KR200291713Y1 - Led type pedestrian signal lamp having a yellow signal function - Google Patents

Abstract

The present invention relates to a pedestrian traffic light of the LED type having a yellow signal function that causes the yellow signal to blink when a certain time elapses after the green traffic light blinks in the pedestrian traffic light, the pedestrian traffic light to adjust the flow of the vehicle A pedestrian traffic light provided with an LED module to selectively provide a walking signal installed in association with a vehicle flow control signal, the pedestrian traffic light; The green / yellow LED module supplied with the LED module unit by receiving a predetermined power from the power supply unit or the charging power supply unit, the power supply unit or the charging power supply unit selectively supplying the charging power by the charging method using the commercial power or the flashing power of the signal lamp. Microprocessor for outputting a control signal for driving the negative or red / yellow LED module unit at a predetermined time period, in order to selectively flash each of the green, red, and yellow signals provided in the LED module unit according to the control signal of the microprocessor By including a switching unit for switching operation, a signal driver for driving any one of the green, red, yellow signal according to the selection signal of the switching unit, and an operating voltage sensing unit for sensing the operating voltage output from the signal driver Achieved; Therefore, the pedestrian traffic light of the present invention is also provided with a yellow signal system like a traffic light for a general vehicle, and according to such a yellow signal system, it is possible to quickly convey the possibility of walking in a crosswalk, thereby reducing the frequency of accidents.

Description

LED pedestrian traffic light with yellow signal function {LED TYPE PEDESTRIAN SIGNAL LAMP HAVING A YELLOW SIGNAL FUNCTION}

The present invention relates to a pedestrian traffic light of the LED type having a yellow signal function, and more particularly has a yellow signal function to make the yellow signal blinks in addition to the pedestrian signal system that is provided with LEDs emitting green light and red light. It is about pedestrian traffic light of LED type.

In general, the pedestrian traffic light is installed to operate in conjunction with the vehicle flow control traffic light to adjust the flow of the vehicle, such a pedestrian traffic light lamp holder is mounted incandescent lamps on the printed board in the pedestrian traffic light 10 as shown in FIG. And green and red color windows 12 and 14 on the front surface of the lamp holder, to protect the pedestrian traffic light 10 or to block the direct light to secure the illuminance of the incandescent light. ) Is installed.

Such a pedestrian traffic light is a green lamp of the pedestrian traffic light is turned on in the state of stopping the flow of the vehicle so that pedestrians can cross the crosswalk, and after a certain time has elapsed, the green lamp blinks to switch to a red lamp. The action is performed. Such flashing action calls attention to pedestrians such as pedestrians who are currently walking on crosswalks as soon as the signal is converted, or pedestrians who have not entered the crosswalk waiting for the next signal.

However, since the pedestrian traffic light starts blinking at the time of lighting, it provides anxiety to pedestrians, and since the lighting time remaining after the green lamp is turned on is not known, the pedestrian crossing the crosswalk forcibly for a short time. In some cases, crossing the crosswalk is unstable, especially for the elderly, children, and the disabled.

Accordingly, in recent years, a signal lamp 20 provided with a remaining time display device is provided in a pedestrian traffic signal to display the remaining lighting time when the green lamp is turned on. After the green lamp is turned on, the lighting time of the green lamp is turned on. Make sure you cross the crosswalk.

That is, in the state where the remaining time display unit 30 is provided with the side portion of the pedestrian traffic light 20 as shown in FIG. 2, when the green lamp is turned on, the remaining time display unit 30 is also turned on together, and the lighting time As time elapses, a plurality of lamps provided to divide the lighting time are sequentially turned off.

However, this also causes the pedestrian to recognize only the alarm for the signal according to the flashing operation of the green lamp 22 and the remaining time display unit 30, but the remaining time display unit 30 is present how long the lighting time of the green lamp 22 is. Since it is possible to determine whether there is any remaining pedestrians, the pedestrians are forced to enter the crosswalk just before the signal is changed or the moment the signal is changed, thus preventing the occurrence of an accident effectively.

Therefore, the present invention allows the yellow traffic light to blink after a predetermined time after the green traffic light of the pedestrian traffic light is turned on, and then converts the signal to the red traffic light, such as the traffic signal system of the vehicle. Pedestrians do not enter pedestrian crossings, and only pedestrians who are currently walking in a hurry to provide a pedestrian traffic light of the LED type with a yellow signal function to minimize the occurrence of safety accidents.

LED type pedestrian traffic light having the yellow signal function to achieve the above object is installed in connection with the vehicle flow control signal to adjust the flow of the vehicle to the pedestrian traffic light is provided with an LED module to selectively provide a walking signal. The pedestrian traffic light is; The green / yellow LED module supplied with the LED module unit by receiving a predetermined power from the power supply unit or the charging power supply unit, the power supply unit or the charging power supply unit selectively supplying the charging power by the charging method using the commercial power or the flashing power of the signal lamp. Microprocessor for outputting a control signal for driving the negative or red / yellow LED module unit at a predetermined time period, in order to selectively flash each of the green, red, and yellow signals provided in the LED module unit according to the control signal of the microprocessor It includes a switching unit for switching operation, a signal driver for driving any one of the green, red, yellow signal according to the selection signal of the switching unit, and an operating voltage sensing unit for sensing the operating voltage output from the signal driver .

According to the present invention having the above-described configuration, a pedestrian traffic light also has a structure in which a yellow traffic light blinks like a general vehicle traffic light after a predetermined time elapses after the green traffic light flashes, and can incorporate a signal system provided by a general traffic light. have.

1 is a perspective view showing a pedestrian traffic light according to the prior art,

Figure 2 is a perspective view showing a state in which the remaining time display device is further mounted to the conventional pedestrian traffic lights,

Figure 3 is a block diagram showing a pedestrian traffic light of the LED type having a yellow signal function according to an embodiment of the present invention.

* Explanation of symbols for the main parts of the drawings *

110: microprocessor, 102: power supply,

104: charging power supply, 120: switching unit,

130: signal driver, 140: LED module,

150: green / yellow LED module, 160: red / yellow LED module

170: operation voltage detection unit.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is a block diagram showing a pedestrian traffic light of the LED type having a yellow signal function according to an embodiment of the present invention.

Here, in the description of the present invention will be described with reference to the pedestrian traffic light shown in Figure 2, the same reference numerals. That is, the appearance of the pedestrian traffic light of the present invention is the same as the conventional general pedestrian traffic light, and can be applied to any signal light that is used as a light emitting device for an LED rather than a light emitting body such as a lamp.

In addition, it is preferable to be made of a black polycarbonate material so as to match the currently installed pedestrian traffic lights.

First, the present invention, as shown in Figure 3, the power supply unit 102 or the charging power supply unit 104, the power supply unit for selectively supplying the charging power by the charging method using the flashing power of the general commercial power or traffic lights, the power supply ( The microprocessor 110 is supplied with a predetermined power from the 102,104 to drive the LED module 140 flashes green or red, or outputs a control signal so that all of the green and red LED module flashes yellow. In order to flash the green and red or yellow signals in accordance with a control signal, respectively, the switching unit 120 is configured to switch, and the green and red or yellow signals are flashed according to the selection signal selected by the switching unit 120. Signal driver 130 for outputting a drive signal for the green / yellow LED module unit (1) flashing a red and green or yellow signal in accordance with the drive signal (1) 50) and a red / yellow LED module unit 160 consisting of an LED module unit 140, an operating voltage sensing unit 170 for detecting an operating voltage applied to the LED module unit 140, and the green / yellow LED module The unit 150 includes a remaining time display unit 30 for displaying the remaining time of lighting when the green signal is turned on, and an acoustic signal unit 40 for outputting the lighting state of the current signal light for the visually impaired. do.

In the LED module unit 140, the green / yellow LED module unit 150 and the red / yellow LED module unit 160 alternately blink or operate green or red by the microprocessor 110, or Both green and red LEDs are designed to flash with yellow traffic lights.

In addition, the sound signal unit 40 is built in the remaining time display unit 30 to reduce the size of the traffic light itself and is beautifully configured in appearance.

The operation of the present invention configured as described above will be described.

First, the pedestrian traffic light 100 of the LED type having a yellow signal function of the present invention is a red or green signal light is turned on in accordance with the LED light emitting operation to provide a pedestrian signal system to pedestrians, the blinking time of the microprocessor 110 According to the control operation, the switching unit 120 and the signal driver 130 are operated for a predetermined time. That is, the LED is driven in consideration of the time at which the pedestrian can cross the pedestrian crossing sufficiently from the time when the green light is turned on in the green / yellow LED module unit 150.

In this case, the sound signal unit 40 for the visually impaired and the remaining time display unit 30 for displaying how much time is left when the green light is turned on are also selectively or simultaneously driven.

As such, when the pedestrian traffic light operates normally, when the green traffic light starts blinking, the present invention simultaneously drives a predetermined timer to time enough time for the pedestrian to cross the pedestrian crossing as described above. When the elapsed time, the microprocessor 110 controls the green / yellow LED module unit 150 to emit yellow light from the green LED currently blinking, and controls the red / yellow LED module unit 160 in the off state. Output a control signal to emit yellow light. That is, only the LED emitting green light is operated while the green traffic light is blinking, but when the control signal is output, the LED provided in the LED module unit 140 is driven.

Accordingly, after a predetermined time has elapsed after the start of the green traffic light flashing, the entire traffic light starts to flash at a predetermined time period with a yellow traffic light.

That is, the yellow flashing light provides the same function as the yellow traffic light provided to the vehicle traffic light. When the yellow light flashes, the vehicle entering the intersection may pass through the intersection as it is, but the vehicle immediately before entering the intersection is the stop signal. Just as the yellow light flashes, pedestrians crossing the current crosswalk are in a hurry to cross the crosswalk, while pedestrians failing to reach or just before crossing provide a signal system to use the next signal.

When the yellow traffic light is blinking as described above, the microprocessor 110 turns off the LED module unit 140 and drives only the LEDs related to red in the red / yellow LED module unit 160, thereby red. Turn the traffic light on.

As such, after flashing the green traffic light, the yellow traffic light flashes for a predetermined time, and the process of flashing the red traffic light is continuously repeated.

On the other hand, as described above, when the LED of the green, red and yellow signal lamps are turned on, the operation voltage detector 170 continuously detects whether the voltage required for the lighting is constantly supplied to check whether there is an abnormal operation voltage. That is, when the operating voltage is supplied below the predetermined reference voltage, the luminous efficiency of the LED may be lowered and the visibility may be lowered.

When the operating voltage is abnormally supplied, the microprocessor 110 checks the power currently supplied from the power supply units 102 and 104 and controls to supply appropriate power to the LED driving.

As described above, according to the pedestrian traffic light of the LED type having a yellow signal function of the present invention, by providing an additional yellow traffic light to the pedestrian traffic light currently being installed and operated, it is possible to accurately walk the crosswalk according to the recognition of the yellow traffic light. By making it possible to judge, it is possible to reduce the incidence of accidents at crosswalks.

In addition, the pedestrian traffic light of the present invention can easily install a microprocessor and LEDs supporting two colors in the existing traffic light, and by using a high-brightness light emitting diode to minimize power consumption, even illumination and prevent backlighting. .

Claims (2)

In the pedestrian traffic light is provided in conjunction with the vehicle flow control signal to adjust the flow of the vehicle is provided with an LED module to selectively provide a walking signal, The pedestrian traffic light; Power supply unit or charging power supply unit for selectively supplying the charging power by the charging method using the commercial power or the flashing power of traffic lights, A microprocessor which receives a predetermined power from the power supply unit or the charging power supply unit and outputs a control signal for driving the green / yellow LED module unit or the red / yellow LED module unit provided at a predetermined time period; Switching unit for switching operation to selectively flash each of the green, red, yellow signal provided in the LED module unit according to the control signal of the microprocessor, A signal driver for driving any one of green, red, and yellow signals according to the selection signal of the switching unit; LED type pedestrian traffic light having a yellow signal function, characterized in that it comprises an operating voltage sensing unit for sensing the operating voltage output from the signal driver. The method of claim 1, The green / yellow LED module unit and the red / yellow LED module unit may emit a green light or yellow light according to a control signal of the microprocessor, or a plurality of light emitting diodes emitting red or yellow light may be provided. Pedestrian traffic light with LED type.