JPH0379760B2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention provides a power source that is continuously installed on the shoulder of a road, etc., and that informs a traveling vehicle of the condition of the road ahead by flashing a light emitting part. This invention relates to a built-in self-luminous line guide (hereinafter simply referred to as a line guide).

<Conventional technology> There are two types of line-of-sight guide signs: one is a reflex type that reflects light toward the vehicle, and the other is a self-luminous type that emits light.The self-luminous type is better in terms of ease of visibility for drivers. ing. In this case, it is better for the vehicle to have all of the line-of-sight guideposts flash in synchronization (at the same time), or to have adjacent line-of-sight guideposts emit light one after the other (hereinafter referred to as "sequential light emission"), than to have individual line-of-sight guideposts blink at arbitrary timings. This is convenient for guidance.

The self-luminous type is equipped with a power supply line for lighting, and the blinking is synchronized by turning the power supply line on and off. In this case, wiring work for the power supply, etc. is required, and when connecting power lines over long distances, there were problems such as voltage drop and increased cable capacity. Directional signs have been devised.

<Problems to be Solved by the Invention> However, in the case of a line-of-sight guide with a built-in power source that operates using solar cells, etc., there are advantages in that no external power source is required and each line-of-sight guide can be handled independently. On the other hand, if you try to synchronize the blinking, a connection line is required for synchronization, and there is a problem that it cannot be handled independently.

The present invention was created in view of the above circumstances, and
It is an object of the present invention to provide a line-of-sight guide mark that enables flashing of a light emitting part without requiring wiring for synchronous light emission or sequential light emission.

<Means for Solving the Problems> A line-of-sight guide according to the present invention includes a power supply unit 40 having a solar cell 41, a light emitter 27, and a light emitter 27.
and a timing control section 25 connected to the light emission control section 26 to control the light emission timing of the light emitter 27.
a light receiving section 21 that detects the presence or absence of light of a specific wavelength from the outside, converts it into an electrical signal, and outputs a timing signal; The structure includes a light transmitting section 29 connected to each other, and is configured to supply power from the power source 40 to each section, and a timing signal from the light receiving section 21 is connected to the timing control section 25 to control the light emitting body 27. It is configured to be used as a light emission timing.

<Example> Hereinafter, an example according to the present invention will be described with reference to the drawings. FIG. 2 is an external perspective view of the visual guide. In the figure, 27 is a light emitter, and the light emitter 27 has a plurality of high-intensity LEDs arranged on a cylindrical upper peripheral wall.The central cavity of the light emitter 27 has an electric circuit shown in FIG. is included. A solar cell 41 is attached to an upper lid 52 that covers the cavity. The light emitting body 27 is supported from below by a support pipe 51.
The lower end of the block is embedded and fixed in a concrete block 53 provided on the shoulder of the road. The light receiving section 21 and the light emitting section 29 are attached to the upper part of the support pipe 51 using a support fitting 54 at the same height and symmetrically about the axis of the support pipe 51.
In the figure, the light receiving section 21 receives light from the upper left direction, and the light transmitting section 29 is shown to send the light toward the lower right direction.

FIG. 1 is a block diagram of the electric circuit provided in the visual guide. This electric circuit is a power supply section 40
, a light emission control section 26 , and a timing control section 25
, a light receiving section 21 and a light transmitting section 29. Although not shown, the first line of sight guide has a light receiving section 21.
A self-excited oscillator is placed in place of the self-excited oscillator, and based on the output of this self-excited oscillator, the light transmitting section 29 emits a timing light beam 18 of a specific wavelength, such as infrared light, which blinks at a constant period. FIG. 3 is a schematic diagram of an example of the use of visual guide marks, in which a plurality of visual guide marks 72a, 72b, and 72c are installed at approximately regular intervals so that the timing light beam 18 can be sequentially delivered from the light transmitting part to the light receiving part. It shows where it was done.

The operation of the visual guide of the present invention will be explained below with reference to FIGS. 1 and 2.

The light receiving part 21 of the line guide sign is the timing light beam 18
Then, the output is sent to the light transmitting section 29 as a timing signal. The light transmitting unit 29 transmits light of a specific wavelength synchronized with the timing signal to the next visual guide. On the other hand, the timing signal from the light receiving section 21 is sent to the timing control section 25. The timing control section 25 sends a pulse with a necessary repetition frequency based on the blinking period of the timing light beam 18, or detects the rise of the timing light beam 18 and sends it as a pulse with a unique repetition frequency to the light emission control section 26. The light emission control unit 26 is a part that amplifies the signal from the timing control unit 25 and determines the light emission state of the light emitter 27, such as the luminance of light emission.
The light emitter 27 causes the LED, which is the light emitter 27, to emit light based on the output of the light emission control section 26. The battery 43 is used for charging, and the power supply control unit 4
2 to the solar cell 41.
The power supply control section 42 is of a known type that charges the battery 43 with the output of the solar cell 41 during the daytime, and connects the battery 43 to each circuit at night when the visual guide is in operation. In this way, the timing beam 18 connects each delineator with the result that the illuminant 2
7 will emit light synchronously or sequentially without requiring connection for synchronization.

In addition, in the case of sequentially emitting light, it is preferable to provide a delay circuit in the light emitting control section 26 and setting the delay time of the delay circuit so that the next line-of-sight guidepost sequentially emits light with a delay.

<Effects of the Invention> As described above, the line-of-sight guide according to the present invention has an internal power source and is configured to connect adjacent line-of-sight guides using timing light beams. Therefore, it has become possible to use each line-of-sight guide independently without the need for a connection line for synchronization.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an electric circuit provided in a visual guide, FIG. 2 is an external perspective view of the visual guide, and FIG. 3 is a schematic diagram showing an example of how the visual guide is used. 21... Light receiving section, 25... Timing control section,
26...Light emission control section, 29...Light sending section, 40...
Power supply part.

Claims (1)

[Claims] 1. A power supply unit 40 having a solar cell 41, a light emitting body 27, a light emission control unit 26 that controls the light emission state of the light emission body 27, and a light emission control unit 26 connected to the light emission control unit 26 to control the light emission timing of the light emission body 27. a timing control section 25 that detects the presence or absence of external light of a specific wavelength, converts it into an electrical signal, and outputs a timing signal; and a light receiving section 21 that receives the timing signal and converts it into light of the specific wavelength. The light transmitting section 29 is configured to supply power from the power source 40 to each section, and the timing signal from the light receiving section 21 is connected to the timing control section 25. , luminous body 2
7. A self-luminous line guide sign with a built-in power source, characterized in that it is configured to be used as a light emission timing.