KR20000000288A - Signal lamp for displaying remnant time - Google Patents

Abstract

PURPOSE: The signal lamp is provided to automatically set a flickering period although a signal period is changed and to play a role for itself as a stop lamp and a walking lamp CONSTITUTION: The rest time display signal lamp comprises the light emitting display division which drives the signal that comes in a external control signal input division in the rest time display signal lamp through a signal drive division, which lights and puts out the light and the control division which controls each light emitting display division to flicker independently in accordance with time and the memory division which remembers a signal data and a signal period.

Description

Remaining time display signal light {SIGNAL LAMP FOR DISPLAYING REMNANT TIME}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traffic light, and in particular, a plurality of light emitting display parts comprising a plurality of LED (light emitting emitting diode) elements, each of which independently flashes in at least one or more colors, and is a signal that changes from time to time according to traffic volume and traffic conditions. The present invention relates to a remaining time indicator which automatically divides the time according to a period so that the light emitting display part blinks sequentially.

Traffic signals for traffic and stops and walks for pedestrians are difficult for drivers and pedestrians to recognize immediately when the traffic lights are turned on and off. Therefore, the signal cycle of traffic lights is calculated and added next to traffic lights. Installed or displayed on or off time with a number or the LED module in the form of a graphic bar on the main body to flash sequentially.

For example, the prior art displaying a number of traffic waiting time is disclosed in Republic of Korea Patent Publication No. 180 (Publication No. 86-2073), No. 210 (Publication No. 86-6752), No. 915 (Publication No. 92-15251), 1122 (Publication No. 93-18446), 1416 (Publication No. 95-1577), Patent Publication No. 3813 (No. 94-11017), and also in the form of a graphic bar. Utility display publication No. 99-013006 and the like are known, and these are installed side by side next to the traffic lights in the same way, it is only in the form of displaying the remaining time through the display unit of the wait time of the traffic signal.

However, this prior art is an auxiliary means of a traffic light buried in the road to make it easier for pedestrians and drivers to know the flashing and blinking times of traffic signals, which is not only cumbersome to install, but also obstructs traffic flow. The cost will increase.

In addition, if the signal cycle changes after the installation of the traffic light, the operator has to visit the installation site from time to time to set the time manually, and there is a lot of waste of maintenance, time and manpower because it is not interoperable with the signal controller.

In addition, since the LED module in the display unit of the system indicating the waiting time is a single color LED element, only one color is displayed when stopping or walking, which makes it difficult for a pedestrian or a driver to easily recognize it.

Accordingly, the present invention has been proposed to solve various problems occurring in the conventional traffic signal waiting time display device as described above.

The object of the present invention is that the light emitting display part sequentially flashes in at least one color according to a signal, and thus can serve as a stop light and a walking light. The cycle is automatically set up for ease of operation and maintenance.

1 is a reference diagram showing an installation state of the present invention

2 is a front view showing a light emitting display of the present invention;

3 is a reference exploded perspective view showing an extract of FIG.

4 is a block diagram of a system control circuit of the present invention.

5 is a flowchart illustrating a control operation of the present invention.

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

10: remaining time display signal light 11: light emitting display

12: display panel 13: light emitting diode substrate

14 light emitting diode 20 cover

32: external control signal input unit 35: control unit

36: timer setting unit 40: signal driver

50: Voice IC

In order to achieve the above object, in the present invention, a plurality of light emitting display units which are installed at both ends of a crosswalk on an automobile road, which are arranged in a line and may be turned on independently of each other in red, green, red or green light according to the purpose; And a control means for controlling the plurality of light-emitting display units arranged in a row to be turned on at a time and then turned off in turn, wherein the plurality of light-emitting display portions are provided in the remaining time display signal lamp for displaying the remaining time of the walking signal. The light emitting device is configured to emit light in at least one or more colors, and the control means constitutes the remaining time display signal light, characterized in that the light emitting element is selected and driven separately from the stop time and the walking time. In a preferred embodiment of the present invention, when the light emitting display unit is stopped from the outside, And an external control signal input means for inputting a signal for notifying the on / off light when walking, wherein the controller judges the external control signal of the input means prior to the on / off cycle of the timer setting unit to stop and walk. It is preferable to provide a sound output means for outputting the control signal by dividing the time and outputting the control signal to the pedestrian in accordance with the flashing cycle of the light emitting display.

According to a feature of the present invention, the remaining time display signal light of the present invention flashes the display sequentially according to the signal serves as a stop light and a walking light itself, and automatically set the flashing period even if the signal cycle is changed, the cost and Operation is simple.

Hereinafter, with reference to the accompanying drawings an embodiment of the remaining time display signal lamp according to the present invention will be described in detail.

1 is a reference diagram showing an installation state of the present invention, Figure 2 is a front view showing a light emitting display of the present invention, Figure 3 is an exploded reference perspective view showing an extract of the present invention, Figure 4 is a system control of the present invention 5 is a flowchart showing a control operation of the present invention.

As shown in Fig. 1 and 2, instead of the usual traffic lights such as stop lights (red light) and pedestrian traffic lights (blue light) on the shore buried in the road, the remaining time signal light 10 is installed, which is a display panel Since the plurality of light emitting displays 11 in 12 are arranged in the length in the remaining time indicator of the rectangular bar type and are connected in series and parallel to the power supply, the signal is interlocked with an external signal controller (not shown). The light emitting display unit 11 is turned on and then turned off one by one in proportion to the remaining time.

The light-emitting display unit 11 can be easily recognized in an inverted triangle shape and accordingly, a pedestrian crossing or a vehicle driver can visually recognize the blinking state of the light-emitting display unit 11 to accurately measure time passing through the road. can do. On the other hand, it can also be used as a bar-shaped graphic bar and may be installed adjacent to a general traffic light to blink every time the traffic light changes so that the remaining time is displayed.

On the other hand, as shown in FIG. 3, the light emitting display unit 11 includes a light emitting diode module 16 in which dozens or hundreds of light emitting diodes 14 are arranged on the light emitting diode substrate 13. A connector 15 for connecting to a circuit board for driving the light emitting diodes on the 16, and these light emitting display portions 11 are individually accommodated in the remaining time display signal lamp 10 and then covered by the lid 20. It is configured to be covered. In addition, the light emitting diodes 14 use the light emitting diode elements having at least one or more colors to display the same color at the time of the stop signal and the walking signal, or red at the stop signal, and blue light at the time of the walking signal. Can flash differently.

As shown in FIG. 4, the remaining time display signal lamp and the control device reduce the AC voltage of 220V supplied from the power supply unit 30 to a predetermined AC voltage 6V through a transformer (not shown), and then the rectifying unit ( 31 is introduced into the input DC voltage of the control unit 35. The power supply unit 30 uses a transformer in this manner, and varies depending on the operating voltage of the circuit element. The power supply unit 30 applies an AC voltage of about 25V to the amplifier unit 51 and the light emitting display unit 11 to about 70V. 31) rectify it and convert it to a predetermined DC voltage. At this time, in case of unexpected power failure such as in case of power failure, the power unit may be replaced by a battery to maintain a constant and constant power in a predetermined circuit, and the control unit supplied with the power required for operation may include an external signal controller (not shown). Receives red (stop) or green (walking) signal transmitted from the time) through the external control signal input unit 32, and stores the initialization program stored in the memory 34, the time program based on the road width, the signal cycle, etc. By using the data of the and the received signal, the signal driving unit 40 to operate each of the light-emitting display unit to be turned on and off so as to operate independently. Here, a plurality of light emitting diode elements integrated in the light emitting display unit may be represented by a red (stop) signal or a green (walking) signal according to an applied voltage as a two-color LED.

On the other hand, when the period of the signal coming from the signal controller is changed according to the traffic volume and traffic conditions, for example, when the first signal cycle was changed from 45 seconds to 45 seconds, the light emitting display parts are sequentially turned off through the control of the controller. The timer setting unit 36 is provided with a selection key so as to operate by automatically changing and setting the time accordingly, and to manually set the time as required.

In addition, a signal from an external signal controller (not shown) is identified and judged by the controller so that the traffic signal is notified to the passer whenever the traffic light changes, and a voice IC control signal is sent to the voice IC 50. When the green signal turns on the light emitting display part through the amplifier unit 51 and the speaker 52, 'blue light is on.' You can go ahead. ' When the voice message is outputted and the green signal is turned off, the voice message 'It is dangerous, please wait for the next signal' appears. As such, the traffic signal is guided to the visually impaired by voice to facilitate the passage of the crosswalk.

FIG. 5 is a flowchart illustrating a control operation of the present invention, in which a signal input from an external signal controller (not shown) is determined (S10), and when it is not a red light signal, the light emitting display unit 11 of the remaining time display signal lamp 10 is illustrated. If the red light is turned on (S11a), then the red light is turned off (off) (S15, S16), and the next step (S20 to S27) is reached. The light emitting display parts are turned on with a red light (S12) and the red signal timer is increased (S12) so that the light emitting display parts are sequentially turned off at a time interval according to a predetermined signal period (S13). In this case, when the red light signal and the red light is not turned on the light emitting display unit, the red light is turned on (S14, S15) and the state is maintained until another signal is input from the signal controller (100).

Meanwhile, in the next step, as in the previous step, when the OFF (off) signal is not a green light signal, when the green light is turned on (S21), the green light is turned on (S21). If it is OFF (light off: S25, S26) and it is off, there is no response to both the blue light signal and the red light signal. In the case of the green light signal, the same control operation as the red light signal will be omitted.

As described above, the present invention is not limited to the above embodiments without departing from the spirit and scope of the present application, and many modifications and variations are possible. For example, although it can be used as a pedestrian traffic light in the above embodiment, it can also be used with a traffic light for a normal vehicle.

As described above, the present invention has the following advantages.

According to the signal of the external signal controller, a plurality of LED display parts are blinked sequentially at regular time intervals so that pedestrians and drivers can easily know the remaining time of the traffic lights. This is reduced.

In addition, even if the signal cycle changes according to changes in traffic volume and traffic conditions, it is easy to operate and maintain because it is automatically set up in conjunction with the signal controller without a person visiting the installation site and setting manually.

In addition, every time the traffic light changes, the control unit identifies and judges the voice message through the voice IC and the speaker, so that it is easy to cross the blind.

Claims (5)

Control means installed at both ends of the crosswalk on the automobile road, the control means for controlling the plurality of light emitting display units which are arranged in a row and can be turned on to emit light respectively and the plurality of light emitting display units arranged in a row are turned on at a time and then turned off in turn. In the remaining time display signal lamp to display the remaining time of the walking signal, including, The plurality of light emitting display units may emit light in at least two colors including red and green, and may be selectively driven in at least one or more colors by being divided into a stop state and a walking state, and the control means may be changed according to traffic conditions. Remaining time display traffic light characterized in that the period of the light-emitting display unit is turned on and off in a variable manner to recognize the signal period. The signal lamp of claim 1, wherein the light emitter is a two-color light emitting diode, and the red light is stopped when the light is stopped by the control means, and the light is turned off in turn after the green light is temporarily turned on when walking. The signal lamp of claim 1 or 2, wherein the light emitting diode module integrated with the light emitting display unit or the plurality of light emitting bodies has an inverted triangle shape in an unlit direction. The apparatus according to claim 1, wherein external control signal input means and input means for inputting a signal for notifying when the light emitting display unit stops or walks when the light is turned off are used to variably set the light-emitting period of the plurality of light emitting display units. A control unit for outputting a control signal for alternately controlling the plurality of light emitting display units at the time of stopping and walking according to the flashing cycle set by the timer setting unit; And a signal driver for selecting and driving a light emitter of the light emitting display unit according to a control signal of the remaining time display signal lamp. The remaining time display signal lamp according to any one of claims 1, 4, and 5, further comprising audio output means for outputting a guide broadcast to a pedestrian in accordance with a cycle of turning on and off the light emitting display.