KR20020041345A - Reduce numbers and change sign display of traffic signal lights - Google Patents

Abstract

PURPOSE: A reduction of signal lamp number and an improvement of a traffic system are provided to reduce the number of used signal lamps by using an LED(Light Emission Display) device. CONSTITUTION: An LED device is used for displaying three colors of a red color, a yellow color, and a green color in one lamp. The number of signal lamp is reduced by using the LED device for displaying three colors. A structure of a signal lamp for vehicle is changed by reducing four lamps per one side or three lamps per one side to two lamps per one side. A structure of a signal lamp for pedestrian crossing is changed by reducing three lamps per one side to one lamp per one side. A structure of a signal lamp for pedestrian is changed by reducing two lamps per one side to one lamp per one side. The colors of the signal lamp are represented by using the LED device.

Description

Reduce numbers and change sign display of traffic signal lights}

The present invention relates to a traffic light for automobiles and pedestrians, and more particularly, to indicate red, yellow, and green colors using LED elements for every traffic light, and to indicate an indication of a stop signal, a caution signal, a driving signal, etc. with an arrow. And the traffic lights for pedestrians and pedestrians that reduced the number of pedestrian traffic lights on one side and two wards (Fig. 3, 4) on one side and four wards of vehicle traffic lights on one side (Fig. 5). The structure and system are the most useful improvements.

Traffic lights are installed in intersections or crosswalks (Figs. 1 to 2), etc. and are devices that instruct the smooth passage of cars and pedestrians. The driver requires various information such as traffic jam information, regulatory information, guidance information, intersection signal information, etc. while driving, and the driver relies on the perspective of cognitive means for over 90% of driving behaviors on the road. Traffic light information is the biggest part of the driver's attention.

Therefore, in order to secure such visibility, the information transmission function of traffic signal display system and structure that accurately conveys the direction of the traffic light so that all drivers can observe the direction of the traffic light at their location in a timely manner will inform the driver conveniently and accurately. It must be designed to be effective.

Existing traffic lights are stop signal (red) and caution signal (yellow). A traffic light (green) and an arrow (green) indicating a left turn driving signal show only one color, and each one has 4 holes (Fig. 3, Fig. 4) or 1 to express red, yellow, and green. There were no choice but to produce three balls of cotton (FIG. 5), and there was a limit of information display function.

The traffic light of the present invention is a light emitting diode traffic light display device that can display three colors, i.e., red, yellow, green, etc. in one light, so that three lights can be alternately displayed in one light, so that three existing traffic lights operate as one. By doing so, the number of existing traffic lights can be reduced.

That is, the one-sided four-hole traffic light structure (7-17) of the intersection automobile traffic light (FIGS. 3-4) is reduced to the one-sided two-hole structure (7-1 to 17-1), and the three-sided traffic light structure (crossing sidewalk 1) 18 to 20 are reduced to a one-sided one-hole structure (18-1 to 20-1), and the one-sided four-hole structure 21 of the intersection corner or the variable vehicle traffic light (Fig. 6) is a one-sided two-hole structure (22 It is a structural improvement which reduces to -25) and reduces the one-sided two-hole structure 29-30 of the crosswalk pedestrian traffic light (FIG. 8) to the one-sided one-hole structure 29-1-30-1.

The lack of information on the timing of the change of the straight, left or right turn signal of existing traffic lights could cause drivers to be embarrassed and cause traffic flows and accidents. Existing car traffic lights can only display one color, so there is no choice but to install a four-way (7-17) traffic light system on a four-way or three-way intersection in order to display each color signal. However, the traffic light sequence of the traffic light system is not accurately transmitted to the drivers, and the drivers are taking action. First, in the case of the red signal (7, 13), it is obvious that it is a stop signal, but it is a signal that cannot go straight, a signal that cannot turn left or right and makes the driver unconditionally stop. Second, in the case of the green signal, it is confusing to drivers because it is not immediately known whether it is a signal that can go straight or turn left. Third, in the case of a yellow signal (10, 12, 15, 17), turn left The yellow light turns on after the enable signal and after the straight signal.

Ambiguous whether these yellow lights 10, 15 are left turn or straight attention signals are embarrassing drivers. That is, in the past, the warning signal (yellow) lights up immediately after the driving signal (green), and the stop signal (red) turns on after a few seconds in a state in which it is ambiguous whether the warning signal is for turning left or going straight. The problem of entering the intersection with the caution signal and the stop signal is not known exactly, which causes the danger of the accident and the congestion of the intersection and makes all drivers stumble.

These traffic lights can understand the order of the traffic lights if you are watching the traffic lights while the vehicle is stopped for a while, but if you cannot see the traffic lights because there is a large car in front of you, in the case of traffic lights immediately after the curve, If you are worried about the front car or the next car, and suddenly see the traffic light, you may stop the traffic light because you do not recognize the current traffic light situation and go straight.

The present invention solves the above problems by improving all the traffic lights to the traffic light structure represented by arrows 7-1 to 25 using LED elements. That is, all traffic lights are displayed with red (stop signals), yellow (caution signals), and green (travel signals) arrows (FIG. 7) to allow drivers to easily and accurately recognize traffic information. If the driver acts according to the direction of the traffic light at the current location, the traffic flow can be smooth, as well as convenient and safe for the driver himself, and can prevent accidents.

And the arrow (FIG. 7) indicating the correct direction of the direction will be a great help for color blind people, it can be easily recognized by children or anyone who does not know the system of traffic lights.

Conventional bulb traffic lights have worsened visibility due to the lighting of neon signs and street lamps installed around them, especially when the weather conditions are bad or when it is difficult to recognize at night. It appears to be one of the major factors that cause traffic accidents by inhibiting the traffic accidents.

As described in the comparison of the characteristics of LED bulbs with conventional bulbs (37-59), LED traffic lights have an average energy savings of 80%, maintenance costs of 90% or more, and 83% of LED traffic lights with excellent visibility and readability. It was evaluated by many laboratories. The economic recovery of the LED traffic light showed that the capital recovery period was 4 to 5 years. However, it will be much shorter in consideration of the cost of autonomous failure and maintenance of the existing traffic light and the cost of vehicle congestion and traffic accident. Moreover, considering the gains from reducing the number of traffic lights, a capital recovery period of two to three years is sufficient. This LED traffic light can reduce the weight of the existing bulb-type traffic lights, can use the housing 3000mm diameter (26) of the existing traffic lights as it is, and can be operated in conjunction with the existing traffic signal controller. By using the space obtained by replacing existing traffic light with LED traffic light, and making the size of the traffic light 3500mm (27) or 4000mm (28) so that the arrow sign of the traffic light can be seen more easily, it will be easily recognized from afar. . In addition, the importance of design of all products, at present, simple models rather than complex ones will look good and will also benefit the urban aesthetics.

Hwang-kyung's eco-friendly LED traffic lights, which have many advantages and have a semi-permanent lifespan, are currently being pushed forward worldwide. Such intelligent transportation systems make relatively small investments for efficient road traffic operation and traffic safety. It is an object of the present invention to solve the traffic problem, which is very important for the future improvement of the urban traffic environment.

The present invention has been made to solve the problems of the conventional vehicle and pedestrian traffic light system as described above, the first object of the present invention is the existing bulb signal light using an LED element that can be expressed in red, yellow, red, etc. By allowing one to operate two or three LEDs, the number of existing traffic lights is reduced by half, reducing installation costs and simplifying the traffic light system, making it easier for drivers to recognize.

The second purpose is to express all the traffic lights (Figs. 3 to 7) by the arrows such as the driving signal (green), the caution signal (yellow) and the stop signal (red) using the LED element, and transmit the driving instruction to the driver. Arrows are displayed in red (stop signal), yellow (attention signal) and green (driving signal) according to the order of the traffic signal, and control the traffic by turning on / off the lights. This arrow system accurately conveys traffic signals to the driver, and the driver acts according to the signal's instructions to induce smooth distribution of the traffic.

The third purpose is that the LED traffic light of the present invention can be mounted as it is in the existing bulb-type traffic light (Fig. 7) 3000mm diameter enclosure, the size of the arrow to be the same as the existing left turn green arrow and the thickness of the arrow is 250mm. However, in order to make the arrow mark more visible from a distance, the diameter of the LED traffic light is 3500mm, the thickness is 300mm, or the 4000mm, the thickness is 350mm so that it can be easily recognized.

As described above, the signal control method using the traffic light structure and the LED of the present invention provides maximum convenience to all drivers and pedestrians, and is characterized by preventing smooth flow of traffic and accidents.

1 is a basic layout of four-way intersection cars and pedestrian traffic lights

Figure 2 is a three-distance "" "" "" "

3 is a structure and operation sequence of a four-way intersection traffic lights

4 shows three distances.

5 is a pedestrian crosswalk.

6 shows an intersection corner "" ""

7 is a front view of an LED traffic light

8 is a structure and operation sequence of the pedestrian crossing traffic light

9 is a traffic signal control box

10 is a characteristic comparison table of the bulb type and the LED traffic light

<Explanation of symbols for main parts of drawing>

1 to 6: Basic installation instructions for intersection traffic lights

7 ~ 12: Structure and operation sequence of four-way intersection car traffic light

13-17: 3-way "" "" ""

18-20: Structure and operation sequence of pedestrian crossing automobile traffic light

21-25: Structure and operation sequence of intersection corner and variable vehicle traffic light

26-28: Front view of LED traffic light

29-30: Structure and operation sequence of pedestrian crossing traffic light

31 ～ 36: Traffic signal control box

37-50: Comparison table of characteristics of bulb type and LED traffic light

Hereinafter, described in detail by the accompanying drawings as follows.

Figure 1 shows the installation of LED traffic lights of the six-lane four-way intersection according to the present invention, in the case of a four-way intersection usually 32 car traffic lights (one side two spheres) is installed, pedestrian traffic lights (one side one sphere) 8 are installed and total 40. On the other hand, the number of existing traffic lights is 48 (4 lights on 1 side) and 12 (3 lights on 1 side), and 16 pedestrian traffic lights (2 lights on 1 side) are installed in total. . That is, by installing the traffic light of the present invention can reduce the installation cost more than 45%, thereby reducing the maintenance cost and power consumption more than 85%.

Fig. 3 (four-way intersection), Fig. 4 (three-way intersection), Fig. 5 (crosswalk), Fig. 6 (intersection corner and variable), and Fig. 8 (for pedestrians) shows the existing and LED models of traffic lights This diagram shows the structure of and the sequence of operations. In these figures, a comparison of how traffic light presentation changes according to the operation sequence is described. That is, the operation sequence of the present invention can give drivers information signal transmission more clearly and clearly than the operation sequence of the existing traffic lights, and can bring various benefits such as traffic flow and accident prevention.

As described in the technical field of the invention, this LED traffic light clearly indicates the action the driver should take. In other words, red (stop), yellow (attention or waiting) and green (driving) are displayed by arrow signs according to the given time, so that drivers can be easily recognized. The signal blinks.

7 shows a standard as a front view of the LED traffic light of the present invention. The traffic light 26 has a diameter of 3000 mm and can be installed as it is in the existing enclosure as the same bulb as a conventional electric light. And in order for drivers to see the traffic lights better from a distance, the LED traffic lights are made with a diameter of 3500mm (27) or 4000mm (28) and the visibility of the direction arrow is set to 300mm (27) and 350mm (28). Can be further increased. That is, the installation of traffic lights is intended for the smooth flow of traffic and the prevention of traffic accidents by the driver easily recognizing the traffic signals, so the enlarged traffic lights will have enormous effects as the next generation traffic lights.

9 shows a simple structure of a traffic signal control box. The LED signal lamp 31 is connected to an LED driver 33 for flashing the LED signal lamp by switching the driving power of the power supply unit 35 to red, yellow and green light emitting diodes. The light emitting diode selectively blinks according to a traffic light control signal or a traffic information signal. The power supply to operate this LED traffic light is 220 VAC input and can be operated at 24 DVC or 12 DVC using a switching power supply.

10 compares the characteristics of the bulb-type traffic light and the LED traffic light. There are many more resources, but they are mainly described only for traffic lights.

As described above, by applying the LED signal light and the signal control technology developed in the present invention to the field, it is possible to induce a drastic change in the road traffic operation system by improving the operational efficiency and traffic safety of the intersection. The effect of changing the existing traffic lights from the light bulb type to the LED type can reduce the number of traffic lights by more than 45%, and also reduce the installation cost, maintenance cost, and power consumption by more than 80% on average. Given the number of traffic lights in the country, it will bring huge economic benefits. For each traffic light, red, yellow, green, etc. arrows and pictures are used to precisely indicate the direction, and in order to make the traffic light well visible from a distance, the diameter of the traffic light standard is 3500mm or 4000mm so that drivers can easily recognize and comfortable drive. Can be.

The present invention relates to a traffic safety enhancement method, a multi-functional traffic signal display system and a display device using LED signals that can provide a high reliability and various information as a means for preventing traffic accidents that are getting serious and effective traffic safety. It will have the best effect to solve the road traffic problem.

Although the present invention has been shown and described with reference to certain preferred embodiments, the present invention is not limited to the above-described embodiments, and the general knowledge in the technical field to which the present invention pertains does not fall within the spirit of the present invention. Various changes and modifications may be made by the possessor.

Claims (3)

How to reduce the number of traffic lights by using LED devices that can display three colors of red, yellow, and green on the back of all road traffic lights -Improved structure from 4 spheres on one side and 3 spheres on one side -Improved structure from pedestrian crossing traffic lights from 3 holes on 1 side to 1 side on 1 side -Improvement of pedestrian crosswalk traffic light from 2 side 1 side to 1 side 1 side Controlling traffic signals by displaying the traffic lights for cars and pedestrians using the LED elements as arrow signs of direction indications that can express colors such as stop (red), caution (yellow) and green (driving) for every lamp. Way Method of installing the LED traffic light of the present invention as it is in the existing traffic light box and how to produce the diameter of 3500mm and 4000mm and the thickness of the arrow 300mm and 350mm