KR102823297B1 - Signal system for prevention of collision as an artificial intelligent at the intersection and crosswalk - Google Patents

Abstract

The present invention installs a plurality of speed measuring cameras in front of an intersection or crosswalk to compare the speed difference of approaching vehicles and determine whether to stop in front of the intersection or crosswalk, and also installs a camera that recognizes and distinguishes the turn signal (blinker) of a vehicle to recognize the turn signal (blinker) of the vehicle and recognizes in advance whether a vehicle approaching the intersection will make a left or right turn, and when a vehicle approaches the intersection and turns on its left turn turn signal (blinker) and enters the intersection late due to speeding when the signal light for the vehicle in question is yellow (amber), the present invention indicates to the traffic lights in front of vehicles waiting on the left side of the intersection that a vehicle is approaching with a signal light, and also notifies people crossing the crosswalk that a dangerous vehicle is approaching with a signal light and/or voice on the traffic lights on both sides of the crosswalk on the left side of the intersection to avoid a collision, and when a vehicle approaching the intersection turns on its turn signal (blinker) to make a right turn, the front camera recognizes and distinguishes the vehicle and indicates the vehicle on both sides of the crosswalk located in front and after the right turn. This relates to a collision avoidance signal system using artificial intelligence (AI) at intersections and crosswalks that can prevent collisions between vehicles and people by notifying of approaching vehicles with traffic lights and/or voices, and by controlling the green signal of the crosswalk to turn on late through artificial intelligence (AI) when the traffic light is yellow at an intersection or straight road and recognizing a vehicle that has entered the crosswalk too late due to speeding for a period of time sufficient to prevent a collision.

Description

{Signal system for prevention of collision as an artificial intelligent at the intersection and crosswalk}

The present invention relates to collision prevention at intersections and crosswalks using artificial intelligence (AI), and more specifically, to a collision prevention signal system using artificial intelligence (AI) at intersections and crosswalks that can prevent or prevent vehicle-to-vehicle or vehicle-to-people collisions by recognizing vehicles that have entered late or vehicles that run red lights in advance and reflecting this in signals in order to prevent collisions with vehicles or people on crosswalks at intersections.

LED traffic lights were previously limited to simple traffic lights, but recent technological advancements have seen many added functions.

The LED traffic lights provide functions such as remotely detecting whether the LED traffic lights are operating normally and allowing for quick repairs in case of problems with the LED traffic lights' lighting, as well as the ability to perform functions such as music broadcasting, guidance broadcasting, and surveillance through the CCTV and speakers attached to the LED traffic lights.

Moreover, with the recent development of ubiquitous technology, the network environment is improving to enable network access anywhere in the city, and this is accelerating the application of IT (Information Technology) to LED traffic lights placed in every corner of the city.

For this reason, intelligent LED traffic lights are being introduced on a trial basis, which attach sensors, cameras, etc. to LED traffic lights to monitor street conditions in real time and act as a hub to enable network connection.

However, when the traffic light at a crosswalk or intersection is yellow, vehicles that try to pass by at higher speeds to go straight or make a left turn, or vehicles that run red lights, often cause collisions between vehicles that pass late and pedestrians, or between vehicles that make a left turn late and vehicles waiting on the road to the left when the signal changes. In addition, when the crosswalk traffic light turns green or when crossing the traffic island to cross the crosswalk, collisions between vehicles approaching to make a right turn and pedestrians often occur due to carelessness of each other, so it is necessary to solve these problems.

Republic of Korea Public Patent Provision Patent No. 10-2016-0135597 Republic of Korea Patent No. 10-0907107 Republic of Korea Publication Patent No. 10-2015-0033080

Therefore, the present invention is to solve various disadvantages and problems of the above-mentioned conventional technology, and a plurality of speed measuring cameras and a vehicle direction indicator camera are installed in front of an intersection or crosswalk, and when the traffic light for the driving lane turns yellow, the speed of the vehicle is measured at the frontmost point (approximately 100 meters), and then measured again in front (approximately 30 meters) and compared with the speed, and if the vehicle approaches without reducing the speed, it is recognized as a vehicle that will pass through the intersection or crosswalk. Therefore, when entering the intersection or crosswalk late, the vehicle cannot stop immediately due to the inertia of the vehicle, so that when the crosswalk signal light turns green, a collision between vehicles and people is avoided, and the purpose is to provide a collision prevention signal system using artificial intelligence (AI) at an intersection and crosswalk that notifies the approach of a dangerous vehicle at the crosswalk signal light with a signal light and/or voice.

Also, when the green light of the crosswalk is on and people are crossing the crosswalk, drivers may run the signal due to drunk driving or carelessness, causing collisions between vehicles and people. In such cases, the purpose is to provide an AI-based collision prevention signal system at intersections and crosswalks that notifies approaching dangerous vehicles with signal lights and/or voices to avoid collisions between vehicles and people.

In addition, the purpose is to provide an artificial intelligence (AI)-based collision avoidance signal system at intersections and crosswalks that prevents collisions between vehicles and people by recognizing vehicles approaching too late at speed when the traffic light for the driving lane is yellow and turning the crosswalk's green light on a few seconds later.

The purpose is to provide an artificial intelligence (AI)-based collision avoidance signal system at intersections and crosswalks that detects vehicles making a late, speeding left turn when the traffic light for the driving lane at an intersection is yellow, and displays a signal to the traffic light in front of a vehicle waiting on the left road that a vehicle is approaching from the right road, so that the vehicle waiting on the left road can avoid a collision when the signal light changes and starts off.

In addition, the purpose is to provide an artificial intelligence (AI)-based collision avoidance signal system at intersections and crosswalks that prevents collisions between vehicles and people by recognizing vehicles turning right at intersections and notifying the approaching vehicles and the direction in which the vehicles will proceed through vehicle approach signal lights and/or voices at crosswalks located ahead and after the right turn.

In order to achieve the above object, the present invention comprises: a first vehicle speed measurement/turn signal detection camera (11, 18) for detecting at least one of the speed and the turn signal of vehicles entering an intersection from a first preset distance ahead of the vehicles entering the intersection; a second vehicle speed measurement/turn signal detection camera (12, 19) for detecting at least one of the speed and the turn signal of vehicles entering from a second distance ahead of the vehicles entering the intersection, which is relatively smaller than the first preset distance; a plurality of crosswalk signal lights (14, 15, 21, 22, 24, 25) installed around the intersection to control the driving of pedestrians; a plurality of driving lane signal lights (10, 16, 17, 23) installed around the intersection to control the driving of vehicles; And the driving speed and the blinking data of the direction indicators of the vehicles detected by the first vehicle speed measurement/turn signal detection camera (11, 18) and the second vehicle speed measurement/turn signal detection camera (12, 19) are collected, and the current signals of the plurality of crosswalk signal lights (14, 15, 21, 22, 24, 25) and the current signals of the plurality of driving lane signal lights (10, 16, 17, 23) are compared, and if it is determined that the vehicle that detected the driving speed is a vehicle that will pass through the intersection or crosswalk, the current signals of the plurality of crosswalk signal lights (14, 15, 21, 22, 24, 25) and the current signals of the plurality of driving lane signal lights (10, 16, 17, 23) are compared to prevent vehicle-to-vehicle or vehicle-to-person collisions. The present invention provides a collision avoidance signal system utilizing artificial intelligence (AI) at an intersection and crosswalk, characterized by including a collision avoidance signal control device (100) utilizing artificial intelligence (AI) that controls the current signals of signals (21, 22, 24, 25) and the current signals of multiple driving lane signal lights (10, 16, 17, 23) to be extended for a preset period of time.

Here, the collision avoidance signal system utilizing artificial intelligence (AI) at the intersection and crosswalk is characterized by further comprising an intersection center camera (13) installed at the center of the intersection to perform at least one of speed measurement, turn signal detection, and vehicle movement path tracking of vehicles entering the intersection from a signal direction in which entry is permitted.

And the collision prevention signal control device (100) comprises a vehicle speed/direction crosswalk signal calculation unit (110) that calculates the signal operation time of a crosswalk signal light existing in the direction of travel according to the vehicle speed and the vehicle turn signal, a vehicle speed/direction driving lane signal calculation unit (120) that calculates the signal operation time of a driving lane signal light existing in the direction of travel according to the vehicle speed and the vehicle turn signal, a memory unit (130) in which the signal operation times of the crosswalk signal light and the driving lane signal light are stored, a speaker unit (140) that outputs a warning sound or guidance sound for the current signals of the plurality of crosswalk signal lights (14, 15, 21, 22, 24, 25) when the vehicle that detected the driving speed is judged to be a vehicle that will pass through the intersection or crosswalk, so as to prevent a vehicle-to-person collision, a vehicle speed/direction crosswalk signal calculation unit (110), and a vehicle speed/direction driving lane signal calculation unit (120). Controlling the memory unit (130) and the speaker unit (140), collecting the driving speed and the blinking data of the turn signal of the vehicles detected by the first vehicle speed measurement/turn signal detection camera (11, 18) and the second vehicle speed measurement/turn signal detection camera (12, 19), comparing the signal operation times of the crosswalk signal and the driving lane signal stored in the memory unit (130), and if it is determined that the vehicle that detected the driving speed is a vehicle that will pass through the intersection or crosswalk, the current signals of the plurality of crosswalk signal lights (14, 15, 21, 22, 24, 25) and the current signals of the plurality of driving lane signal lights (10, 16, 17, 23) are used according to a preset program for vehicle-to-vehicle or vehicle-to-person collisions. It is characterized by including a collision avoidance signal control unit (AI) (150) that generates a signal for controlling the current signal of the driving lane signal lights (10, 16, 17, 23) to be selectively extended for a preset period of time to the plurality of crosswalk signal lights (14, 15, 21, 22, 24, 25) and the plurality of driving lane signal lights (10, 16, 17, 23).

And the first vehicle speed measurement/turn signal detection camera (11, 18) is characterized in that it distinguishes and recognizes the speed and turn signal (blinker) of a vehicle about 80 to 120 meters ahead driving in the direction approaching an intersection or crosswalk, and the second vehicle speed measurement/turn signal detection camera (12, 19) distinguishes and recognizes the speed and turn signal (blinker) of the vehicle again about 20 to 40 meters ahead of the intersection or crosswalk for the vehicle distinguished by the first vehicle speed measurement/turn signal detection camera (11, 18).

Meanwhile, the collision avoidance signal control device (100) is characterized in that, when the yellow signal among the current signals of the plurality of crosswalk signal lights (14, 15, 21, 22, 24, 25) and the current signals of the plurality of driving lane signal lights (10, 16, 17, 23) turns on, the speed of a vehicle attempting to pass through the intersection is measured and recognized by the first vehicle speed measurement/turn signal detection camera (11, 18), and then the speed is also measured and recognized by the second vehicle speed measurement/turn signal detection camera (12, 19), and if the speed does not decrease, the vehicle is determined to be passing through the intersection or crosswalk.

In addition, the collision prevention signal control device (100) is characterized by notifying the approach of a dangerous vehicle to the crosswalk signal light using at least one of the crosswalk signal light and the speaker unit (140) before the yellow signal light of the driving lane turns off or before the crosswalk signal light ahead changes to green when the vehicle is traveling in a straight direction at an intersection or a straight road.

And the above-mentioned collision prevention signal control device (100) is characterized in that, when a vehicle intends to make a left turn at an intersection, it indicates to vehicles waiting for a signal on the left road that a dangerous vehicle is approaching by using a traffic light in the driving lane, and also notifies the crosswalk signal on the left road of the approaching dangerous vehicle by using at least one of a crosswalk signal light or a speaker unit (140).

Here, the collision avoidance signal control device (100) is characterized by a method of notifying a dangerous vehicle at a high speed while entering late when the traffic light of the vehicle's driving lane is yellow, in which the speed is measured and recognized by the first vehicle speed measurement/turn signal detection camera (11, 18), and then the speed is also measured and recognized by the second vehicle speed measurement/turn signal detection camera (12, 19) and, if the speed does not decrease, the device recognizes the vehicle as a vehicle to pass and notifies people trying to cross the crosswalk of the dangerous vehicle through the traffic light of the driving lane or the crosswalk signal speaker unit targeting the vehicle waiting for the next signal.

And the collision avoidance signal control device (100) is characterized in that, after the first vehicle speed measurement/turn signal detection camera (11, 18) measures and recognizes the speed, if the second vehicle speed measurement/turn signal detection camera (12, 19) also measures and recognizes the speed and the speed does not decrease, the speed change and movement path of the vehicle that has been measured and recognized are tracked through the intersection center camera (13), and the vehicle enters the left road at the intersection and monitors whether the vehicle passes the crosswalk on the left road at a constant high speed, or if the vehicle reduces the speed to a set very low speed (safe speed level) while entering the left road, the signal lights of vehicles waiting on the left and the left crosswalk signal lights are also turned off, and the sound of the speaker unit (140) is turned off.

Meanwhile, when a dangerous vehicle, which enters late and attempts to pass at a speed higher than a certain level when the traffic light for the driving lane is yellow to pass through a crosswalk at an intersection or a straight road, is detected by the first vehicle speed measurement/turn signal detection camera (11, 18) and then detected by the second vehicle speed measurement/turn signal detection camera (12, 19) and the intersection center camera (13), the green traffic light of the crosswalk in the direction in which the vehicle is traveling is set to turn on late for a preset period of time, thereby avoiding collisions between vehicles and people.

In addition, in order to avoid a collision between a vehicle making a right turn at an intersection and a person crossing a crosswalk, after the first vehicle speed measurement/turn signal detection camera (11, 18) measures and recognizes the speed, the second vehicle speed measurement/turn signal detection camera (12, 19) recognizes a vehicle attempting to make a right turn, and further includes a vehicle approach signal light that informs the crosswalk signal lights on both sides of the crosswalk located ahead and after the right turn that the vehicle is approaching to make a right turn, and notifies the people crossing the crosswalk or waiting through the vehicle approach signal light and the speaker unit (140).

And the collision prevention signal control device (100) is characterized by controlling the signal lights of the lanes of driving of vehicles waiting on the left side of the intersection to notify the waiting vehicles of the risk of collision between vehicles at the intersection when the signals of the vehicles waiting on the left side change as a vehicle from the right side of the intersection makes a late left turn.

Meanwhile, in order to indicate the approach of a dangerous vehicle or a person crossing the crosswalk at the driving lane signal lights (10, 16, 17, 23), there is a signal light for indicating that a crosswalk is being crossed or a signal light for indicating that a dangerous vehicle is approaching below the direction signal lights and the green signal lights of the driving lane signal lights (10, 16, 17, 23), and when proceeding with a left turn signal just before the left turn signal light (52) or the green signal light (54) of the driving lane turns on, a separate person crossing indication signal light (53) is provided to indicate that a person is crossing the crosswalk on the left-hand side of the road, and when a dangerous vehicle approaches, a dangerous vehicle notification signal light (55) is further provided below the left turn signal light (52) and the green signal light (54) of the driving lane.

In addition, in order to indicate the approach of a dangerous vehicle or a person crossing the crosswalk on the driving lane signal light (10, 16, 17, 23), a separate person crossing indication signal light (53) is displayed immediately before the driving lane green signal light (54) turns on if a person is crossing the crosswalk ahead, and when a dangerous vehicle approaches, a dangerous vehicle warning signal light (55) is displayed under the driving lane green signal light (54).

Meanwhile, in the method of indicating danger in the driving lane signal lights (10, 16, 17, 23), the left turn signal light (52) or the driving lane green signal light (54) has the functions of the crosswalk person crossing indicator light (53) and the dangerous vehicle notification signal light (55) incorporated into the left turn signal light or green signal light, so that the left turn signal light or green signal light turns on for its original purpose, and when a person crosses the crosswalk or a vehicle enters, the original signal and the corresponding situation signal are displayed alternately.

And, when the left turn signal or green signal of the driving lane signal lights (10, 16, 17, 23) is turned on and operates respectively, and when the person passing signal light (53) and the dangerous vehicle warning signal light (55) that indicate a dangerous situation are turned on together, they operate while blinking to indicate a danger.

Meanwhile, in a method for notifying the approach of a dangerous vehicle at a crosswalk signal light (14, 15, 21, 22, 24, 25), a separate dangerous vehicle notification signal light is installed at the crosswalk signal light (14, 15, 21, 22, 24, 25), and even when the crosswalk signal light is green or the signal light is red, if a right-turning vehicle approaches, the vehicle approach notification is notified through at least one of the dangerous vehicle approach signal light (62) and the speaker unit (140).

And a method of displaying a vehicle approach notification signal light on a crosswalk signal light (14, 15, 21, 22, 24, 25), wherein a function is combined with a countdown display means (63) that displays the remaining time of the green signal of the crosswalk signal light as a countdown together with a dangerous vehicle approach signal light (62), so that when the dangerous vehicle approaches, a countdown number and a dangerous notification display are displayed alternately on one signal light, and two functions are displayed. A collision prevention signal system utilizing artificial intelligence (AI) at an intersection and crosswalk.

Meanwhile, as a method of displaying a vehicle approach notification signal light on a crosswalk signal light (14, 15, 21, 22, 24, 25), the crosswalk signal light is characterized in that the green signal light among the crosswalk signal lights includes a dangerous vehicle approach signal light function so that only the green signal light turns on and when a dangerous vehicle approaches, the dangerous notification sign is displayed alternately.

In addition, when displaying a dangerous vehicle approach signal light function together with a green signal light or countdown display means (63) of a crosswalk signal light (14, 15, 21, 22, 24, 25), the green signal light or countdown display means is displayed, and when a dangerous vehicle approaches, the dangerous vehicle approach signal light is displayed primarily, and then when the speed is lowered to a safe speed (low speed) set by the vehicle or when the vehicle passes the crosswalk, only the green signal light or countdown display means is displayed again.

According to an embodiment of the present invention, the following effects are achieved.

First, when the traffic light for the driving lane is yellow (amber) at an intersection or crosswalk on a straight road, a vehicle that enters late and enters at a high speed cannot stop immediately due to the inertia of the moving vehicle even if the traffic light changes to red, and thus a collision between the vehicle and a person occurs when the crosswalk traffic light turns green. In addition, when the green traffic light for the crosswalk is on and a driver runs a red light due to drunk driving or carelessness and crosses the crosswalk, a collision between the vehicle and a person occurs. However, this system has the effect of preventing collisions between vehicles and people by notifying people crossing or waiting on the crosswalk of a dangerous vehicle approaching with a traffic light and/or voice, so that people can avoid the vehicle, or by automatically turning the green traffic light on at the crosswalk a few seconds later.

Second, at an intersection, the traffic light for the driving lane is a left turn signal, and it recognizes a vehicle that is entering late and at a high speed in advance and notifies the signal lights in front of the vehicles waiting on the left road. Therefore, a collision may occur between a vehicle that is turning left late and at a high speed and a vehicle waiting on the left road that is about to depart when the signal changes but is unable to make a left turn and enters. However, the present invention system has the effect of preventing a collision by notifying the signal lights in front of the vehicles waiting on the left of an approaching dangerous vehicle.

Third, when the traffic light at an intersection is yellow, vehicles making a late left turn at high speed and people waiting for the green light at the crosswalk on the left side of the intersection are notified of the approach of dangerous vehicles with traffic lights and/or voices on both sides of the crosswalk when the light turns green, or the green light at the crosswalk turns on a few seconds later, which has the effect of preventing collisions between people and vehicles.

Fourth, it has the effect of preventing collisions between vehicles and people by recognizing vehicles turning right at intersections in advance and notifying people waiting or crossing the crosswalk located in front and after the right turn of a dangerous vehicle approaching with traffic lights on both sides of the crosswalk and/or by voice.

Figure 1 is a plan view of an example of an intersection where a collision avoidance signal system utilizing artificial intelligence (AI) is applied at an intersection and crosswalk according to the present invention.
Figure 2 is a traffic light in a collision prevention signal system using artificial intelligence (AI) at intersections and crosswalks according to the present invention, which has a traffic light attached to the driving signal to notify people crossing the crosswalk ahead or vehicles approaching the intersection to make a left turn.
Figure 3 is a drawing of an example of a signal light for approaching a dangerous vehicle to a crosswalk signal light in a collision avoidance signal system using artificial intelligence (AI) at an intersection and crosswalk according to the present invention.
FIG. 4 is a drawing showing an example of displaying the movement of a vehicle on a signal light indicating the approach of a dangerous vehicle in a collision avoidance signal system using artificial intelligence (AI) at an intersection and crosswalk according to the present invention.
FIG. 5 is an embodiment of a collision avoidance signal system utilizing artificial intelligence (AI) at intersections and crosswalks according to the present invention, in which a left turn signal light for a driving lane at an intersection and a left turn signal light are alternately displayed to indicate that a person is crossing at a crosswalk ahead.
FIG. 6 is an embodiment of a collision avoidance signal system utilizing artificial intelligence (AI) at intersections and crosswalks according to the present invention, in which a signal light indicating a vehicle entering the right-hand lane to make a left turn is displayed alternately at the same time as the straight-line signal light (green) at the intersection.
FIG. 7 is an example of a collision avoidance signal system utilizing artificial intelligence (AI) at intersections and crosswalks according to the present invention, in which a vehicle approach indication function is added to a countdown signal light of a crosswalk signal light to alternately notify of approaching dangerous vehicles.
FIG. 8 is an embodiment of a collision avoidance signal system utilizing artificial intelligence (AI) at an intersection and crosswalk according to the present invention, in which a countdown signal light is inserted together with a signal light that indicates the entry and direction of a dangerous vehicle when the green signal light of a crosswalk is turned on, thereby indicating that a dangerous vehicle is approaching.
Figure 9 is an embodiment of a collision avoidance signal system using artificial intelligence (AI) at an intersection and crosswalk according to the present invention, which displays the direction in which a dangerous vehicle will proceed.
Figure 10 is a block diagram illustrating an embodiment of a collision avoidance signal system utilizing artificial intelligence (AI) at an intersection and crosswalk according to the present invention.

A preferred embodiment of the present invention is described in detail with reference to the attached drawings as follows.

In addition, the terms used in the present invention are selected from general terms that are widely used at present as much as possible, but in certain cases, there are terms that the applicant has arbitrarily selected, and in such cases, the meanings of these terms are described in detail in the description of the relevant invention, so it should be noted that the present invention should be understood based on the meanings of the terms and not simply the names of the terms. In addition, in describing the embodiments, descriptions of technical contents that are well known in the technical field to which the present invention belongs and that are not directly related to the present invention are omitted. This is to convey the gist of the present invention more clearly without obscuring it by omitting unnecessary explanations.

The present invention is to prevent collision accidents by recognizing in advance a vehicle attempting to pass at a high speed while entering late at an intersection or crosswalk when the traffic light is yellow (amber), and a vehicle violating the traffic light, and notifying people waiting at the next crosswalk traffic light or vehicles waiting at the next traffic light.

Also, when the traffic light at an intersection or crosswalk is yellow, if a vehicle enters late or a vehicle that has run a red light enters at a high speed and tries to pass, the traffic light at the next crosswalk is set to change to green a few seconds later, and when such a vehicle is recognized, the green light automatically turns on a few seconds later, thereby preventing collisions between vehicles and pedestrians.

In addition, the system detects vehicles turning right at intersections and notifies people crossing or waiting at crosswalks located ahead and behind the right turn with a traffic light and/or audible voice so that they can see and avoid approaching vehicles, thereby preventing collisions between vehicles and people.

First, Fig. 1 is a plan view of an embodiment of an intersection to which a collision avoidance signal system utilizing artificial intelligence (AI) is applied at an intersection and a crosswalk according to the present invention, Fig. 2 is a signal light having a signal light attached to a driving signal light to notify a person crossing a front crosswalk or a vehicle approaching a left turn at an intersection in a collision avoidance signal system utilizing artificial intelligence (AI) at an intersection and a crosswalk according to the present invention, Fig. 3 is a drawing of an embodiment of a dangerous vehicle approach signal light at a crosswalk signal light in a collision avoidance signal system utilizing artificial intelligence (AI) at an intersection and a crosswalk according to the present invention, Fig. 4 is a drawing showing an embodiment of indicating the movement of a vehicle at a dangerous vehicle approaching signal light in a collision avoidance signal system utilizing artificial intelligence (AI) at an intersection and a crosswalk according to the present invention, and Fig. 5 is a drawing showing an embodiment of indicating a person crossing at a front crosswalk by adding a left turn signal light to a left turn signal light together with a driving lane signal light at an intersection in a collision avoidance signal system utilizing artificial intelligence (AI) at an intersection and a crosswalk according to the present invention. An embodiment in which the signals are displayed alternately is shown, and FIG. 6 is an embodiment in which, in a collision prevention signal system using artificial intelligence (AI) at an intersection and a crosswalk according to the present invention, a signal light indicating a vehicle entering the right-hand road to make a left turn is included in the straight-line signal light (green) in the driving lane signal at an intersection and a straight-line signal light (green) and displayed alternately, and FIG. 7 is an embodiment in which, in a collision prevention signal system using artificial intelligence (AI) at an intersection and a crosswalk according to the present invention, a vehicle approach indicator function is included in the countdown signal light of the crosswalk signal light to alternately notify of the approach of a dangerous vehicle.

First, in Fig. 1, when vehicles (1, 2, 3) waiting for a signal at an intersection are receiving a left turn signal from the right road and entering the left road, if vehicle No. 5 enters late and tries to pass quickly, or if a vehicle that has run a red light enters at a high speed, the first vehicle speed measurement/turn signal detection camera (11) measures the first vehicle speed measurement/turn signal detection camera (12) and measures the second vehicle speed measurement/turn signal detection camera (12) to determine whether the vehicle is to make a left turn and pass if the vehicle does not reduce its speed.

Here, the first vehicle speed measurement/turn signal detection camera (11) and the second vehicle speed measurement/turn signal detection camera (12) are installed together with a camera that distinguishes the colors of the vehicle's turn signals, or a camera with two functions of measuring vehicle speed and detecting turn signals is installed to distinguish left and right turning vehicles in advance.

So, in case of late entry or a red light violation, it has the characteristic of preventing collisions between these vehicles and people and left-turning vehicles (5, 5') by notifying the next traffic light (1, 2, 3,) waiting on the left side and the people crossing the crosswalk signal light (14, 15) on the left road with a signal. In particular, if vehicle 5 enters late and vehicles 1 and 2 on the left road are waiting at the signal at the position of vehicle 5' and then depart when the signal changes, vehicle 5' returning from the right is not seen because it is blocked by vehicles 2 or 3, so vehicles 2 and 3 and vehicle 5' often collide.

Meanwhile, when a right-turning vehicle (7) intends to make a right turn, a first vehicle speed measurement/turn signal detection camera (18) and a second vehicle speed measurement/turn signal detection camera (19) are installed together with cameras that not only measure speed but also recognize and distinguish turn signals, so as to recognize the right-turning vehicle (7) in advance and display a signal that the right-turning vehicle is approaching the crosswalk signal lights (24, 25) in front and the crosswalk signal lights (14, 15) after the right turn using at least one of a signal light and/or an audio signal, thereby preventing collisions between vehicles and people.

When a left-turning vehicle (6) enters the intersection at a yellow (amber) signal light to make a left turn, but the next signal, the crosswalk signal light (22, 21), has already turned green, the vehicle enters the intersection and the driving lane signal light (17) indicates that a person is crossing the crosswalk in the left turn direction using the same signal light method as the person crossing signal light (53) in Fig. 2. In addition, the signal lights (21, 22) of this crosswalk indicate that a vehicle is approaching the crosswalk using the vehicle approach indicator means (62) in Fig. 3 so that people crossing the crosswalk can see and avoid dangerous vehicles. In particular, when a vehicle 6 making a left-turn at a speed reaches the 6’ position and the crosswalk signal light has turned green, a collision accident often occurs when the vehicle crosses the intersection looking only at the crosswalk signal light.

Since the number of lanes on the road is small, and a straight lane and a left turn lane, or a straight lane and a right turn lane are used together, as in 30 and 31, when the traffic lights for the driving lanes are the same as the traffic lights for straight and left turns, in order to distinguish whether the vehicle (6) will go straight or turn left, and also whether the vehicle (7) will go straight or turn right, the frontmost (18), front (19) and intersection center cameras (13) function not only to measure speed, but also to recognize and distinguish the color of the vehicle's turn signal (blinker) so as to notify in advance whether the vehicle (6) will turn left or go straight (30) and whether the vehicle (7) will go straight or turn right (31).

Fig. 2 shows a traffic light for a driving lane, which indicates that a person is crossing the crosswalk in front of the driving direction of the vehicle when the left turn signal or the straight-going signal is turned on, and a dangerous vehicle warning signal (55) that warns of caution because the vehicle is turning left. Therefore, the person passing signal (53) and the dangerous vehicle warning signal (55) are displayed between the vehicle and the person, and when waiting for the vehicle turning left at the intersection, just before the left turn or straight-going signal is switched. This person passing signal (53) has the dangerous vehicle warning signal (55) function, and the dangerous vehicle warning signal (55) has the person passing signal (53) function, so as to indicate a dangerous situation. When indicating a dangerous situation, the left turn or straight-going signal (green signal) blinks to indicate a dangerous situation.

Fig. 3 shows a signal light indicating that a vehicle is approaching a crosswalk signal light, Fig. 4 shows lights that light up one by one to indicate the movement of a vehicle, making it look like the lights are moving, and Fig. 5 shows a left turn signal light (52) in Fig. 2, and a signal light (53) indicating that a person is crossing the crosswalk ahead is placed together with the vehicle left turn signal light (52), and turned on alternately as in Figs. 56 and 57. This is because the signal light display function not only provides a signal light (53) indicating that a person is crossing on a crosswalk, but also provides a signal light (55) indicating that a dangerous vehicle is approaching, so as to notify the public when necessary.

Fig. 6 shows an example of a case where a signal for a vehicle that is making a late left turn from the right road is displayed together with a green signal light (straight-going signal light) (54) for the driving lane in the traffic lights (Fig. 2) of vehicles waiting at a signal on the left road, and a hazard signal warning signal light (55) is displayed alternately as in 58 and 59. A pedestrian crossing signal light (53) indicating that a person is crossing the crosswalk can also be displayed alternately in the driving signal green signal light (54), and the function of the pedestrian crossing signal light (53) and the function of the dangerous vehicle warning signal light (55) can be added together in the dangerous vehicle warning signal light (55) so that when the camera recognizes each corresponding situation, a signal for the corresponding situation is displayed.

At this time, as another method of displaying a vehicle approach notification signal light on crosswalk traffic lights (14, 15, 21, 22, 24, 25), the function of a dangerous vehicle approach signal light can be added to the green signal light among the crosswalk traffic lights so that only the green signal light turns on and when a dangerous vehicle approaches, the hazard notification display and the green signal are displayed alternately.

In addition, when displaying a dangerous vehicle approach signal light function together with a green signal light or countdown display means (63) of a crosswalk signal light (14, 15, 21, 22, 24, 25), the green signal light or countdown display means may be displayed, and when a dangerous vehicle approaches, the dangerous vehicle approach signal light may be displayed primarily, and when the speed is lowered to a safe speed (low speed) set by the vehicle or when the vehicle passes the crosswalk, only the green signal light or countdown display means may be displayed again.

Figure 7 shows a signal light display method in which a dangerous vehicle approach display means (62) is placed together with a countdown display means (63) on a crosswalk signal light to count down and then alternately display 65 and 66 when a dangerous vehicle approaches.

Fig. 8 shows a countdown signal that indicates the remaining time of the green signal for a crosswalk signal, along with a dangerous vehicle approach signal, to perform a countdown (65) and, when a dangerous vehicle approaches, the vehicle (67) and direction of travel (68) are alternately displayed, and when the vehicle stops or slows down (safe speed), the vehicle approach indicator light is turned off and the countdown number is displayed again. This can be done by adding it to the green signal for a crosswalk. In addition, a dangerous vehicle guidance signal light can be attached to the crosswalk signal light separately from the countdown signal light.

Figure 9 shows a crosswalk signal light that indicates a dangerous vehicle approaching, with the signal indicating the direction in which the vehicle will proceed, based on the target person standing or crossing the crosswalk.

Figure 10 is a block diagram illustrating an embodiment of a collision avoidance signal system utilizing artificial intelligence (AI) at an intersection and crosswalk according to the present invention.

An embodiment of a collision avoidance signal system using artificial intelligence (AI) at an intersection and crosswalk according to the present invention, as shown in FIG. 8, comprises: a first vehicle speed measurement/turn signal detection camera (11, 18) that detects at least one of the speed and turn signal of vehicles entering an intersection from a first distance in front of vehicles entering the intersection that is set in advance; a second vehicle speed measurement/turn signal detection camera (12, 19) that detects at least one of the speed and turn signal of vehicles entering from a second distance that is relatively smaller than the first distance in front of vehicles entering the intersection; a plurality of crosswalk signal lights (14, 15, 21, 22, 24, 25) installed around the intersection and controlling the driving of pedestrians; a plurality of driving lane signal lights (10, 16, 17, 23) installed around the intersection and controlling the driving of vehicles; and a first vehicle speed measurement/turn signal detection camera. The driving speed and turn signal blinking data of the vehicles detected by the camera (11, 18) and the second vehicle speed measurement/turn signal detection camera (12, 19) are collected, and the current signals of the plurality of crosswalk signal lights (14, 15, 21, 22, 24, 25) and the current signals of the plurality of driving lane signal lights (10, 16, 17, 23) are compared, and if it is determined that the vehicle that detected the driving speed is a vehicle that will pass through the intersection or crosswalk, the current signals of the plurality of crosswalk signal lights (14, 15, 21, 22, 24, 25) and the current signals of the plurality of driving lane signal lights (10, 16, 17, 23) are applied to the plurality of crosswalk signal lights (14, 15, 21, 22, 24, 25) so as to prevent vehicle-to-vehicle or vehicle-to-person collisions. It is configured to include a collision avoidance signal control device (100) utilizing artificial intelligence (AI) that controls the current signal and the current signals of multiple driving lane signal lights (10, 16, 17, 23) to be extended for a preset period of time.

In addition, an intersection center camera (13) may be additionally installed at the center of the intersection to perform at least one of speed measurement, turn signal detection, and vehicle movement path tracking of vehicles entering the intersection from a signal direction in which entry is permitted.

Meanwhile, the collision prevention signal control device (100) comprises a vehicle speed/direction crosswalk signal calculation unit (110) that calculates the signal operation time of a crosswalk signal light existing in the direction of travel according to the vehicle speed and the vehicle turn signal, a vehicle speed/direction driving lane signal calculation unit (120) that calculates the signal operation time of a driving lane signal light existing in the direction of travel according to the vehicle speed and the vehicle turn signal, a memory unit (130) in which the signal operation times of the crosswalk signal light and the driving lane signal light are stored, a speaker unit (140) that outputs a warning sound or guidance sound for the current signals of the plurality of crosswalk signal lights (14, 15, 21, 22, 24, 25) when the vehicle that detected the driving speed is judged to be a vehicle that will pass through the intersection or crosswalk, so as to prevent collisions between vehicles and people, a vehicle speed/direction crosswalk signal calculation unit (110), and a vehicle speed/direction driving lane signal calculation unit (120). Controlling the memory unit (130) and the speaker unit (140), collecting the driving speed and the blinking data of the turn signal of the vehicles detected by the first vehicle speed measurement/turn signal detection camera (11, 18) and the second vehicle speed measurement/turn signal detection camera (12, 19), comparing the signal operation times of the crosswalk signal and the driving lane signal stored in the memory unit (130), and if it is determined that the vehicle that detected the driving speed is a vehicle that will pass through the intersection or crosswalk, the current signals of the plurality of crosswalk signal lights (14, 15, 21, 22, 24, 25) and the current signals of the plurality of driving lane signal lights (10, 16, 17, 23) are used according to a preset program for vehicle-to-vehicle or vehicle-to-person collisions. It is configured to include a collision avoidance signal control unit (AI) (150) that generates a signal to control the current signal of the driving lane signal lights (10, 16, 17, 23) to selectively extend a preset period of time to the plurality of crosswalk signal lights (14, 15, 21, 22, 24, 25) and the plurality of driving lane signal lights (10, 16, 17, 23).

Meanwhile, the first vehicle speed measurement/turn signal detection camera (11, 18) distinguishes and recognizes the speed and turn signal (blinker) of a vehicle about 80 to 120 meters ahead driving in the direction of approaching an intersection or crosswalk, and the second vehicle speed measurement/turn signal detection camera (12, 19) distinguishes and recognizes the speed and turn signal (blinker) of the vehicle again about 20 to 40 meters ahead of the intersection or crosswalk for the vehicle distinguished by the first vehicle speed measurement/turn signal detection camera (11, 18).

In addition, the collision avoidance signal control device (100) measures and recognizes the speed of a vehicle attempting to pass through an intersection from the time the yellow signal among the current signals of a plurality of crosswalk signal lights (14, 15, 21, 22, 24, 25) and the current signals of a plurality of driving lane signal lights (10, 16, 17, 23) turns on, by the first vehicle speed measurement/turn signal detection camera (11, 18), and then measures and recognizes the speed also by the second vehicle speed measurement/turn signal detection camera (12, 19), and if the speed does not decrease, determines that the vehicle is to pass through the intersection or crosswalk.

In addition, the collision prevention signal control device (100) can notify of a dangerous vehicle approaching the crosswalk signal light by at least one of the crosswalk signal light and the speaker unit (140) before the yellow signal light of the driving lane turns off or before the crosswalk signal light ahead changes to a green signal light when the vehicle is traveling in a straight direction at an intersection or a straight road.

Meanwhile, when a vehicle intends to turn left at an intersection, the collision prevention signal control device (100) indicates to vehicles waiting for a signal on the left road that a dangerous vehicle is approaching by using a traffic light in the driving lane, and also notifies the crosswalk signal on the left road of the approaching dangerous vehicle by using at least one of a crosswalk signal light or a speaker unit (140).

And the collision avoidance signal control device (100) is a method of notifying a dangerous vehicle at a high speed while entering late when the traffic light of the vehicle's driving lane is yellow, by measuring and recognizing the speed from the first vehicle speed measurement/turn signal detection camera (11, 18) and then measuring and recognizing the speed from the second vehicle speed measurement/turn signal detection camera (12, 19) and if the speed does not decrease, recognizing the vehicle as a vehicle to pass and notifying the dangerous vehicle through the driving lane signal for the next signal or the crosswalk signal speaker for people trying to cross the crosswalk.

Here, the collision avoidance signal control device (100) measures and recognizes the speed from the first vehicle speed measurement/turn signal detection camera (11, 18), and if the speed is not reduced by also measuring and recognizing the speed from the second vehicle speed measurement/turn signal detection camera (12, 19), the speed change and movement path of the vehicle measured and recognized are tracked through the intersection center camera (13), and monitors whether the vehicle enters the left road at the intersection and passes the crosswalk on the left road at a constant high speed, or if the vehicle reduces the speed to a set very low speed (safe speed level) while entering the left road, the signal lights of vehicles waiting on the left side and the left crosswalk signal lights are turned off to indicate a dangerous vehicle approach and the sound of the speaker unit (140).

In addition, when a dangerous vehicle, which enters late and attempts to pass at a certain speed or higher when the traffic light for the driving lane is yellow to cross the crosswalk at an intersection or a straight road, is detected by the first vehicle speed measurement/turn signal detection camera (11, 18) and then detected by the second vehicle speed measurement/turn signal detection camera (12, 19) and the intersection center camera (13), the green traffic light of the crosswalk in the direction in which the vehicle is traveling is set to turn on late for a preset period of time to avoid collisions between vehicles and people.

And in order to avoid a collision between a vehicle turning right at an intersection and a person crossing the crosswalk, after the first vehicle speed measurement/turn signal detection camera (11, 18) measures and recognizes the speed, the second vehicle speed measurement/turn signal detection camera (12, 19) recognizes the vehicle attempting to make a right turn, and further includes a vehicle approach signal light to inform the crosswalk signal lights on both sides of the crosswalk located straight ahead and after the right turn that the vehicle is approaching to make a right turn, and notifies the people crossing the crosswalk or waiting through the vehicle approach signal light and the speaker unit (140).

Meanwhile, the collision prevention signal control device (100) controls the signal lights of the lanes of vehicles waiting on the left side of the intersection to notify the waiting vehicles of the risk of collision between vehicles at the intersection when the signals of the vehicles waiting on the left side change as a vehicle from the right side of the intersection makes a late left turn.

And in order to indicate the approach of a dangerous vehicle or a person crossing the crosswalk at the driving lane signal lights (10, 16, 17, 23), it is preferable to additionally provide a signal light to indicate crossing the crosswalk or a signal light to indicate approaching a dangerous vehicle below the direction signal lights and green signal lights of the driving lane signal lights (10, 16, 17, 23), so that when proceeding with a left turn signal just before the left turn signal light (52) or the green signal light (54) of the driving lane turns on, a separate signal light for indicating a person crossing the crosswalk on the left-hand side of the road is provided, and a signal light for notifying a dangerous vehicle (55) is provided below the left turn signal light (52) and the green signal light (54) of the driving lane when a dangerous vehicle approaches.

Meanwhile, in order to indicate the approach of a dangerous vehicle or a person crossing the crosswalk at the above-mentioned driving lane signal lights (10, 16, 17, 23), a separate person crossing indication signal light (53) is displayed when a person is crossing the crosswalk ahead just before the driving lane green signal light (54) turns on, and when a dangerous vehicle approaches, a dangerous vehicle warning signal light (55) is displayed below the driving lane green signal light (54).

Meanwhile, in the method of indicating danger in the driving lane signal lights (10, 16, 17, 23), the functions of the crosswalk person crossing indicator light (53) and the dangerous vehicle warning signal light (55) are incorporated into the left turn signal light (52) or the driving lane green signal light (54), so that the left turn signal light or the green signal light can be turned on for its original purpose, and when a person crosses the crosswalk or a vehicle enters, the original signal and the corresponding situation signal can be displayed alternately.

And when the left turn signal or green signal of the above-mentioned driving lane signal lights (10, 16, 17, 23) is turned on and operates respectively, and when the person passing signal light (53) and the dangerous vehicle warning signal light (55) that indicate a dangerous situation are turned on together, they operate while blinking to indicate a danger.

In addition, in the method of notifying the approach of a dangerous vehicle to the crosswalk signal light (14, 15, 21, 22, 24, 25), a separate dangerous vehicle notification signal light is installed on the crosswalk signal light (14, 15, 21, 22, 24, 25) so that when the crosswalk green signal light is on or the signal light is red, if a right-turning vehicle approaches, the vehicle approach notification is notified through at least one of the dangerous vehicle approach signal light (62) and the speaker unit (140), or as a method of displaying the vehicle approach notification signal light on the crosswalk signal light (14, 15, 21, 22, 24, 25), a countdown signal light (63) is added to display the remaining time of the green signal light of the crosswalk signal light as a countdown together with the dangerous vehicle approach signal light (62), so that when the dangerous vehicle approaches, the countdown number and the dangerous notification sign are displayed alternately, or As a method of displaying a vehicle approach notification signal light on a crosswalk signal light (14, 15, 21, 22, 24, 25), a dangerous vehicle approach signal light function can be added to the green signal light among the crosswalk signal lights so that only the green signal light turns on and when a dangerous vehicle approaches, a dangerous notification sign is displayed alternately.

Although the present invention has been described with examples as above, the present invention is not necessarily limited to these examples, and various modifications can be implemented within a scope that does not depart from the technical idea of the present invention. Therefore, the examples disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain it, and the scope of the technical idea of the present invention is not limited by these examples. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within a scope equivalent thereto should be interpreted as being included in the scope of the rights of the present invention.

1, 2, 3: Vehicles waiting at a signal 5, 6: Vehicles turning left
5', 6': Left-turning vehicle at a high risk of collision
7: Right turning vehicle
11, 18: 1st vehicle speed measurement/turn signal detection camera
12, 19: 2nd vehicle speed measurement/turn signal detection camera
13: Intersection center camera (vehicle speed measurement/turn signal detection/vehicle movement path tracking)
14, 15, 21, 22, 24, 25: Crosswalk signal lights
10, 16, 17, 23: Driving lane traffic lights
20: A person is crossing the crosswalk
30: Straight and left turn lane markings on the road
31: Straight and right turn lane markings on the road
50: Red traffic light 51: Yellow traffic light
52: Left turn signal light 53: Passing person signal light
54: Green traffic light for driving lane 55: Dangerous vehicle warning light
62: Hazardous vehicle approach indication means 63: Countdown indication means
100: Collision prevention signal control device using artificial intelligence (AI)
110: Vehicle speed/direction crosswalk signal calculation unit
120: Vehicle speed/direction driving lane signal calculation unit
130: Memory section 140: Speaker section
150: Collision avoidance signal control unit (AI)

Claims (21)

A first vehicle speed measurement/turn signal detection camera (11, 18) that detects at least one of the speed and turn signal of vehicles entering the intersection from a preset first distance ahead of the vehicles entering the intersection;
A second vehicle speed measurement/turn signal detection camera (12, 19) that detects at least one of the speed and turn signal of the vehicles entering the intersection at a second distance relatively shorter than the first distance preset in front of the vehicles entering the intersection;
Multiple crosswalk signal lights (14, 15, 21, 22, 24, 25) installed around the above intersection to control the movement of pedestrians;
Multiple driving lane signal lights (10, 16, 17, 23) installed around the above intersection to control the driving of vehicles;
An intersection center camera (13) installed in the center of the intersection to measure the speed of vehicles entering the intersection from a signal direction in which entry is permitted, detect turn signals, and track vehicle movement paths; and
The driving speed and turn signal blinking data of the vehicles detected by the first vehicle speed measurement/turn signal detection camera (11, 18) and the second vehicle speed measurement/turn signal detection camera (12, 19) are collected, and the current signals of the plurality of crosswalk signal lights (14, 15, 21, 22, 24, 25) and the current signals of the plurality of driving lane signal lights (10, 16, 17, 23) are compared, and if it is determined that the vehicle whose driving speed has been detected is a vehicle that will pass through the intersection or crosswalk, the current signals of the plurality of crosswalk signal lights (14, 15, 21, 22, 24, 25) and the current signals of the plurality of driving lane signal lights (10, 16, 17, 23) are used to prevent vehicle-to-vehicle or vehicle-to-person collisions. It is configured to include a collision avoidance signal control device (100) utilizing artificial intelligence (AI) that controls the current signals of the traffic lights (21, 22, 24, 25) and the current signals of the traffic lights of multiple driving lanes (10, 16, 17, 23) to be extended for a preset period of time.
The above collision avoidance signal control device (100) is
A vehicle speed/direction crosswalk signal calculation unit (110) for calculating the signal operation time of a crosswalk signal light existing in the direction of travel according to the vehicle speed and the vehicle turn signal, a vehicle speed/direction driving lane signal calculation unit (120) for calculating the signal operation time of a driving lane signal light existing in the direction of travel according to the vehicle speed and the vehicle turn signal, a memory unit (130) in which the signal operation times of the crosswalk signal light and the driving lane signal light are stored, a speaker unit (140) for outputting a warning sound or guidance sound for the current signals of the plurality of crosswalk signal lights (14, 15, 21, 22, 24, 25) so as to prevent collisions between vehicles and people when the vehicle that detected the driving speed is judged to be a vehicle that will pass through the intersection or crosswalk, and a vehicle speed/direction crosswalk signal calculation unit (110), a vehicle speed/direction driving lane signal calculation unit (120), a memory unit (130) and a speaker unit (140). Control, the driving speed and the blinking data of the turn signal of the vehicles detected by the first vehicle speed measurement/turn signal detection camera (11, 18) and the second vehicle speed measurement/turn signal detection camera (12, 19) are collected, and compared with the signal operation times of the crosswalk signal and the driving lane signal stored in the memory unit (130), and if it is determined that the vehicle that detected the driving speed is a vehicle that will pass through the intersection or crosswalk, the current signals of the plurality of crosswalk signal lights (14, 15, 21, 22, 24, 25) and the current signals of the plurality of driving lane signal lights (10, 16, 17, 23) are used to detect vehicle-to-vehicle or vehicle-to-person collisions according to a preset program for the current signals of the plurality of crosswalk signal lights (14, 15, 21, 22, 24, 25) and the plurality of driving lane signal lights (10, 16, 17, 23). It is configured to include a collision avoidance signal control unit (AI) (150) that generates a signal to control the current signal of the plurality of crosswalk signal lights (14, 15, 21, 22, 24, 25) and the plurality of driving lane signal lights (10, 16, 17, 23) to selectively extend the signal for a preset period of time.
The above first vehicle speed measurement/turn signal detection camera (11, 18) is
Distinguish and recognize the speed and turn signal lights (blinkers) of vehicles driving 80 to 120 meters ahead when approaching an intersection or crosswalk.
The above second vehicle speed measurement/turn signal detection camera (12, 19) is
For the vehicle recognized by the first vehicle speed measurement/turn signal detection camera (11, 18), the vehicle speed and the vehicle turn signal (blinker) are recognized again 20 to 40 meters in front of the intersection or crosswalk.
When the yellow signal from the current signals of the above multiple crosswalk signal lights (14, 15, 21, 22, 24, 25) and the current signals of the multiple driving lane signal lights (10, 16, 17, 23) turn on, the speed of a vehicle attempting to pass through the intersection is measured and recognized by the first vehicle speed measurement/turn signal detection camera (11, 18), and then the speed is also measured and recognized by the second vehicle speed measurement/turn signal detection camera (12, 19). If the speed does not decrease, the vehicle is determined to be passing through the intersection or crosswalk.
The above collision avoidance signal control device (100) is
A method for notifying a vehicle to pass when the traffic light for the vehicle's lane at an intersection or crosswalk is yellow and the crosswalk traffic light changes to green, or for notifying a vehicle to pass the crosswalk when the crosswalk traffic light is red, wherein after the first vehicle speed measurement/turn signal detection camera (11, 18) measures and recognizes the speed, the second vehicle speed measurement/turn signal detection camera (12, 19) also measures and recognizes the speed and, if the speed does not decrease, the vehicle is recognized as a vehicle to pass and the vehicle waiting for the next signal is notified of the dangerous vehicle through the traffic light for the lane or the crosswalk traffic light speaker unit to people trying to cross the crosswalk.
The above first vehicle speed measurement/turn signal detection camera (11) and the second vehicle speed measurement/turn signal detection camera (12) are installed together with a camera that distinguishes the colors of the vehicle's turn signals or a camera that has two functions of measuring vehicle speed and detecting the turn signal is installed to distinguish left-turning and right-turning vehicles in advance and to signal to vehicles (1, 2, 3,) waiting on the left side and people crossing the crosswalk signal light (14, 15) on the left side of the road, thereby preventing collisions between vehicles (1, 2, 3,) and people waiting and left-turning vehicles (5, 5').
To indicate the approach of a dangerous vehicle or a person crossing the crosswalk at the above driving lane signal lights (10, 16, 17, 23),
There is a signal light to indicate that a crosswalk is being crossed or a signal light to indicate that a dangerous vehicle is approaching under each of the left turn signal lights and the green signal lights of the driving lane signals (10, 16, 17, 23), so that when proceeding with a left turn signal or a straight-going signal just before or after the left turn signal light (52) or the green signal light (54) of the driving lane is turned on, if a person is crossing the crosswalk in each direction of travel, a separate signal light for indicating a person crossing (53) is provided to indicate this, and when a dangerous vehicle is approaching, a signal light for notifying a dangerous vehicle (55) is provided under the left turn signal light (52) and the green signal light (54) of the driving lane.
An artificial intelligence (AI)-based collision avoidance signal system at intersections and crosswalks, characterized by flashing left turn or straight-going traffic lights (green signals) to indicate dangerous situations.
delete delete delete delete In the first paragraph,
The above collision avoidance signal control device (100) is
A collision prevention signal system utilizing artificial intelligence (AI) at intersections and crosswalks, characterized in that when a vehicle is traveling in a straight direction at an intersection or a straight road, at least one of a crosswalk signal light and a speaker unit (140) is used to notify of an approaching dangerous vehicle at a crosswalk signal light before the yellow signal light of the driving lane turns off or before the crosswalk signal light ahead turns green.
In the first paragraph,
The above collision avoidance signal control device (100) is
A collision prevention signal system utilizing artificial intelligence (AI) at intersections and crosswalks, characterized in that when a vehicle intends to make a left turn at an intersection, it indicates to vehicles waiting for a signal on the left road that a dangerous vehicle is approaching the traffic light in front of the vehicle with a traffic lane signal light, and also notifies the crosswalk signal light on the left road of the approaching dangerous vehicle with at least one of a crosswalk signal light or a speaker unit (140).
delete In the first paragraph,
The above collision avoidance signal control device (100) is
After the speed is measured and recognized by the first vehicle speed measurement/turn signal detection camera (11, 18), if the speed is also measured and recognized by the second vehicle speed measurement/turn signal detection camera (12, 19) and the speed does not decrease,
By tracking the speed change and movement path of the vehicle recognized through the above-mentioned intersection center camera (13),
At the intersection, enter the left or right road
Monitor whether a vehicle passes through a crosswalk on the left or right road at a pre-determined dangerously fast speed, or
A collision avoidance signal system utilizing artificial intelligence (AI) at intersections and crosswalks, characterized in that when a vehicle enters the left or right road and reduces its speed to a preset safe level, the signal lights of vehicles waiting on the left or right and the signal lights of crosswalks on the left or right also turn off the sound of a dangerous vehicle approaching signal light and a speaker unit (140).
In the first paragraph,
When a dangerous vehicle, which is trying to enter the crosswalk at an intersection or a straight road late and pass at a speed higher than a certain level when the traffic light of the driving lane is yellow, is recognized by the first vehicle speed measurement/turn signal detection camera (11, 18) and then detected by the second vehicle speed measurement/turn signal detection camera (12, 19) and the intersection center camera (13),
An artificial intelligence (AI)-based collision prevention signal system at intersections and crosswalks, characterized by setting the green signal light of a crosswalk in the direction in which a vehicle is traveling to turn on late for a preset period of time, thereby avoiding collisions between vehicles and people.
In the first paragraph,
To avoid collisions between vehicles turning right at intersections and people crossing the crosswalk,
A collision prevention signal system utilizing artificial intelligence (AI) at an intersection and crosswalk, characterized in that after the first vehicle speed measurement/turn signal detection camera (11, 18) measures and recognizes the speed, the second vehicle speed measurement/turn signal detection camera (12, 19) recognizes a vehicle attempting to make a right turn, and provides guidance to people crossing or waiting on a crosswalk that a vehicle is approaching a right turn at the crosswalk signal lights on both sides of the crosswalk located straight ahead and after the right turn, and notifies people crossing or waiting on the crosswalk through the vehicle approach indication means (62) and the speaker unit (140).
In the first paragraph,
As a method of recognizing left-turning vehicles and right-turning vehicles before they turn,
The above-mentioned collision avoidance signal control device (100) detects whether a vehicle is a left-turning or right-turning vehicle before turning when a vehicle approaches with its turn signal (blinker) turned on through the first vehicle speed measurement/turn signal detection camera (11, 18) and the second vehicle speed measurement/turn signal detection camera (12, 19), and notifies the crosswalk signal light in the direction of travel of the vehicle and the signal light of a vehicle waiting at a signal of an approaching dangerous vehicle. This is a collision avoidance signal system utilizing artificial intelligence (AI) at an intersection and crosswalk.
In the first paragraph,
The above collision avoidance signal control device (100) is
When a dangerous vehicle is detected approaching through the first vehicle speed measurement/turn signal detection camera (11, 18) and the second vehicle speed measurement/turn signal detection camera (12, 19),
A collision prevention signal system utilizing artificial intelligence (AI) at an intersection and crosswalk, characterized in that at a crosswalk, a dangerous vehicle approach signal signal or at least one of the speaker unit (140) is notified through a crosswalk signal light, and when a vehicle from the right road makes a late left turn at the front signal light for vehicles waiting on the left road, the dangerous vehicle approach is notified to vehicles waiting on the left side, thereby avoiding the risk of collision between vehicles.
In the first paragraph,
The above collision avoidance signal control device (100) is
An artificial intelligence (AI)-based collision prevention signal system at intersections and crosswalks, characterized by controlling the signal lights of vehicles waiting on the left side of the intersection to notify the traffic lights of the driving lanes of waiting vehicles of the risk of collision between vehicles at the intersection by changing the signals of the vehicles waiting on the left side when a vehicle from the right side of the intersection turns left late or runs a red light.
delete In the first paragraph,
In a method of indicating danger at a driving lane signal light (10, 16, 17, 23),
The left turn signal (52) or the green signal for the driving lane (54) includes the functions of the crosswalk pedestrian crossing signal (53) and the dangerous vehicle warning signal (55).
An artificial intelligence (AI)-based collision prevention signal system at intersections and crosswalks, characterized by the fact that when a left turn signal or green signal is turned on for its original purpose and a person crosses the crosswalk or a vehicle enters, the original signal and the corresponding situation signal are displayed alternately.
In Article 16,
A collision prevention signal system utilizing artificial intelligence (AI) at intersections and crosswalks, characterized in that when the left turn signal or green signal of the above-mentioned driving lane signal lights (10, 16, 17, 23) is turned on and operates separately, and when the pedestrian crossing signal light (53) and the dangerous vehicle warning signal light (55) that indicate a dangerous situation are turned on together, they operate while blinking to indicate a dangerous situation.
In Article 11,
In a method for notifying the approach of a dangerous vehicle to the above crosswalk signal lights (14, 15, 21, 22, 24, 25),
A collision prevention signal system utilizing artificial intelligence (AI) at an intersection and crosswalk, characterized in that a separate dangerous vehicle warning signal light is installed on the above crosswalk signal lights (14, 15, 21, 22, 24, 25) so that when the crosswalk signal light is green or the signal light is red, if a right-turning vehicle approaches, a vehicle approach notification is notified through at least one of the dangerous vehicle approach signal light (62) and the speaker unit (140).
In Article 18,
As a method of displaying a vehicle approach notification signal on a crosswalk signal light (14, 15, 21, 22, 24, 25),
A collision prevention signal system utilizing artificial intelligence (AI) at an intersection and crosswalk, characterized in that the function is combined with a countdown display means (63) that displays the remaining time of the green signal of a crosswalk signal as a countdown together with the above dangerous vehicle approach signal light (62), so that when the above dangerous vehicle approaches, a countdown number and a danger warning display are displayed alternately on one signal light, and two functions are displayed.
In Article 18,
As a method of displaying a vehicle approach notification signal light on the above crosswalk signal lights (14, 15, 21, 22, 24, 25),
A collision prevention signal system utilizing artificial intelligence (AI) at intersections and crosswalks, characterized by incorporating the function of a dangerous vehicle approach signal light into the green signal light of the above crosswalk signal light, so that only the green signal light is turned on, and when a dangerous vehicle approaches, the hazard warning sign and the green signal are displayed alternately.
delete