KR20240042961A - Vehicle speed and distance customized auxiliary traffic light system - Google Patents

Abstract

The present invention relates to an auxiliary traffic light system tailored to vehicle speed and distance according to distance. More specifically, the present invention relates to a system of auxiliary traffic lights tailored to vehicle speed and distance, minimizing traffic congestion and signal waiting time by adjusting traffic congestion caused by signals to the speed and distance of vehicles, and introducing auxiliary traffic lights. It is about an auxiliary traffic light system tailored to vehicle speed and distance that serves as an auxiliary traffic light so that ambiguous points in existing traffic lights, such as water, can be clearly identified. The main traffic light signal and the light emitting part that emits signal color light through LEDs A light emission control unit that controls the conditions of light emitted from the light emitting unit according to the system; and a refracting unit composed of a convex lens to refract signal color light.

Description

{Vehicle speed and distance customized auxiliary traffic light system}

The present invention relates to an auxiliary traffic light system tailored to vehicle speed and distance according to the distance. More specifically, the present invention relates to an auxiliary traffic light system tailored to the speed and distance of the vehicle, minimizing traffic congestion and signal waiting time by adjusting traffic congestion caused by signals to the speed and distance of the vehicle, and introducing auxiliary traffic lights. It is about an auxiliary traffic light system tailored to vehicle speed and distance that serves as an auxiliary traffic light so that ambiguous points in existing traffic lights, such as water, can be clearly identified.

An auxiliary traffic light is a facility for driver or pedestrian safety. It is a pedestrian traffic light assistance device that changes the color of the LED panel installed in the pedestrian waiting line to green and red according to the change in the crosswalk traffic light. It was created to reduce the risk of accidents for pedestrians by displaying flashing lights on the floor. For example, for drivers at night, it is difficult to see the boundary between the sidewalk and the roadway because the surroundings are dark. In this case, the LED auxiliary traffic light helps secure the driver's visibility by clearly distinguishing the boundary between the sidewalk and the roadway.

However, the conventional LED auxiliary traffic light emits the same signal color light when vehicles with different vehicle speeds approach within a certain distance or, depending on the traffic signal system, when the yellow light is on and vehicles with different braking distances depending on the vehicle weight There is a problem of causing signal confusion to drivers.

Korean Publication No. 2022-0096411 (2022.07.07.) Korean Publication No. 2000-0024644 (2000.05.06.) Korean registration number 2304484 (2021.09.14)

The present invention takes this problem into consideration, and the present invention provides an auxiliary traffic light system tailored to vehicle speed and distance that minimizes traffic congestion on the road by providing auxiliary signals to individual vehicles according to vehicle speed and distance when crossing signals by vehicle. It is provided.

An auxiliary traffic light system tailored to vehicle speed and distance according to embodiments of the present invention includes a light emitting unit that emits signal color light through an LED; a light emission control unit that controls conditions of light emitted from the light emitting unit in accordance with the main traffic light signal system; It includes a refracting unit composed of a convex lens to refract the signal color light.

In embodiments of the present invention, the light emitting unit is composed of a flexible LED matrix, includes an array property, and includes LEDs to display signal colors.

In embodiments of the present invention, the light emitting unit uses the properties of the LED array to sequentially emit red signal color light or green signal color light according to the LED array.

In embodiments of the present invention, the light emission control unit adjusts the light emitting unit to the main traffic light signal system so that the signal color light received by the preceding vehicle and the following vehicle can be different depending on the distance (position) and height of the vehicle. Controls the lighting sequence of the emitted signal color lights.

In embodiments of the present invention, the light emission control unit is refracted through the convex lens in accordance with the main traffic light signal system, based on the properties of the flexible LED array and the properties of the convex lens attached to the light emitting unit. Controls the lighting sequence of the outgoing signal color lights.

In embodiments of the present invention, the light emission control unit controls the green LED portion of the array of the light emitting unit through the convex lens ( The light emitted from ) is refracted so that the entire area where vehicles can pass safely at the prescribed speed while the green signal is on ( ), the entire area where vehicles are located that can safely pass at the prescribed speed while the green signal is on ( ) is calculated using Equation 1, and Equation 1 is (here, is a point in an array of green-emitting LEDs, is a point in the array of LEDs on the border between green and red, The traffic light is high, is the angle of light of the green signal passing through the center of the lens)

In embodiments of the present invention, the light emission control unit controls the red LED portion of the array of the light emitting unit through the convex lens ( The light emitted from ) is refracted, so that the entire area where the vehicle is located ( ), the entire area where the vehicle is located that cannot safely pass at the prescribed speed while the green signal is on ( ) is calculated using Equation 2, and Equation 2 is am. (here, is a point in the array of red-emitting LEDs, is a point in the array of LEDs on the border between green and red, The traffic light is high, is the angle of light of the red signal passing through the center of the lens)

In embodiments of the present invention, the refractor is positioned at the location of the vehicle in the passable area and the impossible area so that the signal color light received by the vehicle in the passable area and the impossible area through the convex lens is clearly recognized as different. The signal color light is refracted accordingly.

In embodiments of the present invention, the refractive unit maximizes the effect of viewing the light divided into red and green through the convex lens to look different depending on the location of the vehicle, so that only red or green is visible depending on the location. It utilizes the phenomenon of rapidly changing light emission ratio.

A signal method tailored to vehicle speed and distance according to still other embodiments of the present invention is a method of driving an auxiliary traffic light system customized to vehicle speed and distance, including the steps of emitting signal color light through an LED in a light emitting unit; It includes a step of controlling the conditions of light emitted from the light emitting unit in accordance with the signal system of the main traffic light in a light emission control unit; a step of refracting the signal color light by forming a convex lens in the refracting unit.

According to the vehicle speed and distance customized auxiliary traffic light system described above, the following effects are achieved.

First, it assists in knowing whether each vehicle can pass through according to speed and distance, allowing vehicle owners to clearly recognize the signal.

Second, traffic congestion caused by signals is adjusted to the speed of the vehicle to minimize traffic congestion and signal waiting time.

Third, traffic accidents can be alleviated and road congestion can be minimized by replacing or assisting the consistent current signal system with an individually customized new system.

1 is a configuration diagram of the present invention.
Figure 2 is a schematic diagram of the present invention.
Figure 3 is a schematic diagram of a path through which light from an auxiliary signal is refracted in a convex lens according to an embodiment of the present invention.
Figure 4 is a schematic diagram of observation of an auxiliary signal on the ground under control of the light emission control unit 200 according to an embodiment of the present invention.
Figure 5 is a schematic diagram of traffic signals received differently depending on the difference in vehicle height and location on the road between a preceding and following vehicle according to an embodiment of the present invention.
Figures 6 and 7 are schematic diagrams of identifiable light according to observation points and enlarged schematic diagrams of lenses according to an embodiment of the present invention.
Figure 8 is a flow chart of the present invention.

With reference to the attached drawings, an auxiliary traffic light system tailored to vehicle speed and distance according to embodiments of the present invention will be described in detail. Since the present invention can make various changes and take various forms, specific embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to a specific disclosed form, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention. While describing each drawing, similar reference numerals are used for similar components. In the attached drawings, the dimensions of the structures are enlarged from the actual size for clarity of the present invention, or reduced from the actual size to understand the schematic configuration.

Additionally, terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, a first component may be named a second component, and similarly, the second component may also be named a first component without departing from the scope of the present invention. Meanwhile, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted in an ideal or excessively formal sense unless explicitly defined in the present application. No.

The present invention relates to an auxiliary traffic light system tailored to vehicle speed and distance according to the distance. By adjusting traffic congestion caused by signals to the speed and distance of the vehicle, traffic congestion and signal waiting time are minimized and auxiliary traffic lights are introduced to reduce existing traffic congestion such as tailgating. This relates to an auxiliary traffic light system tailored to vehicle speed and distance that serves as an auxiliary traffic light so that ambiguous points in traffic lights can be clearly identified.

Figure 1 is a configuration diagram of the present invention, and Figure 2 is a schematic diagram of the present invention.

Referring to Figures 1 and 2, the auxiliary traffic light system tailored to vehicle speed and distance includes a light emitting unit 100, a light emission control unit 200, and a refracting unit 300. The light emitting unit 100 emits signal color light through an LED, the light emission control unit 200 controls the conditions of light emitted from the light emitting unit 100 in accordance with the main traffic light signal system, and the refracting unit 300 is convex. It is composed of a lens and refracts the signal color light.

Figure 3 is a schematic diagram of a path through which light from an auxiliary signal is refracted in a convex lens according to an embodiment of the present invention. The light emitting unit 100 is composed of a flexible LED matrix, includes array properties, and includes LEDs to display signal colors.

To explain in more detail with reference to FIG. 3, the light emitting unit 100 uses the properties of the LED array (degree of bending) to emit a red signal from a red LED attached to a portion of the LED array (curved portion). It emits color, and green signal color light is emitted from the green LED attached to the remaining part of the array. In addition, the light emission control unit 200 is based on the properties of the LED array of the light emitting unit 100 and the properties of the convex lens of the refractive unit 300, and determines whether the preceding vehicle and the following vehicle are connected according to the distance (position) and height of the vehicle. The lighting order of the signal color light emitted from the light emitting unit 100 is controlled according to the main traffic light signal system so that the received signal color light can be different. Here, the center of the lens is O, the distance of the lens is f, the position of the red LED is Pr, the position of the boundary is Pb, the position of the green LED is Pg, and the position of the image of the red LED is , the location on the boundary is and the position of the green LED is In other words, the equation of the lens according to the distance at which the image is formed using the flexible LED of the light emitting unit 100 This is used. Distance from the red LED to the convex lens by the arrangement of the flexible LED of the light emitting unit 100 Since is the largest, the distance from the convex lens to the image is the smallest. Conversely, among the light refracted by the convex lens, the distance from the green LED to the lens Since is the smallest, the distance to the image is is the largest. Therefore, in contrast to the conventional light emitting unit of the main traffic light or auxiliary traffic light that controls all LEDs to the same color according to the traffic signal system without considering the height of the leading and following vehicle garages and their positions on the road, the present invention In the case of the flexible LED of the light emitting unit 100, the LEDs are controlled individually and sequentially according to the nature of the arrangement, and instead of observing the entire LED, only a part of the LED panel is observed by being refracted by a convex lens. Using this property, the light emission control unit 200 controls the red light to turn on sequentially from the bottom of the auxiliary signal when the orange light turns on in the main traffic light.

Figure 4 is a schematic diagram of observation of an auxiliary signal on the ground under control of the light emission control unit 200 according to an embodiment of the present invention. The light emission control unit 200 turns on the signal color light refracted through the convex lens in accordance with the main traffic light signal system, based on the properties of the flexible LED array and the properties of the convex lens attached to the light emitting unit. Control the order.

Referring to FIG. 4, the light emission control unit 200 controls the green LED portion of the array of the light emitting unit 100 through the convex lens of the refractive unit 300 ( The light emitted from ) is refracted so that the entire area where vehicles can pass safely at the prescribed speed while the green signal is on ( ), the entire area where vehicles are located that can safely pass at the prescribed speed while the green signal is on ( ) is calculated using Equation 1, and Equation 1 is am. In addition, the red LED portion of the array of the light emitting unit 100 through the convex lens ( The light emitted from ) is refracted, so that the entire area where the vehicle is located ( ), the entire area where the vehicle is located that cannot safely pass at the prescribed speed while the green signal is on ( ) is calculated using Equation 2, and Equation 2 is am. here, is a point in the array of green-emitting LEDs, is a point in the array of red-emitting LEDs, is a point in the array of LEDs on the border between green and red, The traffic light is high, is the angle of the green signal light passing through the center of the lens is the angle of light of the red signal passing through the center of the lens. Based on Equation 1 and Equation 2, Equation 3 is derived for the distance (braking distance) between the preceding vehicle and the following vehicle. , and it can be shown that it is proportional to the height of the traffic light by Equation 3 above. In other words, to explain in more detail, a red (auxiliary) signal is generated using Equation 1, Equation 2, and Equation 3 above. where is identified green (auxiliary) signal where is identified Distance to the height of this traffic light It can be seen that it is proportional to . ( )

Figure 5 is a schematic diagram of traffic signals received differently depending on the difference in vehicle height and location on the road between a preceding and following vehicle according to an embodiment of the present invention.

The refracting unit 300 sends the signal color light according to the position of the vehicle in the passable area and the impossible area so that the signal color light received by the vehicle in the passable area and the impossible area is clearly recognized through the convex lens. refract Here, when the signal color light is refracted in the convex lens and air, the refractive index of each medium is , the angle of incidence is , the angle of incidence is In this case, the signal color light is refracted at the boundary between the two media, so when the light passes through the lens, It can be expressed as: In addition, the refracting unit 300 maximizes the effect of making the light emitted by being divided into red and green through the convex lens look different depending on the location of the vehicle, and quickly increases the red or green light emission rate so that only red or green is visible depending on the location. Take advantage of changing phenomena. In other words, to explain in more detail, the convex lens does not actively refract and send light to individual vehicles. However, the light emitted in red and green looks different depending on the viewing position, and the sik convex lens maximizes this effect so that only red or green is visible depending on the position of the vehicle. When looking at a specific area of an object through the convex lens, the area appears enlarged, but the area right next to it is not visible through the lens. However, if the convex lens is not used, the specific area appears smaller than when the convex lens is used, but adjacent areas are also visible. In the present invention, the convex lens property is used to allow only a specific portion of red or green light emitted from behind the convex lens to be visible. Here, in the case where there is no convex lens, green:red = 5:5 and green:red = 4:6 appear depending on the location, and the ratio does not change significantly even if the change in the position of the vehicle is large. However, when a convex lens is used, a specific area is enlarged and the phenomenon is used to quickly change from green: red = 100:0 to green: red = 0:100 even if the position of the vehicle is slightly moved.

To explain in more detail with reference to FIG. 5, FIG. 5 is a schematic diagram captured by photographing the camera viewpoint in the field of view of a leading car (left image) and a following truck (right image) from the perspective of two vehicles of different heights. . The three boxes in a row are the main traffic lights, and the box below is the auxiliary traffic light. When the orange LED of the main traffic light turns on and the red LED of the auxiliary traffic light turns on sequentially, the preceding passenger car can sufficiently pass the signal, so it can be confirmed that the auxiliary traffic light is emitting green from the passenger car's perspective. , Since the trailing truck cannot pass, you can see that the auxiliary traffic light seen from the truck is emitting red. Afterwards, depending on the time, cars in that location also fail to pass the signal and receive a red signal.

Figures 6 and 7 are schematic diagrams of identifiable light according to observation points and enlarged schematic diagrams of lenses according to an embodiment of the present invention.

Referring to Figures 6 and 7, other identifiable lights can be identified at the observation point according to an embodiment of the present invention. Here, each number represents the number of the observation point. When observing the signal closely, a wider area of the LED panel is visible.

Figure 8 is a flow chart of the present invention.

Referring to FIG. 8, in the method of driving an auxiliary traffic light system customized for vehicle speed and distance, the signal method customized for vehicle speed and distance includes the steps of emitting signal color light through an LED in a light emitting unit (S801); A step of controlling the conditions of light emitted from the light emitting unit in accordance with the signal system of the main traffic light in the light emission control unit (S802); It includes a step (S803) of refracting the signal color light by using a convex lens in the refracting unit.

The present invention takes this problem into consideration, and the present invention provides an auxiliary traffic light system tailored to vehicle speed and distance that minimizes traffic congestion on the road by providing auxiliary signals to individual vehicles according to vehicle speed and distance when crossing signals by vehicle. It is provided. According to the vehicle speed and distance customized auxiliary traffic light system described above, the following effects are achieved. First, it assists in knowing whether each vehicle can pass through according to speed and distance, allowing vehicle owners to clearly recognize the signal. Second, traffic congestion caused by signals is adjusted to the speed of the vehicle to minimize traffic congestion and signal waiting time. Third, traffic accidents can be alleviated and road congestion can be minimized by replacing or assisting the consistent current signal system with an individually customized new system.

Although the detailed description of the present invention described above has been described with reference to preferred embodiments of the present invention, those skilled in the art or those skilled in the art will understand the spirit of the present invention as described in the patent claims to be described later. It will be understood that the present invention can be modified and changed in various ways without departing from the technical scope.

100: light emitting unit 200: light emission control unit
300: refraction part

Claims (10)

A light emitting unit that emits signal color light through LEDs;
a light emission control unit that controls conditions of light emitted from the light emitting unit in accordance with the main traffic light signal system;
An auxiliary traffic light system tailored to vehicle speed and distance, comprising a refracting unit composed of a convex lens to refract the signal color light. According to paragraph 1,
The light emitting part,
It is composed of a flexible LED matrix and includes the properties of an array.
An auxiliary traffic light system tailored to vehicle speed and distance, characterized by including LEDs to display signal colors. According to paragraph 2,
The light emitting part,
Using the properties of LED array,
An auxiliary traffic light system customized for vehicle speed and distance, characterized in that it sequentially emits red signal color light or green signal color light according to the LED array. According to paragraph 1,
The light emission control unit,
In accordance with the main traffic light signal system, the signal color light received by the preceding and following vehicles may be different depending on the distance (location) and height of the vehicle,
An auxiliary traffic light system customized for vehicle speed and distance, characterized in that the lighting sequence of the signal color light emitted from the light emitting unit is controlled. According to paragraph 1,
The light emission control unit,
Based on the properties of the flexible LED array and the properties of the convex lens attached to the light emitting unit,
In accordance with the main traffic light signal system,
An auxiliary traffic light system customized for vehicle speed and distance, characterized in that the lighting order of the signal color light refracted through the convex lens is controlled. According to clause 5,
The light emission control unit,
The green LED portion of the array of the light emitting unit through the convex lens ( The light emitted from ) is refracted and the entire area where vehicles are located that can safely pass at the prescribed speed while the green signal is on ( ) to be able to reach,
The entire area where vehicles are located that can safely pass at the prescribed speed while the green signal is on ( ) Calculated using equation 1,
Equation 1 above is An auxiliary traffic light system tailored to vehicle speed and distance, characterized in that.
(here, is a point in the array of green-emitting LEDs, is a point in the array of LEDs on the border between green and red, The traffic light is high, is the angle of light of the green signal passing through the center of the lens) According to clause 5,
The light emission control unit,
The red LED portion of the array of the light emitting unit through the convex lens ( The light emitted from ) is refracted, so that the entire area where the vehicle is located ( ) to be able to reach,
The entire area where vehicles are located that cannot safely pass at the prescribed speed while the green signal is on ( ) is calculated using Equation 2,
Equation 2 above is An auxiliary traffic light system tailored to vehicle speed and distance, characterized in that.
(here, is a point in the array of red-emitting LEDs, is a point in the array of LEDs on the border between green and red, The traffic light is high, is the angle of light of the red signal passing through the center of the lens) According to paragraph 1,
The refracting part,
So that the signal color light received by vehicles in the passable area and the impossible area through the convex lens is clearly recognized as different,
An auxiliary traffic light system customized for vehicle speed and distance, characterized in that it refracts the signal color light according to the position of the vehicle in the passable area and the impossible area. According to clause 8,
The refracting part,
Characterized by utilizing the phenomenon of quickly changing the red or green light emission ratio so that only red or green is visible depending on the position by maximizing the effect of showing the light that is divided into red and green through the convex lens and appears differently depending on the position of the vehicle. Auxiliary traffic light system tailored to vehicle speed and distance. In a method of driving an auxiliary traffic light system tailored to vehicle speed and distance,
A step of emitting signal color light through an LED in a light emitting unit;
Controlling the conditions of light emitted from the light emitting unit in accordance with the signal system of the main traffic light at the light emission control unit;
A signal method tailored to vehicle speed and distance, comprising a step of refracting the signal color light by using a convex lens in the refracting unit.