be configured to include. The display unit (not shown) may include a plurality of LED elements and be configured to display arrow and text information. In addition, the plurality of bollards (B1, B2, B3) each include a member having heat resistance to external heat and heat emitted from the display unit, and may include a member to block the movement of moisture such as rainwater or condensation. You 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 explanation purposes, the description will focus on the first counterpart vehicle 2 and the second counterpart vehicle 4.

At the three-way intersection, the first road (R1) and the second road (R2) are spaced apart in three directions at the first street (d1) based on the three boundaries (A1, A2, A3) of the intersection area (A) of the three-way intersection (A). three first danger detection lines (W11, W21, W31) and three second danger detection lines (W12, W12, It is configured to include W22, W32). Depending on the embodiment, the first distance d1 and the second distance d2 may be set to be the same or different from each other, for example, may be spaced apart from 5 meters to 25 meters. 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 methods, and the situation display unit 100 provides vehicle speed information input for each hazard 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 boards (132, 134, and 136) installed to face each of the three directions of the three-way intersection or the three directions entering the intersection area (A). Included, the determined display information can be output on three display boards (132, 134, and 136). In addition, the control unit (310 in FIG. 3) of the status display unit 100 receives and processes the detection data of the speed detection unit 200, and generates and provides traffic signals for the bollards (B1, B2, B3).

The external shape and configuration of the situation display unit 100 in Figure 1 are exemplary, and are shown to receive and process detection data from the speed detection unit 200 to generate and provide traffic signals for bollards (B1, B2, B3). The shape and internal configuration of the status display unit 100, as long as it includes the control unit 310 of 3, can be modified in various ways.

The speed detection unit 200 has three first danger detection lines (W11, W21, W31) and three second danger detection lines (W12, W22, W32) with a plurality of detection sensors that detect the movement and speed of the vehicle, respectively. Groups (210, 220, 230, 240, 250, and 260 in FIG. 3) are installed. The plurality of detection sensors may include a loop detector (not shown) or a micropulse detector (not shown). Sensing data transmitted to the situation display unit 100 by a plurality of detection sensor groups (210, 220, 230, 240, 250, and 260 in FIG. 3) includes identification information of each danger detection line and the movement of the vehicle passing each danger detection line. It may include presence/absence information and vehicle speed information passing through each hazard detection line.

The loop detector sets two points for each of the three first danger detection lines (W11, W21, W31) and the three second danger detection lines (W12, W22, W32) and installs a loop coil at the set point. By detecting the voltage change 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 multiple lasers and receives reflected lasers as the vehicle passes, thereby calculating the speed using the location of the laser's reflection point and the time it takes to pass the reflection point. In other words, the laser is scanned into the lane to measure speed by receiving reflected laser light when a vehicle passes.

When the first road (R1) is a three-way intersection that intersects the second road (R2) at a close 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, the control unit 310 detects the first opponent vehicle (2) from the detection data. ) determine the first speed (v1) at the first danger detection line (W11) and the second speed (v2) at the second danger detection line (W12), and the first speed (v1) is the first critical speed (vc1) or more, or when the second speed (v2) is greater than the first critical speed (vc1), the left turn is prohibited on the first bollard (B1) located on the first road (R1). The first bollard (B1) can be controlled to display a traffic signal.

Alternatively, the situation display unit 100 may receive 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). Using the sensed data, one or more opposing vehicles (2, 3, 4) passing through any one of the three first danger detection lines (W11, W21, W31) and three second danger detection lines (W12, W22, W32) , 5), a control unit (310 in FIG. 3) that generates analysis information by analyzing the location and speed, and generates situation information that displays traffic risk situations in each of the three directions in the intersection area (A) of the three-way intersection based on the analysis information. ) and three display boards (132, 134, 136) installed in each of the three directions of the three-way intersection, and can display the generated situation information.

Figure 2 is a diagram showing an example of the appearance of a three-way traffic situation notification system 10 using bollards according to an embodiment of the present invention. Figure 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 Figures 2 and 3, each of the three display boards 132, 134, and 136 may include a plurality of cameras 122, 124, and 126 that take pictures of a three-way road at a three-way intersection.

The status display unit 100 corresponds 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 board 132, 134, and 136 of FIG. 2. It may include three three-way display boards 330.

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. 1st detection sensor group 210, 2nd detection sensor group 220, 3rd detection sensor group 230, 4th detection sensor group 240, 5th detection sensor group 250 and 6th detection sensor group (260) When each sensed data is generated and transmitted 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 transmits each sensed data. By identifying the received detection sensor group, it is possible to identify the detection data received from the detection sensor group installed on a certain hazard 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 is installed in the first danger detection line (W11). It is installed on the second danger detection line (W12) and can detect the movement and speed of the vehicle passing 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 danger detection line (W21), and the fourth detection sensor group 240 is installed in the first danger detection line (W21). It is installed on the second danger detection line (W22) and can detect the movement and speed of the vehicle passing through the second danger detection line (W22). The fifth detection sensor group 250 is installed in 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 is installed in the first danger detection line (W31). It is installed on the second danger detection line (W32) and can 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 higher than the second speed (v2), the control unit 310 sets the first bollard (B1) to display a no-entry traffic signal to inform of the possibility of a traffic accident. You can control it.

In addition, the control unit 310 receives one or more detection data from a plurality of detection sensors installed in the three first danger detection lines (W11, W21, W31) and the three second danger detection lines (W12, W22, W32). Analysis information is provided 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 the three second danger detection lines (W12, W22, W32). Based on the analysis information, situational information can be generated that displays traffic risk situations in each of the three directions in the intersection area (A) of the three-way intersection.

For example, analysis information can be generated and stored on an hourly basis, and detection data for each of the three first risk detection lines (W11, W21, W31) and three second risk detection lines (W12, W22, W32) It can be composed including values.

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

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

The status display unit 100 of FIG. 3 further includes a power supply unit 340 that supplies power to the control unit 310, the camera 320, and the three-way display board 330, and the power supply unit 340 generates solar power. It can be configured to perform. To this end, the power supply unit 340 may be configured to include the solar panel 150 for solar 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 the vehicle 1 entering the boundary area A. The description will focus on the case where the vehicle 2 is entering in the second direction (a21) and the second opponent vehicle 4 is entering in the second direction (a31).

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

Three cameras capture one or more vehicles entering the three-way intersection, and the control unit detects the direction of the turn signal lights of each vehicle from the captured images, and determines the direction of the turn signal lights of the user vehicle (1) and the other vehicles (2, 3, Dangerous situations can be analyzed based on the directions of the turn signals of 4 and 5), and a plurality of bollards (B1, B2, B3) can be controlled to display each traffic signal according to the analyzed dangerous situations.

When the first road (R1) is a three-way intersection that intersects the second road (R2) at a close right angle, when the user vehicle (1) enters the first road (R1), in 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), the control unit 310 detects the first opponent vehicle (2) from the detection data. 1 Determine the first speed (v1) at the danger detection line (W11) and the second speed (v2) at the second danger detection line (W12), and the first speed (v1) is the first critical speed (vc1). If the speed is greater than or equal to the second critical speed (v2), which is greater than the first critical speed (vc1), a speeding vehicle is entering the display boards (132, 134, 136) in the direction of the user vehicle (1). The three-way display board 330 can be controlled to display situation information indicating. The first critical speed (vc1) can 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 so that no accident occurs 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 that intersects at a close right angle to the second road (R2), 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 opposite directions, the control unit 310 determines the first danger detection line of the first opponent vehicle from the detection data. Determine the first speed (v1) at the danger detection line (W11) and the second speed (v2) at the second danger detection line (W12), and the first speed (v1) is greater than or equal to the first critical speed (vc1) Or, if the second speed (v2) is greater than the second critical speed (vc2), which is greater than the first critical speed (vc1), a traffic signal indicating left turn prohibition is displayed on the first bollard (B1) located on the first road (R1). The first bollard (B1) can be controlled to do so.

In addition, the control unit 310 analyzes the image of the camera 320 and the detection data of the speed detection unit 200, and determines that the first opponent vehicle 2 that passed the second danger detection line W12 is connected to the first danger detection line W12. It is possible to determine whether it has passed (W11) and to determine that the speed of the first opponent vehicle 2 has increased in the second danger detection line (W12) compared to the first danger detection line (W11). When the first speed (v1) of the first opponent vehicle (2) is higher than the second speed (v2), the control unit 310 determines that the risk of an accident occurring in the intersection area (A) increases, and displays the three-way display board (132). , 134, 136) can be controlled to display situational information to inform everyone of the possibility of a traffic accident.

In addition, when the first road (R1) is a three-way intersection that intersects at a close right angle to the second road (R2), 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 opposite directions, the control unit 310 determines the first danger detection line of the first opponent vehicle from the detection data. The first speed (v1) at the danger detection line (W11) and the second speed (v2) at the second danger detection line (W12) are determined, and the first speed (v1) of the first opponent vehicle (2) is determined. When the second speed (v2) or higher, the first bollard (B1) can be controlled to display a no-entry traffic signal to inform of the possibility of a traffic accident.

In another method, the control unit 310 detects the direction of each vehicle's turn signal lamp from the captured image, and as a result, the first opponent vehicle (2) entering the second road (R2) in the direction of the intersection area (A) of the three-way intersection )'s turn signal is a left turn signal, and the turn signal of the user's vehicle (1) is a left turn signal, it can be controlled so that no entry is displayed on all of the plurality of bollards (B1, B2, B3). Alternatively, the control unit 310 detects the direction of each vehicle's turn signal lamp from the captured image, and as a result, the second opponent vehicle (4) enters the intersection area (A) of the three-way intersection from the opposite direction to the first opponent vehicle (2). If the turn signal light is not detected and the turn signal light of the user's vehicle (1) is a left turn signal light, it can be controlled so that no entry is displayed on all of the plurality of bollards (B1, B2, B3).

The control unit 310 determines the type of one or more vehicles entering in at least one direction of the first road (R1) and the second road (R2) from the captured image, and the type of the determined one or more vehicles enters the first road (R1) and the second road (R2). When it is determined that traffic is not possible on (R1) and the second road (R2), it can be controlled so that no entry is displayed on all of the plurality of bollards (B1, B2, B3).

In addition, three cameras capture one or more vehicles entering the three-way intersection, and the control unit 310 detects the direction of each vehicle's turn signal light from the captured images, and determines the direction of the turn signal light 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 it is a dangerous situation, and if it is a dangerous situation, situation information can be displayed on the three-way display board 330.

In detail, the control unit 310 detects the direction of each vehicle's turn signal lamp from the captured image, and as a result, (a) the first opponent vehicle entering the second road (R2) in the direction of the intersection area (A) of the three-way intersection In the case where the turn signal light of (2) is a left turn signal light and the turn signal light of the user's vehicle (1) is a left turn signal light, (b) from the opposite direction to the first opponent vehicle (2) to the intersection area (A) of the three-way intersection If the turn signal of the approaching second opposing vehicle (4) is not detected and the turn signal of the user's vehicle (1) is a left turn signal, the possibility of a traffic accident is displayed on all three direction signs (132, 134, and 136). You can control the display of situational information for notification purposes.

In another method, the control unit 310 determines the type of vehicle entering in at least one direction of the first road (R1) and the second road (R2) from the captured image, and determines the type of vehicle entering the first road (R1) and the second road (R2). If it is determined that traffic is not possible on R1) and the second road (R2), it can be controlled to display situational information to inform of the possibility of a traffic accident occurring on all three direction signs (132, 134, 136). .

For example, information on the type of vehicle on which traffic is restricted on a road where the three-way traffic situation notification system 10 is installed may be stored in a predetermined storage area of the control unit 310. If the road on which the three-way traffic situation notification system 10 is installed is an automobile-only road, traffic by two-wheeled vehicles such as motorcycles and bicycles may be restricted. The control unit 310 analyzes the vehicle image from the captured image, and if the analyzed vehicle image is a vehicle whose traffic is restricted on the road, it notifies the possibility of a traffic accident occurring on all three direction display boards 132, 134, and 136. You can control the display of situational information.

In addition, the control unit 310 detects the direction of each vehicle's turn signal from the captured image, and as a result, the turn signal of the first other vehicle 2 is a left turn signal, and is coming from the opposite direction to the first other vehicle 2. When the second opposing 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 a prohibition on entry. You can.

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

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

For example, when the weather information indicates rainy or snowy weather, the control unit 310 sets the first critical speed (vc1) lower than the first critical speed in clear weather and sets the second critical speed (vc2). It can be set lower than the second critical speed in clear weather. Accordingly, when the weather information indicates rainy or snowy weather, the control unit 310 may increase the frequency of generating risk situation determination information to notify risk.

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 control unit 310 displays the weather through the three-way display units 132, 134, and 136. It can provide situational information including information and speed limits for each weather.

Figure 4 is a flowchart showing 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 at a close right angle to the second road (R2), when the user vehicle (1) enters the first road (R1), the control unit 310 controls the user vehicle (1) Sensing 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 of the driver's seat (410).

The control unit 310 determines the first speed v1 at the first danger detection line W11 and the second speed v2 at the second danger detection line W12 of the first opponent vehicle 2 from the sensed data. Determine, and if the first speed (v1) is greater than or equal to the first critical speed (vc1) or the second speed (v2) is greater than the second critical speed (vc2) greater than the first critical speed (vc1) (420), the first The first bollard (B1) can be controlled to display a traffic signal indicating 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 higher than the second speed (v2), the control unit 310 sets the first bollard (B1) to display a no-entry traffic signal to inform of the possibility of a traffic accident. Controllable (440).

Figure 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 control unit 310 may control the display of 'left turn prohibited' on the first bollard B1, 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, 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 W22. When entering the entry detection line W11 is detected, the control unit 310 may control the display of 'left turn prohibited' on the first bollard B1.

The control unit 310 may control the display of 'left turn possible' on the first bollard B1, as shown in (b) of FIG. 5. ‘Left turn permitted’ text and signs may be displayed in green. For example, from the detection 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. If entry is not detected and the second opponent vehicle (4) is not detected entering from the first entry detection line (W31) or the second entry detection line (W32), the control unit 310 detects the first bollard ( B1) can be controlled to display ‘left turn possible’.

The control unit 310 may control the display of 'no entry' on the first bollard (B1), as shown in (c) of FIG. 5. 'No entry' letters and signs may be displayed in red and may be displayed in a flashing manner to increase visibility. For example, from the detection 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 at is faster than the speed at the second entry detection line (W12), the control unit 310 may control the display of 'no entry' on the first bollard (B1).

The control unit 310 may control the display of 'right turn prohibited' on the first bollard B1, 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 detection 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 control unit (310) can be controlled so that 'right turn prohibited' is displayed on the first bollard (B1).

The control unit 310 may control the display of 'right turn possible' on the first bollard B1, as shown in (e) of FIG. 5. ‘Right turn possible’ text and signs may be displayed in green. For example, from the detection 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 control unit 310 may control the display of 'right turn possible' on the first bollard (B1).

Figure 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 control unit 310 may control the second bollard B2 to display 'no straight ahead' as shown in (a) of FIG. 6. 'Do not go straight' letters and signs may be displayed in red. Referring to FIGS. 1, 2, 3, and 5, 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 W11. When it is detected that the left turn signal is flashing while entering the entry detection line (W21), the control unit 310 sends a 'no straight ahead' message to the second bollard (B2) that provides a traffic signal for the first opposing vehicle (2). You can control it to be displayed.

The control unit 310 may control the second bollard B2 to display 'straight ahead possible' as shown in (b) of FIG. 6. ‘Go straight ahead’ text and signs may be displayed in green. For example, from the detection 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 control unit 310 may control the second bollard B2, which provides a traffic signal for the first other vehicle 2, to display 'can go straight'.

The control unit 310 may control the display of 'no entry' on the second bollard (B2), as shown in (c) of FIG. 'No entry' letters and signs may be displayed in red and may be displayed in a flashing manner to increase visibility. For example, from the detection data, the first opponent 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 opponent vehicle 4 ( If the speed at W31) is accelerated than the speed at the second entry detection line (W32), the control unit 310 can control the display of 'no entry' on the second bollard (B2).

The control unit 310 may control the display of 'left turn prohibited' on the second bollard B2, as shown in (d) of FIG. 6. 'No left turn' text and signs may be displayed in red. For example, from the detection data, it is detected that the first opponent vehicle 2 is entering with the left turn indicator on in the first entry detection line W11 or the second entry detection line W12, and the second The opposing vehicle (4) is detected at the first entry detection line (W31) or the second entry detection line (W32), or the user vehicle (1) is detected at the first entry detection line (W11) or the second entry detection line (W12). When detected, the control unit 310 can control the display of 'left turn prohibited' on the second bollard (B2).

The control unit 310 may control the display of 'left turn possible' on the second bollard B2, as shown in (e) of FIG. 6. ‘Left turn permitted’ text and signs may be displayed in green. For example, from the detection data, the first opponent vehicle (2) enters the first entry detection line (W11) or the second entry detection line (W12) with the left turn signal flashing, and the second opponent 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 control unit 310 may control the display of 'left turn possible' on the second bollard (B2).

Figure 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 control unit 310 can control the third bollard (B3) to display 'no straight ahead' as shown in (a) of FIG. 7. ‘No straight ahead’ letters and signs may be displayed in red. Referring to FIGS. 1, 2, 3, and 5, for example, from the sensing data, the second opponent vehicle 4 enters the first entry detection line W31, and the user vehicle 1 enters the first entry detection line W31. When it is detected that the left turn signal light is flashing while entering the entry detection line (W21), the control unit 310 sends a 'no straight ahead' signal to the third bollard (B3) that provides a traffic signal for the second opposing vehicle (4). You can control it to be displayed.

The control unit 310 may control the third bollard B3 to display 'possible to go straight' as shown in (b) of FIG. 7. ‘Go straight ahead’ text and signs may be displayed in green. For example, from the detection 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 control unit 310 may control the third bollard B3, which provides a traffic signal for the second opponent vehicle 4, to display 'can go straight'.

The control unit 310 can control the display of 'no entry' on the third bollard (B3), as shown in (c) of FIG. 'No entry' letters and signs may be displayed in red and may be displayed in a flashing manner to increase visibility. For example, from the detection data, the second opponent 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 opponent vehicle 2 ( If the speed at W11) is accelerated than the speed at the second entry detection line (W12), the control unit 310 can control the display of 'no entry' on the third bollard (B3).

The control unit 310 may control the display of 'right turn prohibited' on the third bollard (B3), as shown in (d) of FIG. ‘Right turn prohibited’ letters and signs may be displayed in red. For example, from the detection data, it is detected 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 this first entry detection line (W11) or the second entry detection line (W12), it is detected that entry is being made with the left turn indicator turned on, and the control unit 310 sends a 'right turn prohibited' message to the third bollard (B3). You can control it to be displayed.

The control unit 310 may control the display of 'right turn possible' on the third bollard B3, as shown in (e) of FIG. 7. ‘Right turn possible’ text and signs may be displayed in green. For example, from the detection data, it is detected 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 display of 'right turn possible' on the third bollard (B3).

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 deduced by a computer programmer in the art. Computer-readable recording media include all types of recording devices that store data that can be read by a computer system. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical disk, etc. Additionally, the computer-readable recording medium may be distributed over networked computer systems and stored and executed as computer-readable code in a distributed manner.

The above description is only an example of the present invention, and those skilled in the art will be able to implement the present invention in a modified form without departing from the essential characteristics of the present invention. Accordingly, the scope of the present invention is not limited to the above-described embodiments, but should be interpreted to include various embodiments within the scope equivalent to the content described in the patent claims.

10: Traffic situation notification system at three-way intersection using bollards
100: Status display unit 200: Speed detection unit
20: Management server 310: Control unit
320: Camera 330: 3-way display board
340: Power supply unit 350: Communication unit
360: Auxiliary notification light B: Bollard
B1: 1st bollard B2: 2nd bollard
B3: Third 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, 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) each have a plurality of detection sensors that detect the movement and speed of the vehicle. A speed detection unit installed;
Three first hazard detection data are detected using one or more detection data received from multiple detection sensors installed on three first danger detection lines (W11, W21, W31) and three second 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 hazard detection lines (W12, W22, W32), and based on the analysis information A control unit that generates traffic signals according to traffic hazard situations in three directions in the intersection area (A) of the three-way intersection;
A communication unit that is connected to the management server and receives weather information and traffic information; and
A plurality of bollards located outside the intersection area (A) of the three-way intersection and installed on each of the three-way roads, and displaying traffic signals for one or more vehicles attempting to enter the intersection area (A) of the three-way intersection under the control of the control unit; Including,
The control unit determines situation information for each analysis information, including analysis information analyzed through sensing data, including a predetermined storage area, three-way risk situation determination criteria based on the analysis information, and situation information to be displayed according to the risk situation decision criteria. Contains a situation table that does,
The situation table is configured so that the information set by the management server is changed or updated according to changes in the installation location and environment.
The situation table contains a plurality of bollards (B1, B2) for each risk situation determination information and risk situation determination information indicating a risk situation determined for each analysis information according to the risk situation determination criteria of one or more pieces of analysis information to be determined as a risk situation, and the risk situation decision criteria. , B3) Contains traffic signal information to be displayed on each,
Weather information includes temperature, humidity, fine dust concentration, and rain information, and the control unit changes the situation table based on the weather information.
When the first road (R1) is a three-way intersection that intersects at a close right angle to the second road (R2), when the user's vehicle enters the first road (R1), the first hazard detection device is installed on the opposite side of the driver's seat of the user's vehicle. When detection data is received from a plurality of detection sensors installed in the line (W11) and the second danger detection line (W12), the control unit determines the first speed in the first danger detection line (W11) of the first opponent vehicle from the detection data. (v1) and the second speed (v2) at the second danger detection line (W12) are determined, and the first speed (v1) is greater than or equal to the first critical speed (vc1) or the second speed (v2) is the first critical speed. When the second critical speed (vc2) is greater than the speed (vc1), the first bollard (B1) is controlled to display a traffic signal indicating left turn prohibition on the first bollard (B1) located on the first road (R1),
When the weather information indicates rainy or snowy weather, the control unit sets the first critical speed (vc1) lower than the first critical speed in clear weather, and sets the second critical speed (vc2) to the second critical speed in clear weather. By setting it lower, when the weather information indicates rainy or snowy weather, a three-way traffic situation notification system using bollards, characterized in that it increases the frequency of generating risk situation determination information to inform of risk. delete delete According to paragraph 1,
It further includes three cameras installed in three directions to film the road in three directions,
Three cameras capture one or more vehicles entering a three-way intersection, and the control unit detects the direction of each vehicle's turn signal light from the captured images, based on the direction of the user's vehicle's turn signal light and the direction of the other vehicle's turn signal light. A three-way traffic situation notification system using bollards, characterized in that it analyzes a risk situation and controls a plurality of bollards to display each traffic signal according to the analyzed risk situation. According to clause 4,
As a result of detecting the direction of each vehicle's turn signal light from the captured image, the control unit determines that (a) the turn signal light of the first other vehicle entering the second road (R2) in the direction of the intersection area (A) of the three-way intersection is the left turn signal light; In the case where the turn signal of the user's vehicle is a left turn signal, and (b) the turn signal of the second opponent's vehicle entering the intersection area (A) of the three-way intersection from the opposite direction to the first opponent's vehicle is not detected, the user's vehicle If the turn signal is a left turn signal,
A three-way traffic situation notification system using bollards, characterized in that the entry ban is displayed on all of the plurality of bollards. According to clause 4,
As a result of detecting the direction of each vehicle's turn signal light from the captured image, the control unit determines that the turn signal light of the first opposing vehicle is the left turn signal light, and that the first opposing vehicle entering the intersection area (A) of the three-way intersection from the opposite direction to the first opposing vehicle 2 A three-way traffic situation notification system using bollards, characterized in that when the entry of an opposing vehicle is detected, the left turn is prohibited on the second bollard (B2) and the third bollard (B3) is controlled to display no entry. According to clause 4,
The control unit determines the type of one or more vehicles entering in at least one direction of the first road (R1) and the second road (R2) from the captured image, and the type of the determined one or more vehicles is the type of the first road (R1). And when it is determined that the second road (R2) is of a type that is not possible to pass through, a three-way traffic situation notification system using bollards, characterized in that control is displayed so that entry is prohibited on all of the plurality of bollards.

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