KR20160092959A - Method of preventing traffic accidents in crossroad for signal violation and overspeed, and system of the same - Google Patents

Abstract

The present invention relates to a method for preventing traffic accidents in an intersection and a system thereof. When signals change abruptly near an intersection, a vehicle approaching the intersection after a straight or left turn signal at the intersection frequently crashes into another vehicle entering the intersection after receiving a signal in another road while entering the intersection without being able to stop at a stop line of the intersection due to the acceleration of the vehicle. To solve the problem, an intersection traffic accident prevention system according to the present invention is configured to maintain a red signal of traffic lights in a second road or a second road and a third road of the intersection for a predetermined period and then switch to a direct or left turn signal after vehicles in a first road pass into an intersection when sensing a vehicle traveling toward the intersection at a speed equal to a predetermined speed after traffic lights in a first road of the intersection turn to red. The present invention can dynamically delay or change the traffic lights in an intersection by a speeding vehicle approaching the intersection while ignoring the signals in the intersection, thereby preventing traffic accidents in the intersection due to speeding or ignoring signals.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for preventing traffic accident at an intersection due to overspeed and signal violation,

The present invention relates to a method and system for preventing an intersection traffic accident caused by an overspeed and a signal violation, and more particularly, to a method and system for preventing a traffic accident at an intersection by detecting an overspeed vehicle that violates a signal at an intersection and rushes toward an intersection, The present invention relates to an intersection traffic accident prevention method and system for preventing traffic accident caused by overspeed and signal violation at an intersection by changing control.

Today, at intersections, traffic accidents frequently occur when vehicles attempting to pass through an intersection without being able to find a vehicle entering from another direction are colliding with other vehicles. Particularly, when the driver watches the straight ahead signal of the vehicle signal at the intersection of three-way or intersection, he / she must run at speed and stop the vehicle at the stop line when the signal immediately before the intersection turns yellow. However, most vehicles pass the intersection at high speed . At this time, a vehicle that receives a left-turn signal from another lane and enters the intersection ignores the signal, causing a collision with a vehicle that goes straight ahead. As such, although traffic accidents caused by traffic violation vehicles at intersections are increasing the number of accidents every year, there is no clear method to solve them.

Korean Registered Patent No. 10-1412214 (Registered on June 19, 2014) Korean Registered Patent No. 10-1334829 (Registered on November 25, 2013)

SUMMARY OF THE INVENTION In order to solve the above problems, an object of the present invention is to provide a vehicle speed control system and a control method thereof, which are capable of detecting a speeding vehicle running at an intersection and running toward an intersection, And to provide a method and system for preventing traffic accidents at an intersection that can prevent a traffic accident caused by a violation.

It is another object of the present invention to provide a vehicle control system and a control method thereof, which can prevent a vehicle running straight from an intersection from approaching an intersection when a straight ahead or a left turn signal arrives at an intersection and suddenly changes to an orange or red signal. The present invention provides a method and system for preventing a traffic accident at an intersection that can prevent a collision with a vehicle that can not stop at a stop line and pass through an intersection as it is and receives a signal from another roadway and enters an intersection.

Another object of the present invention is to provide a vehicle in which a vehicle signal lamp of a first road on an intersection turns to an orange or a red traffic light and the vehicle rushes beyond a predetermined speed toward an intersection or enters an intersection or enters an intersection The vehicle signal lamps of the second roads or the second and third roads of the intersection are detected to be a red signal for a predetermined period of time, and if the speed of the vehicle sensed within a predetermined distance of the first roads after a predetermined time exceeds a predetermined speed The vehicle signal lamp of the second or third roadway is changed to a straight ahead or a left turn signal so as to prevent a traffic accident caused by the speeding and signaling vehicle in the intersection. And a system therefor.

According to another aspect of the present invention, there is provided a vehicular traffic signal detecting apparatus for detecting a speeding vehicle and a signal-violating vehicle at an intersection through a radar sensor or a lidar sensor, And to provide a method and system for preventing traffic accidents at an intersection that can prevent traffic accidents caused by speeding and signal violation at an intersection.

According to another aspect of the present invention, there is also provided a traffic congestion control method for a vehicle, the method comprising the steps of: when a vehicle entering the intersection is sensed after the vehicle signal lamp of the intersection, And changes a vehicle signal lamp of the second or third road map to a straight ahead or a left turn signal according to a traffic light control method, and a system thereof.

It is another object of the present invention to provide a vehicle control apparatus and a control method of a vehicle in which when a vehicle signal lamp of a straight ahead or left turn signal at an intersection is changed to a yellow or red traffic light, In the case of a lane, if there is no entry or movement of the vehicle within a predetermined distance, and there is no vehicle entering or stopping or moving on the intersection, the vehicle signal lamps of the intersection are sequentially operated in accordance with the traffic light control method, And to provide a system and method for preventing traffic accidents at an intersection.

It is another object of the present invention to provide a method of driving a vehicle in which a vehicle signal lamp of a first road map of an intersection is converted into an orange or red signal in a straight ahead or left turn signal, A traffic accident prevention method and system for preventing traffic accidents caused by a vehicle with a traffic violation at an intersection by controlling the vehicle traffic lights of the traffic lights or the second and third traffic lights to be sequentially changed in accordance with the traffic light control method .

According to another aspect of the present invention, there is provided a method of controlling a traffic light of an intersection, the method comprising: when a traffic light of an intersection changes according to a traffic light control method, a red signal is turned on or blinked in the middle of a straight line, And to provide a method and system for preventing traffic accident at an intersection that can prevent a traffic accident.

It is another object of the present invention to provide a method and apparatus for preventing traffic accident caused by predicted departure from an intersection by turning on or flashing a red signal again for a predetermined time before a vehicle signal light of an intersection changes from a red signal to a straight- And to provide a system and method for preventing traffic accidents at an intersection.

Another object of the present invention is to provide a traffic accident prevention method and a traffic accident prevention method which can output a warning sign or a warning sound to a driver of a vehicle through a sign board or a speaker when a vehicle or a signal- And to propose the system.

The solution to the problem of the present invention is not limited to those mentioned above, and other solutions not mentioned can be clearly understood by those skilled in the art from the following description.

According to another aspect of the present invention, there is provided a traffic accident prevention method for an intersection according to the present invention, comprising the steps of: (a) when a vehicle signal lamp of a first road map of an intersection is converted into a red signal from a straight- Detecting the speed of the vehicle entering within a predetermined distance of the first road, detecting whether the vehicle is moving and stopping near the intersection, detecting a vehicle entering the intersection and an entering vehicle; (b) when a vehicle that rides over a predetermined speed toward an intersection within a predetermined distance of the first road map, enters a road intersection, or enters a road intersection is detected, the second road map or the second road map Maintaining the vehicle signal lamp of the vehicle as a red signal for a predetermined period of time; And (c) if the speed of the vehicle sensed within a predetermined distance of the first driveway through the detection sensor after the predetermined time of the step (b) is reduced or stopped to a predetermined speed or less or there is no entry of the vehicle, 2 or the third road signal to a straight forward or leftward turn signal.

The method for preventing an intersection signal traffic accident may further comprise the steps of: (d) judging a traffic congestion when a vehicle entering the intersection is detected through the detection sensor after a predetermined time in the step (b) And changing the vehicle signal lamp of the vehicle to a straight forward or leftward turn signal.

In the step (b), the predetermined speed may be a braking speed or a limiting speed within a braking distance of the vehicle or a speed of 20 to 30 km.

In the steps (b) and (c), the predetermined time may be the time required for the vehicle running at the predetermined speed or more detected by the detection sensor to pass through the intersection, 5 seconds. ≪ / RTI >

The method for preventing an intersection traffic accident may further comprise the steps of: when a vehicle running at a predetermined speed or higher toward the intersection or entering the intersection or entering the intersection is detected on the first road map, To the vehicle driver of the second and third roads waiting on the road, a danger or warning character including "STOP" and "intersection entry prohibition" through the electric signboard provided on each roadway.

As a means for solving the above-mentioned technical problems, an intersection traffic accident prevention system according to the present invention comprises: a vehicle traffic light installed in each traffic road of an intersection with three or more distances; The vehicle traffic light is installed in a traffic light together with the vehicle traffic light. It detects the speed of the vehicle entering the intersection at a predetermined distance, detects whether the vehicle moves and stops near the intersection, Detection sensor; And a control unit for sensing the speed of the vehicle entering the first roadway through the detection sensor when the vehicle signal lamp of the first roadway of the intersection is converted into a red signal from the straight ahead or the left turn signal, The vehicle signal lamps of the other second roads or the second and third roads of the intersection are maintained as a red signal for a predetermined period of time when the vehicle is running at a speed higher than the predetermined speed or when a vehicle entering the intersection or entering the intersection is detected, If the speed of the vehicle detected within a predetermined distance of the first road map through the detection sensor is decelerated or stopped to a predetermined speed or lower or there is no entry of the vehicle, the vehicle signal lamp of the second or third road map is outputted as a straight- When a vehicle entering the intersection is detected through the detection sensor after a predetermined time, Determined by the control unit to change the second or the vehicle light of the third car to go straight or turn signal, it may be configured to include a.

The detection sensor may be any one of a radar sensor, a rider sensor, a laser sensor, an infrared sensor, an optical sensor, an image sensor, a surveillance camera, and a loop detector.

Wherein the intersection traffic accident prevention system is installed in a traffic light together with the vehicle traffic light, and when a vehicle that rides over a predetermined speed toward the intersection in the first road map, enters the intersection or enters the intersection is detected, An electric sign board for outputting a danger or warning character including "STOP" and "prohibition of intersection entry" to the vehicle driver of the roadway and the vehicle driver of the second and third roads waiting for a signal at the intersection; And a solar panel installed in the signal lamp supporter or the signal lamp, and converting solar energy into electrical energy and storing the electrical energy in a storage battery.

Here, the control unit may use the power source of the battery as a primary power source of the vehicle signal lamp, the detection sensor, and the electric signboard, and may use a commercial power source as a secondary power source when the power source of the battery is insufficient.

According to the present invention, it is possible to prevent a traffic accident caused by speeding and signal violation at an intersection by actively delaying or changing a vehicle traffic light of an intersection by detecting an overspeed vehicle that violates a signal at an intersection and rushes toward an intersection.

In addition, when a vehicle running straight ahead or left in three-way intersections receives a straight ahead or left-turn signal, and a vehicle that is running toward the intersection suddenly changes to orange or red when the vehicle approaches the intersection, the vehicle can not stop at the intersection's stop line It is possible to prevent collisions with vehicles entering the intersection while passing through and receiving signals from other roads.

In addition, when a vehicle in which the vehicle signal lamp of the first road on the intersection is changed to an orange or red traffic light, a vehicle running at a predetermined speed or exceeding a predetermined speed toward the intersection or entering the intersection is detected, 2 and the third road map is maintained as a red signal for a predetermined time, and if the speed of the vehicle sensed within a predetermined distance of the first road map after a predetermined time is reduced or stopped to a predetermined speed or less or there is no entry of the vehicle By changing the vehicle signal lamp of the second or third road view to a straight ahead or left turn signal, it is possible to prevent a traffic accident caused by a speeding and signal violating vehicle at an intersection.

It is also possible to delay or change the vehicle traffic light at an intersection by sensing speeding vehicles and signaling vehicles at an intersection through a radar sensor or a lidar sensor, Can be prevented.

When the vehicle entering the intersection is detected even after the vehicle signal lamp of the intersection or the traffic signal of the second and third roads is maintained as the red signal for a predetermined time, it is determined that the traffic is congested, The vehicle traffic light of the intersection can be prevented from being overspeed and traffic accident due to signal violation by changing the signal to the straight ahead or left turn signal according to the traffic light control method.

When a vehicle signal of a straight ahead or left turn signal is changed to a yellow or red traffic light at an intersection, the vehicle is completely stopped at the stop line of each driveway, and in the case of a lane without a stop line, If there is no movement, and there is no moving vehicle entering or stopping on the intersection, the vehicle signal lamps of the intersection are sequentially operated according to the traffic light control method, thereby preventing the traffic accident caused by the speeding and signal violating vehicle at the intersection.

Further, it is also possible that the vehicle signal lamp of the first road map of the intersection is waiting for a signal at the intersection after a predetermined time after the straight or left turn signal is converted into the orange or red signal, or the vehicle signal lamp of the second and third road map It is possible to prevent a traffic accident caused by a vehicle that is a signal-violating vehicle at an intersection in advance.

In addition, when a vehicle signal lamp of an intersection is changed according to a traffic light control method, a red signal is turned on or blinked in the middle of a straight line, a left turn, and a direct line signal, thereby preventing a traffic accident caused by the predicted departure at an intersection.

In addition, it is possible to prevent a traffic accident caused by the predicted departure at the intersection by turning on or blinking the red signal again for a predetermined time before the vehicle signal lamp of the intersection changes from the red signal to the straight ahead or left turn signal.

In addition, when a vehicle or a signal-violating vehicle running at high speed is ignored at an intersection, if a vehicle or a signal-violating vehicle is detected, a warning sign or a warning sound is output to the driver through a sign board or a speaker.

The effects of the present invention are not limited to those mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the following description.

1 is a perspective view of an intersection traffic accident prevention system according to a first preferred embodiment of the present invention;
Fig. 2 is a plan view of Fig. 1
3 is a block diagram of an intersection traffic accident prevention system according to a second preferred embodiment of the present invention
Fig. 4 is a diagram showing the configuration of Fig. 3
5 is a block diagram of an intersection traffic accident prevention system according to a third preferred embodiment of the present invention
Fig. 6 is a diagram showing the configuration of Fig. 5
7 is a block diagram of an intersection traffic accident prevention system according to a fourth preferred embodiment of the present invention
8 to 10 are views showing the position and operation of the sensing sensor 30 used in the intersection traffic accident prevention system of the present invention,
8 and 9 are views showing a detection sensor 30 installed on the upper part of a traffic light,
10 is a view showing the detection sensor 30 installed on both sides of the roadway.
11 is a flowchart illustrating an intersection traffic accident prevention method according to a preferred embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly explain the present invention in the drawings, parts not related to the description are omitted, and like parts are denoted by similar reference numerals throughout the description of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

First Embodiment of Intersection Traffic Accident Prevention System

FIG. 1 is a perspective view of an intersection traffic accident prevention system according to a first preferred embodiment of the present invention, and FIG. 2 is a plan view of FIG. 1.

1 and 2, the first embodiment of the intersection traffic accident prevention system according to the present invention includes a detection sensor 30, a vehicle signal lamp 40, and a control unit (not shown in FIG. 4, 90) .

The detection sensor 30 may be installed in a traffic light installed in each of the roads 11 to 14 entering the intersection 50. Although the intersection 50 shows the intersection intersection in FIGS. 1 and 2, the intersection 50 may be formed by an intersection such as a three-way, a short distance, and a six-way street.

The detection sensor 30 detects the speed of the vehicle entering the intersection 50 within a predetermined distance and detects the speed of the vehicle in the vicinity of the intersection 50, Whether or not the vehicle is moving and stopping, and the vehicle entering the intersection 50 and the entering vehicle.

The detection sensor 30 may be any one of a radar sensor, a lidar sensor, a laser sensor, an infrared sensor, an optical sensor, an image sensor, a surveillance camera, and a loop detector.

Here, the radar sensor senses and identifies the vehicle and the person using radar detection, and senses the speed and movement of the vehicle, whether it is stopped, the stop position, the size of the vehicle, and the distance to the vehicle. The radar sensor may be constituted by at least one or more sensors, and may continuously track a vehicle or person moving or stopping in a detectable region.

For example, the radar sensor transmits a radar signal (for example, a laser beam), detects and identifies a vehicle and a person using a radar signal reflected and reflected, and calculates a distance And detects the speed, motion, stop state, stop position, vehicle size, and the like of the vehicle through the magnitude and temporal change of the radar signal received and reflected. Here, the radar sensor may include a beam emitting unit that emits a laser beam, and a beam receiving unit that receives the laser beam reflected after being emitted.

The radar sensor senses and identifies a vehicle and a person by using a wireless signal reflected and reflected by transmitting a radio signal (for example, a high frequency signal for a radar), and detects the speed and movement of the vehicle, , The size of the vehicle, the distance to the vehicle, and the like. Here, the radar sensor may include a radar transmitter that radiates a high frequency signal for a radar into the air, and a radar receiver that receives the high frequency signal reflected after being radiated. At this time, the time difference between the radar time of the radar transmitter and the receipt time of the radar wave can be detected to detect and identify the vehicle and the person, and the speed and movement of the vehicle, the stopping position, the stop position, .

The monitoring sensor 30 may be a rider sensor. The rider sensor senses a vehicle and a person by analyzing the time and the waveform of the laser light reflected from the light source, and detects the speed and movement of the vehicle, the stopping position, the stop position, the vehicle size, . The rider sensor may be constituted by at least one or more sensors and may continuously track a vehicle or person moving or stopping in a detectable region.

The rider sensor may include a laser transmitting unit that emits laser light into the air, and a laser receiving unit that reflects the laser light and receives the returned laser light. At this time, the time difference is determined between the divergence time of the laser transmitting unit and the receiving time of the laser receiving unit to detect and identify the vehicle and the person, and to detect the speed and movement of the vehicle, stopping position, stop position, .

The surveillance sensor 30 senses the speed of the vehicle running toward the intersection 50 in the surveillance area in real time when the vehicle signal lamp 40 changes from the straight ahead or left turn signal to the yellow or red signal. Then, the driver continuously senses whether the vehicle stops at the intersection (50) or the stop line (23) toward the intersection (50).

The surveillance area of the surveillance sensor 30 monitors the speed and movement of the vehicle and the suspension state of the vehicle from the stop line 23 of the intersection 50 or the intersection 50 to a predetermined distance in front of the intersection 50 . At this time, when the vehicle signal lamp 4 changes from the straight ahead or left turn signal to the yellow or red signal, the monitoring sensor 30 monitors the speed, motion, and stop state of the vehicle running toward the intersection 50 do.

When the vehicle signal lamp 40 changes from the straight ahead or left turn signal to the yellow or red signal, the monitoring sensor 30 determines whether the speed of the vehicle running toward the intersection 50 in the surveillance region exceeds a predetermined speed . At this time, the predetermined speed may be a braking speed or a limiting speed within a braking distance of the vehicle or a speed of 20 to 30 km. At this time, the braking distance of the vehicle refers to the distance traveled from the start of the braking operation to the complete stop of the braking vehicle.

For example, assuming that the braking distance to the stop line 23 of the intersection 50 is 10 m when the speed of the vehicle is 60 km, the monitoring sensor 30 detects the distance from the stop line 23 of the intersection 50 May be configured to monitor the speed, motion and stopping state of the vehicle running toward the intersection 50 at a distance of at least 10 meters or more.

The signal lamp provided at the intersection 50 serves to control the vehicle signal lamps 40 of the respective vehicles 11 to 14 entering the intersection 50. The signal lamp of the intersection 50 includes a signal lamp 41 vertically installed around the intersection 50, a signal lamp supporter 42 horizontally installed on the signal lamp supporter 41, And a vehicle signal lamp 40 installed horizontally.

The vehicle signal lamp 40 may include a red traffic light, a yellow traffic light, a green traffic light, and a left turn traffic light.

When the vehicle signal lamp 40 of the first map of the intersection 50 is converted into a red signal in the straight ahead or left turn signal, the control unit (not shown in FIG. 4) When the vehicle traveling at a speed higher than the predetermined speed toward the intersection 50 or entering the intersection 50 or entering the intersection 50 is sensed, The vehicle signal lamp 40 of the second road map or the second road map 40 of the intersection 50 or the second and third road map is maintained as a red signal for a predetermined period of time, The vehicle signal lamp 40 of the second or third road map is changed to the straight ahead or the left turn signal if the speed of the vehicle sensed within a predetermined distance is decelerated or stopped below the predetermined speed or there is no entry of the vehicle. When a vehicle entering the intersection is detected through the detection sensor 30 after a predetermined time, it is determined that the traffic is congested, and the vehicle signal lamp of the second or third road map is changed to a straight ahead or left turn signal.

The control unit may control the vehicle 50 such that the vehicle signal lamp 40 on the roadway waiting for the signal at the intersection 50 switches from the red traffic light to the straight ahead or left turn signal light, Controls that the vehicle signal light first changes to an orange or red traffic light. This is because the vehicle entering the intersection 50 after receiving the straight ahead or left turn signal is turned into the yellow traffic light before entering the intersection 50 but ignores it and enters the intersection 50 as it is, 50 in order to avoid collision with the vehicle.

The control unit determines whether the vehicle on the road where the orange or red traffic light has changed to the stop line 23 of the intersection 50 is entering the braking distance or more based on the signal of the detection sensor 30. At this time, when the vehicle is entering the intersection 50 at a braking distance or more, the vehicle signal lamp 40 waiting for the straight ahead or left turn signal light is maintained or delayed by the red signal light for a predetermined period of time, . At this time, the time during which the red traffic light is maintained or delayed can be set to the time when the vehicle passing through the intersection 50 is approaching the intersection 50 at the speed exceeding the braking distance.

For example, if it takes 2 to 5 seconds for a vehicle entering the intersection 50 to pass through the intersection 50 at a speed higher than the braking distance, the vehicle signal lamp 40 waiting for the traffic light at the intersection on another roadway, May be controlled to be converted to a straight ahead or left turn signal after holding or delaying the red traffic light for 2 to 5 seconds or more.

Meanwhile, the control unit may control the speed of the vehicle running toward the intersection 50 in a state where the vehicle signal lamp 40 of the intersection 50 is turned to the orange or red traffic light, It can also be set. At this time, if the controller detects the speed of the vehicle through the speed sensing camera 30 and then rushes toward the intersection 50 at a speed higher than the speed limit, the control unit stops the vehicle signal lamp 40 waiting for the signal on the other road for a predetermined time It can be controlled so that the next traffic light is converted after it is maintained or delayed by the red traffic light.

Therefore, the intersection traffic accident prevention system according to the first embodiment of the present invention is a system in which a vehicle entering at a braking distance, a limited speed, or a speed higher than a predetermined speed from another roadway to an intersection before a vehicle signal light of an intersection turns into a straight ahead or left- It is possible to prevent a traffic accident caused by a vehicle that is a signal-infringing vehicle at an intersection by controlling the red traffic light to be changed to a straight ahead or left turn signal after holding a red traffic light for a predetermined time.

Second Embodiment of Intersection Traffic Accident Prevention System

FIG. 3 is a block diagram of an intersection traffic accident prevention system according to a second preferred embodiment of the present invention, and FIG. 4 is a block diagram of FIG.

3 to 4, the second embodiment of the intersection traffic accident prevention system according to the present invention includes the detection sensor 30, the vehicle signal lamp 40, the electric sign board 60, and the control unit 90, .

The second embodiment of the intersection traffic accident prevention system is the same as the first embodiment except that the electric sign board 60 is additionally provided in the first embodiment.

The electric sign board 60 may be horizontally installed on the signal lamp supporter 42 together with the vehicle signal lamp 40 and may be constituted by an LED panel. When the vehicle is running at a speed equal to or more than the braking distance or at a speed limit or a predetermined speed or more than the braking distance toward the intersection 50 in the traffic light changed to the red or yellow traffic light, Quot; stop " or the like. In addition, the vehicle that is waiting for a signal on the other roadway of the intersection 50 is called " DANGER! Stop "," danger! Crossing vehicle entering ", and so on.

In addition, the electric signboard 60 plays a role of preventing overspeed by displaying the speed of the vehicle running on the road on which the electric signboard 60 is installed in real time after the vehicle signal lamp 40 changes the straight ahead or left turn signal light.

When the vehicle is running at a speed higher than the braking distance or at a speed higher than the braking distance toward the intersection, the controller 90 instructs the vehicle on the roadway where the next traffic light turns to a straight ahead or left turn signal light, 60) through "Danger! Stop " or the like. Further, it is also possible for the vehicle waiting for a signal on the other roadway of the intersection 50 via the electric sign board 60 to " Danger! Stop, "" danger! Crossing vehicle entering ", and so on. Also, the controller 90 controls the vehicle signal lamp 40 to display the speed of the vehicle running on the road after the straight ahead or left turn signal lamp is changed, on the electric sign board 60 in real time.

In the intersection traffic accident prevention system according to the second embodiment of the present invention, when the vehicle is running at a predetermined speed or more toward the intersection in the traffic light changed to the red or yellow traffic light, the vehicle traffic light on the other roads For a predetermined period of time, and then, through the electric sign board 60 of each driveway, Quot; stop " or the like, the traffic accident caused by the vehicle with a signal violation at the intersection can be prevented in advance.

Third Embodiment of Intersection Traffic Accident Prevention System

FIG. 5 is a block diagram of an intersection traffic accident prevention system according to a third preferred embodiment of the present invention, and FIG. 6 is a block diagram of FIG.

5 to 6, the third embodiment of the intersection traffic accident prevention system according to the present invention is provided with a detection sensor 30, a vehicle signal lamp 40, an electric sign board 60, a solar panel 70, 71, and a control unit 90. [

The third embodiment of the intersection traffic accident prevention system is the same as the first and second embodiments except that the solar panel 70 and the battery 71 are additionally provided in the second embodiment.

The solar panel 70 may be installed at the upper end of the signal lamp fixture 41 or at the signal lamp supporter 42. The solar panel 70 converts solar energy into electrical energy and stores it in the storage battery 71.

The control unit 90 controls the power stored in the battery 71 to be used as a primary power source for the detection sensor 30, the vehicle signal lamp 40 and the electric sign board 60, The power consumption can be reduced by controlling the general commercial power supply to be used as the secondary power supply.

Fourth Embodiment of Intersection Traffic Accident Prevention System

7 is a block diagram of an intersection traffic accident prevention system according to a fourth preferred embodiment of the present invention.

7, the fourth embodiment of the intersection traffic accident prevention system according to the present invention includes the detection sensor 30, the vehicle signal lamp 40, and the electric sign board 60, 70), a battery (see 71 in FIG. 6), and a control unit (see 90 in FIG. 6).

The fourth embodiment of the intersection traffic accident prevention system differs from the first to third embodiments in that the intersection 80 is different from a three-way T-shaped or Y-shaped intersection, It is the same as the example.

Embodiment of the detection sensor 30

8 to 10 are views showing the position and operation of the detection sensor 30 used in the intersection traffic accident prevention system of the present invention, and FIGS. 8 and 9 are views showing the detection sensor 30 installed at the upper part of the traffic light And FIG. 10 is a view showing the detection sensor 30 installed on both sides of the roadway.

8 and 9, the detection sensor 30 may be installed above a traffic light. The detection sensor 30 is composed of at least one or more sensors, and senses the speed and position of the vehicle approaching the crosswalk, and the movement and stop position of the vehicle in the vicinity of the crosswalk.

Fig. 11 can be configured to detect the vehicle entering the intersection and the vehicle passing through the intersection by arranging the detection sensor 30 on both sides of the roadway, and may be constituted by at least one or more. The sensing sensor 30 may be configured to sense the speed and position of the vehicle, and the movement and stop position of the vehicle in the vicinity of the intersection.

Here, the detection sensor 30 may be any one of a radar sensor, a lidar sensor, a laser sensor, an infrared sensor, an optical sensor, an image sensor, a surveillance camera, and a loop detector.

Examples of methods for preventing traffic accidents at intersections

11 is a flowchart illustrating an intersection traffic accident prevention method according to the first to fourth embodiments of the present invention.

A method of preventing an intersection traffic accident according to the first to fourth embodiments of the present invention will now be described with reference to FIG.

First, when the vehicle signal lamp 40 of the first road map of the intersections 50 and 80 is converted into a red signal in the straight ahead or left turn signal, the vehicle signal lamp 40 enters the predetermined distance of the first road map through the detection sensor 30 (Step S110). The controller 50 senses the speed of the vehicle, whether the vehicle is moving and stopping near the intersections 50 and 80, and the vehicle entering the intersections 50 and 80 and the entering vehicle.

Here, the detection sensor 30 may be any one of a radar sensor, a lidar sensor, a laser sensor, an infrared sensor, an optical sensor, an image sensor, a surveillance camera, and a loop detector.

When a vehicle that runs at a predetermined speed or approaches the intersections 50 and 80 within a predetermined distance of the first road map or enters the intersections 50 and 80 or a vehicle that enters the intersections 50 and 80 is detected, The vehicle signal lamp 40 of the second road map or the second road map or the third road map of the intersections 50 and 80 is maintained as a red signal for a predetermined period of time (step S120).

In this case, when a vehicle running at a speed higher than a predetermined speed toward the intersections (50, 80) or entering the intersections (50, 80) or entering the intersections (50, 80) The vehicle driver of the first road and the driver of the second and third roads awaiting a signal at the intersections 50 and 80 are informed of danger or warning characters including "STOP "," It is possible to prevent a traffic accident caused by overspeed and signal violation by outputting through the electric sign board 60 installed in the roadway.

If the speed of the vehicle sensed within a predetermined distance of the first driveway through the detection sensor 30 after the predetermined time of the step S120 is reduced or stopped below a predetermined speed or there is no entry of the vehicle, The vehicle signal lamp 40 of the third road is changed to a straight ahead or leftward turn signal (step S130).

In the above steps S120 and S130, the predetermined speed may be configured to be a braking speed or a limiting speed within the braking distance of the vehicle. Also, the predetermined speed may be a speed of 20 to 30 km.

In the above-described steps S120 and S130, the predetermined time is a vehicle running at a predetermined speed or more sensed by the detection sensor 30, or a vehicle in front of or at the rear of the intersections 50, 80). ≪ / RTI > Further, the predetermined time may be set to a time of 2 to 5 seconds.

Finally, when a vehicle entering the intersections 50 and 80 is detected through the detection sensor 30 after a predetermined time of the step S130, it is determined that the vehicle is in traffic congestion, 40) to a straight forward or leftward turn signal in accordance with a typical signal light control method (step S140).

As described above, the method and system for preventing an intersection traffic accident according to the present invention can prevent a vehicle traffic light of an intersection from being turned to an orange or red traffic light, rushing over a predetermined speed toward an intersection, entering an intersection, When a vehicle entering the vehicle is detected, the vehicle signal lamps of the second roads or the second and third roads of the intersection are maintained as a red signal for a predetermined time, and after a predetermined time, The technical problem of the present invention can be solved by changing the vehicle signal lamp of the second or third road view to a straight ahead or left turn signal when the speed of the vehicle is decelerated or stopped to a predetermined speed or lower or there is no entry of the vehicle.

11 to 14: Driveway 21: Center line
22: lane 23: stop line
24: Crosswalk
30: Surveillance sensor (radar sensor or rider sensor)
40: Vehicle traffic light 41: Traffic light traffic light
42: Traffic light support 50: Intersection
60: electric sign board 70: solar panel
71: Battery 80: Intersection
90:

Claims (7)

(a) when the vehicle signal lamp of the first roadway of the intersection is converted into a red signal from the straight ahead or left turn signal, it senses the speed of the vehicle entering within a predetermined distance of the first roadway through the detection sensor, Detecting whether the vehicle is moving and stopping, detecting the vehicle entering the intersection and the entering vehicle;
(b) when a vehicle that rides over a predetermined speed toward an intersection within a predetermined distance of the first road map, enters a road intersection, or enters a road intersection is detected, the second road map or the second road map Maintaining the vehicle signal lamp of the vehicle as a red signal for a predetermined period of time; And
(c) if the speed of the vehicle detected within a predetermined distance of the first driveway through the detection sensor after the predetermined time of the step (b) is reduced or stopped to a predetermined speed or less, or the vehicle is not driven, Or changing the vehicle signal lamp of the third road to a straight ahead or left turn signal;
The method comprising the steps of:
The method according to claim 1,
The intersection signal violation traffic accident prevention method includes:
(d) if a vehicle entering the intersection is detected through the detection sensor after a predetermined time in the step (b), it is determined that the vehicle is in traffic jam, and the vehicle signal lamp of the second or third road map is changed to a straight ahead or left turn signal ;
The method comprising the steps of:
The method according to claim 1,
In the step (b), the predetermined speed is a braking speed or a limiting speed or a speed of 20 to 30 km within the braking distance of the vehicle,
In the steps (b) and (c), the predetermined time may be the time required for the vehicle running at the predetermined speed or more detected by the detection sensor to pass through the intersection, Set to a time of 5 seconds,
How to prevent traffic accidents at intersections.
The method according to claim 1,
The intersection traffic accident prevention method includes:
The vehicle driver of the first driveway and the second and third drive wheels that are waiting for a signal at the intersection when a vehicle that rides over a predetermined speed toward the intersection or enters the intersection or enters the intersection is detected in the first driveway A method of preventing traffic accidents at an intersection by outputting a danger or warning character including a "stop" and "prohibition of entering the intersection" to the driver of the roadway through the electric signboard installed on each roadway.
A vehicle traffic light installed in each traffic road of an intersection with three or more distances;
The vehicle traffic light is installed in a traffic light together with the vehicle traffic light. It detects the speed of the vehicle entering the intersection at a predetermined distance, detects whether the vehicle moves and stops near the intersection, Detection sensor; And
The control unit detects the speed of the vehicle entering the first roadway through the detection sensor and detects the speed of the vehicle entering the intersection when the vehicle signal lamp of the first roadway of the intersection is converted into a red signal from the straight ahead or left turn signal, The vehicle signal lamps of the second roads or the second roads and the third roads of the intersection are maintained as a red signal for a predetermined period of time, and when the vehicle arrives at the intersection, If the speed of the vehicle sensed within a predetermined distance of the first road map through the detection sensor is decelerated or stopped to a predetermined speed or lower or there is no entry of the vehicle, the vehicle signal lamp of the second or third road map is set as a straight- When a vehicle entering the intersection through the detection sensor is detected after a predetermined time, However the control of changing the second traffic light or a vehicle of the third car to go straight or turn left signal;
The intersection traffic accident prevention system.
6. The method of claim 5,
The detection sensor includes:
A radar sensor, a rider sensor, a laser sensor, an infrared sensor, an optical sensor, an image sensor, a surveillance camera, and a loop detector,
Intersection road accident prevention system.
6. The method of claim 5,
The intersection traffic accident prevention system includes:
And a control unit that is installed in a traffic light together with the vehicle traffic light and detects a vehicle that rides over a predetermined speed toward the intersection or enters the intersection or enters the intersection in the first road map, An electric sign board for outputting a danger or warning character including a "STOP" and "intersection entry prohibition" to the vehicle driver of the second and third roads waiting for a signal; And
And a solar panel installed in the signal lamp supporter or the signal lamp, for converting solar energy into electrical energy and storing the electrical energy in a storage battery,
Wherein,
Wherein the power source of the battery is used as a primary power source of the vehicle signal lamp, the detection sensor, and the electric signboard, and when the power of the battery is insufficient, a commercial power source is used as a secondary power source.

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