JPH0534445B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a delineator that uses a solar cell as a power source to turn on or blink a plurality of light emitting diodes to attract attention.

(Prior art and problems) Self-luminous delineators, which are installed for the purpose of marking road shoulders and guiding the line of sight on meandering roads, are powered by commercial power sources, dry batteries, etc. If you use it on roads where there is no traffic, you will need to replace the batteries regularly.
Maintenance work is extensive. Therefore, a self-luminous delineator was devised that uses solar cells as a power source. (Publication of Utility Model Publication No. 52-95389, Japanese Patent Application Publication No. 52-89081)
(Refer to Japanese Patent Application Laid-Open No. 52-89082) The on/off switch of these self-luminous delineators uses a solar battery as a power source for the light emitting diode and at the same time as a means to detect the brightness and darkness of the surroundings. Light-emitting diodes are operated using signals. That is, the level of the output voltage of the solar cell is converted into a signal.

For example, during the day, when the output voltage of the solar cell is high, the storage battery is charged, and after sunset, when the output voltage falls below a certain value, the storage battery is discharged and the light emitting diode lights up or blinks. Then the sun rose,
When the output voltage of the solar cell exceeds a certain value, discharging from the storage battery stops, and at the same time, the output of the solar cell charges the storage battery.

In fact, self-illuminating delineators are installed in places where roads are very meandering or in areas where traffic accidents occur frequently, and it is common for them to be installed in multiple rows at regular intervals. For this reason, only the light-emitting diode of a self-luminous delineator installed in the shadow of an obstacle such as a tree may start to turn on or blink quickly, or even if the individual blinking cycles are set constant, multiple self-luminous delineators may Looking at the type delineators, each self-luminous type delineator blinks randomly, which confuses passing cars and has the drawback of not being able to provide accurate traffic information.

(Objective of the present invention) The present invention eliminates the above-mentioned drawbacks, and maintains the maximum effect of using solar cells as a power source, that is, the freedom of installation (no need for power supply wiring), while maintaining the flexibility of installation (no need for power supply wiring). To provide a self-luminous delineator which provides correct traffic information to passing vehicles by linking the lighting or blinking operations of the luminous delineator.

(Means for Solving the Problems) In order to achieve the object of the present invention, as a technical means, a plurality of light emitting diodes arranged on the surface of a lamp device are turned on or blinked using a solar cell as a power source. A plurality of self-emitting type delineators are installed, and each self-emitting type delineator is provided with means for transmitting and/or receiving a control signal for lighting or blinking the light emitting diode.

(Example) Hereinafter, an example of the self-luminous delineator of the present invention will be described in detail based on the drawings.

FIG. 1 is an external view of the self-luminous delineator of the present invention.

The self-emitting type delinator 1 is composed of a solar cell 2, a cell case 3, a light emitting diode 4, and a lamp device (hereinafter referred to as the main case) 5.

The solar cell 2 is a power source for the light emitting diode 4, and is made of materials such as crystalline silicon, amorphous silicon, GaAs, and polymer semiconductors, and generates electricity when exposed to light of a certain level or higher.

The cell case 3 is made of a semi-elliptical transparent resin, and serves to protect the solar cell 2 from the outside air and at the same time efficiently concentrate sunlight on the solar cell 2 .

The light emitting diode 4 lights up or blinks at night due to the operation of a block circuit which will be described later.

The main body case 5 fixes the cell case 3, a front cover 6, a reflector 7, etc., which will be described later, and protects the internal electronic circuit and secondary battery. In order to protect these, the main body case 5 is made of polycarbonate resin or the like with excellent weather resistance and impact resistance.

The solar cell 2 is placed on the upper surface of the main body case 5, filled with transparent resin such as EVA or silicone resin, and the cell case 3 is provided. The electromotive force from the solar cell 2 is connected to a control electronic circuit and a secondary battery via lead wires (not shown). A plurality of light emitting diodes 4 are installed upright on a circuit board inside the main body case 5, protruding from one surface of the main body case 5 in a ring shape, and the light emitting diodes 4 are arranged so as to be in close contact with the surface of the main body case 5. A transparent front cover 6 is provided to cover 4. This completely blocks moisture and the like from entering through the protruding portions of the light emitting diode 4 and the main body case 5.

Further, in order to improve the visibility of the self-luminous delinator 1, a reflector 7 is provided at the center of the ring-shaped light emitting diode 4.
Reference numeral 10 denotes a mount, and the mount 10 attaches the main body case 5 to the support pole 11 using fixing means such as screws. Also, on the outer surface of the main body case 5, a transmitting means 8 for transmitting a blinking synchronization control signal to another self-luminous delinator 1' installed nearby.
For example, a receiving means 9 is provided for receiving a blinking cycle control signal from an adjacent self-luminous delinator 1. Here, the receiving and transmitting means 8 and 9 are, for example, a combination of an infrared LED and a photo sensor such as a photodiode, a transmitting antenna using FM waves,
and receiving antennas.

FIG. 2 is a block circuit diagram of a self-luminous delineator according to the present invention.

FIG. 2A is a block circuit diagram of a self-luminous delineator 1 serving as a key station, and FIG. 2B is a block circuit diagram of a self-luminous delineator 1' serving as a repeater or terminal device. Note that common parts are given the same reference numerals.

First, the main circuit, which is a common feature in the block circuit diagrams of FIGS. 2a and 2b, will be explained. The solar cell 2 is connected to the main body case 5 via the backflow prevention diode 13 to the pole 1.
A secondary battery 14 such as a Ni-Cd battery housed in 1
connected to. The secondary battery 14 stores the electromotive force generated by the solar cell 2, and at the same time serves as a reserve in case a state in which power generation is not possible continues during the day. The anode of this secondary battery 14 is connected to the light emitting diode 4 which is a light emitter via a light emission control circuit 15, and is connected to the cathode of the secondary battery 14.

The light emission control circuit 15 includes a clock circuit 16 which will be described later.
Or, it is operated by signals from the demodulation circuit 17 and the lighting discrimination circuit 18, and is composed of a monostable multivibrator, a switching transistor, a current limiting resistor, etc., and is an ultra-high-brightness light emitting diode that lights up in red, orange, etc. 40-120 times/mm
to blink.

In Figure 2a, a signal a from the solar cell 2
is a voltage signal of the generated power, and is input to the lighting discrimination circuit 18. The lighting discrimination circuit 18 compares the voltage signal a with a reference voltage, and outputs switching signals b' and b'' when the voltage signal a is less than a certain reference voltage.

That is, the surroundings become dark (evening) and the voltage generated by the solar cell 2 decreases. Due to the change in signal a, signals b' and b'' change from OFF to ON.
Note that an optical sensor such as Cds may be used instead of detecting the voltage generated by the solar cell 2.

The clock circuit 16 to which the switching signal b' is input generates a clock signal which is transmitted at a frequency of 40 to 120 times/mm.
The clock signal C' output from the clock circuit 16 is input to the light emission control circuit 15, which turns on the main circuit (power supply circuit) and turns on the light emitting diode 4. Make it blink.

The modulation signal generation circuit 19 to which the switching signal b'' and the clock signal c'' are input receives the clock signal b'' and the clock signal c''.
c'', a lighting synchronization signal d is generated.

This lighting synchronization signal d is transmitted by an infrared ray which is a transmitting means 8.
By making the LED emit light, a signal is given wirelessly to the self-emitting type delinator 1' of the relay machine or the terminal machine.

Next, in the block circuit diagram of the self-emitting type delinator 1' of the repeater or terminal device shown in FIG. 2b,
Lighting synchronization signal d by infrared rays transmitted from self-luminous delinator 1, which is the station in Figure 2 a.
is received by a receiving means 9 such as a photo sensor.

The demodulation circuit 17 passes the lighting synchronization signal d received by the receiving means through a high-pass filter, etc., removes noise, and outputs it as a lighting synchronization demodulated signal e. When the switching signal b', which varies depending on the lighting synchronization demodulation signal e and the voltage generated by the solar cell 2 and is output from the lighting discrimination circuit 18, is input to the light emission control circuit 15, the light emission control circuit 15 The light emitting diode 4 of the station self-illuminating type delinator 1 is turned on or blinks in synchronization with the light emitting diode 4 or at a certain period with regularity (such as reverse).

Further, in the self-luminous type delinator 1' of the repeater, the switching signal b'' outputted from the lighting discrimination circuit 18 and the lighting synchronization demodulated signal e outputted from the demodulation circuit 17 are input to the modulation signal generation circuit 19.
The modulation signal generation circuit 19 generates a lighting synchronization signal f in synchronization with the light-emitting diode 4 of the self-luminous delinator 1 of the key station or at regular intervals, and generates a lighting synchronization signal f in synchronization with the light-emitting diode 4 of the self-luminous delinator 1 of the key station, and transmits it to the self-luminous delinator 1' of the adjacent repeater or terminal device. The infrared LED, which is the transmitting means 8, emits light toward the target.

In addition, the light emitting diode of the self-emitting type delinator, which is an end-of-life model, can be used as long as there is a receiving means and a light emission control circuit.
It can be turned on or blinked in synchronization with the light emitting diode of the self-luminous delinator of the key station and repeater or in a regular cycle.

In addition, with self-emitting type delinators for repeaters and end-of-life devices, the light-emitting diode can be turned on or blinked only by the lighting synchronization demodulation signal from the receiving means, omitting the voltage signal generated by the solar cell and the lighting discrimination circuit. , a modulation signal generation circuit may be activated.

In the block circuit diagram above, infrared LEDs and photosensors were used as the transmitting and receiving means.
An antenna may be used to utilize FM waves at a certain frequency.

(Function) When multiple self-luminous delineators configured as described above are installed in series around the self-luminous delineator of the key station, it is possible to make each self-luminous delineator blink at the same time or alternately. The regular flashing of the lights as a whole conveys accurate traffic information to passersby, such as meandering roads and sharp curves.

In addition, even if some of the installed self-luminous delineators are shaded by trees, road structures, etc. at dusk, the lighting synchronization signal from the self-luminous delineators at the key station cannot be obtained, so the shade Lighting of a portion of the self-luminous delineators can be suppressed, and a series of self-luminous delineators can be lit at the same time.

(Effects) As described above, the present invention provides means for transmitting and receiving signals for controlling the lighting or blinking cycle of light emitting diodes in a plurality of installed self-luminous delinators, thereby controlling the blinking operation. It is possible to have a series of connections and provide correct traffic information to passersby.

Furthermore, since a plurality of self-luminous delineators can be turned on or blinked at the same time, visibility can be improved.

[Brief explanation of the drawing]

FIG. 1 is an external view of the self-luminous delineator of the present invention, FIG. 2 is a block circuit diagram of the self-luminous delineator of the present invention, and FIG. FIG. 2b is a block circuit diagram of a repeater or a terminal, respectively. 2... Solar cell, 4... Light emitting diode, 8... Transmitting means, 9... Receiving means.

Claims (1)

[Claims] 1. A plurality of self-luminous delineators are installed that use solar cells as a power source to light up or blink multiple light emitting diodes arranged on the surface of the lamp device, and each self-luminous delineator has a light emitting diode that lights up or blinks. 1. A self-luminous delineator characterized by comprising means for transmitting and/or receiving a control signal.