JP2973395B2 - Display device for traffic signal and traffic signal - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traffic signal display device and a traffic signal device, and more particularly to a traffic signal display device and a traffic signal device for displaying information such as traffic information, traffic slogans, and advertisements.

[0002]

2. Description of the Related Art Traffic signals are intended to smooth the flow of vehicles and people and to prevent traffic accidents. For this reason, the traffic signal is sequentially turned on in three colors of green, yellow and red by time control. In addition, a display board for displaying the name of an installation place of the traffic light and a display board for describing an advertisement are attached to upper and lower portions or side surfaces of the traffic light.

[0003]

By the way, in the above-mentioned display panel, it is easy to confirm the display contents by external light in the daytime, but it is difficult to confirm the display contents when the external light is dark at night or the like. There were problems such as difficulty. In addition, there is a problem that it is difficult for a driver or a pedestrian to confirm the signal light by sunlight in the daytime only by lighting the signal with the traffic signal alone.

[0004] The present invention has been made in view of such circumstances, and can easily confirm the signal color by a driver or a pedestrian, and has a function of confirming traffic information, a traffic slogan, and an advertisement function by advertising. It is an object of the present invention to provide a traffic signal display device and a traffic signal.

[0005]

According to the present invention, there is provided a display means for displaying information such as traffic information, traffic slogans, advertisements, which is disposed at a position visible at the same time as a traffic signal to achieve the above object. Display means for switching and displaying a plurality of pieces of information on the display surface, and switching and displaying the emission color of the background of the information to three colors of green, yellow and red; and arranging for each lamp of each color of the traffic signal. Detecting means for detecting the on / off state of each lamp without changing the electric circuit of the traffic signal; and detecting the plurality of lights in synchronization with the switching of the lighting color of the traffic signal based on the detection output of the detecting means. Control means for sequentially switching information and displaying the information on the display means, and switching and controlling the background light emission color of the display means to be the same as that of the traffic signal.

Thus, the signal color can be confirmed not only with the signal light but also with the background color of the display means.
Various information displayed on the display means can be checked at the same time. Further, since a plurality of pieces of information are switched and displayed in synchronization with the switching of the lighting color of the traffic signal, the amount of information displayed on the display means can be increased. According to another aspect of the present invention, traffic information, traffic slogans,
A surface light emitting means for displaying information such as an advertisement on a display surface and switching the light emission color of the background of the information between green, yellow, red or green and red to emit light, and setting a background color of the surface light emitting means to a predetermined value. Green, yellow, red or green,
Switch between flashing green and red to emit light,
Control means for switching information to be displayed on the surface light emitting means at the predetermined timing.

As a result, even in the case of a traffic signal having the same size as a conventional traffic signal, the light emitting area is increased, and the visibility is improved. Further, for example, in the case of a traffic signal exclusively for pedestrians, "WALK", "STO"
"P" or a pedestrian mark or the like indicating these can be switched and displayed according to the emission color of the background, and the display contents of the traffic signal can be more visually recognized.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a traffic signal display device and a traffic signal according to the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is an external view showing a state in which a traffic safety panel (hereinafter, referred to as a TS panel) constituting a display device for a traffic signal according to the present invention is attached to the traffic signal. In the figure, reference numeral 10 denotes a publicly known traffic signal having three colors of green, yellow, and red, which is attached to a support rod 12 from a telephone pole (not shown) via a fitting 14 below.

Reference numeral 20 denotes a TS panel, specifically, a color plasma display panel. The TS panel 20 is mounted above the traffic signal 10 via the mounting bracket 14 so that the TS panel 20 can be visually recognized simultaneously with the traffic signal 10. At the intersection of a crossroad as shown in FIG.
For example, four T-mounts mounted on a traffic light for roadways
A total of twelve S panels 20A and eight TS panels 20B attached to sidewalk traffic signals are installed. And these 12 TS panels 20A, 20A
In B, the display pattern on each panel surface is simultaneously controlled from the controller 30 via the optical communication cable 35.

FIG. 3 is a block diagram showing one embodiment of the internal configuration of the TS panel and the controller. As shown in FIG. 1, the TS panel 20 mainly includes a synchronization detector 21, a central processing unit (CPU) 23, a memory 24, a video signal generator 25, a display control circuit 26, and a light emitting panel 27. The controller 30 mainly includes a 16-channel multiplexer 31 and an RS for performing optical communication.
232C circuit 32, a memory card unit 33, and a power supply unit 34.

The controller 30 is operated to change the display pattern of traffic information, traffic slogans, advertisements and the like displayed on the TS panel 20. By changing the memory card in the memory card unit 33, the controller 30 is operated. The display pattern data recorded in advance corresponding to the lighting colors of the traffic signals is read in
Each TS panel 20 is connected via an S-232C circuit 32, a 16-channel multiplexer 31, and an optical communication cable 35.
To transfer the display pattern data.

The display pattern data transferred from the controller 30 is stored in a memory 24 via an optical communication interface (not shown) of the TS panel 20 and a CPU 23. A synchronization signal is applied to the CPU 23 of the TS panel 20 from the synchronization detector 21 via the traffic light interface 22. The synchronization detector 21 is provided for each lamp of each color of the traffic signal 10 and outputs a synchronization signal indicating the ON / OFF state of each lamp in synchronization with the signal switching. The detector is not electrically connected.

For example, as shown in FIG. 4, a coil 21A is wound around each lead wire 10B for lighting each lamp 10A of a traffic signal, and is generated by a current flowing when the lamp is turned on, as shown in FIG. A device that converts a magnetic field into an electric signal, a photosensor 21B that is disposed opposite to each lamp 10A of a traffic signal and converts light when the lamp is turned on into an electric signal as shown in FIG. In addition, in FIG. 5, 10B is a sunshade cover of the lamp.

In FIG. 3, a CPU 23 outputs a lighting color of a lamp among display pattern data stored in a memory 24 based on a synchronization signal which is applied via a traffic light interface 22 and indicates a color of a currently lighting lamp. Read the display pattern data stored corresponding to
Advertising characters displayed by the display pattern data,
The information such as the pattern is white light emission, and the video signal is output to the display control circuit 26 via the video signal generator 25 so that the background color is the same color as the traffic light.
6 causes the light emitting panel 27 to emit light based on the input video signal.

That is, when the green lamp 10G of the traffic light 10 is lit as shown in FIG. 6 (A), information corresponding to green is displayed on the TS panel 20 and the background color is changed to green. The color is developed so that Similarly, when the yellow lamp 10Y of the traffic light 10 is lit as shown in FIG. 6B, information corresponding to yellow is displayed on the TS panel 20 and the background color is yellow. When the red lamp 10R of the traffic signal 10 is turned on as shown in FIG. 6C, information corresponding to red is displayed on the TS panel 20 and the background color is displayed. The color is developed to be red. Note that the operating temperature range of the TS panel 20 is 0 ° C.
The temperature of the thermo-heater is increased by the power source 28 so that the temperature becomes 45 ° C.
The fan heater 29 is driven. The power supply 28 is
Power is supplied to each circuit of the panel 20.

According to the above configuration, information such as advertising characters and patterns is emitted in white on the panel surface of the TS panel 20, and the back color is switched in synchronization with the switching of the traffic light so as to be the same color as the traffic light. Can be As described above, the TS panel 20 can provide various information to the driver and the pedestrian, and the entire panel surface can be switched so as to emit the same color as the traffic light. It can have a function as an auxiliary traffic light that can be viewed. Further, since the information displayed on the TS panel 20 is switched in accordance with the lighting color of the traffic light, a large amount of information can be displayed. Further, since the TS panel 20 is provided completely separate from the electric system of the traffic signal, the reliability of the traffic signal is not impaired.

In this embodiment, the information displayed on the TS panel 20 is switched according to the lighting color of the traffic light. However, the present invention is not limited to this. For example, more than three types of information are stored in the memory 24. The information may be stored and the information may be sequentially switched and displayed in synchronization with the switching of the traffic light. Further, the TS panel is configured using a color plasma display panel, but is not limited thereto, and may be configured using, for example, a light emitting diode panel or a liquid crystal display.

Next, an embodiment of a traffic signal according to the present invention will be described. In FIG. 7, reference numeral 110 denotes a light emitting panel showing a display portion of the traffic signal according to the present invention, and more specifically, a color plasma display panel. The light-emitting panel 110 includes a support rod 1 from a telephone pole (not shown).
12 is a traffic signal dedicated to pedestrians.

The light emission and display contents of the light emitting panel 110 are controlled by a controller 114 and a panel driving circuit 116 as shown in FIG. That is, the controller 114 includes a timer, and a control signal for sequentially switching the light emitting panel 110 to green, green blinking and red at predetermined time intervals, and a character "WALK" in the case of green.
A white pattern signal indicating a white pattern signal (see FIG. 7A) and a red pattern signal indicating a character “STOP” (see FIG. 7B) in the case of red are output to the panel drive circuit 116,
The panel drive circuit 116 causes the entire light emitting surface of the light emitting panel 110 to emit light in the emission color specified by the control signal based on the input control signal and pattern signal, and displays characters specified by the pattern signal.

The information to be displayed on the pedestrian-specific traffic signal is, in addition to the above-mentioned character information, respectively.
As shown in (A) and (B), a pedestrian mark indicating the state in which the pedestrian is walking and the information in which the pedestrian is stopped may be displayed. According to the above configuration, the entire light-emitting surface of the light-emitting panel 110 emits one color, so that when compared with a traffic signal having the same size as a conventional traffic signal, the light-emitting area can be increased, and
Information such as characters can also be displayed, and visibility is improved. Although the color plasma display panel is used as the light emitting panel, the present invention is not limited to this, and a light emitting diode panel and a liquid crystal display may be used.

[0021]

As described above, according to the traffic signal display device of the present invention, the display means for displaying information such as traffic information, traffic slogans, advertisements, etc. is switched to emit light in the same color as the traffic signal. As a result, it is possible to function as an auxiliary traffic signal that allows the driver or the pedestrian to easily recognize the signal color. In addition, since it is arranged at a position where it can be viewed at the same time as a traffic signal, it is possible to provide a display device with a high advertising function when transmitting various information to a driver or a pedestrian. Since a plurality of pieces of information are sequentially displayed in synchronization with the switching, a lot of information can be displayed.

Further, according to the traffic signal according to the present invention,
Since the emission color is sequentially switched over the entire emission surface of the surface emission means at a predetermined timing, the emission area increases even in the case of a traffic signal having the same size as a conventional traffic signal, and the signal color by a driver or a pedestrian is increased. Can be easily checked,
Further, since information such as characters is switched in synchronization with the switching of the emission color, more attention can be drawn.

[Brief description of the drawings]

FIG. 1 is an external view showing a state in which a display device for a traffic signal according to the present invention is mounted on a traffic signal.

FIG. 2 is a diagram illustrating an example of an arrangement of a TS panel and a controller at a crossroad intersection;

FIG. 3 is a block diagram illustrating a configuration example of a TS panel and a controller.

FIG. 4 is a diagram illustrating an example of a synchronization detector illustrated in FIG. 3;

FIG. 5 is a diagram showing another example of the synchronization detector shown in FIG. 3;

FIGS. 6 (A) to 6 (C) are diagrams showing lighting colors of traffic signals and display information on a TS panel, respectively.

FIGS. 7A and 7B are external views showing display examples of a traffic signal according to the present invention, respectively.

FIG. 8 is a block diagram of a traffic signal according to the present invention.

9 (A) and 9 (B) are external views showing other display examples of the traffic light according to the present invention, respectively.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Traffic light 10A ... Lamp 20, 20A, 20B ... TS panel 21 ... Synchronous detector 21A ... Coil 21B ... Photo sensor 23 ... CPU 24 ... Memory 25 ... Video signal generator 26 ... Display control circuit 27, 110 ... Light emitting panel 30, 114: controller 116: panel drive circuit

Claims (2)

(57) [Claims] 1. Display means for displaying information such as traffic information, traffic slogans, advertisements, etc., which is disposed at a position visible at the same time as a traffic signal, and switches a plurality of pieces of information of more than three types on a display surface. Display means for displaying the information while switching the background color of the information to three colors of green, yellow, and red; and arranging the on / off state of each lamp provided for each color lamp of the traffic signal. Detecting means for detecting the electric circuit of the traffic signal without changing; and switching the plurality of pieces of information sequentially on the display means in synchronization with switching of the lighting color of the traffic signal based on the detection output of the detecting means and displaying the information on the display means. Control means for controlling the display means so as to switch the emission color of the background to the same color as the traffic signal, the control means comprising: 2. Characters, marks, etc. indicating the contents of traffic signals
A plurality of pieces of information are displayed on a display surface, and the background color of the information is green, yellow, red or green, and a surface light emitting unit that emits light by switching to red. Control to sequentially switch green, yellow, red or green, blinking green, and red at the timing to emit light, and to switch information displayed on the surface light emitting means at the predetermined timing so as to be information corresponding to the emitted color. Means for traffic light, comprising: