KR20160095351A - Safty traffics lights using led - Google Patents

Abstract

The present invention relates to safety traffic lights using LED. The safety traffic lights comprise four states: a stop state (a) where all of upper LEDs (112) are completely turned on an hourglass shaped LED panel; a transitional state (a) where the upper LEDs (112) are gradually turned off from the top while lower LEDs (113) are gradually turned on; a walking start state (b) where the lower LEDs (113) are completely turned on; and a walking progress state (b) where the lower LEDs (113) are completed turned off while the lower LEDs (112) are gradually turned on. By this composition, the present invention can inform the pedestrians of remaining time until the light changes through hourglass animation.

Description

SAFETY TRAFFICS LIGHTS USING LED}

The present invention relates to a safety signal lamp using an LED, and more particularly, to a safety signal lamp using an LED, in which an LED diode of an LED panel is arranged in an hourglass shape and the upper LED and the lower LED are sequentially turned on and off, And to provide a safety signal lamp using an LED for indicating a remaining time until a signal is changed by displaying a progress state.

Generally, a traffic light is a device installed around an intersection or a pedestrian crossing to establish a safe traffic order by displaying a traffic condition to a pedestrian or a vehicle using the road.

Typical traffic lights indicate red, orange, and green signals for automobiles, and red and green signals for pedestrians to inform the pedestrian of the status of walking and stopping. A lamp serving as a light source and a control unit and a power supply unit for controlling lighting and extinguishing of the lamp are provided inside the signal lamp. In the past, most of the bulbs were used as lamps, which caused the visibility to drop significantly during daytime and cloudy days, glare at night, and frequent short circuit of the lamp bulbs and frequent lights out. In recent years, it has been replaced by a signal lamp equipped with an LED lamp having excellent light intensity and low power consumption.

LED (Light Emitting Diode) is a light emitting diode (LED), which has the advantages of high response speed due to the characteristics of semiconductor and long life with low power consumption. Therefore, various display devices are used in various fields as optical display devices. Recently, LED signal lamps have much higher luminous efficiency than existing bulbs, so they are highly visible in the daytime and have a great energy efficiency because of low power consumption.

As a typical example of the LED signal light, a traffic signal using an LED light bulb of Registration Practical Utility Model No. 20-0163349 is known, and its schematic configuration is as follows. Inside the traffic light unit, several LED bulbs are assembled. On the rear side, a PCB substrate for fixing the LED bulb is located, and a protective cover for protecting the PCB substrate is disposed on the rear side. The LED bulb and the PCB substrate and the protective cover are protected And a light shielding film is formed on an upper part of the transparent plate so that the light emitted from the transparent lens can be clearly seen from a long distance, And protruding small.

The LED traffic light related technology described in the following prior art documents including the LED signal lamp of the registered utility model has been applied to a traffic signal newly installed because it solves the problem of the above-mentioned conventional traffic light.

On the other hand, although traffic lights are installed on most roads in Korea, there is still a high incidence of traffic accidents in pedestrian crossings and crosswalks. Among the causes of the accident, the pedestrian lights up the green light, enters the crosswalk after a certain period of time, enters the crosswalk, and is damaged by a car accident due to a signal change to red before arriving at the crosswalk It is known that it occupies a large proportion. This is a serious problem that harms the traffic order because pedestrians are likely to have enough time even though the green lights are blinking and they enter the pedestrian crossing.

In recent years, a device for displaying elapsed time of green has been developed and provided. For example, Japanese Patent Application No. 10-0541245 discloses a device for displaying the remaining time of a gait signal. Respectively.

A signal driver for driving a signal lamp according to a control signal input from the control unit; and at least one LED (light emitting diode), wherein a digital number And a sub segment including at least one light emitting diode (LED) and located at each portion of the main segment and smoothly connecting the main segment, wherein the auxiliary segment includes at least one light emitting diode (LED) And a signal display unit for displaying the remaining time according to the signal.

Registered Utility Model No. 20 - 0163349 - 0000 Registration No. 10 - 0541245 - 0000

In the remaining time display device of the gait signal, which is applied to the related art as described above, the signal display part counts down the remaining time and displays it in conjunction with a conventional LED signal. Therefore, it is advantageous to reduce the occurrence of a situation in which the traffic signal enters the crosswalk when the signal change is imminent compared to the existing traffic light.

However, since only the remaining time such as green is displayed in the conventional technology, the pedestrian can not recognize whether the pedestrian is changed to green or the like in the process of waiting for the stationary state of the red light. This results in a problem that the pedestrians feel bored at the time of waiting for a long period of time due to a large amount of traffic, resulting in an incorrect selection of a traverse crossing.

In addition, since the display method of the remaining time takes a form of down-counting the numbers, it is difficult to judge the remaining time from the standpoint of pedestrians who have weak cognitive ability to numbers such as the handicapped or the elderly.

In addition, since a separate device for displaying the remaining time is provided in addition to the main body of the traffic light, there is a problem that installation work is troublesome and the space required is wider and power consumption is increased.

Accordingly, the present invention has been made to solve the above-mentioned problems,

An LED panel 110 in which a plurality of light emitting diodes 111 are arranged in an hourglass shape, a microcontroller 120 for controlling on / off of the LED panel 110, And a power supply module 130 for supplying power to the upper LED 112 and the lower LED 113 in the hourglass shaped LED panel according to the lighting state of the upper LED 112 and the lower LED 113. [ and a step of sequentially lighting the lower LEDs 112 while turning off the upper LEDs 112 in a state where the upper LED 112 is completely turned on and a step of sequentially lighting the upper LED 112 while turning off the lower LED 113 in a state where the lower LED 113 is fully lit and starting the walking (b) (b ') to display an hourglass animation It is possible to achieve the purpose to inform the remaining time required for the signal to change.

The present invention provides a safety signal lamp using an LED represented by an animation such as a shape in which an hourglass moves, so that the signal is changed not only after the gait start signal is turned on but also when the gait stop signal is on, The remaining time is displayed.

Therefore, pedestrians who have relatively weak cognitive abilities such as the elderly or the disabled can easily recognize the remaining time required to change the signal, thereby making the traffic order more secure.

In addition, since pedestrians are prevented from feeling bored while waiting for a signal change, the pedestrian is prevented from crossing in advance, and in particular, the pedestrian has the effect of guiding the pedestrians to choose to turn on another road, In addition to saving, we can expect to be able to operate the traffic signal system more efficiently.

1 is a perspective view of an embodiment of a safety signal lamp using the LED of the present invention.
2 is an exploded perspective view of a safety signal lamp using an LED according to an embodiment of the present invention.
Figs. 3 to 4 are diagrams showing examples of usage states of a safety signal lamp using the LED of the present invention. Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the configuration and operation of a safety signal lamp using the LED of the present invention will be described in detail with reference to the accompanying drawings.

2 is an exploded perspective view of a safety signal lamp using an LED according to an embodiment of the present invention, and Figs. 3 to 4 are views illustrating a safety using the LED of the present invention. Fig. The use state of the traffic lights will be described together as an example.

The safety signal lamp using the LED to which the technology of the present invention is applied includes an LED panel 110 in which a plurality of light emitting diodes 111 are arranged in an hourglass shape and a microcontroller 120 And a power supply module 130 for supplying power to the LED panel 110 and the microcontroller 120.

The light emitting diode 111 is a semiconductor element that emits light by flowing an electric current to a compound such as gallium arsenide (GaAs), which is a semiconductor material generally used together with germanium or silicon. Since it has high efficiency of converting electric energy into light energy, it is energy saving effect, and it is widely used in various fields as a next generation light source replacing incandescent lamp or fluorescent lamp. In Korea, Is being installed. The light emitting diodes 111 are arranged on the LED panel 110 so as to form a plurality of rows in the vertical direction, and have an hourglass shape along the outline lines. Each of the light emitting diodes 111 is provided with a cable so that power is supplied from the power supply module 130 and the microcontroller 120 controls the on and off processes.

The microcontroller 120 is configured to control turning on and off of the LED panel 110 as a platform on which a processor and a memory are mounted. An operation command of the LED panel 110 is set through a program installed in the memory and the processor processes the command to turn on and off the LED panel 110 according to a predetermined command. In general, since the signal processing is relatively simple in the signaling, the ATmega 128, which is a microcontroller 120 of a high performance and low power consumption type, is configured in the preferred embodiment of the present invention, but a normal microcontroller can also be applied .

The ATmega 128 is an 8-bit CMOS type microcontroller 120 based on an AVR RISC (Reduced Instruction Set Compute) structure which is simplified by minimizing the instructions of the processor. That is, since the processor and the small-capacity flash memory are integrated in one IC, it is possible to realize high performance and low power consumption by constituting only the minimum commands necessary for controlling the apparatus.

A method for displaying a signal of a safety signal using an LED according to the present invention will be described. First, a walking stop (a) is performed according to the lighting state of the upper LED 112 and the lower LED 113 in the hourglass shaped LED panel 110, And a step of displaying the walking start (b) and sequentially lighting the lower LEDs 113 while turning off the upper LEDs 112 in a state where the upper LED 112 is completely turned on (a) And the upper LED 112 are sequentially turned on while the lower LED 113 is sequentially turned off while the lower LED 113 is fully turned on And the remaining time required for signal change is indicated by displaying the walking progress state (b ').

Operation of the safety signal lamp using the LED according to the present invention having the above-described configuration will be described below.

The memory of the microcontroller 120 stores a walking stop (a) which is a signal for stopping the walking by lighting all the upper LEDs 112 in green, a stop for waiting for a signal change until the start of walking (b) after the walking stop The walking time (b), which is a signal for applying the gait by lighting all of the standby state a 'and the lower LED 113 in green, and the walking time (a) after the start of walking (b) And the progress state (b '), so that the processor processes the signal change command.

First, basically, the upper LED 112 is all lit in red at the time of the gait stop (a), and the lower LED 113 is all turned green when the gait starts (b).

In the stand-by standby state (a '), which is a process until the start of walking (b) after the gait stop (a), all the upper LEDs 112 are turned on in a red state, At the same time, the lower LED 113 is turned on from the uppermost row to the red row at the same speed as the row unit in which the upper LED 112 is turned off. The lighting and lighting speeds of the upper LED 112 and the lower LED 113 correspond to the microcontroller 120 at a preset time. The pedestrian is displayed in an hourglass shape in the waiting wait state (a ') after the walking stop (a), and waits for a signal while watching an animation in which sand lit in red is poured down.

The lower row of the upper LED 112 of the standby state a 'is turned off and the lower row of the lower LED 113 is turned on. At the same time, the lower row LED 113, which is sequentially turned on from the upper row, The lowest row is turned on and all of the lights are turned on green. Accordingly, a signal change is made in the state of the start of walking (b), and the pedestrian is authorized to cross the pedestrian crossing.

In the walking progress state (b '), which is a process until the walking stop (a) is turned on after the start of walking (b), the lower LED 113 is sequentially turned off from the bottom row to the bottom And at the same time, the upper LED 112 starts lighting from the lowest row to green at the same speed as the row unit in which the lower LED 113 is turned off. The pedestrian crosses the pedestrian crossing while watching the animation of the hourglass of the hourglass climbing upwards in the walking state (b ') after the start of walking (b).

The uppermost row of the upper LED 112 of the lower row LED 113 of the walking progress state b 'is turned off and the uppermost row of the upper LED 112 is turned on. At the same time, the upper row LED 112, The uppermost row is illuminated and all are illuminated in red or the like. As a result, the signal changes to the state of the walking stop (a), and the pedestrian becomes in a state in which the pedestrian can not cross the pedestrian crossing.

The safety signal lamp using the LED according to the present invention is configured such that the hourglass is represented by an animation such as a moving shape, so that the walking signal (b ') as well as the walking state (a) signal There is an advantage that the remaining time required until the signal is changed even in the standby wait state (a ') after lighting is displayed.

100: Safety signal lamp using LED 110: LED panel
111: light emitting diode 112: upper side LED
113: Lower LED 120: Microcontroller
130: power supply module 140: upper cover
150: lower cover 160: pole
a: Walking stop
a ': Standby state
b: Start walking
b ': Walking state

Claims (1)

In traffic lights,
An LED panel 110 in which a plurality of light emitting diodes 111 are arranged in an hourglass shape, a microcontroller 120 for controlling on / off of the LED panel 110, And a power supply module (130) for supplying power to the power supply module (120);
(A) and a start of walking (b) according to the lighting state of the upper LED 112 and the lower LED 113 in the hourglass-shaped LED panel, and the upper LED 112 is turned on A standby state a 'in which the upper LED 112 is sequentially turned off while the lower LED 113 is turned on while the lower LED 113 is in the off state a, And displays the walking progress state b ', which is a process of sequentially lighting the upper LED 112 while the lower LED 113 is sequentially turned off in the start (b) state, thereby informing the remaining time required for the signal change And a light emitting diode (LED).

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