JP3532367B2 - Light-emitting road marking device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-luminous road marking device which is preferably used mainly as a road stud, an intersection stud, a curbstone, etc., which is installed on a road surface. is there. 2. Description of the Related Art Conventionally, self-luminous road marking devices such as road studs, intersection studs, curbstone studs and the like generally include a solar cell a as a power source and a solar cell a generated during the day as shown in FIG. At night, when light is not incident on the solar cell a and no electromotive force is generated, the power from the storage battery b is supplied to the light emitting diode c, and the light emitting diode c is turned on or off. A lighting signal generator d for blinking,
It is composed of a storage battery b and a connector e for electrically disconnecting the lighting signal generating section d and the light emitting diode c in a packing state at the time of shipment from the factory, and these are stored in a case and installed on a road surface. . As described above, the storage battery b is electrically disconnected from the lighting signal generator d and the light emitting diode c by the connector e in the packing state at the time of shipment from the factory. Since no light is incident and the state is the same as at night, the lighting signal generator d
Operates to stop the light emitting diode c from emitting light. Therefore, at the time of construction, it is necessary to loosen the screw beforehand, remove the lid of the case storing the storage battery b and the like, connect the connector e, and make the light emitting diode c emit light. However, since self-luminous road marking devices such as road studs, intersection studs, and curbstone studs are installed on the road surface, they are required to have high waterproofness. Packing material is attached to the part,
If the lid of the case is opened and closed at the time of construction, there is a problem that the waterproofness is impaired when the screw is not properly tightened or when sand or stone is caught in the packing material. When many such self-luminous road marking devices are to be constructed, the work of loosening the screws and removing the case lid, connecting the connector e, covering the case lid again and tightening the screws takes time, It was troublesome. Therefore, the present invention solves the above-mentioned problems, stops the light emission of the light emitting diode in a packaged state, and opens and closes the package without opening and closing the case lid at the time of construction. It is intended to provide a self-luminous road marking device capable of emitting light. [0006] In order to achieve the above object, the present invention has the following arrangement. That is, the self-luminous road marking device according to the present invention is a self-luminous type in which the electromotive force of the solar cell is charged in the storage battery, and this power is supplied by the lighting signal generating unit to light or blink the light emitting diode. In a road marking device, the solar cell is divided into a plurality, and when an electromotive force is generated only in a part of the solar cells, the state is turned off and the state is maintained thereafter, and the solar cells other than the above Also, a holding circuit that is turned on when an electromotive force is generated and holds that state thereafter, and a day / night determination circuit that is turned on only when no electromotive force is generated in all solar cells. And a control unit comprising an AND circuit for calculating the logical product of the output of the holding circuit and the output of the day / night discriminating circuit. The output of this control unit controls the lighting signal generation unit, and the light emitting diode is used at night. Over de is on or blinking, is characterized in that adapted to daytime is turned off. According to the present invention, in a plurality of solar cells, the holding circuit is turned off by first causing light to be incident on only some of the solar cells to generate an electromotive force. If it is packed, the holding circuit will keep the off state, so even if it is packed and the day / night discrimination circuit is in the on state, the AND circuit will be closed and the output of the control unit will be stopped. The light emitting diode does not emit light during. Next, when the package is opened, light does not normally enter only a part of the plurality of solar cells, light enters all the solar cells, and electromotive force is applied to other solar cells. Occurs, the holding circuit is turned on,
Thereafter, the state is maintained even at night. At night, when no light is incident on all solar cells and no electromotive force is generated, the day / night discrimination circuit is also turned on, the AND circuit is opened, the output of the control unit is input to the lighting signal generation unit, and light emission is performed. The diode is lit or flashed. Next, from night to day, when light is again incident on all the solar cells to generate an electromotive force, the day / night determination circuit is turned off, the AND circuit is closed, and the light emitting diode is turned off. Therefore, when the light emitting diode is stopped in the package state and the package is opened at the time of construction, the light emitting diode can be made to emit light. Further, in the normal case, since no electromotive force is generated only in a part of the plurality of solar cells, the light emission of the light emitting diode is not stopped because the holding circuit is turned off after the installation. . Next, an embodiment of the present invention will be specifically described with reference to the drawings. FIG. 1 is a circuit diagram showing an embodiment of the present invention, and FIGS. 2A and 2B are explanatory diagrams showing examples of arrangement of solar cells. 1 and 2, reference numeral 1 denotes a solar cell;
It is divided into four first to fourth solar cells 11, 12, 13, and 14. Reference numeral 2 denotes a storage battery that charges the electromotive force generated during the day by each solar cell 1. Reference numeral 3 denotes a backflow prevention diode connected between each solar cell 1 and the storage battery 2 to prevent the power charged in the storage battery 2 from flowing back toward the solar cell 1 at night when the electromotive force of the solar cell 1 is lost. It is. The number of the solar cells 1 is not particularly limited. A control unit 4 includes a holding circuit 5, a day / night discriminating circuit 6, and an AND circuit 7. Holding circuit 5
Is composed of a first signal circuit 51, a second signal circuit 52, and a CMOS static circuit 53 with low power consumption. The first signal circuit 51 is connected to the reset terminal R of the static circuit 53, and the set terminal S is connected to the set terminal S. The second signal circuit 52 is connected. Further, the first signal circuit 51 and the second signal circuit 52 have first to fourth solar cells 1 respectively.
1, 12, 13, and 14 are input. When an electromotive force is generated only in the first solar cell 11 and the third solar cell 13, the first signal is input from the first signal circuit 51 to the reset terminal R. When the first signal is input to the reset terminal R from the first signal circuit 51, the holding circuit 5 is turned off, and is then packed to generate electromotive force in the first solar cell 11 and the third solar cell 13. Even if you do not
The off state is maintained. Next, when an electromotive force is also generated in the second solar cell 12 and the fourth solar cell 14, a second signal is input from the second signal circuit 52 to the set terminal S. When the second signal is input to the set terminal S from the second signal circuit 52, the holding circuit 5 is turned on,
The set signal is output from the output terminal Q. Even if it becomes night after that, no electromotive force is generated in the second solar cell 12 and the fourth solar cell 14, the on state is maintained. The day / night discriminating circuit 6 includes first to fourth solar cells 1
All of the electromotive forces 1, 12, 13, and 14 are input, and a determination signal that is turned on only when no electromotive force is generated in all of the first to fourth solar cells 11, 12, 13, and 14 is generated. Is output. The AND circuit 7 is a circuit for calculating the logical product of the set signal of the holding circuit 5 and the discrimination signal of the day / night discrimination circuit 6, and is turned on only when the set signal and the discrimination signal are input. The control signal is output. Reference numeral 8 denotes a lighting signal generating unit, which receives a power of the storage battery 8 and a control signal from the control unit 4. Reference numeral 9 denotes a light emitting diode, which outputs a lighting signal from a lighting signal generating unit 8 based on a control signal from the control unit 4. The light emitting diode 9 receives the power of the storage battery 2 in response to the lighting signal and lights up at night. Or it flashes and goes out during the day. The number of the light emitting diodes 9 is not particularly limited. Next, the operation of the self-luminous road marking device having the above configuration will be described. First, in the four solar cells 1, light is artificially made incident only on the first solar cell 11 and the third solar cell 13 to generate an electromotive force. When an electromotive force is generated only in the first solar cell 11 and the third solar cell 13, the first signal is output from the first signal circuit 51 to the reset terminal S.
, And the holding circuit 5 is turned off. If the package is packed in that state, the holding circuit 5 keeps the OFF state, so that even if the package is packed and the day / night discriminating circuit 6 is in the ON state, the AND circuit 7 is closed and the control section 4 turns ON. Is not output, and the light emitting diode 9 does not emit light during packing. Next, when the package is opened, light does not enter only the first solar cell 11 and the third solar cell 13 in a normal natural state, but enters the second solar cell 12 and the fourth solar cell 14. Also, light is incident to generate an electromotive force. When an electromotive force is also generated in the second solar cell 12 and the fourth solar cell 14, a second signal is input from the second signal circuit 52 to the set terminal S, the holding circuit 5 is turned on, and the set signal is output. Output from output terminal Q. Even if the nighttime thereafter occurs, no electromotive force is generated in the second solar cell 12 and the fourth solar cell 14, the on state is maintained. In the nighttime when no light is incident on all the solar cells 1 and no electromotive force is generated, the day / night discrimination circuit 6
Is turned on to output an ON determination signal, the AND circuit 7 is opened, and an ON control signal is input from the control unit 4 to the lighting signal generating unit 8. The light emitting diode 9 is turned on or blinked. Next, from night to day, when light is incident on all the solar cells 1 again to generate an electromotive force, the day / night determination circuit 6 is turned off, the AND circuit 7 is closed, and the light emitting diode 9 is turned off. You. Thereafter, the holding circuit 5
Since the ON state is maintained, the ON / OFF of the day / night discriminating circuit 6 repeatedly turns on or blinks the light emitting diode 9 at night and turns off the light during the day. The first to fourth solar cells 11, 12,
Although the arrangement of 13 and 14 is not particularly limited, as shown in FIG. 2A or FIG.
If the solar cell 13 and the second solar cell 12 and the fourth solar cell 14 are arranged apart from each other without bias, in a normal case after construction, the first solar cell
Since it is almost impossible to generate electromotive force when light is incident only on the solar cell 11 and the third solar cell 13, the holding circuit 5 is turned off after the application and the light emission of the light emitting diode 9 is performed. It will not stop. According to the present invention, the light emission of the light emitting diode can be stopped in the packed state, and the light emitting diode can be made to emit light by opening the package at the time of construction. There is no need to loosen such screws to remove the lid of the case, connect the connector, cover the lid of the case again, and tighten the screws, so that the construction time is shortened and the waterproofness is not impaired.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a circuit diagram showing one embodiment of the present invention. FIGS. 2A and 2B are explanatory diagrams showing examples of arrangement of solar cells. FIG. 3 is a circuit diagram showing a conventional example. DESCRIPTION OF SYMBOLS 1 solar cell 11 first solar cell 12 second solar cell 13 third solar cell 14 fourth solar cell 2 storage battery 3 backflow prevention diode 4 control unit 5 holding circuit 51 first signal circuit 52 second signal circuit 53 Static circuit 6 Day / night discriminating circuit 7 AND circuit 8 Lighting signal generator 9 Light emitting diode

Claims (1)

(57) [Claims 1] An electromotive force of a solar cell is charged into a storage battery,
A self-luminous road marking device in which this power is supplied by a lighting signal generating unit so that a light emitting diode is turned on or blinks.The solar cell is divided into a plurality, and only a part of the solar cells is used. When an electromotive force is generated, the state is turned off and the state is maintained thereafter, and when an electromotive force is generated in other solar cells, the state is turned on and the state is maintained thereafter. A control unit including a holding circuit, a day / night discriminating circuit that is turned on only when no electromotive force is generated in all the solar cells, and an AND circuit that takes a logical product of an output of the holding circuit and an output of the day / night discriminating circuit. The self-luminous type is characterized in that the lighting signal generating unit is controlled by the output of the control unit, and the light emitting diode is turned on or blinked at night and turned off during the day. Road marking equipment.